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nandroid_cn.c
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nandroid_cn.c
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#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <limits.h>
#include <linux/input.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/reboot.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/limits.h>
#include <dirent.h>
#include <sys/stat.h>
#include <signal.h>
#include <sys/wait.h>
#include "libcrecovery/common.h"
#include "bootloader.h"
#include "common.h"
#include "cutils/properties.h"
#include "firmware.h"
#include "install.h"
#include "minui/minui.h"
#include "minzip/DirUtil.h"
#include "roots.h"
#include "recovery_ui.h"
#include <sys/vfs.h>
#include "extendedcommands.h"
#include "nandroid.h"
#include "mounts.h"
#include "flashutils/flashutils.h"
#include <libgen.h>
#ifdef NEED_SELINUX_FIX
#include <selinux/selinux.h>
#include <selinux/label.h>
#include <selinux/android.h>
#endif
void nandroid_generate_timestamp_path(char* backup_path)
{
time_t t = time(NULL);
struct tm *tmp = localtime(&t);
if (tmp == NULL)
{
struct timeval tp;
gettimeofday(&tp, NULL);
sprintf(backup_path, "/sdcard/clockworkmod/backup/%ld", tp.tv_sec);
}
else
{
strftime(backup_path, PATH_MAX, "/sdcard/clockworkmod/backup/%F.%H.%M.%S", tmp);
}
}
static void ensure_directory(const char* dir) {
char tmp[PATH_MAX];
sprintf(tmp, "mkdir -p %s ; chmod 777 %s", dir, dir);
__system(tmp);
}
static int print_and_error(const char* message) {
ui_print("%s\n", message);
return 1;
}
static int nandroid_backup_bitfield = 0;
#define NANDROID_FIELD_DEDUPE_CLEARED_SPACE 1
static int nandroid_files_total = 0;
static int nandroid_files_count = 0;
static void nandroid_callback(const char* filename)
{
if (filename == NULL)
return;
const char* justfile = basename(filename);
char tmp[PATH_MAX];
strcpy(tmp, justfile);
if (tmp[strlen(tmp) - 1] == '\n')
tmp[strlen(tmp) - 1] = '\0';
tmp[ui_get_text_cols() - 1] = '\0';
nandroid_files_count++;
ui_increment_frame();
ui_nice_print("%s\n", tmp);
if (!ui_was_niced() && nandroid_files_total != 0)
ui_set_progress((float)nandroid_files_count / (float)nandroid_files_total);
if (!ui_was_niced())
ui_delete_line();
}
static void compute_directory_stats(const char* directory)
{
char tmp[PATH_MAX];
sprintf(tmp, "find %s | %s wc -l > /tmp/dircount", directory, strcmp(directory, "/data") == 0 && is_data_media() ? "grep -v /data/media |" : "");
__system(tmp);
char count_text[100];
FILE* f = fopen("/tmp/dircount", "r");
fread(count_text, 1, sizeof(count_text), f);
fclose(f);
nandroid_files_count = 0;
nandroid_files_total = atoi(count_text);
ui_reset_progress();
ui_show_progress(1, 0);
}
typedef void (*file_event_callback)(const char* filename);
typedef int (*nandroid_backup_handler)(const char* backup_path, const char* backup_file_image, int callback);
static int mkyaffs2image_wrapper(const char* backup_path, const char* backup_file_image, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd %s ; mkyaffs2image . %s.img ; exit $?", backup_path, backup_file_image);
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("Unable to execute mkyaffs2image.\n");
return -1;
}
while (fgets(tmp, PATH_MAX, fp) != NULL) {
tmp[PATH_MAX - 1] = '\0';
if (callback)
nandroid_callback(tmp);
}
return __pclose(fp);
}
static int do_tar_compress(char* command, int callback) {
char buf[PATH_MAX];
FILE *fp = __popen(command, "r");
if (fp == NULL) {
ui_print("Unable to execute tar command!\n");
return -1;
}
while (fgets(buf, PATH_MAX, fp) != NULL) {
buf[PATH_MAX - 1] = '\0';
if (callback)
nandroid_callback(buf);
}
return __pclose(fp);
}
