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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" ||
Erfan Abdib859e912019-02-05 18:18:46 +02001115 File_System == "squashfs" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001116 File_System == "auto")
1117 return true;
1118 else
1119 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001120}
1121
Dees_Troy5bf43922012-09-07 16:07:55 -04001122bool TWPartition::Is_Image(string File_System) {
Dees_Troy5fcd8f92012-10-16 12:22:05 -04001123 if (File_System == "emmc" || File_System == "mtd" || File_System == "bml")
Dees_Troy5bf43922012-09-07 16:07:55 -04001124 return true;
1125 else
1126 return false;
1127}
1128
Dees_Troy51127312012-09-08 13:08:49 -04001129bool TWPartition::Make_Dir(string Path, bool Display_Error) {
Ethan Yonker93ac7a02016-11-07 22:05:58 -06001130 if (TWFunc::Get_D_Type_From_Stat(Path) != S_IFDIR)
1131 unlink(Path.c_str());
Dees_Troy43d8b002012-09-17 16:00:01 -04001132 if (!TWFunc::Path_Exists(Path)) {
Dees_Troy51127312012-09-08 13:08:49 -04001133 if (mkdir(Path.c_str(), 0777) == -1) {
1134 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001135 gui_msg(Msg(msg::kError, "create_folder_strerr=Can not create '{1}' folder ({2}).")(Path)(strerror(errno)));
Dees_Troy51127312012-09-08 13:08:49 -04001136 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001137 LOGINFO("Can not create '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001138 return false;
1139 } else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001140 LOGINFO("Created '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001141 return true;
1142 }
1143 }
1144 return true;
1145}
1146
Dees_Troy5bf43922012-09-07 16:07:55 -04001147void TWPartition::Setup_File_System(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001148 Can_Be_Mounted = true;
1149 Can_Be_Wiped = true;
1150
Dees_Troy5bf43922012-09-07 16:07:55 -04001151 // Make the mount point folder if it doesn't exist
Dees_Troy51127312012-09-08 13:08:49 -04001152 Make_Dir(Mount_Point, Display_Error);
bigbiffce8f83c2015-12-12 18:30:21 -05001153 Backup_Method = BM_FILES;
Dees_Troy5bf43922012-09-07 16:07:55 -04001154}
1155
Ethan Yonker1b190162016-12-05 15:25:19 -06001156void TWPartition::Setup_Image() {
Dees_Troy5bf43922012-09-07 16:07:55 -04001157 Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
1158 Backup_Name = Display_Name;
Gary Peck82599a82012-11-21 16:23:12 -08001159 if (Current_File_System == "emmc")
bigbiffce8f83c2015-12-12 18:30:21 -05001160 Backup_Method = BM_DD;
Gary Peck82599a82012-11-21 16:23:12 -08001161 else if (Current_File_System == "mtd" || Current_File_System == "bml")
bigbiffce8f83c2015-12-12 18:30:21 -05001162 Backup_Method = BM_FLASH_UTILS;
Dees_Troy5bf43922012-09-07 16:07:55 -04001163 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001164 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 -04001165}
1166
Dees_Troye58d5262012-09-21 12:27:57 -04001167void TWPartition::Setup_AndSec(void) {
Dees_Troya13d74f2013-03-24 08:54:55 -05001168 Backup_Display_Name = "Android Secure";
Dees_Troye58d5262012-09-21 12:27:57 -04001169 Backup_Name = "and-sec";
Dees_Troya13d74f2013-03-24 08:54:55 -05001170 Can_Be_Backed_Up = true;
Dees_Troye58d5262012-09-21 12:27:57 -04001171 Has_Android_Secure = true;
1172 Symlink_Path = Mount_Point + "/.android_secure";
1173 Symlink_Mount_Point = "/and-sec";
1174 Backup_Path = Symlink_Mount_Point;
1175 Make_Dir("/and-sec", true);
1176 Recreate_AndSec_Folder();
Kjell Braden3126a112016-06-19 16:58:15 +00001177 Mount_Storage_Retry(true);
Dees_Troye58d5262012-09-21 12:27:57 -04001178}
1179
that9e0593e2014-10-08 00:01:24 +02001180void TWPartition::Setup_Data_Media() {
Ethan Yonker6277c792014-09-15 14:54:30 -05001181 LOGINFO("Setting up '%s' as data/media emulated storage.\n", Mount_Point.c_str());
Ethan Yonker66a19492015-12-10 10:19:45 -06001182 if (Storage_Name.empty() || Storage_Name == "Data")
1183 Storage_Name = "Internal Storage";
Ethan Yonker6277c792014-09-15 14:54:30 -05001184 Has_Data_Media = true;
1185 Is_Storage = true;
Ethan Yonker66a19492015-12-10 10:19:45 -06001186 Storage_Path = Mount_Point + "/media";
Ethan Yonker6277c792014-09-15 14:54:30 -05001187 Symlink_Path = Storage_Path;
Ethan Yonker66a19492015-12-10 10:19:45 -06001188 if (Mount_Point == "/data") {
1189 Is_Settings_Storage = true;
1190 if (strcmp(EXPAND(TW_EXTERNAL_STORAGE_PATH), "/sdcard") == 0) {
1191 Make_Dir("/emmc", false);
1192 Symlink_Mount_Point = "/emmc";
1193 } else {
1194 Make_Dir("/sdcard", false);
1195 Symlink_Mount_Point = "/sdcard";
1196 }
1197 if (Mount(false) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1198 Storage_Path = Mount_Point + "/media/0";
1199 Symlink_Path = Storage_Path;
1200 DataManager::SetValue(TW_INTERNAL_PATH, Mount_Point + "/media/0");
1201 UnMount(true);
1202 }
1203 DataManager::SetValue("tw_has_internal", 1);
1204 DataManager::SetValue("tw_has_data_media", 1);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06001205 backup_exclusions.add_absolute_dir("/data/data/com.google.android.music/files");
bigbiff25d25b92020-06-19 16:07:38 -04001206 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 +01001207 backup_exclusions.add_absolute_dir("/data/vendor/dumpsys");
bigbiff25d25b92020-06-19 16:07:38 -04001208 backup_exclusions.add_absolute_dir("/data/cache");
Ethan Yonker6355b562017-05-01 09:42:17 -05001209 wipe_exclusions.add_absolute_dir(Mount_Point + "/misc/vold"); // adopted storage keys
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001210 ExcludeAll(Mount_Point + "/system/storage.xml");
Ethan Yonker6277c792014-09-15 14:54:30 -05001211 } else {
nkk713c1e35f2017-03-24 18:28:03 +02001212 int i;
1213 string path;
1214 for (i = 2; i <= 9; i++) {
1215 path = "/sdcard" + TWFunc::to_string(i);
1216 if (!TWFunc::Path_Exists(path)) {
1217 Make_Dir(path, false);
1218 Symlink_Mount_Point = path;
1219 LOGINFO("'%s' data/media emulated storage symlinked to %s.\n", Mount_Point.c_str(), Symlink_Mount_Point.c_str());
1220 break;
1221 }
1222 }
Ethan Yonker66a19492015-12-10 10:19:45 -06001223 if (Mount(true) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1224 Storage_Path = Mount_Point + "/media/0";
1225 Symlink_Path = Storage_Path;
1226 UnMount(true);
1227 }
Ethan Yonker6277c792014-09-15 14:54:30 -05001228 }
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001229 ExcludeAll(Mount_Point + "/media");
Ethan Yonker6277c792014-09-15 14:54:30 -05001230}
1231
Dees_Troy5bf43922012-09-07 16:07:55 -04001232void TWPartition::Find_Real_Block_Device(string& Block, bool Display_Error) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001233 char device[PATH_MAX], realDevice[PATH_MAX];
Dees_Troy5bf43922012-09-07 16:07:55 -04001234
Peter Caid68e6412019-11-02 19:22:38 +08001235 Original_Path = Block;
1236
Dees_Troy5bf43922012-09-07 16:07:55 -04001237 strcpy(device, Block.c_str());
1238 memset(realDevice, 0, sizeof(realDevice));
1239 while (readlink(device, realDevice, sizeof(realDevice)) > 0)
1240 {
1241 strcpy(device, realDevice);
1242 memset(realDevice, 0, sizeof(realDevice));
1243 }
1244
bigbiff998f8392021-08-06 19:19:33 -04001245 Block = device;
1246 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04001247}
1248
Kjell Braden3126a112016-06-19 16:58:15 +00001249bool TWPartition::Mount_Storage_Retry(bool Display_Error) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001250 // On some devices, storage doesn't want to mount right away, retry and sleep
Kjell Braden3126a112016-06-19 16:58:15 +00001251 if (!Mount(Display_Error)) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001252 int retry_count = 5;
1253 while (retry_count > 0 && !Mount(false)) {
1254 usleep(500000);
1255 retry_count--;
1256 }
Kjell Braden3126a112016-06-19 16:58:15 +00001257 return Mount(Display_Error);
Dees_Troy8e337f32012-10-13 22:07:49 -04001258 }
Kjell Braden3126a112016-06-19 16:58:15 +00001259 return true;
Dees_Troy8e337f32012-10-13 22:07:49 -04001260}
1261
Dees_Troy38bd7602012-09-14 13:33:53 -04001262bool TWPartition::Find_MTD_Block_Device(string MTD_Name) {
1263 FILE *fp = NULL;
1264 char line[255];
1265
1266 fp = fopen("/proc/mtd", "rt");
1267 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001268 LOGERR("Device does not support /proc/mtd\n");
Dees_Troy38bd7602012-09-14 13:33:53 -04001269 return false;
1270 }
1271
1272 while (fgets(line, sizeof(line), fp) != NULL)
1273 {
1274 char device[32], label[32];
1275 unsigned long size = 0;
Dees_Troy38bd7602012-09-14 13:33:53 -04001276 int deviceId;
1277
1278 sscanf(line, "%s %lx %*s %*c%s", device, &size, label);
1279
1280 // Skip header and blank lines
1281 if ((strcmp(device, "dev:") == 0) || (strlen(line) < 8))
1282 continue;
1283
1284 // Strip off the trailing " from the label
1285 label[strlen(label)-1] = '\0';
1286
1287 if (strcmp(label, MTD_Name.c_str()) == 0) {
1288 // We found our device
1289 // Strip off the trailing : from the device
1290 device[strlen(device)-1] = '\0';
1291 if (sscanf(device,"mtd%d", &deviceId) == 1) {
1292 sprintf(device, "/dev/block/mtdblock%d", deviceId);
1293 Primary_Block_Device = device;
Dees_Troy76543db2013-06-19 16:24:30 +00001294 fclose(fp);
1295 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04001296 }
1297 }
1298 }
1299 fclose(fp);
1300
1301 return false;
1302}
1303
Dees_Troy51127312012-09-08 13:08:49 -04001304bool TWPartition::Get_Size_Via_statfs(bool Display_Error) {
1305 struct statfs st;
1306 string Local_Path = Mount_Point + "/.";
1307
1308 if (!Mount(Display_Error))
1309 return false;
1310
1311 if (statfs(Local_Path.c_str(), &st) != 0) {
1312 if (!Removable) {
1313 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001314 LOGERR("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001315 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001316 LOGINFO("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001317 }
1318 return false;
1319 }
1320 Size = (st.f_blocks * st.f_bsize);
1321 Used = ((st.f_blocks - st.f_bfree) * st.f_bsize);
1322 Free = (st.f_bfree * st.f_bsize);
1323 Backup_Size = Used;
1324 return true;
1325}
1326
1327bool TWPartition::Get_Size_Via_df(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001328 FILE* fp;
1329 char command[255], line[512];
1330 int include_block = 1;
1331 unsigned int min_len;
1332
1333 if (!Mount(Display_Error))
1334 return false;
1335
Dees_Troy38bd7602012-09-14 13:33:53 -04001336 min_len = Actual_Block_Device.size() + 2;
Dees_Troy51127312012-09-08 13:08:49 -04001337 sprintf(command, "df %s > /tmp/dfoutput.txt", Mount_Point.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02001338 TWFunc::Exec_Cmd(command);
Dees_Troy51127312012-09-08 13:08:49 -04001339 fp = fopen("/tmp/dfoutput.txt", "rt");
1340 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001341 LOGINFO("Unable to open /tmp/dfoutput.txt.\n");
Dees_Troy5bf43922012-09-07 16:07:55 -04001342 return false;
Dees_Troy51127312012-09-08 13:08:49 -04001343 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001344
1345 while (fgets(line, sizeof(line), fp) != NULL)
1346 {
1347 unsigned long blocks, used, available;
1348 char device[64];
1349 char tmpString[64];
1350
1351 if (strncmp(line, "Filesystem", 10) == 0)
1352 continue;
1353 if (strlen(line) < min_len) {
1354 include_block = 0;
1355 continue;
1356 }
1357 if (include_block) {
1358 sscanf(line, "%s %lu %lu %lu", device, &blocks, &used, &available);
1359 } else {
1360 // The device block string is so long that the df information is on the next line
1361 int space_count = 0;
Dees_Troye58d5262012-09-21 12:27:57 -04001362 sprintf(tmpString, "/dev/block/%s", Actual_Block_Device.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001363 while (tmpString[space_count] == 32)
1364 space_count++;
1365 sscanf(line + space_count, "%lu %lu %lu", &blocks, &used, &available);
1366 }
1367
1368 // Adjust block size to byte size
1369 Size = blocks * 1024ULL;
1370 Used = used * 1024ULL;
1371 Free = available * 1024ULL;
1372 Backup_Size = Used;
1373 }
1374 fclose(fp);
1375 return true;
1376}
1377
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001378unsigned long long TWPartition::IOCTL_Get_Block_Size() {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001379 Find_Actual_Block_Device();
Ethan Yonker483e9f42016-01-11 22:21:18 -06001380
1381 return TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001382}
1383
Dees_Troy5bf43922012-09-07 16:07:55 -04001384bool TWPartition::Find_Partition_Size(void) {
1385 FILE* fp;
1386 char line[512];
1387 string tmpdevice;
1388
igoriok87e3d932013-01-31 21:03:53 +02001389 fp = fopen("/proc/dumchar_info", "rt");
1390 if (fp != NULL) {
1391 while (fgets(line, sizeof(line), fp) != NULL)
1392 {
1393 char label[32], device[32];
1394 unsigned long size = 0;
1395
thatd43bf2d2014-09-21 23:13:02 +02001396 sscanf(line, "%s %lx %*x %*u %s", label, &size, device);
igoriok87e3d932013-01-31 21:03:53 +02001397
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05001398 // Skip header, annotation and blank lines
igoriok87e3d932013-01-31 21:03:53 +02001399 if ((strncmp(device, "/dev/", 5) != 0) || (strlen(line) < 8))
1400 continue;
1401
1402 tmpdevice = "/dev/";
1403 tmpdevice += label;
1404 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
1405 Size = size;
1406 fclose(fp);
1407 return true;
1408 }
1409 }
1410 }
1411
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001412 unsigned long long ioctl_size = IOCTL_Get_Block_Size();
1413 if (ioctl_size) {
1414 Size = ioctl_size;
1415 return true;
1416 }
1417
Dees_Troy5bf43922012-09-07 16:07:55 -04001418 // In this case, we'll first get the partitions we care about (with labels)
1419 fp = fopen("/proc/partitions", "rt");
1420 if (fp == NULL)
1421 return false;
1422
1423 while (fgets(line, sizeof(line), fp) != NULL)
1424 {
1425 unsigned long major, minor, blocks;
1426 char device[512];
Dees_Troy5bf43922012-09-07 16:07:55 -04001427
Dees_Troy63c8df72012-09-10 14:02:05 -04001428 if (strlen(line) < 7 || line[0] == 'm') continue;
Dees_Troy5bf43922012-09-07 16:07:55 -04001429 sscanf(line + 1, "%lu %lu %lu %s", &major, &minor, &blocks, device);
1430
1431 tmpdevice = "/dev/block/";
1432 tmpdevice += device;
Dees_Troy38bd7602012-09-14 13:33:53 -04001433 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001434 // Adjust block size to byte size
1435 Size = blocks * 1024ULL;
1436 fclose(fp);
1437 return true;
1438 }
1439 }
1440 fclose(fp);
1441 return false;
1442}
1443
Dees_Troy5bf43922012-09-07 16:07:55 -04001444bool TWPartition::Is_Mounted(void) {
1445 if (!Can_Be_Mounted)
1446 return false;
1447
1448 struct stat st1, st2;
1449 string test_path;
1450
1451 // Check to see if the mount point directory exists
1452 test_path = Mount_Point + "/.";
1453 if (stat(test_path.c_str(), &st1) != 0) return false;
1454
