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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>
36#include <libsnapshot/snapshot.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040037
Ethan Yonker007de982018-08-31 14:23:16 -050038#include "cutils/properties.h"
bigbiff7b4c7a62015-01-01 19:44:14 -050039#include "libblkid/include/blkid.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040040#include "variables.h"
Dees_Troy2673cec2013-04-02 20:22:16 +000041#include "twcommon.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040042#include "partitions.hpp"
Dees_Troy5bf43922012-09-07 16:07:55 -040043#include "data.hpp"
Dees_Troy43d8b002012-09-17 16:00:01 -040044#include "twrp-functions.hpp"
bigbiff bigbiff9c754052013-01-09 09:09:08 -050045#include "twrpTar.hpp"
Ethan Yonker3fdcda42016-11-30 12:29:37 -060046#include "exclude.hpp"
Ethan Yonker1b7a31b2014-07-03 15:09:22 -050047#include "infomanager.hpp"
Ethan Yonker4b94cfd2014-12-11 10:00:45 -060048#include "set_metadata.h"
Ethan Yonker74db1572015-10-28 12:44:49 -050049#include "gui/gui.hpp"
bigbiffce8f83c2015-12-12 18:30:21 -050050#include "adbbu/libtwadbbu.hpp"
Ethan Yonker98661c12018-10-17 08:39:28 -050051#ifdef TW_INCLUDE_CRYPTO
52 #include "crypto/fde/cryptfs.h"
bigbiffa957f072021-03-07 18:20:29 -050053 #include "Decrypt.h"
Ethan Yonker98661c12018-10-17 08:39:28 -050054#else
55 #define CRYPT_FOOTER_OFFSET 0x4000
56#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
bigbiff bigbiff9c754052013-01-09 09:09:08 -050078using namespace std;
79
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060080static 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
81
Dees_Troya95f55c2013-08-17 13:14:43 +000082extern struct selabel_handle *selinux_handle;
Ethan Yonker6277c792014-09-15 14:54:30 -050083extern bool datamedia;
Dees_Troya95f55c2013-08-17 13:14:43 +000084
Hashcode62bd9e02013-11-19 21:59:42 -080085struct flag_list {
86 const char *name;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060087 unsigned long flag;
Hashcode62bd9e02013-11-19 21:59:42 -080088};
89
Matt Mower4ab42b12016-04-21 13:52:18 -050090const struct flag_list mount_flags[] = {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060091 { "noatime", MS_NOATIME },
92 { "noexec", MS_NOEXEC },
93 { "nosuid", MS_NOSUID },
94 { "nodev", MS_NODEV },
95 { "nodiratime", MS_NODIRATIME },
96 { "ro", MS_RDONLY },
97 { "rw", 0 },
98 { "remount", MS_REMOUNT },
99 { "bind", MS_BIND },
100 { "rec", MS_REC },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000101#ifdef MS_UNBINDABLE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600102 { "unbindable", MS_UNBINDABLE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000103#endif
104#ifdef MS_PRIVATE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600105 { "private", MS_PRIVATE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000106#endif
107#ifdef MS_SLAVE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600108 { "slave", MS_SLAVE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000109#endif
110#ifdef MS_SHARED
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600111 { "shared", MS_SHARED },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000112#endif
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600113 { "sync", MS_SYNCHRONOUS },
114 { 0, 0 },
115};
116
117const char *ignored_mount_items[] = {
118 "defaults=",
119 "errors=",
Ethan Yonker93382822018-11-01 15:25:31 -0500120 "latemount",
121 "sysfs_path=",
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600122 NULL
Hashcode62bd9e02013-11-19 21:59:42 -0800123};
124
Matt Mower2416a502016-04-12 19:54:46 -0500125enum TW_FSTAB_FLAGS {
126 TWFLAG_DEFAULTS, // Retain position
127 TWFLAG_ANDSEC,
128 TWFLAG_BACKUP,
129 TWFLAG_BACKUPNAME,
130 TWFLAG_BLOCKSIZE,
131 TWFLAG_CANBEWIPED,
132 TWFLAG_CANENCRYPTBACKUP,
133 TWFLAG_DISPLAY,
134 TWFLAG_ENCRYPTABLE,
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500135 TWFLAG_FILEENCRYPTION,
Matt Mower2416a502016-04-12 19:54:46 -0500136 TWFLAG_FLASHIMG,
137 TWFLAG_FORCEENCRYPT,
138 TWFLAG_FSFLAGS,
139 TWFLAG_IGNOREBLKID,
140 TWFLAG_LENGTH,
141 TWFLAG_MOUNTTODECRYPT,
142 TWFLAG_REMOVABLE,
Matt Mower2416a502016-04-12 19:54:46 -0500143 TWFLAG_SETTINGSSTORAGE,
144 TWFLAG_STORAGE,
145 TWFLAG_STORAGENAME,
146 TWFLAG_SUBPARTITIONOF,
147 TWFLAG_SYMLINK,
148 TWFLAG_USERDATAENCRYPTBACKUP,
149 TWFLAG_USERMRF,
150 TWFLAG_WIPEDURINGFACTORYRESET,
151 TWFLAG_WIPEINGUI,
Ethan Yonker1b190162016-12-05 15:25:19 -0600152 TWFLAG_SLOTSELECT,
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600153 TWFLAG_WAIT,
154 TWFLAG_VERIFY,
155 TWFLAG_CHECK,
156 TWFLAG_ALTDEVICE,
157 TWFLAG_NOTRIM,
158 TWFLAG_VOLDMANAGED,
159 TWFLAG_FORMATTABLE,
160 TWFLAG_RESIZE,
Ethan Yonker93382822018-11-01 15:25:31 -0500161 TWFLAG_KEYDIRECTORY,
Peter Cai28ea7b02019-05-24 11:38:54 +0800162 TWFLAG_WRAPPEDKEY,
Peter Cai439d60c2019-10-17 08:49:10 +0800163 TWFLAG_ADOPTED_MOUNT_DELAY,
Peter Caid68e6412019-11-02 19:22:38 +0800164 TWFLAG_DM_USE_ORIGINAL_PATH,
bigbiff998f8392021-08-06 19:19:33 -0400165 TWFLAG_LOGICAL,
Matt Mower2416a502016-04-12 19:54:46 -0500166};
167
168/* Flags without a trailing '=' are considered dual format flags and can be
169 * written as either 'flagname' or 'flagname=', where the character following
170 * the '=' is Y,y,1 for true and false otherwise.
171 */
172const struct flag_list tw_flags[] = {
173 { "andsec", TWFLAG_ANDSEC },
174 { "backup", TWFLAG_BACKUP },
175 { "backupname=", TWFLAG_BACKUPNAME },
176 { "blocksize=", TWFLAG_BLOCKSIZE },
177 { "canbewiped", TWFLAG_CANBEWIPED },
178 { "canencryptbackup", TWFLAG_CANENCRYPTBACKUP },
179 { "defaults", TWFLAG_DEFAULTS },
180 { "display=", TWFLAG_DISPLAY },
181 { "encryptable=", TWFLAG_ENCRYPTABLE },
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500182 { "fileencryption=", TWFLAG_FILEENCRYPTION },
Matt Mower2416a502016-04-12 19:54:46 -0500183 { "flashimg", TWFLAG_FLASHIMG },
184 { "forceencrypt=", TWFLAG_FORCEENCRYPT },
185 { "fsflags=", TWFLAG_FSFLAGS },
186 { "ignoreblkid", TWFLAG_IGNOREBLKID },
187 { "length=", TWFLAG_LENGTH },
188 { "mounttodecrypt", TWFLAG_MOUNTTODECRYPT },
189 { "removable", TWFLAG_REMOVABLE },
Matt Mower2416a502016-04-12 19:54:46 -0500190 { "settingsstorage", TWFLAG_SETTINGSSTORAGE },
191 { "storage", TWFLAG_STORAGE },
192 { "storagename=", TWFLAG_STORAGENAME },
193 { "subpartitionof=", TWFLAG_SUBPARTITIONOF },
194 { "symlink=", TWFLAG_SYMLINK },
195 { "userdataencryptbackup", TWFLAG_USERDATAENCRYPTBACKUP },
196 { "usermrf", TWFLAG_USERMRF },
197 { "wipeduringfactoryreset", TWFLAG_WIPEDURINGFACTORYRESET },
198 { "wipeingui", TWFLAG_WIPEINGUI },
Ethan Yonker1b190162016-12-05 15:25:19 -0600199 { "slotselect", TWFLAG_SLOTSELECT },
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600200 { "wait", TWFLAG_WAIT },
201 { "verify", TWFLAG_VERIFY },
202 { "check", TWFLAG_CHECK },
203 { "altdevice", TWFLAG_ALTDEVICE },
204 { "notrim", TWFLAG_NOTRIM },
205 { "voldmanaged=", TWFLAG_VOLDMANAGED },
206 { "formattable", TWFLAG_FORMATTABLE },
207 { "resize", TWFLAG_RESIZE },
Ethan Yonker93382822018-11-01 15:25:31 -0500208 { "keydirectory=", TWFLAG_KEYDIRECTORY },
Peter Cai28ea7b02019-05-24 11:38:54 +0800209 { "wrappedkey", TWFLAG_WRAPPEDKEY },
Peter Cai439d60c2019-10-17 08:49:10 +0800210 { "adopted_mount_delay=", TWFLAG_ADOPTED_MOUNT_DELAY },
Peter Caid68e6412019-11-02 19:22:38 +0800211 { "dm_use_original_path", TWFLAG_DM_USE_ORIGINAL_PATH },
bigbiff998f8392021-08-06 19:19:33 -0400212 { "logical", TWFLAG_LOGICAL },
Matt Mower2416a502016-04-12 19:54:46 -0500213 { 0, 0 },
214};
215
that9e0593e2014-10-08 00:01:24 +0200216TWPartition::TWPartition() {
Dees_Troy51a0e822012-09-05 15:24:24 -0400217 Can_Be_Mounted = false;
218 Can_Be_Wiped = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500219 Can_Be_Backed_Up = false;
Vojtech Bocek1dc30982013-08-30 21:49:30 +0200220 Use_Rm_Rf = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400221 Wipe_During_Factory_Reset = false;
222 Wipe_Available_in_GUI = false;
223 Is_SubPartition = false;
Dees_Troy2691f9d2012-09-24 11:15:49 -0400224 Has_SubPartition = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400225 SubPartition_Of = "";
226 Symlink_Path = "";
227 Symlink_Mount_Point = "";
228 Mount_Point = "";
Dees_Troye58d5262012-09-21 12:27:57 -0400229 Backup_Path = "";
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600230 Wildcard_Block_Device = false;
231 Sysfs_Entry = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400232 Actual_Block_Device = "";
233 Primary_Block_Device = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400234 Alternate_Block_Device = "";
235 Removable = false;
236 Is_Present = false;
237 Length = 0;
238 Size = 0;
239 Used = 0;
240 Free = 0;
241 Backup_Size = 0;
242 Can_Be_Encrypted = false;
243 Is_Encrypted = false;
244 Is_Decrypted = false;
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600245 Is_FBE = false;
Ethan Yonker253368a2014-11-25 15:00:52 -0600246 Mount_To_Decrypt = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400247 Decrypted_Block_Device = "";
248 Display_Name = "";
Dees_Troya13d74f2013-03-24 08:54:55 -0500249 Backup_Display_Name = "";
250 Storage_Name = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400251 Backup_Name = "";
Dees_Troy63c8df72012-09-10 14:02:05 -0400252 Backup_FileName = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400253 MTD_Name = "";
bigbiffce8f83c2015-12-12 18:30:21 -0500254 Backup_Method = BM_NONE;
Dees_Troy83bd4832013-05-04 12:39:56 +0000255 Can_Encrypt_Backup = false;
256 Use_Userdata_Encryption = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400257 Has_Data_Media = false;
Dees_Troye58d5262012-09-21 12:27:57 -0400258 Has_Android_Secure = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400259 Is_Storage = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500260 Is_Settings_Storage = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400261 Storage_Path = "";
262 Current_File_System = "";
263 Fstab_File_System = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800264 Mount_Flags = 0;
265 Mount_Options = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400266 Format_Block_Size = 0;
Dees_Troy68cab492012-12-12 19:29:35 +0000267 Ignore_Blkid = false;
dianlujitao4879b372018-12-03 18:45:47 +0800268 Crypto_Key_Location = "";
Ethan Yonker726a0202014-12-16 20:01:38 -0600269 MTP_Storage_ID = 0;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600270 Can_Flash_Img = false;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500271 Mount_Read_Only = false;
Ethan Yonker66a19492015-12-10 10:19:45 -0600272 Is_Adopted_Storage = false;
273 Adopted_GUID = "";
Ethan Yonker1b190162016-12-05 15:25:19 -0600274 SlotSelect = false;
Ethan Yonker93382822018-11-01 15:25:31 -0500275 Key_Directory = "";
bigbiffee7b7ff2020-03-23 15:08:27 -0400276 Is_Super = false;
Peter Cai439d60c2019-10-17 08:49:10 +0800277 Adopted_Mount_Delay = 0;
Peter Caid68e6412019-11-02 19:22:38 +0800278 Original_Path = "";
279 Use_Original_Path = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400280}
281
282TWPartition::~TWPartition(void) {
283 // Do nothing
284}
285
bigbiff8da46fa2020-09-08 16:42:34 -0400286bool 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 -0500287 char full_line[MAX_FSTAB_LINE_LENGTH];
Matt Mower2416a502016-04-12 19:54:46 -0500288 char twflags[MAX_FSTAB_LINE_LENGTH] = "";
Dees_Troy5bf43922012-09-07 16:07:55 -0400289 char* ptr;
Matt Mower2b2dd152016-04-26 11:24:08 -0500290 int line_len = strlen(fstab_line), index = 0, item_index = 0;
Dees_Troya13d74f2013-03-24 08:54:55 -0500291 bool skip = false;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600292 int fstab_version = 1, mount_point_index = 0, fs_index = 1, block_device_index = 2;
293 TWPartition *additional_entry = NULL;
294 std::map<string, Flags_Map>::iterator it;
Dees_Troy5bf43922012-09-07 16:07:55 -0400295
Matt Mower2b2dd152016-04-26 11:24:08 -0500296 strlcpy(full_line, fstab_line, sizeof(full_line));
bigbiffee7b7ff2020-03-23 15:08:27 -0400297
Dees_Troy51127312012-09-08 13:08:49 -0400298 for (index = 0; index < line_len; index++) {
Dees_Troya13d74f2013-03-24 08:54:55 -0500299 if (full_line[index] == 34)
300 skip = !skip;
301 if (!skip && full_line[index] <= 32)
Dees_Troy5bf43922012-09-07 16:07:55 -0400302 full_line[index] = '\0';
Dees_Troy5bf43922012-09-07 16:07:55 -0400303 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600304 if (line_len < 10)
305 return false; // There can't possibly be a valid fstab line that is less than 10 chars
bigbiff998f8392021-08-06 19:19:33 -0400306 if (fstab_line[0] == '#')
307 return false; // skip comments
308
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600309 if (strncmp(fstab_line, "/dev/", strlen("/dev/")) == 0 || strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
310 fstab_version = 2;
311 block_device_index = 0;
312 mount_point_index = 1;
313 fs_index = 2;
314 }
315
bigbiff998f8392021-08-06 19:19:33 -0400316 if (fstab_line[0] != '/') {
bigbiffee7b7ff2020-03-23 15:08:27 -0400317 block_device_index = 0;
318 fstab_version = 2;
319 mount_point_index = 1;
320 fs_index = 2;
321 }
322
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600323 index = 0;
Dees_Troy5bf43922012-09-07 16:07:55 -0400324 while (index < line_len) {
325 while (index < line_len && full_line[index] == '\0')
326 index++;
327 if (index >= line_len)
328 continue;
329 ptr = full_line + index;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600330 if (item_index == mount_point_index) {
331 Mount_Point = ptr;
bigbiffee7b7ff2020-03-23 15:08:27 -0400332 if (fstab_version == 2 && Is_Super == false) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600333 additional_entry = PartitionManager.Find_Partition_By_Path(Mount_Point);
bigbiff8da46fa2020-09-08 16:42:34 -0400334 if (additional_entry) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600335 LOGINFO("Found an additional entry for '%s'\n", Mount_Point.c_str());
336 }
337 }
bigbiff8da46fa2020-09-08 16:42:34 -0400338 LOGINFO("Processing '%s'\n", Mount_Point.c_str());
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600339 Backup_Path = Mount_Point;
340 Storage_Path = Mount_Point;
341 Display_Name = ptr + 1;
342 Backup_Display_Name = Display_Name;
343 Storage_Name = Display_Name;
344 item_index++;
345 } else if (item_index == fs_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400346 // File System
347 Fstab_File_System = ptr;
348 Current_File_System = ptr;
349 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600350 } else if (item_index == block_device_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400351 // Primary Block Device
Dees_Troy38bd7602012-09-14 13:33:53 -0400352 if (Fstab_File_System == "mtd" || Fstab_File_System == "yaffs2") {
Dees_Troy094207a2012-09-26 12:00:39 -0400353 MTD_Name = ptr;
354 Find_MTD_Block_Device(MTD_Name);
Dees_Troy5fcd8f92012-10-16 12:22:05 -0400355 } else if (Fstab_File_System == "bml") {
356 if (Mount_Point == "/boot")
357 MTD_Name = "boot";
358 else if (Mount_Point == "/recovery")
359 MTD_Name = "recovery";
360 Primary_Block_Device = ptr;
361 if (*ptr != '/')
Dees_Troy2673cec2013-04-02 20:22:16 +0000362 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 -0400363 } else {
364 Primary_Block_Device = ptr;
bigbiff998f8392021-08-06 19:19:33 -0400365 if (*ptr == '/')
366 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
Dees_Troy5bf43922012-09-07 16:07:55 -0400367 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400368 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600369 } else if (item_index > 2) {
370 if (fstab_version == 2) {
371 if (item_index == 3) {
372 Process_FS_Flags(ptr);
373 if (additional_entry) {
374 additional_entry->Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
375 return false; // We save the extra fs flags in the other partition entry and by returning false, this entry will be deleted
376 }
377 } else {
378 strlcpy(twflags, ptr, sizeof(twflags));
379 }
380 item_index++;
381 } else if (*ptr == '/') { // v2 fstab does not allow alternate block devices
Dees_Troy5bf43922012-09-07 16:07:55 -0400382 // Alternate Block Device
383 Alternate_Block_Device = ptr;
384 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
385 } else if (strlen(ptr) > 7 && strncmp(ptr, "length=", 7) == 0) {
386 // Partition length
387 ptr += 7;
388 Length = atoi(ptr);
Dees_Troy51127312012-09-08 13:08:49 -0400389 } else if (strlen(ptr) > 6 && strncmp(ptr, "flags=", 6) == 0) {
390 // Custom flags, save for later so that new values aren't overwritten by defaults
391 ptr += 6;
Matt Mower2416a502016-04-12 19:54:46 -0500392 strlcpy(twflags, ptr, sizeof(twflags));
Dees_Troy38bd7602012-09-14 13:33:53 -0400393 } else if (strlen(ptr) == 4 && (strncmp(ptr, "NULL", 4) == 0 || strncmp(ptr, "null", 4) == 0 || strncmp(ptr, "null", 4) == 0)) {
394 // Do nothing
Dees_Troy5bf43922012-09-07 16:07:55 -0400395 } else {
396 // Unhandled data
Matt Mower2b2dd152016-04-26 11:24:08 -0500397 LOGINFO("Unhandled fstab information '%s' in fstab line '%s'\n", ptr, fstab_line);
Dees_Troy5bf43922012-09-07 16:07:55 -0400398 }
399 }
400 while (index < line_len && full_line[index] != '\0')
401 index++;
402 }
403
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600404 // override block devices from the v2 fstab with the ones we read from the twrp.flags file in case they are different
405 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
406 it = twrp_flags->find(Mount_Point);
407 if (it != twrp_flags->end()) {
408 if (!it->second.Primary_Block_Device.empty()) {
409 Primary_Block_Device = it->second.Primary_Block_Device;
410 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
411 }
412 if (!it->second.Alternate_Block_Device.empty()) {
413 Alternate_Block_Device = it->second.Alternate_Block_Device;
414 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
415 }
416 }
417 }
418
419 if (strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
420 Sysfs_Entry = Primary_Block_Device;
421 Primary_Block_Device = "";
422 Is_Storage = true;
423 Removable = true;
424 Wipe_Available_in_GUI = true;
425 Wildcard_Block_Device = true;
426 }
427 if (Primary_Block_Device.find("*") != string::npos)
428 Wildcard_Block_Device = true;
429
bigbiff8da46fa2020-09-08 16:42:34 -0400430 if (Mount_Point == "auto") {
431 Mount_Point = "/auto";
432 char autoi[5];
433 sprintf(autoi, "%i", auto_index);
434 Mount_Point += autoi;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600435 Backup_Path = Mount_Point;
436 Storage_Path = Mount_Point;
dianlujitaob76a73a2020-04-30 20:33:20 +0800437 Backup_Name = Mount_Point.substr(1);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600438 auto_index++;
439 Setup_File_System(Display_Error);
440 Display_Name = "Storage";
441 Backup_Display_Name = Display_Name;
442 Storage_Name = Display_Name;
443 Can_Be_Backed_Up = false;
444 Wipe_Available_in_GUI = true;
445 Is_Storage = true;
446 Removable = true;
447 Wipe_Available_in_GUI = true;
448 } else if (!Is_File_System(Fstab_File_System) && !Is_Image(Fstab_File_System)) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400449 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +0000450 LOGERR("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -0400451 else
Dees_Troy2673cec2013-04-02 20:22:16 +0000452 LOGINFO("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Matt Mower72c87ce2016-04-26 14:34:56 -0500453 return false;
Dees_Troy5bf43922012-09-07 16:07:55 -0400454 } else if (Is_File_System(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400455 Find_Actual_Block_Device();
Dees_Troy5bf43922012-09-07 16:07:55 -0400456 Setup_File_System(Display_Error);
dianlujitaob76a73a2020-04-30 20:33:20 +0800457 Backup_Name = Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
Chaosmaster3b682732020-01-25 21:09:28 +0100458 if (Mount_Point == "/" || Mount_Point == "/system" || Mount_Point == "/system_root") {
bigbiff8da46fa2020-09-08 16:42:34 -0400459 Mount_Point = PartitionManager.Get_Android_Root_Path();
460 Backup_Path = Mount_Point;
461 Storage_Path = Mount_Point;
Dees_Troy5bf43922012-09-07 16:07:55 -0400462 Display_Name = "System";
dianlujitaob76a73a2020-04-30 20:33:20 +0800463 Backup_Name = "system";
