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Dees Troy3be70a82013-10-22 14:25:12 +00001/*
bigbiffaed1bdf2021-08-03 18:21:39 -04002 Copyright 2013 to 2021 TeamWin
Dees Troy3be70a82013-10-22 14:25:12 +00003 This file is part of TWRP/TeamWin Recovery Project.
4
5 TWRP is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
9
10 TWRP is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with TWRP. If not, see <http://www.gnu.org/licenses/>.
17*/
Dees_Troy51a0e822012-09-05 15:24:24 -040018
19#include <stdio.h>
20#include <stdlib.h>
21#include <string.h>
bigbiff7ba75002020-04-11 20:47:09 -040022
Dees_Troy5bf43922012-09-07 16:07:55 -040023#include <sys/mount.h>
bigbiff7ba75002020-04-11 20:47:09 -040024#include <sys/param.h>
25#include <sys/stat.h>
26#include <sys/types.h>
27#include <sys/vfs.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040028#include <unistd.h>
Dees_Troy51127312012-09-08 13:08:49 -040029#include <dirent.h>
Ethan Yonker472f5062016-02-25 13:47:30 -060030#include <fcntl.h>
bigbiff7ba75002020-04-11 20:47:09 -040031#include <iostream>
32#include <libgen.h>
bigbiff7ba75002020-04-11 20:47:09 -040033#include <zlib.h>
34#include <sstream>
bigbiffcfa875c2021-06-20 16:20:27 -040035#include <android-base/properties.h>
Darth9cc683e72022-08-09 12:54:40 +010036#include <android-base/strings.h>
bigbiffcfa875c2021-06-20 16:20:27 -040037#include <libsnapshot/snapshot.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040038
Ethan Yonker007de982018-08-31 14:23:16 -050039#include "cutils/properties.h"
bigbiff7b4c7a62015-01-01 19:44:14 -050040#include "libblkid/include/blkid.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040041#include "variables.h"
Dees_Troy2673cec2013-04-02 20:22:16 +000042#include "twcommon.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040043#include "partitions.hpp"
Dees_Troy5bf43922012-09-07 16:07:55 -040044#include "data.hpp"
Dees_Troy43d8b002012-09-17 16:00:01 -040045#include "twrp-functions.hpp"
bigbiff bigbiff9c754052013-01-09 09:09:08 -050046#include "twrpTar.hpp"
Ethan Yonker3fdcda42016-11-30 12:29:37 -060047#include "exclude.hpp"
Ethan Yonker1b7a31b2014-07-03 15:09:22 -050048#include "infomanager.hpp"
Ethan Yonker4b94cfd2014-12-11 10:00:45 -060049#include "set_metadata.h"
Ethan Yonker74db1572015-10-28 12:44:49 -050050#include "gui/gui.hpp"
bigbiffce8f83c2015-12-12 18:30:21 -050051#include "adbbu/libtwadbbu.hpp"
Ethan Yonker98661c12018-10-17 08:39:28 -050052#ifdef TW_INCLUDE_CRYPTO
bigbiffdf53b6c2022-01-17 19:31:52 -050053 // #include "crypto/fde/cryptfs.h"
54 #include "cryptfs.h"
bigbiffa957f072021-03-07 18:20:29 -050055 #include "Decrypt.h"
Ethan Yonker98661c12018-10-17 08:39:28 -050056#endif
Dees_Troy5bf43922012-09-07 16:07:55 -040057extern "C" {
Dees_Troy38bd7602012-09-14 13:33:53 -040058 #include "mtdutils/mtdutils.h"
59 #include "mtdutils/mounts.h"
Dees_Troya95f55c2013-08-17 13:14:43 +000060#ifdef USE_EXT4
Ethan Yonker8373cfe2017-09-08 06:50:54 -050061 // #include "make_ext4fs.h" TODO need ifdef for android8
62 #include <ext4_utils/make_ext4fs.h>
Dees_Troya95f55c2013-08-17 13:14:43 +000063#endif
Ethan Yonker71413f42014-02-26 13:36:08 -060064#ifdef TW_INCLUDE_CRYPTO
Ethan Yonker66a19492015-12-10 10:19:45 -060065 #include "gpt/gpt.h"
Ethan Yonker71413f42014-02-26 13:36:08 -060066#endif
Dees_Troy5bf43922012-09-07 16:07:55 -040067}
Matt Mower87413642017-01-17 21:14:46 -060068#include <selinux/selinux.h>
Ethan Yonkerf27497f2014-02-09 11:48:33 -060069#include <selinux/label.h>
Dees Troy4159aed2014-02-28 17:24:43 +000070#ifdef HAVE_CAPABILITIES
71#include <sys/capability.h>
72#include <sys/xattr.h>
73#include <linux/xattr.h>
74#endif
HashBanged974bb2016-01-30 14:20:09 -050075#include <sparse_format.h>
Ethan Yonker472f5062016-02-25 13:47:30 -060076#include "progresstracking.hpp"
Dees_Troy51a0e822012-09-05 15:24:24 -040077
bigbiffdf53b6c2022-01-17 19:31:52 -050078#define CRYPT_FOOTER_OFFSET 0x4000
79
bigbiff bigbiff9c754052013-01-09 09:09:08 -050080using namespace std;
81
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060082static int auto_index = 0; // v2 fstab allows you to specify a mount point of "auto" with no /. These items are given a mount point of /auto* where * == auto_index
83
Dees_Troya95f55c2013-08-17 13:14:43 +000084extern struct selabel_handle *selinux_handle;
Ethan Yonker6277c792014-09-15 14:54:30 -050085extern bool datamedia;
Dees_Troya95f55c2013-08-17 13:14:43 +000086
Hashcode62bd9e02013-11-19 21:59:42 -080087struct flag_list {
88 const char *name;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060089 unsigned long flag;
Hashcode62bd9e02013-11-19 21:59:42 -080090};
91
Matt Mower4ab42b12016-04-21 13:52:18 -050092const struct flag_list mount_flags[] = {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060093 { "noatime", MS_NOATIME },
94 { "noexec", MS_NOEXEC },
95 { "nosuid", MS_NOSUID },
96 { "nodev", MS_NODEV },
97 { "nodiratime", MS_NODIRATIME },
98 { "ro", MS_RDONLY },
99 { "rw", 0 },
100 { "remount", MS_REMOUNT },
101 { "bind", MS_BIND },
102 { "rec", MS_REC },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000103#ifdef MS_UNBINDABLE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600104 { "unbindable", MS_UNBINDABLE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000105#endif
106#ifdef MS_PRIVATE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600107 { "private", MS_PRIVATE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000108#endif
109#ifdef MS_SLAVE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600110 { "slave", MS_SLAVE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000111#endif
112#ifdef MS_SHARED
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600113 { "shared", MS_SHARED },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000114#endif
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600115 { "sync", MS_SYNCHRONOUS },
116 { 0, 0 },
117};
118
119const char *ignored_mount_items[] = {
120 "defaults=",
121 "errors=",
Ethan Yonker93382822018-11-01 15:25:31 -0500122 "latemount",
123 "sysfs_path=",
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600124 NULL
Hashcode62bd9e02013-11-19 21:59:42 -0800125};
126
Matt Mower2416a502016-04-12 19:54:46 -0500127enum TW_FSTAB_FLAGS {
128 TWFLAG_DEFAULTS, // Retain position
129 TWFLAG_ANDSEC,
130 TWFLAG_BACKUP,
131 TWFLAG_BACKUPNAME,
132 TWFLAG_BLOCKSIZE,
133 TWFLAG_CANBEWIPED,
134 TWFLAG_CANENCRYPTBACKUP,
135 TWFLAG_DISPLAY,
136 TWFLAG_ENCRYPTABLE,
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500137 TWFLAG_FILEENCRYPTION,
Captain Throwbackf74fe4f2022-02-08 12:45:01 -0500138 TWFLAG_METADATA_ENCRYPTION,
Matt Mower2416a502016-04-12 19:54:46 -0500139 TWFLAG_FLASHIMG,
140 TWFLAG_FORCEENCRYPT,
141 TWFLAG_FSFLAGS,
142 TWFLAG_IGNOREBLKID,
143 TWFLAG_LENGTH,
144 TWFLAG_MOUNTTODECRYPT,
Captain Throwback8d97d422022-02-08 15:31:44 -0500145 TWFLAG_QUOTA,
Matt Mower2416a502016-04-12 19:54:46 -0500146 TWFLAG_REMOVABLE,
Matt Mower2416a502016-04-12 19:54:46 -0500147 TWFLAG_SETTINGSSTORAGE,
148 TWFLAG_STORAGE,
149 TWFLAG_STORAGENAME,
150 TWFLAG_SUBPARTITIONOF,
151 TWFLAG_SYMLINK,
152 TWFLAG_USERDATAENCRYPTBACKUP,
153 TWFLAG_USERMRF,
154 TWFLAG_WIPEDURINGFACTORYRESET,
155 TWFLAG_WIPEINGUI,
Ethan Yonker1b190162016-12-05 15:25:19 -0600156 TWFLAG_SLOTSELECT,
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600157 TWFLAG_WAIT,
158 TWFLAG_VERIFY,
159 TWFLAG_CHECK,
160 TWFLAG_ALTDEVICE,
161 TWFLAG_NOTRIM,
162 TWFLAG_VOLDMANAGED,
163 TWFLAG_FORMATTABLE,
164 TWFLAG_RESIZE,
Ethan Yonker93382822018-11-01 15:25:31 -0500165 TWFLAG_KEYDIRECTORY,
Peter Cai28ea7b02019-05-24 11:38:54 +0800166 TWFLAG_WRAPPEDKEY,
Peter Cai439d60c2019-10-17 08:49:10 +0800167 TWFLAG_ADOPTED_MOUNT_DELAY,
Peter Caid68e6412019-11-02 19:22:38 +0800168 TWFLAG_DM_USE_ORIGINAL_PATH,
bigbiff998f8392021-08-06 19:19:33 -0400169 TWFLAG_LOGICAL,
Matt Mower2416a502016-04-12 19:54:46 -0500170};
171
172/* Flags without a trailing '=' are considered dual format flags and can be
173 * written as either 'flagname' or 'flagname=', where the character following
174 * the '=' is Y,y,1 for true and false otherwise.
175 */
176const struct flag_list tw_flags[] = {
177 { "andsec", TWFLAG_ANDSEC },
178 { "backup", TWFLAG_BACKUP },
179 { "backupname=", TWFLAG_BACKUPNAME },
180 { "blocksize=", TWFLAG_BLOCKSIZE },
181 { "canbewiped", TWFLAG_CANBEWIPED },
182 { "canencryptbackup", TWFLAG_CANENCRYPTBACKUP },
183 { "defaults", TWFLAG_DEFAULTS },
184 { "display=", TWFLAG_DISPLAY },
185 { "encryptable=", TWFLAG_ENCRYPTABLE },
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500186 { "fileencryption=", TWFLAG_FILEENCRYPTION },
Captain Throwbackf74fe4f2022-02-08 12:45:01 -0500187 { "metadata_encryption=", TWFLAG_METADATA_ENCRYPTION },
Matt Mower2416a502016-04-12 19:54:46 -0500188 { "flashimg", TWFLAG_FLASHIMG },
189 { "forceencrypt=", TWFLAG_FORCEENCRYPT },
190 { "fsflags=", TWFLAG_FSFLAGS },
191 { "ignoreblkid", TWFLAG_IGNOREBLKID },
192 { "length=", TWFLAG_LENGTH },
193 { "mounttodecrypt", TWFLAG_MOUNTTODECRYPT },
Captain Throwback8d97d422022-02-08 15:31:44 -0500194 { "quota", TWFLAG_QUOTA },
Matt Mower2416a502016-04-12 19:54:46 -0500195 { "removable", TWFLAG_REMOVABLE },
Matt Mower2416a502016-04-12 19:54:46 -0500196 { "settingsstorage", TWFLAG_SETTINGSSTORAGE },
197 { "storage", TWFLAG_STORAGE },
198 { "storagename=", TWFLAG_STORAGENAME },
199 { "subpartitionof=", TWFLAG_SUBPARTITIONOF },
200 { "symlink=", TWFLAG_SYMLINK },
201 { "userdataencryptbackup", TWFLAG_USERDATAENCRYPTBACKUP },
202 { "usermrf", TWFLAG_USERMRF },
203 { "wipeduringfactoryreset", TWFLAG_WIPEDURINGFACTORYRESET },
204 { "wipeingui", TWFLAG_WIPEINGUI },
Ethan Yonker1b190162016-12-05 15:25:19 -0600205 { "slotselect", TWFLAG_SLOTSELECT },
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600206 { "wait", TWFLAG_WAIT },
207 { "verify", TWFLAG_VERIFY },
208 { "check", TWFLAG_CHECK },
209 { "altdevice", TWFLAG_ALTDEVICE },
210 { "notrim", TWFLAG_NOTRIM },
211 { "voldmanaged=", TWFLAG_VOLDMANAGED },
212 { "formattable", TWFLAG_FORMATTABLE },
213 { "resize", TWFLAG_RESIZE },
Ethan Yonker93382822018-11-01 15:25:31 -0500214 { "keydirectory=", TWFLAG_KEYDIRECTORY },
Peter Cai28ea7b02019-05-24 11:38:54 +0800215 { "wrappedkey", TWFLAG_WRAPPEDKEY },
Peter Cai439d60c2019-10-17 08:49:10 +0800216 { "adopted_mount_delay=", TWFLAG_ADOPTED_MOUNT_DELAY },
Peter Caid68e6412019-11-02 19:22:38 +0800217 { "dm_use_original_path", TWFLAG_DM_USE_ORIGINAL_PATH },
bigbiff998f8392021-08-06 19:19:33 -0400218 { "logical", TWFLAG_LOGICAL },
Matt Mower2416a502016-04-12 19:54:46 -0500219 { 0, 0 },
220};
221
that9e0593e2014-10-08 00:01:24 +0200222TWPartition::TWPartition() {
Dees_Troy51a0e822012-09-05 15:24:24 -0400223 Can_Be_Mounted = false;
224 Can_Be_Wiped = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500225 Can_Be_Backed_Up = false;
Vojtech Bocek1dc30982013-08-30 21:49:30 +0200226 Use_Rm_Rf = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400227 Wipe_During_Factory_Reset = false;
228 Wipe_Available_in_GUI = false;
229 Is_SubPartition = false;
Dees_Troy2691f9d2012-09-24 11:15:49 -0400230 Has_SubPartition = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400231 SubPartition_Of = "";
232 Symlink_Path = "";
233 Symlink_Mount_Point = "";
234 Mount_Point = "";
Dees_Troye58d5262012-09-21 12:27:57 -0400235 Backup_Path = "";
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600236 Wildcard_Block_Device = false;
237 Sysfs_Entry = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400238 Actual_Block_Device = "";
239 Primary_Block_Device = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400240 Alternate_Block_Device = "";
241 Removable = false;
242 Is_Present = false;
243 Length = 0;
244 Size = 0;
245 Used = 0;
246 Free = 0;
247 Backup_Size = 0;
248 Can_Be_Encrypted = false;
249 Is_Encrypted = false;
250 Is_Decrypted = false;
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600251 Is_FBE = false;
Ethan Yonker253368a2014-11-25 15:00:52 -0600252 Mount_To_Decrypt = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400253 Decrypted_Block_Device = "";
254 Display_Name = "";
Dees_Troya13d74f2013-03-24 08:54:55 -0500255 Backup_Display_Name = "";
256 Storage_Name = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400257 Backup_Name = "";
Dees_Troy63c8df72012-09-10 14:02:05 -0400258 Backup_FileName = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400259 MTD_Name = "";
bigbiffce8f83c2015-12-12 18:30:21 -0500260 Backup_Method = BM_NONE;
Dees_Troy83bd4832013-05-04 12:39:56 +0000261 Can_Encrypt_Backup = false;
262 Use_Userdata_Encryption = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400263 Has_Data_Media = false;
Dees_Troye58d5262012-09-21 12:27:57 -0400264 Has_Android_Secure = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400265 Is_Storage = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500266 Is_Settings_Storage = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400267 Storage_Path = "";
268 Current_File_System = "";
269 Fstab_File_System = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800270 Mount_Flags = 0;
271 Mount_Options = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400272 Format_Block_Size = 0;
Dees_Troy68cab492012-12-12 19:29:35 +0000273 Ignore_Blkid = false;
dianlujitao4879b372018-12-03 18:45:47 +0800274 Crypto_Key_Location = "";
Ethan Yonker726a0202014-12-16 20:01:38 -0600275 MTP_Storage_ID = 0;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600276 Can_Flash_Img = false;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500277 Mount_Read_Only = false;
Ethan Yonker66a19492015-12-10 10:19:45 -0600278 Is_Adopted_Storage = false;
279 Adopted_GUID = "";
Ethan Yonker1b190162016-12-05 15:25:19 -0600280 SlotSelect = false;
Ethan Yonker93382822018-11-01 15:25:31 -0500281 Key_Directory = "";
bigbiffee7b7ff2020-03-23 15:08:27 -0400282 Is_Super = false;
Peter Cai439d60c2019-10-17 08:49:10 +0800283 Adopted_Mount_Delay = 0;
Peter Caid68e6412019-11-02 19:22:38 +0800284 Original_Path = "";
285 Use_Original_Path = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400286}
287
288TWPartition::~TWPartition(void) {
289 // Do nothing
290}
291
bigbiff8da46fa2020-09-08 16:42:34 -0400292bool TWPartition::Process_Fstab_Line(const char *fstab_line, bool Display_Error, std::map<string, Flags_Map> *twrp_flags) {
Matt Mower2b2dd152016-04-26 11:24:08 -0500293 char full_line[MAX_FSTAB_LINE_LENGTH];
Matt Mower2416a502016-04-12 19:54:46 -0500294 char twflags[MAX_FSTAB_LINE_LENGTH] = "";
Dees_Troy5bf43922012-09-07 16:07:55 -0400295 char* ptr;
Matt Mower2b2dd152016-04-26 11:24:08 -0500296 int line_len = strlen(fstab_line), index = 0, item_index = 0;
Dees_Troya13d74f2013-03-24 08:54:55 -0500297 bool skip = false;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600298 int fstab_version = 1, mount_point_index = 0, fs_index = 1, block_device_index = 2;
299 TWPartition *additional_entry = NULL;
300 std::map<string, Flags_Map>::iterator it;
Dees_Troy5bf43922012-09-07 16:07:55 -0400301
Matt Mower2b2dd152016-04-26 11:24:08 -0500302 strlcpy(full_line, fstab_line, sizeof(full_line));
bigbiffee7b7ff2020-03-23 15:08:27 -0400303
Dees_Troy51127312012-09-08 13:08:49 -0400304 for (index = 0; index < line_len; index++) {
Dees_Troya13d74f2013-03-24 08:54:55 -0500305 if (full_line[index] == 34)
306 skip = !skip;
307 if (!skip && full_line[index] <= 32)
Dees_Troy5bf43922012-09-07 16:07:55 -0400308 full_line[index] = '\0';
Dees_Troy5bf43922012-09-07 16:07:55 -0400309 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600310 if (line_len < 10)
311 return false; // There can't possibly be a valid fstab line that is less than 10 chars
bigbiff998f8392021-08-06 19:19:33 -0400312 if (fstab_line[0] == '#')
313 return false; // skip comments
314
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600315 if (strncmp(fstab_line, "/dev/", strlen("/dev/")) == 0 || strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
316 fstab_version = 2;
317 block_device_index = 0;
318 mount_point_index = 1;
319 fs_index = 2;
320 }
321
bigbiff998f8392021-08-06 19:19:33 -0400322 if (fstab_line[0] != '/') {
bigbiffee7b7ff2020-03-23 15:08:27 -0400323 block_device_index = 0;
324 fstab_version = 2;
325 mount_point_index = 1;
326 fs_index = 2;
327 }
328
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600329 index = 0;
Dees_Troy5bf43922012-09-07 16:07:55 -0400330 while (index < line_len) {
331 while (index < line_len && full_line[index] == '\0')
332 index++;
333 if (index >= line_len)
334 continue;
335 ptr = full_line + index;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600336 if (item_index == mount_point_index) {
337 Mount_Point = ptr;
bigbiffee7b7ff2020-03-23 15:08:27 -0400338 if (fstab_version == 2 && Is_Super == false) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600339 additional_entry = PartitionManager.Find_Partition_By_Path(Mount_Point);
bigbiff8da46fa2020-09-08 16:42:34 -0400340 if (additional_entry) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600341 LOGINFO("Found an additional entry for '%s'\n", Mount_Point.c_str());
342 }
343 }
bigbiff8da46fa2020-09-08 16:42:34 -0400344 LOGINFO("Processing '%s'\n", Mount_Point.c_str());
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600345 Backup_Path = Mount_Point;
346 Storage_Path = Mount_Point;
347 Display_Name = ptr + 1;
348 Backup_Display_Name = Display_Name;
349 Storage_Name = Display_Name;
350 item_index++;
351 } else if (item_index == fs_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400352 // File System
353 Fstab_File_System = ptr;
354 Current_File_System = ptr;
355 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600356 } else if (item_index == block_device_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400357 // Primary Block Device
Dees_Troy38bd7602012-09-14 13:33:53 -0400358 if (Fstab_File_System == "mtd" || Fstab_File_System == "yaffs2") {
Dees_Troy094207a2012-09-26 12:00:39 -0400359 MTD_Name = ptr;
360 Find_MTD_Block_Device(MTD_Name);
Dees_Troy5fcd8f92012-10-16 12:22:05 -0400361 } else if (Fstab_File_System == "bml") {
362 if (Mount_Point == "/boot")
363 MTD_Name = "boot";
364 else if (Mount_Point == "/recovery")
365 MTD_Name = "recovery";
366 Primary_Block_Device = ptr;
367 if (*ptr != '/')
Dees_Troy2673cec2013-04-02 20:22:16 +0000368 LOGERR("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");
Dees_Troy38bd7602012-09-14 13:33:53 -0400369 } else {
370 Primary_Block_Device = ptr;
bigbiff998f8392021-08-06 19:19:33 -0400371 if (*ptr == '/')
372 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
Dees_Troy5bf43922012-09-07 16:07:55 -0400373 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400374 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600375 } else if (item_index > 2) {
376 if (fstab_version == 2) {
377 if (item_index == 3) {
