int format_volume(const char* volume) {
Volume* v = volume_for_path(volume);
if (v == NULL) {
LOGE("unknown volume \"%s\"\n", volume);
return -1;
}
if (strcmp(v->fs_type, "ramdisk") == 0) {
// you can't format the ramdisk.
LOGE("can't format_volume \"%s\"", volume);
return -1;
}
if (strcmp(v->mount_point, volume) != 0) {
LOGE("can't give path \"%s\" to format_volume\n", volume);
return -1;
}
if (ensure_path_unmounted(volume) != 0) {
LOGE("format_volume failed to unmount \"%s\"\n", 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->device);
if (partition == NULL) {
LOGE("format_volume: no MTD partition \"%s\"\n", v->device);
return -1;
}
MtdWriteContext *write = mtd_write_partition(partition);
if (write == NULL) {
LOGW("format_volume: can't open MTD \"%s\"\n", v->device);
return -1;
} else if (mtd_erase_blocks(write, -1) == (off_t) -1) {
LOGW("format_volume: can't erase MTD \"%s\"\n", v->device);
mtd_write_close(write);
return -1;
} else if (mtd_write_close(write)) {
LOGW("format_volume: can't close MTD \"%s\"\n", v->device);
return -1;
}
return 0;
}
if (strcmp(v->fs_type, "ext4") == 0) {
reset_ext4fs_info();
int result = make_ext4fs(v->device, NULL, NULL, 0, 0, 0);
if (result != 0) {
LOGE("format_volume: make_extf4fs failed on %s\n", v->device);
return -1;
}
return 0;
}
LOGE("format_volume: fs_type \"%s\" unsupported\n", v->fs_type);
return -1;
}
//INTENT_MOUNT, mount recovery.fstab
static intentResult* intent_unmount(int argc, char* argv[])
{
return_intent_result_if_fail(argc == 1);
return_intent_result_if_fail(argv != NULL);
int result = ensure_path_unmounted(argv[0]);
if (result == 0)
return miuiIntent_result_set(result, "ok");
return miuiIntent_result_set(result, "fail");
}
int bml_check_volume(const char *path) {
ui_print("Checking %s...\n", path);
ensure_path_unmounted(path);
if (0 == ensure_path_mounted(path)) {
ensure_path_unmounted(path);
return 0;
}
Volume *vol = volume_for_path(path);
if (vol == NULL) {
LOGE("Unable process volume! Skipping...\n");
return 0;
}
ui_print("%s may be rfs. Checking...\n", path);
char tmp[PATH_MAX];
sprintf(tmp, "mount -t rfs %s %s", vol->device, path);
int ret = __system(tmp);
printf("%d\n", ret);
return ret == 0 ? 1 : 0;
}
// backup /data/media support
// we reach here only if backup_data_media == 1
// backup_data_media can be set to 1 only in "custom backup and restore" menu AND if is_data_media() && !twrp_backup_mode.value
int nandroid_backup_datamedia(const char* backup_path) {
char tmp[PATH_MAX];
ui_print("\n>> Backing up /data/media...\n");
if (is_data_media_volume_path(backup_path)) {
// non fatal failure
LOGE(" - can't backup folder to its self, skipping...\n");
return 0;
}
if (0 != ensure_path_mounted("/data"))
return -1;
sprintf(tmp, "%s/%s", get_primary_storage_path(), NANDROID_HIDE_PROGRESS_FILE);
ensure_path_mounted(tmp);
int callback = !file_found(tmp);
compute_directory_stats("/data/media");
Volume *v = volume_for_path("/data");
if (v == NULL)
return -1;
char backup_file_image[PATH_MAX];
sprintf(backup_file_image, "%s/datamedia.%s", backup_path, v->fs_type == NULL ? "auto" : v->fs_type);
int fmt;
fmt = nandroid_get_default_backup_format();
if (fmt == NANDROID_BACKUP_FORMAT_TAR) {
sprintf(tmp, "cd / ; touch %s.tar ; set -o pipefail ; (tar -cpv data/media | split -a 1 -b 1000000000 /proc/self/fd/0 %s.tar.) 2> /proc/self/fd/1 ; exit $?",
backup_file_image, backup_file_image);
} else if (fmt == NANDROID_BACKUP_FORMAT_TGZ) {
sprintf(tmp, "cd / ; touch %s.tar.gz ; set -o pipefail ; (tar -cpv data/media | pigz -c -%d | split -a 1 -b 1000000000 /proc/self/fd/0 %s.tar.gz.) 2> /proc/self/fd/1 ; exit $?",
backup_file_image, compression_value.value, backup_file_image);
} else {
// non fatal failure
LOGE(" - backup format must be tar(.gz), skipping...\n");
return 0;
}
int ret;
ret = do_tar_compress(tmp, callback, backup_file_image);
ensure_path_unmounted("/data");
if (0 != ret)
return print_and_error("Failed to backup /data/media!\n", ret);
ui_print("Backup of /data/media completed.\n");
return 0;
}
int nandroid_restore_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char* name = basename(mount_point);
char tmp[PATH_MAX];
sprintf(tmp, "%s/%s.img", backup_path, name);
struct stat file_info;
if (0 != (ret = statfs(tmp, &file_info))) {
