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Dees Troy3be70a82013-10-22 14:25:12 +00001/*
bigbiff bigbiff56cf5642016-08-19 17:43:45 -04002 Copyright 2013 to 2017 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>
22#include <sys/stat.h>
23#include <sys/vfs.h>
Dees_Troy5bf43922012-09-07 16:07:55 -040024#include <sys/mount.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040025#include <unistd.h>
Dees_Troy51127312012-09-08 13:08:49 -040026#include <dirent.h>
thatf54e5392016-01-29 22:04:43 +010027#include <libgen.h>
bigbiffce8f83c2015-12-12 18:30:21 -050028#include <zlib.h>
bigbiff bigbiff9c754052013-01-09 09:09:08 -050029#include <iostream>
30#include <sstream>
Ethan Yonker66a19492015-12-10 10:19:45 -060031#include <sys/param.h>
Ethan Yonker472f5062016-02-25 13:47:30 -060032#include <fcntl.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040033
Ethan Yonker007de982018-08-31 14:23:16 -050034#include "cutils/properties.h"
bigbiff7b4c7a62015-01-01 19:44:14 -050035#include "libblkid/include/blkid.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040036#include "variables.h"
Dees_Troy2673cec2013-04-02 20:22:16 +000037#include "twcommon.h"
Dees_Troy51a0e822012-09-05 15:24:24 -040038#include "partitions.hpp"
Dees_Troy5bf43922012-09-07 16:07:55 -040039#include "data.hpp"
Dees_Troy43d8b002012-09-17 16:00:01 -040040#include "twrp-functions.hpp"
bigbiff bigbiff9c754052013-01-09 09:09:08 -050041#include "twrpTar.hpp"
Ethan Yonker3fdcda42016-11-30 12:29:37 -060042#include "exclude.hpp"
Ethan Yonker1b7a31b2014-07-03 15:09:22 -050043#include "infomanager.hpp"
Ethan Yonker4b94cfd2014-12-11 10:00:45 -060044#include "set_metadata.h"
Ethan Yonker74db1572015-10-28 12:44:49 -050045#include "gui/gui.hpp"
bigbiffce8f83c2015-12-12 18:30:21 -050046#include "adbbu/libtwadbbu.hpp"
Ethan Yonker98661c12018-10-17 08:39:28 -050047#ifdef TW_INCLUDE_CRYPTO
48 #include "crypto/fde/cryptfs.h"
49 #ifdef TW_INCLUDE_FBE
50 #include "crypto/ext4crypt/Decrypt.h"
51 #endif
52#else
53 #define CRYPT_FOOTER_OFFSET 0x4000
54#endif
Dees_Troy5bf43922012-09-07 16:07:55 -040055extern "C" {
Dees_Troy38bd7602012-09-14 13:33:53 -040056 #include "mtdutils/mtdutils.h"
57 #include "mtdutils/mounts.h"
Dees_Troya95f55c2013-08-17 13:14:43 +000058#ifdef USE_EXT4
Ethan Yonker8373cfe2017-09-08 06:50:54 -050059 // #include "make_ext4fs.h" TODO need ifdef for android8
60 #include <ext4_utils/make_ext4fs.h>
Dees_Troya95f55c2013-08-17 13:14:43 +000061#endif
Ethan Yonker71413f42014-02-26 13:36:08 -060062#ifdef TW_INCLUDE_CRYPTO
Ethan Yonker66a19492015-12-10 10:19:45 -060063 #include "gpt/gpt.h"
Ethan Yonker71413f42014-02-26 13:36:08 -060064#endif
Dees_Troy5bf43922012-09-07 16:07:55 -040065}
Matt Mower87413642017-01-17 21:14:46 -060066#include <selinux/selinux.h>
Ethan Yonkerf27497f2014-02-09 11:48:33 -060067#include <selinux/label.h>
Dees Troy4159aed2014-02-28 17:24:43 +000068#ifdef HAVE_CAPABILITIES
69#include <sys/capability.h>
70#include <sys/xattr.h>
71#include <linux/xattr.h>
72#endif
HashBanged974bb2016-01-30 14:20:09 -050073#include <sparse_format.h>
Ethan Yonker472f5062016-02-25 13:47:30 -060074#include "progresstracking.hpp"
Dees_Troy51a0e822012-09-05 15:24:24 -040075
bigbiff bigbiff9c754052013-01-09 09:09:08 -050076using namespace std;
77
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060078static 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
79
Dees_Troya95f55c2013-08-17 13:14:43 +000080extern struct selabel_handle *selinux_handle;
Ethan Yonker6277c792014-09-15 14:54:30 -050081extern bool datamedia;
Dees_Troya95f55c2013-08-17 13:14:43 +000082
Hashcode62bd9e02013-11-19 21:59:42 -080083struct flag_list {
84 const char *name;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060085 unsigned long flag;
Hashcode62bd9e02013-11-19 21:59:42 -080086};
87
Matt Mower4ab42b12016-04-21 13:52:18 -050088const struct flag_list mount_flags[] = {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -060089 { "noatime", MS_NOATIME },
90 { "noexec", MS_NOEXEC },
91 { "nosuid", MS_NOSUID },
92 { "nodev", MS_NODEV },
93 { "nodiratime", MS_NODIRATIME },
94 { "ro", MS_RDONLY },
95 { "rw", 0 },
96 { "remount", MS_REMOUNT },
97 { "bind", MS_BIND },
98 { "rec", MS_REC },
Dees Troyc4bc30e2014-02-03 15:04:19 +000099#ifdef MS_UNBINDABLE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600100 { "unbindable", MS_UNBINDABLE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000101#endif
102#ifdef MS_PRIVATE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600103 { "private", MS_PRIVATE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000104#endif
105#ifdef MS_SLAVE
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600106 { "slave", MS_SLAVE },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000107#endif
108#ifdef MS_SHARED
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600109 { "shared", MS_SHARED },
Dees Troyc4bc30e2014-02-03 15:04:19 +0000110#endif
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600111 { "sync", MS_SYNCHRONOUS },
112 { 0, 0 },
113};
114
115const char *ignored_mount_items[] = {
116 "defaults=",
117 "errors=",
Ethan Yonker93382822018-11-01 15:25:31 -0500118 "latemount",
119 "sysfs_path=",
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600120 NULL
Hashcode62bd9e02013-11-19 21:59:42 -0800121};
122
Matt Mower2416a502016-04-12 19:54:46 -0500123enum TW_FSTAB_FLAGS {
124 TWFLAG_DEFAULTS, // Retain position
125 TWFLAG_ANDSEC,
126 TWFLAG_BACKUP,
127 TWFLAG_BACKUPNAME,
128 TWFLAG_BLOCKSIZE,
129 TWFLAG_CANBEWIPED,
130 TWFLAG_CANENCRYPTBACKUP,
131 TWFLAG_DISPLAY,
132 TWFLAG_ENCRYPTABLE,
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500133 TWFLAG_FILEENCRYPTION,
Matt Mower2416a502016-04-12 19:54:46 -0500134 TWFLAG_FLASHIMG,
135 TWFLAG_FORCEENCRYPT,
136 TWFLAG_FSFLAGS,
137 TWFLAG_IGNOREBLKID,
138 TWFLAG_LENGTH,
139 TWFLAG_MOUNTTODECRYPT,
140 TWFLAG_REMOVABLE,
141 TWFLAG_RETAINLAYOUTVERSION,
142 TWFLAG_SETTINGSSTORAGE,
143 TWFLAG_STORAGE,
144 TWFLAG_STORAGENAME,
145 TWFLAG_SUBPARTITIONOF,
146 TWFLAG_SYMLINK,
147 TWFLAG_USERDATAENCRYPTBACKUP,
148 TWFLAG_USERMRF,
149 TWFLAG_WIPEDURINGFACTORYRESET,
150 TWFLAG_WIPEINGUI,
Ethan Yonker1b190162016-12-05 15:25:19 -0600151 TWFLAG_SLOTSELECT,
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600152 TWFLAG_WAIT,
153 TWFLAG_VERIFY,
154 TWFLAG_CHECK,
155 TWFLAG_ALTDEVICE,
156 TWFLAG_NOTRIM,
157 TWFLAG_VOLDMANAGED,
158 TWFLAG_FORMATTABLE,
159 TWFLAG_RESIZE,
Ethan Yonker93382822018-11-01 15:25:31 -0500160 TWFLAG_KEYDIRECTORY,
Matt Mower2416a502016-04-12 19:54:46 -0500161};
162
163/* Flags without a trailing '=' are considered dual format flags and can be
164 * written as either 'flagname' or 'flagname=', where the character following
165 * the '=' is Y,y,1 for true and false otherwise.
166 */
167const struct flag_list tw_flags[] = {
168 { "andsec", TWFLAG_ANDSEC },
169 { "backup", TWFLAG_BACKUP },
170 { "backupname=", TWFLAG_BACKUPNAME },
171 { "blocksize=", TWFLAG_BLOCKSIZE },
172 { "canbewiped", TWFLAG_CANBEWIPED },
173 { "canencryptbackup", TWFLAG_CANENCRYPTBACKUP },
174 { "defaults", TWFLAG_DEFAULTS },
175 { "display=", TWFLAG_DISPLAY },
176 { "encryptable=", TWFLAG_ENCRYPTABLE },
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500177 { "fileencryption=", TWFLAG_FILEENCRYPTION },
Matt Mower2416a502016-04-12 19:54:46 -0500178 { "flashimg", TWFLAG_FLASHIMG },
179 { "forceencrypt=", TWFLAG_FORCEENCRYPT },
180 { "fsflags=", TWFLAG_FSFLAGS },
181 { "ignoreblkid", TWFLAG_IGNOREBLKID },
182 { "length=", TWFLAG_LENGTH },
183 { "mounttodecrypt", TWFLAG_MOUNTTODECRYPT },
184 { "removable", TWFLAG_REMOVABLE },
185 { "retainlayoutversion", TWFLAG_RETAINLAYOUTVERSION },
186 { "settingsstorage", TWFLAG_SETTINGSSTORAGE },
187 { "storage", TWFLAG_STORAGE },
188 { "storagename=", TWFLAG_STORAGENAME },
189 { "subpartitionof=", TWFLAG_SUBPARTITIONOF },
190 { "symlink=", TWFLAG_SYMLINK },
191 { "userdataencryptbackup", TWFLAG_USERDATAENCRYPTBACKUP },
192 { "usermrf", TWFLAG_USERMRF },
193 { "wipeduringfactoryreset", TWFLAG_WIPEDURINGFACTORYRESET },
194 { "wipeingui", TWFLAG_WIPEINGUI },
Ethan Yonker1b190162016-12-05 15:25:19 -0600195 { "slotselect", TWFLAG_SLOTSELECT },
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600196 { "wait", TWFLAG_WAIT },
197 { "verify", TWFLAG_VERIFY },
198 { "check", TWFLAG_CHECK },
199 { "altdevice", TWFLAG_ALTDEVICE },
200 { "notrim", TWFLAG_NOTRIM },
201 { "voldmanaged=", TWFLAG_VOLDMANAGED },
202 { "formattable", TWFLAG_FORMATTABLE },
203 { "resize", TWFLAG_RESIZE },
Ethan Yonker93382822018-11-01 15:25:31 -0500204 { "keydirectory=", TWFLAG_KEYDIRECTORY },
Matt Mower2416a502016-04-12 19:54:46 -0500205 { 0, 0 },
206};
207
that9e0593e2014-10-08 00:01:24 +0200208TWPartition::TWPartition() {
Dees_Troy51a0e822012-09-05 15:24:24 -0400209 Can_Be_Mounted = false;
210 Can_Be_Wiped = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500211 Can_Be_Backed_Up = false;
Vojtech Bocek1dc30982013-08-30 21:49:30 +0200212 Use_Rm_Rf = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400213 Wipe_During_Factory_Reset = false;
214 Wipe_Available_in_GUI = false;
215 Is_SubPartition = false;
Dees_Troy2691f9d2012-09-24 11:15:49 -0400216 Has_SubPartition = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400217 SubPartition_Of = "";
218 Symlink_Path = "";
219 Symlink_Mount_Point = "";
220 Mount_Point = "";
Dees_Troye58d5262012-09-21 12:27:57 -0400221 Backup_Path = "";
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600222 Wildcard_Block_Device = false;
223 Sysfs_Entry = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400224 Actual_Block_Device = "";
225 Primary_Block_Device = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400226 Alternate_Block_Device = "";
227 Removable = false;
228 Is_Present = false;
229 Length = 0;
230 Size = 0;
231 Used = 0;
232 Free = 0;
233 Backup_Size = 0;
234 Can_Be_Encrypted = false;
235 Is_Encrypted = false;
236 Is_Decrypted = false;
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600237 Is_FBE = false;
Ethan Yonker253368a2014-11-25 15:00:52 -0600238 Mount_To_Decrypt = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400239 Decrypted_Block_Device = "";
240 Display_Name = "";
Dees_Troya13d74f2013-03-24 08:54:55 -0500241 Backup_Display_Name = "";
242 Storage_Name = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400243 Backup_Name = "";
Dees_Troy63c8df72012-09-10 14:02:05 -0400244 Backup_FileName = "";
Dees_Troy38bd7602012-09-14 13:33:53 -0400245 MTD_Name = "";
bigbiffce8f83c2015-12-12 18:30:21 -0500246 Backup_Method = BM_NONE;
Dees_Troy83bd4832013-05-04 12:39:56 +0000247 Can_Encrypt_Backup = false;
248 Use_Userdata_Encryption = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400249 Has_Data_Media = false;
Dees_Troye58d5262012-09-21 12:27:57 -0400250 Has_Android_Secure = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400251 Is_Storage = false;
Dees_Troya13d74f2013-03-24 08:54:55 -0500252 Is_Settings_Storage = false;
Dees_Troy51a0e822012-09-05 15:24:24 -0400253 Storage_Path = "";
254 Current_File_System = "";
255 Fstab_File_System = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800256 Mount_Flags = 0;
257 Mount_Options = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400258 Format_Block_Size = 0;
Dees_Troy68cab492012-12-12 19:29:35 +0000259 Ignore_Blkid = false;
Dees_Troy16c2b312013-01-15 16:51:18 +0000260 Retain_Layout_Version = false;
dianlujitao4879b372018-12-03 18:45:47 +0800261 Crypto_Key_Location = "";
Ethan Yonker726a0202014-12-16 20:01:38 -0600262 MTP_Storage_ID = 0;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600263 Can_Flash_Img = false;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500264 Mount_Read_Only = false;
Ethan Yonker66a19492015-12-10 10:19:45 -0600265 Is_Adopted_Storage = false;
266 Adopted_GUID = "";
Ethan Yonker1b190162016-12-05 15:25:19 -0600267 SlotSelect = false;
Ethan Yonker93382822018-11-01 15:25:31 -0500268 Key_Directory = "";
Dees_Troy51a0e822012-09-05 15:24:24 -0400269}
270
271TWPartition::~TWPartition(void) {
272 // Do nothing
273}
274
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600275bool 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 -0500276 char full_line[MAX_FSTAB_LINE_LENGTH];
Matt Mower2416a502016-04-12 19:54:46 -0500277 char twflags[MAX_FSTAB_LINE_LENGTH] = "";
Dees_Troy5bf43922012-09-07 16:07:55 -0400278 char* ptr;
Matt Mower2b2dd152016-04-26 11:24:08 -0500279 int line_len = strlen(fstab_line), index = 0, item_index = 0;
Dees_Troya13d74f2013-03-24 08:54:55 -0500280 bool skip = false;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600281 int fstab_version = 1, mount_point_index = 0, fs_index = 1, block_device_index = 2;
282 TWPartition *additional_entry = NULL;
283 std::map<string, Flags_Map>::iterator it;
Dees_Troy5bf43922012-09-07 16:07:55 -0400284
Matt Mower2b2dd152016-04-26 11:24:08 -0500285 strlcpy(full_line, fstab_line, sizeof(full_line));
Dees_Troy51127312012-09-08 13:08:49 -0400286 for (index = 0; index < line_len; index++) {
Dees_Troya13d74f2013-03-24 08:54:55 -0500287 if (full_line[index] == 34)
288 skip = !skip;
289 if (!skip && full_line[index] <= 32)
Dees_Troy5bf43922012-09-07 16:07:55 -0400290 full_line[index] = '\0';
Dees_Troy5bf43922012-09-07 16:07:55 -0400291 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600292 if (line_len < 10)
293 return false; // There can't possibly be a valid fstab line that is less than 10 chars
294 if (strncmp(fstab_line, "/dev/", strlen("/dev/")) == 0 || strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
295 fstab_version = 2;
296 block_device_index = 0;
297 mount_point_index = 1;
298 fs_index = 2;
299 }
300
301 index = 0;
Dees_Troy5bf43922012-09-07 16:07:55 -0400302 while (index < line_len) {
303 while (index < line_len && full_line[index] == '\0')
304 index++;
305 if (index >= line_len)
306 continue;
307 ptr = full_line + index;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600308 if (item_index == mount_point_index) {
309 Mount_Point = ptr;
310 if (fstab_version == 2) {
311 additional_entry = PartitionManager.Find_Partition_By_Path(Mount_Point);
312 if (additional_entry) {
313 LOGINFO("Found an additional entry for '%s'\n", Mount_Point.c_str());
314 }
315 }
316 LOGINFO("Processing '%s'\n", Mount_Point.c_str());
317 Backup_Path = Mount_Point;
318 Storage_Path = Mount_Point;
319 Display_Name = ptr + 1;
320 Backup_Display_Name = Display_Name;
321 Storage_Name = Display_Name;
322 item_index++;
323 } else if (item_index == fs_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400324 // File System
325 Fstab_File_System = ptr;
326 Current_File_System = ptr;
327 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600328 } else if (item_index == block_device_index) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400329 // Primary Block Device
Dees_Troy38bd7602012-09-14 13:33:53 -0400330 if (Fstab_File_System == "mtd" || Fstab_File_System == "yaffs2") {
