| /* Partition class for TWRP |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301, USA. |
| * |
| * The code was written from scratch by Dees_Troy dees_troy at |
| * yahoo |
| * |
| * Copyright (c) 2012 |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/vfs.h> |
| #include <sys/mount.h> |
| #include <unistd.h> |
| #include <dirent.h> |
| #include <iostream> |
| #include <sstream> |
| |
| #ifdef TW_INCLUDE_CRYPTO |
| #include "cutils/properties.h" |
| #endif |
| |
| #include "variables.h" |
| #include "common.h" |
| #include "partitions.hpp" |
| #include "data.hpp" |
| #include "twrp-functions.hpp" |
| #include "twrpTar.hpp" |
| extern "C" { |
| #include "mtdutils/mtdutils.h" |
| #include "mtdutils/mounts.h" |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| #include "crypto/libcrypt_samsung/include/libcrypt_samsung.h" |
| #endif |
| } |
| |
| using namespace std; |
| |
| TWPartition::TWPartition(void) { |
| Can_Be_Mounted = false; |
| Can_Be_Wiped = false; |
| Wipe_During_Factory_Reset = false; |
| Wipe_Available_in_GUI = false; |
| Is_SubPartition = false; |
| Has_SubPartition = false; |
| SubPartition_Of = ""; |
| Symlink_Path = ""; |
| Symlink_Mount_Point = ""; |
| Mount_Point = ""; |
| Backup_Path = ""; |
| Actual_Block_Device = ""; |
| Primary_Block_Device = ""; |
| Alternate_Block_Device = ""; |
| Removable = false; |
| Is_Present = false; |
| Length = 0; |
| Size = 0; |
| Used = 0; |
| Free = 0; |
| Backup_Size = 0; |
| Can_Be_Encrypted = false; |
| Is_Encrypted = false; |
| Is_Decrypted = false; |
| Decrypted_Block_Device = ""; |
| Display_Name = ""; |
| Backup_Name = ""; |
| Backup_FileName = ""; |
| MTD_Name = ""; |
| Backup_Method = NONE; |
| Has_Data_Media = false; |
| Has_Android_Secure = false; |
| Is_Storage = false; |
| Storage_Path = ""; |
| Current_File_System = ""; |
| Fstab_File_System = ""; |
| Format_Block_Size = 0; |
| Ignore_Blkid = false; |
| Retain_Layout_Version = false; |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| EcryptFS_Password = ""; |
| #endif |
| } |
| |
| TWPartition::~TWPartition(void) { |
| // Do nothing |
| } |
| |
| bool TWPartition::Process_Fstab_Line(string Line, bool Display_Error) { |
| char full_line[MAX_FSTAB_LINE_LENGTH], item[MAX_FSTAB_LINE_LENGTH]; |
| int line_len = Line.size(), index = 0, item_index = 0; |
| char* ptr; |
| string Flags; |
| strncpy(full_line, Line.c_str(), line_len); |
| |
| for (index = 0; index < line_len; index++) { |
| if (full_line[index] <= 32) |
| full_line[index] = '\0'; |
| } |
| Mount_Point = full_line; |
| LOGI("Processing '%s'\n", Mount_Point.c_str()); |
| Backup_Path = Mount_Point; |
| index = Mount_Point.size(); |
| while (index < line_len) { |
| while (index < line_len && full_line[index] == '\0') |
| index++; |
| if (index >= line_len) |
| continue; |
| ptr = full_line + index; |
| if (item_index == 0) { |
| // File System |
| Fstab_File_System = ptr; |
| Current_File_System = ptr; |
| item_index++; |
| } else if (item_index == 1) { |
| // Primary Block Device |
| if (Fstab_File_System == "mtd" || Fstab_File_System == "yaffs2") { |
| MTD_Name = ptr; |
| Find_MTD_Block_Device(MTD_Name); |
| } else if (Fstab_File_System == "bml") { |
| if (Mount_Point == "/boot") |
| MTD_Name = "boot"; |
| else if (Mount_Point == "/recovery") |
| MTD_Name = "recovery"; |
| Primary_Block_Device = ptr; |
| if (*ptr != '/') |
| LOGE("Until we get better BML support, you will have to find and provide the full block device path to the BML devices e.g. /dev/block/bml9 instead of the partition name\n"); |
| } else if (*ptr != '/') { |
| if (Display_Error) |
| LOGE("Invalid block device on '%s', '%s', %i\n", Line.c_str(), ptr, index); |
| else |
| LOGI("Invalid block device on '%s', '%s', %i\n", Line.c_str(), ptr, index); |
| return 0; |
| } else { |
| Primary_Block_Device = ptr; |
| Find_Real_Block_Device(Primary_Block_Device, Display_Error); |
| } |
| item_index++; |
| } else if (item_index > 1) { |
| if (*ptr == '/') { |
| // Alternate Block Device |
| Alternate_Block_Device = ptr; |
| Find_Real_Block_Device(Alternate_Block_Device, Display_Error); |
| } else if (strlen(ptr) > 7 && strncmp(ptr, "length=", 7) == 0) { |
| // Partition length |
| ptr += 7; |
| Length = atoi(ptr); |
| } else if (strlen(ptr) > 6 && strncmp(ptr, "flags=", 6) == 0) { |
| // Custom flags, save for later so that new values aren't overwritten by defaults |
| ptr += 6; |
| Flags = ptr; |
| Process_Flags(Flags, Display_Error); |
| } else if (strlen(ptr) == 4 && (strncmp(ptr, "NULL", 4) == 0 || strncmp(ptr, "null", 4) == 0 || strncmp(ptr, "null", 4) == 0)) { |
| // Do nothing |
| } else { |
| // Unhandled data |
| LOGI("Unhandled fstab information: '%s', %i, line: '%s'\n", ptr, index, Line.c_str()); |
| } |
| } |
| while (index < line_len && full_line[index] != '\0') |
| index++; |
| } |
| |
| if (!Is_File_System(Fstab_File_System) && !Is_Image(Fstab_File_System)) { |
| if (Display_Error) |
| LOGE("Unknown File System: '%s'\n", Fstab_File_System.c_str()); |
| else |
| LOGI("Unknown File System: '%s'\n", Fstab_File_System.c_str()); |
| return 0; |
| } else if (Is_File_System(Fstab_File_System)) { |
| Find_Actual_Block_Device(); |
| Setup_File_System(Display_Error); |
| if (Mount_Point == "/system") { |
| Display_Name = "System"; |
| Wipe_Available_in_GUI = true; |
| } else if (Mount_Point == "/data") { |
| Display_Name = "Data"; |
| Wipe_Available_in_GUI = true; |
| Wipe_During_Factory_Reset = true; |
| #ifdef RECOVERY_SDCARD_ON_DATA |
| Has_Data_Media = true; |
| Is_Storage = true; |
| Storage_Path = "/data/media"; |
| Symlink_Path = Storage_Path; |
| if (strcmp(EXPAND(TW_EXTERNAL_STORAGE_PATH), "/sdcard") == 0) { |
| Make_Dir("/emmc", Display_Error); |
| Symlink_Mount_Point = "/emmc"; |
| } else { |
| Make_Dir("/sdcard", Display_Error); |
| Symlink_Mount_Point = "/sdcard"; |
| } |
