diff options
| -rw-r--r-- | minzip/SysUtil.c | 67 | ||||
| -rw-r--r-- | recovery.cpp | 27 | ||||
| -rw-r--r-- | roots.cpp | 8 | ||||
| -rw-r--r-- | roots.h | 6 | ||||
| -rw-r--r-- | uncrypt/uncrypt.cpp | 272 | ||||
| -rw-r--r-- | uncrypt/uncrypt.rc | 10 | ||||
| -rw-r--r-- | wear_ui.cpp | 33 | ||||
| -rw-r--r-- | wear_ui.h | 2 |
8 files changed, 310 insertions, 115 deletions
diff --git a/minzip/SysUtil.c b/minzip/SysUtil.c index 09ec8768f..e7dd17b51 100644 --- a/minzip/SysUtil.c +++ b/minzip/SysUtil.c @@ -39,6 +39,11 @@ static bool sysMapFD(int fd, MemMapping* pMap) { 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, sb.st_size); + return false; + } pMap->ranges[0].addr = memPtr; pMap->ranges[0].length = sb.st_size; @@ -50,7 +55,7 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) char block_dev[PATH_MAX+1]; size_t size; unsigned int blksize; - unsigned int blocks; + size_t blocks; unsigned int range_count; unsigned int i; @@ -69,49 +74,80 @@ static int sysMapBlockFile(FILE* mapf, MemMapping* pMap) LOGE("failed to parse block map header\n"); return -1; } - - blocks = ((size-1) / blksize) + 1; + if (blksize != 0) { + blocks = ((size-1) / blksize) + 1; + } + if (size == 0 || blksize == 0 || blocks > SIZE_MAX / blksize || range_count == 0) { + LOGE("invalid data in block map file: size %zu, blksize %u, range_count %u\n", + size, blksize, range_count); + return -1; + } pMap->range_count = range_count; - pMap->ranges = malloc(range_count * sizeof(MappedRange)); - memset(pMap->ranges, 0, range_count * sizeof(MappedRange)); + pMap->ranges = calloc(range_count, sizeof(MappedRange)); + if (pMap->ranges == NULL) { + LOGE("calloc(%u, %zu) failed: %s\n", range_count, sizeof(MappedRange), strerror(errno)); + return -1; + } // Reserve enough contiguous address space for the whole file. unsigned char* reserve; reserve = mmap64(NULL, blocks * blksize, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0); if (reserve == MAP_FAILED) { LOGE("failed to reserve address space: %s\n", strerror(errno)); + free(pMap->ranges); return -1; } - pMap->ranges[range_count-1].addr = reserve; - pMap->ranges[range_count-1].length = blocks * blksize; - int fd = open(block_dev, O_RDONLY); if (fd < 0) { LOGE("failed to open block device %s: %s\n", block_dev, strerror(errno)); + munmap(reserve, blocks * blksize); + free(pMap->ranges); return -1; } unsigned char* next = reserve; + size_t remaining_size = blocks * blksize; + bool success = true; for (i = 0; i < range_count; ++i) { - int start, end; - if (fscanf(mapf, "%d %d\n", &start, &end) != 2) { + size_t start, end; + if (fscanf(mapf, "%zu %zu\n", &start, &end) != 2) { LOGE("failed to parse range %d in block map\n", i); - return -1; + success = false; + break; + } + size_t length = (end - start) * blksize; + if (end <= start || (end - start) > SIZE_MAX / blksize || length > remaining_size) { + LOGE("unexpected range in block map: %zu %zu\n", start, end); + success = false; + break; } - void* addr = mmap64(next, (end-start)*blksize, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize); + void* addr = mmap64(next, length, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)start)*blksize); if (addr == MAP_FAILED) { LOGE("failed to map block %d: %s\n", i, strerror(errno)); - return -1; + success = false; + break; } pMap->ranges[i].addr = addr; - pMap->ranges[i].length = (end-start)*blksize; + pMap->ranges[i].length = length; - next += pMap->ranges[i].length; + next += length; + remaining_size -= length; + } + if (success && remaining_size != 0) { + LOGE("ranges in block map are invalid: remaining_size = %zu\n", remaining_size); + success = false; + } + if (!success) { + close(fd); + munmap(reserve, blocks * blksize); + free(pMap->ranges); + return -1; } + close(fd); pMap->addr = reserve; pMap->length = size; @@ -134,6 +170,7 @@ int sysMapFile(const char* fn, MemMapping* pMap) if (sysMapBlockFile(mapf, pMap) != 0) { LOGE("Map of '%s' failed\n", fn); + fclose(mapf); return -1; } diff --git a/recovery.cpp b/recovery.cpp index 6781fa4b4..7620f1a00 100644 --- a/recovery.cpp +++ b/recovery.cpp @@ -81,7 +81,10 @@ 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"; @@ -522,6 +525,7 @@ 