diff options
717 files changed, 14194 insertions, 10335 deletions
diff --git a/Android.mk b/Android.mk index b31f73017..65d123a86 100644 --- a/Android.mk +++ b/Android.mk @@ -14,17 +14,16 @@ LOCAL_PATH := $(call my-dir) - include $(CLEAR_VARS) -LOCAL_SRC_FILES := fuse_sideload.c - +LOCAL_SRC_FILES := fuse_sideload.cpp +LOCAL_CLANG := true LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE LOCAL_MODULE := libfusesideload -LOCAL_STATIC_LIBRARIES := libcutils libc libmincrypt +LOCAL_STATIC_LIBRARIES := libcutils libc libcrypto_static include $(BUILD_STATIC_LIBRARY) include $(CLEAR_VARS) @@ -34,7 +33,7 @@ LOCAL_SRC_FILES := \ asn1_decoder.cpp \ bootloader.cpp \ device.cpp \ - fuse_sdcard_provider.c \ + fuse_sdcard_provider.cpp \ install.cpp \ recovery.cpp \ roots.cpp \ @@ -42,19 +41,23 @@ LOCAL_SRC_FILES := \ ui.cpp \ verifier.cpp \ wear_ui.cpp \ + wear_touch.cpp \ LOCAL_MODULE := recovery LOCAL_FORCE_STATIC_EXECUTABLE := true +ifeq ($(TARGET_USERIMAGES_USE_F2FS),true) ifeq ($(HOST_OS),linux) LOCAL_REQUIRED_MODULES := mkfs.f2fs endif +endif RECOVERY_API_VERSION := 3 RECOVERY_FSTAB_VERSION := 2 LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION) LOCAL_CFLAGS += -Wno-unused-parameter +LOCAL_CLANG := true LOCAL_C_INCLUDES += \ system/vold \ @@ -62,25 +65,28 @@ LOCAL_C_INCLUDES += \ system/core/adb \ LOCAL_STATIC_LIBRARIES := \ + libbatterymonitor \ libext4_utils_static \ libsparse_static \ libminzip \ libz \ libmtdutils \ - libmincrypt \ libminadbd \ libfusesideload \ libminui \ libpng \ libfs_mgr \ + libcrypto_static \ libbase \ libcutils \ + libutils \ liblog \ libselinux \ - libstdc++ \ libm \ libc +LOCAL_HAL_STATIC_LIBRARIES := libhealthd + ifeq ($(TARGET_USERIMAGES_USE_EXT4), true) LOCAL_CFLAGS += -DUSE_EXT4 LOCAL_C_INCLUDES += system/extras/ext4_utils @@ -95,35 +101,43 @@ else LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UI_LIB) endif +ifeq ($(BOARD_CACHEIMAGE_PARTITION_SIZE),) +LOCAL_REQUIRED_MODULES := recovery-persist recovery-refresh +endif + include $(BUILD_EXECUTABLE) -# All the APIs for testing +# recovery-persist (system partition dynamic executable run after /data mounts) +# =============================== include $(CLEAR_VARS) -LOCAL_MODULE := libverifier -LOCAL_MODULE_TAGS := tests -LOCAL_SRC_FILES := \ - asn1_decoder.cpp -include $(BUILD_STATIC_LIBRARY) +LOCAL_SRC_FILES := recovery-persist.cpp +LOCAL_MODULE := recovery-persist +LOCAL_SHARED_LIBRARIES := liblog libbase +LOCAL_CFLAGS := -Werror +LOCAL_INIT_RC := recovery-persist.rc +include $(BUILD_EXECUTABLE) +# recovery-refresh (system partition dynamic executable run at init) +# =============================== include $(CLEAR_VARS) -LOCAL_MODULE := verifier_test -LOCAL_FORCE_STATIC_EXECUTABLE := true +LOCAL_SRC_FILES := recovery-refresh.cpp +LOCAL_MODULE := recovery-refresh +LOCAL_SHARED_LIBRARIES := liblog +LOCAL_CFLAGS := -Werror +LOCAL_INIT_RC := recovery-refresh.rc +include $(BUILD_EXECUTABLE) + +# All the APIs for testing +include $(CLEAR_VARS) +LOCAL_CLANG := true +LOCAL_MODULE := libverifier LOCAL_MODULE_TAGS := tests -LOCAL_CFLAGS += -Wno-unused-parameter LOCAL_SRC_FILES := \ - verifier_test.cpp \ asn1_decoder.cpp \ verifier.cpp \ ui.cpp -LOCAL_STATIC_LIBRARIES := \ - libmincrypt \ - libminui \ - libminzip \ - libcutils \ - libstdc++ \ - libc -include $(BUILD_EXECUTABLE) - +LOCAL_STATIC_LIBRARIES := libcrypto_static +include $(BUILD_STATIC_LIBRARY) include $(LOCAL_PATH)/minui/Android.mk \ $(LOCAL_PATH)/minzip/Android.mk \ @@ -133,5 +147,7 @@ include $(LOCAL_PATH)/minui/Android.mk \ $(LOCAL_PATH)/tools/Android.mk \ $(LOCAL_PATH)/edify/Android.mk \ $(LOCAL_PATH)/uncrypt/Android.mk \ + $(LOCAL_PATH)/otafault/Android.mk \ $(LOCAL_PATH)/updater/Android.mk \ + $(LOCAL_PATH)/update_verifier/Android.mk \ $(LOCAL_PATH)/applypatch/Android.mk @@ -10,3 +10,20 @@ Quick turn-around testing # without flashing the recovery partition: adb reboot bootloader fastboot boot $ANDROID_PRODUCT_OUT/recovery.img + +Running the tests +----------------- + # After setting up environment and lunch. + mmma -j bootable/recovery + + # Running the tests on device. + adb root + adb sync data + + # 32-bit device + adb shell /data/nativetest/recovery_unit_test/recovery_unit_test + adb shell /data/nativetest/recovery_component_test/recovery_component_test + + # Or 64-bit device + adb shell /data/nativetest64/recovery_unit_test/recovery_unit_test + adb shell /data/nativetest64/recovery_component_test/recovery_component_test diff --git a/adb_install.cpp b/adb_install.cpp index e3b94ea59..4aed9d4b1 100644 --- a/adb_install.cpp +++ b/adb_install.cpp @@ -91,7 +91,7 @@ apply_from_adb(RecoveryUI* ui_, bool* wipe_cache, const char* install_file) { // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the host // connects and starts serving a package. Poll for its // appearance. (Note that inotify doesn't work with FUSE.) - int result; + int result = INSTALL_ERROR; int status; bool waited = false; struct stat st; @@ -113,7 +113,7 @@ apply_from_adb(RecoveryUI* ui_, bool* wipe_cache, const char* install_file) { break; } } - result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, install_file, false); + result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, install_file, false, 0); break; } diff --git a/applypatch/Android.mk b/applypatch/Android.mk index 4984093dd..887a570db 100644 --- a/applypatch/Android.mk +++ b/applypatch/Android.mk @@ -13,41 +13,59 @@ # limitations under the License. LOCAL_PATH := $(call my-dir) + include $(CLEAR_VARS) -LOCAL_SRC_FILES := applypatch.c bspatch.c freecache.c imgpatch.c utils.c +LOCAL_CLANG := true +LOCAL_SRC_FILES := applypatch.cpp bspatch.cpp freecache.cpp imgpatch.cpp utils.cpp LOCAL_MODULE := libapplypatch LOCAL_MODULE_TAGS := eng -LOCAL_C_INCLUDES += external/bzip2 external/zlib bootable/recovery -LOCAL_STATIC_LIBRARIES += libmtdutils libmincrypt libbz libz +LOCAL_C_INCLUDES += bootable/recovery +LOCAL_STATIC_LIBRARIES += libbase libotafault libmtdutils libcrypto_static libbz libz include $(BUILD_STATIC_LIBRARY) include $(CLEAR_VARS) -LOCAL_SRC_FILES := main.c -LOCAL_MODULE := applypatch +LOCAL_CLANG := true +LOCAL_SRC_FILES := bspatch.cpp imgpatch.cpp utils.cpp +LOCAL_MODULE := libimgpatch LOCAL_C_INCLUDES += bootable/recovery -LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz -LOCAL_SHARED_LIBRARIES += libz libcutils libstdc++ libc +LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include +LOCAL_STATIC_LIBRARIES += libcrypto_static libbz libz -include $(BUILD_EXECUTABLE) +include $(BUILD_STATIC_LIBRARY) +ifeq ($(HOST_OS),linux) include $(CLEAR_VARS) -LOCAL_SRC_FILES := main.c -LOCAL_MODULE := applypatch_static -LOCAL_FORCE_STATIC_EXECUTABLE := true -LOCAL_MODULE_TAGS := eng +LOCAL_CLANG := true +LOCAL_SRC_FILES := bspatch.cpp imgpatch.cpp utils.cpp +LOCAL_MODULE := libimgpatch LOCAL_C_INCLUDES += bootable/recovery -LOCAL_STATIC_LIBRARIES += libapplypatch libmtdutils libmincrypt libbz -LOCAL_STATIC_LIBRARIES += libz libcutils libstdc++ libc +LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include +LOCAL_STATIC_LIBRARIES += libcrypto_static libbz libz + +include $(BUILD_HOST_STATIC_LIBRARY) +endif # HOST_OS == linux + +include $(CLEAR_VARS) + +LOCAL_CLANG := true +LOCAL_SRC_FILES := main.cpp +LOCAL_MODULE := applypatch +LOCAL_C_INCLUDES += bootable/recovery +LOCAL_STATIC_LIBRARIES += libapplypatch libbase libotafault libmtdutils libcrypto_static libbz \ + libedify \ + +LOCAL_SHARED_LIBRARIES += libz libcutils libc include $(BUILD_EXECUTABLE) include $(CLEAR_VARS) -LOCAL_SRC_FILES := imgdiff.c utils.c bsdiff.c +LOCAL_CLANG := true +LOCAL_SRC_FILES := imgdiff.cpp utils.cpp bsdiff.cpp LOCAL_MODULE := imgdiff LOCAL_FORCE_STATIC_EXECUTABLE := true LOCAL_C_INCLUDES += external/zlib external/bzip2 diff --git a/applypatch/applypatch.c b/applypatch/applypatch.c deleted file mode 100644 index 2358d4292..000000000 --- a/applypatch/applypatch.c +++ /dev/null @@ -1,1048 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <errno.h> -#include <libgen.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <sys/types.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdbool.h> - -#include "mincrypt/sha.h" -#include "applypatch.h" -#include "mtdutils/mtdutils.h" -#include "edify/expr.h" - -static int LoadPartitionContents(const char* filename, FileContents* file); -static ssize_t FileSink(const unsigned char* data, ssize_t len, void* token); -static int GenerateTarget(FileContents* source_file, - const Value* source_patch_value, - FileContents* copy_file, - const Value* copy_patch_value, - const char* source_filename, - const char* target_filename, - const uint8_t target_sha1[SHA_DIGEST_SIZE], - size_t target_size, - const Value* bonus_data); - -static int mtd_partitions_scanned = 0; - -// Read a file into memory; store the file contents and associated -// metadata in *file. -// -// Return 0 on success. -int LoadFileContents(const char* filename, FileContents* file) { - file->data = NULL; - - // A special 'filename' beginning with "MTD:" or "EMMC:" means to - // load the contents of a partition. - if (strncmp(filename, "MTD:", 4) == 0 || - strncmp(filename, "EMMC:", 5) == 0) { - return LoadPartitionContents(filename, file); - } - - if (stat(filename, &file->st) != 0) { - printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); - return -1; - } - - file->size = file->st.st_size; - file->data = malloc(file->size); - - FILE* f = fopen(filename, "rb"); - if (f == NULL) { - printf("failed to open \"%s\": %s\n", filename, strerror(errno)); - free(file->data); - file->data = NULL; - return -1; - } - - ssize_t bytes_read = fread(file->data, 1, file->size, f); - if (bytes_read != file->size) { - printf("short read of \"%s\" (%ld bytes of %ld)\n", - filename, (long)bytes_read, (long)file->size); - free(file->data); - file->data = NULL; - return -1; - } - fclose(f); - - SHA_hash(file->data, file->size, file->sha1); - return 0; -} - -static size_t* size_array; -// comparison function for qsort()ing an int array of indexes into -// size_array[]. -static int compare_size_indices(const void* a, const void* b) { - int aa = *(int*)a; - int bb = *(int*)b; - if (size_array[aa] < size_array[bb]) { - return -1; - } else if (size_array[aa] > size_array[bb]) { - return 1; - } else { - return 0; - } -} - -// Load the contents of an MTD or EMMC partition into the provided -// FileContents. filename should be a string of the form -// "MTD:<partition_name>:<size_1>:<sha1_1>:<size_2>:<sha1_2>:..." (or -// "EMMC:<partition_device>:..."). The smallest size_n bytes for -// which that prefix of the partition contents has the corresponding -// sha1 hash will be loaded. It is acceptable for a size value to be -// repeated with different sha1s. Will return 0 on success. -// -// This complexity is needed because if an OTA installation is -// interrupted, the partition might contain either the source or the -// target data, which might be of different lengths. We need to know -// the length in order to read from a partition (there is no -// "end-of-file" marker), so the caller must specify the possible -// lengths and the hash of the data, and we'll do the load expecting -// to find one of those hashes. -enum PartitionType { MTD, EMMC }; - -static int LoadPartitionContents(const char* filename, FileContents* file) { - char* copy = strdup(filename); - const char* magic = strtok(copy, ":"); - - enum PartitionType type; - - if (strcmp(magic, "MTD") == 0) { - type = MTD; - } else if (strcmp(magic, "EMMC") == 0) { - type = EMMC; - } else { - printf("LoadPartitionContents called with bad filename (%s)\n", - filename); - return -1; - } - const char* partition = strtok(NULL, ":"); - - int i; - int colons = 0; - for (i = 0; filename[i] != '\0'; ++i) { - if (filename[i] == ':') { - ++colons; - } - } - if (colons < 3 || colons%2 == 0) { - printf("LoadPartitionContents called with bad filename (%s)\n", - filename); - } - - int pairs = (colons-1)/2; // # of (size,sha1) pairs in filename - int* index = malloc(pairs * sizeof(int)); - size_t* size = malloc(pairs * sizeof(size_t)); - char** sha1sum = malloc(pairs * sizeof(char*)); - - for (i = 0; i < pairs; ++i) { - const char* size_str = strtok(NULL, ":"); - size[i] = strtol(size_str, NULL, 10); - if (size[i] == 0) { - printf("LoadPartitionContents called with bad size (%s)\n", filename); - return -1; - } - sha1sum[i] = strtok(NULL, ":"); - index[i] = i; - } - - // sort the index[] array so it indexes the pairs in order of - // increasing size. - size_array = size; - qsort(index, pairs, sizeof(int), compare_size_indices); - - MtdReadContext* ctx = NULL; - FILE* dev = NULL; - - switch (type) { - case MTD: - if (!mtd_partitions_scanned) { - mtd_scan_partitions(); - mtd_partitions_scanned = 1; - } - - const MtdPartition* mtd = mtd_find_partition_by_name(partition); - if (mtd == NULL) { - printf("mtd partition \"%s\" not found (loading %s)\n", - partition, filename); - return -1; - } - - ctx = mtd_read_partition(mtd); - if (ctx == NULL) { - printf("failed to initialize read of mtd partition \"%s\"\n", - partition); - return -1; - } - break; - - case EMMC: - dev = fopen(partition, "rb"); - if (dev == NULL) { - printf("failed to open emmc partition \"%s\": %s\n", - partition, strerror(errno)); - return -1; - } - } - - SHA_CTX sha_ctx; - SHA_init(&sha_ctx); - uint8_t parsed_sha[SHA_DIGEST_SIZE]; - - // allocate enough memory to hold the largest size. - file->data = malloc(size[index[pairs-1]]); - char* p = (char*)file->data; - file->size = 0; // # bytes read so far - - for (i = 0; i < pairs; ++i) { - // Read enough additional bytes to get us up to the next size - // (again, we're trying the possibilities in order of increasing - // size). - size_t next = size[index[i]] - file->size; - size_t read = 0; - if (next > 0) { - switch (type) { - case MTD: - read = mtd_read_data(ctx, p, next); - break; - - case EMMC: - read = fread(p, 1, next, dev); - break; - } - if (next != read) { - printf("short read (%zu bytes of %zu) for partition \"%s\"\n", - read, next, partition); - free(file->data); - file->data = NULL; - return -1; - } - SHA_update(&sha_ctx, p, read); - file->size += read; - } - - // Duplicate the SHA context and finalize the duplicate so we can - // check it against this pair's expected hash. - SHA_CTX temp_ctx; - memcpy(&temp_ctx, &sha_ctx, sizeof(SHA_CTX)); - const uint8_t* sha_so_far = SHA_final(&temp_ctx); - - if (ParseSha1(sha1sum[index[i]], parsed_sha) != 0) { - printf("failed to parse sha1 %s in %s\n", - sha1sum[index[i]], filename); - free(file->data); - file->data = NULL; - return -1; - } - - if (memcmp(sha_so_far, parsed_sha, SHA_DIGEST_SIZE) == 0) { - // we have a match. stop reading the partition; we'll return - // the data we've read so far. - printf("partition read matched size %zu sha %s\n", - size[index[i]], sha1sum[index[i]]); - break; - } - - p += read; - } - - switch (type) { - case MTD: - mtd_read_close(ctx); - break; - - case EMMC: - fclose(dev); - break; - } - - - if (i == pairs) { - // Ran off the end of the list of (size,sha1) pairs without - // finding a match. - printf("contents of partition \"%s\" didn't match %s\n", - partition, filename); - free(file->data); - file->data = NULL; - return -1; - } - - const uint8_t* sha_final = SHA_final(&sha_ctx); - for (i = 0; i < SHA_DIGEST_SIZE; ++i) { - file->sha1[i] = sha_final[i]; - } - - // Fake some stat() info. - file->st.st_mode = 0644; - file->st.st_uid = 0; - file->st.st_gid = 0; - - free(copy); - free(index); - free(size); - free(sha1sum); - - return 0; -} - - -// Save the contents of the given FileContents object under the given -// filename. Return 0 on success. -int SaveFileContents(const char* filename, const FileContents* file) { - int fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, S_IRUSR | S_IWUSR); - if (fd < 0) { - printf("failed to open \"%s\" for write: %s\n", - filename, strerror(errno)); - return -1; - } - - ssize_t bytes_written = FileSink(file->data, file->size, &fd); - if (bytes_written != file->size) { - printf("short write of \"%s\" (%ld bytes of %ld) (%s)\n", - filename, (long)bytes_written, (long)file->size, - strerror(errno)); - close(fd); - return -1; - } - if (fsync(fd) != 0) { - printf("fsync of \"%s\" failed: %s\n", filename, strerror(errno)); - return -1; - } - if (close(fd) != 0) { - printf("close of \"%s\" failed: %s\n", filename, strerror(errno)); - return -1; - } - - if (chmod(filename, file->st.st_mode) != 0) { - printf("chmod of \"%s\" failed: %s\n", filename, strerror(errno)); - return -1; - } - if (chown(filename, file->st.st_uid, file->st.st_gid) != 0) { - printf("chown of \"%s\" failed: %s\n", filename, strerror(errno)); - return -1; - } - - return 0; -} - -// Write a memory buffer to 'target' partition, a string of the form -// "MTD:<partition>[:...]" or "EMMC:<partition_device>:". Return 0 on -// success. -int WriteToPartition(unsigned char* data, size_t len, - const char* target) { - char* copy = strdup(target); - const char* magic = strtok(copy, ":"); - - enum PartitionType type; - if (strcmp(magic, "MTD") == 0) { - type = MTD; - } else if (strcmp(magic, "EMMC") == 0) { - type = EMMC; - } else { - printf("WriteToPartition called with bad target (%s)\n", target); - return -1; - } - const char* partition = strtok(NULL, ":"); - - if (partition == NULL) { - printf("bad partition target name \"%s\"\n", target); - return -1; - } - - switch (type) { - case MTD: - if (!mtd_partitions_scanned) { - mtd_scan_partitions(); - mtd_partitions_scanned = 1; - } - - const MtdPartition* mtd = mtd_find_partition_by_name(partition); - if (mtd == NULL) { - printf("mtd partition \"%s\" not found for writing\n", - partition); - return -1; - } - - MtdWriteContext* ctx = mtd_write_partition(mtd); - if (ctx == NULL) { - printf("failed to init mtd partition \"%s\" for writing\n", - partition); - return -1; - } - - size_t written = mtd_write_data(ctx, (char*)data, len); - if (written != len) { - printf("only wrote %zu of %zu bytes to MTD %s\n", - written, len, partition); - mtd_write_close(ctx); - return -1; - } - - if (mtd_erase_blocks(ctx, -1) < 0) { - printf("error finishing mtd write of %s\n", partition); - mtd_write_close(ctx); - return -1; - } - - if (mtd_write_close(ctx)) { - printf("error closing mtd write of %s\n", partition); - return -1; - } - break; - - case EMMC: - { - size_t start = 0; - int success = 0; - int fd = open(partition, O_RDWR | O_SYNC); - if (fd < 0) { - printf("failed to open %s: %s\n", partition, strerror(errno)); - return -1; - } - int attempt; - - for (attempt = 0; attempt < 2; ++attempt) { - if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) { - printf("failed seek on %s: %s\n", - partition, strerror(errno)); - return -1; - } - while (start < len) { - size_t to_write = len - start; - if (to_write > 1<<20) to_write = 1<<20; - - ssize_t written = TEMP_FAILURE_RETRY(write(fd, data+start, to_write)); - if (written == -1) { - printf("failed write writing to %s: %s\n", partition, strerror(errno)); - return -1; - } - start += written; - } - if (fsync(fd) != 0) { - printf("failed to sync to %s (%s)\n", - partition, strerror(errno)); - return -1; - } - if (close(fd) != 0) { - printf("failed to close %s (%s)\n", - partition, strerror(errno)); - return -1; - } - fd = open(partition, O_RDONLY); - if (fd < 0) { - printf("failed to reopen %s for verify (%s)\n", - partition, strerror(errno)); - return -1; - } - - // drop caches so our subsequent verification read - // won't just be reading the cache. - sync(); - int dc = open("/proc/sys/vm/drop_caches", O_WRONLY); - if (TEMP_FAILURE_RETRY(write(dc, "3\n", 2)) == -1) { - printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno)); - } else { - printf(" caches dropped\n"); - } - close(dc); - sleep(1); - - // verify - if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) { - printf("failed to seek back to beginning of %s: %s\n", - partition, strerror(errno)); - return -1; - } - unsigned char buffer[4096]; - start = len; - size_t p; - for (p = 0; p < len; p += sizeof(buffer)) { - size_t to_read = len - p; - if (to_read > sizeof(buffer)) to_read = sizeof(buffer); - - size_t so_far = 0; - while (so_far < to_read) { - ssize_t read_count = - TEMP_FAILURE_RETRY(read(fd, buffer+so_far, to_read-so_far)); - if (read_count == -1) { - printf("verify read error %s at %zu: %s\n", - partition, p, strerror(errno)); - return -1; - } - if ((size_t)read_count < to_read) { - printf("short verify read %s at %zu: %zd %zu %s\n", - partition, p, read_count, to_read, strerror(errno)); - } - so_far += read_count; - } - - if (memcmp(buffer, data+p, to_read)) { - printf("verification failed starting at %zu\n", p); - start = p; - break; - } - } - - if (start == len) { - printf("verification read succeeded (attempt %d)\n", attempt+1); - success = true; - break; - } - } - - if (!success) { - printf("failed to verify after all attempts\n"); - return -1; - } - - if (close(fd) != 0) { - printf("error closing %s (%s)\n", partition, strerror(errno)); - return -1; - } - sync(); - break; - } - } - - free(copy); - return 0; -} - - -// Take a string 'str' of 40 hex digits and parse it into the 20 -// byte array 'digest'. 'str' may contain only the digest or be of -// the form "<digest>:<anything>". Return 0 on success, -1 on any -// error. -int ParseSha1(const char* str, uint8_t* digest) { - int i; - const char* ps = str; - uint8_t* pd = digest; - for (i = 0; i < SHA_DIGEST_SIZE * 2; ++i, ++ps) { - int digit; - if (*ps >= '0' && *ps <= '9') { - digit = *ps - '0'; - } else if (*ps >= 'a' && *ps <= 'f') { - digit = *ps - 'a' + 10; - } else if (*ps >= 'A' && *ps <= 'F') { - digit = *ps - 'A' + 10; - } else { - return -1; - } - if (i % 2 == 0) { - *pd = digit << 4; - } else { - *pd |= digit; - ++pd; - } - } - if (*ps != '\0') return -1; - return 0; -} - -// Search an array of sha1 strings for one matching the given sha1. -// Return the index of the match on success, or -1 if no match is -// found. -int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str, - int num_patches) { - int i; - uint8_t patch_sha1[SHA_DIGEST_SIZE]; - for (i = 0; i < num_patches; ++i) { - if (ParseSha1(patch_sha1_str[i], patch_sha1) == 0 && - memcmp(patch_sha1, sha1, SHA_DIGEST_SIZE) == 0) { - return i; - } - } - return -1; -} - -// Returns 0 if the contents of the file (argv[2]) or the cached file -// match any of the sha1's on the command line (argv[3:]). Returns -// nonzero otherwise. -int applypatch_check(const char* filename, - int num_patches, char** const patch_sha1_str) { - FileContents file; - file.data = NULL; - - // It's okay to specify no sha1s; the check will pass if the - // LoadFileContents is successful. (Useful for reading - // partitions, where the filename encodes the sha1s; no need to - // check them twice.) - if (LoadFileContents(filename, &file) != 0 || - (num_patches > 0 && - FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0)) { - printf("file \"%s\" doesn't have any of expected " - "sha1 sums; checking cache\n", filename); - - free(file.data); - file.data = NULL; - - // If the source file is missing or corrupted, it might be because - // we were killed in the middle of patching it. A copy of it - // should have been made in CACHE_TEMP_SOURCE. If that file - // exists and matches the sha1 we're looking for, the check still - // passes. - - if (LoadFileContents(CACHE_TEMP_SOURCE, &file) != 0) { - printf("failed to load cache file\n"); - return 1; - } - - if (FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0) { - printf("cache bits don't match any sha1 for \"%s\"\n", filename); - free(file.data); - return 1; - } - } - - free(file.data); - return 0; -} - -int ShowLicenses() { - ShowBSDiffLicense(); - return 0; -} - -ssize_t FileSink(const unsigned char* data, ssize_t len, void* token) { - int fd = *(int *)token; - ssize_t done = 0; - ssize_t wrote; - while (done < (ssize_t) len) { - wrote = TEMP_FAILURE_RETRY(write(fd, data+done, len-done)); - if (wrote == -1) { - printf("error writing %d bytes: %s\n", (int)(len-done), strerror(errno)); - return done; - } - done += wrote; - } - return done; -} - -typedef struct { - unsigned char* buffer; - ssize_t size; - ssize_t pos; -} MemorySinkInfo; - -ssize_t MemorySink(const unsigned char* data, ssize_t len, void* token) { - MemorySinkInfo* msi = (MemorySinkInfo*)token; - if (msi->size - msi->pos < len) { - return -1; - } - memcpy(msi->buffer + msi->pos, data, len); - msi->pos += len; - return len; -} - -// Return the amount of free space (in bytes) on the filesystem -// containing filename. filename must exist. Return -1 on error. -size_t FreeSpaceForFile(const char* filename) { - struct statfs sf; - if (statfs(filename, &sf) != 0) { - printf("failed to statfs %s: %s\n", filename, strerror(errno)); - return -1; - } - return sf.f_bsize * sf.f_bavail; -} - -int CacheSizeCheck(size_t bytes) { - if (MakeFreeSpaceOnCache(bytes) < 0) { - printf("unable to make %ld bytes available on /cache\n", (long)bytes); - return 1; - } else { - return 0; - } -} - -static void print_short_sha1(const uint8_t sha1[SHA_DIGEST_SIZE]) { - int i; - const char* hex = "0123456789abcdef"; - for (i = 0; i < 4; ++i) { - putchar(hex[(sha1[i]>>4) & 0xf]); - putchar(hex[sha1[i] & 0xf]); - } -} - -// This function applies binary patches to files in a way that is safe -// (the original file is not touched until we have the desired -// replacement for it) and idempotent (it's okay to run this program -// multiple times). -// -// - if the sha1 hash of <target_filename> is <target_sha1_string>, -// does nothing and exits successfully. -// -// - otherwise, if the sha1 hash of <source_filename> is one of the -// entries in <patch_sha1_str>, the corresponding patch from -// <patch_data> (which must be a VAL_BLOB) is applied to produce a -// new file (the type of patch is automatically detected from the -// blob daat). If that new file has sha1 hash <target_sha1_str>, -// moves it to replace <target_filename>, and exits successfully. -// Note that if <source_filename> and <target_filename> are not the -// same, <source_filename> is NOT deleted on success. -// <target_filename> may be the string "-" to mean "the same as -// source_filename". -// -// - otherwise, or if any error is encountered, exits with non-zero -// status. -// -// <source_filename> may refer to a partition to read the source data. -// See the comments for the LoadPartition Contents() function above -// for the format of such a filename. - -int applypatch(const char* source_filename, - const char* target_filename, - const char* target_sha1_str, - size_t target_size, - int num_patches, - char** const patch_sha1_str, - Value** patch_data, - Value* bonus_data) { - printf("patch %s: ", source_filename); - - if (target_filename[0] == '-' && - target_filename[1] == '\0') { - target_filename = source_filename; - } - - uint8_t target_sha1[SHA_DIGEST_SIZE]; - if (ParseSha1(target_sha1_str, target_sha1) != 0) { - printf("failed to parse tgt-sha1 \"%s\"\n", target_sha1_str); - return 1; - } - - FileContents copy_file; - FileContents source_file; - copy_file.data = NULL; - source_file.data = NULL; - const Value* source_patch_value = NULL; - const Value* copy_patch_value = NULL; - - // We try to load the target file into the source_file object. - if (LoadFileContents(target_filename, &source_file) == 0) { - if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_SIZE) == 0) { - // The early-exit case: the patch was already applied, this file - // has the desired hash, nothing for us to do. - printf("already "); - print_short_sha1(target_sha1); - putchar('\n'); - free(source_file.data); - return 0; - } - } - - if (source_file.data == NULL || - (target_filename != source_filename && - strcmp(target_filename, source_filename) != 0)) { - // Need to load the source file: either we failed to load the - // target file, or we did but it's different from the source file. - free(source_file.data); - source_file.data = NULL; - LoadFileContents(source_filename, &source_file); - } - - if (source_file.data != NULL) { - int to_use = FindMatchingPatch(source_file.sha1, - patch_sha1_str, num_patches); - if (to_use >= 0) { - source_patch_value = patch_data[to_use]; - } - } - - if (source_patch_value == NULL) { - free(source_file.data); - source_file.data = NULL; - printf("source file is bad; trying copy\n"); - - if (LoadFileContents(CACHE_TEMP_SOURCE, ©_file) < 0) { - // fail. - printf("failed to read copy file\n"); - return 1; - } - - int to_use = FindMatchingPatch(copy_file.sha1, - patch_sha1_str, num_patches); - if (to_use >= 0) { - copy_patch_value = patch_data[to_use]; - } - - if (copy_patch_value == NULL) { - // fail. - printf("copy file doesn't match source SHA-1s either\n"); - free(copy_file.data); - return 1; - } - } - - int result = GenerateTarget(&source_file, source_patch_value, - ©_file, copy_patch_value, - source_filename, target_filename, - target_sha1, target_size, bonus_data); - free(source_file.data); - free(copy_file.data); - - return result; -} - -static int GenerateTarget(FileContents* source_file, - const Value* source_patch_value, - FileContents* copy_file, - const Value* copy_patch_value, - const char* source_filename, - const char* target_filename, - const uint8_t target_sha1[SHA_DIGEST_SIZE], - size_t target_size, - const Value* bonus_data) { - int retry = 1; - SHA_CTX ctx; - int output; - MemorySinkInfo msi; - FileContents* source_to_use; - char* outname; - int made_copy = 0; - - // assume that target_filename (eg "/system/app/Foo.apk") is located - // on the same filesystem as its top-level directory ("/system"). - // We need something that exists for calling statfs(). - char target_fs[strlen(target_filename)+1]; - char* slash = strchr(target_filename+1, '/'); - if (slash != NULL) { - int count = slash - target_filename; - strncpy(target_fs, target_filename, count); - target_fs[count] = '\0'; - } else { - strcpy(target_fs, target_filename); - } - - do { - // Is there enough room in the target filesystem to hold the patched - // file? - - if (strncmp(target_filename, "MTD:", 4) == 0 || - strncmp(target_filename, "EMMC:", 5) == 0) { - // If the target is a partition, we're actually going to - // write the output to /tmp and then copy it to the - // partition. statfs() always returns 0 blocks free for - // /tmp, so instead we'll just assume that /tmp has enough - // space to hold the file. - - // We still write the original source to cache, in case - // the partition write is interrupted. - if (MakeFreeSpaceOnCache(source_file->size) < 0) { - printf("not enough free space on /cache\n"); - return 1; - } - if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) { - printf("failed to back up source file\n"); - return 1; - } - made_copy = 1; - retry = 0; - } else { - int enough_space = 0; - if (retry > 0) { - size_t free_space = FreeSpaceForFile(target_fs); - enough_space = - (free_space > (256 << 10)) && // 256k (two-block) minimum - (free_space > (target_size * 3 / 2)); // 50% margin of error - if (!enough_space) { - printf("target %ld bytes; free space %ld bytes; retry %d; enough %d\n", - (long)target_size, (long)free_space, retry, enough_space); - } - } - - if (!enough_space) { - retry = 0; - } - - if (!enough_space && source_patch_value != NULL) { - // Using the original source, but not enough free space. First - // copy the source file to cache, then delete it from the original - // location. - - if (strncmp(source_filename, "MTD:", 4) == 0 || - strncmp(source_filename, "EMMC:", 5) == 0) { - // It's impossible to free space on the target filesystem by - // deleting the source if the source is a partition. If - // we're ever in a state where we need to do this, fail. - printf("not enough free space for target but source " - "is partition\n"); - return 1; - } - - if (MakeFreeSpaceOnCache(source_file->size) < 0) { - printf("not enough free space on /cache\n"); - return 1; - } - - if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) { - printf("failed to back up source file\n"); - return 1; - } - made_copy = 1; - unlink(source_filename); - - size_t free_space = FreeSpaceForFile(target_fs); - printf("(now %ld bytes free for target) ", (long)free_space); - } - } - - const Value* patch; - if (source_patch_value != NULL) { - source_to_use = source_file; - patch = source_patch_value; - } else { - source_to_use = copy_file; - patch = copy_patch_value; - } - - if (patch->type != VAL_BLOB) { - printf("patch is not a blob\n"); - return 1; - } - - SinkFn sink = NULL; - void* token = NULL; - output = -1; - outname = NULL; - if (strncmp(target_filename, "MTD:", 4) == 0 || - strncmp(target_filename, "EMMC:", 5) == 0) { - // We store the decoded output in memory. - msi.buffer = malloc(target_size); - if (msi.buffer == NULL) { - printf("failed to alloc %ld bytes for output\n", - (long)target_size); - return 1; - } - msi.pos = 0; - msi.size = target_size; - sink = MemorySink; - token = &msi; - } else { - // We write the decoded output to "<tgt-file>.patch". - outname = (char*)malloc(strlen(target_filename) + 10); - strcpy(outname, target_filename); - strcat(outname, ".patch"); - - output = open(outname, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, - S_IRUSR | S_IWUSR); - if (output < 0) { - printf("failed to open output file %s: %s\n", - outname, strerror(errno)); - return 1; - } - sink = FileSink; - token = &output; - } - - char* header = patch->data; - ssize_t header_bytes_read = patch->size; - - SHA_init(&ctx); - - int result; - - if (header_bytes_read >= 8 && - memcmp(header, "BSDIFF40", 8) == 0) { - result = ApplyBSDiffPatch(source_to_use->data, source_to_use->size, - patch, 0, sink, token, &ctx); - } else if (header_bytes_read >= 8 && - memcmp(header, "IMGDIFF2", 8) == 0) { - result = ApplyImagePatch(source_to_use->data, source_to_use->size, - patch, sink, token, &ctx, bonus_data); - } else { - printf("Unknown patch file format\n"); - return 1; - } - - if (output >= 0) { - if (fsync(output) != 0) { - printf("failed to fsync file \"%s\" (%s)\n", outname, strerror(errno)); - result = 1; - } - if (close(output) != 0) { - printf("failed to close file \"%s\" (%s)\n", outname, strerror(errno)); - result = 1; - } - } - - if (result != 0) { - if (retry == 0) { - printf("applying patch failed\n"); - return result != 0; - } else { - printf("applying patch failed; retrying\n"); - } - if (outname != NULL) { - unlink(outname); - } - } else { - // succeeded; no need to retry - break; - } - } while (retry-- > 0); - - const uint8_t* current_target_sha1 = SHA_final(&ctx); - if (memcmp(current_target_sha1, target_sha1, SHA_DIGEST_SIZE) != 0) { - printf("patch did not produce expected sha1\n"); - return 1; - } else { - printf("now "); - print_short_sha1(target_sha1); - putchar('\n'); - } - - if (output < 0) { - // Copy the temp file to the partition. - if (WriteToPartition(msi.buffer, msi.pos, target_filename) != 0) { - printf("write of patched data to %s failed\n", target_filename); - return 1; - } - free(msi.buffer); - } else { - // Give the .patch file the same owner, group, and mode of the - // original source file. - if (chmod(outname, source_to_use->st.st_mode) != 0) { - printf("chmod of \"%s\" failed: %s\n", outname, strerror(errno)); - return 1; - } - if (chown(outname, source_to_use->st.st_uid, - source_to_use->st.st_gid) != 0) { - printf("chown of \"%s\" failed: %s\n", outname, strerror(errno)); - return 1; - } - - // Finally, rename the .patch file to replace the target file. - if (rename(outname, target_filename) != 0) { - printf("rename of .patch to \"%s\" failed: %s\n", - target_filename, strerror(errno)); - return 1; - } - } - - // If this run of applypatch created the copy, and we're here, we - // can delete it. - if (made_copy) unlink(CACHE_TEMP_SOURCE); - - // Success! - return 0; -} diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp new file mode 100644 index 000000000..7985fc0c6 --- /dev/null +++ b/applypatch/applypatch.cpp @@ -0,0 +1,994 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <errno.h> +#include <fcntl.h> +#include <libgen.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/statfs.h> +#include <sys/types.h> +#include <unistd.h> + +#include <memory> +#include <string> + +#include <android-base/strings.h> + +#include "openssl/sha.h" +#include "applypatch.h" +#include "mtdutils/mtdutils.h" +#include "edify/expr.h" +#include "ota_io.h" +#include "print_sha1.h" + +static int LoadPartitionContents(const char* filename, FileContents* file); +static ssize_t FileSink(const unsigned char* data, ssize_t len, void* token); +static int GenerateTarget(FileContents* source_file, + const Value* source_patch_value, + FileContents* copy_file, + const Value* copy_patch_value, + const char* source_filename, + const char* target_filename, + const uint8_t target_sha1[SHA_DIGEST_LENGTH], + size_t target_size, + const Value* bonus_data); + +static bool mtd_partitions_scanned = false; + +// Read a file into memory; store the file contents and associated +// metadata in *file. +// +// Return 0 on success. +int LoadFileContents(const char* filename, FileContents* file) { + // A special 'filename' beginning with "MTD:" or "EMMC:" means to + // load the contents of a partition. + if (strncmp(filename, "MTD:", 4) == 0 || + strncmp(filename, "EMMC:", 5) == 0) { + return LoadPartitionContents(filename, file); + } + + if (stat(filename, &file->st) != 0) { + printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); + return -1; + } + + std::vector<unsigned char> data(file->st.st_size); + FILE* f = ota_fopen(filename, "rb"); + if (f == NULL) { + printf("failed to open \"%s\": %s\n", filename, strerror(errno)); + return -1; + } + + size_t bytes_read = ota_fread(data.data(), 1, data.size(), f); + if (bytes_read != data.size()) { + printf("short read of \"%s\" (%zu bytes of %zd)\n", filename, bytes_read, data.size()); + ota_fclose(f); + return -1; + } + ota_fclose(f); + file->data = std::move(data); + SHA1(file->data.data(), file->data.size(), file->sha1); + return 0; +} + +// Load the contents of an MTD or EMMC partition into the provided +// FileContents. filename should be a string of the form +// "MTD:<partition_name>:<size_1>:<sha1_1>:<size_2>:<sha1_2>:..." (or +// "EMMC:<partition_device>:..."). The smallest size_n bytes for +// which that prefix of the partition contents has the corresponding +// sha1 hash will be loaded. It is acceptable for a size value to be +// repeated with different sha1s. Will return 0 on success. +// +// This complexity is needed because if an OTA installation is +// interrupted, the partition might contain either the source or the +// target data, which might be of different lengths. We need to know +// the length in order to read from a partition (there is no +// "end-of-file" marker), so the caller must specify the possible +// lengths and the hash of the data, and we'll do the load expecting +// to find one of those hashes. +enum PartitionType { MTD, EMMC }; + +static int LoadPartitionContents(const char* filename, FileContents* file) { + std::string copy(filename); + std::vector<std::string> pieces = android::base::Split(copy, ":"); + if (pieces.size() < 4 || pieces.size() % 2 != 0) { + printf("LoadPartitionContents called with bad filename (%s)\n", filename); + return -1; + } + + enum PartitionType type; + if (pieces[0] == "MTD") { + type = MTD; + } else if (pieces[0] == "EMMC") { + type = EMMC; + } else { + printf("LoadPartitionContents called with bad filename (%s)\n", filename); + return -1; + } + const char* partition = pieces[1].c_str(); + + size_t pairs = (pieces.size() - 2) / 2; // # of (size, sha1) pairs in filename + std::vector<size_t> index(pairs); + std::vector<size_t> size(pairs); + std::vector<std::string> sha1sum(pairs); + + for (size_t i = 0; i < pairs; ++i) { + size[i] = strtol(pieces[i*2+2].c_str(), NULL, 10); + if (size[i] == 0) { + printf("LoadPartitionContents called with bad size (%s)\n", filename); + return -1; + } + sha1sum[i] = pieces[i*2+3].c_str(); + index[i] = i; + } + + // Sort the index[] array so it indexes the pairs in order of increasing size. + sort(index.begin(), index.end(), + [&](const size_t& i, const size_t& j) { + return (size[i] < size[j]); + } + ); + + MtdReadContext* ctx = NULL; + FILE* dev = NULL; + + switch (type) { + case MTD: { + if (!mtd_partitions_scanned) { + mtd_scan_partitions(); + mtd_partitions_scanned = true; + } + + const MtdPartition* mtd = mtd_find_partition_by_name(partition); + if (mtd == NULL) { + printf("mtd partition \"%s\" not found (loading %s)\n", partition, filename); + return -1; + } + + ctx = mtd_read_partition(mtd); + if (ctx == NULL) { + printf("failed to initialize read of mtd partition \"%s\"\n", partition); + return -1; + } + break; + } + + case EMMC: + dev = ota_fopen(partition, "rb"); + if (dev == NULL) { + printf("failed to open emmc partition \"%s\": %s\n", partition, strerror(errno)); + return -1; + } + } + + SHA_CTX sha_ctx; + SHA1_Init(&sha_ctx); + uint8_t parsed_sha[SHA_DIGEST_LENGTH]; + + // Allocate enough memory to hold the largest size. + std::vector<unsigned char> data(size[index[pairs-1]]); + char* p = reinterpret_cast<char*>(data.data()); + size_t data_size = 0; // # bytes read so far + bool found = false; + + for (size_t i = 0; i < pairs; ++i) { + // Read enough additional bytes to get us up to the next size. (Again, + // we're trying the possibilities in order of increasing size). + size_t next = size[index[i]] - data_size; + if (next > 0) { + size_t read = 0; + switch (type) { + case MTD: + read = mtd_read_data(ctx, p, next); + break; + + case EMMC: + read = ota_fread(p, 1, next, dev); + break; + } + if (next != read) { + printf("short read (%zu bytes of %zu) for partition \"%s\"\n", + read, next, partition); + return -1; + } + SHA1_Update(&sha_ctx, p, read); + data_size += read; + p += read; + } + + // Duplicate the SHA context and finalize the duplicate so we can + // check it against this pair's expected hash. + SHA_CTX temp_ctx; + memcpy(&temp_ctx, &sha_ctx, sizeof(SHA_CTX)); + uint8_t sha_so_far[SHA_DIGEST_LENGTH]; + SHA1_Final(sha_so_far, &temp_ctx); + + if (ParseSha1(sha1sum[index[i]].c_str(), parsed_sha) != 0) { + printf("failed to parse sha1 %s in %s\n", sha1sum[index[i]].c_str(), filename); + return -1; + } + + if (memcmp(sha_so_far, parsed_sha, SHA_DIGEST_LENGTH) == 0) { + // we have a match. stop reading the partition; we'll return + // the data we've read so far. + printf("partition read matched size %zu sha %s\n", + size[index[i]], sha1sum[index[i]].c_str()); + found = true; + break; + } + } + + switch (type) { + case MTD: + mtd_read_close(ctx); + break; + + case EMMC: + ota_fclose(dev); + break; + } + + + if (!found) { + // Ran off the end of the list of (size,sha1) pairs without finding a match. + printf("contents of partition \"%s\" didn't match %s\n", partition, filename); + return -1; + } + + SHA1_Final(file->sha1, &sha_ctx); + + data.resize(data_size); + file->data = std::move(data); + // Fake some stat() info. + file->st.st_mode = 0644; + file->st.st_uid = 0; + file->st.st_gid = 0; + + return 0; +} + + +// Save the contents of the given FileContents object under the given +// filename. Return 0 on success. +int SaveFileContents(const char* filename, const FileContents* file) { + int fd = ota_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, S_IRUSR | S_IWUSR); + if (fd < 0) { + printf("failed to open \"%s\" for write: %s\n", filename, strerror(errno)); + return -1; + } + + ssize_t bytes_written = FileSink(file->data.data(), file->data.size(), &fd); + if (bytes_written != static_cast<ssize_t>(file->data.size())) { + printf("short write of \"%s\" (%zd bytes of %zu) (%s)\n", + filename, bytes_written, file->data.size(), strerror(errno)); + ota_close(fd); + return -1; + } + if (ota_fsync(fd) != 0) { + printf("fsync of \"%s\" failed: %s\n", filename, strerror(errno)); + return -1; + } + if (ota_close(fd) != 0) { + printf("close of \"%s\" failed: %s\n", filename, strerror(errno)); + return -1; + } + + if (chmod(filename, file->st.st_mode) != 0) { + printf("chmod of \"%s\" failed: %s\n", filename, strerror(errno)); + return -1; + } + if (chown(filename, file->st.st_uid, file->st.st_gid) != 0) { + printf("chown of \"%s\" failed: %s\n", filename, strerror(errno)); + return -1; + } + + return 0; +} + +// Write a memory buffer to 'target' partition, a string of the form +// "MTD:<partition>[:...]" or "EMMC:<partition_device>[:...]". The target name +// might contain multiple colons, but WriteToPartition() only uses the first +// two and ignores the rest. Return 0 on success. +int WriteToPartition(const unsigned char* data, size_t len, const char* target) { + std::string copy(target); + std::vector<std::string> pieces = android::base::Split(copy, ":"); + + if (pieces.size() < 2) { + printf("WriteToPartition called with bad target (%s)\n", target); + return -1; + } + + enum PartitionType type; + if (pieces[0] == "MTD") { + type = MTD; + } else if (pieces[0] == "EMMC") { + type = EMMC; + } else { + printf("WriteToPartition called with bad target (%s)\n", target); + return -1; + } + const char* partition = pieces[1].c_str(); + + switch (type) { + case MTD: { + if (!mtd_partitions_scanned) { + mtd_scan_partitions(); + mtd_partitions_scanned = true; + } + + const MtdPartition* mtd = mtd_find_partition_by_name(partition); + if (mtd == NULL) { + printf("mtd partition \"%s\" not found for writing\n", partition); + return -1; + } + + MtdWriteContext* ctx = mtd_write_partition(mtd); + if (ctx == NULL) { + printf("failed to init mtd partition \"%s\" for writing\n", partition); + return -1; + } + + size_t written = mtd_write_data(ctx, reinterpret_cast<const char*>(data), len); + if (written != len) { + printf("only wrote %zu of %zu bytes to MTD %s\n", written, len, partition); + mtd_write_close(ctx); + return -1; + } + + if (mtd_erase_blocks(ctx, -1) < 0) { + printf("error finishing mtd write of %s\n", partition); + mtd_write_close(ctx); + return -1; + } + + if (mtd_write_close(ctx)) { + printf("error closing mtd write of %s\n", partition); + return -1; + } + break; + } + + case EMMC: { + size_t start = 0; + bool success = false; + int fd = ota_open(partition, O_RDWR | O_SYNC); + if (fd < 0) { + printf("failed to open %s: %s\n", partition, strerror(errno)); + return -1; + } + + for (size_t attempt = 0; attempt < 2; ++attempt) { + if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1) { + printf("failed seek on %s: %s\n", partition, strerror(errno)); + return -1; + } + while (start < len) { + size_t to_write = len - start; + if (to_write > 1<<20) to_write = 1<<20; + + ssize_t written = TEMP_FAILURE_RETRY(ota_write(fd, data+start, to_write)); + if (written == -1) { + printf("failed write writing to %s: %s\n", partition, strerror(errno)); + return -1; + } + start += written; + } + if (ota_fsync(fd) != 0) { + printf("failed to sync to %s (%s)\n", partition, strerror(errno)); + return -1; + } + if (ota_close(fd) != 0) { + printf("failed to close %s (%s)\n", partition, strerror(errno)); + return -1; + } + fd = ota_open(partition, O_RDONLY); + if (fd < 0) { + printf("failed to reopen %s for verify (%s)\n", partition, strerror(errno)); + return -1; + } + + // Drop caches so our subsequent verification read + // won't just be reading the cache. + sync(); + int dc = ota_open("/proc/sys/vm/drop_caches", O_WRONLY); + if (TEMP_FAILURE_RETRY(ota_write(dc, "3\n", 2)) == -1) { + printf("write to /proc/sys/vm/drop_caches failed: %s\n", strerror(errno)); + } else { + printf(" caches dropped\n"); + } + ota_close(dc); + sleep(1); + + // verify + if (TEMP_FAILURE_RETRY(lseek(fd, 0, SEEK_SET)) == -1) { + printf("failed to seek back to beginning of %s: %s\n", + partition, strerror(errno)); + return -1; + } + unsigned char buffer[4096]; + start = len; + for (size_t p = 0; p < len; p += sizeof(buffer)) { + size_t to_read = len - p; + if (to_read > sizeof(buffer)) { + to_read = sizeof(buffer); + } + + size_t so_far = 0; + while (so_far < to_read) { + ssize_t read_count = + TEMP_FAILURE_RETRY(ota_read(fd, buffer+so_far, to_read-so_far)); + if (read_count == -1) { + printf("verify read error %s at %zu: %s\n", + partition, p, strerror(errno)); + return -1; + } + if (static_cast<size_t>(read_count) < to_read) { + printf("short verify read %s at %zu: %zd %zu %s\n", + partition, p, read_count, to_read, strerror(errno)); + } + so_far += read_count; + } + + if (memcmp(buffer, data+p, to_read) != 0) { + printf("verification failed starting at %zu\n", p); + start = p; + break; + } + } + + if (start == len) { + printf("verification read succeeded (attempt %zu)\n", attempt+1); + success = true; + break; + } + } + + if (!success) { + printf("failed to verify after all attempts\n"); + return -1; + } + + if (ota_close(fd) != 0) { + printf("error closing %s (%s)\n", partition, strerror(errno)); + return -1; + } + sync(); + break; + } + } + + return 0; +} + + +// Take a string 'str' of 40 hex digits and parse it into the 20 +// byte array 'digest'. 'str' may contain only the digest or be of +// the form "<digest>:<anything>". Return 0 on success, -1 on any +// error. +int ParseSha1(const char* str, uint8_t* digest) { + const char* ps = str; + uint8_t* pd = digest; + for (int i = 0; i < SHA_DIGEST_LENGTH * 2; ++i, ++ps) { + int digit; + if (*ps >= '0' && *ps <= '9') { + digit = *ps - '0'; + } else if (*ps >= 'a' && *ps <= 'f') { + digit = *ps - 'a' + 10; + } else if (*ps >= 'A' && *ps <= 'F') { + digit = *ps - 'A' + 10; + } else { + return -1; + } + if (i % 2 == 0) { + *pd = digit << 4; + } else { + *pd |= digit; + ++pd; + } + } + if (*ps != '\0') return -1; + return 0; +} + +// Search an array of sha1 strings for one matching the given sha1. +// Return the index of the match on success, or -1 if no match is +// found. +int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str, + int num_patches) { + uint8_t patch_sha1[SHA_DIGEST_LENGTH]; + for (int i = 0; i < num_patches; ++i) { + if (ParseSha1(patch_sha1_str[i], patch_sha1) == 0 && + memcmp(patch_sha1, sha1, SHA_DIGEST_LENGTH) == 0) { + return i; + } + } + return -1; +} + +// Returns 0 if the contents of the file (argv[2]) or the cached file +// match any of the sha1's on the command line (argv[3:]). Returns +// nonzero otherwise. +int applypatch_check(const char* filename, int num_patches, + char** const patch_sha1_str) { + FileContents file; + + // It's okay to specify no sha1s; the check will pass if the + // LoadFileContents is successful. (Useful for reading + // partitions, where the filename encodes the sha1s; no need to + // check them twice.) + if (LoadFileContents(filename, &file) != 0 || + (num_patches > 0 && + FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0)) { + printf("file \"%s\" doesn't have any of expected " + "sha1 sums; checking cache\n", filename); + + // If the source file is missing or corrupted, it might be because + // we were killed in the middle of patching it. A copy of it + // should have been made in CACHE_TEMP_SOURCE. If that file + // exists and matches the sha1 we're looking for, the check still + // passes. + + if (LoadFileContents(CACHE_TEMP_SOURCE, &file) != 0) { + printf("failed to load cache file\n"); + return 1; + } + + if (FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0) { + printf("cache bits don't match any sha1 for \"%s\"\n", filename); + return 1; + } + } + return 0; +} + +int ShowLicenses() { + ShowBSDiffLicense(); + return 0; +} + +ssize_t FileSink(const unsigned char* data, ssize_t len, void* token) { + int fd = *static_cast<int*>(token); + ssize_t done = 0; + ssize_t wrote; + while (done < len) { + wrote = TEMP_FAILURE_RETRY(ota_write(fd, data+done, len-done)); + if (wrote == -1) { + printf("error writing %zd bytes: %s\n", (len-done), strerror(errno)); + return done; + } + done += wrote; + } + return done; +} + +ssize_t MemorySink(const unsigned char* data, ssize_t len, void* token) { + std::string* s = static_cast<std::string*>(token); + s->append(reinterpret_cast<const char*>(data), len); + return len; +} + +// Return the amount of free space (in bytes) on the filesystem +// containing filename. filename must exist. Return -1 on error. +size_t FreeSpaceForFile(const char* filename) { + struct statfs sf; + if (statfs(filename, &sf) != 0) { + printf("failed to statfs %s: %s\n", filename, strerror(errno)); + return -1; + } + return sf.f_bsize * sf.f_bavail; +} + +int CacheSizeCheck(size_t bytes) { + if (MakeFreeSpaceOnCache(bytes) < 0) { + printf("unable to make %ld bytes available on /cache\n", (long)bytes); + return 1; + } else { + return 0; + } +} + +// This function applies binary patches to files in a way that is safe +// (the original file is not touched until we have the desired +// replacement for it) and idempotent (it's okay to run this program +// multiple times). +// +// - if the sha1 hash of <target_filename> is <target_sha1_string>, +// does nothing and exits successfully. +// +// - otherwise, if the sha1 hash of <source_filename> is one of the +// entries in <patch_sha1_str>, the corresponding patch from +// <patch_data> (which must be a VAL_BLOB) is applied to produce a +// new file (the type of patch is automatically detected from the +// blob data). If that new file has sha1 hash <target_sha1_str>, +// moves it to replace <target_filename>, and exits successfully. +// Note that if <source_filename> and <target_filename> are not the +// same, <source_filename> is NOT deleted on success. +// <target_filename> may be the string "-" to mean "the same as +// source_filename". +// +// - otherwise, or if any error is encountered, exits with non-zero +// status. +// +// <source_filename> may refer to a partition to read the source data. +// See the comments for the LoadPartitionContents() function above +// for the format of such a filename. + +int applypatch(const char* source_filename, + const char* target_filename, + const char* target_sha1_str, + size_t target_size, + int num_patches, + char** const patch_sha1_str, + Value** patch_data, + Value* bonus_data) { + printf("patch %s: ", source_filename); + + if (target_filename[0] == '-' && target_filename[1] == '\0') { + target_filename = source_filename; + } + + uint8_t target_sha1[SHA_DIGEST_LENGTH]; + if (ParseSha1(target_sha1_str, target_sha1) != 0) { + printf("failed to parse tgt-sha1 \"%s\"\n", target_sha1_str); + return 1; + } + + FileContents copy_file; + FileContents source_file; + const Value* source_patch_value = NULL; + const Value* copy_patch_value = NULL; + + // We try to load the target file into the source_file object. + if (LoadFileContents(target_filename, &source_file) == 0) { + if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_LENGTH) == 0) { + // The early-exit case: the patch was already applied, this file + // has the desired hash, nothing for us to do. + printf("already %s\n", short_sha1(target_sha1).c_str()); + return 0; + } + } + + if (source_file.data.empty() || + (target_filename != source_filename && + strcmp(target_filename, source_filename) != 0)) { + // Need to load the source file: either we failed to load the + // target file, or we did but it's different from the source file. + source_file.data.clear(); + LoadFileContents(source_filename, &source_file); + } + + if (!source_file.data.empty()) { + int to_use = FindMatchingPatch(source_file.sha1, patch_sha1_str, num_patches); + if (to_use >= 0) { + source_patch_value = patch_data[to_use]; + } + } + + if (source_patch_value == NULL) { + source_file.data.clear(); + printf("source file is bad; trying copy\n"); + + if (LoadFileContents(CACHE_TEMP_SOURCE, ©_file) < 0) { + // fail. + printf("failed to read copy file\n"); + return 1; + } + + int to_use = FindMatchingPatch(copy_file.sha1, patch_sha1_str, num_patches); + if (to_use >= 0) { + copy_patch_value = patch_data[to_use]; + } + + if (copy_patch_value == NULL) { + // fail. + printf("copy file doesn't match source SHA-1s either\n"); + return 1; + } + } + + return GenerateTarget(&source_file, source_patch_value, + ©_file, copy_patch_value, + source_filename, target_filename, + target_sha1, target_size, bonus_data); +} + +/* + * This function flashes a given image to the target partition. It verifies + * the target cheksum first, and will return if target has the desired hash. + * It checks the checksum of the given source image before flashing, and + * verifies the target partition afterwards. The function is idempotent. + * Returns zero on success. + */ +int applypatch_flash(const char* source_filename, const char* target_filename, + const char* target_sha1_str, size_t target_size) { + printf("flash %s: ", target_filename); + + uint8_t target_sha1[SHA_DIGEST_LENGTH]; + if (ParseSha1(target_sha1_str, target_sha1) != 0) { + printf("failed to parse tgt-sha1 \"%s\"\n", target_sha1_str); + return 1; + } + + FileContents source_file; + std::string target_str(target_filename); + + std::vector<std::string> pieces = android::base::Split(target_str, ":"); + if (pieces.size() != 2 || (pieces[0] != "MTD" && pieces[0] != "EMMC")) { + printf("invalid target name \"%s\"", target_filename); + return 1; + } + + // Load the target into the source_file object to see if already applied. + pieces.push_back(std::to_string(target_size)); + pieces.push_back(target_sha1_str); + std::string fullname = android::base::Join(pieces, ':'); + if (LoadPartitionContents(fullname.c_str(), &source_file) == 0 && + memcmp(source_file.sha1, target_sha1, SHA_DIGEST_LENGTH) == 0) { + // The early-exit case: the image was already applied, this partition + // has the desired hash, nothing for us to do. + printf("already %s\n", short_sha1(target_sha1).c_str()); + return 0; + } + + if (LoadFileContents(source_filename, &source_file) == 0) { + if (memcmp(source_file.sha1, target_sha1, SHA_DIGEST_LENGTH) != 0) { + // The source doesn't have desired checksum. + printf("source \"%s\" doesn't have expected sha1 sum\n", source_filename); + printf("expected: %s, found: %s\n", short_sha1(target_sha1).c_str(), + short_sha1(source_file.sha1).c_str()); + return 1; + } + } + + if (WriteToPartition(source_file.data.data(), target_size, target_filename) != 0) { + printf("write of copied data to %s failed\n", target_filename); + return 1; + } + return 0; +} + +static int GenerateTarget(FileContents* source_file, + const Value* source_patch_value, + FileContents* copy_file, + const Value* copy_patch_value, + const char* source_filename, + const char* target_filename, + const uint8_t target_sha1[SHA_DIGEST_LENGTH], + size_t target_size, + const Value* bonus_data) { + int retry = 1; + SHA_CTX ctx; + std::string memory_sink_str; + FileContents* source_to_use; + int made_copy = 0; + + bool target_is_partition = (strncmp(target_filename, "MTD:", 4) == 0 || + strncmp(target_filename, "EMMC:", 5) == 0); + const std::string tmp_target_filename = std::string(target_filename) + ".patch"; + + // assume that target_filename (eg "/system/app/Foo.apk") is located + // on the same filesystem as its top-level directory ("/system"). + // We need something that exists for calling statfs(). + std::string target_fs = target_filename; + auto slash_pos = target_fs.find('/', 1); + if (slash_pos != std::string::npos) { + target_fs.resize(slash_pos); + } + + const Value* patch; + if (source_patch_value != NULL) { + source_to_use = source_file; + patch = source_patch_value; + } else { + source_to_use = copy_file; + patch = copy_patch_value; + } + if (patch->type != VAL_BLOB) { + printf("patch is not a blob\n"); + return 1; + } + char* header = patch->data; + ssize_t header_bytes_read = patch->size; + bool use_bsdiff = false; + if (header_bytes_read >= 8 && memcmp(header, "BSDIFF40", 8) == 0) { + use_bsdiff = true; + } else if (header_bytes_read >= 8 && memcmp(header, "IMGDIFF2", 8) == 0) { + use_bsdiff = false; + } else { + printf("Unknown patch file format\n"); + return 1; + } + + do { + // Is there enough room in the target filesystem to hold the patched + // file? + + if (target_is_partition) { + // If the target is a partition, we're actually going to + // write the output to /tmp and then copy it to the + // partition. statfs() always returns 0 blocks free for + // /tmp, so instead we'll just assume that /tmp has enough + // space to hold the file. + + // We still write the original source to cache, in case + // the partition write is interrupted. + if (MakeFreeSpaceOnCache(source_file->data.size()) < 0) { + printf("not enough free space on /cache\n"); + return 1; + } + if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) { + printf("failed to back up source file\n"); + return 1; + } + made_copy = 1; + retry = 0; + } else { + int enough_space = 0; + if (retry > 0) { + size_t free_space = FreeSpaceForFile(target_fs.c_str()); + enough_space = + (free_space > (256 << 10)) && // 256k (two-block) minimum + (free_space > (target_size * 3 / 2)); // 50% margin of error + if (!enough_space) { + printf("target %zu bytes; free space %zu bytes; retry %d; enough %d\n", + target_size, free_space, retry, enough_space); + } + } + + if (!enough_space) { + retry = 0; + } + + if (!enough_space && source_patch_value != NULL) { + // Using the original source, but not enough free space. First + // copy the source file to cache, then delete it from the original + // location. + + if (strncmp(source_filename, "MTD:", 4) == 0 || + strncmp(source_filename, "EMMC:", 5) == 0) { + // It's impossible to free space on the target filesystem by + // deleting the source if the source is a partition. If + // we're ever in a state where we need to do this, fail. + printf("not enough free space for target but source is partition\n"); + return 1; + } + + if (MakeFreeSpaceOnCache(source_file->data.size()) < 0) { + printf("not enough free space on /cache\n"); + return 1; + } + + if (SaveFileContents(CACHE_TEMP_SOURCE, source_file) < 0) { + printf("failed to back up source file\n"); + return 1; + } + made_copy = 1; + unlink(source_filename); + + size_t free_space = FreeSpaceForFile(target_fs.c_str()); + printf("(now %zu bytes free for target) ", free_space); + } + } + + + SinkFn sink = NULL; + void* token = NULL; + int output_fd = -1; + if (target_is_partition) { + // We store the decoded output in memory. + sink = MemorySink; + token = &memory_sink_str; + } else { + // We write the decoded output to "<tgt-file>.patch". + output_fd = ota_open(tmp_target_filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, + S_IRUSR | S_IWUSR); + if (output_fd < 0) { + printf("failed to open output file %s: %s\n", tmp_target_filename.c_str(), + strerror(errno)); + return 1; + } + sink = FileSink; + token = &output_fd; + } + + + SHA1_Init(&ctx); + + int result; + if (use_bsdiff) { + result = ApplyBSDiffPatch(source_to_use->data.data(), source_to_use->data.size(), + patch, 0, sink, token, &ctx); + } else { + result = ApplyImagePatch(source_to_use->data.data(), source_to_use->data.size(), + patch, sink, token, &ctx, bonus_data); + } + + if (!target_is_partition) { + if (ota_fsync(output_fd) != 0) { + printf("failed to fsync file \"%s\" (%s)\n", tmp_target_filename.c_str(), + strerror(errno)); + result = 1; + } + if (ota_close(output_fd) != 0) { + printf("failed to close file \"%s\" (%s)\n", tmp_target_filename.c_str(), + strerror(errno)); + result = 1; + } + } + + if (result != 0) { + if (retry == 0) { + printf("applying patch failed\n"); + return result != 0; + } else { + printf("applying patch failed; retrying\n"); + } + if (!target_is_partition) { + unlink(tmp_target_filename.c_str()); + } + } else { + // succeeded; no need to retry + break; + } + } while (retry-- > 0); + + uint8_t current_target_sha1[SHA_DIGEST_LENGTH]; + SHA1_Final(current_target_sha1, &ctx); + if (memcmp(current_target_sha1, target_sha1, SHA_DIGEST_LENGTH) != 0) { + printf("patch did not produce expected sha1\n"); + return 1; + } else { + printf("now %s\n", short_sha1(target_sha1).c_str()); + } + + if (target_is_partition) { + // Copy the temp file to the partition. + if (WriteToPartition(reinterpret_cast<const unsigned char*>(memory_sink_str.c_str()), + memory_sink_str.size(), target_filename) != 0) { + printf("write of patched data to %s failed\n", target_filename); + return 1; + } + } else { + // Give the .patch file the same owner, group, and mode of the + // original source file. + if (chmod(tmp_target_filename.c_str(), source_to_use->st.st_mode) != 0) { + printf("chmod of \"%s\" failed: %s\n", tmp_target_filename.c_str(), strerror(errno)); + return 1; + } + if (chown(tmp_target_filename.c_str(), source_to_use->st.st_uid, source_to_use->st.st_gid) != 0) { + printf("chown of \"%s\" failed: %s\n", tmp_target_filename.c_str(), strerror(errno)); + return 1; + } + + // Finally, rename the .patch file to replace the target file. + if (rename(tmp_target_filename.c_str(), target_filename) != 0) { + printf("rename of .patch to \"%s\" failed: %s\n", target_filename, strerror(errno)); + return 1; + } + } + + // If this run of applypatch created the copy, and we're here, we + // can delete it. + if (made_copy) { + unlink(CACHE_TEMP_SOURCE); + } + + // Success! + return 0; +} diff --git a/applypatch/applypatch.h b/applypatch/applypatch.h index edec84812..f392c5534 100644 --- a/applypatch/applypatch.h +++ b/applypatch/applypatch.h @@ -18,20 +18,17 @@ #define _APPLYPATCH_H #include <sys/stat.h> -#include "mincrypt/sha.h" -#include "edify/expr.h" -typedef struct _Patch { - uint8_t sha1[SHA_DIGEST_SIZE]; - const char* patch_filename; -} Patch; +#include <vector> + +#include "openssl/sha.h" +#include "edify/expr.h" -typedef struct _FileContents { - uint8_t sha1[SHA_DIGEST_SIZE]; - unsigned char* data; - ssize_t size; +struct FileContents { + uint8_t sha1[SHA_DIGEST_LENGTH]; + std::vector<unsigned char> data; struct stat st; -} FileContents; +}; // When there isn't enough room on the target filesystem to hold the // patched version of the file, we copy the original here and delete @@ -48,6 +45,8 @@ size_t FreeSpaceForFile(const char* filename); int CacheSizeCheck(size_t bytes); int ParseSha1(const char* str, uint8_t* digest); +int applypatch_flash(const char* source_filename, const char* target_filename, + const char* target_sha1_str, size_t target_size); int applypatch(const char* source_filename, const char* target_filename, const char* target_sha1_str, @@ -66,22 +65,22 @@ void FreeFileContents(FileContents* file); int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str, int num_patches); -// bsdiff.c +// bsdiff.cpp void ShowBSDiffLicense(); int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, const Value* patch, ssize_t patch_offset, SinkFn sink, void* token, SHA_CTX* ctx); int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, const Value* patch, ssize_t patch_offset, - unsigned char** new_data, ssize_t* new_size); + std::vector<unsigned char>* new_data); -// imgpatch.c +// imgpatch.cpp int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value* patch, SinkFn sink, void* token, SHA_CTX* ctx, const Value* bonus_data); -// freecache.c +// freecache.cpp int MakeFreeSpaceOnCache(size_t bytes_needed); #endif diff --git a/applypatch/bsdiff.c b/applypatch/bsdiff.c deleted file mode 100644 index b6d342b7a..000000000 --- a/applypatch/bsdiff.c +++ /dev/null @@ -1,410 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * Most of this code comes from bsdiff.c from the bsdiff-4.3 - * distribution, which is: - */ - -/*- - * Copyright 2003-2005 Colin Percival - * All rights reserved - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted providing that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/types.h> - -#include <bzlib.h> -#include <err.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#define MIN(x,y) (((x)<(y)) ? (x) : (y)) - -static void split(off_t *I,off_t *V,off_t start,off_t len,off_t h) -{ - off_t i,j,k,x,tmp,jj,kk; - - if(len<16) { - for(k=start;k<start+len;k+=j) { - j=1;x=V[I[k]+h]; - for(i=1;k+i<start+len;i++) { - if(V[I[k+i]+h]<x) { - x=V[I[k+i]+h]; - j=0; - }; - if(V[I[k+i]+h]==x) { - tmp=I[k+j];I[k+j]=I[k+i];I[k+i]=tmp; - j++; - }; - }; - for(i=0;i<j;i++) V[I[k+i]]=k+j-1; - if(j==1) I[k]=-1; - }; - return; - }; - - x=V[I[start+len/2]+h]; - jj=0;kk=0; - for(i=start;i<start+len;i++) { - if(V[I[i]+h]<x) jj++; - if(V[I[i]+h]==x) kk++; - }; - jj+=start;kk+=jj; - - i=start;j=0;k=0; - while(i<jj) { - if(V[I[i]+h]<x) { - i++; - } else if(V[I[i]+h]==x) { - tmp=I[i];I[i]=I[jj+j];I[jj+j]=tmp; - j++; - } else { - tmp=I[i];I[i]=I[kk+k];I[kk+k]=tmp; - k++; - }; - }; - - while(jj+j<kk) { - if(V[I[jj+j]+h]==x) { - j++; - } else { - tmp=I[jj+j];I[jj+j]=I[kk+k];I[kk+k]=tmp; - k++; - }; - }; - - if(jj>start) split(I,V,start,jj-start,h); - - for(i=0;i<kk-jj;i++) V[I[jj+i]]=kk-1; - if(jj==kk-1) I[jj]=-1; - - if(start+len>kk) split(I,V,kk,start+len-kk,h); -} - -static void qsufsort(off_t *I,off_t *V,u_char *old,off_t oldsize) -{ - off_t buckets[256]; - off_t i,h,len; - - for(i=0;i<256;i++) buckets[i]=0; - for(i=0;i<oldsize;i++) buckets[old[i]]++; - for(i=1;i<256;i++) buckets[i]+=buckets[i-1]; - for(i=255;i>0;i--) buckets[i]=buckets[i-1]; - buckets[0]=0; - - for(i=0;i<oldsize;i++) I[++buckets[old[i]]]=i; - I[0]=oldsize; - for(i=0;i<oldsize;i++) V[i]=buckets[old[i]]; - V[oldsize]=0; - for(i=1;i<256;i++) if(buckets[i]==buckets[i-1]+1) I[buckets[i]]=-1; - I[0]=-1; - - for(h=1;I[0]!=-(oldsize+1);h+=h) { - len=0; - for(i=0;i<oldsize+1;) { - if(I[i]<0) { - len-=I[i]; - i-=I[i]; - } else { - if(len) I[i-len]=-len; - len=V[I[i]]+1-i; - split(I,V,i,len,h); - i+=len; - len=0; - }; - }; - if(len) I[i-len]=-len; - }; - - for(i=0;i<oldsize+1;i++) I[V[i]]=i; -} - -static off_t matchlen(u_char *old,off_t oldsize,u_char *new,off_t newsize) -{ - off_t i; - - for(i=0;(i<oldsize)&&(i<newsize);i++) - if(old[i]!=new[i]) break; - - return i; -} - -static off_t search(off_t *I,u_char *old,off_t oldsize, - u_char *new,off_t newsize,off_t st,off_t en,off_t *pos) -{ - off_t x,y; - - if(en-st<2) { - x=matchlen(old+I[st],oldsize-I[st],new,newsize); - y=matchlen(old+I[en],oldsize-I[en],new,newsize); - - if(x>y) { - *pos=I[st]; - return x; - } else { - *pos=I[en]; - return y; - } - }; - - x=st+(en-st)/2; - if(memcmp(old+I[x],new,MIN(oldsize-I[x],newsize))<0) { - return search(I,old,oldsize,new,newsize,x,en,pos); - } else { - return search(I,old,oldsize,new,newsize,st,x,pos); - }; -} - -static void offtout(off_t x,u_char *buf) -{ - off_t y; - - if(x<0) y=-x; else y=x; - - buf[0]=y%256;y-=buf[0]; - y=y/256;buf[1]=y%256;y-=buf[1]; - y=y/256;buf[2]=y%256;y-=buf[2]; - y=y/256;buf[3]=y%256;y-=buf[3]; - y=y/256;buf[4]=y%256;y-=buf[4]; - y=y/256;buf[5]=y%256;y-=buf[5]; - y=y/256;buf[6]=y%256;y-=buf[6]; - y=y/256;buf[7]=y%256; - - if(x<0) buf[7]|=0x80; -} - -// This is main() from bsdiff.c, with the following changes: -// -// - old, oldsize, new, newsize are arguments; we don't load this -// data from files. old and new are owned by the caller; we -// don't free them at the end. -// -// - the "I" block of memory is owned by the caller, who passes a -// pointer to *I, which can be NULL. This way if we call -// bsdiff() multiple times with the same 'old' data, we only do -// the qsufsort() step the first time. -// -int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* new, off_t newsize, - const char* patch_filename) -{ - int fd; - off_t *I; - off_t scan,pos,len; - off_t lastscan,lastpos,lastoffset; - off_t oldscore,scsc; - off_t s,Sf,lenf,Sb,lenb; - off_t overlap,Ss,lens; - off_t i; - off_t dblen,eblen; - u_char *db,*eb; - u_char buf[8]; - u_char header[32]; - FILE * pf; - BZFILE * pfbz2; - int bz2err; - - if (*IP == NULL) { - off_t* V; - *IP = malloc((oldsize+1) * sizeof(off_t)); - V = malloc((oldsize+1) * sizeof(off_t)); - qsufsort(*IP, V, old, oldsize); - free(V); - } - I = *IP; - - if(((db=malloc(newsize+1))==NULL) || - ((eb=malloc(newsize+1))==NULL)) err(1,NULL); - dblen=0; - eblen=0; - - /* Create the patch file */ - if ((pf = fopen(patch_filename, "w")) == NULL) - err(1, "%s", patch_filename); - - /* Header is - 0 8 "BSDIFF40" - 8 8 length of bzip2ed ctrl block - 16 8 length of bzip2ed diff block - 24 8 length of new file */ - /* File is - 0 32 Header - 32 ?? Bzip2ed ctrl block - ?? ?? Bzip2ed diff block - ?? ?? Bzip2ed extra block */ - memcpy(header,"BSDIFF40",8); - offtout(0, header + 8); - offtout(0, header + 16); - offtout(newsize, header + 24); - if (fwrite(header, 32, 1, pf) != 1) - err(1, "fwrite(%s)", patch_filename); - - /* Compute the differences, writing ctrl as we go */ - if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) - errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); - scan=0;len=0; - lastscan=0;lastpos=0;lastoffset=0; - while(scan<newsize) { - oldscore=0; - - for(scsc=scan+=len;scan<newsize;scan++) { - len=search(I,old,oldsize,new+scan,newsize-scan, - 0,oldsize,&pos); - - for(;scsc<scan+len;scsc++) - if((scsc+lastoffset<oldsize) && - (old[scsc+lastoffset] == new[scsc])) - oldscore++; - - if(((len==oldscore) && (len!=0)) || - (len>oldscore+8)) break; - - if((scan+lastoffset<oldsize) && - (old[scan+lastoffset] == new[scan])) - oldscore--; - }; - - if((len!=oldscore) || (scan==newsize)) { - s=0;Sf=0;lenf=0; - for(i=0;(lastscan+i<scan)&&(lastpos+i<oldsize);) { - if(old[lastpos+i]==new[lastscan+i]) s++; - i++; - if(s*2-i>Sf*2-lenf) { Sf=s; lenf=i; }; - }; - - lenb=0; - if(scan<newsize) { - s=0;Sb=0; - for(i=1;(scan>=lastscan+i)&&(pos>=i);i++) { - if(old[pos-i]==new[scan-i]) s++; - if(s*2-i>Sb*2-lenb) { Sb=s; lenb=i; }; - }; - }; - - if(lastscan+lenf>scan-lenb) { - overlap=(lastscan+lenf)-(scan-lenb); - s=0;Ss=0;lens=0; - for(i=0;i<overlap;i++) { - if(new[lastscan+lenf-overlap+i]== - old[lastpos+lenf-overlap+i]) s++; - if(new[scan-lenb+i]== - old[pos-lenb+i]) s--; - if(s>Ss) { Ss=s; lens=i+1; }; - }; - - lenf+=lens-overlap; - lenb-=lens; - }; - - for(i=0;i<lenf;i++) - db[dblen+i]=new[lastscan+i]-old[lastpos+i]; - for(i=0;i<(scan-lenb)-(lastscan+lenf);i++) - eb[eblen+i]=new[lastscan+lenf+i]; - - dblen+=lenf; - eblen+=(scan-lenb)-(lastscan+lenf); - - offtout(lenf,buf); - BZ2_bzWrite(&bz2err, pfbz2, buf, 8); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); - - offtout((scan-lenb)-(lastscan+lenf),buf); - BZ2_bzWrite(&bz2err, pfbz2, buf, 8); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); - - offtout((pos-lenb)-(lastpos+lenf),buf); - BZ2_bzWrite(&bz2err, pfbz2, buf, 8); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); - - lastscan=scan-lenb; - lastpos=pos-lenb; - lastoffset=pos-scan; - }; - }; - BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); - - /* Compute size of compressed ctrl data */ - if ((len = ftello(pf)) == -1) - err(1, "ftello"); - offtout(len-32, header + 8); - - /* Write compressed diff data */ - if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) - errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); - BZ2_bzWrite(&bz2err, pfbz2, db, dblen); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); - BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); - - /* Compute size of compressed diff data */ - if ((newsize = ftello(pf)) == -1) - err(1, "ftello"); - offtout(newsize - len, header + 16); - - /* Write compressed extra data */ - if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) - errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); - BZ2_bzWrite(&bz2err, pfbz2, eb, eblen); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); - BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); - if (bz2err != BZ_OK) - errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); - - /* Seek to the beginning, write the header, and close the file */ - if (fseeko(pf, 0, SEEK_SET)) - err(1, "fseeko"); - if (fwrite(header, 32, 1, pf) != 1) - err(1, "fwrite(%s)", patch_filename); - if (fclose(pf)) - err(1, "fclose"); - - /* Free the memory we used */ - free(db); - free(eb); - - return 0; -} diff --git a/applypatch/bsdiff.cpp b/applypatch/bsdiff.cpp new file mode 100644 index 000000000..55dbe5cf1 --- /dev/null +++ b/applypatch/bsdiff.cpp @@ -0,0 +1,410 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Most of this code comes from bsdiff.c from the bsdiff-4.3 + * distribution, which is: + */ + +/*- + * Copyright 2003-2005 Colin Percival + * All rights reserved + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted providing that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/types.h> + +#include <bzlib.h> +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define MIN(x,y) (((x)<(y)) ? (x) : (y)) + +static void split(off_t *I,off_t *V,off_t start,off_t len,off_t h) +{ + off_t i,j,k,x,tmp,jj,kk; + + if(len<16) { + for(k=start;k<start+len;k+=j) { + j=1;x=V[I[k]+h]; + for(i=1;k+i<start+len;i++) { + if(V[I[k+i]+h]<x) { + x=V[I[k+i]+h]; + j=0; + }; + if(V[I[k+i]+h]==x) { + tmp=I[k+j];I[k+j]=I[k+i];I[k+i]=tmp; + j++; + }; + }; + for(i=0;i<j;i++) V[I[k+i]]=k+j-1; + if(j==1) I[k]=-1; + }; + return; + }; + + x=V[I[start+len/2]+h]; + jj=0;kk=0; + for(i=start;i<start+len;i++) { + if(V[I[i]+h]<x) jj++; + if(V[I[i]+h]==x) kk++; + }; + jj+=start;kk+=jj; + + i=start;j=0;k=0; + while(i<jj) { + if(V[I[i]+h]<x) { + i++; + } else if(V[I[i]+h]==x) { + tmp=I[i];I[i]=I[jj+j];I[jj+j]=tmp; + j++; + } else { + tmp=I[i];I[i]=I[kk+k];I[kk+k]=tmp; + k++; + }; + }; + + while(jj+j<kk) { + if(V[I[jj+j]+h]==x) { + j++; + } else { + tmp=I[jj+j];I[jj+j]=I[kk+k];I[kk+k]=tmp; + k++; + }; + }; + + if(jj>start) split(I,V,start,jj-start,h); + + for(i=0;i<kk-jj;i++) V[I[jj+i]]=kk-1; + if(jj==kk-1) I[jj]=-1; + + if(start+len>kk) split(I,V,kk,start+len-kk,h); +} + +static void qsufsort(off_t *I,off_t *V,u_char *old,off_t oldsize) +{ + off_t buckets[256]; + off_t i,h,len; + + for(i=0;i<256;i++) buckets[i]=0; + for(i=0;i<oldsize;i++) buckets[old[i]]++; + for(i=1;i<256;i++) buckets[i]+=buckets[i-1]; + for(i=255;i>0;i--) buckets[i]=buckets[i-1]; + buckets[0]=0; + + for(i=0;i<oldsize;i++) I[++buckets[old[i]]]=i; + I[0]=oldsize; + for(i=0;i<oldsize;i++) V[i]=buckets[old[i]]; + V[oldsize]=0; + for(i=1;i<256;i++) if(buckets[i]==buckets[i-1]+1) I[buckets[i]]=-1; + I[0]=-1; + + for(h=1;I[0]!=-(oldsize+1);h+=h) { + len=0; + for(i=0;i<oldsize+1;) { + if(I[i]<0) { + len-=I[i]; + i-=I[i]; + } else { + if(len) I[i-len]=-len; + len=V[I[i]]+1-i; + split(I,V,i,len,h); + i+=len; + len=0; + }; + }; + if(len) I[i-len]=-len; + }; + + for(i=0;i<oldsize+1;i++) I[V[i]]=i; +} + +static off_t matchlen(u_char *olddata,off_t oldsize,u_char *newdata,off_t newsize) +{ + off_t i; + + for(i=0;(i<oldsize)&&(i<newsize);i++) + if(olddata[i]!=newdata[i]) break; + + return i; +} + +static off_t search(off_t *I,u_char *old,off_t oldsize, + u_char *newdata,off_t newsize,off_t st,off_t en,off_t *pos) +{ + off_t x,y; + + if(en-st<2) { + x=matchlen(old+I[st],oldsize-I[st],newdata,newsize); + y=matchlen(old+I[en],oldsize-I[en],newdata,newsize); + + if(x>y) { + *pos=I[st]; + return x; + } else { + *pos=I[en]; + return y; + } + }; + + x=st+(en-st)/2; + if(memcmp(old+I[x],newdata,MIN(oldsize-I[x],newsize))<0) { + return search(I,old,oldsize,newdata,newsize,x,en,pos); + } else { + return search(I,old,oldsize,newdata,newsize,st,x,pos); + }; +} + +static void offtout(off_t x,u_char *buf) +{ + off_t y; + + if(x<0) y=-x; else y=x; + + buf[0]=y%256;y-=buf[0]; + y=y/256;buf[1]=y%256;y-=buf[1]; + y=y/256;buf[2]=y%256;y-=buf[2]; + y=y/256;buf[3]=y%256;y-=buf[3]; + y=y/256;buf[4]=y%256;y-=buf[4]; + y=y/256;buf[5]=y%256;y-=buf[5]; + y=y/256;buf[6]=y%256;y-=buf[6]; + y=y/256;buf[7]=y%256; + + if(x<0) buf[7]|=0x80; +} + +// This is main() from bsdiff.c, with the following changes: +// +// - old, oldsize, newdata, newsize are arguments; we don't load this +// data from files. old and newdata are owned by the caller; we +// don't free them at the end. +// +// - the "I" block of memory is owned by the caller, who passes a +// pointer to *I, which can be NULL. This way if we call +// bsdiff() multiple times with the same 'old' data, we only do +// the qsufsort() step the first time. +// +int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* newdata, off_t newsize, + const char* patch_filename) +{ + int fd; + off_t *I; + off_t scan,pos,len; + off_t lastscan,lastpos,lastoffset; + off_t oldscore,scsc; + off_t s,Sf,lenf,Sb,lenb; + off_t overlap,Ss,lens; + off_t i; + off_t dblen,eblen; + u_char *db,*eb; + u_char buf[8]; + u_char header[32]; + FILE * pf; + BZFILE * pfbz2; + int bz2err; + + if (*IP == NULL) { + off_t* V; + *IP = reinterpret_cast<off_t*>(malloc((oldsize+1) * sizeof(off_t))); + V = reinterpret_cast<off_t*>(malloc((oldsize+1) * sizeof(off_t))); + qsufsort(*IP, V, old, oldsize); + free(V); + } + I = *IP; + + if(((db=reinterpret_cast<u_char*>(malloc(newsize+1)))==NULL) || + ((eb=reinterpret_cast<u_char*>(malloc(newsize+1)))==NULL)) err(1,NULL); + dblen=0; + eblen=0; + + /* Create the patch file */ + if ((pf = fopen(patch_filename, "w")) == NULL) + err(1, "%s", patch_filename); + + /* Header is + 0 8 "BSDIFF40" + 8 8 length of bzip2ed ctrl block + 16 8 length of bzip2ed diff block + 24 8 length of new file */ + /* File is + 0 32 Header + 32 ?? Bzip2ed ctrl block + ?? ?? Bzip2ed diff block + ?? ?? Bzip2ed extra block */ + memcpy(header,"BSDIFF40",8); + offtout(0, header + 8); + offtout(0, header + 16); + offtout(newsize, header + 24); + if (fwrite(header, 32, 1, pf) != 1) + err(1, "fwrite(%s)", patch_filename); + + /* Compute the differences, writing ctrl as we go */ + if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) + errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); + scan=0;len=0; + lastscan=0;lastpos=0;lastoffset=0; + while(scan<newsize) { + oldscore=0; + + for(scsc=scan+=len;scan<newsize;scan++) { + len=search(I,old,oldsize,newdata+scan,newsize-scan, + 0,oldsize,&pos); + + for(;scsc<scan+len;scsc++) + if((scsc+lastoffset<oldsize) && + (old[scsc+lastoffset] == newdata[scsc])) + oldscore++; + + if(((len==oldscore) && (len!=0)) || + (len>oldscore+8)) break; + + if((scan+lastoffset<oldsize) && + (old[scan+lastoffset] == newdata[scan])) + oldscore--; + }; + + if((len!=oldscore) || (scan==newsize)) { + s=0;Sf=0;lenf=0; + for(i=0;(lastscan+i<scan)&&(lastpos+i<oldsize);) { + if(old[lastpos+i]==newdata[lastscan+i]) s++; + i++; + if(s*2-i>Sf*2-lenf) { Sf=s; lenf=i; }; + }; + + lenb=0; + if(scan<newsize) { + s=0;Sb=0; + for(i=1;(scan>=lastscan+i)&&(pos>=i);i++) { + if(old[pos-i]==newdata[scan-i]) s++; + if(s*2-i>Sb*2-lenb) { Sb=s; lenb=i; }; + }; + }; + + if(lastscan+lenf>scan-lenb) { + overlap=(lastscan+lenf)-(scan-lenb); + s=0;Ss=0;lens=0; + for(i=0;i<overlap;i++) { + if(newdata[lastscan+lenf-overlap+i]== + old[lastpos+lenf-overlap+i]) s++; + if(newdata[scan-lenb+i]== + old[pos-lenb+i]) s--; + if(s>Ss) { Ss=s; lens=i+1; }; + }; + + lenf+=lens-overlap; + lenb-=lens; + }; + + for(i=0;i<lenf;i++) + db[dblen+i]=newdata[lastscan+i]-old[lastpos+i]; + for(i=0;i<(scan-lenb)-(lastscan+lenf);i++) + eb[eblen+i]=newdata[lastscan+lenf+i]; + + dblen+=lenf; + eblen+=(scan-lenb)-(lastscan+lenf); + + offtout(lenf,buf); + BZ2_bzWrite(&bz2err, pfbz2, buf, 8); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); + + offtout((scan-lenb)-(lastscan+lenf),buf); + BZ2_bzWrite(&bz2err, pfbz2, buf, 8); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); + + offtout((pos-lenb)-(lastpos+lenf),buf); + BZ2_bzWrite(&bz2err, pfbz2, buf, 8); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); + + lastscan=scan-lenb; + lastpos=pos-lenb; + lastoffset=pos-scan; + }; + }; + BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); + + /* Compute size of compressed ctrl data */ + if ((len = ftello(pf)) == -1) + err(1, "ftello"); + offtout(len-32, header + 8); + + /* Write compressed diff data */ + if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) + errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); + BZ2_bzWrite(&bz2err, pfbz2, db, dblen); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); + BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); + + /* Compute size of compressed diff data */ + if ((newsize = ftello(pf)) == -1) + err(1, "ftello"); + offtout(newsize - len, header + 16); + + /* Write compressed extra data */ + if ((pfbz2 = BZ2_bzWriteOpen(&bz2err, pf, 9, 0, 0)) == NULL) + errx(1, "BZ2_bzWriteOpen, bz2err = %d", bz2err); + BZ2_bzWrite(&bz2err, pfbz2, eb, eblen); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWrite, bz2err = %d", bz2err); + BZ2_bzWriteClose(&bz2err, pfbz2, 0, NULL, NULL); + if (bz2err != BZ_OK) + errx(1, "BZ2_bzWriteClose, bz2err = %d", bz2err); + + /* Seek to the beginning, write the header, and close the file */ + if (fseeko(pf, 0, SEEK_SET)) + err(1, "fseeko"); + if (fwrite(header, 32, 1, pf) != 1) + err(1, "fwrite(%s)", patch_filename); + if (fclose(pf)) + err(1, "fclose"); + + /* Free the memory we used */ + free(db); + free(eb); + + return 0; +} diff --git a/applypatch/bspatch.c b/applypatch/bspatch.c deleted file mode 100644 index b57760eda..000000000 --- a/applypatch/bspatch.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -// This file is a nearly line-for-line copy of bspatch.c from the -// bsdiff-4.3 distribution; the primary differences being how the -// input and output data are read and the error handling. Running -// applypatch with the -l option will display the bsdiff license -// notice. - -#include <stdio.h> -#include <sys/stat.h> -#include <errno.h> -#include <malloc.h> -#include <unistd.h> -#include <string.h> - -#include <bzlib.h> - -#include "mincrypt/sha.h" -#include "applypatch.h" - -void ShowBSDiffLicense() { - puts("The bsdiff library used herein is:\n" - "\n" - "Copyright 2003-2005 Colin Percival\n" - "All rights reserved\n" - "\n" - "Redistribution and use in source and binary forms, with or without\n" - "modification, are permitted providing that the following conditions\n" - "are met:\n" - "1. Redistributions of source code must retain the above copyright\n" - " notice, this list of conditions and the following disclaimer.\n" - "2. Redistributions in binary form must reproduce the above copyright\n" - " notice, this list of conditions and the following disclaimer in the\n" - " documentation and/or other materials provided with the distribution.\n" - "\n" - "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n" - "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n" - "WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n" - "ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY\n" - "DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\n" - "DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\n" - "OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\n" - "HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\n" - "STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING\n" - "IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n" - "POSSIBILITY OF SUCH DAMAGE.\n" - "\n------------------\n\n" - "This program uses Julian R Seward's \"libbzip2\" library, available\n" - "from http://www.bzip.org/.\n" - ); -} - -static off_t offtin(u_char *buf) -{ - off_t y; - - y=buf[7]&0x7F; - y=y*256;y+=buf[6]; - y=y*256;y+=buf[5]; - y=y*256;y+=buf[4]; - y=y*256;y+=buf[3]; - y=y*256;y+=buf[2]; - y=y*256;y+=buf[1]; - y=y*256;y+=buf[0]; - - if(buf[7]&0x80) y=-y; - - return y; -} - -int FillBuffer(unsigned char* buffer, int size, bz_stream* stream) { - stream->next_out = (char*)buffer; - stream->avail_out = size; - while (stream->avail_out > 0) { - int bzerr = BZ2_bzDecompress(stream); - if (bzerr != BZ_OK && bzerr != BZ_STREAM_END) { - printf("bz error %d decompressing\n", bzerr); - return -1; - } - if (stream->avail_out > 0) { - printf("need %d more bytes\n", stream->avail_out); - } - } - return 0; -} - -int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, - const Value* patch, ssize_t patch_offset, - SinkFn sink, void* token, SHA_CTX* ctx) { - - unsigned char* new_data; - ssize_t new_size; - if (ApplyBSDiffPatchMem(old_data, old_size, patch, patch_offset, - &new_data, &new_size) != 0) { - return -1; - } - - if (sink(new_data, new_size, token) < new_size) { - printf("short write of output: %d (%s)\n", errno, strerror(errno)); - return 1; - } - if (ctx) SHA_update(ctx, new_data, new_size); - free(new_data); - - return 0; -} - -int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, - const Value* patch, ssize_t patch_offset, - unsigned char** new_data, ssize_t* new_size) { - // Patch data format: - // 0 8 "BSDIFF40" - // 8 8 X - // 16 8 Y - // 24 8 sizeof(newfile) - // 32 X bzip2(control block) - // 32+X Y bzip2(diff block) - // 32+X+Y ??? bzip2(extra block) - // with control block a set of triples (x,y,z) meaning "add x bytes - // from oldfile to x bytes from the diff block; copy y bytes from the - // extra block; seek forwards in oldfile by z bytes". - - unsigned char* header = (unsigned char*) patch->data + patch_offset; - if (memcmp(header, "BSDIFF40", 8) != 0) { - printf("corrupt bsdiff patch file header (magic number)\n"); - return 1; - } - - ssize_t ctrl_len, data_len; - ctrl_len = offtin(header+8); - data_len = offtin(header+16); - *new_size = offtin(header+24); - - if (ctrl_len < 0 || data_len < 0 || *new_size < 0) { - printf("corrupt patch file header (data lengths)\n"); - return 1; - } - - int bzerr; - - bz_stream cstream; - cstream.next_in = patch->data + patch_offset + 32; - cstream.avail_in = ctrl_len; - cstream.bzalloc = NULL; - cstream.bzfree = NULL; - cstream.opaque = NULL; - if ((bzerr = BZ2_bzDecompressInit(&cstream, 0, 0)) != BZ_OK) { - printf("failed to bzinit control stream (%d)\n", bzerr); - } - - bz_stream dstream; - dstream.next_in = patch->data + patch_offset + 32 + ctrl_len; - dstream.avail_in = data_len; - dstream.bzalloc = NULL; - dstream.bzfree = NULL; - dstream.opaque = NULL; - if ((bzerr = BZ2_bzDecompressInit(&dstream, 0, 0)) != BZ_OK) { - printf("failed to bzinit diff stream (%d)\n", bzerr); - } - - bz_stream estream; - estream.next_in = patch->data + patch_offset + 32 + ctrl_len + data_len; - estream.avail_in = patch->size - (patch_offset + 32 + ctrl_len + data_len); - estream.bzalloc = NULL; - estream.bzfree = NULL; - estream.opaque = NULL; - if ((bzerr = BZ2_bzDecompressInit(&estream, 0, 0)) != BZ_OK) { - printf("failed to bzinit extra stream (%d)\n", bzerr); - } - - *new_data = malloc(*new_size); - if (*new_data == NULL) { - printf("failed to allocate %ld bytes of memory for output file\n", - (long)*new_size); - return 1; - } - - off_t oldpos = 0, newpos = 0; - off_t ctrl[3]; - off_t len_read; - int i; - unsigned char buf[24]; - while (newpos < *new_size) { - // Read control data - if (FillBuffer(buf, 24, &cstream) != 0) { - printf("error while reading control stream\n"); - return 1; - } - ctrl[0] = offtin(buf); - ctrl[1] = offtin(buf+8); - ctrl[2] = offtin(buf+16); - - if (ctrl[0] < 0 || ctrl[1] < 0) { - printf("corrupt patch (negative byte counts)\n"); - return 1; - } - - // Sanity check - if (newpos + ctrl[0] > *new_size) { - printf("corrupt patch (new file overrun)\n"); - return 1; - } - - // Read diff string - if (FillBuffer(*new_data + newpos, ctrl[0], &dstream) != 0) { - printf("error while reading diff stream\n"); - return 1; - } - - // Add old data to diff string - for (i = 0; i < ctrl[0]; ++i) { - if ((oldpos+i >= 0) && (oldpos+i < old_size)) { - (*new_data)[newpos+i] += old_data[oldpos+i]; - } - } - - // Adjust pointers - newpos += ctrl[0]; - oldpos += ctrl[0]; - - // Sanity check - if (newpos + ctrl[1] > *new_size) { - printf("corrupt patch (new file overrun)\n"); - return 1; - } - - // Read extra string - if (FillBuffer(*new_data + newpos, ctrl[1], &estream) != 0) { - printf("error while reading extra stream\n"); - return 1; - } - - // Adjust pointers - newpos += ctrl[1]; - oldpos += ctrl[2]; - } - - BZ2_bzDecompressEnd(&cstream); - BZ2_bzDecompressEnd(&dstream); - BZ2_bzDecompressEnd(&estream); - return 0; -} diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp new file mode 100644 index 000000000..ebb55f1d1 --- /dev/null +++ b/applypatch/bspatch.cpp @@ -0,0 +1,247 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// This file is a nearly line-for-line copy of bspatch.c from the +// bsdiff-4.3 distribution; the primary differences being how the +// input and output data are read and the error handling. Running +// applypatch with the -l option will display the bsdiff license +// notice. + +#include <stdio.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <errno.h> +#include <unistd.h> +#include <string.h> + +#include <bzlib.h> + +#include "openssl/sha.h" +#include "applypatch.h" + +void ShowBSDiffLicense() { + puts("The bsdiff library used herein is:\n" + "\n" + "Copyright 2003-2005 Colin Percival\n" + "All rights reserved\n" + "\n" + "Redistribution and use in source and binary forms, with or without\n" + "modification, are permitted providing that the following conditions\n" + "are met:\n" + "1. Redistributions of source code must retain the above copyright\n" + " notice, this list of conditions and the following disclaimer.\n" + "2. Redistributions in binary form must reproduce the above copyright\n" + " notice, this list of conditions and the following disclaimer in the\n" + " documentation and/or other materials provided with the distribution.\n" + "\n" + "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n" + "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n" + "WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n" + "ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY\n" + "DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\n" + "DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\n" + "OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\n" + "HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,\n" + "STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING\n" + "IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n" + "POSSIBILITY OF SUCH DAMAGE.\n" + "\n------------------\n\n" + "This program uses Julian R Seward's \"libbzip2\" library, available\n" + "from http://www.bzip.org/.