1455 // Check to see if the directory above the mount point exists
1456 test_path = Mount_Point + "/../.";
1457 if (stat(test_path.c_str(), &st2) != 0) return false;
1458
1459 // Compare the device IDs -- if they match then we're (probably) using tmpfs instead of an actual device
1460 int ret = (st1.st_dev != st2.st_dev) ? true : false;
Dees_Troy5bf43922012-09-07 16:07:55 -04001461 return ret;
1462}
1463
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001464bool TWPartition::Is_File_System_Writable(void) {
1465 if (!Is_File_System(Current_File_System) || !Is_Mounted())
1466 return false;
1467
1468 string test_path = Mount_Point + "/.";
1469 return (access(test_path.c_str(), W_OK) == 0);
1470}
1471
Dees_Troy5bf43922012-09-07 16:07:55 -04001472bool TWPartition::Mount(bool Display_Error) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001473 int exfat_mounted = 0;
Martin Dünkelmann6d843782018-12-27 23:40:28 +01001474 unsigned int flags = Mount_Flags;
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001475
Dees_Troy5bf43922012-09-07 16:07:55 -04001476 if (Is_Mounted()) {
1477 return true;
1478 } else if (!Can_Be_Mounted) {
1479 return false;
1480 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001481
1482 Find_Actual_Block_Device();
1483
1484 // Check the current file system before mounting
1485 Check_FS_Type();
bigbiffad58e1b2020-07-06 20:24:34 -04001486 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/exfat-fuse")) {
1487 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 +00001488 LOGINFO("cmd: %s\n", cmd.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001489 string result;
bigbiffad58e1b2020-07-06 20:24:34 -04001490 if (TWFunc::Exec_Cmd(cmd, result, false) != 0) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001491 LOGINFO("exfat-fuse failed to mount with result '%s', trying vfat\n", result.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001492 Current_File_System = "vfat";
1493 } else {
1494#ifdef TW_NO_EXFAT_FUSE
1495 UnMount(false);
1496 // We'll let the kernel handle it but using exfat-fuse to detect if the file system is actually exfat
1497 // Some kernels let us mount vfat as exfat which doesn't work out too well
1498#else
1499 exfat_mounted = 1;
1500#endif
1501 }
1502 }
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001503
Captain Throwback47bf7202020-10-06 17:39:39 -04001504 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 -05001505 string cmd;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001506 string Ntfsmount_Binary = "";
1507
bigbiffad58e1b2020-07-06 20:24:34 -04001508 if (TWFunc::Path_Exists("/system/bin/ntfs-3g"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001509 Ntfsmount_Binary = "ntfs-3g";
bigbiffad58e1b2020-07-06 20:24:34 -04001510 else if (TWFunc::Path_Exists("/system/bin/mount.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001511 Ntfsmount_Binary = "mount.ntfs";
1512
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001513 if (Mount_Read_Only)
bigbiffad58e1b2020-07-06 20:24:34 -04001514 cmd = "/system/bin/" + Ntfsmount_Binary + " -o ro " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001515 else
bigbiffad58e1b2020-07-06 20:24:34 -04001516 cmd = "/system/bin/" + Ntfsmount_Binary + " " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001517 LOGINFO("cmd: '%s'\n", cmd.c_str());
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001518
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001519 if (TWFunc::Exec_Cmd(cmd) == 0) {
1520 return true;
1521 } else {
1522 LOGINFO("ntfs-3g failed to mount, trying regular mount method.\n");
1523 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001524 } else {
1525 if (Current_File_System == "ntfs" && TWFunc::Path_Exists("/sys/module/tntfs"))
1526 Current_File_System = "tntfs";
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001527 }
1528
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001529 if (Mount_Read_Only)
1530 flags |= MS_RDONLY;
1531
Dees_Troy22042032012-12-18 21:23:08 +00001532 if (Fstab_File_System == "yaffs2") {
1533 // mount an MTD partition as a YAFFS2 filesystem.
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001534 flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
1535 if (Mount_Read_Only)
1536 flags |= MS_RDONLY;
Dees_Troy76543db2013-06-19 16:24:30 +00001537 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags, NULL) < 0) {
1538 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags | MS_RDONLY, NULL) < 0) {
1539 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001540 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001541 else
1542 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1543 return false;
1544 } else {
1545 LOGINFO("Mounted '%s' (MTD) as RO\n", Mount_Point.c_str());
1546 return true;
1547 }
1548 } else {
1549 struct stat st;
1550 string test_path = Mount_Point;
1551 if (stat(test_path.c_str(), &st) < 0) {
1552 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001553 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001554 else
1555 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1556 return false;
1557 }
1558 mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
1559 if (new_mode != st.st_mode) {
1560 LOGINFO("Fixing execute permissions for %s\n", Mount_Point.c_str());
1561 if (chmod(Mount_Point.c_str(), new_mode) < 0) {
1562 if (Display_Error)
1563 LOGERR("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1564 else
1565 LOGINFO("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1566 return false;
1567 }
1568 }
Dees_Troy22042032012-12-18 21:23:08 +00001569 return true;
Dees_Troy76543db2013-06-19 16:24:30 +00001570 }
thatc7572eb2015-03-31 18:55:30 +02001571 }
1572
1573 string mount_fs = Current_File_System;
1574 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sys/module/texfat"))
1575 mount_fs = "texfat";
1576
1577 if (!exfat_mounted &&
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001578 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, Mount_Options.c_str()) != 0 &&
1579 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, NULL) != 0) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001580#ifdef TW_NO_EXFAT_FUSE
1581 if (Current_File_System == "exfat") {
Dees_Troy2673cec2013-04-02 20:22:16 +00001582 LOGINFO("Mounting exfat failed, trying vfat...\n");
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001583 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), "vfat", 0, NULL) != 0) {
Dees_Troy85f44ed2013-01-09 18:42:36 +00001584 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001585 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy85f44ed2013-01-09 18:42:36 +00001586 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001587 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001588 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 +00001589 return false;
Dees_Troy85f44ed2013-01-09 18:42:36 +00001590 }
Dees_Troyb05ddee2013-01-28 20:24:50 +00001591 } else {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001592#endif
bigbiff bigbiff26774a02014-03-29 18:22:00 -04001593 if (!Removable && Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001594 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001595 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001596 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
1597 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 +00001598 return false;
1599#ifdef TW_NO_EXFAT_FUSE
Dees_Troy85f44ed2013-01-09 18:42:36 +00001600 }
1601#endif
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001602 }
Ethan Yonker253368a2014-11-25 15:00:52 -06001603
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001604 if (Removable)
1605 Update_Size(Display_Error);
1606
bigbiffbe4f46c2021-04-24 11:48:54 -04001607 if (!Symlink_Mount_Point.empty()) {
1608 if (!Bind_Mount(false))
1609 return false;
1610 }
1611 return true;
1612}
1613
1614bool TWPartition::Bind_Mount(bool Display_Error) {
1615 if (TWFunc::Path_Exists(Symlink_Path)) {
1616 if (mount(Symlink_Path.c_str(), Symlink_Mount_Point.c_str(), "", MS_BIND, NULL) < 0) {
1617 return false;
1618 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001619 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001620 return true;
1621}
1622
1623bool TWPartition::UnMount(bool Display_Error) {
1624 if (Is_Mounted()) {
1625 int never_unmount_system;
1626
1627 DataManager::GetValue(TW_DONT_UNMOUNT_SYSTEM, never_unmount_system);
Captain Throwback9d6feb52018-07-27 10:05:24 -04001628 if (never_unmount_system == 1 && Mount_Point == PartitionManager.Get_Android_Root_Path())
Dees_Troy5bf43922012-09-07 16:07:55 -04001629 return true; // Never unmount system if you're not supposed to unmount it
1630
Matt Mowera8e6d832017-02-14 20:20:59 -06001631 if (Is_Storage && MTP_Storage_ID > 0)
Ethan Yonker726a0202014-12-16 20:01:38 -06001632 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001633
Dees_Troy38bd7602012-09-14 13:33:53 -04001634 if (!Symlink_Mount_Point.empty())
1635 umount(Symlink_Mount_Point.c_str());
1636
Dees_Troyb05ddee2013-01-28 20:24:50 +00001637 umount(Mount_Point.c_str());
1638 if (Is_Mounted()) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001639 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001640 gui_msg(Msg(msg::kError, "fail_unmount=Failed to unmount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy5bf43922012-09-07 16:07:55 -04001641 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001642 LOGINFO("Unable to unmount '%s'\n", Mount_Point.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001643 return false;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001644 } else {
Dees_Troy5bf43922012-09-07 16:07:55 -04001645 return true;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001646 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001647 } else {
1648 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04001649 }
1650}
1651
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001652bool TWPartition::ReMount(bool Display_Error) {
1653 if (UnMount(Display_Error))
1654 return Mount(Display_Error);
1655 return false;
1656}
1657
1658bool TWPartition::ReMount_RW(bool Display_Error) {
1659 // No need to remount if already mounted rw
1660 if (Is_File_System_Writable())
1661 return true;
1662
1663 bool ro = Mount_Read_Only;
1664 int flags = Mount_Flags;
1665
1666 Mount_Read_Only = false;
1667 Mount_Flags &= ~MS_RDONLY;
1668
1669 bool ret = ReMount(Display_Error);
1670
1671 Mount_Read_Only = ro;
1672 Mount_Flags = flags;
1673
1674 return ret;
1675}
1676
Gary Peck43acadf2012-11-21 21:19:01 -08001677bool TWPartition::Wipe(string New_File_System) {
Ethan Yonker726a0202014-12-16 20:01:38 -06001678 bool wiped = false, update_crypt = false, recreate_media = true;
Dees_Troy16c2b312013-01-15 16:51:18 +00001679 int check;
Dees_Troy16c2b312013-01-15 16:51:18 +00001680
Dees_Troy38bd7602012-09-14 13:33:53 -04001681 if (!Can_Be_Wiped) {
Matt Mower3c366972015-12-25 19:28:31 -06001682 gui_msg(Msg(msg::kError, "cannot_wipe=Partition {1} cannot be wiped.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04001683 return false;
1684 }
1685
Dees_Troyc51f1f92012-09-20 15:32:13 -04001686 if (Mount_Point == "/cache")
Dees_Troy2673cec2013-04-02 20:22:16 +00001687 Log_Offset = 0;
Dees_Troyc51f1f92012-09-20 15:32:13 -04001688
bigbiff4a60bee2021-01-23 14:08:03 -05001689 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1690 if (tw_get_default_metadata(PartitionManager.Get_Android_Root_Path().c_str()) != 0) {
1691 gui_msg(Msg(msg::kWarning, "restore_system_context=Unable to get default context for {1} -- Android may not boot.")(PartitionManager.Get_Android_Root_Path()));
1692 }
1693 }
1694
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001695 if (Has_Data_Media && Current_File_System == New_File_System) {
Dees_Troy16c2b312013-01-15 16:51:18 +00001696 wiped = Wipe_Data_Without_Wiping_Media();
bigbiff25d25b92020-06-19 16:07:38 -04001697 if (Mount_Point == "/data" && TWFunc::get_log_dir() == DATA_LOGS_DIR) {
1698 bool created = PartitionManager.Recreate_Logs_Dir();
1699 if (!created)
1700 LOGERR("Unable to create log directory for TWRP\n");
bigbiff7ba75002020-04-11 20:47:09 -04001701 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001702 recreate_media = false;
Dees_Troy16c2b312013-01-15 16:51:18 +00001703 } else {
Dees_Troy16c2b312013-01-15 16:51:18 +00001704 DataManager::GetValue(TW_RM_RF_VAR, check);
Hashcodedabfd492013-08-29 22:45:30 -07001705 if (check || Use_Rm_Rf)
Dees_Troy16c2b312013-01-15 16:51:18 +00001706 wiped = Wipe_RMRF();
1707 else if (New_File_System == "ext4")
1708 wiped = Wipe_EXT4();
1709 else if (New_File_System == "ext2" || New_File_System == "ext3")
dianlujitao4879b372018-12-03 18:45:47 +08001710 wiped = Wipe_EXTFS(New_File_System);
Dees_Troy16c2b312013-01-15 16:51:18 +00001711 else if (New_File_System == "exfat")
1712 wiped = Wipe_EXFAT();
Captain Throwback47bf7202020-10-06 17:39:39 -04001713 else if (New_File_System == "ntfs" || Current_File_System == "tntfs")
1714 wiped = Wipe_NTFS();
Dees_Troy16c2b312013-01-15 16:51:18 +00001715 else if (New_File_System == "yaffs2")
1716 wiped = Wipe_MTD();
Dees_Troye5017042013-08-29 16:38:55 +00001717 else if (New_File_System == "f2fs")
1718 wiped = Wipe_F2FS();
Captain Throwback47bf7202020-10-06 17:39:39 -04001719 else if (New_File_System == "vfat")
1720 wiped = Wipe_FAT();
Dees_Troy16c2b312013-01-15 16:51:18 +00001721 else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001722 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 +00001723 return false;
1724 }
1725 update_crypt = wiped;
bigbiff7ba75002020-04-11 20:47:09 -04001726 update_crypt = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08001727 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001728
Gary Pecke8bc5d72012-12-21 06:45:25 -08001729 if (wiped) {
Mohd Faraze1d72622020-06-15 00:28:32 +05301730 if (Mount_Point == "/cache" && TWFunc::get_log_dir() != DATA_LOGS_DIR)
1731 DataManager::Output_Version();
1732
bigbiff4a60bee2021-01-23 14:08:03 -05001733 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
1734 tw_set_default_metadata(PartitionManager.Get_Android_Root_Path().c_str());
1735 }
Dees_Troy16c2b312013-01-15 16:51:18 +00001736 if (update_crypt) {
1737 Setup_File_System(false);
1738 if (Is_Encrypted && !Is_Decrypted) {
1739 // just wiped an encrypted partition back to its unencrypted state
1740 Is_Encrypted = false;
1741 Is_Decrypted = false;
1742 Decrypted_Block_Device = "";
1743 if (Mount_Point == "/data") {
1744 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
1745 DataManager::SetValue(TW_IS_DECRYPTED, 0);
1746 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08001747 }
1748 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001749
Captain Throwback63573b52021-10-02 20:47:33 -04001750 if (Is_Storage && Mount(false) && !Is_FBE)