| if (Mount(false) && TWFunc::Path_Exists("/data/media/0")) { |
| Storage_Path = "/data/media/0"; |
| Symlink_Path = Storage_Path; |
| DataManager::SetValue(TW_INTERNAL_PATH, "/data/media/0"); |
| UnMount(true); |
| } |
| #endif |
| #ifdef TW_INCLUDE_CRYPTO |
| Can_Be_Encrypted = true; |
| char crypto_blkdev[255]; |
| property_get("ro.crypto.fs_crypto_blkdev", crypto_blkdev, "error"); |
| if (strcmp(crypto_blkdev, "error") != 0) { |
| DataManager::SetValue(TW_DATA_BLK_DEVICE, Primary_Block_Device); |
| DataManager::SetValue(TW_IS_DECRYPTED, 1); |
| Is_Encrypted = true; |
| Is_Decrypted = true; |
| Decrypted_Block_Device = crypto_blkdev; |
| LOGI("Data already decrypted, new block device: '%s'\n", crypto_blkdev); |
| } else if (!Mount(false)) { |
| Is_Encrypted = true; |
| Is_Decrypted = false; |
| Can_Be_Mounted = false; |
| Current_File_System = "emmc"; |
| Setup_Image(Display_Error); |
| DataManager::SetValue(TW_IS_ENCRYPTED, 1); |
| DataManager::SetValue(TW_CRYPTO_PASSWORD, ""); |
| DataManager::SetValue("tw_crypto_display", ""); |
| } else { |
| // Filesystem is not encrypted and the mount |
| // succeeded, so get it back to the original |
| // unmounted state |
| UnMount(false); |
| } |
| #ifdef RECOVERY_SDCARD_ON_DATA |
| if (!Is_Encrypted || (Is_Encrypted && Is_Decrypted)) |
| Recreate_Media_Folder(); |
| #endif |
| #else |
| #ifdef RECOVERY_SDCARD_ON_DATA |
| Recreate_Media_Folder(); |
| #endif |
| #endif |
| } else if (Mount_Point == "/cache") { |
| Display_Name = "Cache"; |
| Wipe_Available_in_GUI = true; |
| Wipe_During_Factory_Reset = true; |
| if (Mount(false) && !TWFunc::Path_Exists("/cache/recovery/.")) { |
| LOGI("Recreating /cache/recovery folder.\n"); |
| if (mkdir("/cache/recovery", S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP) != 0) |
| return -1; |
| } |
| } else if (Mount_Point == "/datadata") { |
| Wipe_During_Factory_Reset = true; |
| Display_Name = "DataData"; |
| Is_SubPartition = true; |
| SubPartition_Of = "/data"; |
| DataManager::SetValue(TW_HAS_DATADATA, 1); |
| } else if (Mount_Point == "/sd-ext") { |
| Wipe_During_Factory_Reset = true; |
| Display_Name = "SD-Ext"; |
| Wipe_Available_in_GUI = true; |
| Removable = true; |
| } else if (Mount_Point == "/boot") { |
| Display_Name = "Boot"; |
| DataManager::SetValue("tw_boot_is_mountable", 1); |
| } |
| #ifdef TW_EXTERNAL_STORAGE_PATH |
| if (Mount_Point == EXPAND(TW_EXTERNAL_STORAGE_PATH)) { |
| Is_Storage = true; |
| Storage_Path = EXPAND(TW_EXTERNAL_STORAGE_PATH); |
| Removable = true; |
| } |
| #else |
| if (Mount_Point == "/sdcard") { |
| Is_Storage = true; |
| Storage_Path = "/sdcard"; |
| Removable = true; |
| #ifndef RECOVERY_SDCARD_ON_DATA |
| Setup_AndSec(); |
| Mount_Storage_Retry(); |
| #endif |
| } |
| #endif |
| #ifdef TW_INTERNAL_STORAGE_PATH |
| if (Mount_Point == EXPAND(TW_INTERNAL_STORAGE_PATH)) { |
| Is_Storage = true; |
| Storage_Path = EXPAND(TW_INTERNAL_STORAGE_PATH); |
| #ifndef RECOVERY_SDCARD_ON_DATA |
| Setup_AndSec(); |
| Mount_Storage_Retry(); |
| #endif |
| } |
| #else |
| if (Mount_Point == "/emmc") { |
| Is_Storage = true; |
| Storage_Path = "/emmc"; |
| #ifndef RECOVERY_SDCARD_ON_DATA |
| Setup_AndSec(); |
| Mount_Storage_Retry(); |
| #endif |
| } |
| #endif |
| } else if (Is_Image(Fstab_File_System)) { |
| Find_Actual_Block_Device(); |
| Setup_Image(Display_Error); |
| } |
| |
| // Process any custom flags |
| if (Flags.size() > 0) |
| Process_Flags(Flags, Display_Error); |
| return true; |
| } |
| |
| bool TWPartition::Process_Flags(string Flags, bool Display_Error) { |
| char flags[MAX_FSTAB_LINE_LENGTH]; |
| int flags_len, index = 0; |
| char* ptr; |
| |
| strcpy(flags, Flags.c_str()); |
| flags_len = Flags.size(); |
| for (index = 0; index < flags_len; index++) { |
| if (flags[index] == ';') |
| flags[index] = '\0'; |
| } |
| |
| index = 0; |
| while (index < flags_len) { |
| while (index < flags_len && flags[index] == '\0') |
| index++; |
| if (index >= flags_len) |
| continue; |
| ptr = flags + index; |
| if (strcmp(ptr, "removable") == 0) { |
| Removable = true; |
| } else if (strcmp(ptr, "storage") == 0) { |
| Is_Storage = true; |
| } else if (strcmp(ptr, "canbewiped") == 0) { |
| Can_Be_Wiped = true; |
| } else if (strcmp(ptr, "wipeingui") == 0) { |
| Can_Be_Wiped = true; |
| Wipe_Available_in_GUI = true; |
| } else if (strcmp(ptr, "wipeduringfactoryreset") == 0) { |
| Can_Be_Wiped = true; |
| Wipe_Available_in_GUI = true; |
| Wipe_During_Factory_Reset = true; |
| } else if (strlen(ptr) > 15 && strncmp(ptr, "subpartitionof=", 15) == 0) { |
| ptr += 15; |
| Is_SubPartition = true; |
| SubPartition_Of = ptr; |
| } else if (strcmp(ptr, "ignoreblkid") == 0) { |
| Ignore_Blkid = true; |
| } else if (strcmp(ptr, "retainlayoutversion") == 0) { |
| Retain_Layout_Version = true; |
| } else if (strlen(ptr) > 8 && strncmp(ptr, "symlink=", 8) == 0) { |
| ptr += 8; |
| Symlink_Path = ptr; |
| } else if (strlen(ptr) > 8 && strncmp(ptr, "display=", 8) == 0) { |
| ptr += 8; |
| Display_Name = ptr; |
| } else if (strlen(ptr) > 10 && strncmp(ptr, "blocksize=", 10) == 0) { |
| ptr += 10; |
| Format_Block_Size = atoi(ptr); |
| } else if (strlen(ptr) > 7 && strncmp(ptr, "length=", 7) == 0) { |
| ptr += 7; |
| Length = atoi(ptr); |
| } else { |
| if (Display_Error) |
| LOGE("Unhandled flag: '%s'\n", ptr); |
| else |
| LOGI("Unhandled flag: '%s'\n", ptr); |
| } |
| while (index < flags_len && flags[index] != '\0') |
| index++; |
| } |
| return true; |
| } |
| |
| bool TWPartition::Is_File_System(string File_System) { |
| if (File_System == "ext2" || |
| File_System == "ext3" || |
| File_System == "ext4" || |
| File_System == "vfat" || |
| File_System == "ntfs" || |
| File_System == "yaffs2" || |
| File_System == "exfat" || |
| File_System == "auto") |
| return true; |
| else |
| return false; |
| } |
| |
| bool TWPartition::Is_Image(string File_System) { |
