int main(int argc, char** argv) {
const char* input_path;
const char* map_file;
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;
}
// 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();
} 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;
}
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();
}
int status = uncrypt(input_path, map_file, status_fd);
if (status != 0) {
android::base::WriteStringToFd("-1\n", status_fd);
close(status_fd);
return 1;
}
android::base::WriteStringToFd("100\n", status_fd);
close(status_fd);
}
return 0;
}
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);
}
usage(argv[0]);
return 2;
}
int main(int argc, char** argv)
{
const char* input_path;
const char* map_file;
int do_reboot = 1;
if (argc != 1 && argc != 3) {
fprintf(stderr, "usage: %s [<transform_path> <map_file>]\n", argv[0]);
return 2;
}
if (argc == 3) {
// when command-line args are given this binary is being used
// for debugging; don't reboot to recovery at the end.
input_path = argv[1];
map_file = argv[2];
do_reboot = 0;
} else {
input_path = parse_recovery_command_file();
if (input_path == NULL) {
// 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.
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) {
ALOGE("failed to convert %s to absolute path: %s", input_path, strerror(errno));
return 1;
}
int encryptable;
int encrypted;
if (read_fstab() == NULL) {
return 1;
}
const char* blk_dev = find_block_device(path, &encryptable, &encrypted);
if (blk_dev == NULL) {
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).
ALOGI("encryptable: %s\n", encryptable ? "yes" : "no");
ALOGI(" encrypted: %s\n", encrypted ? "yes" : "no");
// Recovery supports installing packages from 3 paths: /cache,
// /data, and /sdcard. (On a particular device, other locations
// may work, but those are three we actually expect.)
//
// On /data we want to convert the file to a block map so that we
// can read the package without mounting the partition. On /cache
// and /sdcard we leave the file alone.
if (strncmp(path, "/data/", 6) != 0) {
// path does not start with "/data/"; leave it alone.
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;
}
}
wipe_misc();
rename(RECOVERY_COMMAND_FILE_TMP, RECOVERY_COMMAND_FILE);
if (do_reboot) reboot_to_recovery();
return 0;
}