Dees_Troya13d74f2013-03-24 08:54:55 -0500464 Backup_Display_Name = Display_Name;
465 Storage_Name = Display_Name;
bigbiff8da46fa2020-09-08 16:42:34 -0400466 Wipe_Available_in_GUI = false;
467 Can_Be_Backed_Up = false;
468 Can_Be_Wiped = false;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500469 Mount_Read_Only = true;
bigbiff8da46fa2020-09-08 16:42:34 -0400470 Make_Dir(PartitionManager.Get_Android_Root_Path(), true);
Mohd Faraze3948ec2020-08-14 01:40:59 +0000471 } else if (Mount_Point == "/product") {
472 Display_Name = "Product";
473 Backup_Name = "Product";
474 Backup_Display_Name = Display_Name;
475 Storage_Name = Display_Name;
476 Can_Be_Backed_Up = Wipe_Available_in_GUI = Is_Super ? false : true;
477 Mount_Read_Only = true;
478 } else if (Mount_Point == "/odm") {
479 Display_Name = "ODM";
480 Backup_Name = "ODM";
481 Backup_Display_Name = Display_Name;
482 Storage_Name = Display_Name;
483 Can_Be_Backed_Up = Wipe_Available_in_GUI = Is_Super ? false : true;
484 Mount_Read_Only = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400485 } else if (Mount_Point == "/data") {
486 Display_Name = "Data";
Dees_Troya13d74f2013-03-24 08:54:55 -0500487 Backup_Display_Name = Display_Name;
488 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400489 Wipe_Available_in_GUI = true;
Dees_Troy51127312012-09-08 13:08:49 -0400490 Wipe_During_Factory_Reset = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500491 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000492 Can_Encrypt_Backup = true;
493 Use_Userdata_Encryption = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400494 } else if (Mount_Point == "/cache") {
495 Display_Name = "Cache";
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_Troy5bf43922012-09-07 16:07:55 -0400501 } else if (Mount_Point == "/datadata") {
Dees_Troy51127312012-09-08 13:08:49 -0400502 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400503 Display_Name = "DataData";
Dees_Troya13d74f2013-03-24 08:54:55 -0500504 Backup_Display_Name = Display_Name;
505 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400506 Is_SubPartition = true;
507 SubPartition_Of = "/data";
Dees_Troy5bf43922012-09-07 16:07:55 -0400508 DataManager::SetValue(TW_HAS_DATADATA, 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500509 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000510 Can_Encrypt_Backup = true;
511 Use_Userdata_Encryption = false; // This whole partition should be encrypted
Dees_Troy5bf43922012-09-07 16:07:55 -0400512 } else if (Mount_Point == "/sd-ext") {
Dees_Troy51127312012-09-08 13:08:49 -0400513 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400514 Display_Name = "SD-Ext";
Dees_Troya13d74f2013-03-24 08:54:55 -0500515 Backup_Display_Name = Display_Name;
516 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400517 Wipe_Available_in_GUI = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400518 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500519 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000520 Can_Encrypt_Backup = true;
521 Use_Userdata_Encryption = true;
Dees_Troy2c50e182012-09-26 20:05:28 -0400522 } else if (Mount_Point == "/boot") {
523 Display_Name = "Boot";
Dees_Troya13d74f2013-03-24 08:54:55 -0500524 Backup_Display_Name = Display_Name;
Dees_Troy2c50e182012-09-26 20:05:28 -0400525 DataManager::SetValue("tw_boot_is_mountable", 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500526 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500527 } else if (Mount_Point == "/vendor") {
528 Display_Name = "Vendor";
529 Backup_Display_Name = Display_Name;
530 Storage_Name = Display_Name;
531 Mount_Read_Only = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400532 }
533#ifdef TW_EXTERNAL_STORAGE_PATH
534 if (Mount_Point == EXPAND(TW_EXTERNAL_STORAGE_PATH)) {
535 Is_Storage = true;
536 Storage_Path = EXPAND(TW_EXTERNAL_STORAGE_PATH);
Dees_Troyc51f1f92012-09-20 15:32:13 -0400537 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500538 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400539#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000540 if (Mount_Point == "/sdcard" || Mount_Point == "/external_sd" || Mount_Point == "/external_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400541 Is_Storage = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400542 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500543 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400544#endif
Dees_Troyb05ddee2013-01-28 20:24:50 +0000545 }
Dees_Troy8170a922012-09-18 15:40:25 -0400546#ifdef TW_INTERNAL_STORAGE_PATH
547 if (Mount_Point == EXPAND(TW_INTERNAL_STORAGE_PATH)) {
548 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500549 Is_Settings_Storage = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400550 Storage_Path = EXPAND(TW_INTERNAL_STORAGE_PATH);
Dees_Troya13d74f2013-03-24 08:54:55 -0500551 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400552 }
553#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000554 if (Mount_Point == "/emmc" || Mount_Point == "/internal_sd" || Mount_Point == "/internal_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400555 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500556 Is_Settings_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500557 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400558 }
559#endif
Dees_Troy5bf43922012-09-07 16:07:55 -0400560 } else if (Is_Image(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400561 Find_Actual_Block_Device();
Ethan Yonker1b190162016-12-05 15:25:19 -0600562 Setup_Image();
Dees_Troya13d74f2013-03-24 08:54:55 -0500563 if (Mount_Point == "/boot") {
564 Display_Name = "Boot";
565 Backup_Display_Name = Display_Name;
566 Can_Be_Backed_Up = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600567 Can_Flash_Img = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500568 } else if (Mount_Point == "/recovery") {
569 Display_Name = "Recovery";
570 Backup_Display_Name = Display_Name;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600571 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500572 } else if (Mount_Point == "/system_image") {
573 Display_Name = "System Image";
574 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500575 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500576 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500577 } else if (Mount_Point == "/vendor_image") {
578 Display_Name = "Vendor Image";
579 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500580 Can_Flash_Img = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500581 Can_Be_Backed_Up = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500582 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400583 }
584
Matt Mower2416a502016-04-12 19:54:46 -0500585 // Process TWRP fstab flags
586 if (strlen(twflags) > 0) {
587 string Prev_Display_Name = Display_Name;
588 string Prev_Storage_Name = Storage_Name;
589 string Prev_Backup_Display_Name = Backup_Display_Name;
590 Display_Name = "";
591 Storage_Name = "";
592 Backup_Display_Name = "";
593
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600594 Process_TW_Flags(twflags, (fstab_version == 1), fstab_version);
595 Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
Matt Mower2416a502016-04-12 19:54:46 -0500596
597 bool has_display_name = !Display_Name.empty();
598 bool has_storage_name = !Storage_Name.empty();
599 bool has_backup_name = !Backup_Display_Name.empty();
600 if (!has_display_name) Display_Name = Prev_Display_Name;
601 if (!has_storage_name) Storage_Name = Prev_Storage_Name;
602 if (!has_backup_name) Backup_Display_Name = Prev_Backup_Display_Name;
603
604 if (has_display_name && !has_storage_name)
605 Storage_Name = Display_Name;
606 if (!has_display_name && has_storage_name)
607 Display_Name = Storage_Name;
608 if (has_display_name && !has_backup_name && Backup_Display_Name != "Android Secure")
609 Backup_Display_Name = Display_Name;
610 if (!has_display_name && has_backup_name)
611 Display_Name = Backup_Display_Name;
612 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600613
614 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
615 it = twrp_flags->find(Mount_Point);
616 if (it != twrp_flags->end()) {
617 char twrpflags[MAX_FSTAB_LINE_LENGTH] = "";
618 int skip = 0;
619 string Flags = it->second.Flags;
620 strcpy(twrpflags, Flags.c_str());
621 if (strlen(twrpflags) > strlen("flags=") && strncmp(twrpflags, "flags=", strlen("flags=")) == 0)
622 skip += strlen("flags=");
623 char* flagptr = twrpflags;
624 flagptr += skip;
625 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
626 }
627 }
nkk7198fc3992017-12-16 16:26:42 +0200628
629 if (Mount_Point == "/persist" && Can_Be_Mounted) {
630 bool mounted = Is_Mounted();
631 if (mounted || Mount(false)) {
nkk7198fc3992017-12-16 16:26:42 +0200632 TWFunc::Fixup_Time_On_Boot("/persist/time/");
633 if (!mounted)
634 UnMount(false);
635 }
636 }
637
Dees_Troy51127312012-09-08 13:08:49 -0400638 return true;
639}
640
Matt Mower72c87ce2016-04-26 14:34:56 -0500641void TWPartition::Partition_Post_Processing(bool Display_Error) {
642 if (Mount_Point == "/data")
643 Setup_Data_Partition(Display_Error);
644 else if (Mount_Point == "/cache")
645 Setup_Cache_Partition(Display_Error);
646}
647
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600648void TWPartition::ExcludeAll(const string& path) {
649 backup_exclusions.add_absolute_dir(path);
650 wipe_exclusions.add_absolute_dir(path);
651}
652
Matt Mower72c87ce2016-04-26 14:34:56 -0500653void TWPartition::Setup_Data_Partition(bool Display_Error) {
654 if (Mount_Point != "/data")
655 return;
656
657 // Ensure /data is not mounted as tmpfs for qcom hardware decrypt
658 UnMount(false);
659
660#ifdef TW_INCLUDE_CRYPTO
661 if (datamedia)
662 Setup_Data_Media();
663 Can_Be_Encrypted = true;
664 char crypto_blkdev[255];
665 property_get("ro.crypto.fs_crypto_blkdev", crypto_blkdev, "error");
666 if (strcmp(crypto_blkdev, "error") != 0) {
bigbiff7ba75002020-04-11 20:47:09 -0400667 Set_FBE_Status();
Matt Mower72c87ce2016-04-26 14:34:56 -0500668 Decrypted_Block_Device = crypto_blkdev;
669 LOGINFO("Data already decrypted, new block device: '%s'\n", crypto_blkdev);
bigbiff7ba75002020-04-11 20:47:09 -0400670 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Matt Mower72c87ce2016-04-26 14:34:56 -0500671 } else if (!Mount(false)) {
672 if (Is_Present) {
Ethan Yonker93382822018-11-01 15:25:31 -0500673 if (Key_Directory.empty()) {
Peter Caid68e6412019-11-02 19:22:38 +0800674 set_partition_data(Use_Original_Path ? Original_Path.c_str() : Actual_Block_Device.c_str(), Crypto_Key_Location.c_str(),
Noah Jacobson81d638d2019-04-28 00:10:07 -0400675 Fstab_File_System.c_str());
Ethan Yonker93382822018-11-01 15:25:31 -0500676 if (cryptfs_check_footer() == 0) {
677 Is_Encrypted = true;
678 Is_Decrypted = false;
679 Can_Be_Mounted = false;
680 Current_File_System = "emmc";
681 Setup_Image();
Ethan Yonker93382822018-11-01 15:25:31 -0500682 DataManager::SetValue(TW_CRYPTO_PWTYPE, cryptfs_get_password_type());
Noah Jacobson81d638d2019-04-28 00:10:07 -0400683 DataManager::SetValue("tw_crypto_pwtype_0", cryptfs_get_password_type());
Ethan Yonker93382822018-11-01 15:25:31 -0500684 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
685 DataManager::SetValue("tw_crypto_display", "");
686 } else {
687 gui_err("mount_data_footer=Could not mount /data and unable to find crypto footer.");
688 }
689 } else {
Matt Mower72c87ce2016-04-26 14:34:56 -0500690 Is_Encrypted = true;
691 Is_Decrypted = false;
Matt Mower72c87ce2016-04-26 14:34:56 -0500692 }
Ethan Yonker93382822018-11-01 15:25:31 -0500693 } else if (Key_Directory.empty()) {
Noah Jacobson81d638d2019-04-28 00:10:07 -0400694 LOGERR("Primary block device '%s' for mount point '%s' is not present!\n",
695 Primary_Block_Device.c_str(), Mount_Point.c_str());
Matt Mower72c87ce2016-04-26 14:34:56 -0500696 }
697 } else {
bigbiff7ba75002020-04-11 20:47:09 -0400698 Set_FBE_Status();
Captain Throwbackacc7f0f2020-12-29 15:54:33 -0500699 int is_device_fbe;
700 DataManager::GetValue(TW_IS_FBE, is_device_fbe);
Captain Throwback8a8e56c2021-10-01 15:12:24 -0400701 char crypto_state[255];
702 property_get("ro.crypto.state", crypto_state, "error");
703 if (!Decrypt_FBE_DE() && strcmp(crypto_state, "error") != 0) {
704 if (is_device_fbe == 1)
705 LOGERR("Unable to decrypt FBE device\n");
706 } else {
707 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
mauronofrio9bf73352019-11-23 22:27:34 +0100708 }
Matt Mower72c87ce2016-04-26 14:34:56 -0500709 }
710 if (datamedia && (!Is_Encrypted || (Is_Encrypted && Is_Decrypted))) {
711 Setup_Data_Media();
bigbiff25d25b92020-06-19 16:07:38 -0400712 Recreate_Media_Folder();
Matt Mower72c87ce2016-04-26 14:34:56 -0500713 }
714#else
715 if (datamedia) {
716 Setup_Data_Media();
717 Recreate_Media_Folder();
718 }
719#endif
720}
721
bigbiff7ba75002020-04-11 20:47:09 -0400722void TWPartition::Set_FBE_Status() {
723 DataManager::SetValue(TW_IS_DECRYPTED, 1);
724 Is_Encrypted = true;
725 Is_Decrypted = true;
bigbiff7ba75002020-04-11 20:47:09 -0400726 if (Key_Directory.empty()) {
727 Is_FBE = false;
728 DataManager::SetValue(TW_IS_FBE, 0);
729 } else {
Captain Throwbackb5af4f82020-12-29 16:01:10 -0500730 LOGINFO("Setup_Data_Partition::Key_Directory::%s\n", Key_Directory.c_str());
bigbiff7ba75002020-04-11 20:47:09 -0400731 Is_FBE = true;
732 DataManager::SetValue(TW_IS_FBE, 1);
733 }
734}
735
Ethan Yonker93382822018-11-01 15:25:31 -0500736bool TWPartition::Decrypt_FBE_DE() {
bigbiff7ba75002020-04-11 20:47:09 -0400737 if (TWFunc::Path_Exists("/data/unencrypted/key/version")) {
Captain Throwback87d73d62020-02-17 16:44:50 -0500738 DataManager::SetValue(TW_IS_FBE, 1);
Mohd Faraz815e2402020-09-19 19:31:52 +0530739 DataManager::SetValue(TW_CRYPTO_PWTYPE, "0"); // Set initial value so that recovery will not be confused when using unencrypted data or failed to decrypt data
Captain Throwback37c3aef2021-10-06 11:38:18 -0400740 PartitionManager.Set_Crypto_State();
741 PartitionManager.Set_Crypto_Type("file");
Ethan Yonker93382822018-11-01 15:25:31 -0500742 LOGINFO("File Based Encryption is present\n");
743#ifdef TW_INCLUDE_FBE
Noah Jacobson81d638d2019-04-28 00:10:07 -0400744 Is_FBE = true;
745 ExcludeAll(Mount_Point + "/convert_fbe");
746 ExcludeAll(Mount_Point + "/unencrypted");
747 ExcludeAll(Mount_Point + "/misc/vold/user_keys");
748 ExcludeAll(Mount_Point + "/misc/vold/volume_keys");
749 ExcludeAll(Mount_Point + "/system/gatekeeper.password.key");
750 ExcludeAll(Mount_Point + "/system/gatekeeper.pattern.key");
751 ExcludeAll(Mount_Point + "/system/locksettings.db");
752 ExcludeAll(Mount_Point + "/system/locksettings.db-wal");
753 ExcludeAll(Mount_Point + "/misc/gatekeeper");
754 ExcludeAll(Mount_Point + "/misc/keystore");
755 ExcludeAll(Mount_Point + "/drm/kek.dat");
bigbiffa957f072021-03-07 18:20:29 -0500756 ExcludeAll(Mount_Point + "/system_de/0/spblob"); // contains data needed to decrypt synthetic password
micky3872ec1df42021-10-14 14:53:06 +0200757 ExcludeAll(Mount_Point + "/system/users/0/gatekeeper.password.key");
758 ExcludeAll(Mount_Point + "/system/users/0/gatekeeper.pattern.key");
Noah Jacobson81d638d2019-04-28 00:10:07 -0400759 ExcludeAll(Mount_Point + "/cache");
760 ExcludeAll(Mount_Point + "/per_boot"); // removed each boot by init
bigbiffa15d02f2021-06-29 20:04:54 -0400761 ExcludeAll(Mount_Point + "/gsi"); // cow devices
762
Noah Jacobson81d638d2019-04-28 00:10:07 -0400763 int retry_count = 3;
764 while (!Decrypt_DE() && --retry_count)
765 usleep(2000);
766 if (retry_count > 0) {
Captain Throwback37c3aef2021-10-06 11:38:18 -0400767 PartitionManager.Set_Crypto_State();
Noah Jacobson81d638d2019-04-28 00:10:07 -0400768 Is_Encrypted = true;
769 Is_Decrypted = false;
770 DataManager::SetValue(TW_IS_ENCRYPTED, 1);
771 string filename;
772 int pwd_type = Get_Password_Type(0, filename);
773 if (pwd_type < 0) {
774 LOGERR("This TWRP does not have synthetic password decrypt support\n");
775 pwd_type = 0; // default password
Ethan Yonker93382822018-11-01 15:25:31 -0500776 }
Noah Jacobson81d638d2019-04-28 00:10:07 -0400777 PartitionManager.Parse_Users(); // after load_all_de_keys() to parse_users
778 std::vector<users_struct>::iterator iter;
779 std::vector<users_struct>* userList = PartitionManager.Get_Users_List();
780 for (iter = userList->begin(); iter != userList->end(); iter++) {
781 if (atoi((*iter).userId.c_str()) != 0) {
782 ExcludeAll(Mount_Point + "/system_de/" + (*iter).userId + "/spblob");
783 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/gatekeeper.password.key");
784 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/gatekeeper.pattern.key");
785 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/locksettings.db");
786 ExcludeAll(Mount_Point + "/system/users/" + (*iter).userId + "/locksettings.db-wal");
787 }
788 }
789 DataManager::SetValue(TW_CRYPTO_PWTYPE, pwd_type);
790 DataManager::SetValue("tw_crypto_pwtype_0", pwd_type);
791 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
792 DataManager::SetValue("tw_crypto_display", "");
793 return true;
794 }
Ethan Yonker93382822018-11-01 15:25:31 -0500795#else
796 LOGERR("FBE found but FBE support not present in TWRP\n");
797#endif
798 }
Captain Throwback87d73d62020-02-17 16:44:50 -0500799 DataManager::SetValue(TW_IS_FBE, 0);
Ethan Yonker93382822018-11-01 15:25:31 -0500800 return false;
801}
802
Matt Mower72c87ce2016-04-26 14:34:56 -0500803void TWPartition::Setup_Cache_Partition(bool Display_Error __unused) {
804 if (Mount_Point != "/cache")
805 return;
806
807 if (!Mount(true))
808 return;
809
810 if (!TWFunc::Path_Exists("/cache/recovery/.")) {
811 LOGINFO("Recreating /cache/recovery folder\n");
812 if (mkdir("/cache/recovery", S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP) != 0)
813 LOGERR("Could not create /cache/recovery\n");
814 }
815}
816
Matt Mower4ab42b12016-04-21 13:52:18 -0500817void TWPartition::Process_FS_Flags(const char *str) {
818 char *options = strdup(str);
819 char *ptr, *savep;
Hashcode62bd9e02013-11-19 21:59:42 -0800820
Matt Mower4ab42b12016-04-21 13:52:18 -0500821 Mount_Options = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800822
Matt Mower4ab42b12016-04-21 13:52:18 -0500823 // Avoid issues with potentially nested strtok by using strtok_r
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600824 for (ptr = strtok_r(options, ",", &savep); ptr; ptr = strtok_r(NULL, ",", &savep)) {
825 char *equals = strstr(ptr, "=");
826 size_t name_len;
Matt Mower4ab42b12016-04-21 13:52:18 -0500827
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600828 if (!equals)
829 name_len = strlen(ptr);
830 else
831 name_len = equals - ptr;
832
833 // There are some flags that we want to ignore in TWRP
834 bool found_match = false;
835 for (const char** ignored_mount_item = ignored_mount_items; *ignored_mount_item; ignored_mount_item++) {
836 if (strncmp(ptr, *ignored_mount_item, name_len) == 0) {
837 found_match = true;
Hashcode62bd9e02013-11-19 21:59:42 -0800838 break;
839 }
840 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600841 if (found_match)
842 continue;
Hashcode62bd9e02013-11-19 21:59:42 -0800843
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600844 // mount_flags are never postfixed by '='
845 if (!equals) {
846 const struct flag_list* mount_flag = mount_flags;
847 for (; mount_flag->name; mount_flag++) {
848 if (strcmp(ptr, mount_flag->name) == 0) {
849 if (mount_flag->flag == MS_RDONLY)
850 Mount_Read_Only = true;
851 else
852 Mount_Flags |= (unsigned)mount_flag->flag;
853 found_match = true;
854 break;
855 }
856 }
857 if (found_match)
858 continue;
Matt Mower4ab42b12016-04-21 13:52:18 -0500859 }
860
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600861 // If we aren't ignoring this flag and it's not a mount flag, then it must be a mount option
862 if (!Mount_Options.empty())
863 Mount_Options += ",";
864 Mount_Options += ptr;
Matt Mower4ab42b12016-04-21 13:52:18 -0500865 }
866 free(options);
Hashcode62bd9e02013-11-19 21:59:42 -0800867}
868
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600869void TWPartition::Save_FS_Flags(const string& local_File_System, int local_Mount_Flags, const string& local_Mount_Options) {
870 partition_fs_flags_struct flags;