Dees_Troy094207a2012-09-26 12:00:39 -0400331 MTD_Name = ptr;
332 Find_MTD_Block_Device(MTD_Name);
Dees_Troy5fcd8f92012-10-16 12:22:05 -0400333 } else if (Fstab_File_System == "bml") {
334 if (Mount_Point == "/boot")
335 MTD_Name = "boot";
336 else if (Mount_Point == "/recovery")
337 MTD_Name = "recovery";
338 Primary_Block_Device = ptr;
339 if (*ptr != '/')
Dees_Troy2673cec2013-04-02 20:22:16 +0000340 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 -0400341 } else if (*ptr != '/') {
Dees_Troy5bf43922012-09-07 16:07:55 -0400342 if (Display_Error)
Matt Mower2b2dd152016-04-26 11:24:08 -0500343 LOGERR("Invalid block device '%s' in fstab line '%s'", ptr, fstab_line);
Dees_Troy5bf43922012-09-07 16:07:55 -0400344 else
Matt Mower2b2dd152016-04-26 11:24:08 -0500345 LOGINFO("Invalid block device '%s' in fstab line '%s'", ptr, fstab_line);
Matt Mower72c87ce2016-04-26 14:34:56 -0500346 return false;
Dees_Troy38bd7602012-09-14 13:33:53 -0400347 } else {
348 Primary_Block_Device = ptr;
349 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
Dees_Troy5bf43922012-09-07 16:07:55 -0400350 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400351 item_index++;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600352 } else if (item_index > 2) {
353 if (fstab_version == 2) {
354 if (item_index == 3) {
355 Process_FS_Flags(ptr);
356 if (additional_entry) {
357 additional_entry->Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
358 return false; // We save the extra fs flags in the other partition entry and by returning false, this entry will be deleted
359 }
360 } else {
361 strlcpy(twflags, ptr, sizeof(twflags));
362 }
363 item_index++;
364 } else if (*ptr == '/') { // v2 fstab does not allow alternate block devices
Dees_Troy5bf43922012-09-07 16:07:55 -0400365 // Alternate Block Device
366 Alternate_Block_Device = ptr;
367 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
368 } else if (strlen(ptr) > 7 && strncmp(ptr, "length=", 7) == 0) {
369 // Partition length
370 ptr += 7;
371 Length = atoi(ptr);
Dees_Troy51127312012-09-08 13:08:49 -0400372 } else if (strlen(ptr) > 6 && strncmp(ptr, "flags=", 6) == 0) {
373 // Custom flags, save for later so that new values aren't overwritten by defaults
374 ptr += 6;
Matt Mower2416a502016-04-12 19:54:46 -0500375 strlcpy(twflags, ptr, sizeof(twflags));
Dees_Troy38bd7602012-09-14 13:33:53 -0400376 } else if (strlen(ptr) == 4 && (strncmp(ptr, "NULL", 4) == 0 || strncmp(ptr, "null", 4) == 0 || strncmp(ptr, "null", 4) == 0)) {
377 // Do nothing
Dees_Troy5bf43922012-09-07 16:07:55 -0400378 } else {
379 // Unhandled data
Matt Mower2b2dd152016-04-26 11:24:08 -0500380 LOGINFO("Unhandled fstab information '%s' in fstab line '%s'\n", ptr, fstab_line);
Dees_Troy5bf43922012-09-07 16:07:55 -0400381 }
382 }
383 while (index < line_len && full_line[index] != '\0')
384 index++;
385 }
386
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600387 // override block devices from the v2 fstab with the ones we read from the twrp.flags file in case they are different
388 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
389 it = twrp_flags->find(Mount_Point);
390 if (it != twrp_flags->end()) {
391 if (!it->second.Primary_Block_Device.empty()) {
392 Primary_Block_Device = it->second.Primary_Block_Device;
393 Find_Real_Block_Device(Primary_Block_Device, Display_Error);
394 }
395 if (!it->second.Alternate_Block_Device.empty()) {
396 Alternate_Block_Device = it->second.Alternate_Block_Device;
397 Find_Real_Block_Device(Alternate_Block_Device, Display_Error);
398 }
399 }
400 }
401
402 if (strncmp(fstab_line, "/devices/", strlen("/devices/")) == 0) {
403 Sysfs_Entry = Primary_Block_Device;
404 Primary_Block_Device = "";
405 Is_Storage = true;
406 Removable = true;
407 Wipe_Available_in_GUI = true;
408 Wildcard_Block_Device = true;
409 }
410 if (Primary_Block_Device.find("*") != string::npos)
411 Wildcard_Block_Device = true;
412
413 if (Mount_Point == "auto") {
414 Mount_Point = "/auto";
415 char autoi[5];
416 sprintf(autoi, "%i", auto_index);
417 Mount_Point += autoi;
418 Backup_Path = Mount_Point;
419 Storage_Path = Mount_Point;
420 auto_index++;
421 Setup_File_System(Display_Error);
422 Display_Name = "Storage";
423 Backup_Display_Name = Display_Name;
424 Storage_Name = Display_Name;
425 Can_Be_Backed_Up = false;
426 Wipe_Available_in_GUI = true;
427 Is_Storage = true;
428 Removable = true;
429 Wipe_Available_in_GUI = true;
430 } else if (!Is_File_System(Fstab_File_System) && !Is_Image(Fstab_File_System)) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400431 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +0000432 LOGERR("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -0400433 else
Dees_Troy2673cec2013-04-02 20:22:16 +0000434 LOGINFO("Unknown File System: '%s'\n", Fstab_File_System.c_str());
Matt Mower72c87ce2016-04-26 14:34:56 -0500435 return false;
Dees_Troy5bf43922012-09-07 16:07:55 -0400436 } else if (Is_File_System(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400437 Find_Actual_Block_Device();
Dees_Troy5bf43922012-09-07 16:07:55 -0400438 Setup_File_System(Display_Error);
Captain Throwback9d6feb52018-07-27 10:05:24 -0400439 if (Mount_Point == PartitionManager.Get_Android_Root_Path()) {
Dees_Troy5bf43922012-09-07 16:07:55 -0400440 Display_Name = "System";
Dees_Troya13d74f2013-03-24 08:54:55 -0500441 Backup_Display_Name = Display_Name;
442 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400443 Wipe_Available_in_GUI = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500444 Can_Be_Backed_Up = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500445 Mount_Read_Only = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400446 } else if (Mount_Point == "/data") {
447 Display_Name = "Data";
Dees_Troya13d74f2013-03-24 08:54:55 -0500448 Backup_Display_Name = Display_Name;
449 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400450 Wipe_Available_in_GUI = true;
Dees_Troy51127312012-09-08 13:08:49 -0400451 Wipe_During_Factory_Reset = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500452 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000453 Can_Encrypt_Backup = true;
454 Use_Userdata_Encryption = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400455 } else if (Mount_Point == "/cache") {
456 Display_Name = "Cache";
Dees_Troya13d74f2013-03-24 08:54:55 -0500457 Backup_Display_Name = Display_Name;
458 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400459 Wipe_Available_in_GUI = true;
Dees_Troy51127312012-09-08 13:08:49 -0400460 Wipe_During_Factory_Reset = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500461 Can_Be_Backed_Up = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400462 } else if (Mount_Point == "/datadata") {
Dees_Troy51127312012-09-08 13:08:49 -0400463 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400464 Display_Name = "DataData";
Dees_Troya13d74f2013-03-24 08:54:55 -0500465 Backup_Display_Name = Display_Name;
466 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400467 Is_SubPartition = true;
468 SubPartition_Of = "/data";
Dees_Troy5bf43922012-09-07 16:07:55 -0400469 DataManager::SetValue(TW_HAS_DATADATA, 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500470 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000471 Can_Encrypt_Backup = true;
472 Use_Userdata_Encryption = false; // This whole partition should be encrypted
Dees_Troy5bf43922012-09-07 16:07:55 -0400473 } else if (Mount_Point == "/sd-ext") {
Dees_Troy51127312012-09-08 13:08:49 -0400474 Wipe_During_Factory_Reset = true;
Dees_Troy5bf43922012-09-07 16:07:55 -0400475 Display_Name = "SD-Ext";
Dees_Troya13d74f2013-03-24 08:54:55 -0500476 Backup_Display_Name = Display_Name;
477 Storage_Name = Display_Name;
Dees_Troy5bf43922012-09-07 16:07:55 -0400478 Wipe_Available_in_GUI = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400479 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500480 Can_Be_Backed_Up = true;
Dees_Troy83bd4832013-05-04 12:39:56 +0000481 Can_Encrypt_Backup = true;
482 Use_Userdata_Encryption = true;
Dees_Troy2c50e182012-09-26 20:05:28 -0400483 } else if (Mount_Point == "/boot") {
484 Display_Name = "Boot";
Dees_Troya13d74f2013-03-24 08:54:55 -0500485 Backup_Display_Name = Display_Name;
Dees_Troy2c50e182012-09-26 20:05:28 -0400486 DataManager::SetValue("tw_boot_is_mountable", 1);
Dees_Troya13d74f2013-03-24 08:54:55 -0500487 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500488 } else if (Mount_Point == "/vendor") {
489 Display_Name = "Vendor";
490 Backup_Display_Name = Display_Name;
491 Storage_Name = Display_Name;
492 Mount_Read_Only = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400493 }
494#ifdef TW_EXTERNAL_STORAGE_PATH
495 if (Mount_Point == EXPAND(TW_EXTERNAL_STORAGE_PATH)) {
496 Is_Storage = true;
497 Storage_Path = EXPAND(TW_EXTERNAL_STORAGE_PATH);
Dees_Troyc51f1f92012-09-20 15:32:13 -0400498 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500499 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400500#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000501 if (Mount_Point == "/sdcard" || Mount_Point == "/external_sd" || Mount_Point == "/external_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400502 Is_Storage = true;
Dees_Troyc51f1f92012-09-20 15:32:13 -0400503 Removable = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500504 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400505#endif
Dees_Troyb05ddee2013-01-28 20:24:50 +0000506 }
Dees_Troy8170a922012-09-18 15:40:25 -0400507#ifdef TW_INTERNAL_STORAGE_PATH
508 if (Mount_Point == EXPAND(TW_INTERNAL_STORAGE_PATH)) {
509 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500510 Is_Settings_Storage = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400511 Storage_Path = EXPAND(TW_INTERNAL_STORAGE_PATH);
Dees_Troya13d74f2013-03-24 08:54:55 -0500512 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400513 }
514#else
Dees_Troy70737fa2013-04-08 13:19:20 +0000515 if (Mount_Point == "/emmc" || Mount_Point == "/internal_sd" || Mount_Point == "/internal_sdcard") {
Dees_Troy8170a922012-09-18 15:40:25 -0400516 Is_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500517 Is_Settings_Storage = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500518 Wipe_Available_in_GUI = true;
Dees_Troy8170a922012-09-18 15:40:25 -0400519 }
520#endif
Dees_Troy5bf43922012-09-07 16:07:55 -0400521 } else if (Is_Image(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -0400522 Find_Actual_Block_Device();
Ethan Yonker1b190162016-12-05 15:25:19 -0600523 Setup_Image();
Dees_Troya13d74f2013-03-24 08:54:55 -0500524 if (Mount_Point == "/boot") {
525 Display_Name = "Boot";
526 Backup_Display_Name = Display_Name;
527 Can_Be_Backed_Up = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600528 Can_Flash_Img = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500529 } else if (Mount_Point == "/recovery") {
530 Display_Name = "Recovery";
531 Backup_Display_Name = Display_Name;
Ethan Yonker96af84a2015-01-05 14:58:36 -0600532 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500533 } else if (Mount_Point == "/system_image") {
534 Display_Name = "System Image";
535 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500536 Can_Flash_Img = true;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -0500537 Can_Be_Backed_Up = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500538 } else if (Mount_Point == "/vendor_image") {
539 Display_Name = "Vendor Image";
540 Backup_Display_Name = Display_Name;
HashBanged974bb2016-01-30 14:20:09 -0500541 Can_Flash_Img = true;
Ethan Yonker1673e3d2015-10-26 21:51:58 -0500542 Can_Be_Backed_Up = true;
Dees_Troya13d74f2013-03-24 08:54:55 -0500543 }
Dees_Troy5bf43922012-09-07 16:07:55 -0400544 }
545
Matt Mower2416a502016-04-12 19:54:46 -0500546 // Process TWRP fstab flags
547 if (strlen(twflags) > 0) {
548 string Prev_Display_Name = Display_Name;
549 string Prev_Storage_Name = Storage_Name;
550 string Prev_Backup_Display_Name = Backup_Display_Name;
551 Display_Name = "";
552 Storage_Name = "";
553 Backup_Display_Name = "";
554
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600555 Process_TW_Flags(twflags, (fstab_version == 1), fstab_version);
556 Save_FS_Flags(Fstab_File_System, Mount_Flags, Mount_Options);
Matt Mower2416a502016-04-12 19:54:46 -0500557
558 bool has_display_name = !Display_Name.empty();
559 bool has_storage_name = !Storage_Name.empty();
560 bool has_backup_name = !Backup_Display_Name.empty();
561 if (!has_display_name) Display_Name = Prev_Display_Name;
562 if (!has_storage_name) Storage_Name = Prev_Storage_Name;
563 if (!has_backup_name) Backup_Display_Name = Prev_Backup_Display_Name;
564
565 if (has_display_name && !has_storage_name)
566 Storage_Name = Display_Name;
567 if (!has_display_name && has_storage_name)
568 Display_Name = Storage_Name;
569 if (has_display_name && !has_backup_name && Backup_Display_Name != "Android Secure")
570 Backup_Display_Name = Display_Name;
571 if (!has_display_name && has_backup_name)
572 Display_Name = Backup_Display_Name;
573 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600574
575 if (fstab_version == 2 && twrp_flags && twrp_flags->size() > 0) {
576 it = twrp_flags->find(Mount_Point);
577 if (it != twrp_flags->end()) {
578 char twrpflags[MAX_FSTAB_LINE_LENGTH] = "";
579 int skip = 0;
580 string Flags = it->second.Flags;
581 strcpy(twrpflags, Flags.c_str());
582 if (strlen(twrpflags) > strlen("flags=") && strncmp(twrpflags, "flags=", strlen("flags=")) == 0)
583 skip += strlen("flags=");
584 char* flagptr = twrpflags;
585 flagptr += skip;
586 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
587 }
588 }
nkk7198fc3992017-12-16 16:26:42 +0200589
590 if (Mount_Point == "/persist" && Can_Be_Mounted) {
591 bool mounted = Is_Mounted();
592 if (mounted || Mount(false)) {
593 // Read the backup settings file
594 DataManager::LoadPersistValues();
595 TWFunc::Fixup_Time_On_Boot("/persist/time/");
596 if (!mounted)
597 UnMount(false);
598 }
599 }
600
Dees_Troy51127312012-09-08 13:08:49 -0400601 return true;
602}
603
Matt Mower72c87ce2016-04-26 14:34:56 -0500604void TWPartition::Partition_Post_Processing(bool Display_Error) {
605 if (Mount_Point == "/data")
606 Setup_Data_Partition(Display_Error);
607 else if (Mount_Point == "/cache")
608 Setup_Cache_Partition(Display_Error);
609}
610
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600611void TWPartition::ExcludeAll(const string& path) {
612 backup_exclusions.add_absolute_dir(path);
613 wipe_exclusions.add_absolute_dir(path);
614}
615
Matt Mower72c87ce2016-04-26 14:34:56 -0500616void TWPartition::Setup_Data_Partition(bool Display_Error) {
617 if (Mount_Point != "/data")
618 return;
619
620 // Ensure /data is not mounted as tmpfs for qcom hardware decrypt
621 UnMount(false);
622
623#ifdef TW_INCLUDE_CRYPTO
624 if (datamedia)
625 Setup_Data_Media();