ui_print("%s.img not found. Skipping restore of %s.\n", name, mount_point);
return 0;
}
ensure_directory(mount_point);
int callback = stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info) != 0;
ui_print("Restoring %s...\n", name);
/*
if (0 != (ret = ensure_root_path_unmounted(root))) {
ui_print("Can't unmount %s!\n", mount_point);
return ret;
}
*/
if (0 != (ret = format_volume(mount_point))) {
ui_print("Error while formatting %s!\n", mount_point);
return ret;
}
if (0 != (ret = ensure_path_mounted(mount_point))) {
ui_print("Can't mount %s!\n", mount_point);
return ret;
}
nandroid_restore_handler restore_handler = get_restore_handler(mount_point);
if (restore_handler == NULL) {
ui_print("Error finding an appropriate restore handler.\n");
return -2;
}
if (0 != (ret = restore_handler(tmp, mount_point, callback))) {
ui_print("Error while restoring %s!\n", mount_point);
return ret;
}
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
return 0;
}
static int
copy_databk_to_data(){
printf("begin copy databk to data\n");
char *argv_execv[] = {"data_resume.sh", NULL};
ensure_path_mounted("/data");
ensure_path_mounted("/system");
pid_t pid =fork();
if(pid==0){
execv("/system/bin/data_resume.sh",argv_execv);
_exit(-1);
}
int status;
waitpid(pid, &status, 0);
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
printf("Error (Status %d),fail to resume data\n", WEXITSTATUS(status));
ensure_path_unmounted("/data");
ensure_path_unmounted("/system");
return -1;
}
printf("copy databk to data succeed\n");
ensure_path_unmounted("/data");
ensure_path_unmounted("/system");
return 0;
}
/* add by cjcheng start... */
static int
smdt_update_directory(const char* path, const char* unmount_when_done,
int* wipe_cache) {
ensure_path_mounted(path);
int result;
char new_path[PATH_MAX];
strlcpy(new_path, path, PATH_MAX);
strlcat(new_path, "/", PATH_MAX);
strlcat(new_path, "update.zip", PATH_MAX);
ui->Print("\n-- Install %s ...\n", new_path);
if (access(new_path, F_OK) == 0) {
ui->Print("\n read -- %s ok...\n", new_path);
ui->SetTipTitle(RecoveryUI::TIP_TITLE_READ_PACKAGE);
} else {
ui->Print("\n read -- %s error...\n", new_path);
if (unmount_when_done != NULL) {
ensure_path_unmounted(unmount_when_done);
}
return INSTALL_ERROR;
}
set_sdcard_update_bootloader_message();
char* copy = copy_sideloaded_package(new_path);
if (unmount_when_done != NULL) {
ensure_path_unmounted(unmount_when_done);
}
if (copy) {
result = install_package(copy, wipe_cache, TEMPORARY_INSTALL_FILE);
free(copy);
} else {
result = INSTALL_ERROR;
}
return result;
}
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read), and
// record any intent we were asked to communicate back to the system.
// this function is idempotent: call it as many times as you like.
static void
finish_recovery(const char *send_intent) {
// By this point, we're ready to return to the main system...
if (send_intent != NULL) {
FILE *fp = fopen_path(INTENT_FILE, "w");
if (fp == NULL) {
LOGE("Can't open %s\n", INTENT_FILE);
} else {
fputs(send_intent, fp);
check_and_fclose(fp, INTENT_FILE);
}
}
// Save the locale to cache, so if recovery is next started up
// 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);
}
// Copy logs to cache so the system can find out what happened.
copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
chmod(LOG_FILE, 0600);
chown(LOG_FILE, 1000, 1000); // system user
chmod(LAST_LOG_FILE, 0640);
chmod(LAST_INSTALL_FILE, 0644);
// Reset to normal system boot so recovery won't cycle indefinitely.
struct bootloader_message boot;
memset(&boot, 0, sizeof(boot));
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);
}
ensure_path_unmounted(CACHE_ROOT);
sync(); // For good measure.
}
int
ensure_path_unmounted (const char *path)
{
// if we are using /data/media, do not ever unmount volumes /data or /sdcard
if (volume_for_path ("/sdcard") == NULL
&& (strstr (path, "/sdcard") == path || strstr (path, "/data") == path))
{
return 0;
}
Volume *v = volume_for_path (path);
if (v == NULL)
{
// no /sdcard? let's assume /data/media
if (strstr (path, "/sdcard") == path && is_data_media ())
{
return ensure_path_unmounted ("/data");
}
LOGE ("unknown volume for path [%s]\n", path);
return -1;
}
if (strcmp (v->fs_type, "ramdisk") == 0)
{
// the ramdisk is always mounted; you can't unmount it.
