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nandroid.c
1397 lines (1191 loc) · 49.9 KB
/
nandroid.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 <libgen.h>
#include <sys/vfs.h>
#include "libcrecovery/common.h"
#include "flashutils/flashutils.h" // backup_raw_partition() and restore_raw_partition()
#include "common.h"
#include "cutils/properties.h"
#include "install.h"
#include "minui/minui.h"
#include "minzip/DirUtil.h"
#include "roots.h"
#include "recovery_ui.h"
#include "cutils/android_reboot.h"
#include "extendedcommands.h"
#include "advanced_functions.h"
#include "recovery_settings.h"
#include "nandroid.h"
#include "mtdutils/mounts.h"
#ifdef PHILZ_TOUCH_RECOVERY
#include "libtouch_gui/nandroid_gui.h"
#include "libtouch_gui/gui_settings.h"
#endif
// time in msec when nandroid job starts: used for dim timeout and total backup time
static long long nandroid_start_msec = 0;
// last time we updated size progress during backup job
static long long last_size_update = 0;
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);
snprintf(backup_path, PATH_MAX, "%s/clockworkmod/backup/%ld", get_primary_storage_path(), tp.tv_sec);
} else {
char str[PATH_MAX];
strftime(str, PATH_MAX, "clockworkmod/backup/%F.%H.%M.%S", tmp);
snprintf(backup_path, PATH_MAX, "%s/%s", get_primary_storage_path(), str);
}
}
int print_and_error(const char* message, int ret) {
ui_reset_progress();
ui_set_background(BACKGROUND_ICON_ERROR);
if (message != NULL)
LOGE("%s", message); // Assumes message has line termination
return ret;
}
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 int nandroid_stdout_progress = 0;
static void nandroid_callback(const char* filename) {
if (filename == NULL)
return;
char tmp[PATH_MAX];
strcpy(tmp, filename);
if (tmp[strlen(tmp) - 1] == '\n')
tmp[strlen(tmp) - 1] = '\0';
nandroid_files_count++;
if (!ui_is_initialized()) {
if (strlen(tmp) == 0)
return;
if (nandroid_files_total != 0) {
fprintf(stdout, "Progress: %.2f\r", ((float)nandroid_files_count / (float)nandroid_files_total) * 100);
} else {
if (nandroid_stdout_progress == 0)
is_time_interval_passed(0);
if (nandroid_stdout_progress == 0 || nandroid_stdout_progress > 20) {
fprintf(stdout, "\rRestoring: > \b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
nandroid_stdout_progress = 1;
} else if (is_time_interval_passed(100)) {
fprintf(stdout, ">");
nandroid_stdout_progress += 1;
}
}
fflush(stdout);
return;
}
// check if we should disable writing file names to log (speeds up backup/restore on some devices)
if (!use_nandroid_simple_logging.value && strlen(tmp) != 0)
LOGI("%s\n", tmp);
static char size_progress[256] = "Size progress: N/A";
if (show_nandroid_size_progress.value && Backup_Size != 0) {
// Backup_Size == 0 if if we couldn't stat backup size
sprintf(size_progress, "Done %llu/%lluMb - Free %lluMb",
(Used_Size - Before_Used_Size) / 1048576LLU, Backup_Size / 1048576LLU, Free_Size / 1048576LLU);
}
size_progress[ui_get_text_cols() - 1] = '\0';
// write size progress and file names to screen but not to log file
char name[PATH_MAX];
sprintf(name, "%s", BaseName(tmp));
name[ui_get_text_cols() - 1] = '\0';
ui_set_log_stdout(0);
ui_set_nandroid_print(1, 2);
ui_print("%s\n%s\n", name, size_progress);
ui_set_log_stdout(1);
ui_set_nandroid_print(0, 0);
// update progress thread
if (nandroid_files_total != 0)
ui_set_progress((float)nandroid_files_count / (float)nandroid_files_total);
}
static void compute_directory_stats(const char* directory) {
char tmp[PATH_MAX];
char count_text[100];
// reset file count if we ever return before setting it
nandroid_files_count = 0;
nandroid_files_total = 0;
sprintf(tmp, "find %s | %s wc -l > /tmp/dircount", directory, strcmp(directory, "/data") == 0 && is_data_media() ? "grep -v /data/media |" : "");
__system(tmp);
FILE* f = fopen("/tmp/dircount", "r");
if (f == NULL)
return;