378 Process_FS_Flags(ptr);
379 if (additional_entry) {
380 additional_entry->Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
381 return false; // We save the extra fs flags in the other partition entry and by returning false, this entry will be deleted
382 }
383 } else {
384 strlcpy(twflags, ptr, sizeof(twflags));
385 }
386 item_index++;
387 } else if (*ptr == '/') { // v2 fstab does not allow alternate block devices
Dees_Troy5bf43922012-09-07 16:07:55 -0400388 // Alternate Block Device
389 Alternate_Block_Device = ptr;
390 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
391 } else if (strlen(ptr) > 7 && strncmp(ptr, "length=", 7) == 0) {
392 // Partition length
393 ptr += 7;
394 Length = atoi(ptr);
Dees_Troy51127312012-09-08 13:08:49 -0400395 } else if (strlen(ptr) > 6 && strncmp(ptr, "flags=", 6) == 0) {
396 // Custom flags, save for later so that new values aren't overwritten by defaults
397 ptr += 6;
Matt Mower2416a502016-04-12 19:54:46 -0500398 strlcpy(twflags, ptr, sizeof(twflags));
Dees_Troy38bd7602012-09-14 13:33:53 -0400399 } else if (strlen(ptr) == 4 && (strncmp(ptr, "NULL", 4) == 0 || strncmp(ptr, "null", 4) == 0 || strncmp(ptr, "null", 4) == 0)) {
400 // Do nothing
Dees_Troy5bf43922012-09-07 16:07:55 -0400401 } else {
402 // Unhandled data
Matt Mower2b2dd152016-04-26 11:24:08 -0500403 LOGINFO("Unhandled fstab information '%s' in fstab line '%s'\n", ptr, fstab_line);
Dees_Troy5bf43922012-09-07 16:07:55 -0400404 }
405 }
406 while (index < line_len && full_line[index] != '\0')
407 index++;
408 }
409
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600410 // override block devices from the v2 fstab with the ones we read from the twrp.flags file in case they are different
411 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
412 it = twrp_flags->find(Mount_Point);
413 if (it != twrp_flags->end()) {
414 if (!it->second.Primary_Block_Device.empty()) {
415 Primary_Block_Device = it->second.Primary_Block_Device;
416 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
417 }
418 if (!it->second.Alternate_Block_Device.empty()) {
419 Alternate_Block_Device = it->second.Alternate_Block_Device;
420 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
421 }
422 }
423 }
424
425 if (strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
426 Sysfs_Entry = Primary_Block_Device;
427 Primary_Block_Device = "";
428 Is_Storage = true;
429 Removable = true;
430 Wipe_Available_in_GUI = true;
431 Wildcard_Block_Device = true;
432 }
433 if (Primary_Block_Device.find("*") != string::npos)
434 Wildcard_Block_Device = true;
435
bigbiff8da46fa2020-09-08 16:42:34 -0400436 if (Mount_Point == "auto") {
437 Mount_Point = "/auto";
438 char autoi[5];
439 sprintf(autoi, "%i", auto_index);
440 Mount_Point += autoi;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600441 Backup_Path = Mount_Point;
442 Storage_Path = Mount_Point;
dianlujitaob76a73a2020-04-30 20:33:20 +0800443 Backup_Name = Mount_Point.substr(1);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600444 auto_index++;
445 Setup_File_System(Display_Error);
446 Display_Name = "Storage";
447 Backup_Display_Name = Display_Name;
448 Storage_Name = Display_Name;
449 Can_Be_Backed_Up = false;
450 Wipe_Available_in_GUI = true;
451 Is_Storage = true;
452 Removable = true;
453 Wipe_Available_in_GUI = true;
454 } else if (!Is_File_System(Fstab_File_System) && !Is_Image(Fstab_File_System)) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400455 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +0000456 LOGERR("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -0400457 else
Dees_Troy2673cec2013-04-02 20:22:16 +0000458 LOGINFO("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Matt Mower72c87ce2016-04-26 14:34:56 -0500459 return false;
Dees_Troy5bf43922012-09-07 16:07:55 -0400460 } else if (Is_File_System(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400461 Find_Actual_Block_Device();
Dees_Troy5bf43922012-09-07 16:07:55 -0400462 Setup_File_System(Display_Error);
dianlujitaob76a73a2020-04-30 20:33:20 +0800463 Backup_Name = Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
Chaosmaster3b682732020-01-25 21:09:28 +0100464 if (Mount_Point == "/" || Mount_Point == "/system" || Mount_Point == "/system_root") {
bigbiff8da46fa2020-09-08 16:42:34 -0400465 Mount_Point = PartitionManager.Get_Android_Root_Path();
466 Backup_Path = Mount_Point;
467 Storage_Path = Mount_Point;
Dees_Troy5bf43922012-09-07 16:07:55 -0400468 Display_Name = "System";
dianlujitaob76a73a2020-04-30 20:33:20 +0800469 Backup_Name = "system";
Dees_Troya13d74f2013-03-24 08:54:55 -0500470 Backup_Display_Name = Display_Name;
471 Storage_Name = Display_Name;
bigbiff8da46fa2020-09-08 16:42:34 -0400472 Wipe_Available_in_GUI = false;
473 Can_Be_Backed_Up = false;
474 Can_Be_Wiped = false;
bigbiff8da46fa2020-09-08 16:42:34 -0400475 Make_Dir(PartitionManager.Get_Android_Root_Path(), true);
me-cafebabe701e9ab2022-07-29 06:34:45 +0800476 } else if (Mount_Point == "/system_ext") {
477 Display_Name = "System_EXT";
478 Backup_Name = "System_EXT";
479 Backup_Display_Name = Display_Name;
480 Storage_Name = Display_Name;
481 Can_Be_Backed_Up = Wipe_Available_in_GUI = Is_Super ? false : true;
Mohd Faraze3948ec2020-08-14 01:40:59 +0000482 } else if (Mount_Point == "/product") {
483 Display_Name = "Product";
484 Backup_Name = "Product";
485 Backup_Display_Name = Display_Name;
486 Storage_Name = Display_Name;
487 Can_Be_Backed_Up = Wipe_Available_in_GUI = Is_Super ? false : true;
Mohd Faraze3948ec2020-08-14 01:40:59 +0000488 } else if (Mount_Point == "/odm") {
489 Display_Name = "ODM";
490 Backup_Name = "ODM";
491 Backup_Display_Name = Display_Name;
492 Storage_Name = Display_Name;
493 Can_Be_Backed_Up = Wipe_Available_in_GUI = Is_Super ? false : true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400494 } else if (Mount_Point == "/data") {
495 Display_Name = "Data";
Dees_Troya13d74f2013-03-24 08:54:55 -0500496 Backup_Display_Name = Display_Name;
497 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400498 Wipe_Available_in_GUI = true;
Dees_Troy51127312012-09-08 13:08:49 -0400499 Wipe_During_Factory_Reset = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500500 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000501 Can_Encrypt_Backup = true;
502 Use_Userdata_Encryption = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400503 } else if (Mount_Point == "/cache") {
504 Display_Name = "Cache";
Dees_Troya13d74f2013-03-24 08:54:55 -0500505 Backup_Display_Name = Display_Name;
506 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400507 Wipe_Available_in_GUI = true;
Dees_Troy51127312012-09-08 13:08:49 -0400508 Wipe_During_Factory_Reset = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500509 Can_Be_Backed_Up = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400510 } else if (Mount_Point == "/datadata") {
Dees_Troy51127312012-09-08 13:08:49 -0400511 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400512 Display_Name = "DataData";
Dees_Troya13d74f2013-03-24 08:54:55 -0500513 Backup_Display_Name = Display_Name;
514 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400515 Is_SubPartition = true;
516 SubPartition_Of = "/data";
Dees_Troy5bf43922012-09-07 16:07:55 -0400517 DataManager::SetValue(TW_HAS_DATADATA, 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500518 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000519 Can_Encrypt_Backup = true;
520 Use_Userdata_Encryption = false; // This whole partition should be encrypted
Dees_Troy5bf43922012-09-07 16:07:55 -0400521 } else if (Mount_Point == "/sd-ext") {
Dees_Troy51127312012-09-08 13:08:49 -0400522 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400523 Display_Name = "SD-Ext";
Dees_Troya13d74f2013-03-24 08:54:55 -0500524 Backup_Display_Name = Display_Name;
525 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400526 Wipe_Available_in_GUI = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400527 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500528 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000529 Can_Encrypt_Backup = true;
530 Use_Userdata_Encryption = true;
Dees_Troy2c50e182012-09-26 20:05:28 -0400531 } else if (Mount_Point == "/boot") {
532 Display_Name = "Boot";
Dees_Troya13d74f2013-03-24 08:54:55 -0500533 Backup_Display_Name = Display_Name;
Dees_Troy2c50e182012-09-26 20:05:28 -0400534 DataManager::SetValue("tw_boot_is_mountable", 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500535 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500536 } else if (Mount_Point == "/vendor") {
537 Display_Name = "Vendor";
538 Backup_Display_Name = Display_Name;
539 Storage_Name = Display_Name;
Dees_Troy8170a922012-09-18 15:40:25 -0400540 }
541#ifdef TW_EXTERNAL_STORAGE_PATH
542 if (Mount_Point == EXPAND(TW_EXTERNAL_STORAGE_PATH)) {
543 Is_Storage = true;
544 Storage_Path = EXPAND(TW_EXTERNAL_STORAGE_PATH);
Dees_Troyc51f1f92012-09-20 15:32:13 -0400545 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500546 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400547#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000548 if (Mount_Point == "/sdcard" || Mount_Point == "/external_sd" || Mount_Point == "/external_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400549 Is_Storage = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400550 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500551 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400552#endif
Dees_Troyb05ddee2013-01-28 20:24:50 +0000553 }
Dees_Troy8170a922012-09-18 15:40:25 -0400554#ifdef TW_INTERNAL_STORAGE_PATH
555 if (Mount_Point == EXPAND(TW_INTERNAL_STORAGE_PATH)) {
556 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500557 Is_Settings_Storage = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400558 Storage_Path = EXPAND(TW_INTERNAL_STORAGE_PATH);
Dees_Troya13d74f2013-03-24 08:54:55 -0500559 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400560 }
561#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000562 if (Mount_Point == "/emmc" || Mount_Point == "/internal_sd" || Mount_Point == "/internal_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400563 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500564 Is_Settings_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500565 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400566 }
567#endif
Dees_Troy5bf43922012-09-07 16:07:55 -0400568 } else if (Is_Image(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400569 Find_Actual_Block_Device();
Ethan Yonker1b190162016-12-05 15:25:19 -0600570 Setup_Image();
Dees_Troya13d74f2013-03-24 08:54:55 -0500571 if (Mount_Point == "/boot") {
572 Display_Name = "Boot";
573 Backup_Display_Name = Display_Name;
574 Can_Be_Backed_Up = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600575 Can_Flash_Img = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500576 } else if (Mount_Point == "/recovery") {
577 Display_Name = "Recovery";
578 Backup_Display_Name = Display_Name;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600579 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500580 } else if (Mount_Point == "/system_image") {
581 Display_Name = "System Image";
582 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500583 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500584 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500585 } else if (Mount_Point == "/vendor_image") {
586 Display_Name = "Vendor Image";
587 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500588 Can_Flash_Img = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500589 Can_Be_Backed_Up = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500590 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400591 }
592
Matt Mower2416a502016-04-12 19:54:46 -0500593 // Process TWRP fstab flags
594 if (strlen(twflags) > 0) {
595 string Prev_Display_Name = Display_Name;
596 string Prev_Storage_Name = Storage_Name;
597 string Prev_Backup_Display_Name = Backup_Display_Name;
598 Display_Name = "";
599 Storage_Name = "";
600 Backup_Display_Name = "";
601
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600602 Process_TW_Flags(twflags, (fstab_version == 1), fstab_version);
603 Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
Matt Mower2416a502016-04-12 19:54:46 -0500604
605 bool has_display_name = !Display_Name.empty();
606 bool has_storage_name = !Storage_Name.empty();
607 bool has_backup_name = !Backup_Display_Name.empty();
608 if (!has_display_name) Display_Name = Prev_Display_Name;
609 if (!has_storage_name) Storage_Name = Prev_Storage_Name;
610 if (!has_backup_name) Backup_Display_Name = Prev_Backup_Display_Name;
611
612 if (has_display_name && !has_storage_name)
613 Storage_Name = Display_Name;
614 if (!has_display_name && has_storage_name)
615 Display_Name = Storage_Name;
616 if (has_display_name && !has_backup_name && Backup_Display_Name != "Android Secure")
617 Backup_Display_Name = Display_Name;
618 if (!has_display_name && has_backup_name)
619 Display_Name = Backup_Display_Name;
620 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600621
622 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
623 it = twrp_flags->find(Mount_Point);
624 if (it != twrp_flags->end()) {
625 char twrpflags[MAX_FSTAB_LINE_LENGTH] = "";
626 int skip = 0;
627 string Flags = it->second.Flags;
628 strcpy(twrpflags, Flags.c_str());
629 if (strlen(twrpflags) > strlen("flags=") && strncmp(twrpflags, "flags=", strlen("flags=")) == 0)
630 skip += strlen("flags=");
631 char* flagptr = twrpflags;
632 flagptr += skip;
633 Process_TW_Flags(flagptr, Display_Error, 1); // Forcing the fstab to ver 1 because this data is coming from the /etc/twrp.flags which should be using the TWRP v1 flags format
634 }
635 }
nkk7198fc3992017-12-16 16:26:42 +0200636
637 if (Mount_Point == "/persist" && Can_Be_Mounted) {
638 bool mounted = Is_Mounted();
639 if (mounted || Mount(false)) {
nkk7198fc3992017-12-16 16:26:42 +0200640 TWFunc::Fixup_Time_On_Boot("/persist/time/");
641 if (!mounted)
642 UnMount(false);
643 }
644 }
645
Dees_Troy51127312012-09-08 13:08:49 -0400646 return true;
647}
648
Matt Mower72c87ce2016-04-26 14:34:56 -0500649void TWPartition::Partition_Post_Processing(bool Display_Error) {
650 if (Mount_Point == "/data")
651 Setup_Data_Partition(Display_Error);
652 else if (Mount_Point == "/cache")
653 Setup_Cache_Partition(Display_Error);
654}
655
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600656void TWPartition::ExcludeAll(const string& path) {
657 backup_exclusions.add_absolute_dir(path);
658 wipe_exclusions.add_absolute_dir(path);
659}
660
Matt Mower72c87ce2016-04-26 14:34:56 -0500661void TWPartition::Setup_Data_Partition(bool Display_Error) {
662 if (Mount_Point != "/data")
663 return;
664
665 // Ensure /data is not mounted as tmpfs for qcom hardware decrypt
666 UnMount(false);
667
668#ifdef TW_INCLUDE_CRYPTO
Matt Mower72c87ce2016-04-26 14:34:56 -0500669 Can_Be_Encrypted = true;
670 char crypto_blkdev[255];
671 property_get("ro.crypto.fs_crypto_blkdev", crypto_blkdev, "error");
672 if (strcmp(crypto_blkdev, "error") != 0) {
bigbiff7ba75002020-04-11 20:47:09 -0400673 Set_FBE_Status();
Matt Mower72c87ce2016-04-26 14:34:56 -0500674 Decrypted_Block_Device = crypto_blkdev;
675 LOGINFO("Data already decrypted, new block device: '%s'\n", crypto_blkdev);
bigbiff4fa02b52021-12-30 17:01:44 -0500676 if (datamedia)
677 Setup_Data_Media();
bigbiff7ba75002020-04-11 20:47:09 -0400678 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Matt Mower72c87ce2016-04-26 14:34:56 -0500679 } else if (!Mount(false)) {
680 if (Is_Present) {
me-cafebabeb0aab752022-06-10 01:45:40 +0800681 if (Key_Directory.empty()) {
682 set_partition_data(Use_Original_Path ? Original_Path.c_str() : Actual_Block_Device.c_str(), Crypto_Key_Location.c_str());
683 if (cryptfs_check_footer() == 0) {
684 Is_Encrypted = true;
685 Is_Decrypted = false;
686 Can_Be_Mounted = false;
687 Current_File_System = "emmc";
688 Setup_Image();
689 DataManager::SetValue(TW_CRYPTO_PWTYPE, cryptfs_get_password_type());
690 DataManager::SetValue("tw_crypto_pwtype_0", cryptfs_get_password_type());
691 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
692 DataManager::SetValue("tw_crypto_display", "");
693 if (datamedia)
694 Setup_Data_Media();
695 } else {
696 gui_err("mount_data_footer=Could not mount /data and unable to find crypto footer.");
697 }
698 } else {
699 Is_Encrypted = true;
700 Is_Decrypted = false;
701 if (datamedia)
702 Setup_Data_Media();
703 }
Ethan Yonker93382822018-11-01 15:25:31 -0500704 } else if (Key_Directory.empty()) {
Noah Jacobson81d638d2019-04-28 00:10:07 -0400705 LOGERR("Primary block device '%s' for mount point '%s' is not present!\n",
706 Primary_Block_Device.c_str(), Mount_Point.c_str());
Matt Mower72c87ce2016-04-26 14:34:56 -0500707 }
708 } else {
bigbiff7ba75002020-04-11 20:47:09 -0400709 Set_FBE_Status();
Captain Throwbackacc7f0f2020-12-29 15:54:33 -0500710 int is_device_fbe;
711 DataManager::GetValue(TW_IS_FBE, is_device_fbe);
Captain Throwback8a8e56c2021-10-01 15:12:24 -0400712 char crypto_state[255];
713 property_get("ro.crypto.state", crypto_state, "error");
714 if (!Decrypt_FBE_DE() && strcmp(crypto_state, "error") != 0) {
715 if (is_device_fbe == 1)
716 LOGERR("Unable to decrypt FBE device\n");
717 } else {
718 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
bigbiff4fa02b52021-12-30 17:01:44 -0500719 if (datamedia)
720 Setup_Data_Media();
721
mauronofrio9bf73352019-11-23 22:27:34 +0100722 }
Matt Mower72c87ce2016-04-26 14:34:56 -0500723 }
724 if (datamedia && (!Is_Encrypted || (Is_Encrypted && Is_Decrypted))) {
725 Setup_Data_Media();
bigbiff25d25b92020-06-19 16:07:38 -0400726 Recreate_Media_Folder();
Matt Mower72c87ce2016-04-26 14:34:56 -0500727 }
728#else
729 if (datamedia) {
730 Setup_Data_Media();
731 Recreate_Media_Folder();
732 }
733#endif
734}
735
bigbiff7ba75002020-04-11 20:47:09 -0400736void TWPartition::Set_FBE_Status() {
737 DataManager::SetValue(TW_IS_DECRYPTED, 1);
738 Is_Encrypted = true;
739 Is_Decrypted = true;
bigbiff7ba75002020-04-11 20:47:09 -0400740 if (Key_Directory.empty()) {
741 Is_FBE = false;
742 DataManager::SetValue(TW_IS_FBE, 0);
743 } else {
Captain Throwbackb5af4f82020-12-29 16:01:10 -0500744 LOGINFO("Setup_Data_Partition::Key_Directory::%s\n", Key_Directory.c_str());
bigbiff7ba75002020-04-11 20:47:09 -0400745 Is_FBE = true;
746 DataManager::SetValue(TW_IS_FBE, 1);
747 }
748}
749
Ethan Yonker93382822018-11-01 15:25:31 -0500750bool TWPartition::Decrypt_FBE_DE() {
bigbiff7ba75002020-04-11 20:47:09 -0400751 if (TWFunc::Path_Exists("/data/unencrypted/key/version")) {
Captain Throwback87d73d62020-02-17 16:44:50 -0500752 DataManager::SetValue(TW_IS_FBE, 1);
Captain Throwback37c3aef2021-10-06 11:38:18 -0400753 PartitionManager.Set_Crypto_State();