return -1;
}
int result;
result = scan_mounted_volumes ();
if (result < 0)
{
LOGE ("failed to scan mounted volumes\n");
return -1;
}
const MountedVolume *mv =
find_mounted_volume_by_mount_point (v->mount_point);
if (mv == NULL)
{
// volume is already unmounted
return 0;
}
return unmount_mounted_volume (mv);
}
int nandroid_restore_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char* name = basename(mount_point);
char tmp[PATH_MAX];
sprintf(tmp, "%s/%s.img", backup_path, name);
struct stat file_info;
if (0 != (ret = statfs(tmp, &file_info))) {
ui_print("%s.img没有发现. 放弃还原 %s.\n", name, mount_point);
return 0;
}
ensure_directory(mount_point);
unyaffs_callback callback = NULL;
if (0 != stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info)) {
callback = yaffs_callback;
}
ui_print("还原 %s...\n", name);
/*
if (0 != (ret = ensure_root_path_unmounted(root))) {
ui_print("Can't unmount %s!\n", mount_point);
return ret;
}
*/
if (0 != (ret = format_volume(mount_point))) {
ui_print("格式化时出错 %s!\n", mount_point);
return ret;
}
if (0 != (ret = ensure_path_mounted(mount_point))) {
ui_print("不能挂载 %s!\n", mount_point);
return ret;
}
if (0 != (ret = unyaffs(tmp, mount_point, callback))) {
ui_print("还原时出错 %s!\n", mount_point);
return ret;
}
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
return 0;
}
int nandroid_backup_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char name[PATH_MAX];
char tmp[PATH_MAX];
strcpy(name, basename(mount_point));
struct stat file_info;
build_configuration_path(tmp, NANDROID_HIDE_PROGRESS_FILE);
ensure_path_mounted(tmp);
int callback = stat(tmp, &file_info) != 0;
ui_print("Backing up %s...\n", name);
if (0 != (ret = ensure_path_mounted(mount_point) != 0)) {
ui_print("Can't mount %s!\n", mount_point);
return ret;
}
compute_directory_stats(mount_point);
scan_mounted_volumes();
Volume *v = volume_for_path(mount_point);
const MountedVolume *mv = NULL;
if (v != NULL)
mv = find_mounted_volume_by_mount_point(v->mount_point);
if (strcmp(backup_path, "-") == 0)
sprintf(tmp, "/proc/self/fd/1");
else if (mv == NULL || mv->filesystem == NULL)
sprintf(tmp, "%s/%s.auto", backup_path, name);
else
sprintf(tmp, "%s/%s.%s", backup_path, name, mv->filesystem);
nandroid_backup_handler backup_handler = get_backup_handler(mount_point);
if (backup_handler == NULL) {
ui_print("Error finding an appropriate backup handler.\n");
return -2;
}
ret = backup_handler(mount_point, tmp, callback);
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
if (0 != ret) {
ui_print("Error while making a backup image of %s!\n", mount_point);
return ret;
}
ui_print("Backup of %s completed.\n", name);
return 0;
}
static int
erase_volume(const char *volume) {
ui->SetBackground(RecoveryUI::INSTALLING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
ui->Print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
if (strcmp(volume, "/cache") == 0) {
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
}
return format_volume(volume);
}
static int
erase_volume(const char *volume) {
ui_set_background(BACKGROUND_ICON_INSTALLING);
ui_show_indeterminate_progress();
ui_print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
if (strcmp(volume, "/cache") == 0) {
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
}
return format_volume(volume);
}
int nandroid_backup_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char name[PATH_MAX];
strcpy(name, basename(mount_point));
struct stat file_info;
int callback = stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info) != 0;
ui_print("备份中 %s...\n", name);
if (0 != (ret = ensure_path_mounted(mount_point) != 0)) {
ui_print("无法挂载 %s!\n", mount_point);
return ret;
}
compute_directory_stats(mount_point);
char tmp[PATH_MAX];
scan_mounted_volumes();
Volume *v = volume_for_path(mount_point);
MountedVolume *mv = NULL;
if (v != NULL)
mv = find_mounted_volume_by_mount_point(v->mount_point);
if (strcmp(backup_path, "-") == 0)
sprintf(tmp, "/proc/self/fd/1");
else if (mv == NULL || mv->filesystem == NULL)
sprintf(tmp, "%s/%s.auto", backup_path, name);
else
sprintf(tmp, "%s/%s.%s", backup_path, name, mv->filesystem);
nandroid_backup_handler backup_handler = get_backup_handler(mount_point);
if (backup_handler == NULL) {
ui_print("找不到合适的备份方案.\n");
return -2;
}
ret = backup_handler(mount_point, tmp, callback);
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
if (0 != ret) {
ui_print("生成下列镜像文件时失败： %s!\n", mount_point);
return ret;
}
ui_print("备份 %s 完成.\n", name);
return 0;
}
int setup_install_mounts() {
if (fstab == NULL) {