static int tar_compress_wrapper(const char* backup_path, const char* backup_file_image, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; touch %s.tar ; (tar cv --exclude=data/data/com.google.android.music/files/* %s $(basename %s) | split -a 1 -b 1000000000 /proc/self/fd/0 %s.tar.) 2> /proc/self/fd/1 ; exit $?", backup_path, backup_file_image, strcmp(backup_path, "/data") == 0 && is_data_media() ? "--exclude 'media'" : "", backup_path, backup_file_image);
return do_tar_compress(tmp, callback);
}
static int tar_gzip_compress_wrapper(const char* backup_path, const char* backup_file_image, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; touch %s.tar.gz ; (tar cv --exclude=data/data/com.google.android.music/files/* %s $(basename %s) | pigz -c | split -a 1 -b 1000000000 /proc/self/fd/0 %s.tar.gz.) 2> /proc/self/fd/1 ; exit $?", backup_path, backup_file_image, strcmp(backup_path, "/data") == 0 && is_data_media() ? "--exclude 'media'" : "", backup_path, backup_file_image);
return do_tar_compress(tmp, callback);
}
static int tar_dump_wrapper(const char* backup_path, const char* backup_file_image, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s); tar cv --exclude=data/data/com.google.android.music/files/* %s $(basename %s) 2> /dev/null | cat", backup_path, strcmp(backup_path, "/data") == 0 && is_data_media() ? "--exclude 'media'" : "", backup_path);
return __system(tmp);
}
void nandroid_dedupe_gc(const char* blob_dir) {
char backup_dir[PATH_MAX];
strcpy(backup_dir, blob_dir);
char *d = dirname(backup_dir);
strcpy(backup_dir, d);
strcat(backup_dir, "/backup");
ui_print("Freeing space...\n");
char tmp[PATH_MAX];
sprintf(tmp, "dedupe gc %s $(find %s -name '*.dup')", blob_dir, backup_dir);
__system(tmp);
ui_print("Done freeing space.\n");
}
static int dedupe_compress_wrapper(const char* backup_path, const char* backup_file_image, int callback) {
char tmp[PATH_MAX];
char blob_dir[PATH_MAX];
strcpy(blob_dir, backup_file_image);
char *d = dirname(blob_dir);
strcpy(blob_dir, d);
d = dirname(blob_dir);
strcpy(blob_dir, d);
d = dirname(blob_dir);
strcpy(blob_dir, d);
strcat(blob_dir, "/blobs");
ensure_directory(blob_dir);
if (!(nandroid_backup_bitfield & NANDROID_FIELD_DEDUPE_CLEARED_SPACE)) {
nandroid_backup_bitfield |= NANDROID_FIELD_DEDUPE_CLEARED_SPACE;
nandroid_dedupe_gc(blob_dir);
}
sprintf(tmp, "dedupe c %s %s %s.dup %s", backup_path, blob_dir, backup_file_image, strcmp(backup_path, "/data") == 0 && is_data_media() ? "./media" : "");
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("Unable to execute dedupe.\n");
return -1;
}
while (fgets(tmp, PATH_MAX, fp) != NULL) {
tmp[PATH_MAX - 1] = '\0';
if (callback)
nandroid_callback(tmp);
}
return __pclose(fp);
}
static nandroid_backup_handler default_backup_handler = tar_compress_wrapper;
static char forced_backup_format[5] = "";
void nandroid_force_backup_format(const char* fmt) {
strcpy(forced_backup_format, fmt);
}
static void refresh_default_backup_handler() {
char fmt[5];
if (strlen(forced_backup_format) > 0) {
strcpy(fmt, forced_backup_format);
}
else {
ensure_path_mounted(get_primary_storage_path());
FILE* f = fopen(NANDROID_BACKUP_FORMAT_FILE, "r");
if (NULL == f) {
default_backup_handler = tar_compress_wrapper;
return;
}
fread(fmt, 1, sizeof(fmt), f);
fclose(f);
}
fmt[3] = '\0';
if (0 == strcmp(fmt, "dup"))
default_backup_handler = dedupe_compress_wrapper;
else if (0 == strcmp(fmt, "tgz"))
default_backup_handler = tar_gzip_compress_wrapper;
else if (0 == strcmp(fmt, "tar"))
default_backup_handler = tar_compress_wrapper;
else
default_backup_handler = tar_compress_wrapper;
}
unsigned nandroid_get_default_backup_format() {
refresh_default_backup_handler();
if (default_backup_handler == dedupe_compress_wrapper) {
