diff options
Diffstat (limited to 'roots.cpp')
| -rw-r--r-- | roots.cpp | 127 |
1 files changed, 52 insertions, 75 deletions
@@ -14,6 +14,8 @@ * limitations under the License. */ +#include "roots.h" + #include <errno.h> #include <stdlib.h> #include <sys/mount.h> @@ -24,12 +26,12 @@ #include <ctype.h> #include <fcntl.h> +#include <android-base/logging.h> + #include <fs_mgr.h> -#include "mtdutils/mtdutils.h" -#include "mtdutils/mounts.h" -#include "roots.h" #include "common.h" #include "make_ext4fs.h" +#include "mounts.h" #include "wipe.h" #include "cryptfs.h" @@ -44,13 +46,13 @@ void load_volume_table() fstab = fs_mgr_read_fstab("/etc/recovery.fstab"); if (!fstab) { - LOGE("failed to read /etc/recovery.fstab\n"); + LOG(ERROR) << "failed to read /etc/recovery.fstab"; return; } ret = fs_mgr_add_entry(fstab, "/tmp", "ramdisk", "ramdisk"); if (ret < 0 ) { - LOGE("failed to add /tmp entry to fstab\n"); + LOG(ERROR) << "failed to add /tmp entry to fstab"; fs_mgr_free_fstab(fstab); fstab = NULL; return; @@ -74,7 +76,7 @@ Volume* volume_for_path(const char* path) { 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); + LOG(ERROR) << "unknown volume for path [" << path << "]"; return -1; } if (strcmp(v->fs_type, "ramdisk") == 0) { @@ -82,10 +84,8 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) { return 0; } - int result; - result = scan_mounted_volumes(); - if (result < 0) { - LOGE("failed to scan mounted volumes\n"); + if (!scan_mounted_volumes()) { + LOG(ERROR) << "failed to scan mounted volumes"; return -1; } @@ -93,8 +93,7 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) { mount_point = v->mount_point; } - const MountedVolume* mv = - find_mounted_volume_by_mount_point(mount_point); + MountedVolume* mv = find_mounted_volume_by_mount_point(mount_point); if (mv) { // volume is already mounted return 0; @@ -102,29 +101,30 @@ int ensure_path_mounted_at(const char* path, const char* mount_point) { 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. - mtd_scan_partitions(); - const MtdPartition* partition; - 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, mount_point); - return -1; - } - return mtd_mount_partition(partition, mount_point, v->fs_type, 0); - } else if (strcmp(v->fs_type, "ext4") == 0 || + if (strcmp(v->fs_type, "ext4") == 0 || strcmp(v->fs_type, "squashfs") == 0 || strcmp(v->fs_type, "vfat") == 0) { - result = mount(v->blk_device, mount_point, v->fs_type, - v->flags, v->fs_options); - if (result == 0) return 0; + int result = mount(v->blk_device, mount_point, v->fs_type, v->flags, v->fs_options); + if (result == -1 && fs_mgr_is_formattable(v)) { + LOG(ERROR) << "failed to mount " << mount_point << " (" << strerror(errno) + << ") , formatting....."; + bool crypt_footer = fs_mgr_is_encryptable(v) && !strcmp(v->key_loc, "footer"); + if (fs_mgr_do_format(v, crypt_footer) == 0) { + result = mount(v->blk_device, mount_point, v->fs_type, v->flags, v->fs_options); + } else { + PLOG(ERROR) << "failed to format " << mount_point; + return -1; + } + } - LOGE("failed to mount %s (%s)\n", mount_point, strerror(errno)); - return -1; + if (result == -1) { + PLOG(ERROR) << "failed to mount " << mount_point; + return -1; + } + return 0; } - LOGE("unknown fs_type \"%s\" for %s\n", v->fs_type, mount_point); + LOG(ERROR) << "unknown fs_type \"" << v->fs_type << "\" for " << mount_point; return -1; } @@ -136,7 +136,7 @@ int ensure_path_mounted(const char* path) { int ensure_path_unmounted(const char* path) { Volume* v = volume_for_path(path); if (v == NULL) { - LOGE("unknown volume for path [%s]\n", path); + LOG(ERROR) << "unknown volume for path [" << path << "]"; return -1; } if (strcmp(v->fs_type, "ramdisk") == 0) { @@ -144,15 +144,12 @@ int ensure_path_unmounted(const char* path) { return -1; } - int result; - result = scan_mounted_volumes(); - if (result < 0) { - LOGE("failed to scan mounted volumes\n"); + if (!scan_mounted_volumes()) { + LOG(ERROR) << "failed to scan mounted volumes"; return -1; } - const MountedVolume* mv = - find_mounted_volume_by_mount_point(v->mount_point); + MountedVolume* mv = find_mounted_volume_by_mount_point(v->mount_point); if (mv == NULL) { // volume is already unmounted return 0; @@ -170,7 +167,7 @@ static int exec_cmd(const char* path, char* const argv[]) { } waitpid(child, &status, 0); if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { - LOGE("%s failed with status %d\n", path, WEXITSTATUS(status)); + LOG(ERROR) << path << " failed with status " << WEXITSTATUS(status); } return WEXITSTATUS(status); } @@ -178,55 +175,32 @@ static int exec_cmd(const char* path, char* const argv[]) { int format_volume(const char* volume, const char* directory) { Volume* v = volume_for_path(volume); if (v == NULL) { - LOGE("unknown volume \"%s\"\n", volume); + LOG(ERROR) << "unknown volume \"" << volume << "\""; return -1; } if (strcmp(v->fs_type, "ramdisk") == 0) { // you can't format the ramdisk. - LOGE("can't format_volume \"%s\"", volume); + LOG(ERROR) << "can't format_volume \"" << volume << "\""; return -1; } if (strcmp(v->mount_point, volume) != 0) { - LOGE("can't give path \"%s\" to format_volume\n", volume); + LOG(ERROR) << "can't give path \"" << volume << "\" to format_volume"; return -1; } if (ensure_path_unmounted(volume) != 0) { - LOGE("format_volume failed to unmount \"%s\"\n", v->mount_point); + LOG(ERROR) << "format_volume failed to unmount \"" << v->mount_point << "\""; return -1; } - if (strcmp(v->fs_type, "yaffs2") == 0 || strcmp(v->fs_type, "mtd") == 0) { - mtd_scan_partitions(); - const MtdPartition* partition = mtd_find_partition_by_name(v->blk_device); - if (partition == NULL) { - LOGE("format_volume: no MTD partition \"%s\"\n", v->blk_device); - return -1; - } - - MtdWriteContext *write = mtd_write_partition(partition); - if (write == NULL) { - LOGW("format_volume: can't open MTD \"%s\"\n", v->blk_device); - return -1; - } else if (mtd_erase_blocks(write, -1) == (off_t) -1) { - LOGW("format_volume: can't erase MTD \"%s\"\n", v->blk_device); - mtd_write_close(write); - return -1; - } else if (mtd_write_close(write)) { - LOGW("format_volume: can't close MTD \"%s\"\n", v->blk_device); - return -1; - } - return 0; - } - if (strcmp(v->fs_type, "ext4") == 0 || strcmp(v->fs_type, "f2fs") == 0) { // if there's a key_loc that looks like a path, it should be a // block device for storing encryption metadata. wipe it too. if (v->key_loc != NULL && v->key_loc[0] == '/') { - LOGI("wiping %s\n", v->key_loc); + LOG(INFO) << "wiping " << v->key_loc; int fd = open(v->key_loc, O_WRONLY | O_CREAT, 0644); if (fd < 0) { - LOGE("format_volume: failed to open %s\n", v->key_loc); + LOG(ERROR) << "format_volume: failed to open " << v->key_loc; return -1; } wipe_block_device(fd, get_file_size(fd)); @@ -244,16 +218,19 @@ int format_volume(const char* volume, const char* directory) { 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); + LOG(ERROR) << "format_volume: crypt footer + negative length (" << length + << ") not supported on " << v->fs_type; return -1; } if (length < 0) { - LOGE("format_volume: negative length (%zd) not supported on %s\n", length, v->fs_type); + LOG(ERROR) << "format_volume: negative length (" << length + << ") not supported on " << v->fs_type; return -1; } char *num_sectors; if (asprintf(&num_sectors, "%zd", length / 512) <= 0) { - LOGE("format_volume: failed to create %s command for %s\n", v->fs_type, v->blk_device); + LOG(ERROR) << "format_volume: failed to create " << v->fs_type + << " command for " << v->blk_device; return -1; } const char *f2fs_path = "/sbin/mkfs.f2fs"; @@ -263,13 +240,13 @@ int format_volume(const char* volume, const char* directory) { free(num_sectors); } if (result != 0) { - LOGE("format_volume: make %s failed on %s with %d(%s)\n", v->fs_type, v->blk_device, result, strerror(errno)); + PLOG(ERROR) << "format_volume: make " << v->fs_type << " failed on " << v->blk_device; return -1; } return 0; } - LOGE("format_volume: fs_type \"%s\" unsupported\n", v->fs_type); + LOG(ERROR) << "format_volume: fs_type \"" << v->fs_type << "\" unsupported"; return -1; } @@ -279,7 +256,7 @@ int format_volume(const char* volume) { int setup_install_mounts() { if (fstab == NULL) { - LOGE("can't set up install mounts: no fstab loaded\n"); + LOG(ERROR) << "can't set up install mounts: no fstab loaded"; return -1; } for (int i = 0; i < fstab->num_entries; ++i) { @@ -288,13 +265,13 @@ int setup_install_mounts() { if (strcmp(v->mount_point, "/tmp") == 0 || strcmp(v->mount_point, "/cache") == 0) { if (ensure_path_mounted(v->mount_point) != 0) { - LOGE("failed to mount %s\n", v->mount_point); + LOG(ERROR) << "failed to mount " << v->mount_point; return -1; } } else { if (ensure_path_unmounted(v->mount_point) != 0) { - LOGE("failed to unmount %s\n", v->mount_point); + LOG(ERROR) << "failed to unmount " << v->mount_point; return -1; } } |