LOGE("can't set up install mounts: no fstab loaded\n");
return -1;
}
for (int i = 0; i < fstab->num_entries; ++i) {
Volume* v = fstab->recs + i;
if (strcmp(v->mount_point, "/tmp") == 0 ||
strcmp(v->mount_point, "/cache") == 0) {
if (ensure_path_mounted(v->mount_point) != 0) return -1;
} else {
if (ensure_path_unmounted(v->mount_point) != 0) return -1;
}
}
return 0;
}
void erase_dalvik_cache(int orscallback) {
if(orscallback && orswipeprompt && !confirm_selection("Confirm wipe?","Yes- Wipe Dalvik Cache")) {
ui_print("Skipping dalvik cache wipe...\n");
return;
}
if (0 != ensure_path_mounted("/data"))
return;
ensure_path_mounted("/sd-ext");
ensure_path_mounted("/cache");
__system("rm -r /data/dalvik-cache");
__system("rm -r /cache/dalvik-cache");
__system("rm -r /sd-ext/dalvik-cache");
ui_print("Dalvik Cache wiped.\n");
ensure_path_unmounted("/data");
return;
}
int verify_root_and_recovery() {
if (ensure_path_mounted("/system") != 0)
return 0;
int ret = 0;
struct stat st;
if (0 == lstat("/system/etc/install-recovery.sh", &st)) {
if (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
ui_show_text(1);
ret = 1;
if (confirm_selection("ROM may flash stock recovery on boot. Fix?", "Yes - Disable recovery flash")) {
__system("chmod -x /system/etc/install-recovery.sh");
}
}
}
if (0 == lstat("/system/bin/su", &st)) {
if (S_ISREG(st.st_mode)) {
if ((st.st_mode & (S_ISUID | S_ISGID)) != (S_ISUID | S_ISGID)) {
ui_show_text(1);
ret = 1;
if (confirm_selection("Root access possibly lost. Fix?", "Yes - Fix root (/system/bin/su)")) {
__system("chmod 6755 /system/bin/su");
}
}
}
}
if (0 == lstat("/system/xbin/su", &st)) {
if (S_ISREG(st.st_mode)) {
if ((st.st_mode & (S_ISUID | S_ISGID)) != (S_ISUID | S_ISGID)) {
ui_show_text(1);
ret = 1;
if (confirm_selection("Root access possibly lost. Fix?", "Yes - Fix root (/system/xbin/su)")) {
__system("chmod 6755 /system/xbin/su");
}
}
}
}
ensure_path_unmounted("/system");
return ret;
}
// reboot: Reboot the system. Return -1 on error, no return on success
int tw_reboot(RebootCommand command)
{
if (DataManager_GetIntValue(TW_BACKUP_SYSTEM_SIZE) < DataManager_GetIntValue(TW_MIN_SYSTEM_VAR)) {
update_system_details();
if (DataManager_GetIntValue(TW_BACKUP_SYSTEM_SIZE) < DataManager_GetIntValue(TW_MIN_SYSTEM_VAR)) {
LOGE("System is not installed - preventing reboot!\n");
return -1;
}
}
// Always force a sync before we reboot
sync();
ensure_path_unmounted("/sdcard");
switch (command)
{
case rb_current:
case rb_system:
finish_recovery("s");
sync();
check_and_run_script("/sbin/rebootsystem.sh", "reboot system");
return reboot(RB_AUTOBOOT);
case rb_recovery:
check_and_run_script("/sbin/rebootrecovery.sh", "reboot recovery");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "recovery");
case rb_bootloader:
check_and_run_script("/sbin/rebootbootloader.sh", "reboot bootloader");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "bootloader");
case rb_poweroff:
check_and_run_script("/sbin/poweroff.sh", "power off");
return reboot(RB_POWER_OFF);
case rb_download:
check_and_run_script("/sbin/rebootdownload.sh", "reboot download");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "download");
return 1;
default:
return -1;
}
return -1;
}
void device_toggle_truedualboot(void) {
char confirm[PATH_MAX];
int enable = dualboot_is_tdb_enabled();
#ifndef PHILZ_TOUCH_RECOVERY
ui_setMenuTextColor(MENU_TEXT_COLOR_RED);
#endif
sprintf(confirm, "Yes - %s TrueDualBoot", enable?"DISABLE":"ENABLE");
if (confirm_selection("This will WIPE DATA. Confirm?", confirm)) {
// unmount /data
if(ensure_path_unmounted("/data")!=0) {
LOGE("Error unmounting /data!\n");
return;
}
// format /data
ui_set_background(BACKGROUND_ICON_INSTALLING);
ui_show_indeterminate_progress();
ui_print("Formatting /data...\n");
set_force_raw_format_enabled(1);
if(format_volume("/data")!=0) {
ui_print("Error formatting /data!\n");
ui_reset_progress();
return;
}
ui_reset_progress();
set_force_raw_format_enabled(0);
ui_print("Done.\n");
// toggle
dualboot_set_tdb_enabled(!enable);
}
#ifndef PHILZ_TOUCH_RECOVERY
ui_setMenuTextColor(MENU_TEXT_COLOR);
#endif
return;
}
int nandroid_backup_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char name[PATH_MAX];
strcpy(name, basename(mount_point));
ensure_path_mounted("/sdcard");
struct stat file_info;
int callback = stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info) != 0;
ui_print("Backing up %s...\n", name);
if (0 != (ret = ensure_path_mounted(mount_point) != 0)) {
ui_print("Can't mount %s!\n", mount_point);
return ret;
}
