Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
char* result = NULL;
if (argc != 1) {
return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
}
char* mount_point;
if (ReadArgs(state, argv, 1, &mount_point) < 0) {
return NULL;
}
if (strlen(mount_point) == 0) {
ErrorAbort(state, "mount_point argument to unmount() can't be empty");
goto done;
}
scan_mounted_volumes();
const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
if (vol == NULL) {
fprintf(stderr, "unmount of %s failed; no such volume\n", mount_point);
result = strdup("");
} else {
unmount_mounted_volume(vol);
result = mount_point;
}
done:
if (result != mount_point) free(mount_point);
return StringValue(result);
}
int ensure_path_unmounted(const char* path) {
if (PartitionManager.UnMount_By_Path(path, true))
return 0;
else
return -1;
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;
}
return unmount_mounted_volume(mv);
}
int ensure_path_unmounted(const char* path) {
// if we are using /data/media, do not ever unmount volumes /data or /sdcard
if (strstr(path, "/data") == path && is_data_media()) {
return 0;
}
Volume* v = volume_for_path(path);
if (v == NULL) {
LOGE("unknown volume for path [%s]\n", path);
return -1;
}
if (is_data_media_volume_path(path)) {
return ensure_path_unmounted("/data");
}
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
ensure_root_path_unmounted(const char *root_path)
{
const RootInfo *info = get_root_info_for_path(root_path);
if (info == NULL) {
return -1;
}
if (info->mount_point == NULL) {
/* This root can't be mounted, so by definition it isn't.
*/
return 0;
}
//xxx if TMP: (or similar) just return error
/* See if this root is already mounted.
*/
int ret = scan_mounted_volumes();
if (ret < 0) {
return ret;
}
const MountedVolume *volume;
volume = find_mounted_volume_by_mount_point(info->mount_point);
if (volume == NULL) {
/* It's not mounted.
*/
return 0;
}
return unmount_mounted_volume(volume);
}
int ensure_path_unmounted(const char* path) {
Volume* v = volume_for_path(path);
#if defined(CACHE_MERGE_SUPPORT)
if (strncmp(path, "/cache", 6) == 0) {
unlink(path);
return 0;
}
#endif
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;
}
return unmount_mounted_volume(mv);
}
static int replace_device_node(int num, struct stat* statbuf) {
scan_mounted_volumes();
MountedVolume * mv = find_mounted_volume_by_real_node(part_table[num].path);
if(mv!=NULL && unmount_mounted_volume(mv)!=0) {
LOGE("could not unmount device!\n");
return -1;
}
unlink(part_table[num].path);
if(mknod(part_table[num].path, statbuf->st_mode, statbuf->st_rdev)!=0) {
LOGE("could not create node!\n");
return -1;
}
return 0;
}
int ensure_volume_unmounted(fstab_rec* v, bool detach) {
if (v == NULL) {
LOGE("cannot unmount unknown volume\n");
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;
}
if (fs_mgr_is_voldmanaged(v)) {
if (!strcmp(v->mount_point, "auto")) {
return vold_unmount_auto_volume(v->label, 0, 1, detach);
}
return vold_unmount_volume(v->mount_point, 0, 1, detach);
}
const MountedVolume* mv =
find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
// volume is already unmounted
return 0;
}
if (detach) {
result = unmount_mounted_volume_detach(mv);
}
else {
result = unmount_mounted_volume(mv);
}
return result;
}
int ensure_root_path_unmounted(const char *root_path)
{
/* See if this root is already mounted. */
int ret = scan_mounted_volumes();
if (ret < 0)
{
return ret;
}
const MountedVolume *volume;