if (fgets(count_text, sizeof(count_text), f) == NULL) {
fclose(f);
return;
}
size_t len = strlen(count_text);
if (count_text[len - 1] == '\n')
count_text[len - 1] = '\0';
fclose(f);
nandroid_files_total = atoi(count_text);
// in twrp backup mode, do not refresh this or it will be a flashy effect on compute_twrp_backup_stats() call
if (!twrp_backup_mode.value) {
ui_reset_progress();
ui_show_progress(1, 0);
}
}
// size progress update during backup jobs
static void update_size_progress(const char* Path) {
if (!show_nandroid_size_progress.value || Backup_Size == 0)
return;
// statfs every 5 sec interval maximum (some sdcards and phones cannot support previous 0.5 sec)
if (last_size_update == 0 || (timenow_msec() - last_size_update) > 5000) {
Get_Size_Via_statfs(Path);
last_size_update = timenow_msec();
}
}
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;
}
int nand_starts = 1;
last_size_update = 0;
while (fgets(tmp, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, backup_file_image, 1, &nand_starts))
return -1;
#endif
tmp[PATH_MAX - 1] = '\0';
if (callback) {
update_size_progress(backup_file_image);
nandroid_callback(tmp);
}
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
return __pclose(fp);
}
static int do_tar_compress(char* command, int callback, const char* backup_file_image) {
char buf[PATH_MAX];
set_perf_mode(1);
FILE *fp = __popen(command, "r");
if (fp == NULL) {
ui_print("Unable to execute tar command!\n");
set_perf_mode(0);
return -1;
}
int nand_starts = 1; // to run only once some user_cancel_nandroid() statements
last_size_update = 0;
while (fgets(buf, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, backup_file_image, 1, &nand_starts)) {
set_perf_mode(0);
return -1;
}
#endif
buf[PATH_MAX - 1] = '\0';
if (callback) {
update_size_progress(backup_file_image);
nandroid_callback(buf);
}
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
set_perf_mode(0);
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 ; set -o pipefail ; (tar -cpv --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=data/media" : "", backup_path, backup_file_image);
return do_tar_compress(tmp, callback, backup_file_image);
}
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 ; set -o pipefail ; (tar -cpv --exclude=data/data/com.google.android.music/files/* %s $(basename %s) | pigz -c -%d | 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=data/media" : "", backup_path, compression_value.value, backup_file_image);
return do_tar_compress(tmp, callback, backup_file_image);
}
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); set -o pipefail ; tar -cpv --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=data/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, 0755);
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;
}
int nand_starts = 1; // to run only once some user_cancel_nandroid() statements
last_size_update = 0;
while (fgets(tmp, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, backup_file_image, 1, &nand_starts))
return -1;
#endif
tmp[PATH_MAX - 1] = '\0';
if (callback) {
update_size_progress(backup_file_image);
nandroid_callback(tmp);
}
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
return __pclose(fp);
}
static nandroid_backup_handler default_backup_handler = tar_compress_wrapper;
static char forced_backup_format[5] = "";
// this function will force the backup handler to be tar, whatever filesystem be it ext4 or yaffs2
// we now disabled forcing to tar if it is yaffs2
// nandroid_force_backup_format() is used for ors backup coupled to set_override_yaffs2_wrapper(0) to avoid forcing yaffs2 in tar format
// * in cwm mode: yaffs2 is not broken
// * in twrp mode: in all cases, we do not use get_backup_handler() and yaffs2 is always backed up as tar like in original TWRP
// to force tar backup: nandroid_force_backup_format("tar");
// after the backup, reset default backup handler: nandroid_force_backup_format("");