compute_directory_stats(mount_point);
char tmp[PATH_MAX];
scan_mounted_volumes();
Volume *v = volume_for_path(mount_point);
MountedVolume *mv = NULL;
if (v != NULL)
mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL || mv->filesystem == NULL)
sprintf(tmp, "%s/%s.auto", backup_path, name);
else
sprintf(tmp, "%s/%s.%s", backup_path, name, mv->filesystem);
nandroid_backup_handler backup_handler = get_backup_handler(mount_point);
if (backup_handler == NULL) {
ui_print("Error finding an appropriate backup handler.\n");
return -2;
}
ret = backup_handler(mount_point, tmp, callback);
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
if (0 != ret) {
ui_print("Error while making a backup image of %s!\n", mount_point);
return ret;
}
ui_print("Backup of %s completed.\n", name);
return 0;
}
int replace_device_node(Volume* vol, struct stat* stat) {
if(stat==NULL) return -1;
ssize_t len;
char resolved_path[PATH_MAX];
if((len = readlink(vol->device, resolved_path, sizeof(resolved_path)-1)) != -1)
resolved_path[len] = '\0';
else sprintf(resolved_path, "%s", vol->device);
if(ensure_path_unmounted(vol->mount_point)!=0) {
LOGE("replace_device_node: could not unmount device!\n");
return -1;
} if(unlink(resolved_path)!=0) {
LOGE("replace_device_node: could not delete node!\n");
return -1;
} if(mknod(resolved_path, stat->st_mode, stat->st_rdev)!=0) {
LOGE("replace_device_node: could not create node!\n");
return -1;
}
return 0;
}
int ensure_path_unmounted(const char* path) {
// if we are using /data/media, do not ever unmount volumes /data or /sdcard
if (is_data_media_volume_path(path)) {
return ensure_path_unmounted("/data");
}
if (strstr(path, "/data") == path && is_data_media() && !ignore_data_media) {
return 0;
}
Volume* v = volume_for_path(path);
if (v == NULL) {
LOGE("unknown volume for path [%s]\n", path);
return -1;
}
if (strcmp(v->fs_type, "ramdisk") == 0) {
// the ramdisk is always mounted; you can't unmount it.
return -1;
}
int result;
result = scan_mounted_volumes();
if (result < 0) {
LOGE("failed to scan mounted volumes\n");
return -1;
}
const MountedVolume* mv =
find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
// volume is already unmounted
return 0;
}
if (fs_mgr_is_voldmanaged(volume_for_path(v->mount_point)))
return vold_unmount_volume(v->mount_point, 0, 1) == CommandOkay ? 0 : -1;
return unmount_mounted_volume(mv);
}
int set_active_system(int num) {
int i;
char* mount_point;
Volume* system0 = volume_for_path("/system");
Volume* system1 = volume_for_path("/system1");
Volume* boot0 = volume_for_path("/boot");
Volume* boot1 = volume_for_path("/boot1");
Volume* radio0 = volume_for_path("/radio");
Volume* radio1 = volume_for_path("/radio1");
handle_volume_request(system0, system1, num);
handle_volume_request(boot0, boot1, num);
handle_volume_request(radio0, radio1, num);
if(ensure_path_unmounted("/data")!=0) {
LOGE("could not unmount /data!\n");
return -1;
}
selected_dualsystem_mode = num;
return 0;
}
static int
erase_volume(const char *volume) {
ui->SetBackground(RecoveryUI::ERASING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
/* add by cjcheng start... */
if (strcmp(volume, "/cache") == 0) {
ui->SetTipTitle(RecoveryUI::TIP_TITLE_WIPE_CACHE);
} else if (strcmp(volume, "/data") == 0) {
ui->SetTipTitle(RecoveryUI::TIP_TITLE_WIPE_DATA);
}
/* add by cjcheng end... */
ui->Print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
if (strcmp(volume, "/cache") == 0) {
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
}
return format_volume(volume);
}
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read), and
// record any intent we were asked to communicate back to the system.
// this function is idempotent: call it as many times as you like.
static void
finish_recovery(const char *send_intent) {
// By this point, we're ready to return to the main system...
if (send_intent != NULL) {
FILE *fp = fopen_path(INTENT_FILE, "w");
if (fp == NULL) {
LOGE("Can't open %s\n", INTENT_FILE);
} else {
fputs(send_intent, fp);
check_and_fclose(fp, INTENT_FILE);
}
}
// Copy logs to cache so the system can find out what happened.
copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
chmod(LOG_FILE, 0600);
chown(LOG_FILE, 1000, 1000); // system user
chmod(LAST_LOG_FILE, 0640);
chmod(LAST_INSTALL_FILE, 0644);
// Reset to mormal system boot so recovery won't cycle indefinitely.
struct bootloader_message boot;
memset(&boot, 0, sizeof(boot));
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);
}
ensure_path_unmounted(CACHE_ROOT);
sync(); // For good measure.