\n" + ); +} + +static off_t offtin(u_char *buf) +{ + off_t y; + + y=buf[7]&0x7F; + y=y*256;y+=buf[6]; + y=y*256;y+=buf[5]; + y=y*256;y+=buf[4]; + y=y*256;y+=buf[3]; + y=y*256;y+=buf[2]; + y=y*256;y+=buf[1]; + y=y*256;y+=buf[0]; + + if(buf[7]&0x80) y=-y; + + return y; +} + +int FillBuffer(unsigned char* buffer, int size, bz_stream* stream) { + stream->next_out = (char*)buffer; + stream->avail_out = size; + while (stream->avail_out > 0) { + int bzerr = BZ2_bzDecompress(stream); + if (bzerr != BZ_OK && bzerr != BZ_STREAM_END) { + printf("bz error %d decompressing\n", bzerr); + return -1; + } + if (stream->avail_out > 0) { + printf("need %d more bytes\n", stream->avail_out); + } + } + return 0; +} + +int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, + const Value* patch, ssize_t patch_offset, + SinkFn sink, void* token, SHA_CTX* ctx) { + + std::vector<unsigned char> new_data; + if (ApplyBSDiffPatchMem(old_data, old_size, patch, patch_offset, &new_data) != 0) { + return -1; + } + + if (sink(new_data.data(), new_data.size(), token) < static_cast<ssize_t>(new_data.size())) { + printf("short write of output: %d (%s)\n", errno, strerror(errno)); + return 1; + } + if (ctx) SHA1_Update(ctx, new_data.data(), new_data.size()); + return 0; +} + +int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, + const Value* patch, ssize_t patch_offset, + std::vector<unsigned char>* new_data) { + // Patch data format: + // 0 8 "BSDIFF40" + // 8 8 X + // 16 8 Y + // 24 8 sizeof(newfile) + // 32 X bzip2(control block) + // 32+X Y bzip2(diff block) + // 32+X+Y ??? bzip2(extra block) + // with control block a set of triples (x,y,z) meaning "add x bytes + // from oldfile to x bytes from the diff block; copy y bytes from the + // extra block; seek forwards in oldfile by z bytes". + + unsigned char* header = (unsigned char*) patch->data + patch_offset; + if (memcmp(header, "BSDIFF40", 8) != 0) { + printf("corrupt bsdiff patch file header (magic number)\n"); + return 1; + } + + ssize_t ctrl_len, data_len, new_size; + ctrl_len = offtin(header+8); + data_len = offtin(header+16); + new_size = offtin(header+24); + + if (ctrl_len < 0 || data_len < 0 || new_size < 0) { + printf("corrupt patch file header (data lengths)\n"); + return 1; + } + + int bzerr; + + bz_stream cstream; + cstream.next_in = patch->data + patch_offset + 32; + cstream.avail_in = ctrl_len; + cstream.bzalloc = NULL; + cstream.bzfree = NULL; + cstream.opaque = NULL; + if ((bzerr = BZ2_bzDecompressInit(&cstream, 0, 0)) != BZ_OK) { + printf("failed to bzinit control stream (%d)\n", bzerr); + } + + bz_stream dstream; + dstream.next_in = patch->data + patch_offset + 32 + ctrl_len; + dstream.avail_in = data_len; + dstream.bzalloc = NULL; + dstream.bzfree = NULL; + dstream.opaque = NULL; + if ((bzerr = BZ2_bzDecompressInit(&dstream, 0, 0)) != BZ_OK) { + printf("failed to bzinit diff stream (%d)\n", bzerr); + } + + bz_stream estream; + estream.next_in = patch->data + patch_offset + 32 + ctrl_len + data_len; + estream.avail_in = patch->size - (patch_offset + 32 + ctrl_len + data_len); + estream.bzalloc = NULL; + estream.bzfree = NULL; + estream.opaque = NULL; + if ((bzerr = BZ2_bzDecompressInit(&estream, 0, 0)) != BZ_OK) { + printf("failed to bzinit extra stream (%d)\n", bzerr); + } + + new_data->resize(new_size); + + off_t oldpos = 0, newpos = 0; + off_t ctrl[3]; + off_t len_read; + int i; + unsigned char buf[24]; + while (newpos < new_size) { + // Read control data + if (FillBuffer(buf, 24, &cstream) != 0) { + printf("error while reading control stream\n"); + return 1; + } + ctrl[0] = offtin(buf); + ctrl[1] = offtin(buf+8); + ctrl[2] = offtin(buf+16); + + if (ctrl[0] < 0 || ctrl[1] < 0) { + printf("corrupt patch (negative byte counts)\n"); + return 1; + } + + // Sanity check + if (newpos + ctrl[0] > new_size) { + printf("corrupt patch (new file overrun)\n"); + return 1; + } + + // Read diff string + if (FillBuffer(new_data->data() + newpos, ctrl[0], &dstream) != 0) { + printf("error while reading diff stream\n"); + return 1; + } + + // Add old data to diff string + for (i = 0; i < ctrl[0]; ++i) { + if ((oldpos+i >= 0) && (oldpos+i < old_size)) { + (*new_data)[newpos+i] += old_data[oldpos+i]; + } + } + + // Adjust pointers + newpos += ctrl[0]; + oldpos += ctrl[0]; + + // Sanity check + if (newpos + ctrl[1] > new_size) { + printf("corrupt patch (new file overrun)\n"); + return 1; + } + + // Read extra string + if (FillBuffer(new_data->data() + newpos, ctrl[1], &estream) != 0) { + printf("error while reading extra stream\n"); + return 1; + } + + // Adjust pointers + newpos += ctrl[1]; + oldpos += ctrl[2]; + } + + BZ2_bzDecompressEnd(&cstream); + BZ2_bzDecompressEnd(&dstream); + BZ2_bzDecompressEnd(&estream); + return 0; +} diff --git a/applypatch/freecache.c b/applypatch/freecache.c deleted file mode 100644 index 9827fda06..000000000 --- a/applypatch/freecache.c +++ /dev/null @@ -1,172 +0,0 @@ -#include <errno.h> -#include <libgen.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <unistd.h> -#include <dirent.h> -#include <ctype.h> - -#include "applypatch.h" - -static int EliminateOpenFiles(char** files, int file_count) { - DIR* d; - struct dirent* de; - d = opendir("/proc"); - if (d == NULL) { - printf("error opening /proc: %s\n", strerror(errno)); - return -1; - } - while ((de = readdir(d)) != 0) { - int i; - for (i = 0; de->d_name[i] != '\0' && isdigit(de->d_name[i]); ++i); - if (de->d_name[i]) continue; - - // de->d_name[i] is numeric - - char path[FILENAME_MAX]; - strcpy(path, "/proc/"); - strcat(path, de->d_name); - strcat(path, "/fd/"); - - DIR* fdd; - struct dirent* fdde; - fdd = opendir(path); - if (fdd == NULL) { - printf("error opening %s: %s\n", path, strerror(errno)); - continue; - } - while ((fdde = readdir(fdd)) != 0) { - char fd_path[FILENAME_MAX]; - char link[FILENAME_MAX]; - strcpy(fd_path, path); - strcat(fd_path, fdde->d_name); - - int count; - count = readlink(fd_path, link, sizeof(link)-1); - if (count >= 0) { - link[count] = '\0'; - - // This is inefficient, but it should only matter if there are - // lots of files in /cache, and lots of them are open (neither - // of which should be true, especially in recovery). - if (strncmp(link, "/cache/", 7) == 0) { - int j; - for (j = 0; j < file_count; ++j) { - if (files[j] && strcmp(files[j], link) == 0) { - printf("%s is open by %s\n", link, de->d_name); - free(files[j]); - files[j] = NULL; - } - } - } - } - } - closedir(fdd); - } - closedir(d); - - return 0; -} - -int FindExpendableFiles(char*** names, int* entries) { - DIR* d; - struct dirent* de; - int size = 32; - *entries = 0; - *names = malloc(size * sizeof(char*)); - - char path[FILENAME_MAX]; - - // We're allowed to delete unopened regular files in any of these - // directories. - const char* dirs[2] = {"/cache", "/cache/recovery/otatest"}; - - unsigned int i; - for (i = 0; i < sizeof(dirs)/sizeof(dirs[0]); ++i) { - d = opendir(dirs[i]); - if (d == NULL) { - printf("error opening %s: %s\n", dirs[i], strerror(errno)); - continue; - } - - // Look for regular files in the directory (not in any subdirectories). - while ((de = readdir(d)) != 0) { - strcpy(path, dirs[i]); - strcat(path, "/"); - strcat(path, de->d_name); - - // We can't delete CACHE_TEMP_SOURCE; if it's there we might have - // restarted during installation and could be depending on it to - // be there. - if (strcmp(path, CACHE_TEMP_SOURCE) == 0) continue; - - struct stat st; - if (stat(path, &st) == 0 && S_ISREG(st.st_mode)) { - if (*entries >= size) { - size *= 2; - *names = realloc(*names, size * sizeof(char*)); - } - (*names)[(*entries)++] = strdup(path); - } - } - - closedir(d); - } - - printf("%d regular files in deletable directories\n", *entries); - - if (EliminateOpenFiles(*names, *entries) < 0) { - return -1; - } - - return 0; -} - -int MakeFreeSpaceOnCache(size_t bytes_needed) { - size_t free_now = FreeSpaceForFile("/cache"); - printf("%ld bytes free on /cache (%ld needed)\n", - (long)free_now, (long)bytes_needed); - - if (free_now >= bytes_needed) { - return 0; - } - - char** names; - int entries; - - if (FindExpendableFiles(&names, &entries) < 0) { - return -1; - } - - if (entries == 0) { - // nothing we can delete to free up space! - printf("no files can be deleted to free space on /cache\n"); - return -1; - } - - // We could try to be smarter about which files to delete: the - // biggest ones? the smallest ones that will free up enough space? - // the oldest? the newest? - // - // Instead, we'll be dumb. - - int i; - for (i = 0; i < entries && free_now < bytes_needed; ++i) { - if (names[i]) { - unlink(names[i]); - free_now = FreeSpaceForFile("/cache"); - printf("deleted %s; now %ld bytes free\n", names[i], (long)free_now); - free(names[i]); - } - } - - for (; i < entries; ++i) { - free(names[i]); - } - free(names); - - return (free_now >= bytes_needed) ? 0 : -1; -} diff --git a/applypatch/freecache.cpp b/applypatch/freecache.cpp new file mode 100644 index 000000000..c84f42797 --- /dev/null +++ b/applypatch/freecache.cpp @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <errno.h> +#include <libgen.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/statfs.h> +#include <unistd.h> +#include <dirent.h> +#include <ctype.h> + +#include <memory> +#include <set> +#include <string> + +#include <android-base/parseint.h> +#include <android-base/stringprintf.h> + +#include "applypatch.h" + +static int EliminateOpenFiles(std::set<std::string>* files) { + std::unique_ptr<DIR, decltype(&closedir)> d(opendir("/proc"), closedir); + if (!d) { + printf("error opening /proc: %s\n", strerror(errno)); + return -1; + } + struct dirent* de; + while ((de = readdir(d.get())) != 0) { + unsigned int pid; + if (!android::base::ParseUint(de->d_name, &pid)) { + continue; + } + std::string path = android::base::StringPrintf("/proc/%s/fd/", de->d_name); + + struct dirent* fdde; + std::unique_ptr<DIR, decltype(&closedir)> fdd(opendir(path.c_str()), closedir); + if (!fdd) { + printf("error opening %s: %s\n", path.c_str(), strerror(errno)); + continue; + } + while ((fdde = readdir(fdd.get())) != 0) { + std::string fd_path = path + fdde->d_name; + char link[FILENAME_MAX]; + + int count = readlink(fd_path.c_str(), link, sizeof(link)-1); + if (count >= 0) { + link[count] = '\0'; + if (strncmp(link, "/cache/", 7) == 0) { + if (files->erase(link) > 0) { + printf("%s is open by %s\n", link, de->d_name); + } + } + } + } + } + return 0; +} + +static std::set<std::string> FindExpendableFiles() { + std::set<std::string> files; + // We're allowed to delete unopened regular files in any of these + // directories. + const char* dirs[2] = {"/cache", "/cache/recovery/otatest"}; + + for (size_t i = 0; i < sizeof(dirs)/sizeof(dirs[0]); ++i) { + std::unique_ptr<DIR, decltype(&closedir)> d(opendir(dirs[i]), closedir); + if (!d) { + printf("error opening %s: %s\n", dirs[i], strerror(errno)); + continue; + } + + // Look for regular files in the directory (not in any subdirectories). + struct dirent* de; + while ((de = readdir(d.get())) != 0) { + std::string path = std::string(dirs[i]) + "/" + de->d_name; + + // We can't delete CACHE_TEMP_SOURCE; if it's there we might have + // restarted during installation and could be depending on it to + // be there. + if (path == CACHE_TEMP_SOURCE) { + continue; + } + + struct stat st; + if (stat(path.c_str(), &st) == 0 && S_ISREG(st.st_mode)) { + files.insert(path); + } + } + } + + printf("%zu regular files in deletable directories\n", files.size()); + if (EliminateOpenFiles(&files) < 0) { + return std::set<std::string>(); + } + return files; +} + +int MakeFreeSpaceOnCache(size_t bytes_needed) { + size_t free_now = FreeSpaceForFile("/cache"); + printf("%zu bytes free on /cache (%zu needed)\n", free_now, bytes_needed); + + if (free_now >= bytes_needed) { + return 0; + } + std::set<std::string> files = FindExpendableFiles(); + if (files.empty()) { + // nothing we can delete to free up space! + printf("no files can be deleted to free space on /cache\n"); + return -1; + } + + // We could try to be smarter about which files to delete: the + // biggest ones? the smallest ones that will free up enough space? + // the oldest? the newest? + // + // Instead, we'll be dumb. + + for (const auto& file : files) { + unlink(file.c_str()); + free_now = FreeSpaceForFile("/cache"); + printf("deleted %s; now %zu bytes free\n", file.c_str(), free_now); + if (free_now < bytes_needed) { + break; + } + } + return (free_now >= bytes_needed) ? 0 : -1; +} diff --git a/applypatch/imgdiff.c b/applypatch/imgdiff.c deleted file mode 100644 index 3bac8be91..000000000 --- a/applypatch/imgdiff.c +++ /dev/null @@ -1,1060 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/* - * This program constructs binary patches for images -- such as boot.img - * and recovery.img -- that consist primarily of large chunks of gzipped - * data interspersed with uncompressed data. Doing a naive bsdiff of - * these files is not useful because small changes in the data lead to - * large changes in the compressed bitstream; bsdiff patches of gzipped - * data are typically as large as the data itself. - * - * To patch these usefully, we break the source and target images up into - * chunks of two types: "normal" and "gzip". Normal chunks are simply - * patched using a plain bsdiff. Gzip chunks are first expanded, then a - * bsdiff is applied to the uncompressed data, then the patched data is - * gzipped using the same encoder parameters. Patched chunks are - * concatenated together to create the output file; the output image - * should be *exactly* the same series of bytes as the target image used - * originally to generate the patch. - * - * To work well with this tool, the gzipped sections of the target - * image must have been generated using the same deflate encoder that - * is available in applypatch, namely, the one in the zlib library. - * In practice this means that images should be compressed using the - * "minigzip" tool included in the zlib distribution, not the GNU gzip - * program. - * - * An "imgdiff" patch consists of a header describing the chunk structure - * of the file and any encoding parameters needed for the gzipped - * chunks, followed by N bsdiff patches, one per chunk. - * - * For a diff to be generated, the source and target images must have the - * same "chunk" structure: that is, the same number of gzipped and normal - * chunks in the same order. Android boot and recovery images currently - * consist of five chunks: a small normal header, a gzipped kernel, a - * small normal section, a gzipped ramdisk, and finally a small normal - * footer. - * - * Caveats: we locate gzipped sections within the source and target - * images by searching for the byte sequence 1f8b0800: 1f8b is the gzip - * magic number; 08 specifies the "deflate" encoding [the only encoding - * supported by the gzip standard]; and 00 is the flags byte. We do not - * currently support any extra header fields (which would be indicated by - * a nonzero flags byte). We also don't handle the case when that byte - * sequence appears spuriously in the file. (Note that it would have to - * occur spuriously within a normal chunk to be a problem.) - * - * - * The imgdiff patch header looks like this: - * - * "IMGDIFF1" (8) [magic number and version] - * chunk count (4) - * for each chunk: - * chunk type (4) [CHUNK_{NORMAL, GZIP, DEFLATE, RAW}] - * if chunk type == CHUNK_NORMAL: - * source start (8) - * source len (8) - * bsdiff patch offset (8) [from start of patch file] - * if chunk type == CHUNK_GZIP: (version 1 only) - * source start (8) - * source len (8) - * bsdiff patch offset (8) [from start of patch file] - * source expanded len (8) [size of uncompressed source] - * target expected len (8) [size of uncompressed target] - * gzip level (4) - * method (4) - * windowBits (4) - * memLevel (4) - * strategy (4) - * gzip header len (4) - * gzip header (gzip header len) - * gzip footer (8) - * if chunk type == CHUNK_DEFLATE: (version 2 only) - * source start (8) - * source len (8) - * bsdiff patch offset (8) [from start of patch file] - * source expanded len (8) [size of uncompressed source] - * target expected len (8) [size of uncompressed target] - * gzip level (4) - * method (4) - * windowBits (4) - * memLevel (4) - * strategy (4) - * if chunk type == RAW: (version 2 only) - * target len (4) - * data (target len) - * - * All integers are little-endian. "source start" and "source len" - * specify the section of the input image that comprises this chunk, - * including the gzip header and footer for gzip chunks. "source - * expanded len" is the size of the uncompressed source data. "target - * expected len" is the size of the uncompressed data after applying - * the bsdiff patch. The next five parameters specify the zlib - * parameters to be used when compressing the patched data, and the - * next three specify the header and footer to be wrapped around the - * compressed data to create the output chunk (so that header contents - * like the timestamp are recreated exactly). - * - * After the header there are 'chunk count' bsdiff patches; the offset - * of each from the beginning of the file is specified in the header. - * - * This tool can take an optional file of "bonus data". This is an - * extra file of data that is appended to chunk #1 after it is - * compressed (it must be a CHUNK_DEFLATE chunk). The same file must - * be available (and passed to applypatch with -b) when applying the - * patch. This is used to reduce the size of recovery-from-boot - * patches by combining the boot image with recovery ramdisk - * information that is stored on the system partition. - */ - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <unistd.h> -#include <sys/types.h> - -#include "zlib.h" -#include "imgdiff.h" -#include "utils.h" - -typedef struct { - int type; // CHUNK_NORMAL, CHUNK_DEFLATE - size_t start; // offset of chunk in original image file - - size_t len; - unsigned char* data; // data to be patched (uncompressed, for deflate chunks) - - size_t source_start; - size_t source_len; - - off_t* I; // used by bsdiff - - // --- for CHUNK_DEFLATE chunks only: --- - - // original (compressed) deflate data - size_t deflate_len; - unsigned char* deflate_data; - - char* filename; // used for zip entries - - // deflate encoder parameters - int level, method, windowBits, memLevel, strategy; - - size_t source_uncompressed_len; -} ImageChunk; - -typedef struct { - int data_offset; - int deflate_len; - int uncomp_len; - char* filename; -} ZipFileEntry; - -static int fileentry_compare(const void* a, const void* b) { - int ao = ((ZipFileEntry*)a)->data_offset; - int bo = ((ZipFileEntry*)b)->data_offset; - if (ao < bo) { - return -1; - } else if (ao > bo) { - return 1; - } else { - return 0; - } -} - -// from bsdiff.c -int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* new, off_t newsize, - const char* patch_filename); - -unsigned char* ReadZip(const char* filename, - int* num_chunks, ImageChunk** chunks, - int include_pseudo_chunk) { - struct stat st; - if (stat(filename, &st) != 0) { - printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); - return NULL; - } - - unsigned char* img = malloc(st.st_size); - FILE* f = fopen(filename, "rb"); - if (fread(img, 1, st.st_size, f) != st.st_size) { - printf("failed to read \"%s\" %s\n", filename, strerror(errno)); - fclose(f); - return NULL; - } - fclose(f); - - // look for the end-of-central-directory record. - - int i; - for (i = st.st_size-20; i >= 0 && i > st.st_size - 65600; --i) { - if (img[i] == 0x50 && img[i+1] == 0x4b && - img[i+2] == 0x05 && img[i+3] == 0x06) { - break; - } - } - // double-check: this archive consists of a single "disk" - if (!(img[i+4] == 0 && img[i+5] == 0 && img[i+6] == 0 && img[i+7] == 0)) { - printf("can't process multi-disk archive\n"); - return NULL; - } - - int cdcount = Read2(img+i+8); - int cdoffset = Read4(img+i+16); - - ZipFileEntry* temp_entries = malloc(cdcount * sizeof(ZipFileEntry)); - int entrycount = 0; - - unsigned char* cd = img+cdoffset; - for (i = 0; i < cdcount; ++i) { - if (!(cd[0] == 0x50 && cd[1] == 0x4b && cd[2] == 0x01 && cd[3] == 0x02)) { - printf("bad central directory entry %d\n", i); - return NULL; - } - - int clen = Read4(cd+20); // compressed len - int ulen = Read4(cd+24); // uncompressed len - int nlen = Read2(cd+28); // filename len - int xlen = Read2(cd+30); // extra field len - int mlen = Read2(cd+32); // file comment len - int hoffset = Read4(cd+42); // local header offset - - char* filename = malloc(nlen+1); - memcpy(filename, cd+46, nlen); - filename[nlen] = '\0'; - - int method = Read2(cd+10); - - cd += 46 + nlen + xlen + mlen; - - if (method != 8) { // 8 == deflate - free(filename); - continue; - } - - unsigned char* lh = img + hoffset; - - if (!(lh[0] == 0x50 && lh[1] == 0x4b && lh[2] == 0x03 && lh[3] == 0x04)) { - printf("bad local file header entry %d\n", i); - return NULL; - } - - if (Read2(lh+26) != nlen || memcmp(lh+30, filename, nlen) != 0) { - printf("central dir filename doesn't match local header\n"); - return NULL; - } - - xlen = Read2(lh+28); // extra field len; might be different from CD entry? - - temp_entries[entrycount].data_offset = hoffset+30+nlen+xlen; - temp_entries[entrycount].deflate_len = clen; - temp_entries[entrycount].uncomp_len = ulen; - temp_entries[entrycount].filename = filename; - ++entrycount; - } - - qsort(temp_entries, entrycount, sizeof(ZipFileEntry), fileentry_compare); - -#if 0 - printf("found %d deflated entries\n", entrycount); - for (i = 0; i < entrycount; ++i) { - printf("off %10d len %10d unlen %10d %p %s\n", - temp_entries[i].data_offset, - temp_entries[i].deflate_len, - temp_entries[i].uncomp_len, - temp_entries[i].filename, - temp_entries[i].filename); - } -#endif - - *num_chunks = 0; - *chunks = malloc((entrycount*2+2) * sizeof(ImageChunk)); - ImageChunk* curr = *chunks; - - if (include_pseudo_chunk) { - curr->type = CHUNK_NORMAL; - curr->start = 0; - curr->len = st.st_size; - curr->data = img; - curr->filename = NULL; - curr->I = NULL; - ++curr; - ++*num_chunks; - } - - int pos = 0; - int nextentry = 0; - - while (pos < st.st_size) { - if (nextentry < entrycount && pos == temp_entries[nextentry].data_offset) { - curr->type = CHUNK_DEFLATE; - curr->start = pos; - curr->deflate_len = temp_entries[nextentry].deflate_len; - curr->deflate_data = img + pos; - curr->filename = temp_entries[nextentry].filename; - curr->I = NULL; - - curr->len = temp_entries[nextentry].uncomp_len; - curr->data = malloc(curr->len); - - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = curr->deflate_len; - strm.next_in = curr->deflate_data; - - // -15 means we are decoding a 'raw' deflate stream; zlib will - // not expect zlib headers. - int ret = inflateInit2(&strm, -15); - - strm.avail_out = curr->len; - strm.next_out = curr->data; - ret = inflate(&strm, Z_NO_FLUSH); - if (ret != Z_STREAM_END) { - printf("failed to inflate \"%s\"; %d\n", curr->filename, ret); - return NULL; - } - - inflateEnd(&strm); - - pos += curr->deflate_len; - ++nextentry; - ++*num_chunks; - ++curr; - continue; - } - - // use a normal chunk to take all the data up to the start of the - // next deflate section. - - curr->type = CHUNK_NORMAL; - curr->start = pos; - if (nextentry < entrycount) { - curr->len = temp_entries[nextentry].data_offset - pos; - } else { - curr->len = st.st_size - pos; - } - curr->data = img + pos; - curr->filename = NULL; - curr->I = NULL; - pos += curr->len; - - ++*num_chunks; - ++curr; - } - - free(temp_entries); - return img; -} - -/* - * Read the given file and break it up into chunks, putting the number - * of chunks and their info in *num_chunks and **chunks, - * respectively. Returns a malloc'd block of memory containing the - * contents of the file; various pointers in the output chunk array - * will point into this block of memory. The caller should free the - * return value when done with all the chunks. Returns NULL on - * failure. - */ -unsigned char* ReadImage(const char* filename, - int* num_chunks, ImageChunk** chunks) { - struct stat st; - if (stat(filename, &st) != 0) { - printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); - return NULL; - } - - unsigned char* img = malloc(st.st_size + 4); - FILE* f = fopen(filename, "rb"); - if (fread(img, 1, st.st_size, f) != st.st_size) { - printf("failed to read \"%s\" %s\n", filename, strerror(errno)); - fclose(f); - return NULL; - } - fclose(f); - - // append 4 zero bytes to the data so we can always search for the - // four-byte string 1f8b0800 starting at any point in the actual - // file data, without special-casing the end of the data. - memset(img+st.st_size, 0, 4); - - size_t pos = 0; - - *num_chunks = 0; - *chunks = NULL; - - while (pos < st.st_size) { - unsigned char* p = img+pos; - - if (st.st_size - pos >= 4 && - p[0] == 0x1f && p[1] == 0x8b && - p[2] == 0x08 && // deflate compression - p[3] == 0x00) { // no header flags - // 'pos' is the offset of the start of a gzip chunk. - size_t chunk_offset = pos; - - *num_chunks += 3; - *chunks = realloc(*chunks, *num_chunks * sizeof(ImageChunk)); - ImageChunk* curr = *chunks + (*num_chunks-3); - - // create a normal chunk for the header. - curr->start = pos; - curr->type = CHUNK_NORMAL; - curr->len = GZIP_HEADER_LEN; - curr->data = p; - curr->I = NULL; - - pos += curr->len; - p += curr->len; - ++curr; - - curr->type = CHUNK_DEFLATE; - curr->filename = NULL; - curr->I = NULL; - - // We must decompress this chunk in order to discover where it - // ends, and so we can put the uncompressed data and its length - // into curr->data and curr->len. - - size_t allocated = 32768; - curr->len = 0; - curr->data = malloc(allocated); - curr->start = pos; - curr->deflate_data = p; - - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = st.st_size - pos; - strm.next_in = p; - - // -15 means we are decoding a 'raw' deflate stream; zlib will - // not expect zlib headers. - int ret = inflateInit2(&strm, -15); - - do { - strm.avail_out = allocated - curr->len; - strm.next_out = curr->data + curr->len; - ret = inflate(&strm, Z_NO_FLUSH); - if (ret < 0) { - printf("Error: inflate failed [%s] at file offset [%zu]\n" - "imgdiff only supports gzip kernel compression," - " did you try CONFIG_KERNEL_LZO?\n", - strm.msg, chunk_offset); - free(img); - return NULL; - } - curr->len = allocated - strm.avail_out; - if (strm.avail_out == 0) { - allocated *= 2; - curr->data = realloc(curr->data, allocated); - } - } while (ret != Z_STREAM_END); - - curr->deflate_len = st.st_size - strm.avail_in - pos; - inflateEnd(&strm); - pos += curr->deflate_len; - p += curr->deflate_len; - ++curr; - - // create a normal chunk for the footer - - curr->type = CHUNK_NORMAL; - curr->start = pos; - curr->len = GZIP_FOOTER_LEN; - curr->data = img+pos; - curr->I = NULL; - - pos += curr->len; - p += curr->len; - ++curr; - - // The footer (that we just skipped over) contains the size of - // the uncompressed data. Double-check to make sure that it - // matches the size of the data we got when we actually did - // the decompression. - size_t footer_size = Read4(p-4); - if (footer_size != curr[-2].len) { - printf("Error: footer size %d != decompressed size %d\n", - footer_size, curr[-2].len); - free(img); - return NULL; - } - } else { - // Reallocate the list for every chunk; we expect the number of - // chunks to be small (5 for typical boot and recovery images). - ++*num_chunks; - *chunks = realloc(*chunks, *num_chunks * sizeof(ImageChunk)); - ImageChunk* curr = *chunks + (*num_chunks-1); - curr->start = pos; - curr->I = NULL; - - // 'pos' is not the offset of the start of a gzip chunk, so scan - // forward until we find a gzip header. - curr->type = CHUNK_NORMAL; - curr->data = p; - - for (curr->len = 0; curr->len < (st.st_size - pos); ++curr->len) { - if (p[curr->len] == 0x1f && - p[curr->len+1] == 0x8b && - p[curr->len+2] == 0x08 && - p[curr->len+3] == 0x00) { - break; - } - } - pos += curr->len; - } - } - - return img; -} - -#define BUFFER_SIZE 32768 - -/* - * Takes the uncompressed data stored in the chunk, compresses it - * using the zlib parameters stored in the chunk, and checks that it - * matches exactly the compressed data we started with (also stored in - * the chunk). Return 0 on success. - */ -int TryReconstruction(ImageChunk* chunk, unsigned char* out) { - size_t p = 0; - -#if 0 - printf("trying %d %d %d %d %d\n", - chunk->level, chunk->method, chunk->windowBits, - chunk->memLevel, chunk->strategy); -#endif - - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = chunk->len; - strm.next_in = chunk->data; - int ret; - ret = deflateInit2(&strm, chunk->level, chunk->method, chunk->windowBits, - chunk->memLevel, chunk->strategy); - do { - strm.avail_out = BUFFER_SIZE; - strm.next_out = out; - ret = deflate(&strm, Z_FINISH); - size_t have = BUFFER_SIZE - strm.avail_out; - - if (memcmp(out, chunk->deflate_data+p, have) != 0) { - // mismatch; data isn't the same. - deflateEnd(&strm); - return -1; - } - p += have; - } while (ret != Z_STREAM_END); - deflateEnd(&strm); - if (p != chunk->deflate_len) { - // mismatch; ran out of data before we should have. - return -1; - } - return 0; -} - -/* - * Verify that we can reproduce exactly the same compressed data that - * we started with. Sets the level, method, windowBits, memLevel, and - * strategy fields in the chunk to the encoding parameters needed to - * produce the right output. Returns 0 on success. - */ -int ReconstructDeflateChunk(ImageChunk* chunk) { - if (chunk->type != CHUNK_DEFLATE) { - printf("attempt to reconstruct non-deflate chunk\n"); - return -1; - } - - size_t p = 0; - unsigned char* out = malloc(BUFFER_SIZE); - - // We only check two combinations of encoder parameters: level 6 - // (the default) and level 9 (the maximum). - for (chunk->level = 6; chunk->level <= 9; chunk->level += 3) { - chunk->windowBits = -15; // 32kb window; negative to indicate a raw stream. - chunk->memLevel = 8; // the default value. - chunk->method = Z_DEFLATED; - chunk->strategy = Z_DEFAULT_STRATEGY; - - if (TryReconstruction(chunk, out) == 0) { - free(out); - return 0; - } - } - - free(out); - return -1; -} - -/* - * Given source and target chunks, compute a bsdiff patch between them - * by running bsdiff in a subprocess. Return the patch data, placing - * its length in *size. Return NULL on failure. We expect the bsdiff - * program to be in the path. - */ -unsigned char* MakePatch(ImageChunk* src, ImageChunk* tgt, size_t* size) { - if (tgt->type == CHUNK_NORMAL) { - if (tgt->len <= 160) { - tgt->type = CHUNK_RAW; - *size = tgt->len; - return tgt->data; - } - } - - char ptemp[] = "/tmp/imgdiff-patch-XXXXXX"; - mkstemp(ptemp); - - int r = bsdiff(src->data, src->len, &(src->I), tgt->data, tgt->len, ptemp); - if (r != 0) { - printf("bsdiff() failed: %d\n", r); - return NULL; - } - - struct stat st; - if (stat(ptemp, &st) != 0) { - printf("failed to stat patch file %s: %s\n", - ptemp, strerror(errno)); - return NULL; - } - - unsigned char* data = malloc(st.st_size); - - if (tgt->type == CHUNK_NORMAL && tgt->len <= st.st_size) { - unlink(ptemp); - - tgt->type = CHUNK_RAW; - *size = tgt->len; - return tgt->data; - } - - *size = st.st_size; - - FILE* f = fopen(ptemp, "rb"); - if (f == NULL) { - printf("failed to open patch %s: %s\n", ptemp, strerror(errno)); - return NULL; - } - if (fread(data, 1, st.st_size, f) != st.st_size) { - printf("failed to read patch %s: %s\n", ptemp, strerror(errno)); - return NULL; - } - fclose(f); - - unlink(ptemp); - - tgt->source_start = src->start; - switch (tgt->type) { - case CHUNK_NORMAL: - tgt->source_len = src->len; - break; - case CHUNK_DEFLATE: - tgt->source_len = src->deflate_len; - tgt->source_uncompressed_len = src->len; - break; - } - - return data; -} - -/* - * Cause a gzip chunk to be treated as a normal chunk (ie, as a blob - * of uninterpreted data). The resulting patch will likely be about - * as big as the target file, but it lets us handle the case of images - * where some gzip chunks are reconstructible but others aren't (by - * treating the ones that aren't as normal chunks). - */ -void ChangeDeflateChunkToNormal(ImageChunk* ch) { - if (ch->type != CHUNK_DEFLATE) return; - ch->type = CHUNK_NORMAL; - free(ch->data); - ch->data = ch->deflate_data; - ch->len = ch->deflate_len; -} - -/* - * Return true if the data in the chunk is identical (including the - * compressed representation, for gzip chunks). - */ -int AreChunksEqual(ImageChunk* a, ImageChunk* b) { - if (a->type != b->type) return 0; - - switch (a->type) { - case CHUNK_NORMAL: - return a->len == b->len && memcmp(a->data, b->data, a->len) == 0; - - case CHUNK_DEFLATE: - return a->deflate_len == b->deflate_len && - memcmp(a->deflate_data, b->deflate_data, a->deflate_len) == 0; - - default: - printf("unknown chunk type %d\n", a->type); - return 0; - } -} - -/* - * Look for runs of adjacent normal chunks and compress them down into - * a single chunk. (Such runs can be produced when deflate chunks are - * changed to normal chunks.) - */ -void MergeAdjacentNormalChunks(ImageChunk* chunks, int* num_chunks) { - int out = 0; - int in_start = 0, in_end; - while (in_start < *num_chunks) { - if (chunks[in_start].type != CHUNK_NORMAL) { - in_end = in_start+1; - } else { - // in_start is a normal chunk. Look for a run of normal chunks - // that constitute a solid block of data (ie, each chunk begins - // where the previous one ended). - for (in_end = in_start+1; - in_end < *num_chunks && chunks[in_end].type == CHUNK_NORMAL && - (chunks[in_end].start == - chunks[in_end-1].start + chunks[in_end-1].len && - chunks[in_end].data == - chunks[in_end-1].data + chunks[in_end-1].len); - ++in_end); - } - - if (in_end == in_start+1) { -#if 0 - printf("chunk %d is now %d\n", in_start, out); -#endif - if (out != in_start) { - memcpy(chunks+out, chunks+in_start, sizeof(ImageChunk)); - } - } else { -#if 0 - printf("collapse normal chunks %d-%d into %d\n", in_start, in_end-1, out); -#endif - - // Merge chunks [in_start, in_end-1] into one chunk. Since the - // data member of each chunk is just a pointer into an in-memory - // copy of the file, this can be done without recopying (the - // output chunk has the first chunk's start location and data - // pointer, and length equal to the sum of the input chunk - // lengths). - chunks[out].type = CHUNK_NORMAL; - chunks[out].start = chunks[in_start].start; - chunks[out].data = chunks[in_start].data; - chunks[out].len = chunks[in_end-1].len + - (chunks[in_end-1].start - chunks[in_start].start); - } - - ++out; - in_start = in_end; - } - *num_chunks = out; -} - -ImageChunk* FindChunkByName(const char* name, - ImageChunk* chunks, int num_chunks) { - int i; - for (i = 0; i < num_chunks; ++i) { - if (chunks[i].type == CHUNK_DEFLATE && chunks[i].filename && - strcmp(name, chunks[i].filename) == 0) { - return chunks+i; - } - } - return NULL; -} - -void DumpChunks(ImageChunk* chunks, int num_chunks) { - int i; - for (i = 0; i < num_chunks; ++i) { - printf("chunk %d: type %d start %d len %d\n", - i, chunks[i].type, chunks[i].start, chunks[i].len); - } -} - -int main(int argc, char** argv) { - int zip_mode = 0; - - if (argc >= 2 && strcmp(argv[1], "-z") == 0) { - zip_mode = 1; - --argc; - ++argv; - } - - size_t bonus_size = 0; - unsigned char* bonus_data = NULL; - if (argc >= 3 && strcmp(argv[1], "-b") == 0) { - struct stat st; - if (stat(argv[2], &st) != 0) { - printf("failed to stat bonus file %s: %s\n", argv[2], strerror(errno)); - return 1; - } - bonus_size = st.st_size; - bonus_data = malloc(bonus_size); - FILE* f = fopen(argv[2], "rb"); - if (f == NULL) { - printf("failed to open bonus file %s: %s\n", argv[2], strerror(errno)); - return 1; - } - if (fread(bonus_data, 1, bonus_size, f) != bonus_size) { - printf("failed to read bonus file %s: %s\n", argv[2], strerror(errno)); - return 1; - } - fclose(f); - - argc -= 2; - argv += 2; - } - - if (argc != 4) { - usage: - printf("usage: %s [-z] [-b <bonus-file>] <src-img> <tgt-img> <patch-file>\n", - argv[0]); - return 2; - } - - int num_src_chunks; - ImageChunk* src_chunks; - int num_tgt_chunks; - ImageChunk* tgt_chunks; - int i; - - if (zip_mode) { - if (ReadZip(argv[1], &num_src_chunks, &src_chunks, 1) == NULL) { - printf("failed to break apart source zip file\n"); - return 1; - } - if (ReadZip(argv[2], &num_tgt_chunks, &tgt_chunks, 0) == NULL) { - printf("failed to break apart target zip file\n"); - return 1; - } - } else { - if (ReadImage(argv[1], &num_src_chunks, &src_chunks) == NULL) { - printf("failed to break apart source image\n"); - return 1; - } - if (ReadImage(argv[2], &num_tgt_chunks, &tgt_chunks) == NULL) { - printf("failed to break apart target image\n"); - return 1; - } - - // Verify that the source and target images have the same chunk - // structure (ie, the same sequence of deflate and normal chunks). - - if (!zip_mode) { - // Merge the gzip header and footer in with any adjacent - // normal chunks. - MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); - MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); - } - - if (num_src_chunks != num_tgt_chunks) { - printf("source and target don't have same number of chunks!\n"); - printf("source chunks:\n"); - DumpChunks(src_chunks, num_src_chunks); - printf("target chunks:\n"); - DumpChunks(tgt_chunks, num_tgt_chunks); - return 1; - } - for (i = 0; i < num_src_chunks; ++i) { - if (src_chunks[i].type != tgt_chunks[i].type) { - printf("source and target don't have same chunk " - "structure! (chunk %d)\n", i); - printf("source chunks:\n"); - DumpChunks(src_chunks, num_src_chunks); - printf("target chunks:\n"); - DumpChunks(tgt_chunks, num_tgt_chunks); - return 1; - } - } - } - - for (i = 0; i < num_tgt_chunks; ++i) { - if (tgt_chunks[i].type == CHUNK_DEFLATE) { - // Confirm that given the uncompressed chunk data in the target, we - // can recompress it and get exactly the same bits as are in the - // input target image. If this fails, treat the chunk as a normal - // non-deflated chunk. - if (ReconstructDeflateChunk(tgt_chunks+i) < 0) { - printf("failed to reconstruct target deflate chunk %d [%s]; " - "treating as normal\n", i, tgt_chunks[i].filename); - ChangeDeflateChunkToNormal(tgt_chunks+i); - if (zip_mode) { - ImageChunk* src = FindChunkByName(tgt_chunks[i].filename, src_chunks, num_src_chunks); - if (src) { - ChangeDeflateChunkToNormal(src); - } - } else { - ChangeDeflateChunkToNormal(src_chunks+i); - } - continue; - } - - // If two deflate chunks are identical (eg, the kernel has not - // changed between two builds), treat them as normal chunks. - // This makes applypatch much faster -- it can apply a trivial - // patch to the compressed data, rather than uncompressing and - // recompressing to apply the trivial patch to the uncompressed - // data. - ImageChunk* src; - if (zip_mode) { - src = FindChunkByName(tgt_chunks[i].filename, src_chunks, num_src_chunks); - } else { - src = src_chunks+i; - } - - if (src == NULL || AreChunksEqual(tgt_chunks+i, src)) { - ChangeDeflateChunkToNormal(tgt_chunks+i); - if (src) { - ChangeDeflateChunkToNormal(src); - } - } - } - } - - // Merging neighboring normal chunks. - if (zip_mode) { - // For zips, we only need to do this to the target: deflated - // chunks are matched via filename, and normal chunks are patched - // using the entire source file as the source. - MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); - } else { - // For images, we need to maintain the parallel structure of the - // chunk lists, so do the merging in both the source and target - // lists. - MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); - MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); - if (num_src_chunks != num_tgt_chunks) { - // This shouldn't happen. - printf("merging normal chunks went awry\n"); - return 1; - } - } - - // Compute bsdiff patches for each chunk's data (the uncompressed - // data, in the case of deflate chunks). - - DumpChunks(src_chunks, num_src_chunks); - - printf("Construct patches for %d chunks...\n", num_tgt_chunks); - unsigned char** patch_data = malloc(num_tgt_chunks * sizeof(unsigned char*)); - size_t* patch_size = malloc(num_tgt_chunks * sizeof(size_t)); - for (i = 0; i < num_tgt_chunks; ++i) { - if (zip_mode) { - ImageChunk* src; - if (tgt_chunks[i].type == CHUNK_DEFLATE && - (src = FindChunkByName(tgt_chunks[i].filename, src_chunks, - num_src_chunks))) { - patch_data[i] = MakePatch(src, tgt_chunks+i, patch_size+i); - } else { - patch_data[i] = MakePatch(src_chunks, tgt_chunks+i, patch_size+i); - } - } else { - if (i == 1 && bonus_data) { - printf(" using %d bytes of bonus data for chunk %d\n", bonus_size, i); - src_chunks[i].data = realloc(src_chunks[i].data, src_chunks[i].len + bonus_size); - memcpy(src_chunks[i].data+src_chunks[i].len, bonus_data, bonus_size); - src_chunks[i].len += bonus_size; - } - - patch_data[i] = MakePatch(src_chunks+i, tgt_chunks+i, patch_size+i); - } - printf("patch %3d is %d bytes (of %d)\n", - i, patch_size[i], tgt_chunks[i].source_len); - } - - // Figure out how big the imgdiff file header is going to be, so - // that we can correctly compute the offset of each bsdiff patch - // within the file. - - size_t total_header_size = 12; - for (i = 0; i < num_tgt_chunks; ++i) { - total_header_size += 4; - switch (tgt_chunks[i].type) { - case CHUNK_NORMAL: - total_header_size += 8*3; - break; - case CHUNK_DEFLATE: - total_header_size += 8*5 + 4*5; - break; - case CHUNK_RAW: - total_header_size += 4 + patch_size[i]; - break; - } - } - - size_t offset = total_header_size; - - FILE* f = fopen(argv[3], "wb"); - - // Write out the headers. - - fwrite("IMGDIFF2", 1, 8, f); - Write4(num_tgt_chunks, f); - for (i = 0; i < num_tgt_chunks; ++i) { - Write4(tgt_chunks[i].type, f); - - switch (tgt_chunks[i].type) { - case CHUNK_NORMAL: - printf("chunk %3d: normal (%10d, %10d) %10d\n", i, - tgt_chunks[i].start, tgt_chunks[i].len, patch_size[i]); - Write8(tgt_chunks[i].source_start, f); - Write8(tgt_chunks[i].source_len, f); - Write8(offset, f); - offset += patch_size[i]; - break; - - case CHUNK_DEFLATE: - printf("chunk %3d: deflate (%10d, %10d) %10d %s\n", i, - tgt_chunks[i].start, tgt_chunks[i].deflate_len, patch_size[i], - tgt_chunks[i].filename); - Write8(tgt_chunks[i].source_start, f); - Write8(tgt_chunks[i].source_len, f); - Write8(offset, f); - Write8(tgt_chunks[i].source_uncompressed_len, f); - Write8(tgt_chunks[i].len, f); - Write4(tgt_chunks[i].level, f); - Write4(tgt_chunks[i].method, f); - Write4(tgt_chunks[i].windowBits, f); - Write4(tgt_chunks[i].memLevel, f); - Write4(tgt_chunks[i].strategy, f); - offset += patch_size[i]; - break; - - case CHUNK_RAW: - printf("chunk %3d: raw (%10d, %10d)\n", i, - tgt_chunks[i].start, tgt_chunks[i].len); - Write4(patch_size[i], f); - fwrite(patch_data[i], 1, patch_size[i], f); - break; - } - } - - // Append each chunk's bsdiff patch, in order. - - for (i = 0; i < num_tgt_chunks; ++i) { - if (tgt_chunks[i].type != CHUNK_RAW) { - fwrite(patch_data[i], 1, patch_size[i], f); - } - } - - fclose(f); - - return 0; -} diff --git a/applypatch/imgdiff.cpp b/applypatch/imgdiff.cpp new file mode 100644 index 000000000..f22502e38 --- /dev/null +++ b/applypatch/imgdiff.cpp @@ -0,0 +1,1083 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * This program constructs binary patches for images -- such as boot.img + * and recovery.img -- that consist primarily of large chunks of gzipped + * data interspersed with uncompressed data. Doing a naive bsdiff of + * these files is not useful because small changes in the data lead to + * large changes in the compressed bitstream; bsdiff patches of gzipped + * data are typically as large as the data itself. + * + * To patch these usefully, we break the source and target images up into + * chunks of two types: "normal" and "gzip". Normal chunks are simply + * patched using a plain bsdiff. Gzip chunks are first expanded, then a + * bsdiff is applied to the uncompressed data, then the patched data is + * gzipped using the same encoder parameters. Patched chunks are + * concatenated together to create the output file; the output image + * should be *exactly* the same series of bytes as the target image used + * originally to generate the patch. + * + * To work well with this tool, the gzipped sections of the target + * image must have been generated using the same deflate encoder that + * is available in applypatch, namely, the one in the zlib library. + * In practice this means that images should be compressed using the + * "minigzip" tool included in the zlib distribution, not the GNU gzip + * program. + * + * An "imgdiff" patch consists of a header describing the chunk structure + * of the file and any encoding parameters needed for the gzipped + * chunks, followed by N bsdiff patches, one per chunk. + * + * For a diff to be generated, the source and target images must have the + * same "chunk" structure: that is, the same number of gzipped and normal + * chunks in the same order. Android boot and recovery images currently + * consist of five chunks: a small normal header, a gzipped kernel, a + * small normal section, a gzipped ramdisk, and finally a small normal + * footer. + * + * Caveats: we locate gzipped sections within the source and target + * images by searching for the byte sequence 1f8b0800: 1f8b is the gzip + * magic number; 08 specifies the "deflate" encoding [the only encoding + * supported by the gzip standard]; and 00 is the flags byte. We do not + * currently support any extra header fields (which would be indicated by + * a nonzero flags byte). We also don't handle the case when that byte + * sequence appears spuriously in the file. (Note that it would have to + * occur spuriously within a normal chunk to be a problem.) + * + * + * The imgdiff patch header looks like this: + * + * "IMGDIFF1" (8) [magic number and version] + * chunk count (4) + * for each chunk: + * chunk type (4) [CHUNK_{NORMAL, GZIP, DEFLATE, RAW}] + * if chunk type == CHUNK_NORMAL: + * source start (8) + * source len (8) + * bsdiff patch offset (8) [from start of patch file] + * if chunk type == CHUNK_GZIP: (version 1 only) + * source start (8) + * source len (8) + * bsdiff patch offset (8) [from start of patch file] + * source expanded len (8) [size of uncompressed source] + * target expected len (8) [size of uncompressed target] + * gzip level (4) + * method (4) + * windowBits (4) + * memLevel (4) + * strategy (4) + * gzip header len (4) + * gzip header (gzip header len) + * gzip footer (8) + * if chunk type == CHUNK_DEFLATE: (version 2 only) + * source start (8) + * source len (8) + * bsdiff patch offset (8) [from start of patch file] + * source expanded len (8) [size of uncompressed source] + * target expected len (8) [size of uncompressed target] + * gzip level (4) + * method (4) + * windowBits (4) + * memLevel (4) + * strategy (4) + * if chunk type == RAW: (version 2 only) + * target len (4) + * data (target len) + * + * All integers are little-endian. "source start" and "source len" + * specify the section of the input image that comprises this chunk, + * including the gzip header and footer for gzip chunks. "source + * expanded len" is the size of the uncompressed source data. "target + * expected len" is the size of the uncompressed data after applying + * the bsdiff patch. The next five parameters specify the zlib + * parameters to be used when compressing the patched data, and the + * next three specify the header and footer to be wrapped around the + * compressed data to create the output chunk (so that header contents + * like the timestamp are recreated exactly). + * + * After the header there are 'chunk count' bsdiff patches; the offset + * of each from the beginning of the file is specified in the header. + * + * This tool can take an optional file of "bonus data". This is an + * extra file of data that is appended to chunk #1 after it is + * compressed (it must be a CHUNK_DEFLATE chunk). The same file must + * be available (and passed to applypatch with -b) when applying the + * patch. This is used to reduce the size of recovery-from-boot + * patches by combining the boot image with recovery ramdisk + * information that is stored on the system partition. + */ + +#include <errno.h> +#include <inttypes.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <unistd.h> +#include <sys/types.h> + +#include "zlib.h" +#include "imgdiff.h" +#include "utils.h" + +typedef struct { + int type; // CHUNK_NORMAL, CHUNK_DEFLATE + size_t start; // offset of chunk in original image file + + size_t len; + unsigned char* data; // data to be patched (uncompressed, for deflate chunks) + + size_t source_start; + size_t source_len; + + off_t* I; // used by bsdiff + + // --- for CHUNK_DEFLATE chunks only: --- + + // original (compressed) deflate data + size_t deflate_len; + unsigned char* deflate_data; + + char* filename; // used for zip entries + + // deflate encoder parameters + int level, method, windowBits, memLevel, strategy; + + size_t source_uncompressed_len; +} ImageChunk; + +typedef struct { + int data_offset; + int deflate_len; + int uncomp_len; + char* filename; +} ZipFileEntry; + +static int fileentry_compare(const void* a, const void* b) { + int ao = ((ZipFileEntry*)a)->data_offset; + int bo = ((ZipFileEntry*)b)->data_offset; + if (ao < bo) { + return -1; + } else if (ao > bo) { + return 1; + } else { + return 0; + } +} + +// from bsdiff.c +int bsdiff(u_char* old, off_t oldsize, off_t** IP, u_char* newdata, off_t newsize, + const char* patch_filename); + +unsigned char* ReadZip(const char* filename, + int* num_chunks, ImageChunk** chunks, + int include_pseudo_chunk) { + struct stat st; + if (stat(filename, &st) != 0) { + printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); + return NULL; + } + + size_t sz = static_cast<size_t>(st.st_size); + unsigned char* img = reinterpret_cast<unsigned char*>(malloc(sz)); + FILE* f = fopen(filename, "rb"); + if (fread(img, 1, sz, f) != sz) { + printf("failed to read \"%s\" %s\n", filename, strerror(errno)); + fclose(f); + return NULL; + } + fclose(f); + + // look for the end-of-central-directory record. + + int i; + for (i = st.st_size-20; i >= 0 && i > st.st_size - 65600; --i) { + if (img[i] == 0x50 && img[i+1] == 0x4b && + img[i+2] == 0x05 && img[i+3] == 0x06) { + break; + } + } + // double-check: this archive consists of a single "disk" + if (!(img[i+4] == 0 && img[i+5] == 0 && img[i+6] == 0 && img[i+7] == 0)) { + printf("can't process multi-disk archive\n"); + return NULL; + } + + int cdcount = Read2(img+i+8); + int cdoffset = Read4(img+i+16); + + ZipFileEntry* temp_entries = reinterpret_cast<ZipFileEntry*>(malloc( + cdcount * sizeof(ZipFileEntry))); + int entrycount = 0; + + unsigned char* cd = img+cdoffset; + for (i = 0; i < cdcount; ++i) { + if (!(cd[0] == 0x50 && cd[1] == 0x4b && cd[2] == 0x01 && cd[3] == 0x02)) { + printf("bad central directory entry %d\n", i); + return NULL; + } + + int clen = Read4(cd+20); // compressed len + int ulen = Read4(cd+24); // uncompressed len + int nlen = Read2(cd+28); // filename len + int xlen = Read2(cd+30); // extra field len + int mlen = Read2(cd+32); // file comment len + int hoffset = Read4(cd+42); // local header offset + + char* filename = reinterpret_cast<char*>(malloc(nlen+1)); + memcpy(filename, cd+46, nlen); + filename[nlen] = '\0'; + + int method = Read2(cd+10); + + cd += 46 + nlen + xlen + mlen; + + if (method != 8) { // 8 == deflate + free(filename); + continue; + } + + unsigned char* lh = img + hoffset; + + if (!(lh[0] == 0x50 && lh[1] == 0x4b && lh[2] == 0x03 && lh[3] == 0x04)) { + printf("bad local file header entry %d\n", i); + return NULL; + } + + if (Read2(lh+26) != nlen || memcmp(lh+30, filename, nlen) != 0) { + printf("central dir filename doesn't match local header\n"); + return NULL; + } + + xlen = Read2(lh+28); // extra field len; might be different from CD entry? + + temp_entries[entrycount].data_offset = hoffset+30+nlen+xlen; + temp_entries[entrycount].deflate_len = clen; + temp_entries[entrycount].uncomp_len = ulen; + temp_entries[entrycount].filename = filename; + ++entrycount; + } + + qsort(temp_entries, entrycount, sizeof(ZipFileEntry), fileentry_compare); + +#if 0 + printf("found %d deflated entries\n", entrycount); + for (i = 0; i < entrycount; ++i) { + printf("off %10d len %10d unlen %10d %p %s\n", + temp_entries[i].data_offset, + temp_entries[i].deflate_len, + temp_entries[i].uncomp_len, + temp_entries[i].filename, + temp_entries[i].filename); + } +#endif + + *num_chunks = 0; + *chunks = reinterpret_cast<ImageChunk*>(malloc((entrycount*2+2) * sizeof(ImageChunk))); + ImageChunk* curr = *chunks; + + if (include_pseudo_chunk) { + curr->type = CHUNK_NORMAL; + curr->start = 0; + curr->len = st.st_size; + curr->data = img; + curr->filename = NULL; + curr->I = NULL; + ++curr; + ++*num_chunks; + } + + int pos = 0; + int nextentry = 0; + + while (pos < st.st_size) { + if (nextentry < entrycount && pos == temp_entries[nextentry].data_offset) { + curr->type = CHUNK_DEFLATE; + curr->start = pos; + curr->deflate_len = temp_entries[nextentry].deflate_len; + curr->deflate_data = img + pos; + curr->filename = temp_entries[nextentry].filename; + curr->I = NULL; + + curr->len = temp_entries[nextentry].uncomp_len; + curr->data = reinterpret_cast<unsigned char*>(malloc(curr->len)); + + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = curr->deflate_len; + strm.next_in = curr->deflate_data; + + // -15 means we are decoding a 'raw' deflate stream; zlib will + // not expect zlib headers. + int ret = inflateInit2(&strm, -15); + + strm.avail_out = curr->len; + strm.next_out = curr->data; + ret = inflate(&strm, Z_NO_FLUSH); + if (ret != Z_STREAM_END) { + printf("failed to inflate \"%s\"; %d\n", curr->filename, ret); + return NULL; + } + + inflateEnd(&strm); + + pos += curr->deflate_len; + ++nextentry; + ++*num_chunks; + ++curr; + continue; + } + + // use a normal chunk to take all the data up to the start of the + // next deflate section. + + curr->type = CHUNK_NORMAL; + curr->start = pos; + if (nextentry < entrycount) { + curr->len = temp_entries[nextentry].data_offset - pos; + } else { + curr->len = st.st_size - pos; + } + curr->data = img + pos; + curr->filename = NULL; + curr->I = NULL; + pos += curr->len; + + ++*num_chunks; + ++curr; + } + + free(temp_entries); + return img; +} + +/* + * Read the given file and break it up into chunks, putting the number + * of chunks and their info in *num_chunks and **chunks, + * respectively. Returns a malloc'd block of memory containing the + * contents of the file; various pointers in the output chunk array + * will point into this block of memory. The caller should free the + * return value when done with all the chunks. Returns NULL on + * failure. + */ +unsigned char* ReadImage(const char* filename, + int* num_chunks, ImageChunk** chunks) { + struct stat st; + if (stat(filename, &st) != 0) { + printf("failed to stat \"%s\": %s\n", filename, strerror(errno)); + return NULL; + } + + size_t sz = static_cast<size_t>(st.st_size); + unsigned char* img = reinterpret_cast<unsigned char*>(malloc(sz + 4)); + FILE* f = fopen(filename, "rb"); + if (fread(img, 1, sz, f) != sz) { + printf("failed to read \"%s\" %s\n", filename, strerror(errno)); + fclose(f); + return NULL; + } + fclose(f); + + // append 4 zero bytes to the data so we can always search for the + // four-byte string 1f8b0800 starting at any point in the actual + // file data, without special-casing the end of the data. + memset(img+sz, 0, 4); + + size_t pos = 0; + + *num_chunks = 0; + *chunks = NULL; + + while (pos < sz) { + unsigned char* p = img+pos; + + bool processed_deflate = false; + if (sz - pos >= 4 && + p[0] == 0x1f && p[1] == 0x8b && + p[2] == 0x08 && // deflate compression + p[3] == 0x00) { // no header flags + // 'pos' is the offset of the start of a gzip chunk. + size_t chunk_offset = pos; + + *num_chunks += 3; + *chunks = reinterpret_cast<ImageChunk*>(realloc(*chunks, + *num_chunks * sizeof(ImageChunk))); + ImageChunk* curr = *chunks + (*num_chunks-3); + + // create a normal chunk for the header. + curr->start = pos; + curr->type = CHUNK_NORMAL; + curr->len = GZIP_HEADER_LEN; + curr->data = p; + curr->I = NULL; + + pos += curr->len; + p += curr->len; + ++curr; + + curr->type = CHUNK_DEFLATE; + curr->filename = NULL; + curr->I = NULL; + + // We must decompress this chunk in order to discover where it + // ends, and so we can put the uncompressed data and its length + // into curr->data and curr->len. + + size_t allocated = 32768; + curr->len = 0; + curr->data = reinterpret_cast<unsigned char*>(malloc(allocated)); + curr->start = pos; + curr->deflate_data = p; + + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = sz - pos; + strm.next_in = p; + + // -15 means we are decoding a 'raw' deflate stream; zlib will + // not expect zlib headers. + int ret = inflateInit2(&strm, -15); + + do { + strm.avail_out = allocated - curr->len; + strm.next_out = curr->data + curr->len; + ret = inflate(&strm, Z_NO_FLUSH); + if (ret < 0) { + if (!processed_deflate) { + // This is the first chunk, assume that it's just a spurious + // gzip header instead of a real one. + break; + } + printf("Error: inflate failed [%s] at file offset [%zu]\n" + "imgdiff only supports gzip kernel compression," + " did you try CONFIG_KERNEL_LZO?\n", + strm.msg, chunk_offset); + free(img); + return NULL; + } + curr->len = allocated - strm.avail_out; + if (strm.avail_out == 0) { + allocated *= 2; + curr->data = reinterpret_cast<unsigned char*>(realloc(curr->data, allocated)); + } + processed_deflate = true; + } while (ret != Z_STREAM_END); + + curr->deflate_len = sz - strm.avail_in - pos; + inflateEnd(&strm); + pos += curr->deflate_len; + p += curr->deflate_len; + ++curr; + + // create a normal chunk for the footer + + curr->type = CHUNK_NORMAL; + curr->start = pos; + curr->len = GZIP_FOOTER_LEN; + curr->data = img+pos; + curr->I = NULL; + + pos += curr->len; + p += curr->len; + ++curr; + + // The footer (that we just skipped over) contains the size of + // the uncompressed data. Double-check to make sure that it + // matches the size of the data we got when we actually did + // the decompression. + size_t footer_size = Read4(p-4); + if (footer_size != curr[-2].len) { + printf("Error: footer size %zu != decompressed size %zu\n", + footer_size, curr[-2].len); + free(img); + return NULL; + } + } else { + // Reallocate the list for every chunk; we expect the number of + // chunks to be small (5 for typical boot and recovery images). + ++*num_chunks; + *chunks = reinterpret_cast<ImageChunk*>(realloc(*chunks, *num_chunks * sizeof(ImageChunk))); + ImageChunk* curr = *chunks + (*num_chunks-1); + curr->start = pos; + curr->I = NULL; + + // 'pos' is not the offset of the start of a gzip chunk, so scan + // forward until we find a gzip header. + curr->type = CHUNK_NORMAL; + curr->data = p; + + for (curr->len = 0; curr->len < (sz - pos); ++curr->len) { + if (p[curr->len] == 0x1f && + p[curr->len+1] == 0x8b && + p[curr->len+2] == 0x08 && + p[curr->len+3] == 0x00) { + break; + } + } + pos += curr->len; + } + } + + return img; +} + +#define BUFFER_SIZE 32768 + +/* + * Takes the uncompressed data stored in the chunk, compresses it + * using the zlib parameters stored in the chunk, and checks that it + * matches exactly the compressed data we started with (also stored in + * the chunk). Return 0 on success. + */ +int TryReconstruction(ImageChunk* chunk, unsigned char* out) { + size_t p = 0; + +#if 0 + printf("trying %d %d %d %d %d\n", + chunk->level, chunk->method, chunk->windowBits, + chunk->memLevel, chunk->strategy); +#endif + + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = chunk->len; + strm.next_in = chunk->data; + int ret; + ret = deflateInit2(&strm, chunk->level, chunk->method, chunk->windowBits, + chunk->memLevel, chunk->strategy); + do { + strm.avail_out = BUFFER_SIZE; + strm.next_out = out; + ret = deflate(&strm, Z_FINISH); + size_t have = BUFFER_SIZE - strm.avail_out; + + if (memcmp(out, chunk->deflate_data+p, have) != 0) { + // mismatch; data isn't the same. + deflateEnd(&strm); + return -1; + } + p += have; + } while (ret != Z_STREAM_END); + deflateEnd(&strm); + if (p != chunk->deflate_len) { + // mismatch; ran out of data before we should have. + return -1; + } + return 0; +} + +/* + * Verify that we can reproduce exactly the same compressed data that + * we started with. Sets the level, method, windowBits, memLevel, and + * strategy fields in the chunk to the encoding parameters needed to + * produce the right output. Returns 0 on success. + */ +int ReconstructDeflateChunk(ImageChunk* chunk) { + if (chunk->type != CHUNK_DEFLATE) { + printf("attempt to reconstruct non-deflate chunk\n"); + return -1; + } + + size_t p = 0; + unsigned char* out = reinterpret_cast<unsigned char*>(malloc(BUFFER_SIZE)); + + // We only check two combinations of encoder parameters: level 6 + // (the default) and level 9 (the maximum). + for (chunk->level = 6; chunk->level <= 9; chunk->level += 3) { + chunk->windowBits = -15; // 32kb window; negative to indicate a raw stream. + chunk->memLevel = 8; // the default value. + chunk->method = Z_DEFLATED; + chunk->strategy = Z_DEFAULT_STRATEGY; + + if (TryReconstruction(chunk, out) == 0) { + free(out); + return 0; + } + } + + free(out); + return -1; +} + +/* + * Given source and target chunks, compute a bsdiff patch between them + * by running bsdiff in a subprocess. Return the patch data, placing + * its length in *size. Return NULL on failure. We expect the bsdiff + * program to be in the path. + */ +unsigned char* MakePatch(ImageChunk* src, ImageChunk* tgt, size_t* size) { + if (tgt->type == CHUNK_NORMAL) { + if (tgt->len <= 160) { + tgt->type = CHUNK_RAW; + *size = tgt->len; + return tgt->data; + } + } + + char ptemp[] = "/tmp/imgdiff-patch-XXXXXX"; + int fd = mkstemp(ptemp); + + if (fd == -1) { + printf("MakePatch failed to create a temporary file: %s\n", + strerror(errno)); + return NULL; + } + close(fd); // temporary file is created and we don't need its file + // descriptor + + int r = bsdiff(src->data, src->len, &(src->I), tgt->data, tgt->len, ptemp); + if (r != 0) { + printf("bsdiff() failed: %d\n", r); + return NULL; + } + + struct stat st; + if (stat(ptemp, &st) != 0) { + printf("failed to stat patch file %s: %s\n", + ptemp, strerror(errno)); + return NULL; + } + + size_t sz = static_cast<size_t>(st.st_size); + // TODO: Memory leak on error return. + unsigned char* data = reinterpret_cast<unsigned char*>(malloc(sz)); + + if (tgt->type == CHUNK_NORMAL && tgt->len <= sz) { + unlink(ptemp); + + tgt->type = CHUNK_RAW; + *size = tgt->len; + return tgt->data; + } + + *size = sz; + + FILE* f = fopen(ptemp, "rb"); + if (f == NULL) { + printf("failed to open patch %s: %s\n", ptemp, strerror(errno)); + return NULL; + } + if (fread(data, 1, sz, f) != sz) { + printf("failed to read patch %s: %s\n", ptemp, strerror(errno)); + return NULL; + } + fclose(f); + + unlink(ptemp); + + tgt->source_start = src->start; + switch (tgt->type) { + case CHUNK_NORMAL: + tgt->source_len = src->len; + break; + case CHUNK_DEFLATE: + tgt->source_len = src->deflate_len; + tgt->source_uncompressed_len = src->len; + break; + } + + return data; +} + +/* + * Cause a gzip chunk to be treated as a normal chunk (ie, as a blob + * of uninterpreted data). The resulting patch will likely be about + * as big as the target file, but it lets us handle the case of images + * where some gzip chunks are reconstructible but others aren't (by + * treating the ones that aren't as normal chunks). + */ +void ChangeDeflateChunkToNormal(ImageChunk* ch) { + if (ch->type != CHUNK_DEFLATE) return; + ch->type = CHUNK_NORMAL; + free(ch->data); + ch->data = ch->deflate_data; + ch->len = ch->deflate_len; +} + +/* + * Return true if the data in the chunk is identical (including the + * compressed representation, for gzip chunks). + */ +int AreChunksEqual(ImageChunk* a, ImageChunk* b) { + if (a->type != b->type) return 0; + + switch (a->type) { + case CHUNK_NORMAL: + return a->len == b->len && memcmp(a->data, b->data, a->len) == 0; + + case CHUNK_DEFLATE: + return a->deflate_len == b->deflate_len && + memcmp(a->deflate_data, b->deflate_data, a->deflate_len) == 0; + + default: + printf("unknown chunk type %d\n", a->type); + return 0; + } +} + +/* + * Look for runs of adjacent normal chunks and compress them down into + * a single chunk. (Such runs can be produced when deflate chunks are + * changed to normal chunks.) + */ +void MergeAdjacentNormalChunks(ImageChunk* chunks, int* num_chunks) { + int out = 0; + int in_start = 0, in_end; + while (in_start < *num_chunks) { + if (chunks[in_start].type != CHUNK_NORMAL) { + in_end = in_start+1; + } else { + // in_start is a normal chunk. Look for a run of normal chunks + // that constitute a solid block of data (ie, each chunk begins + // where the previous one ended). + for (in_end = in_start+1; + in_end < *num_chunks && chunks[in_end].type == CHUNK_NORMAL && + (chunks[in_end].start == + chunks[in_end-1].start + chunks[in_end-1].len && + chunks[in_end].data == + chunks[in_end-1].data + chunks[in_end-1].len); + ++in_end); + } + + if (in_end == in_start+1) { +#if 0 + printf("chunk %d is now %d\n", in_start, out); +#endif + if (out != in_start) { + memcpy(chunks+out, chunks+in_start, sizeof(ImageChunk)); + } + } else { +#if 0 + printf("collapse normal chunks %d-%d into %d\n", in_start, in_end-1, out); +#endif + + // Merge chunks [in_start, in_end-1] into one chunk. Since the + // data member of each chunk is just a pointer into an in-memory + // copy of the file, this can be done without recopying (the + // output chunk has the first chunk's start location and data + // pointer, and length equal to the sum of the input chunk + // lengths). + chunks[out].type = CHUNK_NORMAL; + chunks[out].start = chunks[in_start].start; + chunks[out].data = chunks[in_start].data; + chunks[out].len = chunks[in_end-1].len + + (chunks[in_end-1].start - chunks[in_start].start); + } + + ++out; + in_start = in_end; + } + *num_chunks = out; +} + +ImageChunk* FindChunkByName(const char* name, + ImageChunk* chunks, int num_chunks) { + int i; + for (i = 0; i < num_chunks; ++i) { + if (chunks[i].type == CHUNK_DEFLATE && chunks[i].filename && + strcmp(name, chunks[i].filename) == 0) { + return chunks+i; + } + } + return NULL; +} + +void DumpChunks(ImageChunk* chunks, int num_chunks) { + for (int i = 0; i < num_chunks; ++i) { + printf("chunk %d: type %d start %zu len %zu\n", + i, chunks[i].type, chunks[i].start, chunks[i].len); + } +} + +int main(int argc, char** argv) { + int zip_mode = 0; + + if (argc >= 2 && strcmp(argv[1], "-z") == 0) { + zip_mode = 1; + --argc; + ++argv; + } + + size_t bonus_size = 0; + unsigned char* bonus_data = NULL; + if (argc >= 3 && strcmp(argv[1], "-b") == 0) { + struct stat st; + if (stat(argv[2], &st) != 0) { + printf("failed to stat bonus file %s: %s\n", argv[2], strerror(errno)); + return 1; + } + bonus_size = st.st_size; + bonus_data = reinterpret_cast<unsigned char*>(malloc(bonus_size)); + FILE* f = fopen(argv[2], "rb"); + if (f == NULL) { + printf("failed to open bonus file %s: %s\n", argv[2], strerror(errno)); + return 1; + } + if (fread(bonus_data, 1, bonus_size, f) != bonus_size) { + printf("failed to read bonus file %s: %s\n", argv[2], strerror(errno)); + return 1; + } + fclose(f); + + argc -= 2; + argv += 2; + } + + if (argc != 4) { + usage: + printf("usage: %s [-z] [-b <bonus-file>] <src-img> <tgt-img> <patch-file>\n", + argv[0]); + return 2; + } + + int num_src_chunks; + ImageChunk* src_chunks; + int num_tgt_chunks; + ImageChunk* tgt_chunks; + int i; + + if (zip_mode) { + if (ReadZip(argv[1], &num_src_chunks, &src_chunks, 1) == NULL) { + printf("failed to break apart source zip file\n"); + return 1; + } + if (ReadZip(argv[2], &num_tgt_chunks, &tgt_chunks, 0) == NULL) { + printf("failed to break apart target zip file\n"); + return 1; + } + } else { + if (ReadImage(argv[1], &num_src_chunks, &src_chunks) == NULL) { + printf("failed to break apart source image\n"); + return 1; + } + if (ReadImage(argv[2], &num_tgt_chunks, &tgt_chunks) == NULL) { + printf("failed to break apart target image\n"); + return 1; + } + + // Verify that the source and target images have the same chunk + // structure (ie, the same sequence of deflate and normal chunks). + + if (!zip_mode) { + // Merge the gzip header and footer in with any adjacent + // normal chunks. + MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); + MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); + } + + if (num_src_chunks != num_tgt_chunks) { + printf("source and target don't have same number of chunks!\n"); + printf("source chunks:\n"); + DumpChunks(src_chunks, num_src_chunks); + printf("target chunks:\n"); + DumpChunks(tgt_chunks, num_tgt_chunks); + return 1; + } + for (i = 0; i < num_src_chunks; ++i) { + if (src_chunks[i].type != tgt_chunks[i].type) { + printf("source and target don't have same chunk " + "structure! (chunk %d)\n", i); + printf("source chunks:\n"); + DumpChunks(src_chunks, num_src_chunks); + printf("target chunks:\n"); + DumpChunks(tgt_chunks, num_tgt_chunks); + return 1; + } + } + } + + for (i = 0; i < num_tgt_chunks; ++i) { + if (tgt_chunks[i].type == CHUNK_DEFLATE) { + // Confirm that given the uncompressed chunk data in the target, we + // can recompress it and get exactly the same bits as are in the + // input target image. If this fails, treat the chunk as a normal + // non-deflated chunk. + if (ReconstructDeflateChunk(tgt_chunks+i) < 0) { + printf("failed to reconstruct target deflate chunk %d [%s]; " + "treating as normal\n", i, tgt_chunks[i].filename); + ChangeDeflateChunkToNormal(tgt_chunks+i); + if (zip_mode) { + ImageChunk* src = FindChunkByName(tgt_chunks[i].filename, src_chunks, num_src_chunks); + if (src) { + ChangeDeflateChunkToNormal(src); + } + } else { + ChangeDeflateChunkToNormal(src_chunks+i); + } + continue; + } + + // If two deflate chunks are identical (eg, the kernel has not + // changed between two builds), treat them as normal chunks. + // This makes applypatch much faster -- it can apply a trivial + // patch to the compressed data, rather than uncompressing and + // recompressing to apply the trivial patch to the uncompressed + // data. + ImageChunk* src; + if (zip_mode) { + src = FindChunkByName(tgt_chunks[i].filename, src_chunks, num_src_chunks); + } else { + src = src_chunks+i; + } + + if (src == NULL || AreChunksEqual(tgt_chunks+i, src)) { + ChangeDeflateChunkToNormal(tgt_chunks+i); + if (src) { + ChangeDeflateChunkToNormal(src); + } + } + } + } + + // Merging neighboring normal chunks. + if (zip_mode) { + // For zips, we only need to do this to the target: deflated + // chunks are matched via filename, and normal chunks are patched + // using the entire source file as the source. + MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); + } else { + // For images, we need to maintain the parallel structure of the + // chunk lists, so do the merging in both the source and target + // lists. + MergeAdjacentNormalChunks(tgt_chunks, &num_tgt_chunks); + MergeAdjacentNormalChunks(src_chunks, &num_src_chunks); + if (num_src_chunks != num_tgt_chunks) { + // This shouldn't happen. + printf("merging normal chunks went awry\n"); + return 1; + } + } + + // Compute bsdiff patches for each chunk's data (the uncompressed + // data, in the case of deflate chunks). + + DumpChunks(src_chunks, num_src_chunks); + + printf("Construct patches for %d chunks...\n", num_tgt_chunks); + unsigned char** patch_data = reinterpret_cast<unsigned char**>(malloc( + num_tgt_chunks * sizeof(unsigned char*))); + size_t* patch_size = reinterpret_cast<size_t*>(malloc(num_tgt_chunks * sizeof(size_t))); + for (i = 0; i < num_tgt_chunks; ++i) { + if (zip_mode) { + ImageChunk* src; + if (tgt_chunks[i].type == CHUNK_DEFLATE && + (src = FindChunkByName(tgt_chunks[i].filename, src_chunks, + num_src_chunks))) { + patch_data[i] = MakePatch(src, tgt_chunks+i, patch_size+i); + } else { + patch_data[i] = MakePatch(src_chunks, tgt_chunks+i, patch_size+i); + } + } else { + if (i == 1 && bonus_data) { + printf(" using %zu bytes of bonus data for chunk %d\n", bonus_size, i); + src_chunks[i].data = reinterpret_cast<unsigned char*>(realloc(src_chunks[i].data, + src_chunks[i].len + bonus_size)); + memcpy(src_chunks[i].data+src_chunks[i].len, bonus_data, bonus_size); + src_chunks[i].len += bonus_size; + } + + patch_data[i] = MakePatch(src_chunks+i, tgt_chunks+i, patch_size+i); + } + printf("patch %3d is %zu bytes (of %zu)\n", + i, patch_size[i], tgt_chunks[i].source_len); + } + + // Figure out how big the imgdiff file header is going to be, so + // that we can correctly compute the offset of each bsdiff patch + // within the file. + + size_t total_header_size = 12; + for (i = 0; i < num_tgt_chunks; ++i) { + total_header_size += 4; + switch (tgt_chunks[i].type) { + case CHUNK_NORMAL: + total_header_size += 8*3; + break; + case CHUNK_DEFLATE: + total_header_size += 8*5 + 4*5; + break; + case CHUNK_RAW: + total_header_size += 4 + patch_size[i]; + break; + } + } + + size_t offset = total_header_size; + + FILE* f = fopen(argv[3], "wb"); + + // Write out the headers. + + fwrite("IMGDIFF2", 1, 8, f); + Write4(num_tgt_chunks, f); + for (i = 0; i < num_tgt_chunks; ++i) { + Write4(tgt_chunks[i].type, f); + + switch (tgt_chunks[i].type) { + case CHUNK_NORMAL: + printf("chunk %3d: normal (%10zu, %10zu) %10zu\n", i, + tgt_chunks[i].start, tgt_chunks[i].len, patch_size[i]); + Write8(tgt_chunks[i].source_start, f); + Write8(tgt_chunks[i].source_len, f); + Write8(offset, f); + offset += patch_size[i]; + break; + + case CHUNK_DEFLATE: + printf("chunk %3d: deflate (%10zu, %10zu) %10zu %s\n", i, + tgt_chunks[i].start, tgt_chunks[i].deflate_len, patch_size[i], + tgt_chunks[i].filename); + Write8(tgt_chunks[i].source_start, f); + Write8(tgt_chunks[i].source_len, f); + Write8(offset, f); + Write8(tgt_chunks[i].source_uncompressed_len, f); + Write8(tgt_chunks[i].len, f); + Write4(tgt_chunks[i].level, f); + Write4(tgt_chunks[i].method, f); + Write4(tgt_chunks[i].windowBits, f); + Write4(tgt_chunks[i].memLevel, f); + Write4(tgt_chunks[i].strategy, f); + offset += patch_size[i]; + break; + + case CHUNK_RAW: + printf("chunk %3d: raw (%10zu, %10zu)\n", i, + tgt_chunks[i].start, tgt_chunks[i].len); + Write4(patch_size[i], f); + fwrite(patch_data[i], 1, patch_size[i], f); + break; + } + } + + // Append each chunk's bsdiff patch, in order. + + for (i = 0; i < num_tgt_chunks; ++i) { + if (tgt_chunks[i].type != CHUNK_RAW) { + fwrite(patch_data[i], 1, patch_size[i], f); + } + } + + fclose(f); + + return 0; +} diff --git a/applypatch/imgpatch.c b/applypatch/imgpatch.c deleted file mode 100644 index 09b0a7397..000000000 --- a/applypatch/imgpatch.c +++ /dev/null @@ -1,234 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -// See imgdiff.c in this directory for a description of the patch file -// format. - -#include <stdio.h> -#include <sys/cdefs.h> -#include <sys/stat.h> -#include <errno.h> -#include <malloc.h> -#include <unistd.h> -#include <string.h> - -#include "zlib.h" -#include "mincrypt/sha.h" -#include "applypatch.h" -#include "imgdiff.h" -#include "utils.h" - -/* - * Apply the patch given in 'patch_filename' to the source data given - * by (old_data, old_size). Write the patched output to the 'output' - * file, and update the SHA context with the output data as well. - * Return 0 on success. - */ -int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size __unused, - const Value* patch, - SinkFn sink, void* token, SHA_CTX* ctx, - const Value* bonus_data) { - ssize_t pos = 12; - char* header = patch->data; - if (patch->size < 12) { - printf("patch too short to contain header\n"); - return -1; - } - - // IMGDIFF2 uses CHUNK_NORMAL, CHUNK_DEFLATE, and CHUNK_RAW. - // (IMGDIFF1, which is no longer supported, used CHUNK_NORMAL and - // CHUNK_GZIP.) - if (memcmp(header, "IMGDIFF2", 8) != 0) { - printf("corrupt patch file header (magic number)\n"); - return -1; - } - - int num_chunks = Read4(header+8); - - int i; - for (i = 0; i < num_chunks; ++i) { - // each chunk's header record starts with 4 bytes. - if (pos + 4 > patch->size) { - printf("failed to read chunk %d record\n", i); - return -1; - } - int type = Read4(patch->data + pos); - pos += 4; - - if (type == CHUNK_NORMAL) { - char* normal_header = patch->data + pos; - pos += 24; - if (pos > patch->size) { - printf("failed to read chunk %d normal header data\n", i); - return -1; - } - - size_t src_start = Read8(normal_header); - size_t src_len = Read8(normal_header+8); - size_t patch_offset = Read8(normal_header+16); - - ApplyBSDiffPatch(old_data + src_start, src_len, - patch, patch_offset, sink, token, ctx); - } else if (type == CHUNK_RAW) { - char* raw_header = patch->data + pos; - pos += 4; - if (pos > patch->size) { - printf("failed to read chunk %d raw header data\n", i); - return -1; - } - - ssize_t data_len = Read4(raw_header); - - if (pos + data_len > patch->size) { - printf("failed to read chunk %d raw data\n", i); - return -1; - } - if (ctx) SHA_update(ctx, patch->data + pos, data_len); - if (sink((unsigned char*)patch->data + pos, - data_len, token) != data_len) { - printf("failed to write chunk %d raw data\n", i); - return -1; - } - pos += data_len; - } else if (type == CHUNK_DEFLATE) { - // deflate chunks have an additional 60 bytes in their chunk header. - char* deflate_header = patch->data + pos; - pos += 60; - if (pos > patch->size) { - printf("failed to read chunk %d deflate header data\n", i); - return -1; - } - - size_t src_start = Read8(deflate_header); - size_t src_len = Read8(deflate_header+8); - size_t patch_offset = Read8(deflate_header+16); - size_t expanded_len = Read8(deflate_header+24); - size_t target_len = Read8(deflate_header+32); - int level = Read4(deflate_header+40); - int method = Read4(deflate_header+44); - int windowBits = Read4(deflate_header+48); - int memLevel = Read4(deflate_header+52); - int strategy = Read4(deflate_header+56); - - // Decompress the source data; the chunk header tells us exactly - // how big we expect it to be when decompressed. - - // Note: expanded_len will include the bonus data size if - // the patch was constructed with bonus data. The - // deflation will come up 'bonus_size' bytes short; these - // must be appended from the bonus_data value. - size_t bonus_size = (i == 1 && bonus_data != NULL) ? bonus_data->size : 0; - - unsigned char* expanded_source = malloc(expanded_len); - if (expanded_source == NULL) { - printf("failed to allocate %zu bytes for expanded_source\n", - expanded_len); - return -1; - } - - z_stream strm; - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = src_len; - strm.next_in = (unsigned char*)(old_data + src_start); - strm.avail_out = expanded_len; - strm.next_out = expanded_source; - - int ret; - ret = inflateInit2(&strm, -15); - if (ret != Z_OK) { - printf("failed to init source inflation: %d\n", ret); - return -1; - } - - // Because we've provided enough room to accommodate the output - // data, we expect one call to inflate() to suffice. - ret = inflate(&strm, Z_SYNC_FLUSH); - if (ret != Z_STREAM_END) { - printf("source inflation returned %d\n", ret); - return -1; - } - // We should have filled the output buffer exactly, except - // for the bonus_size. - if (strm.avail_out != bonus_size) { - printf("source inflation short by %zu bytes\n", strm.avail_out-bonus_size); - return -1; - } - inflateEnd(&strm); - - if (bonus_size) { - memcpy(expanded_source + (expanded_len - bonus_size), - bonus_data->data, bonus_size); - } - - // Next, apply the bsdiff patch (in memory) to the uncompressed - // data. - unsigned char* uncompressed_target_data; - ssize_t uncompressed_target_size; - if (ApplyBSDiffPatchMem(expanded_source, expanded_len, - patch, patch_offset, - &uncompressed_target_data, - &uncompressed_target_size) != 0) { - return -1; - } - - // Now compress the target data and append it to the output. - - // we're done with the expanded_source data buffer, so we'll - // reuse that memory to receive the output of deflate. - unsigned char* temp_data = expanded_source; - ssize_t temp_size = expanded_len; - if (temp_size < 32768) { - // ... unless the buffer is too small, in which case we'll - // allocate a fresh one. - free(temp_data); - temp_data = malloc(32768); - temp_size = 32768; - } - - // now the deflate stream - strm.zalloc = Z_NULL; - strm.zfree = Z_NULL; - strm.opaque = Z_NULL; - strm.avail_in = uncompressed_target_size; - strm.next_in = uncompressed_target_data; - ret = deflateInit2(&strm, level, method, windowBits, memLevel, strategy); - do { - strm.avail_out = temp_size; - strm.next_out = temp_data; - ret = deflate(&strm, Z_FINISH); - ssize_t have = temp_size - strm.avail_out; - - if (sink(temp_data, have, token) != have) { - printf("failed to write %ld compressed bytes to output\n", - (long)have); - return -1; - } - if (ctx) SHA_update(ctx, temp_data, have); - } while (ret != Z_STREAM_END); - deflateEnd(&strm); - - free(temp_data); - free(uncompressed_target_data); - } else { - printf("patch chunk %d is unknown type %d\n", i, type); - return -1; - } - } - - return 0; -} diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp new file mode 100644 index 000000000..8824038ea --- /dev/null +++ b/applypatch/imgpatch.cpp @@ -0,0 +1,240 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// See imgdiff.c in this directory for a description of the patch file +// format. + +#include <stdio.h> +#include <sys/cdefs.h> +#include <sys/stat.h> +#include <errno.h> +#include <unistd.h> +#include <string.h> + +#include <vector> + +#include "zlib.h" +#include "openssl/sha.h" +#include "applypatch.h" +#include "imgdiff.h" +#include "utils.h" + +int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, + const unsigned char* patch_data, ssize_t patch_size, + SinkFn sink, void* token) { + Value patch = {VAL_BLOB, patch_size, + reinterpret_cast<char*>(const_cast<unsigned char*>(patch_data))}; + return ApplyImagePatch( + old_data, old_size, &patch, sink, token, nullptr, nullptr); +} + +/* + * Apply the patch given in 'patch_filename' to the source data given + * by (old_data, old_size). Write the patched output to the 'output' + * file, and update the SHA context with the output data as well. + * Return 0 on success. + */ +int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, + const Value* patch, + SinkFn sink, void* token, SHA_CTX* ctx, + const Value* bonus_data) { + ssize_t pos = 12; + char* header = patch->data; + if (patch->size < 12) { + printf("patch too short to contain header\n"); + return -1; + } + + // IMGDIFF2 uses CHUNK_NORMAL, CHUNK_DEFLATE, and CHUNK_RAW. + // (IMGDIFF1, which is no longer supported, used CHUNK_NORMAL and + // CHUNK_GZIP.) + if (memcmp(header, "IMGDIFF2", 8) != 0) { + printf("corrupt patch file header (magic number)\n"); + return -1; + } + + int num_chunks = Read4(header+8); + + int i; + for (i = 0; i < num_chunks; ++i) { + // each chunk's header record starts with 4 bytes. + if (pos + 4 > patch->size) { + printf("failed to read chunk %d record\n", i); + return -1; + } + int type = Read4(patch->data + pos); + pos += 4; + + if (type == CHUNK_NORMAL) { + char* normal_header = patch->data + pos; + pos += 24; + if (pos > patch->size) { + printf("failed to read chunk %d normal header data\n", i); + return -1; + } + + size_t src_start = Read8(normal_header); + size_t src_len = Read8(normal_header+8); + size_t patch_offset = Read8(normal_header+16); + + if (src_start + src_len > static_cast<size_t>(old_size)) { + printf("source data too short\n"); + return -1; + } + ApplyBSDiffPatch(old_data + src_start, src_len, + patch, patch_offset, sink, token, ctx); + } else if (type == CHUNK_RAW) { + char* raw_header = patch->data + pos; + pos += 4; + if (pos > patch->size) { + printf("failed to read chunk %d raw header data\n", i); + return -1; + } + + ssize_t data_len = Read4(raw_header); + + if (pos + data_len > patch->size) { + printf("failed to read chunk %d raw data\n", i); + return -1; + } + if (ctx) SHA1_Update(ctx, patch->data + pos, data_len); + if (sink((unsigned char*)patch->data + pos, + data_len, token) != data_len) { + printf("failed to write chunk %d raw data\n", i); + return -1; + } + pos += data_len; + } else if (type == CHUNK_DEFLATE) { + // deflate chunks have an additional 60 bytes in their chunk header. + char* deflate_header = patch->data + pos; + pos += 60; + if (pos > patch->size) { + printf("failed to read chunk %d deflate header data\n", i); + return -1; + } + + size_t src_start = Read8(deflate_header); + size_t src_len = Read8(deflate_header+8); + size_t patch_offset = Read8(deflate_header+16); + size_t expanded_len = Read8(deflate_header+24); + int level = Read4(deflate_header+40); + int method = Read4(deflate_header+44); + int windowBits = Read4(deflate_header+48); + int memLevel = Read4(deflate_header+52); + int strategy = Read4(deflate_header+56); + + if (src_start + src_len > static_cast<size_t>(old_size)) { + printf("source data too short\n"); + return -1; + } + + // Decompress the source data; the chunk header tells us exactly + // how big we expect it to be when decompressed. + + // Note: expanded_len will include the bonus data size if + // the patch was constructed with bonus data. The + // deflation will come up 'bonus_size' bytes short; these + // must be appended from the bonus_data value. + size_t bonus_size = (i == 1 && bonus_data != NULL) ? bonus_data->size : 0; + + std::vector<unsigned char> expanded_source(expanded_len); + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = src_len; + strm.next_in = (unsigned char*)(old_data + src_start); + strm.avail_out = expanded_len; + strm.next_out = expanded_source.data(); + + int ret; + ret = inflateInit2(&strm, -15); + if (ret != Z_OK) { + printf("failed to init source inflation: %d\n", ret); + return -1; + } + + // Because we've provided enough room to accommodate the output + // data, we expect one call to inflate() to suffice. + ret = inflate(&strm, Z_SYNC_FLUSH); + if (ret != Z_STREAM_END) { + printf("source inflation returned %d\n", ret); + return -1; + } + // We should have filled the output buffer exactly, except + // for the bonus_size. + if (strm.avail_out != bonus_size) { + printf("source inflation short by %zu bytes\n", strm.avail_out-bonus_size); + return -1; + } + inflateEnd(&strm); + + if (bonus_size) { + memcpy(expanded_source.data() + (expanded_len - bonus_size), + bonus_data->data, bonus_size); + } + + // Next, apply the bsdiff patch (in memory) to the uncompressed + // data. + std::vector<unsigned char> uncompressed_target_data; + if (ApplyBSDiffPatchMem(expanded_source.data(), expanded_len, + patch, patch_offset, + &uncompressed_target_data) != 0) { + return -1; + } + + // Now compress the target data and append it to the output. + + // we're done with the expanded_source data buffer, so we'll + // reuse that memory to receive the output of deflate. + if (expanded_source.size() < 32768U) { + expanded_source.resize(32768U); + } + std::vector<unsigned char>& temp_data = expanded_source; + + // now the deflate stream + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + strm.avail_in = uncompressed_target_data.size(); + strm.next_in = uncompressed_target_data.data(); + ret = deflateInit2(&strm, level, method, windowBits, memLevel, strategy); + if (ret != Z_OK) { + printf("failed to init uncompressed data deflation: %d\n", ret); + return -1; + } + do { + strm.avail_out = temp_data.size(); + strm.next_out = temp_data.data(); + ret = deflate(&strm, Z_FINISH); + ssize_t have = temp_data.size() - strm.avail_out; + + if (sink(temp_data.data(), have, token) != have) { + printf("failed to write %ld compressed bytes to output\n", + (long)have); + return -1; + } + if (ctx) SHA1_Update(ctx, temp_data.data(), have); + } while (ret != Z_STREAM_END); + deflateEnd(&strm); + } else { + printf("patch chunk %d is unknown type %d\n", i, type); + return -1; + } + } + + return 0; +} diff --git a/applypatch/include/applypatch/imgpatch.h b/applypatch/include/applypatch/imgpatch.h new file mode 100644 index 000000000..64d9aa9eb --- /dev/null +++ b/applypatch/include/applypatch/imgpatch.h @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _IMGPATCH_H +#define _IMGPATCH_H + +typedef ssize_t (*SinkFn)(const unsigned char*, ssize_t, void*); + +int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, + const unsigned char* patch_data, ssize_t patch_size, + SinkFn sink, void* token); + +#endif //_IMGPATCH_H diff --git a/applypatch/main.c b/applypatch/main.c deleted file mode 100644 index 8e9fe80ef..000000000 --- a/applypatch/main.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "applypatch.h" -#include "edify/expr.h" -#include "mincrypt/sha.h" - -int CheckMode(int argc, char** argv) { - if (argc < 3) { - return 2; - } - return applypatch_check(argv[2], argc-3, argv+3); -} - -int SpaceMode(int argc, char** argv) { - if (argc != 3) { - return 2; - } - char* endptr; - size_t bytes = strtol(argv[2], &endptr, 10); - if (bytes == 0 && endptr == argv[2]) { - printf("can't parse \"%s\" as byte count\n\n", argv[2]); - return 1; - } - return CacheSizeCheck(bytes); -} - -// Parse arguments (which should be of the form "<sha1>" or -// "<sha1>:<filename>" into the new parallel arrays *sha1s and -// *patches (loading file contents into the patches). Returns 0 on -// success. -static int ParsePatchArgs(int argc, char** argv, - char*** sha1s, Value*** patches, int* num_patches) { - *num_patches = argc; - *sha1s = malloc(*num_patches * sizeof(char*)); - *patches = malloc(*num_patches * sizeof(Value*)); - memset(*patches, 0, *num_patches * sizeof(Value*)); - - uint8_t digest[SHA_DIGEST_SIZE]; - - int i; - for (i = 0; i < *num_patches; ++i) { - char* colon = strchr(argv[i], ':'); - if (colon != NULL) { - *colon = '\0'; - ++colon; - } - - if (ParseSha1(argv[i], digest) != 0) { - printf("failed to parse sha1 \"%s\"\n", argv[i]); - return -1; - } - - (*sha1s)[i] = argv[i]; - if (colon == NULL) { - (*patches)[i] = NULL; - } else { - FileContents fc; - if (LoadFileContents(colon, &fc) != 0) { - goto abort; - } - (*patches)[i] = malloc(sizeof(Value)); - (*patches)[i]->type = VAL_BLOB; - (*patches)[i]->size = fc.size; - (*patches)[i]->data = (char*)fc.data; - } - } - - return 0; - - abort: - for (i = 0; i < *num_patches; ++i) { - Value* p = (*patches)[i]; - if (p != NULL) { - free(p->data); - free(p); - } - } - free(*sha1s); - free(*patches); - return -1; -} - -int PatchMode(int argc, char** argv) { - Value* bonus = NULL; - if (argc >= 3 && strcmp(argv[1], "-b") == 0) { - FileContents fc; - if (LoadFileContents(argv[2], &fc) != 0) { - printf("failed to load bonus file %s\n", argv[2]); - return 1; - } - bonus = malloc(sizeof(Value)); - bonus->type = VAL_BLOB; - bonus->size = fc.size; - bonus->data = (char*)fc.data; - argc -= 2; - argv += 2; - } - - if (argc < 6) { - return 2; - } - - char* endptr; - size_t target_size = strtol(argv[4], &endptr, 10); - if (target_size == 0 && endptr == argv[4]) { - printf("can't parse \"%s\" as byte count\n\n", argv[4]); - return 1; - } - - char** sha1s; - Value** patches; - int num_patches; - if (ParsePatchArgs(argc-5, argv+5, &sha1s, &patches, &num_patches) != 0) { - printf("failed to parse patch args\n"); - return 1; - } - - int result = applypatch(argv[1], argv[2], argv[3], target_size, - num_patches, sha1s, patches, bonus); - - int i; - for (i = 0; i < num_patches; ++i) { - Value* p = patches[i]; - if (p != NULL) { - free(p->data); - free(p); - } - } - if (bonus) { - free(bonus->data); - free(bonus); - } - free(sha1s); - free(patches); - - return result; -} - -// This program applies binary patches to files in a way that is safe -// (the original file is not touched until we have the desired -// replacement for it) and idempotent (it's okay to run this program -// multiple times). -// -// - if the sha1 hash of <tgt-file> is <tgt-sha1>, does nothing and exits -// successfully. -// -// - otherwise, if the sha1 hash of <src-file> is <src-sha1>, applies the -// bsdiff <patch> to <src-file> to produce a new file (the type of patch -// is automatically detected from the file header). If that new -// file has sha1 hash <tgt-sha1>, moves it to replace <tgt-file>, and -// exits successfully. Note that if <src-file> and <tgt-file> are -// not the same, <src-file> is NOT deleted on success. <tgt-file> -// may be the string "-" to mean "the same as src-file". -// -// - otherwise, or if any error is encountered, exits with non-zero -// status. -// -// <src-file> (or <file> in check mode) may refer to an MTD partition -// to read the source data. See the comments for the -// LoadMTDContents() function above for the format of such a filename. - -int main(int argc, char** argv) { - if (argc < 2) { - usage: - printf( - "usage: %s [-b <bonus-file>] <src-file> <tgt-file> <tgt-sha1> <tgt-size> " - "[<src-sha1>:<patch> ...]\n" - " or %s -c <file> [<sha1> ...]\n" - " or %s -s <bytes>\n" - " or %s -l\n" - "\n" - "Filenames may be of the form\n" - " MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n" - "to specify reading from or writing to an MTD partition.\n\n", - argv[0], argv[0], argv[0], argv[0]); - return 2; - } - - int result; - - if (strncmp(argv[1], "-l", 3) == 0) { - result = ShowLicenses(); - } else if (strncmp(argv[1], "-c", 3) == 0) { - result = CheckMode(argc, argv); - } else if (strncmp(argv[1], "-s", 3) == 0) { - result = SpaceMode(argc, argv); - } else { - result = PatchMode(argc, argv); - } - - if (result == 2) { - goto usage; - } - return result; -} diff --git a/applypatch/main.cpp b/applypatch/main.cpp new file mode 100644 index 000000000..9013760c4 --- /dev/null +++ b/applypatch/main.cpp @@ -0,0 +1,200 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <memory> +#include <vector> + +#include "applypatch.h" +#include "edify/expr.h" +#include "openssl/sha.h" + +static int CheckMode(int argc, char** argv) { + if (argc < 3) { + return 2; + } + return applypatch_check(argv[2], argc-3, argv+3); +} + +static int SpaceMode(int argc, char** argv) { + if (argc != 3) { + return 2; + } + char* endptr; + size_t bytes = strtol(argv[2], &endptr, 10); + if (bytes == 0 && endptr == argv[2]) { + printf("can't parse \"%s\" as byte count\n\n", argv[2]); + return 1; + } + return CacheSizeCheck(bytes); +} + +// Parse arguments (which should be of the form "<sha1>:<filename>" +// into the new parallel arrays *sha1s and *files.Returns true on +// success. +static bool ParsePatchArgs(int argc, char** argv, std::vector<char*>* sha1s, + std::vector<FileContents>* files) { + uint8_t digest[SHA_DIGEST_LENGTH]; + + for (int i = 0; i < argc; ++i) { + char* colon = strchr(argv[i], ':'); + if (colon == nullptr) { + printf("no ':' in patch argument \"%s\"\n", argv[i]); + return false; + } + *colon = '\0'; + ++colon; + if (ParseSha1(argv[i], digest) != 0) { + printf("failed to parse sha1 \"%s\"\n", argv[i]); + return false; + } + + sha1s->push_back(argv[i]); + FileContents fc; + if (LoadFileContents(colon, &fc) != 0) { + return false; + } + files->push_back(std::move(fc)); + } + return true; +} + +static int FlashMode(const char* src_filename, const char* tgt_filename, + const char* tgt_sha1, size_t tgt_size) { + return applypatch_flash(src_filename, tgt_filename, tgt_sha1, tgt_size); +} + +static int PatchMode(int argc, char** argv) { + FileContents bonusFc; + Value bonusValue; + Value* bonus = nullptr; + + if (argc >= 3 && strcmp(argv[1], "-b") == 0) { + if (LoadFileContents(argv[2], &bonusFc) != 0) { + printf("failed to load bonus file %s\n", argv[2]); + return 1; + } + bonus = &bonusValue; + bonus->type = VAL_BLOB; + bonus->size = bonusFc.data.size(); + bonus->data = reinterpret_cast<char*>(bonusFc.data.data()); + argc -= 2; + argv += 2; + } + + if (argc < 4) { + return 2; + } + + char* endptr; + size_t target_size = strtol(argv[4], &endptr, 10); + if (target_size == 0 && endptr == argv[4]) { + printf("can't parse \"%s\" as byte count\n\n", argv[4]); + return 1; + } + + // If no <src-sha1>:<patch> is provided, it is in flash mode. + if (argc == 5) { + if (bonus != nullptr) { + printf("bonus file not supported in flash mode\n"); + return 1; + } + return FlashMode(argv[1], argv[2], argv[3], target_size); + } + std::vector<char*> sha1s; + std::vector<FileContents> files; + if (!ParsePatchArgs(argc-5, argv+5, &sha1s, &files)) { + printf("failed to parse patch args\n"); + return 1; + } + std::vector<Value> patches(files.size()); + std::vector<Value*> patch_ptrs(files.size()); + for (size_t i = 0; i < files.size(); ++i) { + patches[i].type = VAL_BLOB; + patches[i].size = files[i].data.size(); + patches[i].data = reinterpret_cast<char*>(files[i].data.data()); + patch_ptrs[i] = &patches[i]; + } + return applypatch(argv[1], argv[2], argv[3], target_size, + patch_ptrs.size(), sha1s.data(), + patch_ptrs.data(), bonus); +} + +// This program applies binary patches to files in a way that is safe +// (the original file is not touched until we have the desired +// replacement for it) and idempotent (it's okay to run this program +// multiple times). +// +// - if the sha1 hash of <tgt-file> is <tgt-sha1>, does nothing and exits +// successfully. +// +// - otherwise, if no <src-sha1>:<patch> is provided, flashes <tgt-file> with +// <src-file>. <tgt-file> must be a partition name, while <src-file> must +// be a regular image file. <src-file> will not be deleted on success. +// +// - otherwise, if the sha1 hash of <src-file> is <src-sha1>, applies the +// bsdiff <patch> to <src-file> to produce a new file (the type of patch +// is automatically detected from the file header). If that new +// file has sha1 hash <tgt-sha1>, moves it to replace <tgt-file>, and +// exits successfully. Note that if <src-file> and <tgt-file> are +// not the same, <src-file> is NOT deleted on success. <tgt-file> +// may be the string "-" to mean "the same as src-file". +// +// - otherwise, or if any error is encountered, exits with non-zero +// status. +// +// <src-file> (or <file> in check mode) may refer to an MTD partition +// to read the source data. See the comments for the +// LoadMTDContents() function above for the format of such a filename. + +int main(int argc, char** argv) { + if (argc < 2) { + usage: + printf( + "usage: %s [-b <bonus-file>] <src-file> <tgt-file> <tgt-sha1> <tgt-size> " + "[<src-sha1>:<patch> ...]