754 PartitionManager.Set_Crypto_Type("file");
Ethan Yonker93382822018-11-01 15:25:31 -0500755 LOGINFO("File Based Encryption is present\n");
756#ifdef TW_INCLUDE_FBE
Noah Jacobson81d638d2019-04-28 00:10:07 -0400757 Is_FBE = true;
758 ExcludeAll(Mount_Point + "/convert_fbe");
759 ExcludeAll(Mount_Point + "/unencrypted");
760 ExcludeAll(Mount_Point + "/misc/vold/user_keys");
761 ExcludeAll(Mount_Point + "/misc/vold/volume_keys");
762 ExcludeAll(Mount_Point + "/system/gatekeeper.password.key");
763 ExcludeAll(Mount_Point + "/system/gatekeeper.pattern.key");
764 ExcludeAll(Mount_Point + "/system/locksettings.db");
765 ExcludeAll(Mount_Point + "/system/locksettings.db-wal");
766 ExcludeAll(Mount_Point + "/misc/gatekeeper");
767 ExcludeAll(Mount_Point + "/misc/keystore");
768 ExcludeAll(Mount_Point + "/drm/kek.dat");
bigbiffa957f072021-03-07 18:20:29 -0500769 ExcludeAll(Mount_Point + "/system_de/0/spblob"); // contains data needed to decrypt synthetic password
micky3872ec1df42021-10-14 14:53:06 +0200770 ExcludeAll(Mount_Point + "/system/users/0/gatekeeper.password.key");
771 ExcludeAll(Mount_Point + "/system/users/0/gatekeeper.pattern.key");
Noah Jacobson81d638d2019-04-28 00:10:07 -0400772 ExcludeAll(Mount_Point + "/cache");
773 ExcludeAll(Mount_Point + "/per_boot"); // removed each boot by init
bigbiffa15d02f2021-06-29 20:04:54 -0400774 ExcludeAll(Mount_Point + "/gsi"); // cow devices
775
Noah Jacobson81d638d2019-04-28 00:10:07 -0400776 int retry_count = 3;
bigbiffdf53b6c2022-01-17 19:31:52 -0500777 while (!android::keystore::Decrypt_DE() && --retry_count)
Noah Jacobson81d638d2019-04-28 00:10:07 -0400778 usleep(2000);
779 if (retry_count > 0) {
Captain Throwback37c3aef2021-10-06 11:38:18 -0400780 PartitionManager.Set_Crypto_State();
Noah Jacobson81d638d2019-04-28 00:10:07 -0400781 Is_Encrypted = true;
782 Is_Decrypted = false;
783 DataManager::SetValue(TW_IS_ENCRYPTED, 1);
784 string filename;
bigbiffdf53b6c2022-01-17 19:31:52 -0500785 int pwd_type = android::keystore::Get_Password_Type(0, filename);
Noah Jacobson81d638d2019-04-28 00:10:07 -0400786 if (pwd_type < 0) {
787 LOGERR("This TWRP does not have synthetic password decrypt support\n");
788 pwd_type = 0; // default password
Ethan Yonker93382822018-11-01 15:25:31 -0500789 }
Noah Jacobson81d638d2019-04-28 00:10:07 -0400790 PartitionManager.Parse_Users(); // after load_all_de_keys() to parse_users
791 std::vector<users_struct>::iterator iter;
792 std::vector<users_struct>* userList = PartitionManager.Get_Users_List();
793 for (iter = userList->begin(); iter != userList->end(); iter++) {
794 if (atoi((*iter).userId.c_str()) != 0) {
795 ExcludeAll(Mount_Point + "/system_de/" + (*iter).userId + "/spblob");
796 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/gatekeeper.password.key");
797 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/gatekeeper.pattern.key");
798 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/locksettings.db");
799 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/locksettings.db-wal");
800 }
801 }
802 DataManager::SetValue(TW_CRYPTO_PWTYPE, pwd_type);
803 DataManager::SetValue("tw_crypto_pwtype_0", pwd_type);
804 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
805 DataManager::SetValue("tw_crypto_display", "");
806 return true;
807 }
Ethan Yonker93382822018-11-01 15:25:31 -0500808#else
809 LOGERR("FBE found but FBE support not present in TWRP\n");
810#endif
811 }
Captain Throwback87d73d62020-02-17 16:44:50 -0500812 DataManager::SetValue(TW_IS_FBE, 0);
Ethan Yonker93382822018-11-01 15:25:31 -0500813 return false;
814}
815
Matt Mower72c87ce2016-04-26 14:34:56 -0500816void TWPartition::Setup_Cache_Partition(bool Display_Error __unused) {
817 if (Mount_Point != "/cache")
818 return;
819
820 if (!Mount(true))
821 return;
822
823 if (!TWFunc::Path_Exists("/cache/recovery/.")) {
824 LOGINFO("Recreating /cache/recovery folder\n");
825 if (mkdir("/cache/recovery", S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP) != 0)
826 LOGERR("Could not create /cache/recovery\n");
827 }
828}
829
Matt Mower4ab42b12016-04-21 13:52:18 -0500830void TWPartition::Process_FS_Flags(const char *str) {
831 char *options = strdup(str);
832 char *ptr, *savep;
Hashcode62bd9e02013-11-19 21:59:42 -0800833
Matt Mower4ab42b12016-04-21 13:52:18 -0500834 Mount_Options = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800835
Matt Mower4ab42b12016-04-21 13:52:18 -0500836 // Avoid issues with potentially nested strtok by using strtok_r
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600837 for (ptr = strtok_r(options, ",", &savep); ptr; ptr = strtok_r(NULL, ",", &savep)) {
838 char *equals = strstr(ptr, "=");
839 size_t name_len;
Matt Mower4ab42b12016-04-21 13:52:18 -0500840
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600841 if (!equals)
842 name_len = strlen(ptr);
843 else
844 name_len = equals - ptr;
845
846 // There are some flags that we want to ignore in TWRP
847 bool found_match = false;
848 for (const char** ignored_mount_item = ignored_mount_items; *ignored_mount_item; ignored_mount_item++) {
849 if (strncmp(ptr, *ignored_mount_item, name_len) == 0) {
850 found_match = true;
Hashcode62bd9e02013-11-19 21:59:42 -0800851 break;
852 }
853 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600854 if (found_match)
855 continue;
Hashcode62bd9e02013-11-19 21:59:42 -0800856
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600857 // mount_flags are never postfixed by '='
858 if (!equals) {
859 const struct flag_list* mount_flag = mount_flags;
860 for (; mount_flag->name; mount_flag++) {
861 if (strcmp(ptr, mount_flag->name) == 0) {
862 if (mount_flag->flag == MS_RDONLY)
863 Mount_Read_Only = true;
864 else
865 Mount_Flags |= (unsigned)mount_flag->flag;
866 found_match = true;
867 break;
868 }
869 }
870 if (found_match)
871 continue;
Matt Mower4ab42b12016-04-21 13:52:18 -0500872 }
873
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600874 // If we aren't ignoring this flag and it's not a mount flag, then it must be a mount option
875 if (!Mount_Options.empty())
876 Mount_Options += ",";
877 Mount_Options += ptr;
Matt Mower4ab42b12016-04-21 13:52:18 -0500878 }
879 free(options);
Hashcode62bd9e02013-11-19 21:59:42 -0800880}
881
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600882void TWPartition::Save_FS_Flags(const string& local_File_System, int local_Mount_Flags, const string& local_Mount_Options) {
883 partition_fs_flags_struct flags;
884 flags.File_System = local_File_System;
885 flags.Mount_Flags = local_Mount_Flags;
886 flags.Mount_Options = local_Mount_Options;
887 fs_flags.push_back(flags);
888}
889
Matt Mower2416a502016-04-12 19:54:46 -0500890void TWPartition::Apply_TW_Flag(const unsigned flag, const char* str, const bool val) {
891 switch (flag) {
892 case TWFLAG_ANDSEC:
893 Has_Android_Secure = val;
894 break;
895 case TWFLAG_BACKUP:
896 Can_Be_Backed_Up = val;
897 break;
898 case TWFLAG_BACKUPNAME:
899 Backup_Display_Name = str;
900 break;
901 case TWFLAG_BLOCKSIZE:
902 Format_Block_Size = (unsigned long)(atol(str));
903 break;
904 case TWFLAG_CANBEWIPED:
905 Can_Be_Wiped = val;
906 break;
907 case TWFLAG_CANENCRYPTBACKUP:
908 Can_Encrypt_Backup = val;
909 break;
910 case TWFLAG_DEFAULTS:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600911 case TWFLAG_WAIT:
912 case TWFLAG_VERIFY:
913 case TWFLAG_CHECK:
914 case TWFLAG_NOTRIM:
915 case TWFLAG_VOLDMANAGED:
916 case TWFLAG_RESIZE:
Matt Mower2416a502016-04-12 19:54:46 -0500917 // Do nothing
918 break;
919 case TWFLAG_DISPLAY:
920 Display_Name = str;
921 break;
922 case TWFLAG_ENCRYPTABLE:
923 case TWFLAG_FORCEENCRYPT:
924 Crypto_Key_Location = str;
925 break;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500926 case TWFLAG_FILEENCRYPTION:
927 // This flag isn't used by TWRP but is needed in 9.0 FBE decrypt
928 // fileencryption=ice:aes-256-heh
929 {
930 std::string FBE = str;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500931 size_t colon_loc = FBE.find(":");
932 if (colon_loc == std::string::npos) {
Ethan Yonker93382822018-11-01 15:25:31 -0500933 property_set("fbe.contents", FBE.c_str());
934 property_set("fbe.filenames", "");
935 LOGINFO("FBE contents '%s', filenames ''\n", FBE.c_str());
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500936 break;
937 }
Ethan Yonker93382822018-11-01 15:25:31 -0500938 std::string FBE_contents, FBE_filenames;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500939 FBE_contents = FBE.substr(0, colon_loc);
940 FBE_filenames = FBE.substr(colon_loc + 1);
941 property_set("fbe.contents", FBE_contents.c_str());
942 property_set("fbe.filenames", FBE_filenames.c_str());
943 LOGINFO("FBE contents '%s', filenames '%s'\n", FBE_contents.c_str(), FBE_filenames.c_str());
944 }
945 break;
Captain Throwbackf74fe4f2022-02-08 12:45:01 -0500946 case TWFLAG_METADATA_ENCRYPTION:
947 // This flag isn't used by TWRP but is needed for FBEv2 metadata decryption
948 // metadata_encryption=aes-256-xts:wrappedkey_v0
949 {
950 std::string META = str;
951 size_t colon_loc = META.find(":");
952 if (colon_loc == std::string::npos) {
953 property_set("metadata.contents", META.c_str());
954 property_set("metadata.filenames", "");
955 LOGINFO("Metadata contents '%s', filenames ''\n", META.c_str());
956 break;
957 }
958 std::string META_contents, META_filenames;
959 META_contents = META.substr(0, colon_loc);
960 META_filenames = META.substr(colon_loc + 1);
961 property_set("metadata.contents", META_contents.c_str());
962 property_set("metadata.filenames", META_filenames.c_str());
963 LOGINFO("Metadata contents '%s', filenames '%s'\n", META_contents.c_str(), META_filenames.c_str());
964 }
965 break;
Peter Cai28ea7b02019-05-24 11:38:54 +0800966 case TWFLAG_WRAPPEDKEY:
bigbiff437d86f2021-09-26 16:57:14 -0400967 // no more processing needed. leaving it here in case we want to do something in the future
Peter Cai28ea7b02019-05-24 11:38:54 +0800968 break;
Matt Mower2416a502016-04-12 19:54:46 -0500969 case TWFLAG_FLASHIMG:
970 Can_Flash_Img = val;
971 break;
972 case TWFLAG_FSFLAGS:
Matt Mower4ab42b12016-04-21 13:52:18 -0500973 Process_FS_Flags(str);
Matt Mower2416a502016-04-12 19:54:46 -0500974 break;
975 case TWFLAG_IGNOREBLKID:
976 Ignore_Blkid = val;
977 break;
978 case TWFLAG_LENGTH:
979 Length = atoi(str);
980 break;
981 case TWFLAG_MOUNTTODECRYPT:
982 Mount_To_Decrypt = val;
983 break;
Captain Throwback8d97d422022-02-08 15:31:44 -0500984 case TWFLAG_QUOTA:
985 // Filesystem flag - TWRP does not need to process
986 break;
Matt Mower2416a502016-04-12 19:54:46 -0500987 case TWFLAG_REMOVABLE:
988 Removable = val;
989 break;
Matt Mower2416a502016-04-12 19:54:46 -0500990 case TWFLAG_SETTINGSSTORAGE:
991 Is_Settings_Storage = val;
992 if (Is_Settings_Storage)
993 Is_Storage = true;
994 break;
995 case TWFLAG_STORAGE:
996 Is_Storage = val;
997 break;
998 case TWFLAG_STORAGENAME:
999 Storage_Name = str;
1000 break;
1001 case TWFLAG_SUBPARTITIONOF:
1002 Is_SubPartition = true;
1003 SubPartition_Of = str;
1004 break;
1005 case TWFLAG_SYMLINK:
1006 Symlink_Path = str;
1007 break;
1008 case TWFLAG_USERDATAENCRYPTBACKUP:
1009 Use_Userdata_Encryption = val;
1010 if (Use_Userdata_Encryption)
1011 Can_Encrypt_Backup = true;
1012 break;
1013 case TWFLAG_USERMRF:
1014 Use_Rm_Rf = val;
1015 break;
1016 case TWFLAG_WIPEDURINGFACTORYRESET:
1017 Wipe_During_Factory_Reset = val;
1018 if (Wipe_During_Factory_Reset) {
1019 Can_Be_Wiped = true;
1020 Wipe_Available_in_GUI = true;
1021 }
1022 break;
1023 case TWFLAG_WIPEINGUI:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001024 case TWFLAG_FORMATTABLE:
Matt Mower2416a502016-04-12 19:54:46 -05001025 Wipe_Available_in_GUI = val;
1026 if (Wipe_Available_in_GUI)
1027 Can_Be_Wiped = true;
1028 break;
Ethan Yonker1b190162016-12-05 15:25:19 -06001029 case TWFLAG_SLOTSELECT:
1030 SlotSelect = true;
1031 break;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001032 case TWFLAG_ALTDEVICE:
1033 Alternate_Block_Device = str;
1034 break;
Peter Cai439d60c2019-10-17 08:49:10 +08001035 case TWFLAG_ADOPTED_MOUNT_DELAY:
1036 Adopted_Mount_Delay = atoi(str);
1037 break;
Ethan Yonker93382822018-11-01 15:25:31 -05001038 case TWFLAG_KEYDIRECTORY:
1039 Key_Directory = str;
bigbiffa957f072021-03-07 18:20:29 -05001040 LOGINFO("setting Key_Directory to: %s\n", Key_Directory.c_str());
bigbiffd58ba182020-03-23 10:02:29 -04001041 break;
Peter Caid68e6412019-11-02 19:22:38 +08001042 case TWFLAG_DM_USE_ORIGINAL_PATH:
1043 Use_Original_Path = true;
1044 break;
bigbiff998f8392021-08-06 19:19:33 -04001045 case TWFLAG_LOGICAL:
1046 Is_Super = true;
1047 break;
Matt Mower2416a502016-04-12 19:54:46 -05001048 default:
1049 // Should not get here
1050 LOGINFO("Flag identified for processing, but later unmatched: %i\n", flag);
1051 break;
1052 }
1053}
Dees_Troy51127312012-09-08 13:08:49 -04001054
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001055void TWPartition::Process_TW_Flags(char *flags, bool Display_Error, int fstab_ver) {
Matt Mower2416a502016-04-12 19:54:46 -05001056 char separator[2] = {'\n', 0};
1057 char *ptr, *savep;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001058 char source_separator = ';';
1059
1060 if (fstab_ver == 2)
1061 source_separator = ',';
Matt Mower2416a502016-04-12 19:54:46 -05001062
1063 // Semicolons within double-quotes are not forbidden, so replace
1064 // only the semicolons intended as separators with '\n' for strtok
1065 for (unsigned i = 0, skip = 0; i < strlen(flags); i++) {
1066 if (flags[i] == '\"')
Dees_Troya13d74f2013-03-24 08:54:55 -05001067 skip = !skip;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001068 if (!skip && flags[i] == source_separator)
Matt Mower2416a502016-04-12 19:54:46 -05001069 flags[i] = separator[0];
Dees_Troy51127312012-09-08 13:08:49 -04001070 }
1071
Matt Mower2416a502016-04-12 19:54:46 -05001072 // Avoid issues with potentially nested strtok by using strtok_r
1073 ptr = strtok_r(flags, separator, &savep);
1074 while (ptr) {
1075 int ptr_len = strlen(ptr);
1076 const struct flag_list* tw_flag = tw_flags;
Hashcode62bd9e02013-11-19 21:59:42 -08001077
Matt Mower2416a502016-04-12 19:54:46 -05001078 for (; tw_flag->name; tw_flag++) {
1079 int flag_len = strlen(tw_flag->name);
1080
1081 if (strncmp(ptr, tw_flag->name, flag_len) == 0) {
1082 bool flag_val = false;
1083
1084 if (ptr_len > flag_len && (tw_flag->name)[flag_len-1] != '='
1085 && ptr[flag_len] != '=') {
1086 // Handle flags with same starting string
1087 // (e.g. backup and backupname)
1088 continue;
1089 } else if (ptr_len > flag_len && ptr[flag_len] == '=') {
1090 // Handle flags with dual format: Part 1
1091 // (e.g. backup and backup=y. backup=y handled here)
1092 ptr += flag_len + 1;
1093 TWFunc::Strip_Quotes(ptr);
1094 // Skip flags with empty argument
1095 // (e.g. backup=)
1096 if (strlen(ptr) == 0) {
1097 LOGINFO("Flag missing argument or should not include '=': %s=\n", tw_flag->name);
1098 break;
1099 }
1100 flag_val = strchr("yY1", *ptr) != NULL;
1101 } else if (ptr_len == flag_len
1102 && (tw_flag->name)[flag_len-1] == '=') {
1103 // Skip flags missing argument after =
1104 // (e.g. backupname=)
1105 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
1106 break;
1107 } else if (ptr_len > flag_len
1108 && (tw_flag->name)[flag_len-1] == '=') {
1109 // Handle arguments to flags
1110 // (e.g. backupname="My Stuff")
1111 ptr += flag_len;
1112 TWFunc::Strip_Quotes(ptr);
1113 // Skip flags with empty argument
1114 // (e.g. backupname="")
1115 if (strlen(ptr) == 0) {
1116 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
1117 break;
1118 }
1119 } else if (ptr_len == flag_len) {
1120 // Handle flags with dual format: Part 2
1121 // (e.g. backup and backup=y. backup handled here)
1122 flag_val = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001123 } else {
Matt Mower2416a502016-04-12 19:54:46 -05001124 LOGINFO("Flag matched, but could not be processed: %s\n", ptr);
1125 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001126 }
Matt Mower2416a502016-04-12 19:54:46 -05001127
1128 Apply_TW_Flag(tw_flag->flag, ptr, flag_val);
1129 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001130 }
Matt Mower2416a502016-04-12 19:54:46 -05001131 }
1132 if (tw_flag->name == 0) {
Dees_Troy51127312012-09-08 13:08:49 -04001133 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001134 LOGERR("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001135 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001136 LOGINFO("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001137 }
Matt Mower2416a502016-04-12 19:54:46 -05001138 ptr = strtok_r(NULL, separator, &savep);
Dees_Troy51127312012-09-08 13:08:49 -04001139 }
Dees_Troy51a0e822012-09-05 15:24:24 -04001140}
1141
Dees_Troy5bf43922012-09-07 16:07:55 -04001142bool TWPartition::Is_File_System(string File_System) {
1143 if (File_System == "ext2" ||
Dees_Troy63c8df72012-09-10 14:02:05 -04001144 File_System == "ext3" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001145 File_System == "ext4" ||
1146 File_System == "vfat" ||
1147 File_System == "ntfs" ||
1148 File_System == "yaffs2" ||
bigbiff bigbiff3e146522012-11-14 14:32:59 -05001149 File_System == "exfat" ||
Dees_Troye5017042013-08-29 16:38:55 +00001150 File_System == "f2fs" ||
GarfieldHanc60a2082021-11-21 23:46:20 +08001151 File_System == "erofs" ||
Erfan Abdib859e912019-02-05 18:18:46 +02001152 File_System == "squashfs" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001153 File_System == "auto")
1154 return true;
1155 else
1156 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001157}
1158
Dees_Troy5bf43922012-09-07 16:07:55 -04001159bool TWPartition::Is_Image(string File_System) {
Dees_Troy5fcd8f92012-10-16 12:22:05 -04001160 if (File_System == "emmc" || File_System == "mtd" || File_System == "bml")
Dees_Troy5bf43922012-09-07 16:07:55 -04001161 return true;
1162 else
1163 return false;
1164}
1165
Dees_Troy51127312012-09-08 13:08:49 -04001166bool TWPartition::Make_Dir(string Path, bool Display_Error) {
Ethan Yonker93ac7a02016-11-07 22:05:58 -06001167 if (TWFunc::Get_D_Type_From_Stat(Path) != S_IFDIR)
1168 unlink(Path.c_str());
Dees_Troy43d8b002012-09-17 16:00:01 -04001169 if (!TWFunc::Path_Exists(Path)) {
Dees_Troy51127312012-09-08 13:08:49 -04001170 if (mkdir(Path.c_str(), 0777) == -1) {
1171 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001172 gui_msg(Msg(msg::kError, "create_folder_strerr=Can not create '{1}' folder ({2}).")(Path)(strerror(errno)));
Dees_Troy51127312012-09-08 13:08:49 -04001173 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001174 LOGINFO("Can not create '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001175 return false;