}
static int
update_directory(const char* path, const char* unmount_when_done,
int* wipe_cache, Device* device) {
ensure_path_mounted(path);
const char* MENU_HEADERS[] = { "Choose a package to install:",
path,
"",
NULL };
DIR* d;
struct dirent* de;
d = opendir(path);
if (d == NULL) {
LOGE("error opening %s: %s\n", path, strerror(errno));
if (unmount_when_done != NULL) {
ensure_path_unmounted(unmount_when_done);
}
return 0;
}
const char** headers = prepend_title(MENU_HEADERS);
int d_size = 0;
int d_alloc = 10;
char** dirs = (char**)malloc(d_alloc * sizeof(char*));
int z_size = 1;
int z_alloc = 10;
char** zips = (char**)malloc(z_alloc * sizeof(char*));
zips[0] = strdup("../");
while ((de = readdir(d)) != NULL) {
int name_len = strlen(de->d_name);
if (de->d_type == DT_DIR) {
// skip "." and ".." entries
if (name_len == 1 && de->d_name[0] == '.') continue;
if (name_len == 2 && de->d_name[0] == '.' &&
de->d_name[1] == '.') continue;
if (d_size >= d_alloc) {
d_alloc *= 2;
dirs = (char**)realloc(dirs, d_alloc * sizeof(char*));
}
dirs[d_size] = (char*)malloc(name_len + 2);
strcpy(dirs[d_size], de->d_name);
dirs[d_size][name_len] = '/';
dirs[d_size][name_len+1] = '\0';
++d_size;
} else if (de->d_type == DT_REG &&
name_len >= 4 &&
strncasecmp(de->d_name + (name_len-4), ".zip", 4) == 0) {
if (z_size >= z_alloc) {
z_alloc *= 2;
zips = (char**)realloc(zips, z_alloc * sizeof(char*));
}
zips[z_size++] = strdup(de->d_name);
}
}
closedir(d);
qsort(dirs, d_size, sizeof(char*), compare_string);
qsort(zips, z_size, sizeof(char*), compare_string);
// append dirs to the zips list
if (d_size + z_size + 1 > z_alloc) {
z_alloc = d_size + z_size + 1;
zips = (char**)realloc(zips, z_alloc * sizeof(char*));
}
memcpy(zips + z_size, dirs, d_size * sizeof(char*));
free(dirs);
z_size += d_size;
zips[z_size] = NULL;
int result;
int chosen_item = 0;
do {
chosen_item = get_menu_selection(headers, zips, 1, chosen_item, device);
char* item = zips[chosen_item];
int item_len = strlen(item);
if (chosen_item == 0) { // item 0 is always "../"
// go up but continue browsing (if the caller is update_directory)
result = -1;
break;
} else if (item[item_len-1] == '/') {
// recurse down into a subdirectory
char new_path[PATH_MAX];
strlcpy(new_path, path, PATH_MAX);
strlcat(new_path, "/", PATH_MAX);
strlcat(new_path, item, PATH_MAX);
new_path[strlen(new_path)-1] = '\0'; // truncate the trailing '/'
result = update_directory(new_path, unmount_when_done, wipe_cache, device);
if (result >= 0) break;
} else {
// selected a zip file: attempt to install it, and return
// the status to the caller.
char new_path[PATH_MAX];
strlcpy(new_path, path, PATH_MAX);
strlcat(new_path, "/", PATH_MAX);
strlcat(new_path, item, PATH_MAX);
ui->Print("\n-- Install %s ...\n", path);
set_sdcard_update_bootloader_message();
char* copy = copy_sideloaded_package(new_path);
if (unmount_when_done != NULL) {
ensure_path_unmounted(unmount_when_done);
}
if (copy) {
result = install_package(copy, wipe_cache, TEMPORARY_INSTALL_FILE);
free(copy);
} else {
result = INSTALL_ERROR;
}
break;
}
} while (true);
int i;
for (i = 0; i < z_size; ++i) free(zips[i]);
free(zips);
free(headers);
if (unmount_when_done != NULL) {
ensure_path_unmounted(unmount_when_done);
}
return result;
}
static int
erase_volume(const char *volume) {
bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
ui->SetBackground(RecoveryUI::ERASING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
saved_log_file* head = NULL;
if (is_cache) {
// If we're reformatting /cache, we load any
// "/cache/recovery/last*" files into memory, so we can restore
// them after the reformat.
ensure_path_mounted(volume);
DIR* d;
struct dirent* de;
d = opendir(CACHE_LOG_DIR);
if (d) {
char path[PATH_MAX];
strcpy(path, CACHE_LOG_DIR);
strcat(path, "/");
int path_len = strlen(path);
while ((de = readdir(d)) != NULL) {
if (strncmp(de->d_name, "last", 4) == 0) {
saved_log_file* p = (saved_log_file*) malloc(sizeof(saved_log_file));
strcpy(path+path_len, de->d_name);
p->name = strdup(path);
if (stat(path, &(p->st)) == 0) {
// truncate files to 512kb
if (p->st.st_size > (1 << 19)) {
p->st.st_size = 1 << 19;
}
p->data = (unsigned char*) malloc(p->st.st_size);
FILE* f = fopen(path, "rb");
fread(p->data, 1, p->st.st_size, f);
fclose(f);
p->next = head;
head = p;
} else {
free(p);
}
}
}
closedir(d);
} else {
if (errno != ENOENT) {
printf("opendir failed: %s\n", strerror(errno));
}
}
}
ui->Print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
int result = format_volume(volume);
if (is_cache) {
while (head) {
FILE* f = fopen_path(head->name, "wb");
if (f) {
fwrite(head->data, 1, head->st.st_size, f);
fclose(f);
chmod(head->name, head->st.st_mode);
chown(head->name, head->st.st_uid, head->st.st_gid);
}
free(head->name);
free(head->data);
saved_log_file* temp = head->next;
free(head);
head = temp;
}
// Any part of the log we'd copied to cache is now gone.