\n" + " or %s -c <file> [<sha1> ...]\n" + " or %s -s <bytes>\n" + " or %s -l\n" + "\n" + "Filenames may be of the form\n" + " MTD:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...\n" + "to specify reading from or writing to an MTD partition.\n\n", + argv[0], argv[0], argv[0], argv[0]); + return 2; + } + + int result; + + if (strncmp(argv[1], "-l", 3) == 0) { + result = ShowLicenses(); + } else if (strncmp(argv[1], "-c", 3) == 0) { + result = CheckMode(argc, argv); + } else if (strncmp(argv[1], "-s", 3) == 0) { + result = SpaceMode(argc, argv); + } else { + result = PatchMode(argc, argv); + } + + if (result == 2) { + goto usage; + } + return result; +} diff --git a/applypatch/utils.c b/applypatch/utils.c deleted file mode 100644 index 41ff676dc..000000000 --- a/applypatch/utils.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> - -#include "utils.h" - -/** Write a 4-byte value to f in little-endian order. */ -void Write4(int value, FILE* f) { - fputc(value & 0xff, f); - fputc((value >> 8) & 0xff, f); - fputc((value >> 16) & 0xff, f); - fputc((value >> 24) & 0xff, f); -} - -/** Write an 8-byte value to f in little-endian order. */ -void Write8(long long value, FILE* f) { - fputc(value & 0xff, f); - fputc((value >> 8) & 0xff, f); - fputc((value >> 16) & 0xff, f); - fputc((value >> 24) & 0xff, f); - fputc((value >> 32) & 0xff, f); - fputc((value >> 40) & 0xff, f); - fputc((value >> 48) & 0xff, f); - fputc((value >> 56) & 0xff, f); -} - -int Read2(void* pv) { - unsigned char* p = pv; - return (int)(((unsigned int)p[1] << 8) | - (unsigned int)p[0]); -} - -int Read4(void* pv) { - unsigned char* p = pv; - return (int)(((unsigned int)p[3] << 24) | - ((unsigned int)p[2] << 16) | - ((unsigned int)p[1] << 8) | - (unsigned int)p[0]); -} - -long long Read8(void* pv) { - unsigned char* p = pv; - return (long long)(((unsigned long long)p[7] << 56) | - ((unsigned long long)p[6] << 48) | - ((unsigned long long)p[5] << 40) | - ((unsigned long long)p[4] << 32) | - ((unsigned long long)p[3] << 24) | - ((unsigned long long)p[2] << 16) | - ((unsigned long long)p[1] << 8) | - (unsigned long long)p[0]); -} diff --git a/applypatch/utils.cpp b/applypatch/utils.cpp new file mode 100644 index 000000000..4a80be75f --- /dev/null +++ b/applypatch/utils.cpp @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> + +#include "utils.h" + +/** Write a 4-byte value to f in little-endian order. */ +void Write4(int value, FILE* f) { + fputc(value & 0xff, f); + fputc((value >> 8) & 0xff, f); + fputc((value >> 16) & 0xff, f); + fputc((value >> 24) & 0xff, f); +} + +/** Write an 8-byte value to f in little-endian order. */ +void Write8(long long value, FILE* f) { + fputc(value & 0xff, f); + fputc((value >> 8) & 0xff, f); + fputc((value >> 16) & 0xff, f); + fputc((value >> 24) & 0xff, f); + fputc((value >> 32) & 0xff, f); + fputc((value >> 40) & 0xff, f); + fputc((value >> 48) & 0xff, f); + fputc((value >> 56) & 0xff, f); +} + +int Read2(void* pv) { + unsigned char* p = reinterpret_cast<unsigned char*>(pv); + return (int)(((unsigned int)p[1] << 8) | + (unsigned int)p[0]); +} + +int Read4(void* pv) { + unsigned char* p = reinterpret_cast<unsigned char*>(pv); + return (int)(((unsigned int)p[3] << 24) | + ((unsigned int)p[2] << 16) | + ((unsigned int)p[1] << 8) | + (unsigned int)p[0]); +} + +long long Read8(void* pv) { + unsigned char* p = reinterpret_cast<unsigned char*>(pv); + return (long long)(((unsigned long long)p[7] << 56) | + ((unsigned long long)p[6] << 48) | + ((unsigned long long)p[5] << 40) | + ((unsigned long long)p[4] << 32) | + ((unsigned long long)p[3] << 24) | + ((unsigned long long)p[2] << 16) | + ((unsigned long long)p[1] << 8) | + (unsigned long long)p[0]); +} diff --git a/bootloader.cpp b/bootloader.cpp index 600d238f5..d80c5e793 100644 --- a/bootloader.cpp +++ b/bootloader.cpp @@ -14,28 +14,33 @@ * limitations under the License. */ -#include <fs_mgr.h> -#include "bootloader.h" -#include "common.h" -#include "mtdutils/mtdutils.h" -#include "roots.h" - #include <errno.h> +#include <fcntl.h> +#include <inttypes.h> #include <stdio.h> #include <string.h> #include <sys/stat.h> +#include <sys/types.h> #include <unistd.h> -static int get_bootloader_message_mtd(struct bootloader_message *out, const Volume* v); -static int set_bootloader_message_mtd(const struct bootloader_message *in, const Volume* v); -static int get_bootloader_message_block(struct bootloader_message *out, const Volume* v); -static int set_bootloader_message_block(const struct bootloader_message *in, const Volume* v); +#include <fs_mgr.h> + +#include "bootloader.h" +#include "common.h" +#include "mtdutils/mtdutils.h" +#include "roots.h" +#include "unique_fd.h" + +static int get_bootloader_message_mtd(bootloader_message* out, const Volume* v); +static int set_bootloader_message_mtd(const bootloader_message* in, const Volume* v); +static int get_bootloader_message_block(bootloader_message* out, const Volume* v); +static int set_bootloader_message_block(const bootloader_message* in, const Volume* v); -int get_bootloader_message(struct bootloader_message *out) { +int get_bootloader_message(bootloader_message* out) { Volume* v = volume_for_path("/misc"); - if (v == NULL) { - LOGE("Cannot load volume /misc!\n"); - return -1; + if (v == nullptr) { + LOGE("Cannot load volume /misc!\n"); + return -1; } if (strcmp(v->fs_type, "mtd") == 0) { return get_bootloader_message_mtd(out, v); @@ -46,11 +51,11 @@ int get_bootloader_message(struct bootloader_message *out) { return -1; } -int set_bootloader_message(const struct bootloader_message *in) { +int set_bootloader_message(const bootloader_message* in) { Volume* v = volume_for_path("/misc"); - if (v == NULL) { - LOGE("Cannot load volume /misc!\n"); - return -1; + if (v == nullptr) { + LOGE("Cannot load volume /misc!\n"); + return -1; } if (strcmp(v->fs_type, "mtd") == 0) { return set_bootloader_message_mtd(in, v); @@ -68,69 +73,69 @@ int set_bootloader_message(const struct bootloader_message *in) { static const int MISC_PAGES = 3; // number of pages to save static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page -static int get_bootloader_message_mtd(struct bootloader_message *out, +static int get_bootloader_message_mtd(bootloader_message* out, const Volume* v) { size_t write_size; mtd_scan_partitions(); - const MtdPartition *part = mtd_find_partition_by_name(v->blk_device); - if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { - LOGE("Can't find %s\n", v->blk_device); + const MtdPartition* part = mtd_find_partition_by_name(v->blk_device); + if (part == nullptr || mtd_partition_info(part, nullptr, nullptr, &write_size)) { + LOGE("failed to find \"%s\"\n", v->blk_device); return -1; } - MtdReadContext *read = mtd_read_partition(part); - if (read == NULL) { - LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno)); + MtdReadContext* read = mtd_read_partition(part); + if (read == nullptr) { + LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } const ssize_t size = write_size * MISC_PAGES; char data[size]; ssize_t r = mtd_read_data(read, data, size); - if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno)); + if (r != size) LOGE("failed to read \"%s\": %s\n", v->blk_device, strerror(errno)); mtd_read_close(read); if (r != size) return -1; memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out)); return 0; } -static int set_bootloader_message_mtd(const struct bootloader_message *in, +static int set_bootloader_message_mtd(const bootloader_message* in, const Volume* v) { size_t write_size; mtd_scan_partitions(); - const MtdPartition *part = mtd_find_partition_by_name(v->blk_device); - if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) { - LOGE("Can't find %s\n", v->blk_device); + const MtdPartition* part = mtd_find_partition_by_name(v->blk_device); + if (part == nullptr || mtd_partition_info(part, nullptr, nullptr, &write_size)) { + LOGE("failed to find \"%s\"\n", v->blk_device); return -1; } - MtdReadContext *read = mtd_read_partition(part); - if (read == NULL) { - LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno)); + MtdReadContext* read = mtd_read_partition(part); + if (read == nullptr) { + LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } ssize_t size = write_size * MISC_PAGES; char data[size]; ssize_t r = mtd_read_data(read, data, size); - if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno)); + if (r != size) LOGE("failed to read \"%s\": %s\n", v->blk_device, strerror(errno)); mtd_read_close(read); if (r != size) return -1; memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in)); - MtdWriteContext *write = mtd_write_partition(part); - if (write == NULL) { - LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno)); + MtdWriteContext* write = mtd_write_partition(part); + if (write == nullptr) { + LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } if (mtd_write_data(write, data, size) != size) { - LOGE("Can't write %s\n(%s)\n", v->blk_device, strerror(errno)); + LOGE("failed to write \"%s\": %s\n", v->blk_device, strerror(errno)); mtd_write_close(write); return -1; } if (mtd_write_close(write)) { - LOGE("Can't finish %s\n(%s)\n", v->blk_device, strerror(errno)); + LOGE("failed to finish \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } @@ -146,57 +151,67 @@ static int set_bootloader_message_mtd(const struct bootloader_message *in, static void wait_for_device(const char* fn) { int tries = 0; int ret; - struct stat buf; do { ++tries; + struct stat buf; ret = stat(fn, &buf); - if (ret) { - printf("stat %s try %d: %s\n", fn, tries, strerror(errno)); + if (ret == -1) { + printf("failed to stat \"%s\" try %d: %s\n", fn, tries, strerror(errno)); sleep(1); } } while (ret && tries < 10); + if (ret) { - printf("failed to stat %s\n", fn); + printf("failed to stat \"%s\"\n", fn); } } -static int get_bootloader_message_block(struct bootloader_message *out, +static int get_bootloader_message_block(bootloader_message* out, const Volume* v) { wait_for_device(v->blk_device); FILE* f = fopen(v->blk_device, "rb"); - if (f == NULL) { - LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno)); + if (f == nullptr) { + LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } - struct bootloader_message temp; + bootloader_message temp; int count = fread(&temp, sizeof(temp), 1, f); if (count != 1) { - LOGE("Failed reading %s\n(%s)\n", v->blk_device, strerror(errno)); + LOGE("failed to read \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } if (fclose(f) != 0) { - LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno)); + LOGE("failed to close \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } memcpy(out, &temp, sizeof(temp)); return 0; } -static int set_bootloader_message_block(const struct bootloader_message *in, +static int set_bootloader_message_block(const bootloader_message* in, const Volume* v) { wait_for_device(v->blk_device); - FILE* f = fopen(v->blk_device, "wb"); - if (f == NULL) { - LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno)); + unique_fd fd(open(v->blk_device, O_WRONLY | O_SYNC)); + if (fd.get() == -1) { + LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } - int count = fwrite(in, sizeof(*in), 1, f); - if (count != 1) { - LOGE("Failed writing %s\n(%s)\n", v->blk_device, strerror(errno)); - return -1; + + size_t written = 0; + const uint8_t* start = reinterpret_cast<const uint8_t*>(in); + size_t total = sizeof(*in); + while (written < total) { + ssize_t wrote = TEMP_FAILURE_RETRY(write(fd.get(), start + written, total - written)); + if (wrote == -1) { + LOGE("failed to write %" PRId64 " bytes: %s\n", + static_cast<off64_t>(written), strerror(errno)); + return -1; + } + written += wrote; } - if (fclose(f) != 0) { - LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno)); + + if (fsync(fd.get()) == -1) { + LOGE("failed to fsync \"%s\": %s\n", v->blk_device, strerror(errno)); return -1; } return 0; diff --git a/bootloader.h b/bootloader.h index c2895dd91..742a4abfb 100644 --- a/bootloader.h +++ b/bootloader.h @@ -17,10 +17,6 @@ #ifndef _RECOVERY_BOOTLOADER_H #define _RECOVERY_BOOTLOADER_H -#ifdef __cplusplus -extern "C" { -#endif - /* Bootloader Message * * This structure describes the content of a block in flash @@ -43,6 +39,13 @@ extern "C" { * multiple times, so that the UI can reflect which invocation of the * package it is. If the value is of the format "#/#" (eg, "1/3"), * the UI will add a simple indicator of that status. + * + * The slot_suffix field is used for A/B implementations where the + * bootloader does not set the androidboot.ro.boot.slot_suffix kernel + * commandline parameter. This is used by fs_mgr to mount /system and + * other partitions with the slotselect flag set in fstab. A/B + * implementations are free to use all 32 bytes and may store private + * data past the first NUL-byte in this field. */ struct bootloader_message { char command[32]; @@ -55,7 +58,8 @@ struct bootloader_message { // stage string (for multistage packages) and possible future // expansion. char stage[32]; - char reserved[224]; + char slot_suffix[32]; + char reserved[192]; }; /* Read and write the bootloader command from the "misc" partition. @@ -64,8 +68,4 @@ struct bootloader_message { int get_bootloader_message(struct bootloader_message *out); int set_bootloader_message(const struct bootloader_message *in); -#ifdef __cplusplus -} -#endif - #endif @@ -21,10 +21,6 @@ #include <stdio.h> #include <stdarg.h> -#ifdef __cplusplus -extern "C" { -#endif - #define LOGE(...) ui_print("E:" __VA_ARGS__) #define LOGW(...) fprintf(stdout, "W:" __VA_ARGS__) #define LOGI(...) fprintf(stdout, "I:" __VA_ARGS__) @@ -50,8 +46,4 @@ void ui_print(const char* format, ...); bool is_ro_debuggable(); -#ifdef __cplusplus -} -#endif - #endif // RECOVERY_COMMON_H diff --git a/device.cpp b/device.cpp index fd1a9875b..2465b0778 100644 --- a/device.cpp +++ b/device.cpp @@ -25,6 +25,7 @@ static const char* MENU_ITEMS[] = { "Wipe cache partition", "Mount /system", "View recovery logs", + "Run graphics test", "Power off", NULL }; @@ -43,7 +44,8 @@ Device::BuiltinAction Device::InvokeMenuItem(int menu_position) { case 5: return WIPE_CACHE; case 6: return MOUNT_SYSTEM; case 7: return VIEW_RECOVERY_LOGS; - case 8: return SHUTDOWN; + case 8: return RUN_GRAPHICS_TEST; + case 9: return SHUTDOWN; default: return NO_ACTION; } } @@ -68,6 +68,7 @@ class Device { SHUTDOWN = 8, VIEW_RECOVERY_LOGS = 9, MOUNT_SYSTEM = 10, + RUN_GRAPHICS_TEST = 11, }; // Return the list of menu items (an array of strings, diff --git a/edify/Android.mk b/edify/Android.mk index 03c04e432..71cf7652a 100644 --- a/edify/Android.mk +++ b/edify/Android.mk @@ -3,14 +3,9 @@ LOCAL_PATH := $(call my-dir) edify_src_files := \ - lexer.l \ - parser.y \ - expr.c - -# "-x c" forces the lex/yacc files to be compiled as c the build system -# otherwise forces them to be c++. Need to also add an explicit -std because the -# build system will soon default C++ to -std=c++11. -edify_cflags := -x c -std=gnu89 + lexer.ll \ + parser.yy \ + expr.cpp # # Build the host-side command line tool @@ -19,12 +14,16 @@ include $(CLEAR_VARS) LOCAL_SRC_FILES := \ $(edify_src_files) \ - main.c + main.cpp -LOCAL_CFLAGS := $(edify_cflags) -g -O0 +LOCAL_CPPFLAGS := -g -O0 LOCAL_MODULE := edify LOCAL_YACCFLAGS := -v -LOCAL_CFLAGS += -Wno-unused-parameter +LOCAL_CPPFLAGS += -Wno-unused-parameter +LOCAL_CPPFLAGS += -Wno-deprecated-register +LOCAL_CLANG := true +LOCAL_C_INCLUDES += $(LOCAL_PATH)/.. +LOCAL_STATIC_LIBRARIES += libbase include $(BUILD_HOST_EXECUTABLE) @@ -35,8 +34,11 @@ include $(CLEAR_VARS) LOCAL_SRC_FILES := $(edify_src_files) -LOCAL_CFLAGS := $(edify_cflags) -LOCAL_CFLAGS += -Wno-unused-parameter +LOCAL_CPPFLAGS := -Wno-unused-parameter +LOCAL_CPPFLAGS += -Wno-deprecated-register LOCAL_MODULE := libedify +LOCAL_CLANG := true +LOCAL_C_INCLUDES += $(LOCAL_PATH)/.. +LOCAL_STATIC_LIBRARIES += libbase include $(BUILD_STATIC_LIBRARY) diff --git a/edify/expr.c b/edify/expr.c deleted file mode 100644 index 79f6282d8..000000000 --- a/edify/expr.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <string.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <unistd.h> - -#include "expr.h" - -// Functions should: -// -// - return a malloc()'d string -// - if Evaluate() on any argument returns NULL, return NULL. - -int BooleanString(const char* s) { - return s[0] != '\0'; -} - -char* Evaluate(State* state, Expr* expr) { - Value* v = expr->fn(expr->name, state, expr->argc, expr->argv); - if (v == NULL) return NULL; - if (v->type != VAL_STRING) { - ErrorAbort(state, "expecting string, got value type %d", v->type); - FreeValue(v); - return NULL; - } - char* result = v->data; - free(v); - return result; -} - -Value* EvaluateValue(State* state, Expr* expr) { - return expr->fn(expr->name, state, expr->argc, expr->argv); -} - -Value* StringValue(char* str) { - if (str == NULL) return NULL; - Value* v = malloc(sizeof(Value)); - v->type = VAL_STRING; - v->size = strlen(str); - v->data = str; - return v; -} - -void FreeValue(Value* v) { - if (v == NULL) return; - free(v->data); - free(v); -} - -Value* ConcatFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc == 0) { - return StringValue(strdup("")); - } - char** strings = malloc(argc * sizeof(char*)); - int i; - for (i = 0; i < argc; ++i) { - strings[i] = NULL; - } - char* result = NULL; - int length = 0; - for (i = 0; i < argc; ++i) { - strings[i] = Evaluate(state, argv[i]); - if (strings[i] == NULL) { - goto done; - } - length += strlen(strings[i]); - } - - result = malloc(length+1); - int p = 0; - for (i = 0; i < argc; ++i) { - strcpy(result+p, strings[i]); - p += strlen(strings[i]); - } - result[p] = '\0'; - - done: - for (i = 0; i < argc; ++i) { - free(strings[i]); - } - free(strings); - return StringValue(result); -} - -Value* IfElseFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2 && argc != 3) { - free(state->errmsg); - state->errmsg = strdup("ifelse expects 2 or 3 arguments"); - return NULL; - } - char* cond = Evaluate(state, argv[0]); - if (cond == NULL) { - return NULL; - } - - if (BooleanString(cond) == true) { - free(cond); - return EvaluateValue(state, argv[1]); - } else { - if (argc == 3) { - free(cond); - return EvaluateValue(state, argv[2]); - } else { - return StringValue(cond); - } - } -} - -Value* AbortFn(const char* name, State* state, int argc, Expr* argv[]) { - char* msg = NULL; - if (argc > 0) { - msg = Evaluate(state, argv[0]); - } - free(state->errmsg); - if (msg) { - state->errmsg = msg; - } else { - state->errmsg = strdup("called abort()"); - } - return NULL; -} - -Value* AssertFn(const char* name, State* state, int argc, Expr* argv[]) { - int i; - for (i = 0; i < argc; ++i) { - char* v = Evaluate(state, argv[i]); - if (v == NULL) { - return NULL; - } - int b = BooleanString(v); - free(v); - if (!b) { - int prefix_len; - int len = argv[i]->end - argv[i]->start; - char* err_src = malloc(len + 20); - strcpy(err_src, "assert failed: "); - prefix_len = strlen(err_src); - memcpy(err_src + prefix_len, state->script + argv[i]->start, len); - err_src[prefix_len + len] = '\0'; - free(state->errmsg); - state->errmsg = err_src; - return NULL; - } - } - return StringValue(strdup("")); -} - -Value* SleepFn(const char* name, State* state, int argc, Expr* argv[]) { - char* val = Evaluate(state, argv[0]); - if (val == NULL) { - return NULL; - } - int v = strtol(val, NULL, 10); - sleep(v); - return StringValue(val); -} - -Value* StdoutFn(const char* name, State* state, int argc, Expr* argv[]) { - int i; - for (i = 0; i < argc; ++i) { - char* v = Evaluate(state, argv[i]); - if (v == NULL) { - return NULL; - } - fputs(v, stdout); - free(v); - } - return StringValue(strdup("")); -} - -Value* LogicalAndFn(const char* name, State* state, - int argc, Expr* argv[]) { - char* left = Evaluate(state, argv[0]); - if (left == NULL) return NULL; - if (BooleanString(left) == true) { - free(left); - return EvaluateValue(state, argv[1]); - } else { - return StringValue(left); - } -} - -Value* LogicalOrFn(const char* name, State* state, - int argc, Expr* argv[]) { - char* left = Evaluate(state, argv[0]); - if (left == NULL) return NULL; - if (BooleanString(left) == false) { - free(left); - return EvaluateValue(state, argv[1]); - } else { - return StringValue(left); - } -} - -Value* LogicalNotFn(const char* name, State* state, - int argc, Expr* argv[]) { - char* val = Evaluate(state, argv[0]); - if (val == NULL) return NULL; - bool bv = BooleanString(val); - free(val); - return StringValue(strdup(bv ? "" : "t")); -} - -Value* SubstringFn(const char* name, State* state, - int argc, Expr* argv[]) { - char* needle = Evaluate(state, argv[0]); - if (needle == NULL) return NULL; - char* haystack = Evaluate(state, argv[1]); - if (haystack == NULL) { - free(needle); - return NULL; - } - - char* result = strdup(strstr(haystack, needle) ? "t" : ""); - free(needle); - free(haystack); - return StringValue(result); -} - -Value* EqualityFn(const char* name, State* state, int argc, Expr* argv[]) { - char* left = Evaluate(state, argv[0]); - if (left == NULL) return NULL; - char* right = Evaluate(state, argv[1]); - if (right == NULL) { - free(left); - return NULL; - } - - char* result = strdup(strcmp(left, right) == 0 ? "t" : ""); - free(left); - free(right); - return StringValue(result); -} - -Value* InequalityFn(const char* name, State* state, int argc, Expr* argv[]) { - char* left = Evaluate(state, argv[0]); - if (left == NULL) return NULL; - char* right = Evaluate(state, argv[1]); - if (right == NULL) { - free(left); - return NULL; - } - - char* result = strdup(strcmp(left, right) != 0 ? "t" : ""); - free(left); - free(right); - return StringValue(result); -} - -Value* SequenceFn(const char* name, State* state, int argc, Expr* argv[]) { - Value* left = EvaluateValue(state, argv[0]); - if (left == NULL) return NULL; - FreeValue(left); - return EvaluateValue(state, argv[1]); -} - -Value* LessThanIntFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2) { - free(state->errmsg); - state->errmsg = strdup("less_than_int expects 2 arguments"); - return NULL; - } - - char* left; - char* right; - if (ReadArgs(state, argv, 2, &left, &right) < 0) return NULL; - - bool result = false; - char* end; - - long l_int = strtol(left, &end, 10); - if (left[0] == '\0' || *end != '\0') { - goto done; - } - - long r_int = strtol(right, &end, 10); - if (right[0] == '\0' || *end != '\0') { - goto done; - } - - result = l_int < r_int; - - done: - free(left); - free(right); - return StringValue(strdup(result ? "t" : "")); -} - -Value* GreaterThanIntFn(const char* name, State* state, - int argc, Expr* argv[]) { - if (argc != 2) { - free(state->errmsg); - state->errmsg = strdup("greater_than_int expects 2 arguments"); - return NULL; - } - - Expr* temp[2]; - temp[0] = argv[1]; - temp[1] = argv[0]; - - return LessThanIntFn(name, state, 2, temp); -} - -Value* Literal(const char* name, State* state, int argc, Expr* argv[]) { - return StringValue(strdup(name)); -} - -Expr* Build(Function fn, YYLTYPE loc, int count, ...) { - va_list v; - va_start(v, count); - Expr* e = malloc(sizeof(Expr)); - e->fn = fn; - e->name = "(operator)"; - e->argc = count; - e->argv = malloc(count * sizeof(Expr*)); - int i; - for (i = 0; i < count; ++i) { - e->argv[i] = va_arg(v, Expr*); - } - va_end(v); - e->start = loc.start; - e->end = loc.end; - return e; -} - -// ----------------------------------------------------------------- -// the function table -// ----------------------------------------------------------------- - -static int fn_entries = 0; -static int fn_size = 0; -NamedFunction* fn_table = NULL; - -void RegisterFunction(const char* name, Function fn) { - if (fn_entries >= fn_size) { - fn_size = fn_size*2 + 1; - fn_table = realloc(fn_table, fn_size * sizeof(NamedFunction)); - } - fn_table[fn_entries].name = name; - fn_table[fn_entries].fn = fn; - ++fn_entries; -} - -static int fn_entry_compare(const void* a, const void* b) { - const char* na = ((const NamedFunction*)a)->name; - const char* nb = ((const NamedFunction*)b)->name; - return strcmp(na, nb); -} - -void FinishRegistration() { - qsort(fn_table, fn_entries, sizeof(NamedFunction), fn_entry_compare); -} - -Function FindFunction(const char* name) { - NamedFunction key; - key.name = name; - NamedFunction* nf = bsearch(&key, fn_table, fn_entries, - sizeof(NamedFunction), fn_entry_compare); - if (nf == NULL) { - return NULL; - } - return nf->fn; -} - -void RegisterBuiltins() { - RegisterFunction("ifelse", IfElseFn); - RegisterFunction("abort", AbortFn); - RegisterFunction("assert", AssertFn); - RegisterFunction("concat", ConcatFn); - RegisterFunction("is_substring", SubstringFn); - RegisterFunction("stdout", StdoutFn); - RegisterFunction("sleep", SleepFn); - - RegisterFunction("less_than_int", LessThanIntFn); - RegisterFunction("greater_than_int", GreaterThanIntFn); -} - - -// ----------------------------------------------------------------- -// convenience methods for functions -// ----------------------------------------------------------------- - -// Evaluate the expressions in argv, giving 'count' char* (the ... is -// zero or more char** to put them in). If any expression evaluates -// to NULL, free the rest and return -1. Return 0 on success. -int ReadArgs(State* state, Expr* argv[], int count, ...) { - char** args = malloc(count * sizeof(char*)); - va_list v; - va_start(v, count); - int i; - for (i = 0; i < count; ++i) { - args[i] = Evaluate(state, argv[i]); - if (args[i] == NULL) { - va_end(v); - int j; - for (j = 0; j < i; ++j) { - free(args[j]); - } - free(args); - return -1; - } - *(va_arg(v, char**)) = args[i]; - } - va_end(v); - free(args); - return 0; -} - -// Evaluate the expressions in argv, giving 'count' Value* (the ... is -// zero or more Value** to put them in). If any expression evaluates -// to NULL, free the rest and return -1. Return 0 on success. -int ReadValueArgs(State* state, Expr* argv[], int count, ...) { - Value** args = malloc(count * sizeof(Value*)); - va_list v; - va_start(v, count); - int i; - for (i = 0; i < count; ++i) { - args[i] = EvaluateValue(state, argv[i]); - if (args[i] == NULL) { - va_end(v); - int j; - for (j = 0; j < i; ++j) { - FreeValue(args[j]); - } - free(args); - return -1; - } - *(va_arg(v, Value**)) = args[i]; - } - va_end(v); - free(args); - return 0; -} - -// Evaluate the expressions in argv, returning an array of char* -// results. If any evaluate to NULL, free the rest and return NULL. -// The caller is responsible for freeing the returned array and the -// strings it contains. -char** ReadVarArgs(State* state, int argc, Expr* argv[]) { - char** args = (char**)malloc(argc * sizeof(char*)); - int i = 0; - for (i = 0; i < argc; ++i) { - args[i] = Evaluate(state, argv[i]); - if (args[i] == NULL) { - int j; - for (j = 0; j < i; ++j) { - free(args[j]); - } - free(args); - return NULL; - } - } - return args; -} - -// Evaluate the expressions in argv, returning an array of Value* -// results. If any evaluate to NULL, free the rest and return NULL. -// The caller is responsible for freeing the returned array and the -// Values it contains. -Value** ReadValueVarArgs(State* state, int argc, Expr* argv[]) { - Value** args = (Value**)malloc(argc * sizeof(Value*)); - int i = 0; - for (i = 0; i < argc; ++i) { - args[i] = EvaluateValue(state, argv[i]); - if (args[i] == NULL) { - int j; - for (j = 0; j < i; ++j) { - FreeValue(args[j]); - } - free(args); - return NULL; - } - } - return args; -} - -// Use printf-style arguments to compose an error message to put into -// *state. Returns NULL. -Value* ErrorAbort(State* state, const char* format, ...) { - char* buffer = malloc(4096); - va_list v; - va_start(v, format); - vsnprintf(buffer, 4096, format, v); - va_end(v); - free(state->errmsg); - state->errmsg = buffer; - return NULL; -} diff --git a/edify/expr.cpp b/edify/expr.cpp new file mode 100644 index 000000000..cc14fbe93 --- /dev/null +++ b/edify/expr.cpp @@ -0,0 +1,526 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <string.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> +#include <unistd.h> + +#include <string> + +#include <android-base/stringprintf.h> +#include <android-base/strings.h> + +#include "expr.h" + +// Functions should: +// +// - return a malloc()'d string +// - if Evaluate() on any argument returns NULL, return NULL. + +int BooleanString(const char* s) { + return s[0] != '\0'; +} + +char* Evaluate(State* state, Expr* expr) { + Value* v = expr->fn(expr->name, state, expr->argc, expr->argv); + if (v == NULL) return NULL; + if (v->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "expecting string, got value type %d", v->type); + FreeValue(v); + return NULL; + } + char* result = v->data; + free(v); + return result; +} + +Value* EvaluateValue(State* state, Expr* expr) { + return expr->fn(expr->name, state, expr->argc, expr->argv); +} + +Value* StringValue(char* str) { + if (str == NULL) return NULL; + Value* v = reinterpret_cast<Value*>(malloc(sizeof(Value))); + v->type = VAL_STRING; + v->size = strlen(str); + v->data = str; + return v; +} + +void FreeValue(Value* v) { + if (v == NULL) return; + free(v->data); + free(v); +} + +Value* ConcatFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc == 0) { + return StringValue(strdup("")); + } + char** strings = reinterpret_cast<char**>(malloc(argc * sizeof(char*))); + int i; + for (i = 0; i < argc; ++i) { + strings[i] = NULL; + } + char* result = NULL; + int length = 0; + for (i = 0; i < argc; ++i) { + strings[i] = Evaluate(state, argv[i]); + if (strings[i] == NULL) { + goto done; + } + length += strlen(strings[i]); + } + + result = reinterpret_cast<char*>(malloc(length+1)); + int p; + p = 0; + for (i = 0; i < argc; ++i) { + strcpy(result+p, strings[i]); + p += strlen(strings[i]); + } + result[p] = '\0'; + + done: + for (i = 0; i < argc; ++i) { + free(strings[i]); + } + free(strings); + return StringValue(result); +} + +Value* IfElseFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2 && argc != 3) { + free(state->errmsg); + state->errmsg = strdup("ifelse expects 2 or 3 arguments"); + return NULL; + } + char* cond = Evaluate(state, argv[0]); + if (cond == NULL) { + return NULL; + } + + if (BooleanString(cond) == true) { + free(cond); + return EvaluateValue(state, argv[1]); + } else { + if (argc == 3) { + free(cond); + return EvaluateValue(state, argv[2]); + } else { + return StringValue(cond); + } + } +} + +Value* AbortFn(const char* name, State* state, int argc, Expr* argv[]) { + char* msg = NULL; + if (argc > 0) { + msg = Evaluate(state, argv[0]); + } + free(state->errmsg); + if (msg) { + state->errmsg = msg; + } else { + state->errmsg = strdup("called abort()"); + } + return NULL; +} + +Value* AssertFn(const char* name, State* state, int argc, Expr* argv[]) { + int i; + for (i = 0; i < argc; ++i) { + char* v = Evaluate(state, argv[i]); + if (v == NULL) { + return NULL; + } + int b = BooleanString(v); + free(v); + if (!b) { + int prefix_len; + int len = argv[i]->end - argv[i]->start; + char* err_src = reinterpret_cast<char*>(malloc(len + 20)); + strcpy(err_src, "assert failed: "); + prefix_len = strlen(err_src); + memcpy(err_src + prefix_len, state->script + argv[i]->start, len); + err_src[prefix_len + len] = '\0'; + free(state->errmsg); + state->errmsg = err_src; + return NULL; + } + } + return StringValue(strdup("")); +} + +Value* SleepFn(const char* name, State* state, int argc, Expr* argv[]) { + char* val = Evaluate(state, argv[0]); + if (val == NULL) { + return NULL; + } + int v = strtol(val, NULL, 10); + sleep(v); + return StringValue(val); +} + +Value* StdoutFn(const char* name, State* state, int argc, Expr* argv[]) { + int i; + for (i = 0; i < argc; ++i) { + char* v = Evaluate(state, argv[i]); + if (v == NULL) { + return NULL; + } + fputs(v, stdout); + free(v); + } + return StringValue(strdup("")); +} + +Value* LogicalAndFn(const char* name, State* state, + int argc, Expr* argv[]) { + char* left = Evaluate(state, argv[0]); + if (left == NULL) return NULL; + if (BooleanString(left) == true) { + free(left); + return EvaluateValue(state, argv[1]); + } else { + return StringValue(left); + } +} + +Value* LogicalOrFn(const char* name, State* state, + int argc, Expr* argv[]) { + char* left = Evaluate(state, argv[0]); + if (left == NULL) return NULL; + if (BooleanString(left) == false) { + free(left); + return EvaluateValue(state, argv[1]); + } else { + return StringValue(left); + } +} + +Value* LogicalNotFn(const char* name, State* state, + int argc, Expr* argv[]) { + char* val = Evaluate(state, argv[0]); + if (val == NULL) return NULL; + bool bv = BooleanString(val); + free(val); + return StringValue(strdup(bv ? "" : "t")); +} + +Value* SubstringFn(const char* name, State* state, + int argc, Expr* argv[]) { + char* needle = Evaluate(state, argv[0]); + if (needle == NULL) return NULL; + char* haystack = Evaluate(state, argv[1]); + if (haystack == NULL) { + free(needle); + return NULL; + } + + char* result = strdup(strstr(haystack, needle) ? "t" : ""); + free(needle); + free(haystack); + return StringValue(result); +} + +Value* EqualityFn(const char* name, State* state, int argc, Expr* argv[]) { + char* left = Evaluate(state, argv[0]); + if (left == NULL) return NULL; + char* right = Evaluate(state, argv[1]); + if (right == NULL) { + free(left); + return NULL; + } + + char* result = strdup(strcmp(left, right) == 0 ? "t" : ""); + free(left); + free(right); + return StringValue(result); +} + +Value* InequalityFn(const char* name, State* state, int argc, Expr* argv[]) { + char* left = Evaluate(state, argv[0]); + if (left == NULL) return NULL; + char* right = Evaluate(state, argv[1]); + if (right == NULL) { + free(left); + return NULL; + } + + char* result = strdup(strcmp(left, right) != 0 ? "t" : ""); + free(left); + free(right); + return StringValue(result); +} + +Value* SequenceFn(const char* name, State* state, int argc, Expr* argv[]) { + Value* left = EvaluateValue(state, argv[0]); + if (left == NULL) return NULL; + FreeValue(left); + return EvaluateValue(state, argv[1]); +} + +Value* LessThanIntFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + free(state->errmsg); + state->errmsg = strdup("less_than_int expects 2 arguments"); + return NULL; + } + + char* left; + char* right; + if (ReadArgs(state, argv, 2, &left, &right) < 0) return NULL; + + bool result = false; + char* end; + + long l_int = strtol(left, &end, 10); + if (left[0] == '\0' || *end != '\0') { + goto done; + } + + long r_int; + r_int = strtol(right, &end, 10); + if (right[0] == '\0' || *end != '\0') { + goto done; + } + + result = l_int < r_int; + + done: + free(left); + free(right); + return StringValue(strdup(result ? "t" : "")); +} + +Value* GreaterThanIntFn(const char* name, State* state, + int argc, Expr* argv[]) { + if (argc != 2) { + free(state->errmsg); + state->errmsg = strdup("greater_than_int expects 2 arguments"); + return NULL; + } + + Expr* temp[2]; + temp[0] = argv[1]; + temp[1] = argv[0]; + + return LessThanIntFn(name, state, 2, temp); +} + +Value* Literal(const char* name, State* state, int argc, Expr* argv[]) { + return StringValue(strdup(name)); +} + +Expr* Build(Function fn, YYLTYPE loc, int count, ...) { + va_list v; + va_start(v, count); + Expr* e = reinterpret_cast<Expr*>(malloc(sizeof(Expr))); + e->fn = fn; + e->name = "(operator)"; + e->argc = count; + e->argv = reinterpret_cast<Expr**>(malloc(count * sizeof(Expr*))); + int i; + for (i = 0; i < count; ++i) { + e->argv[i] = va_arg(v, Expr*); + } + va_end(v); + e->start = loc.start; + e->end = loc.end; + return e; +} + +// ----------------------------------------------------------------- +// the function table +// ----------------------------------------------------------------- + +static int fn_entries = 0; +static int fn_size = 0; +NamedFunction* fn_table = NULL; + +void RegisterFunction(const char* name, Function fn) { + if (fn_entries >= fn_size) { + fn_size = fn_size*2 + 1; + fn_table = reinterpret_cast<NamedFunction*>(realloc(fn_table, fn_size * sizeof(NamedFunction))); + } + fn_table[fn_entries].name = name; + fn_table[fn_entries].fn = fn; + ++fn_entries; +} + +static int fn_entry_compare(const void* a, const void* b) { + const char* na = ((const NamedFunction*)a)->name; + const char* nb = ((const NamedFunction*)b)->name; + return strcmp(na, nb); +} + +void FinishRegistration() { + qsort(fn_table, fn_entries, sizeof(NamedFunction), fn_entry_compare); +} + +Function FindFunction(const char* name) { + NamedFunction key; + key.name = name; + NamedFunction* nf = reinterpret_cast<NamedFunction*>(bsearch(&key, fn_table, fn_entries, + sizeof(NamedFunction), fn_entry_compare)); + if (nf == NULL) { + return NULL; + } + return nf->fn; +} + +void RegisterBuiltins() { + RegisterFunction("ifelse", IfElseFn); + RegisterFunction("abort", AbortFn); + RegisterFunction("assert", AssertFn); + RegisterFunction("concat", ConcatFn); + RegisterFunction("is_substring", SubstringFn); + RegisterFunction("stdout", StdoutFn); + RegisterFunction("sleep", SleepFn); + + RegisterFunction("less_than_int", LessThanIntFn); + RegisterFunction("greater_than_int", GreaterThanIntFn); +} + + +// ----------------------------------------------------------------- +// convenience methods for functions +// ----------------------------------------------------------------- + +// Evaluate the expressions in argv, giving 'count' char* (the ... is +// zero or more char** to put them in). If any expression evaluates +// to NULL, free the rest and return -1. Return 0 on success. +int ReadArgs(State* state, Expr* argv[], int count, ...) { + char** args = reinterpret_cast<char**>(malloc(count * sizeof(char*))); + va_list v; + va_start(v, count); + int i; + for (i = 0; i < count; ++i) { + args[i] = Evaluate(state, argv[i]); + if (args[i] == NULL) { + va_end(v); + int j; + for (j = 0; j < i; ++j) { + free(args[j]); + } + free(args); + return -1; + } + *(va_arg(v, char**)) = args[i]; + } + va_end(v); + free(args); + return 0; +} + +// Evaluate the expressions in argv, giving 'count' Value* (the ... is +// zero or more Value** to put them in). If any expression evaluates +// to NULL, free the rest and return -1. Return 0 on success. +int ReadValueArgs(State* state, Expr* argv[], int count, ...) { + Value** args = reinterpret_cast<Value**>(malloc(count * sizeof(Value*))); + va_list v; + va_start(v, count); + int i; + for (i = 0; i < count; ++i) { + args[i] = EvaluateValue(state, argv[i]); + if (args[i] == NULL) { + va_end(v); + int j; + for (j = 0; j < i; ++j) { + FreeValue(args[j]); + } + free(args); + return -1; + } + *(va_arg(v, Value**)) = args[i]; + } + va_end(v); + free(args); + return 0; +} + +// Evaluate the expressions in argv, returning an array of char* +// results. If any evaluate to NULL, free the rest and return NULL. +// The caller is responsible for freeing the returned array and the +// strings it contains. +char** ReadVarArgs(State* state, int argc, Expr* argv[]) { + char** args = (char**)malloc(argc * sizeof(char*)); + int i = 0; + for (i = 0; i < argc; ++i) { + args[i] = Evaluate(state, argv[i]); + if (args[i] == NULL) { + int j; + for (j = 0; j < i; ++j) { + free(args[j]); + } + free(args); + return NULL; + } + } + return args; +} + +// Evaluate the expressions in argv, returning an array of Value* +// results. If any evaluate to NULL, free the rest and return NULL. +// The caller is responsible for freeing the returned array and the +// Values it contains. +Value** ReadValueVarArgs(State* state, int argc, Expr* argv[]) { + Value** args = (Value**)malloc(argc * sizeof(Value*)); + int i = 0; + for (i = 0; i < argc; ++i) { + args[i] = EvaluateValue(state, argv[i]); + if (args[i] == NULL) { + int j; + for (j = 0; j < i; ++j) { + FreeValue(args[j]); + } + free(args); + return NULL; + } + } + return args; +} + +static void ErrorAbortV(State* state, const char* format, va_list ap) { + std::string buffer; + android::base::StringAppendV(&buffer, format, ap); + free(state->errmsg); + state->errmsg = strdup(buffer.c_str()); + return; +} + +// Use printf-style arguments to compose an error message to put into +// *state. Returns nullptr. +Value* ErrorAbort(State* state, const char* format, ...) { + va_list ap; + va_start(ap, format); + ErrorAbortV(state, format, ap); + va_end(ap); + return nullptr; +} + +Value* ErrorAbort(State* state, CauseCode cause_code, const char* format, ...) { + va_list ap; + va_start(ap, format); + ErrorAbortV(state, format, ap); + va_end(ap); + state->cause_code = cause_code; + return nullptr; +} diff --git a/edify/expr.h b/edify/expr.h index a9ed2f9c5..886347991 100644 --- a/edify/expr.h +++ b/edify/expr.h @@ -19,12 +19,9 @@ #include <unistd.h> +#include "error_code.h" #include "yydefs.h" -#ifdef __cplusplus -extern "C" { -#endif - #define MAX_STRING_LEN 1024 typedef struct Expr Expr; @@ -43,6 +40,17 @@ typedef struct { // Should be NULL initially, will be either NULL or a malloc'd // pointer after Evaluate() returns. char* errmsg; + + // error code indicates the type of failure (e.g. failure to update system image) + // during the OTA process. + ErrorCode error_code = kNoError; + + // cause code provides more detailed reason of an OTA failure (e.g. fsync error) + // in addition to the error code. + CauseCode cause_code = kNoCause; + + bool is_retry = false; + } State; #define VAL_STRING 1 // data will be NULL-terminated; size doesn't count null @@ -59,7 +67,7 @@ typedef Value* (*Function)(const char* name, State* state, struct Expr { Function fn; - char* name; + const char* name; int argc; Expr** argv; int start, end; @@ -156,7 +164,13 @@ Value** ReadValueVarArgs(State* state, int argc, Expr* argv[]); // Use printf-style arguments to compose an error message to put into // *state. Returns NULL. -Value* ErrorAbort(State* state, const char* format, ...) __attribute__((format(printf, 2, 3))); +Value* ErrorAbort(State* state, const char* format, ...) + __attribute__((format(printf, 2, 3), deprecated)); + +// ErrorAbort has an optional (but recommended) argument 'cause_code'. If the cause code +// is set, it will be logged into last_install and provides reason of OTA failures. +Value* ErrorAbort(State* state, CauseCode cause_code, const char* format, ...) + __attribute__((format(printf, 3, 4))); // Wrap a string into a Value, taking ownership of the string. Value* StringValue(char* str); @@ -166,8 +180,4 @@ void FreeValue(Value* v); int parse_string(const char* str, Expr** root, int* error_count); -#ifdef __cplusplus -} // extern "C" -#endif - #endif // _EXPRESSION_H diff --git a/edify/lexer.l b/edify/lexer.l deleted file mode 100644 index fb2933bee..000000000 --- a/edify/lexer.l +++ /dev/null @@ -1,112 +0,0 @@ -%{ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <string.h> - -#include "expr.h" -#include "yydefs.h" -#include "parser.h" - -int gLine = 1; -int gColumn = 1; -int gPos = 0; - -// TODO: enforce MAX_STRING_LEN during lexing -char string_buffer[MAX_STRING_LEN]; -char* string_pos; - -#define ADVANCE do {yylloc.start=gPos; yylloc.end=gPos+yyleng; \ - gColumn+=yyleng; gPos+=yyleng;} while(0) - -%} - -%x STR - -%option noyywrap - -%% - - -\" { - BEGIN(STR); - string_pos = string_buffer; - yylloc.start = gPos; - ++gColumn; - ++gPos; -} - -<STR>{ - \" { - ++gColumn; - ++gPos; - BEGIN(INITIAL); - *string_pos = '\0'; - yylval.str = strdup(string_buffer); - yylloc.end = gPos; - return STRING; - } - - \\n { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\n'; } - \\t { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\t'; } - \\\" { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\"'; } - \\\\ { gColumn += yyleng; gPos += yyleng; *string_pos++ = '\\'; } - - \\x[0-9a-fA-F]{2} { - gColumn += yyleng; - gPos += yyleng; - int val; - sscanf(yytext+2, "%x", &val); - *string_pos++ = val; - } - - \n { - ++gLine; - ++gPos; - gColumn = 1; - *string_pos++ = yytext[0]; - } - - . { - ++gColumn; - ++gPos; - *string_pos++ = yytext[0]; - } -} - -if ADVANCE; return IF; -then ADVANCE; return THEN; -else ADVANCE; return ELSE; -endif ADVANCE; return ENDIF; - -[a-zA-Z0-9_:/.]+ { - ADVANCE; - yylval.str = strdup(yytext); - return STRING; -} - -\&\& ADVANCE; return AND; -\|\| ADVANCE; return OR; -== ADVANCE; return EQ; -!= ADVANCE; return NE; - -[+(),!;] ADVANCE; return yytext[0]; - -[ \t]+ ADVANCE; - -(#.*)?\n gPos += yyleng; ++gLine; gColumn = 1; - -. return BAD; diff --git a/edify/lexer.ll b/edify/lexer.ll new file mode 100644 index 000000000..b764d1699 --- /dev/null +++ b/edify/lexer.ll @@ -0,0 +1,110 @@ +%{ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <string.h> +#include <string> + +#include "expr.h" +#include "yydefs.h" +#include "parser.h" + +int gLine = 1; +int gColumn = 1; +int gPos = 0; + +std::string string_buffer; + +#define ADVANCE do {yylloc.start=gPos; yylloc.end=gPos+yyleng; \ + gColumn+=yyleng; gPos+=yyleng;} while(0) + +%} + +%x STR + +%option noyywrap + +%% + + +\" { + BEGIN(STR); + string_buffer.clear(); + yylloc.start = gPos; + ++gColumn; + ++gPos; +} + +<STR>{ + \" { + ++gColumn; + ++gPos; + BEGIN(INITIAL); + yylval.str = strdup(string_buffer.c_str()); + yylloc.end = gPos; + return STRING; + } + + \\n { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\n'); } + \\t { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\t'); } + \\\" { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\"'); } + \\\\ { gColumn += yyleng; gPos += yyleng; string_buffer.push_back('\\'); } + + \\x[0-9a-fA-F]{2} { + gColumn += yyleng; + gPos += yyleng; + int val; + sscanf(yytext+2, "%x", &val); + string_buffer.push_back(static_cast<char>(val)); + } + + \n { + ++gLine; + ++gPos; + gColumn = 1; + string_buffer.push_back(yytext[0]); + } + + . { + ++gColumn; + ++gPos; + string_buffer.push_back(yytext[0]); + } +} + +if ADVANCE; return IF; +then ADVANCE; return THEN; +else ADVANCE; return ELSE; +endif ADVANCE; return ENDIF; + +[a-zA-Z0-9_:/.]+ { + ADVANCE; + yylval.str = strdup(yytext); + return STRING; +} + +\&\& ADVANCE; return AND; +\|\| ADVANCE; return OR; +== ADVANCE; return EQ; +!= ADVANCE; return NE; + +[+(),!;] ADVANCE; return yytext[0]; + +[ \t]+ ADVANCE; + +(#.*)?\n gPos += yyleng; ++gLine; gColumn = 1; + +. return BAD; diff --git a/edify/main.c b/edify/main.c deleted file mode 100644 index b1baa0b13..000000000 --- a/edify/main.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "expr.h" -#include "parser.h" - -extern int yyparse(Expr** root, int* error_count); - -int expect(const char* expr_str, const char* expected, int* errors) { - Expr* e; - char* result; - - printf("."); - - int error_count = parse_string(expr_str, &e, &error_count); - if (error_count > 0) { - printf("error parsing \"%s\" (%d errors)\n", - expr_str, error_count); - ++*errors; - return 0; - } - - State state; - state.cookie = NULL; - state.script = strdup(expr_str); - state.errmsg = NULL; - - result = Evaluate(&state, e); - free(state.errmsg); - free(state.script); - if (result == NULL && expected != NULL) { - printf("error evaluating \"%s\"\n", expr_str); - ++*errors; - return 0; - } - - if (result == NULL && expected == NULL) { - return 1; - } - - if (strcmp(result, expected) != 0) { - printf("evaluating \"%s\": expected \"%s\", got \"%s\"\n", - expr_str, expected, result); - ++*errors; - free(result); - return 0; - } - - free(result); - return 1; -} - -int test() { - int errors = 0; - - expect("a", "a", &errors); - expect("\"a\"", "a", &errors); - expect("\"\\x61\"", "a", &errors); - expect("# this is a comment\n" - " a\n" - " \n", - "a", &errors); - - - // sequence operator - expect("a; b; c", "c", &errors); - - // string concat operator - expect("a + b", "ab", &errors); - expect("a + \n \"b\"", "ab", &errors); - expect("a + b +\nc\n", "abc", &errors); - - // string concat function - expect("concat(a, b)", "ab", &errors); - expect("concat(a,\n \"b\")", "ab", &errors); - expect("concat(a + b,\nc,\"d\")", "abcd", &errors); - expect("\"concat\"(a + b,\nc,\"d\")", "abcd", &errors); - - // logical and - expect("a && b", "b", &errors); - expect("a && \"\"", "", &errors); - expect("\"\" && b", "", &errors); - expect("\"\" && \"\"", "", &errors); - expect("\"\" && abort()", "", &errors); // test short-circuiting - expect("t && abort()", NULL, &errors); - - // logical or - expect("a || b", "a", &errors); - expect("a || \"\"", "a", &errors); - expect("\"\" || b", "b", &errors); - expect("\"\" || \"\"", "", &errors); - expect("a || abort()", "a", &errors); // test short-circuiting - expect("\"\" || abort()", NULL, &errors); - - // logical not - expect("!a", "", &errors); - expect("! \"\"", "t", &errors); - expect("!!a", "t", &errors); - - // precedence - expect("\"\" == \"\" && b", "b", &errors); - expect("a + b == ab", "t", &errors); - expect("ab == a + b", "t", &errors); - expect("a + (b == ab)", "a", &errors); - expect("(ab == a) + b", "b", &errors); - - // substring function - expect("is_substring(cad, abracadabra)", "t", &errors); - expect("is_substring(abrac, abracadabra)", "t", &errors); - expect("is_substring(dabra, abracadabra)", "t", &errors); - expect("is_substring(cad, abracxadabra)", "", &errors); - expect("is_substring(abrac, axbracadabra)", "", &errors); - expect("is_substring(dabra, abracadabrxa)", "", &errors); - - // ifelse function - expect("ifelse(t, yes, no)", "yes", &errors); - expect("ifelse(!t, yes, no)", "no", &errors); - expect("ifelse(t, yes, abort())", "yes", &errors); - expect("ifelse(!t, abort(), no)", "no", &errors); - - // if "statements" - expect("if t then yes else no endif", "yes", &errors); - expect("if \"\" then yes else no endif", "no", &errors); - expect("if \"\" then yes endif", "", &errors); - expect("if \"\"; t then yes endif", "yes", &errors); - - // numeric comparisons - expect("less_than_int(3, 14)", "t", &errors); - expect("less_than_int(14, 3)", "", &errors); - expect("less_than_int(x, 3)", "", &errors); - expect("less_than_int(3, x)", "", &errors); - expect("greater_than_int(3, 14)", "", &errors); - expect("greater_than_int(14, 3)", "t", &errors); - expect("greater_than_int(x, 3)", "", &errors); - expect("greater_than_int(3, x)", "", &errors); - - printf("\n"); - - return errors; -} - -void ExprDump(int depth, Expr* n, char* script) { - printf("%*s", depth*2, ""); - char temp = script[n->end]; - script[n->end] = '\0'; - printf("%s %p (%d-%d) \"%s\"\n", - n->name == NULL ? "(NULL)" : n->name, n->fn, n->start, n->end, - script+n->start); - script[n->end] = temp; - int i; - for (i = 0; i < n->argc; ++i) { - ExprDump(depth+1, n->argv[i], script); - } -} - -int main(int argc, char** argv) { - RegisterBuiltins(); - FinishRegistration(); - - if (argc == 1) { - return test() != 0; - } - - FILE* f = fopen(argv[1], "r"); - if (f == NULL) { - printf("%s: %s: No such file or directory\n", argv[0], argv[1]); - return 1; - } - char buffer[8192]; - int size = fread(buffer, 1, 8191, f); - fclose(f); - buffer[size] = '\0'; - - Expr* root; - int error_count = 0; - int error = parse_string(buffer, &root, &error_count); - printf("parse returned %d; %d errors encountered\n", error, error_count); - if (error == 0 || error_count > 0) { - - ExprDump(0, root, buffer); - - State state; - state.cookie = NULL; - state.script = buffer; - state.errmsg = NULL; - - char* result = Evaluate(&state, root); - if (result == NULL) { - printf("result was NULL, message is: %s\n", - (state.errmsg == NULL ? "(NULL)" : state.errmsg)); - free(state.errmsg); - } else { - printf("result is [%s]\n", result); - } - } - return 0; -} diff --git a/edify/main.cpp b/edify/main.cpp new file mode 100644 index 000000000..6007a3d58 --- /dev/null +++ b/edify/main.cpp @@ -0,0 +1,219 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <string> + +#include "expr.h" +#include "parser.h" + +extern int yyparse(Expr** root, int* error_count); + +int expect(const char* expr_str, const char* expected, int* errors) { + Expr* e; + char* result; + + printf("."); + + int error_count = parse_string(expr_str, &e, &error_count); + if (error_count > 0) { + printf("error parsing \"%s\" (%d errors)\n", + expr_str, error_count); + ++*errors; + return 0; + } + + State state; + state.cookie = NULL; + state.script = strdup(expr_str); + state.errmsg = NULL; + + result = Evaluate(&state, e); + free(state.errmsg); + free(state.script); + if (result == NULL && expected != NULL) { + printf("error evaluating \"%s\"\n", expr_str); + ++*errors; + return 0; + } + + if (result == NULL && expected == NULL) { + return 1; + } + + if (strcmp(result, expected) != 0) { + printf("evaluating \"%s\": expected \"%s\", got \"%s\"\n", + expr_str, expected, result); + ++*errors; + free(result); + return 0; + } + + free(result); + return 1; +} + +int test() { + int errors = 0; + + expect("a", "a", &errors); + expect("\"a\"", "a", &errors); + expect("\"\\x61\"", "a", &errors); + expect("# this is a comment\n" + " a\n" + " \n", + "a", &errors); + + + // sequence operator + expect("a; b; c", "c", &errors); + + // string concat operator + expect("a + b", "ab", &errors); + expect("a + \n \"b\"", "ab", &errors); + expect("a + b +\nc\n", "abc", &errors); + + // string concat function + expect("concat(a, b)", "ab", &errors); + expect("concat(a,\n \"b\")", "ab", &errors); + expect("concat(a + b,\nc,\"d\")", "abcd", &errors); + expect("\"concat\"(a + b,\nc,\"d\")", "abcd", &errors); + + // logical and + expect("a && b", "b", &errors); + expect("a && \"\"", "", &errors); + expect("\"\" && b", "", &errors); + expect("\"\" && \"\"", "", &errors); + expect("\"\" && abort()", "", &errors); // test short-circuiting + expect("t && abort()", NULL, &errors); + + // logical or + expect("a || b", "a", &errors); + expect("a || \"\"", "a", &errors); + expect("\"\" || b", "b", &errors); + expect("\"\" || \"\"", "", &errors); + expect("a || abort()", "a", &errors); // test short-circuiting + expect("\"\" || abort()", NULL, &errors); + + // logical not + expect("!a", "", &errors); + expect("! \"\"", "t", &errors); + expect("!!a", "t", &errors); + + // precedence + expect("\"\" == \"\" && b", "b", &errors); + expect("a + b == ab", "t", &errors); + expect("ab == a + b", "t", &errors); + expect("a + (b == ab)", "a", &errors); + expect("(ab == a) + b", "b", &errors); + + // substring function + expect("is_substring(cad, abracadabra)", "t", &errors); + expect("is_substring(abrac, abracadabra)", "t", &errors); + expect("is_substring(dabra, abracadabra)", "t", &errors); + expect("is_substring(cad, abracxadabra)", "", &errors); + expect("is_substring(abrac, axbracadabra)", "", &errors); + expect("is_substring(dabra, abracadabrxa)", "", &errors); + + // ifelse function + expect("ifelse(t, yes, no)", "yes", &errors); + expect("ifelse(!t, yes, no)", "no", &errors); + expect("ifelse(t, yes, abort())", "yes", &errors); + expect("ifelse(!t, abort(), no)", "no", &errors); + + // if "statements" + expect("if t then yes else no endif", "yes", &errors); + expect("if \"\" then yes else no endif", "no", &errors); + expect("if \"\" then yes endif", "", &errors); + expect("if \"\"; t then yes endif", "yes", &errors); + + // numeric comparisons + expect("less_than_int(3, 14)", "t", &errors); + expect("less_than_int(14, 3)", "", &errors); + expect("less_than_int(x, 3)", "", &errors); + expect("less_than_int(3, x)", "", &errors); + expect("greater_than_int(3, 14)", "", &errors); + expect("greater_than_int(14, 3)", "t", &errors); + expect("greater_than_int(x, 3)", "", &errors); + expect("greater_than_int(3, x)", "", &errors); + + // big string + expect(std::string(8192, 's').c_str(), std::string(8192, 's').c_str(), &errors); + + printf("\n"); + + return errors; +} + +void ExprDump(int depth, Expr* n, char* script) { + printf("%*s", depth*2, ""); + char temp = script[n->end]; + script[n->end] = '\0'; + printf("%s %p (%d-%d) \"%s\"\n", + n->name == NULL ? "(NULL)" : n->name, n->fn, n->start, n->end, + script+n->start); + script[n->end] = temp; + int i; + for (i = 0; i < n->argc; ++i) { + ExprDump(depth+1, n->argv[i], script); + } +} + +int main(int argc, char** argv) { + RegisterBuiltins(); + FinishRegistration(); + + if (argc == 1) { + return test() != 0; + } + + FILE* f = fopen(argv[1], "r"); + if (f == NULL) { + printf("%s: %s: No such file or directory\n", argv[0], argv[1]); + return 1; + } + char buffer[8192]; + int size = fread(buffer, 1, 8191, f); + fclose(f); + buffer[size] = '\0'; + + Expr* root; + int error_count = 0; + int error = parse_string(buffer, &root, &error_count); + printf("parse returned %d; %d errors encountered\n", error, error_count); + if (error == 0 || error_count > 0) { + + ExprDump(0, root, buffer); + + State state; + state.cookie = NULL; + state.script = buffer; + state.errmsg = NULL; + + char* result = Evaluate(&state, root); + if (result == NULL) { + printf("result was NULL, message is: %s\n", + (state.errmsg == NULL ? "(NULL)" : state.errmsg)); + free(state.errmsg); + } else { + printf("result is [%s]\n", result); + } + } + return 0; +} diff --git a/edify/parser.y b/edify/parser.y deleted file mode 100644 index f8fb2d12f..000000000 --- a/edify/parser.y +++ /dev/null @@ -1,139 +0,0 @@ -%{ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "expr.h" -#include "yydefs.h" -#include "parser.h" - -extern int gLine; -extern int gColumn; - -void yyerror(Expr** root, int* error_count, const char* s); -int yyparse(Expr** root, int* error_count); - -struct yy_buffer_state; -void yy_switch_to_buffer(struct yy_buffer_state* new_buffer); -struct yy_buffer_state* yy_scan_string(const char* yystr); - -%} - -%locations - -%union { - char* str; - Expr* expr; - struct { - int argc; - Expr** argv; - } args; -} - -%token AND OR SUBSTR SUPERSTR EQ NE IF THEN ELSE ENDIF -%token <str> STRING BAD -%type <expr> expr -%type <args> arglist - -%parse-param {Expr** root} -%parse-param {int* error_count} -%error-verbose - -/* declarations in increasing order of precedence */ -%left ';' -%left ',' -%left OR -%left AND -%left EQ NE -%left '+' -%right '!' - -%% - -input: expr { *root = $1; } -; - -expr: STRING { - $$ = malloc(sizeof(Expr)); - $$->fn = Literal; - $$->name = $1; - $$->argc = 0; - $$->argv = NULL; - $$->start = @$.start; - $$->end = @$.end; -} -| '(' expr ')' { $$ = $2; $$->start=@$.start; $$->end=@$.end; } -| expr ';' { $$ = $1; $$->start=@1.start; $$->end=@1.end; } -| expr ';' expr { $$ = Build(SequenceFn, @$, 2, $1, $3); } -| error ';' expr { $$ = $3; $$->start=@$.start; $$->end=@$.end; } -| expr '+' expr { $$ = Build(ConcatFn, @$, 2, $1, $3); } -| expr EQ expr { $$ = Build(EqualityFn, @$, 2, $1, $3); } -| expr NE expr { $$ = Build(InequalityFn, @$, 2, $1, $3); } -| expr AND expr { $$ = Build(LogicalAndFn, @$, 2, $1, $3); } -| expr OR expr { $$ = Build(LogicalOrFn, @$, 2, $1, $3); } -| '!' expr { $$ = Build(LogicalNotFn, @$, 1, $2); } -| IF expr THEN expr ENDIF { $$ = Build(IfElseFn, @$, 2, $2, $4); } -| IF expr THEN expr ELSE expr ENDIF { $$ = Build(IfElseFn, @$, 3, $2, $4, $6); } -| STRING '(' arglist ')' { - $$ = malloc(sizeof(Expr)); - $$->fn = FindFunction($1); - if ($$->fn == NULL) { - char buffer[256]; - snprintf(buffer, sizeof(buffer), "unknown function \"%s\"", $1); - yyerror(root, error_count, buffer); - YYERROR; - } - $$->name = $1; - $$->argc = $3.argc; - $$->argv = $3.argv; - $$->start = @$.start; - $$->end = @$.end; -} -; - -arglist: /* empty */ { - $$.argc = 0; - $$.argv = NULL; -} -| expr { - $$.argc = 1; - $$.argv = malloc(sizeof(Expr*)); - $$.argv[0] = $1; -} -| arglist ',' expr { - $$.argc = $1.argc + 1; - $$.argv = realloc($$.argv, $$.argc * sizeof(Expr*)); - $$.argv[$$.argc-1] = $3; -} -; - -%% - -void yyerror(Expr** root, int* error_count, const char* s) { - if (strlen(s) == 0) { - s = "syntax error"; - } - printf("line %d col %d: %s\n", gLine, gColumn, s); - ++*error_count; -} - -int parse_string(const char* str, Expr** root, int* error_count) { - yy_switch_to_buffer(yy_scan_string(str)); - return yyparse(root, error_count); -} diff --git a/edify/parser.yy b/edify/parser.yy new file mode 100644 index 000000000..098a6370a --- /dev/null +++ b/edify/parser.yy @@ -0,0 +1,139 @@ +%{ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "expr.h" +#include "yydefs.h" +#include "parser.h" + +extern int gLine; +extern int gColumn; + +void yyerror(Expr** root, int* error_count, const char* s); +int yyparse(Expr** root, int* error_count); + +struct yy_buffer_state; +void yy_switch_to_buffer(struct yy_buffer_state* new_buffer); +struct yy_buffer_state* yy_scan_string(const char* yystr); + +%} + +%locations + +%union { + char* str; + Expr* expr; + struct { + int argc; + Expr** argv; + } args; +} + +%token AND OR SUBSTR SUPERSTR EQ NE IF THEN ELSE ENDIF +%token <str> STRING BAD +%type <expr> expr +%type <args> arglist + +%parse-param {Expr** root} +%parse-param {int* error_count} +%error-verbose + +/* declarations in increasing order of precedence */ +%left ';' +%left ',' +%left OR +%left AND +%left EQ NE +%left '+' +%right '!' + +%% + +input: expr { *root = $1; } +; + +expr: STRING { + $$ = reinterpret_cast<Expr*>(malloc(sizeof(Expr))); + $$->fn = Literal; + $$->name = $1; + $$->argc = 0; + $$->argv = NULL; + $$->start = @$.start; + $$->end = @$.end; +} +| '(' expr ')' { $$ = $2; $$->start=@$.start; $$->end=@$.end; } +| expr ';' { $$ = $1; $$->start=@1.start; $$->end=@1.end; } +| expr ';' expr { $$ = Build(SequenceFn, @$, 2, $1, $3); } +| error ';' expr { $$ = $3; $$->start=@$.start; $$->end=@$.end; } +| expr '+' expr { $$ = Build(ConcatFn, @$, 2, $1, $3); } +| expr EQ expr { $$ = Build(EqualityFn, @$, 2, $1, $3); } +| expr NE expr { $$ = Build(InequalityFn, @$, 2, $1, $3); } +| expr AND expr { $$ = Build(LogicalAndFn, @$, 2, $1, $3); } +| expr OR expr { $$ = Build(LogicalOrFn, @$, 2, $1, $3); } +| '!' expr { $$ = Build(LogicalNotFn, @$, 1, $2); } +| IF expr THEN expr ENDIF { $$ = Build(IfElseFn, @$, 2, $2, $4); } +| IF expr THEN expr ELSE expr ENDIF { $$ = Build(IfElseFn, @$, 3, $2, $4, $6); } +| STRING '(' arglist ')' { + $$ = reinterpret_cast<Expr*>(malloc(sizeof(Expr))); + $$->fn = FindFunction($1); + if ($$->fn == NULL) { + char buffer[256]; + snprintf(buffer, sizeof(buffer), "unknown function \"%s\"", $1); + yyerror(root, error_count, buffer); + YYERROR; + } + $$->name = $1; + $$->argc = $3.argc; + $$->argv = $3.argv; + $$->start = @$.start; + $$->end = @$.end; +} +; + +arglist: /* empty */ { + $$.argc = 0; + $$.argv = NULL; +} +| expr { + $$.argc = 1; + $$.argv = reinterpret_cast<Expr**>(malloc(sizeof(Expr*))); + $$.argv[0] = $1; +} +| arglist ',' expr { + $$.argc = $1.argc + 1; + $$.argv = reinterpret_cast<Expr**>(realloc($$.argv, $$.argc * sizeof(Expr*))); + $$.argv[$$.argc-1] = $3; +} +; + +%% + +void yyerror(Expr** root, int* error_count, const char* s) { + if (strlen(s) == 0) { + s = "syntax error"; + } + printf("line %d col %d: %s\n", gLine, gColumn, s); + ++*error_count; +} + +int parse_string(const char* str, Expr** root, int* error_count) { + yy_switch_to_buffer(yy_scan_string(str)); + return yyparse(root, error_count); +} diff --git a/error_code.h b/error_code.h new file mode 100644 index 000000000..259319ab4 --- /dev/null +++ b/error_code.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef _ERROR_CODE_H_ +#define _ERROR_CODE_H_ + +enum ErrorCode { + kNoError = -1, + kLowBattery = 20, + kZipVerificationFailure, + kZipOpenFailure +}; + +enum CauseCode { + kNoCause = -1, + kArgsParsingFailure = 100, + kStashCreationFailure, + kFileOpenFailure, + kLseekFailure, + kFreadFailure, + kFwriteFailure, + kFsyncFailure, + kLibfecFailure, + kFileGetPropFailure, + kFileRenameFailure, + kSymlinkFailure, + kSetMetadataFailure, + kTune2FsFailure, + kRebootFailure, + kVendorFailure = 200 +}; + +#endif diff --git a/etc/init.rc b/etc/init.rc index 427727768..5915b8d80 100644 --- a/etc/init.rc +++ b/etc/init.rc @@ -1,11 +1,13 @@ import /init.recovery.${ro.hardware}.rc on early-init + # Set the security context of /postinstall if present. + restorecon /postinstall + start ueventd start healthd on init - export PATH /sbin:/system/bin export ANDROID_ROOT /system export ANDROID_DATA /data export EXTERNAL_STORAGE /sdcard diff --git a/fuse_sdcard_provider.c b/fuse_sdcard_provider.c deleted file mode 100644 index 4565c7b5b..000000000 --- a/fuse_sdcard_provider.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <pthread.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> - -#include "fuse_sideload.h" - -struct file_data { - int fd; // the underlying sdcard file - - uint64_t file_size; - uint32_t block_size; -}; - -static int read_block_file(void* cookie, uint32_t block, uint8_t* buffer, uint32_t fetch_size) { - struct file_data* fd = (struct file_data*)cookie; - - off64_t offset = ((off64_t) block) * fd->block_size; - if (TEMP_FAILURE_RETRY(lseek64(fd->fd, offset, SEEK_SET)) == -1) { - fprintf(stderr, "seek on sdcard failed: %s\n", strerror(errno)); - return -EIO; - } - - while (fetch_size > 0) { - ssize_t r = TEMP_FAILURE_RETRY(read(fd->fd, buffer, fetch_size)); - if (r == -1) { - fprintf(stderr, "read on sdcard failed: %s\n", strerror(errno)); - return -EIO; - } - fetch_size -= r; - buffer += r; - } - - return 0; -} - -static void close_file(void* cookie) { - struct file_data* fd = (struct file_data*)cookie; - close(fd->fd); -} - -struct token { - pthread_t th; - const char* path; - int result; -}; - -static void* run_sdcard_fuse(void* cookie) { - struct token* t = (struct token*)cookie; - - struct stat sb; - if (stat(t->path, &sb) < 0) { - fprintf(stderr, "failed to stat %s: %s\n", t->path, strerror(errno)); - t->result = -1; - return NULL; - } - - struct file_data fd; - struct provider_vtab vtab; - - fd.fd = open(t->path, O_RDONLY); - if (fd.fd < 0) { - fprintf(stderr, "failed to open %s: %s\n", t->path, strerror(errno)); - t->result = -1; - return NULL; - } - fd.file_size = sb.st_size; - fd.block_size = 65536; - - vtab.read_block = read_block_file; - vtab.close = close_file; - - t->result = run_fuse_sideload(&vtab, &fd, fd.file_size, fd.block_size); - return NULL; -} - -// How long (in seconds) we wait for the fuse-provided package file to -// appear, before timing out. -#define SDCARD_INSTALL_TIMEOUT 10 - -void* start_sdcard_fuse(const char* path) { - struct token* t = malloc(sizeof(struct token)); - - t->path = path; - pthread_create(&(t->th), NULL, run_sdcard_fuse, t); - - struct stat st; - int i; - for (i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) { - if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) { - if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) { - sleep(1); - continue; - } else { - return NULL; - } - } - } - - // The installation process expects to find the sdcard unmounted. - // Unmount it with MNT_DETACH so that our open file continues to - // work but new references see it as unmounted. - umount2("/sdcard", MNT_DETACH); - - return t; -} - -void finish_sdcard_fuse(void* cookie) { - if (cookie == NULL) return; - struct token* t = (struct token*)cookie; - - // Calling stat() on this magic filename signals the fuse - // filesystem to shut down. - struct stat st; - stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st); - - pthread_join(t->th, NULL); - free(t); -} diff --git a/fuse_sdcard_provider.cpp b/fuse_sdcard_provider.cpp new file mode 100644 index 000000000..df9631272 --- /dev/null +++ b/fuse_sdcard_provider.cpp @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <sys/mount.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> + +#include "fuse_sideload.h" + +struct file_data { + int fd; // the underlying sdcard file + + uint64_t file_size; + uint32_t block_size; +}; + +static int read_block_file(void* cookie, uint32_t block, uint8_t* buffer, uint32_t fetch_size) { + file_data* fd = reinterpret_cast<file_data*>(cookie); + + off64_t offset = ((off64_t) block) * fd->block_size; + if (TEMP_FAILURE_RETRY(lseek64(fd->fd, offset, SEEK_SET)) == -1) { + fprintf(stderr, "seek on sdcard failed: %s\n", strerror(errno)); + return -EIO; + } + + while (fetch_size > 0) { + ssize_t r = TEMP_FAILURE_RETRY(read(fd->fd, buffer, fetch_size)); + if (r == -1) { + fprintf(stderr, "read on sdcard failed: %s\n", strerror(errno)); + return -EIO; + } + fetch_size -= r; + buffer += r; + } + + return 0; +} + +static void close_file(void* cookie) { + file_data* fd = reinterpret_cast<file_data*>(cookie); + close(fd->fd); +} + +bool start_sdcard_fuse(const char* path) { + struct stat sb; + if (stat(path, &sb) == -1) { + fprintf(stderr, "failed to stat %s: %s\n", path, strerror(errno)); + return false; + } + + file_data fd; + fd.fd = open(path, O_RDONLY); + if (fd.fd == -1) { + fprintf(stderr, "failed to open %s: %s\n", path, strerror(errno)); + return false; + } + fd.file_size = sb.st_size; + fd.block_size = 65536; + + provider_vtab vtab; + vtab.read_block = read_block_file; + vtab.close = close_file; + + // The installation process expects to find the sdcard unmounted. + // Unmount it with MNT_DETACH so that our open file continues to + // work but new references see it as unmounted. + umount2("/sdcard", MNT_DETACH); + + return run_fuse_sideload(&vtab, &fd, fd.file_size, fd.block_size) == 0; +} diff --git a/fuse_sdcard_provider.h b/fuse_sdcard_provider.h index dbfbcd521..bdc60f2ba 100644 --- a/fuse_sdcard_provider.h +++ b/fuse_sdcard_provider.h @@ -17,13 +17,6 @@ #ifndef __FUSE_SDCARD_PROVIDER_H #define __FUSE_SDCARD_PROVIDER_H -#include <sys/cdefs.h> - -__BEGIN_DECLS - -void* start_sdcard_fuse(const char* path); -void finish_sdcard_fuse(void* token); - -__END_DECLS +bool start_sdcard_fuse(const char* path); #endif diff --git a/fuse_sideload.c b/fuse_sideload.c deleted file mode 100644 index 48e6cc53a..000000000 --- a/fuse_sideload.c +++ /dev/null @@ -1,527 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -// This module creates a special filesystem containing two files. -// -// "/sideload/package.zip" appears to be a normal file, but reading -// from it causes data to be fetched from the adb host. We can use -// this to sideload packages over an adb connection without having to -// store the entire package in RAM on the device. -// -// Because we may not trust the adb host, this filesystem maintains -// the following invariant: each read of a given position returns the -// same data as the first read at that position. That is, once a -// section of the file is read, future reads of that section return -// the same data. (Otherwise, a malicious adb host process could -// return one set of bits when the package is read for signature -// verification, and then different bits for when the package is -// accessed by the installer.) If the adb host returns something -// different than it did on the first read, the reader of the file -// will see their read fail with EINVAL. -// -// The other file, "/sideload/exit", is used to control the subprocess -// that creates this filesystem. Calling stat() on the exit file -// causes the filesystem to be unmounted and the adb process on the -// device shut down. -// -// Note that only the minimal set of file operations needed for these -// two files is implemented. In particular, you can't opendir() or -// readdir() on the "/sideload" directory; ls on it won't work. - -#include <ctype.h> -#include <dirent.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <linux/fuse.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/inotify.h> -#include <sys/mount.h> -#include <sys/param.h> -#include <sys/resource.h> -#include <sys/stat.h> -#include <sys/statfs.h> -#include <sys/time.h> -#include <sys/uio.h> -#include <unistd.h> - -#include "mincrypt/sha256.h" -#include "fuse_sideload.h" - -#define PACKAGE_FILE_ID (FUSE_ROOT_ID+1) -#define EXIT_FLAG_ID (FUSE_ROOT_ID+2) - -#define NO_STATUS 1 -#define NO_STATUS_EXIT 2 - -struct fuse_data { - int ffd; // file descriptor for the fuse socket - - struct provider_vtab* vtab; - void* cookie; - - uint64_t file_size; // bytes - - uint32_t block_size; // block size that the adb host is using to send the file to us - uint32_t file_blocks; // file size in block_size blocks - - uid_t uid; - gid_t gid; - - uint32_t curr_block; // cache the block most recently read from the host - uint8_t* block_data; - - uint8_t* extra_block; // another block of storage for reads that - // span two blocks - - uint8_t* hashes; // SHA-256 hash of each block (all zeros - // if block hasn't been read yet) -}; - -static void fuse_reply(struct fuse_data* fd, __u64 unique, const void *data, size_t len) -{ - struct fuse_out_header hdr; - struct iovec vec[2]; - int res; - - hdr.len = len + sizeof(hdr); - hdr.error = 0; - hdr.unique = unique; - - vec[0].iov_base = &hdr; - vec[0].iov_len = sizeof(hdr); - vec[1].iov_base = /* const_cast */(void*)(data); - vec[1].iov_len = len; - - res = writev(fd->ffd, vec, 2); - if (res < 0) { - printf("*** REPLY FAILED *** %s\n", strerror(errno)); - } -} - -static int handle_init(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - const struct fuse_init_in* req = data; - struct fuse_init_out out; - size_t fuse_struct_size; - - - /* Kernel 2.6.16 is the first stable kernel with struct fuse_init_out - * defined (fuse version 7.6). The structure is the same from 7.6 through - * 7.22. Beginning with 7.23, the structure increased in size and added - * new parameters. - */ - if (req->major != FUSE_KERNEL_VERSION || req->minor < 6) { - printf("Fuse kernel version mismatch: Kernel version %d.%d, Expected at least %d.6", - req->major, req->minor, FUSE_KERNEL_VERSION); - return -1; - } - - out.minor = MIN(req->minor, FUSE_KERNEL_MINOR_VERSION); - fuse_struct_size = sizeof(out); -#if defined(FUSE_COMPAT_22_INIT_OUT_SIZE) - /* FUSE_KERNEL_VERSION >= 23. */ - - /* If the kernel only works on minor revs older than or equal to 22, - * then use the older structure size since this code only uses the 7.22 - * version of the structure. */ - if (req->minor <= 22) { - fuse_struct_size = FUSE_COMPAT_22_INIT_OUT_SIZE; - } -#endif - - out.major = FUSE_KERNEL_VERSION; - out.max_readahead = req->max_readahead; - out.flags = 0; - out.max_background = 32; - out.congestion_threshold = 32; - out.max_write = 4096; - fuse_reply(fd, hdr->unique, &out, fuse_struct_size); - - return NO_STATUS; -} - -static void fill_attr(struct fuse_attr* attr, struct fuse_data* fd, - uint64_t nodeid, uint64_t size, uint32_t mode) { - memset(attr, 0, sizeof(*attr)); - attr->nlink = 1; - attr->uid = fd->uid; - attr->gid = fd->gid; - attr->blksize = 4096; - - attr->ino = nodeid; - attr->size = size; - attr->blocks = (size == 0) ? 0 : (((size-1) / attr->blksize) + 1); - attr->mode = mode; -} - -static int handle_getattr(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - const struct fuse_getattr_in* req = data; - struct fuse_attr_out out; - memset(&out, 0, sizeof(out)); - out.attr_valid = 10; - - if (hdr->nodeid == FUSE_ROOT_ID) { - fill_attr(&(out.attr), fd, hdr->nodeid, 4096, S_IFDIR | 0555); - } else if (hdr->nodeid == PACKAGE_FILE_ID) { - fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444); - } else if (hdr->nodeid == EXIT_FLAG_ID) { - fill_attr(&(out.attr), fd, EXIT_FLAG_ID, 0, S_IFREG | 0); - } else { - return -ENOENT; - } - - fuse_reply(fd, hdr->unique, &out, sizeof(out)); - return (hdr->nodeid == EXIT_FLAG_ID) ? NO_STATUS_EXIT : NO_STATUS; -} - -static int handle_lookup(void* data, struct fuse_data* fd, - const struct fuse_in_header* hdr) { - struct fuse_entry_out out; - memset(&out, 0, sizeof(out)); - out.entry_valid = 10; - out.attr_valid = 10; - - if (strncmp(FUSE_SIDELOAD_HOST_FILENAME, data, - sizeof(FUSE_SIDELOAD_HOST_FILENAME)) == 0) { - out.nodeid = PACKAGE_FILE_ID; - out.generation = PACKAGE_FILE_ID; - fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444); - } else if (strncmp(FUSE_SIDELOAD_HOST_EXIT_FLAG, data, - sizeof(FUSE_SIDELOAD_HOST_EXIT_FLAG)) == 0) { - out.nodeid = EXIT_FLAG_ID; - out.generation = EXIT_FLAG_ID; - fill_attr(&(out.attr), fd, EXIT_FLAG_ID, 0, S_IFREG | 0); - } else { - return -ENOENT; - } - - fuse_reply(fd, hdr->unique, &out, sizeof(out)); - return (out.nodeid == EXIT_FLAG_ID) ? NO_STATUS_EXIT : NO_STATUS; -} - -static int handle_open(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - const struct fuse_open_in* req = data; - - if (hdr->nodeid == EXIT_FLAG_ID) return -EPERM; - if (hdr->nodeid != PACKAGE_FILE_ID) return -ENOENT; - - struct fuse_open_out out; - memset(&out, 0, sizeof(out)); - out.fh = 10; // an arbitrary number; we always use the same handle - fuse_reply(fd, hdr->unique, &out, sizeof(out)); - return NO_STATUS; -} - -static int handle_flush(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - return 0; -} - -static int handle_release(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - return 0; -} - -// Fetch a block from the host into fd->curr_block and fd->block_data. -// Returns 0 on successful fetch, negative otherwise. -static int fetch_block(struct fuse_data* fd, uint32_t block) { - if (block == fd->curr_block) { - return 0; - } - - if (block >= fd->file_blocks) { - memset(fd->block_data, 0, fd->block_size); - fd->curr_block = block; - return 0; - } - - size_t fetch_size = fd->block_size; - if (block * fd->block_size + fetch_size > fd->file_size) { - // If we're reading the last (partial) block of the file, - // expect a shorter response from the host, and pad the rest - // of the block with zeroes. - fetch_size = fd->file_size - (block * fd->block_size); - memset(fd->block_data + fetch_size, 0, fd->block_size - fetch_size); - } - - int result = fd->vtab->read_block(fd->cookie, block, fd->block_data, fetch_size); - if (result < 0) return result; - - fd->curr_block = block; - - // Verify the hash of the block we just got from the host. - // - // - If the hash of the just-received data matches the stored hash - // for the block, accept it. - // - If the stored hash is all zeroes, store the new hash and - // accept the block (this is the first time we've read this - // block). - // - Otherwise, return -EINVAL for the read. - - uint8_t hash[SHA256_DIGEST_SIZE]; - SHA256_hash(fd->block_data, fd->block_size, hash); - uint8_t* blockhash = fd->hashes + block * SHA256_DIGEST_SIZE; - if (memcmp(hash, blockhash, SHA256_DIGEST_SIZE) == 0) { - return 0; - } - - int i; - for (i = 0; i < SHA256_DIGEST_SIZE; ++i) { - if (blockhash[i] != 0) { - fd->curr_block = -1; - return -EIO; - } - } - - memcpy(blockhash, hash, SHA256_DIGEST_SIZE); - return 0; -} - -static int handle_read(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { - const struct fuse_read_in* req = data; - struct fuse_out_header outhdr; - struct iovec vec[3]; - int vec_used; - int result; - - if (hdr->nodeid != PACKAGE_FILE_ID) return -ENOENT; - - uint64_t offset = req->offset; - uint32_t size = req->size; - - // The docs on the fuse kernel interface are vague about what to - // do when a read request extends past the end of the file. We - // can return a short read -- the return structure does include a - // length field -- but in testing that caused the program using - // the file to segfault. (I speculate that this is due to the - // reading program accessing it via mmap; maybe mmap dislikes when - // you return something short of a whole page?) To fix this we - // zero-pad reads that extend past the end of the file so we're - // always returning exactly as many bytes as were requested. - // (Users of the mapped file have to know its real length anyway.) - - outhdr.len = sizeof(outhdr) + size; - outhdr.error = 0; - outhdr.unique = hdr->unique; - vec[0].iov_base = &outhdr; - vec[0].iov_len = sizeof(outhdr); - - uint32_t block = offset / fd->block_size; - result = fetch_block(fd, block); - if (result != 0) return result; - - // Two cases: - // - // - the read request is entirely within this block. In this - // case we can reply immediately. - // - // - the read request goes over into the next block. Note that - // since we mount the filesystem with max_read=block_size, a - // read can never span more than two blocks. In this case we - // copy the block to extra_block and issue a fetch for the - // following block. - - uint32_t block_offset = offset - (block * fd->block_size); - - if (size + block_offset <= fd->block_size) { - // First case: the read fits entirely in the first block. - - vec[1].iov_base = fd->block_data + block_offset; - vec[1].iov_len = size; - vec_used = 2; - } else { - // Second case: the read spills over into the next block. - - memcpy(fd->extra_block, fd->block_data + block_offset, - fd->block_size - block_offset); - vec[1].iov_base = fd->extra_block; - vec[1].iov_len = fd->block_size - block_offset; - - result = fetch_block(fd, block+1); - if (result != 0) return result; - vec[2].iov_base = fd->block_data; - vec[2].iov_len = size - vec[1].iov_len; - vec_used = 3; - } - - if (writev(fd->ffd, vec, vec_used) < 0) { - printf("*** READ REPLY FAILED: %s ***\n", strerror(errno)); - } - return NO_STATUS; -} - -int run_fuse_sideload(struct provider_vtab* vtab, void* cookie, - uint64_t file_size, uint32_t block_size) -{ - int result; - - // If something's already mounted on our mountpoint, try to remove - // it. (Mostly in case of a previous abnormal exit.) - umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_FORCE); - - if (block_size < 1024) { - fprintf(stderr, "block size (%u) is too small\n", block_size); - return -1; - } - if (block_size > (1<<22)) { // 4 MiB - fprintf(stderr, "block size (%u) is too large\n", block_size); - return -1; - } - - struct fuse_data fd; - memset(&fd, 0, sizeof(fd)); - fd.vtab = vtab; - fd.cookie = cookie; - fd.file_size = file_size; - fd.block_size = block_size; - fd.file_blocks = (file_size == 0) ? 0 : (((file_size-1) / block_size) + 1); - - if (fd.file_blocks > (1<<18)) { - fprintf(stderr, "file has too many blocks (%u)\n", fd.file_blocks); - result = -1; - goto done; - } - - fd.hashes = (uint8_t*)calloc(fd.file_blocks, SHA256_DIGEST_SIZE); - if (fd.hashes == NULL) { - fprintf(stderr, "failed to allocate %d bites for hashes\n", - fd.file_blocks * SHA256_DIGEST_SIZE); - result = -1; - goto done; - } - - fd.uid = getuid(); - fd.gid = getgid(); - - fd.curr_block = -1; - fd.block_data = (uint8_t*)malloc(block_size); - if (fd.block_data == NULL) { - fprintf(stderr, "failed to allocate %d bites for block_data\n", block_size); - result = -1; - goto done; - } - fd.extra_block = (uint8_t*)malloc(block_size); - if (fd.extra_block == NULL) { - fprintf(stderr, "failed to allocate %d bites for extra_block\n", block_size); - result = -1; - goto done; - } - - fd.ffd = open("/dev/fuse", O_RDWR); - if (fd.ffd < 0) { - perror("open /dev/fuse"); - result = -1; - goto done; - } - - char opts[256]; - snprintf(opts, sizeof(opts), - ("fd=%d,user_id=%d,group_id=%d,max_read=%u," - "allow_other,rootmode=040000"), - fd.ffd, fd.uid, fd.gid, block_size); - - result = mount("/dev/fuse", FUSE_SIDELOAD_HOST_MOUNTPOINT, - "fuse", MS_NOSUID | MS_NODEV | MS_RDONLY | MS_NOEXEC, opts); - if (result < 0) { - perror("mount"); - goto done; - } - uint8_t request_buffer[sizeof(struct fuse_in_header) + PATH_MAX*8]; - for (;;) { - ssize_t len = TEMP_FAILURE_RETRY(read(fd.ffd, request_buffer, sizeof(request_buffer))); - if (len == -1) { - perror("read request"); - if (errno == ENODEV) { - result = -1; - break; - } - continue; - } - - if ((size_t)len < sizeof(struct fuse_in_header)) { - fprintf(stderr, "request too short: len=%zu\n", (size_t)len); - continue; - } - - struct fuse_in_header* hdr = (struct fuse_in_header*) request_buffer; - void* data = request_buffer + sizeof(struct fuse_in_header); - - result = -ENOSYS; - - switch (hdr->opcode) { - case FUSE_INIT: - result = handle_init(data, &fd, hdr); - break; - - case FUSE_LOOKUP: - result = handle_lookup(data, &fd, hdr); - break; - - case FUSE_GETATTR: - result = handle_getattr(data, &fd, hdr); - break; - - case FUSE_OPEN: - result = handle_open(data, &fd, hdr); - break; - - case FUSE_READ: - result = handle_read(data, &fd, hdr); - break; - - case FUSE_FLUSH: - result = handle_flush(data, &fd, hdr); - break; - - case FUSE_RELEASE: - result = handle_release(data, &fd, hdr); - break; - - default: - fprintf(stderr, "unknown fuse request opcode %d\n", hdr->opcode); - break; - } - - if (result == NO_STATUS_EXIT) { - result = 0; - break; - } - - if (result != NO_STATUS) { - struct fuse_out_header outhdr; - outhdr.len = sizeof(outhdr); - outhdr.error = result; - outhdr.unique = hdr->unique; - TEMP_FAILURE_RETRY(write(fd.ffd, &outhdr, sizeof(outhdr))); - } - } - - done: - fd.vtab->close(fd.cookie); - - result = umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_DETACH); - if (result < 0) { - printf("fuse_sideload umount failed: %s\n", strerror(errno)); - } - - if (fd.ffd) close(fd.ffd); - free(fd.hashes); - free(fd.block_data); - free(fd.extra_block); - - return result; -} diff --git a/fuse_sideload.cpp b/fuse_sideload.cpp new file mode 100644 index 000000000..1725e8823 --- /dev/null +++ b/fuse_sideload.cpp @@ -0,0 +1,525 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// This module creates a special filesystem containing two files. +// +// "/sideload/package.zip" appears to be a normal file, but reading +// from it causes data to be fetched from the adb host. We can use +// this to sideload packages over an adb connection without having to +// store the entire package in RAM on the device. +// +// Because we may not trust the adb host, this filesystem maintains +// the following invariant: each read of a given position returns the +// same data as the first read at that position. That is, once a +// section of the file is read, future reads of that section return +// the same data. (Otherwise, a malicious adb host process could +// return one set of bits when the package is read for signature +// verification, and then different bits for when the package is +// accessed by the installer.) If the adb host returns something +// different than it did on the first read, the reader of the file +// will see their read fail with EINVAL. +// +// The other file, "/sideload/exit", is used to control the subprocess +// that creates this filesystem. Calling stat() on the exit file +// causes the filesystem to be unmounted and the adb process on the +// device shut down. +// +// Note that only the minimal set of file operations needed for these +// two files is implemented. In particular, you can't opendir() or +// readdir() on the "/sideload" directory; ls on it won't work. + +#include <ctype.h> +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <linux/fuse.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/inotify.h> +#include <sys/mount.h> +#include <sys/param.h> +#include <sys/resource.h> +#include <sys/stat.h> +#include <sys/statfs.h> +#include <sys/time.h> +#include <sys/uio.h> +#include <unistd.h> + +#include <openssl/sha.h> + +#include "fuse_sideload.h" + +#define PACKAGE_FILE_ID (FUSE_ROOT_ID+1) +#define EXIT_FLAG_ID (FUSE_ROOT_ID+2) + +#define NO_STATUS 1 +#define NO_STATUS_EXIT 2 + +struct fuse_data { + int ffd; // file descriptor for the fuse socket + + struct provider_vtab* vtab; + void* cookie; + + uint64_t file_size; // bytes + + uint32_t block_size; // block size that the adb host is using to send the file to us + uint32_t file_blocks; // file size in block_size blocks + + uid_t uid; + gid_t gid; + + uint32_t curr_block; // cache the block most recently read from the host + uint8_t* block_data; + + uint8_t* extra_block; // another block of storage for reads that + // span two blocks + + uint8_t* hashes; // SHA-256 hash of each block (all zeros + // if block hasn't been read yet) +}; + +static void fuse_reply(struct fuse_data* fd, __u64 unique, const void *data, size_t len) +{ + struct fuse_out_header hdr; + struct iovec vec[2]; + int res; + + hdr.len = len + sizeof(hdr); + hdr.error = 0; + hdr.unique = unique; + + vec[0].iov_base = &hdr; + vec[0].iov_len = sizeof(hdr); + vec[1].iov_base = /* const_cast */(void*)(data); + vec[1].iov_len = len; + + res = writev(fd->ffd, vec, 2); + if (res < 0) { + printf("*** REPLY FAILED *** %s\n", strerror(errno)); + } +} + +static int handle_init(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { + const struct fuse_init_in* req = reinterpret_cast<const struct fuse_init_in*>(data); + struct fuse_init_out out; + size_t fuse_struct_size; + + + /* Kernel 2.6.16 is the first stable kernel with struct fuse_init_out + * defined (fuse version 7.6). The structure is the same from 7.6 through + * 7.22. Beginning with 7.23, the structure increased in size and added + * new parameters. + */ + if (req->major != FUSE_KERNEL_VERSION || req->minor < 6) { + printf("Fuse kernel version mismatch: Kernel version %d.%d, Expected at least %d.6", + req->major, req->minor, FUSE_KERNEL_VERSION); + return -1; + } + + out.minor = MIN(req->minor, FUSE_KERNEL_MINOR_VERSION); + fuse_struct_size = sizeof(out); +#if defined(FUSE_COMPAT_22_INIT_OUT_SIZE) + /* FUSE_KERNEL_VERSION >= 23. */ + + /* If the kernel only works on minor revs older than or equal to 22, + * then use the older structure size since this code only uses the 7.22 + * version of the structure. */ + if (req->minor <= 22) { + fuse_struct_size = FUSE_COMPAT_22_INIT_OUT_SIZE; + } +#endif + + out.major = FUSE_KERNEL_VERSION; + out.max_readahead = req->max_readahead; + out.flags = 0; + out.max_background = 32; + out.congestion_threshold = 32; + out.max_write = 4096; + fuse_reply(fd, hdr->unique, &out, fuse_struct_size); + + return NO_STATUS; +} + +static void fill_attr(struct fuse_attr* attr, struct fuse_data* fd, + uint64_t nodeid, uint64_t size, uint32_t mode) { + memset(attr, 0, sizeof(*attr)); + attr->nlink = 1; + attr->uid = fd->uid; + attr->gid = fd->gid; + attr->blksize = 4096; + + attr->ino = nodeid; + attr->size = size; + attr->blocks = (size == 0) ? 