626 Can_Be_Encrypted = true;
627 char crypto_blkdev[255];
628 property_get("ro.crypto.fs_crypto_blkdev", crypto_blkdev, "error");
629 if (strcmp(crypto_blkdev, "error") != 0) {
630 DataManager::SetValue(TW_IS_DECRYPTED, 1);
631 Is_Encrypted = true;
632 Is_Decrypted = true;
Ethan Yonker93382822018-11-01 15:25:31 -0500633 if (Key_Directory.empty())
634 Is_FBE = false;
635 else
636 Is_FBE = true;
Ethan Yonkerbd7492d2016-12-07 13:55:01 -0600637 DataManager::SetValue(TW_IS_FBE, 0);
Matt Mower72c87ce2016-04-26 14:34:56 -0500638 Decrypted_Block_Device = crypto_blkdev;
639 LOGINFO("Data already decrypted, new block device: '%s'\n", crypto_blkdev);
640 } else if (!Mount(false)) {
641 if (Is_Present) {
Ethan Yonker93382822018-11-01 15:25:31 -0500642 if (Key_Directory.empty()) {
643 set_partition_data(Actual_Block_Device.c_str(), Crypto_Key_Location.c_str(), Fstab_File_System.c_str());
644 if (cryptfs_check_footer() == 0) {
645 Is_Encrypted = true;
646 Is_Decrypted = false;
647 Can_Be_Mounted = false;
648 Current_File_System = "emmc";
649 Setup_Image();
650 DataManager::SetValue(TW_IS_ENCRYPTED, 1);
651 DataManager::SetValue(TW_CRYPTO_PWTYPE, cryptfs_get_password_type());
652 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
653 DataManager::SetValue("tw_crypto_display", "");
654 } else {
655 gui_err("mount_data_footer=Could not mount /data and unable to find crypto footer.");
656 }
657 } else {
Matt Mower72c87ce2016-04-26 14:34:56 -0500658 Is_Encrypted = true;
659 Is_Decrypted = false;
Matt Mower72c87ce2016-04-26 14:34:56 -0500660 }
Ethan Yonker93382822018-11-01 15:25:31 -0500661 } else if (Key_Directory.empty()) {
Matt Mower72c87ce2016-04-26 14:34:56 -0500662 LOGERR("Primary block device '%s' for mount point '%s' is not present!\n", Primary_Block_Device.c_str(), Mount_Point.c_str());
663 }
664 } else {
Ethan Yonker93382822018-11-01 15:25:31 -0500665 Decrypt_FBE_DE();
Matt Mower72c87ce2016-04-26 14:34:56 -0500666 }
667 if (datamedia && (!Is_Encrypted || (Is_Encrypted && Is_Decrypted))) {
668 Setup_Data_Media();
669 Recreate_Media_Folder();
670 }
671#else
672 if (datamedia) {
673 Setup_Data_Media();
674 Recreate_Media_Folder();
675 }
676#endif
677}
678
Ethan Yonker93382822018-11-01 15:25:31 -0500679bool TWPartition::Decrypt_FBE_DE() {
680if (TWFunc::Path_Exists("/data/unencrypted/key/version")) {
681 LOGINFO("File Based Encryption is present\n");
682#ifdef TW_INCLUDE_FBE
683 ExcludeAll(Mount_Point + "/convert_fbe");
684 ExcludeAll(Mount_Point + "/unencrypted");
685 //ExcludeAll(Mount_Point + "/system/users/0"); // we WILL need to retain some of this if multiple users are present or we just need to delete more folders for the extra users somewhere else
686 ExcludeAll(Mount_Point + "/misc/vold/user_keys");
687 //ExcludeAll(Mount_Point + "/system_ce");
688 //ExcludeAll(Mount_Point + "/system_de");
689 //ExcludeAll(Mount_Point + "/misc_ce");
690 //ExcludeAll(Mount_Point + "/misc_de");
691 ExcludeAll(Mount_Point + "/system/gatekeeper.password.key");
692 ExcludeAll(Mount_Point + "/system/gatekeeper.pattern.key");
693 ExcludeAll(Mount_Point + "/system/locksettings.db");
694 //ExcludeAll(Mount_Point + "/system/locksettings.db-shm"); // don't seem to need this one, but the other 2 are needed
695 ExcludeAll(Mount_Point + "/system/locksettings.db-wal");
696 //ExcludeAll(Mount_Point + "/user_de");
697 //ExcludeAll(Mount_Point + "/misc/profiles/cur/0"); // might be important later
698 ExcludeAll(Mount_Point + "/misc/gatekeeper");
699 ExcludeAll(Mount_Point + "/misc/keystore");
700 ExcludeAll(Mount_Point + "/drm/kek.dat");
701 ExcludeAll(Mount_Point + "/system_de/0/spblob"); // contains data needed to decrypt pixel 2
702 int retry_count = 3;
703 while (!Decrypt_DE() && --retry_count)
704 usleep(2000);
705 if (retry_count > 0) {
706 property_set("ro.crypto.state", "encrypted");
707 Is_Encrypted = true;
708 Is_Decrypted = false;
709 Is_FBE = true;
710 DataManager::SetValue(TW_IS_FBE, 1);
711 DataManager::SetValue(TW_IS_ENCRYPTED, 1);
712 string filename;
713 int pwd_type = Get_Password_Type(0, filename);
714 if (pwd_type < 0) {
715 LOGERR("This TWRP does not have synthetic password decrypt support\n");
716 pwd_type = 0; // default password
717 }
718 DataManager::SetValue(TW_CRYPTO_PWTYPE, pwd_type);
719 DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
720 DataManager::SetValue("tw_crypto_display", "");
721 return true;
722 }
723#else
724 LOGERR("FBE found but FBE support not present in TWRP\n");
725#endif
726 }
727 return false;
728}
729
Matt Mower72c87ce2016-04-26 14:34:56 -0500730void TWPartition::Setup_Cache_Partition(bool Display_Error __unused) {
731 if (Mount_Point != "/cache")
732 return;
733
734 if (!Mount(true))
735 return;
736
737 if (!TWFunc::Path_Exists("/cache/recovery/.")) {
738 LOGINFO("Recreating /cache/recovery folder\n");
739 if (mkdir("/cache/recovery", S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP) != 0)
740 LOGERR("Could not create /cache/recovery\n");
741 }
742}
743
Matt Mower4ab42b12016-04-21 13:52:18 -0500744void TWPartition::Process_FS_Flags(const char *str) {
745 char *options = strdup(str);
746 char *ptr, *savep;
Hashcode62bd9e02013-11-19 21:59:42 -0800747
Matt Mower4ab42b12016-04-21 13:52:18 -0500748 Mount_Options = "";
Hashcode62bd9e02013-11-19 21:59:42 -0800749
Matt Mower4ab42b12016-04-21 13:52:18 -0500750 // Avoid issues with potentially nested strtok by using strtok_r
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600751 for (ptr = strtok_r(options, ",", &savep); ptr; ptr = strtok_r(NULL, ",", &savep)) {
752 char *equals = strstr(ptr, "=");
753 size_t name_len;
Matt Mower4ab42b12016-04-21 13:52:18 -0500754
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600755 if (!equals)
756 name_len = strlen(ptr);
757 else
758 name_len = equals - ptr;
759
760 // There are some flags that we want to ignore in TWRP
761 bool found_match = false;
762 for (const char** ignored_mount_item = ignored_mount_items; *ignored_mount_item; ignored_mount_item++) {
763 if (strncmp(ptr, *ignored_mount_item, name_len) == 0) {
764 found_match = true;
Hashcode62bd9e02013-11-19 21:59:42 -0800765 break;
766 }
767 }
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600768 if (found_match)
769 continue;
Hashcode62bd9e02013-11-19 21:59:42 -0800770
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600771 // mount_flags are never postfixed by '='
772 if (!equals) {
773 const struct flag_list* mount_flag = mount_flags;
774 for (; mount_flag->name; mount_flag++) {
775 if (strcmp(ptr, mount_flag->name) == 0) {
776 if (mount_flag->flag == MS_RDONLY)
777 Mount_Read_Only = true;
778 else
779 Mount_Flags |= (unsigned)mount_flag->flag;
780 found_match = true;
781 break;
782 }
783 }
784 if (found_match)
785 continue;
Matt Mower4ab42b12016-04-21 13:52:18 -0500786 }
787
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600788 // If we aren't ignoring this flag and it's not a mount flag, then it must be a mount option
789 if (!Mount_Options.empty())
790 Mount_Options += ",";
791 Mount_Options += ptr;
Matt Mower4ab42b12016-04-21 13:52:18 -0500792 }
793 free(options);
Hashcode62bd9e02013-11-19 21:59:42 -0800794}
795
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600796void TWPartition::Save_FS_Flags(const string& local_File_System, int local_Mount_Flags, const string& local_Mount_Options) {
797 partition_fs_flags_struct flags;
798 flags.File_System = local_File_System;
799 flags.Mount_Flags = local_Mount_Flags;
800 flags.Mount_Options = local_Mount_Options;
801 fs_flags.push_back(flags);
802}
803
Matt Mower2416a502016-04-12 19:54:46 -0500804void TWPartition::Apply_TW_Flag(const unsigned flag, const char* str, const bool val) {
805 switch (flag) {
806 case TWFLAG_ANDSEC:
807 Has_Android_Secure = val;
808 break;
809 case TWFLAG_BACKUP:
810 Can_Be_Backed_Up = val;
811 break;
812 case TWFLAG_BACKUPNAME:
813 Backup_Display_Name = str;
814 break;
815 case TWFLAG_BLOCKSIZE:
816 Format_Block_Size = (unsigned long)(atol(str));
817 break;
818 case TWFLAG_CANBEWIPED:
819 Can_Be_Wiped = val;
820 break;
821 case TWFLAG_CANENCRYPTBACKUP:
822 Can_Encrypt_Backup = val;
823 break;
824 case TWFLAG_DEFAULTS:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600825 case TWFLAG_WAIT:
826 case TWFLAG_VERIFY:
827 case TWFLAG_CHECK:
828 case TWFLAG_NOTRIM:
829 case TWFLAG_VOLDMANAGED:
830 case TWFLAG_RESIZE:
Matt Mower2416a502016-04-12 19:54:46 -0500831 // Do nothing
832 break;
833 case TWFLAG_DISPLAY:
834 Display_Name = str;
835 break;
836 case TWFLAG_ENCRYPTABLE:
837 case TWFLAG_FORCEENCRYPT:
838 Crypto_Key_Location = str;
839 break;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500840 case TWFLAG_FILEENCRYPTION:
841 // This flag isn't used by TWRP but is needed in 9.0 FBE decrypt
842 // fileencryption=ice:aes-256-heh
843 {
844 std::string FBE = str;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500845 size_t colon_loc = FBE.find(":");
846 if (colon_loc == std::string::npos) {
Ethan Yonker93382822018-11-01 15:25:31 -0500847 property_set("fbe.contents", FBE.c_str());
848 property_set("fbe.filenames", "");
849 LOGINFO("FBE contents '%s', filenames ''\n", FBE.c_str());
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500850 break;
851 }
Ethan Yonker93382822018-11-01 15:25:31 -0500852 std::string FBE_contents, FBE_filenames;
Ethan Yonkere9afc3d2018-08-30 15:16:27 -0500853 FBE_contents = FBE.substr(0, colon_loc);
854 FBE_filenames = FBE.substr(colon_loc + 1);
855 property_set("fbe.contents", FBE_contents.c_str());
856 property_set("fbe.filenames", FBE_filenames.c_str());
857 LOGINFO("FBE contents '%s', filenames '%s'\n", FBE_contents.c_str(), FBE_filenames.c_str());
858 }
859 break;
Matt Mower2416a502016-04-12 19:54:46 -0500860 case TWFLAG_FLASHIMG:
861 Can_Flash_Img = val;
862 break;
863 case TWFLAG_FSFLAGS:
Matt Mower4ab42b12016-04-21 13:52:18 -0500864 Process_FS_Flags(str);
Matt Mower2416a502016-04-12 19:54:46 -0500865 break;
866 case TWFLAG_IGNOREBLKID:
867 Ignore_Blkid = val;
868 break;
869 case TWFLAG_LENGTH:
870 Length = atoi(str);
871 break;
872 case TWFLAG_MOUNTTODECRYPT:
873 Mount_To_Decrypt = val;
874 break;
875 case TWFLAG_REMOVABLE:
876 Removable = val;
877 break;
878 case TWFLAG_RETAINLAYOUTVERSION:
879 Retain_Layout_Version = val;
880 break;
881 case TWFLAG_SETTINGSSTORAGE:
882 Is_Settings_Storage = val;
883 if (Is_Settings_Storage)
884 Is_Storage = true;
885 break;
886 case TWFLAG_STORAGE:
887 Is_Storage = val;
888 break;
889 case TWFLAG_STORAGENAME:
890 Storage_Name = str;
891 break;
892 case TWFLAG_SUBPARTITIONOF:
893 Is_SubPartition = true;
894 SubPartition_Of = str;
895 break;
896 case TWFLAG_SYMLINK:
897 Symlink_Path = str;
898 break;
899 case TWFLAG_USERDATAENCRYPTBACKUP:
900 Use_Userdata_Encryption = val;
901 if (Use_Userdata_Encryption)
902 Can_Encrypt_Backup = true;
903 break;
904 case TWFLAG_USERMRF:
905 Use_Rm_Rf = val;
906 break;
907 case TWFLAG_WIPEDURINGFACTORYRESET:
908 Wipe_During_Factory_Reset = val;
909 if (Wipe_During_Factory_Reset) {
910 Can_Be_Wiped = true;
911 Wipe_Available_in_GUI = true;
912 }
913 break;
914 case TWFLAG_WIPEINGUI:
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600915 case TWFLAG_FORMATTABLE:
Matt Mower2416a502016-04-12 19:54:46 -0500916 Wipe_Available_in_GUI = val;
917 if (Wipe_Available_in_GUI)
918 Can_Be_Wiped = true;
919 break;
Ethan Yonker1b190162016-12-05 15:25:19 -0600920 case TWFLAG_SLOTSELECT:
921 SlotSelect = true;
922 break;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600923 case TWFLAG_ALTDEVICE:
924 Alternate_Block_Device = str;
925 break;
Ethan Yonker93382822018-11-01 15:25:31 -0500926 case TWFLAG_KEYDIRECTORY:
927 Key_Directory = str;
Matt Mower2416a502016-04-12 19:54:46 -0500928 default:
929 // Should not get here
930 LOGINFO("Flag identified for processing, but later unmatched: %i\n", flag);
931 break;
932 }
933}
Dees_Troy51127312012-09-08 13:08:49 -0400934
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600935void TWPartition::Process_TW_Flags(char *flags, bool Display_Error, int fstab_ver) {
Matt Mower2416a502016-04-12 19:54:46 -0500936 char separator[2] = {'\n', 0};
937 char *ptr, *savep;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600938 char source_separator = ';';
939
940 if (fstab_ver == 2)
941 source_separator = ',';
Matt Mower2416a502016-04-12 19:54:46 -0500942
943 // Semicolons within double-quotes are not forbidden, so replace
944 // only the semicolons intended as separators with '\n' for strtok
945 for (unsigned i = 0, skip = 0; i < strlen(flags); i++) {
946 if (flags[i] == '\"')
Dees_Troya13d74f2013-03-24 08:54:55 -0500947 skip = !skip;
Ethan Yonker6e8c27a2016-12-22 17:55:57 -0600948 if (!skip && flags[i] == source_separator)
Matt Mower2416a502016-04-12 19:54:46 -0500949 flags[i] = separator[0];
Dees_Troy51127312012-09-08 13:08:49 -0400950 }
951
Matt Mower2416a502016-04-12 19:54:46 -0500952 // Avoid issues with potentially nested strtok by using strtok_r
953 ptr = strtok_r(flags, separator, &savep);
954 while (ptr) {
955 int ptr_len = strlen(ptr);
956 const struct flag_list* tw_flag = tw_flags;
Hashcode62bd9e02013-11-19 21:59:42 -0800957
Matt Mower2416a502016-04-12 19:54:46 -0500958 for (; tw_flag->name; tw_flag++) {
959 int flag_len = strlen(tw_flag->name);
960
961 if (strncmp(ptr, tw_flag->name, flag_len) == 0) {
962 bool flag_val = false;
963
964 if (ptr_len > flag_len && (tw_flag->name)[flag_len-1] != '='
965 && ptr[flag_len] != '=') {
966 // Handle flags with same starting string
967 // (e.g. backup and backupname)
968 continue;
969 } else if (ptr_len > flag_len && ptr[flag_len] == '=') {
970 // Handle flags with dual format: Part 1
971 // (e.g. backup and backup=y. backup=y handled here)
972 ptr += flag_len + 1;
973 TWFunc::Strip_Quotes(ptr);
974 // Skip flags with empty argument
975 // (e.g. backup=)
976 if (strlen(ptr) == 0) {
977 LOGINFO("Flag missing argument or should not include '=': %s=\n", tw_flag->name);
978 break;
979 }
980 flag_val = strchr("yY1", *ptr) != NULL;
981 } else if (ptr_len == flag_len
982 && (tw_flag->name)[flag_len-1] == '=') {
983 // Skip flags missing argument after =
984 // (e.g. backupname=)
985 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
986 break;
987 } else if (ptr_len > flag_len
988 && (tw_flag->name)[flag_len-1] == '=') {
989 // Handle arguments to flags
990 // (e.g. backupname="My Stuff")
991 ptr += flag_len;
992 TWFunc::Strip_Quotes(ptr);
993 // Skip flags with empty argument
994 // (e.g. backupname="")
995 if (strlen(ptr) == 0) {
996 LOGINFO("Flag missing argument: %s\n", tw_flag->name);
997 break;
998 }
999 } else if (ptr_len == flag_len) {
1000 // Handle flags with dual format: Part 2
1001 // (e.g. backup and backup=y. backup handled here)
1002 flag_val = true;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001003 } else {
Matt Mower2416a502016-04-12 19:54:46 -05001004 LOGINFO("Flag matched, but could not be processed: %s\n", ptr);