// Reset the pointer so we copy from the beginning of the temp
// log.
tmplog_offset = 0;
copy_logs();
}
return result;
}
void show_partition_menu()
{
static char* headers[] = { "Mounts and Storage Menu",
"",
NULL
};
static MountMenuEntry* mount_menu = NULL;
static FormatMenuEntry* format_menu = NULL;
typedef char* string;
int i, mountable_volumes, formatable_volumes;
int num_volumes;
Volume* device_volumes;
num_volumes = get_num_volumes();
device_volumes = get_device_volumes();
string options[255];
if(!device_volumes)
return;
mountable_volumes = 0;
formatable_volumes = 0;
mount_menu = malloc(num_volumes * sizeof(MountMenuEntry));
format_menu = malloc(num_volumes * sizeof(FormatMenuEntry));
for (i = 0; i < num_volumes; ++i) {
Volume* v = &device_volumes[i];
if(strcmp("ramdisk", v->fs_type) != 0 && strcmp("mtd", v->fs_type) != 0 && strcmp("emmc", v->fs_type) != 0 && strcmp("bml", v->fs_type) != 0) {
if (strcmp("datamedia", v->fs_type) != 0) {
sprintf(&mount_menu[mountable_volumes].mount, "mount %s", v->mount_point);
sprintf(&mount_menu[mountable_volumes].unmount, "unmount %s", v->mount_point);
mount_menu[mountable_volumes].v = &device_volumes[i];
++mountable_volumes;
}
if (is_safe_to_format(v->mount_point)) {
sprintf(&format_menu[formatable_volumes].txt, "format %s", v->mount_point);
format_menu[formatable_volumes].v = &device_volumes[i];
++formatable_volumes;
}
}
else if (strcmp("ramdisk", v->fs_type) != 0 && strcmp("mtd", v->fs_type) == 0 && is_safe_to_format(v->mount_point))
{
sprintf(&format_menu[formatable_volumes].txt, "format %s", v->mount_point);
format_menu[formatable_volumes].v = &device_volumes[i];
++formatable_volumes;
}
}
static char* confirm_format = "Confirm format?";
static char* confirm = "Yes - Format";
char confirm_string[255];
for (;;)
{
for (i = 0; i < mountable_volumes; i++)
{
MountMenuEntry* e = &mount_menu[i];
Volume* v = e->v;
if(is_path_mounted(v->mount_point))
options[i] = e->unmount;
else
options[i] = e->mount;
}
for (i = 0; i < formatable_volumes; i++)
{
FormatMenuEntry* e = &format_menu[i];
options[mountable_volumes+i] = e->txt;
}
if (!is_data_media()) {
options[mountable_volumes + formatable_volumes] = "mount USB storage";
options[mountable_volumes + formatable_volumes + 1] = NULL;
}
else {
options[mountable_volumes + formatable_volumes] = "format /data and /data/media (/sdcard)";
options[mountable_volumes + formatable_volumes + 1] = NULL;
}
int chosen_item = get_menu_selection(headers, &options, 0, 0);
if (chosen_item == GO_BACK)
break;
if (chosen_item == (mountable_volumes+formatable_volumes)) {
if (!is_data_media()) {
show_mount_usb_storage_menu();
}
else {
if (!confirm_selection("format /data and /data/media (/sdcard)", confirm))
continue;
ignore_data_media_workaround(1);
ui_print("Formatting /data...\n");
if (0 != format_volume("/data"))
ui_print("Error formatting /data!\n");
else
ui_print("Done.\n");
ignore_data_media_workaround(0);
}
}
else if (chosen_item < mountable_volumes) {
MountMenuEntry* e = &mount_menu[chosen_item];
Volume* v = e->v;
if (is_path_mounted(v->mount_point))
{
if (0 != ensure_path_unmounted(v->mount_point))
ui_print("Error unmounting %s!\n", v->mount_point);
}
else
{
if (0 != ensure_path_mounted(v->mount_point))
ui_print("Error mounting %s!\n", v->mount_point);
}
}
else if (chosen_item < (mountable_volumes + formatable_volumes))
{
chosen_item = chosen_item - mountable_volumes;
FormatMenuEntry* e = &format_menu[chosen_item];
Volume* v = e->v;
sprintf(confirm_string, "%s - %s", v->mount_point, confirm_format);
if (!confirm_selection(confirm_string, confirm))
continue;
ui_print("Formatting %s...\n", v->mount_point);
if (0 != format_volume(v->mount_point))
ui_print("Error formatting %s!\n", v->mount_point);
else
ui_print("Done.\n");
}
}
free(mount_menu);
free(format_menu);
}
int format_unknown_device(const char *device, const char* path, const char *fs_type)
{
LOGI("Formatting unknown device.\n");
if (fs_type != NULL && get_flash_type(fs_type) != UNSUPPORTED)
return erase_raw_partition(fs_type, device);
// if this is SDEXT:, don't worry about it if it does not exist.