return NANDROID_BACKUP_FORMAT_DUP;
} else if (default_backup_handler == tar_gzip_compress_wrapper) {
return NANDROID_BACKUP_FORMAT_TGZ;
} else {
return NANDROID_BACKUP_FORMAT_TAR;
}
}
static nandroid_backup_handler get_backup_handler(const char *backup_path) {
Volume *v = volume_for_path(backup_path);
if (v == NULL) {
ui_print("Unable to find volume.\n");
return NULL;
}
const MountedVolume *mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
ui_print("Unable to find mounted volume: %s\n", v->mount_point);
return NULL;
}
if (strcmp(backup_path, "/data") == 0 && is_data_media()) {
return default_backup_handler;
}
if (strlen(forced_backup_format) > 0)
return default_backup_handler;
// cwr5, we prefer dedupe for everything except yaffs2
if (strcmp("yaffs2", mv->filesystem) == 0) {
return mkyaffs2image_wrapper;
}
return default_backup_handler;
}
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;
int callback = stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info) != 0;
ui_print("正在备份%s...\n", name);
if (0 != (ret = ensure_path_mounted(mount_point) != 0)) {
ui_print("不能挂载%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);
#ifdef NEED_SELINUX_FIX
if (0 != ret || strcmp(backup_path, "-") == 0) {
LOGI("跳过selinux context备份!\n");
}
else if (0 == strcmp(mount_point, "/data") ||
0 == strcmp(mount_point, "/system") ||
0 == strcmp(mount_point, "/cache"))
{
ui_print("备份selinux context...\n");
sprintf(tmp, "%s/%s.context", backup_path, name);
if (bakupcon_to_file(mount_point, tmp) < 0)
LOGE("备份selinux context出错!\n");
else
ui_print("备份selinux context完毕.\n");
}
#endif
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
if (0 != ret) {
ui_print("备份%s时出错!\n", mount_point);
return ret;
}
ui_print("备份%s完毕.\n", name);
return 0;
}
int nandroid_backup_partition(const char* backup_path, const char* root) {
Volume *vol = volume_for_path(root);
// make sure the volume exists before attempting anything...
if (vol == NULL || vol->fs_type == NULL)
return 0;
// see if we need a raw backup (mtd)
char tmp[PATH_MAX];
int ret;
if (strcmp(vol->fs_type, "mtd") == 0 ||
strcmp(vol->fs_type, "bml") == 0 ||
strcmp(vol->fs_type, "emmc") == 0) {
const char* name = basename(root);
if (strcmp(backup_path, "-") == 0)
strcpy(tmp, "/proc/self/fd/1");
else
sprintf(tmp, "%s/%s.img", backup_path, name);
ui_print("正在备份%s镜像...\n", name);
if (0 != (ret = backup_raw_partition(vol->fs_type, vol->blk_device, tmp))) {
ui_print("备份%s镜像时出错!", name);
return ret;
}
ui_print("备份%s镜像完毕.\n", name);
return 0;
}
return nandroid_backup_partition_extended(backup_path, root, 1);
}
int nandroid_backup(const char* backup_path)
{
nandroid_backup_bitfield = 0;
ui_set_background(BACKGROUND_ICON_INSTALLING);
refresh_default_backup_handler();
if (ensure_path_mounted(backup_path) != 0) {
return print_and_error("Can't mount backup path.\n");
}
Volume* volume;
if (is_data_media_volume_path(backup_path))
volume = volume_for_path("/data");
else
volume = volume_for_path(backup_path);
if (NULL == volume)
return print_and_error("Unable to find volume for backup path.\n");
int ret;
struct statfs sfs;
struct stat s;
if (NULL != volume) {
if (0 != (ret = statfs(volume->mount_point, &sfs)))
return print_and_error("Unable to stat backup path.\n");
uint64_t bavail = sfs.f_bavail;
uint64_t bsize = sfs.f_bsize;
uint64_t sdcard_free = bavail * bsize;
uint64_t sdcard_free_mb = sdcard_free / (uint64_t)(1024 * 1024);
ui_print("SD Card space free: %lluMB\n", sdcard_free_mb);
if (sdcard_free_mb < 150)
ui_print("There may not be enough free space to complete backup... continuing...\n");
}
char tmp[PATH_MAX];
ensure_directory(backup_path);
if (0 != (ret = nandroid_backup_partition(backup_path, "/boot")))
return ret;