1176 } else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001177 LOGINFO("Created '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001178 return true;
1179 }
1180 }
1181 return true;
1182}
1183
Dees_Troy5bf43922012-09-07 16:07:55 -04001184void TWPartition::Setup_File_System(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001185 Can_Be_Mounted = true;
1186 Can_Be_Wiped = true;
1187
Dees_Troy5bf43922012-09-07 16:07:55 -04001188 // Make the mount point folder if it doesn't exist
Dees_Troy51127312012-09-08 13:08:49 -04001189 Make_Dir(Mount_Point, Display_Error);
bigbiffce8f83c2015-12-12 18:30:21 -05001190 Backup_Method = BM_FILES;
Dees_Troy5bf43922012-09-07 16:07:55 -04001191}
1192
Ethan Yonker1b190162016-12-05 15:25:19 -06001193void TWPartition::Setup_Image() {
Dees_Troy5bf43922012-09-07 16:07:55 -04001194 Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
1195 Backup_Name = Display_Name;
Gary Peck82599a82012-11-21 16:23:12 -08001196 if (Current_File_System == "emmc")
bigbiffce8f83c2015-12-12 18:30:21 -05001197 Backup_Method = BM_DD;
Gary Peck82599a82012-11-21 16:23:12 -08001198 else if (Current_File_System == "mtd" || Current_File_System == "bml")
bigbiffce8f83c2015-12-12 18:30:21 -05001199 Backup_Method = BM_FLASH_UTILS;
Dees_Troy5bf43922012-09-07 16:07:55 -04001200 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001201 LOGINFO("Unhandled file system '%s' on image '%s'\n", Current_File_System.c_str(), Display_Name.c_str());
Dees_Troy51a0e822012-09-05 15:24:24 -04001202}
1203
Dees_Troye58d5262012-09-21 12:27:57 -04001204void TWPartition::Setup_AndSec(void) {
Dees_Troya13d74f2013-03-24 08:54:55 -05001205 Backup_Display_Name = "Android Secure";
Dees_Troye58d5262012-09-21 12:27:57 -04001206 Backup_Name = "and-sec";
Dees_Troya13d74f2013-03-24 08:54:55 -05001207 Can_Be_Backed_Up = true;
Dees_Troye58d5262012-09-21 12:27:57 -04001208 Has_Android_Secure = true;
1209 Symlink_Path = Mount_Point + "/.android_secure";
1210 Symlink_Mount_Point = "/and-sec";
1211 Backup_Path = Symlink_Mount_Point;
1212 Make_Dir("/and-sec", true);
1213 Recreate_AndSec_Folder();
Kjell Braden3126a112016-06-19 16:58:15 +00001214 Mount_Storage_Retry(true);
Dees_Troye58d5262012-09-21 12:27:57 -04001215}
1216
that9e0593e2014-10-08 00:01:24 +02001217void TWPartition::Setup_Data_Media() {
Ethan Yonker6277c792014-09-15 14:54:30 -05001218 LOGINFO("Setting up '%s' as data/media emulated storage.\n", Mount_Point.c_str());
Ethan Yonker66a19492015-12-10 10:19:45 -06001219 if (Storage_Name.empty() || Storage_Name == "Data")
1220 Storage_Name = "Internal Storage";
Ethan Yonker6277c792014-09-15 14:54:30 -05001221 Has_Data_Media = true;
1222 Is_Storage = true;
Ethan Yonker66a19492015-12-10 10:19:45 -06001223 Storage_Path = Mount_Point + "/media";
Ethan Yonker6277c792014-09-15 14:54:30 -05001224 Symlink_Path = Storage_Path;
Ethan Yonker66a19492015-12-10 10:19:45 -06001225 if (Mount_Point == "/data") {
1226 Is_Settings_Storage = true;
1227 if (strcmp(EXPAND(TW_EXTERNAL_STORAGE_PATH), "/sdcard") == 0) {
1228 Make_Dir("/emmc", false);
1229 Symlink_Mount_Point = "/emmc";
1230 } else {
1231 Make_Dir("/sdcard", false);
1232 Symlink_Mount_Point = "/sdcard";
1233 }
bigbiff4fa02b52021-12-30 17:01:44 -05001234 Mount(false);
1235 if (TWFunc::Path_Exists(Mount_Point + "/media/0")) {
Ethan Yonker66a19492015-12-10 10:19:45 -06001236 Storage_Path = Mount_Point + "/media/0";
1237 Symlink_Path = Storage_Path;
1238 DataManager::SetValue(TW_INTERNAL_PATH, Mount_Point + "/media/0");
1239 UnMount(true);
1240 }
1241 DataManager::SetValue("tw_has_internal", 1);
1242 DataManager::SetValue("tw_has_data_media", 1);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06001243 backup_exclusions.add_absolute_dir("/data/data/com.google.android.music/files");
bigbiff25d25b92020-06-19 16:07:38 -04001244 backup_exclusions.add_absolute_dir("/data/per_boot"); // DJ9,14Jan2020 - exclude this dir to prevent "error 255" on AOSP ROMs that create and lock it
DarthJabba943d70f42020-08-04 10:31:27 +01001245 backup_exclusions.add_absolute_dir("/data/vendor/dumpsys");
bigbiff25d25b92020-06-19 16:07:38 -04001246 backup_exclusions.add_absolute_dir("/data/cache");
nijel87e5bc9b2022-01-14 10:01:32 -05001247 backup_exclusions.add_absolute_dir("/data/misc/apexdata/com.android.art"); // exclude this dir to prevent "error 255" on AOSP Android 12
sekaiacg05ca8762022-07-06 11:19:45 +08001248 backup_exclusions.add_absolute_dir("/data/extm"); //exclude this dir to prevent "error 255" on MIUI
Ethan Yonker6355b562017-05-01 09:42:17 -05001249 wipe_exclusions.add_absolute_dir(Mount_Point + "/misc/vold"); // adopted storage keys
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001250 ExcludeAll(Mount_Point + "/system/storage.xml");
Darth9cc683e72022-08-09 12:54:40 +01001251
1252 // board-customisable exclusions
1253 #ifdef TW_BACKUP_EXCLUSIONS
1254 std::vector<std::string> user_extra_exclusions = TWFunc::Split_String(TW_BACKUP_EXCLUSIONS, ",");
1255 std::string s1;
1256 for (const std::string& extra_x : user_extra_exclusions) {
1257 s1 = android::base::Trim(extra_x);
1258 if (!s1.empty()) {
1259 backup_exclusions.add_absolute_dir(s1);
1260 LOGINFO("Adding user-defined path '%s' to the backup exclusions\n", s1.c_str());
1261 }
1262 }
1263 #endif
Ethan Yonker6277c792014-09-15 14:54:30 -05001264 } else {
nkk717aa6fc62017-03-24 18:28:03 +02001265 int i;
1266 string path;
1267 for (i = 2; i <= 9; i++) {
1268 path = "/sdcard" + TWFunc::to_string(i);
1269 if (!TWFunc::Path_Exists(path)) {
1270 Make_Dir(path, false);
1271 Symlink_Mount_Point = path;
1272 LOGINFO("'%s' data/media emulated storage symlinked to %s.\n", Mount_Point.c_str(), Symlink_Mount_Point.c_str());
1273 break;
1274 }
1275 }
Ethan Yonker66a19492015-12-10 10:19:45 -06001276 if (Mount(true) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1277 Storage_Path = Mount_Point + "/media/0";
1278 Symlink_Path = Storage_Path;
1279 UnMount(true);
1280 }
Ethan Yonker6277c792014-09-15 14:54:30 -05001281 }
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001282 ExcludeAll(Mount_Point + "/media");
Ethan Yonker6277c792014-09-15 14:54:30 -05001283}
1284
Dees_Troy5bf43922012-09-07 16:07:55 -04001285void TWPartition::Find_Real_Block_Device(string& Block, bool Display_Error) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001286 char device[PATH_MAX], realDevice[PATH_MAX];
Dees_Troy5bf43922012-09-07 16:07:55 -04001287
Peter Caid68e6412019-11-02 19:22:38 +08001288 Original_Path = Block;
1289
Dees_Troy5bf43922012-09-07 16:07:55 -04001290 strcpy(device, Block.c_str());
1291 memset(realDevice, 0, sizeof(realDevice));
1292 while (readlink(device, realDevice, sizeof(realDevice)) > 0)
1293 {
1294 strcpy(device, realDevice);
1295 memset(realDevice, 0, sizeof(realDevice));
1296 }
1297
bigbiff998f8392021-08-06 19:19:33 -04001298 Block = device;
1299 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04001300}
1301
Kjell Braden3126a112016-06-19 16:58:15 +00001302bool TWPartition::Mount_Storage_Retry(bool Display_Error) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001303 // On some devices, storage doesn't want to mount right away, retry and sleep
Kjell Braden3126a112016-06-19 16:58:15 +00001304 if (!Mount(Display_Error)) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001305 int retry_count = 5;
1306 while (retry_count > 0 && !Mount(false)) {
1307 usleep(500000);
1308 retry_count--;
1309 }
Kjell Braden3126a112016-06-19 16:58:15 +00001310 return Mount(Display_Error);
Dees_Troy8e337f32012-10-13 22:07:49 -04001311 }
Kjell Braden3126a112016-06-19 16:58:15 +00001312 return true;
Dees_Troy8e337f32012-10-13 22:07:49 -04001313}
1314
Dees_Troy38bd7602012-09-14 13:33:53 -04001315bool TWPartition::Find_MTD_Block_Device(string MTD_Name) {
1316 FILE *fp = NULL;
1317 char line[255];
1318
1319 fp = fopen("/proc/mtd", "rt");
1320 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001321 LOGERR("Device does not support /proc/mtd\n");
Dees_Troy38bd7602012-09-14 13:33:53 -04001322 return false;
1323 }
1324
1325 while (fgets(line, sizeof(line), fp) != NULL)
1326 {
1327 char device[32], label[32];
1328 unsigned long size = 0;
Dees_Troy38bd7602012-09-14 13:33:53 -04001329 int deviceId;
1330
1331 sscanf(line, "%s %lx %*s %*c%s", device, &size, label);
1332
1333 // Skip header and blank lines
1334 if ((strcmp(device, "dev:") == 0) || (strlen(line) < 8))
1335 continue;
1336
1337 // Strip off the trailing " from the label
1338 label[strlen(label)-1] = '\0';
1339
1340 if (strcmp(label, MTD_Name.c_str()) == 0) {
1341 // We found our device
1342 // Strip off the trailing : from the device
1343 device[strlen(device)-1] = '\0';
1344 if (sscanf(device,"mtd%d", &deviceId) == 1) {
1345 sprintf(device, "/dev/block/mtdblock%d", deviceId);
1346 Primary_Block_Device = device;
Dees_Troy76543db2013-06-19 16:24:30 +00001347 fclose(fp);
1348 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04001349 }
1350 }
1351 }
1352 fclose(fp);
1353
1354 return false;
1355}
1356
Dees_Troy51127312012-09-08 13:08:49 -04001357bool TWPartition::Get_Size_Via_statfs(bool Display_Error) {
1358 struct statfs st;
1359 string Local_Path = Mount_Point + "/.";
1360
1361 if (!Mount(Display_Error))
1362 return false;
1363
1364 if (statfs(Local_Path.c_str(), &st) != 0) {
1365 if (!Removable) {
1366 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001367 LOGERR("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001368 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001369 LOGINFO("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001370 }
1371 return false;
1372 }
1373 Size = (st.f_blocks * st.f_bsize);
1374 Used = ((st.f_blocks - st.f_bfree) * st.f_bsize);
1375 Free = (st.f_bfree * st.f_bsize);
1376 Backup_Size = Used;
1377 return true;
1378}
1379
1380bool TWPartition::Get_Size_Via_df(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001381 FILE* fp;
1382 char command[255], line[512];
1383 int include_block = 1;
1384 unsigned int min_len;
1385
1386 if (!Mount(Display_Error))
1387 return false;
1388
Dees_Troy38bd7602012-09-14 13:33:53 -04001389 min_len = Actual_Block_Device.size() + 2;
Dees_Troy51127312012-09-08 13:08:49 -04001390 sprintf(command, "df %s > /tmp/dfoutput.txt", Mount_Point.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02001391 TWFunc::Exec_Cmd(command);
Dees_Troy51127312012-09-08 13:08:49 -04001392 fp = fopen("/tmp/dfoutput.txt", "rt");
1393 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001394 LOGINFO("Unable to open /tmp/dfoutput.txt.\n");
Dees_Troy5bf43922012-09-07 16:07:55 -04001395 return false;
Dees_Troy51127312012-09-08 13:08:49 -04001396 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001397
1398 while (fgets(line, sizeof(line), fp) != NULL)
1399 {
1400 unsigned long blocks, used, available;
1401 char device[64];
1402 char tmpString[64];
1403
1404 if (strncmp(line, "Filesystem", 10) == 0)
1405 continue;
1406 if (strlen(line) < min_len) {
1407 include_block = 0;
1408 continue;
1409 }
1410 if (include_block) {
1411 sscanf(line, "%s %lu %lu %lu", device, &blocks, &used, &available);
1412 } else {
1413 // The device block string is so long that the df information is on the next line
1414 int space_count = 0;
Dees_Troye58d5262012-09-21 12:27:57 -04001415 sprintf(tmpString, "/dev/block/%s", Actual_Block_Device.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001416 while (tmpString[space_count] == 32)
1417 space_count++;
1418 sscanf(line + space_count, "%lu %lu %lu", &blocks, &used, &available);
1419 }
1420
1421 // Adjust block size to byte size
1422 Size = blocks * 1024ULL;
1423 Used = used * 1024ULL;
1424 Free = available * 1024ULL;
1425 Backup_Size = Used;
1426 }
1427 fclose(fp);
1428 return true;
1429}
1430
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001431unsigned long long TWPartition::IOCTL_Get_Block_Size() {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001432 Find_Actual_Block_Device();
Ethan Yonker483e9f42016-01-11 22:21:18 -06001433
1434 return TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001435}
1436
Dees_Troy5bf43922012-09-07 16:07:55 -04001437bool TWPartition::Find_Partition_Size(void) {
1438 FILE* fp;
1439 char line[512];
1440 string tmpdevice;
1441
igoriok87e3d932013-01-31 21:03:53 +02001442 fp = fopen("/proc/dumchar_info", "rt");
1443 if (fp != NULL) {
1444 while (fgets(line, sizeof(line), fp) != NULL)
1445 {
1446 char label[32], device[32];
1447 unsigned long size = 0;
1448
thatd43bf2d2014-09-21 23:13:02 +02001449 sscanf(line, "%s %lx %*x %*u %s", label, &size, device);
igoriok87e3d932013-01-31 21:03:53 +02001450
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05001451 // Skip header, annotation and blank lines
igoriok87e3d932013-01-31 21:03:53 +02001452 if ((strncmp(device, "/dev/", 5) != 0) || (strlen(line) < 8))
1453 continue;
1454
1455 tmpdevice = "/dev/";
1456 tmpdevice += label;
1457 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
1458 Size = size;
1459 fclose(fp);
1460 return true;
1461 }
1462 }
1463 }
1464
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001465 unsigned long long ioctl_size = IOCTL_Get_Block_Size();
1466 if (ioctl_size) {
1467 Size = ioctl_size;
1468 return true;
1469 }
1470
Dees_Troy5bf43922012-09-07 16:07:55 -04001471 // In this case, we'll first get the partitions we care about (with labels)
1472 fp = fopen("/proc/partitions", "rt");
1473 if (fp == NULL)
1474 return false;
1475
1476 while (fgets(line, sizeof(line), fp) != NULL)
1477 {
1478 unsigned long major, minor, blocks;
1479 char device[512];
Dees_Troy5bf43922012-09-07 16:07:55 -04001480
Dees_Troy63c8df72012-09-10 14:02:05 -04001481 if (strlen(line) < 7 || line[0] == 'm') continue;
Dees_Troy5bf43922012-09-07 16:07:55 -04001482 sscanf(line + 1, "%lu %lu %lu %s", &major, &minor, &blocks, device);
1483
1484 tmpdevice = "/dev/block/";
1485 tmpdevice += device;
Dees_Troy38bd7602012-09-14 13:33:53 -04001486 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001487 // Adjust block size to byte size
1488 Size = blocks * 1024ULL;
1489 fclose(fp);
1490 return true;
1491 }
1492 }
1493 fclose(fp);
1494 return false;
1495}
1496
Dees_Troy5bf43922012-09-07 16:07:55 -04001497bool TWPartition::Is_Mounted(void) {
1498 if (!Can_Be_Mounted)
1499 return false;
1500
1501 struct stat st1, st2;
1502 string test_path;
1503
1504 // Check to see if the mount point directory exists
1505 test_path = Mount_Point + "/.";
1506 if (stat(test_path.c_str(), &st1) != 0) return false;
1507
1508 // Check to see if the directory above the mount point exists
1509 test_path = Mount_Point + "/../.";
1510 if (stat(test_path.c_str(), &st2) != 0) return false;
1511
1512 // Compare the device IDs -- if they match then we're (probably) using tmpfs instead of an actual device
1513 int ret = (st1.st_dev != st2.st_dev) ? true : false;
Dees_Troy5bf43922012-09-07 16:07:55 -04001514 return ret;
1515}
1516
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001517bool TWPartition::Is_File_System_Writable(void) {
1518 if (!Is_File_System(Current_File_System) || !Is_Mounted())
1519 return false;
1520
1521 string test_path = Mount_Point + "/.";
1522 return (access(test_path.c_str(), W_OK) == 0);
1523}
1524
Dees_Troy5bf43922012-09-07 16:07:55 -04001525bool TWPartition::Mount(bool Display_Error) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001526 int exfat_mounted = 0;
Martin Dünkelmann6d843782018-12-27 23:40:28 +01001527 unsigned int flags = Mount_Flags;
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001528
Dees_Troy5bf43922012-09-07 16:07:55 -04001529 if (Is_Mounted()) {
1530 return true;
1531 } else if (!Can_Be_Mounted) {
1532 return false;
1533 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001534
1535 Find_Actual_Block_Device();
1536
1537 // Check the current file system before mounting
1538 Check_FS_Type();
bigbiffad58e1b2020-07-06 20:24:34 -04001539 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/exfat-fuse")) {
1540 string cmd = "/system/bin/exfat-fuse -o big_writes,max_read=131072,max_write=131072 " + Actual_Block_Device + " " + Mount_Point;
Dees_Troy2673cec2013-04-02 20:22:16 +00001541 LOGINFO("cmd: %s\n", cmd.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001542 string result;
bigbiffad58e1b2020-07-06 20:24:34 -04001543 if (TWFunc::Exec_Cmd(cmd, result, false) != 0) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001544 LOGINFO("exfat-fuse failed to mount with result '%s', trying vfat\n", result.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001545 Current_File_System = "vfat";
1546 } else {
1547#ifdef TW_NO_EXFAT_FUSE
1548 UnMount(false);
1549 // We'll let the kernel handle it but using exfat-fuse to detect if the file system is actually exfat
1550 // Some kernels let us mount vfat as exfat which doesn't work out too well
1551#else
1552 exfat_mounted = 1;
1553#endif
1554 }
1555 }
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001556
Captain Throwback47bf7202020-10-06 17:39:39 -04001557 if (Current_File_System == "ntfs" && !TWFunc::Path_Exists("/sys/module/tntfs") && (TWFunc::Path_Exists("/system/bin/ntfs-3g") || TWFunc::Path_Exists("/system/bin/mount.ntfs"))) {
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001558 string cmd;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001559 string Ntfsmount_Binary = "";
1560
bigbiffad58e1b2020-07-06 20:24:34 -04001561 if (TWFunc::Path_Exists("/system/bin/ntfs-3g"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001562 Ntfsmount_Binary = "ntfs-3g";
bigbiffad58e1b2020-07-06 20:24:34 -04001563 else if (TWFunc::Path_Exists("/system/bin/mount.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001564 Ntfsmount_Binary = "mount.ntfs";
1565
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001566 if (Mount_Read_Only)
bigbiffad58e1b2020-07-06 20:24:34 -04001567 cmd = "/system/bin/" + Ntfsmount_Binary + " -o ro " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001568 else
bigbiffad58e1b2020-07-06 20:24:34 -04001569 cmd = "/system/bin/" + Ntfsmount_Binary + " " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001570 LOGINFO("cmd: '%s'\n", cmd.c_str());
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001571
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001572 if (TWFunc::Exec_Cmd(cmd) == 0) {
1573 return true;
1574 } else {
1575 LOGINFO("ntfs-3g failed to mount, trying regular mount method.\n");
1576 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001577 } else {
1578 if (Current_File_System == "ntfs" && TWFunc::Path_Exists("/sys/module/tntfs"))
1579 Current_File_System = "tntfs";
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001580 }
1581
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001582 if (Mount_Read_Only)
1583 flags |= MS_RDONLY;
1584
Dees_Troy22042032012-12-18 21:23:08 +00001585 if (Fstab_File_System == "yaffs2") {
1586 // mount an MTD partition as a YAFFS2 filesystem.