volume = find_mounted_volume_by_mount_point(root_path);
if (volume == NULL)
{
/* It's not mounted. */
LOGD(TAG "The path %s is unmounted\n", root_path);
return 0;
}
return unmount_mounted_volume(volume);
}
int ensure_path_unmounted(const char* path) {
// This is an old, common method for ensuring a flush
sync();
sync();
if (DataManager_GetIntValue(TW_DONT_UNMOUNT_SYSTEM) == 1 && strncmp(path, "/system", 7) == 0)
return 0;
if ((DataManager_GetIntValue(TW_HAS_DATA_MEDIA) == 1 || DataManager_GetIntValue(TW_HAS_DUAL_STORAGE) == 1) && strncmp(path, "/sdcard", 7) == 0) {
LOGI("Unmounting /sdcard (dual storage path code)\n");
return system("umount /sdcard");;
}
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;
}
return unmount_mounted_volume(mv);
}
int format_root_device(const char *root)
{
/* See if this root is already mounted. */
const MountedVolume *volume;
char *filesystem;
char *device;
int ret = scan_mounted_volumes();
if (ret < 0)
{
LOGD(TAG "format_root_device: load mount info fail\n", root);
return false;
}
volume = find_mounted_volume_by_mount_point(root);
if (volume == NULL)
{
LOGD(TAG "The path %s is unmounted\n", root);
return 0;
}
filesystem = strdup(volume->filesystem);
device = strdup(volume->device);
ret = unmount_mounted_volume(volume);
if (ret < 0)
{
LOGD(TAG "format_root_device: can't unmount \"%s\"\n", root);
return false;
}
LOGD(TAG "format_root_device : unmount %s scucess, type is %s\n", root, filesystem);
if (!strcmp(filesystem, "yaffs2"))
{
LOGD(TAG "format yaffs2 partitions\n", root);
/* Format the device. */
mtd_scan_partitions();
const MtdPartition *partition = NULL;
if(!strcmp(root, DATA_PARTITION))
{
LOGD(TAG "find the partition name is %s", root);
partition = mtd_find_partition_by_name("userdata");
}
if (partition == NULL)
{
LOGD(TAG "format_root_device: can't find mtd partition \"%s\"\n", root);
return false;
}
MtdWriteContext *write = mtd_write_partition(partition);
if (write == NULL)
{
LOGD(TAG "format_root_device: can't open \"%s\"\n", root);
return false;
} else if (mtd_erase_blocks(write, -1) == (off_t) - 1)
{
LOGD(TAG "format_root_device: can't erase \"%s\"\n", root);
mtd_write_close(write);
return false;
} else if (mtd_write_close(write))
{
LOGD(TAG "format_root_device: can't close \"%s\"\n", root);
return false;
} else
{
ret= true;
}
} else
{
if (!strcmp(filesystem, "ubifs"))
{
int ubi_num = -1, ubi_dev;
int mtd_num = -1;
char path[128];
char mtd_dev_name[128];
const char *binary_path = "/system/bin/ubiformat";
sscanf(device, "/dev/ubi%d_0", &ubi_num);
if (ubi_num >= 0 && ubi_num <= 32)
{
LOGD(TAG "format_root_device: detach ubi device /dev/ubi%d_0\n", ubi_num);
} else
{
LOGD(TAG "Can not find parse ubi num :%s\n", device);
return false;
}
sprintf(path, "/sys/class/ubi/ubi%d/mtd_num", ubi_num);
ubi_dev = open(path, O_RDONLY);
if (ubi_dev != -1)
{
ret = read(ubi_dev, path, sizeof(path));
close(ubi_dev);
if (ret > 0)
{
mtd_num = atoi(path);
LOGD(TAG " %s mtd_num is %d \n", device, mtd_num);
sprintf(mtd_dev_name, "/dev/mtd/mtd%d", mtd_num);
} else
{
LOGD(TAG " read %s fail! \n", path);
return false;
}
} else
{
LOGD(TAG " open %s fail! \n", path);
return false;
}
ret = ubi_detach_dev(ubi_num);
if (ret != 0)
{
LOGD(TAG "format_root_device: detach ubi device /dev/ubi%d_0 fail!ret=%d\n", ubi_num, ret);
return false;
}
//int check;
//check = chmod(binary_path, 0777);
//printf("chmod = %d\n", check);
const char **args = (const char **)malloc(sizeof(char *) * 3);
args[0] = binary_path;
args[1] = mtd_dev_name;