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 {
char path[PATH_MAX];
sprintf(path, "%s/%s", get_primary_storage_path(), NANDROID_BACKUP_FORMAT_FILE);
ensure_path_mounted(path);
FILE* f = fopen(path, "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
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;
}
}
// force yaffs2 to be backed up with default_backup_handler (tar, tar.gz, dup)
// used for make update.zip from ROM so that we can force it to tar format even on yaffs2 partitions (default behaviour)
// while in ors backup mode, we can force backup ext4 partitions in tar format while keeping yaffs2 partitions default behaviour (backed up in .img)
// this is done by calling set_override_yaffs2_wrapper(0)
// in twrp mode, yaffs2 is always backed up in tar through nandroid_backup_partition_extended() like in TWRP. We do not need nandroid_force_backup_format()
// we can this way freely use nandroid_force_backup_format() without breaking yaffs2 support when needed
// To sum it:
// * calling nandroid_force_backup_format("tar") will force tar on all ext4/vfat/yaffs2 partitions
// * to force tar on all partitions except yaffs2, call set_override_yaffs2_wrapper(0) before nandroid_force_backup_format("tar")
static int override_yaffs2_wrapper = 1;
void set_override_yaffs2_wrapper(int set) {
override_yaffs2_wrapper = set;
}
static nandroid_backup_handler get_backup_handler(const char *mount_point) {
Volume *v = volume_for_path(mount_point);
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(mount_point, "/data") == 0 && is_data_media()) {
return default_backup_handler;
}
// force yaffs2 to be backed up with default_backup_handler (tar/tar.gz/dup)
if (override_yaffs2_wrapper && strlen(forced_backup_format) > 0)
return default_backup_handler;
// Disable tar backups of yaffs2 by default
char prefer_tar[PROPERTY_VALUE_MAX];
property_get("ro.cwm.prefer_tar", prefer_tar, "false");
if (strcmp("yaffs2", mv->filesystem) == 0 && strcmp("false", prefer_tar) == 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;
// sdcard is mounted at this point by previous call to refresh_default_backup_handler()
// let's ensure it anyway
sprintf(tmp, "%s/%s", get_primary_storage_path(), NANDROID_HIDE_PROGRESS_FILE);
ensure_path_mounted(tmp);
int callback = stat(tmp, &file_info) != 0;
ui_print("\n>> Backing up %s...\n", mount_point);
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 (twrp_backup_mode.value) {
if (strstr(name, "android_secure") != NULL)
strcpy(name, "and-sec");
if (mv == NULL || mv->filesystem == NULL)
sprintf(tmp, "%s/%s.auto.win", backup_path, name);
else
sprintf(tmp, "%s/%s.%s.win", backup_path, name, mv->filesystem);
ret = twrp_backup_wrapper(mount_point, tmp, callback);
} else {
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) {
LOGE("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) {
LOGE("Error while making a backup image of %s!\n", mount_point);
return ret;
}
ui_print("Backup of %s completed.\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) {
ui_print("Volume not found! Skipping backup of %s...\n", root);
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) {
ui_print("\n>> Backing up %s...\n", root);
char name[PATH_MAX];
sprintf(name, "%s", BaseName(root));
if (strcmp(backup_path, "-") == 0)
strcpy(tmp, "/proc/self/fd/1");
else if (twrp_backup_mode.value)
sprintf(tmp, "%s/%s.%s.win", backup_path, name, vol->fs_type);
else
sprintf(tmp, "%s/%s.img", backup_path, name);
ui_print("Backing up %s image...\n", name);
if (0 != (ret = backup_raw_partition(vol->fs_type, vol->blk_device, tmp))) {
LOGE("Error while backing up %s image!\n", name);
return ret;
}
ui_print("Backup of %s image completed.\n", name);
return 0;
}
return nandroid_backup_partition_extended(backup_path, root, 1);
}
int nandroid_backup(const char* backup_path) {