if (0 == strcmp(path, "/sd-ext"))
{
struct stat st;
Volume *vol = volume_for_path("/sd-ext");
if (vol == NULL || 0 != stat(vol->device, &st))
{
ui_print("No app2sd partition found. Skipping format of /sd-ext.\n");
return 0;
}
}
if (NULL != fs_type) {
if (strcmp("ext3", fs_type) == 0) {
LOGI("Formatting ext3 device.\n");
if (0 != ensure_path_unmounted(path)) {
LOGE("Error while unmounting %s.\n", path);
return -12;
}
return format_ext3_device(device);
}
if (strcmp("ext2", fs_type) == 0) {
LOGI("Formatting ext2 device.\n");
if (0 != ensure_path_unmounted(path)) {
LOGE("Error while unmounting %s.\n", path);
return -12;
}
return format_ext2_device(device);
}
}
if (0 != ensure_path_mounted(path))
{
ui_print("Error mounting %s!\n", path);
ui_print("Skipping format...\n");
return 0;
}
static char tmp[PATH_MAX];
if (strcmp(path, "/data") == 0) {
sprintf(tmp, "cd /data ; for f in $(ls -a | grep -v ^media$); do rm -rf $f; done");
__system(tmp);
// if the /data/media sdcard has already been migrated for android 4.2,
// prevent the migration from happening again by writing the .layout_version
struct stat st;
if (0 == lstat("/data/media/0", &st)) {
char* layout_version = "2";
FILE* f = fopen("/data/.layout_version", "wb");
if (NULL != f) {
fwrite(layout_version, 1, 2, f);
fclose(f);
}
else {
LOGI("error opening /data/.layout_version for write.\n");
}
}
else {
LOGI("/data/media/0 not found. migration may occur.\n");
}
}
else {
sprintf(tmp, "rm -rf %s/*", path);
__system(tmp);
sprintf(tmp, "rm -rf %s/.*", path);
__system(tmp);
}
ensure_path_unmounted(path);
return 0;
}
int format_device(const char *device, const char *path, const char *fs_type) {
Volume* v = volume_for_path(path);
if (v == NULL) {
// silent failure for sd-ext
if (strcmp(path, "/sd-ext") == 0)
return -1;
LOGE("unknown volume \"%s\"\n", path);
return -1;
}
if (is_data_media_volume_path(path)) {
return format_unknown_device(NULL, path, NULL);
}
if (strstr(path, "/data") == path && is_data_media()) {
return format_unknown_device(NULL, path, NULL);
}
if (strcmp(fs_type, "ramdisk") == 0) {
// you can't format the ramdisk.
LOGE("can't format_volume \"%s\"", path);
return -1;
}
if (strcmp(fs_type, "rfs") == 0) {
if (ensure_path_unmounted(path) != 0) {
LOGE("format_volume failed to unmount \"%s\"\n", v->mount_point);
return -1;
}
if (0 != format_rfs_device(device, path)) {
LOGE("format_volume: format_rfs_device failed on %s\n", device);
return -1;
}
return 0;
}
if (strcmp(v->mount_point, path) != 0) {
return format_unknown_device(v->device, path, NULL);
}
if (ensure_path_unmounted(path) != 0) {
LOGE("format_volume failed to unmount \"%s\"\n", v->mount_point);
return -1;
}
if (strcmp(fs_type, "yaffs2") == 0 || strcmp(fs_type, "mtd") == 0) {
mtd_scan_partitions();
const MtdPartition* partition = mtd_find_partition_by_name(device);
if (partition == NULL) {
LOGE("format_volume: no MTD partition \"%s\"\n", device);
return -1;
}
MtdWriteContext *write = mtd_write_partition(partition);
if (write == NULL) {
LOGW("format_volume: can't open MTD \"%s\"\n", device);
return -1;
} else if (mtd_erase_blocks(write, -1) == (off_t) -1) {
LOGW("format_volume: can't erase MTD \"%s\"\n", device);
mtd_write_close(write);
return -1;
} else if (mtd_write_close(write)) {
LOGW("format_volume: can't close MTD \"%s\"\n",device);
return -1;
}
return 0;
}
if (strcmp(fs_type, "ext4") == 0) {
int length = 0;
if (strcmp(v->fs_type, "ext4") == 0) {
// Our desired filesystem matches the one in fstab, respect v->length
length = v->length;
}
reset_ext4fs_info();
int result = make_ext4fs(device, length, v->mount_point, sehandle);
if (result != 0) {
LOGE("format_volume: make_extf4fs failed on %s\n", device);
return -1;
}
return 0;
}
return format_unknown_device(device, path, fs_type);
}