bigbiffbe4f46c2021-04-24 11:48:54 -04001751 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Gary Pecke8bc5d72012-12-21 06:45:25 -08001752 }
Matt Mower209c9632016-01-20 12:08:35 -06001753
Gary Pecke8bc5d72012-12-21 06:45:25 -08001754 return wiped;
Dees_Troy51a0e822012-09-05 15:24:24 -04001755}
1756
Gary Peck43acadf2012-11-21 21:19:01 -08001757bool TWPartition::Wipe() {
Gary Peck82599a82012-11-21 16:23:12 -08001758 if (Is_File_System(Current_File_System))
1759 return Wipe(Current_File_System);
1760 else
1761 return Wipe(Fstab_File_System);
Gary Peck43acadf2012-11-21 21:19:01 -08001762}
1763
Dees_Troye58d5262012-09-21 12:27:57 -04001764bool TWPartition::Wipe_AndSec(void) {
1765 if (!Has_Android_Secure)
1766 return false;
1767
Dees_Troye58d5262012-09-21 12:27:57 -04001768 if (!Mount(true))
1769 return false;
1770
Ethan Yonker74db1572015-10-28 12:44:49 -05001771 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05001772 TWFunc::removeDir(Mount_Point + "/.android_secure/", true);
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02001773 return true;
Dees_Troye58d5262012-09-21 12:27:57 -04001774}
1775
bigbiffaed1bdf2021-08-03 18:21:39 -04001776bool TWPartition::Wipe_Data_Cache(void) {
1777 if (!Mount(true))
1778 return false;
1779 gui_msg(Msg("wiping=Wiping {1}")(Mount_Point + "/cache/"));
1780 TWFunc::removeDir(Mount_Point + "/cache/", true);
1781 return true;
1782}
1783
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001784bool TWPartition::Can_Repair() {
Ethan Yonkera2719152015-05-28 09:44:41 -05001785 if (Mount_Read_Only)
1786 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001787 if (Current_File_System == "vfat" && TWFunc::Path_Exists("/system/bin/fsck.fat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001788 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001789 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 -05001790 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001791 else if (Current_File_System == "exfat" && TWFunc::Path_Exists("/system/bin/fsck.exfat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001792 return true;
bigbiffad58e1b2020-07-06 20:24:34 -04001793 else if (Current_File_System == "f2fs" && TWFunc::Path_Exists("/system/bin/fsck.f2fs"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001794 return true;
Captain Throwback47bf7202020-10-06 17:39:39 -04001795 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 -05001796 return true;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001797 return false;
1798}
1799
1800bool TWPartition::Repair() {
1801 string command;
1802
1803 if (Current_File_System == "vfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001804 if (!TWFunc::Path_Exists("/system/bin/fsck.fat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001805 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001806 return false;
1807 }
1808 if (!UnMount(true))
1809 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001810 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001811 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001812 command = "/system/bin/fsck.fat -y " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001813 LOGINFO("Repair command: %s\n", command.c_str());
1814 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001815 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001816 return true;
1817 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001818 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001819 return false;
1820 }
1821 }
1822 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
bigbiffad58e1b2020-07-06 20:24:34 -04001823 if (!TWFunc::Path_Exists("/system/bin/e2fsck")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001824 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001825 return false;
1826 }
1827 if (!UnMount(true))
1828 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001829 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001830 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001831 command = "/system/bin/e2fsck -fp " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001832 LOGINFO("Repair command: %s\n", command.c_str());
1833 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001834 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001835 return true;
1836 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001837 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001838 return false;
1839 }
1840 }
1841 if (Current_File_System == "exfat") {
bigbiffad58e1b2020-07-06 20:24:34 -04001842 if (!TWFunc::Path_Exists("/system/bin/fsck.exfat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001843 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001844 return false;
1845 }
1846 if (!UnMount(true))
1847 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001848 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001849 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001850 command = "/system/bin/fsck.exfat " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001851 LOGINFO("Repair command: %s\n", command.c_str());
1852 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001853 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001854 return true;
1855 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001856 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001857 return false;
1858 }
1859 }
1860 if (Current_File_System == "f2fs") {
bigbiffad58e1b2020-07-06 20:24:34 -04001861 if (!TWFunc::Path_Exists("/system/bin/fsck.f2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001862 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001863 return false;
1864 }
1865 if (!UnMount(true))
1866 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001867 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001868 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001869 command = "/system/bin/fsck.f2fs " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001870 LOGINFO("Repair command: %s\n", command.c_str());
1871 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001872 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001873 return true;
1874 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001875 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001876 return false;
1877 }
1878 }
Captain Throwback47bf7202020-10-06 17:39:39 -04001879 if (Current_File_System == "ntfs" || Current_File_System == "tntfs") {
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001880 string Ntfsfix_Binary;
bigbiffad58e1b2020-07-06 20:24:34 -04001881 if (TWFunc::Path_Exists("/system/bin/ntfsfix"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001882 Ntfsfix_Binary = "ntfsfix";
bigbiffad58e1b2020-07-06 20:24:34 -04001883 else if (TWFunc::Path_Exists("/system/bin/fsck.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001884 Ntfsfix_Binary = "fsck.ntfs";
1885 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001886 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("ntfsfix"));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001887 return false;
1888 }
1889 if (!UnMount(true))
1890 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001891 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)(Ntfsfix_Binary));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001892 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001893 command = "/system/bin/" + Ntfsfix_Binary + " " + Actual_Block_Device;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001894 LOGINFO("Repair command: %s\n", command.c_str());
1895 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001896 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001897 return true;
1898 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001899 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001900 return false;
1901 }
1902 }
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001903 return false;
1904}
1905
Ethan Yonkera2719152015-05-28 09:44:41 -05001906bool TWPartition::Can_Resize() {
1907 if (Mount_Read_Only)
1908 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04001909 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 -05001910 return true;
1911 return false;
1912}
1913
1914bool TWPartition::Resize() {
1915 string command;
1916
1917 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
1918 if (!Can_Repair()) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001919 LOGINFO("Cannot resize %s because %s cannot be repaired before resizing.\n", Display_Name.c_str(), Display_Name.c_str());
1920 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001921 return false;
1922 }
bigbiffad58e1b2020-07-06 20:24:34 -04001923 if (!TWFunc::Path_Exists("/system/bin/resize2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001924 LOGINFO("resize2fs does not exist! Cannot resize!\n");
1925 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001926 return false;
1927 }
1928 // Repair will unmount so no need to do it twice
Ethan Yonker74db1572015-10-28 12:44:49 -05001929 gui_msg(Msg("repair_resize=Repairing {1} before resizing.")( Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001930 if (!Repair())
1931 return false;
Ethan Yonker74db1572015-10-28 12:44:49 -05001932 gui_msg(Msg("resizing=Resizing {1} using {2}...")(Display_Name)("resize2fs"));
Ethan Yonkera2719152015-05-28 09:44:41 -05001933 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04001934 command = "/system/bin/resize2fs " + Actual_Block_Device;
Ethan Yonkera2719152015-05-28 09:44:41 -05001935 if (Length != 0) {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001936 unsigned long long Actual_Size = IOCTL_Get_Block_Size();
1937 if (Actual_Size == 0)
1938 return false;
Ethan Yonkera2719152015-05-28 09:44:41 -05001939
Ethan Yonkera2719152015-05-28 09:44:41 -05001940 unsigned long long Block_Count;
1941 if (Length < 0) {
1942 // Reduce overall size by this length
1943 Block_Count = (Actual_Size / 1024LLU) - ((unsigned long long)(Length * -1) / 1024LLU);
1944 } else {
1945 // This is the size, not a size reduction
1946 Block_Count = ((unsigned long long)(Length) / 1024LLU);
1947 }
1948 char temp[256];
1949 sprintf(temp, "%llu", Block_Count);
1950 command += " ";
1951 command += temp;
1952 command += "K";
1953 }
1954 LOGINFO("Resize command: %s\n", command.c_str());
1955 if (TWFunc::Exec_Cmd(command) == 0) {
1956 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001957 gui_msg("done=Done.");
Ethan Yonkera2719152015-05-28 09:44:41 -05001958 return true;
1959 } else {
1960 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001961 gui_msg(Msg(msg::kError, "unable_resize=Unable to resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001962 return false;
1963 }
1964 }
1965 return false;
1966}
1967
bigbiffce8f83c2015-12-12 18:30:21 -05001968bool TWPartition::Backup(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
1969 if (Backup_Method == BM_FILES)
1970 return Backup_Tar(part_settings, tar_fork_pid);
1971 else if (Backup_Method == BM_DD)
1972 return Backup_Image(part_settings);
1973 else if (Backup_Method == BM_FLASH_UTILS)
1974 return Backup_Dump_Image(part_settings);
Dees_Troy2673cec2013-04-02 20:22:16 +00001975 LOGERR("Unknown backup method for '%s'\n", Mount_Point.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04001976 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001977}
1978
bigbiffce8f83c2015-12-12 18:30:21 -05001979bool TWPartition::Restore(PartitionSettings *part_settings) {
Matt Mower3c366972015-12-25 19:28:31 -06001980 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonkere080c1f2016-09-19 13:50:25 -05001981 LOGINFO("Restore filename is: %s/%s\n", part_settings->Backup_Folder.c_str(), Backup_FileName.c_str());
Gary Peck43acadf2012-11-21 21:19:01 -08001982
bigbiffce8f83c2015-12-12 18:30:21 -05001983 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001984
1985 if (Is_File_System(Restore_File_System))
bigbiffce8f83c2015-12-12 18:30:21 -05001986 return Restore_Tar(part_settings);
1987 else if (Is_Image(Restore_File_System))
1988 return Restore_Image(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001989
1990 LOGERR("Unknown restore method for '%s'\n", Mount_Point.c_str());
1991 return false;
1992}
1993
bigbiffce8f83c2015-12-12 18:30:21 -05001994string TWPartition::Get_Restore_File_System(PartitionSettings *part_settings) {
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001995 size_t first_period, second_period;
1996 string Restore_File_System;
1997
Gary Peck43acadf2012-11-21 21:19:01 -08001998 // Parse backup filename to extract the file system before wiping
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05001999 first_period = Backup_FileName.find(".");
Gary Peck43acadf2012-11-21 21:19:01 -08002000 if (first_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002001 LOGERR("Unable to find file system (first period).\n");
thatd43bf2d2014-09-21 23:13:02 +02002002 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08002003 }
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002004 Restore_File_System = Backup_FileName.substr(first_period + 1, Backup_FileName.size() - first_period - 1);
Gary Peck43acadf2012-11-21 21:19:01 -08002005 second_period = Restore_File_System.find(".");
2006 if (second_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002007 LOGERR("Unable to find file system (second period).\n");
thatd43bf2d2014-09-21 23:13:02 +02002008 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08002009 }
2010 Restore_File_System.resize(second_period);
Matt Mowera0cd91d2016-12-30 18:21:42 -06002011 LOGINFO("Restore file system is: '%s'.\n", Restore_File_System.c_str());
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002012 return Restore_File_System;
Dees_Troy51a0e822012-09-05 15:24:24 -04002013}
2014
2015string TWPartition::Backup_Method_By_Name() {
bigbiffce8f83c2015-12-12 18:30:21 -05002016 if (Backup_Method == BM_NONE)
Dees_Troy38bd7602012-09-14 13:33:53 -04002017 return "none";
bigbiffce8f83c2015-12-12 18:30:21 -05002018 else if (Backup_Method == BM_FILES)
Dees_Troy38bd7602012-09-14 13:33:53 -04002019 return "files";
bigbiffce8f83c2015-12-12 18:30:21 -05002020 else if (Backup_Method == BM_DD)
Dees_Troy38bd7602012-09-14 13:33:53 -04002021 return "dd";
bigbiffce8f83c2015-12-12 18:30:21 -05002022 else if (Backup_Method == BM_FLASH_UTILS)
Dees_Troy38bd7602012-09-14 13:33:53 -04002023 return "flash_utils";
2024 else
2025 return "undefined";
2026 return "ERROR!";
Dees_Troy51a0e822012-09-05 15:24:24 -04002027}
2028
2029bool TWPartition::Decrypt(string Password) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002030 LOGINFO("STUB TWPartition::Decrypt, password: '%s'\n", Password.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04002031 // Is this needed?