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001587 flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
1588 if (Mount_Read_Only)
1589 flags |= MS_RDONLY;
Dees_Troy76543db2013-06-19 16:24:30 +00001590 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags, NULL) < 0) {
1591 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags | MS_RDONLY, NULL) < 0) {
1592 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001593 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001594 else
1595 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1596 return false;
1597 } else {
1598 LOGINFO("Mounted '%s' (MTD) as RO\n", Mount_Point.c_str());
1599 return true;
1600 }
1601 } else {
1602 struct stat st;
1603 string test_path = Mount_Point;
1604 if (stat(test_path.c_str(), &st) < 0) {
1605 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001606 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001607 else
1608 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1609 return false;
1610 }
1611 mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
1612 if (new_mode != st.st_mode) {
1613 LOGINFO("Fixing execute permissions for %s\n", Mount_Point.c_str());
1614 if (chmod(Mount_Point.c_str(), new_mode) < 0) {
1615 if (Display_Error)
1616 LOGERR("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1617 else
1618 LOGINFO("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1619 return false;
1620 }
1621 }
Dees_Troy22042032012-12-18 21:23:08 +00001622 return true;
Dees_Troy76543db2013-06-19 16:24:30 +00001623 }
thatc7572eb2015-03-31 18:55:30 +02001624 }
1625
1626 string mount_fs = Current_File_System;
1627 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sys/module/texfat"))
1628 mount_fs = "texfat";
1629
1630 if (!exfat_mounted &&
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001631 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, Mount_Options.c_str()) != 0 &&
1632 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, NULL) != 0) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001633#ifdef TW_NO_EXFAT_FUSE
1634 if (Current_File_System == "exfat") {
Dees_Troy2673cec2013-04-02 20:22:16 +00001635 LOGINFO("Mounting exfat failed, trying vfat...\n");
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001636 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), "vfat", 0, NULL) != 0) {
Dees_Troy85f44ed2013-01-09 18:42:36 +00001637 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001638 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy85f44ed2013-01-09 18:42:36 +00001639 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001640 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001641 LOGINFO("Actual block device: '%s', current file system: '%s', flags: 0x%8x, options: '%s'\n", Actual_Block_Device.c_str(), Current_File_System.c_str(), flags, Mount_Options.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001642 return false;
Dees_Troy85f44ed2013-01-09 18:42:36 +00001643 }
Dees_Troyb05ddee2013-01-28 20:24:50 +00001644 } else {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001645#endif
bigbiff bigbiff26774a02014-03-29 18:22:00 -04001646 if (!Removable && Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001647 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001648 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001649 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
1650 LOGINFO("Actual block device: '%s', current file system: '%s'\n", Actual_Block_Device.c_str(), Current_File_System.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001651 return false;
1652#ifdef TW_NO_EXFAT_FUSE
Dees_Troy85f44ed2013-01-09 18:42:36 +00001653 }
1654#endif
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001655 }
Ethan Yonker253368a2014-11-25 15:00:52 -06001656
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001657 if (Removable)
1658 Update_Size(Display_Error);
1659
bigbiff4fa02b52021-12-30 17:01:44 -05001660 if (!Symlink_Mount_Point.empty()) {
bigbiffbe4f46c2021-04-24 11:48:54 -04001661 if (!Bind_Mount(false))
1662 return false;
1663 }
1664 return true;
1665}
1666
1667bool TWPartition::Bind_Mount(bool Display_Error) {
1668 if (TWFunc::Path_Exists(Symlink_Path)) {
1669 if (mount(Symlink_Path.c_str(), Symlink_Mount_Point.c_str(), "", MS_BIND, NULL) < 0) {
1670 return false;
1671 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001672 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001673 return true;
1674}
1675
1676bool TWPartition::UnMount(bool Display_Error) {
1677 if (Is_Mounted()) {
1678 int never_unmount_system;
1679
1680 DataManager::GetValue(TW_DONT_UNMOUNT_SYSTEM, never_unmount_system);
Captain Throwback9d6feb52018-07-27 10:05:24 -04001681 if (never_unmount_system == 1 && Mount_Point == PartitionManager.Get_Android_Root_Path())
Dees_Troy5bf43922012-09-07 16:07:55 -04001682 return true; // Never unmount system if you're not supposed to unmount it
1683
Matt Mowera8e6d832017-02-14 20:20:59 -06001684 if (Is_Storage && MTP_Storage_ID > 0)
Ethan Yonker726a0202014-12-16 20:01:38 -06001685 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001686
Dees_Troy38bd7602012-09-14 13:33:53 -04001687 if (!Symlink_Mount_Point.empty())
1688 umount(Symlink_Mount_Point.c_str());
1689
Dees_Troyb05ddee2013-01-28 20:24:50 +00001690 umount(Mount_Point.c_str());
1691 if (Is_Mounted()) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001692 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001693 gui_msg(Msg(msg::kError, "fail_unmount=Failed to unmount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy5bf43922012-09-07 16:07:55 -04001694 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001695 LOGINFO("Unable to unmount '%s'\n", Mount_Point.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001696 return false;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001697 } else {
Dees_Troy5bf43922012-09-07 16:07:55 -04001698 return true;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001699 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001700 } else {
1701 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04001702 }
1703}
1704
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001705bool TWPartition::ReMount(bool Display_Error) {
1706 if (UnMount(Display_Error))
1707 return Mount(Display_Error);
1708 return false;
1709}
1710
1711bool TWPartition::ReMount_RW(bool Display_Error) {
1712 // No need to remount if already mounted rw
1713 if (Is_File_System_Writable())
1714 return true;
1715
1716 bool ro = Mount_Read_Only;
1717 int flags = Mount_Flags;
1718
1719 Mount_Read_Only = false;
1720 Mount_Flags &= ~MS_RDONLY;
1721
1722 bool ret = ReMount(Display_Error);
1723
1724 Mount_Read_Only = ro;
1725 Mount_Flags = flags;
1726
1727 return ret;
1728}
1729
Gary Peck43acadf2012-11-21 21:19:01 -08001730bool TWPartition::Wipe(string New_File_System) {
Ethan Yonker726a0202014-12-16 20:01:38 -06001731 bool wiped = false, update_crypt = false, recreate_media = true;
Dees_Troy16c2b312013-01-15 16:51:18 +00001732 int check;
Dees_Troy16c2b312013-01-15 16:51:18 +00001733
Dees_Troy38bd7602012-09-14 13:33:53 -04001734 if (!Can_Be_Wiped) {
Matt Mower3c366972015-12-25 19:28:31 -06001735 gui_msg(Msg(msg::kError, "cannot_wipe=Partition {1} cannot be wiped.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04001736 return false;
1737 }
1738
Dees_Troyc51f1f92012-09-20 15:32:13 -04001739 if (Mount_Point == "/cache")
Dees_Troy2673cec2013-04-02 20:22:16 +00001740 Log_Offset = 0;
Dees_Troyc51f1f92012-09-20 15:32:13 -04001741
bigbiff4a60bee2021-01-23 14:08:03 -05001742 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1743 if (tw_get_default_metadata(PartitionManager.Get_Android_Root_Path().c_str()) != 0) {
1744 gui_msg(Msg(msg::kWarning, "restore_system_context=Unable to get default context for {1} -- Android may not boot.")(PartitionManager.Get_Android_Root_Path()));
1745 }
1746 }
1747
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001748 if (Has_Data_Media && Current_File_System == New_File_System) {
Dees_Troy16c2b312013-01-15 16:51:18 +00001749 wiped = Wipe_Data_Without_Wiping_Media();
bigbiff25d25b92020-06-19 16:07:38 -04001750 if (Mount_Point == "/data" && TWFunc::get_log_dir() == DATA_LOGS_DIR) {
1751 bool created = PartitionManager.Recreate_Logs_Dir();
1752 if (!created)
1753 LOGERR("Unable to create log directory for TWRP\n");
bigbiff7ba75002020-04-11 20:47:09 -04001754 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001755 recreate_media = false;
Dees_Troy16c2b312013-01-15 16:51:18 +00001756 } else {
Dees_Troy16c2b312013-01-15 16:51:18 +00001757 DataManager::GetValue(TW_RM_RF_VAR, check);
Hashcodedabfd492013-08-29 22:45:30 -07001758 if (check || Use_Rm_Rf)
Dees_Troy16c2b312013-01-15 16:51:18 +00001759 wiped = Wipe_RMRF();
1760 else if (New_File_System == "ext4")
1761 wiped = Wipe_EXT4();
1762 else if (New_File_System == "ext2" || New_File_System == "ext3")
dianlujitao4879b372018-12-03 18:45:47 +08001763 wiped = Wipe_EXTFS(New_File_System);
Dees_Troy16c2b312013-01-15 16:51:18 +00001764 else if (New_File_System == "exfat")
1765 wiped = Wipe_EXFAT();
Captain Throwback47bf7202020-10-06 17:39:39 -04001766 else if (New_File_System == "ntfs" || Current_File_System == "tntfs")
1767 wiped = Wipe_NTFS();
Dees_Troy16c2b312013-01-15 16:51:18 +00001768 else if (New_File_System == "yaffs2")
1769 wiped = Wipe_MTD();
Dees_Troye5017042013-08-29 16:38:55 +00001770 else if (New_File_System == "f2fs")
1771 wiped = Wipe_F2FS();
Captain Throwback47bf7202020-10-06 17:39:39 -04001772 else if (New_File_System == "vfat")
1773 wiped = Wipe_FAT();
Dees_Troy16c2b312013-01-15 16:51:18 +00001774 else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001775 LOGERR("Unable to wipe '%s' -- unknown file system '%s'\n", Mount_Point.c_str(), New_File_System.c_str());
Dees_Troy16c2b312013-01-15 16:51:18 +00001776 return false;
1777 }
1778 update_crypt = wiped;
bigbiff7ba75002020-04-11 20:47:09 -04001779 update_crypt = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08001780 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001781
Gary Pecke8bc5d72012-12-21 06:45:25 -08001782 if (wiped) {
Mohd Faraze1d72622020-06-15 00:28:32 +05301783 if (Mount_Point == "/cache" && TWFunc::get_log_dir() != DATA_LOGS_DIR)
1784 DataManager::Output_Version();
1785
bigbiff4a60bee2021-01-23 14:08:03 -05001786 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1787 tw_set_default_metadata(PartitionManager.Get_Android_Root_Path().c_str());
1788 }
Dees_Troy16c2b312013-01-15 16:51:18 +00001789 if (update_crypt) {
1790 Setup_File_System(false);
1791 if (Is_Encrypted && !Is_Decrypted) {
1792 // just wiped an encrypted partition back to its unencrypted state
1793 Is_Encrypted = false;
1794 Is_Decrypted = false;
1795 Decrypted_Block_Device = "";
1796 if (Mount_Point == "/data") {
1797 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
1798 DataManager::SetValue(TW_IS_DECRYPTED, 0);
1799 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08001800 }
1801 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001802
Captain Throwback63573b52021-10-02 20:47:33 -04001803 if (Is_Storage && Mount(false) && !Is_FBE)
bigbiffbe4f46c2021-04-24 11:48:54 -04001804 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Gary Pecke8bc5d72012-12-21 06:45:25 -08001805 }
Matt Mower209c9632016-01-20 12:08:35 -06001806
Gary Pecke8bc5d72012-12-21 06:45:25 -08001807 return wiped;
Dees_Troy51a0e822012-09-05 15:24:24 -04001808}
1809
Gary Peck43acadf2012-11-21 21:19:01 -08001810bool TWPartition::Wipe() {
Gary Peck82599a82012-11-21 16:23:12 -08001811 if (Is_File_System(Current_File_System))
1812 return Wipe(Current_File_System);
1813 else
1814 return Wipe(Fstab_File_System);
Gary Peck43acadf2012-11-21 21:19:01 -08001815}
1816
Dees_Troye58d5262012-09-21 12:27:57 -04001817bool TWPartition::Wipe_AndSec(void) {
1818 if (!Has_Android_Secure)
1819 return false;
1820
Dees_Troye58d5262012-09-21 12:27:57 -04001821 if (!Mount(true))
1822 return false;
1823
Ethan Yonker74db1572015-10-28 12:44:49 -05001824 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05001825 TWFunc::removeDir(Mount_Point + "/.android_secure/", true);
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02001826 return true;
Dees_Troye58d5262012-09-21 12:27:57 -04001827}
1828
bigbiffaed1bdf2021-08-03 18:21:39 -04001829bool TWPartition::Wipe_Data_Cache(void) {
1830 if (!Mount(true))
1831 return false;
1832 gui_msg(Msg("wiping=Wiping {1}")(Mount_Point + "/cache/"));
1833 TWFunc::removeDir(Mount_Point + "/cache/", true);
1834 return true;
1835}
1836
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001837bool TWPartition::Can_Repair() {
Ethan Yonkera2719152015-05-28 09:44:41 -05001838 if (Mount_Read_Only)
1839 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001840 if (Current_File_System == "vfat" && TWFunc::Path_Exists("/system/bin/fsck.fat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001841 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001842 else if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/system/bin/e2fsck"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001843 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001844 else if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/fsck.exfat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001845 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001846 else if (Current_File_System == "f2fs" && TWFunc::Path_Exists("/system/bin/fsck.f2fs"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001847 return true;
Captain Throwback47bf7202020-10-06 17:39:39 -04001848 else if ((Current_File_System == "ntfs" || Current_File_System == "tntfs") && (TWFunc::Path_Exists("/system/bin/ntfsfix") || TWFunc::Path_Exists("/system/bin/fsck.ntfs")))
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001849 return true;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001850 return false;
1851}
1852
1853bool TWPartition::Repair() {
1854 string command;
1855
1856 if (Current_File_System == "vfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001857 if (!TWFunc::Path_Exists("/system/bin/fsck.fat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001858 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001859 return false;
1860 }
1861 if (!UnMount(true))
1862 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001863 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001864 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001865 command = "/system/bin/fsck.fat -y " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001866 LOGINFO("Repair command: %s\n", command.c_str());
1867 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001868 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001869 return true;
1870 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001871 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001872 return false;
1873 }
1874 }
1875 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
bigbiffad58e1b2020-07-06 20:24:34 -04001876 if (!TWFunc::Path_Exists("/system/bin/e2fsck")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001877 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001878 return false;
1879 }
1880 if (!UnMount(true))
1881 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001882 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001883 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001884 command = "/system/bin/e2fsck -fp " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001885 LOGINFO("Repair command: %s\n", command.c_str());
1886 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001887 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001888 return true;
1889 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001890 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001891 return false;
1892 }
1893 }
1894 if (Current_File_System == "exfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001895 if (!TWFunc::Path_Exists("/system/bin/fsck.exfat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001896 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001897 return false;
1898 }
1899 if (!UnMount(true))
1900 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001901 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001902 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001903 command = "/system/bin/fsck.exfat " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001904 LOGINFO("Repair command: %s\n", command.c_str());
1905 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001906 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001907 return true;
1908 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001909 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001910 return false;
1911 }
1912 }
1913 if (Current_File_System == "f2fs") {
bigbiffad58e1b2020-07-06 20:24:34 -04001914 if (!TWFunc::Path_Exists("/system/bin/fsck.f2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001915 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001916 return false;
1917 }
1918 if (!UnMount(true))
1919 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001920 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001921 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001922 command = "/system/bin/fsck.f2fs " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001923 LOGINFO("Repair command: %s\n", command.c_str());
1924 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001925 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001926 return true;
1927 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001928 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001929 return false;
1930 }
1931 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001932 if (Current_File_System == "ntfs" || Current_File_System == "tntfs") {
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001933 string Ntfsfix_Binary;
bigbiffad58e1b2020-07-06 20:24:34 -04001934 if (TWFunc::Path_Exists("/system/bin/ntfsfix"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001935 Ntfsfix_Binary = "ntfsfix";
bigbiffad58e1b2020-07-06 20:24:34 -04001936 else if (TWFunc::Path_Exists("/system/bin/fsck.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001937 Ntfsfix_Binary = "fsck.ntfs";
1938 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001939 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("ntfsfix"));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001940 return false;
1941 }
1942 if (!UnMount(true))
1943 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001944 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)(Ntfsfix_Binary));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001945 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001946 command = "/system/bin/" + Ntfsfix_Binary + " " + Actual_Block_Device;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001947 LOGINFO("Repair command: %s\n", command.c_str());
1948 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001949 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001950 return true;
1951 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001952 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001953 return false;
1954 }
1955 }
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001956 return false;
1957}
1958
Ethan Yonkera2719152015-05-28 09:44:41 -05001959bool TWPartition::Can_Resize() {
1960 if (Mount_Read_Only)
1961 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001962 if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/system/bin/resize2fs"))
Ethan Yonkera2719152015-05-28 09:44:41 -05001963 return true;
1964 return false;
1965}
1966
1967bool TWPartition::Resize() {
1968 string command;
1969
1970 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
1971 if (!Can_Repair()) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001972 LOGINFO("Cannot resize %s because %s cannot be repaired before resizing.\n", Display_Name.c_str(), Display_Name.c_str());
1973 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001974 return false;
1975 }
bigbiffad58e1b2020-07-06 20:24:34 -04001976 if (!TWFunc::Path_Exists("/system/bin/resize2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001977 LOGINFO("resize2fs does not exist! Cannot resize!\n");
1978 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001979 return false;
1980 }
1981 // Repair will unmount so no need to do it twice
Ethan Yonker74db1572015-10-28 12:44:49 -05001982 gui_msg(Msg("repair_resize=Repairing {1} before resizing.")( Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001983 if (!Repair())
1984 return false;
Ethan Yonker74db1572015-10-28 12:44:49 -05001985 gui_msg(Msg("resizing=Resizing {1} using {2}...")(Display_Name)("resize2fs"));
Ethan Yonkera2719152015-05-28 09:44:41 -05001986 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001987 command = "/system/bin/resize2fs " + Actual_Block_Device;
Ethan Yonkera2719152015-05-28 09:44:41 -05001988 if (Length != 0) {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001989 unsigned long long Actual_Size = IOCTL_Get_Block_Size();
1990 if (Actual_Size == 0)
1991 return false;
Ethan Yonkera2719152015-05-28 09:44:41 -05001992
Ethan Yonkera2719152015-05-28 09:44:41 -05001993 unsigned long long Block_Count;
1994 if (Length < 0) {
1995 // Reduce overall size by this length
1996 Block_Count = (Actual_Size / 1024LLU) - ((unsigned long long)(Length * -1) / 1024LLU);
1997 } else {
1998 // This is the size, not a size reduction
1999 Block_Count = ((unsigned long long)(Length) / 1024LLU);
2000 }
2001 char temp[256];
2002 sprintf(temp, "%llu", Block_Count);
2003 command += " ";
2004 command += temp;
2005 command += "K";
2006 }
2007 LOGINFO("Resize command: %s\n", command.c_str());
2008 if (TWFunc::Exec_Cmd(command) == 0) {
2009 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05002010 gui_msg("done=Done.");
Ethan Yonkera2719152015-05-28 09:44:41 -05002011 return true;
2012 } else {
2013 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05002014 gui_msg(Msg(msg::kError, "unable_resize=Unable to resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05002015 return false;
2016 }
2017 }
2018 return false;
2019}
2020
bigbiffce8f83c2015-12-12 18:30:21 -05002021bool TWPartition::Backup(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
2022 if (Backup_Method == BM_FILES)
2023 return Backup_Tar(part_settings, tar_fork_pid);
2024 else if (Backup_Method == BM_DD)
2025 return Backup_Image(part_settings);
2026 else if (Backup_Method == BM_FLASH_UTILS)
2027 return Backup_Dump_Image(part_settings);
Dees_Troy2673cec2013-04-02 20:22:16 +00002028 LOGERR("Unknown backup method for '%s'\n", Mount_Point.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04002029 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002030}
2031
bigbiffce8f83c2015-12-12 18:30:21 -05002032bool TWPartition::Restore(PartitionSettings *part_settings) {
Matt Mower3c366972015-12-25 19:28:31 -06002033 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002034 LOGINFO("Restore filename is: %s/%s\n", part_settings->Backup_Folder.c_str(), Backup_FileName.c_str());
Gary Peck43acadf2012-11-21 21:19:01 -08002035
bigbiffce8f83c2015-12-12 18:30:21 -05002036 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002037
2038 if (Is_File_System(Restore_File_System))
bigbiffce8f83c2015-12-12 18:30:21 -05002039 return Restore_Tar(part_settings);
2040 else if (Is_Image(Restore_File_System))
2041 return Restore_Image(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002042
2043 LOGERR("Unknown restore method for '%s'\n", Mount_Point.c_str());
2044 return false;
2045}
2046
bigbiffce8f83c2015-12-12 18:30:21 -05002047string TWPartition::Get_Restore_File_System(PartitionSettings *part_settings) {
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002048 size_t first_period, second_period;
2049 string Restore_File_System;
2050
Gary Peck43acadf2012-11-21 21:19:01 -08002051 // Parse backup filename to extract the file system before wiping
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002052 first_period = Backup_FileName.find(".");
Gary Peck43acadf2012-11-21 21:19:01 -08002053 if (first_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002054 LOGERR("Unable to find file system (first period).\n");
thatd43bf2d2014-09-21 23:13:02 +02002055 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08002056 }
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002057 Restore_File_System = Backup_FileName.substr(first_period + 1, Backup_FileName.size() - first_period - 1);
Gary Peck43acadf2012-11-21 21:19:01 -08002058 second_period = Restore_File_System.find(".");
2059 if (second_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002060 LOGERR("Unable to find file system (second period).\n");
thatd43bf2d2014-09-21 23:13:02 +02002061 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08002062 }
2063 Restore_File_System.resize(second_period);
Matt Mowera0cd91d2016-12-30 18:21:42 -06002064 LOGINFO("Restore file system is: '%s'.\n", Restore_File_System.c_str());
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002065 return Restore_File_System;
Dees_Troy51a0e822012-09-05 15:24:24 -04002066}
2067
2068string TWPartition::Backup_Method_By_Name() {
bigbiffce8f83c2015-12-12 18:30:21 -05002069 if (Backup_Method == BM_NONE)
Dees_Troy38bd7602012-09-14 13:33:53 -04002070 return "none";
bigbiffce8f83c2015-12-12 18:30:21 -05002071 else if (Backup_Method == BM_FILES)
Dees_Troy38bd7602012-09-14 13:33:53 -04002072 return "files";
bigbiffce8f83c2015-12-12 18:30:21 -05002073 else if (Backup_Method == BM_DD)
Dees_Troy38bd7602012-09-14 13:33:53 -04002074 return "dd";
bigbiffce8f83c2015-12-12 18:30:21 -05002075 else if (Backup_Method == BM_FLASH_UTILS)
Dees_Troy38bd7602012-09-14 13:33:53 -04002076 return "flash_utils";
2077 else
2078 return "undefined";
2079 return "ERROR!";
Dees_Troy51a0e822012-09-05 15:24:24 -04002080}
2081
2082bool TWPartition::Decrypt(string Password) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002083 LOGINFO("STUB TWPartition::Decrypt, password: '%s'\n", Password.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04002084 // Is this needed?
Dees_Troy51a0e822012-09-05 15:24:24 -04002085 return 1;
2086}
2087
2088bool TWPartition::Wipe_Encryption() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002089 bool Save_Data_Media = Has_Data_Media;
Ethan Yonker93382822018-11-01 15:25:31 -05002090 bool ret = false;
2091 BasePartition* base_partition = make_partition();
2092
2093 if (!base_partition->PreWipeEncryption())
2094 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002095
dianlujitao4879b372018-12-03 18:45:47 +08002096 Find_Actual_Block_Device();
2097 if (!Is_Present) {
2098 LOGINFO("Block device not present, cannot format %s.\n", Display_Name.c_str());
2099 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2100 return false;
2101 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002102
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002103#ifdef TW_INCLUDE_CRYPTO
bigbiff7ba75002020-04-11 20:47:09 -04002104 if (!UnMount(true))
2105 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002106 if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Matt Mower2b18a532015-02-20 16:58:05 -06002107 if (delete_crypto_blk_dev((char*)("userdata")) != 0) {
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002108 LOGERR("Error deleting crypto block device, continuing anyway.\n");
2109 }
2110 }
2111#endif
dianlujitao4879b372018-12-03 18:45:47 +08002112 Has_Data_Media = false;
Ethan Yonker93382822018-11-01 15:25:31 -05002113 Decrypted_Block_Device = "";
Dees_Troy74fb2e92013-04-15 14:35:47 +00002114 Is_Decrypted = false;
2115 Is_Encrypted = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08002116 if (Wipe(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002117 Has_Data_Media = Save_Data_Media;
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002118 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Ethan Yonker83e82572014-04-04 10:59:28 -05002119#ifndef TW_OEM_BUILD
bigbiff25d25b92020-06-19 16:07:38 -04002120 gui_msg("format_data_msg=You may need to reboot recovery to be able to use /data again.");
Ethan Yonker83e82572014-04-04 10:59:28 -05002121#endif
bigbiff2d548672021-07-09 20:08:44 -04002122 if (Is_FBE) {
2123 gui_msg(Msg(msg::kWarning, "data_media_fbe_msg=TWRP will not recreate /data/media on an FBE device. Please reboot into your rom to create /data/media."));
Captain Throwback63573b52021-10-02 20:47:33 -04002124 } else {
2125 if (Has_Data_Media && !Symlink_Mount_Point.empty()) {
2126 if (Mount(false))
2127 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
2128 }
bigbiff2d548672021-07-09 20:08:44 -04002129 }
2130
Ethan Yonker93382822018-11-01 15:25:31 -05002131 ret = true;
2132 if (!Key_Directory.empty())
2133 ret = PartitionManager.Wipe_By_Path(Key_Directory);
2134 if (ret)
2135 ret = base_partition->PostWipeEncryption();
2136 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002137 } else {
2138 Has_Data_Media = Save_Data_Media;
Ethan Yonker74db1572015-10-28 12:44:49 -05002139 gui_err("format_data_err=Unable to format to remove encryption.");
Ethan Yonker726a0202014-12-16 20:01:38 -06002140 if (Has_Data_Media && Mount(false))
2141 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Ethan Yonker93382822018-11-01 15:25:31 -05002142 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002143 }
Ethan Yonker93382822018-11-01 15:25:31 -05002144exit:
2145 delete base_partition;
2146 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002147}
2148
2149void TWPartition::Check_FS_Type() {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002150 const char* type;
2151 blkid_probe pr;
Dees_Troy5bf43922012-09-07 16:07:55 -04002152
Dees_Troy68cab492012-12-12 19:29:35 +00002153 if (Fstab_File_System == "yaffs2" || Fstab_File_System == "mtd" || Fstab_File_System == "bml" || Ignore_Blkid)
2154 return; // Running blkid on some mtd devices causes a massive crash or needs to be skipped
Dees_Troy5bf43922012-09-07 16:07:55 -04002155
Dees_Troy38bd7602012-09-14 13:33:53 -04002156 Find_Actual_Block_Device();
Dees_Troy8170a922012-09-18 15:40:25 -04002157 if (!Is_Present)
2158 return;
Dees_Troy51127312012-09-08 13:08:49 -04002159
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002160 pr = blkid_new_probe_from_filename(Actual_Block_Device.c_str());
2161 if (blkid_do_fullprobe(pr)) {
2162 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002163 LOGINFO("Can't probe device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002164 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04002165 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002166
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05002167 if (blkid_probe_lookup_value(pr, "TYPE", &type, NULL) < 0) {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002168 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002169 LOGINFO("can't find filesystem on device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002170 return;
2171 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002172
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002173 Current_File_System = type;
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002174 blkid_free_probe(pr);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002175 if (fs_flags.size() > 1) {
2176 std::vector<partition_fs_flags_struct>::iterator iter;
2177 std::vector<partition_fs_flags_struct>::iterator found = fs_flags.begin();
2178
2179 for (iter = fs_flags.begin(); iter != fs_flags.end(); iter++) {
2180 if (iter->File_System == Current_File_System) {
2181 found = iter;
2182 break;
2183 }
2184 }
2185 // If we don't find a match, we default the flags to the first set of flags that we received from the fstab
2186 if (Mount_Flags != found->Mount_Flags || Mount_Options != found->Mount_Options) {
2187 Mount_Flags = found->Mount_Flags;
2188 Mount_Options = found->Mount_Options;
2189 LOGINFO("Mount_Flags: %i, Mount_Options: %s\n", Mount_Flags, Mount_Options.c_str());
2190 }
2191 }
Dees_Troy51a0e822012-09-05 15:24:24 -04002192}
2193
dianlujitao4879b372018-12-03 18:45:47 +08002194bool TWPartition::Wipe_EXTFS(string File_System) {
bigbiff7ba75002020-04-11 20:47:09 -04002195 if (!UnMount(true))
2196 return false;
2197
dianlujitao4879b372018-12-03 18:45:47 +08002198#if PLATFORM_SDK_VERSION < 28
bigbiffad58e1b2020-07-06 20:24:34 -04002199 if (!TWFunc::Path_Exists("/system/bin/mke2fs"))
dianlujitao4879b372018-12-03 18:45:47 +08002200#else
bigbiffad58e1b2020-07-06 20:24:34 -04002201 if (!TWFunc::Path_Exists("/system/bin/mke2fs") || !TWFunc::Path_Exists("/system/bin/e2fsdroid"))
dianlujitao4879b372018-12-03 18:45:47 +08002202#endif
Dees_Troy38bd7602012-09-14 13:33:53 -04002203 return Wipe_RMRF();
2204
dianlujitao4879b372018-12-03 18:45:47 +08002205 int ret;
2206 bool NeedPreserveFooter = true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002207
Ethan Yonker25f20c12014-10-14 09:04:43 -05002208 Find_Actual_Block_Device();
2209 if (!Is_Present) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002210 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2211 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Ethan Yonker25f20c12014-10-14 09:04:43 -05002212 return false;
2213 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002214
dianlujitao4879b372018-12-03 18:45:47 +08002215 /**
2216 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2217 * so there's no need to preserve footer.