871 flags.File_System = local_File_System;
872 flags.Mount_Flags = local_Mount_Flags;
873 flags.Mount_Options = local_Mount_Options;
874 fs_flags.push_back(flags);
875}
876
Matt Mower2416a502016-04-12 19:54:46 -0500877void TWPartition::Apply_TW_Flag(const unsigned flag, const char* str, const bool val) {
878 switch (flag) {
879 case TWFLAG_ANDSEC:
880 Has_Android_Secure = val;
881 break;
882 case TWFLAG_BACKUP:
883 Can_Be_Backed_Up = val;
884 break;
885 case TWFLAG_BACKUPNAME:
886 Backup_Display_Name = str;
887 break;
888 case TWFLAG_BLOCKSIZE:
889 Format_Block_Size = (unsigned long)(atol(str));
890 break;
891 case TWFLAG_CANBEWIPED:
892 Can_Be_Wiped = val;
893 break;
894 case TWFLAG_CANENCRYPTBACKUP:
895 Can_Encrypt_Backup = val;
896 break;
897 case TWFLAG_DEFAULTS:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600898 case TWFLAG_WAIT:
899 case TWFLAG_VERIFY:
900 case TWFLAG_CHECK:
901 case TWFLAG_NOTRIM:
902 case TWFLAG_VOLDMANAGED:
903 case TWFLAG_RESIZE:
Matt Mower2416a502016-04-12 19:54:46 -0500904 // Do nothing
905 break;
906 case TWFLAG_DISPLAY:
907 Display_Name = str;
908 break;
909 case TWFLAG_ENCRYPTABLE:
910 case TWFLAG_FORCEENCRYPT:
911 Crypto_Key_Location = str;
912 break;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500913 case TWFLAG_FILEENCRYPTION:
914 // This flag isn't used by TWRP but is needed in 9.0 FBE decrypt
915 // fileencryption=ice:aes-256-heh
916 {
917 std::string FBE = str;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500918 size_t colon_loc = FBE.find(":");
919 if (colon_loc == std::string::npos) {
Ethan Yonker93382822018-11-01 15:25:31 -0500920 property_set("fbe.contents", FBE.c_str());
921 property_set("fbe.filenames", "");
922 LOGINFO("FBE contents '%s', filenames ''\n", FBE.c_str());
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500923 break;
924 }
Ethan Yonker93382822018-11-01 15:25:31 -0500925 std::string FBE_contents, FBE_filenames;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500926 FBE_contents = FBE.substr(0, colon_loc);
927 FBE_filenames = FBE.substr(colon_loc + 1);
928 property_set("fbe.contents", FBE_contents.c_str());
929 property_set("fbe.filenames", FBE_filenames.c_str());
930 LOGINFO("FBE contents '%s', filenames '%s'\n", FBE_contents.c_str(), FBE_filenames.c_str());
931 }
932 break;
Peter Cai28ea7b02019-05-24 11:38:54 +0800933 case TWFLAG_WRAPPEDKEY:
bigbiff437d86f2021-09-26 16:57:14 -0400934 // no more processing needed. leaving it here in case we want to do something in the future
Peter Cai28ea7b02019-05-24 11:38:54 +0800935 break;
Matt Mower2416a502016-04-12 19:54:46 -0500936 case TWFLAG_FLASHIMG:
937 Can_Flash_Img = val;
938 break;
939 case TWFLAG_FSFLAGS:
Matt Mower4ab42b12016-04-21 13:52:18 -0500940 Process_FS_Flags(str);
Matt Mower2416a502016-04-12 19:54:46 -0500941 break;
942 case TWFLAG_IGNOREBLKID:
943 Ignore_Blkid = val;
944 break;
945 case TWFLAG_LENGTH:
946 Length = atoi(str);
947 break;
948 case TWFLAG_MOUNTTODECRYPT:
949 Mount_To_Decrypt = val;
950 break;
951 case TWFLAG_REMOVABLE:
952 Removable = val;
953 break;
Matt Mower2416a502016-04-12 19:54:46 -0500954 case TWFLAG_SETTINGSSTORAGE:
955 Is_Settings_Storage = val;
956 if (Is_Settings_Storage)
957 Is_Storage = true;
958 break;
959 case TWFLAG_STORAGE:
960 Is_Storage = val;
961 break;
962 case TWFLAG_STORAGENAME:
963 Storage_Name = str;
964 break;
965 case TWFLAG_SUBPARTITIONOF:
966 Is_SubPartition = true;
967 SubPartition_Of = str;
968 break;
969 case TWFLAG_SYMLINK:
970 Symlink_Path = str;
971 break;
972 case TWFLAG_USERDATAENCRYPTBACKUP:
973 Use_Userdata_Encryption = val;
974 if (Use_Userdata_Encryption)
975 Can_Encrypt_Backup = true;
976 break;
977 case TWFLAG_USERMRF:
978 Use_Rm_Rf = val;
979 break;
980 case TWFLAG_WIPEDURINGFACTORYRESET:
981 Wipe_During_Factory_Reset = val;
982 if (Wipe_During_Factory_Reset) {
983 Can_Be_Wiped = true;
984 Wipe_Available_in_GUI = true;
985 }
986 break;
987 case TWFLAG_WIPEINGUI:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600988 case TWFLAG_FORMATTABLE:
Matt Mower2416a502016-04-12 19:54:46 -0500989 Wipe_Available_in_GUI = val;
990 if (Wipe_Available_in_GUI)
991 Can_Be_Wiped = true;
992 break;
Ethan Yonker1b190162016-12-05 15:25:19 -0600993 case TWFLAG_SLOTSELECT:
994 SlotSelect = true;
995 break;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600996 case TWFLAG_ALTDEVICE:
997 Alternate_Block_Device = str;
998 break;
Peter Cai439d60c2019-10-17 08:49:10 +0800999 case TWFLAG_ADOPTED_MOUNT_DELAY:
1000 Adopted_Mount_Delay = atoi(str);
1001 break;
Ethan Yonker93382822018-11-01 15:25:31 -05001002 case TWFLAG_KEYDIRECTORY:
1003 Key_Directory = str;
bigbiffa957f072021-03-07 18:20:29 -05001004 LOGINFO("setting Key_Directory to: %s\n", Key_Directory.c_str());
bigbiffd58ba182020-03-23 10:02:29 -04001005 break;
Peter Caid68e6412019-11-02 19:22:38 +08001006 case TWFLAG_DM_USE_ORIGINAL_PATH:
1007 Use_Original_Path = true;
1008 break;
bigbiff998f8392021-08-06 19:19:33 -04001009 case TWFLAG_LOGICAL:
1010 Is_Super = true;
1011 break;
Matt Mower2416a502016-04-12 19:54:46 -05001012 default:
1013 // Should not get here
1014 LOGINFO("Flag identified for processing, but later unmatched: %i\n", flag);
1015 break;
1016 }
1017}
Dees_Troy51127312012-09-08 13:08:49 -04001018
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001019void TWPartition::Process_TW_Flags(char *flags, bool Display_Error, int fstab_ver) {
Matt Mower2416a502016-04-12 19:54:46 -05001020 char separator[2] = {'\n', 0};
1021 char *ptr, *savep;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001022 char source_separator = ';';
1023
1024 if (fstab_ver == 2)
1025 source_separator = ',';
Matt Mower2416a502016-04-12 19:54:46 -05001026
1027 // Semicolons within double-quotes are not forbidden, so replace
1028 // only the semicolons intended as separators with '\n' for strtok
1029 for (unsigned i = 0, skip = 0; i < strlen(flags); i++) {
1030 if (flags[i] == '\"')
Dees_Troya13d74f2013-03-24 08:54:55 -05001031 skip = !skip;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001032 if (!skip && flags[i] == source_separator)
Matt Mower2416a502016-04-12 19:54:46 -05001033 flags[i] = separator[0];
Dees_Troy51127312012-09-08 13:08:49 -04001034 }
1035
Matt Mower2416a502016-04-12 19:54:46 -05001036 // Avoid issues with potentially nested strtok by using strtok_r
1037 ptr = strtok_r(flags, separator, &savep);
1038 while (ptr) {
1039 int ptr_len = strlen(ptr);
1040 const struct flag_list* tw_flag = tw_flags;
Hashcode62bd9e02013-11-19 21:59:42 -08001041
Matt Mower2416a502016-04-12 19:54:46 -05001042 for (; tw_flag->name; tw_flag++) {
1043 int flag_len = strlen(tw_flag->name);
1044
1045 if (strncmp(ptr, tw_flag->name, flag_len) == 0) {
1046 bool flag_val = false;
1047
1048 if (ptr_len > flag_len && (tw_flag->name)[flag_len-1] != '='
1049 && ptr[flag_len] != '=') {
1050 // Handle flags with same starting string
1051 // (e.g. backup and backupname)
1052 continue;
1053 } else if (ptr_len > flag_len && ptr[flag_len] == '=') {
1054 // Handle flags with dual format: Part 1
1055 // (e.g. backup and backup=y. backup=y handled here)
1056 ptr += flag_len + 1;
1057 TWFunc::Strip_Quotes(ptr);
1058 // Skip flags with empty argument
1059 // (e.g. backup=)
1060 if (strlen(ptr) == 0) {
1061 LOGINFO("Flag missing argument or should not include '=': %s=\n", tw_flag->name);
1062 break;
1063 }
1064 flag_val = strchr("yY1", *ptr) != NULL;
1065 } else if (ptr_len == flag_len
1066 && (tw_flag->name)[flag_len-1] == '=') {
1067 // Skip flags missing argument after =
1068 // (e.g. backupname=)
1069 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
1070 break;
1071 } else if (ptr_len > flag_len
1072 && (tw_flag->name)[flag_len-1] == '=') {
1073 // Handle arguments to flags
1074 // (e.g. backupname="My Stuff")
1075 ptr += flag_len;
1076 TWFunc::Strip_Quotes(ptr);
1077 // Skip flags with empty argument
1078 // (e.g. backupname="")
1079 if (strlen(ptr) == 0) {
1080 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
1081 break;
1082 }
1083 } else if (ptr_len == flag_len) {
1084 // Handle flags with dual format: Part 2
1085 // (e.g. backup and backup=y. backup handled here)
1086 flag_val = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001087 } else {
Matt Mower2416a502016-04-12 19:54:46 -05001088 LOGINFO("Flag matched, but could not be processed: %s\n", ptr);
1089 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001090 }
Matt Mower2416a502016-04-12 19:54:46 -05001091
1092 Apply_TW_Flag(tw_flag->flag, ptr, flag_val);
1093 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001094 }
Matt Mower2416a502016-04-12 19:54:46 -05001095 }
1096 if (tw_flag->name == 0) {
Dees_Troy51127312012-09-08 13:08:49 -04001097 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001098 LOGERR("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001099 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001100 LOGINFO("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001101 }
Matt Mower2416a502016-04-12 19:54:46 -05001102 ptr = strtok_r(NULL, separator, &savep);
Dees_Troy51127312012-09-08 13:08:49 -04001103 }
Dees_Troy51a0e822012-09-05 15:24:24 -04001104}
1105
Dees_Troy5bf43922012-09-07 16:07:55 -04001106bool TWPartition::Is_File_System(string File_System) {
1107 if (File_System == "ext2" ||
Dees_Troy63c8df72012-09-10 14:02:05 -04001108 File_System == "ext3" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001109 File_System == "ext4" ||
1110 File_System == "vfat" ||
1111 File_System == "ntfs" ||
1112 File_System == "yaffs2" ||
bigbiff bigbiff3e146522012-11-14 14:32:59 -05001113 File_System == "exfat" ||
Dees_Troye5017042013-08-29 16:38:55 +00001114 File_System == "f2fs" ||
GarfieldHanc60a2082021-11-21 23:46:20 +08001115 File_System == "erofs" ||
Erfan Abdib859e912019-02-05 18:18:46 +02001116 File_System == "squashfs" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001117 File_System == "auto")
1118 return true;
1119 else
1120 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001121}
1122
Dees_Troy5bf43922012-09-07 16:07:55 -04001123bool TWPartition::Is_Image(string File_System) {
Dees_Troy5fcd8f92012-10-16 12:22:05 -04001124 if (File_System == "emmc" || File_System == "mtd" || File_System == "bml")
Dees_Troy5bf43922012-09-07 16:07:55 -04001125 return true;
1126 else
1127 return false;
1128}
1129
Dees_Troy51127312012-09-08 13:08:49 -04001130bool TWPartition::Make_Dir(string Path, bool Display_Error) {
Ethan Yonker93ac7a02016-11-07 22:05:58 -06001131 if (TWFunc::Get_D_Type_From_Stat(Path) != S_IFDIR)
1132 unlink(Path.c_str());
Dees_Troy43d8b002012-09-17 16:00:01 -04001133 if (!TWFunc::Path_Exists(Path)) {
Dees_Troy51127312012-09-08 13:08:49 -04001134 if (mkdir(Path.c_str(), 0777) == -1) {
1135 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001136 gui_msg(Msg(msg::kError, "create_folder_strerr=Can not create '{1}' folder ({2}).")(Path)(strerror(errno)));
Dees_Troy51127312012-09-08 13:08:49 -04001137 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001138 LOGINFO("Can not create '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001139 return false;
1140 } else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001141 LOGINFO("Created '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001142 return true;
1143 }
1144 }
1145 return true;
1146}
1147
Dees_Troy5bf43922012-09-07 16:07:55 -04001148void TWPartition::Setup_File_System(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001149 Can_Be_Mounted = true;
1150 Can_Be_Wiped = true;
1151
Dees_Troy5bf43922012-09-07 16:07:55 -04001152 // Make the mount point folder if it doesn't exist
Dees_Troy51127312012-09-08 13:08:49 -04001153 Make_Dir(Mount_Point, Display_Error);
bigbiffce8f83c2015-12-12 18:30:21 -05001154 Backup_Method = BM_FILES;
Dees_Troy5bf43922012-09-07 16:07:55 -04001155}
1156
Ethan Yonker1b190162016-12-05 15:25:19 -06001157void TWPartition::Setup_Image() {
Dees_Troy5bf43922012-09-07 16:07:55 -04001158 Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
1159 Backup_Name = Display_Name;
Gary Peck82599a82012-11-21 16:23:12 -08001160 if (Current_File_System == "emmc")
bigbiffce8f83c2015-12-12 18:30:21 -05001161 Backup_Method = BM_DD;
Gary Peck82599a82012-11-21 16:23:12 -08001162 else if (Current_File_System == "mtd" || Current_File_System == "bml")
bigbiffce8f83c2015-12-12 18:30:21 -05001163 Backup_Method = BM_FLASH_UTILS;
Dees_Troy5bf43922012-09-07 16:07:55 -04001164 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001165 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 -04001166}
1167
Dees_Troye58d5262012-09-21 12:27:57 -04001168void TWPartition::Setup_AndSec(void) {
Dees_Troya13d74f2013-03-24 08:54:55 -05001169 Backup_Display_Name = "Android Secure";
Dees_Troye58d5262012-09-21 12:27:57 -04001170 Backup_Name = "and-sec";
Dees_Troya13d74f2013-03-24 08:54:55 -05001171 Can_Be_Backed_Up = true;
Dees_Troye58d5262012-09-21 12:27:57 -04001172 Has_Android_Secure = true;
1173 Symlink_Path = Mount_Point + "/.android_secure";
1174 Symlink_Mount_Point = "/and-sec";
1175 Backup_Path = Symlink_Mount_Point;
1176 Make_Dir("/and-sec", true);
1177 Recreate_AndSec_Folder();
Kjell Braden3126a112016-06-19 16:58:15 +00001178 Mount_Storage_Retry(true);
Dees_Troye58d5262012-09-21 12:27:57 -04001179}
1180
that9e0593e2014-10-08 00:01:24 +02001181void TWPartition::Setup_Data_Media() {
Ethan Yonker6277c792014-09-15 14:54:30 -05001182 LOGINFO("Setting up '%s' as data/media emulated storage.\n", Mount_Point.c_str());
Ethan Yonker66a19492015-12-10 10:19:45 -06001183 if (Storage_Name.empty() || Storage_Name == "Data")
1184 Storage_Name = "Internal Storage";
Ethan Yonker6277c792014-09-15 14:54:30 -05001185 Has_Data_Media = true;
1186 Is_Storage = true;
Ethan Yonker66a19492015-12-10 10:19:45 -06001187 Storage_Path = Mount_Point + "/media";
Ethan Yonker6277c792014-09-15 14:54:30 -05001188 Symlink_Path = Storage_Path;
Ethan Yonker66a19492015-12-10 10:19:45 -06001189 if (Mount_Point == "/data") {
1190 Is_Settings_Storage = true;
1191 if (strcmp(EXPAND(TW_EXTERNAL_STORAGE_PATH), "/sdcard") == 0) {
1192 Make_Dir("/emmc", false);
1193 Symlink_Mount_Point = "/emmc";
1194 } else {
1195 Make_Dir("/sdcard", false);
1196 Symlink_Mount_Point = "/sdcard";
1197 }
1198 if (Mount(false) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1199 Storage_Path = Mount_Point + "/media/0";
1200 Symlink_Path = Storage_Path;
1201 DataManager::SetValue(TW_INTERNAL_PATH, Mount_Point + "/media/0");
1202 UnMount(true);
1203 }
1204 DataManager::SetValue("tw_has_internal", 1);
1205 DataManager::SetValue("tw_has_data_media", 1);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06001206 backup_exclusions.add_absolute_dir("/data/data/com.google.android.music/files");
bigbiff25d25b92020-06-19 16:07:38 -04001207 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 +01001208 backup_exclusions.add_absolute_dir("/data/vendor/dumpsys");
bigbiff25d25b92020-06-19 16:07:38 -04001209 backup_exclusions.add_absolute_dir("/data/cache");
Ethan Yonker6355b562017-05-01 09:42:17 -05001210 wipe_exclusions.add_absolute_dir(Mount_Point + "/misc/vold"); // adopted storage keys
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001211 ExcludeAll(Mount_Point + "/system/storage.xml");
Ethan Yonker6277c792014-09-15 14:54:30 -05001212 } else {
Ethan Yonker66a19492015-12-10 10:19:45 -06001213 if (Mount(true) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1214 Storage_Path = Mount_Point + "/media/0";
1215 Symlink_Path = Storage_Path;
1216 UnMount(true);
1217 }
Ethan Yonker6277c792014-09-15 14:54:30 -05001218 }
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001219 ExcludeAll(Mount_Point + "/media");
Ethan Yonker6277c792014-09-15 14:54:30 -05001220}
1221
Dees_Troy5bf43922012-09-07 16:07:55 -04001222void TWPartition::Find_Real_Block_Device(string& Block, bool Display_Error) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001223 char device[PATH_MAX], realDevice[PATH_MAX];
Dees_Troy5bf43922012-09-07 16:07:55 -04001224
Peter Caid68e6412019-11-02 19:22:38 +08001225 Original_Path = Block;
1226
Dees_Troy5bf43922012-09-07 16:07:55 -04001227 strcpy(device, Block.c_str());
1228 memset(realDevice, 0, sizeof(realDevice));
1229 while (readlink(device, realDevice, sizeof(realDevice)) > 0)
1230 {
1231 strcpy(device, realDevice);
1232 memset(realDevice, 0, sizeof(realDevice));
1233 }
1234
bigbiff998f8392021-08-06 19:19:33 -04001235 Block = device;
1236 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04001237}
1238
Kjell Braden3126a112016-06-19 16:58:15 +00001239bool TWPartition::Mount_Storage_Retry(bool Display_Error) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001240 // On some devices, storage doesn't want to mount right away, retry and sleep
Kjell Braden3126a112016-06-19 16:58:15 +00001241 if (!Mount(Display_Error)) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001242 int retry_count = 5;
1243 while (retry_count > 0 && !Mount(false)) {
1244 usleep(500000);
1245 retry_count--;
1246 }
Kjell Braden3126a112016-06-19 16:58:15 +00001247 return Mount(Display_Error);
Dees_Troy8e337f32012-10-13 22:07:49 -04001248 }
Kjell Braden3126a112016-06-19 16:58:15 +00001249 return true;
Dees_Troy8e337f32012-10-13 22:07:49 -04001250}
1251
Dees_Troy38bd7602012-09-14 13:33:53 -04001252bool TWPartition::Find_MTD_Block_Device(string MTD_Name) {
1253 FILE *fp = NULL;
1254 char line[255];
1255
1256 fp = fopen("/proc/mtd", "rt");
1257 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001258 LOGERR("Device does not support /proc/mtd\n");
Dees_Troy38bd7602012-09-14 13:33:53 -04001259 return false;
1260 }
1261
1262 while (fgets(line, sizeof(line), fp) != NULL)
1263 {
1264 char device[32], label[32];
1265 unsigned long size = 0;
Dees_Troy38bd7602012-09-14 13:33:53 -04001266 int deviceId;
1267
1268 sscanf(line, "%s %lx %*s %*c%s", device, &size, label);
1269
1270 // Skip header and blank lines
1271 if ((strcmp(device, "dev:") == 0) || (strlen(line) < 8))
1272 continue;
1273
1274 // Strip off the trailing " from the label
1275 label[strlen(label)-1] = '\0';
1276
1277 if (strcmp(label, MTD_Name.c_str()) == 0) {
1278 // We found our device
1279 // Strip off the trailing : from the device
1280 device[strlen(device)-1] = '\0';
1281 if (sscanf(device,"mtd%d", &deviceId) == 1) {
1282 sprintf(device, "/dev/block/mtdblock%d", deviceId);
1283 Primary_Block_Device = device;
Dees_Troy76543db2013-06-19 16:24:30 +00001284 fclose(fp);
1285 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04001286 }
1287 }
1288 }
1289 fclose(fp);
1290
1291 return false;
1292}
1293
Dees_Troy51127312012-09-08 13:08:49 -04001294bool TWPartition::Get_Size_Via_statfs(bool Display_Error) {
1295 struct statfs st;
1296 string Local_Path = Mount_Point + "/.";
1297
1298 if (!Mount(Display_Error))
1299 return false;
1300
1301 if (statfs(Local_Path.c_str(), &st) != 0) {
1302 if (!Removable) {
1303 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001304 LOGERR("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001305 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001306 LOGINFO("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001307 }
1308 return false;
1309 }
1310 Size = (st.f_blocks * st.f_bsize);
1311 Used = ((st.f_blocks - st.f_bfree) * st.f_bsize);
1312 Free = (st.f_bfree * st.f_bsize);
1313 Backup_Size = Used;
1314 return true;
1315}
1316
1317bool TWPartition::Get_Size_Via_df(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001318 FILE* fp;
1319 char command[255], line[512];
1320 int include_block = 1;
1321 unsigned int min_len;
1322
1323 if (!Mount(Display_Error))
1324 return false;
1325
Dees_Troy38bd7602012-09-14 13:33:53 -04001326 min_len = Actual_Block_Device.size() + 2;
Dees_Troy51127312012-09-08 13:08:49 -04001327 sprintf(command, "df %s > /tmp/dfoutput.txt", Mount_Point.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02001328 TWFunc::Exec_Cmd(command);
Dees_Troy51127312012-09-08 13:08:49 -04001329 fp = fopen("/tmp/dfoutput.txt", "rt");
1330 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001331 LOGINFO("Unable to open /tmp/dfoutput.txt.\n");
Dees_Troy5bf43922012-09-07 16:07:55 -04001332 return false;
Dees_Troy51127312012-09-08 13:08:49 -04001333 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001334