nandroid_backup_bitfield = 0; // for dedupe mode
refresh_default_backup_handler(); // this will mount /sdcard (primary storage)
if (ensure_path_mounted(backup_path) != 0) {
return print_and_error("Can't mount backup path.\n", NANDROID_ERROR_GENERAL);
}
int ret;
struct statfs s;
// refresh size stats for backup_path
if (0 != (ret = Get_Size_Via_statfs(backup_path)))
return print_and_error("Unable to stat backup path.\n", ret);
// estimate backup size and ensure we have enough free space available on backup_path
if (check_backup_size(backup_path) < 0)
return print_and_error("Not enough free space: backup cancelled.\n", NANDROID_ERROR_GENERAL);
// moved after backup size check to fix pause before showing low space prompt
// this is caused by friendly log view triggering on ui_set_background(BACKGROUND_ICON_INSTALLING) call
// also, it is expected to have the background installing icon when we actually start backup
ui_set_background(BACKGROUND_ICON_INSTALLING);
nandroid_start_msec = timenow_msec(); // starts backup monitoring timer for total backup time
#ifdef PHILZ_TOUCH_RECOVERY
last_key_ev = nandroid_start_msec; //support dim screen timeout during nandroid operation
#endif
char tmp[PATH_MAX];
ensure_directory(backup_path, 0755);
if (backup_boot && volume_for_path(BOOT_PARTITION_MOUNT_POINT) != NULL &&
0 != (ret = nandroid_backup_partition(backup_path, BOOT_PARTITION_MOUNT_POINT)))
return print_and_error(NULL, ret);
// enabled by default (not an original CWM feature), but to restore, you need the Custom Restore Job
// when restoring from Nandroid Restore menu, recovery will not be restored (just like original CWM)
if (backup_recovery && volume_for_path("/recovery") != NULL &&
0 != (ret = nandroid_backup_partition(backup_path, "/recovery")))
return print_and_error(NULL, ret);
#ifdef BOARD_USE_MTK_LAYOUT
if ((backup_boot || backup_recovery) && volume_for_path("/uboot") != NULL &&
0 != (ret = nandroid_backup_partition(backup_path, "/uboot")))
return print_and_error(NULL, ret);
#endif
Volume *vol = volume_for_path("/wimax");
if (backup_wimax && vol != NULL && statfs(vol->blk_device, &s) == 0) {
char serialno[PROPERTY_VALUE_MAX];
ui_print("\n>> Backing up 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", ret);
}
if (backup_system && 0 != (ret = nandroid_backup_partition(backup_path, "/system")))
return print_and_error(NULL, ret);
if (backup_data && 0 != (ret = nandroid_backup_partition(backup_path, "/data")))
return print_and_error(NULL, ret);
if (has_datadata()) {
if (backup_data && 0 != (ret = nandroid_backup_partition(backup_path, "/datadata")))
return print_and_error(NULL, ret);
}
// handle .android_secure on external and internal storage
set_android_secure_path(tmp);
if (backup_data && android_secure_ext) {
if (0 != (ret = nandroid_backup_partition_extended(backup_path, tmp, 0)))
return print_and_error(NULL, ret);
}
if (backup_cache && 0 != (ret = nandroid_backup_partition_extended(backup_path, "/cache", 0)))
return print_and_error(NULL, ret);
if (backup_sdext) {
if (0 != ensure_path_mounted("/sd-ext")) {
LOGI("No sd-ext found. Skipping backup of sd-ext.\n");
} else if (0 != (ret = nandroid_backup_partition(backup_path, "/sd-ext"))) {
return print_and_error(NULL, ret);
}
}
vol = volume_for_path("/preload");
if (vol != NULL) {
if (is_custom_backup && backup_preload) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/preload"))) {
return print_and_error("Failed to backup /preload!\n", ret);
}
} else if (!is_custom_backup && nandroid_add_preload.value) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/preload"))) {
ui_print("Failed to backup preload! Try to disable it.\n");
ui_print("Skipping /preload...\n");
//return print_and_error("Failed to backup /preload!\n", ret);
}
}
}
// 2 copies of efs are made: tarball and dd/cat raw backup
vol = volume_for_path("/efs");
if (backup_efs && vol != NULL) {