Dees_Troy51a0e822012-09-05 15:24:24 -04002032 return 1;
2033}
2034
2035bool TWPartition::Wipe_Encryption() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002036 bool Save_Data_Media = Has_Data_Media;
Ethan Yonker93382822018-11-01 15:25:31 -05002037 bool ret = false;
2038 BasePartition* base_partition = make_partition();
2039
2040 if (!base_partition->PreWipeEncryption())
2041 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002042
dianlujitao4879b372018-12-03 18:45:47 +08002043 Find_Actual_Block_Device();
2044 if (!Is_Present) {
2045 LOGINFO("Block device not present, cannot format %s.\n", Display_Name.c_str());
2046 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2047 return false;
2048 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002049
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002050#ifdef TW_INCLUDE_CRYPTO
bigbiff7ba75002020-04-11 20:47:09 -04002051 if (!UnMount(true))
2052 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002053 if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Matt Mower2b18a532015-02-20 16:58:05 -06002054 if (delete_crypto_blk_dev((char*)("userdata")) != 0) {
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002055 LOGERR("Error deleting crypto block device, continuing anyway.\n");
2056 }
2057 }
2058#endif
dianlujitao4879b372018-12-03 18:45:47 +08002059 Has_Data_Media = false;
Ethan Yonker93382822018-11-01 15:25:31 -05002060 Decrypted_Block_Device = "";
Dees_Troy74fb2e92013-04-15 14:35:47 +00002061 Is_Decrypted = false;
2062 Is_Encrypted = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08002063 if (Wipe(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002064 Has_Data_Media = Save_Data_Media;
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06002065 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Ethan Yonker83e82572014-04-04 10:59:28 -05002066#ifndef TW_OEM_BUILD
bigbiff25d25b92020-06-19 16:07:38 -04002067 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 -05002068#endif
bigbiff2d548672021-07-09 20:08:44 -04002069 if (Is_FBE) {
2070 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 -04002071 } else {
2072 if (Has_Data_Media && !Symlink_Mount_Point.empty()) {
2073 if (Mount(false))
2074 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
2075 }
bigbiff2d548672021-07-09 20:08:44 -04002076 }
2077
Ethan Yonker93382822018-11-01 15:25:31 -05002078 ret = true;
2079 if (!Key_Directory.empty())
2080 ret = PartitionManager.Wipe_By_Path(Key_Directory);
2081 if (ret)
2082 ret = base_partition->PostWipeEncryption();
2083 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002084 } else {
2085 Has_Data_Media = Save_Data_Media;
Ethan Yonker74db1572015-10-28 12:44:49 -05002086 gui_err("format_data_err=Unable to format to remove encryption.");
Ethan Yonker726a0202014-12-16 20:01:38 -06002087 if (Has_Data_Media && Mount(false))
2088 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Ethan Yonker93382822018-11-01 15:25:31 -05002089 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04002090 }
Ethan Yonker93382822018-11-01 15:25:31 -05002091exit:
2092 delete base_partition;
2093 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002094}
2095
2096void TWPartition::Check_FS_Type() {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002097 const char* type;
2098 blkid_probe pr;
Dees_Troy5bf43922012-09-07 16:07:55 -04002099
Dees_Troy68cab492012-12-12 19:29:35 +00002100 if (Fstab_File_System == "yaffs2" || Fstab_File_System == "mtd" || Fstab_File_System == "bml" || Ignore_Blkid)
2101 return; // Running blkid on some mtd devices causes a massive crash or needs to be skipped
Dees_Troy5bf43922012-09-07 16:07:55 -04002102
Dees_Troy38bd7602012-09-14 13:33:53 -04002103 Find_Actual_Block_Device();
Dees_Troy8170a922012-09-18 15:40:25 -04002104 if (!Is_Present)
2105 return;
Dees_Troy51127312012-09-08 13:08:49 -04002106
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002107 pr = blkid_new_probe_from_filename(Actual_Block_Device.c_str());
2108 if (blkid_do_fullprobe(pr)) {
2109 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002110 LOGINFO("Can't probe device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002111 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04002112 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002113
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05002114 if (blkid_probe_lookup_value(pr, "TYPE", &type, NULL) < 0) {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002115 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002116 LOGINFO("can't find filesystem on device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002117 return;
2118 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002119
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002120 Current_File_System = type;
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002121 blkid_free_probe(pr);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002122 if (fs_flags.size() > 1) {
2123 std::vector<partition_fs_flags_struct>::iterator iter;
2124 std::vector<partition_fs_flags_struct>::iterator found = fs_flags.begin();
2125
2126 for (iter = fs_flags.begin(); iter != fs_flags.end(); iter++) {
2127 if (iter->File_System == Current_File_System) {
2128 found = iter;
2129 break;
2130 }
2131 }
2132 // If we don't find a match, we default the flags to the first set of flags that we received from the fstab
2133 if (Mount_Flags != found->Mount_Flags || Mount_Options != found->Mount_Options) {
2134 Mount_Flags = found->Mount_Flags;
2135 Mount_Options = found->Mount_Options;
2136 LOGINFO("Mount_Flags: %i, Mount_Options: %s\n", Mount_Flags, Mount_Options.c_str());
2137 }
2138 }
Dees_Troy51a0e822012-09-05 15:24:24 -04002139}
2140
dianlujitao4879b372018-12-03 18:45:47 +08002141bool TWPartition::Wipe_EXTFS(string File_System) {
bigbiff7ba75002020-04-11 20:47:09 -04002142 if (!UnMount(true))
2143 return false;
2144
dianlujitao4879b372018-12-03 18:45:47 +08002145#if PLATFORM_SDK_VERSION < 28
bigbiffad58e1b2020-07-06 20:24:34 -04002146 if (!TWFunc::Path_Exists("/system/bin/mke2fs"))
dianlujitao4879b372018-12-03 18:45:47 +08002147#else
bigbiffad58e1b2020-07-06 20:24:34 -04002148 if (!TWFunc::Path_Exists("/system/bin/mke2fs") || !TWFunc::Path_Exists("/system/bin/e2fsdroid"))
dianlujitao4879b372018-12-03 18:45:47 +08002149#endif
Dees_Troy38bd7602012-09-14 13:33:53 -04002150 return Wipe_RMRF();
2151
dianlujitao4879b372018-12-03 18:45:47 +08002152 int ret;
2153 bool NeedPreserveFooter = true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002154
Ethan Yonker25f20c12014-10-14 09:04:43 -05002155 Find_Actual_Block_Device();
2156 if (!Is_Present) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002157 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2158 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Ethan Yonker25f20c12014-10-14 09:04:43 -05002159 return false;
2160 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002161
dianlujitao4879b372018-12-03 18:45:47 +08002162 /**
2163 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2164 * so there's no need to preserve footer.
2165 */
2166 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2167 Crypto_Key_Location != "footer") {
2168 NeedPreserveFooter = false;
2169 }
2170
2171 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2172 if (!dev_sz)
2173 return false;
2174
2175 if (NeedPreserveFooter)
2176 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2177
Dees Troy9a4d7402019-03-21 14:17:28 -04002178 char dout[16];
2179 sprintf(dout, "%llu", dev_sz / 4096);
2180
2181 //string size_str =to_string(dev_sz / 4096);
2182 string size_str = dout;
dianlujitao4879b372018-12-03 18:45:47 +08002183 string Command;
2184
2185 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mke2fs"));
2186
2187 // Execute mke2fs to create empty ext4 filesystem
2188 Command = "mke2fs -t " + File_System + " -b 4096 " + Actual_Block_Device + " " + size_str;
2189 LOGINFO("mke2fs command: %s\n", Command.c_str());
2190 ret = TWFunc::Exec_Cmd(Command);
2191 if (ret) {
2192 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2193 return false;
2194 }
2195
bigbiffad58e1b2020-07-06 20:24:34 -04002196 if (TWFunc::Path_Exists("/system/bin/e2fsdroid")) {
dianlujitao3cf05a52019-05-15 15:33:27 +08002197 const string& File_Contexts_Entry = (Mount_Point == "/system_root" ? "/" : Mount_Point);
2198 char *secontext = NULL;
2199 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, File_Contexts_Entry.c_str(), S_IFDIR) < 0) {
2200 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
2201 } else {
2202 // Execute e2fsdroid to initialize selinux context
bigbiff5b911ca2020-07-18 10:46:09 -04002203 if (Mount_Point == "/persist") {
2204 Mount(true);
2205 TWFunc::removeDir("/persist/lost+found", false);
2206 UnMount(true);
2207 }
dianlujitao3cf05a52019-05-15 15:33:27 +08002208 Command = "e2fsdroid -e -S /file_contexts -a " + File_Contexts_Entry + " " + Actual_Block_Device;
2209 LOGINFO("e2fsdroid command: %s\n", Command.c_str());
2210 ret = TWFunc::Exec_Cmd(Command);
2211 if (ret) {
2212 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2213 return false;
2214 }
dianlujitao4879b372018-12-03 18:45:47 +08002215 }
2216 } else {
2217 LOGINFO("e2fsdroid not present\n");
2218 }
2219
2220 if (NeedPreserveFooter)
2221 Wipe_Crypto_Key();
2222 Current_File_System = File_System;
2223 Recreate_AndSec_Folder();
2224 gui_msg("done=Done.");
2225 return true;
2226}
2227
2228bool TWPartition::Wipe_EXT4() {
2229#ifdef USE_EXT4
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002230 int ret;
dianlujitao4879b372018-12-03 18:45:47 +08002231 bool NeedPreserveFooter = true;
2232
bigbiff7ba75002020-04-11 20:47:09 -04002233 if (!UnMount(true))
2234 return false;
2235
dianlujitao4879b372018-12-03 18:45:47 +08002236 Find_Actual_Block_Device();
2237 if (!Is_Present) {
2238 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2239 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2240 return false;
2241 }
dianlujitao4879b372018-12-03 18:45:47 +08002242
2243 /**
2244 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2245 * so there's no need to preserve footer.
2246 */
2247 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2248 Crypto_Key_Location != "footer") {
2249 NeedPreserveFooter = false;
2250 }
2251
2252 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2253 if (!dev_sz)
2254 return false;
2255
2256 if (NeedPreserveFooter)
2257 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2258
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002259 char *secontext = NULL;
2260
Greg Wallace4b44fef2015-12-29 15:33:24 -05002261 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("make_ext4fs"));
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002262
Dees Troy99c8dbf2014-03-10 16:53:58 +00002263 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, Mount_Point.c_str(), S_IFDIR) < 0) {
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002264 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
dianlujitao4879b372018-12-03 18:45:47 +08002265 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), NULL);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002266 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002267 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), selinux_handle);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002268 }
2269 if (ret != 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002270 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troya95f55c2013-08-17 13:14:43 +00002271 return false;
2272 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002273 if (NeedPreserveFooter)
2274 Wipe_Crypto_Key();
bigbiff bigbiffc49d7062013-10-11 20:28:00 -04002275 string sedir = Mount_Point + "/lost+found";
2276 PartitionManager.Mount_By_Path(sedir.c_str(), true);
2277 rmdir(sedir.c_str());
2278 mkdir(sedir.c_str(), S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP);
Dees_Troya95f55c2013-08-17 13:14:43 +00002279 return true;
2280 }
2281#else
dianlujitao4879b372018-12-03 18:45:47 +08002282 return Wipe_EXTFS("ext4");
Dees_Troya95f55c2013-08-17 13:14:43 +00002283#endif
Dees_Troy51a0e822012-09-05 15:24:24 -04002284}
2285
2286bool TWPartition::Wipe_FAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002287 string command;
Dees_Troy38bd7602012-09-14 13:33:53 -04002288
bigbiff7ba75002020-04-11 20:47:09 -04002289 if (!UnMount(true))
2290 return false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002291
bigbiffad58e1b2020-07-06 20:24:34 -04002292 if (TWFunc::Path_Exists("/system/bin/mkfs.fat")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002293 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.fat"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002294 Find_Actual_Block_Device();
Matt Mower18794c82015-11-11 16:22:45 -06002295 command = "mkfs.fat " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002296 if (TWFunc::Exec_Cmd(command) == 0) {
Gary Pecke8bc5d72012-12-21 06:45:25 -08002297 Current_File_System = "vfat";
Dees_Troye58d5262012-09-21 12:27:57 -04002298 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002299 gui_msg("done=Done.");
Dees_Troy38bd7602012-09-14 13:33:53 -04002300 return true;
2301 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002302 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04002303 return false;
2304 }
2305 return true;
2306 }
2307 else
2308 return Wipe_RMRF();
2309
2310 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002311}
2312
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002313bool TWPartition::Wipe_EXFAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002314 string command;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002315
bigbiff7ba75002020-04-11 20:47:09 -04002316 if (!UnMount(true))
2317 return false;
bigbiffad58e1b2020-07-06 20:24:34 -04002318 if (TWFunc::Path_Exists("/system/bin/mkexfatfs")) {
Greg Wallace4b44fef2015-12-29 15:33:24 -05002319 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkexfatfs"));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002320 Find_Actual_Block_Device();
2321 command = "mkexfatfs " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002322 if (TWFunc::Exec_Cmd(command) == 0) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002323 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002324 gui_msg("done=Done.");
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002325 return true;
2326 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002327 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002328 return false;
2329 }
2330 return true;
2331 }
2332 return false;
2333}
2334
Dees_Troy38bd7602012-09-14 13:33:53 -04002335bool TWPartition::Wipe_MTD() {
2336 if (!UnMount(true))
2337 return false;
2338
Greg Wallace4b44fef2015-12-29 15:33:24 -05002339 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("MTD"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002340
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002341 mtd_scan_partitions();
2342 const MtdPartition* mtd = mtd_find_partition_by_name(MTD_Name.c_str());
2343 if (mtd == NULL) {
2344 LOGERR("No mtd partition named '%s'", MTD_Name.c_str());
2345 return false;
2346 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002347
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002348 MtdWriteContext* ctx = mtd_write_partition(mtd);
2349 if (ctx == NULL) {
2350 LOGERR("Can't write '%s', failed to format.", MTD_Name.c_str());
2351 return false;
2352 }
2353 if (mtd_erase_blocks(ctx, -1) == -1) {
2354 mtd_write_close(ctx);
2355 LOGERR("Failed to format '%s'", MTD_Name.c_str());
2356 return false;
2357 }
2358 if (mtd_write_close(ctx) != 0) {
2359 LOGERR("Failed to close '%s'", MTD_Name.c_str());
2360 return false;
2361 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08002362 Current_File_System = "yaffs2";
Dees_Troye58d5262012-09-21 12:27:57 -04002363 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002364 gui_msg("done=Done.");
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002365 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002366}
2367
2368bool TWPartition::Wipe_RMRF() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002369 if (!Mount(true))
2370 return false;
Ethan Yonker726a0202014-12-16 20:01:38 -06002371 // This is the only wipe that leaves the partition mounted, so we
2372 // must manually remove the partition from MTP if it is a storage
2373 // partition.