| if (File_System == "emmc" || File_System == "mtd" || File_System == "bml") |
| return true; |
| else |
| return false; |
| } |
| |
| bool TWPartition::Make_Dir(string Path, bool Display_Error) { |
| if (!TWFunc::Path_Exists(Path)) { |
| if (mkdir(Path.c_str(), 0777) == -1) { |
| if (Display_Error) |
| LOGE("Can not create '%s' folder.\n", Path.c_str()); |
| else |
| LOGI("Can not create '%s' folder.\n", Path.c_str()); |
| return false; |
| } else { |
| LOGI("Created '%s' folder.\n", Path.c_str()); |
| return true; |
| } |
| } |
| return true; |
| } |
| |
| void TWPartition::Setup_File_System(bool Display_Error) { |
| struct statfs st; |
| |
| Can_Be_Mounted = true; |
| Can_Be_Wiped = true; |
| |
| // Make the mount point folder if it doesn't exist |
| Make_Dir(Mount_Point, Display_Error); |
| Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1); |
| Backup_Name = Display_Name; |
| Backup_Method = FILES; |
| } |
| |
| void TWPartition::Setup_Image(bool Display_Error) { |
| Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1); |
| Backup_Name = Display_Name; |
| if (Current_File_System == "emmc") |
| Backup_Method = DD; |
| else if (Current_File_System == "mtd" || Current_File_System == "bml") |
| Backup_Method = FLASH_UTILS; |
| else |
| LOGI("Unhandled file system '%s' on image '%s'\n", Current_File_System.c_str(), Display_Name.c_str()); |
| if (Find_Partition_Size()) { |
| Used = Size; |
| Backup_Size = Size; |
| } else { |
| if (Display_Error) |
| LOGE("Unable to find parition size for '%s'\n", Mount_Point.c_str()); |
| else |
| LOGI("Unable to find parition size for '%s'\n", Mount_Point.c_str()); |
| } |
| } |
| |
| void TWPartition::Setup_AndSec(void) { |
| Backup_Name = "and-sec"; |
| Has_Android_Secure = true; |
| Symlink_Path = Mount_Point + "/.android_secure"; |
| Symlink_Mount_Point = "/and-sec"; |
| Backup_Path = Symlink_Mount_Point; |
| Make_Dir("/and-sec", true); |
| Recreate_AndSec_Folder(); |
| } |
| |
| void TWPartition::Find_Real_Block_Device(string& Block, bool Display_Error) { |
| char device[512], realDevice[512]; |
| |
| strcpy(device, Block.c_str()); |
| memset(realDevice, 0, sizeof(realDevice)); |
| while (readlink(device, realDevice, sizeof(realDevice)) > 0) |
| { |
| strcpy(device, realDevice); |
| memset(realDevice, 0, sizeof(realDevice)); |
| } |
| |
| if (device[0] != '/') { |
| if (Display_Error) |
| LOGE("Invalid symlink path '%s' found on block device '%s'\n", device, Block.c_str()); |
| else |
| LOGI("Invalid symlink path '%s' found on block device '%s'\n", device, Block.c_str()); |
| return; |
| } else { |
| Block = device; |
| return; |
| } |
| } |
| |
| void TWPartition::Mount_Storage_Retry(void) { |
| // On some devices, storage doesn't want to mount right away, retry and sleep |
| if (!Mount(true)) { |
| int retry_count = 5; |
| while (retry_count > 0 && !Mount(false)) { |
| usleep(500000); |
| retry_count--; |
| } |
| Mount(true); |
| } |
| } |
| |
| bool TWPartition::Find_MTD_Block_Device(string MTD_Name) { |
| FILE *fp = NULL; |
| char line[255]; |
| |
| fp = fopen("/proc/mtd", "rt"); |
| if (fp == NULL) { |
| LOGE("Device does not support /proc/mtd\n"); |
| return false; |
| } |
| |
| while (fgets(line, sizeof(line), fp) != NULL) |
| { |
| char device[32], label[32]; |
| unsigned long size = 0; |
| char* fstype = NULL; |
| int deviceId; |
| |
| sscanf(line, "%s %lx %*s %*c%s", device, &size, label); |
| |
| // Skip header and blank lines |
| if ((strcmp(device, "dev:") == 0) || (strlen(line) < 8)) |
| continue; |
| |
| // Strip off the trailing " from the label |
| label[strlen(label)-1] = '\0'; |
| |
| if (strcmp(label, MTD_Name.c_str()) == 0) { |
| // We found our device |
| // Strip off the trailing : from the device |
| device[strlen(device)-1] = '\0'; |
| if (sscanf(device,"mtd%d", &deviceId) == 1) { |
| sprintf(device, "/dev/block/mtdblock%d", deviceId); |
| Primary_Block_Device = device; |
| } |
| } |
| } |
| fclose(fp); |
| |
| return false; |
| } |
| |
| bool TWPartition::Get_Size_Via_statfs(bool Display_Error) { |
| struct statfs st; |
| string Local_Path = Mount_Point + "/."; |
| |
| if (!Mount(Display_Error)) |
| return false; |
| |
| if (statfs(Local_Path.c_str(), &st) != 0) { |
| if (!Removable) { |
| if (Display_Error) |
| LOGE("Unable to statfs '%s'\n", Local_Path.c_str()); |
| else |
| LOGI("Unable to statfs '%s'\n", Local_Path.c_str()); |
| } |
| return false; |
| } |
| Size = (st.f_blocks * st.f_bsize); |
| Used = ((st.f_blocks - st.f_bfree) * st.f_bsize); |
| Free = (st.f_bfree * st.f_bsize); |
| Backup_Size = Used; |
| return true; |
| } |
| |
| bool TWPartition::Get_Size_Via_df(bool Display_Error) { |
| FILE* fp; |
| char command[255], line[512]; |
| int include_block = 1; |
| unsigned int min_len; |
| string result; |
| |
| if (!Mount(Display_Error)) |
| return false; |
| |
| min_len = Actual_Block_Device.size() + 2; |
| sprintf(command, "df %s > /tmp/dfoutput.txt", Mount_Point.c_str()); |
| TWFunc::Exec_Cmd(command, result); |
| fp = fopen("/tmp/dfoutput.txt", "rt"); |
| if (fp == NULL) { |
| LOGI("Unable to open /tmp/dfoutput.txt.\n"); |
| return false; |
| } |
| |
| while (fgets(line, sizeof(line), fp) != NULL) |
| { |
| unsigned long blocks, used, available; |
| char device[64]; |
| char tmpString[64]; |
| |
| if (strncmp(line, "Filesystem", 10) == 0) |
| continue; |
| if (strlen(line) < min_len) { |
| include_block = 0; |
| continue; |
| } |
| if (include_block) { |
| sscanf(line, "%s %lu %lu %lu", device, &blocks, &used, &available); |
| } else { |
| // The device block string is so long that the df information is on the next line |
| int space_count = 0; |
| sprintf(tmpString, "/dev/block/%s", Actual_Block_Device.c_str()); |
| while (tmpString[space_count] == 32) |
| space_count++; |
| sscanf(line + space_count, "%lu %lu %lu", &blocks, &used, &available); |