2218 */
2219 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2220 Crypto_Key_Location != "footer") {
2221 NeedPreserveFooter = false;
2222 }
2223
2224 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2225 if (!dev_sz)
2226 return false;
2227
2228 if (NeedPreserveFooter)
2229 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2230
Dees Troy9a4d7402019-03-21 14:17:28 -04002231 char dout[16];
2232 sprintf(dout, "%llu", dev_sz / 4096);
2233
2234 //string size_str =to_string(dev_sz / 4096);
2235 string size_str = dout;
dianlujitao4879b372018-12-03 18:45:47 +08002236 string Command;
2237
2238 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mke2fs"));
2239
2240 // Execute mke2fs to create empty ext4 filesystem
2241 Command = "mke2fs -t " + File_System + " -b 4096 " + Actual_Block_Device + " " + size_str;
2242 LOGINFO("mke2fs command: %s\n", Command.c_str());
2243 ret = TWFunc::Exec_Cmd(Command);
2244 if (ret) {
2245 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2246 return false;
2247 }
2248
bigbiffad58e1b2020-07-06 20:24:34 -04002249 if (TWFunc::Path_Exists("/system/bin/e2fsdroid")) {
dianlujitao3cf05a52019-05-15 15:33:27 +08002250 const string& File_Contexts_Entry = (Mount_Point == "/system_root" ? "/" : Mount_Point);
2251 char *secontext = NULL;
2252 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, File_Contexts_Entry.c_str(), S_IFDIR) < 0) {
2253 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
2254 } else {
2255 // Execute e2fsdroid to initialize selinux context
bigbiff5b911ca2020-07-18 10:46:09 -04002256 if (Mount_Point == "/persist") {
2257 Mount(true);
2258 TWFunc::removeDir("/persist/lost+found", false);
2259 UnMount(true);
2260 }
dianlujitao3cf05a52019-05-15 15:33:27 +08002261 Command = "e2fsdroid -e -S /file_contexts -a " + File_Contexts_Entry + " " + Actual_Block_Device;
2262 LOGINFO("e2fsdroid command: %s\n", Command.c_str());
2263 ret = TWFunc::Exec_Cmd(Command);
2264 if (ret) {
2265 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2266 return false;
2267 }
dianlujitao4879b372018-12-03 18:45:47 +08002268 }
2269 } else {
2270 LOGINFO("e2fsdroid not present\n");
2271 }
2272
2273 if (NeedPreserveFooter)
2274 Wipe_Crypto_Key();
2275 Current_File_System = File_System;
2276 Recreate_AndSec_Folder();
2277 gui_msg("done=Done.");
2278 return true;
2279}
2280
2281bool TWPartition::Wipe_EXT4() {
2282#ifdef USE_EXT4
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002283 int ret;
dianlujitao4879b372018-12-03 18:45:47 +08002284 bool NeedPreserveFooter = true;
2285
bigbiff7ba75002020-04-11 20:47:09 -04002286 if (!UnMount(true))
2287 return false;
2288
dianlujitao4879b372018-12-03 18:45:47 +08002289 Find_Actual_Block_Device();
2290 if (!Is_Present) {
2291 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2292 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2293 return false;
2294 }
dianlujitao4879b372018-12-03 18:45:47 +08002295
2296 /**
2297 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2298 * so there's no need to preserve footer.
2299 */
2300 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2301 Crypto_Key_Location != "footer") {
2302 NeedPreserveFooter = false;
2303 }
2304
2305 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2306 if (!dev_sz)
2307 return false;
2308
2309 if (NeedPreserveFooter)
2310 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2311
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002312 char *secontext = NULL;
2313
Greg Wallace4b44fef2015-12-29 15:33:24 -05002314 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("make_ext4fs"));
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002315
Dees Troy99c8dbf2014-03-10 16:53:58 +00002316 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, Mount_Point.c_str(), S_IFDIR) < 0) {
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002317 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
dianlujitao4879b372018-12-03 18:45:47 +08002318 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), NULL);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002319 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002320 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), selinux_handle);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002321 }
2322 if (ret != 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002323 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troya95f55c2013-08-17 13:14:43 +00002324 return false;
2325 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002326 if (NeedPreserveFooter)
2327 Wipe_Crypto_Key();
bigbiff bigbiffc49d7062013-10-11 20:28:00 -04002328 string sedir = Mount_Point + "/lost+found";
2329 PartitionManager.Mount_By_Path(sedir.c_str(), true);
2330 rmdir(sedir.c_str());
2331 mkdir(sedir.c_str(), S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP);
Dees_Troya95f55c2013-08-17 13:14:43 +00002332 return true;
2333 }
2334#else
dianlujitao4879b372018-12-03 18:45:47 +08002335 return Wipe_EXTFS("ext4");
Dees_Troya95f55c2013-08-17 13:14:43 +00002336#endif
Dees_Troy51a0e822012-09-05 15:24:24 -04002337}
2338
2339bool TWPartition::Wipe_FAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002340 string command;
Dees_Troy38bd7602012-09-14 13:33:53 -04002341
bigbiff7ba75002020-04-11 20:47:09 -04002342 if (!UnMount(true))
2343 return false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002344
bigbiffad58e1b2020-07-06 20:24:34 -04002345 if (TWFunc::Path_Exists("/system/bin/mkfs.fat")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002346 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.fat"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002347 Find_Actual_Block_Device();
Matt Mower18794c82015-11-11 16:22:45 -06002348 command = "mkfs.fat " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002349 if (TWFunc::Exec_Cmd(command) == 0) {
Gary Pecke8bc5d72012-12-21 06:45:25 -08002350 Current_File_System = "vfat";
Dees_Troye58d5262012-09-21 12:27:57 -04002351 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002352 gui_msg("done=Done.");
Dees_Troy38bd7602012-09-14 13:33:53 -04002353 return true;
2354 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002355 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04002356 return false;
2357 }
2358 return true;
2359 }
2360 else
2361 return Wipe_RMRF();
2362
2363 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002364}
2365
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002366bool TWPartition::Wipe_EXFAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002367 string command;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002368
bigbiff7ba75002020-04-11 20:47:09 -04002369 if (!UnMount(true))
2370 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04002371 if (TWFunc::Path_Exists("/system/bin/mkexfatfs")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002372 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkexfatfs"));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002373 Find_Actual_Block_Device();
2374 command = "mkexfatfs " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002375 if (TWFunc::Exec_Cmd(command) == 0) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002376 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002377 gui_msg("done=Done.");
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002378 return true;
2379 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002380 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002381 return false;
2382 }
2383 return true;
2384 }
2385 return false;
2386}
2387
Dees_Troy38bd7602012-09-14 13:33:53 -04002388bool TWPartition::Wipe_MTD() {
2389 if (!UnMount(true))
2390 return false;
2391
Greg Wallace4b44fef2015-12-29 15:33:24 -05002392 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("MTD"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002393
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002394 mtd_scan_partitions();
2395 const MtdPartition* mtd = mtd_find_partition_by_name(MTD_Name.c_str());
2396 if (mtd == NULL) {
2397 LOGERR("No mtd partition named '%s'", MTD_Name.c_str());
2398 return false;
2399 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002400
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002401 MtdWriteContext* ctx = mtd_write_partition(mtd);
2402 if (ctx == NULL) {
2403 LOGERR("Can't write '%s', failed to format.", MTD_Name.c_str());
2404 return false;
2405 }
2406 if (mtd_erase_blocks(ctx, -1) == -1) {
2407 mtd_write_close(ctx);
2408 LOGERR("Failed to format '%s'", MTD_Name.c_str());
2409 return false;
2410 }
2411 if (mtd_write_close(ctx) != 0) {
2412 LOGERR("Failed to close '%s'", MTD_Name.c_str());
2413 return false;
2414 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08002415 Current_File_System = "yaffs2";
Dees_Troye58d5262012-09-21 12:27:57 -04002416 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002417 gui_msg("done=Done.");
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002418 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002419}
2420
2421bool TWPartition::Wipe_RMRF() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002422 if (!Mount(true))
2423 return false;
Ethan Yonker726a0202014-12-16 20:01:38 -06002424 // This is the only wipe that leaves the partition mounted, so we
2425 // must manually remove the partition from MTP if it is a storage
2426 // partition.
2427 if (Is_Storage)
2428 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
Dees_Troy38bd7602012-09-14 13:33:53 -04002429
Ethan Yonker74db1572015-10-28 12:44:49 -05002430 gui_msg(Msg("remove_all=Removing all files under '{1}'")(Mount_Point));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002431 TWFunc::removeDir(Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04002432 Recreate_AndSec_Folder();
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002433 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002434}
2435
Dees_Troye5017042013-08-29 16:38:55 +00002436bool TWPartition::Wipe_F2FS() {
systemaddb475c92021-08-12 20:33:20 +02002437 std::string f2fs_command;
Dees_Troye5017042013-08-29 16:38:55 +00002438
bigbiff7ba75002020-04-11 20:47:09 -04002439 if (!UnMount(true))
2440 return false;
dianlujitao4879b372018-12-03 18:45:47 +08002441
bigbiffad58e1b2020-07-06 20:24:34 -04002442 if (TWFunc::Path_Exists("/system/bin/mkfs.f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002443 f2fs_command = "/system/bin/mkfs.f2fs";
bigbiffad58e1b2020-07-06 20:24:34 -04002444 else if (TWFunc::Path_Exists("/system/bin/make_f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002445 f2fs_command = "/system/bin/make_f2fs -g android";
bigbiff7ba75002020-04-11 20:47:09 -04002446 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002447 LOGINFO("mkfs.f2fs binary not found, using rm -rf to wipe.\n");
Dees_Troye5017042013-08-29 16:38:55 +00002448 return Wipe_RMRF();
2449 }
bigbiff7ba75002020-04-11 20:47:09 -04002450
2451 bool NeedPreserveFooter = true;
systemaddb475c92021-08-12 20:33:20 +02002452 bool needs_casefold = false;
2453 bool needs_projid = false;
bigbiff7ba75002020-04-11 20:47:09 -04002454
2455 Find_Actual_Block_Device();
2456 if (!Is_Present) {
2457 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2458 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2459 return false;
2460 }
systemaddb475c92021-08-12 20:33:20 +02002461
2462 needs_casefold = android::base::GetBoolProperty("external_storage.casefold.enabled", false);
Captain Throwback88338682022-05-21 10:44:13 -04002463 needs_projid = android::base::GetBoolProperty("external_storage.projid.enabled", false);
bigbiff7ba75002020-04-11 20:47:09 -04002464 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2465 if (!dev_sz)
2466 return false;
2467
2468 if (NeedPreserveFooter)
2469 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
bigbiff7ba75002020-04-11 20:47:09 -04002470 char dev_sz_str[48];
2471 sprintf(dev_sz_str, "%llu", (dev_sz / 4096));
systemaddb475c92021-08-12 20:33:20 +02002472 if(needs_projid)
2473 f2fs_command += " -O project_quota,extra_attr";
2474
2475 if(needs_casefold)
2476 f2fs_command += " -O casefold -C utf8";
2477
2478 f2fs_command += " " + Actual_Block_Device + " " + dev_sz_str;
2479
Captain Throwback88338682022-05-21 10:44:13 -04002480 if (TWFunc::Path_Exists("/system/bin/sload_f2fs")) {
2481 f2fs_command += " && sload_f2fs -t /data " + Actual_Block_Device;
bigbiff7ba75002020-04-11 20:47:09 -04002482 }
2483
2484 /**
2485 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2486 * so there's no need to preserve footer.
2487 */
2488 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2489 Crypto_Key_Location != "footer") {
2490 NeedPreserveFooter = false;
2491 }
systemaddb475c92021-08-12 20:33:20 +02002492 LOGINFO("mkfs.f2fs command: %s\n", f2fs_command.c_str());
2493 if (TWFunc::Exec_Cmd(f2fs_command) == 0) {
bigbiff7ba75002020-04-11 20:47:09 -04002494 if (NeedPreserveFooter)
2495 Wipe_Crypto_Key();
2496 Recreate_AndSec_Folder();
2497 gui_msg("done=Done.");
2498 return true;
2499 } else {
2500 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2501 return false;
2502 }
2503 return true;
Dees_Troye5017042013-08-29 16:38:55 +00002504}
2505
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002506bool TWPartition::Wipe_NTFS() {
2507 string command;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002508 string Ntfsmake_Binary;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002509
bigbiff7ba75002020-04-11 20:47:09 -04002510 if (!UnMount(true))
2511 return false;
2512
bigbiffad58e1b2020-07-06 20:24:34 -04002513 if (TWFunc::Path_Exists("/system/bin/mkntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002514 Ntfsmake_Binary = "mkntfs";
bigbiffad58e1b2020-07-06 20:24:34 -04002515 else if (TWFunc::Path_Exists("/system/bin/mkfs.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002516 Ntfsmake_Binary = "mkfs.ntfs";
2517 else
2518 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002519
Greg Wallace4b44fef2015-12-29 15:33:24 -05002520 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)(Ntfsmake_Binary));
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002521 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04002522 command = "/system/bin/" + Ntfsmake_Binary + " " + Actual_Block_Device;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002523 if (TWFunc::Exec_Cmd(command) == 0) {
2524 Recreate_AndSec_Folder();
2525 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002526 return true;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002527 } else {
2528 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2529 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002530 }
2531 return false;
2532}
2533
Dees_Troy51a0e822012-09-05 15:24:24 -04002534bool TWPartition::Wipe_Data_Without_Wiping_Media() {
Ethan Yonker83e82572014-04-04 10:59:28 -05002535#ifdef TW_OEM_BUILD
2536 // In an OEM Build we want to do a full format
2537 return Wipe_Encryption();
2538#else
Ethan Yonker66a19492015-12-10 10:19:45 -06002539 bool ret = false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002540
Dees_Troy38bd7602012-09-14 13:33:53 -04002541 if (!Mount(true))
2542 return false;
2543
Ethan Yonker74db1572015-10-28 12:44:49 -05002544 gui_msg("wiping_data=Wiping data without wiping /data/media ...");
Ethan Yonker66a19492015-12-10 10:19:45 -06002545 ret = Wipe_Data_Without_Wiping_Media_Func(Mount_Point + "/");
2546 if (ret)
2547 gui_msg("done=Done.");
2548 return ret;
2549#endif // ifdef TW_OEM_BUILD
2550}
2551
2552bool TWPartition::Wipe_Data_Without_Wiping_Media_Func(const string& parent __unused) {
2553 string dir;
Dees_Troy38bd7602012-09-14 13:33:53 -04002554
2555 DIR* d;
Ethan Yonker66a19492015-12-10 10:19:45 -06002556 d = opendir(parent.c_str());
Dees_Troy16b74352012-11-14 22:27:31 +00002557 if (d != NULL) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002558 struct dirent* de;
2559 while ((de = readdir(d)) != NULL) {
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002560 if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002561
Ethan Yonker66a19492015-12-10 10:19:45 -06002562 dir = parent;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002563 dir.append(de->d_name);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002564 if (wipe_exclusions.check_skip_dirs(dir)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002565 LOGINFO("skipped '%s'\n", dir.c_str());
2566 continue;
2567 }
Dees_Troyce675462013-01-09 19:48:21 +00002568 if (de->d_type == DT_DIR) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002569 dir.append("/");
2570 if (!Wipe_Data_Without_Wiping_Media_Func(dir)) {
2571 closedir(d);
2572 return false;
2573 }
2574 rmdir(dir.c_str());
bigbiff bigbiff98f1f902013-01-19 18:46:13 -05002575 } else if (de->d_type == DT_REG || de->d_type == DT_LNK || de->d_type == DT_FIFO || de->d_type == DT_SOCK) {
nkk719efbe762017-06-13 19:49:05 +03002576 if (unlink(dir.c_str()) != 0)
Ethan Yonker79f88bd2016-12-09 14:52:12 -06002577 LOGINFO("Unable to unlink '%s': %s\n", dir.c_str(), strerror(errno));
Dees_Troyce675462013-01-09 19:48:21 +00002578 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002579 }
2580 closedir(d);
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002581
Dees_Troy16b74352012-11-14 22:27:31 +00002582 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04002583 }
Ethan Yonker74db1572015-10-28 12:44:49 -05002584 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy16b74352012-11-14 22:27:31 +00002585 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002586}
2587
dianlujitao4879b372018-12-03 18:45:47 +08002588void TWPartition::Wipe_Crypto_Key() {
2589 Find_Actual_Block_Device();
2590 if (Crypto_Key_Location.empty())
2591 return;
2592 else if (Crypto_Key_Location == "footer") {
2593 int fd = open(Actual_Block_Device.c_str(), O_RDWR);
2594 if (fd < 0) {
2595 gui_print_color("warning", "Unable to open '%s' to wipe crypto key\n", Actual_Block_Device.c_str());
2596 return;
2597 }
2598
2599 unsigned int block_count;
2600 if ((ioctl(fd, BLKGETSIZE, &block_count)) == -1) {
2601 gui_print_color("warning", "Unable to get block size for wiping crypto footer.\n");
2602 } else {
2603 int newlen = Length < 0 ? -Length : CRYPT_FOOTER_OFFSET;
2604 off64_t offset = ((off64_t)block_count * 512) - newlen;
2605 if (lseek64(fd, offset, SEEK_SET) == -1) {
2606 gui_print_color("warning", "Unable to lseek64 for wiping crypto footer.\n");
2607 } else {
2608 void* buffer = malloc(newlen);
2609 if (!buffer) {
2610 gui_print_color("warning", "Failed to malloc for wiping crypto footer.\n");
2611 } else {
2612 memset(buffer, 0, newlen);
2613 int ret = write(fd, buffer, newlen);
2614 if (ret != newlen) {
2615 gui_print_color("warning", "Failed to wipe crypto footer.\n");
2616 } else {
2617 LOGINFO("Successfully wiped crypto footer.\n");
2618 }
2619 free(buffer);
2620 }
2621 }
2622 }
2623 close(fd);
2624 } else {
2625 if (TWFunc::IOCTL_Get_Block_Size(Crypto_Key_Location.c_str()) >= 16384LLU) {
2626 string Command = "dd of='" + Crypto_Key_Location + "' if=/dev/zero bs=16384 count=1";
2627 TWFunc::Exec_Cmd(Command);
2628 } else {
2629 LOGINFO("Crypto key location reports size < 16K so not wiping crypto footer.\n");
2630 }
2631 }
2632}
2633
bigbiffce8f83c2015-12-12 18:30:21 -05002634bool TWPartition::Backup_Tar(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002635 string Full_FileName;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002636 twrpTar tar;
bigbiff bigbiffcdcfee42013-02-27 21:11:26 -05002637
Dees_Troy43d8b002012-09-17 16:00:01 -04002638 if (!Mount(true))
2639 return false;
2640
Ian Macdonalda3b25a32019-06-16 22:39:14 +02002641 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Backup_Display_Name, gui_parse_text("{@backing}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002642 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002643
Ethan Yonker472f5062016-02-25 13:47:30 -06002644 DataManager::GetValue(TW_USE_COMPRESSION_VAR, tar.use_compression);
Matt Mowerbb81e5d2014-03-20 18:05:41 -05002645
Dees_Troy83bd4832013-05-04 12:39:56 +00002646#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
Ethan Yonker472f5062016-02-25 13:47:30 -06002647 if (Can_Encrypt_Backup) {
2648 DataManager::GetValue("tw_encrypt_backup", tar.use_encryption);
2649 if (tar.use_encryption) {
2650 if (Use_Userdata_Encryption)
2651 tar.userdata_encryption = tar.use_encryption;
2652 string Password;
2653 DataManager::GetValue("tw_backup_password", Password);
2654 tar.setpassword(Password);
2655 } else {
2656 tar.use_encryption = 0;
2657 }
Dees_Troy83bd4832013-05-04 12:39:56 +00002658 }
2659#endif
Dees_Troy43d8b002012-09-17 16:00:01 -04002660
Ethan Yonker472f5062016-02-25 13:47:30 -06002661 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002662 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker01f4e032017-02-03 15:30:52 -06002663 if (Has_Data_Media)
2664 gui_msg(Msg(msg::kWarning, "backup_storage_warning=Backups of {1} do not include any files in internal storage such as pictures or downloads.")(Display_Name));
Noah Jacobson81d638d2019-04-28 00:10:07 -04002665 if (Mount_Point == "/data" && DataManager::GetIntValue(TW_IS_FBE)) {
2666 std::vector<users_struct>::iterator iter;
2667 std::vector<users_struct>* userList = PartitionManager.Get_Users_List();
2668 for (iter = userList->begin(); iter != userList->end(); iter++) {
2669 if (!(*iter).isDecrypted && (*iter).userId != "0") {
2670 gui_msg(Msg(msg::kWarning,
2671 "backup_storage_undecrypt_warning=Backup will not include some files from user {1} "
2672 "because the user is not decrypted.")((*iter).userId));
2673 backup_exclusions.add_absolute_dir("/data/system_ce/" + (*iter).userId);
2674 backup_exclusions.add_absolute_dir("/data/misc_ce/" + (*iter).userId);
2675 backup_exclusions.add_absolute_dir("/data/vendor_ce/" + (*iter).userId);