2374 if (Is_Storage)
2375 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
Dees_Troy38bd7602012-09-14 13:33:53 -04002376
Ethan Yonker74db1572015-10-28 12:44:49 -05002377 gui_msg(Msg("remove_all=Removing all files under '{1}'")(Mount_Point));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002378 TWFunc::removeDir(Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04002379 Recreate_AndSec_Folder();
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002380 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002381}
2382
Dees_Troye5017042013-08-29 16:38:55 +00002383bool TWPartition::Wipe_F2FS() {
systemaddb475c92021-08-12 20:33:20 +02002384 std::string f2fs_command;
Dees_Troye5017042013-08-29 16:38:55 +00002385
bigbiff7ba75002020-04-11 20:47:09 -04002386 if (!UnMount(true))
2387 return false;
dianlujitao4879b372018-12-03 18:45:47 +08002388
bigbiffad58e1b2020-07-06 20:24:34 -04002389 if (TWFunc::Path_Exists("/system/bin/mkfs.f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002390 f2fs_command = "/system/bin/mkfs.f2fs";
bigbiffad58e1b2020-07-06 20:24:34 -04002391 else if (TWFunc::Path_Exists("/system/bin/make_f2fs"))
systemaddb475c92021-08-12 20:33:20 +02002392 f2fs_command = "/system/bin/make_f2fs -g android";
bigbiff7ba75002020-04-11 20:47:09 -04002393 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002394 LOGINFO("mkfs.f2fs binary not found, using rm -rf to wipe.\n");
Dees_Troye5017042013-08-29 16:38:55 +00002395 return Wipe_RMRF();
2396 }
bigbiff7ba75002020-04-11 20:47:09 -04002397
2398 bool NeedPreserveFooter = true;
systemaddb475c92021-08-12 20:33:20 +02002399 bool needs_casefold = false;
2400 bool needs_projid = false;
bigbiff7ba75002020-04-11 20:47:09 -04002401
2402 Find_Actual_Block_Device();
2403 if (!Is_Present) {
2404 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2405 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2406 return false;
2407 }
systemaddb475c92021-08-12 20:33:20 +02002408
2409 needs_casefold = android::base::GetBoolProperty("external_storage.casefold.enabled", false);
2410 needs_projid = android::base::GetBoolProperty("external_storage.projid.enabled", false);
bigbiff7ba75002020-04-11 20:47:09 -04002411 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2412 if (!dev_sz)
2413 return false;
2414
2415 if (NeedPreserveFooter)
2416 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
bigbiff7ba75002020-04-11 20:47:09 -04002417 char dev_sz_str[48];
2418 sprintf(dev_sz_str, "%llu", (dev_sz / 4096));
systemaddb475c92021-08-12 20:33:20 +02002419 if(needs_projid)
2420 f2fs_command += " -O project_quota,extra_attr";
2421
2422 if(needs_casefold)
2423 f2fs_command += " -O casefold -C utf8";
2424
2425 f2fs_command += " " + Actual_Block_Device + " " + dev_sz_str;
2426
bigbiffad58e1b2020-07-06 20:24:34 -04002427 if (TWFunc::Path_Exists("/system/bin/sload.f2fs")) {
systemaddb475c92021-08-12 20:33:20 +02002428 f2fs_command += " && sload.f2fs -t /data " + Actual_Block_Device;
bigbiff7ba75002020-04-11 20:47:09 -04002429 }
2430
2431 /**
2432 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2433 * so there's no need to preserve footer.
2434 */
2435 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2436 Crypto_Key_Location != "footer") {
2437 NeedPreserveFooter = false;
2438 }
systemaddb475c92021-08-12 20:33:20 +02002439 LOGINFO("mkfs.f2fs command: %s\n", f2fs_command.c_str());
2440 if (TWFunc::Exec_Cmd(f2fs_command) == 0) {
bigbiff7ba75002020-04-11 20:47:09 -04002441 if (NeedPreserveFooter)
2442 Wipe_Crypto_Key();
2443 Recreate_AndSec_Folder();
2444 gui_msg("done=Done.");
2445 return true;
2446 } else {
2447 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2448 return false;
2449 }
2450 return true;
Dees_Troye5017042013-08-29 16:38:55 +00002451}
2452
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002453bool TWPartition::Wipe_NTFS() {
2454 string command;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002455 string Ntfsmake_Binary;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002456
bigbiff7ba75002020-04-11 20:47:09 -04002457 if (!UnMount(true))
2458 return false;
2459
bigbiffad58e1b2020-07-06 20:24:34 -04002460 if (TWFunc::Path_Exists("/system/bin/mkntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002461 Ntfsmake_Binary = "mkntfs";
bigbiffad58e1b2020-07-06 20:24:34 -04002462 else if (TWFunc::Path_Exists("/system/bin/mkfs.ntfs"))
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002463 Ntfsmake_Binary = "mkfs.ntfs";
2464 else
2465 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002466
Greg Wallace4b44fef2015-12-29 15:33:24 -05002467 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)(Ntfsmake_Binary));
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002468 Find_Actual_Block_Device();
bigbiffad58e1b2020-07-06 20:24:34 -04002469 command = "/system/bin/" + Ntfsmake_Binary + " " + Actual_Block_Device;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002470 if (TWFunc::Exec_Cmd(command) == 0) {
2471 Recreate_AndSec_Folder();
2472 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002473 return true;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002474 } else {
2475 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2476 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002477 }
2478 return false;
2479}
2480
Dees_Troy51a0e822012-09-05 15:24:24 -04002481bool TWPartition::Wipe_Data_Without_Wiping_Media() {
Ethan Yonker83e82572014-04-04 10:59:28 -05002482#ifdef TW_OEM_BUILD
2483 // In an OEM Build we want to do a full format
2484 return Wipe_Encryption();
2485#else
Ethan Yonker66a19492015-12-10 10:19:45 -06002486 bool ret = false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002487
Dees_Troy38bd7602012-09-14 13:33:53 -04002488 if (!Mount(true))
2489 return false;
2490
Ethan Yonker74db1572015-10-28 12:44:49 -05002491 gui_msg("wiping_data=Wiping data without wiping /data/media ...");
Ethan Yonker66a19492015-12-10 10:19:45 -06002492 ret = Wipe_Data_Without_Wiping_Media_Func(Mount_Point + "/");
2493 if (ret)
2494 gui_msg("done=Done.");
2495 return ret;
2496#endif // ifdef TW_OEM_BUILD
2497}
2498
2499bool TWPartition::Wipe_Data_Without_Wiping_Media_Func(const string& parent __unused) {
2500 string dir;
Dees_Troy38bd7602012-09-14 13:33:53 -04002501
2502 DIR* d;
Ethan Yonker66a19492015-12-10 10:19:45 -06002503 d = opendir(parent.c_str());
Dees_Troy16b74352012-11-14 22:27:31 +00002504 if (d != NULL) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002505 struct dirent* de;
2506 while ((de = readdir(d)) != NULL) {
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002507 if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002508
Ethan Yonker66a19492015-12-10 10:19:45 -06002509 dir = parent;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002510 dir.append(de->d_name);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002511 if (wipe_exclusions.check_skip_dirs(dir)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002512 LOGINFO("skipped '%s'\n", dir.c_str());
2513 continue;
2514 }
Dees_Troyce675462013-01-09 19:48:21 +00002515 if (de->d_type == DT_DIR) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002516 dir.append("/");
2517 if (!Wipe_Data_Without_Wiping_Media_Func(dir)) {
2518 closedir(d);
2519 return false;
2520 }
2521 rmdir(dir.c_str());
bigbiff bigbiff98f1f902013-01-19 18:46:13 -05002522 } 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 +03002523 if (unlink(dir.c_str()) != 0)
Ethan Yonker79f88bd2016-12-09 14:52:12 -06002524 LOGINFO("Unable to unlink '%s': %s\n", dir.c_str(), strerror(errno));
Dees_Troyce675462013-01-09 19:48:21 +00002525 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002526 }
2527 closedir(d);
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002528
Dees_Troy16b74352012-11-14 22:27:31 +00002529 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04002530 }
Ethan Yonker74db1572015-10-28 12:44:49 -05002531 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy16b74352012-11-14 22:27:31 +00002532 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002533}
2534
dianlujitao4879b372018-12-03 18:45:47 +08002535void TWPartition::Wipe_Crypto_Key() {
2536 Find_Actual_Block_Device();
2537 if (Crypto_Key_Location.empty())
2538 return;
2539 else if (Crypto_Key_Location == "footer") {
2540 int fd = open(Actual_Block_Device.c_str(), O_RDWR);
2541 if (fd < 0) {
2542 gui_print_color("warning", "Unable to open '%s' to wipe crypto key\n", Actual_Block_Device.c_str());
2543 return;
2544 }
2545
2546 unsigned int block_count;
2547 if ((ioctl(fd, BLKGETSIZE, &block_count)) == -1) {
2548 gui_print_color("warning", "Unable to get block size for wiping crypto footer.\n");
2549 } else {
2550 int newlen = Length < 0 ? -Length : CRYPT_FOOTER_OFFSET;
2551 off64_t offset = ((off64_t)block_count * 512) - newlen;
2552 if (lseek64(fd, offset, SEEK_SET) == -1) {
2553 gui_print_color("warning", "Unable to lseek64 for wiping crypto footer.\n");
2554 } else {
2555 void* buffer = malloc(newlen);
2556 if (!buffer) {
2557 gui_print_color("warning", "Failed to malloc for wiping crypto footer.\n");
2558 } else {
2559 memset(buffer, 0, newlen);
2560 int ret = write(fd, buffer, newlen);
2561 if (ret != newlen) {
2562 gui_print_color("warning", "Failed to wipe crypto footer.\n");
2563 } else {
2564 LOGINFO("Successfully wiped crypto footer.\n");
2565 }
2566 free(buffer);
2567 }
2568 }
2569 }
2570 close(fd);
2571 } else {
2572 if (TWFunc::IOCTL_Get_Block_Size(Crypto_Key_Location.c_str()) >= 16384LLU) {
2573 string Command = "dd of='" + Crypto_Key_Location + "' if=/dev/zero bs=16384 count=1";
2574 TWFunc::Exec_Cmd(Command);
2575 } else {
2576 LOGINFO("Crypto key location reports size < 16K so not wiping crypto footer.\n");
2577 }
2578 }
2579}
2580
bigbiffce8f83c2015-12-12 18:30:21 -05002581bool TWPartition::Backup_Tar(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002582 string Full_FileName;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002583 twrpTar tar;
bigbiff bigbiffcdcfee42013-02-27 21:11:26 -05002584
Dees_Troy43d8b002012-09-17 16:00:01 -04002585 if (!Mount(true))
2586 return false;
2587
Ian Macdonalda3b25a32019-06-16 22:39:14 +02002588 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Backup_Display_Name, gui_parse_text("{@backing}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002589 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002590
Ethan Yonker472f5062016-02-25 13:47:30 -06002591 DataManager::GetValue(TW_USE_COMPRESSION_VAR, tar.use_compression);
Matt Mowerbb81e5d2014-03-20 18:05:41 -05002592
Dees_Troy83bd4832013-05-04 12:39:56 +00002593#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
Ethan Yonker472f5062016-02-25 13:47:30 -06002594 if (Can_Encrypt_Backup) {
2595 DataManager::GetValue("tw_encrypt_backup", tar.use_encryption);
2596 if (tar.use_encryption) {
2597 if (Use_Userdata_Encryption)
2598 tar.userdata_encryption = tar.use_encryption;
2599 string Password;
2600 DataManager::GetValue("tw_backup_password", Password);
2601 tar.setpassword(Password);
2602 } else {
2603 tar.use_encryption = 0;
2604 }
Dees_Troy83bd4832013-05-04 12:39:56 +00002605 }
2606#endif
Dees_Troy43d8b002012-09-17 16:00:01 -04002607
Ethan Yonker472f5062016-02-25 13:47:30 -06002608 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002609 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker01f4e032017-02-03 15:30:52 -06002610 if (Has_Data_Media)
2611 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 -04002612 if (Mount_Point == "/data" && DataManager::GetIntValue(TW_IS_FBE)) {
2613 std::vector<users_struct>::iterator iter;
2614 std::vector<users_struct>* userList = PartitionManager.Get_Users_List();
2615 for (iter = userList->begin(); iter != userList->end(); iter++) {
2616 if (!(*iter).isDecrypted && (*iter).userId != "0") {
2617 gui_msg(Msg(msg::kWarning,
2618 "backup_storage_undecrypt_warning=Backup will not include some files from user {1} "
2619 "because the user is not decrypted.")((*iter).userId));
2620 backup_exclusions.add_absolute_dir("/data/system_ce/" + (*iter).userId);
2621 backup_exclusions.add_absolute_dir("/data/misc_ce/" + (*iter).userId);
2622 backup_exclusions.add_absolute_dir("/data/vendor_ce/" + (*iter).userId);
2623 backup_exclusions.add_absolute_dir("/data/media/" + (*iter).userId);
2624 backup_exclusions.add_absolute_dir("/data/user/" + (*iter).userId);
2625 }
2626 }
2627 }
bigbiffce8f83c2015-12-12 18:30:21 -05002628 tar.part_settings = part_settings;
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002629 tar.backup_exclusions = &backup_exclusions;
Dees Troye0a433a2013-12-02 04:10:37 +00002630 tar.setdir(Backup_Path);
2631 tar.setfn(Full_FileName);
2632 tar.setsize(Backup_Size);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002633 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002634 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002635 if (tar.createTarFork(tar_fork_pid) != 0)
Dees Troye0a433a2013-12-02 04:10:37 +00002636 return false;
Dees_Troy43d8b002012-09-17 16:00:01 -04002637 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002638}
2639
bigbiffce8f83c2015-12-12 18:30:21 -05002640bool TWPartition::Backup_Image(PartitionSettings *part_settings) {
2641 string Full_FileName, adb_file_name;
igoriok87e3d932013-01-31 21:03:53 +02002642