| } |
| |
| // Adjust block size to byte size |
| Size = blocks * 1024ULL; |
| Used = used * 1024ULL; |
| Free = available * 1024ULL; |
| Backup_Size = Used; |
| } |
| fclose(fp); |
| return true; |
| } |
| |
| bool TWPartition::Find_Partition_Size(void) { |
| FILE* fp; |
| char line[512]; |
| string tmpdevice; |
| |
| // In this case, we'll first get the partitions we care about (with labels) |
| fp = fopen("/proc/partitions", "rt"); |
| if (fp == NULL) |
| return false; |
| |
| while (fgets(line, sizeof(line), fp) != NULL) |
| { |
| unsigned long major, minor, blocks; |
| char device[512]; |
| char tmpString[64]; |
| |
| if (strlen(line) < 7 || line[0] == 'm') continue; |
| sscanf(line + 1, "%lu %lu %lu %s", &major, &minor, &blocks, device); |
| |
| tmpdevice = "/dev/block/"; |
| tmpdevice += device; |
| if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) { |
| // Adjust block size to byte size |
| Size = blocks * 1024ULL; |
| fclose(fp); |
| return true; |
| } |
| } |
| fclose(fp); |
| return false; |
| } |
| |
| bool TWPartition::Is_Mounted(void) { |
| if (!Can_Be_Mounted) |
| return false; |
| |
| struct stat st1, st2; |
| string test_path; |
| |
| // Check to see if the mount point directory exists |
| test_path = Mount_Point + "/."; |
| if (stat(test_path.c_str(), &st1) != 0) return false; |
| |
| // Check to see if the directory above the mount point exists |
| test_path = Mount_Point + "/../."; |
| if (stat(test_path.c_str(), &st2) != 0) return false; |
| |
| // Compare the device IDs -- if they match then we're (probably) using tmpfs instead of an actual device |
| int ret = (st1.st_dev != st2.st_dev) ? true : false; |
| |
| return ret; |
| } |
| |
| bool TWPartition::Mount(bool Display_Error) { |
| if (Is_Mounted()) { |
| return true; |
| } else if (!Can_Be_Mounted) { |
| return false; |
| } |
| |
| Find_Actual_Block_Device(); |
| |
| // Check the current file system before mounting |
| Check_FS_Type(); |
| if (Fstab_File_System == "yaffs2") { |
| // mount an MTD partition as a YAFFS2 filesystem. |
| mtd_scan_partitions(); |
| const MtdPartition* partition; |
| partition = mtd_find_partition_by_name(MTD_Name.c_str()); |
| if (partition == NULL) { |
| LOGE("Failed to find '%s' partition to mount at '%s'\n", |
| MTD_Name.c_str(), Mount_Point.c_str()); |
| return false; |
| } |
| if (mtd_mount_partition(partition, Mount_Point.c_str(), Fstab_File_System.c_str(), 0)) { |
| if (Display_Error) |
| LOGE("Failed to mount '%s' (MTD)\n", Mount_Point.c_str()); |
| else |
| LOGI("Failed to mount '%s' (MTD)\n", Mount_Point.c_str()); |
| return false; |
| } else |
| return true; |
| } else if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sbin/exfat-fuse")) { |
| string cmd = "/sbin/exfat-fuse " + Actual_Block_Device + " " + Mount_Point; |
| LOGI("cmd: %s\n", cmd.c_str()); |
| string result; |
| if (TWFunc::Exec_Cmd(cmd, result) != 0) |
| return false; |
| } else if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Current_File_System.c_str(), 0, NULL) != 0) { |
| if (Display_Error) |
| LOGE("Unable to mount '%s'\n", Mount_Point.c_str()); |
| else |
| LOGI("Unable to mount '%s'\n", Mount_Point.c_str()); |
| LOGI("Actual block device: '%s', current file system: '%s'\n", Actual_Block_Device.c_str(), Current_File_System.c_str()); |
| return false; |
| } else { |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| string MetaEcfsFile = EXPAND(TW_EXTERNAL_STORAGE_PATH); |
| MetaEcfsFile += "/.MetaEcfsFile"; |
| if (EcryptFS_Password.size() > 0 && PartitionManager.Mount_By_Path("/data", false) && TWFunc::Path_Exists(MetaEcfsFile)) { |
| if (mount_ecryptfs_drive(EcryptFS_Password.c_str(), Mount_Point.c_str(), Mount_Point.c_str(), 0) != 0) { |
| if (Display_Error) |
| LOGE("Unable to mount ecryptfs for '%s'\n", Mount_Point.c_str()); |
| else |
| LOGI("Unable to mount ecryptfs for '%s'\n", Mount_Point.c_str()); |
| } else { |
| LOGI("Successfully mounted ecryptfs for '%s'\n", Mount_Point.c_str()); |
| } |
| } |
| #endif |
| if (Removable) |
| Update_Size(Display_Error); |
| |
| if (!Symlink_Mount_Point.empty()) { |
| string Command, Result; |
| Command = "mount '" + Symlink_Path + "' '" + Symlink_Mount_Point + "'"; |
| TWFunc::Exec_Cmd(Command, Result); |
| } |
| return true; |
| } |
| return true; |
| } |
| |
| bool TWPartition::UnMount(bool Display_Error) { |
| if (Is_Mounted()) { |
| int never_unmount_system; |
| |
| DataManager::GetValue(TW_DONT_UNMOUNT_SYSTEM, never_unmount_system); |
| if (never_unmount_system == 1 && Mount_Point == "/system") |
| return true; // Never unmount system if you're not supposed to unmount it |
| |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| if (EcryptFS_Password.size() > 0) { |
| if (unmount_ecryptfs_drive(Mount_Point.c_str()) != 0) { |
| if (Display_Error) |
| LOGE("Unable to unmount ecryptfs for '%s'\n", Mount_Point.c_str()); |
| else |
| LOGI("Unable to unmount ecryptfs for '%s'\n", Mount_Point.c_str()); |
| } else { |
| LOGI("Successfully unmounted ecryptfs for '%s'\n", Mount_Point.c_str()); |
| } |
| } |
| #endif |
| |
| if (!Symlink_Mount_Point.empty()) |
| umount(Symlink_Mount_Point.c_str()); |
| |
| if (umount(Mount_Point.c_str()) != 0) { |
| if (Display_Error) |
| LOGE("Unable to unmount '%s'\n", Mount_Point.c_str()); |
| else |
| LOGI("Unable to unmount '%s'\n", Mount_Point.c_str()); |
| return false; |
| } else |
| return true; |
| } else { |
| return true; |
| } |
| } |
| |
| bool TWPartition::Wipe(string New_File_System) { |
| bool wiped = false, update_crypt = false; |
| int check; |
| string Layout_Filename = Mount_Point + "/.layout_version"; |
| |
| if (!Can_Be_Wiped) { |
| LOGE("Partition '%s' cannot be wiped.\n", Mount_Point.c_str()); |
| return false; |
| } |
| |
| if (Mount_Point == "/cache") |
| tmplog_offset = 0; |