1005 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001006 }
Matt Mower2416a502016-04-12 19:54:46 -05001007
1008 Apply_TW_Flag(tw_flag->flag, ptr, flag_val);
1009 break;
Ethan Yonker96af84a2015-01-05 14:58:36 -06001010 }
Matt Mower2416a502016-04-12 19:54:46 -05001011 }
1012 if (tw_flag->name == 0) {
Dees_Troy51127312012-09-08 13:08:49 -04001013 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001014 LOGERR("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001015 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001016 LOGINFO("Unhandled flag: '%s'\n", ptr);
Dees_Troy51127312012-09-08 13:08:49 -04001017 }
Matt Mower2416a502016-04-12 19:54:46 -05001018 ptr = strtok_r(NULL, separator, &savep);
Dees_Troy51127312012-09-08 13:08:49 -04001019 }
Dees_Troy51a0e822012-09-05 15:24:24 -04001020}
1021
Dees_Troy5bf43922012-09-07 16:07:55 -04001022bool TWPartition::Is_File_System(string File_System) {
1023 if (File_System == "ext2" ||
Dees_Troy63c8df72012-09-10 14:02:05 -04001024 File_System == "ext3" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001025 File_System == "ext4" ||
1026 File_System == "vfat" ||
1027 File_System == "ntfs" ||
1028 File_System == "yaffs2" ||
bigbiff bigbiff3e146522012-11-14 14:32:59 -05001029 File_System == "exfat" ||
Dees_Troye5017042013-08-29 16:38:55 +00001030 File_System == "f2fs" ||
Erfan Abdib859e912019-02-05 18:18:46 +02001031 File_System == "squashfs" ||
Dees_Troy5bf43922012-09-07 16:07:55 -04001032 File_System == "auto")
1033 return true;
1034 else
1035 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001036}
1037
Dees_Troy5bf43922012-09-07 16:07:55 -04001038bool TWPartition::Is_Image(string File_System) {
Dees_Troy5fcd8f92012-10-16 12:22:05 -04001039 if (File_System == "emmc" || File_System == "mtd" || File_System == "bml")
Dees_Troy5bf43922012-09-07 16:07:55 -04001040 return true;
1041 else
1042 return false;
1043}
1044
Dees_Troy51127312012-09-08 13:08:49 -04001045bool TWPartition::Make_Dir(string Path, bool Display_Error) {
Ethan Yonker93ac7a02016-11-07 22:05:58 -06001046 if (TWFunc::Get_D_Type_From_Stat(Path) != S_IFDIR)
1047 unlink(Path.c_str());
Dees_Troy43d8b002012-09-17 16:00:01 -04001048 if (!TWFunc::Path_Exists(Path)) {
Dees_Troy51127312012-09-08 13:08:49 -04001049 if (mkdir(Path.c_str(), 0777) == -1) {
1050 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001051 gui_msg(Msg(msg::kError, "create_folder_strerr=Can not create '{1}' folder ({2}).")(Path)(strerror(errno)));
Dees_Troy51127312012-09-08 13:08:49 -04001052 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001053 LOGINFO("Can not create '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001054 return false;
1055 } else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001056 LOGINFO("Created '%s' folder.\n", Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001057 return true;
1058 }
1059 }
1060 return true;
1061}
1062
Dees_Troy5bf43922012-09-07 16:07:55 -04001063void TWPartition::Setup_File_System(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001064 Can_Be_Mounted = true;
1065 Can_Be_Wiped = true;
1066
Dees_Troy5bf43922012-09-07 16:07:55 -04001067 // Make the mount point folder if it doesn't exist
Dees_Troy51127312012-09-08 13:08:49 -04001068 Make_Dir(Mount_Point, Display_Error);
Dees_Troy5bf43922012-09-07 16:07:55 -04001069 Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
1070 Backup_Name = Display_Name;
bigbiffce8f83c2015-12-12 18:30:21 -05001071 Backup_Method = BM_FILES;
Dees_Troy5bf43922012-09-07 16:07:55 -04001072}
1073
Ethan Yonker1b190162016-12-05 15:25:19 -06001074void TWPartition::Setup_Image() {
Dees_Troy5bf43922012-09-07 16:07:55 -04001075 Display_Name = Mount_Point.substr(1, Mount_Point.size() - 1);
1076 Backup_Name = Display_Name;
Gary Peck82599a82012-11-21 16:23:12 -08001077 if (Current_File_System == "emmc")
bigbiffce8f83c2015-12-12 18:30:21 -05001078 Backup_Method = BM_DD;
Gary Peck82599a82012-11-21 16:23:12 -08001079 else if (Current_File_System == "mtd" || Current_File_System == "bml")
bigbiffce8f83c2015-12-12 18:30:21 -05001080 Backup_Method = BM_FLASH_UTILS;
Dees_Troy5bf43922012-09-07 16:07:55 -04001081 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001082 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 -04001083}
1084
Dees_Troye58d5262012-09-21 12:27:57 -04001085void TWPartition::Setup_AndSec(void) {
Dees_Troya13d74f2013-03-24 08:54:55 -05001086 Backup_Display_Name = "Android Secure";
Dees_Troye58d5262012-09-21 12:27:57 -04001087 Backup_Name = "and-sec";
Dees_Troya13d74f2013-03-24 08:54:55 -05001088 Can_Be_Backed_Up = true;
Dees_Troye58d5262012-09-21 12:27:57 -04001089 Has_Android_Secure = true;
1090 Symlink_Path = Mount_Point + "/.android_secure";
1091 Symlink_Mount_Point = "/and-sec";
1092 Backup_Path = Symlink_Mount_Point;
1093 Make_Dir("/and-sec", true);
1094 Recreate_AndSec_Folder();
Kjell Braden3126a112016-06-19 16:58:15 +00001095 Mount_Storage_Retry(true);
Dees_Troye58d5262012-09-21 12:27:57 -04001096}
1097
that9e0593e2014-10-08 00:01:24 +02001098void TWPartition::Setup_Data_Media() {
Ethan Yonker6277c792014-09-15 14:54:30 -05001099 LOGINFO("Setting up '%s' as data/media emulated storage.\n", Mount_Point.c_str());
Ethan Yonker66a19492015-12-10 10:19:45 -06001100 if (Storage_Name.empty() || Storage_Name == "Data")
1101 Storage_Name = "Internal Storage";
Ethan Yonker6277c792014-09-15 14:54:30 -05001102 Has_Data_Media = true;
1103 Is_Storage = true;
Ethan Yonker66a19492015-12-10 10:19:45 -06001104 Storage_Path = Mount_Point + "/media";
Ethan Yonker6277c792014-09-15 14:54:30 -05001105 Symlink_Path = Storage_Path;
Ethan Yonker66a19492015-12-10 10:19:45 -06001106 if (Mount_Point == "/data") {
1107 Is_Settings_Storage = true;
1108 if (strcmp(EXPAND(TW_EXTERNAL_STORAGE_PATH), "/sdcard") == 0) {
1109 Make_Dir("/emmc", false);
1110 Symlink_Mount_Point = "/emmc";
1111 } else {
1112 Make_Dir("/sdcard", false);
1113 Symlink_Mount_Point = "/sdcard";
1114 }
1115 if (Mount(false) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1116 Storage_Path = Mount_Point + "/media/0";
1117 Symlink_Path = Storage_Path;
1118 DataManager::SetValue(TW_INTERNAL_PATH, Mount_Point + "/media/0");
1119 UnMount(true);
1120 }
1121 DataManager::SetValue("tw_has_internal", 1);
1122 DataManager::SetValue("tw_has_data_media", 1);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06001123 backup_exclusions.add_absolute_dir("/data/data/com.google.android.music/files");
Ethan Yonker6355b562017-05-01 09:42:17 -05001124 wipe_exclusions.add_absolute_dir(Mount_Point + "/misc/vold"); // adopted storage keys
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001125 ExcludeAll(Mount_Point + "/.layout_version");
1126 ExcludeAll(Mount_Point + "/system/storage.xml");
Ethan Yonker6277c792014-09-15 14:54:30 -05001127 } else {
Ethan Yonker66a19492015-12-10 10:19:45 -06001128 if (Mount(true) && TWFunc::Path_Exists(Mount_Point + "/media/0")) {
1129 Storage_Path = Mount_Point + "/media/0";
1130 Symlink_Path = Storage_Path;
1131 UnMount(true);
1132 }
Ethan Yonker6277c792014-09-15 14:54:30 -05001133 }
Ethan Yonker79f88bd2016-12-09 14:52:12 -06001134 ExcludeAll(Mount_Point + "/media");
Ethan Yonker6277c792014-09-15 14:54:30 -05001135}
1136
Dees_Troy5bf43922012-09-07 16:07:55 -04001137void TWPartition::Find_Real_Block_Device(string& Block, bool Display_Error) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06001138 char device[PATH_MAX], realDevice[PATH_MAX];
Dees_Troy5bf43922012-09-07 16:07:55 -04001139
1140 strcpy(device, Block.c_str());
1141 memset(realDevice, 0, sizeof(realDevice));
1142 while (readlink(device, realDevice, sizeof(realDevice)) > 0)
1143 {
1144 strcpy(device, realDevice);
1145 memset(realDevice, 0, sizeof(realDevice));
1146 }
1147
1148 if (device[0] != '/') {
1149 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001150 LOGERR("Invalid symlink path '%s' found on block device '%s'\n", device, Block.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001151 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001152 LOGINFO("Invalid symlink path '%s' found on block device '%s'\n", device, Block.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001153 return;
Dees_Troy51a0e822012-09-05 15:24:24 -04001154 } else {
Dees_Troy5bf43922012-09-07 16:07:55 -04001155 Block = device;
1156 return;
1157 }
1158}
1159
Kjell Braden3126a112016-06-19 16:58:15 +00001160bool TWPartition::Mount_Storage_Retry(bool Display_Error) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001161 // On some devices, storage doesn't want to mount right away, retry and sleep
Kjell Braden3126a112016-06-19 16:58:15 +00001162 if (!Mount(Display_Error)) {
Dees_Troy8e337f32012-10-13 22:07:49 -04001163 int retry_count = 5;
1164 while (retry_count > 0 && !Mount(false)) {
1165 usleep(500000);
1166 retry_count--;
1167 }
Kjell Braden3126a112016-06-19 16:58:15 +00001168 return Mount(Display_Error);
Dees_Troy8e337f32012-10-13 22:07:49 -04001169 }
Kjell Braden3126a112016-06-19 16:58:15 +00001170 return true;
Dees_Troy8e337f32012-10-13 22:07:49 -04001171}
1172
Dees_Troy38bd7602012-09-14 13:33:53 -04001173bool TWPartition::Find_MTD_Block_Device(string MTD_Name) {
1174 FILE *fp = NULL;
1175 char line[255];
1176
1177 fp = fopen("/proc/mtd", "rt");
1178 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001179 LOGERR("Device does not support /proc/mtd\n");
Dees_Troy38bd7602012-09-14 13:33:53 -04001180 return false;
1181 }
1182
1183 while (fgets(line, sizeof(line), fp) != NULL)
1184 {
1185 char device[32], label[32];
1186 unsigned long size = 0;
Dees_Troy38bd7602012-09-14 13:33:53 -04001187 int deviceId;
1188
1189 sscanf(line, "%s %lx %*s %*c%s", device, &size, label);
1190
1191 // Skip header and blank lines
1192 if ((strcmp(device, "dev:") == 0) || (strlen(line) < 8))
1193 continue;
1194
1195 // Strip off the trailing " from the label
1196 label[strlen(label)-1] = '\0';
1197
1198 if (strcmp(label, MTD_Name.c_str()) == 0) {
1199 // We found our device
1200 // Strip off the trailing : from the device
1201 device[strlen(device)-1] = '\0';
1202 if (sscanf(device,"mtd%d", &deviceId) == 1) {
1203 sprintf(device, "/dev/block/mtdblock%d", deviceId);
1204 Primary_Block_Device = device;
Dees_Troy76543db2013-06-19 16:24:30 +00001205 fclose(fp);
1206 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04001207 }
1208 }
1209 }
1210 fclose(fp);
1211
1212 return false;
1213}
1214
Dees_Troy51127312012-09-08 13:08:49 -04001215bool TWPartition::Get_Size_Via_statfs(bool Display_Error) {
1216 struct statfs st;
1217 string Local_Path = Mount_Point + "/.";
1218
1219 if (!Mount(Display_Error))
1220 return false;
1221
1222 if (statfs(Local_Path.c_str(), &st) != 0) {
1223 if (!Removable) {
1224 if (Display_Error)
Dees_Troy2673cec2013-04-02 20:22:16 +00001225 LOGERR("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001226 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001227 LOGINFO("Unable to statfs '%s'\n", Local_Path.c_str());
Dees_Troy51127312012-09-08 13:08:49 -04001228 }
1229 return false;
1230 }
1231 Size = (st.f_blocks * st.f_bsize);
1232 Used = ((st.f_blocks - st.f_bfree) * st.f_bsize);
1233 Free = (st.f_bfree * st.f_bsize);
1234 Backup_Size = Used;
1235 return true;
1236}
1237
1238bool TWPartition::Get_Size_Via_df(bool Display_Error) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001239 FILE* fp;
1240 char command[255], line[512];
1241 int include_block = 1;
1242 unsigned int min_len;
1243
1244 if (!Mount(Display_Error))
1245 return false;
1246
Dees_Troy38bd7602012-09-14 13:33:53 -04001247 min_len = Actual_Block_Device.size() + 2;
Dees_Troy51127312012-09-08 13:08:49 -04001248 sprintf(command, "df %s > /tmp/dfoutput.txt", Mount_Point.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02001249 TWFunc::Exec_Cmd(command);
Dees_Troy51127312012-09-08 13:08:49 -04001250 fp = fopen("/tmp/dfoutput.txt", "rt");
1251 if (fp == NULL) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001252 LOGINFO("Unable to open /tmp/dfoutput.txt.\n");
Dees_Troy5bf43922012-09-07 16:07:55 -04001253 return false;
Dees_Troy51127312012-09-08 13:08:49 -04001254 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001255
1256 while (fgets(line, sizeof(line), fp) != NULL)
1257 {
1258 unsigned long blocks, used, available;
1259 char device[64];
1260 char tmpString[64];
1261
1262 if (strncmp(line, "Filesystem", 10) == 0)
1263 continue;
1264 if (strlen(line) < min_len) {
1265 include_block = 0;
1266 continue;
1267 }
1268 if (include_block) {
1269 sscanf(line, "%s %lu %lu %lu", device, &blocks, &used, &available);
1270 } else {
1271 // The device block string is so long that the df information is on the next line
1272 int space_count = 0;
Dees_Troye58d5262012-09-21 12:27:57 -04001273 sprintf(tmpString, "/dev/block/%s", Actual_Block_Device.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001274 while (tmpString[space_count] == 32)
1275 space_count++;
1276 sscanf(line + space_count, "%lu %lu %lu", &blocks, &used, &available);
1277 }
1278
1279 // Adjust block size to byte size
1280 Size = blocks * 1024ULL;
1281 Used = used * 1024ULL;
1282 Free = available * 1024ULL;
1283 Backup_Size = Used;
1284 }
1285 fclose(fp);
1286 return true;
1287}
1288
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001289unsigned long long TWPartition::IOCTL_Get_Block_Size() {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001290 Find_Actual_Block_Device();
Ethan Yonker483e9f42016-01-11 22:21:18 -06001291
1292 return TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001293}
1294
Dees_Troy5bf43922012-09-07 16:07:55 -04001295bool TWPartition::Find_Partition_Size(void) {
1296 FILE* fp;
1297 char line[512];
1298 string tmpdevice;
1299
igoriok87e3d932013-01-31 21:03:53 +02001300 fp = fopen("/proc/dumchar_info", "rt");
1301 if (fp != NULL) {
1302 while (fgets(line, sizeof(line), fp) != NULL)
1303 {
1304 char label[32], device[32];
1305 unsigned long size = 0;
1306
thatd43bf2d2014-09-21 23:13:02 +02001307 sscanf(line, "%s %lx %*x %*u %s", label, &size, device);
igoriok87e3d932013-01-31 21:03:53 +02001308
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05001309 // Skip header, annotation and blank lines
igoriok87e3d932013-01-31 21:03:53 +02001310 if ((strncmp(device, "/dev/", 5) != 0) || (strlen(line) < 8))
1311 continue;
1312
1313 tmpdevice = "/dev/";
1314 tmpdevice += label;
1315 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
1316 Size = size;
1317 fclose(fp);
1318 return true;
1319 }
1320 }
1321 }
1322
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001323 unsigned long long ioctl_size = IOCTL_Get_Block_Size();
1324 if (ioctl_size) {
1325 Size = ioctl_size;
1326 return true;
1327 }
1328
Dees_Troy5bf43922012-09-07 16:07:55 -04001329 // In this case, we'll first get the partitions we care about (with labels)
1330 fp = fopen("/proc/partitions", "rt");
1331 if (fp == NULL)
1332 return false;