1335 while (fgets(line, sizeof(line), fp) != NULL)
1336 {
1337 unsigned long blocks, used, available;
1338 char device[64];
1339 char tmpString[64];
1340
1341 if (strncmp(line, "Filesystem", 10) == 0)
1342 continue;
1343 if (strlen(line) < min_len) {
1344 include_block = 0;
1345 continue;
1346 }
1347 if (include_block) {
1348 sscanf(line, "%s %lu %lu %lu", device, &blocks, &used, &available);
1349 } else {
1350 // The device block string is so long that the df information is on the next line
1351 int space_count = 0;
Dees_Troye58d5262012-09-21 12:27:57 -04001352 sprintf(tmpString, "/dev/block/%s", Actual_Block_Device.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001353 while (tmpString[space_count] == 32)
1354 space_count++;
1355 sscanf(line + space_count, "%lu %lu %lu", &blocks, &used, &available);
1356 }
1357
1358 // Adjust block size to byte size
1359 Size = blocks * 1024ULL;
1360 Used = used * 1024ULL;
1361 Free = available * 1024ULL;
1362 Backup_Size = Used;
1363 }
1364 fclose(fp);
1365 return true;
1366}
1367
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001368unsigned long long TWPartition::IOCTL_Get_Block_Size() {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001369 Find_Actual_Block_Device();
Ethan Yonker483e9f42016-01-11 22:21:18 -06001370
1371 return TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001372}
1373
Dees_Troy5bf43922012-09-07 16:07:55 -04001374bool TWPartition::Find_Partition_Size(void) {
1375 FILE* fp;
1376 char line[512];
1377 string tmpdevice;
1378
igoriok87e3d932013-01-31 21:03:53 +02001379 fp = fopen("/proc/dumchar_info", "rt");
1380 if (fp != NULL) {
1381 while (fgets(line, sizeof(line), fp) != NULL)
1382 {
1383 char label[32], device[32];
1384 unsigned long size = 0;
1385
thatd43bf2d2014-09-21 23:13:02 +02001386 sscanf(line, "%s %lx %*x %*u %s", label, &size, device);
igoriok87e3d932013-01-31 21:03:53 +02001387
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05001388 // Skip header, annotation and blank lines
igoriok87e3d932013-01-31 21:03:53 +02001389 if ((strncmp(device, "/dev/", 5) != 0) || (strlen(line) < 8))
1390 continue;
1391
1392 tmpdevice = "/dev/";
1393 tmpdevice += label;
1394 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
1395 Size = size;
1396 fclose(fp);
1397 return true;
1398 }
1399 }
1400 }
1401
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001402 unsigned long long ioctl_size = IOCTL_Get_Block_Size();
1403 if (ioctl_size) {
1404 Size = ioctl_size;
1405 return true;
1406 }
1407
Dees_Troy5bf43922012-09-07 16:07:55 -04001408 // In this case, we'll first get the partitions we care about (with labels)
1409 fp = fopen("/proc/partitions", "rt");
1410 if (fp == NULL)
1411 return false;
1412
1413 while (fgets(line, sizeof(line), fp) != NULL)
1414 {
1415 unsigned long major, minor, blocks;
1416 char device[512];
Dees_Troy5bf43922012-09-07 16:07:55 -04001417
Dees_Troy63c8df72012-09-10 14:02:05 -04001418 if (strlen(line) < 7 || line[0] == 'm') continue;
Dees_Troy5bf43922012-09-07 16:07:55 -04001419 sscanf(line + 1, "%lu %lu %lu %s", &major, &minor, &blocks, device);
1420
1421 tmpdevice = "/dev/block/";
1422 tmpdevice += device;
Dees_Troy38bd7602012-09-14 13:33:53 -04001423 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001424 // Adjust block size to byte size
1425 Size = blocks * 1024ULL;
1426 fclose(fp);
1427 return true;
1428 }
1429 }
1430 fclose(fp);
1431 return false;
1432}
1433
Dees_Troy5bf43922012-09-07 16:07:55 -04001434bool TWPartition::Is_Mounted(void) {
1435 if (!Can_Be_Mounted)
1436 return false;
1437
1438 struct stat st1, st2;
1439 string test_path;
1440
1441 // Check to see if the mount point directory exists
1442 test_path = Mount_Point + "/.";
1443 if (stat(test_path.c_str(), &st1) != 0) return false;
1444
1445 // Check to see if the directory above the mount point exists
1446 test_path = Mount_Point + "/../.";
1447 if (stat(test_path.c_str(), &st2) != 0) return false;
1448
1449 // Compare the device IDs -- if they match then we're (probably) using tmpfs instead of an actual device
1450 int ret = (st1.st_dev != st2.st_dev) ? true : false;
Dees_Troy5bf43922012-09-07 16:07:55 -04001451 return ret;
1452}
1453
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001454bool TWPartition::Is_File_System_Writable(void) {
1455 if (!Is_File_System(Current_File_System) || !Is_Mounted())
1456 return false;
1457
1458 string test_path = Mount_Point + "/.";
1459 return (access(test_path.c_str(), W_OK) == 0);
1460}
1461
Dees_Troy5bf43922012-09-07 16:07:55 -04001462bool TWPartition::Mount(bool Display_Error) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001463 int exfat_mounted = 0;
Martin Dünkelmann6d843782018-12-27 23:40:28 +01001464 unsigned int flags = Mount_Flags;
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001465
Dees_Troy5bf43922012-09-07 16:07:55 -04001466 if (Is_Mounted()) {
1467 return true;
1468 } else if (!Can_Be_Mounted) {
1469 return false;
1470 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001471
1472 Find_Actual_Block_Device();
1473
1474 // Check the current file system before mounting
1475 Check_FS_Type();
bigbiffad58e1b2020-07-06 20:24:34 -04001476 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/exfat-fuse")) {
1477 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 +00001478 LOGINFO("cmd: %s\n", cmd.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001479 string result;
bigbiffad58e1b2020-07-06 20:24:34 -04001480 if (TWFunc::Exec_Cmd(cmd, result, false) != 0) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001481 LOGINFO("exfat-fuse failed to mount with result '%s', trying vfat\n", result.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001482 Current_File_System = "vfat";
1483 } else {
1484#ifdef TW_NO_EXFAT_FUSE
1485 UnMount(false);
1486 // We'll let the kernel handle it but using exfat-fuse to detect if the file system is actually exfat
1487 // Some kernels let us mount vfat as exfat which doesn't work out too well
1488#else
1489 exfat_mounted = 1;
1490#endif
1491 }
1492 }
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001493
Captain Throwback47bf7202020-10-06 17:39:39 -04001494 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 -05001495 string cmd;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001496 string Ntfsmount_Binary = "";
1497
bigbiffad58e1b2020-07-06 20:24:34 -04001498 if (TWFunc::Path_Exists("/system/bin/ntfs-3g"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001499 Ntfsmount_Binary = "ntfs-3g";
bigbiffad58e1b2020-07-06 20:24:34 -04001500 else if (TWFunc::Path_Exists("/system/bin/mount.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001501 Ntfsmount_Binary = "mount.ntfs";
1502
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001503 if (Mount_Read_Only)
bigbiffad58e1b2020-07-06 20:24:34 -04001504 cmd = "/system/bin/" + Ntfsmount_Binary + " -o ro " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001505 else
bigbiffad58e1b2020-07-06 20:24:34 -04001506 cmd = "/system/bin/" + Ntfsmount_Binary + " " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001507 LOGINFO("cmd: '%s'\n", cmd.c_str());
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001508
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001509 if (TWFunc::Exec_Cmd(cmd) == 0) {
1510 return true;
1511 } else {
1512 LOGINFO("ntfs-3g failed to mount, trying regular mount method.\n");
1513 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001514 } else {
1515 if (Current_File_System == "ntfs" && TWFunc::Path_Exists("/sys/module/tntfs"))
1516 Current_File_System = "tntfs";
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001517 }
1518
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001519 if (Mount_Read_Only)
1520 flags |= MS_RDONLY;
1521
Dees_Troy22042032012-12-18 21:23:08 +00001522 if (Fstab_File_System == "yaffs2") {
1523 // mount an MTD partition as a YAFFS2 filesystem.
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001524 flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
1525 if (Mount_Read_Only)
1526 flags |= MS_RDONLY;
Dees_Troy76543db2013-06-19 16:24:30 +00001527 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags, NULL) < 0) {
1528 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags | MS_RDONLY, NULL) < 0) {
1529 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001530 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001531 else
1532 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1533 return false;
1534 } else {
1535 LOGINFO("Mounted '%s' (MTD) as RO\n", Mount_Point.c_str());
1536 return true;
1537 }
1538 } else {
1539 struct stat st;
1540 string test_path = Mount_Point;
1541 if (stat(test_path.c_str(), &st) < 0) {
1542 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001543 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001544 else
1545 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1546 return false;
1547 }
1548 mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
1549 if (new_mode != st.st_mode) {
1550 LOGINFO("Fixing execute permissions for %s\n", Mount_Point.c_str());
1551 if (chmod(Mount_Point.c_str(), new_mode) < 0) {
1552 if (Display_Error)
1553 LOGERR("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1554 else
1555 LOGINFO("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1556 return false;
1557 }
1558 }
Dees_Troy22042032012-12-18 21:23:08 +00001559 return true;
Dees_Troy76543db2013-06-19 16:24:30 +00001560 }
thatc7572eb2015-03-31 18:55:30 +02001561 }
1562
1563 string mount_fs = Current_File_System;
1564 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sys/module/texfat"))
1565 mount_fs = "texfat";
1566
1567 if (!exfat_mounted &&
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001568 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, Mount_Options.c_str()) != 0 &&
1569 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, NULL) != 0) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001570#ifdef TW_NO_EXFAT_FUSE
1571 if (Current_File_System == "exfat") {
Dees_Troy2673cec2013-04-02 20:22:16 +00001572 LOGINFO("Mounting exfat failed, trying vfat...\n");
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001573 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), "vfat", 0, NULL) != 0) {
Dees_Troy85f44ed2013-01-09 18:42:36 +00001574 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001575 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy85f44ed2013-01-09 18:42:36 +00001576 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001577 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001578 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 +00001579 return false;
Dees_Troy85f44ed2013-01-09 18:42:36 +00001580 }
Dees_Troyb05ddee2013-01-28 20:24:50 +00001581 } else {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001582#endif
bigbiff bigbiff26774a02014-03-29 18:22:00 -04001583 if (!Removable && Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001584 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001585 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001586 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
1587 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 +00001588 return false;
1589#ifdef TW_NO_EXFAT_FUSE
Dees_Troy85f44ed2013-01-09 18:42:36 +00001590 }
1591#endif
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001592 }
Ethan Yonker253368a2014-11-25 15:00:52 -06001593
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001594 if (Removable)
1595 Update_Size(Display_Error);
1596
bigbiffbe4f46c2021-04-24 11:48:54 -04001597 if (!Symlink_Mount_Point.empty()) {
1598 if (!Bind_Mount(false))
1599 return false;
1600 }
1601 return true;
1602}
1603
1604bool TWPartition::Bind_Mount(bool Display_Error) {
1605 if (TWFunc::Path_Exists(Symlink_Path)) {
1606 if (mount(Symlink_Path.c_str(), Symlink_Mount_Point.c_str(), "", MS_BIND, NULL) < 0) {
1607 return false;
1608 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001609 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001610 return true;
1611}
1612
1613bool TWPartition::UnMount(bool Display_Error) {
1614 if (Is_Mounted()) {
1615 int never_unmount_system;
1616
1617 DataManager::GetValue(TW_DONT_UNMOUNT_SYSTEM, never_unmount_system);
Captain Throwback9d6feb52018-07-27 10:05:24 -04001618 if (never_unmount_system == 1 && Mount_Point == PartitionManager.Get_Android_Root_Path())
Dees_Troy5bf43922012-09-07 16:07:55 -04001619 return true; // Never unmount system if you're not supposed to unmount it
1620
Matt Mowera8e6d832017-02-14 20:20:59 -06001621 if (Is_Storage && MTP_Storage_ID > 0)
Ethan Yonker726a0202014-12-16 20:01:38 -06001622 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001623
Dees_Troy38bd7602012-09-14 13:33:53 -04001624 if (!Symlink_Mount_Point.empty())
1625 umount(Symlink_Mount_Point.c_str());
1626
Dees_Troyb05ddee2013-01-28 20:24:50 +00001627 umount(Mount_Point.c_str());
1628 if (Is_Mounted()) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001629 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001630 gui_msg(Msg(msg::kError, "fail_unmount=Failed to unmount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy5bf43922012-09-07 16:07:55 -04001631 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001632 LOGINFO("Unable to unmount '%s'\n", Mount_Point.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001633 return false;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001634 } else {
Dees_Troy5bf43922012-09-07 16:07:55 -04001635 return true;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001636 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001637 } else {
1638 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04001639 }
1640}
1641
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001642bool TWPartition::ReMount(bool Display_Error) {
1643 if (UnMount(Display_Error))
1644 return Mount(Display_Error);
1645 return false;
1646}
1647
1648bool TWPartition::ReMount_RW(bool Display_Error) {
1649 // No need to remount if already mounted rw
1650 if (Is_File_System_Writable())
1651 return true;
1652
1653 bool ro = Mount_Read_Only;
1654 int flags = Mount_Flags;
1655
1656 Mount_Read_Only = false;
1657 Mount_Flags &= ~MS_RDONLY;
1658
1659 bool ret = ReMount(Display_Error);
1660
1661 Mount_Read_Only = ro;
1662 Mount_Flags = flags;
1663
1664 return ret;
1665}
1666
Gary Peck43acadf2012-11-21 21:19:01 -08001667bool TWPartition::Wipe(string New_File_System) {
Ethan Yonker726a0202014-12-16 20:01:38 -06001668 bool wiped = false, update_crypt = false, recreate_media = true;
Dees_Troy16c2b312013-01-15 16:51:18 +00001669 int check;
Dees_Troy16c2b312013-01-15 16:51:18 +00001670
Dees_Troy38bd7602012-09-14 13:33:53 -04001671 if (!Can_Be_Wiped) {
Matt Mower3c366972015-12-25 19:28:31 -06001672 gui_msg(Msg(msg::kError, "cannot_wipe=Partition {1} cannot be wiped.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04001673 return false;
1674 }
1675
Dees_Troyc51f1f92012-09-20 15:32:13 -04001676 if (Mount_Point == "/cache")
Dees_Troy2673cec2013-04-02 20:22:16 +00001677 Log_Offset = 0;
Dees_Troyc51f1f92012-09-20 15:32:13 -04001678
bigbiff4a60bee2021-01-23 14:08:03 -05001679 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1680 if (tw_get_default_metadata(PartitionManager.Get_Android_Root_Path().c_str()) != 0) {
1681 gui_msg(Msg(msg::kWarning, "restore_system_context=Unable to get default context for {1} -- Android may not boot.")(PartitionManager.Get_Android_Root_Path()));
1682 }
1683 }
1684
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001685 if (Has_Data_Media && Current_File_System == New_File_System) {
Dees_Troy16c2b312013-01-15 16:51:18 +00001686 wiped = Wipe_Data_Without_Wiping_Media();
bigbiff25d25b92020-06-19 16:07:38 -04001687 if (Mount_Point == "/data" && TWFunc::get_log_dir() == DATA_LOGS_DIR) {
1688 bool created = PartitionManager.Recreate_Logs_Dir();
1689 if (!created)
1690 LOGERR("Unable to create log directory for TWRP\n");
bigbiff7ba75002020-04-11 20:47:09 -04001691 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001692 recreate_media = false;
Dees_Troy16c2b312013-01-15 16:51:18 +00001693 } else {
Dees_Troy16c2b312013-01-15 16:51:18 +00001694 DataManager::GetValue(TW_RM_RF_VAR, check);
Hashcodedabfd492013-08-29 22:45:30 -07001695 if (check || Use_Rm_Rf)
Dees_Troy16c2b312013-01-15 16:51:18 +00001696 wiped = Wipe_RMRF();
1697 else if (New_File_System == "ext4")
1698 wiped = Wipe_EXT4();
1699 else if (New_File_System == "ext2" || New_File_System == "ext3")
dianlujitao4879b372018-12-03 18:45:47 +08001700 wiped = Wipe_EXTFS(New_File_System);
Dees_Troy16c2b312013-01-15 16:51:18 +00001701 else if (New_File_System == "exfat")
1702 wiped = Wipe_EXFAT();
Captain Throwback47bf7202020-10-06 17:39:39 -04001703 else if (New_File_System == "ntfs" || Current_File_System == "tntfs")
1704 wiped = Wipe_NTFS();
Dees_Troy16c2b312013-01-15 16:51:18 +00001705 else if (New_File_System == "yaffs2")
1706 wiped = Wipe_MTD();
Dees_Troye5017042013-08-29 16:38:55 +00001707 else if (New_File_System == "f2fs")
1708 wiped = Wipe_F2FS();
Captain Throwback47bf7202020-10-06 17:39:39 -04001709 else if (New_File_System == "vfat")
1710 wiped = Wipe_FAT();
Dees_Troy16c2b312013-01-15 16:51:18 +00001711 else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001712 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 +00001713 return false;
1714 }
1715 update_crypt = wiped;
bigbiff7ba75002020-04-11 20:47:09 -04001716 update_crypt = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08001717 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001718
Gary Pecke8bc5d72012-12-21 06:45:25 -08001719 if (wiped) {
Mohd Faraze1d72622020-06-15 00:28:32 +05301720 if (Mount_Point == "/cache" && TWFunc::get_log_dir() != DATA_LOGS_DIR)
1721 DataManager::Output_Version();
1722
bigbiff4a60bee2021-01-23 14:08:03 -05001723 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1724 tw_set_default_metadata(PartitionManager.Get_Android_Root_Path().c_str());
1725 }
Dees_Troy16c2b312013-01-15 16:51:18 +00001726 if (update_crypt) {
1727 Setup_File_System(false);
1728 if (Is_Encrypted && !Is_Decrypted) {
1729 // just wiped an encrypted partition back to its unencrypted state
1730 Is_Encrypted = false;
1731 Is_Decrypted = false;
1732 Decrypted_Block_Device = "";
1733 if (Mount_Point == "/data") {
1734 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
1735 DataManager::SetValue(TW_IS_DECRYPTED, 0);
1736 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08001737 }
1738 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001739
Captain Throwback63573b52021-10-02 20:47:33 -04001740 if (Is_Storage && Mount(false) && !Is_FBE)
bigbiffbe4f46c2021-04-24 11:48:54 -04001741 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Gary Pecke8bc5d72012-12-21 06:45:25 -08001742 }
Matt Mower209c9632016-01-20 12:08:35 -06001743
Gary Pecke8bc5d72012-12-21 06:45:25 -08001744 return wiped;
Dees_Troy51a0e822012-09-05 15:24:24 -04001745}
1746
Gary Peck43acadf2012-11-21 21:19:01 -08001747bool TWPartition::Wipe() {
Gary Peck82599a82012-11-21 16:23:12 -08001748 if (Is_File_System(Current_File_System))
1749 return Wipe(Current_File_System);
1750 else
1751 return Wipe(Fstab_File_System);
Gary Peck43acadf2012-11-21 21:19:01 -08001752}
1753
Dees_Troye58d5262012-09-21 12:27:57 -04001754bool TWPartition::Wipe_AndSec(void) {
1755 if (!Has_Android_Secure)
1756 return false;
1757
Dees_Troye58d5262012-09-21 12:27:57 -04001758 if (!Mount(true))
1759 return false;
1760
Ethan Yonker74db1572015-10-28 12:44:49 -05001761 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05001762 TWFunc::removeDir(Mount_Point + "/.android_secure/", true);
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02001763 return true;
Dees_Troye58d5262012-09-21 12:27:57 -04001764}
1765
bigbiffaed1bdf2021-08-03 18:21:39 -04001766bool TWPartition::Wipe_Data_Cache(void) {
1767 if (!Mount(true))
1768 return false;
1769 gui_msg(Msg("wiping=Wiping {1}")(Mount_Point + "/cache/"));
1770 TWFunc::removeDir(Mount_Point + "/cache/", true);
1771 return true;
1772}
1773
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001774bool TWPartition::Can_Repair() {
Ethan Yonkera2719152015-05-28 09:44:41 -05001775 if (Mount_Read_Only)