Ethan Yonker74db1572015-10-28 12:44:49 -05002643 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2644 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002645
Ethan Yonker472f5062016-02-25 13:47:30 -06002646 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Dees_Troy43d8b002012-09-17 16:00:01 -04002647
bigbiffce8f83c2015-12-12 18:30:21 -05002648 if (part_settings->adbbackup) {
2649 Full_FileName = TW_ADB_BACKUP;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002650 adb_file_name = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002651 }
2652 else
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002653 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002654
2655 part_settings->total_restore_size = Backup_Size;
2656
2657 if (part_settings->adbbackup) {
2658 if (!twadbbu::Write_TWIMG(adb_file_name, Backup_Size))
2659 return false;
2660 }
2661
2662 if (!Raw_Read_Write(part_settings))
Ethan Yonker472f5062016-02-25 13:47:30 -06002663 return false;
2664
bigbiffce8f83c2015-12-12 18:30:21 -05002665 if (part_settings->adbbackup) {
2666 if (!twadbbu::Write_TWEOF())
2667 return false;
Dees_Troy7c2dec82012-09-26 09:49:14 -04002668 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002669 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002670}
2671
bigbiffce8f83c2015-12-12 18:30:21 -05002672bool TWPartition::Raw_Read_Write(PartitionSettings *part_settings) {
2673 unsigned long long RW_Block_Size, Remain = Backup_Size;
2674 int src_fd = -1, dest_fd = -1;
2675 ssize_t bs;
Ethan Yonker472f5062016-02-25 13:47:30 -06002676 bool ret = false;
2677 void* buffer = NULL;
2678 unsigned long long backedup_size = 0;
bigbiffce8f83c2015-12-12 18:30:21 -05002679 string srcfn, destfn;
Ethan Yonker472f5062016-02-25 13:47:30 -06002680
bigbiffce8f83c2015-12-12 18:30:21 -05002681 if (part_settings->PM_Method == PM_BACKUP) {
2682 srcfn = Actual_Block_Device;
2683 if (part_settings->adbbackup)
2684 destfn = TW_ADB_BACKUP;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002685 else {
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002686 destfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002687 }
bigbiffce8f83c2015-12-12 18:30:21 -05002688 }
2689 else {
2690 destfn = Actual_Block_Device;
2691 if (part_settings->adbbackup) {
2692 srcfn = TW_ADB_RESTORE;
2693 } else {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002694 srcfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002695 Remain = TWFunc::Get_File_Size(srcfn);
2696 }
2697 }
Ethan Yonker472f5062016-02-25 13:47:30 -06002698
bigbiffce8f83c2015-12-12 18:30:21 -05002699 src_fd = open(srcfn.c_str(), O_RDONLY | O_LARGEFILE);
Ethan Yonker472f5062016-02-25 13:47:30 -06002700 if (src_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002701 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(srcfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002702 return false;
2703 }
bigbiffce8f83c2015-12-12 18:30:21 -05002704
2705 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 -06002706 if (dest_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002707 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(destfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002708 goto exit;
2709 }
bigbiff bigbiff19fb79c2016-09-05 21:04:51 -04002710
bigbiffce8f83c2015-12-12 18:30:21 -05002711 LOGINFO("Reading '%s', writing '%s'\n", srcfn.c_str(), destfn.c_str());
2712
2713 if (part_settings->adbbackup) {
2714 RW_Block_Size = MAX_ADB_READ;
2715 bs = MAX_ADB_READ;
2716 }
2717 else {
2718 RW_Block_Size = 1048576LLU; // 1MB
2719 bs = (ssize_t)(RW_Block_Size);
2720 }
2721
Ethan Yonker472f5062016-02-25 13:47:30 -06002722 buffer = malloc((size_t)bs);
2723 if (!buffer) {
2724 LOGINFO("Raw_Read_Write failed to malloc\n");
2725 goto exit;
2726 }
bigbiffce8f83c2015-12-12 18:30:21 -05002727
2728 if (part_settings->progress)
2729 part_settings->progress->SetPartitionSize(part_settings->total_restore_size);
2730
Ethan Yonker472f5062016-02-25 13:47:30 -06002731 while (Remain > 0) {
2732 if (Remain < RW_Block_Size)
bigbiffce8f83c2015-12-12 18:30:21 -05002733 bs = (ssize_t)(Remain);
Matt Mowera8a89d12016-12-30 18:10:37 -06002734 if (read(src_fd, buffer, bs) != bs) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002735 LOGINFO("Error reading source fd (%s)\n", strerror(errno));
2736 goto exit;
2737 }
2738 if (write(dest_fd, buffer, bs) != bs) {
2739 LOGINFO("Error writing destination fd (%s)\n", strerror(errno));
2740 goto exit;
2741 }
2742 backedup_size += (unsigned long long)(bs);
Matt Mower029a82d2017-01-08 13:12:38 -06002743 Remain -= (unsigned long long)(bs);
bigbiffce8f83c2015-12-12 18:30:21 -05002744 if (part_settings->progress)
2745 part_settings->progress->UpdateSize(backedup_size);
Ethan Yonker472f5062016-02-25 13:47:30 -06002746 if (PartitionManager.Check_Backup_Cancel() != 0)
2747 goto exit;
2748 }
bigbiffce8f83c2015-12-12 18:30:21 -05002749 if (part_settings->progress)
2750 part_settings->progress->UpdateDisplayDetails(true);
Ethan Yonker472f5062016-02-25 13:47:30 -06002751 fsync(dest_fd);
nailyka083dc62016-11-11 21:41:28 +01002752
2753 if (!part_settings->adbbackup && part_settings->PM_Method == PM_BACKUP) {
2754 tw_set_default_metadata(destfn.c_str());
2755 LOGINFO("Restored default metadata for %s\n", destfn.c_str());
2756 }
2757
Ethan Yonker472f5062016-02-25 13:47:30 -06002758 ret = true;
2759exit:
2760 if (src_fd >= 0)
2761 close(src_fd);
2762 if (dest_fd >= 0)
2763 close(dest_fd);
2764 if (buffer)
2765 free(buffer);
2766 return ret;
2767}
2768
bigbiffce8f83c2015-12-12 18:30:21 -05002769bool TWPartition::Backup_Dump_Image(PartitionSettings *part_settings) {
Vojtech Bocek05534202013-09-11 08:11:56 +02002770 string Full_FileName, Command;
Dees_Troy43d8b002012-09-17 16:00:01 -04002771
Ethan Yonker74db1572015-10-28 12:44:49 -05002772 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2773 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002774
bigbiffce8f83c2015-12-12 18:30:21 -05002775 if (part_settings->progress)
2776 part_settings->progress->SetPartitionSize(Backup_Size);
Dees_Troy43d8b002012-09-17 16:00:01 -04002777
Ethan Yonker472f5062016-02-25 13:47:30 -06002778 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002779 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Dees_Troy43d8b002012-09-17 16:00:01 -04002780
2781 Command = "dump_image " + MTD_Name + " '" + Full_FileName + "'";
bigbiffce8f83c2015-12-12 18:30:21 -05002782
Dees_Troy2673cec2013-04-02 20:22:16 +00002783 LOGINFO("Backup command: '%s'\n", Command.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02002784 TWFunc::Exec_Cmd(Command);
Ethan Yonker4b94cfd2014-12-11 10:00:45 -06002785 tw_set_default_metadata(Full_FileName.c_str());
Dees_Troy7c2dec82012-09-26 09:49:14 -04002786 if (TWFunc::Get_File_Size(Full_FileName) == 0) {
2787 // 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 -06002788 gui_msg(Msg(msg::kError, "backup_size=Backup file size for '{1}' is 0 bytes.")(Full_FileName));
Dees_Troy7c2dec82012-09-26 09:49:14 -04002789 return false;
2790 }
bigbiffce8f83c2015-12-12 18:30:21 -05002791 if (part_settings->progress)
2792 part_settings->progress->UpdateSize(Backup_Size);
2793
Dees_Troy43d8b002012-09-17 16:00:01 -04002794 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002795}
2796
bigbiffce8f83c2015-12-12 18:30:21 -05002797unsigned long long TWPartition::Get_Restore_Size(PartitionSettings *part_settings) {
2798 if (!part_settings->adbbackup) {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002799 InfoManager restore_info(part_settings->Backup_Folder + "/" + Backup_Name + ".info");
bigbiffce8f83c2015-12-12 18:30:21 -05002800 if (restore_info.LoadValues() == 0) {
2801 if (restore_info.GetValue("backup_size", Restore_Size) == 0) {
2802 LOGINFO("Read info file, restore size is %llu\n", Restore_Size);
2803 return Restore_Size;
2804 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002805 }
2806 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002807
Matt Mower029a82d2017-01-08 13:12:38 -06002808 string Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
2809 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002810
2811 if (Is_Image(Restore_File_System)) {
2812 Restore_Size = TWFunc::Get_File_Size(Full_FileName);
2813 return Restore_Size;
2814 }
2815
2816 twrpTar tar;
2817 tar.setdir(Backup_Path);
2818 tar.setfn(Full_FileName);
bigbiffce8f83c2015-12-12 18:30:21 -05002819 tar.backup_name = Full_FileName;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002820#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2821 string Password;
2822 DataManager::GetValue("tw_restore_password", Password);
2823 if (!Password.empty())
2824 tar.setpassword(Password);
2825#endif
2826 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002827 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002828 tar.part_settings = part_settings;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002829 Restore_Size = tar.get_size();
2830 return Restore_Size;
2831}
2832
bigbiffce8f83c2015-12-12 18:30:21 -05002833bool TWPartition::Restore_Tar(PartitionSettings *part_settings) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002834 string Full_FileName;
Dees Troy4159aed2014-02-28 17:24:43 +00002835 bool ret = false;
bigbiffce8f83c2015-12-12 18:30:21 -05002836 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002837
Dees_Troye58d5262012-09-21 12:27:57 -04002838 if (Has_Android_Secure) {
Dees_Troye58d5262012-09-21 12:27:57 -04002839 if (!Wipe_AndSec())
2840 return false;
Gary Peck43acadf2012-11-21 21:19:01 -08002841 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002842 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
Ethan Yonker5eac2222014-06-11 12:22:55 -05002843 if (Has_Data_Media && Mount_Point == "/data" && Restore_File_System != Current_File_System) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002844 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 -05002845 if (!Wipe_Data_Without_Wiping_Media())
2846 return false;
2847 } else {
2848 if (!Wipe(Restore_File_System))
2849 return false;
2850 }
Dees_Troye58d5262012-09-21 12:27:57 -04002851 }
Matt Mower3c366972015-12-25 19:28:31 -06002852 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002853 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002854
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002855 // Remount as read/write as needed so we can restore the backup
2856 if (!ReMount_RW(true))
Dees_Troy43d8b002012-09-17 16:00:01 -04002857 return false;
2858
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002859 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker87af5632014-02-10 11:56:35 -06002860 twrpTar tar;
bigbiffce8f83c2015-12-12 18:30:21 -05002861 tar.part_settings = part_settings;
Ethan Yonker87af5632014-02-10 11:56:35 -06002862 tar.setdir(Backup_Path);
2863 tar.setfn(Full_FileName);
2864 tar.backup_name = Backup_Name;
2865#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2866 string Password;
2867 DataManager::GetValue("tw_restore_password", Password);
2868 if (!Password.empty())
2869 tar.setpassword(Password);
2870#endif
bigbiffce8f83c2015-12-12 18:30:21 -05002871 part_settings->progress->SetPartitionSize(Get_Restore_Size(part_settings));
2872 if (tar.extractTarFork() != 0)
Dees Troy4159aed2014-02-28 17:24:43 +00002873 ret = false;
2874 else
2875 ret = true;
2876#ifdef HAVE_CAPABILITIES
2877 // Restore capabilities to the run-as binary
Captain Throwback9d6feb52018-07-27 10:05:24 -04002878 if (Mount_Point == PartitionManager.Get_Android_Root_Path() && Mount(true) && TWFunc::Path_Exists("/system/bin/run-as")) {
Dees Troy4159aed2014-02-28 17:24:43 +00002879 struct vfs_cap_data cap_data;
2880 uint64_t capabilities = (1 << CAP_SETUID) | (1 << CAP_SETGID);
2881
2882 memset(&cap_data, 0, sizeof(cap_data));
2883 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
2884 cap_data.data[0].permitted = (uint32_t) (capabilities & 0xffffffff);
2885 cap_data.data[0].inheritable = 0;
2886 cap_data.data[1].permitted = (uint32_t) (capabilities >> 32);
2887 cap_data.data[1].inheritable = 0;
2888 if (setxattr("/system/bin/run-as", XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
2889 LOGINFO("Failed to reset capabilities of /system/bin/run-as binary.\n");
2890 } else {
2891 LOGINFO("Reset capabilities of /system/bin/run-as binary successful.\n");
2892 }
2893 }
2894#endif
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002895 if (Mount_Read_Only || Mount_Flags & MS_RDONLY)
2896 // Remount as read only when restoration is complete
2897 ReMount(true);
2898
Dees Troy4159aed2014-02-28 17:24:43 +00002899 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002900}
2901
bigbiffce8f83c2015-12-12 18:30:21 -05002902bool TWPartition::Restore_Image(PartitionSettings *part_settings) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06002903 string Full_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002904 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002905
Matt Mower3c366972015-12-25 19:28:31 -06002906 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002907 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
bigbiffce8f83c2015-12-12 18:30:21 -05002908
2909 if (part_settings->adbbackup)
2910 Full_FileName = TW_ADB_RESTORE;
2911 else
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002912 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Gary Peck15e623d2012-11-21 21:07:58 -08002913