1333
1334 while (fgets(line, sizeof(line), fp) != NULL)
1335 {
1336 unsigned long major, minor, blocks;
1337 char device[512];
Dees_Troy5bf43922012-09-07 16:07:55 -04001338
Dees_Troy63c8df72012-09-10 14:02:05 -04001339 if (strlen(line) < 7 || line[0] == 'm') continue;
Dees_Troy5bf43922012-09-07 16:07:55 -04001340 sscanf(line + 1, "%lu %lu %lu %s", &major, &minor, &blocks, device);
1341
1342 tmpdevice = "/dev/block/";
1343 tmpdevice += device;
Dees_Troy38bd7602012-09-14 13:33:53 -04001344 if (tmpdevice == Primary_Block_Device || tmpdevice == Alternate_Block_Device) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001345 // Adjust block size to byte size
1346 Size = blocks * 1024ULL;
1347 fclose(fp);
1348 return true;
1349 }
1350 }
1351 fclose(fp);
1352 return false;
1353}
1354
Dees_Troy5bf43922012-09-07 16:07:55 -04001355bool TWPartition::Is_Mounted(void) {
1356 if (!Can_Be_Mounted)
1357 return false;
1358
1359 struct stat st1, st2;
1360 string test_path;
1361
1362 // Check to see if the mount point directory exists
1363 test_path = Mount_Point + "/.";
1364 if (stat(test_path.c_str(), &st1) != 0) return false;
1365
1366 // Check to see if the directory above the mount point exists
1367 test_path = Mount_Point + "/../.";
1368 if (stat(test_path.c_str(), &st2) != 0) return false;
1369
1370 // Compare the device IDs -- if they match then we're (probably) using tmpfs instead of an actual device
1371 int ret = (st1.st_dev != st2.st_dev) ? true : false;
1372
1373 return ret;
1374}
1375
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001376bool TWPartition::Is_File_System_Writable(void) {
1377 if (!Is_File_System(Current_File_System) || !Is_Mounted())
1378 return false;
1379
1380 string test_path = Mount_Point + "/.";
1381 return (access(test_path.c_str(), W_OK) == 0);
1382}
1383
Dees_Troy5bf43922012-09-07 16:07:55 -04001384bool TWPartition::Mount(bool Display_Error) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001385 int exfat_mounted = 0;
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001386 unsigned long flags = Mount_Flags;
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001387
Dees_Troy5bf43922012-09-07 16:07:55 -04001388 if (Is_Mounted()) {
1389 return true;
1390 } else if (!Can_Be_Mounted) {
1391 return false;
1392 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001393
1394 Find_Actual_Block_Device();
1395
1396 // Check the current file system before mounting
1397 Check_FS_Type();
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001398 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sbin/exfat-fuse")) {
Dees_Troye34c1332013-02-06 19:13:00 +00001399 string cmd = "/sbin/exfat-fuse -o big_writes,max_read=131072,max_write=131072 " + Actual_Block_Device + " " + Mount_Point;
Dees_Troy2673cec2013-04-02 20:22:16 +00001400 LOGINFO("cmd: %s\n", cmd.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001401 string result;
1402 if (TWFunc::Exec_Cmd(cmd, result) != 0) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001403 LOGINFO("exfat-fuse failed to mount with result '%s', trying vfat\n", result.c_str());
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001404 Current_File_System = "vfat";
1405 } else {
1406#ifdef TW_NO_EXFAT_FUSE
1407 UnMount(false);
1408 // We'll let the kernel handle it but using exfat-fuse to detect if the file system is actually exfat
1409 // Some kernels let us mount vfat as exfat which doesn't work out too well
1410#else
1411 exfat_mounted = 1;
1412#endif
1413 }
1414 }
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001415
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001416 if (Current_File_System == "ntfs" && (TWFunc::Path_Exists("/sbin/ntfs-3g") || TWFunc::Path_Exists("/sbin/mount.ntfs"))) {
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001417 string cmd;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001418 string Ntfsmount_Binary = "";
1419
1420 if (TWFunc::Path_Exists("/sbin/ntfs-3g"))
1421 Ntfsmount_Binary = "ntfs-3g";
1422 else if (TWFunc::Path_Exists("/sbin/mount.ntfs"))
1423 Ntfsmount_Binary = "mount.ntfs";
1424
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001425 if (Mount_Read_Only)
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001426 cmd = "/sbin/" + Ntfsmount_Binary + " -o ro " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001427 else
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001428 cmd = "/sbin/" + Ntfsmount_Binary + " " + Actual_Block_Device + " " + Mount_Point;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001429 LOGINFO("cmd: '%s'\n", cmd.c_str());
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001430
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001431 if (TWFunc::Exec_Cmd(cmd) == 0) {
1432 return true;
1433 } else {
1434 LOGINFO("ntfs-3g failed to mount, trying regular mount method.\n");
1435 }
1436 }
1437
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001438 if (Mount_Read_Only)
1439 flags |= MS_RDONLY;
1440
Dees_Troy22042032012-12-18 21:23:08 +00001441 if (Fstab_File_System == "yaffs2") {
1442 // mount an MTD partition as a YAFFS2 filesystem.
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001443 flags = MS_NOATIME | MS_NODEV | MS_NODIRATIME;
1444 if (Mount_Read_Only)
1445 flags |= MS_RDONLY;
Dees_Troy76543db2013-06-19 16:24:30 +00001446 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags, NULL) < 0) {
1447 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), Fstab_File_System.c_str(), flags | MS_RDONLY, NULL) < 0) {
1448 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001449 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001450 else
1451 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1452 return false;
1453 } else {
1454 LOGINFO("Mounted '%s' (MTD) as RO\n", Mount_Point.c_str());
1455 return true;
1456 }
1457 } else {
1458 struct stat st;
1459 string test_path = Mount_Point;
1460 if (stat(test_path.c_str(), &st) < 0) {
1461 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001462 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy76543db2013-06-19 16:24:30 +00001463 else
1464 LOGINFO("Failed to mount '%s' (MTD)\n", Mount_Point.c_str());
1465 return false;
1466 }
1467 mode_t new_mode = st.st_mode | S_IXUSR | S_IXGRP | S_IXOTH;
1468 if (new_mode != st.st_mode) {
1469 LOGINFO("Fixing execute permissions for %s\n", Mount_Point.c_str());
1470 if (chmod(Mount_Point.c_str(), new_mode) < 0) {
1471 if (Display_Error)
1472 LOGERR("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1473 else
1474 LOGINFO("Couldn't fix permissions for %s: %s\n", Mount_Point.c_str(), strerror(errno));
1475 return false;
1476 }
1477 }
Dees_Troy22042032012-12-18 21:23:08 +00001478 return true;
Dees_Troy76543db2013-06-19 16:24:30 +00001479 }
thatc7572eb2015-03-31 18:55:30 +02001480 }
1481
1482 string mount_fs = Current_File_System;
1483 if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sys/module/texfat"))
1484 mount_fs = "texfat";
1485
1486 if (!exfat_mounted &&
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001487 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, Mount_Options.c_str()) != 0 &&
1488 mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), mount_fs.c_str(), flags, NULL) != 0) {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001489#ifdef TW_NO_EXFAT_FUSE
1490 if (Current_File_System == "exfat") {
Dees_Troy2673cec2013-04-02 20:22:16 +00001491 LOGINFO("Mounting exfat failed, trying vfat...\n");
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001492 if (mount(Actual_Block_Device.c_str(), Mount_Point.c_str(), "vfat", 0, NULL) != 0) {
Dees_Troy85f44ed2013-01-09 18:42:36 +00001493 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001494 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy85f44ed2013-01-09 18:42:36 +00001495 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001496 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05001497 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 +00001498 return false;
Dees_Troy85f44ed2013-01-09 18:42:36 +00001499 }
Dees_Troyb05ddee2013-01-28 20:24:50 +00001500 } else {
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001501#endif
bigbiff bigbiff26774a02014-03-29 18:22:00 -04001502 if (!Removable && Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001503 gui_msg(Msg(msg::kError, "fail_mount=Failed to mount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001504 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001505 LOGINFO("Unable to mount '%s'\n", Mount_Point.c_str());
1506 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 +00001507 return false;
1508#ifdef TW_NO_EXFAT_FUSE
Dees_Troy85f44ed2013-01-09 18:42:36 +00001509 }
1510#endif
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001511 }
Ethan Yonker253368a2014-11-25 15:00:52 -06001512
Dees_Troy3f5c4e82013-02-01 15:16:59 +00001513 if (Removable)
1514 Update_Size(Display_Error);
1515
xiaolu9416f4f2015-06-04 08:22:23 +08001516 if (!Symlink_Mount_Point.empty() && TWFunc::Path_Exists(Symlink_Path)) {
codelover2a3d4ce2015-03-14 20:26:49 +08001517 string Command = "mount -o bind '" + Symlink_Path + "' '" + Symlink_Mount_Point + "'";
Vojtech Bocek05534202013-09-11 08:11:56 +02001518 TWFunc::Exec_Cmd(Command);
Dees_Troy5bf43922012-09-07 16:07:55 -04001519 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001520 return true;
1521}
1522
1523bool TWPartition::UnMount(bool Display_Error) {
1524 if (Is_Mounted()) {
1525 int never_unmount_system;
1526
1527 DataManager::GetValue(TW_DONT_UNMOUNT_SYSTEM, never_unmount_system);
Captain Throwback9d6feb52018-07-27 10:05:24 -04001528 if (never_unmount_system == 1 && Mount_Point == PartitionManager.Get_Android_Root_Path())
Dees_Troy5bf43922012-09-07 16:07:55 -04001529 return true; // Never unmount system if you're not supposed to unmount it
1530
Matt Mowera8e6d832017-02-14 20:20:59 -06001531 if (Is_Storage && MTP_Storage_ID > 0)
Ethan Yonker726a0202014-12-16 20:01:38 -06001532 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001533
Dees_Troy38bd7602012-09-14 13:33:53 -04001534 if (!Symlink_Mount_Point.empty())
1535 umount(Symlink_Mount_Point.c_str());
1536
Dees_Troyb05ddee2013-01-28 20:24:50 +00001537 umount(Mount_Point.c_str());
1538 if (Is_Mounted()) {
Dees_Troy5bf43922012-09-07 16:07:55 -04001539 if (Display_Error)
Ethan Yonker74db1572015-10-28 12:44:49 -05001540 gui_msg(Msg(msg::kError, "fail_unmount=Failed to unmount '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy5bf43922012-09-07 16:07:55 -04001541 else
Dees_Troy2673cec2013-04-02 20:22:16 +00001542 LOGINFO("Unable to unmount '%s'\n", Mount_Point.c_str());
Dees_Troy5bf43922012-09-07 16:07:55 -04001543 return false;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001544 } else {
Dees_Troy5bf43922012-09-07 16:07:55 -04001545 return true;
bigbiff bigbiffc7eee6f2014-09-02 18:59:01 -04001546 }
Dees_Troy5bf43922012-09-07 16:07:55 -04001547 } else {
1548 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04001549 }
1550}
1551
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05001552bool TWPartition::ReMount(bool Display_Error) {
1553 if (UnMount(Display_Error))
1554 return Mount(Display_Error);
1555 return false;
1556}
1557
1558bool TWPartition::ReMount_RW(bool Display_Error) {
1559 // No need to remount if already mounted rw
1560 if (Is_File_System_Writable())
1561 return true;
1562
1563 bool ro = Mount_Read_Only;
1564 int flags = Mount_Flags;
1565
1566 Mount_Read_Only = false;
1567 Mount_Flags &= ~MS_RDONLY;
1568
1569 bool ret = ReMount(Display_Error);
1570
1571 Mount_Read_Only = ro;
1572 Mount_Flags = flags;
1573
1574 return ret;
1575}
1576
Gary Peck43acadf2012-11-21 21:19:01 -08001577bool TWPartition::Wipe(string New_File_System) {
Ethan Yonker726a0202014-12-16 20:01:38 -06001578 bool wiped = false, update_crypt = false, recreate_media = true;
Dees_Troy16c2b312013-01-15 16:51:18 +00001579 int check;
1580 string Layout_Filename = Mount_Point + "/.layout_version";
1581
Dees_Troy38bd7602012-09-14 13:33:53 -04001582 if (!Can_Be_Wiped) {
Matt Mower3c366972015-12-25 19:28:31 -06001583 gui_msg(Msg(msg::kError, "cannot_wipe=Partition {1} cannot be wiped.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04001584 return false;
1585 }
1586
Dees_Troyc51f1f92012-09-20 15:32:13 -04001587 if (Mount_Point == "/cache")
Dees_Troy2673cec2013-04-02 20:22:16 +00001588 Log_Offset = 0;
Dees_Troyc51f1f92012-09-20 15:32:13 -04001589
Dees_Troy16c2b312013-01-15 16:51:18 +00001590 if (Retain_Layout_Version && Mount(false) && TWFunc::Path_Exists(Layout_Filename))
1591 TWFunc::copy_file(Layout_Filename, "/.layout_version", 0600);
1592 else
1593 unlink("/.layout_version");
Dees_Troy38bd7602012-09-14 13:33:53 -04001594
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001595 if (Has_Data_Media && Current_File_System == New_File_System) {
Dees_Troy16c2b312013-01-15 16:51:18 +00001596 wiped = Wipe_Data_Without_Wiping_Media();
Ethan Yonker5eac2222014-06-11 12:22:55 -05001597 recreate_media = false;
Dees_Troy16c2b312013-01-15 16:51:18 +00001598 } else {
Dees_Troy16c2b312013-01-15 16:51:18 +00001599 DataManager::GetValue(TW_RM_RF_VAR, check);
1600
Hashcodedabfd492013-08-29 22:45:30 -07001601 if (check || Use_Rm_Rf)
Dees_Troy16c2b312013-01-15 16:51:18 +00001602 wiped = Wipe_RMRF();
1603 else if (New_File_System == "ext4")
1604 wiped = Wipe_EXT4();
1605 else if (New_File_System == "ext2" || New_File_System == "ext3")
dianlujitao4879b372018-12-03 18:45:47 +08001606 wiped = Wipe_EXTFS(New_File_System);
Dees_Troy16c2b312013-01-15 16:51:18 +00001607 else if (New_File_System == "vfat")
1608 wiped = Wipe_FAT();
1609 else if (New_File_System == "exfat")
1610 wiped = Wipe_EXFAT();
1611 else if (New_File_System == "yaffs2")
1612 wiped = Wipe_MTD();
Dees_Troye5017042013-08-29 16:38:55 +00001613 else if (New_File_System == "f2fs")
1614 wiped = Wipe_F2FS();
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001615 else if (New_File_System == "ntfs")
1616 wiped = Wipe_NTFS();
Dees_Troy16c2b312013-01-15 16:51:18 +00001617 else {
Dees_Troy2673cec2013-04-02 20:22:16 +00001618 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 +00001619 unlink("/.layout_version");
1620 return false;
1621 }
1622 update_crypt = wiped;
Gary Pecke8bc5d72012-12-21 06:45:25 -08001623 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001624
Gary Pecke8bc5d72012-12-21 06:45:25 -08001625 if (wiped) {
Dees_Troy1c1ac442013-01-17 21:42:14 +00001626 if (Mount_Point == "/cache")
1627 DataManager::Output_Version();
1628
Dees_Troy16c2b312013-01-15 16:51:18 +00001629 if (TWFunc::Path_Exists("/.layout_version") && Mount(false))
1630 TWFunc::copy_file("/.layout_version", Layout_Filename, 0600);
1631
1632 if (update_crypt) {
1633 Setup_File_System(false);
1634 if (Is_Encrypted && !Is_Decrypted) {
1635 // just wiped an encrypted partition back to its unencrypted state
1636 Is_Encrypted = false;