1776 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001777 if (Current_File_System == "vfat" && TWFunc::Path_Exists("/system/bin/fsck.fat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001778 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001779 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 -05001780 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001781 else if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/fsck.exfat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001782 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001783 else if (Current_File_System == "f2fs" && TWFunc::Path_Exists("/system/bin/fsck.f2fs"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001784 return true;
Captain Throwback47bf7202020-10-06 17:39:39 -04001785 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 -05001786 return true;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001787 return false;
1788}
1789
1790bool TWPartition::Repair() {
1791 string command;
1792
1793 if (Current_File_System == "vfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001794 if (!TWFunc::Path_Exists("/system/bin/fsck.fat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001795 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001796 return false;
1797 }
1798 if (!UnMount(true))
1799 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001800 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001801 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001802 command = "/system/bin/fsck.fat -y " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001803 LOGINFO("Repair command: %s\n", command.c_str());
1804 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001805 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001806 return true;
1807 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001808 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001809 return false;
1810 }
1811 }
1812 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
bigbiffad58e1b2020-07-06 20:24:34 -04001813 if (!TWFunc::Path_Exists("/system/bin/e2fsck")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001814 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001815 return false;
1816 }
1817 if (!UnMount(true))
1818 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001819 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001820 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001821 command = "/system/bin/e2fsck -fp " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001822 LOGINFO("Repair command: %s\n", command.c_str());
1823 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001824 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001825 return true;
1826 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001827 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001828 return false;
1829 }
1830 }
1831 if (Current_File_System == "exfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001832 if (!TWFunc::Path_Exists("/system/bin/fsck.exfat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001833 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001834 return false;
1835 }
1836 if (!UnMount(true))
1837 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001838 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001839 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001840 command = "/system/bin/fsck.exfat " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001841 LOGINFO("Repair command: %s\n", command.c_str());
1842 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001843 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001844 return true;
1845 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001846 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001847 return false;
1848 }
1849 }
1850 if (Current_File_System == "f2fs") {
bigbiffad58e1b2020-07-06 20:24:34 -04001851 if (!TWFunc::Path_Exists("/system/bin/fsck.f2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001852 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001853 return false;
1854 }
1855 if (!UnMount(true))
1856 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001857 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001858 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001859 command = "/system/bin/fsck.f2fs " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001860 LOGINFO("Repair command: %s\n", command.c_str());
1861 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001862 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001863 return true;
1864 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001865 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001866 return false;
1867 }
1868 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001869 if (Current_File_System == "ntfs" || Current_File_System == "tntfs") {
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001870 string Ntfsfix_Binary;
bigbiffad58e1b2020-07-06 20:24:34 -04001871 if (TWFunc::Path_Exists("/system/bin/ntfsfix"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001872 Ntfsfix_Binary = "ntfsfix";
bigbiffad58e1b2020-07-06 20:24:34 -04001873 else if (TWFunc::Path_Exists("/system/bin/fsck.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001874 Ntfsfix_Binary = "fsck.ntfs";
1875 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001876 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("ntfsfix"));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001877 return false;
1878 }
1879 if (!UnMount(true))
1880 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001881 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)(Ntfsfix_Binary));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001882 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001883 command = "/system/bin/" + Ntfsfix_Binary + " " + Actual_Block_Device;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001884 LOGINFO("Repair command: %s\n", command.c_str());
1885 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001886 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001887 return true;
1888 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001889 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001890 return false;
1891 }
1892 }
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001893 return false;
1894}
1895
Ethan Yonkera2719152015-05-28 09:44:41 -05001896bool TWPartition::Can_Resize() {
1897 if (Mount_Read_Only)
1898 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001899 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 -05001900 return true;
1901 return false;
1902}
1903
1904bool TWPartition::Resize() {
1905 string command;
1906
1907 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
1908 if (!Can_Repair()) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001909 LOGINFO("Cannot resize %s because %s cannot be repaired before resizing.\n", Display_Name.c_str(), Display_Name.c_str());
1910 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001911 return false;
1912 }
bigbiffad58e1b2020-07-06 20:24:34 -04001913 if (!TWFunc::Path_Exists("/system/bin/resize2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001914 LOGINFO("resize2fs does not exist! Cannot resize!\n");
1915 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001916 return false;
1917 }
1918 // Repair will unmount so no need to do it twice
Ethan Yonker74db1572015-10-28 12:44:49 -05001919 gui_msg(Msg("repair_resize=Repairing {1} before resizing.")( Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001920 if (!Repair())
1921 return false;
Ethan Yonker74db1572015-10-28 12:44:49 -05001922 gui_msg(Msg("resizing=Resizing {1} using {2}...")(Display_Name)("resize2fs"));
Ethan Yonkera2719152015-05-28 09:44:41 -05001923 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001924 command = "/system/bin/resize2fs " + Actual_Block_Device;
Ethan Yonkera2719152015-05-28 09:44:41 -05001925 if (Length != 0) {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001926 unsigned long long Actual_Size = IOCTL_Get_Block_Size();
1927 if (Actual_Size == 0)
1928 return false;
Ethan Yonkera2719152015-05-28 09:44:41 -05001929
Ethan Yonkera2719152015-05-28 09:44:41 -05001930 unsigned long long Block_Count;
1931 if (Length < 0) {
1932 // Reduce overall size by this length
1933 Block_Count = (Actual_Size / 1024LLU) - ((unsigned long long)(Length * -1) / 1024LLU);
1934 } else {
1935 // This is the size, not a size reduction
1936 Block_Count = ((unsigned long long)(Length) / 1024LLU);
1937 }
1938 char temp[256];
1939 sprintf(temp, "%llu", Block_Count);
1940 command += " ";
1941 command += temp;
1942 command += "K";
1943 }
1944 LOGINFO("Resize command: %s\n", command.c_str());
1945 if (TWFunc::Exec_Cmd(command) == 0) {
1946 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001947 gui_msg("done=Done.");
Ethan Yonkera2719152015-05-28 09:44:41 -05001948 return true;
1949 } else {
1950 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001951 gui_msg(Msg(msg::kError, "unable_resize=Unable to resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001952 return false;
1953 }
1954 }
1955 return false;
1956}
1957
bigbiffce8f83c2015-12-12 18:30:21 -05001958bool TWPartition::Backup(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
1959 if (Backup_Method == BM_FILES)
1960 return Backup_Tar(part_settings, tar_fork_pid);
1961 else if (Backup_Method == BM_DD)
1962 return Backup_Image(part_settings);
1963 else if (Backup_Method == BM_FLASH_UTILS)
1964 return Backup_Dump_Image(part_settings);
Dees_Troy2673cec2013-04-02 20:22:16 +00001965 LOGERR("Unknown backup method for '%s'\n", Mount_Point.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04001966 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001967}
1968
bigbiffce8f83c2015-12-12 18:30:21 -05001969bool TWPartition::Restore(PartitionSettings *part_settings) {
Matt Mower3c366972015-12-25 19:28:31 -06001970 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonkere080c1f2016-09-19 13:50:25 -05001971 LOGINFO("Restore filename is: %s/%s\n", part_settings->Backup_Folder.c_str(), Backup_FileName.c_str());
Gary Peck43acadf2012-11-21 21:19:01 -08001972
bigbiffce8f83c2015-12-12 18:30:21 -05001973 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001974
1975 if (Is_File_System(Restore_File_System))
bigbiffce8f83c2015-12-12 18:30:21 -05001976 return Restore_Tar(part_settings);
1977 else if (Is_Image(Restore_File_System))
1978 return Restore_Image(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001979
1980 LOGERR("Unknown restore method for '%s'\n", Mount_Point.c_str());
1981 return false;
1982}
1983
bigbiffce8f83c2015-12-12 18:30:21 -05001984string TWPartition::Get_Restore_File_System(PartitionSettings *part_settings) {
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001985 size_t first_period, second_period;
1986 string Restore_File_System;
1987
Gary Peck43acadf2012-11-21 21:19:01 -08001988 // Parse backup filename to extract the file system before wiping
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05001989 first_period = Backup_FileName.find(".");
Gary Peck43acadf2012-11-21 21:19:01 -08001990 if (first_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001991 LOGERR("Unable to find file system (first period).\n");
thatd43bf2d2014-09-21 23:13:02 +02001992 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08001993 }
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05001994 Restore_File_System = Backup_FileName.substr(first_period + 1, Backup_FileName.size() - first_period - 1);
Gary Peck43acadf2012-11-21 21:19:01 -08001995 second_period = Restore_File_System.find(".");
1996 if (second_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001997 LOGERR("Unable to find file system (second period).\n");
thatd43bf2d2014-09-21 23:13:02 +02001998 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08001999 }
2000 Restore_File_System.resize(second_period);
Matt Mowera0cd91d2016-12-30 18:21:42 -06002001 LOGINFO("Restore file system is: '%s'.\n", Restore_File_System.c_str());
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002002 return Restore_File_System;
Dees_Troy51a0e822012-09-05 15:24:24 -04002003}
2004
2005string TWPartition::Backup_Method_By_Name() {
bigbiffce8f83c2015-12-12 18:30:21 -05002006 if (Backup_Method == BM_NONE)
Dees_Troy38bd7602012-09-14 13:33:53 -04002007 return "none";
bigbiffce8f83c2015-12-12 18:30:21 -05002008 else if (Backup_Method == BM_FILES)
Dees_Troy38bd7602012-09-14 13:33:53 -04002009 return "files";
bigbiffce8f83c2015-12-12 18:30:21 -05002010 else if (Backup_Method == BM_DD)
Dees_Troy38bd7602012-09-14 13:33:53 -04002011 return "dd";
bigbiffce8f83c2015-12-12 18:30:21 -05002012 else if (Backup_Method == BM_FLASH_UTILS)
Dees_Troy38bd7602012-09-14 13:33:53 -04002013 return "flash_utils";
2014 else
2015 return "undefined";
2016 return "ERROR!";
Dees_Troy51a0e822012-09-05 15:24:24 -04002017}
2018
2019bool TWPartition::Decrypt(string Password) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002020 LOGINFO("STUB TWPartition::Decrypt, password: '%s'\n", Password.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04002021 // Is this needed?
Dees_Troy51a0e822012-09-05 15:24:24 -04002022 return 1;
2023}
2024
2025bool TWPartition::Wipe_Encryption() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002026 bool Save_Data_Media = Has_Data_Media;
Ethan Yonker93382822018-11-01 15:25:31 -05002027 bool ret = false;
2028 BasePartition* base_partition = make_partition();
2029
2030 if (!base_partition->PreWipeEncryption())
2031 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002032
dianlujitao4879b372018-12-03 18:45:47 +08002033 Find_Actual_Block_Device();
2034 if (!Is_Present) {
2035 LOGINFO("Block device not present, cannot format %s.\n", Display_Name.c_str());
2036 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2037 return false;
2038 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002039
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002040#ifdef TW_INCLUDE_CRYPTO
bigbiff7ba75002020-04-11 20:47:09 -04002041 if (!UnMount(true))
2042 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002043 if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Matt Mower2b18a532015-02-20 16:58:05 -06002044 if (delete_crypto_blk_dev((char*)("userdata")) != 0) {
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002045 LOGERR("Error deleting crypto block device, continuing anyway.\n");
2046 }
2047 }
2048#endif
dianlujitao4879b372018-12-03 18:45:47 +08002049 Has_Data_Media = false;
Ethan Yonker93382822018-11-01 15:25:31 -05002050 Decrypted_Block_Device = "";
Dees_Troy74fb2e92013-04-15 14:35:47 +00002051 Is_Decrypted = false;
2052 Is_Encrypted = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08002053 if (Wipe(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002054 Has_Data_Media = Save_Data_Media;
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002055 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Ethan Yonker83e82572014-04-04 10:59:28 -05002056#ifndef TW_OEM_BUILD
bigbiff25d25b92020-06-19 16:07:38 -04002057 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 -05002058#endif
bigbiff2d548672021-07-09 20:08:44 -04002059 if (Is_FBE) {
2060 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 -04002061 } else {
2062 if (Has_Data_Media && !Symlink_Mount_Point.empty()) {
2063 if (Mount(false))
2064 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
2065 }
bigbiff2d548672021-07-09 20:08:44 -04002066 }
2067
Ethan Yonker93382822018-11-01 15:25:31 -05002068 ret = true;
2069 if (!Key_Directory.empty())
2070 ret = PartitionManager.Wipe_By_Path(Key_Directory);
2071 if (ret)
2072 ret = base_partition->PostWipeEncryption();
2073 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002074 } else {
2075 Has_Data_Media = Save_Data_Media;
Ethan Yonker74db1572015-10-28 12:44:49 -05002076 gui_err("format_data_err=Unable to format to remove encryption.");
Ethan Yonker726a0202014-12-16 20:01:38 -06002077 if (Has_Data_Media && Mount(false))
2078 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Ethan Yonker93382822018-11-01 15:25:31 -05002079 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002080 }
Ethan Yonker93382822018-11-01 15:25:31 -05002081exit:
2082 delete base_partition;
2083 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002084}
2085
2086void TWPartition::Check_FS_Type() {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002087 const char* type;
2088 blkid_probe pr;
Dees_Troy5bf43922012-09-07 16:07:55 -04002089
Dees_Troy68cab492012-12-12 19:29:35 +00002090 if (Fstab_File_System == "yaffs2" || Fstab_File_System == "mtd" || Fstab_File_System == "bml" || Ignore_Blkid)
2091 return; // Running blkid on some mtd devices causes a massive crash or needs to be skipped
Dees_Troy5bf43922012-09-07 16:07:55 -04002092
Dees_Troy38bd7602012-09-14 13:33:53 -04002093 Find_Actual_Block_Device();
Dees_Troy8170a922012-09-18 15:40:25 -04002094 if (!Is_Present)
2095 return;
Dees_Troy51127312012-09-08 13:08:49 -04002096
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002097 pr = blkid_new_probe_from_filename(Actual_Block_Device.c_str());
2098 if (blkid_do_fullprobe(pr)) {
2099 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002100 LOGINFO("Can't probe device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002101 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04002102 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002103
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05002104 if (blkid_probe_lookup_value(pr, "TYPE", &type, NULL) < 0) {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002105 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002106 LOGINFO("can't find filesystem on device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002107 return;
2108 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002109
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002110 Current_File_System = type;
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002111 blkid_free_probe(pr);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002112 if (fs_flags.size() > 1) {
2113 std::vector<partition_fs_flags_struct>::iterator iter;
2114 std::vector<partition_fs_flags_struct>::iterator found = fs_flags.begin();
2115
2116 for (iter = fs_flags.begin(); iter != fs_flags.end(); iter++) {
2117 if (iter->File_System == Current_File_System) {
2118 found = iter;
2119 break;
2120 }
2121 }
2122 // If we don't find a match, we default the flags to the first set of flags that we received from the fstab
2123 if (Mount_Flags != found->Mount_Flags || Mount_Options != found->Mount_Options) {
2124 Mount_Flags = found->Mount_Flags;
2125 Mount_Options = found->Mount_Options;
2126 LOGINFO("Mount_Flags: %i, Mount_Options: %s\n", Mount_Flags, Mount_Options.c_str());
2127 }
2128 }
Dees_Troy51a0e822012-09-05 15:24:24 -04002129}
2130
dianlujitao4879b372018-12-03 18:45:47 +08002131bool TWPartition::Wipe_EXTFS(string File_System) {
bigbiff7ba75002020-04-11 20:47:09 -04002132 if (!UnMount(true))
2133 return false;
2134
dianlujitao4879b372018-12-03 18:45:47 +08002135#if PLATFORM_SDK_VERSION < 28
bigbiffad58e1b2020-07-06 20:24:34 -04002136 if (!TWFunc::Path_Exists("/system/bin/mke2fs"))
dianlujitao4879b372018-12-03 18:45:47 +08002137#else
bigbiffad58e1b2020-07-06 20:24:34 -04002138 if (!TWFunc::Path_Exists("/system/bin/mke2fs") || !TWFunc::Path_Exists("/system/bin/e2fsdroid"))
dianlujitao4879b372018-12-03 18:45:47 +08002139#endif
Dees_Troy38bd7602012-09-14 13:33:53 -04002140 return Wipe_RMRF();
2141
dianlujitao4879b372018-12-03 18:45:47 +08002142 int ret;
2143 bool NeedPreserveFooter = true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002144
Ethan Yonker25f20c12014-10-14 09:04:43 -05002145 Find_Actual_Block_Device();
2146 if (!Is_Present) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002147 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2148 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Ethan Yonker25f20c12014-10-14 09:04:43 -05002149 return false;
2150 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002151
dianlujitao4879b372018-12-03 18:45:47 +08002152 /**
2153 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2154 * so there's no need to preserve footer.