Ethan Yonker96af84a2015-01-05 14:58:36 -06002914 if (Restore_File_System == "emmc") {
bigbiffce8f83c2015-12-12 18:30:21 -05002915 if (!part_settings->adbbackup)
2916 part_settings->total_restore_size = (uint64_t)(TWFunc::Get_File_Size(Full_FileName));
2917 if (!Raw_Read_Write(part_settings))
Ethan Yonker96af84a2015-01-05 14:58:36 -06002918 return false;
2919 } else if (Restore_File_System == "mtd" || Restore_File_System == "bml") {
bigbiffce8f83c2015-12-12 18:30:21 -05002920 if (!Flash_Image_FI(Full_FileName, part_settings->progress))
2921 return false;
2922 }
2923
2924 if (part_settings->adbbackup) {
2925 if (!twadbbu::Write_TWEOF())
Ethan Yonker96af84a2015-01-05 14:58:36 -06002926 return false;
Gary Peck15e623d2012-11-21 21:07:58 -08002927 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002928 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002929}
Dees_Troy5bf43922012-09-07 16:07:55 -04002930
2931bool TWPartition::Update_Size(bool Display_Error) {
Dees_Troy0550cfb2012-10-13 11:56:13 -04002932 bool ret = false, Was_Already_Mounted = false;
Dees_Troy51127312012-09-08 13:08:49 -04002933
Ethan Yonker1b190162016-12-05 15:25:19 -06002934 Find_Actual_Block_Device();
2935
bigbiffee7b7ff2020-03-23 15:08:27 -04002936 if (Actual_Block_Device.empty())
2937 return false;
2938
Ethan Yonker1b190162016-12-05 15:25:19 -06002939 if (!Can_Be_Mounted && !Is_Encrypted) {
2940 if (TWFunc::Path_Exists(Actual_Block_Device) && Find_Partition_Size()) {
2941 Used = Size;
2942 Backup_Size = Size;
2943 return true;
2944 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002945 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002946 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002947
Dees_Troy0550cfb2012-10-13 11:56:13 -04002948 Was_Already_Mounted = Is_Mounted();
bigbiffee7b7ff2020-03-23 15:08:27 -04002949
Dees_Troy38bd7602012-09-14 13:33:53 -04002950 if (Removable || Is_Encrypted) {
2951 if (!Mount(false))
2952 return true;
2953 } else if (!Mount(Display_Error))
Dees_Troy5bf43922012-09-07 16:07:55 -04002954 return false;
Dees_Troy51127312012-09-08 13:08:49 -04002955
2956 ret = Get_Size_Via_statfs(Display_Error);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002957 if (!ret || Size == 0) {
2958 if (!Get_Size_Via_df(Display_Error)) {
2959 if (!Was_Already_Mounted)
2960 UnMount(false);
Dees_Troy51127312012-09-08 13:08:49 -04002961 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002962 }
2963 }
Dees_Troy51127312012-09-08 13:08:49 -04002964
Dees_Troy5bf43922012-09-07 16:07:55 -04002965 if (Has_Data_Media) {
2966 if (Mount(Display_Error)) {
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002967 Used = backup_exclusions.Get_Folder_Size(Mount_Point);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002968 Backup_Size = Used;
2969 int bak = (int)(Used / 1048576LLU);
Dees_Troy51127312012-09-08 13:08:49 -04002970 int fre = (int)(Free / 1048576LLU);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002971 LOGINFO("Data backup size is %iMB, free: %iMB.\n", bak, fre);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002972 } else {
2973 if (!Was_Already_Mounted)
2974 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002975 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002976 }
Dees_Troye58d5262012-09-21 12:27:57 -04002977 } else if (Has_Android_Secure) {
2978 if (Mount(Display_Error))
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002979 Backup_Size = backup_exclusions.Get_Folder_Size(Backup_Path);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002980 else {
2981 if (!Was_Already_Mounted)
2982 UnMount(false);
Dees_Troye58d5262012-09-21 12:27:57 -04002983 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002984 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002985 }
Dees_Troy0550cfb2012-10-13 11:56:13 -04002986 if (!Was_Already_Mounted)
2987 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002988 return true;
Dees_Troy51127312012-09-08 13:08:49 -04002989}
Dees_Troy38bd7602012-09-14 13:33:53 -04002990
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002991bool TWPartition::Find_Wildcard_Block_Devices(const string& Device) {
2992 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
2993 string Path = TWFunc::Get_Path(Device);
2994 string Dev = TWFunc::Get_Filename(Device);
2995 size_t wildcard_index = Dev.find("*");
2996 if (wildcard_index != string::npos)
2997 Dev = Dev.substr(0, wildcard_index);
2998 wildcard_index = Dev.size();
2999 DIR* d = opendir(Path.c_str());
3000 if (d == NULL) {
3001 LOGINFO("Error opening '%s': %s\n", Path.c_str(), strerror(errno));
3002 return false;
3003 }
3004 struct dirent* de;
3005 while ((de = readdir(d)) != NULL) {
3006 if (de->d_type != DT_BLK || strlen(de->d_name) <= wildcard_index || strncmp(de->d_name, Dev.c_str(), wildcard_index) != 0)
3007 continue;
3008
3009 string item = Path + "/";
3010 item.append(de->d_name);
3011 if (PartitionManager.Find_Partition_By_Block_Device(item))
3012 continue;
3013 TWPartition *part = new TWPartition;
3014 char buffer[MAX_FSTAB_LINE_LENGTH];
3015 sprintf(buffer, "%s %s-%i auto defaults defaults", item.c_str(), Mount_Point.c_str(), ++mount_point_index);
bigbiff8da46fa2020-09-08 16:42:34 -04003016 part->Process_Fstab_Line(buffer, false, NULL);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003017 char display[MAX_FSTAB_LINE_LENGTH];
3018 sprintf(display, "%s %i", Storage_Name.c_str(), mount_point_index);
3019 part->Storage_Name = display;
3020 part->Display_Name = display;
3021 part->Primary_Block_Device = item;
3022 part->Wildcard_Block_Device = false;
3023 part->Is_SubPartition = true;
3024 part->SubPartition_Of = Mount_Point;
3025 part->Is_Storage = Is_Storage;
3026 part->Can_Be_Mounted = true;
3027 part->Removable = true;
3028 part->Can_Be_Wiped = Can_Be_Wiped;
3029 part->Wipe_Available_in_GUI = Wipe_Available_in_GUI;
3030 part->Find_Actual_Block_Device();
3031 part->Update_Size(false);
3032 Has_SubPartition = true;
3033 PartitionManager.Output_Partition(part);
3034 PartitionManager.Add_Partition(part);
3035 }
3036 closedir(d);
3037 return (mount_point_index > 0);
3038}
3039
Dees_Troy38bd7602012-09-14 13:33:53 -04003040void TWPartition::Find_Actual_Block_Device(void) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06003041 if (!Sysfs_Entry.empty() && Primary_Block_Device.empty() && Decrypted_Block_Device.empty()) {
3042 /* Sysfs_Entry.empty() indicates if this is a sysfs entry that begins with /device/
3043 * If we have a syfs entry then we are looking for this device from a uevent add.
3044 * The uevent add will set the primary block device based on the data we receive from
3045 * after checking for adopted storage. If the device ends up being adopted, then the
3046 * decrypted block device will be set instead of the primary block device. */
3047 Is_Present = false;
3048 return;
3049 }
3050 if (Wildcard_Block_Device && !Is_Adopted_Storage) {
3051 Is_Present = false;
3052 Actual_Block_Device = "";
3053 Can_Be_Mounted = false;
3054 if (!Find_Wildcard_Block_Devices(Primary_Block_Device)) {
3055 string Dev = Primary_Block_Device.substr(0, Primary_Block_Device.find("*"));
3056 if (TWFunc::Path_Exists(Dev)) {
3057 Is_Present = true;
3058 Can_Be_Mounted = true;
3059 Actual_Block_Device = Dev;
3060 }
3061 }
3062 return;
3063 } else if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003064 Actual_Block_Device = Decrypted_Block_Device;
Ethan Yonker1b190162016-12-05 15:25:19 -06003065 if (TWFunc::Path_Exists(Decrypted_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003066 Is_Present = true;
Ethan Yonker1b190162016-12-05 15:25:19 -06003067 return;
3068 }
3069 } else if (SlotSelect && TWFunc::Path_Exists(Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix())) {
3070 Actual_Block_Device = Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix();
3071 unlink(Primary_Block_Device.c_str());
3072 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
3073 Is_Present = true;
3074 return;
Dees_Troy43d8b002012-09-17 16:00:01 -04003075 } else if (TWFunc::Path_Exists(Primary_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04003076 Is_Present = true;
3077 Actual_Block_Device = Primary_Block_Device;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003078 return;
3079 }
Ethan Yonker1b190162016-12-05 15:25:19 -06003080 if (!Alternate_Block_Device.empty() && TWFunc::Path_Exists(Alternate_Block_Device)) {
Dees_Troy3f04d032012-10-07 18:20:09 -04003081 Actual_Block_Device = Alternate_Block_Device;
Dees_Troy38bd7602012-09-14 13:33:53 -04003082 Is_Present = true;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003083 } else {
Dees_Troy38bd7602012-09-14 13:33:53 -04003084 Is_Present = false;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003085 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003086}
3087
3088void TWPartition::Recreate_Media_Folder(void) {
3089 string Command;
Ethan Yonker66a19492015-12-10 10:19:45 -06003090 string Media_Path = Mount_Point + "/media";
Dees_Troy38bd7602012-09-14 13:33:53 -04003091
Ethan Yonkerbd7492d2016-12-07 13:55:01 -06003092 if (Is_FBE) {
3093 LOGINFO("Not recreating media folder on FBE\n");
3094 return;
3095 }
Dees_Troy38bd7602012-09-14 13:33:53 -04003096 if (!Mount(true)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003097 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Media_Path));
3098 } else if (!TWFunc::Path_Exists(Media_Path)) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003099 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker66a19492015-12-10 10:19:45 -06003100 LOGINFO("Recreating %s folder.\n", Media_Path.c_str());
3101 mkdir(Media_Path.c_str(), 0770);
xiaolu9416f4f2015-06-04 08:22:23 +08003102 string Internal_path = DataManager::GetStrValue("tw_internal_path");
3103 if (!Internal_path.empty()) {
3104 LOGINFO("Recreating %s folder.\n", Internal_path.c_str());
3105 mkdir(Internal_path.c_str(), 0770);
3106 }
3107#ifdef TW_INTERNAL_STORAGE_PATH
3108 mkdir(EXPAND(TW_INTERNAL_STORAGE_PATH), 0770);
3109#endif
Matt Mower87413642017-01-17 21:14:46 -06003110
thata3d31fb2014-12-21 22:27:40 +01003111 // Afterwards, we will try to set the
3112 // default metadata that we were hopefully able to get during
3113 // early boot.
Ethan Yonker66a19492015-12-10 10:19:45 -06003114 tw_set_default_metadata(Media_Path.c_str());
xiaolu9416f4f2015-06-04 08:22:23 +08003115 if (!Internal_path.empty())
3116 tw_set_default_metadata(Internal_path.c_str());
Matt Mower87413642017-01-17 21:14:46 -06003117
Ethan Yonker5eac2222014-06-11 12:22:55 -05003118 // Toggle mount to ensure that "internal sdcard" gets mounted
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003119 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker5eac2222014-06-11 12:22:55 -05003120 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Dees_Troy38bd7602012-09-14 13:33:53 -04003121 }
Dees_Troy43d8b002012-09-17 16:00:01 -04003122}
Dees_Troye58d5262012-09-21 12:27:57 -04003123
3124void TWPartition::Recreate_AndSec_Folder(void) {
Dees_Troye58d5262012-09-21 12:27:57 -04003125 if (!Has_Android_Secure)
3126 return;
Dees_Troy2673cec2013-04-02 20:22:16 +00003127 LOGINFO("Creating %s: %s\n", Backup_Display_Name.c_str(), Symlink_Path.c_str());
Dees_Troye58d5262012-09-21 12:27:57 -04003128 if (!Mount(true)) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003129 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Backup_Name));
Dees_Troye58d5262012-09-21 12:27:57 -04003130 } else if (!TWFunc::Path_Exists(Symlink_Path)) {
Dees_Troy2673cec2013-04-02 20:22:16 +00003131 LOGINFO("Recreating %s folder.\n", Backup_Name.c_str());
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003132 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05003133 mkdir(Symlink_Path.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003134 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04003135 }
3136}
bigbiff7cb4c332014-11-26 20:36:07 -05003137
3138uint64_t TWPartition::Get_Max_FileSize() {
3139 uint64_t maxFileSize = 0;
3140 const uint64_t constGB = (uint64_t) 1024 * 1024 * 1024;
3141 const uint64_t constTB = (uint64_t) constGB * 1024;
3142 const uint64_t constPB = (uint64_t) constTB * 1024;
bigbiff0c532032014-12-21 13:41:26 -05003143 if (Current_File_System == "ext4")
3144 maxFileSize = 16 * constTB; //16 TB
3145 else if (Current_File_System == "vfat")
3146 maxFileSize = 4 * constGB; //4 GB
Captain Throwback47bf7202020-10-06 17:39:39 -04003147 else if (Current_File_System == "ntfs" || Current_File_System == "tntfs")
bigbiff0c532032014-12-21 13:41:26 -05003148 maxFileSize = 256 * constTB; //256 TB
3149 else if (Current_File_System == "exfat")
3150 maxFileSize = 16 * constPB; //16 PB
3151 else if (Current_File_System == "ext3")
3152 maxFileSize = 2 * constTB; //2 TB
3153 else if (Current_File_System == "f2fs")
3154 maxFileSize = 3.94 * constTB; //3.94 TB
bigbiff7cb4c332014-11-26 20:36:07 -05003155 else
3156 maxFileSize = 100000000L;
3157 return maxFileSize - 1;
3158}
3159
bigbiffce8f83c2015-12-12 18:30:21 -05003160bool TWPartition::Flash_Image(PartitionSettings *part_settings) {
3161 string Restore_File_System, full_filename;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003162