1637 Is_Decrypted = false;
1638 Decrypted_Block_Device = "";
1639 if (Mount_Point == "/data") {
1640 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
1641 DataManager::SetValue(TW_IS_DECRYPTED, 0);
1642 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08001643 }
1644 }
Ethan Yonker5eac2222014-06-11 12:22:55 -05001645
Ethan Yonker66a19492015-12-10 10:19:45 -06001646 if (Has_Data_Media && recreate_media) {
Ethan Yonker5eac2222014-06-11 12:22:55 -05001647 Recreate_Media_Folder();
1648 }
Matt Mower209c9632016-01-20 12:08:35 -06001649 if (Is_Storage && Mount(false))
1650 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Gary Pecke8bc5d72012-12-21 06:45:25 -08001651 }
Matt Mower209c9632016-01-20 12:08:35 -06001652
Gary Pecke8bc5d72012-12-21 06:45:25 -08001653 return wiped;
Dees_Troy51a0e822012-09-05 15:24:24 -04001654}
1655
Gary Peck43acadf2012-11-21 21:19:01 -08001656bool TWPartition::Wipe() {
Gary Peck82599a82012-11-21 16:23:12 -08001657 if (Is_File_System(Current_File_System))
1658 return Wipe(Current_File_System);
1659 else
1660 return Wipe(Fstab_File_System);
Gary Peck43acadf2012-11-21 21:19:01 -08001661}
1662
Dees_Troye58d5262012-09-21 12:27:57 -04001663bool TWPartition::Wipe_AndSec(void) {
1664 if (!Has_Android_Secure)
1665 return false;
1666
Dees_Troye58d5262012-09-21 12:27:57 -04001667 if (!Mount(true))
1668 return false;
1669
Ethan Yonker74db1572015-10-28 12:44:49 -05001670 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05001671 TWFunc::removeDir(Mount_Point + "/.android_secure/", true);
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02001672 return true;
Dees_Troye58d5262012-09-21 12:27:57 -04001673}
1674
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001675bool TWPartition::Can_Repair() {
Ethan Yonkera2719152015-05-28 09:44:41 -05001676 if (Mount_Read_Only)
1677 return false;
Matt Mower18794c82015-11-11 16:22:45 -06001678 if (Current_File_System == "vfat" && TWFunc::Path_Exists("/sbin/fsck.fat"))
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001679 return true;
1680 else if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/sbin/e2fsck"))
1681 return true;
1682 else if (Current_File_System == "exfat" && TWFunc::Path_Exists("/sbin/fsck.exfat"))
1683 return true;
1684 else if (Current_File_System == "f2fs" && TWFunc::Path_Exists("/sbin/fsck.f2fs"))
1685 return true;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001686 else if (Current_File_System == "ntfs" && (TWFunc::Path_Exists("/sbin/ntfsfix") || TWFunc::Path_Exists("/sbin/fsck.ntfs")))
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001687 return true;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001688 return false;
1689}
1690
1691bool TWPartition::Repair() {
1692 string command;
1693
1694 if (Current_File_System == "vfat") {
Matt Mower18794c82015-11-11 16:22:45 -06001695 if (!TWFunc::Path_Exists("/sbin/fsck.fat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001696 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001697 return false;
1698 }
1699 if (!UnMount(true))
1700 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001701 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.fat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001702 Find_Actual_Block_Device();
Matt Mower18794c82015-11-11 16:22:45 -06001703 command = "/sbin/fsck.fat -y " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001704 LOGINFO("Repair command: %s\n", command.c_str());
1705 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001706 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001707 return true;
1708 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001709 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001710 return false;
1711 }
1712 }
1713 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
1714 if (!TWFunc::Path_Exists("/sbin/e2fsck")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001715 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001716 return false;
1717 }
1718 if (!UnMount(true))
1719 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001720 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("e2fsck"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001721 Find_Actual_Block_Device();
Ethan Yonkera2719152015-05-28 09:44:41 -05001722 command = "/sbin/e2fsck -fp " + Actual_Block_Device;
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001723 LOGINFO("Repair command: %s\n", command.c_str());
1724 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001725 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001726 return true;
1727 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001728 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001729 return false;
1730 }
1731 }
1732 if (Current_File_System == "exfat") {
1733 if (!TWFunc::Path_Exists("/sbin/fsck.exfat")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001734 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001735 return false;
1736 }
1737 if (!UnMount(true))
1738 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001739 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.exfat"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001740 Find_Actual_Block_Device();
1741 command = "/sbin/fsck.exfat " + Actual_Block_Device;
1742 LOGINFO("Repair command: %s\n", command.c_str());
1743 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001744 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001745 return true;
1746 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001747 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001748 return false;
1749 }
1750 }
1751 if (Current_File_System == "f2fs") {
1752 if (!TWFunc::Path_Exists("/sbin/fsck.f2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001753 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001754 return false;
1755 }
1756 if (!UnMount(true))
1757 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001758 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)("fsck.f2fs"));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001759 Find_Actual_Block_Device();
1760 command = "/sbin/fsck.f2fs " + Actual_Block_Device;
1761 LOGINFO("Repair command: %s\n", command.c_str());
1762 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001763 gui_msg("done=Done.");
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001764 return true;
1765 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001766 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001767 return false;
1768 }
1769 }
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001770 if (Current_File_System == "ntfs") {
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001771 string Ntfsfix_Binary;
1772 if (TWFunc::Path_Exists("/sbin/ntfsfix"))
1773 Ntfsfix_Binary = "ntfsfix";
1774 else if (TWFunc::Path_Exists("/sbin/fsck.ntfs"))
1775 Ntfsfix_Binary = "fsck.ntfs";
1776 else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001777 gui_msg(Msg(msg::kError, "repair_not_exist={1} does not exist! Cannot repair!")("ntfsfix"));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001778 return false;
1779 }
1780 if (!UnMount(true))
1781 return false;
Greg Wallace2d653402015-12-29 14:19:21 -05001782 gui_msg(Msg("repairing_using=Repairing {1} using {2}...")(Display_Name)(Ntfsfix_Binary));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001783 Find_Actual_Block_Device();
Greg Wallaceb39e6c62015-12-29 00:55:26 -05001784 command = "/sbin/" + Ntfsfix_Binary + " " + Actual_Block_Device;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001785 LOGINFO("Repair command: %s\n", command.c_str());
1786 if (TWFunc::Exec_Cmd(command) == 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001787 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001788 return true;
1789 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05001790 gui_msg(Msg(msg::kError, "unable_repair=Unable to repair {1}.")(Display_Name));
Ethan Yonkerb81d9052015-07-09 13:20:53 -05001791 return false;
1792 }
1793 }
Ethan Yonker87c7bac2014-05-25 21:41:08 -05001794 return false;
1795}
1796
Ethan Yonkera2719152015-05-28 09:44:41 -05001797bool TWPartition::Can_Resize() {
1798 if (Mount_Read_Only)
1799 return false;
1800 if ((Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") && TWFunc::Path_Exists("/sbin/resize2fs"))
1801 return true;
1802 return false;
1803}
1804
1805bool TWPartition::Resize() {
1806 string command;
1807
1808 if (Current_File_System == "ext2" || Current_File_System == "ext3" || Current_File_System == "ext4") {
1809 if (!Can_Repair()) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001810 LOGINFO("Cannot resize %s because %s cannot be repaired before resizing.\n", Display_Name.c_str(), Display_Name.c_str());
1811 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001812 return false;
1813 }
1814 if (!TWFunc::Path_Exists("/sbin/resize2fs")) {
Ethan Yonker74db1572015-10-28 12:44:49 -05001815 LOGINFO("resize2fs does not exist! Cannot resize!\n");
1816 gui_msg(Msg(msg::kError, "cannot_resize=Cannot resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001817 return false;
1818 }
1819 // Repair will unmount so no need to do it twice
Ethan Yonker74db1572015-10-28 12:44:49 -05001820 gui_msg(Msg("repair_resize=Repairing {1} before resizing.")( Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001821 if (!Repair())
1822 return false;
Ethan Yonker74db1572015-10-28 12:44:49 -05001823 gui_msg(Msg("resizing=Resizing {1} using {2}...")(Display_Name)("resize2fs"));
Ethan Yonkera2719152015-05-28 09:44:41 -05001824 Find_Actual_Block_Device();
1825 command = "/sbin/resize2fs " + Actual_Block_Device;
1826 if (Length != 0) {
Ethan Yonkerd18a8212015-12-14 10:17:00 -06001827 unsigned long long Actual_Size = IOCTL_Get_Block_Size();
1828 if (Actual_Size == 0)
1829 return false;
Ethan Yonkera2719152015-05-28 09:44:41 -05001830
Ethan Yonkera2719152015-05-28 09:44:41 -05001831 unsigned long long Block_Count;
1832 if (Length < 0) {
1833 // Reduce overall size by this length
1834 Block_Count = (Actual_Size / 1024LLU) - ((unsigned long long)(Length * -1) / 1024LLU);
1835 } else {
1836 // This is the size, not a size reduction
1837 Block_Count = ((unsigned long long)(Length) / 1024LLU);
1838 }
1839 char temp[256];
1840 sprintf(temp, "%llu", Block_Count);
1841 command += " ";
1842 command += temp;
1843 command += "K";
1844 }
1845 LOGINFO("Resize command: %s\n", command.c_str());
1846 if (TWFunc::Exec_Cmd(command) == 0) {
1847 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001848 gui_msg("done=Done.");
Ethan Yonkera2719152015-05-28 09:44:41 -05001849 return true;
1850 } else {
1851 Update_Size(true);
Ethan Yonker74db1572015-10-28 12:44:49 -05001852 gui_msg(Msg(msg::kError, "unable_resize=Unable to resize {1}.")(Display_Name));
Ethan Yonkera2719152015-05-28 09:44:41 -05001853 return false;
1854 }
1855 }
1856 return false;
1857}
1858
bigbiffce8f83c2015-12-12 18:30:21 -05001859bool TWPartition::Backup(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
1860 if (Backup_Method == BM_FILES)
1861 return Backup_Tar(part_settings, tar_fork_pid);
1862 else if (Backup_Method == BM_DD)
1863 return Backup_Image(part_settings);
1864 else if (Backup_Method == BM_FLASH_UTILS)
1865 return Backup_Dump_Image(part_settings);
Dees_Troy2673cec2013-04-02 20:22:16 +00001866 LOGERR("Unknown backup method for '%s'\n", Mount_Point.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04001867 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04001868}
1869
bigbiffce8f83c2015-12-12 18:30:21 -05001870bool TWPartition::Restore(PartitionSettings *part_settings) {
Matt Mower3c366972015-12-25 19:28:31 -06001871 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonkere080c1f2016-09-19 13:50:25 -05001872 LOGINFO("Restore filename is: %s/%s\n", part_settings->Backup_Folder.c_str(), Backup_FileName.c_str());
Gary Peck43acadf2012-11-21 21:19:01 -08001873
bigbiffce8f83c2015-12-12 18:30:21 -05001874 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001875
1876 if (Is_File_System(Restore_File_System))
bigbiffce8f83c2015-12-12 18:30:21 -05001877 return Restore_Tar(part_settings);
1878 else if (Is_Image(Restore_File_System))
1879 return Restore_Image(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001880
1881 LOGERR("Unknown restore method for '%s'\n", Mount_Point.c_str());
1882 return false;
1883}
1884
bigbiffce8f83c2015-12-12 18:30:21 -05001885string TWPartition::Get_Restore_File_System(PartitionSettings *part_settings) {
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001886 size_t first_period, second_period;
1887 string Restore_File_System;
1888
Gary Peck43acadf2012-11-21 21:19:01 -08001889 // Parse backup filename to extract the file system before wiping
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05001890 first_period = Backup_FileName.find(".");
Gary Peck43acadf2012-11-21 21:19:01 -08001891 if (first_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001892 LOGERR("Unable to find file system (first period).\n");
thatd43bf2d2014-09-21 23:13:02 +02001893 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08001894 }
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05001895 Restore_File_System = Backup_FileName.substr(first_period + 1, Backup_FileName.size() - first_period - 1);
Gary Peck43acadf2012-11-21 21:19:01 -08001896 second_period = Restore_File_System.find(".");
1897 if (second_period == string::npos) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001898 LOGERR("Unable to find file system (second period).\n");
thatd43bf2d2014-09-21 23:13:02 +02001899 return string();
Gary Peck43acadf2012-11-21 21:19:01 -08001900 }
1901 Restore_File_System.resize(second_period);
Matt Mowera0cd91d2016-12-30 18:21:42 -06001902 LOGINFO("Restore file system is: '%s'.\n", Restore_File_System.c_str());
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05001903 return Restore_File_System;
Dees_Troy51a0e822012-09-05 15:24:24 -04001904}
1905
1906string TWPartition::Backup_Method_By_Name() {
bigbiffce8f83c2015-12-12 18:30:21 -05001907 if (Backup_Method == BM_NONE)
Dees_Troy38bd7602012-09-14 13:33:53 -04001908 return "none";
bigbiffce8f83c2015-12-12 18:30:21 -05001909 else if (Backup_Method == BM_FILES)
Dees_Troy38bd7602012-09-14 13:33:53 -04001910 return "files";
bigbiffce8f83c2015-12-12 18:30:21 -05001911 else if (Backup_Method == BM_DD)
Dees_Troy38bd7602012-09-14 13:33:53 -04001912 return "dd";
bigbiffce8f83c2015-12-12 18:30:21 -05001913 else if (Backup_Method == BM_FLASH_UTILS)
Dees_Troy38bd7602012-09-14 13:33:53 -04001914 return "flash_utils";
1915 else
1916 return "undefined";
1917 return "ERROR!";
Dees_Troy51a0e822012-09-05 15:24:24 -04001918}
1919
1920bool TWPartition::Decrypt(string Password) {
Dees_Troy2673cec2013-04-02 20:22:16 +00001921 LOGINFO("STUB TWPartition::Decrypt, password: '%s'\n", Password.c_str());
Dees_Troy38bd7602012-09-14 13:33:53 -04001922 // Is this needed?