2155 */
2156 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2157 Crypto_Key_Location != "footer") {
2158 NeedPreserveFooter = false;
2159 }
2160
2161 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2162 if (!dev_sz)
2163 return false;
2164
2165 if (NeedPreserveFooter)
2166 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2167
Dees Troy9a4d7402019-03-21 14:17:28 -04002168 char dout[16];
2169 sprintf(dout, "%llu", dev_sz / 4096);
2170
2171 //string size_str =to_string(dev_sz / 4096);
2172 string size_str = dout;
dianlujitao4879b372018-12-03 18:45:47 +08002173 string Command;
2174
2175 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mke2fs"));
2176
2177 // Execute mke2fs to create empty ext4 filesystem
2178 Command = "mke2fs -t " + File_System + " -b 4096 " + Actual_Block_Device + " " + size_str;
2179 LOGINFO("mke2fs command: %s\n", Command.c_str());
2180 ret = TWFunc::Exec_Cmd(Command);
2181 if (ret) {
2182 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2183 return false;
2184 }
2185
bigbiffad58e1b2020-07-06 20:24:34 -04002186 if (TWFunc::Path_Exists("/system/bin/e2fsdroid")) {
dianlujitao3cf05a52019-05-15 15:33:27 +08002187 const string& File_Contexts_Entry = (Mount_Point == "/system_root" ? "/" : Mount_Point);
2188 char *secontext = NULL;
2189 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, File_Contexts_Entry.c_str(), S_IFDIR) < 0) {
2190 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
2191 } else {
2192 // Execute e2fsdroid to initialize selinux context
bigbiff5b911ca2020-07-18 10:46:09 -04002193 if (Mount_Point == "/persist") {
2194 Mount(true);
2195 TWFunc::removeDir("/persist/lost+found", false);
2196 UnMount(true);
2197 }
dianlujitao3cf05a52019-05-15 15:33:27 +08002198 Command = "e2fsdroid -e -S /file_contexts -a " + File_Contexts_Entry + " " + Actual_Block_Device;
2199 LOGINFO("e2fsdroid command: %s\n", Command.c_str());
2200 ret = TWFunc::Exec_Cmd(Command);
2201 if (ret) {
2202 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2203 return false;
2204 }
dianlujitao4879b372018-12-03 18:45:47 +08002205 }
2206 } else {
2207 LOGINFO("e2fsdroid not present\n");
2208 }
2209
2210 if (NeedPreserveFooter)
2211 Wipe_Crypto_Key();
2212 Current_File_System = File_System;
2213 Recreate_AndSec_Folder();
2214 gui_msg("done=Done.");
2215 return true;
2216}
2217
2218bool TWPartition::Wipe_EXT4() {
2219#ifdef USE_EXT4
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002220 int ret;
dianlujitao4879b372018-12-03 18:45:47 +08002221 bool NeedPreserveFooter = true;
2222
bigbiff7ba75002020-04-11 20:47:09 -04002223 if (!UnMount(true))
2224 return false;
2225
dianlujitao4879b372018-12-03 18:45:47 +08002226 Find_Actual_Block_Device();
2227 if (!Is_Present) {
2228 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2229 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2230 return false;
2231 }
dianlujitao4879b372018-12-03 18:45:47 +08002232
2233 /**
2234 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2235 * so there's no need to preserve footer.
2236 */
2237 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2238 Crypto_Key_Location != "footer") {
2239 NeedPreserveFooter = false;
2240 }
2241
2242 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2243 if (!dev_sz)
2244 return false;
2245
2246 if (NeedPreserveFooter)
2247 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2248
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002249 char *secontext = NULL;
2250
Greg Wallace4b44fef2015-12-29 15:33:24 -05002251 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("make_ext4fs"));
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002252
Dees Troy99c8dbf2014-03-10 16:53:58 +00002253 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, Mount_Point.c_str(), S_IFDIR) < 0) {
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002254 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
dianlujitao4879b372018-12-03 18:45:47 +08002255 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), NULL);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002256 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002257 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), selinux_handle);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002258 }
2259 if (ret != 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002260 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troya95f55c2013-08-17 13:14:43 +00002261 return false;
2262 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002263 if (NeedPreserveFooter)
2264 Wipe_Crypto_Key();
bigbiff bigbiffc49d7062013-10-11 20:28:00 -04002265 string sedir = Mount_Point + "/lost+found";
2266 PartitionManager.Mount_By_Path(sedir.c_str(), true);
2267 rmdir(sedir.c_str());
2268 mkdir(sedir.c_str(), S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP);
Dees_Troya95f55c2013-08-17 13:14:43 +00002269 return true;
2270 }
2271#else
dianlujitao4879b372018-12-03 18:45:47 +08002272 return Wipe_EXTFS("ext4");
Dees_Troya95f55c2013-08-17 13:14:43 +00002273#endif
Dees_Troy51a0e822012-09-05 15:24:24 -04002274}
2275
2276bool TWPartition::Wipe_FAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002277 string command;
Dees_Troy38bd7602012-09-14 13:33:53 -04002278
bigbiff7ba75002020-04-11 20:47:09 -04002279 if (!UnMount(true))
2280 return false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002281
bigbiffad58e1b2020-07-06 20:24:34 -04002282 if (TWFunc::Path_Exists("/system/bin/mkfs.fat")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002283 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.fat"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002284 Find_Actual_Block_Device();
Matt Mower18794c82015-11-11 16:22:45 -06002285 command = "mkfs.fat " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002286 if (TWFunc::Exec_Cmd(command) == 0) {
Gary Pecke8bc5d72012-12-21 06:45:25 -08002287 Current_File_System = "vfat";
Dees_Troye58d5262012-09-21 12:27:57 -04002288 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002289 gui_msg("done=Done.");
Dees_Troy38bd7602012-09-14 13:33:53 -04002290 return true;
2291 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002292 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04002293 return false;
2294 }
2295 return true;
2296 }
2297 else
2298 return Wipe_RMRF();
2299
2300 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002301}
2302
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002303bool TWPartition::Wipe_EXFAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002304 string command;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002305
bigbiff7ba75002020-04-11 20:47:09 -04002306 if (!UnMount(true))
2307 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04002308 if (TWFunc::Path_Exists("/system/bin/mkexfatfs")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002309 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkexfatfs"));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002310 Find_Actual_Block_Device();
2311 command = "mkexfatfs " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002312 if (TWFunc::Exec_Cmd(command) == 0) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002313 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002314 gui_msg("done=Done.");
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002315 return true;
2316 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002317 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002318 return false;
2319 }
2320 return true;
2321 }
2322 return false;
2323}
2324
Dees_Troy38bd7602012-09-14 13:33:53 -04002325bool TWPartition::Wipe_MTD() {
2326 if (!UnMount(true))
2327 return false;
2328
Greg Wallace4b44fef2015-12-29 15:33:24 -05002329 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("MTD"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002330
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002331 mtd_scan_partitions();
2332 const MtdPartition* mtd = mtd_find_partition_by_name(MTD_Name.c_str());
2333 if (mtd == NULL) {
2334 LOGERR("No mtd partition named '%s'", MTD_Name.c_str());
2335 return false;
2336 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002337
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002338 MtdWriteContext* ctx = mtd_write_partition(mtd);
2339 if (ctx == NULL) {
2340 LOGERR("Can't write '%s', failed to format.", MTD_Name.c_str());
2341 return false;
2342 }
2343 if (mtd_erase_blocks(ctx, -1) == -1) {
2344 mtd_write_close(ctx);
2345 LOGERR("Failed to format '%s'", MTD_Name.c_str());
2346 return false;
2347 }
2348 if (mtd_write_close(ctx) != 0) {
2349 LOGERR("Failed to close '%s'", MTD_Name.c_str());
2350 return false;
2351 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08002352 Current_File_System = "yaffs2";
Dees_Troye58d5262012-09-21 12:27:57 -04002353 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002354 gui_msg("done=Done.");
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002355 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002356}
2357
2358bool TWPartition::Wipe_RMRF() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002359 if (!Mount(true))
2360 return false;
Ethan Yonker726a0202014-12-16 20:01:38 -06002361 // This is the only wipe that leaves the partition mounted, so we
2362 // must manually remove the partition from MTP if it is a storage
2363 // partition.
2364 if (Is_Storage)
2365 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
Dees_Troy38bd7602012-09-14 13:33:53 -04002366
Ethan Yonker74db1572015-10-28 12:44:49 -05002367 gui_msg(Msg("remove_all=Removing all files under '{1}'")(Mount_Point));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002368 TWFunc::removeDir(Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04002369 Recreate_AndSec_Folder();
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002370 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002371}
2372
Dees_Troye5017042013-08-29 16:38:55 +00002373bool TWPartition::Wipe_F2FS() {
systemaddb475c92021-08-12 20:33:20 +02002374 std::string f2fs_command;
Dees_Troye5017042013-08-29 16:38:55 +00002375
bigbiff7ba75002020-04-11 20:47:09 -04002376 if (!UnMount(true))
2377 return false;
dianlujitao4879b372018-12-03 18:45:47 +08002378
bigbiffad58e1b2020-07-06 20:24:34 -04002379 if (TWFunc::Path_Exists("/system/bin/mkfs.f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002380 f2fs_command = "/system/bin/mkfs.f2fs";
bigbiffad58e1b2020-07-06 20:24:34 -04002381 else if (TWFunc::Path_Exists("/system/bin/make_f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002382 f2fs_command = "/system/bin/make_f2fs -g android";
bigbiff7ba75002020-04-11 20:47:09 -04002383 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002384 LOGINFO("mkfs.f2fs binary not found, using rm -rf to wipe.\n");
Dees_Troye5017042013-08-29 16:38:55 +00002385 return Wipe_RMRF();
2386 }
bigbiff7ba75002020-04-11 20:47:09 -04002387
2388 bool NeedPreserveFooter = true;
systemaddb475c92021-08-12 20:33:20 +02002389 bool needs_casefold = false;
2390 bool needs_projid = false;
bigbiff7ba75002020-04-11 20:47:09 -04002391
2392 Find_Actual_Block_Device();
2393 if (!Is_Present) {
2394 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2395 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2396 return false;
2397 }
systemaddb475c92021-08-12 20:33:20 +02002398
2399 needs_casefold = android::base::GetBoolProperty("external_storage.casefold.enabled", false);
2400 needs_projid = android::base::GetBoolProperty("external_storage.projid.enabled", false);
bigbiff7ba75002020-04-11 20:47:09 -04002401 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2402 if (!dev_sz)
2403 return false;
2404
2405 if (NeedPreserveFooter)
2406 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
bigbiff7ba75002020-04-11 20:47:09 -04002407 char dev_sz_str[48];
2408 sprintf(dev_sz_str, "%llu", (dev_sz / 4096));
systemaddb475c92021-08-12 20:33:20 +02002409 if(needs_projid)
2410 f2fs_command += " -O project_quota,extra_attr";
2411
2412 if(needs_casefold)
2413 f2fs_command += " -O casefold -C utf8";
2414
2415 f2fs_command += " " + Actual_Block_Device + " " + dev_sz_str;
2416
bigbiffad58e1b2020-07-06 20:24:34 -04002417 if (TWFunc::Path_Exists("/system/bin/sload.f2fs")) {
systemaddb475c92021-08-12 20:33:20 +02002418 f2fs_command += " && sload.f2fs -t /data " + Actual_Block_Device;
bigbiff7ba75002020-04-11 20:47:09 -04002419 }
2420
2421 /**
2422 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2423 * so there's no need to preserve footer.
2424 */
2425 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2426 Crypto_Key_Location != "footer") {
2427 NeedPreserveFooter = false;
2428 }
systemaddb475c92021-08-12 20:33:20 +02002429 LOGINFO("mkfs.f2fs command: %s\n", f2fs_command.c_str());
2430 if (TWFunc::Exec_Cmd(f2fs_command) == 0) {
bigbiff7ba75002020-04-11 20:47:09 -04002431 if (NeedPreserveFooter)
2432 Wipe_Crypto_Key();
2433 Recreate_AndSec_Folder();
2434 gui_msg("done=Done.");
2435 return true;
2436 } else {
2437 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2438 return false;
2439 }
2440 return true;
Dees_Troye5017042013-08-29 16:38:55 +00002441}
2442
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002443bool TWPartition::Wipe_NTFS() {
2444 string command;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002445 string Ntfsmake_Binary;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002446
bigbiff7ba75002020-04-11 20:47:09 -04002447 if (!UnMount(true))
2448 return false;
2449
bigbiffad58e1b2020-07-06 20:24:34 -04002450 if (TWFunc::Path_Exists("/system/bin/mkntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002451 Ntfsmake_Binary = "mkntfs";
bigbiffad58e1b2020-07-06 20:24:34 -04002452 else if (TWFunc::Path_Exists("/system/bin/mkfs.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002453 Ntfsmake_Binary = "mkfs.ntfs";
2454 else
2455 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002456
Greg Wallace4b44fef2015-12-29 15:33:24 -05002457 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)(Ntfsmake_Binary));
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002458 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04002459 command = "/system/bin/" + Ntfsmake_Binary + " " + Actual_Block_Device;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002460 if (TWFunc::Exec_Cmd(command) == 0) {
2461 Recreate_AndSec_Folder();
2462 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002463 return true;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002464 } else {
2465 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2466 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002467 }
2468 return false;
2469}
2470
Dees_Troy51a0e822012-09-05 15:24:24 -04002471bool TWPartition::Wipe_Data_Without_Wiping_Media() {
Ethan Yonker83e82572014-04-04 10:59:28 -05002472#ifdef TW_OEM_BUILD
2473 // In an OEM Build we want to do a full format
2474 return Wipe_Encryption();
2475#else
Ethan Yonker66a19492015-12-10 10:19:45 -06002476 bool ret = false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002477
Dees_Troy38bd7602012-09-14 13:33:53 -04002478 if (!Mount(true))
2479 return false;
2480
Ethan Yonker74db1572015-10-28 12:44:49 -05002481 gui_msg("wiping_data=Wiping data without wiping /data/media ...");
Ethan Yonker66a19492015-12-10 10:19:45 -06002482 ret = Wipe_Data_Without_Wiping_Media_Func(Mount_Point + "/");
2483 if (ret)
2484 gui_msg("done=Done.");
2485 return ret;
2486#endif // ifdef TW_OEM_BUILD
2487}
2488
2489bool TWPartition::Wipe_Data_Without_Wiping_Media_Func(const string& parent __unused) {
2490 string dir;
Dees_Troy38bd7602012-09-14 13:33:53 -04002491
2492 DIR* d;
Ethan Yonker66a19492015-12-10 10:19:45 -06002493 d = opendir(parent.c_str());
Dees_Troy16b74352012-11-14 22:27:31 +00002494 if (d != NULL) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002495 struct dirent* de;
2496 while ((de = readdir(d)) != NULL) {
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002497 if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002498
Ethan Yonker66a19492015-12-10 10:19:45 -06002499 dir = parent;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002500 dir.append(de->d_name);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002501 if (wipe_exclusions.check_skip_dirs(dir)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002502 LOGINFO("skipped '%s'\n", dir.c_str());
2503 continue;
2504 }
Dees_Troyce675462013-01-09 19:48:21 +00002505 if (de->d_type == DT_DIR) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002506 dir.append("/");
2507 if (!Wipe_Data_Without_Wiping_Media_Func(dir)) {
2508 closedir(d);
2509 return false;
2510 }
2511 rmdir(dir.c_str());
bigbiff bigbiff98f1f902013-01-19 18:46:13 -05002512 } 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 +03002513 if (unlink(dir.c_str()) != 0)
Ethan Yonker79f88bd2016-12-09 14:52:12 -06002514 LOGINFO("Unable to unlink '%s': %s\n", dir.c_str(), strerror(errno));
Dees_Troyce675462013-01-09 19:48:21 +00002515 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002516 }
2517 closedir(d);
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002518
Dees_Troy16b74352012-11-14 22:27:31 +00002519 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04002520 }
Ethan Yonker74db1572015-10-28 12:44:49 -05002521 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy16b74352012-11-14 22:27:31 +00002522 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002523}
2524
dianlujitao4879b372018-12-03 18:45:47 +08002525void TWPartition::Wipe_Crypto_Key() {
2526 Find_Actual_Block_Device();
2527 if (Crypto_Key_Location.empty())
2528 return;
2529 else if (Crypto_Key_Location == "footer") {
2530 int fd = open(Actual_Block_Device.c_str(), O_RDWR);
2531 if (fd < 0) {
2532 gui_print_color("warning", "Unable to open '%s' to wipe crypto key\n", Actual_Block_Device.c_str());
2533 return;
2534 }
2535
2536 unsigned int block_count;
2537 if ((ioctl(fd, BLKGETSIZE, &block_count)) == -1) {
2538 gui_print_color("warning", "Unable to get block size for wiping crypto footer.\n");
2539 } else {
2540 int newlen = Length < 0 ? -Length : CRYPT_FOOTER_OFFSET;
2541 off64_t offset = ((off64_t)block_count * 512) - newlen;
2542 if (lseek64(fd, offset, SEEK_SET) == -1) {
2543 gui_print_color("warning", "Unable to lseek64 for wiping crypto footer.\n");
2544 } else {
2545 void* buffer = malloc(newlen);
2546 if (!buffer) {
2547 gui_print_color("warning", "Failed to malloc for wiping crypto footer.\n");
2548 } else {
2549 memset(buffer, 0, newlen);
2550 int ret = write(fd, buffer, newlen);
2551 if (ret != newlen) {
2552 gui_print_color("warning", "Failed to wipe crypto footer.\n");
2553 } else {
2554 LOGINFO("Successfully wiped crypto footer.\n");
2555 }
2556 free(buffer);
2557 }
2558 }
2559 }
2560 close(fd);
2561 } else {
2562 if (TWFunc::IOCTL_Get_Block_Size(Crypto_Key_Location.c_str()) >= 16384LLU) {
2563 string Command = "dd of='" + Crypto_Key_Location + "' if=/dev/zero bs=16384 count=1";
2564 TWFunc::Exec_Cmd(Command);
2565 } else {
2566 LOGINFO("Crypto key location reports size < 16K so not wiping crypto footer.\n");
2567 }
2568 }
2569}
2570
bigbiffce8f83c2015-12-12 18:30:21 -05002571bool TWPartition::Backup_Tar(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002572 string Full_FileName;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002573 twrpTar tar;
bigbiff bigbiffcdcfee42013-02-27 21:11:26 -05002574
Dees_Troy43d8b002012-09-17 16:00:01 -04002575 if (!Mount(true))
2576 return false;
2577
Ian Macdonalda3b25a32019-06-16 22:39:14 +02002578 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Backup_Display_Name, gui_parse_text("{@backing}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002579 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002580
Ethan Yonker472f5062016-02-25 13:47:30 -06002581 DataManager::GetValue(TW_USE_COMPRESSION_VAR, tar.use_compression);
Matt Mowerbb81e5d2014-03-20 18:05:41 -05002582
Dees_Troy83bd4832013-05-04 12:39:56 +00002583#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
Ethan Yonker472f5062016-02-25 13:47:30 -06002584 if (Can_Encrypt_Backup) {
2585 DataManager::GetValue("tw_encrypt_backup", tar.use_encryption);
2586 if (tar.use_encryption) {
2587 if (Use_Userdata_Encryption)
2588 tar.userdata_encryption = tar.use_encryption;
2589 string Password;
2590 DataManager::GetValue("tw_backup_password", Password);
2591 tar.setpassword(Password);
2592 } else {
2593 tar.use_encryption = 0;
2594 }
Dees_Troy83bd4832013-05-04 12:39:56 +00002595 }
2596#endif
Dees_Troy43d8b002012-09-17 16:00:01 -04002597
Ethan Yonker472f5062016-02-25 13:47:30 -06002598 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002599 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker01f4e032017-02-03 15:30:52 -06002600 if (Has_Data_Media)
2601 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 -04002602 if (Mount_Point == "/data" && DataManager::GetIntValue(TW_IS_FBE)) {
2603 std::vector<users_struct>::iterator iter;
2604 std::vector<users_struct>* userList = PartitionManager.Get_Users_List();
2605 for (iter = userList->begin(); iter != userList->end(); iter++) {
2606 if (!(*iter).isDecrypted && (*iter).userId != "0") {
2607 gui_msg(Msg(msg::kWarning,
2608 "backup_storage_undecrypt_warning=Backup will not include some files from user {1} "
2609 "because the user is not decrypted.")((*iter).userId));