2676 backup_exclusions.add_absolute_dir("/data/media/" + (*iter).userId);
2677 backup_exclusions.add_absolute_dir("/data/user/" + (*iter).userId);
2678 }
2679 }
2680 }
bigbiffce8f83c2015-12-12 18:30:21 -05002681 tar.part_settings = part_settings;
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002682 tar.backup_exclusions = &backup_exclusions;
Dees Troye0a433a2013-12-02 04:10:37 +00002683 tar.setdir(Backup_Path);
2684 tar.setfn(Full_FileName);
2685 tar.setsize(Backup_Size);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002686 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002687 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002688 if (tar.createTarFork(tar_fork_pid) != 0)
Dees Troye0a433a2013-12-02 04:10:37 +00002689 return false;
Dees_Troy43d8b002012-09-17 16:00:01 -04002690 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002691}
2692
bigbiffce8f83c2015-12-12 18:30:21 -05002693bool TWPartition::Backup_Image(PartitionSettings *part_settings) {
2694 string Full_FileName, adb_file_name;
igoriok87e3d932013-01-31 21:03:53 +02002695
Ethan Yonker74db1572015-10-28 12:44:49 -05002696 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2697 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002698
Ethan Yonker472f5062016-02-25 13:47:30 -06002699 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Dees_Troy43d8b002012-09-17 16:00:01 -04002700
bigbiffce8f83c2015-12-12 18:30:21 -05002701 if (part_settings->adbbackup) {
2702 Full_FileName = TW_ADB_BACKUP;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002703 adb_file_name = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002704 }
2705 else
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002706 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002707
2708 part_settings->total_restore_size = Backup_Size;
2709
2710 if (part_settings->adbbackup) {
2711 if (!twadbbu::Write_TWIMG(adb_file_name, Backup_Size))
2712 return false;
2713 }
2714
2715 if (!Raw_Read_Write(part_settings))
Ethan Yonker472f5062016-02-25 13:47:30 -06002716 return false;
2717
bigbiffce8f83c2015-12-12 18:30:21 -05002718 if (part_settings->adbbackup) {
2719 if (!twadbbu::Write_TWEOF())
2720 return false;
Dees_Troy7c2dec82012-09-26 09:49:14 -04002721 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002722 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002723}
2724
bigbiffce8f83c2015-12-12 18:30:21 -05002725bool TWPartition::Raw_Read_Write(PartitionSettings *part_settings) {
2726 unsigned long long RW_Block_Size, Remain = Backup_Size;
2727 int src_fd = -1, dest_fd = -1;
2728 ssize_t bs;
Ethan Yonker472f5062016-02-25 13:47:30 -06002729 bool ret = false;
2730 void* buffer = NULL;
2731 unsigned long long backedup_size = 0;
bigbiffce8f83c2015-12-12 18:30:21 -05002732 string srcfn, destfn;
Ethan Yonker472f5062016-02-25 13:47:30 -06002733
bigbiffce8f83c2015-12-12 18:30:21 -05002734 if (part_settings->PM_Method == PM_BACKUP) {
2735 srcfn = Actual_Block_Device;
2736 if (part_settings->adbbackup)
2737 destfn = TW_ADB_BACKUP;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002738 else {
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002739 destfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002740 }
bigbiffce8f83c2015-12-12 18:30:21 -05002741 }
2742 else {
2743 destfn = Actual_Block_Device;
2744 if (part_settings->adbbackup) {
2745 srcfn = TW_ADB_RESTORE;
2746 } else {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002747 srcfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002748 Remain = TWFunc::Get_File_Size(srcfn);
2749 }
2750 }
Ethan Yonker472f5062016-02-25 13:47:30 -06002751
bigbiffce8f83c2015-12-12 18:30:21 -05002752 src_fd = open(srcfn.c_str(), O_RDONLY | O_LARGEFILE);
Ethan Yonker472f5062016-02-25 13:47:30 -06002753 if (src_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002754 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(srcfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002755 return false;
2756 }
bigbiffce8f83c2015-12-12 18:30:21 -05002757
2758 dest_fd = open(destfn.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, S_IRUSR | S_IWUSR);
Ethan Yonker472f5062016-02-25 13:47:30 -06002759 if (dest_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002760 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(destfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002761 goto exit;
2762 }
bigbiff bigbiff19fb79c2016-09-05 21:04:51 -04002763
bigbiffce8f83c2015-12-12 18:30:21 -05002764 LOGINFO("Reading '%s', writing '%s'\n", srcfn.c_str(), destfn.c_str());
2765
2766 if (part_settings->adbbackup) {
2767 RW_Block_Size = MAX_ADB_READ;
2768 bs = MAX_ADB_READ;
2769 }
2770 else {
2771 RW_Block_Size = 1048576LLU; // 1MB
2772 bs = (ssize_t)(RW_Block_Size);
2773 }
2774
Ethan Yonker472f5062016-02-25 13:47:30 -06002775 buffer = malloc((size_t)bs);
2776 if (!buffer) {
2777 LOGINFO("Raw_Read_Write failed to malloc\n");
2778 goto exit;
2779 }
bigbiffce8f83c2015-12-12 18:30:21 -05002780
2781 if (part_settings->progress)
2782 part_settings->progress->SetPartitionSize(part_settings->total_restore_size);
2783
Ethan Yonker472f5062016-02-25 13:47:30 -06002784 while (Remain > 0) {
2785 if (Remain < RW_Block_Size)
bigbiffce8f83c2015-12-12 18:30:21 -05002786 bs = (ssize_t)(Remain);
Matt Mowera8a89d12016-12-30 18:10:37 -06002787 if (read(src_fd, buffer, bs) != bs) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002788 LOGINFO("Error reading source fd (%s)\n", strerror(errno));
2789 goto exit;
2790 }
2791 if (write(dest_fd, buffer, bs) != bs) {
2792 LOGINFO("Error writing destination fd (%s)\n", strerror(errno));
2793 goto exit;
2794 }
2795 backedup_size += (unsigned long long)(bs);
Matt Mower029a82d2017-01-08 13:12:38 -06002796 Remain -= (unsigned long long)(bs);
bigbiffce8f83c2015-12-12 18:30:21 -05002797 if (part_settings->progress)
2798 part_settings->progress->UpdateSize(backedup_size);
Ethan Yonker472f5062016-02-25 13:47:30 -06002799 if (PartitionManager.Check_Backup_Cancel() != 0)
2800 goto exit;
2801 }
bigbiffce8f83c2015-12-12 18:30:21 -05002802 if (part_settings->progress)
2803 part_settings->progress->UpdateDisplayDetails(true);
Ethan Yonker472f5062016-02-25 13:47:30 -06002804 fsync(dest_fd);
nailyka083dc62016-11-11 21:41:28 +01002805
2806 if (!part_settings->adbbackup && part_settings->PM_Method == PM_BACKUP) {
2807 tw_set_default_metadata(destfn.c_str());
2808 LOGINFO("Restored default metadata for %s\n", destfn.c_str());
2809 }
2810
Ethan Yonker472f5062016-02-25 13:47:30 -06002811 ret = true;
2812exit:
2813 if (src_fd >= 0)
2814 close(src_fd);
2815 if (dest_fd >= 0)
2816 close(dest_fd);
2817 if (buffer)
2818 free(buffer);
2819 return ret;
2820}
2821
bigbiffce8f83c2015-12-12 18:30:21 -05002822bool TWPartition::Backup_Dump_Image(PartitionSettings *part_settings) {
Vojtech Bocek05534202013-09-11 08:11:56 +02002823 string Full_FileName, Command;
Dees_Troy43d8b002012-09-17 16:00:01 -04002824
Ethan Yonker74db1572015-10-28 12:44:49 -05002825 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2826 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002827
bigbiffce8f83c2015-12-12 18:30:21 -05002828 if (part_settings->progress)
2829 part_settings->progress->SetPartitionSize(Backup_Size);
Dees_Troy43d8b002012-09-17 16:00:01 -04002830
Ethan Yonker472f5062016-02-25 13:47:30 -06002831 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002832 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Dees_Troy43d8b002012-09-17 16:00:01 -04002833
2834 Command = "dump_image " + MTD_Name + " '" + Full_FileName + "'";
bigbiffce8f83c2015-12-12 18:30:21 -05002835
Dees_Troy2673cec2013-04-02 20:22:16 +00002836 LOGINFO("Backup command: '%s'\n", Command.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02002837 TWFunc::Exec_Cmd(Command);
Ethan Yonker4b94cfd2014-12-11 10:00:45 -06002838 tw_set_default_metadata(Full_FileName.c_str());
Dees_Troy7c2dec82012-09-26 09:49:14 -04002839 if (TWFunc::Get_File_Size(Full_FileName) == 0) {
2840 // Actual size may not match backup size due to bad blocks on MTD devices so just check for 0 bytes
Matt Mower3c366972015-12-25 19:28:31 -06002841 gui_msg(Msg(msg::kError, "backup_size=Backup file size for '{1}' is 0 bytes.")(Full_FileName));
Dees_Troy7c2dec82012-09-26 09:49:14 -04002842 return false;
2843 }
bigbiffce8f83c2015-12-12 18:30:21 -05002844 if (part_settings->progress)
2845 part_settings->progress->UpdateSize(Backup_Size);
2846
Dees_Troy43d8b002012-09-17 16:00:01 -04002847 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002848}
2849
bigbiffce8f83c2015-12-12 18:30:21 -05002850unsigned long long TWPartition::Get_Restore_Size(PartitionSettings *part_settings) {
2851 if (!part_settings->adbbackup) {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002852 InfoManager restore_info(part_settings->Backup_Folder + "/" + Backup_Name + ".info");
bigbiffce8f83c2015-12-12 18:30:21 -05002853 if (restore_info.LoadValues() == 0) {
2854 if (restore_info.GetValue("backup_size", Restore_Size) == 0) {
2855 LOGINFO("Read info file, restore size is %llu\n", Restore_Size);
2856 return Restore_Size;
2857 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002858 }
2859 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002860
Matt Mower029a82d2017-01-08 13:12:38 -06002861 string Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
2862 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002863
2864 if (Is_Image(Restore_File_System)) {
2865 Restore_Size = TWFunc::Get_File_Size(Full_FileName);
2866 return Restore_Size;
2867 }
2868
2869 twrpTar tar;
2870 tar.setdir(Backup_Path);
2871 tar.setfn(Full_FileName);
bigbiffce8f83c2015-12-12 18:30:21 -05002872 tar.backup_name = Full_FileName;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002873#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2874 string Password;
2875 DataManager::GetValue("tw_restore_password", Password);
2876 if (!Password.empty())
2877 tar.setpassword(Password);
2878#endif
2879 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002880 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002881 tar.part_settings = part_settings;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002882 Restore_Size = tar.get_size();
2883 return Restore_Size;
2884}
2885
bigbiffce8f83c2015-12-12 18:30:21 -05002886bool TWPartition::Restore_Tar(PartitionSettings *part_settings) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002887 string Full_FileName;
Dees Troy4159aed2014-02-28 17:24:43 +00002888 bool ret = false;
bigbiffce8f83c2015-12-12 18:30:21 -05002889 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002890
Dees_Troye58d5262012-09-21 12:27:57 -04002891 if (Has_Android_Secure) {
Dees_Troye58d5262012-09-21 12:27:57 -04002892 if (!Wipe_AndSec())
2893 return false;
Gary Peck43acadf2012-11-21 21:19:01 -08002894 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002895 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
Ethan Yonker5eac2222014-06-11 12:22:55 -05002896 if (Has_Data_Media && Mount_Point == "/data" && Restore_File_System != Current_File_System) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002897 gui_msg(Msg(msg::kWarning, "datamedia_fs_restore=WARNING: This /data backup was made with {1} file system! The backup may not boot unless you change back to {1}.")(Restore_File_System));
Ethan Yonker5eac2222014-06-11 12:22:55 -05002898 if (!Wipe_Data_Without_Wiping_Media())
2899 return false;
2900 } else {
2901 if (!Wipe(Restore_File_System))
2902 return false;
2903 }
Dees_Troye58d5262012-09-21 12:27:57 -04002904 }
Matt Mower3c366972015-12-25 19:28:31 -06002905 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002906 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002907
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002908 // Remount as read/write as needed so we can restore the backup
2909 if (!ReMount_RW(true))
Dees_Troy43d8b002012-09-17 16:00:01 -04002910 return false;
2911
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002912 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker87af5632014-02-10 11:56:35 -06002913 twrpTar tar;
bigbiffce8f83c2015-12-12 18:30:21 -05002914 tar.part_settings = part_settings;
Ethan Yonker87af5632014-02-10 11:56:35 -06002915 tar.setdir(Backup_Path);
2916 tar.setfn(Full_FileName);
2917 tar.backup_name = Backup_Name;
2918#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2919 string Password;
2920 DataManager::GetValue("tw_restore_password", Password);
2921 if (!Password.empty())
2922 tar.setpassword(Password);
2923#endif
bigbiffce8f83c2015-12-12 18:30:21 -05002924 part_settings->progress->SetPartitionSize(Get_Restore_Size(part_settings));
2925 if (tar.extractTarFork() != 0)
Dees Troy4159aed2014-02-28 17:24:43 +00002926 ret = false;
2927 else
2928 ret = true;
2929#ifdef HAVE_CAPABILITIES
2930 // Restore capabilities to the run-as binary
Captain Throwback9d6feb52018-07-27 10:05:24 -04002931 if (Mount_Point == PartitionManager.Get_Android_Root_Path() && Mount(true) && TWFunc::Path_Exists("/system/bin/run-as")) {
Dees Troy4159aed2014-02-28 17:24:43 +00002932 struct vfs_cap_data cap_data;
2933 uint64_t capabilities = (1 << CAP_SETUID) | (1 << CAP_SETGID);
2934
2935 memset(&cap_data, 0, sizeof(cap_data));
2936 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
2937 cap_data.data[0].permitted = (uint32_t) (capabilities & 0xffffffff);
2938 cap_data.data[0].inheritable = 0;
2939 cap_data.data[1].permitted = (uint32_t) (capabilities >> 32);
2940 cap_data.data[1].inheritable = 0;
2941 if (setxattr("/system/bin/run-as", XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
2942 LOGINFO("Failed to reset capabilities of /system/bin/run-as binary.\n");
2943 } else {
2944 LOGINFO("Reset capabilities of /system/bin/run-as binary successful.\n");
2945 }
2946 }
2947#endif
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002948 if (Mount_Read_Only || Mount_Flags & MS_RDONLY)
2949 // Remount as read only when restoration is complete
2950 ReMount(true);
2951
Dees Troy4159aed2014-02-28 17:24:43 +00002952 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002953}
2954
bigbiffce8f83c2015-12-12 18:30:21 -05002955bool TWPartition::Restore_Image(PartitionSettings *part_settings) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06002956 string Full_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002957 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002958
Matt Mower3c366972015-12-25 19:28:31 -06002959 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002960 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
bigbiffce8f83c2015-12-12 18:30:21 -05002961
2962 if (part_settings->adbbackup)
2963 Full_FileName = TW_ADB_RESTORE;
2964 else
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002965 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Gary Peck15e623d2012-11-21 21:07:58 -08002966
Ethan Yonker96af84a2015-01-05 14:58:36 -06002967 if (Restore_File_System == "emmc") {
bigbiffce8f83c2015-12-12 18:30:21 -05002968 if (!part_settings->adbbackup)
2969 part_settings->total_restore_size = (uint64_t)(TWFunc::Get_File_Size(Full_FileName));
2970 if (!Raw_Read_Write(part_settings))
Ethan Yonker96af84a2015-01-05 14:58:36 -06002971 return false;
2972 } else if (Restore_File_System == "mtd" || Restore_File_System == "bml") {
bigbiffce8f83c2015-12-12 18:30:21 -05002973 if (!Flash_Image_FI(Full_FileName, part_settings->progress))
2974 return false;
2975 }
2976
2977 if (part_settings->adbbackup) {
2978 if (!twadbbu::Write_TWEOF())
Ethan Yonker96af84a2015-01-05 14:58:36 -06002979 return false;
Gary Peck15e623d2012-11-21 21:07:58 -08002980 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002981 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002982}
Dees_Troy5bf43922012-09-07 16:07:55 -04002983
2984bool TWPartition::Update_Size(bool Display_Error) {
me-cafebabeb52a4812022-07-28 03:45:22 +08002985 bool ret = false, Was_Already_Mounted = false, ro = false;
Dees_Troy51127312012-09-08 13:08:49 -04002986
Ethan Yonker1b190162016-12-05 15:25:19 -06002987 Find_Actual_Block_Device();
2988
bigbiffee7b7ff2020-03-23 15:08:27 -04002989 if (Actual_Block_Device.empty())
2990 return false;
2991
me-cafebabeb52a4812022-07-28 03:45:22 +08002992 ro = Mount_Read_Only;
2993 Mount_Read_Only = true;
2994
Ethan Yonker1b190162016-12-05 15:25:19 -06002995 if (!Can_Be_Mounted && !Is_Encrypted) {
2996 if (TWFunc::Path_Exists(Actual_Block_Device) && Find_Partition_Size()) {
2997 Used = Size;
2998 Backup_Size = Size;
me-cafebabeb52a4812022-07-28 03:45:22 +08002999 goto success;
Ethan Yonker1b190162016-12-05 15:25:19 -06003000 }
me-cafebabeb52a4812022-07-28 03:45:22 +08003001 goto fail;
Ethan Yonker1b190162016-12-05 15:25:19 -06003002 }
Dees_Troy5bf43922012-09-07 16:07:55 -04003003
Dees_Troy0550cfb2012-10-13 11:56:13 -04003004 Was_Already_Mounted = Is_Mounted();
bigbiffee7b7ff2020-03-23 15:08:27 -04003005
Dees_Troy38bd7602012-09-14 13:33:53 -04003006 if (Removable || Is_Encrypted) {
3007 if (!Mount(false))
me-cafebabeb52a4812022-07-28 03:45:22 +08003008 goto success;
Dees_Troy38bd7602012-09-14 13:33:53 -04003009 } else if (!Mount(Display_Error))
me-cafebabeb52a4812022-07-28 03:45:22 +08003010 goto fail;
Dees_Troy51127312012-09-08 13:08:49 -04003011
3012 ret = Get_Size_Via_statfs(Display_Error);
Dees_Troy0550cfb2012-10-13 11:56:13 -04003013 if (!ret || Size == 0) {
3014 if (!Get_Size_Via_df(Display_Error)) {
3015 if (!Was_Already_Mounted)
3016 UnMount(false);
me-cafebabeb52a4812022-07-28 03:45:22 +08003017 goto fail;
Dees_Troy0550cfb2012-10-13 11:56:13 -04003018 }
3019 }
Dees_Troy51127312012-09-08 13:08:49 -04003020
Dees_Troy5bf43922012-09-07 16:07:55 -04003021 if (Has_Data_Media) {
3022 if (Mount(Display_Error)) {
Ethan Yonker3fdcda42016-11-30 12:29:37 -06003023 Used = backup_exclusions.Get_Folder_Size(Mount_Point);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05003024 Backup_Size = Used;
3025 int bak = (int)(Used / 1048576LLU);
Dees_Troy51127312012-09-08 13:08:49 -04003026 int fre = (int)(Free / 1048576LLU);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05003027 LOGINFO("Data backup size is %iMB, free: %iMB.\n", bak, fre);
Dees_Troy0550cfb2012-10-13 11:56:13 -04003028 } else {
3029 if (!Was_Already_Mounted)
3030 UnMount(false);
me-cafebabeb52a4812022-07-28 03:45:22 +08003031 goto fail;
Dees_Troy0550cfb2012-10-13 11:56:13 -04003032 }
Dees_Troye58d5262012-09-21 12:27:57 -04003033 } else if (Has_Android_Secure) {
3034 if (Mount(Display_Error))
Ethan Yonker3fdcda42016-11-30 12:29:37 -06003035 Backup_Size = backup_exclusions.Get_Folder_Size(Backup_Path);
Dees_Troy0550cfb2012-10-13 11:56:13 -04003036 else {
3037 if (!Was_Already_Mounted)
3038 UnMount(false);
me-cafebabeb52a4812022-07-28 03:45:22 +08003039 goto fail;
Dees_Troy0550cfb2012-10-13 11:56:13 -04003040 }
Dees_Troy5bf43922012-09-07 16:07:55 -04003041 }
Dees_Troy0550cfb2012-10-13 11:56:13 -04003042 if (!Was_Already_Mounted)
3043 UnMount(false);
me-cafebabeb52a4812022-07-28 03:45:22 +08003044success:
3045 Mount_Read_Only = ro;
Dees_Troy5bf43922012-09-07 16:07:55 -04003046 return true;
me-cafebabeb52a4812022-07-28 03:45:22 +08003047fail:
3048 Mount_Read_Only = ro;
3049 return false;
Dees_Troy51127312012-09-08 13:08:49 -04003050}
Dees_Troy38bd7602012-09-14 13:33:53 -04003051
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003052bool TWPartition::Find_Wildcard_Block_Devices(const string& Device) {
3053 int mount_point_index = 0; // we will need to create separate mount points for each partition found and we use this index to name each one
3054 string Path = TWFunc::Get_Path(Device);
3055 string Dev = TWFunc::Get_Filename(Device);
3056 size_t wildcard_index = Dev.find("*");
3057 if (wildcard_index != string::npos)
3058 Dev = Dev.substr(0, wildcard_index);
3059 wildcard_index = Dev.size();
3060 DIR* d = opendir(Path.c_str());
3061 if (d == NULL) {
3062 LOGINFO("Error opening '%s': %s\n", Path.c_str(), strerror(errno));
3063 return false;
3064 }
3065 struct dirent* de;
3066 while ((de = readdir(d)) != NULL) {
3067 if (de->d_type != DT_BLK || strlen(de->d_name) <= wildcard_index || strncmp(de->d_name, Dev.c_str(), wildcard_index) != 0)
3068 continue;
3069
3070 string item = Path + "/";
3071 item.append(de->d_name);
3072 if (PartitionManager.Find_Partition_By_Block_Device(item))
3073 continue;
3074 TWPartition *part = new TWPartition;
3075 char buffer[MAX_FSTAB_LINE_LENGTH];
3076 sprintf(buffer, "%s %s-%i auto defaults defaults", item.c_str(), Mount_Point.c_str(), ++mount_point_index);
bigbiff8da46fa2020-09-08 16:42:34 -04003077 part->Process_Fstab_Line(buffer, false, NULL);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003078 char display[MAX_FSTAB_LINE_LENGTH];
3079 sprintf(display, "%s %i", Storage_Name.c_str(), mount_point_index);
3080 part->Storage_Name = display;
3081 part->Display_Name = display;
3082 part->Primary_Block_Device = item;
3083 part->Wildcard_Block_Device = false;
3084 part->Is_SubPartition = true;
3085 part->SubPartition_Of = Mount_Point;
3086 part->Is_Storage = Is_Storage;
3087 part->Can_Be_Mounted = true;
3088 part->Removable = true;
3089 part->Can_Be_Wiped = Can_Be_Wiped;
3090 part->Wipe_Available_in_GUI = Wipe_Available_in_GUI;
3091 part->Find_Actual_Block_Device();
3092 part->Update_Size(false);
3093 Has_SubPartition = true;
3094 PartitionManager.Output_Partition(part);
3095 PartitionManager.Add_Partition(part);
3096 }
3097 closedir(d);
3098 return (mount_point_index > 0);
3099}
3100
Dees_Troy38bd7602012-09-14 13:33:53 -04003101void TWPartition::Find_Actual_Block_Device(void) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003102 if (!Sysfs_Entry.empty() && Primary_Block_Device.empty() && Decrypted_Block_Device.empty()) {
3103 /* Sysfs_Entry.empty() indicates if this is a sysfs entry that begins with /device/
3104 * If we have a syfs entry then we are looking for this device from a uevent add.