| |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| if (Mount_Point == "/data" && Mount(false)) { |
| if (TWFunc::Path_Exists("/data/system/edk_p_sd")) |
| TWFunc::copy_file("/data/system/edk_p_sd", "/tmp/edk_p_sd", 0600); |
| } |
| #endif |
| |
| if (Retain_Layout_Version && Mount(false) && TWFunc::Path_Exists(Layout_Filename)) |
| TWFunc::copy_file(Layout_Filename, "/.layout_version", 0600); |
| else |
| unlink("/.layout_version"); |
| |
| if (Has_Data_Media) { |
| wiped = Wipe_Data_Without_Wiping_Media(); |
| } else { |
| |
| DataManager::GetValue(TW_RM_RF_VAR, check); |
| |
| if (check) |
| wiped = Wipe_RMRF(); |
| else if (New_File_System == "ext4") |
| wiped = Wipe_EXT4(); |
| else if (New_File_System == "ext2" || New_File_System == "ext3") |
| wiped = Wipe_EXT23(New_File_System); |
| else if (New_File_System == "vfat") |
| wiped = Wipe_FAT(); |
| else if (New_File_System == "exfat") |
| wiped = Wipe_EXFAT(); |
| else if (New_File_System == "yaffs2") |
| wiped = Wipe_MTD(); |
| else { |
| LOGE("Unable to wipe '%s' -- unknown file system '%s'\n", Mount_Point.c_str(), New_File_System.c_str()); |
| unlink("/.layout_version"); |
| return false; |
| } |
| update_crypt = wiped; |
| } |
| |
| if (wiped) { |
| #ifdef TW_INCLUDE_CRYPTO_SAMSUNG |
| if (Mount_Point == "/data" && Mount(false)) { |
| if (TWFunc::Path_Exists("/tmp/edk_p_sd")) { |
| Make_Dir("/data/system", true); |
| TWFunc::copy_file("/tmp/edk_p_sd", "/data/system/edk_p_sd", 0600); |
| } |
| } |
| #endif |
| |
| if (Mount_Point == "/cache") |
| DataManager::Output_Version(); |
| |
| if (TWFunc::Path_Exists("/.layout_version") && Mount(false)) |
| TWFunc::copy_file("/.layout_version", Layout_Filename, 0600); |
| |
| if (update_crypt) { |
| Setup_File_System(false); |
| if (Is_Encrypted && !Is_Decrypted) { |
| // just wiped an encrypted partition back to its unencrypted state |
| Is_Encrypted = false; |
| Is_Decrypted = false; |
| Decrypted_Block_Device = ""; |
| if (Mount_Point == "/data") { |
| DataManager::SetValue(TW_IS_ENCRYPTED, 0); |
| DataManager::SetValue(TW_IS_DECRYPTED, 0); |
| } |
| } |
| } |
| } |
| return wiped; |
| } |
| |
| bool TWPartition::Wipe() { |
| if (Is_File_System(Current_File_System)) |
| return Wipe(Current_File_System); |
| else |
| return Wipe(Fstab_File_System); |
| } |
| |
| bool TWPartition::Wipe_AndSec(void) { |
| if (!Has_Android_Secure) |
| return false; |
| |
| if (!Mount(true)) |
| return false; |
| |
| ui_print("Wiping .android_secure\n"); |
| TWFunc::removeDir(Mount_Point + "/.android_secure/", true); |
| return true; |
| } |
| |
| bool TWPartition::Backup(string backup_folder) { |
| if (Backup_Method == FILES) |
| return Backup_Tar(backup_folder); |
| else if (Backup_Method == DD) |
| return Backup_DD(backup_folder); |
| else if (Backup_Method == FLASH_UTILS) |
| return Backup_Dump_Image(backup_folder); |
| LOGE("Unknown backup method for '%s'\n", Mount_Point.c_str()); |
| return false; |
| } |
| |
| bool TWPartition::Check_MD5(string restore_folder) { |
| string Full_Filename; |
| char split_filename[512]; |
| int index = 0; |
| |
| Full_Filename = restore_folder + "/" + Backup_FileName; |
| if (!TWFunc::Path_Exists(Full_Filename)) { |
| // This is a split archive, we presume |
| sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index); |
| while (index < 1000 && TWFunc::Path_Exists(split_filename)) { |
| if (TWFunc::Check_MD5(split_filename) == 0) { |
| LOGE("MD5 failed to match on '%s'.\n", split_filename); |
| return false; |
| } |
| index++; |
| sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index); |
| } |
| return true; |
| } else { |
| // Single file archive |
| if (TWFunc::Check_MD5(Full_Filename) == 0) { |
| LOGE("MD5 failed to match on '%s'.\n", split_filename); |
| return false; |
| } else |
| return true; |
| } |
| return false; |
| } |
| |
| bool TWPartition::Restore(string restore_folder) { |
| size_t first_period, second_period; |
| string Restore_File_System; |
| |
| TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, "Restoring"); |
| LOGI("Restore filename is: %s\n", Backup_FileName.c_str()); |
| |
| // Parse backup filename to extract the file system before wiping |
| first_period = Backup_FileName.find("."); |
| if (first_period == string::npos) { |
| LOGE("Unable to find file system (first period).\n"); |
| return false; |
| } |
| Restore_File_System = Backup_FileName.substr(first_period + 1, Backup_FileName.size() - first_period - 1); |
| second_period = Restore_File_System.find("."); |
| if (second_period == string::npos) { |
| LOGE("Unable to find file system (second period).\n"); |
| return false; |
| } |
| Restore_File_System.resize(second_period); |
| LOGI("Restore file system is: '%s'.\n", Restore_File_System.c_str()); |
| |
| if (Is_File_System(Restore_File_System)) |
| return Restore_Tar(restore_folder, Restore_File_System); |
| else if (Is_Image(Restore_File_System)) { |
| if (Restore_File_System == "emmc") |
| return Restore_DD(restore_folder); |
| else if (Restore_File_System == "mtd" || Restore_File_System == "bml") |
| return Restore_Flash_Image(restore_folder); |
| } |
| |
| LOGE("Unknown restore method for '%s'\n", Mount_Point.c_str()); |
| return false; |
| } |
| |
| string TWPartition::Backup_Method_By_Name() { |
| if (Backup_Method == NONE) |
| return "none"; |
| else if (Backup_Method == FILES) |
| return "files"; |
| else if (Backup_Method == DD) |
| return "dd"; |
| else if (Backup_Method == FLASH_UTILS) |
| return "flash_utils"; |
| else |
| return "undefined"; |
| return "ERROR!"; |
| } |
| |
| bool TWPartition::Decrypt(string Password) { |
| LOGI("STUB TWPartition::Decrypt, password: '%s'\n", Password.c_str()); |
| // Is this needed? |
| return 1; |
| } |
| |
| bool TWPartition::Wipe_Encryption() { |
| bool Save_Data_Media = Has_Data_Media; |
| |
| if (!UnMount(true)) |
| return false; |
| |