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); @@ -576,7 +580,28 @@ 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) { @@ -175,7 +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); @@ -241,7 +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); @@ -273,6 +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"); @@ -41,6 +41,12 @@ 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(); diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp index 705744eb6..e783b9e7a 100644 --- a/uncrypt/uncrypt.cpp +++ b/uncrypt/uncrypt.cpp @@ -39,6 +39,53 @@ // 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> @@ -49,6 +96,7 @@ #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> @@ -63,6 +111,7 @@ #include <android-base/strings.h> #include <cutils/android_reboot.h> #include <cutils/properties.h> +#include <cutils/sockets.h> #include <fs_mgr.h> #define LOG_TAG "uncrypt" @@ -73,12 +122,21 @@ #define WINDOW_SIZE 5 +// 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 COMMAND_FILE = "/cache/recovery/command"; -static const std::string STATUS_FILE = "/cache/recovery/uncrypt_status"; 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) { @@ -152,6 +210,11 @@ 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(const std::string& uncrypt_path_file, std::string* package_name) { CHECK(package_name != nullptr); @@ -167,7 +230,7 @@ static bool find_uncrypt_package(const std::string& uncrypt_path_file, std::stri } static int produce_block_map(const char* path, const char* map_file, const char* blk_dev, - bool encrypted, int status_fd) { + 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()); @@ -180,9 +243,9 @@ static int produce_block_map(const char* path, const char* map_file, const char* return -1; } - // 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; } @@ -234,8 +297,8 @@ static int produce_block_map(const char* path, const char* map_file, const char* // 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) { @@ -352,15 +415,12 @@ static int produce_block_map(const char* path, const char* map_file, const char* } static std::string get_misc_blk_device() { - struct fstab* fstab = read_fstab(); if (fstab == nullptr) { return ""; } - for (int i = 0; i < fstab->num_entries; ++i) { - fstab_rec* v = &fstab->recs[i]; - if (v->mount_point != nullptr && strcmp(v->mount_point, "/misc") == 0) { - return v->blk_device; - } + struct fstab_rec* rec = fs_mgr_get_entry_for_mount_point(fstab, "/misc"); + if (rec != nullptr) { + return rec->blk_device; } return ""; } @@ -406,17 +466,7 @@ static int write_bootloader_message(const bootloader_message* in) { return 0; } -static void reboot_to_recovery() { - ALOGI("rebooting to recovery"); - property_set("sys.powerctl", "reboot,recovery"); - while (true) { - pause(); - } - ALOGE("reboot didn't succeed?"); -} - -static 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 @@ -427,10 +477,6 @@ static 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); @@ -454,7 +500,7 @@ static 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; } } @@ -462,71 +508,66 @@ static int uncrypt(const char* input_path, const char* map_file, int status_fd) return 0; } -static int uncrypt_wrapper(const char* input_path, const char* map_file, - const std::string& status_file) { - // The pipe has been created by the system server. - unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR)); - if (!status_fd) { - ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno)); - return 1; - } - +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)) { - android::base::WriteStringToFd("-1\n", status_fd.get()); - return 1; + write_status_to_socket(-1, socket); + return false; } input_path = package.c_str(); } CHECK(map_file != nullptr); - int status = uncrypt(input_path, map_file, status_fd.get()); + int status = uncrypt(input_path, map_file, socket); if (status != 0) { - android::base::WriteStringToFd("-1\n", status_fd.get()); - return 1; + write_status_to_socket(-1, socket); + return false; } - android::base::WriteStringToFd("100\n", status_fd.get()); - return 0; + write_status_to_socket(100, socket); + return true; } -static int clear_bcb(const std::string& status_file) { - unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR)); - if (!status_fd) { - ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno)); - return 1; - } +static bool clear_bcb(const int socket) { bootloader_message boot = {}; if (write_bootloader_message(&boot) != 0) { - android::base::WriteStringToFd("-1\n", status_fd.get()); - return 1; + write_status_to_socket(-1, socket); + return false; } - android::base::WriteStringToFd("100\n", status_fd.get()); - return 0; + write_status_to_socket(100, socket); + return true; } -static int setup_bcb(const std::string& command_file, const std::string& status_file) { - unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR)); - if (!status_fd) { - ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno)); - return 1; +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; - if (!android::base::ReadFileToString(command_file, &content)) { - ALOGE("failed to read \"%s\": %s", command_file.c_str(), strerror(errno)); - android::base::WriteStringToFd("-1\n", status_fd.get()); - return 1; + 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 bootloader_message boot = {}; strlcpy(boot.command, "boot-recovery", sizeof(boot.command)); strlcpy(boot.recovery, "recovery\n", sizeof(boot.recovery)); strlcat(boot.recovery, content.c_str(), sizeof(boot.recovery)); if (write_bootloader_message(&boot) != 0) { ALOGE("failed to set bootloader message"); - android::base::WriteStringToFd("-1\n", status_fd.get()); - return 1; + write_status_to_socket(-1, socket); + return false; } - android::base::WriteStringToFd("100\n", status_fd.get()); - return 0; + // c10. send "100" status + write_status_to_socket(100, socket); + return true; } static int read_bcb() { @@ -543,32 +584,81 @@ static int read_bcb() { 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 --reboot Clear BCB data and reboot to recovery.\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); fprintf(stderr, "%s --read-bcb Read BCB data from misc partition.\n", exename); } int main(int argc, char** argv) { - if (argc == 2) { - if (strcmp(argv[1], "--reboot") == 0) { - reboot_to_recovery(); - } else if (strcmp(argv[1], "--clear-bcb") == 0) { - return clear_bcb(STATUS_FILE); - } else if (strcmp(argv[1], "--setup-bcb") == 0) { - return setup_bcb(COMMAND_FILE, STATUS_FILE); - } else if (strcmp(argv[1], "--read-bcb") == 0) { - return read_bcb(); - } - } else if (argc == 1 || argc == 3) { - const char* input_path = nullptr; - const char* map_file = CACHE_BLOCK_MAP.c_str(); - if (argc == 3) { - input_path = argv[1]; - map_file = argv[2]; - } - return uncrypt_wrapper(input_path, map_file, STATUS_FILE); + 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 ==2 && strcmp(argv[1], "--read-bcb") == 0) { + return read_bcb(); + } else if (argc == 1) { + action = UNCRYPT; + } else if (argc == 3) { + input_path = argv[1]; + map_file = argv[2]; + action = UNCRYPT; + } else { + usage(argv[0]); + return 2; + } + + if ((fstab = read_fstab()) == nullptr) { + 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); + + if (listen(service_socket.get(), 1) == -1) { + ALOGE("failed to listen on socket %d: %s", service_socket.get(), strerror(errno)); + return 1; + } + + 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)); } - usage(argv[0]); - return 2; + return success ? 0 : 1; } diff --git a/uncrypt/uncrypt.rc b/uncrypt/uncrypt.rc index b07c1dada..52f564eb6 100644 --- a/uncrypt/uncrypt.rc +++ b/uncrypt/uncrypt.rc @@ -1,19 +1,17 @@ service uncrypt /system/bin/uncrypt class main - disabled - oneshot - -service pre-recovery /system/bin/uncrypt --reboot - 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
\ No newline at end of file + oneshot diff --git a/wear_ui.cpp b/wear_ui.cpp index 50aeb3849..8a57cfffa 100644 --- a/wear_ui.cpp +++ b/wear_ui.cpp @@ -36,6 +36,7 @@ #include "ui.h" #include "cutils/properties.h" #include "android-base/strings.h" +#include "android-base/stringprintf.h" static int char_width; static int char_height; @@ -653,3 +654,35 @@ 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); +} @@ -47,6 +47,7 @@ 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); @@ -133,6 +134,7 @@ class WearRecoveryUI : public RecoveryUI { 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 |