Dees_Troy51a0e822012-09-05 15:24:24 -04001923 return 1;
1924}
1925
1926bool TWPartition::Wipe_Encryption() {
Dees_Troy38bd7602012-09-14 13:33:53 -04001927 bool Save_Data_Media = Has_Data_Media;
Ethan Yonker93382822018-11-01 15:25:31 -05001928 bool ret = false;
1929 BasePartition* base_partition = make_partition();
1930
1931 if (!base_partition->PreWipeEncryption())
1932 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04001933
dianlujitao4879b372018-12-03 18:45:47 +08001934 Find_Actual_Block_Device();
1935 if (!Is_Present) {
1936 LOGINFO("Block device not present, cannot format %s.\n", Display_Name.c_str());
1937 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
1938 return false;
1939 }
Dees_Troy38bd7602012-09-14 13:33:53 -04001940 if (!UnMount(true))
Ethan Yonker93382822018-11-01 15:25:31 -05001941 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04001942
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06001943#ifdef TW_INCLUDE_CRYPTO
Ethan Yonker1b190162016-12-05 15:25:19 -06001944 if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Matt Mower2b18a532015-02-20 16:58:05 -06001945 if (delete_crypto_blk_dev((char*)("userdata")) != 0) {
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06001946 LOGERR("Error deleting crypto block device, continuing anyway.\n");
1947 }
1948 }
1949#endif
dianlujitao4879b372018-12-03 18:45:47 +08001950 Has_Data_Media = false;
Ethan Yonker93382822018-11-01 15:25:31 -05001951 Decrypted_Block_Device = "";
Dees_Troy74fb2e92013-04-15 14:35:47 +00001952 Is_Decrypted = false;
1953 Is_Encrypted = false;
Gary Pecke8bc5d72012-12-21 06:45:25 -08001954 if (Wipe(Fstab_File_System)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04001955 Has_Data_Media = Save_Data_Media;
1956 if (Has_Data_Media && !Symlink_Mount_Point.empty()) {
1957 Recreate_Media_Folder();
Ethan Yonker726a0202014-12-16 20:01:38 -06001958 if (Mount(false))
1959 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Dees_Troy38bd7602012-09-14 13:33:53 -04001960 }
Ethan Yonkerd79d9bc2014-12-20 15:38:29 -06001961 DataManager::SetValue(TW_IS_ENCRYPTED, 0);
Ethan Yonker83e82572014-04-04 10:59:28 -05001962#ifndef TW_OEM_BUILD
Ethan Yonker74db1572015-10-28 12:44:49 -05001963 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 -05001964#endif
Ethan Yonker93382822018-11-01 15:25:31 -05001965 ret = true;
1966 if (!Key_Directory.empty())
1967 ret = PartitionManager.Wipe_By_Path(Key_Directory);
1968 if (ret)
1969 ret = base_partition->PostWipeEncryption();
1970 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04001971 } else {
1972 Has_Data_Media = Save_Data_Media;
Ethan Yonker74db1572015-10-28 12:44:49 -05001973 gui_err("format_data_err=Unable to format to remove encryption.");
Ethan Yonker726a0202014-12-16 20:01:38 -06001974 if (Has_Data_Media && Mount(false))
1975 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
Ethan Yonker93382822018-11-01 15:25:31 -05001976 goto exit;
Dees_Troy38bd7602012-09-14 13:33:53 -04001977 }
Ethan Yonker93382822018-11-01 15:25:31 -05001978exit:
1979 delete base_partition;
1980 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04001981}
1982
1983void TWPartition::Check_FS_Type() {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05001984 const char* type;
1985 blkid_probe pr;
Dees_Troy5bf43922012-09-07 16:07:55 -04001986
Dees_Troy68cab492012-12-12 19:29:35 +00001987 if (Fstab_File_System == "yaffs2" || Fstab_File_System == "mtd" || Fstab_File_System == "bml" || Ignore_Blkid)
1988 return; // Running blkid on some mtd devices causes a massive crash or needs to be skipped
Dees_Troy5bf43922012-09-07 16:07:55 -04001989
Dees_Troy38bd7602012-09-14 13:33:53 -04001990 Find_Actual_Block_Device();
Dees_Troy8170a922012-09-18 15:40:25 -04001991 if (!Is_Present)
1992 return;
Dees_Troy51127312012-09-08 13:08:49 -04001993
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05001994 pr = blkid_new_probe_from_filename(Actual_Block_Device.c_str());
1995 if (blkid_do_fullprobe(pr)) {
1996 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00001997 LOGINFO("Can't probe device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05001998 return;
Dees_Troy5bf43922012-09-07 16:07:55 -04001999 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002000
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05002001 if (blkid_probe_lookup_value(pr, "TYPE", &type, NULL) < 0) {
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002002 blkid_free_probe(pr);
Dees_Troy2673cec2013-04-02 20:22:16 +00002003 LOGINFO("can't find filesystem on device %s\n", Actual_Block_Device.c_str());
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002004 return;
2005 }
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002006
bigbiff bigbiffe60683a2013-02-22 20:55:50 -05002007 Current_File_System = type;
Vojtech Bocek4d4b3362013-06-24 22:46:13 +02002008 blkid_free_probe(pr);
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002009 if (fs_flags.size() > 1) {
2010 std::vector<partition_fs_flags_struct>::iterator iter;
2011 std::vector<partition_fs_flags_struct>::iterator found = fs_flags.begin();
2012
2013 for (iter = fs_flags.begin(); iter != fs_flags.end(); iter++) {
2014 if (iter->File_System == Current_File_System) {
2015 found = iter;
2016 break;
2017 }
2018 }
2019 // If we don't find a match, we default the flags to the first set of flags that we received from the fstab
2020 if (Mount_Flags != found->Mount_Flags || Mount_Options != found->Mount_Options) {
2021 Mount_Flags = found->Mount_Flags;
2022 Mount_Options = found->Mount_Options;
2023 LOGINFO("Mount_Flags: %i, Mount_Options: %s\n", Mount_Flags, Mount_Options.c_str());
2024 }
2025 }
Dees_Troy51a0e822012-09-05 15:24:24 -04002026}
2027
dianlujitao4879b372018-12-03 18:45:47 +08002028bool TWPartition::Wipe_EXTFS(string File_System) {
2029#if PLATFORM_SDK_VERSION < 28
2030 if (!TWFunc::Path_Exists("/sbin/mke2fs"))
2031#else
2032 if (!TWFunc::Path_Exists("/sbin/mke2fs") || !TWFunc::Path_Exists("/sbin/e2fsdroid"))
2033#endif
Dees_Troy38bd7602012-09-14 13:33:53 -04002034 return Wipe_RMRF();
2035
dianlujitao4879b372018-12-03 18:45:47 +08002036 int ret;
2037 bool NeedPreserveFooter = true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002038
Ethan Yonker25f20c12014-10-14 09:04:43 -05002039 Find_Actual_Block_Device();
2040 if (!Is_Present) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002041 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2042 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Ethan Yonker25f20c12014-10-14 09:04:43 -05002043 return false;
2044 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002045 if (!UnMount(true))
2046 return false;
2047
dianlujitao4879b372018-12-03 18:45:47 +08002048 /**
2049 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2050 * so there's no need to preserve footer.
2051 */
2052 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2053 Crypto_Key_Location != "footer") {
2054 NeedPreserveFooter = false;
2055 }
2056
2057 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2058 if (!dev_sz)
2059 return false;
2060
2061 if (NeedPreserveFooter)
2062 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2063
Dees Troy9a4d7402019-03-21 14:17:28 -04002064 char dout[16];
2065 sprintf(dout, "%llu", dev_sz / 4096);
2066
2067 //string size_str =to_string(dev_sz / 4096);
2068 string size_str = dout;
dianlujitao4879b372018-12-03 18:45:47 +08002069 string Command;
2070
2071 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mke2fs"));
2072
2073 // Execute mke2fs to create empty ext4 filesystem
2074 Command = "mke2fs -t " + File_System + " -b 4096 " + Actual_Block_Device + " " + size_str;
2075 LOGINFO("mke2fs command: %s\n", Command.c_str());
2076 ret = TWFunc::Exec_Cmd(Command);
2077 if (ret) {
2078 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2079 return false;
2080 }
2081
2082 if (TWFunc::Path_Exists("/sbin/e2fsdroid")) {
2083 // Execute e2fsdroid to initialize selinux context
2084 Command = "e2fsdroid -e -a " + Mount_Point + " " + Actual_Block_Device;
2085 LOGINFO("e2fsdroid command: %s\n", Command.c_str());
2086 ret = TWFunc::Exec_Cmd(Command);
2087 if (ret) {
2088 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2089 return false;
2090 }
2091 } else {
2092 LOGINFO("e2fsdroid not present\n");
2093 }
2094
2095 if (NeedPreserveFooter)
2096 Wipe_Crypto_Key();
2097 Current_File_System = File_System;
2098 Recreate_AndSec_Folder();
2099 gui_msg("done=Done.");
2100 return true;
2101}
2102
2103bool TWPartition::Wipe_EXT4() {
2104#ifdef USE_EXT4
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002105 int ret;
dianlujitao4879b372018-12-03 18:45:47 +08002106 bool NeedPreserveFooter = true;
2107
2108 Find_Actual_Block_Device();
2109 if (!Is_Present) {
2110 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2111 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2112 return false;
2113 }
2114 if (!UnMount(true))
2115 return false;
2116
2117 /**
2118 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2119 * so there's no need to preserve footer.
2120 */
2121 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2122 Crypto_Key_Location != "footer") {
2123 NeedPreserveFooter = false;
2124 }
2125
2126 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2127 if (!dev_sz)
2128 return false;
2129
2130 if (NeedPreserveFooter)
2131 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2132
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002133 char *secontext = NULL;
2134
Greg Wallace4b44fef2015-12-29 15:33:24 -05002135 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("make_ext4fs"));
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002136
Dees Troy99c8dbf2014-03-10 16:53:58 +00002137 if (!selinux_handle || selabel_lookup(selinux_handle, &secontext, Mount_Point.c_str(), S_IFDIR) < 0) {
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002138 LOGINFO("Cannot lookup security context for '%s'\n", Mount_Point.c_str());
dianlujitao4879b372018-12-03 18:45:47 +08002139 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), NULL);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002140 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002141 ret = make_ext4fs(Actual_Block_Device.c_str(), dev_sz, Mount_Point.c_str(), selinux_handle);
Ethan Yonkerf27497f2014-02-09 11:48:33 -06002142 }
2143 if (ret != 0) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002144 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troya95f55c2013-08-17 13:14:43 +00002145 return false;
2146 } else {
dianlujitao4879b372018-12-03 18:45:47 +08002147 if (NeedPreserveFooter)
2148 Wipe_Crypto_Key();
bigbiff bigbiffc49d7062013-10-11 20:28:00 -04002149 string sedir = Mount_Point + "/lost+found";
2150 PartitionManager.Mount_By_Path(sedir.c_str(), true);
2151 rmdir(sedir.c_str());
2152 mkdir(sedir.c_str(), S_IRWXU | S_IRWXG | S_IWGRP | S_IXGRP);
Dees_Troya95f55c2013-08-17 13:14:43 +00002153 return true;
2154 }
2155#else
dianlujitao4879b372018-12-03 18:45:47 +08002156 return Wipe_EXTFS("ext4");
Dees_Troya95f55c2013-08-17 13:14:43 +00002157#endif
Dees_Troy51a0e822012-09-05 15:24:24 -04002158}
2159
2160bool TWPartition::Wipe_FAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002161 string command;
Dees_Troy38bd7602012-09-14 13:33:53 -04002162
Matt Mower18794c82015-11-11 16:22:45 -06002163 if (TWFunc::Path_Exists("/sbin/mkfs.fat")) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002164 if (!UnMount(true))
2165 return false;
2166
Greg Wallace4b44fef2015-12-29 15:33:24 -05002167 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.fat"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002168 Find_Actual_Block_Device();
Matt Mower18794c82015-11-11 16:22:45 -06002169 command = "mkfs.fat " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002170 if (TWFunc::Exec_Cmd(command) == 0) {
Gary Pecke8bc5d72012-12-21 06:45:25 -08002171 Current_File_System = "vfat";
Dees_Troye58d5262012-09-21 12:27:57 -04002172 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002173 gui_msg("done=Done.");
Dees_Troy38bd7602012-09-14 13:33:53 -04002174 return true;
2175 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002176 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troy38bd7602012-09-14 13:33:53 -04002177 return false;
2178 }
2179 return true;
2180 }
2181 else
2182 return Wipe_RMRF();
2183
2184 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002185}
2186
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002187bool TWPartition::Wipe_EXFAT() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002188 string command;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002189
2190 if (TWFunc::Path_Exists("/sbin/mkexfatfs")) {
2191 if (!UnMount(true))
2192 return false;
2193
Greg Wallace4b44fef2015-12-29 15:33:24 -05002194 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkexfatfs"));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002195 Find_Actual_Block_Device();
2196 command = "mkexfatfs " + Actual_Block_Device;
Vojtech Bocek05534202013-09-11 08:11:56 +02002197 if (TWFunc::Exec_Cmd(command) == 0) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002198 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002199 gui_msg("done=Done.");
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002200 return true;
2201 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002202 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002203 return false;
2204 }
2205 return true;
2206 }
2207 return false;
2208}
2209
Dees_Troy38bd7602012-09-14 13:33:53 -04002210bool TWPartition::Wipe_MTD() {
2211 if (!UnMount(true))
2212 return false;
2213
Greg Wallace4b44fef2015-12-29 15:33:24 -05002214 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("MTD"));
Dees_Troy38bd7602012-09-14 13:33:53 -04002215
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002216 mtd_scan_partitions();
2217 const MtdPartition* mtd = mtd_find_partition_by_name(MTD_Name.c_str());
2218 if (mtd == NULL) {
2219 LOGERR("No mtd partition named '%s'", MTD_Name.c_str());
2220 return false;
2221 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002222
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002223 MtdWriteContext* ctx = mtd_write_partition(mtd);
2224 if (ctx == NULL) {
2225 LOGERR("Can't write '%s', failed to format.", MTD_Name.c_str());
2226 return false;
2227 }
2228 if (mtd_erase_blocks(ctx, -1) == -1) {
2229 mtd_write_close(ctx);
2230 LOGERR("Failed to format '%s'", MTD_Name.c_str());
2231 return false;
2232 }
2233 if (mtd_write_close(ctx) != 0) {
2234 LOGERR("Failed to close '%s'", MTD_Name.c_str());
2235 return false;
2236 }
Gary Pecke8bc5d72012-12-21 06:45:25 -08002237 Current_File_System = "yaffs2";
Dees_Troye58d5262012-09-21 12:27:57 -04002238 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002239 gui_msg("done=Done.");
Vojtech Bocekfafb0c52013-07-25 22:53:02 +02002240 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002241}
2242
2243bool TWPartition::Wipe_RMRF() {
Dees_Troy38bd7602012-09-14 13:33:53 -04002244 if (!Mount(true))
2245 return false;
Ethan Yonker726a0202014-12-16 20:01:38 -06002246 // This is the only wipe that leaves the partition mounted, so we
2247 // must manually remove the partition from MTP if it is a storage
2248 // partition.