2610 backup_exclusions.add_absolute_dir("/data/system_ce/" + (*iter).userId);
2611 backup_exclusions.add_absolute_dir("/data/misc_ce/" + (*iter).userId);
2612 backup_exclusions.add_absolute_dir("/data/vendor_ce/" + (*iter).userId);
2613 backup_exclusions.add_absolute_dir("/data/media/" + (*iter).userId);
2614 backup_exclusions.add_absolute_dir("/data/user/" + (*iter).userId);
2615 }
2616 }
2617 }
bigbiffce8f83c2015-12-12 18:30:21 -05002618 tar.part_settings = part_settings;
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002619 tar.backup_exclusions = &backup_exclusions;
Dees Troye0a433a2013-12-02 04:10:37 +00002620 tar.setdir(Backup_Path);
2621 tar.setfn(Full_FileName);
2622 tar.setsize(Backup_Size);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002623 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002624 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002625 if (tar.createTarFork(tar_fork_pid) != 0)
Dees Troye0a433a2013-12-02 04:10:37 +00002626 return false;
Dees_Troy43d8b002012-09-17 16:00:01 -04002627 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002628}
2629
bigbiffce8f83c2015-12-12 18:30:21 -05002630bool TWPartition::Backup_Image(PartitionSettings *part_settings) {
2631 string Full_FileName, adb_file_name;
igoriok87e3d932013-01-31 21:03:53 +02002632
Ethan Yonker74db1572015-10-28 12:44:49 -05002633 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2634 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002635
Ethan Yonker472f5062016-02-25 13:47:30 -06002636 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Dees_Troy43d8b002012-09-17 16:00:01 -04002637
bigbiffce8f83c2015-12-12 18:30:21 -05002638 if (part_settings->adbbackup) {
2639 Full_FileName = TW_ADB_BACKUP;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002640 adb_file_name = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002641 }
2642 else
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002643 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002644
2645 part_settings->total_restore_size = Backup_Size;
2646
2647 if (part_settings->adbbackup) {
2648 if (!twadbbu::Write_TWIMG(adb_file_name, Backup_Size))
2649 return false;
2650 }
2651
2652 if (!Raw_Read_Write(part_settings))
Ethan Yonker472f5062016-02-25 13:47:30 -06002653 return false;
2654
bigbiffce8f83c2015-12-12 18:30:21 -05002655 if (part_settings->adbbackup) {
2656 if (!twadbbu::Write_TWEOF())
2657 return false;
Dees_Troy7c2dec82012-09-26 09:49:14 -04002658 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002659 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002660}
2661
bigbiffce8f83c2015-12-12 18:30:21 -05002662bool TWPartition::Raw_Read_Write(PartitionSettings *part_settings) {
2663 unsigned long long RW_Block_Size, Remain = Backup_Size;
2664 int src_fd = -1, dest_fd = -1;
2665 ssize_t bs;
Ethan Yonker472f5062016-02-25 13:47:30 -06002666 bool ret = false;
2667 void* buffer = NULL;
2668 unsigned long long backedup_size = 0;
bigbiffce8f83c2015-12-12 18:30:21 -05002669 string srcfn, destfn;
Ethan Yonker472f5062016-02-25 13:47:30 -06002670
bigbiffce8f83c2015-12-12 18:30:21 -05002671 if (part_settings->PM_Method == PM_BACKUP) {
2672 srcfn = Actual_Block_Device;
2673 if (part_settings->adbbackup)
2674 destfn = TW_ADB_BACKUP;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002675 else {
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002676 destfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002677 }
bigbiffce8f83c2015-12-12 18:30:21 -05002678 }
2679 else {
2680 destfn = Actual_Block_Device;
2681 if (part_settings->adbbackup) {
2682 srcfn = TW_ADB_RESTORE;
2683 } else {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002684 srcfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002685 Remain = TWFunc::Get_File_Size(srcfn);
2686 }
2687 }
Ethan Yonker472f5062016-02-25 13:47:30 -06002688
bigbiffce8f83c2015-12-12 18:30:21 -05002689 src_fd = open(srcfn.c_str(), O_RDONLY | O_LARGEFILE);
Ethan Yonker472f5062016-02-25 13:47:30 -06002690 if (src_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002691 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(srcfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002692 return false;
2693 }
bigbiffce8f83c2015-12-12 18:30:21 -05002694
2695 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 -06002696 if (dest_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002697 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(destfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002698 goto exit;
2699 }
bigbiff bigbiff19fb79c2016-09-05 21:04:51 -04002700
bigbiffce8f83c2015-12-12 18:30:21 -05002701 LOGINFO("Reading '%s', writing '%s'\n", srcfn.c_str(), destfn.c_str());
2702
2703 if (part_settings->adbbackup) {
2704 RW_Block_Size = MAX_ADB_READ;
2705 bs = MAX_ADB_READ;
2706 }
2707 else {
2708 RW_Block_Size = 1048576LLU; // 1MB
2709 bs = (ssize_t)(RW_Block_Size);
2710 }
2711
Ethan Yonker472f5062016-02-25 13:47:30 -06002712 buffer = malloc((size_t)bs);
2713 if (!buffer) {
2714 LOGINFO("Raw_Read_Write failed to malloc\n");
2715 goto exit;
2716 }
bigbiffce8f83c2015-12-12 18:30:21 -05002717
2718 if (part_settings->progress)
2719 part_settings->progress->SetPartitionSize(part_settings->total_restore_size);
2720
Ethan Yonker472f5062016-02-25 13:47:30 -06002721 while (Remain > 0) {
2722 if (Remain < RW_Block_Size)
bigbiffce8f83c2015-12-12 18:30:21 -05002723 bs = (ssize_t)(Remain);
Matt Mowera8a89d12016-12-30 18:10:37 -06002724 if (read(src_fd, buffer, bs) != bs) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002725 LOGINFO("Error reading source fd (%s)\n", strerror(errno));
2726 goto exit;
2727 }
2728 if (write(dest_fd, buffer, bs) != bs) {
2729 LOGINFO("Error writing destination fd (%s)\n", strerror(errno));
2730 goto exit;
2731 }
2732 backedup_size += (unsigned long long)(bs);
Matt Mower029a82d2017-01-08 13:12:38 -06002733 Remain -= (unsigned long long)(bs);
bigbiffce8f83c2015-12-12 18:30:21 -05002734 if (part_settings->progress)
2735 part_settings->progress->UpdateSize(backedup_size);
Ethan Yonker472f5062016-02-25 13:47:30 -06002736 if (PartitionManager.Check_Backup_Cancel() != 0)
2737 goto exit;
2738 }
bigbiffce8f83c2015-12-12 18:30:21 -05002739 if (part_settings->progress)
2740 part_settings->progress->UpdateDisplayDetails(true);
Ethan Yonker472f5062016-02-25 13:47:30 -06002741 fsync(dest_fd);
nailyka083dc62016-11-11 21:41:28 +01002742
2743 if (!part_settings->adbbackup && part_settings->PM_Method == PM_BACKUP) {
2744 tw_set_default_metadata(destfn.c_str());
2745 LOGINFO("Restored default metadata for %s\n", destfn.c_str());
2746 }
2747
Ethan Yonker472f5062016-02-25 13:47:30 -06002748 ret = true;
2749exit:
2750 if (src_fd >= 0)
2751 close(src_fd);
2752 if (dest_fd >= 0)
2753 close(dest_fd);
2754 if (buffer)
2755 free(buffer);
2756 return ret;
2757}
2758
bigbiffce8f83c2015-12-12 18:30:21 -05002759bool TWPartition::Backup_Dump_Image(PartitionSettings *part_settings) {
Vojtech Bocek05534202013-09-11 08:11:56 +02002760 string Full_FileName, Command;
Dees_Troy43d8b002012-09-17 16:00:01 -04002761
Ethan Yonker74db1572015-10-28 12:44:49 -05002762 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2763 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002764
bigbiffce8f83c2015-12-12 18:30:21 -05002765 if (part_settings->progress)
2766 part_settings->progress->SetPartitionSize(Backup_Size);
Dees_Troy43d8b002012-09-17 16:00:01 -04002767
Ethan Yonker472f5062016-02-25 13:47:30 -06002768 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002769 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Dees_Troy43d8b002012-09-17 16:00:01 -04002770
2771 Command = "dump_image " + MTD_Name + " '" + Full_FileName + "'";
bigbiffce8f83c2015-12-12 18:30:21 -05002772
Dees_Troy2673cec2013-04-02 20:22:16 +00002773 LOGINFO("Backup command: '%s'\n", Command.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02002774 TWFunc::Exec_Cmd(Command);
Ethan Yonker4b94cfd2014-12-11 10:00:45 -06002775 tw_set_default_metadata(Full_FileName.c_str());
Dees_Troy7c2dec82012-09-26 09:49:14 -04002776 if (TWFunc::Get_File_Size(Full_FileName) == 0) {
2777 // 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 -06002778 gui_msg(Msg(msg::kError, "backup_size=Backup file size for '{1}' is 0 bytes.")(Full_FileName));
Dees_Troy7c2dec82012-09-26 09:49:14 -04002779 return false;
2780 }
bigbiffce8f83c2015-12-12 18:30:21 -05002781 if (part_settings->progress)
2782 part_settings->progress->UpdateSize(Backup_Size);
2783
Dees_Troy43d8b002012-09-17 16:00:01 -04002784 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002785}
2786
bigbiffce8f83c2015-12-12 18:30:21 -05002787unsigned long long TWPartition::Get_Restore_Size(PartitionSettings *part_settings) {
2788 if (!part_settings->adbbackup) {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002789 InfoManager restore_info(part_settings->Backup_Folder + "/" + Backup_Name + ".info");
bigbiffce8f83c2015-12-12 18:30:21 -05002790 if (restore_info.LoadValues() == 0) {
2791 if (restore_info.GetValue("backup_size", Restore_Size) == 0) {
2792 LOGINFO("Read info file, restore size is %llu\n", Restore_Size);
2793 return Restore_Size;
2794 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002795 }
2796 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002797
Matt Mower029a82d2017-01-08 13:12:38 -06002798 string Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
2799 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002800
2801 if (Is_Image(Restore_File_System)) {
2802 Restore_Size = TWFunc::Get_File_Size(Full_FileName);
2803 return Restore_Size;
2804 }
2805
2806 twrpTar tar;
2807 tar.setdir(Backup_Path);
2808 tar.setfn(Full_FileName);
bigbiffce8f83c2015-12-12 18:30:21 -05002809 tar.backup_name = Full_FileName;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002810#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2811 string Password;
2812 DataManager::GetValue("tw_restore_password", Password);
2813 if (!Password.empty())
2814 tar.setpassword(Password);
2815#endif
2816 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002817 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002818 tar.part_settings = part_settings;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002819 Restore_Size = tar.get_size();
2820 return Restore_Size;
2821}
2822
bigbiffce8f83c2015-12-12 18:30:21 -05002823bool TWPartition::Restore_Tar(PartitionSettings *part_settings) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002824 string Full_FileName;
Dees Troy4159aed2014-02-28 17:24:43 +00002825 bool ret = false;
bigbiffce8f83c2015-12-12 18:30:21 -05002826 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002827
Dees_Troye58d5262012-09-21 12:27:57 -04002828 if (Has_Android_Secure) {
Dees_Troye58d5262012-09-21 12:27:57 -04002829 if (!Wipe_AndSec())
2830 return false;
Gary Peck43acadf2012-11-21 21:19:01 -08002831 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002832 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
Ethan Yonker5eac2222014-06-11 12:22:55 -05002833 if (Has_Data_Media && Mount_Point == "/data" && Restore_File_System != Current_File_System) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002834 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 -05002835 if (!Wipe_Data_Without_Wiping_Media())
2836 return false;
2837 } else {
2838 if (!Wipe(Restore_File_System))
2839 return false;
2840 }
Dees_Troye58d5262012-09-21 12:27:57 -04002841 }
Matt Mower3c366972015-12-25 19:28:31 -06002842 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002843 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002844
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002845 // Remount as read/write as needed so we can restore the backup
2846 if (!ReMount_RW(true))
Dees_Troy43d8b002012-09-17 16:00:01 -04002847 return false;
2848
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002849 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker87af5632014-02-10 11:56:35 -06002850 twrpTar tar;
bigbiffce8f83c2015-12-12 18:30:21 -05002851 tar.part_settings = part_settings;
Ethan Yonker87af5632014-02-10 11:56:35 -06002852 tar.setdir(Backup_Path);
2853 tar.setfn(Full_FileName);
2854 tar.backup_name = Backup_Name;
2855#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2856 string Password;
2857 DataManager::GetValue("tw_restore_password", Password);
2858 if (!Password.empty())
2859 tar.setpassword(Password);
2860#endif
bigbiffce8f83c2015-12-12 18:30:21 -05002861 part_settings->progress->SetPartitionSize(Get_Restore_Size(part_settings));
2862 if (tar.extractTarFork() != 0)
Dees Troy4159aed2014-02-28 17:24:43 +00002863 ret = false;
2864 else
2865 ret = true;
2866#ifdef HAVE_CAPABILITIES
2867 // Restore capabilities to the run-as binary
Captain Throwback9d6feb52018-07-27 10:05:24 -04002868 if (Mount_Point == PartitionManager.Get_Android_Root_Path() && Mount(true) && TWFunc::Path_Exists("/system/bin/run-as")) {
Dees Troy4159aed2014-02-28 17:24:43 +00002869 struct vfs_cap_data cap_data;
2870 uint64_t capabilities = (1 << CAP_SETUID) | (1 << CAP_SETGID);
2871
2872 memset(&cap_data, 0, sizeof(cap_data));
2873 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
2874 cap_data.data[0].permitted = (uint32_t) (capabilities & 0xffffffff);
2875 cap_data.data[0].inheritable = 0;
2876 cap_data.data[1].permitted = (uint32_t) (capabilities >> 32);
2877 cap_data.data[1].inheritable = 0;
2878 if (setxattr("/system/bin/run-as", XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
2879 LOGINFO("Failed to reset capabilities of /system/bin/run-as binary.\n");
2880 } else {
2881 LOGINFO("Reset capabilities of /system/bin/run-as binary successful.\n");
2882 }
2883 }
2884#endif
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002885 if (Mount_Read_Only || Mount_Flags & MS_RDONLY)
2886 // Remount as read only when restoration is complete
2887 ReMount(true);
2888
Dees Troy4159aed2014-02-28 17:24:43 +00002889 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002890}
2891
bigbiffce8f83c2015-12-12 18:30:21 -05002892bool TWPartition::Restore_Image(PartitionSettings *part_settings) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06002893 string Full_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002894 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002895
Matt Mower3c366972015-12-25 19:28:31 -06002896 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002897 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
bigbiffce8f83c2015-12-12 18:30:21 -05002898
2899 if (part_settings->adbbackup)
2900 Full_FileName = TW_ADB_RESTORE;
2901 else
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002902 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Gary Peck15e623d2012-11-21 21:07:58 -08002903
Ethan Yonker96af84a2015-01-05 14:58:36 -06002904 if (Restore_File_System == "emmc") {
bigbiffce8f83c2015-12-12 18:30:21 -05002905 if (!part_settings->adbbackup)
2906 part_settings->total_restore_size = (uint64_t)(TWFunc::Get_File_Size(Full_FileName));
2907 if (!Raw_Read_Write(part_settings))
Ethan Yonker96af84a2015-01-05 14:58:36 -06002908 return false;
2909 } else if (Restore_File_System == "mtd" || Restore_File_System == "bml") {
bigbiffce8f83c2015-12-12 18:30:21 -05002910 if (!Flash_Image_FI(Full_FileName, part_settings->progress))
2911 return false;
2912 }
2913
2914 if (part_settings->adbbackup) {
2915 if (!twadbbu::Write_TWEOF())
Ethan Yonker96af84a2015-01-05 14:58:36 -06002916 return false;
Gary Peck15e623d2012-11-21 21:07:58 -08002917 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002918 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002919}
Dees_Troy5bf43922012-09-07 16:07:55 -04002920
2921bool TWPartition::Update_Size(bool Display_Error) {
Dees_Troy0550cfb2012-10-13 11:56:13 -04002922 bool ret = false, Was_Already_Mounted = false;
Dees_Troy51127312012-09-08 13:08:49 -04002923
Ethan Yonker1b190162016-12-05 15:25:19 -06002924 Find_Actual_Block_Device();
2925
bigbiffee7b7ff2020-03-23 15:08:27 -04002926 if (Actual_Block_Device.empty())
2927 return false;
2928
Ethan Yonker1b190162016-12-05 15:25:19 -06002929 if (!Can_Be_Mounted && !Is_Encrypted) {
2930 if (TWFunc::Path_Exists(Actual_Block_Device) && Find_Partition_Size()) {
2931 Used = Size;
2932 Backup_Size = Size;
2933 return true;
2934 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002935 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002936 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002937
Dees_Troy0550cfb2012-10-13 11:56:13 -04002938 Was_Already_Mounted = Is_Mounted();
bigbiffee7b7ff2020-03-23 15:08:27 -04002939
Dees_Troy38bd7602012-09-14 13:33:53 -04002940 if (Removable || Is_Encrypted) {
2941 if (!Mount(false))
2942 return true;
2943 } else if (!Mount(Display_Error))
Dees_Troy5bf43922012-09-07 16:07:55 -04002944 return false;
Dees_Troy51127312012-09-08 13:08:49 -04002945
2946 ret = Get_Size_Via_statfs(Display_Error);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002947 if (!ret || Size == 0) {
2948 if (!Get_Size_Via_df(Display_Error)) {
2949 if (!Was_Already_Mounted)
2950 UnMount(false);
Dees_Troy51127312012-09-08 13:08:49 -04002951 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002952 }
2953 }
Dees_Troy51127312012-09-08 13:08:49 -04002954
Dees_Troy5bf43922012-09-07 16:07:55 -04002955 if (Has_Data_Media) {
2956 if (Mount(Display_Error)) {
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002957 Used = backup_exclusions.Get_Folder_Size(Mount_Point);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002958 Backup_Size = Used;
2959 int bak = (int)(Used / 1048576LLU);
Dees_Troy51127312012-09-08 13:08:49 -04002960 int fre = (int)(Free / 1048576LLU);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002961 LOGINFO("Data backup size is %iMB, free: %iMB.\n", bak, fre);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002962 } else {
2963 if (!Was_Already_Mounted)
2964 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002965 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002966 }
Dees_Troye58d5262012-09-21 12:27:57 -04002967 } else if (Has_Android_Secure) {
2968 if (Mount(Display_Error))
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002969 Backup_Size = backup_exclusions.Get_Folder_Size(Backup_Path);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002970 else {
2971 if (!Was_Already_Mounted)
2972 UnMount(false);
Dees_Troye58d5262012-09-21 12:27:57 -04002973 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002974 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002975 }
Dees_Troy0550cfb2012-10-13 11:56:13 -04002976 if (!Was_Already_Mounted)
2977 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002978 return true;
Dees_Troy51127312012-09-08 13:08:49 -04002979}
Dees_Troy38bd7602012-09-14 13:33:53 -04002980
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002981bool TWPartition::Find_Wildcard_Block_Devices(const string& Device) {
2982 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
2983 string Path = TWFunc::Get_Path(Device);
2984 string Dev = TWFunc::Get_Filename(Device);
2985 size_t wildcard_index = Dev.find("*");
2986 if (wildcard_index != string::npos)
2987 Dev = Dev.substr(0, wildcard_index);
2988 wildcard_index = Dev.size();
2989 DIR* d = opendir(Path.c_str());
2990 if (d == NULL) {
2991 LOGINFO("Error opening '%s': %s\n", Path.c_str(), strerror(errno));
2992 return false;
2993 }
2994 struct dirent* de;
2995 while ((de = readdir(d)) != NULL) {
2996 if (de->d_type != DT_BLK || strlen(de->d_name) <= wildcard_index || strncmp(de->d_name, Dev.c_str(), wildcard_index) != 0)
2997 continue;
2998
2999 string item = Path + "/";
3000 item.append(de->d_name);
3001 if (PartitionManager.Find_Partition_By_Block_Device(item))
3002 continue;
3003 TWPartition *part = new TWPartition;
3004 char buffer[MAX_FSTAB_LINE_LENGTH];
3005 sprintf(buffer, "%s %s-%i auto defaults defaults", item.c_str(), Mount_Point.c_str(), ++mount_point_index);
bigbiff8da46fa2020-09-08 16:42:34 -04003006 part->Process_Fstab_Line(buffer, false, NULL);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003007 char display[MAX_FSTAB_LINE_LENGTH];
3008 sprintf(display, "%s %i", Storage_Name.c_str(), mount_point_index);
3009 part->Storage_Name = display;
3010 part->Display_Name = display;
3011 part->Primary_Block_Device = item;
3012 part->Wildcard_Block_Device = false;
3013 part->Is_SubPartition = true;
3014 part->SubPartition_Of = Mount_Point;
3015 part->Is_Storage = Is_Storage;
3016 part->Can_Be_Mounted = true;
3017 part->Removable = true;
3018 part->Can_Be_Wiped = Can_Be_Wiped;
3019 part->Wipe_Available_in_GUI = Wipe_Available_in_GUI;
3020 part->Find_Actual_Block_Device();
3021 part->Update_Size(false);
3022 Has_SubPartition = true;
3023 PartitionManager.Output_Partition(part);
3024 PartitionManager.Add_Partition(part);
3025 }
3026 closedir(d);
3027 return (mount_point_index > 0);
3028}
3029
Dees_Troy38bd7602012-09-14 13:33:53 -04003030void TWPartition::Find_Actual_Block_Device(void) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003031 if (!Sysfs_Entry.empty() && Primary_Block_Device.empty() && Decrypted_Block_Device.empty()) {
3032 /* Sysfs_Entry.empty() indicates if this is a sysfs entry that begins with /device/
3033 * If we have a syfs entry then we are looking for this device from a uevent add.