if (0 != (ret = nandroid_backup_partition(backup_path, "/recovery")))
return ret;
Volume *vol = volume_for_path("/wimax");
if (vol != NULL && 0 == stat(vol->blk_device, &s))
{
char serialno[PROPERTY_VALUE_MAX];
ui_print("正在备份WiMAX...\n");
serialno[0] = 0;
property_get("ro.serialno", serialno, "");
sprintf(tmp, "%s/wimax.%s.img", backup_path, serialno);
ret = backup_raw_partition(vol->fs_type, vol->blk_device, tmp);
if (0 != ret)
return print_and_error("Error while dumping WiMAX image!\n");
}
if (0 != (ret = nandroid_backup_partition(backup_path, "/system")))
return ret;
if (volume_for_path("/preload") != NULL)
{
if (0 != (ret = nandroid_backup_partition(backup_path, "/preload")))
return ret;
}
if (0 != (ret = nandroid_backup_partition(backup_path, "/data")))
return ret;
if (has_datadata()) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/datadata")))
return ret;
}
if (0 != stat(get_android_secure_path(), &s)) {
ui_print("没发现.android_secure目录. 跳过备份安装到扩展卡上的程序.\n");
}
else {
if (0 != (ret = nandroid_backup_partition_extended(backup_path, get_android_secure_path(), 0)))
return ret;
}
if (0 != (ret = nandroid_backup_partition_extended(backup_path, "/cache", 0)))
return ret;
vol = volume_for_path("/sd-ext");
if (vol == NULL || 0 != stat(vol->blk_device, &s))
{
LOGI("没有sd-ext分区. 跳过.\n");
}
else
{
if (0 != ensure_path_mounted("/sd-ext"))
LOGI("Could not mount sd-ext. sd-ext backup may not be supported on this device. Skipping backup of sd-ext.\n");
else if (0 != (ret = nandroid_backup_partition(backup_path, "/sd-ext")))
return ret;
}
ui_print("创建md5校验文件...\n");
sprintf(tmp, "nandroid-md5.sh %s", backup_path);
if (0 != (ret = __system(tmp))) {
ui_print("创建md5校验文件出错!\n");
return ret;
}
sprintf(tmp, "cp /tmp/recovery.log %s/recovery.log", backup_path);
__system(tmp);
sprintf(tmp, "chmod -R 777 %s ; chmod -R u+r,u+w,g+r,g+w,o+r,o+w /sdcard/clockworkmod ; chmod u+x,g+x,o+x /sdcard/clockworkmod/backup ; chmod u+x,g+x,o+x /sdcard/clockworkmod/blobs", backup_path);
__system(tmp);
sync();
ui_set_background(BACKGROUND_ICON_NONE);
ui_reset_progress();
ui_print("\n备份完毕!\n");
return 0;
}
int nandroid_dump(const char* partition) {
// silence our ui_print statements and other logging
ui_set_log_stdout(0);
nandroid_backup_bitfield = 0;
refresh_default_backup_handler();
// override our default to be the basic tar dumper
default_backup_handler = tar_dump_wrapper;
if (strcmp(partition, "boot") == 0) {
return __system("dump_image boot /proc/self/fd/1 | cat");
}
if (strcmp(partition, "recovery") == 0) {
return __system("dump_image recovery /proc/self/fd/1 | cat");
}
if (strcmp(partition, "data") == 0) {
return nandroid_backup_partition("-", "/data");
}
if (strcmp(partition, "system") == 0) {
return nandroid_backup_partition("-", "/system");
}
return 1;
}
typedef int (*nandroid_restore_handler)(const char* backup_file_image, const char* backup_path, int callback);
static int unyaffs_wrapper(const char* backup_file_image, const char* backup_path, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd %s ; unyaffs %s ; exit $?", backup_path, backup_file_image);
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("不能正确执行unyaffs命令.\n");
return -1;
}
while (fgets(tmp, PATH_MAX, fp) != NULL) {
tmp[PATH_MAX - 1] = '\0';
if (callback)
nandroid_callback(tmp);
}
return __pclose(fp);
}
static int do_tar_extract(char* command, int callback) {
char buf[PATH_MAX];
FILE *fp = __popen(command, "r");
if (fp == NULL) {
ui_print("不能正确执行tar命令.\n");
return -1;
}
while (fgets(buf, PATH_MAX, fp) != NULL) {
buf[PATH_MAX - 1] = '\0';
if (callback)
nandroid_callback(buf);
}
return __pclose(fp);
}