| Has_Data_Media = false; |
| if (Wipe(Fstab_File_System)) { |
| Has_Data_Media = Save_Data_Media; |
| if (Has_Data_Media && !Symlink_Mount_Point.empty()) { |
| Recreate_Media_Folder(); |
| } |
| ui_print("You may need to reboot recovery to be able to use /data again.\n"); |
| return true; |
| } else { |
| Has_Data_Media = Save_Data_Media; |
| LOGE("Unable to format to remove encryption.\n"); |
| return false; |
| } |
| return false; |
| } |
| |
| void TWPartition::Check_FS_Type() { |
| string blkCommand, result; |
| string blkOutput; |
| char* blk; |
| char* arg; |
| char* ptr; |
| int type_found = 0; |
| |
| if (Fstab_File_System == "yaffs2" || Fstab_File_System == "mtd" || Fstab_File_System == "bml" || Ignore_Blkid) |
| return; // Running blkid on some mtd devices causes a massive crash or needs to be skipped |
| |
| Find_Actual_Block_Device(); |
| if (!Is_Present) |
| return; |
| |
| blkCommand = "blkid " + Actual_Block_Device; |
| TWFunc::Exec_Cmd(blkCommand, result); |
| std::stringstream line(result); |
| while (getline(line, blkOutput)) |
| { |
| blk = (char*) blkOutput.c_str(); |
| ptr = (char*) blkOutput.c_str(); |
| while (*ptr > 32 && *ptr != ':') ptr++; |
| if (*ptr == 0) continue; |
| *ptr = 0; |
| |
| // Increment by two, but verify that we don't hit a NULL |
| ptr++; |
| if (*ptr != 0) ptr++; |
| |
| // Now, find the TYPE field |
| while (1) |
| { |
| arg = ptr; |
| while (*ptr > 32) ptr++; |
| if (*ptr != 0) { |
| *ptr = 0; |
| ptr++; |
| } |
| |
| if (strlen(arg) > 6) { |
| if (memcmp(arg, "TYPE=\"", 6) == 0) { |
| type_found = 1; |
| break; |
| } |
| } |
| |
| if (*ptr == 0) { |
| arg = NULL; |
| break; |
| } |
| } |
| |
| if (type_found) { |
| arg += 6; // Skip the TYPE=" portion |
| arg[strlen(arg)-1] = '\0'; // Drop the tail quote |
| if (Current_File_System != arg) { |
| LOGI("'%s' was '%s' now set to '%s'\n", Mount_Point.c_str(), Current_File_System.c_str(), arg); |
| Current_File_System = arg; |
| } |
| } else |
| continue; |
| } |
| return; |
| } |
| |
| bool TWPartition::Wipe_EXT23(string File_System) { |
| if (!UnMount(true)) |
| return false; |
| |
| if (TWFunc::Path_Exists("/sbin/mke2fs")) { |
| string command, result; |
| |
| ui_print("Formatting %s using mke2fs...\n", Display_Name.c_str()); |
| Find_Actual_Block_Device(); |
| command = "mke2fs -t " + File_System + " -m 0 " + Actual_Block_Device; |
| LOGI("mke2fs command: %s\n", command.c_str()); |
| if (TWFunc::Exec_Cmd(command, result) == 0) { |
| Current_File_System = File_System; |
| Recreate_AndSec_Folder(); |
| ui_print("Done.\n"); |
| return true; |
| } else { |
| LOGE("Unable to wipe '%s'.\n", Mount_Point.c_str()); |
| return false; |
| } |
| } else |
| return Wipe_RMRF(); |
| |
| return false; |
| } |
| |
| bool TWPartition::Wipe_EXT4() { |
| if (!UnMount(true)) |
| return false; |
| |
| if (TWFunc::Path_Exists("/sbin/make_ext4fs")) { |
| string Command, result; |
| |
| ui_print("Formatting %s using make_ext4fs...\n", Display_Name.c_str()); |
| Find_Actual_Block_Device(); |
| Command = "make_ext4fs"; |
| if (!Is_Decrypted && Length != 0) { |
| // Only use length if we're not decrypted |
| char len[32]; |
| sprintf(len, "%i", Length); |
| Command += " -l "; |
| Command += len; |
| } |
| Command += " " + Actual_Block_Device; |
| LOGI("make_ext4fs command: %s\n", Command.c_str()); |
| if (TWFunc::Exec_Cmd(Command, result) == 0) { |
| Current_File_System = "ext4"; |
| Recreate_AndSec_Folder(); |
| ui_print("Done.\n"); |
| return true; |
| } else { |
| LOGE("Unable to wipe '%s'.\n", Mount_Point.c_str()); |
| return false; |
| } |
| } else |
| return Wipe_EXT23("ext4"); |
| |
| return false; |
| } |
| |
| bool TWPartition::Wipe_FAT() { |
| string command, result; |
| |
| if (TWFunc::Path_Exists("/sbin/mkdosfs")) { |
| if (!UnMount(true)) |
| return false; |
| |
| ui_print("Formatting %s using mkdosfs...\n", Display_Name.c_str()); |
| Find_Actual_Block_Device(); |
| command = "mkdosfs " + Actual_Block_Device; |
| if (TWFunc::Exec_Cmd(command, result) == 0) { |
| Current_File_System = "vfat"; |
| Recreate_AndSec_Folder(); |
| ui_print("Done.\n"); |
| return true; |
| } else { |
| LOGE("Unable to wipe '%s'.\n", Mount_Point.c_str()); |
| return false; |
| } |
| return true; |
| } |
| else |
| return Wipe_RMRF(); |
| |
| return false; |
| } |
| |
| bool TWPartition::Wipe_EXFAT() { |
| string command, result; |
| |
| if (TWFunc::Path_Exists("/sbin/mkexfatfs")) { |
| if (!UnMount(true)) |
| return false; |
| |
| ui_print("Formatting %s using mkexfatfs...\n", Display_Name.c_str()); |
| Find_Actual_Block_Device(); |
| command = "mkexfatfs " + Actual_Block_Device; |
| if (TWFunc::Exec_Cmd(command, result) == 0) { |
| Recreate_AndSec_Folder(); |
| ui_print("Done.\n"); |
| return true; |
| } else { |
| LOGE("Unable to wipe '%s'.\n", Mount_Point.c_str()); |
| return false; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| bool TWPartition::Wipe_MTD() { |
| if (!UnMount(true)) |
| return false; |
| |
| ui_print("MTD Formatting \"%s\"\n", MTD_Name.c_str()); |
| |
| mtd_scan_partitions(); |
| const MtdPartition* mtd = mtd_find_partition_by_name(MTD_Name.c_str()); |
| if (mtd == NULL) { |
| LOGE("No mtd partition named '%s'", MTD_Name.c_str()); |
| return false; |
| } |
| |
| MtdWriteContext* ctx = mtd_write_partition(mtd); |
| if (ctx == NULL) { |
| LOGE("Can't write '%s', failed to format.", MTD_Name.c_str()); |
| return false; |
| } |
| if (mtd_erase_blocks(ctx, -1) == -1) { |
| mtd_write_close(ctx); |
| LOGE("Failed to format '%s'", MTD_Name.c_str()); |
| return false; |
| } |
| if (mtd_write_close(ctx) != 0) { |
| LOGE("Failed to close '%s'", MTD_Name.c_str()); |
| return false; |
| } |
| Current_File_System = "yaffs2"; |
| Recreate_AndSec_Folder(); |
| ui_print("Done.\n"); |
| return true; |
| } |
| |
| bool TWPartition::Wipe_RMRF() { |
| if (!Mount(true)) |
| return false; |