3034 * The uevent add will set the primary block device based on the data we receive from
3035 * after checking for adopted storage. If the device ends up being adopted, then the
3036 * decrypted block device will be set instead of the primary block device. */
3037 Is_Present = false;
3038 return;
3039 }
3040 if (Wildcard_Block_Device && !Is_Adopted_Storage) {
3041 Is_Present = false;
3042 Actual_Block_Device = "";
3043 Can_Be_Mounted = false;
3044 if (!Find_Wildcard_Block_Devices(Primary_Block_Device)) {
3045 string Dev = Primary_Block_Device.substr(0, Primary_Block_Device.find("*"));
3046 if (TWFunc::Path_Exists(Dev)) {
3047 Is_Present = true;
3048 Can_Be_Mounted = true;
3049 Actual_Block_Device = Dev;
3050 }
3051 }
3052 return;
3053 } else if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003054 Actual_Block_Device = Decrypted_Block_Device;
Ethan Yonker1b190162016-12-05 15:25:19 -06003055 if (TWFunc::Path_Exists(Decrypted_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003056 Is_Present = true;
Ethan Yonker1b190162016-12-05 15:25:19 -06003057 return;
3058 }
3059 } else if (SlotSelect && TWFunc::Path_Exists(Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix())) {
3060 Actual_Block_Device = Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix();
3061 unlink(Primary_Block_Device.c_str());
3062 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
3063 Is_Present = true;
3064 return;
Dees_Troy43d8b002012-09-17 16:00:01 -04003065 } else if (TWFunc::Path_Exists(Primary_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003066 Is_Present = true;
3067 Actual_Block_Device = Primary_Block_Device;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003068 return;
3069 }
Ethan Yonker1b190162016-12-05 15:25:19 -06003070 if (!Alternate_Block_Device.empty() && TWFunc::Path_Exists(Alternate_Block_Device)) {
Dees_Troy3f04d032012-10-07 18:20:09 -04003071 Actual_Block_Device = Alternate_Block_Device;
Dees_Troy38bd7602012-09-14 13:33:53 -04003072 Is_Present = true;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003073 } else {
Dees_Troy38bd7602012-09-14 13:33:53 -04003074 Is_Present = false;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003075 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003076}
3077
3078void TWPartition::Recreate_Media_Folder(void) {
3079 string Command;
Ethan Yonker66a19492015-12-10 10:19:45 -06003080 string Media_Path = Mount_Point + "/media";
Dees_Troy38bd7602012-09-14 13:33:53 -04003081
Ethan Yonkerbd7492d2016-12-07 13:55:01 -06003082 if (Is_FBE) {
3083 LOGINFO("Not recreating media folder on FBE\n");
3084 return;
3085 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003086 if (!Mount(true)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003087 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Media_Path));
3088 } else if (!TWFunc::Path_Exists(Media_Path)) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003089 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker66a19492015-12-10 10:19:45 -06003090 LOGINFO("Recreating %s folder.\n", Media_Path.c_str());
3091 mkdir(Media_Path.c_str(), 0770);
xiaolu9416f4f2015-06-04 08:22:23 +08003092 string Internal_path = DataManager::GetStrValue("tw_internal_path");
3093 if (!Internal_path.empty()) {
3094 LOGINFO("Recreating %s folder.\n", Internal_path.c_str());
3095 mkdir(Internal_path.c_str(), 0770);
3096 }
3097#ifdef TW_INTERNAL_STORAGE_PATH
3098 mkdir(EXPAND(TW_INTERNAL_STORAGE_PATH), 0770);
3099#endif
Matt Mower87413642017-01-17 21:14:46 -06003100
thata3d31fb2014-12-21 22:27:40 +01003101 // Afterwards, we will try to set the
3102 // default metadata that we were hopefully able to get during
3103 // early boot.
Ethan Yonker66a19492015-12-10 10:19:45 -06003104 tw_set_default_metadata(Media_Path.c_str());
xiaolu9416f4f2015-06-04 08:22:23 +08003105 if (!Internal_path.empty())
3106 tw_set_default_metadata(Internal_path.c_str());
Matt Mower87413642017-01-17 21:14:46 -06003107
Ethan Yonker5eac2222014-06-11 12:22:55 -05003108 // Toggle mount to ensure that "internal sdcard" gets mounted
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003109 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker5eac2222014-06-11 12:22:55 -05003110 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Dees_Troy38bd7602012-09-14 13:33:53 -04003111 }
Dees_Troy43d8b002012-09-17 16:00:01 -04003112}
Dees_Troye58d5262012-09-21 12:27:57 -04003113
3114void TWPartition::Recreate_AndSec_Folder(void) {
Dees_Troye58d5262012-09-21 12:27:57 -04003115 if (!Has_Android_Secure)
3116 return;
Dees_Troy2673cec2013-04-02 20:22:16 +00003117 LOGINFO("Creating %s: %s\n", Backup_Display_Name.c_str(), Symlink_Path.c_str());
Dees_Troye58d5262012-09-21 12:27:57 -04003118 if (!Mount(true)) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003119 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Backup_Name));
Dees_Troye58d5262012-09-21 12:27:57 -04003120 } else if (!TWFunc::Path_Exists(Symlink_Path)) {
Dees_Troy2673cec2013-04-02 20:22:16 +00003121 LOGINFO("Recreating %s folder.\n", Backup_Name.c_str());
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003122 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05003123 mkdir(Symlink_Path.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003124 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04003125 }
3126}
bigbiff7cb4c332014-11-26 20:36:07 -05003127
3128uint64_t TWPartition::Get_Max_FileSize() {
3129 uint64_t maxFileSize = 0;
3130 const uint64_t constGB = (uint64_t) 1024 * 1024 * 1024;
3131 const uint64_t constTB = (uint64_t) constGB * 1024;
3132 const uint64_t constPB = (uint64_t) constTB * 1024;
bigbiff0c532032014-12-21 13:41:26 -05003133 if (Current_File_System == "ext4")
3134 maxFileSize = 16 * constTB; //16 TB
3135 else if (Current_File_System == "vfat")
3136 maxFileSize = 4 * constGB; //4 GB
Captain Throwback47bf7202020-10-06 17:39:39 -04003137 else if (Current_File_System == "ntfs" || Current_File_System == "tntfs")
bigbiff0c532032014-12-21 13:41:26 -05003138 maxFileSize = 256 * constTB; //256 TB
3139 else if (Current_File_System == "exfat")
3140 maxFileSize = 16 * constPB; //16 PB
3141 else if (Current_File_System == "ext3")
3142 maxFileSize = 2 * constTB; //2 TB
3143 else if (Current_File_System == "f2fs")
3144 maxFileSize = 3.94 * constTB; //3.94 TB
bigbiff7cb4c332014-11-26 20:36:07 -05003145 else
3146 maxFileSize = 100000000L;
3147 return maxFileSize - 1;
3148}
3149
bigbiffce8f83c2015-12-12 18:30:21 -05003150bool TWPartition::Flash_Image(PartitionSettings *part_settings) {
3151 string Restore_File_System, full_filename;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003152
Ethan Yonkere080c1f2016-09-19 13:50:25 -05003153 full_filename = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003154
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003155 LOGINFO("Image filename is: %s\n", Backup_FileName.c_str());
bigbiffce8f83c2015-12-12 18:30:21 -05003156
3157 if (Backup_Method == BM_FILES) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003158 LOGERR("Cannot flash images to file systems\n");
3159 return false;
3160 } else if (!Can_Flash_Img) {
3161 LOGERR("Cannot flash images to partitions %s\n", Display_Name.c_str());
3162 return false;
3163 } else {
3164 if (!Find_Partition_Size()) {
3165 LOGERR("Unable to find partition size for '%s'\n", Mount_Point.c_str());
3166 return false;
3167 }
bigbiffce8f83c2015-12-12 18:30:21 -05003168 unsigned long long image_size = TWFunc::Get_File_Size(full_filename);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003169 if (image_size > Size) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003170 LOGINFO("Size (%llu bytes) of image '%s' is larger than target device '%s' (%llu bytes)\n",
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003171 image_size, Backup_FileName.c_str(), Actual_Block_Device.c_str(), Size);
Ethan Yonker74db1572015-10-28 12:44:49 -05003172 gui_err("img_size_err=Size of image is larger than target device");
Ethan Yonker96af84a2015-01-05 14:58:36 -06003173 return false;
3174 }
bigbiffce8f83c2015-12-12 18:30:21 -05003175 if (Backup_Method == BM_DD) {
3176 if (!part_settings->adbbackup) {
3177 if (Is_Sparse_Image(full_filename)) {
3178 return Flash_Sparse_Image(full_filename);
3179 }
Ethan Yonker472f5062016-02-25 13:47:30 -06003180 }
bigbiffce8f83c2015-12-12 18:30:21 -05003181 return Raw_Read_Write(part_settings);
3182 } else if (Backup_Method == BM_FLASH_UTILS) {
3183 return Flash_Image_FI(full_filename, NULL);
Ethan Yonker472f5062016-02-25 13:47:30 -06003184 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003185 }
3186
3187 LOGERR("Unknown flash method for '%s'\n", Mount_Point.c_str());
3188 return false;
3189}
3190
Ethan Yonker472f5062016-02-25 13:47:30 -06003191bool TWPartition::Is_Sparse_Image(const string& Filename) {
HashBanged974bb2016-01-30 14:20:09 -05003192 uint32_t magic = 0;
3193 int fd = open(Filename.c_str(), O_RDONLY);
3194 if (fd < 0) {
3195 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3196 return false;
3197 }
bigbiffce8f83c2015-12-12 18:30:21 -05003198
HashBanged974bb2016-01-30 14:20:09 -05003199 if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) {
3200 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3201 close(fd);
3202 return false;
3203 }
3204 close(fd);
Ethan Yonker472f5062016-02-25 13:47:30 -06003205 if (magic == SPARSE_HEADER_MAGIC)
3206 return true;
3207 return false;
3208}
3209
3210bool TWPartition::Flash_Sparse_Image(const string& Filename) {
3211 string Command;
3212
3213 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
3214
3215 Command = "simg2img '" + Filename + "' '" + Actual_Block_Device + "'";
Ethan Yonker96af84a2015-01-05 14:58:36 -06003216 LOGINFO("Flash command: '%s'\n", Command.c_str());
3217 TWFunc::Exec_Cmd(Command);
3218 return true;
3219}
3220
Ethan Yonker472f5062016-02-25 13:47:30 -06003221bool TWPartition::Flash_Image_FI(const string& Filename, ProgressTracking *progress) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003222 string Command;
Ethan Yonker472f5062016-02-25 13:47:30 -06003223 unsigned long long file_size;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003224
Ethan Yonker74db1572015-10-28 12:44:49 -05003225 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
Ethan Yonker472f5062016-02-25 13:47:30 -06003226 if (progress) {
3227 file_size = (unsigned long long)(TWFunc::Get_File_Size(Filename));
3228 progress->SetPartitionSize(file_size);
3229 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003230 // Sometimes flash image doesn't like to flash due to the first 2KB matching, so we erase first to ensure that it flashes
3231 Command = "erase_image " + MTD_Name;
3232 LOGINFO("Erase command: '%s'\n", Command.c_str());
3233 TWFunc::Exec_Cmd(Command);
3234 Command = "flash_image " + MTD_Name + " '" + Filename + "'";
3235 LOGINFO("Flash command: '%s'\n", Command.c_str());
3236 TWFunc::Exec_Cmd(Command);
Ethan Yonker472f5062016-02-25 13:47:30 -06003237 if (progress)
3238 progress->UpdateSize(file_size);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003239 return true;
3240}
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003241
3242void TWPartition::Change_Mount_Read_Only(bool new_value) {
3243 Mount_Read_Only = new_value;
3244}
3245
bigbiffce8f83c2015-12-12 18:30:21 -05003246bool TWPartition::Is_Read_Only() {
3247 return Mount_Read_Only;
3248}
3249
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003250int TWPartition::Check_Lifetime_Writes() {
3251 bool original_read_only = Mount_Read_Only;
3252 int ret = 1;
3253
3254 Mount_Read_Only = true;
3255 if (Mount(false)) {
3256 Find_Actual_Block_Device();
Ethan Yonker54970bb2019-01-17 16:19:24 -06003257 string temp = Actual_Block_Device;
3258 Find_Real_Block_Device(temp, false);
3259 string block = basename(temp.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003260 string file = "/sys/fs/" + Current_File_System + "/" + block + "/lifetime_write_kbytes";
3261 string result;
3262 if (TWFunc::Path_Exists(file)) {
3263 if (TWFunc::read_file(file, result) != 0) {
3264 LOGINFO("Check_Lifetime_Writes of '%s' failed to read_file\n", file.c_str());
3265 } else {
3266 LOGINFO("Check_Lifetime_Writes result: '%s'\n", result.c_str());
3267 if (result == "0") {
3268 ret = 0;
3269 }
3270 }
3271 } else {
3272 LOGINFO("Check_Lifetime_Writes file does not exist '%s'\n", file.c_str());
3273 }
3274 UnMount(true);
3275 } else {
3276 LOGINFO("Check_Lifetime_Writes failed to mount '%s'\n", Mount_Point.c_str());
3277 }
3278 Mount_Read_Only = original_read_only;
3279 return ret;
3280}
Ethan Yonker66a19492015-12-10 10:19:45 -06003281
3282int TWPartition::Decrypt_Adopted() {
3283#ifdef TW_INCLUDE_CRYPTO
3284 int ret = 1;
3285 Is_Adopted_Storage = false;
3286 string Adopted_Key_File = "";
3287
3288 if (!Removable)
3289 return ret;
3290
3291 int fd = open(Alternate_Block_Device.c_str(), O_RDONLY);
3292 if (fd < 0) {
3293 LOGINFO("failed to open '%s'\n", Alternate_Block_Device.c_str());
3294 return ret;
3295 }
3296 char type_guid[80];
3297 char part_guid[80];
3298
3299 if (gpt_disk_get_partition_info(fd, 2, type_guid, part_guid) == 0) {
3300 LOGINFO("type: '%s'\n", type_guid);
3301 LOGINFO("part: '%s'\n", part_guid);
3302 Adopted_GUID = part_guid;
3303 LOGINFO("Adopted_GUID '%s'\n", Adopted_GUID.c_str());
3304 if (strcmp(type_guid, TWGptAndroidExpand) == 0) {
3305 LOGINFO("android_expand found\n");
3306 Adopted_Key_File = "/data/misc/vold/expand_";
3307 Adopted_Key_File += part_guid;
3308 Adopted_Key_File += ".key";
3309 if (TWFunc::Path_Exists(Adopted_Key_File)) {
3310 Is_Adopted_Storage = true;
3311 /* Until we find a use case for this, I think it is safe
3312 * to disable USB Mass Storage whenever adopted storage
3313 * is present.
3314 */
3315 LOGINFO("Detected adopted storage, disabling USB mass storage mode\n");
3316 DataManager::SetValue("tw_has_usb_storage", 0);
3317 }
3318 }
3319 }
3320
3321 if (Is_Adopted_Storage) {
3322 string Adopted_Block_Device = Alternate_Block_Device + "p2";
3323 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3324 Adopted_Block_Device = Alternate_Block_Device + "2";
3325 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3326 LOGINFO("Adopted block device does not exist\n");
3327 goto exit;
3328 }
3329 }
3330 LOGINFO("key file is '%s', block device '%s'\n", Adopted_Key_File.c_str(), Adopted_Block_Device.c_str());
3331 char crypto_blkdev[MAXPATHLEN];
3332 std::string thekey;
3333 int fdkey = open(Adopted_Key_File.c_str(), O_RDONLY);
3334 if (fdkey < 0) {
3335 LOGINFO("failed to open key file\n");
3336 goto exit;
3337 }
3338 char buf[512];
3339 ssize_t n;
3340 while ((n = read(fdkey, &buf[0], sizeof(buf))) > 0) {
3341 thekey.append(buf, n);
3342 }
3343 close(fdkey);
3344 unsigned char* key = (unsigned char*) thekey.data();
3345 cryptfs_revert_ext_volume(part_guid);
3346
3347 ret = cryptfs_setup_ext_volume(part_guid, Adopted_Block_Device.c_str(), key, thekey.size(), crypto_blkdev);
3348 if (ret == 0) {
3349 LOGINFO("adopted storage new block device: '%s'\n", crypto_blkdev);
3350 Decrypted_Block_Device = crypto_blkdev;
3351 Is_Decrypted = true;
3352 Is_Encrypted = true;
3353 Find_Actual_Block_Device();
Kjell Braden3126a112016-06-19 16:58:15 +00003354 if (!Mount_Storage_Retry(false)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003355 LOGERR("Failed to mount decrypted adopted storage device\n");
3356 Is_Decrypted = false;
3357 Is_Encrypted = false;
3358 cryptfs_revert_ext_volume(part_guid);
3359 ret = 1;
3360 } else {
Ethan Yonkerfcf3f242016-02-16 12:30:26 -06003361 UnMount(false);
3362 Has_Android_Secure = false;
3363 Symlink_Path = "";
3364 Symlink_Mount_Point = "";
3365 Backup_Name = Mount_Point.substr(1);
3366 Backup_Path = Mount_Point;
3367 TWPartition* sdext = PartitionManager.Find_Partition_By_Path("/sd-ext");
3368 if (sdext && sdext->Actual_Block_Device == Adopted_Block_Device) {
3369 LOGINFO("Removing /sd-ext from partition list due to adopted storage\n");
3370 PartitionManager.Remove_Partition_By_Path("/sd-ext");
3371 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003372 Setup_Data_Media();
Ethan Yonker66a19492015-12-10 10:19:45 -06003373 Wipe_Available_in_GUI = true;
3374 Wipe_During_Factory_Reset = true;
3375 Can_Be_Backed_Up = true;
3376 Can_Encrypt_Backup = true;
3377 Use_Userdata_Encryption = true;
3378 Is_Storage = true;
3379 Storage_Name = "Adopted Storage";
3380 Is_SubPartition = true;
3381 SubPartition_Of = "/data";
3382 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
3383 DataManager::SetValue("tw_has_adopted_storage", 1);
3384 }
3385 } else {
3386 LOGERR("Failed to setup adopted storage decryption\n");
3387 }
3388 }
3389exit:
Matt Mower06543e32017-01-06 15:25:26 -06003390 close(fd);
Ethan Yonker66a19492015-12-10 10:19:45 -06003391 return ret;
3392#else
3393 LOGINFO("Decrypt_Adopted: no crypto support\n");
3394 return 1;
3395#endif
3396}
3397
3398void TWPartition::Revert_Adopted() {
3399#ifdef TW_INCLUDE_CRYPTO
3400 if (!Adopted_GUID.empty()) {
3401 PartitionManager.Remove_MTP_Storage(Mount_Point);
3402 UnMount(false);
3403 cryptfs_revert_ext_volume(Adopted_GUID.c_str());
3404 Is_Adopted_Storage = false;
3405 Is_Encrypted = false;
3406 Is_Decrypted = false;
3407 Decrypted_Block_Device = "";
3408 Find_Actual_Block_Device();
3409 Wipe_During_Factory_Reset = false;
3410 Can_Be_Backed_Up = false;
3411 Can_Encrypt_Backup = false;
3412 Use_Userdata_Encryption = false;
3413 Is_SubPartition = false;
3414 SubPartition_Of = "";
3415 Has_Data_Media = false;
3416 Storage_Path = Mount_Point;
3417 if (!Symlink_Mount_Point.empty()) {
3418 TWPartition* Dat = PartitionManager.Find_Partition_By_Path("/data");
3419 if (Dat) {
3420 Dat->UnMount(false);
3421 Dat->Symlink_Mount_Point = Symlink_Mount_Point;
3422 }
3423 Symlink_Mount_Point = "";
3424 }
3425 }
3426#else
3427 LOGINFO("Revert_Adopted: no crypto support\n");
3428#endif
3429}
bigbiff bigbiffb5ecaad2017-03-20 18:53:53 -04003430
3431void TWPartition::Set_Backup_FileName(string fname) {
3432 Backup_FileName = fname;
3433}
3434
3435string TWPartition::Get_Backup_Name() {
3436 return Backup_Name;
3437}
bigbiffee7b7ff2020-03-23 15:08:27 -04003438
3439string TWPartition::Get_Mount_Point() {
3440 return Mount_Point;
3441}
3442
3443void TWPartition::Set_Block_Device(std::string block_device) {
3444 Primary_Block_Device = Actual_Block_Device = block_device;
3445}
3446
3447bool TWPartition::Get_Super_Status() {
3448 return Is_Super;
3449}
3450
3451void TWPartition::Set_Can_Be_Backed_Up(bool val) {
3452 Can_Be_Backed_Up = val;
3453}
3454
3455void TWPartition::Set_Can_Be_Wiped(bool val) {
3456 Can_Be_Wiped = val;
3457 Wipe_Available_in_GUI = val;
bigbiffad58e1b2020-07-06 20:24:34 -04003458}
3459
3460std::string TWPartition::Get_Backup_FileName() {
3461 return Backup_FileName;
3462}
3463
3464std::string TWPartition::Get_Display_Name() {
3465 return Display_Name;
3466}
3467
3468bool TWPartition::Is_SlotSelect() {
3469 return SlotSelect;
Mohd Faraz815e2402020-09-19 19:31:52 +05303470}