static int tar_gzip_extract_wrapper(const char* backup_file_image, const char* backup_path, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; cat %s* | pigz -d -c | tar xv ; exit $?", backup_path, backup_file_image);
return do_tar_extract(tmp, callback);
}
static int tar_extract_wrapper(const char* backup_file_image, const char* backup_path, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; cat %s* | tar xv ; exit $?", backup_path, backup_file_image);
return do_tar_extract(tmp, callback);
}
static int dedupe_extract_wrapper(const char* backup_file_image, const char* backup_path, int callback) {
char tmp[PATH_MAX];
char blob_dir[PATH_MAX];
strcpy(blob_dir, backup_file_image);
char *bd = dirname(blob_dir);
strcpy(blob_dir, bd);
bd = dirname(blob_dir);
strcpy(blob_dir, bd);
bd = dirname(blob_dir);
sprintf(tmp, "dedupe x %s %s/blobs %s; exit $?", backup_file_image, bd, backup_path);
char path[PATH_MAX];
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("不能正确执行dedupe命令.\n");
return -1;
}
while (fgets(path, PATH_MAX, fp) != NULL) {
if (callback)
nandroid_callback(path);
}
return __pclose(fp);
}
static int tar_undump_wrapper(const char* backup_file_image, const char* backup_path, int callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; tar xv ", backup_path);
return __system(tmp);
}
static nandroid_restore_handler get_restore_handler(const char *backup_path) {
Volume *v = volume_for_path(backup_path);
if (v == NULL) {
ui_print("无法定位备份卷.\n");
return NULL;
}
scan_mounted_volumes();
const MountedVolume *mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
ui_print("无法找到已经挂载的: %s\n", v->mount_point);
return NULL;
}
if (strcmp(backup_path, "/data") == 0 && is_data_media()) {
return tar_extract_wrapper;
}
// cwr 5, we prefer tar for everything unless it is yaffs2
char str[255];
char* partition;
property_get("ro.cwm.prefer_tar", str, "false");
if (strcmp("true", str) != 0) {
return unyaffs_wrapper;
}
if (strcmp("yaffs2", mv->filesystem) == 0) {
return unyaffs_wrapper;
}
return tar_extract_wrapper;
}
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);
nandroid_restore_handler restore_handler = NULL;
const char *filesystems[] = { "yaffs2", "ext2", "ext3", "ext4", "vfat", "rfs", "f2fs", "exfat", NULL };
const char* backup_filesystem = NULL;
Volume *vol = volume_for_path(mount_point);
const char *device = NULL;
if (vol != NULL)
device = vol->blk_device;
char tmp[PATH_MAX];
sprintf(tmp, "%s/%s.img", backup_path, name);
struct stat file_info;
if (strcmp(backup_path, "-") == 0) {
if (vol)
backup_filesystem = vol->fs_type;
restore_handler = tar_extract_wrapper;
strcpy(tmp, "/proc/self/fd/0");
}
else if (0 != (ret = stat(tmp, &file_info))) {
// can't find the backup, it may be the new backup format?
// iterate through the backup types
//printf("couldn't find default\n");
const char *filesystem;
int i = 0;
while ((filesystem = filesystems[i]) != NULL) {
sprintf(tmp, "%s/%s.%s.img", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
restore_handler = unyaffs_wrapper;
break;
}
sprintf(tmp, "%s/%s.%s.tar", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
restore_handler = tar_extract_wrapper;
break;
}
sprintf(tmp, "%s/%s.%s.tar.gz", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
restore_handler = tar_gzip_extract_wrapper;
break;
}
sprintf(tmp, "%s/%s.%s.dup", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
restore_handler = dedupe_extract_wrapper;
break;
}
i++;
}
if (backup_filesystem == NULL || restore_handler == NULL) {
ui_print("找不到%s文件. 跳过还原%s.\n", name, mount_point);
return 0;
}
else {
printf("Found new backup image: %s\n", tmp);
}
}
// If the fs_type of this volume is "auto" or mount_point is /data
// and is_data_media, let's revert
// to using a rm -rf, rather than trying to do a
// ext3/ext4/whatever format.