0 : (((size-1) / attr->blksize) + 1); + attr->mode = mode; +} + +static int handle_getattr(void* /* data */, struct fuse_data* fd, const struct fuse_in_header* hdr) { + struct fuse_attr_out out; + memset(&out, 0, sizeof(out)); + out.attr_valid = 10; + + if (hdr->nodeid == FUSE_ROOT_ID) { + fill_attr(&(out.attr), fd, hdr->nodeid, 4096, S_IFDIR | 0555); + } else if (hdr->nodeid == PACKAGE_FILE_ID) { + fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444); + } else if (hdr->nodeid == EXIT_FLAG_ID) { + fill_attr(&(out.attr), fd, EXIT_FLAG_ID, 0, S_IFREG | 0); + } else { + return -ENOENT; + } + + fuse_reply(fd, hdr->unique, &out, sizeof(out)); + return (hdr->nodeid == EXIT_FLAG_ID) ? NO_STATUS_EXIT : NO_STATUS; +} + +static int handle_lookup(void* data, struct fuse_data* fd, + const struct fuse_in_header* hdr) { + struct fuse_entry_out out; + memset(&out, 0, sizeof(out)); + out.entry_valid = 10; + out.attr_valid = 10; + + if (strncmp(FUSE_SIDELOAD_HOST_FILENAME, reinterpret_cast<const char*>(data), + sizeof(FUSE_SIDELOAD_HOST_FILENAME)) == 0) { + out.nodeid = PACKAGE_FILE_ID; + out.generation = PACKAGE_FILE_ID; + fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444); + } else if (strncmp(FUSE_SIDELOAD_HOST_EXIT_FLAG, reinterpret_cast<const char*>(data), + sizeof(FUSE_SIDELOAD_HOST_EXIT_FLAG)) == 0) { + out.nodeid = EXIT_FLAG_ID; + out.generation = EXIT_FLAG_ID; + fill_attr(&(out.attr), fd, EXIT_FLAG_ID, 0, S_IFREG | 0); + } else { + return -ENOENT; + } + + fuse_reply(fd, hdr->unique, &out, sizeof(out)); + return (out.nodeid == EXIT_FLAG_ID) ? NO_STATUS_EXIT : NO_STATUS; +} + +static int handle_open(void* /* data */, struct fuse_data* fd, const struct fuse_in_header* hdr) { + if (hdr->nodeid == EXIT_FLAG_ID) return -EPERM; + if (hdr->nodeid != PACKAGE_FILE_ID) return -ENOENT; + + struct fuse_open_out out; + memset(&out, 0, sizeof(out)); + out.fh = 10; // an arbitrary number; we always use the same handle + fuse_reply(fd, hdr->unique, &out, sizeof(out)); + return NO_STATUS; +} + +static int handle_flush(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { + return 0; +} + +static int handle_release(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { + return 0; +} + +// Fetch a block from the host into fd->curr_block and fd->block_data. +// Returns 0 on successful fetch, negative otherwise. +static int fetch_block(struct fuse_data* fd, uint32_t block) { + if (block == fd->curr_block) { + return 0; + } + + if (block >= fd->file_blocks) { + memset(fd->block_data, 0, fd->block_size); + fd->curr_block = block; + return 0; + } + + size_t fetch_size = fd->block_size; + if (block * fd->block_size + fetch_size > fd->file_size) { + // If we're reading the last (partial) block of the file, + // expect a shorter response from the host, and pad the rest + // of the block with zeroes. + fetch_size = fd->file_size - (block * fd->block_size); + memset(fd->block_data + fetch_size, 0, fd->block_size - fetch_size); + } + + int result = fd->vtab->read_block(fd->cookie, block, fd->block_data, fetch_size); + if (result < 0) return result; + + fd->curr_block = block; + + // Verify the hash of the block we just got from the host. + // + // - If the hash of the just-received data matches the stored hash + // for the block, accept it. + // - If the stored hash is all zeroes, store the new hash and + // accept the block (this is the first time we've read this + // block). + // - Otherwise, return -EINVAL for the read. + + uint8_t hash[SHA256_DIGEST_LENGTH]; + SHA256(fd->block_data, fd->block_size, hash); + uint8_t* blockhash = fd->hashes + block * SHA256_DIGEST_LENGTH; + if (memcmp(hash, blockhash, SHA256_DIGEST_LENGTH) == 0) { + return 0; + } + + int i; + for (i = 0; i < SHA256_DIGEST_LENGTH; ++i) { + if (blockhash[i] != 0) { + fd->curr_block = -1; + return -EIO; + } + } + + memcpy(blockhash, hash, SHA256_DIGEST_LENGTH); + return 0; +} + +static int handle_read(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) { + const struct fuse_read_in* req = reinterpret_cast<const struct fuse_read_in*>(data); + struct fuse_out_header outhdr; + struct iovec vec[3]; + int vec_used; + int result; + + if (hdr->nodeid != PACKAGE_FILE_ID) return -ENOENT; + + uint64_t offset = req->offset; + uint32_t size = req->size; + + // The docs on the fuse kernel interface are vague about what to + // do when a read request extends past the end of the file. We + // can return a short read -- the return structure does include a + // length field -- but in testing that caused the program using + // the file to segfault. (I speculate that this is due to the + // reading program accessing it via mmap; maybe mmap dislikes when + // you return something short of a whole page?) To fix this we + // zero-pad reads that extend past the end of the file so we're + // always returning exactly as many bytes as were requested. + // (Users of the mapped file have to know its real length anyway.) + + outhdr.len = sizeof(outhdr) + size; + outhdr.error = 0; + outhdr.unique = hdr->unique; + vec[0].iov_base = &outhdr; + vec[0].iov_len = sizeof(outhdr); + + uint32_t block = offset / fd->block_size; + result = fetch_block(fd, block); + if (result != 0) return result; + + // Two cases: + // + // - the read request is entirely within this block. In this + // case we can reply immediately. + // + // - the read request goes over into the next block. Note that + // since we mount the filesystem with max_read=block_size, a + // read can never span more than two blocks. In this case we + // copy the block to extra_block and issue a fetch for the + // following block. + + uint32_t block_offset = offset - (block * fd->block_size); + + if (size + block_offset <= fd->block_size) { + // First case: the read fits entirely in the first block. + + vec[1].iov_base = fd->block_data + block_offset; + vec[1].iov_len = size; + vec_used = 2; + } else { + // Second case: the read spills over into the next block. + + memcpy(fd->extra_block, fd->block_data + block_offset, + fd->block_size - block_offset); + vec[1].iov_base = fd->extra_block; + vec[1].iov_len = fd->block_size - block_offset; + + result = fetch_block(fd, block+1); + if (result != 0) return result; + vec[2].iov_base = fd->block_data; + vec[2].iov_len = size - vec[1].iov_len; + vec_used = 3; + } + + if (writev(fd->ffd, vec, vec_used) < 0) { + printf("*** READ REPLY FAILED: %s ***\n", strerror(errno)); + } + return NO_STATUS; +} + +int run_fuse_sideload(struct provider_vtab* vtab, void* cookie, + uint64_t file_size, uint32_t block_size) +{ + int result; + + // If something's already mounted on our mountpoint, try to remove + // it. (Mostly in case of a previous abnormal exit.) + umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_FORCE); + + if (block_size < 1024) { + fprintf(stderr, "block size (%u) is too small\n", block_size); + return -1; + } + if (block_size > (1<<22)) { // 4 MiB + fprintf(stderr, "block size (%u) is too large\n", block_size); + return -1; + } + + struct fuse_data fd; + memset(&fd, 0, sizeof(fd)); + fd.vtab = vtab; + fd.cookie = cookie; + fd.file_size = file_size; + fd.block_size = block_size; + fd.file_blocks = (file_size == 0) ? 0 : (((file_size-1) / block_size) + 1); + + if (fd.file_blocks > (1<<18)) { + fprintf(stderr, "file has too many blocks (%u)\n", fd.file_blocks); + result = -1; + goto done; + } + + fd.hashes = (uint8_t*)calloc(fd.file_blocks, SHA256_DIGEST_LENGTH); + if (fd.hashes == NULL) { + fprintf(stderr, "failed to allocate %d bites for hashes\n", + fd.file_blocks * SHA256_DIGEST_LENGTH); + result = -1; + goto done; + } + + fd.uid = getuid(); + fd.gid = getgid(); + + fd.curr_block = -1; + fd.block_data = (uint8_t*)malloc(block_size); + if (fd.block_data == NULL) { + fprintf(stderr, "failed to allocate %d bites for block_data\n", block_size); + result = -1; + goto done; + } + fd.extra_block = (uint8_t*)malloc(block_size); + if (fd.extra_block == NULL) { + fprintf(stderr, "failed to allocate %d bites for extra_block\n", block_size); + result = -1; + goto done; + } + + fd.ffd = open("/dev/fuse", O_RDWR); + if (fd.ffd < 0) { + perror("open /dev/fuse"); + result = -1; + goto done; + } + + char opts[256]; + snprintf(opts, sizeof(opts), + ("fd=%d,user_id=%d,group_id=%d,max_read=%u," + "allow_other,rootmode=040000"), + fd.ffd, fd.uid, fd.gid, block_size); + + result = mount("/dev/fuse", FUSE_SIDELOAD_HOST_MOUNTPOINT, + "fuse", MS_NOSUID | MS_NODEV | MS_RDONLY | MS_NOEXEC, opts); + if (result < 0) { + perror("mount"); + goto done; + } + uint8_t request_buffer[sizeof(struct fuse_in_header) + PATH_MAX*8]; + for (;;) { + ssize_t len = TEMP_FAILURE_RETRY(read(fd.ffd, request_buffer, sizeof(request_buffer))); + if (len == -1) { + perror("read request"); + if (errno == ENODEV) { + result = -1; + break; + } + continue; + } + + if ((size_t)len < sizeof(struct fuse_in_header)) { + fprintf(stderr, "request too short: len=%zu\n", (size_t)len); + continue; + } + + struct fuse_in_header* hdr = (struct fuse_in_header*) request_buffer; + void* data = request_buffer + sizeof(struct fuse_in_header); + + result = -ENOSYS; + + switch (hdr->opcode) { + case FUSE_INIT: + result = handle_init(data, &fd, hdr); + break; + + case FUSE_LOOKUP: + result = handle_lookup(data, &fd, hdr); + break; + + case FUSE_GETATTR: + result = handle_getattr(data, &fd, hdr); + break; + + case FUSE_OPEN: + result = handle_open(data, &fd, hdr); + break; + + case FUSE_READ: + result = handle_read(data, &fd, hdr); + break; + + case FUSE_FLUSH: + result = handle_flush(data, &fd, hdr); + break; + + case FUSE_RELEASE: + result = handle_release(data, &fd, hdr); + break; + + default: + fprintf(stderr, "unknown fuse request opcode %d\n", hdr->opcode); + break; + } + + if (result == NO_STATUS_EXIT) { + result = 0; + break; + } + + if (result != NO_STATUS) { + struct fuse_out_header outhdr; + outhdr.len = sizeof(outhdr); + outhdr.error = result; + outhdr.unique = hdr->unique; + TEMP_FAILURE_RETRY(write(fd.ffd, &outhdr, sizeof(outhdr))); + } + } + + done: + fd.vtab->close(fd.cookie); + + result = umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_DETACH); + if (result < 0) { + printf("fuse_sideload umount failed: %s\n", strerror(errno)); + } + + if (fd.ffd) close(fd.ffd); + free(fd.hashes); + free(fd.block_data); + free(fd.extra_block); + + return result; +} diff --git a/fuse_sideload.h b/fuse_sideload.h index f9e3bf0d3..c0b16efbe 100644 --- a/fuse_sideload.h +++ b/fuse_sideload.h @@ -17,10 +17,6 @@ #ifndef __FUSE_SIDELOAD_H #define __FUSE_SIDELOAD_H -#include <sys/cdefs.h> - -__BEGIN_DECLS - // define the filenames created by the sideload FUSE filesystem #define FUSE_SIDELOAD_HOST_MOUNTPOINT "/sideload" #define FUSE_SIDELOAD_HOST_FILENAME "package.zip" @@ -39,6 +35,4 @@ struct provider_vtab { int run_fuse_sideload(struct provider_vtab* vtab, void* cookie, uint64_t file_size, uint32_t block_size); -__END_DECLS - #endif diff --git a/install.cpp b/install.cpp index c7d382f3e..d5c558306 100644 --- a/install.cpp +++ b/install.cpp @@ -23,17 +23,24 @@ #include <sys/wait.h> #include <unistd.h> +#include <chrono> +#include <string> +#include <vector> + +#include <android-base/stringprintf.h> +#include <android-base/strings.h> + #include "common.h" +#include "error_code.h" #include "install.h" -#include "mincrypt/rsa.h" #include "minui/minui.h" #include "minzip/SysUtil.h" #include "minzip/Zip.h" #include "mtdutils/mounts.h" #include "mtdutils/mtdutils.h" #include "roots.h" -#include "verifier.h" #include "ui.h" +#include "verifier.h" extern RecoveryUI* ui; @@ -48,7 +55,9 @@ static const float DEFAULT_IMAGE_PROGRESS_FRACTION = 0.1; // If the package contains an update binary, extract it and run it. static int -try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { +try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache, + std::vector<std::string>& log_buffer, int retry_count) +{ const ZipEntry* binary_entry = mzFindZipEntry(zip, ASSUMED_UPDATE_BINARY_NAME); if (binary_entry == NULL) { @@ -121,15 +130,19 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { // // - the name of the package zip file. // + // - an optional argument "retry" if this update is a retry of a failed + // update attempt. + // - const char** args = (const char**)malloc(sizeof(char*) * 5); + const char** args = (const char**)malloc(sizeof(char*) * 6); args[0] = binary; args[1] = EXPAND(RECOVERY_API_VERSION); // defined in Android.mk char* temp = (char*)malloc(10); sprintf(temp, "%d", pipefd[1]); args[2] = temp; args[3] = (char*)path; - args[4] = NULL; + args[4] = retry_count > 0 ? "retry" : NULL; + args[5] = NULL; pid_t pid = fork(); if (pid == 0) { @@ -142,6 +155,7 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { close(pipefd[1]); *wipe_cache = false; + bool retry_update = false; char buffer[1024]; FILE* from_child = fdopen(pipefd[0], "r"); @@ -164,9 +178,9 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { } else if (strcmp(command, "ui_print") == 0) { char* str = strtok(NULL, "\n"); if (str) { - ui->Print("%s", str); + ui->PrintOnScreenOnly("%s", str); } else { - ui->Print("\n"); + ui->PrintOnScreenOnly("\n"); } fflush(stdout); } else if (strcmp(command, "wipe_cache") == 0) { @@ -178,6 +192,12 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { // to be able to reboot during installation (useful for // debugging packages that don't exit). ui->SetEnableReboot(true); + } else if (strcmp(command, "retry_update") == 0) { + retry_update = true; + } else if (strcmp(command, "log") == 0) { + // Save the logging request from updater and write to + // last_install later. + log_buffer.push_back(std::string(strtok(NULL, "\n"))); } else { LOGE("unknown command [%s]\n", command); } @@ -186,6 +206,9 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { int status; waitpid(pid, &status, 0); + if (retry_update) { + return INSTALL_RETRY; + } if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { LOGE("Error in %s\n(Status %d)\n", path, WEXITSTATUS(status)); return INSTALL_ERROR; @@ -195,7 +218,8 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) { } static int -really_install_package(const char *path, bool* wipe_cache, bool needs_mount) +really_install_package(const char *path, bool* wipe_cache, bool needs_mount, + std::vector<std::string>& log_buffer, int retry_count) { ui->SetBackground(RecoveryUI::INSTALLING_UPDATE); ui->Print("Finding update package...\n"); @@ -221,41 +245,46 @@ really_install_package(const char *path, bool* wipe_cache, bool needs_mount) return INSTALL_CORRUPT; } - int numKeys; - Certificate* loadedKeys = load_keys(PUBLIC_KEYS_FILE, &numKeys); - if (loadedKeys == NULL) { + // Load keys. + std::vector<Certificate> loadedKeys; + if (!load_keys(PUBLIC_KEYS_FILE, loadedKeys)) { LOGE("Failed to load keys\n"); return INSTALL_CORRUPT; } - LOGI("%d key(s) loaded from %s\n", numKeys, PUBLIC_KEYS_FILE); + LOGI("%zu key(s) loaded from %s\n", loadedKeys.size(), PUBLIC_KEYS_FILE); + // Verify package. ui->Print("Verifying update package...\n"); - - int err; - err = verify_file(map.addr, map.length, loadedKeys, numKeys); - free(loadedKeys); - LOGI("verify_file returned %d\n", err); + auto t0 = std::chrono::system_clock::now(); + int err = verify_file(map.addr, map.length, loadedKeys); + std::chrono::duration<double> duration = std::chrono::system_clock::now() - t0; + ui->Print("Update package verification took %.1f s (result %d).\n", duration.count(), err); if (err != VERIFY_SUCCESS) { LOGE("signature verification failed\n"); + log_buffer.push_back(android::base::StringPrintf("error: %d", kZipVerificationFailure)); + sysReleaseMap(&map); return INSTALL_CORRUPT; } - /* Try to open the package. - */ + // Try to open the package. ZipArchive zip; err = mzOpenZipArchive(map.addr, map.length, &zip); if (err != 0) { LOGE("Can't open %s\n(%s)\n", path, err != -1 ? strerror(err) : "bad"); + log_buffer.push_back(android::base::StringPrintf("error: %d", kZipOpenFailure)); + sysReleaseMap(&map); return INSTALL_CORRUPT; } - /* Verify and install the contents of the package. - */ + // Verify and install the contents of the package. ui->Print("Installing update...\n"); + if (retry_count > 0) { + ui->Print("Retry attempt: %d\n", retry_count); + } ui->SetEnableReboot(false); - int result = try_update_binary(path, &zip, wipe_cache); + int result = try_update_binary(path, &zip, wipe_cache, log_buffer, retry_count); ui->SetEnableReboot(true); ui->Print("\n"); @@ -266,9 +295,10 @@ really_install_package(const char *path, bool* wipe_cache, bool needs_mount) int install_package(const char* path, bool* wipe_cache, const char* install_file, - bool needs_mount) + bool needs_mount, int retry_count) { modified_flash = true; + auto start = std::chrono::system_clock::now(); FILE* install_log = fopen_path(install_file, "w"); if (install_log) { @@ -278,15 +308,26 @@ install_package(const char* path, bool* wipe_cache, const char* install_file, LOGE("failed to open last_install: %s\n", strerror(errno)); } int result; + std::vector<std::string> log_buffer; if (setup_install_mounts() != 0) { LOGE("failed to set up expected mounts for install; aborting\n"); result = INSTALL_ERROR; } else { - result = really_install_package(path, wipe_cache, needs_mount); + result = really_install_package(path, wipe_cache, needs_mount, log_buffer, retry_count); } - if (install_log) { + if (install_log != nullptr) { fputc(result == INSTALL_SUCCESS ? '1' : '0', install_log); fputc('\n', install_log); + std::chrono::duration<double> duration = std::chrono::system_clock::now() - start; + int count = static_cast<int>(duration.count()); + // Report the time spent to apply OTA update in seconds. + fprintf(install_log, "time_total: %d\n", count); + fprintf(install_log, "retry: %d\n", retry_count); + + for (const auto& s : log_buffer) { + fprintf(install_log, "%s\n", s.c_str()); + } + fclose(install_log); } return result; @@ -23,12 +23,13 @@ extern "C" { #endif -enum { INSTALL_SUCCESS, INSTALL_ERROR, INSTALL_CORRUPT, INSTALL_NONE }; +enum { INSTALL_SUCCESS, INSTALL_ERROR, INSTALL_CORRUPT, INSTALL_NONE, INSTALL_SKIPPED, + INSTALL_RETRY }; // Install the package specified by root_path. If INSTALL_SUCCESS is // returned and *wipe_cache is true on exit, caller should wipe the // cache partition. -int install_package(const char* root_path, bool* wipe_cache, - const char* install_file, bool needs_mount); +int install_package(const char* root_path, bool* wipe_cache, const char* install_file, + bool needs_mount, int retry_count); #ifdef __cplusplus } diff --git a/interlace-frames.py b/interlace-frames.py index 243e565e7..6b435aa90 100644..100755 --- a/interlace-frames.py +++ b/interlace-frames.py @@ -1,3 +1,4 @@ +#!/usr/bin/env python # Copyright (C) 2014 The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); @@ -12,42 +13,102 @@ # See the License for the specific language governing permissions and # limitations under the License. -"""Script to take a set of frames (PNG files) for a recovery animation +""" +Script to take a set of frames (PNG files) for a recovery animation and turn it into a single output image which contains the input frames interlaced by row. Run with the names of all the input frames on the -command line, in order, followed by the name of the output file.""" +command line, in order, followed by the name of the output file. +""" +from __future__ import print_function + +import argparse +import os.path import sys try: import Image import PngImagePlugin except ImportError: - print "This script requires the Python Imaging Library to be installed." + print("This script requires the Python Imaging Library to be installed.") sys.exit(1) -frames = [Image.open(fn).convert("RGB") for fn in sys.argv[1:-1]] -assert len(frames) > 0, "Must have at least one input frame." -sizes = set() -for fr in frames: - sizes.add(fr.size) -assert len(sizes) == 1, "All input images must have the same size." -w, h = sizes.pop() -N = len(frames) +def interlace(output, inputs): + frames = [Image.open(fn).convert("RGB") for fn in inputs] + assert len(frames) > 0, "Must have at least one input frame." + sizes = set() + for fr in frames: + sizes.add(fr.size) + + assert len(sizes) == 1, "All input images must have the same size." + w, h = sizes.pop() + N = len(frames) + + out = Image.new("RGB", (w, h*N)) + for j in range(h): + for i in range(w): + for fn, f in enumerate(frames): + out.putpixel((i, j*N+fn), f.getpixel((i, j))) + + # When loading this image, the graphics library expects to find a text + # chunk that specifies how many frames this animation represents. If + # you post-process the output of this script with some kind of + # optimizer tool (eg pngcrush or zopflipng) make sure that your + # optimizer preserves this text chunk. + + meta = PngImagePlugin.PngInfo() + meta.add_text("Frames", str(N)) + + out.save(output, pnginfo=meta) + + +def deinterlace(output, input): + # Truncate the output filename extension if it's '.png'. + if os.path.splitext(output)[1].lower() == '.png': + output = output[:-4] + + img2 = Image.open(input) + print(img2.mode) + palette = img2.getpalette() + img = img2.convert("RGB") + num_frames = int(img.info.get('Frames', 1)) + print('Found %d frames in %s.' % (num_frames, input)) + assert num_frames > 0, 'Invalid Frames meta.' + + # palette = img.getpalette() + print(palette) + + width, height = img.size + height /= num_frames + for k in range(num_frames): + out = Image.new('RGB', (width, height)) + out.info = img.info + for i in range(width): + for j in range(height): + out.putpixel((i, j), img.getpixel((i, j * num_frames + k))) + # out.putpalette(img.getpalette(), rawmode='RGB') + out2 = out.convert(mode='P', palette=palette) + #out2 = out + print(out2.mode) + # out2.putpalette(palette) + filename = '%s%02d.png' % (output, k) + out2.save(filename) + print('Frame %d written to %s.' % (k, filename)) + -out = Image.new("RGB", (w, h*N)) -for j in range(h): - for i in range(w): - for fn, f in enumerate(frames): - out.putpixel((i, j*N+fn), f.getpixel((i, j))) +def main(argv): + parser = argparse.ArgumentParser(description='Parse') + parser.add_argument('--deinterlace', '-d', action='store_true') + parser.add_argument('--output', '-o', required=True) + parser.add_argument('input', nargs='+') + args = parser.parse_args(argv) -# When loading this image, the graphics library expects to find a text -# chunk that specifies how many frames this animation represents. If -# you post-process the output of this script with some kind of -# optimizer tool (eg pngcrush or zopflipng) make sure that your -# optimizer preserves this text chunk. + if args.deinterlace: + # args.input is a list, and we only process the first when deinterlacing. + deinterlace(args.output, args.input[0]) + else: + interlace(args.output, args.input) -meta = PngImagePlugin.PngInfo() -meta.add_text("Frames", str(N)) -out.save(sys.argv[-1], pnginfo=meta) +if __name__ == '__main__': + main(sys.argv[1:]) diff --git a/minadbd/Android.mk b/minadbd/Android.mk index a7a3e087d..3db3b4114 100644 --- a/minadbd/Android.mk +++ b/minadbd/Android.mk @@ -15,6 +15,7 @@ LOCAL_SRC_FILES := \ fuse_adb_provider.cpp \ services.cpp \ +LOCAL_CLANG := true LOCAL_MODULE := libminadbd LOCAL_CFLAGS := $(minadbd_cflags) LOCAL_CONLY_FLAGS := -Wimplicit-function-declaration diff --git a/minadbd/adb_main.cpp b/minadbd/adb_main.cpp index 7fae99a9a..0694280cb 100644 --- a/minadbd/adb_main.cpp +++ b/minadbd/adb_main.cpp @@ -19,21 +19,15 @@ #include <stdio.h> #include <stdlib.h> -#define TRACE_TAG TRACE_ADB - #include "sysdeps.h" #include "adb.h" #include "adb_auth.h" #include "transport.h" -int adb_main(int is_daemon, int server_port) -{ - atexit(usb_cleanup); - +int adb_server_main(int is_daemon, int server_port, int /* reply_fd */) { adb_device_banner = "sideload"; - // No SIGCHLD. Let the service subproc handle its children. signal(SIGPIPE, SIG_IGN); // We can't require authentication for sideloading. http://b/22025550. @@ -42,7 +36,7 @@ int adb_main(int is_daemon, int server_port) init_transport_registration(); usb_init(); - D("Event loop starting\n"); + VLOG(ADB) << "Event loop starting"; fdevent_loop(); return 0; diff --git a/minadbd/services.cpp b/minadbd/services.cpp index dd1fd7c4b..658a43f36 100644 --- a/minadbd/services.cpp +++ b/minadbd/services.cpp @@ -23,7 +23,6 @@ #include "sysdeps.h" -#define TRACE_TAG TRACE_SERVICES #include "adb.h" #include "fdevent.h" #include "fuse_adb_provider.h" @@ -36,21 +35,21 @@ struct stinfo { void *cookie; }; -void* service_bootstrap_func(void* x) { +void service_bootstrap_func(void* x) { stinfo* sti = reinterpret_cast<stinfo*>(x); sti->func(sti->fd, sti->cookie); free(sti); - return 0; } static void sideload_host_service(int sfd, void* data) { - const char* args = reinterpret_cast<const char*>(data); + char* args = reinterpret_cast<char*>(data); int file_size; int block_size; if (sscanf(args, "%d:%d", &file_size, &block_size) != 2) { printf("bad sideload-host arguments: %s\n", args); exit(1); } + free(args); printf("sideload-host file size %d block size %d\n", file_size, block_size); @@ -61,8 +60,7 @@ static void sideload_host_service(int sfd, void* data) { exit(result == 0 ? 0 : 1); } -static int create_service_thread(void (*func)(int, void *), void *cookie) -{ +static int create_service_thread(void (*func)(int, void *), void *cookie) { int s[2]; if(adb_socketpair(s)) { printf("cannot create service socket pair\n"); @@ -75,8 +73,7 @@ static int create_service_thread(void (*func)(int, void *), void *cookie) sti->cookie = cookie; sti->fd = s[1]; - adb_thread_t t; - if (adb_thread_create( &t, service_bootstrap_func, sti)){ + if (!adb_thread_create(service_bootstrap_func, sti)) { free(sti); adb_close(s[0]); adb_close(s[1]); @@ -84,11 +81,11 @@ static int create_service_thread(void (*func)(int, void *), void *cookie) return -1; } - D("service thread started, %d:%d\n",s[0], s[1]); + VLOG(SERVICES) << "service thread started, " << s[0] << ":" << s[1]; return s[0]; } -int service_to_fd(const char* name) { +int service_to_fd(const char* name, const atransport* transport) { int ret = -1; if (!strncmp(name, "sideload:", 9)) { @@ -97,7 +94,8 @@ int service_to_fd(const char* name) { // sideload-host). exit(3); } else if (!strncmp(name, "sideload-host:", 14)) { - ret = create_service_thread(sideload_host_service, (void*)(name + 14)); + char* arg = strdup(name + 14); + ret = create_service_thread(sideload_host_service, arg); } if (ret >= 0) { close_on_exec(ret); diff --git a/minui/Android.mk b/minui/Android.mk index 97724fbf0..3057f452c 100644 --- a/minui/Android.mk +++ b/minui/Android.mk @@ -41,6 +41,7 @@ include $(BUILD_STATIC_LIBRARY) # Used by OEMs for factory test images. include $(CLEAR_VARS) +LOCAL_CLANG := true LOCAL_MODULE := libminui LOCAL_WHOLE_STATIC_LIBRARIES += libminui LOCAL_SHARED_LIBRARIES := libpng diff --git a/minui/minui.h b/minui/minui.h index bdde083f3..fb0bbe10c 100644 --- a/minui/minui.h +++ b/minui/minui.h @@ -84,6 +84,8 @@ int ev_get_epollfd(); // Resources // +bool matches_locale(const char* prefix, const char* locale); + // res_create_*_surface() functions return 0 if no error, else // negative. // @@ -101,8 +103,8 @@ int res_create_display_surface(const char* name, GRSurface** pSurface); // should have a 'Frames' text chunk whose value is the number of // frames this image represents. The pixel data itself is interlaced // by row. -int res_create_multi_display_surface(const char* name, - int* frames, GRSurface*** pSurface); +int res_create_multi_display_surface(const char* name, int* frames, + int* fps, GRSurface*** pSurface); // Load a single alpha surface from a grayscale PNG image. int res_create_alpha_surface(const char* name, GRSurface** pSurface); diff --git a/minui/resources.cpp b/minui/resources.cpp index 5e4789277..40d3c2c88 100644 --- a/minui/resources.cpp +++ b/minui/resources.cpp @@ -32,8 +32,6 @@ #include "minui.h" -extern char* locale; - #define SURFACE_DATA_ALIGNMENT 8 static GRSurface* malloc_surface(size_t data_size) { @@ -237,14 +235,14 @@ int res_create_display_surface(const char* name, GRSurface** pSurface) { return result; } -int res_create_multi_display_surface(const char* name, int* frames, GRSurface*** pSurface) { +int res_create_multi_display_surface(const char* name, int* frames, int* fps, + GRSurface*** pSurface) { GRSurface** surface = NULL; int result = 0; png_structp png_ptr = NULL; png_infop info_ptr = NULL; png_uint_32 width, height; png_byte channels; - int i; png_textp text; int num_text; unsigned char* p_row; @@ -257,14 +255,23 @@ int res_create_multi_display_surface(const char* name, int* frames, GRSurface*** if (result < 0) return result; *frames = 1; + *fps = 20; if (png_get_text(png_ptr, info_ptr, &text, &num_text)) { - for (i = 0; i < num_text; ++i) { + for (int i = 0; i < num_text; ++i) { if (text[i].key && strcmp(text[i].key, "Frames") == 0 && text[i].text) { *frames = atoi(text[i].text); - break; + } else if (text[i].key && strcmp(text[i].key, "FPS") == 0 && text[i].text) { + *fps = atoi(text[i].text); } } printf(" found frames = %d\n", *frames); + printf(" found fps = %d\n", *fps); + } + + if (frames <= 0 || fps <= 0) { + printf("bad number of frames (%d) and/or FPS (%d)\n", *frames, *fps); + result = -10; + goto exit; } if (height % *frames != 0) { @@ -278,7 +285,7 @@ int res_create_multi_display_surface(const char* name, int* frames, GRSurface*** result = -8; goto exit; } - for (i = 0; i < *frames; ++i) { + for (int i = 0; i < *frames; ++i) { surface[i] = init_display_surface(width, height / *frames); if (surface[i] == NULL) { result = -8; @@ -307,7 +314,7 @@ exit: if (result < 0) { if (surface) { - for (i = 0; i < *frames; ++i) { + for (int i = 0; i < *frames; ++i) { if (surface[i]) free(surface[i]); } free(surface); @@ -363,21 +370,16 @@ int res_create_alpha_surface(const char* name, GRSurface** pSurface) { return result; } -static int matches_locale(const char* loc, const char* locale) { - if (locale == NULL) return 0; - - if (strcmp(loc, locale) == 0) return 1; - - // if loc does *not* have an underscore, and it matches the start - // of locale, and the next character in locale *is* an underscore, - // that's a match. For instance, loc == "en" matches locale == - // "en_US". +// This function tests if a locale string stored in PNG (prefix) matches +// the locale string provided by the system (locale). +bool matches_locale(const char* prefix, const char* locale) { + if (locale == NULL) return false; - int i; - for (i = 0; loc[i] != 0 && loc[i] != '_'; ++i); - if (loc[i] == '_') return 0; + // Return true if the whole string of prefix matches the top part of + // locale. For instance, prefix == "en" matches locale == "en_US"; + // and prefix == "zh_CN" matches locale == "zh_CN_#Hans". - return (strncmp(locale, loc, i) == 0 && locale[i] == '_'); + return (strncmp(prefix, locale, strlen(prefix)) == 0); } int res_create_localized_alpha_surface(const char* name, diff --git a/minzip/Android.mk b/minzip/Android.mk index 045f35570..22eabfbb1 100644 --- a/minzip/Android.mk +++ b/minzip/Android.mk @@ -16,6 +16,8 @@ LOCAL_STATIC_LIBRARIES := libselinux LOCAL_MODULE := libminzip -LOCAL_CFLAGS += -Wall +LOCAL_CLANG := true + +LOCAL_CFLAGS += -Werror -Wall include $(BUILD_STATIC_LIBRARY) diff --git a/minzip/Hash.c b/minzip/Hash.c index 8f8ed68e5..49bcb3161 100644 --- a/minzip/Hash.c +++ b/minzip/Hash.c @@ -361,7 +361,7 @@ void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc, { const void* data = (const void*)mzHashIterData(&iter); int count; - + count = countProbes(pHashTable, (*calcFunc)(data), data, cmpFunc); numEntries++; @@ -373,7 +373,7 @@ void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc, totalProbe += count; } - LOGI("Probe: min=%d max=%d, total=%d in %d (%d), avg=%.3f\n", + LOGV("Probe: min=%d max=%d, total=%d in %d (%d), avg=%.3f\n", minProbe, maxProbe, totalProbe, numEntries, pHashTable->tableSize, (float) totalProbe / (float) numEntries); } diff --git a/minzip/Hash.h b/minzip/Hash.h index 8194537f3..e83eac414 100644 --- a/minzip/Hash.h +++ b/minzip/Hash.h @@ -15,6 +15,10 @@ #include <stdbool.h> #include <assert.h> +#ifdef __cplusplus +extern "C" { +#endif + /* compute the hash of an item with a specific type */ typedef unsigned int (*HashCompute)(const void* item); @@ -183,4 +187,8 @@ typedef unsigned int (*HashCalcFunc)(const void* item); void mzHashTableProbeCount(HashTable* pHashTable, HashCalcFunc calcFunc, HashCompareFunc cmpFunc); +#ifdef __cplusplus +} +#endif + #endif /*_MINZIP_HASH*/ diff --git a/minzip/SysUtil.c b/minzip/SysUtil.c index b1fb4556d..e7dd17b51 100644 --- a/minzip/SysUtil.c +++ b/minzip/SysUtil.c @@ -3,93 +3,51 @@ * * System utilities. */ +#include <assert.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> #include <stdbool.h> -#include <stdint.h> -#include <stdlib.h> #include <stdio.h> -#include <unistd.h> +#include <stdlib.h> #include <string.h> #include <sys/mman.h> -#include <sys/types.h> #include <sys/stat.h> -#include <fcntl.h> -#include <limits.h> -#include <errno.h> -#include <assert.h> +#include <sys/types.h> +#include <unistd.h> #define LOG_TAG "sysutil" #include "Log.h" #include "SysUtil.h" -static int getFileStartAndLength(int fd, off_t *start_, size_t *length_) -{ - off_t start, end; - size_t length; - - assert(start_ != NULL); - assert(length_ != NULL); - - // TODO: isn't start always 0 for the single call site? just use fstat instead? - - start = TEMP_FAILURE_RETRY(lseek(fd, 0L, SEEK_CUR)); - end = TEMP_FAILURE_RETRY(lseek(fd, 0L, SEEK_END)); - - if (TEMP_FAILURE_RETRY(lseek(fd, start, SEEK_SET)) == -1 || - start == (off_t) -1 || end == (off_t) -1) { - LOGE("could not determine length of file\n"); - return -1; - } - - length = end - start; - if (length == 0) { - LOGE("file is empty\n"); - return -1; - } - - *start_ = start; - *length_ = length; - - return 0; -} - -/* - * Map a file (from fd's current offset) into a private, read-only memory - * segment. The file offset must be a multiple of the page size. - * - * On success, returns 0 and fills out "pMap". On failure, returns a nonzero - * value and does not disturb "pMap". - */ -static int sysMapFD(int fd, MemMapping* pMap) -{ - off_t start; - size_t length; - void* memPtr; - +static bool sysMapFD(int fd, MemMapping* pMap) { assert(pMap != NULL); - if (getFileStartAndLength(fd, &start, &length) < 0) - return -1; + struct stat sb; + if (fstat(fd, &sb) == -1) { + LOGE("fstat(%d) failed: %s\n", fd, strerror(errno)); + return false; + } - memPtr = mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, start); + void* memPtr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0); if (memPtr == MAP_FAILED) { - LOGW("mmap(%d, R, PRIVATE, %d, %d) failed: %s\n", (int) length, - fd, (int) start, strerror(errno)); - return -1; + LOGE("mmap(%d, R, PRIVATE, %d, 0) failed: %s\n", (int) sb.st_size, fd, strerror(errno)); + return false; } pMap->addr = memPtr; - pMap->length = length; + pMap->length = sb.st_size; pMap->range_count = 1; pMap->ranges = malloc(sizeof(MappedRange)); if (pMap->ranges == NULL) { LOGE("malloc failed: %s\n", strerror(errno)); - munmap(memPtr, length); - return -1; + munmap(memPtr, sb.st_size); + return false; } pMap->ranges[0].addr = memPtr; - pMap->ranges[0].length = length; + pMap->ranges[0].length = sb.st_size; - return 0; + return true; } static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) @@ -102,7 +60,7 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) unsigned int i; if (fgets(block_dev, sizeof(block_dev), mapf) == NULL) { - LOGW("failed to read block device from header\n"); + LOGE("failed to read block device from header\n"); return -1; } for (i = 0; i < sizeof(block_dev); ++i) { @@ -113,7 +71,7 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) } if (fscanf(mapf, "%zu %u\n%u\n", &size, &blksize, &range_count) != 3) { - LOGW("failed to parse block map header\n"); + LOGE("failed to parse block map header\n"); return -1; } if (blksize != 0) { @@ -136,14 +94,14 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) unsigned char* reserve; reserve = mmap64(NULL, blocks * blksize, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0); if (reserve == MAP_FAILED) { - LOGW("failed to reserve address space: %s\n", strerror(errno)); + LOGE("failed to reserve address space: %s\n", strerror(errno)); free(pMap->ranges); return -1; } int fd = open(block_dev, O_RDONLY); if (fd < 0) { - LOGW("failed to open block device %s: %s\n", block_dev, strerror(errno)); + LOGE("failed to open block device %s: %s\n", block_dev, strerror(errno)); munmap(reserve, blocks * blksize); free(pMap->ranges); return -1; @@ -155,7 +113,7 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) for (i = 0; i < range_count; ++i) { size_t start, end; if (fscanf(mapf, "%zu %zu\n", &start, &end) != 2) { - LOGW("failed to parse range %d in block map\n", i); + LOGE("failed to parse range %d in block map\n", i); success = false; break; } @@ -168,7 +126,7 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) void* addr = mmap64(next, length, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize); if (addr == MAP_FAILED) { - LOGW("failed to map block %d: %s\n", i, strerror(errno)); + LOGE("failed to map block %d: %s\n", i, strerror(errno)); success = false; break; } @@ -206,12 +164,12 @@ int sysMapFile(const char* fn, MemMapping* pMap) // A map of blocks FILE* mapf = fopen(fn+1, "r"); if (mapf == NULL) { - LOGV("Unable to open '%s': %s\n", fn+1, strerror(errno)); + LOGE("Unable to open '%s': %s\n", fn+1, strerror(errno)); return -1; } if (sysMapBlockFile(mapf, pMap) != 0) { - LOGW("Map of '%s' failed\n", fn); + LOGE("Map of '%s' failed\n", fn); fclose(mapf); return -1; } @@ -219,13 +177,13 @@ int sysMapFile(const char* fn, MemMapping* pMap) fclose(mapf); } else { // This is a regular file. - int fd = open(fn, O_RDONLY, 0); - if (fd < 0) { + int fd = open(fn, O_RDONLY); + if (fd == -1) { LOGE("Unable to open '%s': %s\n", fn, strerror(errno)); return -1; } - if (sysMapFD(fd, pMap) != 0) { + if (!sysMapFD(fd, pMap)) { LOGE("Map of '%s' failed\n", fn); close(fd); return -1; @@ -244,7 +202,7 @@ void sysReleaseMap(MemMapping* pMap) int i; for (i = 0; i < pMap->range_count; ++i) { if (munmap(pMap->ranges[i].addr, pMap->ranges[i].length) < 0) { - LOGW("munmap(%p, %d) failed: %s\n", + LOGE("munmap(%p, %d) failed: %s\n", pMap->ranges[i].addr, (int)pMap->ranges[i].length, strerror(errno)); } } diff --git a/minzip/Zip.c b/minzip/Zip.c index 40712e03a..bdb565c64 100644 --- a/minzip/Zip.c +++ b/minzip/Zip.c @@ -198,10 +198,10 @@ static bool parseZipArchive(ZipArchive* pArchive) */ val = get4LE(pArchive->addr); if (val == ENDSIG) { - LOGI("Found Zip archive, but it looks empty\n"); + LOGW("Found Zip archive, but it looks empty\n"); goto bail; } else if (val != LOCSIG) { - LOGV("Not a Zip archive (found 0x%08x)\n", val); + LOGW("Not a Zip archive (found 0x%08x)\n", val); goto bail; } @@ -217,7 +217,7 @@ static bool parseZipArchive(ZipArchive* pArchive) ptr--; } if (ptr < (const unsigned char*) pArchive->addr) { - LOGI("Could not find end-of-central-directory in Zip\n"); + LOGW("Could not find end-of-central-directory in Zip\n"); goto bail; } @@ -429,7 +429,7 @@ int mzOpenZipArchive(unsigned char* addr, size_t length, ZipArchive* pArchive) if (length < ENDHDR) { err = -1; - LOGV("File '%s' too small to be zip (%zd)\n", fileName, map.length); + LOGW("Archive %p is too small to be zip (%zd)\n", pArchive, length); goto bail; } @@ -438,7 +438,7 @@ int mzOpenZipArchive(unsigned char* addr, size_t length, ZipArchive* pArchive) if (!parseZipArchive(pArchive)) { err = -1; - LOGV("Parsing '%s' failed\n", fileName); + LOGW("Parsing archive %p failed\n", pArchive); goto bail; } @@ -506,7 +506,6 @@ static bool processDeflatedEntry(const ZipArchive *pArchive, void *cookie) { long result = -1; - unsigned char readBuf[32 * 1024]; unsigned char procBuf[32 * 1024]; z_stream zstream; int zerr; @@ -549,7 +548,7 @@ static bool processDeflatedEntry(const ZipArchive *pArchive, /* uncompress the data */ zerr = inflate(&zstream, Z_NO_FLUSH); if (zerr != Z_OK && zerr != Z_STREAM_END) { - LOGD("zlib inflate call failed (zerr=%d)\n", zerr); + LOGW("zlib inflate call failed (zerr=%d)\n", zerr); goto z_bail; } @@ -603,7 +602,6 @@ bool mzProcessZipEntryContents(const ZipArchive *pArchive, void *cookie) { bool ret = false; - off_t oldOff; switch (pEntry->compression) { case STORED: @@ -621,13 +619,6 @@ bool mzProcessZipEntryContents(const ZipArchive *pArchive, return ret; } -static bool crcProcessFunction(const unsigned char *data, int dataLen, - void *crc) -{ - *(unsigned long *)crc = crc32(*(unsigned long *)crc, data, dataLen); - return true; -} - typedef struct { char *buf; int bufLen; @@ -1016,7 +1007,7 @@ bool mzExtractRecursive(const ZipArchive *pArchive, if (callback != NULL) callback(targetFile, cookie); } - LOGD("Extracted %d file(s)\n", extractCount); + LOGV("Extracted %d file(s)\n", extractCount); free(helper.buf); free(zpath); diff --git a/mtdutils/Android.mk b/mtdutils/Android.mk index f04355b5e..b7d35c27a 100644 --- a/mtdutils/Android.mk +++ b/mtdutils/Android.mk @@ -6,10 +6,12 @@ LOCAL_SRC_FILES := \ mounts.c LOCAL_MODULE := libmtdutils +LOCAL_CLANG := true include $(BUILD_STATIC_LIBRARY) include $(CLEAR_VARS) +LOCAL_CLANG := true LOCAL_SRC_FILES := flash_image.c LOCAL_MODULE := flash_image LOCAL_MODULE_TAGS := eng diff --git a/mtdutils/mtdutils.c b/mtdutils/mtdutils.c index cc3033444..cd4f52cd5 100644 --- a/mtdutils/mtdutils.c +++ b/mtdutils/mtdutils.c @@ -300,20 +300,20 @@ static int read_block(const MtdPartition *partition, int fd, char *data) if (TEMP_FAILURE_RETRY(lseek64(fd, pos, SEEK_SET)) != pos || TEMP_FAILURE_RETRY(read(fd, data, size)) != size) { printf("mtd: read error at 0x%08llx (%s)\n", - pos, strerror(errno)); + (long long)pos, strerror(errno)); } else if (ioctl(fd, ECCGETSTATS, &after)) { printf("mtd: ECCGETSTATS error (%s)\n", strerror(errno)); return -1; } else if (after.failed != before.failed) { printf("mtd: ECC errors (%d soft, %d hard) at 0x%08llx\n", - after.corrected - before.corrected, - after.failed - before.failed, pos); + after.corrected - before.corrected, + after.failed - before.failed, (long long)pos); // copy the comparison baseline for the next read. memcpy(&before, &after, sizeof(struct mtd_ecc_stats)); } else if ((mgbb = ioctl(fd, MEMGETBADBLOCK, &pos))) { fprintf(stderr, "mtd: MEMGETBADBLOCK returned %d at 0x%08llx: %s\n", - mgbb, pos, strerror(errno)); + mgbb, (long long)pos, strerror(errno)); } else { return 0; // Success! } diff --git a/otafault/Android.mk b/otafault/Android.mk new file mode 100644 index 000000000..ba7add855 --- /dev/null +++ b/otafault/Android.mk @@ -0,0 +1,44 @@ +# Copyright 2015 The Android Open Source Project +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific languae governing permissions and +# limitations under the License. + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +otafault_static_libs := \ + libbase \ + libminzip \ + libz \ + libselinux + +LOCAL_SRC_FILES := config.cpp ota_io.cpp +LOCAL_MODULE_TAGS := eng +LOCAL_MODULE := libotafault +LOCAL_CLANG := true +LOCAL_C_INCLUDES := bootable/recovery +LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH) +LOCAL_WHOLE_STATIC_LIBRARIES := $(otafault_static_libs) + +include $(BUILD_STATIC_LIBRARY) + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := config.cpp ota_io.cpp test.cpp +LOCAL_MODULE_TAGS := tests +LOCAL_MODULE := otafault_test +LOCAL_STATIC_LIBRARIES := $(otafault_static_libs) +LOCAL_C_INCLUDES := bootable/recovery +LOCAL_FORCE_STATIC_EXECUTABLE := true + +include $(BUILD_EXECUTABLE) diff --git a/otafault/config.cpp b/otafault/config.cpp new file mode 100644 index 000000000..b4567392d --- /dev/null +++ b/otafault/config.cpp @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <map> +#include <string> + +#include <stdio.h> +#include <unistd.h> + +#include <android-base/stringprintf.h> + +#include "minzip/Zip.h" +#include "config.h" +#include "ota_io.h" + +#define OTAIO_MAX_FNAME_SIZE 128 + +static ZipArchive* archive; +static std::map<std::string, bool> should_inject_cache; + +static std::string get_type_path(const char* io_type) { + return android::base::StringPrintf("%s/%s", OTAIO_BASE_DIR, io_type); +} + +void ota_io_init(ZipArchive* za) { + archive = za; + ota_set_fault_files(); +} + +bool should_fault_inject(const char* io_type) { + // archive will be NULL if we used an entry point other + // than updater/updater.cpp:main + if (archive == NULL) { + return false; + } + const std::string type_path = get_type_path(io_type); + if (should_inject_cache.find(type_path) != should_inject_cache.end()) { + return should_inject_cache[type_path]; + } + const ZipEntry* entry = mzFindZipEntry(archive, type_path.c_str()); + should_inject_cache[type_path] = entry != nullptr; + return entry != NULL; +} + +bool should_hit_cache() { + return should_fault_inject(OTAIO_CACHE); +} + +std::string fault_fname(const char* io_type) { + std::string type_path = get_type_path(io_type); + std::string fname; + fname.resize(OTAIO_MAX_FNAME_SIZE); + const ZipEntry* entry = mzFindZipEntry(archive, type_path.c_str()); + mzReadZipEntry(archive, entry, &fname[0], OTAIO_MAX_FNAME_SIZE); + return fname; +} diff --git a/otafault/config.h b/otafault/config.h new file mode 100644 index 000000000..4430be3fb --- /dev/null +++ b/otafault/config.h @@ -0,0 +1,74 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Read configuration files in the OTA package to determine which files, if any, will trigger errors. + * + * OTA packages can be modified to trigger errors by adding a top-level + * directory called .libotafault, which may optionally contain up to three + * files called READ, WRITE, and FSYNC. Each one of these optional files + * contains the name of a single file on the device disk which will cause + * an IO error on the first call of the appropriate I/O action to that file. + * + * Example: + * ota.zip + * <normal package contents> + * .libotafault + * WRITE + * + * If the contents of the file WRITE were /system/build.prop, the first write + * action to /system/build.prop would fail with EIO. Note that READ and + * FSYNC files are absent, so these actions will not cause an error. + */ + +#ifndef _UPDATER_OTA_IO_CFG_H_ +#define _UPDATER_OTA_IO_CFG_H_ + +#include <string> + +#include <stdbool.h> + +#include "minzip/Zip.h" + +#define OTAIO_BASE_DIR ".libotafault" +#define OTAIO_READ "READ" +#define OTAIO_WRITE "WRITE" +#define OTAIO_FSYNC "FSYNC" +#define OTAIO_CACHE "CACHE" + +/* + * Initialize libotafault by providing a reference to the OTA package. + */ +void ota_io_init(ZipArchive* za); + +/* + * Return true if a config file is present for the given IO type. + */ +bool should_fault_inject(const char* io_type); + +/* + * Return true if an EIO should occur on the next hit to /cache/saved.file + * instead of the next hit to the specified file. + */ +bool should_hit_cache(); + +/* + * Return the name of the file that should cause an error for the + * given IO type. + */ +std::string fault_fname(const char* io_type); + +#endif diff --git a/otafault/ota_io.cpp b/otafault/ota_io.cpp new file mode 100644 index 000000000..04458537b --- /dev/null +++ b/otafault/ota_io.cpp @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <map> + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <sys/stat.h> +#include <unistd.h> + +#include "config.h" +#include "ota_io.h" + +static std::map<intptr_t, const char*> filename_cache; +static std::string read_fault_file_name = ""; +static std::string write_fault_file_name = ""; +static std::string fsync_fault_file_name = ""; + +static bool get_hit_file(const char* cached_path, std::string ffn) { + return should_hit_cache() + ? !strncmp(cached_path, OTAIO_CACHE_FNAME, strlen(cached_path)) + : !strncmp(cached_path, ffn.c_str(), strlen(cached_path)); +} + +void ota_set_fault_files() { + if (should_fault_inject(OTAIO_READ)) { + read_fault_file_name = fault_fname(OTAIO_READ); + } + if (should_fault_inject(OTAIO_WRITE)) { + write_fault_file_name = fault_fname(OTAIO_WRITE); + } + if (should_fault_inject(OTAIO_FSYNC)) { + fsync_fault_file_name = fault_fname(OTAIO_FSYNC); + } +} + +bool have_eio_error = false; + +int ota_open(const char* path, int oflags) { + // Let the caller handle errors; we do not care if open succeeds or fails + int fd = open(path, oflags); + filename_cache[fd] = path; + return fd; +} + +int ota_open(const char* path, int oflags, mode_t mode) { + int fd = open(path, oflags, mode); + filename_cache[fd] = path; + return fd; } + +FILE* ota_fopen(const char* path, const char* mode) { + FILE* fh = fopen(path, mode); + filename_cache[(intptr_t)fh] = path; + return fh; +} + +int ota_close(int fd) { + // descriptors can be reused, so make sure not to leave them in the cache + filename_cache.erase(fd); + return close(fd); +} + +int ota_fclose(FILE* fh) { + filename_cache.erase((intptr_t)fh); + return fclose(fh); +} + +size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream) { + if (should_fault_inject(OTAIO_READ)) { + auto cached = filename_cache.find((intptr_t)stream); + const char* cached_path = cached->second; + if (cached != filename_cache.end() && + get_hit_file(cached_path, read_fault_file_name)) { + read_fault_file_name = ""; + errno = EIO; + have_eio_error = true; + return 0; + } + } + size_t status = fread(ptr, size, nitems, stream); + if (status != nitems && errno == EIO) { + have_eio_error = true; + } + return status; +} + +ssize_t ota_read(int fd, void* buf, size_t nbyte) { + if (should_fault_inject(OTAIO_READ)) { + auto cached = filename_cache.find(fd); + const char* cached_path = cached->second; + if (cached != filename_cache.end() + && get_hit_file(cached_path, read_fault_file_name)) { + read_fault_file_name = ""; + errno = EIO; + have_eio_error = true; + return -1; + } + } + ssize_t status = read(fd, buf, nbyte); + if (status == -1 && errno == EIO) { + have_eio_error = true; + } + return status; +} + +size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream) { + if (should_fault_inject(OTAIO_WRITE)) { + auto cached = filename_cache.find((intptr_t)stream); + const char* cached_path = cached->second; + if (cached != filename_cache.end() && + get_hit_file(cached_path, write_fault_file_name)) { + write_fault_file_name = ""; + errno = EIO; + have_eio_error = true; + return 0; + } + } + size_t status = fwrite(ptr, size, count, stream); + if (status != count && errno == EIO) { + have_eio_error = true; + } + return status; +} + +ssize_t ota_write(int fd, const void* buf, size_t nbyte) { + if (should_fault_inject(OTAIO_WRITE)) { + auto cached = filename_cache.find(fd); + const char* cached_path = cached->second; + if (cached != filename_cache.end() && + get_hit_file(cached_path, write_fault_file_name)) { + write_fault_file_name = ""; + errno = EIO; + have_eio_error = true; + return -1; + } + } + ssize_t status = write(fd, buf, nbyte); + if (status == -1 && errno == EIO) { + have_eio_error = true; + } + return status; +} + +int ota_fsync(int fd) { + if (should_fault_inject(OTAIO_FSYNC)) { + auto cached = filename_cache.find(fd); + const char* cached_path = cached->second; + if (cached != filename_cache.end() && + get_hit_file(cached_path, fsync_fault_file_name)) { + fsync_fault_file_name = ""; + errno = EIO; + have_eio_error = true; + return -1; + } + } + int status = fsync(fd); + if (status == -1 && errno == EIO) { + have_eio_error = true; + } + return status; +} + diff --git a/otafault/ota_io.h b/otafault/ota_io.h new file mode 100644 index 000000000..84187a76e --- /dev/null +++ b/otafault/ota_io.h @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * Provide a series of proxy functions for basic file accessors. + * The behavior of these functions can be changed to return different + * errors under a variety of conditions. + */ + +#ifndef _UPDATER_OTA_IO_H_ +#define _UPDATER_OTA_IO_H_ + +#include <stdio.h> +#include <sys/stat.h> + +#define OTAIO_CACHE_FNAME "/cache/saved.file" + +void ota_set_fault_files(); + +int ota_open(const char* path, int oflags); + +int ota_open(const char* path, int oflags, mode_t mode); + +FILE* ota_fopen(const char* filename, const char* mode); + +int ota_close(int fd); + +int ota_fclose(FILE* fh); + +size_t ota_fread(void* ptr, size_t size, size_t nitems, FILE* stream); + +ssize_t ota_read(int fd, void* buf, size_t nbyte); + +size_t ota_fwrite(const void* ptr, size_t size, size_t count, FILE* stream); + +ssize_t ota_write(int fd, const void* buf, size_t nbyte); + +int ota_fsync(int fd); + +#endif diff --git a/otafault/test.cpp b/otafault/test.cpp new file mode 100644 index 000000000..6514782bf --- /dev/null +++ b/otafault/test.cpp @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> + +#include "ota_io.h" + +int main(int /* argc */, char** /* argv */) { + int fd = open("testdata/test.file", O_RDWR); + char buf[8]; + const char* out = "321"; + int readv = ota_read(fd, buf, 4); + printf("Read returned %d\n", readv); + int writev = ota_write(fd, out, 4); + printf("Write returned %d\n", writev); + close(fd); + return 0; +} diff --git a/print_sha1.h b/print_sha1.h new file mode 100644 index 000000000..c7c1f3651 --- /dev/null +++ b/print_sha1.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef RECOVERY_PRINT_SHA1_H +#define RECOVERY_PRINT_SHA1_H + +#include <stdint.h> +#include <string> + +#include "openssl/sha.h" + +static std::string print_sha1(const uint8_t* sha1, size_t len) { + const char* hex = "0123456789abcdef"; + std::string result = ""; + for (size_t i = 0; i < len; ++i) { + result.push_back(hex[(sha1[i]>>4) & 0xf]); + result.push_back(hex[sha1[i] & 0xf]); + } + return result; +} + +static std::string print_sha1(const uint8_t sha1[SHA_DIGEST_LENGTH]) { + return print_sha1(sha1, SHA_DIGEST_LENGTH); +} + +static std::string short_sha1(const uint8_t sha1[SHA_DIGEST_LENGTH]) { + return print_sha1(sha1, 4); +} + +static std::string print_hex(const uint8_t* bytes, size_t len) { + return print_sha1(bytes, len); +} + +#endif // RECOVERY_PRINT_SHA1_H diff --git a/recovery-persist.cpp b/recovery-persist.cpp new file mode 100644 index 000000000..25df03f47 --- /dev/null +++ b/recovery-persist.cpp @@ -0,0 +1,205 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "recovery-persist" + +// +// Strictly to deal with reboot into system after OTA after /data +// mounts to pull the last pmsg file data and place it +// into /data/misc/recovery/ directory, rotating it in. +// +// Usage: recovery-persist [--force-persist] +// +// On systems without /cache mount, all file content representing in the +// recovery/ directory stored in /sys/fs/pstore/pmsg-ramoops-0 in logger +// format that reside in the LOG_ID_SYSTEM buffer at ANDROID_LOG_INFO +// priority or higher is transfered to the /data/misc/recovery/ directory. +// The content is matched and rotated in as need be. +// +// --force-persist ignore /cache mount, always rotate in the contents. +// + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include <string> + +#include <android/log.h> /* Android Log Priority Tags */ +#include <android-base/file.h> +#include <log/log.h> +#include <log/logger.h> /* Android Log packet format */ +#include <private/android_logger.h> /* private pmsg functions */ + +static const char *LAST_LOG_FILE = "/data/misc/recovery/last_log"; +static const char *LAST_PMSG_FILE = "/sys/fs/pstore/pmsg-ramoops-0"; +static const char *LAST_KMSG_FILE = "/data/misc/recovery/last_kmsg"; +static const char *LAST_CONSOLE_FILE = "/sys/fs/pstore/console-ramoops-0"; +static const char *ALT_LAST_CONSOLE_FILE = "/sys/fs/pstore/console-ramoops"; + +static const int KEEP_LOG_COUNT = 10; + +// close a file, log an error if the error indicator is set +static void check_and_fclose(FILE *fp, const char *name) { + fflush(fp); + if (ferror(fp)) SLOGE("%s %s", name, strerror(errno)); + fclose(fp); +} + +static void copy_file(const char* source, const char* destination) { + FILE* dest_fp = fopen(destination, "w"); + if (dest_fp == nullptr) { + SLOGE("%s %s", destination, strerror(errno)); + } else { + FILE* source_fp = fopen(source, "r"); + if (source_fp != nullptr) { + char buf[4096]; + size_t bytes; + while ((bytes = fread(buf, 1, sizeof(buf), source_fp)) != 0) { + fwrite(buf, 1, bytes, dest_fp); + } + check_and_fclose(source_fp, source); + } + check_and_fclose(dest_fp, destination); + } +} + +static bool rotated = false; + +// Rename last_log -> last_log.1 -> last_log.2 -> ... -> last_log.$max. +// Similarly rename last_kmsg -> last_kmsg.1 -> ... -> last_kmsg.$max. +// Overwrite any existing last_log.$max and last_kmsg.$max. +static void rotate_logs(int max) { + // Logs should only be rotated once. + + if (rotated) { + return; + } + rotated = true; + + for (int i = max-1; i >= 0; --i) { + std::string old_log(LAST_LOG_FILE); + if (i > 0) { + old_log += "." + std::to_string(i); + } + std::string new_log(LAST_LOG_FILE); + new_log += "." + std::to_string(i+1); + + // Ignore errors if old_log doesn't exist. + rename(old_log.c_str(), new_log.c_str()); + + std::string old_kmsg(LAST_KMSG_FILE); + if (i > 0) { + old_kmsg += "." + std::to_string(i); + } + std::string new_kmsg(LAST_KMSG_FILE); + new_kmsg += "." + std::to_string(i+1); + + rename(old_kmsg.c_str(), new_kmsg.c_str()); + } +} + +ssize_t logsave( + log_id_t /* logId */, + char /* prio */, + const char *filename, + const char *buf, size_t len, + void * /* arg */) { + + std::string destination("/data/misc/"); + destination += filename; + + std::string buffer(buf, len); + + { + std::string content; + android::base::ReadFileToString(destination, &content); + + if (buffer.compare(content) == 0) { + return len; + } + } + + // ToDo: Any others that match? Are we pulling in multiple + // already-rotated files? Algorithm thus far is KISS: one file, + // one rotation allowed. + + rotate_logs(KEEP_LOG_COUNT); + + return android::base::WriteStringToFile(buffer, destination.c_str()); +} + +int main(int argc, char **argv) { + + /* Is /cache a mount?, we have been delivered where we are not wanted */ + /* + * Following code halves the size of the executable as compared to: + * + * load_volume_table(); + * has_cache = volume_for_path(CACHE_ROOT) != nullptr; + */ + bool has_cache = false; + static const char mounts_file[] = "/proc/mounts"; + FILE *fp = fopen(mounts_file, "r"); + if (!fp) { + SLOGV("%s %s", mounts_file, strerror(errno)); + } else { + char *line = NULL; + size_t len = 0; + ssize_t read; + while ((read = getline(&line, &len, fp)) != -1) { + if (strstr(line, " /cache ")) { + has_cache = true; + break; + } + } + free(line); + fclose(fp); + } + + if (has_cache) { + /* + * TBD: Future location to move content from + * /cache/recovery to /data/misc/recovery/ + */ + /* if --force-persist flag, then transfer pmsg data anyways */ + if ((argc <= 1) || !argv[1] || strcmp(argv[1], "--force-persist")) { + return 0; + } + } + + /* Is there something in pmsg? */ + if (access(LAST_PMSG_FILE, R_OK)) { + return 0; + } + + // Take last pmsg file contents and send it off to the logsave + __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, "recovery/", logsave, NULL); + + /* Is there a last console log too? */ + if (rotated) { + if (!access(LAST_CONSOLE_FILE, R_OK)) { + copy_file(LAST_CONSOLE_FILE, LAST_KMSG_FILE); + } else if (!access(ALT_LAST_CONSOLE_FILE, R_OK)) { + copy_file(ALT_LAST_CONSOLE_FILE, LAST_KMSG_FILE); + } + } + + return 0; +} diff --git a/recovery-persist.rc b/recovery-persist.rc new file mode 100644 index 000000000..6761627d5 --- /dev/null +++ b/recovery-persist.rc @@ -0,0 +1,3 @@ +on post-fs-data + mkdir /data/misc/recovery 0770 system log + exec - system log -- /system/bin/recovery-persist diff --git a/recovery-refresh.cpp b/recovery-refresh.cpp new file mode 100644 index 000000000..70adc70ee --- /dev/null +++ b/recovery-refresh.cpp @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "recovery-refresh" + +// +// Strictly to deal with reboot into system after OTA, then +// reboot while in system before boot complete landing us back +// into recovery to continue with any mitigations with retained +// log history. This simply refreshes the pmsg files from +// the last pmsg file contents. +// +// Usage: +// recovery-refresh [--force-rotate|--rotate] +// +// All file content representing in the recovery/ directory stored in +// /sys/fs/pstore/pmsg-ramoops-0 in logger format that reside in the +// LOG_ID_SYSTEM buffer at ANDROID_LOG_INFO priority or higher is +// refreshed into /dev/pmsg0. This ensures that an unexpected reboot +// before recovery-persist is run will still contain the associated +// pmsg Android Logger content. +// +// --force-rotate recovery/last_kmsg and recovery.last_log files are +// rotated with .<number> suffixes upwards. +// --rotate rotated only if rocovery/last_msg or recovery/last_log +// exist, otherwise perform 1:1 refresh. +// + +#include <string.h> + +#include <string> + +#include <android/log.h> /* Android Log Priority Tags */ +#include <log/logger.h> /* Android Log packet format */ +#include <private/android_logger.h> /* private pmsg functions */ + +static const char LAST_KMSG_FILE[] = "recovery/last_kmsg"; +static const char LAST_LOG_FILE[] = "recovery/last_log"; + +static ssize_t logbasename( + log_id_t /* logId */, + char /* prio */, + const char *filename, + const char * /* buf */, size_t len, + void *arg) { + if (strstr(LAST_KMSG_FILE, filename) || + strstr(LAST_LOG_FILE, filename)) { + bool *doRotate = reinterpret_cast<bool *>(arg); + *doRotate = true; + } + return len; +} + +static ssize_t logrotate( + log_id_t logId, + char prio, + const char *filename, + const char *buf, size_t len, + void *arg) { + bool *doRotate = reinterpret_cast<bool *>(arg); + if (!*doRotate) { + return __android_log_pmsg_file_write(logId, prio, filename, buf, len); + } + + std::string name(filename); + size_t dot = name.find_last_of("."); + std::string sub = name.substr(0, dot); + + if (!strstr(LAST_KMSG_FILE, sub.c_str()) && + !strstr(LAST_LOG_FILE, sub.c_str())) { + return __android_log_pmsg_file_write(logId, prio, filename, buf, len); + } + + // filename rotation + if (dot == std::string::npos) { + name += ".1"; + } else { + std::string number = name.substr(dot + 1); + if (!isdigit(number.data()[0])) { + name += ".1"; + } else { + unsigned long long i = std::stoull(number); + name = sub + "." + std::to_string(i + 1); + } + } + + return __android_log_pmsg_file_write(logId, prio, name.c_str(), buf, len); +} + +int main(int argc, char **argv) { + static const char filter[] = "recovery/"; + static const char force_rotate_flag[] = "--force-rotate"; + static const char rotate_flag[] = "--rotate"; + ssize_t ret; + bool doRotate = false; + + // Take last pmsg contents and rewrite it to the current pmsg session. + if ((argc <= 1) || !argv[1] || + (((doRotate = strcmp(argv[1], rotate_flag))) && + strcmp(argv[1], force_rotate_flag))) { + doRotate = false; + } else if (!doRotate) { + // Do we need to rotate? + __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, + logbasename, &doRotate); + } + + // Take action to refresh pmsg contents + ret = __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, + logrotate, &doRotate); + + return (ret < 0) ? ret : 0; +} diff --git a/recovery-refresh.rc b/recovery-refresh.rc new file mode 100644 index 000000000..14b05cca4 --- /dev/null +++ b/recovery-refresh.rc @@ -0,0 +1,2 @@ +on post-fs + exec - system log -- /system/bin/recovery-refresh diff --git a/recovery.cpp b/recovery.cpp index b7a545898..6b6643fab 100644 --- a/recovery.cpp +++ b/recovery.cpp @@ -28,33 +28,44 @@ #include <sys/klog.h> #include <sys/stat.h> #include <sys/types.h> +#include <sys/wait.h> #include <time.h> #include <unistd.h> -#include <base/file.h> -#include <base/stringprintf.h> +#include <chrono> +#include <adb.h> +#include <android/log.h> /* Android Log Priority Tags */ +#include <android-base/file.h> +#include <android-base/parseint.h> +#include <android-base/stringprintf.h> +#include <cutils/android_reboot.h> +#include <cutils/properties.h> +#include <log/logger.h> /* Android Log packet format */ +#include <private/android_logger.h> /* private pmsg functions */ + +#include <healthd/BatteryMonitor.h> + +#include "adb_install.h" #include "bootloader.h" #include "common.h" -#include "cutils/properties.h" -#include "cutils/android_reboot.h" +#include "device.h" +#include "error_code.h" +#include "fuse_sdcard_provider.h" +#include "fuse_sideload.h" #include "install.h" #include "minui/minui.h" #include "minzip/DirUtil.h" #include "roots.h" #include "ui.h" #include "screen_ui.h" -#include "device.h" -#include "adb_install.h" -#include "adb.h" -#include "fuse_sideload.h" -#include "fuse_sdcard_provider.h" struct selabel_handle *sehandle; static const struct option OPTIONS[] = { { "send_intent", required_argument, NULL, 'i' }, { "update_package", required_argument, NULL, 'u' }, + { "retry_count", required_argument, NULL, 'n' }, { "wipe_data", no_argument, NULL, 'w' }, { "wipe_cache", no_argument, NULL, 'c' }, { "show_text", no_argument, NULL, 't' }, @@ -65,6 +76,7 @@ static const struct option OPTIONS[] = { { "stages", required_argument, NULL, 'g' }, { "shutdown_after", no_argument, NULL, 'p' }, { "reason", required_argument, NULL, 'r' }, + { "security", no_argument, NULL, 'e'}, { NULL, 0, NULL, 0 }, }; @@ -74,19 +86,30 @@ static const char *INTENT_FILE = "/cache/recovery/intent"; static const char *LOG_FILE = "/cache/recovery/log"; static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install"; static const char *LOCALE_FILE = "/cache/recovery/last_locale"; +static const char *CONVERT_FBE_DIR = "/tmp/convert_fbe"; +static const char *CONVERT_FBE_FILE = "/tmp/convert_fbe/convert_fbe"; static const char *CACHE_ROOT = "/cache"; +static const char *DATA_ROOT = "/data"; static const char *SDCARD_ROOT = "/sdcard"; static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log"; static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install"; static const char *LAST_KMSG_FILE = "/cache/recovery/last_kmsg"; static const char *LAST_LOG_FILE = "/cache/recovery/last_log"; static const int KEEP_LOG_COUNT = 10; +static const int EIO_RETRY_COUNT = 2; +static const int BATTERY_READ_TIMEOUT_IN_SEC = 10; +// GmsCore enters recovery mode to install package when having enough battery +// percentage. Normally, the threshold is 40% without charger and 20% with charger. +// So we should check battery with a slightly lower limitation. +static const int BATTERY_OK_PERCENTAGE = 20; +static const int BATTERY_WITH_CHARGER_OK_PERCENTAGE = 15; RecoveryUI* ui = NULL; -char* locale = NULL; +static const char* locale = "en_US"; char* stage = NULL; char* reason = NULL; bool modified_flash = false; +static bool has_cache = false; /* * The recovery tool communicates with the main system through /cache files. @@ -151,8 +174,7 @@ static const int MAX_ARG_LENGTH = 4096; static const int MAX_ARGS = 100; // open a given path, mounting partitions as necessary -FILE* -fopen_path(const char *path, const char *mode) { +FILE* fopen_path(const char *path, const char *mode) { if (ensure_path_mounted(path) != 0) { LOGE("Can't mount %s\n", path); return NULL; @@ -166,23 +188,102 @@ fopen_path(const char *path, const char *mode) { return fp; } +// close a file, log an error if the error indicator is set +static void check_and_fclose(FILE *fp, const char *name) { + fflush(fp); + if (ferror(fp)) LOGE("Error in %s\n(%s)\n", name, strerror(errno)); + fclose(fp); +} + bool is_ro_debuggable() { char value[PROPERTY_VALUE_MAX+1]; return (property_get("ro.debuggable", value, NULL) == 1 && value[0] == '1'); } static void redirect_stdio(const char* filename) { - // If these fail, there's not really anywhere to complain... - freopen(filename, "a", stdout); setbuf(stdout, NULL); - freopen(filename, "a", stderr); setbuf(stderr, NULL); -} + int pipefd[2]; + if (pipe(pipefd) == -1) { + LOGE("pipe failed: %s\n", strerror(errno)); -// close a file, log an error if the error indicator is set -static void -check_and_fclose(FILE *fp, const char *name) { - fflush(fp); - if (ferror(fp)) LOGE("Error in %s\n(%s)\n", name, strerror(errno)); - fclose(fp); + // Fall back to traditional logging mode without timestamps. + // If these fail, there's not really anywhere to complain... + freopen(filename, "a", stdout); setbuf(stdout, NULL); + freopen(filename, "a", stderr); setbuf(stderr, NULL); + + return; + } + + pid_t pid = fork(); + if (pid == -1) { + LOGE("fork failed: %s\n", strerror(errno)); + + // Fall back to traditional logging mode without timestamps. + // If these fail, there's not really anywhere to complain... + freopen(filename, "a", stdout); setbuf(stdout, NULL); + freopen(filename, "a", stderr); setbuf(stderr, NULL); + + return; + } + + if (pid == 0) { + /// Close the unused write end. + close(pipefd[1]); + + auto start = std::chrono::steady_clock::now(); + + // Child logger to actually write to the log file. + FILE* log_fp = fopen(filename, "a"); + if (log_fp == nullptr) { + LOGE("fopen \"%s\" failed: %s\n", filename, strerror(errno)); + close(pipefd[0]); + _exit(1); + } + + FILE* pipe_fp = fdopen(pipefd[0], "r"); + if (pipe_fp == nullptr) { + LOGE("fdopen failed: %s\n", strerror(errno)); + check_and_fclose(log_fp, filename); + close(pipefd[0]); + _exit(1); + } + + char* line = nullptr; + size_t len = 0; + while (getline(&line, &len, pipe_fp) != -1) { + auto now = std::chrono::steady_clock::now(); + double duration = std::chrono::duration_cast<std::chrono::duration<double>>( + now - start).count(); + if (line[0] == '\n') { + fprintf(log_fp, "[%12.6lf]\n", duration); + } else { + fprintf(log_fp, "[%12.6lf] %s", duration, line); + } + fflush(log_fp); + } + + LOGE("getline failed: %s\n", strerror(errno)); + + free(line); + check_and_fclose(log_fp, filename); + close(pipefd[0]); + _exit(1); + } else { + // Redirect stdout/stderr to the logger process. + // Close the unused read end. + close(pipefd[0]); + + setbuf(stdout, nullptr); + setbuf(stderr, nullptr); + + if (dup2(pipefd[1], STDOUT_FILENO) == -1) { + LOGE("dup2 stdout failed: %s\n", strerror(errno)); + } + if (dup2(pipefd[1], STDERR_FILENO) == -1) { + LOGE("dup2 stderr failed: %s\n", strerror(errno)); + } + + close(pipefd[1]); + } } // command line args come from, in decreasing precedence: @@ -221,8 +322,8 @@ get_args(int *argc, char ***argv) { } } - // --- if that doesn't work, try the command file - if (*argc <= 1) { + // --- if that doesn't work, try the command file (if we have /cache). + if (*argc <= 1 && has_cache) { FILE *fp = fopen_path(COMMAND_FILE, "r"); if (fp != NULL) { char *token; @@ -285,6 +386,18 @@ static void save_kernel_log(const char* destination) { android::base::WriteStringToFile(buffer, destination); } +// write content to the current pmsg session. +static ssize_t __pmsg_write(const char *filename, const char *buf, size_t len) { + return __android_log_pmsg_file_write(LOG_ID_SYSTEM, ANDROID_LOG_INFO, + filename, buf, len); +} + +static void copy_log_file_to_pmsg(const char* source, const char* destination) { + std::string content; + android::base::ReadFileToString(source, &content); + __pmsg_write(destination, content.c_str(), content.length()); +} + // How much of the temp log we have copied to the copy in cache. static long tmplog_offset = 0; @@ -326,14 +439,18 @@ static void rotate_logs(int max) { ensure_path_mounted(LAST_KMSG_FILE); for (int i = max-1; i >= 0; --i) { - std::string old_log = android::base::StringPrintf((i == 0) ? "%s" : "%s.%d", - LAST_LOG_FILE, i); + std::string old_log = android::base::StringPrintf("%s", LAST_LOG_FILE); + if (i > 0) { + old_log += "." + std::to_string(i); + } std::string new_log = android::base::StringPrintf("%s.%d", LAST_LOG_FILE, i+1); // Ignore errors if old_log doesn't exist. rename(old_log.c_str(), new_log.c_str()); - std::string old_kmsg = android::base::StringPrintf((i == 0) ? "%s" : "%s.%d", - LAST_KMSG_FILE, i); + std::string old_kmsg = android::base::StringPrintf("%s", LAST_KMSG_FILE); + if (i > 0) { + old_kmsg += "." + std::to_string(i); + } std::string new_kmsg = android::base::StringPrintf("%s.%d", LAST_KMSG_FILE, i+1); rename(old_kmsg.c_str(), new_kmsg.c_str()); } @@ -348,6 +465,15 @@ static void copy_logs() { return; } + // Always write to pmsg, this allows the OTA logs to be caught in logcat -L + copy_log_file_to_pmsg(TEMPORARY_LOG_FILE, LAST_LOG_FILE); + copy_log_file_to_pmsg(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE); + + // We can do nothing for now if there's no /cache partition. + if (!has_cache) { + return; + } + rotate_logs(KEEP_LOG_COUNT); // Copy logs to cache so the system can find out what happened. @@ -371,7 +497,7 @@ static void copy_logs() { static void finish_recovery(const char *send_intent) { // By this point, we're ready to return to the main system... - if (send_intent != NULL) { + if (send_intent != NULL && has_cache) { FILE *fp = fopen_path(INTENT_FILE, "w"); if (fp == NULL) { LOGE("Can't open %s\n", INTENT_FILE); @@ -385,12 +511,16 @@ finish_recovery(const char *send_intent) { // without a --locale argument (eg, directly from the bootloader) // it will use the last-known locale. if (locale != NULL) { - LOGI("Saving locale \"%s\"\n", locale); - FILE* fp = fopen_path(LOCALE_FILE, "w"); - fwrite(locale, 1, strlen(locale), fp); - fflush(fp); - fsync(fileno(fp)); - check_and_fclose(fp, LOCALE_FILE); + size_t len = strlen(locale); + __pmsg_write(LOCALE_FILE, locale, len); + if (has_cache) { + LOGI("Saving locale \"%s\"\n", locale); + FILE* fp = fopen_path(LOCALE_FILE, "w"); + fwrite(locale, 1, len, fp); + fflush(fp); + fsync(fileno(fp)); + check_and_fclose(fp, LOCALE_FILE); + } } copy_logs(); @@ -401,12 +531,13 @@ finish_recovery(const char *send_intent) { set_bootloader_message(&boot); // Remove the command file, so recovery won't repeat indefinitely. - if (ensure_path_mounted(COMMAND_FILE) != 0 || - (unlink(COMMAND_FILE) && errno != ENOENT)) { - LOGW("Can't unlink %s\n", COMMAND_FILE); + if (has_cache) { + if (ensure_path_mounted(COMMAND_FILE) != 0 || (unlink(COMMAND_FILE) && errno != ENOENT)) { + LOGW("Can't unlink %s\n", COMMAND_FILE); + } + ensure_path_unmounted(CACHE_ROOT); } - ensure_path_unmounted(CACHE_ROOT); sync(); // For good measure. } @@ -419,6 +550,7 @@ typedef struct _saved_log_file { static bool erase_volume(const char* volume) { bool is_cache = (strcmp(volume, CACHE_ROOT) == 0); + bool is_data = (strcmp(volume, DATA_ROOT) == 0); ui->SetBackground(RecoveryUI::ERASING); ui->SetProgressType(RecoveryUI::INDETERMINATE); @@ -473,7 +605,28 @@ static bool erase_volume(const char* volume) { ui->Print("Formatting %s...\n", volume); ensure_path_unmounted(volume); - int result = format_volume(volume); + + int result; + + if (is_data && reason && strcmp(reason, "convert_fbe") == 0) { + // Create convert_fbe breadcrumb file to signal to init + // to convert to file based encryption, not full disk encryption + if (mkdir(CONVERT_FBE_DIR, 0700) != 0) { + ui->Print("Failed to make convert_fbe dir %s\n", strerror(errno)); + return true; + } + FILE* f = fopen(CONVERT_FBE_FILE, "wb"); + if (!f) { + ui->Print("Failed to convert to file encryption %s\n", strerror(errno)); + return true; + } + fclose(f); + result = format_volume(volume, CONVERT_FBE_DIR); + remove(CONVERT_FBE_FILE); + rmdir(CONVERT_FBE_DIR); + } else { + result = format_volume(volume); + } if (is_cache) { while (head) { @@ -675,7 +828,7 @@ static bool wipe_data(int should_confirm, Device* device) { bool success = device->PreWipeData() && erase_volume("/data") && - erase_volume("/cache") && + (has_cache ? erase_volume("/cache") : true) && device->PostWipeData(); ui->Print("Data wipe %s.\n", success ? "complete" : "failed"); return success; @@ -683,6 +836,11 @@ static bool wipe_data(int should_confirm, Device* device) { // Return true on success. static bool wipe_cache(bool should_confirm, Device* device) { + if (!has_cache) { + ui->Print("No /cache partition found.\n"); + return false; + } + if (should_confirm && !yes_no(device, "Wipe cache?", " THIS CAN NOT BE UNDONE!")) { return false; } @@ -696,6 +854,11 @@ static bool wipe_cache(bool should_confirm, Device* device) { } static void choose_recovery_file(Device* device) { + if (!has_cache) { + ui->Print("No /cache partition found.\n"); + return; + } + // "Back" + KEEP_LOG_COUNT * 2 + terminating nullptr entry char* entries[1 + KEEP_LOG_COUNT * 2 + 1]; memset(entries, 0, sizeof(entries)); @@ -706,7 +869,10 @@ static void choose_recovery_file(Device* device) { // Add LAST_KMSG_FILE + LAST_KMSG_FILE.x for (int i = 0; i < KEEP_LOG_COUNT; i++) { char* log_file; - if (asprintf(&log_file, (i == 0) ? "%s" : "%s.%d", LAST_LOG_FILE, i) == -1) { + int ret; + ret = (i == 0) ? asprintf(&log_file, "%s", LAST_LOG_FILE) : + asprintf(&log_file, "%s.%d", LAST_LOG_FILE, i); + if (ret == -1) { // memory allocation failure - return early. Should never happen. return; } @@ -717,7 +883,9 @@ static void choose_recovery_file(Device* device) { } char* kmsg_file; - if (asprintf(&kmsg_file, (i == 0) ? "%s" : "%s.%d", LAST_KMSG_FILE, i) == -1) { + ret = (i == 0) ? asprintf(&kmsg_file, "%s", LAST_KMSG_FILE) : + asprintf(&kmsg_file, "%s.%d", LAST_KMSG_FILE, i); + if (ret == -1) { // memory allocation failure - return early. Should never happen. return; } @@ -736,10 +904,7 @@ static void choose_recovery_file(Device* device) { int chosen_item = get_menu_selection(headers, entries, 1, 0, device); if (strcmp(entries[chosen_item], "Back") == 0) break; - // TODO: do we need to redirect? ShowFile could just avoid writing to stdio. - redirect_stdio("/dev/null"); ui->ShowFile(entries[chosen_item]); - redirect_stdio(TEMPORARY_LOG_FILE); } for (size_t i = 0; i < (sizeof(entries) / sizeof(*entries)); i++) { @@ -747,6 +912,41 @@ static void choose_recovery_file(Device* device) { } } +static void run_graphics_test(Device* device) { + // Switch to graphics screen. + ui->ShowText(false); + + ui->SetProgressType(RecoveryUI::INDETERMINATE); + ui->SetBackground(RecoveryUI::INSTALLING_UPDATE); + sleep(1); + + ui->SetBackground(RecoveryUI::ERROR); + sleep(1); + + ui->SetBackground(RecoveryUI::NO_COMMAND); + sleep(1); + + ui->SetBackground(RecoveryUI::ERASING); + sleep(1); + + ui->SetBackground(RecoveryUI::INSTALLING_UPDATE); + + ui->SetProgressType(RecoveryUI::DETERMINATE); + ui->ShowProgress(1.0, 10.0); + float fraction = 0.0; + for (size_t i = 0; i < 100; ++i) { + fraction += .01; + ui->SetProgress(fraction); + usleep(100000); + } + + ui->ShowText(true); +} + +// How long (in seconds) we wait for the fuse-provided package file to +// appear, before timing out. +#define SDCARD_INSTALL_TIMEOUT 10 + static int apply_from_sdcard(Device* device, bool* wipe_cache) { modified_flash = true; @@ -758,19 +958,68 @@ static int apply_from_sdcard(Device* device, bool* wipe_cache) { char* path = browse_directory(SDCARD_ROOT, device); if (path == NULL) { ui->Print("\n-- No package file selected.\n"); + ensure_path_unmounted(SDCARD_ROOT); return INSTALL_ERROR; } ui->Print("\n-- Install %s ...\n", path); set_sdcard_update_bootloader_message(); - void* token = start_sdcard_fuse(path); - int status = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, - TEMPORARY_INSTALL_FILE, false); + // We used to use fuse in a thread as opposed to a process. Since accessing + // through fuse involves going from kernel to userspace to kernel, it leads + // to deadlock when a page fault occurs. (Bug: 26313124) + pid_t child; + if ((child = fork()) == 0) { + bool status = start_sdcard_fuse(path); + + _exit(status ? EXIT_SUCCESS : EXIT_FAILURE); + } + + // FUSE_SIDELOAD_HOST_PATHNAME will start to exist once the fuse in child + // process is ready. + int result = INSTALL_ERROR; + int status; + bool waited = false; + for (int i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) { + if (waitpid(child, &status, WNOHANG) == -1) { + result = INSTALL_ERROR; + waited = true; + break; + } + + struct stat sb; + if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &sb) == -1) { + if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) { + sleep(1); + continue; + } else { + LOGE("Timed out waiting for the fuse-provided package.\n"); + result = INSTALL_ERROR; + kill(child, SIGKILL); + break; + } + } + + result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, wipe_cache, + TEMPORARY_INSTALL_FILE, false, 0/*retry_count*/); + break; + } + + if (!waited) { + // Calling stat() on this magic filename signals the fuse + // filesystem to shut down. + struct stat sb; + stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &sb); + + waitpid(child, &status, 0); + } + + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + LOGE("Error exit from the fuse process: %d\n", WEXITSTATUS(status)); + } - finish_sdcard_fuse(token); ensure_path_unmounted(SDCARD_ROOT); - return status; + return result; } // Return REBOOT, SHUTDOWN, or REBOOT_BOOTLOADER. Returning NO_ACTION @@ -852,10 +1101,29 @@ prompt_and_wait(Device* device, int status) { choose_recovery_file(device); break; + case Device::RUN_GRAPHICS_TEST: + run_graphics_test(device); + break; + case Device::MOUNT_SYSTEM: - if (ensure_path_mounted("/system") != -1) { - ui->Print("Mounted /system.\n"); + char system_root_image[PROPERTY_VALUE_MAX]; + property_get("ro.build.system_root_image", system_root_image, ""); + + // For a system image built with the root directory (i.e. + // system_root_image == "true"), we mount it to /system_root, and symlink /system + // to /system_root/system to make adb shell work (the symlink is created through + // the build system). + // Bug: 22855115 + if (strcmp(system_root_image, "true") == 0) { + if (ensure_path_mounted_at("/", "/system_root") != -1) { + ui->Print("Mounted /system.\n"); + } + } else { + if (ensure_path_mounted("/system") != -1) { + ui->Print("Mounted /system.\n"); + } } + break; } } @@ -903,11 +1171,145 @@ ui_print(const char* format, ...) { } } -int -main(int argc, char **argv) { - time_t start = time(NULL); +static bool is_battery_ok() { + struct healthd_config healthd_config = { + .batteryStatusPath = android::String8(android::String8::kEmptyString), + .batteryHealthPath = android::String8(android::String8::kEmptyString), + .batteryPresentPath = android::String8(android::String8::kEmptyString), + .batteryCapacityPath = android::String8(android::String8::kEmptyString), + .batteryVoltagePath = android::String8(android::String8::kEmptyString), + .batteryTemperaturePath = android::String8(android::String8::kEmptyString), + .batteryTechnologyPath = android::String8(android::String8::kEmptyString), + .batteryCurrentNowPath = android::String8(android::String8::kEmptyString), + .batteryCurrentAvgPath = android::String8(android::String8::kEmptyString), + .batteryChargeCounterPath = android::String8(android::String8::kEmptyString), + .batteryFullChargePath = android::String8(android::String8::kEmptyString), + .batteryCycleCountPath = android::String8(android::String8::kEmptyString), + .energyCounter = NULL, + .boot_min_cap = 0, + .screen_on = NULL + }; + healthd_board_init(&healthd_config); - redirect_stdio(TEMPORARY_LOG_FILE); + android::BatteryMonitor monitor; + monitor.init(&healthd_config); + + int wait_second = 0; + while (true) { + int charge_status = monitor.getChargeStatus(); + // Treat unknown status as charged. + bool charged = (charge_status != android::BATTERY_STATUS_DISCHARGING && + charge_status != android::BATTERY_STATUS_NOT_CHARGING); + android::BatteryProperty capacity; + android::status_t status = monitor.getProperty(android::BATTERY_PROP_CAPACITY, &capacity); + ui_print("charge_status %d, charged %d, status %d, capacity %lld\n", charge_status, + charged, status, capacity.valueInt64); + // At startup, the battery drivers in devices like N5X/N6P take some time to load + // the battery profile. Before the load finishes, it reports value 50 as a fake + // capacity. BATTERY_READ_TIMEOUT_IN_SEC is set that the battery drivers are expected + // to finish loading the battery profile earlier than 10 seconds after kernel startup. + if (status == 0 && capacity.valueInt64 == 50) { + if (wait_second < BATTERY_READ_TIMEOUT_IN_SEC) { + sleep(1); + wait_second++; + continue; + } + } + // If we can't read battery percentage, it may be a device without battery. In this + // situation, use 100 as a fake battery percentage. + if (status != 0) { + capacity.valueInt64 = 100; + } + return (charged && capacity.valueInt64 >= BATTERY_WITH_CHARGER_OK_PERCENTAGE) || + (!charged && capacity.valueInt64 >= BATTERY_OK_PERCENTAGE); + } +} + +static void set_retry_bootloader_message(int retry_count, int argc, char** argv) { + struct bootloader_message boot {}; + strlcpy(boot.command, "boot-recovery", sizeof(boot.command)); + strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery)); + + for (int i = 1; i < argc; ++i) { + if (strstr(argv[i], "retry_count") == nullptr) { + strlcat(boot.recovery, argv[i], sizeof(boot.recovery)); + strlcat(boot.recovery, "\n", sizeof(boot.recovery)); + } + } + + // Initialize counter to 1 if it's not in BCB, otherwise increment it by 1. + if (retry_count == 0) { + strlcat(boot.recovery, "--retry_count=1\n", sizeof(boot.recovery)); + } else { + char buffer[20]; + snprintf(buffer, sizeof(buffer), "--retry_count=%d\n", retry_count+1); + strlcat(boot.recovery, buffer, sizeof(boot.recovery)); + } + set_bootloader_message(&boot); +} + +static ssize_t logbasename( + log_id_t /* logId */, + char /* prio */, + const char *filename, + const char * /* buf */, size_t len, + void *arg) { + if (strstr(LAST_KMSG_FILE, filename) || + strstr(LAST_LOG_FILE, filename)) { + bool *doRotate = reinterpret_cast<bool *>(arg); + *doRotate = true; + } + return len; +} + +static ssize_t logrotate( + log_id_t logId, + char prio, + const char *filename, + const char *buf, size_t len, + void *arg) { + bool *doRotate = reinterpret_cast<bool *>(arg); + if (!*doRotate) { + return __android_log_pmsg_file_write(logId, prio, filename, buf, len); + } + + std::string name(filename); + size_t dot = name.find_last_of("."); + std::string sub = name.substr(0, dot); + + if (!strstr(LAST_KMSG_FILE, sub.c_str()) && + !strstr(LAST_LOG_FILE, sub.c_str())) { + return __android_log_pmsg_file_write(logId, prio, filename, buf, len); + } + + // filename rotation + if (dot == std::string::npos) { + name += ".1"; + } else { + std::string number = name.substr(dot + 1); + if (!isdigit(number.data()[0])) { + name += ".1"; + } else { + unsigned long long i = std::stoull(number); + name = sub + "." + std::to_string(i + 1); + } + } + + return __android_log_pmsg_file_write(logId, prio, name.c_str(), buf, len); +} + +int main(int argc, char **argv) { + // Take last pmsg contents and rewrite it to the current pmsg session. + static const char filter[] = "recovery/"; + // Do we need to rotate? + bool doRotate = false; + __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, + logbasename, &doRotate); + // Take action to refresh pmsg contents + __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, filter, + logrotate, &doRotate); // If this binary is started with the single argument "--adbd", // instead of being the normal recovery binary, it turns into kind @@ -917,13 +1319,21 @@ main(int argc, char **argv) { // only way recovery should be run with this argument is when it // starts a copy of itself from the apply_from_adb() function. if (argc == 2 && strcmp(argv[1], "--adbd") == 0) { - adb_main(0, DEFAULT_ADB_PORT); + adb_server_main(0, DEFAULT_ADB_PORT, -1); return 0; } + time_t start = time(NULL); + + // redirect_stdio should be called only in non-sideload mode. Otherwise + // we may have two logger instances with different timestamps. + redirect_stdio(TEMPORARY_LOG_FILE); + printf("Starting recovery (pid %d) on %s", getpid(), ctime(&start)); load_volume_table(); + has_cache = volume_for_path(CACHE_ROOT) != nullptr; + get_args(&argc, &argv); const char *send_intent = NULL; @@ -935,11 +1345,14 @@ main(int argc, char **argv) { bool sideload_auto_reboot = false; bool just_exit = false; bool shutdown_after = false; + int retry_count = 0; + bool security_update = false; int arg; while ((arg = getopt_long(argc, argv, "", OPTIONS, NULL)) != -1) { switch (arg) { case 'i': send_intent = optarg; break; + case 'n': android::base::ParseInt(optarg, &retry_count, 0); break; case 'u': update_package = optarg; break; case 'w': should_wipe_data = true; break; case 'c': should_wipe_cache = true; break; @@ -958,13 +1371,14 @@ main(int argc, char **argv) { } case 'p': shutdown_after = true; break; case 'r': reason = optarg; break; + case 'e': security_update = true; break; case '?': LOGE("Invalid command argument\n"); continue; } } - if (locale == NULL) { + if (locale == nullptr && has_cache) { load_locale_from_cache(); } printf("locale is [%s]\n", locale); @@ -977,6 +1391,9 @@ main(int argc, char **argv) { ui->SetLocale(locale); ui->Init(); + // Set background string to "installing security update" for security update, + // otherwise set it to "installing system update". + ui->SetSystemUpdateText(security_update); int st_cur, st_max; if (stage != NULL && sscanf(stage, "%d/%d", &st_cur, &st_max) == 2) { @@ -1011,11 +1428,15 @@ main(int argc, char **argv) { if (strncmp(update_package, "CACHE:", 6) == 0) { int len = strlen(update_package) + 10; char* modified_path = (char*)malloc(len); - strlcpy(modified_path, "/cache/", len); - strlcat(modified_path, update_package+6, len); - printf("(replacing path \"%s\" with \"%s\")\n", - update_package, modified_path); - update_package = modified_path; + if (modified_path) { + strlcpy(modified_path, "/cache/", len); + strlcat(modified_path, update_package+6, len); + printf("(replacing path \"%s\" with \"%s\")\n", + update_package, modified_path); + update_package = modified_path; + } + else + printf("modified_path allocation failed\n"); } } printf("\n"); @@ -1028,18 +1449,57 @@ main(int argc, char **argv) { int status = INSTALL_SUCCESS; if (update_package != NULL) { - status = install_package(update_package, &should_wipe_cache, TEMPORARY_INSTALL_FILE, true); - if (status == INSTALL_SUCCESS && should_wipe_cache) { - wipe_cache(false, device); - } - if (status != INSTALL_SUCCESS) { - ui->Print("Installation aborted.\n"); - - // If this is an eng or userdebug build, then automatically - // turn the text display on if the script fails so the error - // message is visible. - if (is_ro_debuggable()) { - ui->ShowText(true); + // It's not entirely true that we will modify the flash. But we want + // to log the update attempt since update_package is non-NULL. + modified_flash = true; + + if (!is_battery_ok()) { + ui->Print("battery capacity is not enough for installing package, needed is %d%%\n", + BATTERY_OK_PERCENTAGE); + // Log the error code to last_install when installation skips due to + // low battery. + FILE* install_log = fopen_path(LAST_INSTALL_FILE, "w"); + if (install_log != nullptr) { + fprintf(install_log, "%s\n", update_package); + fprintf(install_log, "0\n"); + fprintf(install_log, "error: %d\n", kLowBattery); + fclose(install_log); + } else { + LOGE("failed to open last_install: %s\n", strerror(errno)); + } + status = INSTALL_SKIPPED; + } else { + status = install_package(update_package, &should_wipe_cache, + TEMPORARY_INSTALL_FILE, true, retry_count); + if (status == INSTALL_SUCCESS && should_wipe_cache) { + wipe_cache(false, device); + } + if (status != INSTALL_SUCCESS) { + ui->Print("Installation aborted.\n"); + // When I/O error happens, reboot and retry installation EIO_RETRY_COUNT + // times before we abandon this OTA update. + if (status == INSTALL_RETRY && retry_count < EIO_RETRY_COUNT) { + copy_logs(); + set_retry_bootloader_message(retry_count, argc, argv); + // Print retry count on screen. + ui->Print("Retry attempt %d\n", retry_count); + + // Reboot and retry the update + int ret = property_set(ANDROID_RB_PROPERTY, "reboot,recovery"); + if (ret < 0) { + ui->Print("Reboot failed\n"); + } else { + while (true) { + pause(); + } + } + } + // If this is an eng or userdebug build, then automatically + // turn the text display on if the script fails so the error + // message is visible. + if (is_ro_debuggable()) { + ui->ShowText(true); + } } } } else if (should_wipe_data) { @@ -1088,7 +1548,8 @@ main(int argc, char **argv) { } Device::BuiltinAction after = shutdown_after ? 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"common.h" #include "make_ext4fs.h" -extern "C" { #include "wipe.h" #include "cryptfs.h" -} static struct fstab *fstab = NULL; @@ -72,7 +70,8 @@ Volume* volume_for_path(const char* path) { return fs_mgr_get_entry_for_mount_point(fstab, path); } -int ensure_path_mounted(const char* path) { +// Mount the volume specified by path at the given mount_point. +int ensure_path_mounted_at(const char* path, const char* mount_point) { Volume* v = volume_for_path(path); if (v == NULL) { LOGE("unknown volume for path [%s]\n", path); @@ -90,14 +89,18 @@ int ensure_path_mounted(const char* path) { return -1; } + if (!mount_point) { + mount_point = v->mount_point; + } + const MountedVolume* mv = - find_mounted_volume_by_mount_point(v->mount_point); + find_mounted_volume_by_mount_point(mount_point); if (mv) { // volume is already mounted return 0; } - mkdir(v->mount_point, 0755); // in case it doesn't already exist + mkdir(mount_point, 0755); // in case it doesn't already exist if (strcmp(v->fs_type, "yaffs2") == 0) { // mount an MTD partition as a YAFFS2 filesystem. @@ -106,25 +109,30 @@ int ensure_path_mounted(const char* path) { partition = mtd_find_partition_by_name(v->blk_device); if (partition == NULL) { LOGE("failed to find \"%s\" partition to mount at \"%s\"\n", - v->blk_device, v->mount_point); + v->blk_device, mount_point); return -1; } - return mtd_mount_partition(partition, v->mount_point, v->fs_type, 0); + return mtd_mount_partition(partition, mount_point, v->fs_type, 0); } else if (strcmp(v->fs_type, "ext4") == 0 || strcmp(v->fs_type, "squashfs") == 0 || strcmp(v->fs_type, "vfat") == 0) { - result = mount(v->blk_device, v->mount_point, v->fs_type, + result = mount(v->blk_device, mount_point, v->fs_type, v->flags, v->fs_options); if (result == 0) return 0; - LOGE("failed to mount %s (%s)\n", v->mount_point, strerror(errno)); + LOGE("failed to mount %s (%s)\n", mount_point, strerror(errno)); return -1; } - LOGE("unknown fs_type \"%s\" for %s\n", v->fs_type, v->mount_point); + LOGE("unknown fs_type \"%s\" for %s\n", v->fs_type, mount_point); return -1; } +int ensure_path_mounted(const char* path) { + // Mount at the default mount point. + return ensure_path_mounted_at(path, nullptr); +} + int ensure_path_unmounted(const char* path) { Volume* v = volume_for_path(path); if (v == NULL) { @@ -167,7 +175,7 @@ static int exec_cmd(const char* path, char* const argv[]) { return WEXITSTATUS(status); } -int format_volume(const char* volume) { +int format_volume(const char* volume, const char* directory) { Volume* v = volume_for_path(volume); if (v == NULL) { LOGE("unknown volume \"%s\"\n", volume); @@ -233,7 +241,7 @@ int format_volume(const char* volume) { } int result; if (strcmp(v->fs_type, "ext4") == 0) { - result = make_ext4fs(v->blk_device, length, volume, sehandle); + result = make_ext4fs_directory(v->blk_device, length, volume, sehandle, directory); } else { /* Has to be f2fs because we checked earlier. */ if (v->key_loc != NULL && strcmp(v->key_loc, "footer") == 0 && length < 0) { LOGE("format_volume: crypt footer + negative length (%zd) not supported on %s\n", length, v->fs_type); @@ -265,6 +273,10 @@ int format_volume(const char* volume) { return -1; } +int format_volume(const char* volume) { + return format_volume(volume, NULL); +} + int setup_install_mounts() { if (fstab == NULL) { LOGE("can't set up install mounts: no fstab loaded\n"); @@ -19,10 +19,6 @@ #include "common.h" -#ifdef __cplusplus -extern "C" { -#endif - // Load and parse volume data from /etc/recovery.fstab. void load_volume_table(); @@ -33,7 +29,10 @@ Volume* volume_for_path(const char* path); // success (volume is mounted). int ensure_path_mounted(const char* path); -// Make sure that the volume 'path' is on is mounted. Returns 0 on +// Similar to ensure_path_mounted, but allows one to specify the mount_point. +int ensure_path_mounted_at(const char* path, const char* mount_point); + +// Make sure that the volume 'path' is on is unmounted. Returns 0 on // success (volume is unmounted); int ensure_path_unmounted(const char* path); @@ -42,12 +41,14 @@ int ensure_path_unmounted(const char* path); // it is mounted. int format_volume(const char* volume); +// Reformat the given volume (must be the mount point only, eg +// "/cache"), no paths permitted. Attempts to unmount the volume if +// it is mounted. +// Copies 'directory' to root of the newly formatted volume +int format_volume(const char* volume, const char* directory); + // Ensure that all and only the volumes that packages expect to find // mounted (/tmp and /cache) are mounted. Returns 0 on success. int setup_install_mounts(); -#ifdef __cplusplus -} -#endif - #endif // RECOVERY_ROOTS_H_ diff --git a/screen_ui.cpp b/screen_ui.cpp index ff9591514..85f789f3f 100644 --- a/screen_ui.cpp +++ b/screen_ui.cpp @@ -14,6 +14,7 @@ * limitations under the License. */ +#include <dirent.h> #include <errno.h> #include <fcntl.h> #include <linux/input.h> @@ -30,16 +31,17 @@ #include <vector> -#include "base/strings.h" -#include "cutils/properties.h" +#include <android-base/strings.h> +#include <android-base/stringprintf.h> +#include <cutils/properties.h> + #include "common.h" #include "device.h" #include "minui/minui.h" #include "screen_ui.h" #include "ui.h" -static int char_width; -static int char_height; +#define TEXT_INDENT 4 // Return the current time as a double (including fractions of a second). static double now() { @@ -50,9 +52,9 @@ static double now() { ScreenRecoveryUI::ScreenRecoveryUI() : currentIcon(NONE), - installingFrame(0), locale(nullptr), - rtl_locale(false), + intro_done(false), + current_frame(0), progressBarType(EMPTY), progressScopeStart(0), progressScopeSize(0), @@ -71,83 +73,114 @@ ScreenRecoveryUI::ScreenRecoveryUI() : menu_items(0), menu_sel(0), file_viewer_text_(nullptr), - animation_fps(20), - installing_frames(-1), + intro_frames(0), + loop_frames(0), + animation_fps(30), // TODO: there's currently no way to infer this. stage(-1), - max_stage(-1) { + max_stage(-1), + updateMutex(PTHREAD_MUTEX_INITIALIZER), + rtl_locale(false) { +} - for (int i = 0; i < 5; i++) { - backgroundIcon[i] = nullptr; +GRSurface* ScreenRecoveryUI::GetCurrentFrame() { + if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) { + return intro_done ? loopFrames[current_frame] : introFrames[current_frame]; } - pthread_mutex_init(&updateMutex, nullptr); + return error_icon; } -// Clear the screen and draw the currently selected background icon (if any). -// Should only be called with updateMutex locked. -void ScreenRecoveryUI::draw_background_locked(Icon icon) { - pagesIdentical = false; - gr_color(0, 0, 0, 255); - gr_clear(); +GRSurface* ScreenRecoveryUI::GetCurrentText() { + switch (currentIcon) { + case ERASING: return erasing_text; + case ERROR: return error_text; + case INSTALLING_UPDATE: return installing_text; + case NO_COMMAND: return no_command_text; + case NONE: abort(); + } +} - if (icon) { - GRSurface* surface = backgroundIcon[icon]; - if (icon == INSTALLING_UPDATE || icon == ERASING) { - surface = installation[installingFrame]; - } - GRSurface* text_surface = backgroundText[icon]; +int ScreenRecoveryUI::PixelsFromDp(int dp) { + return dp * density_; +} + +// Here's the intended layout: - int iconWidth = gr_get_width(surface); - int iconHeight = gr_get_height(surface); - int textWidth = gr_get_width(text_surface); - int textHeight = gr_get_height(text_surface); - int stageHeight = gr_get_height(stageMarkerEmpty); +// | regular large +// ---------+-------------------- +// | 220dp 366dp +// icon | (200dp) (200dp) +// | 68dp 68dp +// text | (14sp) (14sp) +// | 32dp 32dp +// progress | (2dp) (2dp) +// | 194dp 340dp - int sh = (max_stage >= 0) ? stageHeight : 0; +// Note that "baseline" is actually the *top* of each icon (because that's how our drawing +// routines work), so that's the more useful measurement for calling code. + +int ScreenRecoveryUI::GetAnimationBaseline() { + return GetTextBaseline() - PixelsFromDp(68) - gr_get_height(loopFrames[0]); +} + +int ScreenRecoveryUI::GetTextBaseline() { + return GetProgressBaseline() - PixelsFromDp(32) - gr_get_height(installing_text); +} - iconX = (gr_fb_width() - iconWidth) / 2; - iconY = (gr_fb_height() - (iconHeight+textHeight+40+sh)) / 2; +int ScreenRecoveryUI::GetProgressBaseline() { + return gr_fb_height() - PixelsFromDp(is_large_ ? 