3105 * The uevent add will set the primary block device based on the data we receive from
3106 * after checking for adopted storage. If the device ends up being adopted, then the
3107 * decrypted block device will be set instead of the primary block device. */
3108 Is_Present = false;
3109 return;
3110 }
3111 if (Wildcard_Block_Device && !Is_Adopted_Storage) {
3112 Is_Present = false;
3113 Actual_Block_Device = "";
3114 Can_Be_Mounted = false;
3115 if (!Find_Wildcard_Block_Devices(Primary_Block_Device)) {
3116 string Dev = Primary_Block_Device.substr(0, Primary_Block_Device.find("*"));
3117 if (TWFunc::Path_Exists(Dev)) {
3118 Is_Present = true;
3119 Can_Be_Mounted = true;
3120 Actual_Block_Device = Dev;
3121 }
3122 }
3123 return;
3124 } else if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003125 Actual_Block_Device = Decrypted_Block_Device;
Ethan Yonker1b190162016-12-05 15:25:19 -06003126 if (TWFunc::Path_Exists(Decrypted_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003127 Is_Present = true;
Ethan Yonker1b190162016-12-05 15:25:19 -06003128 return;
3129 }
3130 } else if (SlotSelect && TWFunc::Path_Exists(Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix())) {
3131 Actual_Block_Device = Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix();
3132 unlink(Primary_Block_Device.c_str());
3133 symlink(Actual_Block_Device.c_str(), Primary_Block_Device.c_str()); // we create a non-slot symlink pointing to the currently selected slot which may assist zips with installing
3134 Is_Present = true;
3135 return;
Dees_Troy43d8b002012-09-17 16:00:01 -04003136 } else if (TWFunc::Path_Exists(Primary_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003137 Is_Present = true;
3138 Actual_Block_Device = Primary_Block_Device;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003139 return;
3140 }
Ethan Yonker1b190162016-12-05 15:25:19 -06003141 if (!Alternate_Block_Device.empty() && TWFunc::Path_Exists(Alternate_Block_Device)) {
Dees_Troy3f04d032012-10-07 18:20:09 -04003142 Actual_Block_Device = Alternate_Block_Device;
Dees_Troy38bd7602012-09-14 13:33:53 -04003143 Is_Present = true;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003144 } else {
Dees_Troy38bd7602012-09-14 13:33:53 -04003145 Is_Present = false;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003146 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003147}
3148
3149void TWPartition::Recreate_Media_Folder(void) {
3150 string Command;
Ethan Yonker66a19492015-12-10 10:19:45 -06003151 string Media_Path = Mount_Point + "/media";
Dees_Troy38bd7602012-09-14 13:33:53 -04003152
Ethan Yonkerbd7492d2016-12-07 13:55:01 -06003153 if (Is_FBE) {
3154 LOGINFO("Not recreating media folder on FBE\n");
3155 return;
3156 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003157 if (!Mount(true)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003158 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Media_Path));
3159 } else if (!TWFunc::Path_Exists(Media_Path)) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003160 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker66a19492015-12-10 10:19:45 -06003161 LOGINFO("Recreating %s folder.\n", Media_Path.c_str());
3162 mkdir(Media_Path.c_str(), 0770);
xiaolu9416f4f2015-06-04 08:22:23 +08003163 string Internal_path = DataManager::GetStrValue("tw_internal_path");
3164 if (!Internal_path.empty()) {
3165 LOGINFO("Recreating %s folder.\n", Internal_path.c_str());
3166 mkdir(Internal_path.c_str(), 0770);
3167 }
3168#ifdef TW_INTERNAL_STORAGE_PATH
3169 mkdir(EXPAND(TW_INTERNAL_STORAGE_PATH), 0770);
3170#endif
Matt Mower87413642017-01-17 21:14:46 -06003171
thata3d31fb2014-12-21 22:27:40 +01003172 // Afterwards, we will try to set the
3173 // default metadata that we were hopefully able to get during
3174 // early boot.
Ethan Yonker66a19492015-12-10 10:19:45 -06003175 tw_set_default_metadata(Media_Path.c_str());
xiaolu9416f4f2015-06-04 08:22:23 +08003176 if (!Internal_path.empty())
3177 tw_set_default_metadata(Internal_path.c_str());
Matt Mower87413642017-01-17 21:14:46 -06003178
Ethan Yonker5eac2222014-06-11 12:22:55 -05003179 // Toggle mount to ensure that "internal sdcard" gets mounted
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003180 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker5eac2222014-06-11 12:22:55 -05003181 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Dees_Troy38bd7602012-09-14 13:33:53 -04003182 }
Dees_Troy43d8b002012-09-17 16:00:01 -04003183}
Dees_Troye58d5262012-09-21 12:27:57 -04003184
3185void TWPartition::Recreate_AndSec_Folder(void) {
Dees_Troye58d5262012-09-21 12:27:57 -04003186 if (!Has_Android_Secure)
3187 return;
Dees_Troy2673cec2013-04-02 20:22:16 +00003188 LOGINFO("Creating %s: %s\n", Backup_Display_Name.c_str(), Symlink_Path.c_str());
Dees_Troye58d5262012-09-21 12:27:57 -04003189 if (!Mount(true)) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003190 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Backup_Name));
Dees_Troye58d5262012-09-21 12:27:57 -04003191 } else if (!TWFunc::Path_Exists(Symlink_Path)) {
Dees_Troy2673cec2013-04-02 20:22:16 +00003192 LOGINFO("Recreating %s folder.\n", Backup_Name.c_str());
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003193 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05003194 mkdir(Symlink_Path.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003195 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04003196 }
3197}
bigbiff7cb4c332014-11-26 20:36:07 -05003198
3199uint64_t TWPartition::Get_Max_FileSize() {
3200 uint64_t maxFileSize = 0;
3201 const uint64_t constGB = (uint64_t) 1024 * 1024 * 1024;
3202 const uint64_t constTB = (uint64_t) constGB * 1024;
3203 const uint64_t constPB = (uint64_t) constTB * 1024;
bigbiff0c532032014-12-21 13:41:26 -05003204 if (Current_File_System == "ext4")
3205 maxFileSize = 16 * constTB; //16 TB
3206 else if (Current_File_System == "vfat")
3207 maxFileSize = 4 * constGB; //4 GB
Captain Throwback47bf7202020-10-06 17:39:39 -04003208 else if (Current_File_System == "ntfs" || Current_File_System == "tntfs")
bigbiff0c532032014-12-21 13:41:26 -05003209 maxFileSize = 256 * constTB; //256 TB
3210 else if (Current_File_System == "exfat")
3211 maxFileSize = 16 * constPB; //16 PB
3212 else if (Current_File_System == "ext3")
3213 maxFileSize = 2 * constTB; //2 TB
3214 else if (Current_File_System == "f2fs")
3215 maxFileSize = 3.94 * constTB; //3.94 TB
bigbiff7cb4c332014-11-26 20:36:07 -05003216 else
3217 maxFileSize = 100000000L;
3218 return maxFileSize - 1;
3219}
3220
bigbiffce8f83c2015-12-12 18:30:21 -05003221bool TWPartition::Flash_Image(PartitionSettings *part_settings) {
3222 string Restore_File_System, full_filename;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003223
Ethan Yonkere080c1f2016-09-19 13:50:25 -05003224 full_filename = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003225
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003226 LOGINFO("Image filename is: %s\n", Backup_FileName.c_str());
bigbiffce8f83c2015-12-12 18:30:21 -05003227
3228 if (Backup_Method == BM_FILES) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003229 LOGERR("Cannot flash images to file systems\n");
3230 return false;
3231 } else if (!Can_Flash_Img) {
3232 LOGERR("Cannot flash images to partitions %s\n", Display_Name.c_str());
3233 return false;
3234 } else {
3235 if (!Find_Partition_Size()) {
3236 LOGERR("Unable to find partition size for '%s'\n", Mount_Point.c_str());
3237 return false;
3238 }
bigbiffce8f83c2015-12-12 18:30:21 -05003239 unsigned long long image_size = TWFunc::Get_File_Size(full_filename);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003240 if (image_size > Size) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003241 LOGINFO("Size (%llu bytes) of image '%s' is larger than target device '%s' (%llu bytes)\n",
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003242 image_size, Backup_FileName.c_str(), Actual_Block_Device.c_str(), Size);
Ethan Yonker74db1572015-10-28 12:44:49 -05003243 gui_err("img_size_err=Size of image is larger than target device");
Ethan Yonker96af84a2015-01-05 14:58:36 -06003244 return false;
3245 }
bigbiffce8f83c2015-12-12 18:30:21 -05003246 if (Backup_Method == BM_DD) {
3247 if (!part_settings->adbbackup) {
3248 if (Is_Sparse_Image(full_filename)) {
3249 return Flash_Sparse_Image(full_filename);
3250 }
Ethan Yonker472f5062016-02-25 13:47:30 -06003251 }
bigbiffce8f83c2015-12-12 18:30:21 -05003252 return Raw_Read_Write(part_settings);
3253 } else if (Backup_Method == BM_FLASH_UTILS) {
3254 return Flash_Image_FI(full_filename, NULL);
Ethan Yonker472f5062016-02-25 13:47:30 -06003255 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003256 }
3257
3258 LOGERR("Unknown flash method for '%s'\n", Mount_Point.c_str());
3259 return false;
3260}
3261
Ethan Yonker472f5062016-02-25 13:47:30 -06003262bool TWPartition::Is_Sparse_Image(const string& Filename) {
HashBanged974bb2016-01-30 14:20:09 -05003263 uint32_t magic = 0;
3264 int fd = open(Filename.c_str(), O_RDONLY);
3265 if (fd < 0) {
3266 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3267 return false;
3268 }
bigbiffce8f83c2015-12-12 18:30:21 -05003269
HashBanged974bb2016-01-30 14:20:09 -05003270 if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) {
3271 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3272 close(fd);
3273 return false;
3274 }
3275 close(fd);
Ethan Yonker472f5062016-02-25 13:47:30 -06003276 if (magic == SPARSE_HEADER_MAGIC)
3277 return true;
3278 return false;
3279}
3280
3281bool TWPartition::Flash_Sparse_Image(const string& Filename) {
3282 string Command;
3283
3284 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
3285
3286 Command = "simg2img '" + Filename + "' '" + Actual_Block_Device + "'";
Ethan Yonker96af84a2015-01-05 14:58:36 -06003287 LOGINFO("Flash command: '%s'\n", Command.c_str());
3288 TWFunc::Exec_Cmd(Command);
3289 return true;
3290}
3291
Ethan Yonker472f5062016-02-25 13:47:30 -06003292bool TWPartition::Flash_Image_FI(const string& Filename, ProgressTracking *progress) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003293 string Command;
Ethan Yonker472f5062016-02-25 13:47:30 -06003294 unsigned long long file_size;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003295
Ethan Yonker74db1572015-10-28 12:44:49 -05003296 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
Ethan Yonker472f5062016-02-25 13:47:30 -06003297 if (progress) {
3298 file_size = (unsigned long long)(TWFunc::Get_File_Size(Filename));
3299 progress->SetPartitionSize(file_size);
3300 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003301 // Sometimes flash image doesn't like to flash due to the first 2KB matching, so we erase first to ensure that it flashes
3302 Command = "erase_image " + MTD_Name;
3303 LOGINFO("Erase command: '%s'\n", Command.c_str());
3304 TWFunc::Exec_Cmd(Command);
3305 Command = "flash_image " + MTD_Name + " '" + Filename + "'";
3306 LOGINFO("Flash command: '%s'\n", Command.c_str());
3307 TWFunc::Exec_Cmd(Command);
Ethan Yonker472f5062016-02-25 13:47:30 -06003308 if (progress)
3309 progress->UpdateSize(file_size);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003310 return true;
3311}
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003312
3313void TWPartition::Change_Mount_Read_Only(bool new_value) {
3314 Mount_Read_Only = new_value;
3315}
3316
bigbiffce8f83c2015-12-12 18:30:21 -05003317bool TWPartition::Is_Read_Only() {
3318 return Mount_Read_Only;
3319}
3320
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003321int TWPartition::Check_Lifetime_Writes() {
3322 bool original_read_only = Mount_Read_Only;
3323 int ret = 1;
3324
3325 Mount_Read_Only = true;
3326 if (Mount(false)) {
3327 Find_Actual_Block_Device();
Ethan Yonker54970bb2019-01-17 16:19:24 -06003328 string temp = Actual_Block_Device;
3329 Find_Real_Block_Device(temp, false);
3330 string block = basename(temp.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003331 string file = "/sys/fs/" + Current_File_System + "/" + block + "/lifetime_write_kbytes";
3332 string result;
3333 if (TWFunc::Path_Exists(file)) {
3334 if (TWFunc::read_file(file, result) != 0) {
3335 LOGINFO("Check_Lifetime_Writes of '%s' failed to read_file\n", file.c_str());
3336 } else {
3337 LOGINFO("Check_Lifetime_Writes result: '%s'\n", result.c_str());
3338 if (result == "0") {
3339 ret = 0;
3340 }
3341 }
3342 } else {
3343 LOGINFO("Check_Lifetime_Writes file does not exist '%s'\n", file.c_str());
3344 }
3345 UnMount(true);
3346 } else {
3347 LOGINFO("Check_Lifetime_Writes failed to mount '%s'\n", Mount_Point.c_str());
3348 }
3349 Mount_Read_Only = original_read_only;
3350 return ret;
3351}
Ethan Yonker66a19492015-12-10 10:19:45 -06003352
3353int TWPartition::Decrypt_Adopted() {
3354#ifdef TW_INCLUDE_CRYPTO
3355 int ret = 1;
3356 Is_Adopted_Storage = false;
3357 string Adopted_Key_File = "";
3358
3359 if (!Removable)
3360 return ret;
3361
3362 int fd = open(Alternate_Block_Device.c_str(), O_RDONLY);
3363 if (fd < 0) {
3364 LOGINFO("failed to open '%s'\n", Alternate_Block_Device.c_str());
3365 return ret;
3366 }
3367 char type_guid[80];
3368 char part_guid[80];
3369
nkk717aa6fc62017-03-24 18:28:03 +02003370 uint32_t p_num;
3371 size_t last_digit = Primary_Block_Device.find_last_not_of("0123456789");
3372 if ((last_digit != string::npos) && (last_digit != Primary_Block_Device.length()-1))
3373 p_num = atoi(Primary_Block_Device.substr(last_digit + 1).c_str()) + 1;
3374 else
3375 p_num = 2;
3376
3377 if (gpt_disk_get_partition_info(fd, p_num, type_guid, part_guid) == 0) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003378 LOGINFO("type: '%s'\n", type_guid);
3379 LOGINFO("part: '%s'\n", part_guid);
3380 Adopted_GUID = part_guid;
3381 LOGINFO("Adopted_GUID '%s'\n", Adopted_GUID.c_str());
3382 if (strcmp(type_guid, TWGptAndroidExpand) == 0) {
3383 LOGINFO("android_expand found\n");
3384 Adopted_Key_File = "/data/misc/vold/expand_";
3385 Adopted_Key_File += part_guid;
3386 Adopted_Key_File += ".key";
3387 if (TWFunc::Path_Exists(Adopted_Key_File)) {
3388 Is_Adopted_Storage = true;
3389 /* Until we find a use case for this, I think it is safe
3390 * to disable USB Mass Storage whenever adopted storage
3391 * is present.
3392 */
nkk717aa6fc62017-03-24 18:28:03 +02003393 if (p_num == 2) {
3394 // TODO: Properly detect mixed vs fully adopted storage. Maybe this
3395 // should be moved to partitionmanager instead, and disable after
3396 // checking all partitions. Also the presence of adopted storage does
3397 // not necessarily mean it's being used as Internal Storage
3398 LOGINFO("Detected adopted storage, disabling USB mass storage mode\n");
3399 DataManager::SetValue("tw_has_usb_storage", 0);
3400 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003401 }
3402 }
3403 }
3404
3405 if (Is_Adopted_Storage) {
nkk717aa6fc62017-03-24 18:28:03 +02003406 string Adopted_Block_Device = Alternate_Block_Device + "p" + TWFunc::to_string(p_num);
Ethan Yonker66a19492015-12-10 10:19:45 -06003407 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
nkk717aa6fc62017-03-24 18:28:03 +02003408 Adopted_Block_Device = Alternate_Block_Device + TWFunc::to_string(p_num);
Ethan Yonker66a19492015-12-10 10:19:45 -06003409 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3410 LOGINFO("Adopted block device does not exist\n");
3411 goto exit;
3412 }
3413 }
3414 LOGINFO("key file is '%s', block device '%s'\n", Adopted_Key_File.c_str(), Adopted_Block_Device.c_str());
3415 char crypto_blkdev[MAXPATHLEN];
3416 std::string thekey;
3417 int fdkey = open(Adopted_Key_File.c_str(), O_RDONLY);
3418 if (fdkey < 0) {
3419 LOGINFO("failed to open key file\n");
3420 goto exit;
3421 }
3422 char buf[512];
3423 ssize_t n;
3424 while ((n = read(fdkey, &buf[0], sizeof(buf))) > 0) {
3425 thekey.append(buf, n);
3426 }
3427 close(fdkey);
bigbiffdf53b6c2022-01-17 19:31:52 -05003428 // unsigned char* key = (unsigned char*) thekey.data();
3429 // cryptfs_revert_ext_volume(part_guid);
Ethan Yonker66a19492015-12-10 10:19:45 -06003430
bigbiffdf53b6c2022-01-17 19:31:52 -05003431 // ret = cryptfs_setup_ext_volume(part_guid, Adopted_Block_Device.c_str(), key, thekey.size(), crypto_blkdev);
Ethan Yonker66a19492015-12-10 10:19:45 -06003432 if (ret == 0) {
3433 LOGINFO("adopted storage new block device: '%s'\n", crypto_blkdev);
3434 Decrypted_Block_Device = crypto_blkdev;
3435 Is_Decrypted = true;
3436 Is_Encrypted = true;
3437 Find_Actual_Block_Device();
Kjell Braden3126a112016-06-19 16:58:15 +00003438 if (!Mount_Storage_Retry(false)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003439 LOGERR("Failed to mount decrypted adopted storage device\n");
3440 Is_Decrypted = false;
3441 Is_Encrypted = false;
bigbiffdf53b6c2022-01-17 19:31:52 -05003442 // cryptfs_revert_ext_volume(part_guid);
Ethan Yonker66a19492015-12-10 10:19:45 -06003443 ret = 1;
3444 } else {
Ethan Yonkerfcf3f242016-02-16 12:30:26 -06003445 UnMount(false);
3446 Has_Android_Secure = false;
3447 Symlink_Path = "";
3448 Symlink_Mount_Point = "";
3449 Backup_Name = Mount_Point.substr(1);
3450 Backup_Path = Mount_Point;
3451 TWPartition* sdext = PartitionManager.Find_Partition_By_Path("/sd-ext");
3452 if (sdext && sdext->Actual_Block_Device == Adopted_Block_Device) {
3453 LOGINFO("Removing /sd-ext from partition list due to adopted storage\n");
3454 PartitionManager.Remove_Partition_By_Path("/sd-ext");
3455 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003456 Setup_Data_Media();
Ethan Yonker66a19492015-12-10 10:19:45 -06003457 Wipe_Available_in_GUI = true;
3458 Wipe_During_Factory_Reset = true;
3459 Can_Be_Backed_Up = true;
3460 Can_Encrypt_Backup = true;
3461 Use_Userdata_Encryption = true;
3462 Is_Storage = true;
3463 Storage_Name = "Adopted Storage";
3464 Is_SubPartition = true;
3465 SubPartition_Of = "/data";
3466 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
3467 DataManager::SetValue("tw_has_adopted_storage", 1);
3468 }
3469 } else {
3470 LOGERR("Failed to setup adopted storage decryption\n");
3471 }
3472 }
3473exit:
Matt Mower06543e32017-01-06 15:25:26 -06003474 close(fd);
Ethan Yonker66a19492015-12-10 10:19:45 -06003475 return ret;
3476#else
3477 LOGINFO("Decrypt_Adopted: no crypto support\n");
3478 return 1;
3479#endif
3480}
3481
3482void TWPartition::Revert_Adopted() {
3483#ifdef TW_INCLUDE_CRYPTO
3484 if (!Adopted_GUID.empty()) {
3485 PartitionManager.Remove_MTP_Storage(Mount_Point);
3486 UnMount(false);
bigbiffdf53b6c2022-01-17 19:31:52 -05003487 // cryptfs_revert_ext_volume(Adopted_GUID.c_str());
Ethan Yonker66a19492015-12-10 10:19:45 -06003488 Is_Adopted_Storage = false;
3489 Is_Encrypted = false;
3490 Is_Decrypted = false;
3491 Decrypted_Block_Device = "";
3492 Find_Actual_Block_Device();
3493 Wipe_During_Factory_Reset = false;
3494 Can_Be_Backed_Up = false;
3495 Can_Encrypt_Backup = false;
3496 Use_Userdata_Encryption = false;
3497 Is_SubPartition = false;
3498 SubPartition_Of = "";
3499 Has_Data_Media = false;
3500 Storage_Path = Mount_Point;
3501 if (!Symlink_Mount_Point.empty()) {
3502 TWPartition* Dat = PartitionManager.Find_Partition_By_Path("/data");
3503 if (Dat) {
3504 Dat->UnMount(false);
3505 Dat->Symlink_Mount_Point = Symlink_Mount_Point;
3506 }
3507 Symlink_Mount_Point = "";
3508 }
3509 }
3510#else
3511 LOGINFO("Revert_Adopted: no crypto support\n");
3512#endif
3513}
bigbiff bigbiffb5ecaad2017-03-20 18:53:53 -04003514
3515void TWPartition::Set_Backup_FileName(string fname) {
3516 Backup_FileName = fname;
3517}
3518
3519string TWPartition::Get_Backup_Name() {
3520 return Backup_Name;
3521}
bigbiffee7b7ff2020-03-23 15:08:27 -04003522
3523string TWPartition::Get_Mount_Point() {
3524 return Mount_Point;
3525}
3526
3527void TWPartition::Set_Block_Device(std::string block_device) {
3528 Primary_Block_Device = Actual_Block_Device = block_device;
3529}
3530
3531bool TWPartition::Get_Super_Status() {
3532 return Is_Super;
3533}
3534
3535void TWPartition::Set_Can_Be_Backed_Up(bool val) {
3536 Can_Be_Backed_Up = val;
3537}
3538
3539void TWPartition::Set_Can_Be_Wiped(bool val) {
3540 Can_Be_Wiped = val;
3541 Wipe_Available_in_GUI = val;
bigbiffad58e1b2020-07-06 20:24:34 -04003542}
3543
3544std::string TWPartition::Get_Backup_FileName() {
3545 return Backup_FileName;
3546}
3547
3548std::string TWPartition::Get_Display_Name() {
3549 return Display_Name;
3550}
3551
3552bool TWPartition::Is_SlotSelect() {
3553 return SlotSelect;
Mohd Faraz815e2402020-09-19 19:31:52 +05303554}