// This is because some phones (like DroidX) will freak out if you
// reformat the /system or /data partitions, and not boot due to
// a locked bootloader.
// Other devices, like the Galaxy Nexus, XOOM, and Galaxy Tab 10.1
// have a /sdcard symlinked to /data/media.
// Or of volume does not exist (.android_secure), just rm -rf.
if (vol == NULL || 0 == strcmp(vol->fs_type, "auto"))
backup_filesystem = NULL;
if (0 == strcmp(vol->mount_point, "/data") && is_data_media())
backup_filesystem = NULL;
ensure_directory(mount_point);
int callback = stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info) != 0;
ui_print("正在还原 %s...\n", name);
if (backup_filesystem == NULL) {
if (0 != (ret = format_volume(mount_point))) {
ui_print("格式化%s时出错!\n", mount_point);
return ret;
}
}
else if (0 != (ret = format_device(device, mount_point, backup_filesystem))) {
ui_print("格式化%s时出错!\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 (restore_handler == NULL)
restore_handler = get_restore_handler(mount_point);
// override restore handler for undump
if (strcmp(backup_path, "-") == 0) {
restore_handler = tar_undump_wrapper;
}
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("还原%s时出错!\n", mount_point);
return ret;
}
#ifdef NEED_SELINUX_FIX
if (strcmp(backup_path, "-") == 0) {
LOGE("不能在undump模式恢复selinux context.\n");
}
else if (0 == strcmp(mount_point, "/data") ||
0 == strcmp(mount_point, "/system") ||
0 == strcmp(mount_point, "/cache"))
{
ui_print("恢复selinux context...\n");
name = basename(mount_point);
sprintf(tmp, "%s/%s.context", backup_path, name);
if ((ret = restorecon_from_file(tmp)) < 0) {
ui_print("从%s.context恢复出错,使用常规restorecon.\n", name);
if ((ret = restorecon_recursive(mount_point, "/data/media/")) < 0) {
LOGE("Restorecon %s 出错!\n", mount_point);
return ret;
}
}
ui_print("selinux context恢复完毕.\n");
}
#endif
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
return 0;
}
int nandroid_restore_partition(const char* backup_path, const char* root) {
Volume *vol = volume_for_path(root);
// make sure the volume exists...
if (vol == NULL || vol->fs_type == NULL)
return 0;
// see if we need a raw restore (mtd)
char tmp[PATH_MAX];
if (strcmp(vol->fs_type, "mtd") == 0 ||
strcmp(vol->fs_type, "bml") == 0 ||
strcmp(vol->fs_type, "emmc") == 0) {
int ret;
const char* name = basename(root);
ui_print("还原备份之前清除%s数据...\n", name);
if (0 != (ret = format_volume(root))) {
ui_print("清除%s数据时出错!", name);
return ret;
}
if (strcmp(backup_path, "-") == 0)
strcpy(tmp, backup_path);
else
sprintf(tmp, "%s%s.img", backup_path, root);
ui_print("还原%s镜像...\n", name);
if (0 != (ret = restore_raw_partition(vol->fs_type, vol->blk_device, tmp))) {
ui_print("刷入%s镜像时出错!\n", name);
return ret;
}
return 0;
}
return nandroid_restore_partition_extended(backup_path, root, 1);
}
int nandroid_restore(const char* backup_path, int restore_boot, int restore_system, int restore_data, int restore_cache, int restore_sdext, int restore_wimax)
{
ui_set_background(BACKGROUND_ICON_INSTALLING);
ui_show_indeterminate_progress();
nandroid_files_total = 0;
if (ensure_path_mounted(backup_path) != 0)
return print_and_error("Can't mount backup path\n");
struct stat s;
char tmp[PATH_MAX];
ensure_path_mounted("/sdcard");
if (0 == stat("/sdcard/clockworkmod/.no_md5sum", &s))
ui_print("跳过文件MD5检验...\n");
else {
ui_print("检验文件md5值...\n");
sprintf(tmp, "cd %s && md5sum -c nandroid.md5", backup_path);
if (0 != __system(tmp))
return print_and_error("MD5校验失败!\n");
}
int ret;
if (restore_boot && NULL != volume_for_path("/boot") && 0 != (ret = nandroid_restore_partition(backup_path, "/boot")))