340 : 194) - gr_get_height(progressBarFill); +} - int textX = (gr_fb_width() - textWidth) / 2; - int textY = ((gr_fb_height() - (iconHeight+textHeight+40+sh)) / 2) + iconHeight + 40; +// Clear the screen and draw the currently selected background icon (if any). +// Should only be called with updateMutex locked. +void ScreenRecoveryUI::draw_background_locked() { + pagesIdentical = false; + gr_color(0, 0, 0, 255); + gr_clear(); - gr_blit(surface, 0, 0, iconWidth, iconHeight, iconX, iconY); - if (stageHeight > 0) { - int sw = gr_get_width(stageMarkerEmpty); + if (currentIcon != NONE) { + if (max_stage != -1) { + int stage_height = gr_get_height(stageMarkerEmpty); + int stage_width = gr_get_width(stageMarkerEmpty); int x = (gr_fb_width() - max_stage * gr_get_width(stageMarkerEmpty)) / 2; - int y = iconY + iconHeight + 20; + int y = gr_fb_height() - stage_height; for (int i = 0; i < max_stage; ++i) { - gr_blit((i < stage) ? stageMarkerFill : stageMarkerEmpty, - 0, 0, sw, stageHeight, x, y); - x += sw; + GRSurface* stage_surface = (i < stage) ? stageMarkerFill : stageMarkerEmpty; + gr_blit(stage_surface, 0, 0, stage_width, stage_height, x, y); + x += stage_width; } } + GRSurface* text_surface = GetCurrentText(); + int text_x = (gr_fb_width() - gr_get_width(text_surface)) / 2; + int text_y = GetTextBaseline(); gr_color(255, 255, 255, 255); - gr_texticon(textX, textY, text_surface); + gr_texticon(text_x, text_y, text_surface); } } -// Draw the progress bar (if any) on the screen. Does not flip pages. +// Draws the animation and progress bar (if any) on the screen. +// Does not flip pages. // Should only be called with updateMutex locked. -void ScreenRecoveryUI::draw_progress_locked() { - if (currentIcon == ERROR) return; - - if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) { - GRSurface* icon = installation[installingFrame]; - gr_blit(icon, 0, 0, gr_get_width(icon), gr_get_height(icon), iconX, iconY); +void ScreenRecoveryUI::draw_foreground_locked() { + if (currentIcon != NONE) { + GRSurface* frame = GetCurrentFrame(); + int frame_width = gr_get_width(frame); + int frame_height = gr_get_height(frame); + int frame_x = (gr_fb_width() - frame_width) / 2; + int frame_y = GetAnimationBaseline(); + gr_blit(frame, 0, 0, frame_width, frame_height, frame_x, frame_y); } if (progressBarType != EMPTY) { - int iconHeight = gr_get_height(backgroundIcon[INSTALLING_UPDATE]); int width = gr_get_width(progressBarEmpty); int height = gr_get_height(progressBarEmpty); - int dx = (gr_fb_width() - width)/2; - int dy = (3*gr_fb_height() + iconHeight - 2*height)/4; + int progress_x = (gr_fb_width() - width)/2; + int progress_y = GetProgressBaseline(); // Erase behind the progress bar (in case this was a progress-only update) gr_color(0, 0, 0, 255); - gr_fill(dx, dy, width, height); + gr_fill(progress_x, progress_y, width, height); if (progressBarType == DETERMINATE) { float p = progressScopeStart + progress * progressScopeSize; @@ -156,18 +189,20 @@ void ScreenRecoveryUI::draw_progress_locked() { if (rtl_locale) { // Fill the progress bar from right to left. if (pos > 0) { - gr_blit(progressBarFill, width-pos, 0, pos, height, dx+width-pos, dy); + gr_blit(progressBarFill, width-pos, 0, pos, height, + progress_x+width-pos, progress_y); } if (pos < width-1) { - gr_blit(progressBarEmpty, 0, 0, width-pos, height, dx, dy); + gr_blit(progressBarEmpty, 0, 0, width-pos, height, progress_x, progress_y); } } else { // Fill the progress bar from left to right. if (pos > 0) { - gr_blit(progressBarFill, 0, 0, pos, height, dx, dy); + gr_blit(progressBarFill, 0, 0, pos, height, progress_x, progress_y); } if (pos < width-1) { - gr_blit(progressBarEmpty, pos, 0, width-pos, height, dx+pos, dy); + gr_blit(progressBarEmpty, pos, 0, width-pos, height, + progress_x+pos, progress_y); } } } @@ -211,14 +246,14 @@ void ScreenRecoveryUI::DrawHorizontalRule(int* y) { *y += 4; } -void ScreenRecoveryUI::DrawTextLine(int* y, const char* line, bool bold) { - gr_text(4, *y, line, bold); - *y += char_height + 4; +void ScreenRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) { + gr_text(x, *y, line, bold); + *y += char_height_ + 4; } -void ScreenRecoveryUI::DrawTextLines(int* y, const char* const* lines) { +void ScreenRecoveryUI::DrawTextLines(int x, int* y, const char* const* lines) { for (size_t i = 0; lines != nullptr && lines[i] != nullptr; ++i) { - DrawTextLine(y, lines[i], false); + DrawTextLine(x, y, lines[i], false); } } @@ -237,8 +272,8 @@ static const char* LONG_PRESS_HELP[] = { // Should only be called with updateMutex locked. void ScreenRecoveryUI::draw_screen_locked() { if (!show_text) { - draw_background_locked(currentIcon); - draw_progress_locked(); + draw_background_locked(); + draw_foreground_locked(); } else { gr_color(0, 0, 0, 255); gr_clear(); @@ -249,14 +284,14 @@ void ScreenRecoveryUI::draw_screen_locked() { property_get("ro.bootimage.build.fingerprint", recovery_fingerprint, ""); SetColor(INFO); - DrawTextLine(&y, "Android Recovery", true); + DrawTextLine(TEXT_INDENT, &y, "Android Recovery", true); for (auto& chunk : android::base::Split(recovery_fingerprint, ":")) { - DrawTextLine(&y, chunk.c_str(), false); + DrawTextLine(TEXT_INDENT, &y, chunk.c_str(), false); } - DrawTextLines(&y, HasThreeButtons() ? REGULAR_HELP : LONG_PRESS_HELP); + DrawTextLines(TEXT_INDENT, &y, HasThreeButtons() ? REGULAR_HELP : LONG_PRESS_HELP); SetColor(HEADER); - DrawTextLines(&y, menu_headers_); + DrawTextLines(TEXT_INDENT, &y, menu_headers_); SetColor(MENU); DrawHorizontalRule(&y); @@ -265,7 +300,7 @@ void ScreenRecoveryUI::draw_screen_locked() { if (i == menu_sel) { // Draw the highlight bar. SetColor(IsLongPress() ? MENU_SEL_BG_ACTIVE : MENU_SEL_BG); - gr_fill(0, y - 2, gr_fb_width(), y + char_height + 2); + gr_fill(0, y - 2, gr_fb_width(), y + char_height_ + 2); // Bold white text for the selected item. SetColor(MENU_SEL_FG); gr_text(4, y, menu_[i], true); @@ -273,7 +308,7 @@ void ScreenRecoveryUI::draw_screen_locked() { } else { gr_text(4, y, menu_[i], false); } - y += char_height + 4; + y += char_height_ + 4; } DrawHorizontalRule(&y); } @@ -284,9 +319,9 @@ void ScreenRecoveryUI::draw_screen_locked() { SetColor(LOG); int row = (text_top_ + text_rows_ - 1) % text_rows_; size_t count = 0; - for (int ty = gr_fb_height() - char_height; + for (int ty = gr_fb_height() - char_height_; ty >= y && count < text_rows_; - ty -= char_height, ++count) { + ty -= char_height_, ++count) { gr_text(0, ty, text_[row], false); --row; if (row < 0) row = text_rows_ - 1; @@ -308,7 +343,7 @@ void ScreenRecoveryUI::update_progress_locked() { draw_screen_locked(); // Must redraw the whole screen pagesIdentical = true; } else { - draw_progress_locked(); // Draw only the progress bar and overlays + draw_foreground_locked(); // Draw only the progress bar and overlays } gr_flip(); } @@ -325,14 +360,23 @@ void ScreenRecoveryUI::ProgressThreadLoop() { double start = now(); pthread_mutex_lock(&updateMutex); - int redraw = 0; + bool redraw = false; // update the installation animation, if active // skip this if we have a text overlay (too expensive to update) - if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) && - installing_frames > 0 && !show_text) { - installingFrame = (installingFrame + 1) % installing_frames; - redraw = 1; + if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) && !show_text) { + if (!intro_done) { + if (current_frame == intro_frames - 1) { + intro_done = true; + current_frame = 0; + } else { + ++current_frame; + } + } else { + current_frame = (current_frame + 1) % loop_frames; + } + + redraw = true; } // move the progress bar forward on timed intervals, if configured @@ -343,7 +387,7 @@ void ScreenRecoveryUI::ProgressThreadLoop() { if (p > 1.0) p = 1.0; if (p > progress) { progress = p; - redraw = 1; + redraw = true; } } @@ -361,21 +405,14 @@ void ScreenRecoveryUI::ProgressThreadLoop() { void ScreenRecoveryUI::LoadBitmap(const char* filename, GRSurface** surface) { int result = res_create_display_surface(filename, surface); if (result < 0) { - LOGE("missing bitmap %s\n(Code %d)\n", filename, result); - } -} - -void ScreenRecoveryUI::LoadBitmapArray(const char* filename, int* frames, GRSurface*** surface) { - int result = res_create_multi_display_surface(filename, frames, surface); - if (result < 0) { - LOGE("missing bitmap %s\n(Code %d)\n", filename, result); + LOGE("couldn't load bitmap %s (error %d)\n", filename, result); } } void ScreenRecoveryUI::LoadLocalizedBitmap(const char* filename, GRSurface** surface) { int result = res_create_localized_alpha_surface(filename, locale, surface); if (result < 0) { - LOGE("missing bitmap %s\n(Code %d)\n", filename, result); + LOGE("couldn't load bitmap %s (error %d)\n", filename, result); } } @@ -388,12 +425,25 @@ static char** Alloc2d(size_t rows, size_t cols) { return result; } +// Choose the right background string to display during update. +void ScreenRecoveryUI::SetSystemUpdateText(bool security_update) { + if (security_update) { + LoadLocalizedBitmap("installing_security_text", &installing_text); + } else { + LoadLocalizedBitmap("installing_text", &installing_text); + } + Redraw(); +} + void ScreenRecoveryUI::Init() { gr_init(); - gr_font_size(&char_width, &char_height); - text_rows_ = gr_fb_height() / char_height; - text_cols_ = gr_fb_width() / char_width; + density_ = static_cast<float>(property_get_int32("ro.sf.lcd_density", 160)) / 160.f; + is_large_ = gr_fb_height() > PixelsFromDp(800); + + gr_font_size(&char_width_, &char_height_); + text_rows_ = gr_fb_height() / char_height_; + text_cols_ = gr_fb_width() / char_width_; text_ = Alloc2d(text_rows_, text_cols_ + 1); file_viewer_text_ = Alloc2d(text_rows_, text_cols_ + 1); @@ -402,31 +452,64 @@ void ScreenRecoveryUI::Init() { text_col_ = text_row_ = 0; text_top_ = 1; - backgroundIcon[NONE] = nullptr; - LoadBitmapArray("icon_installing", &installing_frames, &installation); - backgroundIcon[INSTALLING_UPDATE] = installing_frames ? installation[0] : nullptr; - backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE]; - LoadBitmap("icon_error", &backgroundIcon[ERROR]); - backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR]; + LoadBitmap("icon_error", &error_icon); LoadBitmap("progress_empty", &progressBarEmpty); LoadBitmap("progress_fill", &progressBarFill); + LoadBitmap("stage_empty", &stageMarkerEmpty); LoadBitmap("stage_fill", &stageMarkerFill); - LoadLocalizedBitmap("installing_text", &backgroundText[INSTALLING_UPDATE]); - LoadLocalizedBitmap("erasing_text", &backgroundText[ERASING]); - LoadLocalizedBitmap("no_command_text", &backgroundText[NO_COMMAND]); - LoadLocalizedBitmap("error_text", &backgroundText[ERROR]); + // Background text for "installing_update" could be "installing update" + // or "installing security update". It will be set after UI init according + // to commands in BCB. + installing_text = nullptr; + LoadLocalizedBitmap("erasing_text", &erasing_text); + LoadLocalizedBitmap("no_command_text", &no_command_text); + LoadLocalizedBitmap("error_text", &error_text); + + LoadAnimation(); pthread_create(&progress_thread_, nullptr, ProgressThreadStartRoutine, this); RecoveryUI::Init(); } +void ScreenRecoveryUI::LoadAnimation() { + // How many frames of intro and loop do we have? + std::unique_ptr<DIR, decltype(&closedir)> dir(opendir("/res/images"), closedir); + dirent* de; + while ((de = readdir(dir.get())) != nullptr) { + int value; + if (sscanf(de->d_name, "intro%d", &value) == 1 && intro_frames < (value + 1)) { + intro_frames = value + 1; + } else if (sscanf(de->d_name, "loop%d", &value) == 1 && loop_frames < (value + 1)) { + loop_frames = value + 1; + } + } + + // It's okay to not have an intro. + if (intro_frames == 0) intro_done = true; + // But you must have an animation. + if (loop_frames == 0) abort(); + + introFrames = new GRSurface*[intro_frames]; + for (int i = 0; i < intro_frames; ++i) { + // TODO: remember the names above, so we don't have to hard-code the number of 0s. + LoadBitmap(android::base::StringPrintf("intro%05d", i).c_str(), &introFrames[i]); + } + + loopFrames = new GRSurface*[loop_frames]; + for (int i = 0; i < loop_frames; ++i) { + LoadBitmap(android::base::StringPrintf("loop%05d", i).c_str(), &loopFrames[i]); + } +} + void ScreenRecoveryUI::SetLocale(const char* new_locale) { - if (new_locale) { - this->locale = new_locale; + this->locale = new_locale; + this->rtl_locale = false; + + if (locale) { char* lang = strdup(locale); for (char* p = lang; *p; ++p) { if (*p == '_') { @@ -435,8 +518,7 @@ void ScreenRecoveryUI::SetLocale(const char* new_locale) { } } - // A bit cheesy: keep an explicit list of supported languages - // that are RTL. + // A bit cheesy: keep an explicit list of supported RTL languages. if (strcmp(lang, "ar") == 0 || // Arabic strcmp(lang, "fa") == 0 || // Persian (Farsi) strcmp(lang, "he") == 0 || // Hebrew (new language code) @@ -445,8 +527,6 @@ void ScreenRecoveryUI::SetLocale(const char* new_locale) { rtl_locale = true; } free(lang); - } else { - new_locale = nullptr; } } @@ -506,18 +586,17 @@ void ScreenRecoveryUI::SetStage(int current, int max) { pthread_mutex_unlock(&updateMutex); } -void ScreenRecoveryUI::Print(const char *fmt, ...) { - char buf[256]; - va_list ap; - va_start(ap, fmt); - vsnprintf(buf, 256, fmt, ap); - va_end(ap); +void ScreenRecoveryUI::PrintV(const char* fmt, bool copy_to_stdout, va_list ap) { + std::string str; + android::base::StringAppendV(&str, fmt, ap); - fputs(buf, stdout); + if (copy_to_stdout) { + fputs(str.c_str(), stdout); + } pthread_mutex_lock(&updateMutex); if (text_rows_ > 0 && text_cols_ > 0) { - for (const char* ptr = buf; *ptr != '\0'; ++ptr) { + for (const char* ptr = str.c_str(); *ptr != '\0'; ++ptr) { if (*ptr == '\n' || text_col_ >= text_cols_) { text_[text_row_][text_col_] = '\0'; text_col_ = 0; @@ -532,6 +611,20 @@ void ScreenRecoveryUI::Print(const char *fmt, ...) { pthread_mutex_unlock(&updateMutex); } +void ScreenRecoveryUI::Print(const char* fmt, ...) { + va_list ap; + va_start(ap, fmt); + PrintV(fmt, true, ap); + va_end(ap); +} + +void ScreenRecoveryUI::PrintOnScreenOnly(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + PrintV(fmt, false, ap); + va_end(ap); +} + void ScreenRecoveryUI::PutChar(char ch) { pthread_mutex_lock(&updateMutex); if (ch != '\n') text_[text_row_][text_col_++] = ch; @@ -566,7 +659,7 @@ void ScreenRecoveryUI::ShowFile(FILE* fp) { bool show_prompt = false; while (true) { if (show_prompt) { - Print("--(%d%% of %d bytes)--", + PrintOnScreenOnly("--(%d%% of %d bytes)--", static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))), static_cast<int>(sb.st_size)); Redraw(); diff --git a/screen_ui.h b/screen_ui.h index ea05bf15f..4319b76ce 100644 --- a/screen_ui.h +++ b/screen_ui.h @@ -34,6 +34,7 @@ class ScreenRecoveryUI : public RecoveryUI { // overall recovery state ("background image") void SetBackground(Icon icon); + void SetSystemUpdateText(bool security_update); // progress indicator void SetProgressType(ProgressType type); @@ -49,6 +50,7 @@ class ScreenRecoveryUI : public RecoveryUI { // printing messages void Print(const char* fmt, ...) __printflike(2, 3); + void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3); void ShowFile(const char* filename); // menu display @@ -66,16 +68,28 @@ class ScreenRecoveryUI : public RecoveryUI { }; void SetColor(UIElement e); - private: + protected: Icon currentIcon; - int installingFrame; + const char* locale; - bool rtl_locale; + bool intro_done; + int current_frame; + + // The scale factor from dp to pixels. 1.0 for mdpi, 4.0 for xxxhdpi. + float density_; + // True if we should use the large layout. + bool is_large_; + + GRSurface* error_icon; + + GRSurface* erasing_text; + GRSurface* error_text; + GRSurface* installing_text; + GRSurface* no_command_text; + + GRSurface** introFrames; + GRSurface** loopFrames; - pthread_mutex_t updateMutex; - GRSurface* backgroundIcon[5]; - GRSurface* backgroundText[5]; - GRSurface** installation; GRSurface* progressBarEmpty; GRSurface* progressBarFill; GRSurface* stageMarkerEmpty; @@ -108,33 +122,49 @@ class ScreenRecoveryUI : public RecoveryUI { pthread_t progress_thread_; - int animation_fps; - int installing_frames; + // Number of intro frames and loop frames in the animation. + int intro_frames; + int loop_frames; - int iconX, iconY; + // Number of frames per sec (default: 30) for both parts of the animation. + int animation_fps; int stage, max_stage; - void draw_background_locked(Icon icon); - void draw_progress_locked(); + int char_width_; + int char_height_; + pthread_mutex_t updateMutex; + bool rtl_locale; + + void draw_background_locked(); + void draw_foreground_locked(); void draw_screen_locked(); void update_screen_locked(); void update_progress_locked(); + GRSurface* GetCurrentFrame(); + GRSurface* GetCurrentText(); + static void* ProgressThreadStartRoutine(void* data); void ProgressThreadLoop(); void ShowFile(FILE*); + void PrintV(const char*, bool, va_list); void PutChar(char); void ClearText(); - void DrawHorizontalRule(int* y); - void DrawTextLine(int* y, const char* line, bool bold); - void DrawTextLines(int* y, const char* const* lines); - + void LoadAnimation(); void LoadBitmap(const char* filename, GRSurface** surface); - void LoadBitmapArray(const char* filename, int* frames, GRSurface*** surface); void LoadLocalizedBitmap(const char* filename, GRSurface** surface); + + int PixelsFromDp(int dp); + int GetAnimationBaseline(); + int GetProgressBaseline(); + int GetTextBaseline(); + + void DrawHorizontalRule(int* y); + void DrawTextLine(int x, int* y, const char* line, bool bold); + void DrawTextLines(int x, int* y, const char* const* lines); }; #endif // RECOVERY_UI_H diff --git a/tests/Android.mk b/tests/Android.mk index 02a272a24..a66991b21 100644 --- a/tests/Android.mk +++ b/tests/Android.mk @@ -16,10 +16,54 @@ LOCAL_PATH := $(call my-dir) +# Unit tests include $(CLEAR_VARS) +LOCAL_CLANG := true +LOCAL_MODULE := recovery_unit_test LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk -LOCAL_STATIC_LIBRARIES := libverifier -LOCAL_SRC_FILES := asn1_decoder_test.cpp -LOCAL_MODULE := asn1_decoder_test -LOCAL_C_INCLUDES := $(LOCAL_PATH)/.. +LOCAL_STATIC_LIBRARIES := \ + libverifier \ + libminui + +LOCAL_SRC_FILES := unit/asn1_decoder_test.cpp +LOCAL_SRC_FILES += unit/recovery_test.cpp +LOCAL_SRC_FILES += unit/locale_test.cpp +LOCAL_C_INCLUDES := bootable/recovery +LOCAL_SHARED_LIBRARIES := liblog +include $(BUILD_NATIVE_TEST) + +# Component tests +include $(CLEAR_VARS) +LOCAL_CLANG := true +LOCAL_CFLAGS += -Wno-unused-parameter +LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk +LOCAL_MODULE := recovery_component_test +LOCAL_C_INCLUDES := bootable/recovery +LOCAL_SRC_FILES := \ + component/verifier_test.cpp \ + component/applypatch_test.cpp +LOCAL_FORCE_STATIC_EXECUTABLE := true +LOCAL_STATIC_LIBRARIES := \ + libapplypatch \ + libotafault \ + libmtdutils \ + libbase \ + libverifier \ + libcrypto_static \ + libminui \ + libminzip \ + libcutils \ + libbz \ + libz \ + libc + +testdata_out_path := $(TARGET_OUT_DATA_NATIVE_TESTS)/recovery +testdata_files := $(call find-subdir-files, testdata/*) + +GEN := $(addprefix $(testdata_out_path)/, $(testdata_files)) +$(GEN): PRIVATE_PATH := $(LOCAL_PATH) +$(GEN): PRIVATE_CUSTOM_TOOL = cp $< $@ +$(GEN): $(testdata_out_path)/% : $(LOCAL_PATH)/% + $(transform-generated-source) +LOCAL_GENERATED_SOURCES += $(GEN) include $(BUILD_NATIVE_TEST) diff --git a/tests/common/test_constants.h b/tests/common/test_constants.h new file mode 100644 index 000000000..3490f6805 --- /dev/null +++ b/tests/common/test_constants.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agree to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef _OTA_TEST_CONSTANTS_H +#define _OTA_TEST_CONSTANTS_H + +#if defined(__LP64__) +#define NATIVE_TEST_PATH "/nativetest64" +#else +#define NATIVE_TEST_PATH "/nativetest" +#endif + +#endif diff --git a/tests/component/applypatch_test.cpp b/tests/component/applypatch_test.cpp new file mode 100644 index 000000000..b44ddd17c --- /dev/null +++ b/tests/component/applypatch_test.cpp @@ -0,0 +1,392 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agree to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <fcntl.h> +#include <gtest/gtest.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <sys/statvfs.h> +#include <sys/types.h> +#include <time.h> + +#include <string> + +#include <android-base/file.h> +#include <android-base/stringprintf.h> +#include <android-base/test_utils.h> + +#include "applypatch/applypatch.h" +#include "common/test_constants.h" +#include "openssl/sha.h" +#include "print_sha1.h" + +static const std::string DATA_PATH = getenv("ANDROID_DATA"); +static const std::string TESTDATA_PATH = "/recovery/testdata"; +static const std::string WORK_FS = "/data"; + +static std::string sha1sum(const std::string& fname) { + uint8_t digest[SHA_DIGEST_LENGTH]; + std::string data; + android::base::ReadFileToString(fname, &data); + + SHA1((const uint8_t*)data.c_str(), data.size(), digest); + return print_sha1(digest); +} + +static void mangle_file(const std::string& fname) { + FILE* fh = fopen(&fname[0], "w"); + int r; + for (int i=0; i < 1024; i++) { + r = rand(); + fwrite(&r, sizeof(short), 1, fh); + } + fclose(fh); +} + +static bool file_cmp(std::string& f1, std::string& f2) { + std::string c1; + std::string c2; + android::base::ReadFileToString(f1, &c1); + android::base::ReadFileToString(f2, &c2); + return c1 == c2; +} + +static std::string from_testdata_base(const std::string fname) { + return android::base::StringPrintf("%s%s%s/%s", + &DATA_PATH[0], + &NATIVE_TEST_PATH[0], + &TESTDATA_PATH[0], + &fname[0]); +} + +class ApplyPatchTest : public ::testing::Test { + public: + static void SetUpTestCase() { + // set up files + old_file = from_testdata_base("old.file"); + new_file = from_testdata_base("new.file"); + patch_file = from_testdata_base("patch.bsdiff"); + rand_file = "/cache/applypatch_test_rand.file"; + cache_file = "/cache/saved.file"; + + // write stuff to rand_file + android::base::WriteStringToFile("hello", rand_file); + + // set up SHA constants + old_sha1 = sha1sum(old_file); + new_sha1 = sha1sum(new_file); + srand(time(NULL)); + bad_sha1_a = android::base::StringPrintf("%040x", rand()); + bad_sha1_b = android::base::StringPrintf("%040x", rand()); + + struct stat st; + stat(&new_file[0], &st); + new_size = st.st_size; + } + + static std::string old_file; + static std::string new_file; + static std::string rand_file; + static std::string cache_file; + static std::string patch_file; + + static std::string old_sha1; + static std::string new_sha1; + static std::string bad_sha1_a; + static std::string bad_sha1_b; + + static size_t new_size; +}; + +std::string ApplyPatchTest::old_file; +std::string ApplyPatchTest::new_file; + +static void cp(std::string src, std::string tgt) { + std::string cmd = android::base::StringPrintf("cp %s %s", + &src[0], + &tgt[0]); + system(&cmd[0]); +} + +static void backup_old() { + cp(ApplyPatchTest::old_file, ApplyPatchTest::cache_file); +} + +static void restore_old() { + cp(ApplyPatchTest::cache_file, ApplyPatchTest::old_file); +} + +class ApplyPatchCacheTest : public ApplyPatchTest { + public: + virtual void SetUp() { + backup_old(); + } + + virtual void TearDown() { + restore_old(); + } +}; + +class ApplyPatchFullTest : public ApplyPatchCacheTest { + public: + static void SetUpTestCase() { + ApplyPatchTest::SetUpTestCase(); + unsigned long free_kb = FreeSpaceForFile(&WORK_FS[0]); + ASSERT_GE(free_kb * 1024, new_size * 3 / 2); + output_f = new TemporaryFile(); + output_loc = std::string(output_f->path); + + struct FileContents fc; + + ASSERT_EQ(0, LoadFileContents(&rand_file[0], &fc)); + Value* patch1 = new Value(); + patch1->type = VAL_BLOB; + patch1->size = fc.data.size(); + patch1->data = static_cast<char*>(malloc(fc.data.size())); + memcpy(patch1->data, fc.data.data(), fc.data.size()); + patches.push_back(patch1); + + ASSERT_EQ(0, LoadFileContents(&patch_file[0], &fc)); + Value* patch2 = new Value(); + patch2->type = VAL_BLOB; + patch2->size = fc.st.st_size; + patch2->data = static_cast<char*>(malloc(fc.data.size())); + memcpy(patch2->data, fc.data.data(), fc.data.size()); + patches.push_back(patch2); + } + static void TearDownTestCase() { + delete output_f; + for (auto it = patches.begin(); it != patches.end(); ++it) { + free((*it)->data); + delete *it; + } + patches.clear(); + } + + static std::vector<Value*> patches; + static TemporaryFile* output_f; + static std::string output_loc; +}; + +class ApplyPatchDoubleCacheTest : public ApplyPatchFullTest { + public: + virtual void SetUp() { + ApplyPatchCacheTest::SetUp(); + cp(cache_file, "/cache/reallysaved.file"); + } + + virtual void TearDown() { + cp("/cache/reallysaved.file", cache_file); + ApplyPatchCacheTest::TearDown(); + } +}; + +std::string ApplyPatchTest::rand_file; +std::string ApplyPatchTest::patch_file; +std::string ApplyPatchTest::cache_file; +std::string ApplyPatchTest::old_sha1; +std::string ApplyPatchTest::new_sha1; +std::string ApplyPatchTest::bad_sha1_a; +std::string ApplyPatchTest::bad_sha1_b; + +size_t ApplyPatchTest::new_size; + +std::vector<Value*> ApplyPatchFullTest::patches; +TemporaryFile* ApplyPatchFullTest::output_f; +std::string ApplyPatchFullTest::output_loc; + +TEST_F(ApplyPatchTest, CheckModeSingle) { + char* s = &old_sha1[0]; + ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s)); +} + +TEST_F(ApplyPatchTest, CheckModeMultiple) { + char* argv[3] = { + &bad_sha1_a[0], + &old_sha1[0], + &bad_sha1_b[0] + }; + ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv)); +} + +TEST_F(ApplyPatchTest, CheckModeFailure) { + char* argv[2] = { + &bad_sha1_a[0], + &bad_sha1_b[0] + }; + ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedSingle) { + mangle_file(old_file); + char* s = &old_sha1[0]; + ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedMultiple) { + mangle_file(old_file); + char* argv[3] = { + &bad_sha1_a[0], + &old_sha1[0], + &bad_sha1_b[0] + }; + ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedFailure) { + mangle_file(old_file); + char* argv[2] = { + &bad_sha1_a[0], + &bad_sha1_b[0] + }; + ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheMissingSingle) { + unlink(&old_file[0]); + char* s = &old_sha1[0]; + ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheMissingMultiple) { + unlink(&old_file[0]); + char* argv[3] = { + &bad_sha1_a[0], + &old_sha1[0], + &bad_sha1_b[0] + }; + ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv)); +} + +TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) { + unlink(&old_file[0]); + char* argv[2] = { + &bad_sha1_a[0], + &bad_sha1_b[0] + }; + ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv)); +} + +TEST_F(ApplyPatchFullTest, ApplyInPlace) { + std::vector<char*> sha1s; + sha1s.push_back(&bad_sha1_a[0]); + sha1s.push_back(&old_sha1[0]); + + int ap_result = applypatch(&old_file[0], + "-", + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(old_file, new_file)); + // reapply, applypatch is idempotent so it should succeed + ap_result = applypatch(&old_file[0], + "-", + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(old_file, new_file)); +} + +TEST_F(ApplyPatchFullTest, ApplyInNewLocation) { + std::vector<char*> sha1s; + sha1s.push_back(&bad_sha1_a[0]); + sha1s.push_back(&old_sha1[0]); + int ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(output_loc, new_file)); + ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(output_loc, new_file)); +} + +TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) { + mangle_file(old_file); + std::vector<char*> sha1s; + sha1s.push_back(&bad_sha1_a[0]); + sha1s.push_back(&old_sha1[0]); + int ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(output_loc, new_file)); + ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_EQ(0, ap_result); + ASSERT_TRUE(file_cmp(output_loc, new_file)); +} + +TEST_F(ApplyPatchDoubleCacheTest, ApplyDoubleCorruptedInNewLocation) { + mangle_file(old_file); + mangle_file(cache_file); + + std::vector<char*> sha1s; + sha1s.push_back(&bad_sha1_a[0]); + sha1s.push_back(&old_sha1[0]); + int ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_NE(0, ap_result); + ASSERT_FALSE(file_cmp(output_loc, new_file)); + ap_result = applypatch(&old_file[0], + &output_loc[0], + &new_sha1[0], + new_size, + 2, + sha1s.data(), + patches.data(), + nullptr); + ASSERT_NE(0, ap_result); + ASSERT_FALSE(file_cmp(output_loc, new_file)); +} diff --git a/tests/component/verifier_test.cpp b/tests/component/verifier_test.cpp new file mode 100644 index 000000000..780ff2816 --- /dev/null +++ b/tests/component/verifier_test.cpp @@ -0,0 +1,178 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agree to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <errno.h> +#include <fcntl.h> +#include <gtest/gtest.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include <memory> +#include <string> +#include <vector> + +#include <openssl/sha.h> + +#include <android-base/stringprintf.h> + +#include "common.h" +#include "common/test_constants.h" +#include "minzip/SysUtil.h" +#include "ui.h" +#include "verifier.h" + +static const char* DATA_PATH = getenv("ANDROID_DATA"); +static const char* TESTDATA_PATH = "/recovery/testdata/"; + +RecoveryUI* ui = NULL; + +class MockUI : public RecoveryUI { + void Init() { } + void SetStage(int, int) { } + void SetLocale(const char*) { } + void SetBackground(Icon icon) { } + void SetSystemUpdateText(bool security_update) { } + + void SetProgressType(ProgressType determinate) { } + void ShowProgress(float portion, float seconds) { } + void SetProgress(float fraction) { } + + void ShowText(bool visible) { } + bool IsTextVisible() { return false; } + bool WasTextEverVisible() { return false; } + void Print(const char* fmt, ...) { + va_list ap; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + } + void PrintOnScreenOnly(const char* fmt, ...) { + va_list ap; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + } + void ShowFile(const char*) { } + + void StartMenu(const char* const * headers, const char* const * items, + int initial_selection) { } + int SelectMenu(int sel) { return 0; } + void EndMenu() { } +}; + +void +ui_print(const char* format, ...) { + va_list ap; + va_start(ap, format); + vfprintf(stdout, format, ap); + va_end(ap); +} + +class VerifierTest : public testing::TestWithParam<std::vector<std::string>> { + public: + MemMapping memmap; + std::vector<Certificate> certs; + + virtual void SetUp() { + std::vector<std::string> args = GetParam(); + std::string package = + android::base::StringPrintf("%s%s%s%s", DATA_PATH, NATIVE_TEST_PATH, + TESTDATA_PATH, args[0].c_str()); + if (sysMapFile(package.c_str(), &memmap) != 0) { + FAIL() << "Failed to mmap " << package << ": " << strerror(errno) + << "\n"; + } + + for (auto it = ++(args.cbegin()); it != args.cend(); ++it) { + if (it->substr(it->length() - 3, it->length()) == "256") { + if (certs.empty()) { + FAIL() << "May only specify -sha256 after key type\n"; + } + certs.back().hash_len = SHA256_DIGEST_LENGTH; + } else { + std::string public_key_file = android::base::StringPrintf( + "%s%s%stest_key_%s.txt", DATA_PATH, NATIVE_TEST_PATH, + TESTDATA_PATH, it->c_str()); + ASSERT_TRUE(load_keys(public_key_file.c_str(), certs)); + certs.back().hash_len = SHA_DIGEST_LENGTH; + } + } + if (certs.empty()) { + std::string public_key_file = android::base::StringPrintf( + "%s%s%stest_key_e3.txt", DATA_PATH, NATIVE_TEST_PATH, + TESTDATA_PATH); + ASSERT_TRUE(load_keys(public_key_file.c_str(), certs)); + certs.back().hash_len = SHA_DIGEST_LENGTH; + } + } + + static void SetUpTestCase() { + ui = new MockUI(); + } +}; + +class VerifierSuccessTest : public VerifierTest { +}; + +class VerifierFailureTest : public VerifierTest { +}; + +TEST_P(VerifierSuccessTest, VerifySucceed) { + ASSERT_EQ(verify_file(memmap.addr, memmap.length, certs), VERIFY_SUCCESS); +} + +TEST_P(VerifierFailureTest, VerifyFailure) { + ASSERT_EQ(verify_file(memmap.addr, memmap.length, certs), VERIFY_FAILURE); +} + +INSTANTIATE_TEST_CASE_P(SingleKeySuccess, VerifierSuccessTest, + ::testing::Values( + std::vector<std::string>({"otasigned.zip", "e3"}), + std::vector<std::string>({"otasigned_f4.zip", "f4"}), + std::vector<std::string>({"otasigned_sha256.zip", "e3", "sha256"}), + std::vector<std::string>({"otasigned_f4_sha256.zip", "f4", "sha256"}), + std::vector<std::string>({"otasigned_ecdsa_sha256.zip", "ec", "sha256"}))); + +INSTANTIATE_TEST_CASE_P(MultiKeySuccess, VerifierSuccessTest, + ::testing::Values( + std::vector<std::string>({"otasigned.zip", "f4", "e3"}), + std::vector<std::string>({"otasigned_f4.zip", "ec", "f4"}), + std::vector<std::string>({"otasigned_sha256.zip", "ec", "e3", "e3", "sha256"}), + std::vector<std::string>({"otasigned_f4_sha256.zip", "ec", "sha256", "e3", "f4", "sha256"}), + std::vector<std::string>({"otasigned_ecdsa_sha256.zip", "f4", "sha256", "e3", "ec", "sha256"}))); + +INSTANTIATE_TEST_CASE_P(WrongKey, VerifierFailureTest, + ::testing::Values( + std::vector<std::string>({"otasigned.zip", "f4"}), + std::vector<std::string>({"otasigned_f4.zip", "e3"}), + std::vector<std::string>({"otasigned_ecdsa_sha256.zip", "e3", "sha256"}))); + +INSTANTIATE_TEST_CASE_P(WrongHash, VerifierFailureTest, + ::testing::Values( + std::vector<std::string>({"otasigned.zip", "e3", "sha256"}), + std::vector<std::string>({"otasigned_f4.zip", "f4", "sha256"}), + std::vector<std::string>({"otasigned_sha256.zip"}), + std::vector<std::string>({"otasigned_f4_sha256.zip", "f4"}), + std::vector<std::string>({"otasigned_ecdsa_sha256.zip"}))); + +INSTANTIATE_TEST_CASE_P(BadPackage, VerifierFailureTest, + ::testing::Values( + std::vector<std::string>({"random.zip"}), + std::vector<std::string>({"fake-eocd.zip"}), + std::vector<std::string>({"alter-metadata.zip"}), + std::vector<std::string>({"alter-footer.zip"}))); diff --git a/testdata/alter-footer.zip b/tests/testdata/alter-footer.zip Binary files differindex f497ec000..f497ec000 100644 --- a/testdata/alter-footer.zip +++ b/tests/testdata/alter-footer.zip diff --git a/testdata/alter-metadata.zip b/tests/testdata/alter-metadata.zip Binary files differindex 1c71fbc49..1c71fbc49 100644 --- a/testdata/alter-metadata.zip +++ b/tests/testdata/alter-metadata.zip diff --git a/testdata/fake-eocd.zip b/tests/testdata/fake-eocd.zip Binary files differindex 15dc0a946..15dc0a946 100644 --- a/testdata/fake-eocd.zip +++ b/tests/testdata/fake-eocd.zip diff --git a/testdata/jarsigned.zip b/tests/testdata/jarsigned.zip Binary files differindex 8b1ef8bdd..8b1ef8bdd 100644 --- a/testdata/jarsigned.zip +++ b/tests/testdata/jarsigned.zip diff --git a/tests/testdata/new.file b/tests/testdata/new.file Binary files differnew file mode 100644 index 000000000..cdeb8fd50 --- /dev/null +++ b/tests/testdata/new.file diff --git a/tests/testdata/old.file b/tests/testdata/old.file Binary files differnew file mode 100644 index 000000000..166c8732e --- /dev/null +++ b/tests/testdata/old.file diff --git a/testdata/otasigned.zip b/tests/testdata/otasigned.zip Binary files differindex a6bc53e41..a6bc53e41 100644 --- a/testdata/otasigned.zip +++ b/tests/testdata/otasigned.zip diff --git a/testdata/otasigned_ecdsa_sha256.zip b/tests/testdata/otasigned_ecdsa_sha256.zip Binary files differindex 999fcdd0f..999fcdd0f 100644 --- a/testdata/otasigned_ecdsa_sha256.zip +++ b/tests/testdata/otasigned_ecdsa_sha256.zip diff --git a/testdata/otasigned_f4.zip b/tests/testdata/otasigned_f4.zip Binary files differindex dd1e4dd40..dd1e4dd40 100644 --- a/testdata/otasigned_f4.zip +++ b/tests/testdata/otasigned_f4.zip diff --git a/testdata/otasigned_f4_sha256.zip b/tests/testdata/otasigned_f4_sha256.zip Binary files differindex 3af408c40..3af408c40 100644 --- a/testdata/otasigned_f4_sha256.zip +++ b/tests/testdata/otasigned_f4_sha256.zip diff --git a/testdata/otasigned_sha256.zip b/tests/testdata/otasigned_sha256.zip Binary files differindex 0ed4409b3..0ed4409b3 100644 --- a/testdata/otasigned_sha256.zip +++ b/tests/testdata/otasigned_sha256.zip diff --git a/tests/testdata/patch.bsdiff b/tests/testdata/patch.bsdiff Binary files differnew file mode 100644 index 000000000..b78d38573 --- /dev/null +++ b/tests/testdata/patch.bsdiff diff --git a/testdata/random.zip b/tests/testdata/random.zip Binary files differindex 18c0b3b9f..18c0b3b9f 100644 --- a/testdata/random.zip +++ b/tests/testdata/random.zip diff --git a/testdata/test_f4.pk8 b/tests/testdata/test_f4.pk8 Binary files differindex 3052613c5..3052613c5 100644 --- a/testdata/test_f4.pk8 +++ b/tests/testdata/test_f4.pk8 diff --git a/testdata/test_f4.x509.pem b/tests/testdata/test_f4.x509.pem index 814abcf99..814abcf99 100644 --- a/testdata/test_f4.x509.pem +++ b/tests/testdata/test_f4.x509.pem diff --git a/testdata/test_f4_sha256.x509.pem b/tests/testdata/test_f4_sha256.x509.pem index 9d5376b45..9d5376b45 100644 --- a/testdata/test_f4_sha256.x509.pem +++ b/tests/testdata/test_f4_sha256.x509.pem diff --git a/tests/testdata/test_key_e3.txt b/tests/testdata/test_key_e3.txt new file mode 100644 index 000000000..53f5297bd --- /dev/null +++ b/tests/testdata/test_key_e3.txt @@ -0,0 +1 @@ +{64,0xc926ad21,{1795090719,2141396315,950055447,2581568430,4268923165,1920809988,546586521,3498997798,1776797858,3740060814,1805317999,1429410244,129622599,1422441418,1783893377,1222374759,2563319927,323993566,28517732,609753416,1826472888,215237850,4261642700,4049082591,3228462402,774857746,154822455,2497198897,2758199418,3019015328,2794777644,87251430,2534927978,120774784,571297800,3695899472,2479925187,3811625450,3401832990,2394869647,3267246207,950095497,555058928,414729973,1136544882,3044590084,465547824,4058146728,2731796054,1689838846,3890756939,1048029507,895090649,247140249,178744550,3547885223,3165179243,109881576,3944604415,1044303212,3772373029,2985150306,3737520932,3599964420},{3437017481,3784475129,2800224972,3086222688,251333580,2131931323,512774938,325948880,2657486437,2102694287,3820568226,792812816,1026422502,2053275343,2800889200,3113586810,165549746,4273519969,4065247892,1902789247,772932719,3941848426,3652744109,216871947,3164400649,1942378755,3996765851,1055777370,964047799,629391717,2232744317,3910558992,191868569,2758883837,3682816752,2997714732,2702529250,3570700455,3776873832,3924067546,3555689545,2758825434,1323144535,61311905,1997411085,376844204,213777604,4077323584,9135381,1625809335,2804742137,2952293945,1117190829,4237312782,1825108855,3013147971,1111251351,2568837572,1684324211,2520978805,367251975,810756730,2353784344,1175080310}} diff --git a/tests/testdata/test_key_ec.txt b/tests/testdata/test_key_ec.txt new file mode 100644 index 000000000..72b4395d9 --- /dev/null +++ b/tests/testdata/test_key_ec.txt @@ -0,0 +1 @@ +v5 {32,{36,250,86,214,202,22,20,147,198,120,2,28,76,190,78,23,106,35,24,96,86,22,186,69,132,93,192,232,0,213,14,103},{222,154,23,13,125,130,22,76,146,185,140,159,138,255,105,143,32,16,27,72,175,145,141,121,233,184,77,24,217,141,132,181}} diff --git a/tests/testdata/test_key_f4.txt b/tests/testdata/test_key_f4.txt new file mode 100644 index 000000000..54ddbbad1 --- /dev/null +++ b/tests/testdata/test_key_f4.txt @@ -0,0 +1 @@ +v2 {64,0xc9bd1f21,{293133087,3210546773,865313125,250921607,3158780490,943703457,1242806226,2986289859,2942743769,2457906415,2719374299,1783459420,149579627,3081531591,3440738617,2788543742,2758457512,1146764939,3699497403,2446203424,1744968926,1159130537,2370028300,3978231572,3392699980,1487782451,1180150567,2841334302,3753960204,961373345,3333628321,748825784,2978557276,1566596926,1613056060,2600292737,1847226629,50398611,1890374404,2878700735,2286201787,1401186359,619285059,731930817,2340993166,1156490245,2992241729,151498140,318782170,3480838990,2100383433,4223552555,3628927011,4247846280,1759029513,4215632601,2719154626,3490334597,1751299340,3487864726,3668753795,4217506054,3748782284,3150295088},{1772626313,445326068,3477676155,1758201194,2986784722,491035581,3922936562,702212696,2979856666,3324974564,2488428922,3056318590,1626954946,664714029,398585816,3964097931,3356701905,2298377729,2040082097,3025491477,539143308,3348777868,2995302452,3602465520,212480763,2691021393,1307177300,704008044,2031136606,1054106474,3838318865,2441343869,1477566916,700949900,2534790355,3353533667,336163563,4106790558,2701448228,1571536379,1103842411,3623110423,1635278839,1577828979,910322800,715583630,138128831,1017877531,2289162787,447994798,1897243165,4121561445,4150719842,2131821093,2262395396,3305771534,980753571,3256525190,3128121808,1072869975,3507939515,4229109952,118381341,2209831334}} diff --git a/testdata/testkey.pk8 b/tests/testdata/testkey.pk8 Binary files differindex 586c1bd5c..586c1bd5c 100644 --- a/testdata/testkey.pk8 +++ b/tests/testdata/testkey.pk8 diff --git a/testdata/testkey.x509.pem b/tests/testdata/testkey.x509.pem index e242d83e2..e242d83e2 100644 --- a/testdata/testkey.x509.pem +++ b/tests/testdata/testkey.x509.pem diff --git a/testdata/testkey_ecdsa.pk8 b/tests/testdata/testkey_ecdsa.pk8 Binary files differindex 9a521c8cf..9a521c8cf 100644 --- a/testdata/testkey_ecdsa.pk8 +++ b/tests/testdata/testkey_ecdsa.pk8 diff --git a/testdata/testkey_ecdsa.x509.pem b/tests/testdata/testkey_ecdsa.x509.pem index b12283645..b12283645 100644 --- a/testdata/testkey_ecdsa.x509.pem +++ b/tests/testdata/testkey_ecdsa.x509.pem diff --git a/testdata/testkey_sha256.x509.pem b/tests/testdata/testkey_sha256.x509.pem index 002ce8968..002ce8968 100644 --- a/testdata/testkey_sha256.x509.pem +++ b/tests/testdata/testkey_sha256.x509.pem diff --git a/testdata/unsigned.zip b/tests/testdata/unsigned.zip Binary files differindex 24e3eadac..24e3eadac 100644 --- a/testdata/unsigned.zip +++ b/tests/testdata/unsigned.zip diff --git a/tests/asn1_decoder_test.cpp b/tests/unit/asn1_decoder_test.cpp index af96d87d2..af96d87d2 100644 --- a/tests/asn1_decoder_test.cpp +++ b/tests/unit/asn1_decoder_test.cpp diff --git a/tests/unit/locale_test.cpp b/tests/unit/locale_test.cpp new file mode 100644 index 000000000..0e515f8c1 --- /dev/null +++ b/tests/unit/locale_test.cpp @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <gtest/gtest.h> + +#include "minui/minui.h" + +TEST(LocaleTest, Misc) { + EXPECT_TRUE(matches_locale("zh_CN", "zh_CN_#Hans")); + EXPECT_TRUE(matches_locale("zh", "zh_CN_#Hans")); + EXPECT_FALSE(matches_locale("zh_HK", "zh_CN_#Hans")); + EXPECT_TRUE(matches_locale("en_GB", "en_GB")); + EXPECT_TRUE(matches_locale("en", "en_GB")); + EXPECT_FALSE(matches_locale("en_GB", "en")); + EXPECT_FALSE(matches_locale("en_GB", "en_US")); +} diff --git a/tests/unit/recovery_test.cpp b/tests/unit/recovery_test.cpp new file mode 100644 index 000000000..f397f258e --- /dev/null +++ b/tests/unit/recovery_test.cpp @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <fcntl.h> +#include <string.h> +#include <sys/types.h> +#include <unistd.h> + +#include <android/log.h> +#include <gtest/gtest.h> +#include <log/logger.h> +#include <private/android_logger.h> + +static const char myFilename[] = "/data/misc/recovery/inject.txt"; +static const char myContent[] = "Hello World\nWelcome to my recovery\n"; + +// Failure is expected on systems that do not deliver either the +// recovery-persist or recovery-refresh executables. Tests also require +// a reboot sequence of test to truly verify. + +static ssize_t __pmsg_fn(log_id_t logId, char prio, const char *filename, + const char *buf, size_t len, void *arg) { + EXPECT_EQ(LOG_ID_SYSTEM, logId); + EXPECT_EQ(ANDROID_LOG_INFO, prio); + EXPECT_EQ(0, NULL == strstr(myFilename,filename)); + EXPECT_EQ(0, strcmp(myContent, buf)); + EXPECT_EQ(sizeof(myContent), len); + EXPECT_EQ(0, NULL != arg); + return len; +} + +// recovery.refresh - May fail. Requires recovery.inject, two reboots, +// then expect success after second reboot. +TEST(recovery, refresh) { + EXPECT_EQ(0, access("/system/bin/recovery-refresh", F_OK)); + + ssize_t ret = __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, "recovery/", __pmsg_fn, NULL); + if (ret == -ENOENT) { + EXPECT_LT(0, __android_log_pmsg_file_write( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, + myFilename, myContent, sizeof(myContent))); + fprintf(stderr, "injected test data, " + "requires two intervening reboots " + "to check for replication\n"); + } + EXPECT_EQ((ssize_t)sizeof(myContent), ret); +} + +// recovery.persist - Requires recovery.inject, then a reboot, then +// expect success after for this test on that boot. +TEST(recovery, persist) { + EXPECT_EQ(0, access("/system/bin/recovery-persist", F_OK)); + + ssize_t ret = __android_log_pmsg_file_read( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, "recovery/", __pmsg_fn, NULL); + if (ret == -ENOENT) { + EXPECT_LT(0, __android_log_pmsg_file_write( + LOG_ID_SYSTEM, ANDROID_LOG_INFO, + myFilename, myContent, sizeof(myContent))); + fprintf(stderr, "injected test data, " + "requires intervening reboot " + "to check for storage\n"); + } + + int fd = open(myFilename, O_RDONLY); + EXPECT_LE(0, fd); + + char buf[sizeof(myContent) + 32]; + ret = read(fd, buf, sizeof(buf)); + close(fd); + EXPECT_EQ(ret, (ssize_t)sizeof(myContent)); + EXPECT_EQ(0, strcmp(myContent, buf)); + if (fd >= 0) { + fprintf(stderr, "Removing persistent test data, " + "check if reconstructed on reboot\n"); + } + EXPECT_EQ(0, unlink(myFilename)); +} diff --git a/tools/recovery_l10n/Android.mk b/tools/recovery_l10n/Android.mk new file mode 100644 index 000000000..937abd1e1 --- /dev/null +++ b/tools/recovery_l10n/Android.mk @@ -0,0 +1,12 @@ +# Copyright 2012 Google Inc. All Rights Reserved. + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_PACKAGE_NAME := RecoveryLocalizer +LOCAL_MODULE_TAGS := optional + +LOCAL_SRC_FILES := $(call all-java-files-under, src) + +include $(BUILD_PACKAGE) diff --git a/tools/recovery_l10n/AndroidManifest.xml b/tools/recovery_l10n/AndroidManifest.xml new file mode 100644 index 000000000..8c51a4e08 --- /dev/null +++ b/tools/recovery_l10n/AndroidManifest.xml @@ -0,0 +1,18 @@ +<?xml version="1.0" encoding="utf-8"?> + +<manifest xmlns:android="http://schemas.android.com/apk/res/android" + package="com.android.recovery_l10n"> + + <application android:label="Recovery Localizer"> + <activity android:name="Main" + android:label="Recovery Localizer"> + <intent-filter> + <action android:name="android.intent.action.MAIN" /> + <category android:name="android.intent.category.LAUNCHER" /> + </intent-filter> + </activity> + </application> + +</manifest> + + diff --git a/tools/recovery_l10n/res/layout/main.xml b/tools/recovery_l10n/res/layout/main.xml new file mode 100644 index 000000000..05a16e1e4 --- /dev/null +++ b/tools/recovery_l10n/res/layout/main.xml @@ -0,0 +1,33 @@ +<?xml version="1.0" encoding="utf-8"?> +<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" + android:orientation="vertical" + android:layout_width="fill_parent" + android:layout_height="wrap_content" + > + + <Spinner android:id="@+id/which" + android:layout_width="wrap_content" + android:layout_height="wrap_content" + /> + + <Button android:id="@+id/go" + android:layout_width="wrap_content" + android:layout_height="wrap_content" + android:text="@string/go" + /> + + <TextView android:id="@+id/text" + android:layout_width="wrap_content" + android:layout_height="wrap_content" + android:fontFamily="sans-serif-medium" + android:textColor="#fff5f5f5" + android:textSize="14sp" + android:background="#ff000000" + android:maxWidth="480px" + android:gravity="center" + /> + + +</LinearLayout> + + diff --git a/tools/recovery_l10n/res/values-af/strings.xml b/tools/recovery_l10n/res/values-af/strings.xml new file mode 100644 index 000000000..b1974da20 --- /dev/null +++ b/tools/recovery_l10n/res/values-af/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installeer tans stelselopdatering"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Vee tans uit"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Geen opdrag nie"</string> + <string name="recovery_error" msgid="5748178989622716736">"Fout!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installeer tans sekuriteitopdatering"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-am/strings.xml b/tools/recovery_l10n/res/values-am/strings.xml new file mode 100644 index 000000000..75c17fbad --- /dev/null +++ b/tools/recovery_l10n/res/values-am/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"የሥርዓት ዝማኔን በመጫን ላይ…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"በመደምሰስ ላይ"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ምንም ትዕዛዝ የለም"</string> + <string name="recovery_error" msgid="5748178989622716736">"ስህተት!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"የደህንነት ዝማኔ በመጫን ላይ"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ar/strings.xml b/tools/recovery_l10n/res/values-ar/strings.xml new file mode 100644 index 000000000..601b5832b --- /dev/null +++ b/tools/recovery_l10n/res/values-ar/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"جارٍ تثبيت تحديث النظام"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"جارٍ محو البيانات"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ليس هناك أي أمر"</string> + <string name="recovery_error" msgid="5748178989622716736">"خطأ!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"جارٍ تثبيت تحديث الأمان"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-az-rAZ/strings.xml b/tools/recovery_l10n/res/values-az-rAZ/strings.xml new file mode 100644 index 000000000..c6765a9ea --- /dev/null +++ b/tools/recovery_l10n/res/values-az-rAZ/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Sistem güncəlləməsi quraşdırılır..."</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Silinir"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Əmr yoxdur"</string> + <string name="recovery_error" msgid="5748178989622716736">"Xəta!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Təhlükəsizlik güncəlləməsi yüklənir"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-b+sr+Latn/strings.xml b/tools/recovery_l10n/res/values-b+sr+Latn/strings.xml new file mode 100644 index 000000000..c2d8f2239 --- /dev/null +++ b/tools/recovery_l10n/res/values-b+sr+Latn/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Ažuriranje sistema se instalira"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Briše se"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nema komande"</string> + <string name="recovery_error" msgid="5748178989622716736">"Greška!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalira se bezbednosno ažuriranje"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-be-rBY/strings.xml b/tools/recovery_l10n/res/values-be-rBY/strings.xml new file mode 100644 index 000000000..7c0954d31 --- /dev/null +++ b/tools/recovery_l10n/res/values-be-rBY/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Усталёўка абнаўлення сістэмы"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Сціранне"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Няма каманды"</string> + <string name="recovery_error" msgid="5748178989622716736">"Памылка"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Усталёўка абнаўлення сістэмы бяспекі"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-bg/strings.xml b/tools/recovery_l10n/res/values-bg/strings.xml new file mode 100644 index 000000000..9e628a2af --- /dev/null +++ b/tools/recovery_l10n/res/values-bg/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Системната актуализация се инсталира"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Изтрива се"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Без команда"</string> + <string name="recovery_error" msgid="5748178989622716736">"Грешка!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Актуализацията на сигурносттa се инсталира"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-bn-rBD/strings.xml b/tools/recovery_l10n/res/values-bn-rBD/strings.xml new file mode 100644 index 000000000..0a481faf1 --- /dev/null +++ b/tools/recovery_l10n/res/values-bn-rBD/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"সিস্টেম আপডেট ইনস্টল করা হচ্ছে"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"মোছা হচ্ছে"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"কোনো আদেশ নেই"</string> + <string name="recovery_error" msgid="5748178989622716736">"ত্রুটি!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"নিরাপত্তার আপডেট ইনস্টল করা হচ্ছে"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-bs-rBA/strings.xml b/tools/recovery_l10n/res/values-bs-rBA/strings.xml new file mode 100644 index 000000000..412cf0276 --- /dev/null +++ b/tools/recovery_l10n/res/values-bs-rBA/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Ažuriranje sistema…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Brisanje u toku"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nema komande"</string> + <string name="recovery_error" msgid="5748178989622716736">"Greška!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instaliranje sigurnosnog ažuriranja…"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ca/strings.xml b/tools/recovery_l10n/res/values-ca/strings.xml new file mode 100644 index 000000000..3f266d2df --- /dev/null +++ b/tools/recovery_l10n/res/values-ca/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"S\'està instal·lant una actualització del sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"S\'està esborrant"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"No hi ha cap ordre"</string> + <string name="recovery_error" msgid="5748178989622716736">"S\'ha produït un error"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"S\'està instal·lant una actualització de seguretat"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-cs/strings.xml b/tools/recovery_l10n/res/values-cs/strings.xml new file mode 100644 index 000000000..eb436a810 --- /dev/null +++ b/tools/recovery_l10n/res/values-cs/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalace aktualizace systému"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Mazání"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Žádný příkaz"</string> + <string name="recovery_error" msgid="5748178989622716736">"Chyba!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalace aktualizace zabezpečení"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-da/strings.xml b/tools/recovery_l10n/res/values-da/strings.xml new file mode 100644 index 000000000..c6e64a245 --- /dev/null +++ b/tools/recovery_l10n/res/values-da/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installerer systemopdateringen"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Sletter"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ingen kommando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Fejl!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installerer sikkerhedsopdateringen"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-de/strings.xml b/tools/recovery_l10n/res/values-de/strings.xml new file mode 100644 index 000000000..6b6726a23 --- /dev/null +++ b/tools/recovery_l10n/res/values-de/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Systemupdate wird installiert"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Wird gelöscht"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Kein Befehl"</string> + <string name="recovery_error" msgid="5748178989622716736">"Fehler"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Sicherheitsupdate wird installiert"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-el/strings.xml b/tools/recovery_l10n/res/values-el/strings.xml new file mode 100644 index 000000000..4cb2da5f9 --- /dev/null +++ b/tools/recovery_l10n/res/values-el/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Εγκατάσταση ενημέρωσης συστήματος"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Διαγραφή"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Καμία εντολή"</string> + <string name="recovery_error" msgid="5748178989622716736">"Σφάλμα!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Εγκατάσταση ενημέρωσης ασφαλείας"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-en-rAU/strings.xml b/tools/recovery_l10n/res/values-en-rAU/strings.xml new file mode 100644 index 000000000..dc75c2374 --- /dev/null +++ b/tools/recovery_l10n/res/values-en-rAU/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installing system update"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Erasing"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"No command"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installing security update"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-en-rGB/strings.xml b/tools/recovery_l10n/res/values-en-rGB/strings.xml new file mode 100644 index 000000000..dc75c2374 --- /dev/null +++ b/tools/recovery_l10n/res/values-en-rGB/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installing system update"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Erasing"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"No command"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installing security update"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-en-rIN/strings.xml b/tools/recovery_l10n/res/values-en-rIN/strings.xml new file mode 100644 index 000000000..dc75c2374 --- /dev/null +++ b/tools/recovery_l10n/res/values-en-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installing system update"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Erasing"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"No command"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installing security update"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-es-rUS/strings.xml b/tools/recovery_l10n/res/values-es-rUS/strings.xml new file mode 100644 index 000000000..06b86069b --- /dev/null +++ b/tools/recovery_l10n/res/values-es-rUS/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalando actualización del sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Borrando"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ningún comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalando actualización de seguridad"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-es/strings.xml b/tools/recovery_l10n/res/values-es/strings.xml new file mode 100644 index 000000000..d8618f2f4 --- /dev/null +++ b/tools/recovery_l10n/res/values-es/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalando actualización del sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Borrando"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Sin comandos"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalando actualización de seguridad"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-et-rEE/strings.xml b/tools/recovery_l10n/res/values-et-rEE/strings.xml new file mode 100644 index 000000000..072a9ef80 --- /dev/null +++ b/tools/recovery_l10n/res/values-et-rEE/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Süsteemivärskenduse installimine"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Kustutamine"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Käsk puudub"</string> + <string name="recovery_error" msgid="5748178989622716736">"Viga!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Turvavärskenduse installimine"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-eu-rES/strings.xml b/tools/recovery_l10n/res/values-eu-rES/strings.xml new file mode 100644 index 000000000..5540469d0 --- /dev/null +++ b/tools/recovery_l10n/res/values-eu-rES/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Sistemaren eguneratzea instalatzen"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Eduki guztia ezabatzen"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ez dago agindurik"</string> + <string name="recovery_error" msgid="5748178989622716736">"Errorea"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Segurtasun-eguneratzea instalatzen"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-fa/strings.xml b/tools/recovery_l10n/res/values-fa/strings.xml new file mode 100644 index 000000000..cc390ae84 --- /dev/null +++ b/tools/recovery_l10n/res/values-fa/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"در حال نصب بهروزرسانی سیستم"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"در حال پاک کردن"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"فرمانی وجود ندارد"</string> + <string name="recovery_error" msgid="5748178989622716736">"خطا!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"در حال نصب بهروزرسانی امنیتی"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-fi/strings.xml b/tools/recovery_l10n/res/values-fi/strings.xml new file mode 100644 index 000000000..5141642c8 --- /dev/null +++ b/tools/recovery_l10n/res/values-fi/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Asennetaan järjestelmäpäivitystä"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Tyhjennetään"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ei komentoa"</string> + <string name="recovery_error" msgid="5748178989622716736">"Virhe!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Asennetaan tietoturvapäivitystä"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-fr-rCA/strings.xml b/tools/recovery_l10n/res/values-fr-rCA/strings.xml new file mode 100644 index 000000000..b2415290b --- /dev/null +++ b/tools/recovery_l10n/res/values-fr-rCA/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installation de la mise à jour du système en cours…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Suppression en cours..."</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Aucune commande"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erreur!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installation de la mise à jour de sécurité en cours..."</string> +</resources> diff --git a/tools/recovery_l10n/res/values-fr/strings.xml b/tools/recovery_l10n/res/values-fr/strings.xml new file mode 100644 index 000000000..f0472b5ac --- /dev/null +++ b/tools/recovery_l10n/res/values-fr/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installation de la mise à jour du système…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Suppression…"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Aucune commande"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erreur !"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installation de la mise à jour de sécurité…"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-gl-rES/strings.xml b/tools/recovery_l10n/res/values-gl-rES/strings.xml new file mode 100644 index 000000000..42b2016c2 --- /dev/null +++ b/tools/recovery_l10n/res/values-gl-rES/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalando actualización do sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Borrando"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Non hai ningún comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erro"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalando actualización de seguranza"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-gu-rIN/strings.xml b/tools/recovery_l10n/res/values-gu-rIN/strings.xml new file mode 100644 index 000000000..2355a0f4f --- /dev/null +++ b/tools/recovery_l10n/res/values-gu-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"સિસ્ટમ અપડેટ ઇન્સ્ટૉલ કરી રહ્યાં છે"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"કાઢી નાખી રહ્યું છે"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"કોઈ આદેશ નથી"</string> + <string name="recovery_error" msgid="5748178989622716736">"ભૂલ!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"સુરક્ષા અપડેટ ઇન્સ્ટૉલ કરી રહ્યાં છે"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-hi/strings.xml b/tools/recovery_l10n/res/values-hi/strings.xml new file mode 100644 index 000000000..de8757848 --- /dev/null +++ b/tools/recovery_l10n/res/values-hi/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"सिस्टम अपडेट इंस्टॉल किया जा रहा है"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"मिटाया जा रहा है"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"कोई आदेश नहीं"</string> + <string name="recovery_error" msgid="5748178989622716736">"त्रुटि!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"सुरक्षा अपडेट इंस्टॉल किया जा रहा है"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-hr/strings.xml b/tools/recovery_l10n/res/values-hr/strings.xml new file mode 100644 index 000000000..3b75ff115 --- /dev/null +++ b/tools/recovery_l10n/res/values-hr/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instaliranje ažuriranja sustava"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Brisanje"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nema naredbe"</string> + <string name="recovery_error" msgid="5748178989622716736">"Pogreška!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instaliranje sigurnosnog ažuriranja"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-hu/strings.xml b/tools/recovery_l10n/res/values-hu/strings.xml new file mode 100644 index 000000000..12d4d9fe7 --- /dev/null +++ b/tools/recovery_l10n/res/values-hu/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Rendszerfrissítés telepítése"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Törlés"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nincs parancs"</string> + <string name="recovery_error" msgid="5748178989622716736">"Hiba!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Biztonsági frissítés telepítése"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-hy-rAM/strings.xml b/tools/recovery_l10n/res/values-hy-rAM/strings.xml new file mode 100644 index 000000000..9d62bb763 --- /dev/null +++ b/tools/recovery_l10n/res/values-hy-rAM/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Համակարգի թարմացման տեղադրում"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Ջնջում"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Հրամանը տրված չէ"</string> + <string name="recovery_error" msgid="5748178989622716736">"Սխալ"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Անվտանգության թարմացման տեղադրում"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-in/strings.xml b/tools/recovery_l10n/res/values-in/strings.xml new file mode 100644 index 000000000..0e56e0dd9 --- /dev/null +++ b/tools/recovery_l10n/res/values-in/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Memasang pembaruan sistem"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Menghapus"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Tidak ada perintah"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Memasang pembaruan keamanan"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-is-rIS/strings.xml b/tools/recovery_l10n/res/values-is-rIS/strings.xml new file mode 100644 index 000000000..5065b6522 --- /dev/null +++ b/tools/recovery_l10n/res/values-is-rIS/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Setur upp kerfisuppfærslu"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Eyðir"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Engin skipun"</string> + <string name="recovery_error" msgid="5748178989622716736">"Villa!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Setur upp öryggisuppfærslu"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-it/strings.xml b/tools/recovery_l10n/res/values-it/strings.xml new file mode 100644 index 000000000..2c0364e60 --- /dev/null +++ b/tools/recovery_l10n/res/values-it/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installazione aggiornamento di sistema…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Cancellazione…"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nessun comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Errore!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installazione aggiornamento sicurezza…"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-iw/strings.xml b/tools/recovery_l10n/res/values-iw/strings.xml new file mode 100644 index 000000000..ea5e6f2c9 --- /dev/null +++ b/tools/recovery_l10n/res/values-iw/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"מתקין עדכון מערכת"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"מוחק"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"אין פקודה"</string> + <string name="recovery_error" msgid="5748178989622716736">"שגיאה!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"מתקין עדכון אבטחה"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ja/strings.xml b/tools/recovery_l10n/res/values-ja/strings.xml new file mode 100644 index 000000000..36e029b0f --- /dev/null +++ b/tools/recovery_l10n/res/values-ja/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"システム アップデートをインストールしています"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"消去しています"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"コマンドが指定されていません"</string> + <string name="recovery_error" msgid="5748178989622716736">"エラーが発生しました。"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"セキュリティ アップデートをインストールしています"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ka-rGE/strings.xml b/tools/recovery_l10n/res/values-ka-rGE/strings.xml new file mode 100644 index 000000000..6a46b3677 --- /dev/null +++ b/tools/recovery_l10n/res/values-ka-rGE/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"მიმდინარეობს სისტემის განახლების ინსტალაცია"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"მიმდინარეობს ამოშლა"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ბრძანება არ არის"</string> + <string name="recovery_error" msgid="5748178989622716736">"წარმოიქმნა შეცდომა!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"მიმდინარეობს უსაფრთხოების განახლების ინსტალაცია"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-kk-rKZ/strings.xml b/tools/recovery_l10n/res/values-kk-rKZ/strings.xml new file mode 100644 index 000000000..a4bd86e66 --- /dev/null +++ b/tools/recovery_l10n/res/values-kk-rKZ/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Жүйе жаңартуы орнатылуда"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Өшірілуде"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Пәрмен жоқ"</string> + <string name="recovery_error" msgid="5748178989622716736">"Қате!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Қауіпсіздік жаңартуы орнатылуда"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-km-rKH/strings.xml b/tools/recovery_l10n/res/values-km-rKH/strings.xml new file mode 100644 index 000000000..313c0f457 --- /dev/null +++ b/tools/recovery_l10n/res/values-km-rKH/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"កំពុងអាប់ដេតប្រព័ន្ធ"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"លុប"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"គ្មានពាក្យបញ្ជាទេ"</string> + <string name="recovery_error" msgid="5748178989622716736">"កំហុស!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"កំពុងដំឡើងការអាប់ដេតសុវត្ថិភាព"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-kn-rIN/strings.xml b/tools/recovery_l10n/res/values-kn-rIN/strings.xml new file mode 100644 index 000000000..5bf6260ee --- /dev/null +++ b/tools/recovery_l10n/res/values-kn-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"ಸಿಸ್ಟಂ ಅಪ್ಡೇಟ್ ಸ್ಥಾಪಿಸಲಾಗುತ್ತಿದೆ"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"ಅಳಿಸಲಾಗುತ್ತಿದೆ"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ಯಾವುದೇ ಆದೇಶವಿಲ್ಲ"</string> + <string name="recovery_error" msgid="5748178989622716736">"ದೋಷ!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"ಭದ್ರತೆಯ ಅಪ್ಡೇಟ್ ಸ್ಥಾಪಿಸಲಾಗುತ್ತಿದೆ"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ko/strings.xml b/tools/recovery_l10n/res/values-ko/strings.xml new file mode 100644 index 000000000..aca13bbe7 --- /dev/null +++ b/tools/recovery_l10n/res/values-ko/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"시스템 업데이트 설치"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"지우는 중"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"명령어 없음"</string> + <string name="recovery_error" msgid="5748178989622716736">"오류!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"보안 업데이트 설치 중"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ky-rKG/strings.xml b/tools/recovery_l10n/res/values-ky-rKG/strings.xml new file mode 100644 index 000000000..0a6bd783a --- /dev/null +++ b/tools/recovery_l10n/res/values-ky-rKG/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Тутум жаңыртуусу орнотулууда"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Тазаланууда"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Буйрук берилген жок"</string> + <string name="recovery_error" msgid="5748178989622716736">"Ката!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Коопсуздук жаңыртуусу орнотулууда"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-lo-rLA/strings.xml b/tools/recovery_l10n/res/values-lo-rLA/strings.xml new file mode 100644 index 000000000..d3dbb3970 --- /dev/null +++ b/tools/recovery_l10n/res/values-lo-rLA/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"ກຳລັງຕິດຕັ້ງການອັບເດດລະບົບ"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"ກຳລັງລຶບ"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ບໍ່ມີຄຳສັ່ງ"</string> + <string name="recovery_error" msgid="5748178989622716736">"ຜິດພາດ!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"ກຳລັງຕິດຕັ້ງອັບເດດຄວາມປອດໄພ"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-lt/strings.xml b/tools/recovery_l10n/res/values-lt/strings.xml new file mode 100644 index 000000000..d5d5e88fd --- /dev/null +++ b/tools/recovery_l10n/res/values-lt/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Diegiamas sistemos naujinys"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Ištrinama"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nėra jokių komandų"</string> + <string name="recovery_error" msgid="5748178989622716736">"Klaida!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Diegiamas saugos naujinys"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-lv/strings.xml b/tools/recovery_l10n/res/values-lv/strings.xml new file mode 100644 index 000000000..d877f6a61 --- /dev/null +++ b/tools/recovery_l10n/res/values-lv/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Notiek sistēmas atjauninājuma instalēšana"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Notiek dzēšana"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nav nevienas komandas"</string> + <string name="recovery_error" msgid="5748178989622716736">"Kļūda!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Notiek drošības atjauninājuma instalēšana"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-mk-rMK/strings.xml b/tools/recovery_l10n/res/values-mk-rMK/strings.xml new file mode 100644 index 000000000..351459730 --- /dev/null +++ b/tools/recovery_l10n/res/values-mk-rMK/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Се инсталира ажурирање на системот"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Се брише"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Нема наредба"</string> + <string name="recovery_error" msgid="5748178989622716736">"Грешка!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Се инсталира безбедносно ажурирање"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ml-rIN/strings.xml b/tools/recovery_l10n/res/values-ml-rIN/strings.xml new file mode 100644 index 000000000..b506e2530 --- /dev/null +++ b/tools/recovery_l10n/res/values-ml-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"സിസ്റ്റം അപ്ഡേറ്റ് ഇൻസ്റ്റാൾ ചെയ്യുന്നു"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"മായ്ക്കുന്നു"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"കമാൻഡ് ഒന്നുമില്ല"</string> + <string name="recovery_error" msgid="5748178989622716736">"പിശക്!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"സുരക്ഷാ അപ്ഡേറ്റ് ഇൻസ്റ്റാൾ ചെയ്യുന്നു"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-mn-rMN/strings.xml b/tools/recovery_l10n/res/values-mn-rMN/strings.xml new file mode 100644 index 000000000..e3dd2e90e --- /dev/null +++ b/tools/recovery_l10n/res/values-mn-rMN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Системийн шинэчлэлтийг суулгаж байна"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Устгаж байна"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Тушаал байхгүй"</string> + <string name="recovery_error" msgid="5748178989622716736">"Алдаа!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Аюулгүй байдлын шинэчлэлтийг суулгаж байна"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-mr-rIN/strings.xml b/tools/recovery_l10n/res/values-mr-rIN/strings.xml new file mode 100644 index 000000000..8cf86f773 --- /dev/null +++ b/tools/recovery_l10n/res/values-mr-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"सिस्टम अद्यतन स्थापित करीत आहे"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"मिटवत आहे"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"कोणताही आदेश नाही"</string> + <string name="recovery_error" msgid="5748178989622716736">"त्रुटी!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"सुरक्षा अद्यतन स्थापित करीत आहे"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ms-rMY/strings.xml b/tools/recovery_l10n/res/values-ms-rMY/strings.xml new file mode 100644 index 000000000..0e24ac4e1 --- /dev/null +++ b/tools/recovery_l10n/res/values-ms-rMY/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Memasang kemas kini sistem"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Memadam"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Tiada perintah"</string> + <string name="recovery_error" msgid="5748178989622716736">"Ralat!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Memasang kemas kini keselamatan"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-my-rMM/strings.xml b/tools/recovery_l10n/res/values-my-rMM/strings.xml new file mode 100644 index 000000000..f13752461 --- /dev/null +++ b/tools/recovery_l10n/res/values-my-rMM/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"စနစ်အပ်ဒိတ်ကို ထည့်သွင်းနေသည်"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"ဖျက်နေသည်"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ညွှန်ကြားချက်မပေးထားပါ"</string> + <string name="recovery_error" msgid="5748178989622716736">"မှားနေပါသည်!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"လုံခြုံရေး အပ်ဒိတ်ကို ထည့်သွင်းနေသည်"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-nb/strings.xml b/tools/recovery_l10n/res/values-nb/strings.xml new file mode 100644 index 000000000..ad6f20e46 --- /dev/null +++ b/tools/recovery_l10n/res/values-nb/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Installerer systemoppdateringen"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Tømmer"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ingen kommandoer"</string> + <string name="recovery_error" msgid="5748178989622716736">"Feil!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Installerer sikkerhetsoppdateringen"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ne-rNP/strings.xml b/tools/recovery_l10n/res/values-ne-rNP/strings.xml new file mode 100644 index 000000000..1880e807b --- /dev/null +++ b/tools/recovery_l10n/res/values-ne-rNP/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"प्रणालीको अद्यावधिकलाई स्थापना गर्दै"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"मेटाउँदै"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"कुनै आदेश छैन"</string> + <string name="recovery_error" msgid="5748178989622716736">"त्रुटि!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"सुरक्षा सम्बन्धी अद्यावधिकलाई स्थापना गर्दै"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-nl/strings.xml b/tools/recovery_l10n/res/values-nl/strings.xml new file mode 100644 index 000000000..0d6c15abb --- /dev/null +++ b/tools/recovery_l10n/res/values-nl/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Systeemupdate installeren"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Wissen"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Geen opdracht"</string> + <string name="recovery_error" msgid="5748178989622716736">"Fout!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Beveiligingsupdate installeren"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-pa-rIN/strings.xml b/tools/recovery_l10n/res/values-pa-rIN/strings.xml new file mode 100644 index 000000000..8564c9c36 --- /dev/null +++ b/tools/recovery_l10n/res/values-pa-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"ਸਿਸਟਮ ਅੱਪਡੇਟ ਸਥਾਪਤ ਕੀਤੀ ਜਾ ਰਹੀ ਹੈ"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"ਮਿਟਾਈ ਜਾ ਰਹੀ ਹੈ"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ਕੋਈ ਕਮਾਂਡ ਨਹੀਂ"</string> + <string name="recovery_error" msgid="5748178989622716736">"ਅਸ਼ੁੱਧੀ!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"ਸੁਰੱਖਿਆ ਅੱਪਡੇਟ ਸਥਾਪਤ ਕੀਤੀ ਜਾ ਰਹੀ ਹੈ"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-pl/strings.xml b/tools/recovery_l10n/res/values-pl/strings.xml new file mode 100644 index 000000000..8d6db388d --- /dev/null +++ b/tools/recovery_l10n/res/values-pl/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instaluję aktualizację systemu"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Kasuję"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Brak polecenia"</string> + <string name="recovery_error" msgid="5748178989622716736">"Błąd"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instaluję aktualizację zabezpieczeń"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-pt-rBR/strings.xml b/tools/recovery_l10n/res/values-pt-rBR/strings.xml new file mode 100644 index 000000000..b72704385 --- /dev/null +++ b/tools/recovery_l10n/res/values-pt-rBR/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalando atualização do sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Apagando"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nenhum comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erro!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalando atualização de segurança"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-pt-rPT/strings.xml b/tools/recovery_l10n/res/values-pt-rPT/strings.xml new file mode 100644 index 000000000..981463739 --- /dev/null +++ b/tools/recovery_l10n/res/values-pt-rPT/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"A instalar atualização do sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"A apagar"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nenhum comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erro!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"A instalar atualização de segurança"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-pt/strings.xml b/tools/recovery_l10n/res/values-pt/strings.xml new file mode 100644 index 000000000..b72704385 --- /dev/null +++ b/tools/recovery_l10n/res/values-pt/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Instalando atualização do sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Apagando"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nenhum comando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Erro!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Instalando atualização de segurança"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ro/strings.xml b/tools/recovery_l10n/res/values-ro/strings.xml new file mode 100644 index 000000000..8032865b8 --- /dev/null +++ b/tools/recovery_l10n/res/values-ro/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Se instalează actualizarea de sistem"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Se șterge"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nicio comandă"</string> + <string name="recovery_error" msgid="5748178989622716736">"Eroare!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Se instalează actualizarea de securitate"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ru/strings.xml b/tools/recovery_l10n/res/values-ru/strings.xml new file mode 100644 index 000000000..feebecf31 --- /dev/null +++ b/tools/recovery_l10n/res/values-ru/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Установка обновления системы…"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Удаление…"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Команды нет"</string> + <string name="recovery_error" msgid="5748178989622716736">"Ошибка"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Установка обновления системы безопасности…"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-si-rLK/strings.xml b/tools/recovery_l10n/res/values-si-rLK/strings.xml new file mode 100644 index 000000000..456cdc567 --- /dev/null +++ b/tools/recovery_l10n/res/values-si-rLK/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"පද්ධති යාවත්කාලීනය ස්ථාපනය කරමින්"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"මකමින්"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"විධානයක් නොමැත"</string> + <string name="recovery_error" msgid="5748178989622716736">"දෝෂය!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"ආරක්ෂක යාවත්කාලීනය ස්ථාපනය කරමින්"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sk/strings.xml b/tools/recovery_l10n/res/values-sk/strings.xml new file mode 100644 index 000000000..b15f3802b --- /dev/null +++ b/tools/recovery_l10n/res/values-sk/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Inštaluje sa aktualizácia systému"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Prebieha vymazávanie"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Žiadny príkaz"</string> + <string name="recovery_error" msgid="5748178989622716736">"Chyba!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Inštaluje sa bezpečnostná aktualizácia"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sl/strings.xml b/tools/recovery_l10n/res/values-sl/strings.xml new file mode 100644 index 000000000..d608b7506 --- /dev/null +++ b/tools/recovery_l10n/res/values-sl/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Nameščanje posodobitve sistema"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Brisanje"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Ni ukaza"</string> + <string name="recovery_error" msgid="5748178989622716736">"Napaka"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Nameščanje varnostne posodobitve"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sq-rAL/strings.xml b/tools/recovery_l10n/res/values-sq-rAL/strings.xml new file mode 100644 index 000000000..1156931fb --- /dev/null +++ b/tools/recovery_l10n/res/values-sq-rAL/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Po instalon përditësimin e sistemit"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Po spastron"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Nuk ka komanda"</string> + <string name="recovery_error" msgid="5748178989622716736">"Gabim!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Po instalon përditësimin e sigurisë"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sr/strings.xml b/tools/recovery_l10n/res/values-sr/strings.xml new file mode 100644 index 000000000..a593d8faa --- /dev/null +++ b/tools/recovery_l10n/res/values-sr/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Ажурирање система се инсталира"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Брише се"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Нема команде"</string> + <string name="recovery_error" msgid="5748178989622716736">"Грешка!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Инсталира се безбедносно ажурирање"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sv/strings.xml b/tools/recovery_l10n/res/values-sv/strings.xml new file mode 100644 index 000000000..b33ce253f --- /dev/null +++ b/tools/recovery_l10n/res/values-sv/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Systemuppdatering installeras"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Rensar"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Inget kommando"</string> + <string name="recovery_error" msgid="5748178989622716736">"Fel!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Säkerhetsuppdatering installeras"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-sw/strings.xml b/tools/recovery_l10n/res/values-sw/strings.xml new file mode 100644 index 000000000..156765881 --- /dev/null +++ b/tools/recovery_l10n/res/values-sw/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Inasakinisha sasisho la mfumo"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Inafuta"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Hakuna amri"</string> + <string name="recovery_error" msgid="5748178989622716736">"Hitilafu fulani imetokea!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Inasakinisha sasisho la usalama"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ta-rIN/strings.xml b/tools/recovery_l10n/res/values-ta-rIN/strings.xml new file mode 100644 index 000000000..d49186d8d --- /dev/null +++ b/tools/recovery_l10n/res/values-ta-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"முறைமைப் புதுப்பிப்பை நிறுவுகிறது"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"அழிக்கிறது"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"கட்டளை இல்லை"</string> + <string name="recovery_error" msgid="5748178989622716736">"பிழை!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"பாதுகாப்புப் புதுப்பிப்பை நிறுவுகிறது"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-te-rIN/strings.xml b/tools/recovery_l10n/res/values-te-rIN/strings.xml new file mode 100644 index 000000000..cfb02c915 --- /dev/null +++ b/tools/recovery_l10n/res/values-te-rIN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"సిస్టమ్ నవీకరణను ఇన్స్టాల్ చేస్తోంది"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"డేటాను తొలగిస్తోంది"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ఆదేశం లేదు"</string> + <string name="recovery_error" msgid="5748178989622716736">"లోపం సంభవించింది!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"భద్రతా నవీకరణను ఇన్స్టాల్ చేస్తోంది"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-th/strings.xml b/tools/recovery_l10n/res/values-th/strings.xml new file mode 100644 index 000000000..155affea0 --- /dev/null +++ b/tools/recovery_l10n/res/values-th/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"กำลังติดตั้งการอัปเดตระบบ"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"กำลังลบ"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"ไม่มีคำสั่ง"</string> + <string name="recovery_error" msgid="5748178989622716736">"ข้อผิดพลาด!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"กำลังติดตั้งการอัปเดตความปลอดภัย"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-tl/strings.xml b/tools/recovery_l10n/res/values-tl/strings.xml new file mode 100644 index 000000000..555b42b8d --- /dev/null +++ b/tools/recovery_l10n/res/values-tl/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Nag-i-install ng pag-update ng system"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Binubura"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Walang command"</string> + <string name="recovery_error" msgid="5748178989622716736">"Error!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Nag-i-install ng update sa seguridad"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-tr/strings.xml b/tools/recovery_l10n/res/values-tr/strings.xml new file mode 100644 index 000000000..5387cb2ae --- /dev/null +++ b/tools/recovery_l10n/res/values-tr/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Sistem güncellemesi yükleniyor"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Siliniyor"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Komut yok"</string> + <string name="recovery_error" msgid="5748178989622716736">"Hata!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Güvenlik güncellemesi yükleniyor"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-uk/strings.xml b/tools/recovery_l10n/res/values-uk/strings.xml new file mode 100644 index 000000000..0c2fa164a --- /dev/null +++ b/tools/recovery_l10n/res/values-uk/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Установлюється оновлення системи"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Стирання"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Немає команди"</string> + <string name="recovery_error" msgid="5748178989622716736">"Помилка!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Установлюється оновлення системи безпеки"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-ur-rPK/strings.xml b/tools/recovery_l10n/res/values-ur-rPK/strings.xml new file mode 100644 index 000000000..12e32fbc1 --- /dev/null +++ b/tools/recovery_l10n/res/values-ur-rPK/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"سسٹم اپ ڈیٹ انسٹال ہو رہی ہے"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"صاف ہو رہا ہے"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"کوئی کمانڈ نہیں ہے"</string> + <string name="recovery_error" msgid="5748178989622716736">"خرابی!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"سیکیورٹی اپ ڈیٹ انسٹال ہو رہی ہے"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-uz-rUZ/strings.xml b/tools/recovery_l10n/res/values-uz-rUZ/strings.xml new file mode 100644 index 000000000..2c309d646 --- /dev/null +++ b/tools/recovery_l10n/res/values-uz-rUZ/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Tizim yangilanishi o‘rnatilmoqda"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Tozalanmoqda…"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Buyruq yo‘q"</string> + <string name="recovery_error" msgid="5748178989622716736">"Xato!