//first backup in raw format, returns 0 on success (or if skipped), else 1
sprintf(tmp, "%s", DirName(backup_path));
if (0 != dd_raw_backup_handler(tmp, "/efs"))
ui_print("EFS raw image backup failed! Trying native backup...\n");
//second backup in native cwm format
ui_print("creating 2nd copy...\n");
if (0 != (ret = nandroid_backup_partition(backup_path, "/efs")))
return print_and_error(NULL, ret);
}
vol = volume_for_path("/misc");
if (backup_misc && vol != NULL) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/misc")))
return print_and_error(NULL, ret);
}
vol = volume_for_path("/modem");
if (backup_modem && NULL != vol) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/modem")))
return print_and_error(NULL, ret);
}
vol = volume_for_path("/radio");
if (backup_radio && NULL != vol) {
if (0 != (ret = nandroid_backup_partition(backup_path, "/radio")))
return print_and_error(NULL, ret);
}
if (backup_data_media && 0 != (ret = nandroid_backup_datamedia(backup_path)))
return print_and_error(NULL, ret);
// handle extra partitions
int i;
int extra_partitions_num = get_extra_partitions_state();
for (i = 0; i < extra_partitions_num; ++i) {
if (extra_partition[i].backup_state && 0 != (ret = nandroid_backup_partition(backup_path, extra_partition[i].mount_point)))
return print_and_error(NULL, ret);
}
if (enable_md5sum.value && 0 != (ret = gen_nandroid_md5sum(backup_path)))
return print_and_error(NULL, ret);
sprintf(tmp, "cp /tmp/recovery.log %s/recovery.log", backup_path);
__system(tmp);
char base_dir[PATH_MAX];
strcpy(base_dir, backup_path);
char *d = dirname(base_dir);
strcpy(base_dir, d);
d = dirname(base_dir);
strcpy(base_dir, d);
sprintf(tmp, "chmod -R 777 %s ; chmod -R u+r,u+w,g+r,g+w,o+r,o+w %s ; chmod u+x,g+x,o+x %s/backup", backup_path, base_dir, base_dir);
__system(tmp);
sprintf(tmp, "if [ -d %s/blobs ]; then chmod u+x,g+x,o+x %s/blobs; fi", base_dir, base_dir);
__system(tmp);
finish_nandroid_job();
show_backup_stats(backup_path);
if (reboot_after_nandroid)
reboot_main_system(ANDROID_RB_RESTART, 0, 0);
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) {
Volume *vol = volume_for_path("/boot");
// make sure the volume exists before attempting anything...
if (vol == NULL || vol->fs_type == NULL)
return 1;
char cmd[PATH_MAX];
sprintf(cmd, "cat %s", vol->blk_device);
return __system(cmd);
// return nandroid_backup_partition("-", "/boot");
}
if (strcmp(partition, "recovery") == 0) {
return __system("set -o pipefail ; 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("Unable to execute unyaffs.\n");
return -1;
}
int nand_starts = 1;
last_size_update = 0;
check_restore_size(backup_file_image, backup_path);
while (fgets(tmp, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, NULL, 0, &nand_starts))
return -1;
#endif
tmp[PATH_MAX - 1] = '\0';
if (callback) {
update_size_progress(backup_path);
nandroid_callback(tmp);
}
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
return __pclose(fp);
}
static int do_tar_extract(char* command, const char* backup_file_image, const char* backup_path, int callback) {
char buf[PATH_MAX];
set_perf_mode(1);
FILE *fp = __popen(command, "r");
if (fp == NULL) {
ui_print("Unable to execute tar command.\n");
set_perf_mode(0);
return -1;
}
int nand_starts = 1;
last_size_update = 0;
check_restore_size(backup_file_image, backup_path);
while (fgets(buf, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, NULL, 0, &nand_starts)) {
set_perf_mode(0);
return -1;
}
#endif
buf[PATH_MAX - 1] = '\0';
if (callback) {
update_size_progress(backup_path);
nandroid_callback(buf);
}
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
set_perf_mode(0);
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) ; set -o pipefail ; cat %s* | pigz -d -c | tar -xpv ; exit $?", backup_path, backup_file_image);