return ret;
Volume *vol = volume_for_path("/wimax");
if (restore_wimax && vol != NULL && 0 == stat(vol->blk_device, &s))
{
char serialno[PROPERTY_VALUE_MAX];
serialno[0] = 0;
property_get("ro.serialno", serialno, "");
sprintf(tmp, "%s/wimax.%s.img", backup_path, serialno);
struct stat st;
if (0 != stat(tmp, &st))
{
ui_print("WARNING: WiMAX partition exists, but nandroid\n");
ui_print(" backup does not contain WiMAX image.\n");
ui_print(" You should create a new backup to\n");
ui_print(" protect your WiMAX keys.\n");
}
else
{
ui_print("Erasing WiMAX before restore...\n");
if (0 != (ret = format_volume("/wimax")))
return print_and_error("Error while formatting wimax!\n");
ui_print("Restoring WiMAX image...\n");
if (0 != (ret = restore_raw_partition(vol->fs_type, vol->blk_device, tmp)))
return ret;
}
}
if (restore_system && 0 != (ret = nandroid_restore_partition(backup_path, "/system")))
return ret;
if (volume_for_path("/preload") != NULL)
{
if (restore_system && 0 != (ret = nandroid_restore_partition(backup_path, "/preload")))
return ret;
}
if (restore_data && 0 != (ret = nandroid_restore_partition(backup_path, "/data")))
return ret;
if (has_datadata()) {
if (restore_data && 0 != (ret = nandroid_restore_partition(backup_path, "/datadata")))
return ret;
}
if (restore_data && 0 != (ret = nandroid_restore_partition_extended(backup_path, get_android_secure_path(), 0)))
return ret;
if (restore_cache && 0 != (ret = nandroid_restore_partition_extended(backup_path, "/cache", 0)))
return ret;
if (restore_sdext && 0 != (ret = nandroid_restore_partition(backup_path, "/sd-ext")))
return ret;
sync();
ui_set_background(BACKGROUND_ICON_NONE);
ui_reset_progress();
ui_print("\n还原完毕!\n");
return 0;
}
int nandroid_undump(const char* partition) {
nandroid_files_total = 0;
int ret;
if (strcmp(partition, "boot") == 0) {
return __system("flash_image boot /proc/self/fd/0");
}
if (strcmp(partition, "recovery") == 0) {
if(0 != (ret = nandroid_restore_partition("-", "/recovery")))
return ret;
}
if (strcmp(partition, "system") == 0) {
if(0 != (ret = nandroid_restore_partition("-", "/system")))
return ret;
}
if (strcmp(partition, "data") == 0) {
if(0 != (ret = nandroid_restore_partition("-", "/data")))
return ret;
}
sync();
return 0;
}
int nandroid_usage()
{
printf("Usage: nandroid backup\n");
printf("Usage: nandroid restore <directory>\n");
printf("Usage: nandroid dump <partition>\n");
printf("Usage: nandroid undump <partition>\n");
return 1;
}
static int bu_usage() {
printf("Usage: bu <fd> backup partition\n");
printf("Usage: Prior to restore:\n");
printf("Usage: echo -n <partition> > /tmp/ro.bu.restore\n");
printf("Usage: bu <fd> restore\n");
return 1;
}
int bu_main(int argc, char** argv) {
load_volume_table();
if (strcmp(argv[2], "backup") == 0) {
if (argc != 4) {
return bu_usage();
}
int fd = atoi(argv[1]);
char* partition = argv[3];
if (fd != STDOUT_FILENO) {
dup2(fd, STDOUT_FILENO);
close(fd);
}
// fprintf(stderr, "%d %d %s\n", fd, STDOUT_FILENO, argv[3]);
int ret = nandroid_dump(partition);
sleep(10);
return ret;
}
else if (strcmp(argv[2], "restore") == 0) {
if (argc != 3) {
return bu_usage();
}
int fd = atoi(argv[1]);
if (fd != STDIN_FILENO) {
dup2(fd, STDIN_FILENO);
close(fd);
}
char partition[100];
FILE* f = fopen("/tmp/ro.bu.restore", "r");
fread(partition, 1, sizeof(partition), f);
fclose(f);
// fprintf(stderr, "%d %d %s\n", fd, STDIN_FILENO, argv[3]);
return nandroid_undump(partition);
}
return bu_usage();
}
int nandroid_main(int argc, char** argv)
{
load_volume_table();