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Xavfsizlik yangilanishi o‘rnatilmoqda"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-vi/strings.xml b/tools/recovery_l10n/res/values-vi/strings.xml new file mode 100644 index 000000000..c77d0c8c2 --- /dev/null +++ b/tools/recovery_l10n/res/values-vi/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Đang cài đặt bản cập nhật hệ thống"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Đang xóa"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Không có lệnh nào"</string> + <string name="recovery_error" msgid="5748178989622716736">"Lỗi!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Đang cài đặt bản cập nhật bảo mật"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-zh-rCN/strings.xml b/tools/recovery_l10n/res/values-zh-rCN/strings.xml new file mode 100644 index 000000000..e06149791 --- /dev/null +++ b/tools/recovery_l10n/res/values-zh-rCN/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"正在安装系统更新"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"正在清空"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"无命令"</string> + <string name="recovery_error" msgid="5748178989622716736">"出错了！"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"正在安装安全更新"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-zh-rHK/strings.xml b/tools/recovery_l10n/res/values-zh-rHK/strings.xml new file mode 100644 index 000000000..ec3315d32 --- /dev/null +++ b/tools/recovery_l10n/res/values-zh-rHK/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"正在安裝系統更新"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"正在清除"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"沒有指令"</string> + <string name="recovery_error" msgid="5748178989622716736">"錯誤！"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"正在安裝安全性更新"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-zh-rTW/strings.xml b/tools/recovery_l10n/res/values-zh-rTW/strings.xml new file mode 100644 index 000000000..78eae2429 --- /dev/null +++ b/tools/recovery_l10n/res/values-zh-rTW/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"正在安裝系統更新"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"清除中"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"沒有指令"</string> + <string name="recovery_error" msgid="5748178989622716736">"錯誤！"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"正在安裝安全性更新"</string> +</resources> diff --git a/tools/recovery_l10n/res/values-zu/strings.xml b/tools/recovery_l10n/res/values-zu/strings.xml new file mode 100644 index 000000000..6b815e1ab --- /dev/null +++ b/tools/recovery_l10n/res/values-zu/strings.xml @@ -0,0 +1,9 @@ +<?xml version="1.0" encoding="UTF-8"?> +<resources xmlns:android="http://schemas.android.com/apk/res/android" + xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> + <string name="recovery_installing" msgid="2013591905463558223">"Ifaka isibuyekezo sesistimu"</string> + <string name="recovery_erasing" msgid="7334826894904037088">"Iyasula"</string> + <string name="recovery_no_command" msgid="4465476568623024327">"Awukho umyalo"</string> + <string name="recovery_error" msgid="5748178989622716736">"Iphutha!"</string> + <string name="recovery_installing_security" msgid="9184031299717114342">"Ifaka isibuyekezo sokuphepha"</string> +</resources> diff --git a/tools/recovery_l10n/res/values/strings.xml b/tools/recovery_l10n/res/values/strings.xml new file mode 100644 index 000000000..971e038d3 --- /dev/null +++ b/tools/recovery_l10n/res/values/strings.xml @@ -0,0 +1,38 @@ +<?xml version="1.0" encoding="utf-8"?> +<resources> + <!-- Do not translate. --> + <string translatable="false" name="go">Go</string> + + <!-- Do not translate. --> + <string-array translatable="false" name="string_options"> + <item>installing</item> + <item>erasing</item> + <item>no_command</item> + <item>error</item> + </string-array> + + <!-- Displayed on the screen beneath the animated android while the + system is installing an update. [CHAR LIMIT=60] --> + <string name="recovery_installing">Installing system update</string> + + <!-- Displayed on the screen beneath the animated android while the + system is erasing a partition (either a data wipe aka "factory + reset", or a cache wipe). [CHAR LIMIT=60] --> + <string name="recovery_erasing">Erasing</string> + + <!-- Displayed on the screen when the user has gotten into recovery + mode without a command to run. Will not normally happen, but + users (especially developers) may boot into recovery mode + manually via special key combinations. [CHAR LIMIT=60] --> + <string name="recovery_no_command">No command</string> + + <!-- Displayed on the triangle-! screen when a system update + installation or data wipe procedure encounters an error. [CHAR + LIMIT=60] --> + <string name="recovery_error">Error!</string> + + <!-- Displayed on the screen beneath the animation while the + system is installing a security update. [CHAR LIMIT=60] --> + <string name="recovery_installing_security">Installing security update</string> + +</resources> diff --git a/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java b/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java new file mode 100644 index 000000000..817a3ad7d --- /dev/null +++ b/tools/recovery_l10n/src/com/android/recovery_l10n/Main.java @@ -0,0 +1,316 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.recovery_l10n; + +import android.app.Activity; +import android.content.Context; +import android.content.Intent; +import android.content.res.AssetManager; +import android.content.res.Configuration; +import android.content.res.Resources; +import android.graphics.Bitmap; +import android.os.Bundle; +import android.os.RemoteException; +import android.util.DisplayMetrics; +import android.util.Log; +import android.view.View; +import android.widget.Button; +import android.widget.TextView; +import android.widget.Spinner; +import android.widget.ArrayAdapter; +import android.widget.AdapterView; + +import java.io.FileOutputStream; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.HashMap; +import java.util.Locale; + +/** + * This activity assists in generating the specially-formatted bitmaps + * of text needed for recovery's localized text display. Each image + * contains all the translations of a single string; above each + * translation is a "header row" that encodes that subimage's width, + * height, and locale using pixel values. + * + * To use this app to generate new translations: + * + * - Update the string resources in res/values-* + * + * - Build and run the app. Select the string you want to + * translate, and press the "Go" button. + * + * - Wait for it to finish cycling through all the strings, then + * pull /data/data/com.android.recovery_l10n/files/text-out.png + * from the device. + * + * - "pngcrush -c 0 text-out.png output.png" + * + * - Put output.png in bootable/recovery/res/images/ (renamed + * appropriately). + * + * Recovery expects 8-bit 1-channel images (white text on black + * background). pngcrush -c 0 will convert the output of this program + * to such an image. If you use any other image handling tools, + * remember that they must be lossless to preserve the exact values of + * pixels in the header rows; don't convert them to jpeg or anything. + */ + +public class Main extends Activity { + private static final String TAG = "RecoveryL10N"; + + HashMap<Locale, Bitmap> savedBitmaps; + TextView mText; + int mStringId = R.string.recovery_installing; + + public class TextCapture implements Runnable { + private Locale nextLocale; + private Locale thisLocale; + private Runnable next; + + TextCapture(Locale thisLocale, Locale nextLocale, Runnable next) { + this.nextLocale = nextLocale; + this.thisLocale = thisLocale; + this.next = next; + } + + public void run() { + Bitmap b = mText.getDrawingCache(); + savedBitmaps.put(thisLocale, b.copy(Bitmap.Config.ARGB_8888, false)); + + if (nextLocale != null) { + switchTo(nextLocale); + } + + if (next != null) { + mText.postDelayed(next, 200); + } + } + } + + private void switchTo(Locale locale) { + Resources standardResources = getResources(); + AssetManager assets = standardResources.getAssets(); + DisplayMetrics metrics = standardResources.getDisplayMetrics(); + Configuration config = new Configuration(standardResources.getConfiguration()); + config.locale = locale; + Resources defaultResources = new Resources(assets, metrics, config); + + mText.setText(mStringId); + + mText.setDrawingCacheEnabled(false); + mText.setDrawingCacheEnabled(true); + mText.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH); + } + + @Override + public void onCreate(Bundle savedInstance) { + super.onCreate(savedInstance); + setContentView(R.layout.main); + + savedBitmaps = new HashMap<Locale, Bitmap>(); + + Spinner spinner = (Spinner) findViewById(R.id.which); + ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( + this, R.array.string_options, android.R.layout.simple_spinner_item); + adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); + spinner.setAdapter(adapter); + spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { + @Override + public void onItemSelected(AdapterView parent, View view, + int pos, long id) { + switch (pos) { + case 0: mStringId = R.string.recovery_installing; break; + case 1: mStringId = R.string.recovery_erasing; break; + case 2: mStringId = R.string.recovery_no_command; break; + case 3: mStringId = R.string.recovery_error; break; + } + } + @Override public void onNothingSelected(AdapterView parent) { } + }); + + mText = (TextView) findViewById(R.id.text); + + String[] localeNames = getAssets().getLocales(); + Arrays.sort(localeNames); + ArrayList<Locale> locales = new ArrayList<Locale>(); + for (String localeName : localeNames) { + Log.i(TAG, "locale = " + localeName); + locales.add(Locale.forLanguageTag(localeName)); + } + + final Runnable seq = buildSequence(locales.toArray(new Locale[0])); + + Button b = (Button) findViewById(R.id.go); + b.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View ignore) { + mText.post(seq); + } + }); + } + + private Runnable buildSequence(final Locale[] locales) { + Runnable head = new Runnable() { public void run() { mergeBitmaps(locales); } }; + Locale prev = null; + for (Locale loc : locales) { + head = new TextCapture(loc, prev, head); + prev = loc; + } + final Runnable fhead = head; + final Locale floc = prev; + return new Runnable() { public void run() { startSequence(fhead, floc); } }; + } + + private void startSequence(Runnable firstRun, Locale firstLocale) { + savedBitmaps.clear(); + switchTo(firstLocale); + mText.postDelayed(firstRun, 200); + } + + private void saveBitmap(Bitmap b, String filename) { + try { + FileOutputStream fos = openFileOutput(filename, 0); + b.compress(Bitmap.CompressFormat.PNG, 100, fos); + fos.close(); + } catch (IOException e) { + Log.i(TAG, "failed to write PNG", e); + } + } + + private int colorFor(byte b) { + return 0xff000000 | (b<<16) | (b<<8) | b; + } + + private int colorFor(int b) { + return 0xff000000 | (b<<16) | (b<<8) | b; + } + + private void mergeBitmaps(final Locale[] locales) { + HashMap<String, Integer> countByLanguage = new HashMap<String, Integer>(); + + int height = 2; + int width = 10; + int maxHeight = 0; + for (Locale loc : locales) { + Bitmap b = savedBitmaps.get(loc); + int h = b.getHeight(); + int w = b.getWidth(); + height += h+1; + if (h > maxHeight) maxHeight = h; + if (w > width) width = w; + + String lang = loc.getLanguage(); + if (countByLanguage.containsKey(lang)) { + countByLanguage.put(lang, countByLanguage.get(lang)+1); + } else { + countByLanguage.put(lang, 1); + } + } + + Log.i(TAG, "output bitmap is " + width + " x " + height); + Bitmap out = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); + out.eraseColor(0xff000000); + int[] pixels = new int[maxHeight * width]; + + int p = 0; + for (Locale loc : locales) { + Bitmap bm = savedBitmaps.get(loc); + int h = bm.getHeight(); + int w = bm.getWidth(); + + bm.getPixels(pixels, 0, w, 0, 0, w, h); + + // Find the rightmost and leftmost columns with any + // nonblack pixels; we'll copy just that region to the + // output image. + + int right = w; + while (right > 1) { + boolean all_black = true; + for (int j = 0; j < h; ++j) { + if (pixels[j*w+right-1] != 0xff000000) { + all_black = false; + break; + } + } + if (all_black) { + --right; + } else { + break; + } + } + + int left = 0; + while (left < right-1) { + boolean all_black = true; + for (int j = 0; j < h; ++j) { + if (pixels[j*w+left] != 0xff000000) { + all_black = false; + break; + } + } + if (all_black) { + ++left; + } else { + break; + } + } + + // Make the last country variant for a given language be + // the catch-all for that language (because recovery will + // take the first one that matches). + String lang = loc.getLanguage(); + if (countByLanguage.get(lang) > 1) { + countByLanguage.put(lang, countByLanguage.get(lang)-1); + lang = loc.toString(); + } + int tw = right - left; + Log.i(TAG, "encoding \"" + loc + "\" as \"" + lang + "\": " + tw + " x " + h); + byte[] langBytes = lang.getBytes(); + out.setPixel(0, p, colorFor(tw & 0xff)); + out.setPixel(1, p, colorFor(tw >>> 8)); + out.setPixel(2, p, colorFor(h & 0xff)); + out.setPixel(3, p, colorFor(h >>> 8)); + out.setPixel(4, p, colorFor(langBytes.length)); + int x = 5; + for (byte b : langBytes) { + out.setPixel(x, p, colorFor(b)); + x++; + } + out.setPixel(x, p, colorFor(0)); + + p++; + + out.setPixels(pixels, left, w, 0, p, tw, h); + p += h; + } + + // if no languages match, suppress text display by using a + // single black pixel as the image. + out.setPixel(0, p, colorFor(1)); + out.setPixel(1, p, colorFor(0)); + out.setPixel(2, p, colorFor(1)); + out.setPixel(3, p, colorFor(0)); + out.setPixel(4, p, colorFor(0)); + p++; + + saveBitmap(out, "text-out.png"); + Log.i(TAG, "wrote text-out.png"); + } +} @@ -28,6 +28,7 @@ #include <time.h> #include <unistd.h> +#include <cutils/properties.h> #include <cutils/android_reboot.h> #include "common.h" @@ -174,7 +175,8 @@ void RecoveryUI::ProcessKey(int key_code, int updown) { case RecoveryUI::REBOOT: if (reboot_enabled) { - android_reboot(ANDROID_RB_RESTART, 0, 0); + property_set(ANDROID_RB_PROPERTY, "reboot,"); + while (true) { pause(); } } break; @@ -39,6 +39,7 @@ class RecoveryUI { // Set the overall recovery state ("background image"). enum Icon { NONE, INSTALLING_UPDATE, ERASING, NO_COMMAND, ERROR }; virtual void SetBackground(Icon icon) = 0; + virtual void SetSystemUpdateText(bool security_update) = 0; // --- progress indicator --- enum ProgressType { EMPTY, INDETERMINATE, DETERMINATE }; @@ -62,8 +63,10 @@ class RecoveryUI { virtual bool WasTextEverVisible() = 0; // Write a message to the on-screen log (shown if the user has - // toggled on the text display). + // toggled on the text display). Print() will also dump the message + // to stdout / log file, while PrintOnScreenOnly() not. virtual void Print(const char* fmt, ...) __printflike(2, 3) = 0; + virtual void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3) = 0; virtual void ShowFile(const char* filename) = 0; diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk index c7d4d3746..09cfdfca5 100644 --- a/uncrypt/Android.mk +++ b/uncrypt/Android.mk @@ -15,11 +15,27 @@ LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) +LOCAL_CLANG := true +LOCAL_SRC_FILES := bootloader_message_writer.cpp +LOCAL_MODULE := libbootloader_message_writer +LOCAL_STATIC_LIBRARIES := libbase libfs_mgr +LOCAL_C_INCLUDES := $(LOCAL_PATH)/.. +LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include +include $(BUILD_STATIC_LIBRARY) + +include $(CLEAR_VARS) + +LOCAL_CLANG := true LOCAL_SRC_FILES := uncrypt.cpp +LOCAL_C_INCLUDES := $(LOCAL_PATH)/.. + LOCAL_MODULE := uncrypt -LOCAL_STATIC_LIBRARIES := libbase liblog libfs_mgr libcutils +LOCAL_STATIC_LIBRARIES := libbootloader_message_writer libbase \ + liblog libfs_mgr libcutils \ + +LOCAL_INIT_RC := uncrypt.rc include $(BUILD_EXECUTABLE) diff --git a/uncrypt/bootloader_message_writer.cpp b/uncrypt/bootloader_message_writer.cpp new file mode 100644 index 000000000..3bb106aa0 --- /dev/null +++ b/uncrypt/bootloader_message_writer.cpp @@ -0,0 +1,107 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <sys/system_properties.h> + +#include <string> +#include <vector> + +#include <android-base/file.h> +#include <android-base/stringprintf.h> +#include <android-base/unique_fd.h> +#include <fs_mgr.h> + +#include "bootloader.h" + +static struct fstab* read_fstab(std::string* err) { + // The fstab path is always "/fstab.${ro.hardware}". + std::string fstab_path = "/fstab."; + char value[PROP_VALUE_MAX]; + if (__system_property_get("ro.hardware", value) == 0) { + *err = "failed to get ro.hardware"; + return nullptr; + } + fstab_path += value; + struct fstab* fstab = fs_mgr_read_fstab(fstab_path.c_str()); + if (fstab == nullptr) { + *err = "failed to read " + fstab_path; + } + return fstab; +} + +static std::string get_misc_blk_device(std::string* err) { + struct fstab* fstab = read_fstab(err); + if (fstab == nullptr) { + return ""; + } + fstab_rec* record = fs_mgr_get_entry_for_mount_point(fstab, "/misc"); + if (record == nullptr) { + *err = "failed to find /misc partition"; + return ""; + } + return record->blk_device; +} + +static bool write_bootloader_message(const bootloader_message& boot, std::string* err) { + std::string misc_blk_device = get_misc_blk_device(err); + if (misc_blk_device.empty()) { + return false; + } + android::base::unique_fd fd(open(misc_blk_device.c_str(), O_WRONLY | O_SYNC)); + if (fd.get() == -1) { + *err = android::base::StringPrintf("failed to open %s: %s", misc_blk_device.c_str(), + strerror(errno)); + return false; + } + if (!android::base::WriteFully(fd.get(), &boot, sizeof(boot))) { + *err = android::base::StringPrintf("failed to write %s: %s", misc_blk_device.c_str(), + strerror(errno)); + return false; + } + // TODO: O_SYNC and fsync duplicates each other? + if (fsync(fd.get()) == -1) { + *err = android::base::StringPrintf("failed to fsync %s: %s", misc_blk_device.c_str(), + strerror(errno)); + return false; + } + return true; +} + +bool clear_bootloader_message(std::string* err) { + bootloader_message boot = {}; + return write_bootloader_message(boot, err); +} + +bool write_bootloader_message(const std::vector<std::string>& options, std::string* err) { + bootloader_message boot = {}; + strlcpy(boot.command, "boot-recovery", sizeof(boot.command)); + strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery)); + for (const auto& s : options) { + strlcat(boot.recovery, s.c_str(), sizeof(boot.recovery)); + if (s.back() != '\n') { + strlcat(boot.recovery, "\n", sizeof(boot.recovery)); + } + } + return write_bootloader_message(boot, err); +} + +extern "C" bool write_bootloader_message(const char* options) { + std::string err; + return write_bootloader_message({options}, &err); +} diff --git a/uncrypt/include/bootloader_message_writer.h b/uncrypt/include/bootloader_message_writer.h new file mode 100644 index 000000000..e0ca3f44a --- /dev/null +++ b/uncrypt/include/bootloader_message_writer.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef BOOTLOADER_MESSAGE_WRITER_H +#define BOOTLOADER_MESSAGE_WRITER_H + +#ifdef __cplusplus +#include <string> +#include <vector> + +bool clear_bootloader_message(std::string* err); + +bool write_bootloader_message(const std::vector<std::string>& options, std::string* err); + +#else +#include <stdbool.h> + +// C Interface. +bool write_bootloader_message(const char* options); +#endif + +#endif // BOOTLOADER_MESSAGE_WRITER_H diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp index 46da86d61..d7105a01f 100644 --- a/uncrypt/uncrypt.cpp +++ b/uncrypt/uncrypt.cpp @@ -39,75 +39,126 @@ // Recovery can take this block map file and retrieve the underlying // file data to use as an update package. +/** + * In addition to the uncrypt work, uncrypt also takes care of setting and + * clearing the bootloader control block (BCB) at /misc partition. + * + * uncrypt is triggered as init services on demand. It uses socket to + * communicate with its caller (i.e. system_server). The socket is managed by + * init (i.e. created prior to the service starts, and destroyed when uncrypt + * exits). + * + * Below is the uncrypt protocol. + * + * a. caller b. init c. uncrypt + * --------------- ------------ -------------- + * a1. ctl.start: + * setup-bcb / + * clear-bcb / + * uncrypt + * + * b2. create socket at + * /dev/socket/uncrypt + * + * c3. listen and accept + * + * a4. send a 4-byte int + * (message length) + * c5. receive message length + * a6. send message + * c7. receive message + * c8. <do the work; may send + * the progress> + * a9. <may handle progress> + * c10. <upon finishing> + * send "100" or "-1" + * + * a11. receive status code + * a12. send a 4-byte int to + * ack the receive of the + * final status code + * c13. receive and exit + * + * b14. destroy the socket + * + * Note that a12 and c13 are necessary to ensure a11 happens before the socket + * gets destroyed in b14. + */ + +#include <arpa/inet.h> #include <errno.h> #include <fcntl.h> +#include <inttypes.h> +#include <libgen.h> #include <linux/fs.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/mman.h> +#include <sys/socket.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> -#include <base/file.h> -#include <base/strings.h> +#include <algorithm> +#include <memory> +#include <vector> + +#include <android-base/file.h> +#include <android-base/logging.h> +#include <android-base/stringprintf.h> +#include <android-base/strings.h> +#include <bootloader_message_writer.h> +#include <cutils/android_reboot.h> #include <cutils/properties.h> +#include <cutils/sockets.h> #include <fs_mgr.h> + #define LOG_TAG "uncrypt" #include <log/log.h> +#include "unique_fd.h" + #define WINDOW_SIZE 5 -static const std::string cache_block_map = "/cache/recovery/block.map"; -static const std::string status_file = "/cache/recovery/uncrypt_status"; -static const std::string uncrypt_file = "/cache/recovery/uncrypt_file"; +// uncrypt provides three services: SETUP_BCB, CLEAR_BCB and UNCRYPT. +// +// SETUP_BCB and CLEAR_BCB services use socket communication and do not rely +// on /cache partitions. They will handle requests to reboot into recovery +// (for applying updates for non-A/B devices, or factory resets for all +// devices). +// +// UNCRYPT service still needs files on /cache partition (UNCRYPT_PATH_FILE +// and CACHE_BLOCK_MAP). It will be working (and needed) only for non-A/B +// devices, on which /cache partitions always exist. +static const std::string CACHE_BLOCK_MAP = "/cache/recovery/block.map"; +static const std::string UNCRYPT_PATH_FILE = "/cache/recovery/uncrypt_file"; +static const std::string UNCRYPT_SOCKET = "uncrypt"; -static struct fstab* fstab = NULL; +static struct fstab* fstab = nullptr; static int write_at_offset(unsigned char* buffer, size_t size, int wfd, off64_t offset) { if (TEMP_FAILURE_RETRY(lseek64(wfd, offset, SEEK_SET)) == -1) { - ALOGE("error seeking to offset %lld: %s\n", offset, strerror(errno)); + ALOGE("error seeking to offset %" PRId64 ": %s", offset, strerror(errno)); return -1; } - size_t written = 0; - while (written < size) { - ssize_t wrote = TEMP_FAILURE_RETRY(write(wfd, buffer + written, size - written)); - if (wrote == -1) { - ALOGE("error writing offset %lld: %s\n", (offset + written), strerror(errno)); - return -1; - } - written += wrote; + if (!android::base::WriteFully(wfd, buffer, size)) { + ALOGE("error writing offset %" PRId64 ": %s", offset, strerror(errno)); + return -1; } return 0; } -static void add_block_to_ranges(int** ranges, int* range_alloc, int* range_used, int new_block) { - // If the current block start is < 0, set the start to the new - // block. (This only happens for the very first block of the very - // first range.) - if ((*ranges)[*range_used*2-2] < 0) { - (*ranges)[*range_used*2-2] = new_block; - (*ranges)[*range_used*2-1] = new_block; - } - - if (new_block == (*ranges)[*range_used*2-1]) { +static void add_block_to_ranges(std::vector<int>& ranges, int new_block) { + if (!ranges.empty() && new_block == ranges.back()) { // If the new block comes immediately after the current range, // all we have to do is extend the current range. - ++(*ranges)[*range_used*2-1]; + ++ranges.back(); } else { // We need to start a new range. - - // If there isn't enough room in the array, we need to expand it. - if (*range_used >= *range_alloc) { - *range_alloc *= 2; - *ranges = reinterpret_cast<int*>(realloc(*ranges, *range_alloc * 2 * sizeof(int))); - } - - ++*range_used; - (*ranges)[*range_used*2-2] = new_block; - (*ranges)[*range_used*2-1] = new_block+1; + ranges.push_back(new_block); + ranges.push_back(new_block + 1); } } @@ -117,13 +168,13 @@ static struct fstab* read_fstab() { // The fstab path is always "/fstab.${ro.hardware}". char fstab_path[PATH_MAX+1] = "/fstab."; if (!property_get("ro.hardware", fstab_path+strlen(fstab_path), "")) { - ALOGE("failed to get ro.hardware\n"); + ALOGE("failed to get ro.hardware"); return NULL; } fstab = fs_mgr_read_fstab(fstab_path); if (!fstab) { - ALOGE("failed to read %s\n", fstab_path); + ALOGE("failed to read %s", fstab_path); return NULL; } @@ -159,101 +210,108 @@ static const char* find_block_device(const char* path, bool* encryptable, bool* return NULL; } +static bool write_status_to_socket(int status, int socket) { + int status_out = htonl(status); + return android::base::WriteFully(socket, &status_out, sizeof(int)); +} + // Parse uncrypt_file to find the update package name. -static bool find_uncrypt_package(std::string& package_name) -{ - if (!android::base::ReadFileToString(uncrypt_file, &package_name)) { - ALOGE("failed to open \"%s\": %s\n", uncrypt_file.c_str(), strerror(errno)); +static bool find_uncrypt_package(const std::string& uncrypt_path_file, std::string* package_name) { + CHECK(package_name != nullptr); + std::string uncrypt_path; + if (!android::base::ReadFileToString(uncrypt_path_file, &uncrypt_path)) { + ALOGE("failed to open \"%s\": %s", uncrypt_path_file.c_str(), strerror(errno)); return false; } // Remove the trailing '\n' if present. - package_name = android::base::Trim(package_name); - + *package_name = android::base::Trim(uncrypt_path); return true; } static int produce_block_map(const char* path, const char* map_file, const char* blk_dev, - bool encrypted, int status_fd) { - int mapfd = open(map_file, O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR); - if (mapfd == -1) { - ALOGE("failed to open %s\n", map_file); + bool encrypted, int socket) { + std::string err; + if (!android::base::RemoveFileIfExists(map_file, &err)) { + ALOGE("failed to remove the existing map file %s: %s", map_file, err.c_str()); + return -1; + } + std::string tmp_map_file = std::string(map_file) + ".tmp"; + unique_fd mapfd(open(tmp_map_file.c_str(), O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)); + if (!mapfd) { + ALOGE("failed to open %s: %s\n", tmp_map_file.c_str(), strerror(errno)); return -1; } - FILE* mapf = fdopen(mapfd, "w"); - // Make sure we can write to the status_file. - if (!android::base::WriteStringToFd("0\n", status_fd)) { - ALOGE("failed to update \"%s\"\n", status_file.c_str()); + // Make sure we can write to the socket. + if (!write_status_to_socket(0, socket)) { + ALOGE("failed to write to socket %d\n", socket); return -1; } struct stat sb; - int ret = stat(path, &sb); - if (ret != 0) { - ALOGE("failed to stat %s\n", path); + if (stat(path, &sb) != 0) { + ALOGE("failed to stat %s", path); return -1; } - ALOGI(" block size: %ld bytes\n", (long)sb.st_blksize); + ALOGI(" block size: %ld bytes", static_cast<long>(sb.st_blksize)); int blocks = ((sb.st_size-1) / sb.st_blksize) + 1; - ALOGI(" file size: %lld bytes, %d blocks\n", (long long)sb.st_size, blocks); + ALOGI(" file size: %" PRId64 " bytes, %d blocks", sb.st_size, blocks); - int range_alloc = 1; - int range_used = 1; - int* ranges = reinterpret_cast<int*>(malloc(range_alloc * 2 * sizeof(int))); - ranges[0] = -1; - ranges[1] = -1; + std::vector<int> ranges; - fprintf(mapf, "%s\n%lld %lu\n", blk_dev, (long long)sb.st_size, (unsigned long)sb.st_blksize); + std::string s = android::base::StringPrintf("%s\n%" PRId64 " %ld\n", + blk_dev, sb.st_size, static_cast<long>(sb.st_blksize)); + if (!android::base::WriteStringToFd(s, mapfd.get())) { + ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno)); + return -1; + } - unsigned char* buffers[WINDOW_SIZE]; + std::vector<std::vector<unsigned char>> buffers; if (encrypted) { - for (size_t i = 0; i < WINDOW_SIZE; ++i) { - buffers[i] = reinterpret_cast<unsigned char*>(malloc(sb.st_blksize)); - } + buffers.resize(WINDOW_SIZE, std::vector<unsigned char>(sb.st_blksize)); } int head_block = 0; int head = 0, tail = 0; - size_t pos = 0; - int fd = open(path, O_RDONLY); - if (fd < 0) { - ALOGE("failed to open fd for reading: %s\n", strerror(errno)); + unique_fd fd(open(path, O_RDONLY)); + if (!fd) { + ALOGE("failed to open %s for reading: %s", path, strerror(errno)); return -1; } - int wfd = -1; + unique_fd wfd(-1); if (encrypted) { - wfd = open(blk_dev, O_WRONLY | O_SYNC); - if (wfd < 0) { - ALOGE("failed to open fd for writing: %s\n", strerror(errno)); + wfd = open(blk_dev, O_WRONLY); + if (!wfd) { + ALOGE("failed to open fd for writing: %s", strerror(errno)); return -1; } } + off64_t pos = 0; int last_progress = 0; while (pos < sb.st_size) { // Update the status file, progress must be between [0, 99]. int progress = static_cast<int>(100 * (double(pos) / double(sb.st_size))); if (progress > last_progress) { - last_progress = progress; - android::base::WriteStringToFd(std::to_string(progress) + "\n", status_fd); + last_progress = progress; + write_status_to_socket(progress, socket); } if ((tail+1) % WINDOW_SIZE == head) { // write out head buffer int block = head_block; - ret = ioctl(fd, FIBMAP, &block); - if (ret != 0) { - ALOGE("failed to find block %d\n", head_block); + if (ioctl(fd.get(), FIBMAP, &block) != 0) { + ALOGE("failed to find block %d", head_block); return -1; } - add_block_to_ranges(&ranges, &range_alloc, &range_used, block); + add_block_to_ranges(ranges, block); if (encrypted) { - if (write_at_offset(buffers[head], sb.st_blksize, wfd, - (off64_t)sb.st_blksize * block) != 0) { + if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd.get(), + static_cast<off64_t>(sb.st_blksize) * block) != 0) { return -1; } } @@ -263,17 +321,13 @@ static int produce_block_map(const char* path, const char* map_file, const char* // read next block to tail if (encrypted) { - size_t so_far = 0; - while (so_far < sb.st_blksize && pos < sb.st_size) { - ssize_t this_read = - TEMP_FAILURE_RETRY(read(fd, buffers[tail] + so_far, sb.st_blksize - so_far)); - if (this_read == -1) { - ALOGE("failed to read: %s\n", strerror(errno)); - return -1; - } - so_far += this_read; - pos += this_read; + size_t to_read = static_cast<size_t>( + std::min(static_cast<off64_t>(sb.st_blksize), sb.st_size - pos)); + if (!android::base::ReadFully(fd.get(), buffers[tail].data(), to_read)) { + ALOGE("failed to read: %s", strerror(errno)); + return -1; } + pos += to_read; } else { // If we're not encrypting; we don't need to actually read // anything, just skip pos forward as if we'd read a @@ -286,15 +340,14 @@ static int produce_block_map(const char* path, const char* map_file, const char* while (head != tail) { // write out head buffer int block = head_block; - ret = ioctl(fd, FIBMAP, &block); - if (ret != 0) { - ALOGE("failed to find block %d\n", head_block); + if (ioctl(fd.get(), FIBMAP, &block) != 0) { + ALOGE("failed to find block %d", head_block); return -1; } - add_block_to_ranges(&ranges, &range_alloc, &range_used, block); + add_block_to_ranges(ranges, block); if (encrypted) { - if (write_at_offset(buffers[head], sb.st_blksize, wfd, - (off64_t)sb.st_blksize * block) != 0) { + if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd.get(), + static_cast<off64_t>(sb.st_blksize) * block) != 0) { return -1; } } @@ -302,68 +355,66 @@ static int produce_block_map(const char* path, const char* map_file, const char* ++head_block; } - fprintf(mapf, "%d\n", range_used); - for (int i = 0; i < range_used; ++i) { - fprintf(mapf, "%d %d\n", ranges[i*2], ranges[i*2+1]); - } - - if (fsync(mapfd) == -1) { - ALOGE("failed to fsync \"%s\": %s\n", map_file, strerror(errno)); + if (!android::base::WriteStringToFd( + android::base::StringPrintf("%zu\n", ranges.size() / 2), mapfd.get())) { + ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno)); return -1; } - fclose(mapf); - close(fd); - if (encrypted) { - if (fsync(wfd) == -1) { - ALOGE("failed to fsync \"%s\": %s\n", blk_dev, strerror(errno)); + for (size_t i = 0; i < ranges.size(); i += 2) { + if (!android::base::WriteStringToFd( + android::base::StringPrintf("%d %d\n", ranges[i], ranges[i+1]), mapfd.get())) { + ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno)); return -1; } - close(wfd); } - return 0; -} + if (fsync(mapfd.get()) == -1) { + ALOGE("failed to fsync \"%s\": %s", tmp_map_file.c_str(), strerror(errno)); + return -1; + } + if (close(mapfd.get()) == -1) { + ALOGE("failed to close %s: %s", tmp_map_file.c_str(), strerror(errno)); + return -1; + } + mapfd = -1; -static void wipe_misc() { - ALOGI("removing old commands from misc"); - for (int i = 0; i < fstab->num_entries; ++i) { - struct fstab_rec* v = &fstab->recs[i]; - if (!v->mount_point) continue; - if (strcmp(v->mount_point, "/misc") == 0) { - int fd = open(v->blk_device, O_WRONLY | O_SYNC); - uint8_t zeroes[1088]; // sizeof(bootloader_message) from recovery - memset(zeroes, 0, sizeof(zeroes)); - - size_t written = 0; - size_t size = sizeof(zeroes); - while (written < size) { - ssize_t w = TEMP_FAILURE_RETRY(write(fd, zeroes, size-written)); - if (w == -1) { - ALOGE("zero write failed: %s\n", strerror(errno)); - return; - } else { - written += w; - } - } - if (fsync(fd) == -1) { - ALOGE("failed to fsync \"%s\": %s\n", v->blk_device, strerror(errno)); - close(fd); - return; - } - close(fd); + if (encrypted) { + if (fsync(wfd.get()) == -1) { + ALOGE("failed to fsync \"%s\": %s", blk_dev, strerror(errno)); + return -1; + } + if (close(wfd.get()) == -1) { + ALOGE("failed to close %s: %s", blk_dev, strerror(errno)); + return -1; } + wfd = -1; } -} -static void reboot_to_recovery() { - ALOGI("rebooting to recovery"); - property_set("sys.powerctl", "reboot,recovery"); - sleep(10); - ALOGE("reboot didn't succeed?"); + if (rename(tmp_map_file.c_str(), map_file) == -1) { + ALOGE("failed to rename %s to %s: %s", tmp_map_file.c_str(), map_file, strerror(errno)); + return -1; + } + // Sync dir to make rename() result written to disk. + std::string file_name = map_file; + std::string dir_name = dirname(&file_name[0]); + unique_fd dfd(open(dir_name.c_str(), O_RDONLY | O_DIRECTORY)); + if (!dfd) { + ALOGE("failed to open dir %s: %s", dir_name.c_str(), strerror(errno)); + return -1; + } + if (fsync(dfd.get()) == -1) { + ALOGE("failed to fsync %s: %s", dir_name.c_str(), strerror(errno)); + return -1; + } + if (close(dfd.get()) == -1) { + ALOGE("failed to close %s: %s", dir_name.c_str(), strerror(errno)); + return -1; + } + dfd = -1; + return 0; } -int uncrypt(const char* input_path, const char* map_file, int status_fd) { - +static int uncrypt(const char* input_path, const char* map_file, const int socket) { ALOGI("update package is \"%s\"", input_path); // Turn the name of the file we're supposed to convert into an @@ -374,10 +425,6 @@ int uncrypt(const char* input_path, const char* map_file, int status_fd) { return 1; } - if (read_fstab() == NULL) { - return 1; - } - bool encryptable; bool encrypted; const char* blk_dev = find_block_device(path, &encryptable, &encrypted); @@ -389,8 +436,8 @@ int uncrypt(const char* input_path, const char* map_file, int status_fd) { // If the filesystem it's on isn't encrypted, we only produce the // block map, we don't rewrite the file contents (it would be // pointless to do so). - ALOGI("encryptable: %s\n", encryptable ? "yes" : "no"); - ALOGI(" encrypted: %s\n", encrypted ? "yes" : "no"); + ALOGI("encryptable: %s", encryptable ? "yes" : "no"); + ALOGI(" encrypted: %s", encrypted ? "yes" : "no"); // Recovery supports installing packages from 3 paths: /cache, // /data, and /sdcard. (On a particular device, other locations @@ -401,7 +448,7 @@ int uncrypt(const char* input_path, const char* map_file, int status_fd) { // and /sdcard we leave the file alone. if (strncmp(path, "/data/", 6) == 0) { ALOGI("writing block map %s", map_file); - if (produce_block_map(path, map_file, blk_dev, encrypted, status_fd) != 0) { + if (produce_block_map(path, map_file, blk_dev, encrypted, socket) != 0) { return 1; } } @@ -409,57 +456,141 @@ int uncrypt(const char* input_path, const char* map_file, int status_fd) { return 0; } -int main(int argc, char** argv) { - const char* input_path; - const char* map_file; +static bool uncrypt_wrapper(const char* input_path, const char* map_file, const int socket) { + std::string package; + if (input_path == nullptr) { + if (!find_uncrypt_package(UNCRYPT_PATH_FILE, &package)) { + write_status_to_socket(-1, socket); + return false; + } + input_path = package.c_str(); + } + CHECK(map_file != nullptr); + int status = uncrypt(input_path, map_file, socket); + if (status != 0) { + write_status_to_socket(-1, socket); + return false; + } + write_status_to_socket(100, socket); + return true; +} - if (argc != 3 && argc != 1 && (argc == 2 && strcmp(argv[1], "--reboot") != 0)) { - fprintf(stderr, "usage: %s [--reboot] [<transform_path> <map_file>]\n", argv[0]); - return 2; +static bool clear_bcb(const int socket) { + std::string err; + if (!clear_bootloader_message(&err)) { + ALOGE("failed to clear bootloader message: %s", err.c_str()); + write_status_to_socket(-1, socket); + return false; } + write_status_to_socket(100, socket); + return true; +} - // When uncrypt is started with "--reboot", it wipes misc and reboots. - // Otherwise it uncrypts the package and writes the block map. - if (argc == 2) { - if (read_fstab() == NULL) { - return 1; - } - wipe_misc(); - reboot_to_recovery(); +static bool setup_bcb(const int socket) { + // c5. receive message length + int length; + if (!android::base::ReadFully(socket, &length, 4)) { + ALOGE("failed to read the length: %s", strerror(errno)); + return false; + } + length = ntohl(length); + + // c7. receive message + std::string content; + content.resize(length); + if (!android::base::ReadFully(socket, &content[0], length)) { + ALOGE("failed to read the length: %s", strerror(errno)); + return false; + } + ALOGI(" received command: [%s] (%zu)", content.c_str(), content.size()); + + // c8. setup the bcb command + std::string err; + if (!write_bootloader_message({content}, &err)) { + ALOGE("failed to set bootloader message: %s", err.c_str()); + write_status_to_socket(-1, socket); + return false; + } + // c10. send "100" status + write_status_to_socket(100, socket); + return true; +} + +static void usage(const char* exename) { + fprintf(stderr, "Usage of %s:\n", exename); + fprintf(stderr, "%s [<package_path> <map_file>] Uncrypt ota package.\n", exename); + fprintf(stderr, "%s --clear-bcb Clear BCB data in misc partition.\n", exename); + fprintf(stderr, "%s --setup-bcb Setup BCB data by command file.\n", exename); +} + +int main(int argc, char** argv) { + enum { UNCRYPT, SETUP_BCB, CLEAR_BCB } action; + const char* input_path = nullptr; + const char* map_file = CACHE_BLOCK_MAP.c_str(); + + if (argc == 2 && strcmp(argv[1], "--clear-bcb") == 0) { + action = CLEAR_BCB; + } else if (argc == 2 && strcmp(argv[1], "--setup-bcb") == 0) { + action = SETUP_BCB; + } else if (argc == 1) { + action = UNCRYPT; + } else if (argc == 3) { + input_path = argv[1]; + map_file = argv[2]; + action = UNCRYPT; } else { - // The pipe has been created by the system server. - int status_fd = open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR); - if (status_fd == -1) { - ALOGE("failed to open pipe \"%s\": %s\n", status_file.c_str(), strerror(errno)); - return 1; - } + usage(argv[0]); + return 2; + } - if (argc == 3) { - // when command-line args are given this binary is being used - // for debugging. - input_path = argv[1]; - map_file = argv[2]; - } else { - std::string package; - if (!find_uncrypt_package(package)) { - android::base::WriteStringToFd("-1\n", status_fd); - close(status_fd); - return 1; - } - input_path = package.c_str(); - map_file = cache_block_map.c_str(); - } + if ((fstab = read_fstab()) == nullptr) { + return 1; + } - int status = uncrypt(input_path, map_file, status_fd); - if (status != 0) { - android::base::WriteStringToFd("-1\n", status_fd); - close(status_fd); - return 1; - } + // c3. The socket is created by init when starting the service. uncrypt + // will use the socket to communicate with its caller. + unique_fd service_socket(android_get_control_socket(UNCRYPT_SOCKET.c_str())); + if (!service_socket) { + ALOGE("failed to open socket \"%s\": %s", UNCRYPT_SOCKET.c_str(), strerror(errno)); + return 1; + } + fcntl(service_socket.get(), F_SETFD, FD_CLOEXEC); - android::base::WriteStringToFd("100\n", status_fd); - close(status_fd); + if (listen(service_socket.get(), 1) == -1) { + ALOGE("failed to listen on socket %d: %s", service_socket.get(), strerror(errno)); + return 1; } - return 0; + unique_fd socket_fd(accept4(service_socket.get(), nullptr, nullptr, SOCK_CLOEXEC)); + if (!socket_fd) { + ALOGE("failed to accept on socket %d: %s", service_socket.get(), strerror(errno)); + return 1; + } + + bool success = false; + switch (action) { + case UNCRYPT: + success = uncrypt_wrapper(input_path, map_file, socket_fd.get()); + break; + case SETUP_BCB: + success = setup_bcb(socket_fd.get()); + break; + case CLEAR_BCB: + success = clear_bcb(socket_fd.get()); + break; + default: // Should never happen. + ALOGE("Invalid uncrypt action code: %d", action); + return 1; + } + + // c13. Read a 4-byte code from the client before uncrypt exits. This is to + // ensure the client to receive the last status code before the socket gets + // destroyed. + int code; + if (android::base::ReadFully(socket_fd.get(), &code, 4)) { + ALOGI(" received %d, exiting now", code); + } else { + ALOGE("failed to read the code: %s", strerror(errno)); + } + return success ? 0 : 1; } diff --git a/uncrypt/uncrypt.rc b/uncrypt/uncrypt.rc new file mode 100644 index 000000000..52f564eb6 --- /dev/null +++ b/uncrypt/uncrypt.rc @@ -0,0 +1,17 @@ +service uncrypt /system/bin/uncrypt + class main + socket uncrypt stream 600 system system + disabled + oneshot + +service setup-bcb /system/bin/uncrypt --setup-bcb + class main + socket uncrypt stream 600 system system + disabled + oneshot + +service clear-bcb /system/bin/uncrypt --clear-bcb + class main + socket uncrypt stream 600 system system + disabled + oneshot diff --git a/unique_fd.h b/unique_fd.h new file mode 100644 index 000000000..cc85383f8 --- /dev/null +++ b/unique_fd.h @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef UNIQUE_FD_H +#define UNIQUE_FD_H + +#include <stdio.h> + +#include <memory> + +class unique_fd { + public: + unique_fd(int fd) : fd_(fd) { } + + unique_fd(unique_fd&& uf) { + fd_ = uf.fd_; + uf.fd_ = -1; + } + + ~unique_fd() { + if (fd_ != -1) { + close(fd_); + } + } + + int get() { + return fd_; + } + + // Movable. + unique_fd& operator=(unique_fd&& uf) { + fd_ = uf.fd_; + uf.fd_ = -1; + return *this; + } + + explicit operator bool() const { + return fd_ != -1; + } + + private: + int fd_; + + // Non-copyable. + unique_fd(const unique_fd&) = delete; + unique_fd& operator=(const unique_fd&) = delete; +}; + +#endif // UNIQUE_FD_H diff --git a/update_verifier/Android.mk b/update_verifier/Android.mk new file mode 100644 index 000000000..7f28bcedc --- /dev/null +++ b/update_verifier/Android.mk @@ -0,0 +1,24 @@ +# Copyright (C) 2015 The Android Open Source Project +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_CLANG := true +LOCAL_SRC_FILES := update_verifier.cpp +LOCAL_MODULE := update_verifier +LOCAL_SHARED_LIBRARIES := libhardware liblog + +include $(BUILD_EXECUTABLE) diff --git a/update_verifier/update_verifier.cpp b/update_verifier/update_verifier.cpp new file mode 100644 index 000000000..be70cec7f --- /dev/null +++ b/update_verifier/update_verifier.cpp @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* + * This program verifies the integrity of the partitions after an A/B OTA + * update. It gets invoked by init, and will only perform the verification if + * it's the first boot post an A/B OTA update. + * + * It relies on dm-verity to capture any corruption on the partitions being + * verified. dm-verity must be in enforcing mode, so that it will reboot the + * device on dm-verity failures. When that happens, the bootloader should + * mark the slot as unbootable and stops trying. We should never see a device + * started in dm-verity logging mode but with isSlotMarkedSuccessful equals to + * 0. + * + * The current slot will be marked as having booted successfully if the + * verifier reaches the end after the verification. + * + * TODO: The actual verification part will be added later after we have the + * A/B OTA package format in place. + */ + +#include <string.h> + +#include <hardware/boot_control.h> + +#define LOG_TAG "update_verifier" +#include <log/log.h> + +int main(int argc, char** argv) { + for (int i = 1; i < argc; i++) { + SLOGI("Started with arg %d: %s\n", i, argv[i]); + } + + const hw_module_t* hw_module; + if (hw_get_module("bootctrl", &hw_module) != 0) { + SLOGE("Error getting bootctrl module.\n"); + return -1; + } + + boot_control_module_t* module = reinterpret_cast<boot_control_module_t*>( + const_cast<hw_module_t*>(hw_module)); + module->init(module); + + unsigned current_slot = module->getCurrentSlot(module); + int is_successful= module->isSlotMarkedSuccessful(module, current_slot); + SLOGI("Booting slot %u: isSlotMarkedSuccessful=%d\n", current_slot, is_successful); + + if (is_successful == 0) { + // The current slot has not booted successfully. + + // TODO: Add the actual verification after we have the A/B OTA package + // format in place. + + // TODO: Assert the dm-verity mode. Bootloader should never boot a newly + // flashed slot (isSlotMarkedSuccessful == 0) with dm-verity logging mode. + + int ret = module->markBootSuccessful(module); + if (ret != 0) { + SLOGE("Error marking booted successfully: %s\n", strerror(-ret)); + return -1; + } + SLOGI("Marked slot %u as booted successfully.\n", current_slot); + } + + SLOGI("Leaving update_verifier.\n"); + return 0; +} diff --git a/updater/Android.mk b/updater/Android.mk index ff02a33b0..d7aa613e9 100644 --- a/updater/Android.mk +++ b/updater/Android.mk @@ -1,11 +1,23 @@ # Copyright 2009 The Android Open Source Project +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. LOCAL_PATH := $(call my-dir) updater_src_files := \ - install.c \ - blockimg.c \ - updater.c + install.cpp \ + blockimg.cpp \ + updater.cpp # # Build a statically-linked binary to include in OTA packages @@ -17,22 +29,25 @@ include $(CLEAR_VARS) # needed only for OTA packages.) LOCAL_MODULE_TAGS := eng +LOCAL_CLANG := true + LOCAL_SRC_FILES := $(updater_src_files) +LOCAL_STATIC_LIBRARIES += libfec libfec_rs libext4_utils_static libsquashfs_utils libcrypto_static + ifeq ($(TARGET_USERIMAGES_USE_EXT4), true) LOCAL_CFLAGS += -DUSE_EXT4 LOCAL_CFLAGS += -Wno-unused-parameter LOCAL_C_INCLUDES += system/extras/ext4_utils LOCAL_STATIC_LIBRARIES += \ - libext4_utils_static \ libsparse_static \ libz endif LOCAL_STATIC_LIBRARIES += $(TARGET_RECOVERY_UPDATER_LIBS) $(TARGET_RECOVERY_UPDATER_EXTRA_LIBS) -LOCAL_STATIC_LIBRARIES += libapplypatch libedify libmtdutils libminzip libz -LOCAL_STATIC_LIBRARIES += libmincrypt libbz -LOCAL_STATIC_LIBRARIES += libcutils liblog libstdc++ libc +LOCAL_STATIC_LIBRARIES += libapplypatch libbase libotafault libedify libmtdutils libminzip libz +LOCAL_STATIC_LIBRARIES += libbz +LOCAL_STATIC_LIBRARIES += libcutils liblog libc LOCAL_STATIC_LIBRARIES += libselinux tune2fs_static_libraries := \ libext2_com_err \ diff --git a/updater/blockimg.c b/updater/blockimg.c deleted file mode 100644 index b006d10c5..000000000 --- a/updater/blockimg.c +++ /dev/null @@ -1,1953 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <ctype.h> -#include <errno.h> -#include <dirent.h> -#include <fcntl.h> -#include <inttypes.h> -#include <libgen.h> -#include <pthread.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/ioctl.h> -#include <time.h> -#include <unistd.h> - -#include "applypatch/applypatch.h" -#include "edify/expr.h" -#include "mincrypt/sha.h" -#include "minzip/Hash.h" -#include "updater.h" - -#define BLOCKSIZE 4096 - -// Set this to 0 to interpret 'erase' transfers to mean do a -// BLKDISCARD ioctl (the normal behavior). Set to 1 to interpret -// erase to mean fill the region with zeroes. -#define DEBUG_ERASE 0 - -#ifndef BLKDISCARD -#define BLKDISCARD _IO(0x12,119) -#endif - -#define STASH_DIRECTORY_BASE "/cache/recovery" -#define STASH_DIRECTORY_MODE 0700 -#define STASH_FILE_MODE 0600 - -char* PrintSha1(const uint8_t* digest); - -typedef struct { - int count; - int size; - int pos[0]; -} RangeSet; - -static RangeSet* parse_range(char* text) { - char* save; - int num; - num = strtol(strtok_r(text, ",", &save), NULL, 0); - - RangeSet* out = malloc(sizeof(RangeSet) + num * sizeof(int)); - if (out == NULL) { - fprintf(stderr, "failed to allocate range of %zu bytes\n", - sizeof(RangeSet) + num * sizeof(int)); - exit(1); - } - out->count = num / 2; - out->size = 0; - int i; - for (i = 0; i < num; ++i) { - out->pos[i] = strtol(strtok_r(NULL, ",", &save), NULL, 0); - if (i%2) { - out->size += out->pos[i]; - } else { - out->size -= out->pos[i]; - } - } - - return out; -} - -static int range_overlaps(RangeSet* r1, RangeSet* r2) { - int i, j, r1_0, r1_1, r2_0, r2_1; - - if (!r1 || !r2) { - return 0; - } - - for (i = 0; i < r1->count; ++i) { - r1_0 = r1->pos[i * 2]; - r1_1 = r1->pos[i * 2 + 1]; - - for (j = 0; j < r2->count; ++j) { - r2_0 = r2->pos[j * 2]; - r2_1 = r2->pos[j * 2 + 1]; - - if (!(r2_0 >= r1_1 || r1_0 >= r2_1)) { - return 1; - } - } - } - - return 0; -} - -static int read_all(int fd, uint8_t* data, size_t size) { - size_t so_far = 0; - while (so_far < size) { - ssize_t r = TEMP_FAILURE_RETRY(read(fd, data+so_far, size-so_far)); - if (r == -1) { - fprintf(stderr, "read failed: %s\n", strerror(errno)); - return -1; - } - so_far += r; - } - return 0; -} - -static int write_all(int fd, const uint8_t* data, size_t size) { - size_t written = 0; - while (written < size) { - ssize_t w = TEMP_FAILURE_RETRY(write(fd, data+written, size-written)); - if (w == -1) { - fprintf(stderr, "write failed: %s\n", strerror(errno)); - return -1; - } - written += w; - } - - if (fsync(fd) == -1) { - fprintf(stderr, "fsync failed: %s\n", strerror(errno)); - return -1; - } - - return 0; -} - -static bool check_lseek(int fd, off64_t offset, int whence) { - off64_t rc = TEMP_FAILURE_RETRY(lseek64(fd, offset, whence)); - if (rc == -1) { - fprintf(stderr, "lseek64 failed: %s\n", strerror(errno)); - return false; - } - return true; -} - -static void allocate(size_t size, uint8_t** buffer, size_t* buffer_alloc) { - // if the buffer's big enough, reuse it. - if (size <= *buffer_alloc) return; - - free(*buffer); - - *buffer = (uint8_t*) malloc(size); - if (*buffer == NULL) { - fprintf(stderr, "failed to allocate %zu bytes\n", size); - exit(1); - } - *buffer_alloc = size; -} - -typedef struct { - int fd; - RangeSet* tgt; - int p_block; - size_t p_remain; -} RangeSinkState; - -static ssize_t RangeSinkWrite(const uint8_t* data, ssize_t size, void* token) { - RangeSinkState* rss = (RangeSinkState*) token; - - if (rss->p_remain <= 0) { - fprintf(stderr, "range sink write overrun"); - return 0; - } - - ssize_t written = 0; - while (size > 0) { - size_t write_now = size; - - if (rss->p_remain < write_now) { - write_now = rss->p_remain; - } - - if (write_all(rss->fd, data, write_now) == -1) { - break; - } - - data += write_now; - size -= write_now; - - rss->p_remain -= write_now; - written += write_now; - - if (rss->p_remain == 0) { - // move to the next block - ++rss->p_block; - if (rss->p_block < rss->tgt->count) { - rss->p_remain = (rss->tgt->pos[rss->p_block * 2 + 1] - - rss->tgt->pos[rss->p_block * 2]) * BLOCKSIZE; - - if (!check_lseek(rss->fd, (off64_t)rss->tgt->pos[rss->p_block*2] * BLOCKSIZE, - SEEK_SET)) { - break; - } - } else { - // we can't write any more; return how many bytes have - // been written so far. - break; - } - } - } - - return written; -} - -// All of the data for all the 'new' transfers is contained in one -// file in the update package, concatenated together in the order in -// which transfers.list will need it. We want to stream it out of the -// archive (it's compressed) without writing it to a temp file, but we -// can't write each section until it's that transfer's turn to go. -// -// To achieve this, we expand the new data from the archive in a -// background thread, and block that threads 'receive uncompressed -// data' function until the main thread has reached a point where we -// want some new data to be written. We signal the background thread -// with the destination for the data and block the main thread, -// waiting for the background thread to complete writing that section. -// Then it signals the main thread to wake up and goes back to -// blocking waiting for a transfer. -// -// NewThreadInfo is the struct used to pass information back and forth -// between the two threads. When the main thread wants some data -// written, it sets rss to the destination location and signals the -// condition. When the background thread is done writing, it clears -// rss and signals the condition again. - -typedef struct { - ZipArchive* za; - const ZipEntry* entry; - - RangeSinkState* rss; - - pthread_mutex_t mu; - pthread_cond_t cv; -} NewThreadInfo; - -static bool receive_new_data(const unsigned char* data, int size, void* cookie) { - NewThreadInfo* nti = (NewThreadInfo*) cookie; - - while (size > 0) { - // Wait for nti->rss to be non-NULL, indicating some of this - // data is wanted. - pthread_mutex_lock(&nti->mu); - while (nti->rss == NULL) { - pthread_cond_wait(&nti->cv, &nti->mu); - } - pthread_mutex_unlock(&nti->mu); - - // At this point nti->rss is set, and we own it. The main - // thread is waiting for it to disappear from nti. - ssize_t written = RangeSinkWrite(data, size, nti->rss); - data += written; - size -= written; - - if (nti->rss->p_block == nti->rss->tgt->count) { - // we have written all the bytes desired by this rss. - - pthread_mutex_lock(&nti->mu); - nti->rss = NULL; - pthread_cond_broadcast(&nti->cv); - pthread_mutex_unlock(&nti->mu); - } - } - - return true; -} - -static void* unzip_new_data(void* cookie) { - NewThreadInfo* nti = (NewThreadInfo*) cookie; - mzProcessZipEntryContents(nti->za, nti->entry, receive_new_data, nti); - return NULL; -} - -static int ReadBlocks(RangeSet* src, uint8_t* buffer, int fd) { - int i; - size_t p = 0; - size_t size; - - if (!src || !buffer) { - return -1; - } - - for (i = 0; i < src->count; ++i) { - if (!check_lseek(fd, (off64_t) src->pos[i * 2] * BLOCKSIZE, SEEK_SET)) { - return -1; - } - - size = (src->pos[i * 2 + 1] - src->pos[i * 2]) * BLOCKSIZE; - - if (read_all(fd, buffer + p, size) == -1) { - return -1; - } - - p += size; - } - - return 0; -} - -static int WriteBlocks(RangeSet* tgt, uint8_t* buffer, int fd) { - int i; - size_t p = 0; - size_t size; - - if (!tgt || !buffer) { - return -1; - } - - for (i = 0; i < tgt->count; ++i) { - if (!check_lseek(fd, (off64_t) tgt->pos[i * 2] * BLOCKSIZE, SEEK_SET)) { - return -1; - } - - size = (tgt->pos[i * 2 + 1] - tgt->pos[i * 2]) * BLOCKSIZE; - - if (write_all(fd, buffer + p, size) == -1) { - return -1; - } - - p += size; - } - - return 0; -} - -// Do a source/target load for move/bsdiff/imgdiff in version 1. -// 'wordsave' is the save_ptr of a strtok_r()-in-progress. We expect -// to parse the remainder of the string as: -// -// <src_range> <tgt_range> -// -// The source range is loaded into the provided buffer, reallocating -// it to make it larger if necessary. The target ranges are returned -// in *tgt, if tgt is non-NULL. - -static int LoadSrcTgtVersion1(char** wordsave, RangeSet** tgt, int* src_blocks, - uint8_t** buffer, size_t* buffer_alloc, int fd) { - char* word; - int rc; - - word = strtok_r(NULL, " ", wordsave); - RangeSet* src = parse_range(word); - - if (tgt != NULL) { - word = strtok_r(NULL, " ", wordsave); - *tgt = parse_range(word); - } - - allocate(src->size * BLOCKSIZE, buffer, buffer_alloc); - rc = ReadBlocks(src, *buffer, fd); - *src_blocks = src->size; - - free(src); - return rc; -} - -static int VerifyBlocks(const char *expected, const uint8_t *buffer, - size_t blocks, int printerror) { - char* hexdigest = NULL; - int rc = -1; - uint8_t digest[SHA_DIGEST_SIZE]; - - if (!expected || !buffer) { - return rc; - } - - SHA_hash(buffer, blocks * BLOCKSIZE, digest); - hexdigest = PrintSha1(digest); - - if (hexdigest != NULL) { - rc = strcmp(expected, hexdigest); - - if (rc != 0 && printerror) { - fprintf(stderr, "failed to verify blocks (expected %s, read %s)\n", - expected, hexdigest); - } - - free(hexdigest); - } - - return rc; -} - -static char* GetStashFileName(const char* base, const char* id, const char* postfix) { - char* fn; - int len; - int res; - - if (base == NULL) { - return NULL; - } - - if (id == NULL) { - id = ""; - } - - if (postfix == NULL) { - postfix = ""; - } - - len = strlen(STASH_DIRECTORY_BASE) + 1 + strlen(base) + 1 + strlen(id) + strlen(postfix) + 1; - fn = malloc(len); - - if (fn == NULL) { - fprintf(stderr, "failed to malloc %d bytes for fn\n", len); - return NULL; - } - - res = snprintf(fn, len, STASH_DIRECTORY_BASE "/%s/%s%s", base, id, postfix); - - if (res < 0 || res >= len) { - fprintf(stderr, "failed to format file name (return value %d)\n", res); - free(fn); - return NULL; - } - - return fn; -} - -typedef void (*StashCallback)(const char*, void*); - -// Does a best effort enumeration of stash files. Ignores possible non-file -// items in the stash directory and continues despite of errors. Calls the -// 'callback' function for each file and passes 'data' to the function as a -// parameter. - -static void EnumerateStash(const char* dirname, StashCallback callback, void* data) { - char* fn; - DIR* directory; - int len; - int res; - struct dirent* item; - - if (dirname == NULL || callback == NULL) { - return; - } - - directory = opendir(dirname); - - if (directory == NULL) { - if (errno != ENOENT) { - fprintf(stderr, "opendir \"%s\" failed: %s\n", dirname, strerror(errno)); - } - return; - } - - while ((item = readdir(directory)) != NULL) { - if (item->d_type != DT_REG) { - continue; - } - - len = strlen(dirname) + 1 + strlen(item->d_name) + 1; - fn = malloc(len); - - if (fn == NULL) { - fprintf(stderr, "failed to malloc %d bytes for fn\n", len); - continue; - } - - res = snprintf(fn, len, "%s/%s", dirname, item->d_name); - - if (res < 0 || res >= len) { - fprintf(stderr, "failed to format file name (return value %d)\n", res); - free(fn); - continue; - } - - callback(fn, data); - free(fn); - } - - if (closedir(directory) == -1) { - fprintf(stderr, "closedir \"%s\" failed: %s\n", dirname, strerror(errno)); - } -} - -static void UpdateFileSize(const char* fn, void* data) { - int* size = (int*) data; - struct stat st; - - if (!fn || !data) { - return; - } - - if (stat(fn, &st) == -1) { - fprintf(stderr, "stat \"%s\" failed: %s\n", fn, strerror(errno)); - return; - } - - *size += st.st_size; -} - -// Deletes the stash directory and all files in it. Assumes that it only -// contains files. There is nothing we can do about unlikely, but possible -// errors, so they are merely logged. - -static void DeleteFile(const char* fn, void* data) { - if (fn) { - fprintf(stderr, "deleting %s\n", fn); - - if (unlink(fn) == -1 && errno != ENOENT) { - fprintf(stderr, "unlink \"%s\" failed: %s\n", fn, strerror(errno)); - } - } -} - -static void DeletePartial(const char* fn, void* data) { - if (fn && strstr(fn, ".partial") != NULL) { - DeleteFile(fn, data); - } -} - -static void DeleteStash(const char* base) { - char* dirname; - - if (base == NULL) { - return; - } - - dirname = GetStashFileName(base, NULL, NULL); - - if (dirname == NULL) { - return; - } - - fprintf(stderr, "deleting stash %s\n", base); - EnumerateStash(dirname, DeleteFile, NULL); - - if (rmdir(dirname) == -1) { - if (errno != ENOENT && errno != ENOTDIR) { - fprintf(stderr, "rmdir \"%s\" failed: %s\n", dirname, strerror(errno)); - } - } - - free(dirname); -} - -static int LoadStash(const char* base, const char* id, int verify, int* blocks, uint8_t** buffer, - size_t* buffer_alloc, int printnoent) { - char *fn = NULL; - int blockcount = 0; - int fd = -1; - int rc = -1; - int res; - struct stat st; - - if (!base || !id || !buffer || !buffer_alloc) { - goto lsout; - } - - if (!blocks) { - blocks = &blockcount; - } - - fn = GetStashFileName(base, id, NULL); - - if (fn == NULL) { - goto lsout; - } - - res = stat(fn, &st); - - if (res == -1) { - if (errno != ENOENT || printnoent) { - fprintf(stderr, "stat \"%s\" failed: %s\n", fn, strerror(errno)); - } - goto lsout; - } - - fprintf(stderr, " loading %s\n", fn); - - if ((st.st_size % BLOCKSIZE) != 0) { - fprintf(stderr, "%s size %zd not multiple of block size %d", fn, st.st_size, BLOCKSIZE); - goto lsout; - } - - fd = TEMP_FAILURE_RETRY(open(fn, O_RDONLY)); - - if (fd == -1) { - fprintf(stderr, "open \"%s\" failed: %s\n", fn, strerror(errno)); - goto lsout; - } - - allocate(st.st_size, buffer, buffer_alloc); - - if (read_all(fd, *buffer, st.st_size) == -1) { - goto lsout; - } - - *blocks = st.st_size / BLOCKSIZE; - - if (verify && VerifyBlocks(id, *buffer, *blocks, 1) != 0) { - fprintf(stderr, "unexpected contents in %s\n", fn); - DeleteFile(fn, NULL); - goto lsout; - } - - rc = 0; - -lsout: - if (fd != -1) { - close(fd); - } - - if (fn) { - free(fn); - } - - return rc; -} - -static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buffer, - int checkspace, int *exists) { - char *fn = NULL; - char *cn = NULL; - int fd = -1; - int rc = -1; - int dfd = -1; - int res; - struct stat st; - - if (base == NULL || buffer == NULL) { - goto wsout; - } - - if (checkspace && CacheSizeCheck(blocks * BLOCKSIZE) != 0) { - fprintf(stderr, "not enough space to write stash\n"); - goto wsout; - } - - fn = GetStashFileName(base, id, ".partial"); - cn = GetStashFileName(base, id, NULL); - - if (fn == NULL || cn == NULL) { - goto wsout; - } - - if (exists) { - res = stat(cn, &st); - - if (res == 0) { - // The file already exists and since the name is the hash of the contents, - // it's safe to assume the contents are identical (accidental hash collisions - // are unlikely) - fprintf(stderr, " skipping %d existing blocks in %s\n", blocks, cn); - *exists = 1; - rc = 0; - goto wsout; - } - - *exists = 0; - } - - fprintf(stderr, " writing %d blocks to %s\n", blocks, cn); - - fd = TEMP_FAILURE_RETRY(open(fn, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, STASH_FILE_MODE)); - - if (fd == -1) { - fprintf(stderr, "failed to create \"%s\": %s\n", fn, strerror(errno)); - goto wsout; - } - - if (write_all(fd, buffer, blocks * BLOCKSIZE) == -1) { - goto wsout; - } - - if (fsync(fd) == -1) { - fprintf(stderr, "fsync \"%s\" failed: %s\n", fn, strerror(errno)); - goto wsout; - } - - if (rename(fn, cn) == -1) { - fprintf(stderr, "rename(\"%s\", \"%s\") failed: %s\n", fn, cn, strerror(errno)); - goto wsout; - } - - const char* dname; - dname = dirname(cn); - dfd = TEMP_FAILURE_RETRY(open(dname, O_RDONLY | O_DIRECTORY)); - - if (dfd == -1) { - fprintf(stderr, "failed to open \"%s\" failed: %s\n", dname, strerror(errno)); - goto wsout; - } - - if (fsync(dfd) == -1) { - fprintf(stderr, "fsync \"%s\" failed: %s\n", dname, strerror(errno)); - goto wsout; - } - - rc = 0; - -wsout: - if (fd != -1) { - close(fd); - } - - if (dfd != -1) { - close(dfd); - } - - if (fn) { - free(fn); - } - - if (cn) { - free(cn); - } - - return rc; -} - -// Creates a directory for storing stash files and checks if the /cache partition -// hash enough space for the expected amount of blocks we need to store. Returns -// >0 if we created the directory, zero if it existed already, and <0 of failure. - -static int CreateStash(State* state, int maxblocks, const char* blockdev, char** base) { - char* dirname = NULL; - const uint8_t* digest; - int rc = -1; - int res; - int size = 0; - SHA_CTX ctx; - struct stat st; - - if (blockdev == NULL || base == NULL) { - goto csout; - } - - // Stash directory should be different for each partition to avoid conflicts - // when updating multiple partitions at the same time, so we use the hash of - // the block device name as the base directory - SHA_init(&ctx); - SHA_update(&ctx, blockdev, strlen(blockdev)); - digest = SHA_final(&ctx); - *base = PrintSha1(digest); - - if (*base == NULL) { - goto csout; - } - - dirname = GetStashFileName(*base, NULL, NULL); - - if (dirname == NULL) { - goto csout; - } - - res = stat(dirname, &st); - - if (res == -1 && errno != ENOENT) { - ErrorAbort(state, "stat \"%s\" failed: %s\n", dirname, strerror(errno)); - goto csout; - } else if (res != 0) { - fprintf(stderr, "creating stash %s\n", dirname); - res = mkdir(dirname, STASH_DIRECTORY_MODE); - - if (res != 0) { - ErrorAbort(state, "mkdir \"%s\" failed: %s\n", dirname, strerror(errno)); - goto csout; - } - - if (CacheSizeCheck(maxblocks * BLOCKSIZE) != 0) { - ErrorAbort(state, "not enough space for stash\n"); - goto csout; - } - - rc = 1; // Created directory - goto csout; - } - - fprintf(stderr, "using existing stash %s\n", dirname); - - // If the directory already exists, calculate the space already allocated to - // stash files and check if there's enough for all required blocks. Delete any - // partially completed stash files first. - - EnumerateStash(dirname, DeletePartial, NULL); - EnumerateStash(dirname, UpdateFileSize, &size); - - size = (maxblocks * BLOCKSIZE) - size; - - if (size > 0 && CacheSizeCheck(size) != 0) { - ErrorAbort(state, "not enough space for stash (%d more needed)\n", size); - goto csout; - } - - rc = 0; // Using existing directory - -csout: - if (dirname) { - free(dirname); - } - - return rc; -} - -static int SaveStash(const char* base, char** wordsave, uint8_t** buffer, size_t* buffer_alloc, - int fd, int usehash, int* isunresumable) { - char *id = NULL; - int res = -1; - int blocks = 0; - - if (!wordsave || !buffer || !buffer_alloc || !isunresumable) { - return -1; - } - - id = strtok_r(NULL, " ", wordsave); - - if (id == NULL) { - fprintf(stderr, "missing id field in stash command\n"); - return -1; - } - - if (usehash && LoadStash(base, id, 1, &blocks, buffer, buffer_alloc, 0) == 0) { - // Stash file already exists and has expected contents. Do not - // read from source again, as the source may have been already - // overwritten during a previous attempt. - return 0; - } - - if (LoadSrcTgtVersion1(wordsave, NULL, &blocks, buffer, buffer_alloc, fd) == -1) { - return -1; - } - - if (usehash && VerifyBlocks(id, *buffer, blocks, 1) != 0) { - // Source blocks have unexpected contents. If we actually need this - // data later, this is an unrecoverable error. However, the command - // that uses the data may have already completed previously, so the - // possible failure will occur during source block verification. - fprintf(stderr, "failed to load source blocks for stash %s\n", id); - return 0; - } - - fprintf(stderr, "stashing %d blocks to %s\n", blocks, id); - return WriteStash(base, id, blocks, *buffer, 0, NULL); -} - -static int FreeStash(const char* base, const char* id) { - char *fn = NULL; - - if (base == NULL || id == NULL) { - return -1; - } - - fn = GetStashFileName(base, id, NULL); - - if (fn == NULL) { - return -1; - } - - DeleteFile(fn, NULL); - free(fn); - - return 0; -} - -static void MoveRange(uint8_t* dest, RangeSet* locs, const uint8_t* source) { - // source contains packed data, which we want to move to the - // locations given in *locs in the dest buffer. source and dest - // may be the same buffer. - - int start = locs->size; - int i; - for (i = locs->count-1; i >= 0; --i) { - int blocks = locs->pos[i*2+1] - locs->pos[i*2]; - start -= blocks; - memmove(dest + (locs->pos[i*2] * BLOCKSIZE), source + (start * BLOCKSIZE), - blocks * BLOCKSIZE); - } -} - -// Do a source/target load for move/bsdiff/imgdiff in version 2. -// 'wordsave' is the save_ptr of a strtok_r()-in-progress. We expect -// to parse the remainder of the string as one of: -// -// <tgt_range> <src_block_count> <src_range> -// (loads data from source image only) -// -// <tgt_range> <src_block_count> - <[stash_id:stash_range] ...> -// (loads data from stashes only) -// -// <tgt_range> <src_block_count> <src_range> <src_loc> <[stash_id:stash_range] ...> -// (loads data from both source image and stashes) -// -// On return, buffer is filled with the loaded source data (rearranged -// and combined with stashed data as necessary). buffer may be -// reallocated if needed to accommodate the source data. *tgt is the -// target RangeSet. Any stashes required are loaded using LoadStash. - -static int LoadSrcTgtVersion2(char** wordsave, RangeSet** tgt, int* src_blocks, - uint8_t** buffer, size_t* buffer_alloc, int fd, - const char* stashbase, int* overlap) { - char* word; - char* colonsave; - char* colon; - int id; - int res; - RangeSet* locs; - size_t stashalloc = 0; - uint8_t* stash = NULL; - - if (tgt != NULL) { - word = strtok_r(NULL, " ", wordsave); - *tgt = parse_range(word); - } - - word = strtok_r(NULL, " ", wordsave); - *src_blocks = strtol(word, NULL, 0); - - allocate(*src_blocks * BLOCKSIZE, buffer, buffer_alloc); - - word = strtok_r(NULL, " ", wordsave); - if (word[0] == '-' && word[1] == '\0') { - // no source ranges, only stashes - } else { - RangeSet* src = parse_range(word); - res = ReadBlocks(src, *buffer, fd); - - if (overlap && tgt) { - *overlap = range_overlaps(src, *tgt); - } - - free(src); - - if (res == -1) { - return -1; - } - - word = strtok_r(NULL, " ", wordsave); - if (word == NULL) { - // no stashes, only source range - return 0; - } - - locs = parse_range(word); - MoveRange(*buffer, locs, *buffer); - free(locs); - } - - while ((word = strtok_r(NULL, " ", wordsave)) != NULL) { - // Each word is a an index into the stash table, a colon, and - // then a rangeset describing where in the source block that - // stashed data should go. - colonsave = NULL; - colon = strtok_r(word, ":", &colonsave); - - res = LoadStash(stashbase, colon, 0, NULL, &stash, &stashalloc, 1); - - if (res == -1) { - // These source blocks will fail verification if used later, but we - // will let the caller decide if this is a fatal failure - fprintf(stderr, "failed to load stash %s\n", colon); - continue; - } - - colon = strtok_r(NULL, ":", &colonsave); - locs = parse_range(colon); - - MoveRange(*buffer, locs, stash); - free(locs); - } - - if (stash) { - free(stash); - } - - return 0; -} - -// Parameters for transfer list command functions -typedef struct { - char* cmdname; - char* cpos; - char* freestash; - char* stashbase; - int canwrite; - int createdstash; - int fd; - int foundwrites; - int isunresumable; - int version; - int written; - NewThreadInfo nti; - pthread_t thread; - size_t bufsize; - uint8_t* buffer; - uint8_t* patch_start; -} CommandParameters; - -// Do a source/target load for move/bsdiff/imgdiff in version 3. -// -// Parameters are the same as for LoadSrcTgtVersion2, except for 'onehash', which -// tells the function whether to expect separate source and targe block hashes, or -// if they are both the same and only one hash should be expected, and -// 'isunresumable', which receives a non-zero value if block verification fails in -// a way that the update cannot be resumed anymore. -// -// If the function is unable to load the necessary blocks or their contents don't -// match the hashes, the return value is -1 and the command should be aborted. -// -// If the return value is 1, the command has already been completed according to -// the contents of the target blocks, and should not be performed again. -// -// If the return value is 0, source blocks have expected content and the command -// can be performed. - -static int LoadSrcTgtVersion3(CommandParameters* params, RangeSet** tgt, int* src_blocks, - int onehash, int* overlap) { - char* srchash = NULL; - char* tgthash = NULL; - int stash_exists = 0; - int overlap_blocks = 0; - int rc = -1; - uint8_t* tgtbuffer = NULL; - - if (!params|| !tgt || !src_blocks || !overlap) { - goto v3out; - } - - srchash = strtok_r(NULL, " ", ¶ms->cpos); - - if (srchash == NULL) { - fprintf(stderr, "missing source hash\n"); - goto v3out; - } - - if (onehash) { - tgthash = srchash; - } else { - tgthash = strtok_r(NULL, " ", ¶ms->cpos); - - if (tgthash == NULL) { - fprintf(stderr, "missing target hash\n"); - goto v3out; - } - } - - if (LoadSrcTgtVersion2(¶ms->cpos, tgt, src_blocks, ¶ms->buffer, ¶ms->bufsize, - params->fd, params->stashbase, overlap) == -1) { - goto v3out; - } - - tgtbuffer = (uint8_t*) malloc((*tgt)->size * BLOCKSIZE); - - if (tgtbuffer == NULL) { - fprintf(stderr, "failed to allocate %d bytes\n", (*tgt)->size * BLOCKSIZE); - goto v3out; - } - - if (ReadBlocks(*tgt, tgtbuffer, params->fd) == -1) { - goto v3out; - } - - if (VerifyBlocks(tgthash, tgtbuffer, (*tgt)->size, 0) == 0) { - // Target blocks already have expected content, command should be skipped - rc = 1; - goto v3out; - } - - if (VerifyBlocks(srchash, params->buffer, *src_blocks, 1) == 0) { - // If source and target blocks overlap, stash the source blocks so we can - // resume from possible write errors - if (*overlap) { - fprintf(stderr, "stashing %d overlapping blocks to %s\n", *src_blocks, - srchash); - - if (WriteStash(params->stashbase, srchash, *src_blocks, params->buffer, 1, - &stash_exists) != 0) { - fprintf(stderr, "failed to stash overlapping source blocks\n"); - goto v3out; - } - - // Can be deleted when the write has completed - if (!stash_exists) { - params->freestash = srchash; - } - } - - // Source blocks have expected content, command can proceed - rc = 0; - goto v3out; - } - - if (*overlap && LoadStash(params->stashbase, srchash, 1, NULL, ¶ms->buffer, - ¶ms->bufsize, 1) == 0) { - // Overlapping source blocks were previously stashed, command can proceed. - // We are recovering from an interrupted command, so we don't know if the - // stash can safely be deleted after this command. - rc = 0; - goto v3out; - } - - // Valid source data not available, update cannot be resumed - fprintf(stderr, "partition has unexpected contents\n"); - params->isunresumable = 1; - -v3out: - if (tgtbuffer) { - free(tgtbuffer); - } - - return rc; -} - -static int PerformCommandMove(CommandParameters* params) { - int blocks = 0; - int overlap = 0; - int rc = -1; - int status = 0; - RangeSet* tgt = NULL; - - if (!params) { - goto pcmout; - } - - if (params->version == 1) { - status = LoadSrcTgtVersion1(¶ms->cpos, &tgt, &blocks, ¶ms->buffer, - ¶ms->bufsize, params->fd); - } else if (params->version == 2) { - status = LoadSrcTgtVersion2(¶ms->cpos, &tgt, &blocks, ¶ms->buffer, - ¶ms->bufsize, params->fd, params->stashbase, NULL); - } else if (params->version >= 3) { - status = LoadSrcTgtVersion3(params, &tgt, &blocks, 1, &overlap); - } - - if (status == -1) { - fprintf(stderr, "failed to read blocks for move\n"); - goto pcmout; - } - - if (status == 0) { - params->foundwrites = 1; - } else if (params->foundwrites) { - fprintf(stderr, "warning: commands executed out of order [%s]\n", params->cmdname); - } - - if (params->canwrite) { - if (status == 0) { - fprintf(stderr, " moving %d blocks\n", blocks); - - if (WriteBlocks(tgt, params->buffer, params->fd) == -1) { - goto pcmout; - } - } else { - fprintf(stderr, "skipping %d already moved blocks\n", blocks); - } - - } - - if (params->freestash) { - FreeStash(params->stashbase, params->freestash); - params->freestash = NULL; - } - - params->written += tgt->size; - rc = 0; - -pcmout: - if (tgt) { - free(tgt); - } - - return rc; -} - -static int PerformCommandStash(CommandParameters* params) { - if (!params) { - return -1; - } - - return SaveStash(params->stashbase, ¶ms->cpos, ¶ms->buffer, ¶ms->bufsize, - params->fd, (params->version >= 3), ¶ms->isunresumable); -} - -static int PerformCommandFree(CommandParameters* params) { - if (!params) { - return -1; - } - - if (params->createdstash || params->canwrite) { - return FreeStash(params->stashbase, params->cpos); - } - - return 0; -} - -static int PerformCommandZero(CommandParameters* params) { - char* range = NULL; - int i; - int j; - int rc = -1; - RangeSet* tgt = NULL; - - if (!params) { - goto pczout; - } - - range = strtok_r(NULL, " ", ¶ms->cpos); - - if (range == NULL) { - fprintf(stderr, "missing target blocks for zero\n"); - goto pczout; - } - - tgt = parse_range(range); - - fprintf(stderr, " zeroing %d blocks\n", tgt->size); - - allocate(BLOCKSIZE, ¶ms->buffer, ¶ms->bufsize); - memset(params->buffer, 0, BLOCKSIZE); - - if (params->canwrite) { - for (i = 0; i < tgt->count; ++i) { - if (!check_lseek(params->fd, (off64_t) tgt->pos[i * 2] * BLOCKSIZE, SEEK_SET)) { - goto pczout; - } - - for (j = tgt->pos[i * 2]; j < tgt->pos[i * 2 + 1]; ++j) { - if (write_all(params->fd, params->buffer, BLOCKSIZE) == -1) { - goto pczout; - } - } - } - } - - if (params->cmdname[0] == 'z') { - // Update only for the zero command, as the erase command will call - // this if DEBUG_ERASE is defined. - params->written += tgt->size; - } - - rc = 0; - -pczout: - if (tgt) { - free(tgt); - } - - return rc; -} - -static int PerformCommandNew(CommandParameters* params) { - char* range = NULL; - int rc = -1; - RangeSet* tgt = NULL; - RangeSinkState rss; - - if (!params) { - goto pcnout; - } - - range = strtok_r(NULL, " ", ¶ms->cpos); - - if (range == NULL) { - goto pcnout; - } - - tgt = parse_range(range); - - if (params->canwrite) { - fprintf(stderr, " writing %d blocks of new data\n", tgt->size); - - rss.fd = params->fd; - rss.tgt = tgt; - rss.p_block = 0; - rss.p_remain = (tgt->pos[1] - tgt->pos[0]) * BLOCKSIZE; - - if (!check_lseek(params->fd, (off64_t) tgt->pos[0] * BLOCKSIZE, SEEK_SET)) { - goto pcnout; - } - - pthread_mutex_lock(¶ms->nti.mu); - params->nti.rss = &rss; - pthread_cond_broadcast(¶ms->nti.cv); - - while (params->nti.rss) { - pthread_cond_wait(¶ms->nti.cv, ¶ms->nti.mu); - } - - pthread_mutex_unlock(¶ms->nti.mu); - } - - params->written += tgt->size; - rc = 0; - -pcnout: - if (tgt) { - free(tgt); - } - - return rc; -} - -static int PerformCommandDiff(CommandParameters* params) { - char* logparams = NULL; - char* value = NULL; - int blocks = 0; - int overlap = 0; - int rc = -1; - int status = 0; - RangeSet* tgt = NULL; - RangeSinkState rss; - size_t len = 0; - size_t offset = 0; - Value patch_value; - - if (!params) { - goto pcdout; - } - - logparams = strdup(params->cpos); - value = strtok_r(NULL, " ", ¶ms->cpos); - - if (value == NULL) { - fprintf(stderr, "missing patch offset for %s\n", params->cmdname); - goto pcdout; - } - - offset = strtoul(value, NULL, 0); - - value = strtok_r(NULL, " ", ¶ms->cpos); - - if (value == NULL) { - fprintf(stderr, "missing patch length for %s\n", params->cmdname); - goto pcdout; - } - - len = strtoul(value, NULL, 0); - - if (params->version == 1) { - status = LoadSrcTgtVersion1(¶ms->cpos, &tgt, &blocks, ¶ms->buffer, - ¶ms->bufsize, params->fd); - } else if (params->version == 2) { - status = LoadSrcTgtVersion2(¶ms->cpos, &tgt, &blocks, ¶ms->buffer, - ¶ms->bufsize, params->fd, params->stashbase, NULL); - } else if (params->version >= 3) { - status = LoadSrcTgtVersion3(params, &tgt, &blocks, 0, &overlap); - } - - if (status == -1) { - fprintf(stderr, "failed to read blocks for diff\n"); - goto pcdout; - } - - if (status == 0) { - params->foundwrites = 1; - } else if (params->foundwrites) { - fprintf(stderr, "warning: commands executed out of order [%s]\n", params->cmdname); - } - - if (params->canwrite) { - if (status == 0) { - fprintf(stderr, "patching %d blocks to %d\n", blocks, tgt->size); - - patch_value.type = VAL_BLOB; - patch_value.size = len; - patch_value.data = (char*) (params->patch_start + offset); - - rss.fd = params->fd; - rss.tgt = tgt; - rss.p_block = 0; - rss.p_remain = (tgt->pos[1] - tgt->pos[0]) * BLOCKSIZE; - - if (!check_lseek(params->fd, (off64_t) tgt->pos[0] * BLOCKSIZE, SEEK_SET)) { - goto pcdout; - } - - if (params->cmdname[0] == 'i') { // imgdiff - ApplyImagePatch(params->buffer, blocks * BLOCKSIZE, &patch_value, - &RangeSinkWrite, &rss, NULL, NULL); - } else { - ApplyBSDiffPatch(params->buffer, blocks * BLOCKSIZE, &patch_value, - 0, &RangeSinkWrite, &rss, NULL); - } - - // We expect the output of the patcher to fill the tgt ranges exactly. - if (rss.p_block != tgt->count || rss.p_remain != 0) { - fprintf(stderr, "range sink underrun?\n"); - } - } else { - fprintf(stderr, "skipping %d blocks already patched to %d [%s]\n", - blocks, tgt->size, logparams); - } - } - - if (params->freestash) { - FreeStash(params->stashbase, params->freestash); - params->freestash = NULL; - } - - params->written += tgt->size; - rc = 0; - -pcdout: - if (logparams) { - free(logparams); - } - - if (tgt) { - free(tgt); - } - - return rc; -} - -static int PerformCommandErase(CommandParameters* params) { - char* range = NULL; - int i; - int rc = -1; - RangeSet* tgt = NULL; - struct stat st; - uint64_t blocks[2]; - - if (DEBUG_ERASE) { - return PerformCommandZero(params); - } - - if (!params) { - goto pceout; - } - - if (fstat(params->fd, &st) == -1) { - fprintf(stderr, "failed to fstat device to erase: %s\n", strerror(errno)); - goto pceout; - } - - if (!S_ISBLK(st.st_mode)) { - fprintf(stderr, "not a block device; skipping erase\n"); - goto pceout; - } - - range = strtok_r(NULL, " ", ¶ms->cpos); - - if (range == NULL) { - fprintf(stderr, "missing target blocks for zero\n"); - goto pceout; - } - - tgt = parse_range(range); - - if (params->canwrite) { - fprintf(stderr, " erasing %d blocks\n", tgt->size); - - for (i = 0; i < tgt->count; ++i) { - // offset in bytes - blocks[0] = tgt->pos[i * 2] * (uint64_t) BLOCKSIZE; - // length in bytes - blocks[1] = (tgt->pos[i * 2 + 1] - tgt->pos[i * 2]) * (uint64_t) BLOCKSIZE; - - if (ioctl(params->fd, BLKDISCARD, &blocks) == -1) { - fprintf(stderr, "BLKDISCARD ioctl failed: %s\n", strerror(errno)); - goto pceout; - } - } - } - - rc = 0; - -pceout: - if (tgt) { - free(tgt); - } - - return rc; -} - -// Definitions for transfer list command functions -typedef int (*CommandFunction)(CommandParameters*); - -typedef struct { - const char* name; - CommandFunction f; -} Command; - -// CompareCommands and CompareCommandNames are for the hash table - -static int CompareCommands(const void* c1, const void* c2) { - return strcmp(((const Command*) c1)->name, ((const Command*) c2)->name); -} - -static int CompareCommandNames(const void* c1, const void* c2) { - return strcmp(((const Command*) c1)->name, (const char*) c2); -} - -// HashString is used to hash command names for the hash table - -static unsigned int HashString(const char *s) { - unsigned int hash = 0; - if (s) { - while (*s) { - hash = hash * 33 + *s++; - } - } - return hash; -} - -// args: -// - block device (or file) to modify in-place -// - transfer list (blob) -// - new data stream (filename within package.zip) -// - patch stream (filename within package.zip, must be uncompressed) - -static Value* PerformBlockImageUpdate(const char* name, State* state, int argc, Expr* argv[], - const Command* commands, int cmdcount, int dryrun) { - - char* line = NULL; - char* linesave = NULL; - char* logcmd = NULL; - char* transfer_list = NULL; - CommandParameters params; - const Command* cmd = NULL; - const ZipEntry* new_entry = NULL; - const ZipEntry* patch_entry = NULL; - FILE* cmd_pipe = NULL; - HashTable* cmdht = NULL; - int i; - int res; - int rc = -1; - int stash_max_blocks = 0; - int total_blocks = 0; - pthread_attr_t attr; - unsigned int cmdhash; - UpdaterInfo* ui = NULL; - Value* blockdev_filename = NULL; - Value* new_data_fn = NULL; - Value* patch_data_fn = NULL; - Value* transfer_list_value = NULL; - ZipArchive* za = NULL; - - memset(¶ms, 0, sizeof(params)); - params.canwrite = !dryrun; - - fprintf(stderr, "performing %s\n", dryrun ? "verification" : "update"); - - if (ReadValueArgs(state, argv, 4, &blockdev_filename, &transfer_list_value, - &new_data_fn, &patch_data_fn) < 0) { - goto pbiudone; - } - - if (blockdev_filename->type != VAL_STRING) { - ErrorAbort(state, "blockdev_filename argument to %s must be string", name); - goto pbiudone; - } - if (transfer_list_value->type != VAL_BLOB) { - ErrorAbort(state, "transfer_list argument to %s must be blob", name); - goto pbiudone; - } - if (new_data_fn->type != VAL_STRING) { - ErrorAbort(state, "new_data_fn argument to %s must be string", name); - goto pbiudone; - } - if (patch_data_fn->type != VAL_STRING) { - ErrorAbort(state, "patch_data_fn argument to %s must be string", name); - goto pbiudone; - } - - ui = (UpdaterInfo*) state->cookie; - - if (ui == NULL) { - goto pbiudone; - } - - cmd_pipe = ui->cmd_pipe; - za = ui->package_zip; - - if (cmd_pipe == NULL || za == NULL) { - goto pbiudone; - } - - patch_entry = mzFindZipEntry(za, patch_data_fn->data); - - if (patch_entry == NULL) { - fprintf(stderr, "%s(): no file \"%s\" in package", name, patch_data_fn->data); - goto pbiudone; - } - - params.patch_start = ui->package_zip_addr + mzGetZipEntryOffset(patch_entry); - new_entry = mzFindZipEntry(za, new_data_fn->data); - - if (new_entry == NULL) { - fprintf(stderr, "%s(): no file \"%s\" in package", name, new_data_fn->data); - goto pbiudone; - } - - params.fd = TEMP_FAILURE_RETRY(open(blockdev_filename->data, O_RDWR)); - - if (params.fd == -1) { - fprintf(stderr, "open \"%s\" failed: %s\n", blockdev_filename->data, strerror(errno)); - goto pbiudone; - } - - if (params.canwrite) { - params.nti.za = za; - params.nti.entry = new_entry; - - pthread_mutex_init(¶ms.nti.mu, NULL); - pthread_cond_init(¶ms.nti.cv, NULL); - pthread_attr_init(&attr); - pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); - - int error = pthread_create(¶ms.thread, &attr, unzip_new_data, ¶ms.nti); - if (error != 0) { - fprintf(stderr, "pthread_create failed: %s\n", strerror(error)); - goto pbiudone; - } - } - - // The data in transfer_list_value is not necessarily null-terminated, so we need - // to copy it to a new buffer and add the null that strtok_r will need. - transfer_list = malloc(transfer_list_value->size + 1); - - if (transfer_list == NULL) { - fprintf(stderr, "failed to allocate %zd bytes for transfer list\n", - transfer_list_value->size + 1); - goto pbiudone; - } - - memcpy(transfer_list, transfer_list_value->data, transfer_list_value->size); - transfer_list[transfer_list_value->size] = '\0'; - - // First line in transfer list is the version number - line = strtok_r(transfer_list, "\n", &linesave); - params.version = strtol(line, NULL, 0); - - if (params.version < 1 || params.version > 3) { - fprintf(stderr, "unexpected transfer list version [%s]\n", line); - goto pbiudone; - } - - fprintf(stderr, "blockimg version is %d\n", params.version); - - // Second line in transfer list is the total number of blocks we expect to write - line = strtok_r(NULL, "\n", &linesave); - total_blocks = strtol(line, NULL, 0); - - if (total_blocks < 0) { - ErrorAbort(state, "unexpected block count [%s]\n", line); - goto pbiudone; - } else if (total_blocks == 0) { - rc = 0; - goto pbiudone; - } - - if (params.version >= 2) { - // Third line is how many stash entries are needed simultaneously - line = strtok_r(NULL, "\n", &linesave); - fprintf(stderr, "maximum stash entries %s\n", line); - - // Fourth line is the maximum number of blocks that will be stashed simultaneously - line = strtok_r(NULL, "\n", &linesave); - stash_max_blocks = strtol(line, NULL, 0); - - if (stash_max_blocks < 0) { - ErrorAbort(state, "unexpected maximum stash blocks [%s]\n", line); - goto pbiudone; - } - - if (stash_max_blocks >= 0) { - res = CreateStash(state, stash_max_blocks, blockdev_filename->data, - ¶ms.stashbase); - - if (res == -1) { - goto pbiudone; - } - - params.createdstash = res; - } - } - - // Build a hash table of the available commands - cmdht = mzHashTableCreate(cmdcount, NULL); - - for (i = 0; i < cmdcount; ++i) { - cmdhash = HashString(commands[i].name); - mzHashTableLookup(cmdht, cmdhash, (void*) &commands[i], CompareCommands, true); - } - - // Subsequent lines are all individual transfer commands - for (line = strtok_r(NULL, "\n", &linesave); line; - line = strtok_r(NULL, "\n", &linesave)) { - - logcmd = strdup(line); - params.cmdname = strtok_r(line, " ", ¶ms.cpos); - - if (params.cmdname == NULL) { - fprintf(stderr, "missing command [%s]\n", line); - goto pbiudone; - } - - cmdhash = HashString(params.cmdname); - cmd = (const Command*) mzHashTableLookup(cmdht, cmdhash, params.cmdname, - CompareCommandNames, false); - - if (cmd == NULL) { - fprintf(stderr, "unexpected command [%s]\n", params.cmdname); - goto pbiudone; - } - - if (cmd->f != NULL && cmd->f(¶ms) == -1) { - fprintf(stderr, "failed to execute command [%s]\n", - logcmd ? logcmd : params.cmdname); - goto pbiudone; - } - - if (logcmd) { - free(logcmd); - logcmd = NULL; - } - - if (params.canwrite) { - fprintf(cmd_pipe, "set_progress %.4f\n", (double) params.written / total_blocks); - fflush(cmd_pipe); - } - } - - if (params.canwrite) { - pthread_join(params.thread, NULL); - - fprintf(stderr, "wrote %d blocks; expected %d\n", params.written, total_blocks); - fprintf(stderr, "max alloc needed was %zu\n", params.bufsize); - - // Delete stash only after successfully completing the update, as it - // may contain blocks needed to complete the update later. - DeleteStash(params.stashbase); - } else { - fprintf(stderr, "verified partition contents; update may be resumed\n"); - } - - rc = 0; - -pbiudone: - if (params.fd != -1) { - if (fsync(params.fd) == -1) { - fprintf(stderr, "fsync failed: %s\n", strerror(errno)); - } - close(params.fd); - } - - if (logcmd) { - free(logcmd); - } - - if (cmdht) { - mzHashTableFree(cmdht); - } - - if (params.buffer) { - free(params.buffer); - } - - if (transfer_list) { - free(transfer_list); - } - - if (blockdev_filename) { - FreeValue(blockdev_filename); - } - - if (transfer_list_value) { - FreeValue(transfer_list_value); - } - - if (new_data_fn) { - FreeValue(new_data_fn); - } - - if (patch_data_fn) { - FreeValue(patch_data_fn); - } - - // Only delete the stash if the update cannot be resumed, or it's - // a verification run and we created the stash. - if (params.isunresumable || (!params.canwrite && params.createdstash)) { - DeleteStash(params.stashbase); - } - - if (params.stashbase) { - free(params.stashbase); - } - - return StringValue(rc == 0 ? strdup("t") : strdup("")); -} - -// The transfer list is a text file containing commands to -// transfer data from one place to another on the target -// partition. We parse it and execute the commands in order: -// -// zero [rangeset] -// - fill the indicated blocks with zeros -// -// new [rangeset] -// - fill the blocks with data read from the new_data file -// -// erase [rangeset] -// - mark the given blocks as empty -// -// move <...> -// bsdiff <patchstart> <patchlen> <...> -// imgdiff <patchstart> <patchlen> <...> -// - read the source blocks, apply a patch (or not in the -// case of move), write result to target blocks. bsdiff or -// imgdiff specifies the type of patch; move means no patch -// at all. -// -// The format of <...> differs between versions 1 and 2; -// see the LoadSrcTgtVersion{1,2}() functions for a -// description of what's expected. -// -// stash <stash_id> <src_range> -// - (version 2+ only) load the given source range and stash -// the data in the given slot of the stash table. -// -// The creator of the transfer list will guarantee that no block -// is read (ie, used as the source for a patch or move) after it -// has been written. -// -// In version 2, the creator will guarantee that a given stash is -// loaded (with a stash command) before it's used in a -// move/bsdiff/imgdiff command. -// -// Within one command the source and target ranges may overlap so -// in general we need to read the entire source into memory before -// writing anything to the target blocks. -// -// All the patch data is concatenated into one patch_data file in -// the update package. It must be stored uncompressed because we -// memory-map it in directly from the archive. (Since patches are -// already compressed, we lose very little by not compressing -// their concatenation.) -// -// In version 3, commands that read data from the partition (i.e. -// move/bsdiff/imgdiff/stash) have one or more additional hashes -// before the range parameters, which are used to check if the -// command has already been completed and verify the integrity of -// the source data. - -Value* BlockImageVerifyFn(const char* name, State* state, int argc, Expr* argv[]) { - // Commands which are not tested are set to NULL to skip them completely - const Command commands[] = { - { "bsdiff", PerformCommandDiff }, - { "erase", NULL }, - { "free", PerformCommandFree }, - { "imgdiff", PerformCommandDiff }, - { "move", PerformCommandMove }, - { "new", NULL }, - { "stash", PerformCommandStash }, - { "zero", NULL } - }; - - // Perform a dry run without writing to test if an update can proceed - return PerformBlockImageUpdate(name, state, argc, argv, commands, - sizeof(commands) / sizeof(commands[0]), 1); -} - -Value* BlockImageUpdateFn(const char* name, State* state, int argc, Expr* argv[]) { - const Command commands[] = { - { "bsdiff", PerformCommandDiff }, - { "erase", PerformCommandErase }, - { "free", PerformCommandFree }, - { "imgdiff", PerformCommandDiff }, - { "move", PerformCommandMove }, - { "new", PerformCommandNew }, - { "stash", PerformCommandStash }, - { "zero", PerformCommandZero } - }; - - return PerformBlockImageUpdate(name, state, argc, argv, commands, - sizeof(commands) / sizeof(commands[0]), 0); -} - -Value* RangeSha1Fn(const char* name, State* state, int argc, Expr* argv[]) { - Value* blockdev_filename; - Value* ranges; - const uint8_t* digest = NULL; - if (ReadValueArgs(state, argv, 2, &blockdev_filename, &ranges) < 0) { - return NULL; - } - - if (blockdev_filename->type != VAL_STRING) { - ErrorAbort(state, "blockdev_filename argument to %s must be string", name); - goto done; - } - if (ranges->type != VAL_STRING) { - ErrorAbort(state, "ranges argument to %s must be string", name); - goto done; - } - - int fd = open(blockdev_filename->data, O_RDWR); - if (fd < 0) { - ErrorAbort(state, "open \"%s\" failed: %s", blockdev_filename->data, strerror(errno)); - goto done; - } - - RangeSet* rs = parse_range(ranges->data); - uint8_t buffer[BLOCKSIZE]; - - SHA_CTX ctx; - SHA_init(&ctx); - - int i, j; - for (i = 0; i < rs->count; ++i) { - if (!check_lseek(fd, (off64_t)rs->pos[i*2] * BLOCKSIZE, SEEK_SET)) { - ErrorAbort(state, "failed to seek %s: %s", blockdev_filename->data, - strerror(errno)); - goto done; - } - - for (j = rs->pos[i*2]; j < rs->pos[i*2+1]; ++j) { - if (read_all(fd, buffer, BLOCKSIZE) == -1) { - ErrorAbort(state, "failed to read %s: %s", blockdev_filename->data, - strerror(errno)); - goto done; - } - - SHA_update(&ctx, buffer, BLOCKSIZE); - } - } - digest = SHA_final(&ctx); - close(fd); - - done: - FreeValue(blockdev_filename); - FreeValue(ranges); - if (digest == NULL) { - return StringValue(strdup("")); - } else { - return StringValue(PrintSha1(digest)); - } -} - -void RegisterBlockImageFunctions() { - RegisterFunction("block_image_verify", BlockImageVerifyFn); - RegisterFunction("block_image_update", BlockImageUpdateFn); - RegisterFunction("range_sha1", RangeSha1Fn); -} diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp new file mode 100644 index 000000000..f7955566d --- /dev/null +++ b/updater/blockimg.cpp @@ -0,0 +1,1912 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <ctype.h> +#include <errno.h> +#include <dirent.h> +#include <fcntl.h> +#include <inttypes.h> +#include <linux/fs.h> +#include <pthread.