| |
| ui_print("Removing all files under '%s'\n", Mount_Point.c_str()); |
| TWFunc::removeDir(Mount_Point, true); |
| Recreate_AndSec_Folder(); |
| return true; |
| } |
| |
| bool TWPartition::Wipe_Data_Without_Wiping_Media() { |
| string dir; |
| |
| // This handles wiping data on devices with "sdcard" in /data/media |
| if (!Mount(true)) |
| return false; |
| |
| ui_print("Wiping data without wiping /data/media ...\n"); |
| |
| DIR* d; |
| d = opendir("/data"); |
| if (d != NULL) { |
| struct dirent* de; |
| while ((de = readdir(d)) != NULL) { |
| if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue; |
| // The media folder is the "internal sdcard" |
| // The .layout_version file is responsible for determining whether 4.2 decides up upgrade |
| // the media folder for multi-user. |
| if (strcmp(de->d_name, "media") == 0 || strcmp(de->d_name, ".layout_version") == 0) continue; |
| |
| dir = "/data/"; |
| dir.append(de->d_name); |
| if (de->d_type == DT_DIR) { |
| TWFunc::removeDir(dir, false); |
| } else if (de->d_type == DT_REG || de->d_type == DT_LNK || de->d_type == DT_FIFO || de->d_type == DT_SOCK) { |
| if (!unlink(dir.c_str())) |
| LOGI("Unable to unlink '%s'\n", dir.c_str()); |
| } |
| } |
| closedir(d); |
| ui_print("Done.\n"); |
| return true; |
| } |
| ui_print("Dirent failed to open /data, error!\n"); |
| return false; |
| } |
| |
| bool TWPartition::Backup_Tar(string backup_folder) { |
| char back_name[255], split_index[5]; |
| string Full_FileName, Split_FileName, Tar_Args, Command; |
| int use_compression, index, backup_count; |
| struct stat st; |
| unsigned long long total_bsize = 0, file_size; |
| twrpTar tar; |
| vector <string> files; |
| |
| if (!Mount(true)) |
| return false; |
| |
| if (Backup_Path == "/and-sec") { |
| TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, "Android Secure", "Backing Up"); |
| ui_print("Backing up %s...\n", "Android Secure"); |
| } else { |
| TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, "Backing Up"); |
| ui_print("Backing up %s...\n", Display_Name.c_str()); |
| } |
| |
| DataManager::GetValue(TW_USE_COMPRESSION_VAR, use_compression); |
| |
| sprintf(back_name, "%s.%s.win", Backup_Name.c_str(), Current_File_System.c_str()); |
| Backup_FileName = back_name; |
| Full_FileName = backup_folder + "/" + Backup_FileName; |
| if (Backup_Size > MAX_ARCHIVE_SIZE) { |
| // This backup needs to be split into multiple archives |
| ui_print("Breaking backup file into multiple archives...\n"); |
| sprintf(back_name, "%s", Backup_Path.c_str()); |
| tar.setdir(back_name); |
| tar.setfn(Full_FileName); |
| backup_count = tar.splitArchiveThread(); |
| if (backup_count == -1) { |
| LOGE("Error tarring split files!\n"); |
| return false; |
| } |
| return true; |
| } else { |
| Full_FileName = backup_folder + "/" + Backup_FileName; |
| if (use_compression) { |
| tar.setdir(Backup_Path); |
| tar.setfn(Full_FileName); |
| if (tar.createTarGZThread() != 0) |
| return -1; |
| string gzname = Full_FileName + ".gz"; |
| rename(gzname.c_str(), Full_FileName.c_str()); |
| } |
| else { |
| tar.setdir(Backup_Path); |
| tar.setfn(Full_FileName); |
| if (tar.createTarThread() != 0) |
| return -1; |
| } |
| if (TWFunc::Get_File_Size(Full_FileName) == 0) { |
| LOGE("Backup file size for '%s' is 0 bytes.\n", Full_FileName.c_str()); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool TWPartition::Backup_DD(string backup_folder) { |
| char back_name[255]; |
| string Full_FileName, Command, result; |
| int use_compression; |
| |
| TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, "Backing Up"); |
| ui_print("Backing up %s...\n", Display_Name.c_str()); |
| |
| sprintf(back_name, "%s.%s.win", Backup_Name.c_str(), Current_File_System.c_str()); |
| Backup_FileName = back_name; |
| |
| Full_FileName = backup_folder + "/" + Backup_FileName; |
| |
| Command = "dd if=" + Actual_Block_Device + " of='" + Full_FileName + "'"; |
| LOGI("Backup command: '%s'\n", Command.c_str()); |
| TWFunc::Exec_Cmd(Command, result); |
| if (TWFunc::Get_File_Size(Full_FileName) == 0) { |
| LOGE("Backup file size for '%s' is 0 bytes.\n", Full_FileName.c_str()); |
| return false; |
| } |
| return true; |
| } |
| |
| bool TWPartition::Backup_Dump_Image(string backup_folder) { |
| char back_name[255]; |
| string Full_FileName, Command, result; |
| int use_compression; |
| |
| TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, "Backing Up"); |
| ui_print("Backing up %s...\n", Display_Name.c_str()); |
| |
| sprintf(back_name, "%s.%s.win", Backup_Name.c_str(), Current_File_System.c_str()); |
| Backup_FileName = back_name; |
| |
| Full_FileName = backup_folder + "/" + Backup_FileName; |
| |
| Command = "dump_image " + MTD_Name + " '" + Full_FileName + "'"; |
| LOGI("Backup command: '%s'\n", Command.c_str()); |
| TWFunc::Exec_Cmd(Command, result); |
| if (TWFunc::Get_File_Size(Full_FileName) == 0) { |
| // Actual size may not match backup size due to bad blocks on MTD devices so just check for 0 bytes |
| LOGE("Backup file size for '%s' is 0 bytes.\n", Full_FileName.c_str()); |
| return false; |
| } |
| return true; |
| } |
| |
| bool TWPartition::Restore_Tar(string restore_folder, string Restore_File_System) { |
| string Full_FileName, Command; |
| int index = 0; |
| char split_index[5]; |
| |
| if (Has_Android_Secure) { |
| ui_print("Wiping android secure...\n"); |
| if (!Wipe_AndSec()) |
| return false; |
| } else { |
| ui_print("Wiping %s...\n", Display_Name.c_str()); |
| if (!Wipe(Restore_File_System)) |
| return false; |
| } |
| |
| if (!Mount(true)) |
| return false; |
| |
| TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, "Restoring"); |
| ui_print("Restoring %s...\n", Display_Name.c_str()); |
| Full_FileName = restore_folder + "/" + Backup_FileName; |
| if (!TWFunc::Path_Exists(Full_FileName)) { |