return do_tar_extract(tmp, backup_file_image, backup_path, 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) ; set -o pipefail ; cat %s* | tar -xpv ; exit $?", backup_path, backup_file_image);
return do_tar_extract(tmp, backup_file_image, backup_path, 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("Unable to execute dedupe.\n");
return -1;
}
int nand_starts = 1;
while (fgets(path, PATH_MAX, fp) != NULL) {
#ifdef PHILZ_TOUCH_RECOVERY
if (user_cancel_nandroid(&fp, NULL, 0, &nand_starts))
return -1;
#endif
if (callback)
nandroid_callback(path);
}
#ifdef PHILZ_TOUCH_RECOVERY
ui_print_preset_colors(0, NULL);
#endif
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 -xpv ", 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("Unable to find volume.\n");
return NULL;
}
scan_mounted_volumes();
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 tar_extract_wrapper;
}
// Disable tar backups of yaffs2 by default
char prefer_tar[PROPERTY_VALUE_MAX];
property_get("ro.cwm.prefer_tar", prefer_tar, "false");
if (strcmp("yaffs2", mv->filesystem) == 0 && strcmp("false", prefer_tar) == 0) {
return unyaffs_wrapper;
}
return tar_extract_wrapper;
}
// include after all static handlers declarations
#include "nandroid_advanced.c"
int nandroid_restore_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char name[PATH_MAX];
sprintf(name, "%s", BaseName(mount_point));
nandroid_restore_handler restore_handler = NULL;
const char *filesystems[] = { "yaffs2", "ext2", "ext3", "ext4", "vfat", "exfat", "rfs", "f2fs", NULL };
const char* backup_filesystem = NULL;
Volume *vol = volume_for_path(mount_point);
const char *device = NULL;
if (vol != NULL)
device = vol->blk_device;
ui_print("\n>> Restoring %s...\n", mount_point);
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 (twrp_backup_mode.value || 0 != (ret = stat(tmp, &file_info))) {
// if we are restoring a TWRP backup, arg 2 is not checked, Oufff!!
// can't find the backup, it may be the new backup format?
// iterate through the backup types
printf("couldn't find old .img format\n");
const char *filesystem;
int i = 0;
while ((filesystem = filesystems[i]) != NULL) {
if (twrp_backup_mode.value) {
if (strstr(name, "android_secure") != NULL)
strcpy(name, "and-sec");
sprintf(tmp, "%s/%s.%s.win", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
break;
}
sprintf(tmp, "%s/%s.%s.win000", backup_path, name, filesystem);
if (0 == (ret = stat(tmp, &file_info))) {
backup_filesystem = filesystem;
break;
}
sprintf(tmp, "%s/%s.auto.win", backup_path, name);
if (0 == (ret = stat(tmp, &file_info))) {
break;
}
sprintf(tmp, "%s/%s.auto.win000", backup_path, name);
if (0 == (ret = stat(tmp, &file_info))) {
break;
}
} else {
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 (twrp_backup_mode.value) {
if (ret != 0) {
ui_print("Could not find TWRP backup image for %s\n", mount_point);
ui_print("Skipping restore of %s\n", mount_point);
return 0;
}
ui_print("Found backup image: %s\n", BaseName(tmp));
} else if (backup_filesystem == NULL || restore_handler == NULL) {
//ui_print("%s.img not found. Skipping restore of %s.\n", name, mount_point);
ui_print("No %s backup found(img, tar, dup). Skipping restore of %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;
else if (0 == strcmp(vol->mount_point, "/data") && is_data_media())
backup_filesystem = NULL;
#ifdef USE_F2FS
// allow restoring ext4 backup to f2fs filesystem, vice versa
// if backup image and target partition have different fstype and both are either f2fs or ext4, preserve target partition fstype
// this makes it possible to migrate your backups from one system to another by manually formatting target partition to a different fstype
else if (backup_filesystem != NULL && strcmp(vol->fs_type, backup_filesystem) != 0 &&
(strcmp(vol->fs_type, "ext4") == 0 || strcmp(vol->fs_type, "f2fs") == 0) &&
(strcmp(backup_filesystem, "ext4") == 0 || strcmp(backup_filesystem, "f2fs") == 0))
backup_filesystem = NULL;