Ethan Yonkere080c1f2016-09-19 13:50:25 -05003163 full_filename = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003164
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003165 LOGINFO("Image filename is: %s\n", Backup_FileName.c_str());
bigbiffce8f83c2015-12-12 18:30:21 -05003166
3167 if (Backup_Method == BM_FILES) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003168 LOGERR("Cannot flash images to file systems\n");
3169 return false;
3170 } else if (!Can_Flash_Img) {
3171 LOGERR("Cannot flash images to partitions %s\n", Display_Name.c_str());
3172 return false;
3173 } else {
3174 if (!Find_Partition_Size()) {
3175 LOGERR("Unable to find partition size for '%s'\n", Mount_Point.c_str());
3176 return false;
3177 }
bigbiffce8f83c2015-12-12 18:30:21 -05003178 unsigned long long image_size = TWFunc::Get_File_Size(full_filename);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003179 if (image_size > Size) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003180 LOGINFO("Size (%llu bytes) of image '%s' is larger than target device '%s' (%llu bytes)\n",
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003181 image_size, Backup_FileName.c_str(), Actual_Block_Device.c_str(), Size);
Ethan Yonker74db1572015-10-28 12:44:49 -05003182 gui_err("img_size_err=Size of image is larger than target device");
Ethan Yonker96af84a2015-01-05 14:58:36 -06003183 return false;
3184 }
bigbiffce8f83c2015-12-12 18:30:21 -05003185 if (Backup_Method == BM_DD) {
3186 if (!part_settings->adbbackup) {
3187 if (Is_Sparse_Image(full_filename)) {
3188 return Flash_Sparse_Image(full_filename);
3189 }
Ethan Yonker472f5062016-02-25 13:47:30 -06003190 }
bigbiffce8f83c2015-12-12 18:30:21 -05003191 return Raw_Read_Write(part_settings);
3192 } else if (Backup_Method == BM_FLASH_UTILS) {
3193 return Flash_Image_FI(full_filename, NULL);
Ethan Yonker472f5062016-02-25 13:47:30 -06003194 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003195 }
3196
3197 LOGERR("Unknown flash method for '%s'\n", Mount_Point.c_str());
3198 return false;
3199}
3200
Ethan Yonker472f5062016-02-25 13:47:30 -06003201bool TWPartition::Is_Sparse_Image(const string& Filename) {
HashBanged974bb2016-01-30 14:20:09 -05003202 uint32_t magic = 0;
3203 int fd = open(Filename.c_str(), O_RDONLY);
3204 if (fd < 0) {
3205 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3206 return false;
3207 }
bigbiffce8f83c2015-12-12 18:30:21 -05003208
HashBanged974bb2016-01-30 14:20:09 -05003209 if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) {
3210 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3211 close(fd);
3212 return false;
3213 }
3214 close(fd);
Ethan Yonker472f5062016-02-25 13:47:30 -06003215 if (magic == SPARSE_HEADER_MAGIC)
3216 return true;
3217 return false;
3218}
3219
3220bool TWPartition::Flash_Sparse_Image(const string& Filename) {
3221 string Command;
3222
3223 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
3224
3225 Command = "simg2img '" + Filename + "' '" + Actual_Block_Device + "'";
Ethan Yonker96af84a2015-01-05 14:58:36 -06003226 LOGINFO("Flash command: '%s'\n", Command.c_str());
3227 TWFunc::Exec_Cmd(Command);
3228 return true;
3229}
3230
Ethan Yonker472f5062016-02-25 13:47:30 -06003231bool TWPartition::Flash_Image_FI(const string& Filename, ProgressTracking *progress) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003232 string Command;
Ethan Yonker472f5062016-02-25 13:47:30 -06003233 unsigned long long file_size;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003234
Ethan Yonker74db1572015-10-28 12:44:49 -05003235 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
Ethan Yonker472f5062016-02-25 13:47:30 -06003236 if (progress) {
3237 file_size = (unsigned long long)(TWFunc::Get_File_Size(Filename));
3238 progress->SetPartitionSize(file_size);
3239 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003240 // Sometimes flash image doesn't like to flash due to the first 2KB matching, so we erase first to ensure that it flashes
3241 Command = "erase_image " + MTD_Name;
3242 LOGINFO("Erase command: '%s'\n", Command.c_str());
3243 TWFunc::Exec_Cmd(Command);
3244 Command = "flash_image " + MTD_Name + " '" + Filename + "'";
3245 LOGINFO("Flash command: '%s'\n", Command.c_str());
3246 TWFunc::Exec_Cmd(Command);
Ethan Yonker472f5062016-02-25 13:47:30 -06003247 if (progress)
3248 progress->UpdateSize(file_size);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003249 return true;
3250}
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003251
3252void TWPartition::Change_Mount_Read_Only(bool new_value) {
3253 Mount_Read_Only = new_value;
3254}
3255
bigbiffce8f83c2015-12-12 18:30:21 -05003256bool TWPartition::Is_Read_Only() {
3257 return Mount_Read_Only;
3258}
3259
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003260int TWPartition::Check_Lifetime_Writes() {
3261 bool original_read_only = Mount_Read_Only;
3262 int ret = 1;
3263
3264 Mount_Read_Only = true;
3265 if (Mount(false)) {
3266 Find_Actual_Block_Device();
Ethan Yonker54970bb2019-01-17 16:19:24 -06003267 string temp = Actual_Block_Device;
3268 Find_Real_Block_Device(temp, false);
3269 string block = basename(temp.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003270 string file = "/sys/fs/" + Current_File_System + "/" + block + "/lifetime_write_kbytes";
3271 string result;
3272 if (TWFunc::Path_Exists(file)) {
3273 if (TWFunc::read_file(file, result) != 0) {
3274 LOGINFO("Check_Lifetime_Writes of '%s' failed to read_file\n", file.c_str());
3275 } else {
3276 LOGINFO("Check_Lifetime_Writes result: '%s'\n", result.c_str());
3277 if (result == "0") {
3278 ret = 0;
3279 }
3280 }
3281 } else {
3282 LOGINFO("Check_Lifetime_Writes file does not exist '%s'\n", file.c_str());
3283 }
3284 UnMount(true);
3285 } else {
3286 LOGINFO("Check_Lifetime_Writes failed to mount '%s'\n", Mount_Point.c_str());
3287 }
3288 Mount_Read_Only = original_read_only;
3289 return ret;
3290}
Ethan Yonker66a19492015-12-10 10:19:45 -06003291
3292int TWPartition::Decrypt_Adopted() {
3293#ifdef TW_INCLUDE_CRYPTO
3294 int ret = 1;
3295 Is_Adopted_Storage = false;
3296 string Adopted_Key_File = "";
3297
3298 if (!Removable)
3299 return ret;
3300
3301 int fd = open(Alternate_Block_Device.c_str(), O_RDONLY);
3302 if (fd < 0) {
3303 LOGINFO("failed to open '%s'\n", Alternate_Block_Device.c_str());
3304 return ret;
3305 }
3306 char type_guid[80];
3307 char part_guid[80];
3308
nkk713c1e35f2017-03-24 18:28:03 +02003309 uint32_t p_num;
3310 size_t last_digit = Primary_Block_Device.find_last_not_of("0123456789");
3311 if ((last_digit != string::npos) && (last_digit != Primary_Block_Device.length()-1))
3312 p_num = atoi(Primary_Block_Device.substr(last_digit + 1).c_str()) + 1;
3313 else
3314 p_num = 2;
3315
3316 if (gpt_disk_get_partition_info(fd, p_num, type_guid, part_guid) == 0) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003317 LOGINFO("type: '%s'\n", type_guid);
3318 LOGINFO("part: '%s'\n", part_guid);
3319 Adopted_GUID = part_guid;
3320 LOGINFO("Adopted_GUID '%s'\n", Adopted_GUID.c_str());
3321 if (strcmp(type_guid, TWGptAndroidExpand) == 0) {
3322 LOGINFO("android_expand found\n");
3323 Adopted_Key_File = "/data/misc/vold/expand_";
3324 Adopted_Key_File += part_guid;
3325 Adopted_Key_File += ".key";
3326 if (TWFunc::Path_Exists(Adopted_Key_File)) {
3327 Is_Adopted_Storage = true;
3328 /* Until we find a use case for this, I think it is safe
3329 * to disable USB Mass Storage whenever adopted storage
3330 * is present.
3331 */
nkk713c1e35f2017-03-24 18:28:03 +02003332 if (p_num == 2) {
3333 // TODO: Properly detect mixed vs fully adopted storage. Maybe this
3334 // should be moved to partitionmanager instead, and disable after
3335 // checking all partitions. Also the presence of adopted storage does
3336 // not necessarily mean it's being used as Internal Storage
3337 LOGINFO("Detected adopted storage, disabling USB mass storage mode\n");
3338 DataManager::SetValue("tw_has_usb_storage", 0);
3339 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003340 }
3341 }
3342 }
3343
3344 if (Is_Adopted_Storage) {
nkk713c1e35f2017-03-24 18:28:03 +02003345 string Adopted_Block_Device = Alternate_Block_Device + "p" + TWFunc::to_string(p_num);
Ethan Yonker66a19492015-12-10 10:19:45 -06003346 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
nkk713c1e35f2017-03-24 18:28:03 +02003347 Adopted_Block_Device = Alternate_Block_Device + TWFunc::to_string(p_num);
Ethan Yonker66a19492015-12-10 10:19:45 -06003348 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3349 LOGINFO("Adopted block device does not exist\n");
3350 goto exit;
3351 }
3352 }
3353 LOGINFO("key file is '%s', block device '%s'\n", Adopted_Key_File.c_str(), Adopted_Block_Device.c_str());
3354 char crypto_blkdev[MAXPATHLEN];
3355 std::string thekey;
3356 int fdkey = open(Adopted_Key_File.c_str(), O_RDONLY);
3357 if (fdkey < 0) {
3358 LOGINFO("failed to open key file\n");
3359 goto exit;
3360 }
3361 char buf[512];
3362 ssize_t n;
3363 while ((n = read(fdkey, &buf[0], sizeof(buf))) > 0) {
3364 thekey.append(buf, n);
3365 }
3366 close(fdkey);
3367 unsigned char* key = (unsigned char*) thekey.data();
3368 cryptfs_revert_ext_volume(part_guid);
3369
3370 ret = cryptfs_setup_ext_volume(part_guid, Adopted_Block_Device.c_str(), key, thekey.size(), crypto_blkdev);
3371 if (ret == 0) {
3372 LOGINFO("adopted storage new block device: '%s'\n", crypto_blkdev);
3373 Decrypted_Block_Device = crypto_blkdev;
3374 Is_Decrypted = true;
3375 Is_Encrypted = true;
3376 Find_Actual_Block_Device();
Kjell Braden3126a112016-06-19 16:58:15 +00003377 if (!Mount_Storage_Retry(false)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003378 LOGERR("Failed to mount decrypted adopted storage device\n");
3379 Is_Decrypted = false;
3380 Is_Encrypted = false;
3381 cryptfs_revert_ext_volume(part_guid);
3382 ret = 1;
3383 } else {
Ethan Yonkerfcf3f242016-02-16 12:30:26 -06003384 UnMount(false);
3385 Has_Android_Secure = false;
3386 Symlink_Path = "";
3387 Symlink_Mount_Point = "";
3388 Backup_Name = Mount_Point.substr(1);
3389 Backup_Path = Mount_Point;
3390 TWPartition* sdext = PartitionManager.Find_Partition_By_Path("/sd-ext");
3391 if (sdext && sdext->Actual_Block_Device == Adopted_Block_Device) {
3392 LOGINFO("Removing /sd-ext from partition list due to adopted storage\n");
3393 PartitionManager.Remove_Partition_By_Path("/sd-ext");
3394 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003395 Setup_Data_Media();
Ethan Yonker66a19492015-12-10 10:19:45 -06003396 Wipe_Available_in_GUI = true;
3397 Wipe_During_Factory_Reset = true;
3398 Can_Be_Backed_Up = true;
3399 Can_Encrypt_Backup = true;
3400 Use_Userdata_Encryption = true;
3401 Is_Storage = true;
3402 Storage_Name = "Adopted Storage";
3403 Is_SubPartition = true;
3404 SubPartition_Of = "/data";
3405 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
3406 DataManager::SetValue("tw_has_adopted_storage", 1);
3407 }
3408 } else {
3409 LOGERR("Failed to setup adopted storage decryption\n");
3410 }
3411 }
3412exit:
Matt Mower06543e32017-01-06 15:25:26 -06003413 close(fd);
Ethan Yonker66a19492015-12-10 10:19:45 -06003414 return ret;
3415#else
3416 LOGINFO("Decrypt_Adopted: no crypto support\n");
3417 return 1;
3418#endif
3419}
3420
3421void TWPartition::Revert_Adopted() {
3422#ifdef TW_INCLUDE_CRYPTO
3423 if (!Adopted_GUID.empty()) {
3424 PartitionManager.Remove_MTP_Storage(Mount_Point);
3425 UnMount(false);
3426 cryptfs_revert_ext_volume(Adopted_GUID.c_str());
3427 Is_Adopted_Storage = false;
3428 Is_Encrypted = false;
3429 Is_Decrypted = false;
3430 Decrypted_Block_Device = "";
3431 Find_Actual_Block_Device();
3432 Wipe_During_Factory_Reset = false;
3433 Can_Be_Backed_Up = false;
3434 Can_Encrypt_Backup = false;
3435 Use_Userdata_Encryption = false;
3436 Is_SubPartition = false;
3437 SubPartition_Of = "";
3438 Has_Data_Media = false;
3439 Storage_Path = Mount_Point;
3440 if (!Symlink_Mount_Point.empty()) {
3441 TWPartition* Dat = PartitionManager.Find_Partition_By_Path("/data");
3442 if (Dat) {
3443 Dat->UnMount(false);
3444 Dat->Symlink_Mount_Point = Symlink_Mount_Point;
3445 }
3446 Symlink_Mount_Point = "";
3447 }
3448 }
3449#else
3450 LOGINFO("Revert_Adopted: no crypto support\n");
3451#endif
3452}
bigbiff bigbiffb5ecaad2017-03-20 18:53:53 -04003453
3454void TWPartition::Set_Backup_FileName(string fname) {
3455 Backup_FileName = fname;
3456}
3457
3458string TWPartition::Get_Backup_Name() {
3459 return Backup_Name;
3460}
bigbiffee7b7ff2020-03-23 15:08:27 -04003461
3462string TWPartition::Get_Mount_Point() {
3463 return Mount_Point;
3464}
3465
3466void TWPartition::Set_Block_Device(std::string block_device) {
3467 Primary_Block_Device = Actual_Block_Device = block_device;
3468}
3469
3470bool TWPartition::Get_Super_Status() {
3471 return Is_Super;
3472}
3473
3474void TWPartition::Set_Can_Be_Backed_Up(bool val) {
3475 Can_Be_Backed_Up = val;
3476}
3477
3478void TWPartition::Set_Can_Be_Wiped(bool val) {
3479 Can_Be_Wiped = val;
3480 Wipe_Available_in_GUI = val;
bigbiffad58e1b2020-07-06 20:24:34 -04003481}
3482
3483std::string TWPartition::Get_Backup_FileName() {
3484 return Backup_FileName;
3485}
3486
3487std::string TWPartition::Get_Display_Name() {
3488 return Display_Name;
3489}
3490
3491bool TWPartition::Is_SlotSelect() {
3492 return SlotSelect;
Mohd Faraz815e2402020-09-19 19:31:52 +05303493}