diff options
| -rw-r--r-- | uncrypt/Android.mk | 2 | ||||
| -rw-r--r-- | uncrypt/uncrypt.c | 44 |
2 files changed, 27 insertions, 19 deletions
diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk index 8d0a737..878d275 100644 --- a/uncrypt/Android.mk +++ b/uncrypt/Android.mk @@ -20,6 +20,6 @@ LOCAL_SRC_FILES := uncrypt.c LOCAL_MODULE := uncrypt -LOCAL_STATIC_LIBRARIES := libfs_mgr libcutils +LOCAL_STATIC_LIBRARIES := libfs_mgr liblog libcutils include $(BUILD_EXECUTABLE) diff --git a/uncrypt/uncrypt.c b/uncrypt/uncrypt.c index 77bfdc2..07e5ae6 100644 --- a/uncrypt/uncrypt.c +++ b/uncrypt/uncrypt.c @@ -48,6 +48,8 @@ #include <linux/fs.h> #include <sys/mman.h> +#define LOG_TAG "uncrypt" +#include <log/log.h> #include <cutils/properties.h> #include <fs_mgr.h> @@ -66,7 +68,7 @@ static int write_at_offset(unsigned char* buffer, size_t size, while (written < size) { ssize_t wrote = write(wfd, buffer + written, size - written); if (wrote < 0) { - fprintf(stderr, "error writing offset %lld: %s\n", offset, strerror(errno)); + ALOGE("error writing offset %lld: %s\n", offset, strerror(errno)); return -1; } written += wrote; @@ -110,13 +112,13 @@ static struct fstab* read_fstab() // The fstab path is always "/fstab.${ro.hardware}". char fstab_path[PATH_MAX+1] = "/fstab."; if (!property_get("ro.hardware", fstab_path+strlen(fstab_path), "")) { - fprintf(stderr, "failed to get ro.hardware\n"); + ALOGE("failed to get ro.hardware\n"); return NULL; } fstab = fs_mgr_read_fstab(fstab_path); if (!fstab) { - fprintf(stderr, "failed to read %s\n", fstab_path); + ALOGE("failed to read %s\n", fstab_path); return NULL; } @@ -194,14 +196,14 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de ret = stat(path, &sb); if (ret != 0) { - fprintf(stderr, "failed to stat %s\n", path); + ALOGE("failed to stat %s\n", path); return -1; } - printf(" block size: %ld bytes\n", (long)sb.st_blksize); + ALOGI(" block size: %ld bytes\n", (long)sb.st_blksize); int blocks = ((sb.st_size-1) / sb.st_blksize) + 1; - printf(" file size: %lld bytes, %d blocks\n", (long long)sb.st_size, blocks); + ALOGI(" file size: %lld bytes, %d blocks\n", (long long)sb.st_size, blocks); int* ranges; int range_alloc = 1; @@ -225,7 +227,7 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de int fd = open(path, O_RDONLY); if (fd < 0) { - fprintf(stderr, "failed to open fd for reading: %s\n", strerror(errno)); + ALOGE("failed to open fd for reading: %s\n", strerror(errno)); return -1; } fsync(fd); @@ -234,7 +236,7 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de if (encrypted) { wfd = open(blk_dev, O_WRONLY); if (wfd < 0) { - fprintf(stderr, "failed to open fd for writing: %s\n", strerror(errno)); + ALOGE("failed to open fd for writing: %s\n", strerror(errno)); return -1; } } @@ -245,7 +247,7 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de int block = head_block; ret = ioctl(fd, FIBMAP, &block); if (ret != 0) { - fprintf(stderr, "failed to find block %d\n", head_block); + ALOGE("failed to find block %d\n", head_block); return -1; } add_block_to_ranges(&ranges, &range_alloc, &range_used, block); @@ -264,7 +266,7 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de while (so_far < sb.st_blksize && pos < sb.st_size) { ssize_t this_read = read(fd, buffers[tail] + so_far, sb.st_blksize - so_far); if (this_read < 0) { - fprintf(stderr, "failed to read: %s\n", strerror(errno)); + ALOGE("failed to read: %s\n", strerror(errno)); return -1; } so_far += this_read; @@ -284,7 +286,7 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de int block = head_block; ret = ioctl(fd, FIBMAP, &block); if (ret != 0) { - fprintf(stderr, "failed to find block %d\n", head_block); + ALOGE("failed to find block %d\n", head_block); return -1; } add_block_to_ranges(&ranges, &range_alloc, &range_used, block); @@ -312,12 +314,13 @@ int produce_block_map(const char* path, const char* map_file, const char* blk_de } void wipe_misc() { + ALOGI("removing old commands from misc"); int i; for (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_RDWR); + int fd = open(v->blk_device, O_WRONLY); uint8_t zeroes[1088]; // sizeof(bootloader_message) from recovery memset(zeroes, 0, sizeof(zeroes)); @@ -326,7 +329,7 @@ void wipe_misc() { while (written < size) { ssize_t w = write(fd, zeroes, size-written); if (w < 0 && errno != EINTR) { - fprintf(stderr, "zero write failed: %s\n", strerror(errno)); + ALOGE("zero write failed: %s\n", strerror(errno)); return; } else { written += w; @@ -339,8 +342,10 @@ void wipe_misc() { } void reboot_to_recovery() { + ALOGI("rebooting to recovery"); property_set("sys.powerctl", "reboot,recovery"); sleep(10); + ALOGE("reboot didn't succeed?"); } int main(int argc, char** argv) @@ -366,18 +371,20 @@ int main(int argc, char** argv) // if we're rebooting to recovery without a package (say, // to wipe data), then we don't need to do anything before // going to recovery. - fprintf(stderr, "no recovery command file or no update package arg"); + ALOGI("no recovery command file or no update package arg"); reboot_to_recovery(); return 1; } map_file = CACHE_BLOCK_MAP; } + ALOGI("update package is %s", input_path); + // Turn the name of the file we're supposed to convert into an // absolute path, so we can find what filesystem it's on. char path[PATH_MAX+1]; if (realpath(input_path, path) == NULL) { - fprintf(stderr, "failed to convert %s to absolute path: %s\n", input_path, strerror(errno)); + ALOGE("failed to convert %s to absolute path: %s", input_path, strerror(errno)); return 1; } @@ -388,15 +395,15 @@ int main(int argc, char** argv) } const char* blk_dev = find_block_device(path, &encryptable, &encrypted); if (blk_dev == NULL) { - fprintf(stderr, "failed to find block device for %s\n", path); + ALOGE("failed to find block device for %s", path); return 1; } // 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). - printf("encryptable: %s\n", encryptable ? "yes" : "no"); - printf(" encrypted: %s\n", encrypted ? "yes" : "no"); + ALOGI("encryptable: %s\n", encryptable ? "yes" : "no"); + ALOGI(" encrypted: %s\n", encrypted ? "yes" : "no"); if (!encryptable) { // If the file is on a filesystem that doesn't support @@ -410,6 +417,7 @@ int main(int argc, char** argv) unlink(RECOVERY_COMMAND_FILE_TMP); } else { + ALOGI("writing block map %s", map_file); if (produce_block_map(path, map_file, blk_dev, encrypted) != 0) { return 1; } |