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/ioctl.h> +#include <time.h> +#include <unistd.h> +#include <fec/io.h> + +#include <map> +#include <memory> +#include <string> +#include <vector> + +#include <android-base/parseint.h> +#include <android-base/strings.h> + +#include "applypatch/applypatch.h" +#include "edify/expr.h" +#include "error_code.h" +#include "install.h" +#include "openssl/sha.h" +#include "minzip/Hash.h" +#include "ota_io.h" +#include "print_sha1.h" +#include "unique_fd.h" +#include "updater.h" + +#define BLOCKSIZE 4096 + +// Set this to 0 to interpret 'erase' transfers to mean do a +// BLKDISCARD ioctl (the normal behavior). Set to 1 to interpret +// erase to mean fill the region with zeroes. +#define DEBUG_ERASE 0 + +#define STASH_DIRECTORY_BASE "/cache/recovery" +#define STASH_DIRECTORY_MODE 0700 +#define STASH_FILE_MODE 0600 + +struct RangeSet { + size_t count; // Limit is INT_MAX. + size_t size; + std::vector<size_t> pos; // Actual limit is INT_MAX. +}; + +static CauseCode failure_type = kNoCause; +static bool is_retry = false; +static std::map<std::string, RangeSet> stash_map; + +static void parse_range(const std::string& range_text, RangeSet& rs) { + + std::vector<std::string> pieces = android::base::Split(range_text, ","); + if (pieces.size() < 3) { + goto err; + } + + size_t num; + if (!android::base::ParseUint(pieces[0].c_str(), &num, static_cast<size_t>(INT_MAX))) { + goto err; + } + + if (num == 0 || num % 2) { + goto err; // must be even + } else if (num != pieces.size() - 1) { + goto err; + } + + rs.pos.resize(num); + rs.count = num / 2; + rs.size = 0; + + for (size_t i = 0; i < num; i += 2) { + if (!android::base::ParseUint(pieces[i+1].c_str(), &rs.pos[i], + static_cast<size_t>(INT_MAX))) { + goto err; + } + + if (!android::base::ParseUint(pieces[i+2].c_str(), &rs.pos[i+1], + static_cast<size_t>(INT_MAX))) { + goto err; + } + + if (rs.pos[i] >= rs.pos[i+1]) { + goto err; // empty or negative range + } + + size_t sz = rs.pos[i+1] - rs.pos[i]; + if (rs.size > SIZE_MAX - sz) { + goto err; // overflow + } + + rs.size += sz; + } + + return; + +err: + fprintf(stderr, "failed to parse range '%s'\n", range_text.c_str()); + exit(1); +} + +static bool range_overlaps(const RangeSet& r1, const RangeSet& r2) { + for (size_t i = 0; i < r1.count; ++i) { + size_t r1_0 = r1.pos[i * 2]; + size_t r1_1 = r1.pos[i * 2 + 1]; + + for (size_t j = 0; j < r2.count; ++j) { + size_t r2_0 = r2.pos[j * 2]; + size_t r2_1 = r2.pos[j * 2 + 1]; + + if (!(r2_0 >= r1_1 || r1_0 >= r2_1)) { + return true; + } + } + } + + return false; +} + +static int read_all(int fd, uint8_t* data, size_t size) { + size_t so_far = 0; + while (so_far < size) { + ssize_t r = TEMP_FAILURE_RETRY(ota_read(fd, data+so_far, size-so_far)); + if (r == -1) { + failure_type = kFreadFailure; + fprintf(stderr, "read failed: %s\n", strerror(errno)); + return -1; + } + so_far += r; + } + return 0; +} + +static int read_all(int fd, std::vector<uint8_t>& buffer, size_t size) { + return read_all(fd, buffer.data(), size); +} + +static int write_all(int fd, const uint8_t* data, size_t size) { + size_t written = 0; + while (written < size) { + ssize_t w = TEMP_FAILURE_RETRY(ota_write(fd, data+written, size-written)); + if (w == -1) { + failure_type = kFwriteFailure; + fprintf(stderr, "write failed: %s\n", strerror(errno)); + return -1; + } + written += w; + } + + return 0; +} + +static int write_all(int fd, const std::vector<uint8_t>& buffer, size_t size) { + return write_all(fd, buffer.data(), size); +} + +static bool discard_blocks(int fd, off64_t offset, uint64_t size) { + // Don't discard blocks unless the update is a retry run. + if (!is_retry) { + return true; + } + + uint64_t args[2] = {static_cast<uint64_t>(offset), size}; + int status = ioctl(fd, BLKDISCARD, &args); + if (status == -1) { + fprintf(stderr, "BLKDISCARD ioctl failed: %s\n", strerror(errno)); + return false; + } + return true; +} + +static bool check_lseek(int fd, off64_t offset, int whence) { + off64_t rc = TEMP_FAILURE_RETRY(lseek64(fd, offset, whence)); + if (rc == -1) { + failure_type = kLseekFailure; + fprintf(stderr, "lseek64 failed: %s\n", strerror(errno)); + return false; + } + return true; +} + +static void allocate(size_t size, std::vector<uint8_t>& buffer) { + // if the buffer's big enough, reuse it. + if (size <= buffer.size()) return; + + buffer.resize(size); +} + +struct RangeSinkState { + RangeSinkState(RangeSet& rs) : tgt(rs) { }; + + int fd; + const RangeSet& tgt; + size_t p_block; + size_t p_remain; +}; + +static ssize_t RangeSinkWrite(const uint8_t* data, ssize_t size, void* token) { + RangeSinkState* rss = reinterpret_cast<RangeSinkState*>(token); + + if (rss->p_remain == 0) { + fprintf(stderr, "range sink write overrun"); + return 0; + } + + ssize_t written = 0; + while (size > 0) { + size_t write_now = size; + + if (rss->p_remain < write_now) { + write_now = rss->p_remain; + } + + if (write_all(rss->fd, data, write_now) == -1) { + break; + } + + data += write_now; + size -= write_now; + + rss->p_remain -= write_now; + written += write_now; + + if (rss->p_remain == 0) { + // move to the next block + ++rss->p_block; + if (rss->p_block < rss->tgt.count) { + rss->p_remain = (rss->tgt.pos[rss->p_block * 2 + 1] - + rss->tgt.pos[rss->p_block * 2]) * BLOCKSIZE; + + off64_t offset = static_cast<off64_t>(rss->tgt.pos[rss->p_block*2]) * BLOCKSIZE; + if (!discard_blocks(rss->fd, offset, rss->p_remain)) { + break; + } + + if (!check_lseek(rss->fd, offset, SEEK_SET)) { + break; + } + + } else { + // we can't write any more; return how many bytes have + // been written so far. + break; + } + } + } + + return written; +} + +// All of the data for all the 'new' transfers is contained in one +// file in the update package, concatenated together in the order in +// which transfers.list will need it. We want to stream it out of the +// archive (it's compressed) without writing it to a temp file, but we +// can't write each section until it's that transfer's turn to go. +// +// To achieve this, we expand the new data from the archive in a +// background thread, and block that threads 'receive uncompressed +// data' function until the main thread has reached a point where we +// want some new data to be written. We signal the background thread +// with the destination for the data and block the main thread, +// waiting for the background thread to complete writing that section. +// Then it signals the main thread to wake up and goes back to +// blocking waiting for a transfer. +// +// NewThreadInfo is the struct used to pass information back and forth +// between the two threads. When the main thread wants some data +// written, it sets rss to the destination location and signals the +// condition. When the background thread is done writing, it clears +// rss and signals the condition again. + +struct NewThreadInfo { + ZipArchive* za; + const ZipEntry* entry; + + RangeSinkState* rss; + + pthread_mutex_t mu; + pthread_cond_t cv; +}; + +static bool receive_new_data(const unsigned char* data, int size, void* cookie) { + NewThreadInfo* nti = reinterpret_cast<NewThreadInfo*>(cookie); + + while (size > 0) { + // Wait for nti->rss to be non-null, indicating some of this + // data is wanted. + pthread_mutex_lock(&nti->mu); + while (nti->rss == nullptr) { + pthread_cond_wait(&nti->cv, &nti->mu); + } + pthread_mutex_unlock(&nti->mu); + + // At this point nti->rss is set, and we own it. The main + // thread is waiting for it to disappear from nti. + ssize_t written = RangeSinkWrite(data, size, nti->rss); + data += written; + size -= written; + + if (nti->rss->p_block == nti->rss->tgt.count) { + // we have written all the bytes desired by this rss. + + pthread_mutex_lock(&nti->mu); + nti->rss = nullptr; + pthread_cond_broadcast(&nti->cv); + pthread_mutex_unlock(&nti->mu); + } + } + + return true; +} + +static void* unzip_new_data(void* cookie) { + NewThreadInfo* nti = (NewThreadInfo*) cookie; + mzProcessZipEntryContents(nti->za, nti->entry, receive_new_data, nti); + return nullptr; +} + +static int ReadBlocks(const RangeSet& src, std::vector<uint8_t>& buffer, int fd) { + size_t p = 0; + uint8_t* data = buffer.data(); + + for (size_t i = 0; i < src.count; ++i) { + if (!check_lseek(fd, (off64_t) src.pos[i * 2] * BLOCKSIZE, SEEK_SET)) { + return -1; + } + + size_t size = (src.pos[i * 2 + 1] - src.pos[i * 2]) * BLOCKSIZE; + + if (read_all(fd, data + p, size) == -1) { + return -1; + } + + p += size; + } + + return 0; +} + +static int WriteBlocks(const RangeSet& tgt, const std::vector<uint8_t>& buffer, int fd) { + const uint8_t* data = buffer.data(); + + size_t p = 0; + for (size_t i = 0; i < tgt.count; ++i) { + off64_t offset = static_cast<off64_t>(tgt.pos[i * 2]) * BLOCKSIZE; + size_t size = (tgt.pos[i * 2 + 1] - tgt.pos[i * 2]) * BLOCKSIZE; + if (!discard_blocks(fd, offset, size)) { + return -1; + } + + if (!check_lseek(fd, offset, SEEK_SET)) { + return -1; + } + + if (write_all(fd, data + p, size) == -1) { + return -1; + } + + p += size; + } + + return 0; +} + +// Parameters for transfer list command functions +struct CommandParameters { + std::vector<std::string> tokens; + size_t cpos; + const char* cmdname; + const char* cmdline; + std::string freestash; + std::string stashbase; + bool canwrite; + int createdstash; + int fd; + bool foundwrites; + bool isunresumable; + int version; + size_t written; + size_t stashed; + NewThreadInfo nti; + pthread_t thread; + std::vector<uint8_t> buffer; + uint8_t* patch_start; +}; + +// Do a source/target load for move/bsdiff/imgdiff in version 1. +// We expect to parse the remainder of the parameter tokens as: +// +// <src_range> <tgt_range> +// +// The source range is loaded into the provided buffer, reallocating +// it to make it larger if necessary. + +static int LoadSrcTgtVersion1(CommandParameters& params, RangeSet& tgt, size_t& src_blocks, + std::vector<uint8_t>& buffer, int fd) { + + if (params.cpos + 1 >= params.tokens.size()) { + fprintf(stderr, "invalid parameters\n"); + return -1; + } + + // <src_range> + RangeSet src; + parse_range(params.tokens[params.cpos++], src); + + // <tgt_range> + parse_range(params.tokens[params.cpos++], tgt); + + allocate(src.size * BLOCKSIZE, buffer); + int rc = ReadBlocks(src, buffer, fd); + src_blocks = src.size; + + return rc; +} + +static int VerifyBlocks(const std::string& expected, const std::vector<uint8_t>& buffer, + const size_t blocks, bool printerror) { + uint8_t digest[SHA_DIGEST_LENGTH]; + const uint8_t* data = buffer.data(); + + SHA1(data, blocks * BLOCKSIZE, digest); + + std::string hexdigest = print_sha1(digest); + + if (hexdigest != expected) { + if (printerror) { + fprintf(stderr, "failed to verify blocks (expected %s, read %s)\n", + expected.c_str(), hexdigest.c_str()); + } + return -1; + } + + return 0; +} + +static std::string GetStashFileName(const std::string& base, const std::string& id, + const std::string& postfix) { + if (base.empty()) { + return ""; + } + + std::string fn(STASH_DIRECTORY_BASE); + fn += "/" + base + "/" + id + postfix; + + return fn; +} + +typedef void (*StashCallback)(const std::string&, void*); + +// Does a best effort enumeration of stash files. Ignores possible non-file +// items in the stash directory and continues despite of errors. Calls the +// 'callback' function for each file and passes 'data' to the function as a +// parameter. + +static void EnumerateStash(const std::string& dirname, StashCallback callback, void* data) { + if (dirname.empty() || callback == nullptr) { + return; + } + + std::unique_ptr<DIR, int(*)(DIR*)> directory(opendir(dirname.c_str()), closedir); + + if (directory == nullptr) { + if (errno != ENOENT) { + fprintf(stderr, "opendir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno)); + } + return; + } + + struct dirent* item; + while ((item = readdir(directory.get())) != nullptr) { + if (item->d_type != DT_REG) { + continue; + } + + std::string fn = dirname + "/" + std::string(item->d_name); + callback(fn, data); + } +} + +static void UpdateFileSize(const std::string& fn, void* data) { + if (fn.empty() || !data) { + return; + } + + struct stat sb; + if (stat(fn.c_str(), &sb) == -1) { + fprintf(stderr, "stat \"%s\" failed: %s\n", fn.c_str(), strerror(errno)); + return; + } + + int* size = reinterpret_cast<int*>(data); + *size += sb.st_size; +} + +// Deletes the stash directory and all files in it. Assumes that it only +// contains files. There is nothing we can do about unlikely, but possible +// errors, so they are merely logged. + +static void DeleteFile(const std::string& fn, void* /* data */) { + if (!fn.empty()) { + fprintf(stderr, "deleting %s\n", fn.c_str()); + + if (unlink(fn.c_str()) == -1 && errno != ENOENT) { + fprintf(stderr, "unlink \"%s\" failed: %s\n", fn.c_str(), strerror(errno)); + } + } +} + +static void DeletePartial(const std::string& fn, void* data) { + if (android::base::EndsWith(fn, ".partial")) { + DeleteFile(fn, data); + } +} + +static void DeleteStash(const std::string& base) { + if (base.empty()) { + return; + } + + fprintf(stderr, "deleting stash %s\n", base.c_str()); + + std::string dirname = GetStashFileName(base, "", ""); + EnumerateStash(dirname, DeleteFile, nullptr); + + if (rmdir(dirname.c_str()) == -1) { + if (errno != ENOENT && errno != ENOTDIR) { + fprintf(stderr, "rmdir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno)); + } + } +} + +static int LoadStash(CommandParameters& params, const std::string& base, const std::string& id, + bool verify, size_t* blocks, std::vector<uint8_t>& buffer, bool printnoent) { + // In verify mode, if source range_set was saved for the given hash, + // check contents in the source blocks first. If the check fails, + // search for the stashed files on /cache as usual. + if (!params.canwrite) { + if (stash_map.find(id) != stash_map.end()) { + const RangeSet& src = stash_map[id]; + allocate(src.size * BLOCKSIZE, buffer); + + if (ReadBlocks(src, buffer, params.fd) == -1) { + fprintf(stderr, "failed to read source blocks in stash map.\n"); + return -1; + } + if (VerifyBlocks(id, buffer, src.size, true) != 0) { + fprintf(stderr, "failed to verify loaded source blocks in stash map.\n"); + return -1; + } + return 0; + } + } + + if (base.empty()) { + return -1; + } + + size_t blockcount = 0; + + if (!blocks) { + blocks = &blockcount; + } + + std::string fn = GetStashFileName(base, id, ""); + + struct stat sb; + int res = stat(fn.c_str(), &sb); + + if (res == -1) { + if (errno != ENOENT || printnoent) { + fprintf(stderr, "stat \"%s\" failed: %s\n", fn.c_str(), strerror(errno)); + } + return -1; + } + + fprintf(stderr, " loading %s\n", fn.c_str()); + + if ((sb.st_size % BLOCKSIZE) != 0) { + fprintf(stderr, "%s size %" PRId64 " not multiple of block size %d", + fn.c_str(), static_cast<int64_t>(sb.st_size), BLOCKSIZE); + return -1; + } + + int fd = TEMP_FAILURE_RETRY(open(fn.c_str(), O_RDONLY)); + unique_fd fd_holder(fd); + + if (fd == -1) { + fprintf(stderr, "open \"%s\" failed: %s\n", fn.c_str(), strerror(errno)); + return -1; + } + + allocate(sb.st_size, buffer); + + if (read_all(fd, buffer, sb.st_size) == -1) { + return -1; + } + + *blocks = sb.st_size / BLOCKSIZE; + + if (verify && VerifyBlocks(id, buffer, *blocks, true) != 0) { + fprintf(stderr, "unexpected contents in %s\n", fn.c_str()); + DeleteFile(fn, nullptr); + return -1; + } + + return 0; +} + +static int WriteStash(const std::string& base, const std::string& id, int blocks, + std::vector<uint8_t>& buffer, bool checkspace, bool *exists) { + if (base.empty()) { + return -1; + } + + if (checkspace && CacheSizeCheck(blocks * BLOCKSIZE) != 0) { + fprintf(stderr, "not enough space to write stash\n"); + return -1; + } + + std::string fn = GetStashFileName(base, id, ".partial"); + std::string cn = GetStashFileName(base, id, ""); + + if (exists) { + struct stat sb; + int res = stat(cn.c_str(), &sb); + + if (res == 0) { + // The file already exists and since the name is the hash of the contents, + // it's safe to assume the contents are identical (accidental hash collisions + // are unlikely) + fprintf(stderr, " skipping %d existing blocks in %s\n", blocks, cn.c_str()); + *exists = true; + return 0; + } + + *exists = false; + } + + fprintf(stderr, " writing %d blocks to %s\n", blocks, cn.c_str()); + + int fd = TEMP_FAILURE_RETRY(open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC, STASH_FILE_MODE)); + unique_fd fd_holder(fd); + + if (fd == -1) { + fprintf(stderr, "failed to create \"%s\": %s\n", fn.c_str(), strerror(errno)); + return -1; + } + + if (write_all(fd, buffer, blocks * BLOCKSIZE) == -1) { + return -1; + } + + if (ota_fsync(fd) == -1) { + failure_type = kFsyncFailure; + fprintf(stderr, "fsync \"%s\" failed: %s\n", fn.c_str(), strerror(errno)); + return -1; + } + + if (rename(fn.c_str(), cn.c_str()) == -1) { + fprintf(stderr, "rename(\"%s\", \"%s\") failed: %s\n", fn.c_str(), cn.c_str(), + strerror(errno)); + return -1; + } + + std::string dname = GetStashFileName(base, "", ""); + int dfd = TEMP_FAILURE_RETRY(open(dname.c_str(), O_RDONLY | O_DIRECTORY)); + unique_fd dfd_holder(dfd); + + if (dfd == -1) { + failure_type = kFileOpenFailure; + fprintf(stderr, "failed to open \"%s\" failed: %s\n", dname.c_str(), strerror(errno)); + return -1; + } + + if (ota_fsync(dfd) == -1) { + failure_type = kFsyncFailure; + fprintf(stderr, "fsync \"%s\" failed: %s\n", dname.c_str(), strerror(errno)); + return -1; + } + + return 0; +} + +// Creates a directory for storing stash files and checks if the /cache partition +// hash enough space for the expected amount of blocks we need to store. Returns +// >0 if we created the directory, zero if it existed already, and <0 of failure. + +static int CreateStash(State* state, int maxblocks, const char* blockdev, std::string& base) { + if (blockdev == nullptr) { + return -1; + } + + // Stash directory should be different for each partition to avoid conflicts + // when updating multiple partitions at the same time, so we use the hash of + // the block device name as the base directory + uint8_t digest[SHA_DIGEST_LENGTH]; + SHA1(reinterpret_cast<const uint8_t*>(blockdev), strlen(blockdev), digest); + base = print_sha1(digest); + + std::string dirname = GetStashFileName(base, "", ""); + struct stat sb; + int res = stat(dirname.c_str(), &sb); + + if (res == -1 && errno != ENOENT) { + ErrorAbort(state, kStashCreationFailure, "stat \"%s\" failed: %s\n", + dirname.c_str(), strerror(errno)); + return -1; + } else if (res != 0) { + fprintf(stderr, "creating stash %s\n", dirname.c_str()); + res = mkdir(dirname.c_str(), STASH_DIRECTORY_MODE); + + if (res != 0) { + ErrorAbort(state, kStashCreationFailure, "mkdir \"%s\" failed: %s\n", + dirname.c_str(), strerror(errno)); + return -1; + } + + if (CacheSizeCheck(maxblocks * BLOCKSIZE) != 0) { + ErrorAbort(state, kStashCreationFailure, "not enough space for stash\n"); + return -1; + } + + return 1; // Created directory + } + + fprintf(stderr, "using existing stash %s\n", dirname.c_str()); + + // If the directory already exists, calculate the space already allocated to + // stash files and check if there's enough for all required blocks. Delete any + // partially completed stash files first. + + EnumerateStash(dirname, DeletePartial, nullptr); + int size = 0; + EnumerateStash(dirname, UpdateFileSize, &size); + + size = maxblocks * BLOCKSIZE - size; + + if (size > 0 && CacheSizeCheck(size) != 0) { + ErrorAbort(state, kStashCreationFailure, "not enough space for stash (%d more needed)\n", + size); + return -1; + } + + return 0; // Using existing directory +} + +static int SaveStash(CommandParameters& params, const std::string& base, + std::vector<uint8_t>& buffer, int fd, bool usehash) { + + // <stash_id> <src_range> + if (params.cpos + 1 >= params.tokens.size()) { + fprintf(stderr, "missing id and/or src range fields in stash command\n"); + return -1; + } + const std::string& id = params.tokens[params.cpos++]; + + size_t blocks = 0; + if (usehash && LoadStash(params, base, id, true, &blocks, buffer, false) == 0) { + // Stash file already exists and has expected contents. Do not + // read from source again, as the source may have been already + // overwritten during a previous attempt. + return 0; + } + + RangeSet src; + parse_range(params.tokens[params.cpos++], src); + + allocate(src.size * BLOCKSIZE, buffer); + if (ReadBlocks(src, buffer, fd) == -1) { + return -1; + } + blocks = src.size; + + if (usehash && VerifyBlocks(id, buffer, blocks, true) != 0) { + // Source blocks have unexpected contents. If we actually need this + // data later, this is an unrecoverable error. However, the command + // that uses the data may have already completed previously, so the + // possible failure will occur during source block verification. + fprintf(stderr, "failed to load source blocks for stash %s\n", id.c_str()); + return 0; + } + + // In verify mode, save source range_set instead of stashing blocks. + if (!params.canwrite && usehash) { + stash_map[id] = src; + return 0; + } + + fprintf(stderr, "stashing %zu blocks to %s\n", blocks, id.c_str()); + params.stashed += blocks; + return WriteStash(base, id, blocks, buffer, false, nullptr); +} + +static int FreeStash(const std::string& base, const std::string& id) { + if (base.empty() || id.empty()) { + return -1; + } + + std::string fn = GetStashFileName(base, id, ""); + DeleteFile(fn, nullptr); + + return 0; +} + +static void MoveRange(std::vector<uint8_t>& dest, const RangeSet& locs, + const std::vector<uint8_t>& source) { + // source contains packed data, which we want to move to the + // locations given in locs in the dest buffer. source and dest + // may be the same buffer. + + const uint8_t* from = source.data(); + uint8_t* to = dest.data(); + size_t start = locs.size; + for (int i = locs.count-1; i >= 0; --i) { + size_t blocks = locs.pos[i*2+1] - locs.pos[i*2]; + start -= blocks; + memmove(to + (locs.pos[i*2] * BLOCKSIZE), from + (start * BLOCKSIZE), + blocks * BLOCKSIZE); + } +} + +// Do a source/target load for move/bsdiff/imgdiff in version 2. +// We expect to parse the remainder of the parameter tokens as one of: +// +// <tgt_range> <src_block_count> <src_range> +// (loads data from source image only) +// +// <tgt_range> <src_block_count> - <[stash_id:stash_range] ...> +// (loads data from stashes only) +// +// <tgt_range> <src_block_count> <src_range> <src_loc> <[stash_id:stash_range] ...> +// (loads data from both source image and stashes) +// +// On return, buffer is filled with the loaded source data (rearranged +// and combined with stashed data as necessary). buffer may be +// reallocated if needed to accommodate the source data. *tgt is the +// target RangeSet. Any stashes required are loaded using LoadStash. + +static int LoadSrcTgtVersion2(CommandParameters& params, RangeSet& tgt, size_t& src_blocks, + std::vector<uint8_t>& buffer, int fd, const std::string& stashbase, bool* overlap) { + + // At least it needs to provide three parameters: <tgt_range>, + // <src_block_count> and "-"/<src_range>. + if (params.cpos + 2 >= params.tokens.size()) { + fprintf(stderr, "invalid parameters\n"); + return -1; + } + + // <tgt_range> + parse_range(params.tokens[params.cpos++], tgt); + + // <src_block_count> + const std::string& token = params.tokens[params.cpos++]; + if (!android::base::ParseUint(token.c_str(), &src_blocks)) { + fprintf(stderr, "invalid src_block_count \"%s\"\n", token.c_str()); + return -1; + } + + allocate(src_blocks * BLOCKSIZE, buffer); + + // "-" or <src_range> [<src_loc>] + if (params.tokens[params.cpos] == "-") { + // no source ranges, only stashes + params.cpos++; + } else { + RangeSet src; + parse_range(params.tokens[params.cpos++], src); + int res = ReadBlocks(src, buffer, fd); + + if (overlap) { + *overlap = range_overlaps(src, tgt); + } + + if (res == -1) { + return -1; + } + + if (params.cpos >= params.tokens.size()) { + // no stashes, only source range + return 0; + } + + RangeSet locs; + parse_range(params.tokens[params.cpos++], locs); + MoveRange(buffer, locs, buffer); + } + + // <[stash_id:stash_range]> + while (params.cpos < params.tokens.size()) { + // Each word is a an index into the stash table, a colon, and + // then a rangeset describing where in the source block that + // stashed data should go. + std::vector<std::string> tokens = android::base::Split(params.tokens[params.cpos++], ":"); + if (tokens.size() != 2) { + fprintf(stderr, "invalid parameter\n"); + return -1; + } + + std::vector<uint8_t> stash; + int res = LoadStash(params, stashbase, tokens[0], false, nullptr, stash, true); + + if (res == -1) { + // These source blocks will fail verification if used later, but we + // will let the caller decide if this is a fatal failure + fprintf(stderr, "failed to load stash %s\n", tokens[0].c_str()); + continue; + } + + RangeSet locs; + parse_range(tokens[1], locs); + + MoveRange(buffer, locs, stash); + } + + return 0; +} + +// Do a source/target load for move/bsdiff/imgdiff in version 3. +// +// Parameters are the same as for LoadSrcTgtVersion2, except for 'onehash', which +// tells the function whether to expect separate source and targe block hashes, or +// if they are both the same and only one hash should be expected, and +// 'isunresumable', which receives a non-zero value if block verification fails in +// a way that the update cannot be resumed anymore. +// +// If the function is unable to load the necessary blocks or their contents don't +// match the hashes, the return value is -1 and the command should be aborted. +// +// If the return value is 1, the command has already been completed according to +// the contents of the target blocks, and should not be performed again. +// +// If the return value is 0, source blocks have expected content and the command +// can be performed. + +static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t& src_blocks, + bool onehash, bool& overlap) { + + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing source hash\n"); + return -1; + } + + std::string srchash = params.tokens[params.cpos++]; + std::string tgthash; + + if (onehash) { + tgthash = srchash; + } else { + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing target hash\n"); + return -1; + } + tgthash = params.tokens[params.cpos++]; + } + + if (LoadSrcTgtVersion2(params, tgt, src_blocks, params.buffer, params.fd, params.stashbase, + &overlap) == -1) { + return -1; + } + + std::vector<uint8_t> tgtbuffer(tgt.size * BLOCKSIZE); + + if (ReadBlocks(tgt, tgtbuffer, params.fd) == -1) { + return -1; + } + + if (VerifyBlocks(tgthash, tgtbuffer, tgt.size, false) == 0) { + // Target blocks already have expected content, command should be skipped + return 1; + } + + if (VerifyBlocks(srchash, params.buffer, src_blocks, true) == 0) { + // If source and target blocks overlap, stash the source blocks so we can + // resume from possible write errors. In verify mode, we can skip stashing + // because the source blocks won't be overwritten. + if (overlap && params.canwrite) { + fprintf(stderr, "stashing %zu overlapping blocks to %s\n", src_blocks, + srchash.c_str()); + + bool stash_exists = false; + if (WriteStash(params.stashbase, srchash, src_blocks, params.buffer, true, + &stash_exists) != 0) { + fprintf(stderr, "failed to stash overlapping source blocks\n"); + return -1; + } + + params.stashed += src_blocks; + // Can be deleted when the write has completed + if (!stash_exists) { + params.freestash = srchash; + } + } + + // Source blocks have expected content, command can proceed + return 0; + } + + if (overlap && LoadStash(params, params.stashbase, srchash, true, nullptr, params.buffer, + true) == 0) { + // Overlapping source blocks were previously stashed, command can proceed. + // We are recovering from an interrupted command, so we don't know if the + // stash can safely be deleted after this command. + return 0; + } + + // Valid source data not available, update cannot be resumed + fprintf(stderr, "partition has unexpected contents\n"); + params.isunresumable = true; + + return -1; +} + +static int PerformCommandMove(CommandParameters& params) { + size_t blocks = 0; + bool overlap = false; + int status = 0; + RangeSet tgt; + + if (params.version == 1) { + status = LoadSrcTgtVersion1(params, tgt, blocks, params.buffer, params.fd); + } else if (params.version == 2) { + status = LoadSrcTgtVersion2(params, tgt, blocks, params.buffer, params.fd, + params.stashbase, nullptr); + } else if (params.version >= 3) { + status = LoadSrcTgtVersion3(params, tgt, blocks, true, overlap); + } + + if (status == -1) { + fprintf(stderr, "failed to read blocks for move\n"); + return -1; + } + + if (status == 0) { + params.foundwrites = true; + } else if (params.foundwrites) { + fprintf(stderr, "warning: commands executed out of order [%s]\n", params.cmdname); + } + + if (params.canwrite) { + if (status == 0) { + fprintf(stderr, " moving %zu blocks\n", blocks); + + if (WriteBlocks(tgt, params.buffer, params.fd) == -1) { + return -1; + } + } else { + fprintf(stderr, "skipping %zu already moved blocks\n", blocks); + } + + } + + if (!params.freestash.empty()) { + FreeStash(params.stashbase, params.freestash); + params.freestash.clear(); + } + + params.written += tgt.size; + + return 0; +} + +static int PerformCommandStash(CommandParameters& params) { + return SaveStash(params, params.stashbase, params.buffer, params.fd, + (params.version >= 3)); +} + +static int PerformCommandFree(CommandParameters& params) { + // <stash_id> + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing stash id in free command\n"); + return -1; + } + + const std::string& id = params.tokens[params.cpos++]; + + if (!params.canwrite && stash_map.find(id) != stash_map.end()) { + stash_map.erase(id); + return 0; + } + + if (params.createdstash || params.canwrite) { + return FreeStash(params.stashbase, id); + } + + return 0; +} + +static int PerformCommandZero(CommandParameters& params) { + + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing target blocks for zero\n"); + return -1; + } + + RangeSet tgt; + parse_range(params.tokens[params.cpos++], tgt); + + fprintf(stderr, " zeroing %zu blocks\n", tgt.size); + + allocate(BLOCKSIZE, params.buffer); + memset(params.buffer.data(), 0, BLOCKSIZE); + + if (params.canwrite) { + for (size_t i = 0; i < tgt.count; ++i) { + off64_t offset = static_cast<off64_t>(tgt.pos[i * 2]) * BLOCKSIZE; + size_t size = (tgt.pos[i * 2 + 1] - tgt.pos[i * 2]) * BLOCKSIZE; + if (!discard_blocks(params.fd, offset, size)) { + return -1; + } + + if (!check_lseek(params.fd, offset, SEEK_SET)) { + return -1; + } + + for (size_t j = tgt.pos[i * 2]; j < tgt.pos[i * 2 + 1]; ++j) { + if (write_all(params.fd, params.buffer, BLOCKSIZE) == -1) { + return -1; + } + } + } + } + + if (params.cmdname[0] == 'z') { + // Update only for the zero command, as the erase command will call + // this if DEBUG_ERASE is defined. + params.written += tgt.size; + } + + return 0; +} + +static int PerformCommandNew(CommandParameters& params) { + + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing target blocks for new\n"); + return -1; + } + + RangeSet tgt; + parse_range(params.tokens[params.cpos++], tgt); + + if (params.canwrite) { + fprintf(stderr, " writing %zu blocks of new data\n", tgt.size); + + RangeSinkState rss(tgt); + rss.fd = params.fd; + rss.p_block = 0; + rss.p_remain = (tgt.pos[1] - tgt.pos[0]) * BLOCKSIZE; + + off64_t offset = static_cast<off64_t>(tgt.pos[0]) * BLOCKSIZE; + if (!discard_blocks(params.fd, offset, tgt.size * BLOCKSIZE)) { + return -1; + } + + if (!check_lseek(params.fd, offset, SEEK_SET)) { + return -1; + } + + pthread_mutex_lock(¶ms.nti.mu); + params.nti.rss = &rss; + pthread_cond_broadcast(¶ms.nti.cv); + + while (params.nti.rss) { + pthread_cond_wait(¶ms.nti.cv, ¶ms.nti.mu); + } + + pthread_mutex_unlock(¶ms.nti.mu); + } + + params.written += tgt.size; + + return 0; +} + +static int PerformCommandDiff(CommandParameters& params) { + + // <offset> <length> + if (params.cpos + 1 >= params.tokens.size()) { + fprintf(stderr, "missing patch offset or length for %s\n", params.cmdname); + return -1; + } + + size_t offset; + if (!android::base::ParseUint(params.tokens[params.cpos++].c_str(), &offset)) { + fprintf(stderr, "invalid patch offset\n"); + return -1; + } + + size_t len; + if (!android::base::ParseUint(params.tokens[params.cpos++].c_str(), &len)) { + fprintf(stderr, "invalid patch offset\n"); + return -1; + } + + RangeSet tgt; + size_t blocks = 0; + bool overlap = false; + int status = 0; + if (params.version == 1) { + status = LoadSrcTgtVersion1(params, tgt, blocks, params.buffer, params.fd); + } else if (params.version == 2) { + status = LoadSrcTgtVersion2(params, tgt, blocks, params.buffer, params.fd, + params.stashbase, nullptr); + } else if (params.version >= 3) { + status = LoadSrcTgtVersion3(params, tgt, blocks, false, overlap); + } + + if (status == -1) { + fprintf(stderr, "failed to read blocks for diff\n"); + return -1; + } + + if (status == 0) { + params.foundwrites = true; + } else if (params.foundwrites) { + fprintf(stderr, "warning: commands executed out of order [%s]\n", params.cmdname); + } + + if (params.canwrite) { + if (status == 0) { + fprintf(stderr, "patching %zu blocks to %zu\n", blocks, tgt.size); + + Value patch_value; + patch_value.type = VAL_BLOB; + patch_value.size = len; + patch_value.data = (char*) (params.patch_start + offset); + + RangeSinkState rss(tgt); + rss.fd = params.fd; + rss.p_block = 0; + rss.p_remain = (tgt.pos[1] - tgt.pos[0]) * BLOCKSIZE; + + off64_t offset = static_cast<off64_t>(tgt.pos[0]) * BLOCKSIZE; + if (!discard_blocks(params.fd, offset, rss.p_remain)) { + return -1; + } + + if (!check_lseek(params.fd, offset, SEEK_SET)) { + return -1; + } + + if (params.cmdname[0] == 'i') { // imgdiff + ApplyImagePatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value, + &RangeSinkWrite, &rss, nullptr, nullptr); + } else { + ApplyBSDiffPatch(params.buffer.data(), blocks * BLOCKSIZE, &patch_value, 0, + &RangeSinkWrite, &rss, nullptr); + } + + // We expect the output of the patcher to fill the tgt ranges exactly. + if (rss.p_block != tgt.count || rss.p_remain != 0) { + fprintf(stderr, "range sink underrun?\n"); + } + } else { + fprintf(stderr, "skipping %zu blocks already patched to %zu [%s]\n", + blocks, tgt.size, params.cmdline); + } + } + + if (!params.freestash.empty()) { + FreeStash(params.stashbase, params.freestash); + params.freestash.clear(); + } + + params.written += tgt.size; + + return 0; +} + +static int PerformCommandErase(CommandParameters& params) { + if (DEBUG_ERASE) { + return PerformCommandZero(params); + } + + struct stat sb; + if (fstat(params.fd, &sb) == -1) { + fprintf(stderr, "failed to fstat device to erase: %s\n", strerror(errno)); + return -1; + } + + if (!S_ISBLK(sb.st_mode)) { + fprintf(stderr, "not a block device; skipping erase\n"); + return -1; + } + + if (params.cpos >= params.tokens.size()) { + fprintf(stderr, "missing target blocks for erase\n"); + return -1; + } + + RangeSet tgt; + parse_range(params.tokens[params.cpos++], tgt); + + if (params.canwrite) { + fprintf(stderr, " erasing %zu blocks\n", tgt.size); + + for (size_t i = 0; i < tgt.count; ++i) { + uint64_t blocks[2]; + // offset in bytes + blocks[0] = tgt.pos[i * 2] * (uint64_t) BLOCKSIZE; + // length in bytes + blocks[1] = (tgt.pos[i * 2 + 1] - tgt.pos[i * 2]) * (uint64_t) BLOCKSIZE; + + if (ioctl(params.fd, BLKDISCARD, &blocks) == -1) { + fprintf(stderr, "BLKDISCARD ioctl failed: %s\n", strerror(errno)); + return -1; + } + } + } + + return 0; +} + +// Definitions for transfer list command functions +typedef int (*CommandFunction)(CommandParameters&); + +struct Command { + const char* name; + CommandFunction f; +}; + +// CompareCommands and CompareCommandNames are for the hash table + +static int CompareCommands(const void* c1, const void* c2) { + return strcmp(((const Command*) c1)->name, ((const Command*) c2)->name); +} + +static int CompareCommandNames(const void* c1, const void* c2) { + return strcmp(((const Command*) c1)->name, (const char*) c2); +} + +// HashString is used to hash command names for the hash table + +static unsigned int HashString(const char *s) { + unsigned int hash = 0; + if (s) { + while (*s) { + hash = hash * 33 + *s++; + } + } + return hash; +} + +// args: +// - block device (or file) to modify in-place +// - transfer list (blob) +// - new data stream (filename within package.zip) +// - patch stream (filename within package.zip, must be uncompressed) + +static Value* PerformBlockImageUpdate(const char* name, State* state, int /* argc */, Expr* argv[], + const Command* commands, size_t cmdcount, bool dryrun) { + CommandParameters params; + memset(¶ms, 0, sizeof(params)); + params.canwrite = !dryrun; + + fprintf(stderr, "performing %s\n", dryrun ? "verification" : "update"); + if (state->is_retry) { + is_retry = true; + fprintf(stderr, "This update is a retry.\n"); + } + + Value* blockdev_filename = nullptr; + Value* transfer_list_value = nullptr; + Value* new_data_fn = nullptr; + Value* patch_data_fn = nullptr; + if (ReadValueArgs(state, argv, 4, &blockdev_filename, &transfer_list_value, + &new_data_fn, &patch_data_fn) < 0) { + return StringValue(strdup("")); + } + std::unique_ptr<Value, decltype(&FreeValue)> blockdev_filename_holder(blockdev_filename, + FreeValue); + std::unique_ptr<Value, decltype(&FreeValue)> transfer_list_value_holder(transfer_list_value, + FreeValue); + std::unique_ptr<Value, decltype(&FreeValue)> new_data_fn_holder(new_data_fn, FreeValue); + std::unique_ptr<Value, decltype(&FreeValue)> patch_data_fn_holder(patch_data_fn, FreeValue); + + if (blockdev_filename->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string", + name); + return StringValue(strdup("")); + } + if (transfer_list_value->type != VAL_BLOB) { + ErrorAbort(state, kArgsParsingFailure, "transfer_list argument to %s must be blob", name); + return StringValue(strdup("")); + } + if (new_data_fn->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "new_data_fn argument to %s must be string", name); + return StringValue(strdup("")); + } + if (patch_data_fn->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "patch_data_fn argument to %s must be string", + name); + return StringValue(strdup("")); + } + + UpdaterInfo* ui = reinterpret_cast<UpdaterInfo*>(state->cookie); + + if (ui == nullptr) { + return StringValue(strdup("")); + } + + FILE* cmd_pipe = ui->cmd_pipe; + ZipArchive* za = ui->package_zip; + + if (cmd_pipe == nullptr || za == nullptr) { + return StringValue(strdup("")); + } + + const ZipEntry* patch_entry = mzFindZipEntry(za, patch_data_fn->data); + if (patch_entry == nullptr) { + fprintf(stderr, "%s(): no file \"%s\" in package", name, patch_data_fn->data); + return StringValue(strdup("")); + } + + params.patch_start = ui->package_zip_addr + mzGetZipEntryOffset(patch_entry); + const ZipEntry* new_entry = mzFindZipEntry(za, new_data_fn->data); + if (new_entry == nullptr) { + fprintf(stderr, "%s(): no file \"%s\" in package", name, new_data_fn->data); + return StringValue(strdup("")); + } + + params.fd = TEMP_FAILURE_RETRY(open(blockdev_filename->data, O_RDWR)); + unique_fd fd_holder(params.fd); + + if (params.fd == -1) { + fprintf(stderr, "open \"%s\" failed: %s\n", blockdev_filename->data, strerror(errno)); + return StringValue(strdup("")); + } + + if (params.canwrite) { + params.nti.za = za; + params.nti.entry = new_entry; + + pthread_mutex_init(¶ms.nti.mu, nullptr); + pthread_cond_init(¶ms.nti.cv, nullptr); + pthread_attr_t attr; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); + + int error = pthread_create(¶ms.thread, &attr, unzip_new_data, ¶ms.nti); + if (error != 0) { + fprintf(stderr, "pthread_create failed: %s\n", strerror(error)); + return StringValue(strdup("")); + } + } + + // Copy all the lines in transfer_list_value into std::string for + // processing. + const std::string transfer_list(transfer_list_value->data, transfer_list_value->size); + std::vector<std::string> lines = android::base::Split(transfer_list, "\n"); + if (lines.size() < 2) { + ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zd]\n", + lines.size()); + return StringValue(strdup("")); + } + + // First line in transfer list is the version number + if (!android::base::ParseInt(lines[0].c_str(), ¶ms.version, 1, 4)) { + fprintf(stderr, "unexpected transfer list version [%s]\n", lines[0].c_str()); + return StringValue(strdup("")); + } + + fprintf(stderr, "blockimg version is %d\n", params.version); + + // Second line in transfer list is the total number of blocks we expect to write + int total_blocks; + if (!android::base::ParseInt(lines[1].c_str(), &total_blocks, 0)) { + ErrorAbort(state, kArgsParsingFailure, "unexpected block count [%s]\n", lines[1].c_str()); + return StringValue(strdup("")); + } + + if (total_blocks == 0) { + return StringValue(strdup("t")); + } + + size_t start = 2; + if (params.version >= 2) { + if (lines.size() < 4) { + ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n", + lines.size()); + return StringValue(strdup("")); + } + + // Third line is how many stash entries are needed simultaneously + fprintf(stderr, "maximum stash entries %s\n", lines[2].c_str()); + + // Fourth line is the maximum number of blocks that will be stashed simultaneously + int stash_max_blocks; + if (!android::base::ParseInt(lines[3].c_str(), &stash_max_blocks, 0)) { + ErrorAbort(state, kArgsParsingFailure, "unexpected maximum stash blocks [%s]\n", + lines[3].c_str()); + return StringValue(strdup("")); + } + + int res = CreateStash(state, stash_max_blocks, blockdev_filename->data, params.stashbase); + if (res == -1) { + return StringValue(strdup("")); + } + + params.createdstash = res; + + start += 2; + } + + // Build a hash table of the available commands + HashTable* cmdht = mzHashTableCreate(cmdcount, nullptr); + std::unique_ptr<HashTable, decltype(&mzHashTableFree)> cmdht_holder(cmdht, mzHashTableFree); + + for (size_t i = 0; i < cmdcount; ++i) { + unsigned int cmdhash = HashString(commands[i].name); + mzHashTableLookup(cmdht, cmdhash, (void*) &commands[i], CompareCommands, true); + } + + int rc = -1; + + // Subsequent lines are all individual transfer commands + for (auto it = lines.cbegin() + start; it != lines.cend(); it++) { + const std::string& line_str(*it); + if (line_str.empty()) { + continue; + } + + params.tokens = android::base::Split(line_str, " "); + params.cpos = 0; + params.cmdname = params.tokens[params.cpos++].c_str(); + params.cmdline = line_str.c_str(); + + unsigned int cmdhash = HashString(params.cmdname); + const Command* cmd = reinterpret_cast<const Command*>(mzHashTableLookup(cmdht, cmdhash, + const_cast<char*>(params.cmdname), CompareCommandNames, + false)); + + if (cmd == nullptr) { + fprintf(stderr, "unexpected command [%s]\n", params.cmdname); + goto pbiudone; + } + + if (cmd->f != nullptr && cmd->f(params) == -1) { + fprintf(stderr, "failed to execute command [%s]\n", line_str.c_str()); + goto pbiudone; + } + + if (params.canwrite) { + if (ota_fsync(params.fd) == -1) { + failure_type = kFsyncFailure; + fprintf(stderr, "fsync failed: %s\n", strerror(errno)); + goto pbiudone; + } + fprintf(cmd_pipe, "set_progress %.4f\n", (double) params.written / total_blocks); + fflush(cmd_pipe); + } + } + + if (params.canwrite) { + pthread_join(params.thread, nullptr); + + fprintf(stderr, "wrote %zu blocks; expected %d\n", params.written, total_blocks); + fprintf(stderr, "stashed %zu blocks\n", params.stashed); + fprintf(stderr, "max alloc needed was %zu\n", params.buffer.size()); + + const char* partition = strrchr(blockdev_filename->data, '/'); + if (partition != nullptr && *(partition+1) != 0) { + fprintf(cmd_pipe, "log bytes_written_%s: %zu\n", partition + 1, + params.written * BLOCKSIZE); + fprintf(cmd_pipe, "log bytes_stashed_%s: %zu\n", partition + 1, + params.stashed * BLOCKSIZE); + fflush(cmd_pipe); + } + // Delete stash only after successfully completing the update, as it + // may contain blocks needed to complete the update later. + DeleteStash(params.stashbase); + } else { + fprintf(stderr, "verified partition contents; update may be resumed\n"); + } + + rc = 0; + +pbiudone: + if (ota_fsync(params.fd) == -1) { + failure_type = kFsyncFailure; + fprintf(stderr, "fsync failed: %s\n", strerror(errno)); + } + // params.fd will be automatically closed because of the fd_holder above. + + // Only delete the stash if the update cannot be resumed, or it's + // a verification run and we created the stash. + if (params.isunresumable || (!params.canwrite && params.createdstash)) { + DeleteStash(params.stashbase); + } + + if (failure_type != kNoCause && state->cause_code == kNoCause) { + state->cause_code = failure_type; + } + + return StringValue(rc == 0 ? strdup("t") : strdup("")); +} + +// The transfer list is a text file containing commands to +// transfer data from one place to another on the target +// partition. We parse it and execute the commands in order: +// +// zero [rangeset] +// - fill the indicated blocks with zeros +// +// new [rangeset] +// - fill the blocks with data read from the new_data file +// +// erase [rangeset] +// - mark the given blocks as empty +// +// move <...> +// bsdiff <patchstart> <patchlen> <...> +// imgdiff <patchstart> <patchlen> <...> +// - read the source blocks, apply a patch (or not in the +// case of move), write result to target blocks. bsdiff or +// imgdiff specifies the type of patch; move means no patch +// at all. +// +// The format of <...> differs between versions 1 and 2; +// see the LoadSrcTgtVersion{1,2}() functions for a +// description of what's expected. +// +// stash <stash_id> <src_range> +// - (version 2+ only) load the given source range and stash +// the data in the given slot of the stash table. +// +// free <stash_id> +// - (version 3+ only) free the given stash data. +// +// The creator of the transfer list will guarantee that no block +// is read (ie, used as the source for a patch or move) after it +// has been written. +// +// In version 2, the creator will guarantee that a given stash is +// loaded (with a stash command) before it's used in a +// move/bsdiff/imgdiff command. +// +// Within one command the source and target ranges may overlap so +// in general we need to read the entire source into memory before +// writing anything to the target blocks. +// +// All the patch data is concatenated into one patch_data file in +// the update package. It must be stored uncompressed because we +// memory-map it in directly from the archive. (Since patches are +// already compressed, we lose very little by not compressing +// their concatenation.) +// +// In version 3, commands that read data from the partition (i.e. +// move/bsdiff/imgdiff/stash) have one or more additional hashes +// before the range parameters, which are used to check if the +// command has already been completed and verify the integrity of +// the source data. + +Value* BlockImageVerifyFn(const char* name, State* state, int argc, Expr* argv[]) { + // Commands which are not tested are set to nullptr to skip them completely + const Command commands[] = { + { "bsdiff", PerformCommandDiff }, + { "erase", nullptr }, + { "free", PerformCommandFree }, + { "imgdiff", PerformCommandDiff }, + { "move", PerformCommandMove }, + { "new", nullptr }, + { "stash", PerformCommandStash }, + { "zero", nullptr } + }; + + // Perform a dry run without writing to test if an update can proceed + return PerformBlockImageUpdate(name, state, argc, argv, commands, + sizeof(commands) / sizeof(commands[0]), true); +} + +Value* BlockImageUpdateFn(const char* name, State* state, int argc, Expr* argv[]) { + const Command commands[] = { + { "bsdiff", PerformCommandDiff }, + { "erase", PerformCommandErase }, + { "free", PerformCommandFree }, + { "imgdiff", PerformCommandDiff }, + { "move", PerformCommandMove }, + { "new", PerformCommandNew }, + { "stash", PerformCommandStash }, + { "zero", PerformCommandZero } + }; + + return PerformBlockImageUpdate(name, state, argc, argv, commands, + sizeof(commands) / sizeof(commands[0]), false); +} + +Value* RangeSha1Fn(const char* name, State* state, int /* argc */, Expr* argv[]) { + Value* blockdev_filename; + Value* ranges; + + if (ReadValueArgs(state, argv, 2, &blockdev_filename, &ranges) < 0) { + return StringValue(strdup("")); + } + std::unique_ptr<Value, decltype(&FreeValue)> ranges_holder(ranges, FreeValue); + std::unique_ptr<Value, decltype(&FreeValue)> blockdev_filename_holder(blockdev_filename, + FreeValue); + + if (blockdev_filename->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string", + name); + return StringValue(strdup("")); + } + if (ranges->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name); + return StringValue(strdup("")); + } + + int fd = open(blockdev_filename->data, O_RDWR); + unique_fd fd_holder(fd); + if (fd < 0) { + ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", blockdev_filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + RangeSet rs; + parse_range(ranges->data, rs); + + SHA_CTX ctx; + SHA1_Init(&ctx); + + std::vector<uint8_t> buffer(BLOCKSIZE); + for (size_t i = 0; i < rs.count; ++i) { + if (!check_lseek(fd, (off64_t)rs.pos[i*2] * BLOCKSIZE, SEEK_SET)) { + ErrorAbort(state, kLseekFailure, "failed to seek %s: %s", blockdev_filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + for (size_t j = rs.pos[i*2]; j < rs.pos[i*2+1]; ++j) { + if (read_all(fd, buffer, BLOCKSIZE) == -1) { + ErrorAbort(state, kFreadFailure, "failed to read %s: %s", blockdev_filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + SHA1_Update(&ctx, buffer.data(), BLOCKSIZE); + } + } + uint8_t digest[SHA_DIGEST_LENGTH]; + SHA1_Final(digest, &ctx); + + return StringValue(strdup(print_sha1(digest).c_str())); +} + +// This function checks if a device has been remounted R/W prior to an incremental +// OTA update. This is an common cause of update abortion. The function reads the +// 1st block of each partition and check for mounting time/count. It return string "t" +// if executes successfully and an empty string otherwise. + +Value* CheckFirstBlockFn(const char* name, State* state, int argc, Expr* argv[]) { + Value* arg_filename; + + if (ReadValueArgs(state, argv, 1, &arg_filename) < 0) { + return nullptr; + } + std::unique_ptr<Value, decltype(&FreeValue)> filename(arg_filename, FreeValue); + + if (filename->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name); + return StringValue(strdup("")); + } + + int fd = open(arg_filename->data, O_RDONLY); + unique_fd fd_holder(fd); + if (fd == -1) { + ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", arg_filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + RangeSet blk0 {1 /*count*/, 1/*size*/, std::vector<size_t> {0, 1}/*position*/}; + std::vector<uint8_t> block0_buffer(BLOCKSIZE); + + if (ReadBlocks(blk0, block0_buffer, fd) == -1) { + ErrorAbort(state, kFreadFailure, "failed to read %s: %s", arg_filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + // https://ext4.wiki.kernel.org/index.php/Ext4_Disk_Layout + // Super block starts from block 0, offset 0x400 + // 0x2C: len32 Mount time + // 0x30: len32 Write time + // 0x34: len16 Number of mounts since the last fsck + // 0x38: len16 Magic signature 0xEF53 + + time_t mount_time = *reinterpret_cast<uint32_t*>(&block0_buffer[0x400+0x2C]); + uint16_t mount_count = *reinterpret_cast<uint16_t*>(&block0_buffer[0x400+0x34]); + + if (mount_count > 0) { + uiPrintf(state, "Device was remounted R/W %d times\n", mount_count); + uiPrintf(state, "Last remount happened on %s", ctime(&mount_time)); + } + + return StringValue(strdup("t")); +} + + +Value* BlockImageRecoverFn(const char* name, State* state, int argc, Expr* argv[]) { + Value* arg_filename; + Value* arg_ranges; + + if (ReadValueArgs(state, argv, 2, &arg_filename, &arg_ranges) < 0) { + return NULL; + } + + std::unique_ptr<Value, decltype(&FreeValue)> filename(arg_filename, FreeValue); + std::unique_ptr<Value, decltype(&FreeValue)> ranges(arg_ranges, FreeValue); + + if (filename->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name); + return StringValue(strdup("")); + } + if (ranges->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name); + return StringValue(strdup("")); + } + + // Output notice to log when recover is attempted + fprintf(stderr, "%s image corrupted, attempting to recover...\n", filename->data); + + // When opened with O_RDWR, libfec rewrites corrupted blocks when they are read + fec::io fh(filename->data, O_RDWR); + + if (!fh) { + ErrorAbort(state, kLibfecFailure, "fec_open \"%s\" failed: %s", filename->data, + strerror(errno)); + return StringValue(strdup("")); + } + + if (!fh.has_ecc() || !fh.has_verity()) { + ErrorAbort(state, kLibfecFailure, "unable to use metadata to correct errors"); + return StringValue(strdup("")); + } + + fec_status status; + + if (!fh.get_status(status)) { + ErrorAbort(state, kLibfecFailure, "failed to read FEC status"); + return StringValue(strdup("")); + } + + RangeSet rs; + parse_range(ranges->data, rs); + + uint8_t buffer[BLOCKSIZE]; + + for (size_t i = 0; i < rs.count; ++i) { + for (size_t j = rs.pos[i * 2]; j < rs.pos[i * 2 + 1]; ++j) { + // Stay within the data area, libfec validates and corrects metadata + if (status.data_size <= (uint64_t)j * BLOCKSIZE) { + continue; + } + + if (fh.pread(buffer, BLOCKSIZE, (off64_t)j * BLOCKSIZE) != BLOCKSIZE) { + ErrorAbort(state, kLibfecFailure, "failed to recover %s (block %zu): %s", + filename->data, j, strerror(errno)); + return StringValue(strdup("")); + } + + // If we want to be able to recover from a situation where rewriting a corrected + // block doesn't guarantee the same data will be returned when re-read later, we + // can save a copy of corrected blocks to /cache. Note: + // + // 1. Maximum space required from /cache is the same as the maximum number of + // corrupted blocks we can correct. For RS(255, 253) and a 2 GiB partition, + // this would be ~16 MiB, for example. + // + // 2. To find out if this block was corrupted, call fec_get_status after each + // read and check if the errors field value has increased. + } + } + fprintf(stderr, "...%s image recovered successfully.\n", filename->data); + return StringValue(strdup("t")); +} + +void RegisterBlockImageFunctions() { + RegisterFunction("block_image_verify", BlockImageVerifyFn); + RegisterFunction("block_image_update", BlockImageUpdateFn); + RegisterFunction("block_image_recover", BlockImageRecoverFn); + RegisterFunction("check_first_block", CheckFirstBlockFn); + RegisterFunction("range_sha1", RangeSha1Fn); +} diff --git a/updater/install.c b/updater/install.c deleted file mode 100644 index 01a5dd24b..000000000 --- a/updater/install.c +++ /dev/null @@ -1,1625 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <ctype.h> -#include <errno.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> -#include <fcntl.h> -#include <time.h> -#include <selinux/selinux.h> -#include <ftw.h> -#include <sys/capability.h> -#include <sys/xattr.h> -#include <linux/xattr.h> -#include <inttypes.h> - -#include "bootloader.h" -#include "applypatch/applypatch.h" -#include "cutils/android_reboot.h" -#include "cutils/misc.h" -#include "cutils/properties.h" -#include "edify/expr.h" -#include "mincrypt/sha.h" -#include "minzip/DirUtil.h" -#include "mtdutils/mounts.h" -#include "mtdutils/mtdutils.h" -#include "updater.h" -#include "install.h" -#include "tune2fs.h" - -#ifdef USE_EXT4 -#include "make_ext4fs.h" -#include "wipe.h" -#endif - -void uiPrint(State* state, char* buffer) { - char* line = strtok(buffer, "\n"); - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - while (line) { - fprintf(ui->cmd_pipe, "ui_print %s\n", line); - line = strtok(NULL, "\n"); - } - fprintf(ui->cmd_pipe, "ui_print\n"); -} - -__attribute__((__format__(printf, 2, 3))) __nonnull((2)) -void uiPrintf(State* state, const char* format, ...) { - char error_msg[1024]; - va_list ap; - va_start(ap, format); - vsnprintf(error_msg, sizeof(error_msg), format, ap); - va_end(ap); - uiPrint(state, error_msg); -} - -// Take a sha-1 digest and return it as a newly-allocated hex string. -char* PrintSha1(const uint8_t* digest) { - char* buffer = malloc(SHA_DIGEST_SIZE*2 + 1); - int i; - const char* alphabet = "0123456789abcdef"; - for (i = 0; i < SHA_DIGEST_SIZE; ++i) { - buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf]; - buffer[i*2+1] = alphabet[digest[i] & 0xf]; - } - buffer[i*2] = '\0'; - return buffer; -} - -// mount(fs_type, partition_type, location, mount_point) -// -// fs_type="yaffs2" partition_type="MTD" location=partition -// fs_type="ext4" partition_type="EMMC" location=device -Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - if (argc != 4 && argc != 5) { - return ErrorAbort(state, "%s() expects 4-5 args, got %d", name, argc); - } - char* fs_type; - char* partition_type; - char* location; - char* mount_point; - char* mount_options; - bool has_mount_options; - if (argc == 5) { - has_mount_options = true; - if (ReadArgs(state, argv, 5, &fs_type, &partition_type, - &location, &mount_point, &mount_options) < 0) { - return NULL; - } - } else { - has_mount_options = false; - if (ReadArgs(state, argv, 4, &fs_type, &partition_type, - &location, &mount_point) < 0) { - return NULL; - } - } - - if (strlen(fs_type) == 0) { - ErrorAbort(state, "fs_type argument to %s() can't be empty", name); - goto done; - } - if (strlen(partition_type) == 0) { - ErrorAbort(state, "partition_type argument to %s() can't be empty", - name); - goto done; - } - if (strlen(location) == 0) { - ErrorAbort(state, "location argument to %s() can't be empty", name); - goto done; - } - if (strlen(mount_point) == 0) { - ErrorAbort(state, "mount_point argument to %s() can't be empty", name); - goto done; - } - - char *secontext = NULL; - - if (sehandle) { - selabel_lookup(sehandle, &secontext, mount_point, 0755); - setfscreatecon(secontext); - } - - mkdir(mount_point, 0755); - - if (secontext) { - freecon(secontext); - setfscreatecon(NULL); - } - - if (strcmp(partition_type, "MTD") == 0) { - mtd_scan_partitions(); - const MtdPartition* mtd; - mtd = mtd_find_partition_by_name(location); - if (mtd == NULL) { - uiPrintf(state, "%s: no mtd partition named \"%s\"", - name, location); - result = strdup(""); - goto done; - } - if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) { - uiPrintf(state, "mtd mount of %s failed: %s\n", - location, strerror(errno)); - result = strdup(""); - goto done; - } - result = mount_point; - } else { - if (mount(location, mount_point, fs_type, - MS_NOATIME | MS_NODEV | MS_NODIRATIME, - has_mount_options ? mount_options : "") < 0) { - uiPrintf(state, "%s: failed to mount %s at %s: %s\n", - name, location, mount_point, strerror(errno)); - result = strdup(""); - } else { - result = mount_point; - } - } - -done: - free(fs_type); - free(partition_type); - free(location); - if (result != mount_point) free(mount_point); - if (has_mount_options) free(mount_options); - return StringValue(result); -} - - -// is_mounted(mount_point) -Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - char* mount_point; - if (ReadArgs(state, argv, 1, &mount_point) < 0) { - return NULL; - } - if (strlen(mount_point) == 0) { - ErrorAbort(state, "mount_point argument to unmount() can't be empty"); - goto done; - } - - scan_mounted_volumes(); - const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point); - if (vol == NULL) { - result = strdup(""); - } else { - result = mount_point; - } - -done: - if (result != mount_point) free(mount_point); - return StringValue(result); -} - - -Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - char* mount_point; - if (ReadArgs(state, argv, 1, &mount_point) < 0) { - return NULL; - } - if (strlen(mount_point) == 0) { - ErrorAbort(state, "mount_point argument to unmount() can't be empty"); - goto done; - } - - scan_mounted_volumes(); - const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point); - if (vol == NULL) { - uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point); - result = strdup(""); - } else { - int ret = unmount_mounted_volume(vol); - if (ret != 0) { - uiPrintf(state, "unmount of %s failed (%d): %s\n", - mount_point, ret, strerror(errno)); - } - result = mount_point; - } - -done: - if (result != mount_point) free(mount_point); - return StringValue(result); -} - -static int exec_cmd(const char* path, char* const argv[]) { - int status; - pid_t child; - if ((child = vfork()) == 0) { - execv(path, argv); - _exit(-1); - } - waitpid(child, &status, 0); - if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { - printf("%s failed with status %d\n", path, WEXITSTATUS(status)); - } - return WEXITSTATUS(status); -} - - -// format(fs_type, partition_type, location, fs_size, mount_point) -// -// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location> -// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> -// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> -// if fs_size == 0, then make fs uses the entire partition. -// if fs_size > 0, that is the size to use -// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs") -Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - if (argc != 5) { - return ErrorAbort(state, "%s() expects 5 args, got %d", name, argc); - } - char* fs_type; - char* partition_type; - char* location; - char* fs_size; - char* mount_point; - - if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) { - return NULL; - } - - if (strlen(fs_type) == 0) { - ErrorAbort(state, "fs_type argument to %s() can't be empty", name); - goto done; - } - if (strlen(partition_type) == 0) { - ErrorAbort(state, "partition_type argument to %s() can't be empty", - name); - goto done; - } - if (strlen(location) == 0) { - ErrorAbort(state, "location argument to %s() can't be empty", name); - goto done; - } - - if (strlen(mount_point) == 0) { - ErrorAbort(state, "mount_point argument to %s() can't be empty", name); - goto done; - } - - if (strcmp(partition_type, "MTD") == 0) { - mtd_scan_partitions(); - const MtdPartition* mtd = mtd_find_partition_by_name(location); - if (mtd == NULL) { - printf("%s: no mtd partition named \"%s\"", - name, location); - result = strdup(""); - goto done; - } - MtdWriteContext* ctx = mtd_write_partition(mtd); - if (ctx == NULL) { - printf("%s: can't write \"%s\"", name, location); - result = strdup(""); - goto done; - } - if (mtd_erase_blocks(ctx, -1) == -1) { - mtd_write_close(ctx); - printf("%s: failed to erase \"%s\"", name, location); - result = strdup(""); - goto done; - } - if (mtd_write_close(ctx) != 0) { - printf("%s: failed to close \"%s\"", name, location); - result = strdup(""); - goto done; - } - result = location; -#ifdef USE_EXT4 - } else if (strcmp(fs_type, "ext4") == 0) { - int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle); - if (status != 0) { - printf("%s: make_ext4fs failed (%d) on %s", - name, status, location); - result = strdup(""); - goto done; - } - result = location; - } else if (strcmp(fs_type, "f2fs") == 0) { - char *num_sectors; - if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) { - printf("format_volume: failed to create %s command for %s\n", fs_type, location); - result = strdup(""); - goto done; - } - const char *f2fs_path = "/sbin/mkfs.f2fs"; - const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL}; - int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv); - free(num_sectors); - if (status != 0) { - printf("%s: mkfs.f2fs failed (%d) on %s", - name, status, location); - result = strdup(""); - goto done; - } - result = location; -#endif - } else { - printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"", - name, fs_type, partition_type); - } - -done: - free(fs_type); - free(partition_type); - if (result != location) free(location); - return StringValue(result); -} - -Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - - char* src_name; - char* dst_name; - - if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) { - return NULL; - } - if (strlen(src_name) == 0) { - ErrorAbort(state, "src_name argument to %s() can't be empty", name); - goto done; - } - if (strlen(dst_name) == 0) { - ErrorAbort(state, "dst_name argument to %s() can't be empty", name); - goto done; - } - if (make_parents(dst_name) != 0) { - ErrorAbort(state, "Creating parent of %s failed, error %s", - dst_name, strerror(errno)); - } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) { - // File was already moved - result = dst_name; - } else if (rename(src_name, dst_name) != 0) { - ErrorAbort(state, "Rename of %s to %s failed, error %s", - src_name, dst_name, strerror(errno)); - } else { - result = dst_name; - } - -done: - free(src_name); - if (result != dst_name) free(dst_name); - return StringValue(result); -} - -Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) { - char** paths = malloc(argc * sizeof(char*)); - int i; - for (i = 0; i < argc; ++i) { - paths[i] = Evaluate(state, argv[i]); - if (paths[i] == NULL) { - int j; - for (j = 0; j < i; ++i) { - free(paths[j]); - } - free(paths); - return NULL; - } - } - - bool recursive = (strcmp(name, "delete_recursive") == 0); - - int success = 0; - for (i = 0; i < argc; ++i) { - if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0) - ++success; - free(paths[i]); - } - free(paths); - - char buffer[10]; - sprintf(buffer, "%d", success); - return StringValue(strdup(buffer)); -} - - -Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - char* frac_str; - char* sec_str; - if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) { - return NULL; - } - - double frac = strtod(frac_str, NULL); - int sec = strtol(sec_str, NULL, 10); - - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec); - - free(sec_str); - return StringValue(frac_str); -} - -Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - char* frac_str; - if (ReadArgs(state, argv, 1, &frac_str) < 0) { - return NULL; - } - - double frac = strtod(frac_str, NULL); - - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - fprintf(ui->cmd_pipe, "set_progress %f\n", frac); - - return StringValue(frac_str); -} - -// package_extract_dir(package_path, destination_path) -Value* PackageExtractDirFn(const char* name, State* state, - int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - char* zip_path; - char* dest_path; - if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL; - - ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; - - // To create a consistent system image, never use the clock for timestamps. - struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default - - bool success = mzExtractRecursive(za, zip_path, dest_path, - ×tamp, - NULL, NULL, sehandle); - free(zip_path); - free(dest_path); - return StringValue(strdup(success ? "t" : "")); -} - - -// package_extract_file(package_path, destination_path) -// or -// package_extract_file(package_path) -// to return the entire contents of the file as the result of this -// function (the char* returned is actually a FileContents*). -Value* PackageExtractFileFn(const char* name, State* state, - int argc, Expr* argv[]) { - if (argc < 1 || argc > 2) { - return ErrorAbort(state, "%s() expects 1 or 2 args, got %d", - name, argc); - } - bool success = false; - - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - - if (argc == 2) { - // The two-argument version extracts to a file. - - ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; - - char* zip_path; - char* dest_path; - if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL; - - const ZipEntry* entry = mzFindZipEntry(za, zip_path); - if (entry == NULL) { - printf("%s: no %s in package\n", name, zip_path); - goto done2; - } - - FILE* f = fopen(dest_path, "wb"); - if (f == NULL) { - printf("%s: can't open %s for write: %s\n", - name, dest_path, strerror(errno)); - goto done2; - } - success = mzExtractZipEntryToFile(za, entry, fileno(f)); - fclose(f); - - done2: - free(zip_path); - free(dest_path); - return StringValue(strdup(success ? "t" : "")); - } else { - // The one-argument version returns the contents of the file - // as the result. - - char* zip_path; - Value* v = malloc(sizeof(Value)); - v->type = VAL_BLOB; - v->size = -1; - v->data = NULL; - - if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL; - - ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; - const ZipEntry* entry = mzFindZipEntry(za, zip_path); - if (entry == NULL) { - printf("%s: no %s in package\n", name, zip_path); - goto done1; - } - - v->size = mzGetZipEntryUncompLen(entry); - v->data = malloc(v->size); - if (v->data == NULL) { - printf("%s: failed to allocate %ld bytes for %s\n", - name, (long)v->size, zip_path); - goto done1; - } - - success = mzExtractZipEntryToBuffer(za, entry, - (unsigned char *)v->data); - - done1: - free(zip_path); - if (!success) { - free(v->data); - v->data = NULL; - v->size = -1; - } - return v; - } -} - -// Create all parent directories of name, if necessary. -static int make_parents(char* name) { - char* p; - for (p = name + (strlen(name)-1); p > name; --p) { - if (*p != '/') continue; - *p = '\0'; - if (make_parents(name) < 0) return -1; - int result = mkdir(name, 0700); - if (result == 0) printf("created [%s]\n", name); - *p = '/'; - if (result == 0 || errno == EEXIST) { - // successfully created or already existed; we're done - return 0; - } else { - printf("failed to mkdir %s: %s\n", name, strerror(errno)); - return -1; - } - } - return 0; -} - -// symlink target src1 src2 ... -// unlinks any previously existing src1, src2, etc before creating symlinks. -Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc == 0) { - return ErrorAbort(state, "%s() expects 1+ args, got %d", name, argc); - } - char* target; - target = Evaluate(state, argv[0]); - if (target == NULL) return NULL; - - char** srcs = ReadVarArgs(state, argc-1, argv+1); - if (srcs == NULL) { - free(target); - return NULL; - } - - int bad = 0; - int i; - for (i = 0; i < argc-1; ++i) { - if (unlink(srcs[i]) < 0) { - if (errno != ENOENT) { - printf("%s: failed to remove %s: %s\n", - name, srcs[i], strerror(errno)); - ++bad; - } - } - if (make_parents(srcs[i])) { - printf("%s: failed to symlink %s to %s: making parents failed\n", - name, srcs[i], target); - ++bad; - } - if (symlink(target, srcs[i]) < 0) { - printf("%s: failed to symlink %s to %s: %s\n", - name, srcs[i], target, strerror(errno)); - ++bad; - } - free(srcs[i]); - } - free(srcs); - if (bad) { - return ErrorAbort(state, "%s: some symlinks failed", name); - } - return StringValue(strdup("")); -} - -struct perm_parsed_args { - bool has_uid; - uid_t uid; - bool has_gid; - gid_t gid; - bool has_mode; - mode_t mode; - bool has_fmode; - mode_t fmode; - bool has_dmode; - mode_t dmode; - bool has_selabel; - char* selabel; - bool has_capabilities; - uint64_t capabilities; -}; - -static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) { - int i; - struct perm_parsed_args parsed; - int bad = 0; - static int max_warnings = 20; - - memset(&parsed, 0, sizeof(parsed)); - - for (i = 1; i < argc; i += 2) { - if (strcmp("uid", args[i]) == 0) { - int64_t uid; - if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) { - parsed.uid = uid; - parsed.has_uid = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("gid", args[i]) == 0) { - int64_t gid; - if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) { - parsed.gid = gid; - parsed.has_gid = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("mode", args[i]) == 0) { - int32_t mode; - if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { - parsed.mode = mode; - parsed.has_mode = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("dmode", args[i]) == 0) { - int32_t mode; - if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { - parsed.dmode = mode; - parsed.has_dmode = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("fmode", args[i]) == 0) { - int32_t mode; - if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { - parsed.fmode = mode; - parsed.has_fmode = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("capabilities", args[i]) == 0) { - int64_t capabilities; - if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) { - parsed.capabilities = capabilities; - parsed.has_capabilities = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (strcmp("selabel", args[i]) == 0) { - if (args[i+1][0] != '\0') { - parsed.selabel = args[i+1]; - parsed.has_selabel = true; - } else { - uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]); - bad++; - } - continue; - } - if (max_warnings != 0) { - printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]); - max_warnings--; - if (max_warnings == 0) { - printf("ParsedPermArgs: suppressing further warnings\n"); - } - } - } - return parsed; -} - -static int ApplyParsedPerms( - State * state, - const char* filename, - const struct stat *statptr, - struct perm_parsed_args parsed) -{ - int bad = 0; - - if (parsed.has_selabel) { - if (lsetfilecon(filename, parsed.selabel) != 0) { - uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n", - filename, parsed.selabel, strerror(errno)); - bad++; - } - } - - /* ignore symlinks */ - if (S_ISLNK(statptr->st_mode)) { - return bad; - } - - if (parsed.has_uid) { - if (chown(filename, parsed.uid, -1) < 0) { - uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n", - filename, parsed.uid, strerror(errno)); - bad++; - } - } - - if (parsed.has_gid) { - if (chown(filename, -1, parsed.gid) < 0) { - uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n", - filename, parsed.gid, strerror(errno)); - bad++; - } - } - - if (parsed.has_mode) { - if (chmod(filename, parsed.mode) < 0) { - uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", - filename, parsed.mode, strerror(errno)); - bad++; - } - } - - if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) { - if (chmod(filename, parsed.dmode) < 0) { - uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", - filename, parsed.dmode, strerror(errno)); - bad++; - } - } - - if (parsed.has_fmode && S_ISREG(statptr->st_mode)) { - if (chmod(filename, parsed.fmode) < 0) { - uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", - filename, parsed.fmode, strerror(errno)); - bad++; - } - } - - if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) { - if (parsed.capabilities == 0) { - if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) { - // Report failure unless it's ENODATA (attribute not set) - uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n", - filename, parsed.capabilities, strerror(errno)); - bad++; - } - } else { - struct vfs_cap_data cap_data; - memset(&cap_data, 0, sizeof(cap_data)); - cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE; - cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff); - cap_data.data[0].inheritable = 0; - cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32); - cap_data.data[1].inheritable = 0; - if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) { - uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n", - filename, parsed.capabilities, strerror(errno)); - bad++; - } - } - } - - return bad; -} - -// nftw doesn't allow us to pass along context, so we need to use -// global variables. *sigh* -static struct perm_parsed_args recursive_parsed_args; -static State* recursive_state; - -static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr, - int fileflags, struct FTW *pfwt) { - return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args); -} - -static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) { - int i; - int bad = 0; - static int nwarnings = 0; - struct stat sb; - Value* result = NULL; - - bool recursive = (strcmp(name, "set_metadata_recursive") == 0); - - if ((argc % 2) != 1) { - return ErrorAbort(state, "%s() expects an odd number of arguments, got %d", - name, argc); - } - - char** args = ReadVarArgs(state, argc, argv); - if (args == NULL) return NULL; - - if (lstat(args[0], &sb) == -1) { - result = ErrorAbort(state, "%s: Error on lstat of \"%s\": %s", name, args[0], strerror(errno)); - goto done; - } - - struct perm_parsed_args parsed = ParsePermArgs(state, argc, args); - - if (recursive) { - recursive_parsed_args = parsed; - recursive_state = state; - bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS); - memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args)); - recursive_state = NULL; - } else { - bad += ApplyParsedPerms(state, args[0], &sb, parsed); - } - -done: - for (i = 0; i < argc; ++i) { - free(args[i]); - } - free(args); - - if (result != NULL) { - return result; - } - - if (bad > 0) { - return ErrorAbort(state, "%s: some changes failed", name); - } - - return StringValue(strdup("")); -} - -Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - char* key; - key = Evaluate(state, argv[0]); - if (key == NULL) return NULL; - - char value[PROPERTY_VALUE_MAX]; - property_get(key, value, ""); - free(key); - - return StringValue(strdup(value)); -} - - -// file_getprop(file, key) -// -// interprets 'file' as a getprop-style file (key=value pairs, one -// per line. # comment lines,blank lines, lines without '=' ignored), -// and returns the value for 'key' (or "" if it isn't defined). -Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - char* buffer = NULL; - char* filename; - char* key; - if (ReadArgs(state, argv, 2, &filename, &key) < 0) { - return NULL; - } - - struct stat st; - if (stat(filename, &st) < 0) { - ErrorAbort(state, "%s: failed to stat \"%s\": %s", - name, filename, strerror(errno)); - goto done; - } - -#define MAX_FILE_GETPROP_SIZE 65536 - - if (st.st_size > MAX_FILE_GETPROP_SIZE) { - ErrorAbort(state, "%s too large for %s (max %d)", - filename, name, MAX_FILE_GETPROP_SIZE); - goto done; - } - - buffer = malloc(st.st_size+1); - if (buffer == NULL) { - ErrorAbort(state, "%s: failed to alloc %lld bytes", name, (long long)st.st_size+1); - goto done; - } - - FILE* f = fopen(filename, "rb"); - if (f == NULL) { - ErrorAbort(state, "%s: failed to open %s: %s", - name, filename, strerror(errno)); - goto done; - } - - if (fread(buffer, 1, st.st_size, f) != st.st_size) { - ErrorAbort(state, "%s: failed to read %lld bytes from %s", - name, (long long)st.st_size+1, filename); - fclose(f); - goto done; - } - buffer[st.st_size] = '\0'; - - fclose(f); - - char* line = strtok(buffer, "\n"); - do { - // skip whitespace at start of line - while (*line && isspace(*line)) ++line; - - // comment or blank line: skip to next line - if (*line == '\0' || *line == '#') continue; - - char* equal = strchr(line, '='); - if (equal == NULL) { - continue; - } - - // trim whitespace between key and '=' - char* key_end = equal-1; - while (key_end > line && isspace(*key_end)) --key_end; - key_end[1] = '\0'; - - // not the key we're looking for - if (strcmp(key, line) != 0) continue; - - // skip whitespace after the '=' to the start of the value - char* val_start = equal+1; - while(*val_start && isspace(*val_start)) ++val_start; - - // trim trailing whitespace - char* val_end = val_start + strlen(val_start)-1; - while (val_end > val_start && isspace(*val_end)) --val_end; - val_end[1] = '\0'; - - result = strdup(val_start); - break; - - } while ((line = strtok(NULL, "\n"))); - - if (result == NULL) result = strdup(""); - - done: - free(filename); - free(key); - free(buffer); - return StringValue(result); -} - - -static bool write_raw_image_cb(const unsigned char* data, - int data_len, void* ctx) { - int r = mtd_write_data((MtdWriteContext*)ctx, (const char *)data, data_len); - if (r == data_len) return true; - printf("%s\n", strerror(errno)); - return false; -} - -// write_raw_image(filename_or_blob, partition) -Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) { - char* result = NULL; - - Value* partition_value; - Value* contents; - if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) { - return NULL; - } - - char* partition = NULL; - if (partition_value->type != VAL_STRING) { - ErrorAbort(state, "partition argument to %s must be string", name); - goto done; - } - partition = partition_value->data; - if (strlen(partition) == 0) { - ErrorAbort(state, "partition argument to %s can't be empty", name); - goto done; - } - if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) { - ErrorAbort(state, "file argument to %s can't be empty", name); - goto done; - } - - mtd_scan_partitions(); - const MtdPartition* mtd = mtd_find_partition_by_name(partition); - if (mtd == NULL) { - printf("%s: no mtd partition named \"%s\"\n", name, partition); - result = strdup(""); - goto done; - } - - MtdWriteContext* ctx = mtd_write_partition(mtd); - if (ctx == NULL) { - printf("%s: can't write mtd partition \"%s\"\n", - name, partition); - result = strdup(""); - goto done; - } - - bool success; - - if (contents->type == VAL_STRING) { - // we're given a filename as the contents - char* filename = contents->data; - FILE* f = fopen(filename, "rb"); - if (f == NULL) { - printf("%s: can't open %s: %s\n", - name, filename, strerror(errno)); - result = strdup(""); - goto done; - } - - success = true; - char* buffer = malloc(BUFSIZ); - int read; - while (success && (read = fread(buffer, 1, BUFSIZ, f)) > 0) { - int wrote = mtd_write_data(ctx, buffer, read); - success = success && (wrote == read); - } - free(buffer); - fclose(f); - } else { - // we're given a blob as the contents - ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size); - success = (wrote == contents->size); - } - if (!success) { - printf("mtd_write_data to %s failed: %s\n", - partition, strerror(errno)); - } - - if (mtd_erase_blocks(ctx, -1) == -1) { - printf("%s: error erasing blocks of %s\n", name, partition); - } - if (mtd_write_close(ctx) != 0) { - printf("%s: error closing write of %s\n", name, partition); - } - - printf("%s %s partition\n", - success ? "wrote" : "failed to write", partition); - - result = success ? partition : strdup(""); - -done: - if (result != partition) FreeValue(partition_value); - FreeValue(contents); - return StringValue(result); -} - -// apply_patch_space(bytes) -Value* ApplyPatchSpaceFn(const char* name, State* state, - int argc, Expr* argv[]) { - char* bytes_str; - if (ReadArgs(state, argv, 1, &bytes_str) < 0) { - return NULL; - } - - char* endptr; - size_t bytes = strtol(bytes_str, &endptr, 10); - if (bytes == 0 && endptr == bytes_str) { - ErrorAbort(state, "%s(): can't parse \"%s\" as byte count\n\n", - name, bytes_str); - free(bytes_str); - return NULL; - } - - return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t")); -} - -// apply_patch(file, size, init_sha1, tgt_sha1, patch) - -Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc < 6 || (argc % 2) == 1) { - return ErrorAbort(state, "%s(): expected at least 6 args and an " - "even number, got %d", - name, argc); - } - - char* source_filename; - char* target_filename; - char* target_sha1; - char* target_size_str; - if (ReadArgs(state, argv, 4, &source_filename, &target_filename, - &target_sha1, &target_size_str) < 0) { - return NULL; - } - - char* endptr; - size_t target_size = strtol(target_size_str, &endptr, 10); - if (target_size == 0 && endptr == target_size_str) { - ErrorAbort(state, "%s(): can't parse \"%s\" as byte count", - name, target_size_str); - free(source_filename); - free(target_filename); - free(target_sha1); - free(target_size_str); - return NULL; - } - - int patchcount = (argc-4) / 2; - Value** patches = ReadValueVarArgs(state, argc-4, argv+4); - - int i; - for (i = 0; i < patchcount; ++i) { - if (patches[i*2]->type != VAL_STRING) { - ErrorAbort(state, "%s(): sha-1 #%d is not string", name, i); - break; - } - if (patches[i*2+1]->type != VAL_BLOB) { - ErrorAbort(state, "%s(): patch #%d is not blob", name, i); - break; - } - } - if (i != patchcount) { - for (i = 0; i < patchcount*2; ++i) { - FreeValue(patches[i]); - } - free(patches); - return NULL; - } - - char** patch_sha_str = malloc(patchcount * sizeof(char*)); - for (i = 0; i < patchcount; ++i) { - patch_sha_str[i] = patches[i*2]->data; - patches[i*2]->data = NULL; - FreeValue(patches[i*2]); - patches[i] = patches[i*2+1]; - } - - int result = applypatch(source_filename, target_filename, - target_sha1, target_size, - patchcount, patch_sha_str, patches, NULL); - - for (i = 0; i < patchcount; ++i) { - FreeValue(patches[i]); - } - free(patch_sha_str); - free(patches); - - return StringValue(strdup(result == 0 ? "t" : "")); -} - -// apply_patch_check(file, [sha1_1, ...]) -Value* ApplyPatchCheckFn(const char* name, State* state, - int argc, Expr* argv[]) { - if (argc < 1) { - return ErrorAbort(state, "%s(): expected at least 1 arg, got %d", - name, argc); - } - - char* filename; - if (ReadArgs(state, argv, 1, &filename) < 0) { - return NULL; - } - - int patchcount = argc-1; - char** sha1s = ReadVarArgs(state, argc-1, argv+1); - - int result = applypatch_check(filename, patchcount, sha1s); - - int i; - for (i = 0; i < patchcount; ++i) { - free(sha1s[i]); - } - free(sha1s); - - return StringValue(strdup(result == 0 ? "t" : "")); -} - -Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) { - char** args = ReadVarArgs(state, argc, argv); - if (args == NULL) { - return NULL; - } - - int size = 0; - int i; - for (i = 0; i < argc; ++i) { - size += strlen(args[i]); - } - char* buffer = malloc(size+1); - size = 0; - for (i = 0; i < argc; ++i) { - strcpy(buffer+size, args[i]); - size += strlen(args[i]); - free(args[i]); - } - free(args); - buffer[size] = '\0'; - uiPrint(state, buffer); - return StringValue(buffer); -} - -Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 0) { - return ErrorAbort(state, "%s() expects no args, got %d", name, argc); - } - fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n"); - return StringValue(strdup("t")); -} - -Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc < 1) { - return ErrorAbort(state, "%s() expects at least 1 arg", name); - } - char** args = ReadVarArgs(state, argc, argv); - if (args == NULL) { - return NULL; - } - - char** args2 = malloc(sizeof(char*) * (argc+1)); - memcpy(args2, args, sizeof(char*) * argc); - args2[argc] = NULL; - - printf("about to run program [%s] with %d args\n", args2[0], argc); - - pid_t child = fork(); - if (child == 0) { - execv(args2[0], args2); - printf("run_program: execv failed: %s\n", strerror(errno)); - _exit(1); - } - int status; - waitpid(child, &status, 0); - if (WIFEXITED(status)) { - if (WEXITSTATUS(status) != 0) { - printf("run_program: child exited with status %d\n", - WEXITSTATUS(status)); - } - } else if (WIFSIGNALED(status)) { - printf("run_program: child terminated by signal %d\n", - WTERMSIG(status)); - } - - int i; - for (i = 0; i < argc; ++i) { - free(args[i]); - } - free(args); - free(args2); - - char buffer[20]; - sprintf(buffer, "%d", status); - - return StringValue(strdup(buffer)); -} - -// sha1_check(data) -// to return the sha1 of the data (given in the format returned by -// read_file). -// -// sha1_check(data, sha1_hex, [sha1_hex, ...]) -// returns the sha1 of the file if it matches any of the hex -// strings passed, or "" if it does not equal any of them. -// -Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc < 1) { - return ErrorAbort(state, "%s() expects at least 1 arg", name); - } - - Value** args = ReadValueVarArgs(state, argc, argv); - if (args == NULL) { - return NULL; - } - - if (args[0]->size < 0) { - return StringValue(strdup("")); - } - uint8_t digest[SHA_DIGEST_SIZE]; - SHA_hash(args[0]->data, args[0]->size, digest); - FreeValue(args[0]); - - if (argc == 1) { - return StringValue(PrintSha1(digest)); - } - - int i; - uint8_t* arg_digest = malloc(SHA_DIGEST_SIZE); - for (i = 1; i < argc; ++i) { - if (args[i]->type != VAL_STRING) { - printf("%s(): arg %d is not a string; skipping", - name, i); - } else if (ParseSha1(args[i]->data, arg_digest) != 0) { - // Warn about bad args and skip them. - printf("%s(): error parsing \"%s\" as sha-1; skipping", - name, args[i]->data); - } else if (memcmp(digest, arg_digest, SHA_DIGEST_SIZE) == 0) { - break; - } - FreeValue(args[i]); - } - if (i >= argc) { - // Didn't match any of the hex strings; return false. - return StringValue(strdup("")); - } - // Found a match; free all the remaining arguments and return the - // matched one. - int j; - for (j = i+1; j < argc; ++j) { - FreeValue(args[j]); - } - return args[i]; -} - -// Read a local file and return its contents (the Value* returned -// is actually a FileContents*). -Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - char* filename; - if (ReadArgs(state, argv, 1, &filename) < 0) return NULL; - - Value* v = malloc(sizeof(Value)); - v->type = VAL_BLOB; - - FileContents fc; - if (LoadFileContents(filename, &fc) != 0) { - free(filename); - v->size = -1; - v->data = NULL; - free(fc.data); - return v; - } - - v->size = fc.size; - v->data = (char*)fc.data; - - free(filename); - return v; -} - -// Immediately reboot the device. Recovery is not finished normally, -// so if you reboot into recovery it will re-start applying the -// current package (because nothing has cleared the copy of the -// arguments stored in the BCB). -// -// The argument is the partition name passed to the android reboot -// property. It can be "recovery" to boot from the recovery -// partition, or "" (empty string) to boot from the regular boot -// partition. -Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - - char* filename; - char* property; - if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL; - - char buffer[80]; - - // zero out the 'command' field of the bootloader message. - memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command)); - FILE* f = fopen(filename, "r+b"); - fseek(f, offsetof(struct bootloader_message, command), SEEK_SET); - fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f); - fclose(f); - free(filename); - - strcpy(buffer, "reboot,"); - if (property != NULL) { - strncat(buffer, property, sizeof(buffer)-10); - } - - property_set(ANDROID_RB_PROPERTY, buffer); - - sleep(5); - free(property); - ErrorAbort(state, "%s() failed to reboot", name); - return NULL; -} - -// Store a string value somewhere that future invocations of recovery -// can access it. This value is called the "stage" and can be used to -// drive packages that need to do reboots in the middle of -// installation and keep track of where they are in the multi-stage -// install. -// -// The first argument is the block device for the misc partition -// ("/misc" in the fstab), which is where this value is stored. The -// second argument is the string to store; it should not exceed 31 -// bytes. -Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - - char* filename; - char* stagestr; - if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL; - - // Store this value in the misc partition, immediately after the - // bootloader message that the main recovery uses to save its - // arguments in case of the device restarting midway through - // package installation. - FILE* f = fopen(filename, "r+b"); - fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET); - int to_write = strlen(stagestr)+1; - int max_size = sizeof(((struct bootloader_message*)0)->stage); - if (to_write > max_size) { - to_write = max_size; - stagestr[max_size-1] = 0; - } - fwrite(stagestr, to_write, 1, f); - fclose(f); - - free(stagestr); - return StringValue(filename); -} - -// Return the value most recently saved with SetStageFn. The argument -// is the block device for the misc partition. -Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 1) { - return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc); - } - - char* filename; - if (ReadArgs(state, argv, 1, &filename) < 0) return NULL; - - char buffer[sizeof(((struct bootloader_message*)0)->stage)]; - FILE* f = fopen(filename, "rb"); - fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET); - fread(buffer, sizeof(buffer), 1, f); - fclose(f); - buffer[sizeof(buffer)-1] = '\0'; - - return StringValue(strdup(buffer)); -} - -Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 2) { - return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc); - } - - char* filename; - char* len_str; - if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL; - - size_t len = strtoull(len_str, NULL, 0); - int fd = open(filename, O_WRONLY, 0644); - int success = wipe_block_device(fd, len); - - free(filename); - free(len_str); - - close(fd); - - return StringValue(strdup(success ? "t" : "")); -} - -Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc != 0) { - return ErrorAbort(state, "%s() expects no args, got %d", name, argc); - } - UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); - fprintf(ui->cmd_pipe, "enable_reboot\n"); - return StringValue(strdup("t")); -} - -Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) { - if (argc == 0) { - return ErrorAbort(state, "%s() expects args, got %d", name, argc); - } - - char** args = ReadVarArgs(state, argc, argv); - if (args == NULL) { - return ErrorAbort(state, "%s() could not read args", name); - } - - int i; - char** args2 = malloc(sizeof(char*) * (argc+1)); - // Tune2fs expects the program name as its args[0] - args2[0] = strdup(name); - for (i = 0; i < argc; ++i) { - args2[i + 1] = args[i]; - } - int result = tune2fs_main(argc + 1, args2); - for (i = 0; i < argc; ++i) { - free(args[i]); - } - free(args); - - free(args2[0]); - free(args2); - if (result != 0) { - return ErrorAbort(state, "%s() returned error code %d", name, result); - } - return StringValue(strdup("t")); -} - -void RegisterInstallFunctions() { - RegisterFunction("mount", MountFn); - RegisterFunction("is_mounted", IsMountedFn); - RegisterFunction("unmount", UnmountFn); - RegisterFunction("format", FormatFn); - RegisterFunction("show_progress", ShowProgressFn); - RegisterFunction("set_progress", SetProgressFn); - RegisterFunction("delete", DeleteFn); - RegisterFunction("delete_recursive", DeleteFn); - RegisterFunction("package_extract_dir", PackageExtractDirFn); - RegisterFunction("package_extract_file", PackageExtractFileFn); - RegisterFunction("symlink", SymlinkFn); - - // Usage: - // set_metadata("filename", "key1", "value1", "key2", "value2", ...) - // Example: - // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0); - RegisterFunction("set_metadata", SetMetadataFn); - - // Usage: - // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...) - // Example: - // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0); - RegisterFunction("set_metadata_recursive", SetMetadataFn); - - RegisterFunction("getprop", GetPropFn); - RegisterFunction("file_getprop", FileGetPropFn); - RegisterFunction("write_raw_image", WriteRawImageFn); - - RegisterFunction("apply_patch", ApplyPatchFn); - RegisterFunction("apply_patch_check", ApplyPatchCheckFn); - RegisterFunction("apply_patch_space", ApplyPatchSpaceFn); - - RegisterFunction("wipe_block_device", WipeBlockDeviceFn); - - RegisterFunction("read_file", ReadFileFn); - RegisterFunction("sha1_check", Sha1CheckFn); - RegisterFunction("rename", RenameFn); - - RegisterFunction("wipe_cache", WipeCacheFn); - - RegisterFunction("ui_print", UIPrintFn); - - RegisterFunction("run_program", RunProgramFn); - - RegisterFunction("reboot_now", RebootNowFn); - RegisterFunction("get_stage", GetStageFn); - RegisterFunction("set_stage", SetStageFn); - - RegisterFunction("enable_reboot", EnableRebootFn); - RegisterFunction("tune2fs", Tune2FsFn); -} diff --git a/updater/install.cpp b/updater/install.cpp new file mode 100644 index 000000000..1a647dfa5 --- /dev/null +++ b/updater/install.cpp @@ -0,0 +1,1643 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <ctype.h> +#include <errno.