| if (!TWFunc::Path_Exists(Full_FileName)) { |
| // Backup is multiple archives |
| LOGI("Backup is multiple archives.\n"); |
| sprintf(split_index, "%03i", index); |
| Full_FileName = restore_folder + "/" + Backup_FileName + split_index; |
| while (TWFunc::Path_Exists(Full_FileName)) { |
| index++; |
| ui_print("Restoring archive %i...\n", index); |
| LOGI("Restoring '%s'...\n", Full_FileName.c_str()); |
| twrpTar tar; |
| tar.setdir("/"); |
| tar.setfn(Full_FileName); |
| if (tar.extractTarThread() != 0) |
| return false; |
| sprintf(split_index, "%03i", index); |
| Full_FileName = restore_folder + "/" + Backup_FileName + split_index; |
| } |
| if (index == 0) { |
| LOGE("Error locating restore file: '%s'\n", Full_FileName.c_str()); |
| return false; |
| } |
| } |
| } else { |
| twrpTar tar; |
| tar.setdir(Backup_Path); |
| tar.setfn(Full_FileName); |
| if (tar.extractTarThread() != 0) |
| return false; |
| } |
| return true; |
| } |
| |
| bool TWPartition::Restore_DD(string restore_folder) { |
| string Full_FileName, Command, result; |
| |
| TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, "Restoring"); |
| Full_FileName = restore_folder + "/" + Backup_FileName; |
| |
| if (!Find_Partition_Size()) { |
| LOGE("Unable to find partition size for '%s'\n", Mount_Point.c_str()); |
| return false; |
| } |
| unsigned long long backup_size = TWFunc::Get_File_Size(Full_FileName); |
| if (backup_size > Size) { |
| LOGE("Size (%iMB) of backup '%s' is larger than target device '%s' (%iMB)\n", |
| (int)(backup_size / 1048576LLU), Full_FileName.c_str(), |
| Actual_Block_Device.c_str(), (int)(Size / 1048576LLU)); |
| return false; |
| } |
| |
| ui_print("Restoring %s...\n", Display_Name.c_str()); |
| Command = "dd bs=4096 if='" + Full_FileName + "' of=" + Actual_Block_Device; |
| LOGI("Restore command: '%s'\n", Command.c_str()); |
| TWFunc::Exec_Cmd(Command, result); |
| return true; |
| } |
| |
| bool TWPartition::Restore_Flash_Image(string restore_folder) { |
| string Full_FileName, Command, result; |
| |
| ui_print("Restoring %s...\n", Display_Name.c_str()); |
| Full_FileName = restore_folder + "/" + Backup_FileName; |
| // Sometimes flash image doesn't like to flash due to the first 2KB matching, so we erase first to ensure that it flashes |
| Command = "erase_image " + MTD_Name; |
| LOGI("Erase command: '%s'\n", Command.c_str()); |
| TWFunc::Exec_Cmd(Command, result); |
| Command = "flash_image " + MTD_Name + " '" + Full_FileName + "'"; |
| LOGI("Restore command: '%s'\n", Command.c_str()); |
| TWFunc::Exec_Cmd(Command, result); |
| return true; |
| } |
| |
| bool TWPartition::Update_Size(bool Display_Error) { |
| bool ret = false, Was_Already_Mounted = false; |
| |
| if (!Can_Be_Mounted && !Is_Encrypted) |
| return false; |
| |
| Was_Already_Mounted = Is_Mounted(); |
| if (Removable || Is_Encrypted) { |
| if (!Mount(false)) |
| return true; |
| } else if (!Mount(Display_Error)) |
| return false; |
| |
| ret = Get_Size_Via_statfs(Display_Error); |
| if (!ret || Size == 0) { |
| if (!Get_Size_Via_df(Display_Error)) { |
| if (!Was_Already_Mounted) |
| UnMount(false); |
| return false; |
| } |
| } |
| |
| if (Has_Data_Media) { |
| if (Mount(Display_Error)) { |
| unsigned long long data_media_used, actual_data; |
| Used = TWFunc::Get_Folder_Size("/data", Display_Error); |
| data_media_used = TWFunc::Get_Folder_Size("/data/media", Display_Error); |
| actual_data = Used - data_media_used; |
| Backup_Size = actual_data; |
| int bak = (int)(Backup_Size / 1048576LLU); |
| int total = (int)(Size / 1048576LLU); |
| int us = (int)(Used / 1048576LLU); |
| int fre = (int)(Free / 1048576LLU); |
| int datmed = (int)(data_media_used / 1048576LLU); |
| LOGI("Data backup size is %iMB, size: %iMB, used: %iMB, free: %iMB, in data/media: %iMB.\n", bak, total, us, fre, datmed); |
| } else { |
| if (!Was_Already_Mounted) |
| UnMount(false); |
| return false; |
| } |
| } else if (Has_Android_Secure) { |
| if (Mount(Display_Error)) |
| Backup_Size = TWFunc::Get_Folder_Size(Backup_Path, Display_Error); |
| else { |
| if (!Was_Already_Mounted) |
| UnMount(false); |
| return false; |
| } |
| } |
| if (!Was_Already_Mounted) |
| UnMount(false); |
| return true; |
| } |
| |
| void TWPartition::Find_Actual_Block_Device(void) { |
| if (Is_Decrypted) { |
| Actual_Block_Device = Decrypted_Block_Device; |
| if (TWFunc::Path_Exists(Primary_Block_Device)) |
| Is_Present = true; |
| } else if (TWFunc::Path_Exists(Primary_Block_Device)) { |
| Is_Present = true; |
| Actual_Block_Device = Primary_Block_Device; |
| return; |
| } |
| if (Is_Decrypted) { |
| } else if (!Alternate_Block_Device.empty() && TWFunc::Path_Exists(Alternate_Block_Device)) { |
| Actual_Block_Device = Alternate_Block_Device; |
| Is_Present = true; |
| } else { |
| Is_Present = false; |
| } |
| } |
| |
| void TWPartition::Recreate_Media_Folder(void) { |
| string Command; |
| |
| if (!Mount(true)) { |
| LOGE("Unable to recreate /data/media folder.\n"); |
| } else if (!TWFunc::Path_Exists("/data/media")) { |
| PartitionManager.Mount_By_Path(Symlink_Mount_Point, true); |
| LOGI("Recreating /data/media folder.\n"); |
| mkdir("/data/media", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); |
| PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true); |
| } |
| } |
| |
| void TWPartition::Recreate_AndSec_Folder(void) { |
| if (!Has_Android_Secure) |
| return; |
| LOGI("Creating .android_secure: %s\n", Symlink_Path.c_str()); |
| if (!Mount(true)) { |
| LOGE("Unable to recreate android secure folder.\n"); |
| } else if (!TWFunc::Path_Exists(Symlink_Path)) { |
| LOGI("Recreating android secure folder.\n"); |
| PartitionManager.Mount_By_Path(Symlink_Mount_Point, true); |
| mkdir(Symlink_Path.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); |
| PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true); |
| } |
| } |