args[2] = NULL;
pid_t pid = fork();
if (pid == 0)
{
execv(binary_path, (char *const *)args);
fprintf(stdout, "E:Can't run %s (%s)\n", binary_path, strerror(errno));
_exit(-1);
}
int status;
waitpid(pid, &status, 0);
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
{
LOGE("Error in ubiformat\n(Status %d)\n", WEXITSTATUS(status));
return false;
}
ret=true;
} else
{
LOGD(TAG "format_root_device : unsupport filesystem %s\n", filesystem);
return false;
}
}
free(filesystem);
free(device);
return ret;
}
Value* UpdateFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc != 7) {
return ErrorAbort(state, "%s() expects 7 args, got %d", name, argc);
}
char* type = strrchr(name, '_');
if (type == NULL || *(type+1) == '\0') {
return ErrorAbort(state, "%s() couldn't get type from function name",
name);
}
++type;
Value* image;
Value* width_string;
Value* height_string;
Value* bpp_string;
Value* busy;
Value* fail;
Value* expected_sha1_string;
if (ReadValueArgs(state, argv, 7, &image,
&width_string, &height_string, &bpp_string,
&busy, &fail, &expected_sha1_string) < 0) {
return NULL;
}
// close the package
ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
mzCloseZipArchive(za);
((UpdaterInfo*)(state->cookie))->package_zip = NULL;
// Try to unmount /cache. If we fail (because we're running in an
// older recovery that still has the package file open), try to
// remount it read-only. If that fails, abort.
sync();
scan_mounted_volumes();
MountedVolume* vol = find_mounted_volume_by_mount_point("/cache");
int result = unmount_mounted_volume(vol);
if (result != 0) {
printf("%s(): failed to unmount cache (%d: %s)\n",
name, result, strerror(errno));
result = remount_read_only(vol);
if (result != 0) {
printf("%s(): failed to remount cache (%d: %s)\n",
name, result, strerror(errno));
return StringValue(strdup(""));
} else {
printf("%s(): remounted cache\n", name);
}
sync();
} else {
printf("%s(): unmounted cache\n", name);
}
int width = 0, height = 0, bpp = 0;
if (width_string->type != VAL_STRING ||
(width = strtol(width_string->data, NULL, 10)) == 0) {
printf("%s(): bad width argument", name);
}
if (height_string->type != VAL_STRING ||
(height = strtol(height_string->data, NULL, 10)) == 0) {
printf("%s(): bad height argument", name);
}
if (bpp_string->type != VAL_STRING ||
(bpp = strtol(bpp_string->data, NULL, 10)) == 0) {
printf("%s(): bad bpp argument", name);
}
if (image->type != VAL_BLOB) {
printf("image argument is not blob (is type %d)\n", image->type);
goto done;
}
uint8_t expected_sha1[SHA_DIGEST_SIZE];
char* data = expected_sha1_string->data;
if (expected_sha1_string->type != VAL_STRING ||
strlen(data) != SHA_DIGEST_SIZE*2) {
printf("%s(): bad expected_sha1 argument", name);
goto done;
}
printf("expected sha1 is: ");
int i;
for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
char temp = data[i*2+2];
data[i*2+2] = '\0';
expected_sha1[i] = strtol(data+i*2, NULL, 16);
data[i*2+2] = temp;
printf("%02x", expected_sha1[i]);
}
printf("\n");
install_firmware_update(
type,
image->data,
image->size,
width, height, bpp,
busy->size > 0 ? busy->data : NULL,
fail->size > 0 ? fail->data : NULL,
"/tmp/recovery.log",
expected_sha1);
printf("%s: install_firmware_update returned!\n", name);
done:
FreeValue(image);
FreeValue(width_string);
FreeValue(height_string);
FreeValue(bpp_string);
FreeValue(busy);
FreeValue(fail);
// install_firmware_update should reboot. If it returns, it failed.
return StringValue(strdup(""));
}