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mount.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> +#include <fcntl.h> +#include <time.h> +#include <selinux/selinux.h> +#include <ftw.h> +#include <sys/capability.h> +#include <sys/xattr.h> +#include <linux/xattr.h> +#include <inttypes.h> + +#include <memory> +#include <vector> + +#include <android-base/parseint.h> +#include <android-base/strings.h> +#include <android-base/stringprintf.h> + +#include "bootloader.h" +#include "applypatch/applypatch.h" +#include "cutils/android_reboot.h" +#include "cutils/misc.h" +#include "cutils/properties.h" +#include "edify/expr.h" +#include "error_code.h" +#include "minzip/DirUtil.h" +#include "mtdutils/mounts.h" +#include "mtdutils/mtdutils.h" +#include "openssl/sha.h" +#include "ota_io.h" +#include "updater.h" +#include "install.h" +#include "tune2fs.h" + +#ifdef USE_EXT4 +#include "make_ext4fs.h" +#include "wipe.h" +#endif + +// Send over the buffer to recovery though the command pipe. +static void uiPrint(State* state, const std::string& buffer) { + UpdaterInfo* ui = reinterpret_cast<UpdaterInfo*>(state->cookie); + + // "line1\nline2\n" will be split into 3 tokens: "line1", "line2" and "". + // So skip sending empty strings to UI. + std::vector<std::string> lines = android::base::Split(buffer, "\n"); + for (auto& line: lines) { + if (!line.empty()) { + fprintf(ui->cmd_pipe, "ui_print %s\n", line.c_str()); + fprintf(ui->cmd_pipe, "ui_print\n"); + } + } + + // On the updater side, we need to dump the contents to stderr (which has + // been redirected to the log file). Because the recovery will only print + // the contents to screen when processing pipe command ui_print. + fprintf(stderr, "%s", buffer.c_str()); +} + +__attribute__((__format__(printf, 2, 3))) __nonnull((2)) +void uiPrintf(State* state, const char* format, ...) { + std::string error_msg; + + va_list ap; + va_start(ap, format); + android::base::StringAppendV(&error_msg, format, ap); + va_end(ap); + + uiPrint(state, error_msg); +} + +// Take a sha-1 digest and return it as a newly-allocated hex string. +char* PrintSha1(const uint8_t* digest) { + char* buffer = reinterpret_cast<char*>(malloc(SHA_DIGEST_LENGTH*2 + 1)); + const char* alphabet = "0123456789abcdef"; + size_t i; + for (i = 0; i < SHA_DIGEST_LENGTH; ++i) { + buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf]; + buffer[i*2+1] = alphabet[digest[i] & 0xf]; + } + buffer[i*2] = '\0'; + return buffer; +} + +// mount(fs_type, partition_type, location, mount_point) +// +// fs_type="yaffs2" partition_type="MTD" location=partition +// fs_type="ext4" partition_type="EMMC" location=device +Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + if (argc != 4 && argc != 5) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %d", name, argc); + } + char* fs_type; + char* partition_type; + char* location; + char* mount_point; + char* mount_options; + bool has_mount_options; + if (argc == 5) { + has_mount_options = true; + if (ReadArgs(state, argv, 5, &fs_type, &partition_type, + &location, &mount_point, &mount_options) < 0) { + return NULL; + } + } else { + has_mount_options = false; + if (ReadArgs(state, argv, 4, &fs_type, &partition_type, + &location, &mount_point) < 0) { + return NULL; + } + } + + if (strlen(fs_type) == 0) { + ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name); + goto done; + } + if (strlen(partition_type) == 0) { + ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty", + name); + goto done; + } + if (strlen(location) == 0) { + ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name); + goto done; + } + if (strlen(mount_point) == 0) { + ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty", + name); + goto done; + } + + { + char *secontext = NULL; + + if (sehandle) { + selabel_lookup(sehandle, &secontext, mount_point, 0755); + setfscreatecon(secontext); + } + + mkdir(mount_point, 0755); + + if (secontext) { + freecon(secontext); + setfscreatecon(NULL); + } + } + + if (strcmp(partition_type, "MTD") == 0) { + mtd_scan_partitions(); + const MtdPartition* mtd; + mtd = mtd_find_partition_by_name(location); + if (mtd == NULL) { + uiPrintf(state, "%s: no mtd partition named \"%s\"\n", + name, location); + result = strdup(""); + goto done; + } + if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) { + uiPrintf(state, "mtd mount of %s failed: %s\n", + location, strerror(errno)); + result = strdup(""); + goto done; + } + result = mount_point; + } else { + if (mount(location, mount_point, fs_type, + MS_NOATIME | MS_NODEV | MS_NODIRATIME, + has_mount_options ? mount_options : "") < 0) { + uiPrintf(state, "%s: failed to mount %s at %s: %s\n", + name, location, mount_point, strerror(errno)); + result = strdup(""); + } else { + result = mount_point; + } + } + +done: + free(fs_type); + free(partition_type); + free(location); + if (result != mount_point) free(mount_point); + if (has_mount_options) free(mount_options); + return StringValue(result); +} + + +// is_mounted(mount_point) +Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + char* mount_point; + if (ReadArgs(state, argv, 1, &mount_point) < 0) { + return NULL; + } + if (strlen(mount_point) == 0) { + ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty"); + goto done; + } + + scan_mounted_volumes(); + { + const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point); + if (vol == NULL) { + result = strdup(""); + } else { + result = mount_point; + } + } + +done: + if (result != mount_point) free(mount_point); + return StringValue(result); +} + + +Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + char* mount_point; + if (ReadArgs(state, argv, 1, &mount_point) < 0) { + return NULL; + } + if (strlen(mount_point) == 0) { + ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty"); + goto done; + } + + scan_mounted_volumes(); + { + const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point); + if (vol == NULL) { + uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point); + result = strdup(""); + } else { + int ret = unmount_mounted_volume(vol); + if (ret != 0) { + uiPrintf(state, "unmount of %s failed (%d): %s\n", + mount_point, ret, strerror(errno)); + } + result = mount_point; + } + } + +done: + if (result != mount_point) free(mount_point); + return StringValue(result); +} + +static int exec_cmd(const char* path, char* const argv[]) { + int status; + pid_t child; + if ((child = vfork()) == 0) { + execv(path, argv); + _exit(-1); + } + waitpid(child, &status, 0); + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + printf("%s failed with status %d\n", path, WEXITSTATUS(status)); + } + return WEXITSTATUS(status); +} + + +// format(fs_type, partition_type, location, fs_size, mount_point) +// +// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location> +// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> +// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location> +// if fs_size == 0, then make fs uses the entire partition. +// if fs_size > 0, that is the size to use +// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs") +Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + if (argc != 5) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %d", name, argc); + } + char* fs_type; + char* partition_type; + char* location; + char* fs_size; + char* mount_point; + + if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) { + return NULL; + } + + if (strlen(fs_type) == 0) { + ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name); + goto done; + } + if (strlen(partition_type) == 0) { + ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty", + name); + goto done; + } + if (strlen(location) == 0) { + ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name); + goto done; + } + + if (strlen(mount_point) == 0) { + ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty", + name); + goto done; + } + + if (strcmp(partition_type, "MTD") == 0) { + mtd_scan_partitions(); + const MtdPartition* mtd = mtd_find_partition_by_name(location); + if (mtd == NULL) { + printf("%s: no mtd partition named \"%s\"", + name, location); + result = strdup(""); + goto done; + } + MtdWriteContext* ctx = mtd_write_partition(mtd); + if (ctx == NULL) { + printf("%s: can't write \"%s\"", name, location); + result = strdup(""); + goto done; + } + if (mtd_erase_blocks(ctx, -1) == -1) { + mtd_write_close(ctx); + printf("%s: failed to erase \"%s\"", name, location); + result = strdup(""); + goto done; + } + if (mtd_write_close(ctx) != 0) { + printf("%s: failed to close \"%s\"", name, location); + result = strdup(""); + goto done; + } + result = location; +#ifdef USE_EXT4 + } else if (strcmp(fs_type, "ext4") == 0) { + int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle); + if (status != 0) { + printf("%s: make_ext4fs failed (%d) on %s", + name, status, location); + result = strdup(""); + goto done; + } + result = location; + } else if (strcmp(fs_type, "f2fs") == 0) { + char *num_sectors; + if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) { + printf("format_volume: failed to create %s command for %s\n", fs_type, location); + result = strdup(""); + goto done; + } + const char *f2fs_path = "/sbin/mkfs.f2fs"; + const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL}; + int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv); + free(num_sectors); + if (status != 0) { + printf("%s: mkfs.f2fs failed (%d) on %s", + name, status, location); + result = strdup(""); + goto done; + } + result = location; +#endif + } else { + printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"", + name, fs_type, partition_type); + } + +done: + free(fs_type); + free(partition_type); + if (result != location) free(location); + return StringValue(result); +} + +Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + + char* src_name; + char* dst_name; + + if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) { + return NULL; + } + if (strlen(src_name) == 0) { + ErrorAbort(state, kArgsParsingFailure, "src_name argument to %s() can't be empty", name); + goto done; + } + if (strlen(dst_name) == 0) { + ErrorAbort(state, kArgsParsingFailure, "dst_name argument to %s() can't be empty", name); + goto done; + } + if (make_parents(dst_name) != 0) { + ErrorAbort(state, kFileRenameFailure, "Creating parent of %s failed, error %s", + dst_name, strerror(errno)); + } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) { + // File was already moved + result = dst_name; + } else if (rename(src_name, dst_name) != 0) { + ErrorAbort(state, kFileRenameFailure, "Rename of %s to %s failed, error %s", + src_name, dst_name, strerror(errno)); + } else { + result = dst_name; + } + +done: + free(src_name); + if (result != dst_name) free(dst_name); + return StringValue(result); +} + +Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) { + char** paths = reinterpret_cast<char**>(malloc(argc * sizeof(char*))); + for (int i = 0; i < argc; ++i) { + paths[i] = Evaluate(state, argv[i]); + if (paths[i] == NULL) { + for (int j = 0; j < i; ++j) { + free(paths[j]); + } + free(paths); + return NULL; + } + } + + bool recursive = (strcmp(name, "delete_recursive") == 0); + + int success = 0; + for (int i = 0; i < argc; ++i) { + if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0) + ++success; + free(paths[i]); + } + free(paths); + + char buffer[10]; + sprintf(buffer, "%d", success); + return StringValue(strdup(buffer)); +} + + +Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + char* frac_str; + char* sec_str; + if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) { + return NULL; + } + + double frac = strtod(frac_str, NULL); + int sec; + android::base::ParseInt(sec_str, &sec); + + UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); + fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec); + + free(sec_str); + return StringValue(frac_str); +} + +Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + char* frac_str; + if (ReadArgs(state, argv, 1, &frac_str) < 0) { + return NULL; + } + + double frac = strtod(frac_str, NULL); + + UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); + fprintf(ui->cmd_pipe, "set_progress %f\n", frac); + + return StringValue(frac_str); +} + +// package_extract_dir(package_path, destination_path) +Value* PackageExtractDirFn(const char* name, State* state, + int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + char* zip_path; + char* dest_path; + if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL; + + ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; + + // To create a consistent system image, never use the clock for timestamps. + struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default + + bool success = mzExtractRecursive(za, zip_path, dest_path, + ×tamp, + NULL, NULL, sehandle); + free(zip_path); + free(dest_path); + return StringValue(strdup(success ? "t" : "")); +} + + +// package_extract_file(package_path, destination_path) +// or +// package_extract_file(package_path) +// to return the entire contents of the file as the result of this +// function (the char* returned is actually a FileContents*). +Value* PackageExtractFileFn(const char* name, State* state, + int argc, Expr* argv[]) { + if (argc < 1 || argc > 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %d", + name, argc); + } + bool success = false; + + if (argc == 2) { + // The two-argument version extracts to a file. + + ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; + + char* zip_path; + char* dest_path; + if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL; + + const ZipEntry* entry = mzFindZipEntry(za, zip_path); + if (entry == NULL) { + printf("%s: no %s in package\n", name, zip_path); + goto done2; + } + + { + int fd = TEMP_FAILURE_RETRY(ota_open(dest_path, O_WRONLY | O_CREAT | O_TRUNC | O_SYNC, + S_IRUSR | S_IWUSR)); + if (fd == -1) { + printf("%s: can't open %s for write: %s\n", name, dest_path, strerror(errno)); + goto done2; + } + success = mzExtractZipEntryToFile(za, entry, fd); + if (ota_fsync(fd) == -1) { + printf("fsync of \"%s\" failed: %s\n", dest_path, strerror(errno)); + success = false; + } + if (ota_close(fd) == -1) { + printf("close of \"%s\" failed: %s\n", dest_path, strerror(errno)); + success = false; + } + } + + done2: + free(zip_path); + free(dest_path); + return StringValue(strdup(success ? "t" : "")); + } else { + // The one-argument version returns the contents of the file + // as the result. + + char* zip_path; + if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL; + + Value* v = reinterpret_cast<Value*>(malloc(sizeof(Value))); + v->type = VAL_BLOB; + v->size = -1; + v->data = NULL; + + ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip; + const ZipEntry* entry = mzFindZipEntry(za, zip_path); + if (entry == NULL) { + printf("%s: no %s in package\n", name, zip_path); + goto done1; + } + + v->size = mzGetZipEntryUncompLen(entry); + v->data = reinterpret_cast<char*>(malloc(v->size)); + if (v->data == NULL) { + printf("%s: failed to allocate %ld bytes for %s\n", + name, (long)v->size, zip_path); + goto done1; + } + + success = mzExtractZipEntryToBuffer(za, entry, + (unsigned char *)v->data); + + done1: + free(zip_path); + if (!success) { + free(v->data); + v->data = NULL; + v->size = -1; + } + return v; + } +} + +// Create all parent directories of name, if necessary. +static int make_parents(char* name) { + char* p; + for (p = name + (strlen(name)-1); p > name; --p) { + if (*p != '/') continue; + *p = '\0'; + if (make_parents(name) < 0) return -1; + int result = mkdir(name, 0700); + if (result == 0) printf("created [%s]\n", name); + *p = '/'; + if (result == 0 || errno == EEXIST) { + // successfully created or already existed; we're done + return 0; + } else { + printf("failed to mkdir %s: %s\n", name, strerror(errno)); + return -1; + } + } + return 0; +} + +// symlink target src1 src2 ... +// unlinks any previously existing src1, src2, etc before creating symlinks. +Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc == 0) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1+ args, got %d", name, argc); + } + char* target; + target = Evaluate(state, argv[0]); + if (target == NULL) return NULL; + + char** srcs = ReadVarArgs(state, argc-1, argv+1); + if (srcs == NULL) { + free(target); + return NULL; + } + + int bad = 0; + int i; + for (i = 0; i < argc-1; ++i) { + if (unlink(srcs[i]) < 0) { + if (errno != ENOENT) { + printf("%s: failed to remove %s: %s\n", + name, srcs[i], strerror(errno)); + ++bad; + } + } + if (make_parents(srcs[i])) { + printf("%s: failed to symlink %s to %s: making parents failed\n", + name, srcs[i], target); + ++bad; + } + if (symlink(target, srcs[i]) < 0) { + printf("%s: failed to symlink %s to %s: %s\n", + name, srcs[i], target, strerror(errno)); + ++bad; + } + free(srcs[i]); + } + free(srcs); + if (bad) { + return ErrorAbort(state, kSymlinkFailure, "%s: some symlinks failed", name); + } + return StringValue(strdup("")); +} + +struct perm_parsed_args { + bool has_uid; + uid_t uid; + bool has_gid; + gid_t gid; + bool has_mode; + mode_t mode; + bool has_fmode; + mode_t fmode; + bool has_dmode; + mode_t dmode; + bool has_selabel; + char* selabel; + bool has_capabilities; + uint64_t capabilities; +}; + +static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) { + int i; + struct perm_parsed_args parsed; + int bad = 0; + static int max_warnings = 20; + + memset(&parsed, 0, sizeof(parsed)); + + for (i = 1; i < argc; i += 2) { + if (strcmp("uid", args[i]) == 0) { + int64_t uid; + if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) { + parsed.uid = uid; + parsed.has_uid = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("gid", args[i]) == 0) { + int64_t gid; + if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) { + parsed.gid = gid; + parsed.has_gid = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("mode", args[i]) == 0) { + int32_t mode; + if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { + parsed.mode = mode; + parsed.has_mode = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("dmode", args[i]) == 0) { + int32_t mode; + if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { + parsed.dmode = mode; + parsed.has_dmode = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("fmode", args[i]) == 0) { + int32_t mode; + if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) { + parsed.fmode = mode; + parsed.has_fmode = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("capabilities", args[i]) == 0) { + int64_t capabilities; + if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) { + parsed.capabilities = capabilities; + parsed.has_capabilities = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (strcmp("selabel", args[i]) == 0) { + if (args[i+1][0] != '\0') { + parsed.selabel = args[i+1]; + parsed.has_selabel = true; + } else { + uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]); + bad++; + } + continue; + } + if (max_warnings != 0) { + printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]); + max_warnings--; + if (max_warnings == 0) { + printf("ParsedPermArgs: suppressing further warnings\n"); + } + } + } + return parsed; +} + +static int ApplyParsedPerms( + State * state, + const char* filename, + const struct stat *statptr, + struct perm_parsed_args parsed) +{ + int bad = 0; + + if (parsed.has_selabel) { + if (lsetfilecon(filename, parsed.selabel) != 0) { + uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n", + filename, parsed.selabel, strerror(errno)); + bad++; + } + } + + /* ignore symlinks */ + if (S_ISLNK(statptr->st_mode)) { + return bad; + } + + if (parsed.has_uid) { + if (chown(filename, parsed.uid, -1) < 0) { + uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n", + filename, parsed.uid, strerror(errno)); + bad++; + } + } + + if (parsed.has_gid) { + if (chown(filename, -1, parsed.gid) < 0) { + uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n", + filename, parsed.gid, strerror(errno)); + bad++; + } + } + + if (parsed.has_mode) { + if (chmod(filename, parsed.mode) < 0) { + uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", + filename, parsed.mode, strerror(errno)); + bad++; + } + } + + if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) { + if (chmod(filename, parsed.dmode) < 0) { + uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", + filename, parsed.dmode, strerror(errno)); + bad++; + } + } + + if (parsed.has_fmode && S_ISREG(statptr->st_mode)) { + if (chmod(filename, parsed.fmode) < 0) { + uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n", + filename, parsed.fmode, strerror(errno)); + bad++; + } + } + + if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) { + if (parsed.capabilities == 0) { + if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) { + // Report failure unless it's ENODATA (attribute not set) + uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n", + filename, parsed.capabilities, strerror(errno)); + bad++; + } + } else { + struct vfs_cap_data cap_data; + memset(&cap_data, 0, sizeof(cap_data)); + cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE; + cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff); + cap_data.data[0].inheritable = 0; + cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32); + cap_data.data[1].inheritable = 0; + if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) { + uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n", + filename, parsed.capabilities, strerror(errno)); + bad++; + } + } + } + + return bad; +} + +// nftw doesn't allow us to pass along context, so we need to use +// global variables. *sigh* +static struct perm_parsed_args recursive_parsed_args; +static State* recursive_state; + +static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr, + int fileflags, struct FTW *pfwt) { + return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args); +} + +static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) { + int bad = 0; + struct stat sb; + Value* result = NULL; + + bool recursive = (strcmp(name, "set_metadata_recursive") == 0); + + if ((argc % 2) != 1) { + return ErrorAbort(state, kArgsParsingFailure, + "%s() expects an odd number of arguments, got %d", name, argc); + } + + char** args = ReadVarArgs(state, argc, argv); + if (args == NULL) return NULL; + + if (lstat(args[0], &sb) == -1) { + result = ErrorAbort(state, kSetMetadataFailure, "%s: Error on lstat of \"%s\": %s", + name, args[0], strerror(errno)); + goto done; + } + + { + struct perm_parsed_args parsed = ParsePermArgs(state, argc, args); + + if (recursive) { + recursive_parsed_args = parsed; + recursive_state = state; + bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS); + memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args)); + recursive_state = NULL; + } else { + bad += ApplyParsedPerms(state, args[0], &sb, parsed); + } + } + +done: + for (int i = 0; i < argc; ++i) { + free(args[i]); + } + free(args); + + if (result != NULL) { + return result; + } + + if (bad > 0) { + return ErrorAbort(state, kSetMetadataFailure, "%s: some changes failed", name); + } + + return StringValue(strdup("")); +} + +Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + char* key = Evaluate(state, argv[0]); + if (key == NULL) return NULL; + + char value[PROPERTY_VALUE_MAX]; + property_get(key, value, ""); + free(key); + + return StringValue(strdup(value)); +} + + +// file_getprop(file, key) +// +// interprets 'file' as a getprop-style file (key=value pairs, one +// per line. # comment lines,blank lines, lines without '=' ignored), +// and returns the value for 'key' (or "" if it isn't defined). +Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + char* buffer = NULL; + char* filename; + char* key; + if (ReadArgs(state, argv, 2, &filename, &key) < 0) { + return NULL; + } + + struct stat st; + if (stat(filename, &st) < 0) { + ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name, filename, + strerror(errno)); + goto done; + } + +#define MAX_FILE_GETPROP_SIZE 65536 + + if (st.st_size > MAX_FILE_GETPROP_SIZE) { + ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %d)", filename, name, + MAX_FILE_GETPROP_SIZE); + goto done; + } + + buffer = reinterpret_cast<char*>(malloc(st.st_size+1)); + if (buffer == NULL) { + ErrorAbort(state, kFileGetPropFailure, "%s: failed to alloc %lld bytes", name, + (long long)st.st_size+1); + goto done; + } + + FILE* f; + f = fopen(filename, "rb"); + if (f == NULL) { + ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name, filename, + strerror(errno)); + goto done; + } + + if (ota_fread(buffer, 1, st.st_size, f) != static_cast<size_t>(st.st_size)) { + ErrorAbort(state, kFreadFailure, "%s: failed to read %lld bytes from %s", + name, (long long)st.st_size+1, filename); + fclose(f); + goto done; + } + buffer[st.st_size] = '\0'; + + fclose(f); + + char* line; + line = strtok(buffer, "\n"); + do { + // skip whitespace at start of line + while (*line && isspace(*line)) ++line; + + // comment or blank line: skip to next line + if (*line == '\0' || *line == '#') continue; + + char* equal = strchr(line, '='); + if (equal == NULL) { + continue; + } + + // trim whitespace between key and '=' + char* key_end = equal-1; + while (key_end > line && isspace(*key_end)) --key_end; + key_end[1] = '\0'; + + // not the key we're looking for + if (strcmp(key, line) != 0) continue; + + // skip whitespace after the '=' to the start of the value + char* val_start = equal+1; + while(*val_start && isspace(*val_start)) ++val_start; + + // trim trailing whitespace + char* val_end = val_start + strlen(val_start)-1; + while (val_end > val_start && isspace(*val_end)) --val_end; + val_end[1] = '\0'; + + result = strdup(val_start); + break; + + } while ((line = strtok(NULL, "\n"))); + + if (result == NULL) result = strdup(""); + + done: + free(filename); + free(key); + free(buffer); + return StringValue(result); +} + +// write_raw_image(filename_or_blob, partition) +Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) { + char* result = NULL; + + Value* partition_value; + Value* contents; + if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) { + return NULL; + } + + char* partition = NULL; + if (partition_value->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "partition argument to %s must be string", name); + goto done; + } + partition = partition_value->data; + if (strlen(partition) == 0) { + ErrorAbort(state, kArgsParsingFailure, "partition argument to %s can't be empty", name); + goto done; + } + if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) { + ErrorAbort(state, kArgsParsingFailure, "file argument to %s can't be empty", name); + goto done; + } + + mtd_scan_partitions(); + const MtdPartition* mtd; + mtd = mtd_find_partition_by_name(partition); + if (mtd == NULL) { + printf("%s: no mtd partition named \"%s\"\n", name, partition); + result = strdup(""); + goto done; + } + + MtdWriteContext* ctx; + ctx = mtd_write_partition(mtd); + if (ctx == NULL) { + printf("%s: can't write mtd partition \"%s\"\n", + name, partition); + result = strdup(""); + goto done; + } + + bool success; + + if (contents->type == VAL_STRING) { + // we're given a filename as the contents + char* filename = contents->data; + FILE* f = ota_fopen(filename, "rb"); + if (f == NULL) { + printf("%s: can't open %s: %s\n", name, filename, strerror(errno)); + result = strdup(""); + goto done; + } + + success = true; + char* buffer = reinterpret_cast<char*>(malloc(BUFSIZ)); + int read; + while (success && (read = ota_fread(buffer, 1, BUFSIZ, f)) > 0) { + int wrote = mtd_write_data(ctx, buffer, read); + success = success && (wrote == read); + } + free(buffer); + ota_fclose(f); + } else { + // we're given a blob as the contents + ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size); + success = (wrote == contents->size); + } + if (!success) { + printf("mtd_write_data to %s failed: %s\n", + partition, strerror(errno)); + } + + if (mtd_erase_blocks(ctx, -1) == -1) { + printf("%s: error erasing blocks of %s\n", name, partition); + } + if (mtd_write_close(ctx) != 0) { + printf("%s: error closing write of %s\n", name, partition); + } + + printf("%s %s partition\n", + success ? "wrote" : "failed to write", partition); + + result = success ? partition : strdup(""); + +done: + if (result != partition) FreeValue(partition_value); + FreeValue(contents); + return StringValue(result); +} + +// apply_patch_space(bytes) +Value* ApplyPatchSpaceFn(const char* name, State* state, + int argc, Expr* argv[]) { + char* bytes_str; + if (ReadArgs(state, argv, 1, &bytes_str) < 0) { + return NULL; + } + + size_t bytes; + if (!android::base::ParseUint(bytes_str, &bytes)) { + ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count\n\n", + name, bytes_str); + free(bytes_str); + return nullptr; + } + + return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t")); +} + +// apply_patch(file, size, init_sha1, tgt_sha1, patch) + +Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc < 6 || (argc % 2) == 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 6 args and an " + "even number, got %d", name, argc); + } + + char* source_filename; + char* target_filename; + char* target_sha1; + char* target_size_str; + if (ReadArgs(state, argv, 4, &source_filename, &target_filename, + &target_sha1, &target_size_str) < 0) { + return NULL; + } + + size_t target_size; + if (!android::base::ParseUint(target_size_str, &target_size)) { + ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count", + name, target_size_str); + free(source_filename); + free(target_filename); + free(target_sha1); + free(target_size_str); + return nullptr; + } + + int patchcount = (argc-4) / 2; + std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc-4, argv+4), + free); + if (!arg_values) { + return nullptr; + } + std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patch_shas; + std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patches; + // Protect values by unique_ptrs first to get rid of memory leak. + for (int i = 0; i < patchcount * 2; i += 2) { + patch_shas.emplace_back(arg_values.get()[i], FreeValue); + patches.emplace_back(arg_values.get()[i+1], FreeValue); + } + + for (int i = 0; i < patchcount; ++i) { + if (patch_shas[i]->type != VAL_STRING) { + ErrorAbort(state, kArgsParsingFailure, "%s(): sha-1 #%d is not string", name, i); + return nullptr; + } + if (patches[i]->type != VAL_BLOB) { + ErrorAbort(state, kArgsParsingFailure, "%s(): patch #%d is not blob", name, i); + return nullptr; + } + } + + std::vector<char*> patch_sha_str; + std::vector<Value*> patch_ptrs; + for (int i = 0; i < patchcount; ++i) { + patch_sha_str.push_back(patch_shas[i]->data); + patch_ptrs.push_back(patches[i].get()); + } + + int result = applypatch(source_filename, target_filename, + target_sha1, target_size, + patchcount, patch_sha_str.data(), patch_ptrs.data(), NULL); + + return StringValue(strdup(result == 0 ? "t" : "")); +} + +// apply_patch_check(file, [sha1_1, ...]) +Value* ApplyPatchCheckFn(const char* name, State* state, + int argc, Expr* argv[]) { + if (argc < 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 1 arg, got %d", + name, argc); + } + + char* filename; + if (ReadArgs(state, argv, 1, &filename) < 0) { + return NULL; + } + + int patchcount = argc-1; + char** sha1s = ReadVarArgs(state, argc-1, argv+1); + + int result = applypatch_check(filename, patchcount, sha1s); + + int i; + for (i = 0; i < patchcount; ++i) { + free(sha1s[i]); + } + free(sha1s); + + return StringValue(strdup(result == 0 ? "t" : "")); +} + +// This is the updater side handler for ui_print() in edify script. Contents +// will be sent over to the recovery side for on-screen display. +Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) { + char** args = ReadVarArgs(state, argc, argv); + if (args == NULL) { + return NULL; + } + + std::string buffer; + for (int i = 0; i < argc; ++i) { + buffer += args[i]; + free(args[i]); + } + free(args); + + buffer += "\n"; + uiPrint(state, buffer); + return StringValue(strdup(buffer.c_str())); +} + +Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 0) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc); + } + fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n"); + return StringValue(strdup("t")); +} + +Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc < 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name); + } + char** args = ReadVarArgs(state, argc, argv); + if (args == NULL) { + return NULL; + } + + char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1))); + memcpy(args2, args, sizeof(char*) * argc); + args2[argc] = NULL; + + printf("about to run program [%s] with %d args\n", args2[0], argc); + + pid_t child = fork(); + if (child == 0) { + execv(args2[0], args2); + printf("run_program: execv failed: %s\n", strerror(errno)); + _exit(1); + } + int status; + waitpid(child, &status, 0); + if (WIFEXITED(status)) { + if (WEXITSTATUS(status) != 0) { + printf("run_program: child exited with status %d\n", + WEXITSTATUS(status)); + } + } else if (WIFSIGNALED(status)) { + printf("run_program: child terminated by signal %d\n", + WTERMSIG(status)); + } + + int i; + for (i = 0; i < argc; ++i) { + free(args[i]); + } + free(args); + free(args2); + + char buffer[20]; + sprintf(buffer, "%d", status); + + return StringValue(strdup(buffer)); +} + +// sha1_check(data) +// to return the sha1 of the data (given in the format returned by +// read_file). +// +// sha1_check(data, sha1_hex, [sha1_hex, ...]) +// returns the sha1 of the file if it matches any of the hex +// strings passed, or "" if it does not equal any of them. +// +Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc < 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name); + } + + std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc, argv), free); + if (arg_values == nullptr) { + return nullptr; + } + std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> args; + for (int i = 0; i < argc; ++i) { + args.emplace_back(arg_values.get()[i], FreeValue); + } + + if (args[0]->size < 0) { + return StringValue(strdup("")); + } + uint8_t digest[SHA_DIGEST_LENGTH]; + SHA1(reinterpret_cast<uint8_t*>(args[0]->data), args[0]->size, digest); + + if (argc == 1) { + return StringValue(PrintSha1(digest)); + } + + int i; + uint8_t arg_digest[SHA_DIGEST_LENGTH]; + for (i = 1; i < argc; ++i) { + if (args[i]->type != VAL_STRING) { + printf("%s(): arg %d is not a string; skipping", + name, i); + } else if (ParseSha1(args[i]->data, arg_digest) != 0) { + // Warn about bad args and skip them. + printf("%s(): error parsing \"%s\" as sha-1; skipping", + name, args[i]->data); + } else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) { + break; + } + } + if (i >= argc) { + // Didn't match any of the hex strings; return false. + return StringValue(strdup("")); + } + // Found a match. + return args[i].release(); +} + +// Read a local file and return its contents (the Value* returned +// is actually a FileContents*). +Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + char* filename; + if (ReadArgs(state, argv, 1, &filename) < 0) return NULL; + + Value* v = static_cast<Value*>(malloc(sizeof(Value))); + if (v == nullptr) { + return nullptr; + } + v->type = VAL_BLOB; + v->size = -1; + v->data = nullptr; + + FileContents fc; + if (LoadFileContents(filename, &fc) != 0) { + v->data = static_cast<char*>(malloc(fc.data.size())); + if (v->data != nullptr) { + memcpy(v->data, fc.data.data(), fc.data.size()); + v->size = fc.data.size(); + } + } + free(filename); + return v; +} + +// Immediately reboot the device. Recovery is not finished normally, +// so if you reboot into recovery it will re-start applying the +// current package (because nothing has cleared the copy of the +// arguments stored in the BCB). +// +// The argument is the partition name passed to the android reboot +// property. It can be "recovery" to boot from the recovery +// partition, or "" (empty string) to boot from the regular boot +// partition. +Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + + char* filename; + char* property; + if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL; + + char buffer[80]; + + // zero out the 'command' field of the bootloader message. + memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command)); + FILE* f = fopen(filename, "r+b"); + fseek(f, offsetof(struct bootloader_message, command), SEEK_SET); + ota_fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f); + fclose(f); + free(filename); + + strcpy(buffer, "reboot,"); + if (property != NULL) { + strncat(buffer, property, sizeof(buffer)-10); + } + + property_set(ANDROID_RB_PROPERTY, buffer); + + sleep(5); + free(property); + ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name); + return NULL; +} + +// Store a string value somewhere that future invocations of recovery +// can access it. This value is called the "stage" and can be used to +// drive packages that need to do reboots in the middle of +// installation and keep track of where they are in the multi-stage +// install. +// +// The first argument is the block device for the misc partition +// ("/misc" in the fstab), which is where this value is stored. The +// second argument is the string to store; it should not exceed 31 +// bytes. +Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + + char* filename; + char* stagestr; + if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL; + + // Store this value in the misc partition, immediately after the + // bootloader message that the main recovery uses to save its + // arguments in case of the device restarting midway through + // package installation. + FILE* f = fopen(filename, "r+b"); + fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET); + int to_write = strlen(stagestr)+1; + int max_size = sizeof(((struct bootloader_message*)0)->stage); + if (to_write > max_size) { + to_write = max_size; + stagestr[max_size-1] = 0; + } + ota_fwrite(stagestr, to_write, 1, f); + fclose(f); + + free(stagestr); + return StringValue(filename); +} + +// Return the value most recently saved with SetStageFn. The argument +// is the block device for the misc partition. +Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 1) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc); + } + + char* filename; + if (ReadArgs(state, argv, 1, &filename) < 0) return NULL; + + char buffer[sizeof(((struct bootloader_message*)0)->stage)]; + FILE* f = fopen(filename, "rb"); + fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET); + ota_fread(buffer, sizeof(buffer), 1, f); + fclose(f); + buffer[sizeof(buffer)-1] = '\0'; + + return StringValue(strdup(buffer)); +} + +Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 2) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc); + } + + char* filename; + char* len_str; + if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL; + + size_t len; + android::base::ParseUint(len_str, &len); + int fd = ota_open(filename, O_WRONLY, 0644); + int success = wipe_block_device(fd, len); + + free(filename); + free(len_str); + + ota_close(fd); + + return StringValue(strdup(success ? "t" : "")); +} + +Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc != 0) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc); + } + UpdaterInfo* ui = (UpdaterInfo*)(state->cookie); + fprintf(ui->cmd_pipe, "enable_reboot\n"); + return StringValue(strdup("t")); +} + +Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) { + if (argc == 0) { + return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %d", name, argc); + } + + char** args = ReadVarArgs(state, argc, argv); + if (args == NULL) { + return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name); + } + + char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1))); + // Tune2fs expects the program name as its args[0] + args2[0] = strdup(name); + for (int i = 0; i < argc; ++i) { + args2[i + 1] = args[i]; + } + int result = tune2fs_main(argc + 1, args2); + for (int i = 0; i < argc; ++i) { + free(args[i]); + } + free(args); + + free(args2[0]); + free(args2); + if (result != 0) { + return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d", + name, result); + } + return StringValue(strdup("t")); +} + +void RegisterInstallFunctions() { + RegisterFunction("mount", MountFn); + RegisterFunction("is_mounted", IsMountedFn); + RegisterFunction("unmount", UnmountFn); + RegisterFunction("format", FormatFn); + RegisterFunction("show_progress", ShowProgressFn); + RegisterFunction("set_progress", SetProgressFn); + RegisterFunction("delete", DeleteFn); + RegisterFunction("delete_recursive", DeleteFn); + RegisterFunction("package_extract_dir", PackageExtractDirFn); + RegisterFunction("package_extract_file", PackageExtractFileFn); + RegisterFunction("symlink", SymlinkFn); + + // Usage: + // set_metadata("filename", "key1", "value1", "key2", "value2", ...) + // Example: + // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0); + RegisterFunction("set_metadata", SetMetadataFn); + + // Usage: + // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...) + // Example: + // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0); + RegisterFunction("set_metadata_recursive", SetMetadataFn); + + RegisterFunction("getprop", GetPropFn); + RegisterFunction("file_getprop", FileGetPropFn); + RegisterFunction("write_raw_image", WriteRawImageFn); + + RegisterFunction("apply_patch", ApplyPatchFn); + RegisterFunction("apply_patch_check", ApplyPatchCheckFn); + RegisterFunction("apply_patch_space", ApplyPatchSpaceFn); + + RegisterFunction("wipe_block_device", WipeBlockDeviceFn); + + RegisterFunction("read_file", ReadFileFn); + RegisterFunction("sha1_check", Sha1CheckFn); + RegisterFunction("rename", RenameFn); + + RegisterFunction("wipe_cache", WipeCacheFn); + + RegisterFunction("ui_print", UIPrintFn); + + RegisterFunction("run_program", RunProgramFn); + + RegisterFunction("reboot_now", RebootNowFn); + RegisterFunction("get_stage", GetStageFn); + RegisterFunction("set_stage", SetStageFn); + + RegisterFunction("enable_reboot", EnableRebootFn); + RegisterFunction("tune2fs", Tune2FsFn); +} diff --git a/updater/install.h b/updater/install.h index 659c8b41c..70e343404 100644 --- a/updater/install.h +++ b/updater/install.h @@ -19,6 +19,9 @@ void RegisterInstallFunctions(); +// uiPrintf function prints msg to screen as well as logs +void uiPrintf(State* state, const char* format, ...); + static int make_parents(char* name); #endif diff --git a/updater/updater.c b/updater/updater.c deleted file mode 100644 index 661f69587..000000000 --- a/updater/updater.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> - -#include "edify/expr.h" -#include "updater.h" -#include "install.h" -#include "blockimg.h" -#include "minzip/Zip.h" -#include "minzip/SysUtil.h" - -// Generated by the makefile, this function defines the -// RegisterDeviceExtensions() function, which calls all the -// registration functions for device-specific extensions. -#include "register.inc" - -// Where in the package we expect to find the edify script to execute. -// (Note it's "updateR-script", not the older "update-script".) -#define SCRIPT_NAME "META-INF/com/google/android/updater-script" - -struct selabel_handle *sehandle; - -int main(int argc, char** argv) { - // Various things log information to stdout or stderr more or less - // at random (though we've tried to standardize on stdout). The - // log file makes more sense if buffering is turned off so things - // appear in the right order. - setbuf(stdout, NULL); - setbuf(stderr, NULL); - - if (argc != 4) { - printf("unexpected number of arguments (%d)\n", argc); - return 1; - } - - char* version = argv[1]; - if ((version[0] != '1' && version[0] != '2' && version[0] != '3') || - version[1] != '\0') { - // We support version 1, 2, or 3. - printf("wrong updater binary API; expected 1, 2, or 3; " - "got %s\n", - argv[1]); - return 2; - } - - // Set up the pipe for sending commands back to the parent process. - - int fd = atoi(argv[2]); - FILE* cmd_pipe = fdopen(fd, "wb"); - setlinebuf(cmd_pipe); - - // Extract the script from the package. - - const char* package_filename = argv[3]; - MemMapping map; - if (sysMapFile(package_filename, &map) != 0) { - printf("failed to map package %s\n", argv[3]); - return 3; - } - ZipArchive za; - int err; - err = mzOpenZipArchive(map.addr, map.length, &za); - if (err != 0) { - printf("failed to open package %s: %s\n", - argv[3], strerror(err)); - return 3; - } - - const ZipEntry* script_entry = mzFindZipEntry(&za, SCRIPT_NAME); - if (script_entry == NULL) { - printf("failed to find %s in %s\n", SCRIPT_NAME, package_filename); - return 4; - } - - char* script = malloc(script_entry->uncompLen+1); - if (!mzReadZipEntry(&za, script_entry, script, script_entry->uncompLen)) { - printf("failed to read script from package\n"); - return 5; - } - script[script_entry->uncompLen] = '\0'; - - // Configure edify's functions. - - RegisterBuiltins(); - RegisterInstallFunctions(); - RegisterBlockImageFunctions(); - RegisterDeviceExtensions(); - FinishRegistration(); - - // Parse the script. - - Expr* root; - int error_count = 0; - int error = parse_string(script, &root, &error_count); - if (error != 0 || error_count > 0) { - printf("%d parse errors\n", error_count); - return 6; - } - - struct selinux_opt seopts[] = { - { SELABEL_OPT_PATH, "/file_contexts" } - }; - - sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1); - - if (!sehandle) { - fprintf(cmd_pipe, "ui_print Warning: No file_contexts\n"); - } - - // Evaluate the parsed script. - - UpdaterInfo updater_info; - updater_info.cmd_pipe = cmd_pipe; - updater_info.package_zip = &za; - updater_info.version = atoi(version); - updater_info.package_zip_addr = map.addr; - updater_info.package_zip_len = map.length; - - State state; - state.cookie = &updater_info; - state.script = script; - state.errmsg = NULL; - - char* result = Evaluate(&state, root); - if (result == NULL) { - if (state.errmsg == NULL) { - printf("script aborted (no error message)\n"); - fprintf(cmd_pipe, "ui_print script aborted (no error message)\n"); - } else { - printf("script aborted: %s\n", state.errmsg); - char* line = strtok(state.errmsg, "\n"); - while (line) { - fprintf(cmd_pipe, "ui_print %s\n", line); - line = strtok(NULL, "\n"); - } - fprintf(cmd_pipe, "ui_print\n"); - } - free(state.errmsg); - return 7; - } else { - fprintf(cmd_pipe, "ui_print script succeeded: result was [%s]\n", result); - free(result); - } - - if (updater_info.package_zip) { - mzCloseZipArchive(updater_info.package_zip); - } - sysReleaseMap(&map); - free(script); - - return 0; -} diff --git a/updater/updater.cpp b/updater/updater.cpp new file mode 100644 index 000000000..e956dd557 --- /dev/null +++ b/updater/updater.cpp @@ -0,0 +1,203 @@ +/* + * Copyright (C) 2009 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> + +#include "edify/expr.h" +#include "updater.h" +#include "install.h" +#include "blockimg.h" +#include "minzip/Zip.h" +#include "minzip/SysUtil.h" +#include "config.h" + +// Generated by the makefile, this function defines the +// RegisterDeviceExtensions() function, which calls all the +// registration functions for device-specific extensions. +#include "register.inc" + +// Where in the package we expect to find the edify script to execute. +// (Note it's "updateR-script", not the older "update-script".) +#define SCRIPT_NAME "META-INF/com/google/android/updater-script" + +extern bool have_eio_error; + +struct selabel_handle *sehandle; + +int main(int argc, char** argv) { + // Various things log information to stdout or stderr more or less + // at random (though we've tried to standardize on stdout). The + // log file makes more sense if buffering is turned off so things + // appear in the right order. + setbuf(stdout, NULL); + setbuf(stderr, NULL); + + if (argc != 4 && argc != 5) { + printf("unexpected number of arguments (%d)\n", argc); + return 1; + } + + char* version = argv[1]; + if ((version[0] != '1' && version[0] != '2' && version[0] != '3') || + version[1] != '\0') { + // We support version 1, 2, or 3. + printf("wrong updater binary API; expected 1, 2, or 3; " + "got %s\n", + argv[1]); + return 2; + } + + // Set up the pipe for sending commands back to the parent process. + + int fd = atoi(argv[2]); + FILE* cmd_pipe = fdopen(fd, "wb"); + setlinebuf(cmd_pipe); + + // Extract the script from the package. + + const char* package_filename = argv[3]; + MemMapping map; + if (sysMapFile(package_filename, &map) != 0) { + printf("failed to map package %s\n", argv[3]); + return 3; + } + ZipArchive za; + int err; + err = mzOpenZipArchive(map.addr, map.length, &za); + if (err != 0) { + printf("failed to open package %s: %s\n", + argv[3], strerror(err)); + return 3; + } + ota_io_init(&za); + + const ZipEntry* script_entry = mzFindZipEntry(&za, SCRIPT_NAME); + if (script_entry == NULL) { + printf("failed to find %s in %s\n", SCRIPT_NAME, package_filename); + return 4; + } + + char* script = reinterpret_cast<char*>(malloc(script_entry->uncompLen+1)); + if (!mzReadZipEntry(&za, script_entry, script, script_entry->uncompLen)) { + printf("failed to read script from package\n"); + return 5; + } + script[script_entry->uncompLen] = '\0'; + + // Configure edify's functions. + + RegisterBuiltins(); + RegisterInstallFunctions(); + RegisterBlockImageFunctions(); + RegisterDeviceExtensions(); + FinishRegistration(); + + // Parse the script. + + Expr* root; + int error_count = 0; + int error = parse_string(script, &root, &error_count); + if (error != 0 || error_count > 0) { + printf("%d parse errors\n", error_count); + return 6; + } + + struct selinux_opt seopts[] = { + { SELABEL_OPT_PATH, "/file_contexts" } + }; + + sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1); + + if (!sehandle) { + fprintf(cmd_pipe, "ui_print Warning: No file_contexts\n"); + } + + // Evaluate the parsed script. + + UpdaterInfo updater_info; + updater_info.cmd_pipe = cmd_pipe; + updater_info.package_zip = &za; + updater_info.version = atoi(version); + updater_info.package_zip_addr = map.addr; + updater_info.package_zip_len = map.length; + + State state; + state.cookie = &updater_info; + state.script = script; + state.errmsg = NULL; + + if (argc == 5) { + if (strcmp(argv[4], "retry") == 0) { + state.is_retry = true; + } else { + printf("unexpected argument: %s", argv[4]); + } + } + + char* result = Evaluate(&state, root); + + if (have_eio_error) { + fprintf(cmd_pipe, "retry_update\n"); + } + + if (result == NULL) { + if (state.errmsg == NULL) { + printf("script aborted (no error message)\n"); + fprintf(cmd_pipe, "ui_print script aborted (no error message)\n"); + } else { + printf("script aborted: %s\n", state.errmsg); + char* line = strtok(state.errmsg, "\n"); + while (line) { + // Parse the error code in abort message. + // Example: "E30: This package is for bullhead devices." + if (*line == 'E') { + if (sscanf(line, "E%u: ", &state.error_code) != 1) { + printf("Failed to parse error code: [%s]\n", line); + } + } + fprintf(cmd_pipe, "ui_print %s\n", line); + line = strtok(NULL, "\n"); + } + fprintf(cmd_pipe, "ui_print\n"); + } + + if (state.error_code != kNoError) { + fprintf(cmd_pipe, "log error: %d\n", state.error_code); + // Cause code should provide additional information about the abort; + // report only when an error exists. + if (state.cause_code != kNoCause) { + fprintf(cmd_pipe, "log cause: %d\n", state.cause_code); + } + } + + free(state.errmsg); + return 7; + } else { + fprintf(cmd_pipe, "ui_print script succeeded: result was [%s]\n", result); + free(result); + } + + if (updater_info.package_zip) { + mzCloseZipArchive(updater_info.package_zip); + } + sysReleaseMap(&map); + free(script); + + return 0; +} diff --git a/verifier.cpp b/verifier.cpp index 61e5adf0b..16cc7cf03 100644 --- a/verifier.cpp +++ b/verifier.cpp @@ -14,25 +14,27 @@ * limitations under the License. */ -#include "asn1_decoder.h" -#include "common.h" -#include "ui.h" -#include "verifier.h" - -#include "mincrypt/dsa_sig.h" -#include "mincrypt/p256.h" -#include "mincrypt/p256_ecdsa.h" -#include "mincrypt/rsa.h" -#include "mincrypt/sha.h" -#include "mincrypt/sha256.h" - #include <errno.h> #include <malloc.h> #include <stdio.h> #include <string.h> +#include <algorithm> +#include <memory> + +#include <openssl/ecdsa.h> +#include <openssl/obj_mac.h> + +#include "asn1_decoder.h" +#include "common.h" +#include "print_sha1.h" +#include "ui.h" +#include "verifier.h" + extern RecoveryUI* ui; +static constexpr size_t MiB = 1024 * 1024; + /* * Simple version of PKCS#7 SignedData extraction. This extracts the * signature OCTET STRING to be used for signature verification. @@ -113,7 +115,7 @@ static bool read_pkcs7(uint8_t* pkcs7_der, size_t pkcs7_der_len, uint8_t** sig_d // or no key matches the signature). int verify_file(unsigned char* addr, size_t length, - const Certificate* pKeys, unsigned int numKeys) { + const std::vector<Certificate>& keys) { ui->SetProgress(0.0); // An archive with a whole-file signature will end in six bytes: @@ -176,8 +178,7 @@ int verify_file(unsigned char* addr, size_t length, return VERIFY_FAILURE; } - size_t i; - for (i = 4; i < eocd_size-3; ++i) { + for (size_t i = 4; i < eocd_size-3; ++i) { if (eocd[i ] == 0x50 && eocd[i+1] == 0x4b && eocd[i+2] == 0x05 && eocd[i+3] == 0x06) { // if the sequence $50 $4b $05 $06 appears anywhere after @@ -189,30 +190,30 @@ int verify_file(unsigned char* addr, size_t length, } } -#define BUFFER_SIZE 4096 - bool need_sha1 = false; bool need_sha256 = false; - for (i = 0; i < numKeys; ++i) { - switch (pKeys[i].hash_len) { - case SHA_DIGEST_SIZE: need_sha1 = true; break; - case SHA256_DIGEST_SIZE: need_sha256 = true; break; + for (const auto& key : keys) { + switch (key.hash_len) { + case SHA_DIGEST_LENGTH: need_sha1 = true; break; + case SHA256_DIGEST_LENGTH: need_sha256 = true; break; } } SHA_CTX sha1_ctx; SHA256_CTX sha256_ctx; - SHA_init(&sha1_ctx); - SHA256_init(&sha256_ctx); + SHA1_Init(&sha1_ctx); + SHA256_Init(&sha256_ctx); double frac = -1.0; size_t so_far = 0; while (so_far < signed_len) { - size_t size = signed_len - so_far; - if (size > BUFFER_SIZE) size = BUFFER_SIZE; + // On a Nexus 5X, experiment showed 16MiB beat 1MiB by 6% faster for a + // 1196MiB full OTA and 60% for an 89MiB incremental OTA. + // http://b/28135231. + size_t size = std::min(signed_len - so_far, 16 * MiB); - if (need_sha1) SHA_update(&sha1_ctx, addr + so_far, size); - if (need_sha256) SHA256_update(&sha256_ctx, addr + so_far, size); + if (need_sha1) SHA1_Update(&sha1_ctx, addr + so_far, size); + if (need_sha256) SHA256_Update(&sha256_ctx, addr + so_far, size); so_far += size; double f = so_far / (double)signed_len; @@ -222,15 +223,22 @@ int verify_file(unsigned char* addr, size_t length, } } - const uint8_t* sha1 = SHA_final(&sha1_ctx); - const uint8_t* sha256 = SHA256_final(&sha256_ctx); + uint8_t sha1[SHA_DIGEST_LENGTH]; + SHA1_Final(sha1, &sha1_ctx); + uint8_t sha256[SHA256_DIGEST_LENGTH]; + SHA256_Final(sha256, &sha256_ctx); - uint8_t* sig_der = NULL; + uint8_t* sig_der = nullptr; size_t sig_der_length = 0; + uint8_t* signature = eocd + eocd_size - signature_start; size_t signature_size = signature_start - FOOTER_SIZE; - if (!read_pkcs7(eocd + eocd_size - signature_start, signature_size, &sig_der, - &sig_der_length)) { + + LOGI("signature (offset: 0x%zx, length: %zu): %s\n", + length - signature_start, signature_size, + print_hex(signature, signature_size).c_str()); + + if (!read_pkcs7(signature, signature_size, &sig_der, &sig_der_length)) { LOGE("Could not find signature DER block\n"); return VERIFY_FAILURE; } @@ -240,25 +248,28 @@ int verify_file(unsigned char* addr, size_t length, * any key can match, we need to try each before determining a verification * failure has happened. */ - for (i = 0; i < numKeys; ++i) { + size_t i = 0; + for (const auto& key : keys) { const uint8_t* hash; - switch (pKeys[i].hash_len) { - case SHA_DIGEST_SIZE: hash = sha1; break; - case SHA256_DIGEST_SIZE: hash = sha256; break; - default: continue; + int hash_nid; + switch (key.hash_len) { + case SHA_DIGEST_LENGTH: + hash = sha1; + hash_nid = NID_sha1; + break; + case SHA256_DIGEST_LENGTH: + hash = sha256; + hash_nid = NID_sha256; + break; + default: + continue; } // The 6 bytes is the "(signature_start) $ff $ff (comment_size)" that // the signing tool appends after the signature itself. - if (pKeys[i].key_type == Certificate::RSA) { - if (sig_der_length < RSANUMBYTES) { - // "signature" block isn't big enough to contain an RSA block. - LOGI("signature is too short for RSA key %zu\n", i); - continue; - } - - if (!RSA_verify(pKeys[i].rsa, sig_der, RSANUMBYTES, - hash, pKeys[i].hash_len)) { + if (key.key_type == Certificate::KEY_TYPE_RSA) { + if (!RSA_verify(hash_nid, hash, key.hash_len, sig_der, + sig_der_length, key.rsa.get())) { LOGI("failed to verify against RSA key %zu\n", i); continue; } @@ -266,18 +277,10 @@ int verify_file(unsigned char* addr, size_t length, LOGI("whole-file signature verified against RSA key %zu\n", i); free(sig_der); return VERIFY_SUCCESS; - } else if (pKeys[i].key_type == Certificate::EC - && pKeys[i].hash_len == SHA256_DIGEST_SIZE) { - p256_int r, s; - if (!dsa_sig_unpack(sig_der, sig_der_length, &r, &s)) { - LOGI("Not a DSA signature block for EC key %zu\n", i); - continue; - } - - p256_int p256_hash; - p256_from_bin(hash, &p256_hash); - if (!p256_ecdsa_verify(&(pKeys[i].ec->x), &(pKeys[i].ec->y), - &p256_hash, &r, &s)) { + } else if (key.key_type == Certificate::KEY_TYPE_EC + && key.hash_len == SHA256_DIGEST_LENGTH) { + if (!ECDSA_verify(0, hash, key.hash_len, sig_der, + sig_der_length, key.ec.get())) { LOGI("failed to verify against EC key %zu\n", i); continue; } @@ -286,14 +289,160 @@ int verify_file(unsigned char* addr, size_t length, free(sig_der); return VERIFY_SUCCESS; } else { - LOGI("Unknown key type %d\n", pKeys[i].key_type); + LOGI("Unknown key type %d\n", key.key_type); } + i++; + } + + if (need_sha1) { + LOGI("SHA-1 digest: %s\n", print_hex(sha1, SHA_DIGEST_LENGTH).c_str()); + } + if (need_sha256) { + LOGI("SHA-256 digest: %s\n", print_hex(sha256, SHA256_DIGEST_LENGTH).c_str()); } free(sig_der); LOGE("failed to verify whole-file signature\n"); return VERIFY_FAILURE; } +std::unique_ptr<RSA, RSADeleter> parse_rsa_key(FILE* file, uint32_t exponent) { + // Read key length in words and n0inv. n0inv is a precomputed montgomery + // parameter derived from the modulus and can be used to speed up + // verification. n0inv is 32 bits wide here, assuming the verification logic + // uses 32 bit arithmetic. However, BoringSSL may use a word size of 64 bits + // internally, in which case we don't have a valid n0inv. Thus, we just + // ignore the montgomery parameters and have BoringSSL recompute them + // internally. If/When the speedup from using the montgomery parameters + // becomes relevant, we can add more sophisticated code here to obtain a + // 64-bit n0inv and initialize the montgomery parameters in the key object. + uint32_t key_len_words = 0; + uint32_t n0inv = 0; + if (fscanf(file, " %i , 0x%x", &key_len_words, &n0inv) != 2) { + return nullptr; + } + + if (key_len_words > 8192 / 32) { + LOGE("key length (%d) too large\n", key_len_words); + return nullptr; + } + + // Read the modulus. + std::unique_ptr<uint32_t[]> modulus(new uint32_t[key_len_words]); + if (fscanf(file, " , { %u", &modulus[0]) != 1) { + return nullptr; + } + for (uint32_t i = 1; i < key_len_words; ++i) { + if (fscanf(file, " , %u", &modulus[i]) != 1) { + return nullptr; + } + } + + // Cconvert from little-endian array of little-endian words to big-endian + // byte array suitable as input for BN_bin2bn. + std::reverse((uint8_t*)modulus.get(), + (uint8_t*)(modulus.get() + key_len_words)); + + // The next sequence of values is the montgomery parameter R^2. Since we + // generally don't have a valid |n0inv|, we ignore this (see comment above). + uint32_t rr_value; + if (fscanf(file, " } , { %u", &rr_value) != 1) { + return nullptr; + } + for (uint32_t i = 1; i < key_len_words; ++i) { + if (fscanf(file, " , %u", &rr_value) != 1) { + return nullptr; + } + } + if (fscanf(file, " } } ") != 0) { + return nullptr; + } + + // Initialize the key. + std::unique_ptr<RSA, RSADeleter> key(RSA_new()); + if (!key) { + return nullptr; + } + + key->n = BN_bin2bn((uint8_t*)modulus.get(), + key_len_words * sizeof(uint32_t), NULL); + if (!key->n) { + return nullptr; + } + + key->e = BN_new(); + if (!key->e || !BN_set_word(key->e, exponent)) { + return nullptr; + } + + return key; +} + +struct BNDeleter { + void operator()(BIGNUM* bn) { + BN_free(bn); + } +}; + +std::unique_ptr<EC_KEY, ECKEYDeleter> parse_ec_key(FILE* file) { + uint32_t key_len_bytes = 0; + if (fscanf(file, " %i", &key_len_bytes) != 1) { + return nullptr; + } + + std::unique_ptr<EC_GROUP, void (*)(EC_GROUP*)> group( + EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1), EC_GROUP_free); + if (!group) { + return nullptr; + } + + // Verify that |key_len| matches the group order. + if (key_len_bytes != BN_num_bytes(EC_GROUP_get0_order(group.get()))) { + return nullptr; + } + + // Read the public key coordinates. Note that the byte order in the file is + // little-endian, so we convert to big-endian here. + std::unique_ptr<uint8_t[]> bytes(new uint8_t[key_len_bytes]); + std::unique_ptr<BIGNUM, BNDeleter> point[2]; + for (int i = 0; i < 2; ++i) { + unsigned int byte = 0; + if (fscanf(file, " , { %u", &byte) != 1) { + return nullptr; + } + bytes[key_len_bytes - 1] = byte; + + for (size_t i = 1; i < key_len_bytes; ++i) { + if (fscanf(file, " , %u", &byte) != 1) { + return nullptr; + } + bytes[key_len_bytes - i - 1] = byte; + } + + point[i].reset(BN_bin2bn(bytes.get(), key_len_bytes, nullptr)); + if (!point[i]) { + return nullptr; + } + + if (fscanf(file, " }") != 0) { + return nullptr; + } + } + + if (fscanf(file, " } ") != 0) { + return nullptr; + } + + // Create and initialize the key. + std::unique_ptr<EC_KEY, ECKEYDeleter> key(EC_KEY_new()); + if (!key || !EC_KEY_set_group(key.get(), group.get()) || + !EC_KEY_set_public_key_affine_coordinates(key.get(), point[0].get(), + point[1].get())) { + return nullptr; + } + + return key; +} + // Reads a file containing one or more public keys as produced by // DumpPublicKey: this is an RSAPublicKey struct as it would appear // as a C source literal, eg: @@ -323,140 +472,85 @@ int verify_file(unsigned char* addr, size_t length, // 4: 2048-bit RSA key with e=65537 and SHA-256 hash // 5: 256-bit EC key using the NIST P-256 curve parameters and SHA-256 hash // -// Returns NULL if the file failed to parse, or if it contain zero keys. -Certificate* -load_keys(const char* filename, int* numKeys) { - Certificate* out = NULL; - *numKeys = 0; - - FILE* f = fopen(filename, "r"); - if (f == NULL) { +// Returns true on success, and appends the found keys (at least one) to certs. +// Otherwise returns false if the file failed to parse, or if it contains zero +// keys. The contents in certs would be unspecified on failure. +bool load_keys(const char* filename, std::vector<Certificate>& certs) { + std::unique_ptr<FILE, decltype(&fclose)> f(fopen(filename, "r"), fclose); + if (!f) { LOGE("opening %s: %s\n", filename, strerror(errno)); - goto exit; - } - - { - int i; - bool done = false; - while (!done) { - ++*numKeys; - out = (Certificate*)realloc(out, *numKeys * sizeof(Certificate)); - Certificate* cert = out + (*numKeys - 1); - memset(cert, '\0', sizeof(Certificate)); - - char start_char; - if (fscanf(f, " %c", &start_char) != 1) goto exit; - if (start_char == '{') { - // a version 1 key has no version specifier. - cert->key_type = Certificate::RSA; - cert->rsa = (RSAPublicKey*)malloc(sizeof(RSAPublicKey)); - cert->rsa->exponent = 3; - cert->hash_len = SHA_DIGEST_SIZE; - } else if (start_char == 'v') { - int version; - if (fscanf(f, "%d {", &version) != 1) goto exit; - switch (version) { - case 2: - cert->key_type = Certificate::RSA; - cert->rsa = (RSAPublicKey*)malloc(sizeof(RSAPublicKey)); - cert->rsa->exponent = 65537; - cert->hash_len = SHA_DIGEST_SIZE; - break; - case 3: - cert->key_type = Certificate::RSA; - cert->rsa = (RSAPublicKey*)malloc(sizeof(RSAPublicKey)); - cert->rsa->exponent = 3; - cert->hash_len = SHA256_DIGEST_SIZE; - break; - case 4: - cert->key_type = Certificate::RSA; - cert->rsa = (RSAPublicKey*)malloc(sizeof(RSAPublicKey)); - cert->rsa->exponent = 65537; - cert->hash_len = SHA256_DIGEST_SIZE; - break; - case 5: - cert->key_type = Certificate::EC; - cert->ec = (ECPublicKey*)calloc(1, sizeof(ECPublicKey)); - cert->hash_len = SHA256_DIGEST_SIZE; - break; - default: - goto exit; - } - } + return false; + } - if (cert->key_type == Certificate::RSA) { - RSAPublicKey* key = cert->rsa; - if (fscanf(f, " %i , 0x%x , { %u", - &(key->len), &(key->n0inv), &(key->n[0])) != 3) { - goto exit; - } - if (key->len != RSANUMWORDS) { - LOGE("key length (%d) does not match expected size\n", key->len); - goto exit; - } - for (i = 1; i < key->len; ++i) { - if (fscanf(f, " , %u", &(key->n[i])) != 1) goto exit; - } - if (fscanf(f, " } , { %u", &(key->rr[0])) != 1) goto exit; - for (i = 1; i < key->len; ++i) { - if (fscanf(f, " , %u", &(key->rr[i])) != 1) goto exit; - } - fscanf(f, " } } "); - - LOGI("read key e=%d hash=%d\n", key->exponent, cert->hash_len); - } else if (cert->key_type == Certificate::EC) { - ECPublicKey* key = cert->ec; - int key_len; - unsigned int byte; - uint8_t x_bytes[P256_NBYTES]; - uint8_t y_bytes[P256_NBYTES]; - if (fscanf(f, " %i , { %u", &key_len, &byte) != 2) goto exit; - if (key_len != P256_NBYTES) { - LOGE("Key length (%d) does not match expected size %d\n", key_len, P256_NBYTES); - goto exit; - } - x_bytes[P256_NBYTES - 1] = byte; - for (i = P256_NBYTES - 2; i >= 0; --i) { - if (fscanf(f, " , %u", &byte) != 1) goto exit; - x_bytes[i] = byte; - } - if (fscanf(f, " } , { %u", &byte) != 1) goto exit; - y_bytes[P256_NBYTES - 1] = byte; - for (i = P256_NBYTES - 2; i >= 0; --i) { - if (fscanf(f, " , %u", &byte) != 1) goto exit; - y_bytes[i] = byte; - } - fscanf(f, " } } "); - p256_from_bin(x_bytes, &key->x); - p256_from_bin(y_bytes, &key->y); - } else { - LOGE("Unknown key type %d\n", cert->key_type); - goto exit; + while (true) { + certs.emplace_back(0, Certificate::KEY_TYPE_RSA, nullptr, nullptr); + Certificate& cert = certs.back(); + uint32_t exponent = 0; + + char start_char; + if (fscanf(f.get(), " %c", &start_char) != 1) return false; + if (start_char == '{') { + // a version 1 key has no version specifier. + cert.key_type = Certificate::KEY_TYPE_RSA; + exponent = 3; + cert.hash_len = SHA_DIGEST_LENGTH; + } else if (start_char == 'v') { + int version; + if (fscanf(f.get(), "%d {", &version) != 1) return false; + switch (version) { + case 2: + cert.key_type = Certificate::KEY_TYPE_RSA; + exponent = 65537; + cert.hash_len = SHA_DIGEST_LENGTH; + break; + case 3: + cert.key_type = Certificate::KEY_TYPE_RSA; + exponent = 3; + cert.hash_len = SHA256_DIGEST_LENGTH; + break; + case 4: + cert.key_type = Certificate::KEY_TYPE_RSA; + exponent = 65537; + cert.hash_len = SHA256_DIGEST_LENGTH; + break; + case 5: + cert.key_type = Certificate::KEY_TYPE_EC; + cert.hash_len = SHA256_DIGEST_LENGTH; + break; + default: + return false; } + } - // if the line ends in a comma, this file has more keys. - switch (fgetc(f)) { - case ',': - // more keys to come. - break; - - case EOF: - done = true; - break; + if (cert.key_type == Certificate::KEY_TYPE_RSA) { + cert.rsa = parse_rsa_key(f.get(), exponent); + if (!cert.rsa) { + return false; + } - default: - LOGE("unexpected character between keys\n"); - goto exit; + LOGI("read key e=%d hash=%d\n", exponent, cert.hash_len); + } else if (cert.key_type == Certificate::KEY_TYPE_EC) { + cert.ec = parse_ec_key(f.get()); + if (!cert.ec) { + return false; } + } else { + LOGE("Unknown key type %d\n", cert.key_type); + return false; } - } - fclose(f); - return out; + // if the line ends in a comma, this file has more keys. + int ch = fgetc(f.get()); + if (ch == ',') { + // more keys to come. + continue; + } else if (ch == EOF) { + break; + } else { + LOGE("unexpected character between keys\n"); + return false; + } + } -exit: - if (f) fclose(f); - free(out); - *numKeys = 0; - return NULL; + return true; } diff --git a/verifier.h b/verifier.h index 15f8d98e4..58083fe14 100644 --- a/verifier.h +++ b/verifier.h @@ -17,25 +17,46 @@ #ifndef _RECOVERY_VERIFIER_H #define _RECOVERY_VERIFIER_H -#include "mincrypt/p256.h" -#include "mincrypt/rsa.h" +#include <memory> +#include <vector> -typedef struct { - p256_int x; - p256_int y; -} ECPublicKey; +#include <openssl/ec_key.h> +#include <openssl/rsa.h> +#include <openssl/sha.h> -typedef struct { +struct RSADeleter { + void operator()(RSA* rsa) { + RSA_free(rsa); + } +}; + +struct ECKEYDeleter { + void operator()(EC_KEY* ec_key) { + EC_KEY_free(ec_key); + } +}; + +struct Certificate { typedef enum { - RSA, - EC, + KEY_TYPE_RSA, + KEY_TYPE_EC, } KeyType; - int hash_len; // SHA_DIGEST_SIZE (SHA-1) or SHA256_DIGEST_SIZE (SHA-256) + Certificate(int hash_len_, + KeyType key_type_, + std::unique_ptr<RSA, RSADeleter>&& rsa_, + std::unique_ptr<EC_KEY, ECKEYDeleter>&& ec_) + : hash_len(hash_len_), + key_type(key_type_), + rsa(std::move(rsa_)), + ec(std::move(ec_)) {} + + // SHA_DIGEST_LENGTH (SHA-1) or SHA256_DIGEST_LENGTH (SHA-256) + int hash_len; KeyType key_type; - RSAPublicKey* rsa; - ECPublicKey* ec; -} Certificate; + std::unique_ptr<RSA, RSADeleter> rsa; + std::unique_ptr<EC_KEY, ECKEYDeleter> ec; +}; /* addr and length define a an update package file that has been * loaded (or mmap'ed, or whatever) into memory. Verify that the file @@ -43,9 +64,9 @@ typedef struct { * one of the constants below. */ int verify_file(unsigned char* addr, size_t length, - const Certificate *pKeys, unsigned int numKeys); + const std::vector<Certificate>& keys); -Certificate* load_keys(const char* filename, int* numKeys); +bool load_keys(const char* filename, std::vector<Certificate>& certs); #define VERIFY_SUCCESS 0 #define VERIFY_FAILURE 1 diff --git a/verifier_test.cpp b/verifier_test.cpp deleted file mode 100644 index 82546edce..000000000 --- a/verifier_test.cpp +++ /dev/null @@ -1,256 +0,0 @@ -/* - * Copyright (C) 2009 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <errno.h> -#include <fcntl.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> - -#include "common.h" -#include "verifier.h" -#include "ui.h" -#include "mincrypt/sha.h" -#include "mincrypt/sha256.h" -#include "minzip/SysUtil.h" - -// This is build/target/product/security/testkey.x509.pem after being -// dumped out by dumpkey.jar. -RSAPublicKey test_key = - { 64, 0xc926ad21, - { 0x6afee91fu, 0x7fa31d5bu, 0x38a0b217u, 0x99df9baeu, - 0xfe72991du, 0x727d3c04u, 0x20943f99u, 0xd08e7826u, - 0x69e7c8a2u, 0xdeeccc8eu, 0x6b9af76fu, 0x553311c4u, - 0x07b9e247u, 0x54c8bbcau, 0x6a540d81u, 0x48dbf567u, - 0x98c92877u, 0x134fbfdeu, 0x01b32564u, 0x24581948u, - 0x6cddc3b8u, 0x0cd444dau, 0xfe0381ccu, 0xf15818dfu, - 0xc06e6d42u, 0x2e2f6412u, 0x093a6737u, 0x94d83b31u, - 0xa466c87au, 0xb3f284a0u, 0xa694ec2cu, 0x053359e6u, - 0x9717ee6au, 0x0732e080u, 0x220d5008u, 0xdc4af350u, - 0x93d0a7c3u, 0xe330c9eau, 0xcac3da1eu, 0x8ebecf8fu, - 0xc2be387fu, 0x38a14e89u, 0x211586f0u, 0x18b846f5u, - 0x43be4c72u, 0xb578c204u, 0x1bbfb230u, 0xf1e267a8u, - 0xa2d3e656u, 0x64b8e4feu, 0xe7e83d4bu, 0x3e77a943u, - 0x3559ffd9u, 0x0ebb0f99u, 0x0aa76ce6u, 0xd3786ea7u, - 0xbca8cd6bu, 0x068ca8e8u, 0xeb1de2ffu, 0x3e3ecd6cu, - 0xe0d9d825u, 0xb1edc762u, 0xdec60b24u, 0xd6931904u}, - { 0xccdcb989u, 0xe19281f9u, 0xa6e80accu, 0xb7f40560u, - 0x0efb0bccu, 0x7f12b0bbu, 0x1e90531au, 0x136d95d0u, - 0x9e660665u, 0x7d54918fu, 0xe3b93ea2u, 0x2f415d10u, - 0x3d2df6e6u, 0x7a627ecfu, 0xa6f22d70u, 0xb995907au, - 0x09de16b2u, 0xfeb8bd61u, 0xf24ec294u, 0x716a427fu, - 0x2e12046fu, 0xeaf3d56au, 0xd9b873adu, 0x0ced340bu, - 0xbc9cec09u, 0x73c65903u, 0xee39ce9bu, 0x3eede25au, - 0x397633b7u, 0x2583c165u, 0x8514f97du, 0xe9166510u, - 0x0b6fae99u, 0xa47139fdu, 0xdb8352f0u, 0xb2ad7f2cu, - 0xa11552e2u, 0xd4d490a7u, 0xe11e8568u, 0xe9e484dau, - 0xd3ef8449u, 0xa47055dau, 0x4edd9557u, 0x03a78ba1u, - 0x770e130du, 0x16762facu, 0x0cbdfcc4u, 0xf3070540u, - 0x008b6515u, 0x60e7e1b7u, 0xa72cf7f9u, 0xaff86e39u, - 0x4296faadu, 0xfc90430eu, 0x6cc8f377u, 0xb398fd43u, - 0x423c5997u, 0x991d59c4u, 0x6464bf73u, 0x96431575u, - 0x15e3d207u, 0x30532a7au, 0x8c4be618u, 0x460a4d76u }, - 3 - }; - -RSAPublicKey test_f4_key = - { 64, 0xc9bd1f21, - { 0x1178db1fu, 0xbf5d0e55u, 0x3393a165u, 0x0ef4c287u, - 0xbc472a4au, 0x383fc5a1u, 0x4a13b7d2u, 0xb1ff2ac3u, - 0xaf66b4d9u, 0x9280acefu, 0xa2165bdbu, 0x6a4d6e5cu, - 0x08ea676bu, 0xb7ac70c7u, 0xcd158139u, 0xa635ccfeu, - 0xa46ab8a8u, 0x445a3e8bu, 0xdc81d9bbu, 0x91ce1a20u, - 0x68021cdeu, 0x4516eda9u, 0x8d43c30cu, 0xed1eff14u, - 0xca387e4cu, 0x58adc233u, 0x4657ab27u, 0xa95b521eu, - 0xdfc0e30cu, 0x394d64a1u, 0xc6b321a1u, 0x2ca22cb8u, - 0xb1892d5cu, 0x5d605f3eu, 0x6025483cu, 0x9afd5181u, - 0x6e1a7105u, 0x03010593u, 0x70acd304u, 0xab957cbfu, - 0x8844abbbu, 0x53846837u, 0x24e98a43u, 0x2ba060c1u, - 0x8b88b88eu, 0x44eea405u, 0xb259fc41u, 0x0907ad9cu, - 0x13003adau, 0xcf79634eu, 0x7d314ec9u, 0xfbbe4c2bu, - 0xd84d0823u, 0xfd30fd88u, 0x68d8a909u, 0xfb4572d9u, - 0xa21301c2u, 0xd00a4785u, 0x6862b50cu, 0xcfe49796u, - 0xdaacbd83u, 0xfb620906u, 0xdf71e0ccu, 0xbbc5b030u }, - { 0x69a82189u, 0x1a8b22f4u, 0xcf49207bu, 0x68cc056au, - 0xb206b7d2u, 0x1d449bbdu, 0xe9d342f2u, 0x29daea58u, - 0xb19d011au, 0xc62f15e4u, 0x9452697au, 0xb62bb87eu, - 0x60f95cc2u, 0x279ebb2du, 0x17c1efd8u, 0xec47558bu, - 0xc81334d1u, 0x88fe7601u, 0x79992eb1u, 0xb4555615u, - 0x2022ac8cu, 0xc79a4b8cu, 0xb288b034u, 0xd6b942f0u, - 0x0caa32fbu, 0xa065ba51u, 0x4de9f154u, 0x29f64f6cu, - 0x7910af5eu, 0x3ed4636au, 0xe4c81911u, 0x9183f37du, - 0x5811e1c4u, 0x29c7a58cu, 0x9715d4d3u, 0xc7e2dce3u, - 0x140972ebu, 0xf4c8a69eu, 0xa104d424u, 0x5dabbdfbu, - 0x41cb4c6bu, 0xd7f44717u, 0x61785ff7u, 0x5e0bc273u, - 0x36426c70u, 0x2aa6f08eu, 0x083badbfu, 0x3cab941bu, - 0x8871da23u, 0x1ab3dbaeu, 0x7115a21du, 0xf5aa0965u, - 0xf766f562u, 0x7f110225u, 0x86d96a04u, 0xc50a120eu, - 0x3a751ca3u, 0xc21aa186u, 0xba7359d0u, 0x3ff2b257u, - 0xd116e8bbu, 0xfc1318c0u, 0x070e5b1du, 0x83b759a6u }, - 65537 - }; - -ECPublicKey test_ec_key = - { - { - {0xd656fa24u, 0x931416cau, 0x1c0278c6u, 0x174ebe4cu, - 0x6018236au, 0x45ba1656u, 0xe8c05d84u, 0x670ed500u} - }, - { - {0x0d179adeu, 0x4c16827du, 0x9f8cb992u, 0x8f69ff8au, - 0x481b1020u, 0x798d91afu, 0x184db8e9u, 0xb5848dd9u} - } - }; - -RecoveryUI* ui = NULL; - -// verifier expects to find a UI object; we provide one that does -// nothing but print. -class FakeUI : public RecoveryUI { - void Init() { } - void SetStage(int, int) { } - void SetLocale(const char*) { } - void SetBackground(Icon icon) { } - - void SetProgressType(ProgressType determinate) { } - void ShowProgress(float portion, float seconds) { } - void SetProgress(float fraction) { } - - void ShowText(bool visible) { } - bool IsTextVisible() { return false; } - bool WasTextEverVisible() { return false; } - void Print(const char* fmt, ...) { - va_list ap; - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); - } - void ShowFile(const char*) { } - - void StartMenu(const char* const * headers, const char* const * items, - int initial_selection) { } - int SelectMenu(int sel) { return 0; } - void EndMenu() { } -}; - -void -ui_print(const char* format, ...) { - va_list ap; - va_start(ap, format); - vfprintf(stdout, format, ap); - va_end(ap); -} - -static Certificate* add_certificate(Certificate** certsp, int* num_keys, - Certificate::KeyType key_type) { - int i = *num_keys; - *num_keys = *num_keys + 1; - *certsp = (Certificate*) realloc(*certsp, *num_keys * sizeof(Certificate)); - Certificate* certs = *certsp; - certs[i].rsa = NULL; - certs[i].ec = NULL; - certs[i].key_type = key_type; - certs[i].hash_len = SHA_DIGEST_SIZE; - return &certs[i]; -} - -int main(int argc, char **argv) { - if (argc < 2) { - fprintf(stderr, "Usage: %s [-sha256] [-ec | -f4 | -file <keys>] <package>\n", argv[0]); - return 2; - } - Certificate* certs = NULL; - int num_keys = 0; - - int argn = 1; - while (argn < argc) { - if (strcmp(argv[argn], "-sha256") == 0) { - if (num_keys == 0) { - fprintf(stderr, "May only specify -sha256 after key type\n"); - return 2; - } - ++argn; - Certificate* cert = &certs[num_keys - 1]; - cert->hash_len = SHA256_DIGEST_SIZE; - } else if (strcmp(argv[argn], "-ec") == 0) { - ++argn; - Certificate* cert = add_certificate(&certs, &num_keys, Certificate::EC); - cert->ec = &test_ec_key; - } else if (strcmp(argv[argn], "-e3") == 0) { - ++argn; - Certificate* cert = add_certificate(&certs, &num_keys, Certificate::RSA); - cert->rsa = &test_key; - } else if (strcmp(argv[argn], "-f4") == 0) { - ++argn; - Certificate* cert = add_certificate(&certs, &num_keys, Certificate::RSA); - cert->rsa = &test_f4_key; - } else if (strcmp(argv[argn], "-file") == 0) { - if (certs != NULL) { - fprintf(stderr, "Cannot specify -file with other certs specified\n"); - return 2; - } - ++argn; - certs = load_keys(argv[argn], &num_keys); - ++argn; - } else if (argv[argn][0] == '-') { - fprintf(stderr, "Unknown argument %s\n", argv[argn]); - return 2; - } else { - break; - } - } - - if (argn == argc) { - fprintf(stderr, "Must specify package to verify\n"); - return 2; - } - - if (num_keys == 0) { - certs = (Certificate*) calloc(1, sizeof(Certificate)); - if (certs == NULL) { - fprintf(stderr, "Failure allocating memory for default certificate\n"); - return 1; - } - certs->key_type = Certificate::RSA; - certs->rsa = &test_key; - certs->ec = NULL; - certs->hash_len = SHA_DIGEST_SIZE; - num_keys = 1; - } - - ui = new FakeUI(); - - MemMapping map; - if (sysMapFile(argv[argn], &map) != 0) { - fprintf(stderr, "failed to mmap %s: %s\n", argv[argn], strerror(errno)); - return 4; - } - - int result = verify_file(map.addr, map.length, certs, num_keys); - if (result == VERIFY_SUCCESS) { - printf("VERIFIED\n"); - return 0; - } else if (result == VERIFY_FAILURE) { - printf("NOT VERIFIED\n"); - return 1; - } else { - printf("bad return value\n"); - return 3; - } -} diff --git a/verifier_test.sh b/verifier_test.sh deleted file mode 100755 index 4761cef4a..000000000 --- a/verifier_test.sh +++ /dev/null @@ -1,121 +0,0 @@ -#!/bin/bash -# -# A test suite for recovery's package signature verifier. Run in a -# client where you have done envsetup, lunch, etc. -# -# TODO: find some way to get this run regularly along with the rest of -# the tests. - -EMULATOR_PORT=5580 -DATA_DIR=$ANDROID_BUILD_TOP/bootable/recovery/testdata - -WORK_DIR=/data/local/tmp - -# set to 0 to use a device instead -USE_EMULATOR=0 - -# ------------------------ - -if [ "$USE_EMULATOR" == 1 ]; then - emulator -wipe-data -noaudio -no-window -port $EMULATOR_PORT & - pid_emulator=$! - ADB="adb -s emulator-$EMULATOR_PORT " -else - ADB="adb -d " -fi - -echo "waiting to connect to device" -$ADB wait-for-device - -# run a command on the device; exit with the exit status of the device -# command. -run_command() { - $ADB shell "$@" \; echo \$? | awk '{if (b) {print a}; a=$0; b=1} END {exit a}' -} - -testname() { - echo - echo "::: testing $1 :::" - testname="$1" -} - -fail() { - echo - echo FAIL: $testname - echo - [ "$open_pid" == "" ] || kill $open_pid - [ "$pid_emulator" == "" ] || kill $pid_emulator - exit 1 -} - - -cleanup() { - # not necessary if we're about to kill the emulator, but nice for - # running on real devices or already-running emulators. - run_command rm $WORK_DIR/verifier_test - run_command rm $WORK_DIR/package.zip - - [ "$pid_emulator" == "" ] || kill $pid_emulator -} - -$ADB push $ANDROID_PRODUCT_OUT/system/bin/verifier_test \ - $WORK_DIR/verifier_test - -expect_succeed() { - testname "$1 (should succeed)" - $ADB push $DATA_DIR/$1 $WORK_DIR/package.zip - shift - run_command $WORK_DIR/verifier_test "$@" $WORK_DIR/package.zip || fail -} - -expect_fail() { - testname "$1 (should fail)" - $ADB push $DATA_DIR/$1 $WORK_DIR/package.zip - shift - run_command $WORK_DIR/verifier_test "$@" $WORK_DIR/package.zip && fail -} - -# not signed at all -expect_fail unsigned.zip -# signed in the pre-donut way -expect_fail jarsigned.zip - -# success cases -expect_succeed otasigned.zip -e3 -expect_succeed otasigned_f4.zip -f4 -expect_succeed otasigned_sha256.zip -e3 -sha256 -expect_succeed otasigned_f4_sha256.zip -f4 -sha256 -expect_succeed otasigned_ecdsa_sha256.zip -ec -sha256 - -# success with multiple keys -expect_succeed otasigned.zip -f4 -e3 -expect_succeed otasigned_f4.zip -ec -f4 -expect_succeed otasigned_sha256.zip -ec -e3 -e3 -sha256 -expect_succeed otasigned_f4_sha256.zip -ec -sha256 -e3 -f4 -sha256 -expect_succeed otasigned_ecdsa_sha256.zip -f4 -sha256 -e3 -ec -sha256 - -# verified against different key -expect_fail otasigned.zip -f4 -expect_fail otasigned_f4.zip -e3 -expect_fail otasigned_ecdsa_sha256.zip -e3 -sha256 - -# verified against right key but wrong hash algorithm -expect_fail otasigned.zip -e3 -sha256 -expect_fail otasigned_f4.zip -f4 -sha256 -expect_fail otasigned_sha256.zip -expect_fail otasigned_f4_sha256.zip -f4 -expect_fail otasigned_ecdsa_sha256.zip - -# various other cases -expect_fail random.zip -expect_fail fake-eocd.zip -expect_fail alter-metadata.zip -expect_fail alter-footer.zip - -# --------------- cleanup ---------------------- - -cleanup - -echo -echo PASS -echo diff --git a/wear_touch.cpp b/wear_touch.cpp new file mode 100644 index 000000000..f22d40b88 --- /dev/null +++ b/wear_touch.cpp @@ -0,0 +1,177 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "common.h" +#include "wear_touch.h" + +#include <dirent.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> + +#include <linux/input.h> + +#define DEVICE_PATH "/dev/input" + +WearSwipeDetector::WearSwipeDetector(int low, int high, OnSwipeCallback callback, void* cookie): + mLowThreshold(low), + mHighThreshold(high), + mCallback(callback), + mCookie(cookie), + mCurrentSlot(-1) { + pthread_create(&mThread, NULL, touch_thread, this); +} + +WearSwipeDetector::~WearSwipeDetector() { +} + +void WearSwipeDetector::detect(int dx, int dy) { + enum SwipeDirection direction; + + if (abs(dy) < mLowThreshold && abs(dx) > mHighThreshold) { + direction = dx < 0 ? LEFT : RIGHT; + } else if (abs(dx) < mLowThreshold && abs(dy) > mHighThreshold) { + direction = dy < 0 ? UP : DOWN; + } else { + LOGD("Ignore %d %d\n", dx, dy); + return; + } + + LOGD("Swipe direction=%d\n", direction); + mCallback(mCookie, direction); +} + +void WearSwipeDetector::process(struct input_event *event) { + if (mCurrentSlot < 0) { + mCallback(mCookie, UP); + mCurrentSlot = 0; + } + + if (event->type == EV_ABS) { + if (event->code == ABS_MT_SLOT) + mCurrentSlot = event->value; + + // Ignore other fingers + if (mCurrentSlot > 0) { + return; + } + + switch (event->code) { + case ABS_MT_POSITION_X: + mX = event->value; + mFingerDown = true; + break; + + case ABS_MT_POSITION_Y: + mY = event->value; + mFingerDown = true; + break; + + case ABS_MT_TRACKING_ID: + if (event->value < 0) + mFingerDown = false; + break; + } + } else if (event->type == EV_SYN) { + if (event->code == SYN_REPORT) { + if (mFingerDown && !mSwiping) { + mStartX = mX; + mStartY = mY; + mSwiping = true; + } else if (!mFingerDown && mSwiping) { + mSwiping = false; + detect(mX - mStartX, mY - mStartY); + } + } + } +} + +void WearSwipeDetector::run() { + int fd = findDevice(DEVICE_PATH); + if (fd < 0) { + LOGE("no input devices found\n"); + return; + } + + struct input_event event; + while (read(fd, &event, sizeof(event)) == sizeof(event)) { + process(&event); + } + + close(fd); +} + +void* WearSwipeDetector::touch_thread(void* cookie) { + ((WearSwipeDetector*)cookie)->run(); + return NULL; +} + +#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8))) + +int WearSwipeDetector::openDevice(const char *device) { + int fd = open(device, O_RDONLY); + if (fd < 0) { + LOGE("could not open %s, %s\n", device, strerror(errno)); + return false; + } + + char name[80]; + name[sizeof(name) - 1] = '\0'; + if (ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) { + LOGE("could not get device name for %s, %s\n", device, strerror(errno)); + name[0] = '\0'; + } + + uint8_t bits[512]; + memset(bits, 0, sizeof(bits)); + int ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(bits)), bits); + if (ret > 0) { + if (test_bit(ABS_MT_POSITION_X, bits) && test_bit(ABS_MT_POSITION_Y, bits)) { + LOGD("Found %s %s\n", device, name); + return fd; + } + } + + close(fd); + return -1; +} + +int WearSwipeDetector::findDevice(const char* path) { + DIR* dir = opendir(path); + if (dir == NULL) { + LOGE("Could not open directory %s", path); + return false; + } + + struct dirent* entry; + int ret = -1; + while (ret < 0 && (entry = readdir(dir)) != NULL) { + if (entry->d_name[0] == '.') continue; + + char device[PATH_MAX]; + device[PATH_MAX-1] = '\0'; + snprintf(device, PATH_MAX-1, "%s/%s", path, entry->d_name); + + ret = openDevice(device); + } + + closedir(dir); + return ret; +} + diff --git a/wear_touch.h b/wear_touch.h new file mode 100644 index 000000000..9a1d3150c --- /dev/null +++ b/wear_touch.h @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2016 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __WEAR_TOUCH_H +#define __WEAR_TOUCH_H + +#include <pthread.h> + +class WearSwipeDetector { + +public: + enum SwipeDirection { UP, DOWN, RIGHT, LEFT }; + typedef void (*OnSwipeCallback)(void* cookie, enum SwipeDirection direction); + + WearSwipeDetector(int low, int high, OnSwipeCallback cb, void* cookie); + ~WearSwipeDetector(); + +private: + void run(); + void process(struct input_event *event); + void detect(int dx, int dy); + + pthread_t mThread; + static void* touch_thread(void* cookie); + + int findDevice(const char* path); + int openDevice(const char* device); + + int mLowThreshold; + int mHighThreshold; + + OnSwipeCallback mCallback; + void *mCookie; + + int mX; + int mY; + int mStartX; + int mStartY; + + int mCurrentSlot; + bool mFingerDown; + bool mSwiping; +}; + +#endif // __WEAR_TOUCH_H diff --git a/wear_ui.cpp b/wear_ui.cpp index ebe0dfe37..b437fd0ae 100644 --- a/wear_ui.cpp +++ b/wear_ui.cpp @@ -16,9 +16,7 @@ #include <errno.h> #include <fcntl.h> -#include <pthread.h> #include <stdarg.h> -#include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/stat.h> @@ -31,14 +29,10 @@ #include "common.h" #include "device.h" -#include "minui/minui.h" #include "wear_ui.h" -#include "ui.h" #include "cutils/properties.h" -#include "base/strings.h" - -static int char_width; -static int char_height; +#include "android-base/strings.h" +#include "android-base/stringprintf.h" // There's only (at most) one of these objects, and global callbacks // (for pthread_create, and the input event system) need to find it, @@ -61,11 +55,10 @@ WearRecoveryUI::WearRecoveryUI() : menu_unusable_rows(0), intro_frames(22), loop_frames(60), + animation_fps(30), currentIcon(NONE), intro_done(false), current_frame(0), - animation_fps(30), - rtl_locale(false), progressBarType(EMPTY), progressScopeStart(0), progressScopeSize(0), @@ -84,7 +77,6 @@ WearRecoveryUI::WearRecoveryUI() : for (size_t i = 0; i < 5; i++) backgroundIcon[i] = NULL; - pthread_mutex_init(&updateMutex, NULL); self = this; } @@ -148,41 +140,6 @@ void WearRecoveryUI::draw_progress_locked() } } -void WearRecoveryUI::SetColor(UIElement e) { - switch (e) { - case HEADER: - gr_color(247, 0, 6, 255); - break; - case MENU: - case MENU_SEL_BG: - gr_color(0, 106, 157, 255); - break; - case MENU_SEL_FG: - gr_color(255, 255, 255, 255); - break; - case LOG: - gr_color(249, 194, 0, 255); - break; - case TEXT_FILL: - gr_color(0, 0, 0, 160); - break; - default: - gr_color(255, 255, 255, 255); - break; - } -} - -void WearRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) { - gr_text(x, *y, line, bold); - *y += char_height + 4; -} - -void WearRecoveryUI::DrawTextLines(int x, int* y, const char* const* lines) { - for (size_t i = 0; lines != nullptr && lines[i] != nullptr; ++i) { - DrawTextLine(x, y, lines[i], false); - } -} - static const char* HEADERS[] = { "Swipe up/down to move.", "Swipe left/right to select.", @@ -221,7 +178,7 @@ void WearRecoveryUI::draw_screen_locked() if (menu_items > menu_end - menu_start) { sprintf(cur_selection_str, "Current item: %d/%d", menu_sel + 1, menu_items); gr_text(x+4, y, cur_selection_str, 1); - y += char_height+4; + y += char_height_+4; } // Menu begins here @@ -232,7 +189,7 @@ void WearRecoveryUI::draw_screen_locked() if (i == menu_sel) { // draw the highlight bar SetColor(MENU_SEL_BG); - gr_fill(x, y-2, gr_fb_width()-x, y+char_height+2); + gr_fill(x, y-2, gr_fb_width()-x, y+char_height_+2); // white text of selected item SetColor(MENU_SEL_FG); if (menu[i][0]) gr_text(x+4, y, menu[i], 1); @@ -240,7 +197,7 @@ void WearRecoveryUI::draw_screen_locked() } else { if (menu[i][0]) gr_text(x+4, y, menu[i], 0); } - y += char_height+4; + y += char_height_+4; } SetColor(MENU); y += 4; @@ -256,9 +213,9 @@ void WearRecoveryUI::draw_screen_locked() int ty; int row = (text_top+text_rows-1) % text_rows; size_t count = 0; - for (int ty = gr_fb_height() - char_height - outer_height; + for (int ty = gr_fb_height() - char_height_ - outer_height; ty > y+2 && count < text_rows; - ty -= char_height, ++count) { + ty -= char_height_, ++count) { gr_text(x+4, ty, text[row], 0); --row; if (row < 0) row = text_rows-1; @@ -324,26 +281,19 @@ void WearRecoveryUI::progress_loop() { } } -void WearRecoveryUI::LoadBitmap(const char* filename, GRSurface** surface) { - int result = res_create_display_surface(filename, surface); - if (result < 0) { - LOGE("missing bitmap %s\n(Code %d)\n", filename, result); - } -} - void WearRecoveryUI::Init() { gr_init(); - gr_font_size(&char_width, &char_height); + gr_font_size(&char_width_, &char_height_); text_col = text_row = 0; - text_rows = (gr_fb_height()) / char_height; - visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height; + text_rows = (gr_fb_height()) / char_height_; + visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height_; if (text_rows > kMaxRows) text_rows = kMaxRows; text_top = 1; - text_cols = (gr_fb_width() - (outer_width * 2)) / char_width; + text_cols = (gr_fb_width() - (outer_width * 2)) / char_width_; if (text_cols > kMaxCols - 1) text_cols = kMaxCols - 1; LoadBitmap("icon_installing", &backgroundIcon[INSTALLING_UPDATE]); @@ -369,29 +319,6 @@ void WearRecoveryUI::Init() RecoveryUI::Init(); } -void WearRecoveryUI::SetLocale(const char* locale) { - if (locale) { - char* lang = strdup(locale); - for (char* p = lang; *p; ++p) { - if (*p == '_') { - *p = '\0'; - break; - } - } - - // A bit cheesy: keep an explicit list of supported languages - // that are RTL. - if (strcmp(lang, "ar") == 0 || // Arabic - strcmp(lang, "fa") == 0 || // Persian (Farsi) - strcmp(lang, "he") == 0 || // Hebrew (new language code) - strcmp(lang, "iw") == 0 || // Hebrew (old language code) - strcmp(lang, "ur") == 0) { // Urdu - rtl_locale = true; - } - free(lang); - } -} - void WearRecoveryUI::SetBackground(Icon icon) { pthread_mutex_lock(&updateMutex); @@ -653,3 +580,35 @@ void WearRecoveryUI::ClearText() { } pthread_mutex_unlock(&updateMutex); } + +void WearRecoveryUI::PrintOnScreenOnly(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + PrintV(fmt, false, ap); + va_end(ap); +} + +void WearRecoveryUI::PrintV(const char* fmt, bool copy_to_stdout, va_list ap) { + std::string str; + android::base::StringAppendV(&str, fmt, ap); + + if (copy_to_stdout) { + fputs(str.c_str(), stdout); + } + + pthread_mutex_lock(&updateMutex); + if (text_rows > 0 && text_cols > 0) { + for (const char* ptr = str.c_str(); *ptr != '\0'; ++ptr) { + if (*ptr == '\n' || text_col >= text_cols) { + text[text_row][text_col] = '\0'; + text_col = 0; + text_row = (text_row + 1) % text_rows; + if (text_row == text_top) text_top = (text_top + 1) % text_rows; + } + if (*ptr != '\n') text[text_row][text_col++] = *ptr; + } + text[text_row][text_col] = '\0'; + update_screen_locked(); + } + pthread_mutex_unlock(&updateMutex); +} @@ -17,19 +17,13 @@ #ifndef RECOVERY_WEAR_UI_H #define RECOVERY_WEAR_UI_H -#include <pthread.h> -#include <stdio.h> +#include "screen_ui.h" -#include "ui.h" -#include "minui/minui.h" - -class WearRecoveryUI : public RecoveryUI { +class WearRecoveryUI : public ScreenRecoveryUI { public: WearRecoveryUI(); void Init(); - void SetLocale(const char* locale); - // overall recovery state ("background image") void SetBackground(Icon icon); @@ -47,6 +41,7 @@ class WearRecoveryUI : public RecoveryUI { // printing messages void Print(const char* fmt, ...); + void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3); void ShowFile(const char* filename); void ShowFile(FILE* fp); @@ -58,9 +53,6 @@ class WearRecoveryUI : public RecoveryUI { void Redraw(); - enum UIElement { HEADER, MENU, MENU_SEL_BG, MENU_SEL_FG, LOG, TEXT_FILL }; - virtual void SetColor(UIElement e); - protected: int progress_bar_height, progress_bar_width; @@ -79,7 +71,7 @@ class WearRecoveryUI : public RecoveryUI { int intro_frames; int loop_frames; - // animation's fps (default: 30) + // Number of frames per sec (default: 30) for both of intro and loop. int animation_fps; private: @@ -89,9 +81,6 @@ class WearRecoveryUI : public RecoveryUI { int current_frame; - bool rtl_locale; - - pthread_mutex_t updateMutex; GRSurface* backgroundIcon[5]; GRSurface* *introFrames; GRSurface* *loopFrames; @@ -128,11 +117,9 @@ class WearRecoveryUI : public RecoveryUI { void update_screen_locked(); static void* progress_thread(void* cookie); void progress_loop(); - void LoadBitmap(const char* filename, GRSurface** surface); void PutChar(char); void ClearText(); - void DrawTextLine(int x, int* y, const char* line, bool bold); - void DrawTextLines(int x, int* y, const char* const* lines); + void PrintV(const char*, bool, va_list); }; #endif // RECOVERY_WEAR_UI_H |