2249 if (Is_Storage)
2250 PartitionManager.Remove_MTP_Storage(MTP_Storage_ID);
Dees_Troy38bd7602012-09-14 13:33:53 -04002251
Ethan Yonker74db1572015-10-28 12:44:49 -05002252 gui_msg(Msg("remove_all=Removing all files under '{1}'")(Mount_Point));
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002253 TWFunc::removeDir(Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04002254 Recreate_AndSec_Folder();
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002255 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002256}
2257
Dees_Troye5017042013-08-29 16:38:55 +00002258bool TWPartition::Wipe_F2FS() {
Vojtech Bocek05534202013-09-11 08:11:56 +02002259 string command;
Dees_Troye5017042013-08-29 16:38:55 +00002260
2261 if (TWFunc::Path_Exists("/sbin/mkfs.f2fs")) {
dianlujitao4879b372018-12-03 18:45:47 +08002262 bool NeedPreserveFooter = true;
2263
2264 Find_Actual_Block_Device();
2265 if (!Is_Present) {
2266 LOGINFO("Block device not present, cannot wipe %s.\n", Display_Name.c_str());
2267 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2268 return false;
2269 }
Dees_Troye5017042013-08-29 16:38:55 +00002270 if (!UnMount(true))
2271 return false;
2272
dianlujitao4879b372018-12-03 18:45:47 +08002273 /**
2274 * On decrypted devices, IOCTL_Get_Block_Size calculates size on device mapper,
2275 * so there's no need to preserve footer.
2276 */
2277 if ((Is_Decrypted && !Decrypted_Block_Device.empty()) ||
2278 Crypto_Key_Location != "footer") {
2279 NeedPreserveFooter = false;
dhacker29a3fa75f2015-01-17 19:42:33 -05002280 }
dianlujitao4879b372018-12-03 18:45:47 +08002281
dianlujitao4879b372018-12-03 18:45:47 +08002282 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)("mkfs.f2fs"));
Ethan Yonker7e941582019-03-22 08:18:21 -05002283 // First determine if we have the old mkfs.f2fs that uses "-r reserved_bytes"
2284 // or the new mkfs.f2fs that expects the number of sectors as the optional last argument
2285 // Note: some 7.1 trees have the old and some have the new.
2286 command = "mkfs.f2fs | grep \"reserved\" > /tmp/f2fsversiontest";
2287 TWFunc::Exec_Cmd(command, false); // no help argument so printing usage exits with an error code
2288 if (!TWFunc::Path_Exists("/tmp/f2fsversiontest")) {
2289 LOGINFO("Error determining mkfs.f2fs version\n");
2290 return false;
2291 }
2292 if (TWFunc::Get_File_Size("/tmp/f2fsversiontest") <= 0) {
2293 LOGINFO("Using newer mkfs.f2fs\n");
2294 unsigned long long dev_sz = TWFunc::IOCTL_Get_Block_Size(Actual_Block_Device.c_str());
2295 if (!dev_sz)
2296 return false;
2297
2298 if (NeedPreserveFooter)
2299 Length < 0 ? dev_sz += Length : dev_sz -= CRYPT_FOOTER_OFFSET;
2300
2301 char dev_sz_str[48];
2302 sprintf(dev_sz_str, "%llu", (dev_sz / 4096));
2303 command = "mkfs.f2fs -d1 -f -O encrypt -O quota -O verity -w 4096 " + Actual_Block_Device + " " + dev_sz_str;
2304 if (TWFunc::Path_Exists("/sbin/sload.f2fs")) {
2305 command += " && sload.f2fs -t /data " + Actual_Block_Device;
2306 }
2307 } else {
2308 LOGINFO("Using older mkfs.f2fs\n");
2309 command = "mkfs.f2fs -t 0";
2310 if (NeedPreserveFooter) {
2311 // Only use length if we're not decrypted
2312 char len[32];
2313 int mod_length = Length;
2314 if (Length < 0)
2315 mod_length *= -1;
2316 sprintf(len, "%i", mod_length);
2317 command += " -r ";
2318 command += len;
2319 }
2320 command += " " + Actual_Block_Device;
dianlujitao4879b372018-12-03 18:45:47 +08002321 }
2322 LOGINFO("mkfs.f2fs command: %s\n", command.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02002323 if (TWFunc::Exec_Cmd(command) == 0) {
dianlujitao4879b372018-12-03 18:45:47 +08002324 if (NeedPreserveFooter)
2325 Wipe_Crypto_Key();
Dees_Troye5017042013-08-29 16:38:55 +00002326 Recreate_AndSec_Folder();
Ethan Yonker74db1572015-10-28 12:44:49 -05002327 gui_msg("done=Done.");
Dees_Troye5017042013-08-29 16:38:55 +00002328 return true;
2329 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002330 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
Dees_Troye5017042013-08-29 16:38:55 +00002331 return false;
2332 }
2333 return true;
2334 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002335 LOGINFO("mkfs.f2fs binary not found, using rm -rf to wipe.\n");
Dees_Troye5017042013-08-29 16:38:55 +00002336 return Wipe_RMRF();
2337 }
2338 return false;
2339}
2340
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002341bool TWPartition::Wipe_NTFS() {
2342 string command;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002343 string Ntfsmake_Binary;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002344
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002345 if (TWFunc::Path_Exists("/sbin/mkntfs"))
2346 Ntfsmake_Binary = "mkntfs";
2347 else if (TWFunc::Path_Exists("/sbin/mkfs.ntfs"))
2348 Ntfsmake_Binary = "mkfs.ntfs";
2349 else
2350 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002351
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002352 if (!UnMount(true))
2353 return false;
2354
Greg Wallace4b44fef2015-12-29 15:33:24 -05002355 gui_msg(Msg("formatting_using=Formatting {1} using {2}...")(Display_Name)(Ntfsmake_Binary));
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002356 Find_Actual_Block_Device();
2357 command = "/sbin/" + Ntfsmake_Binary + " " + Actual_Block_Device;
2358 if (TWFunc::Exec_Cmd(command) == 0) {
2359 Recreate_AndSec_Folder();
2360 gui_msg("done=Done.");
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002361 return true;
Greg Wallaceb39e6c62015-12-29 00:55:26 -05002362 } else {
2363 gui_msg(Msg(msg::kError, "unable_to_wipe=Unable to wipe {1}.")(Display_Name));
2364 return false;
Ethan Yonkerb81d9052015-07-09 13:20:53 -05002365 }
2366 return false;
2367}
2368
Dees_Troy51a0e822012-09-05 15:24:24 -04002369bool TWPartition::Wipe_Data_Without_Wiping_Media() {
Ethan Yonker83e82572014-04-04 10:59:28 -05002370#ifdef TW_OEM_BUILD
2371 // In an OEM Build we want to do a full format
2372 return Wipe_Encryption();
2373#else
Ethan Yonker66a19492015-12-10 10:19:45 -06002374 bool ret = false;
Dees_Troy38bd7602012-09-14 13:33:53 -04002375
Dees_Troy38bd7602012-09-14 13:33:53 -04002376 if (!Mount(true))
2377 return false;
2378
Ethan Yonker74db1572015-10-28 12:44:49 -05002379 gui_msg("wiping_data=Wiping data without wiping /data/media ...");
Ethan Yonker66a19492015-12-10 10:19:45 -06002380 ret = Wipe_Data_Without_Wiping_Media_Func(Mount_Point + "/");
2381 if (ret)
2382 gui_msg("done=Done.");
2383 return ret;
2384#endif // ifdef TW_OEM_BUILD
2385}
2386
2387bool TWPartition::Wipe_Data_Without_Wiping_Media_Func(const string& parent __unused) {
2388 string dir;
Dees_Troy38bd7602012-09-14 13:33:53 -04002389
2390 DIR* d;
Ethan Yonker66a19492015-12-10 10:19:45 -06002391 d = opendir(parent.c_str());
Dees_Troy16b74352012-11-14 22:27:31 +00002392 if (d != NULL) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002393 struct dirent* de;
2394 while ((de = readdir(d)) != NULL) {
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002395 if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0) continue;
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002396
Ethan Yonker66a19492015-12-10 10:19:45 -06002397 dir = parent;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002398 dir.append(de->d_name);
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002399 if (wipe_exclusions.check_skip_dirs(dir)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002400 LOGINFO("skipped '%s'\n", dir.c_str());
2401 continue;
2402 }
Dees_Troyce675462013-01-09 19:48:21 +00002403 if (de->d_type == DT_DIR) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002404 dir.append("/");
2405 if (!Wipe_Data_Without_Wiping_Media_Func(dir)) {
2406 closedir(d);
2407 return false;
2408 }
2409 rmdir(dir.c_str());
bigbiff bigbiff98f1f902013-01-19 18:46:13 -05002410 } 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 +03002411 if (unlink(dir.c_str()) != 0)
Ethan Yonker79f88bd2016-12-09 14:52:12 -06002412 LOGINFO("Unable to unlink '%s': %s\n", dir.c_str(), strerror(errno));
Dees_Troyce675462013-01-09 19:48:21 +00002413 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002414 }
2415 closedir(d);
bigbiff bigbiffc7360dd2014-01-25 15:02:57 -05002416
Dees_Troy16b74352012-11-14 22:27:31 +00002417 return true;
Dees_Troy38bd7602012-09-14 13:33:53 -04002418 }
Ethan Yonker74db1572015-10-28 12:44:49 -05002419 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Mount_Point)(strerror(errno)));
Dees_Troy16b74352012-11-14 22:27:31 +00002420 return false;
Dees_Troy51a0e822012-09-05 15:24:24 -04002421}
2422
dianlujitao4879b372018-12-03 18:45:47 +08002423void TWPartition::Wipe_Crypto_Key() {
2424 Find_Actual_Block_Device();
2425 if (Crypto_Key_Location.empty())
2426 return;
2427 else if (Crypto_Key_Location == "footer") {
2428 int fd = open(Actual_Block_Device.c_str(), O_RDWR);
2429 if (fd < 0) {
2430 gui_print_color("warning", "Unable to open '%s' to wipe crypto key\n", Actual_Block_Device.c_str());
2431 return;
2432 }
2433
2434 unsigned int block_count;
2435 if ((ioctl(fd, BLKGETSIZE, &block_count)) == -1) {
2436 gui_print_color("warning", "Unable to get block size for wiping crypto footer.\n");
2437 } else {
2438 int newlen = Length < 0 ? -Length : CRYPT_FOOTER_OFFSET;
2439 off64_t offset = ((off64_t)block_count * 512) - newlen;
2440 if (lseek64(fd, offset, SEEK_SET) == -1) {
2441 gui_print_color("warning", "Unable to lseek64 for wiping crypto footer.\n");
2442 } else {
2443 void* buffer = malloc(newlen);
2444 if (!buffer) {
2445 gui_print_color("warning", "Failed to malloc for wiping crypto footer.\n");
2446 } else {
2447 memset(buffer, 0, newlen);
2448 int ret = write(fd, buffer, newlen);
2449 if (ret != newlen) {
2450 gui_print_color("warning", "Failed to wipe crypto footer.\n");
2451 } else {
2452 LOGINFO("Successfully wiped crypto footer.\n");
2453 }
2454 free(buffer);
2455 }
2456 }
2457 }
2458 close(fd);
2459 } else {
2460 if (TWFunc::IOCTL_Get_Block_Size(Crypto_Key_Location.c_str()) >= 16384LLU) {
2461 string Command = "dd of='" + Crypto_Key_Location + "' if=/dev/zero bs=16384 count=1";
2462 TWFunc::Exec_Cmd(Command);
2463 } else {
2464 LOGINFO("Crypto key location reports size < 16K so not wiping crypto footer.\n");
2465 }
2466 }
2467}
2468
bigbiffce8f83c2015-12-12 18:30:21 -05002469bool TWPartition::Backup_Tar(PartitionSettings *part_settings, pid_t *tar_fork_pid) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002470 string Full_FileName;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002471 twrpTar tar;
bigbiff bigbiffcdcfee42013-02-27 21:11:26 -05002472
Dees_Troy43d8b002012-09-17 16:00:01 -04002473 if (!Mount(true))
2474 return false;
2475
Dees_Troya13d74f2013-03-24 08:54:55 -05002476 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Backup_Display_Name, "Backing Up");
Ethan Yonker74db1572015-10-28 12:44:49 -05002477 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002478
Ethan Yonker472f5062016-02-25 13:47:30 -06002479 DataManager::GetValue(TW_USE_COMPRESSION_VAR, tar.use_compression);
Matt Mowerbb81e5d2014-03-20 18:05:41 -05002480
Dees_Troy83bd4832013-05-04 12:39:56 +00002481#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
Ethan Yonker472f5062016-02-25 13:47:30 -06002482 if (Can_Encrypt_Backup) {
2483 DataManager::GetValue("tw_encrypt_backup", tar.use_encryption);
2484 if (tar.use_encryption) {
2485 if (Use_Userdata_Encryption)
2486 tar.userdata_encryption = tar.use_encryption;
2487 string Password;
2488 DataManager::GetValue("tw_backup_password", Password);
2489 tar.setpassword(Password);
2490 } else {
2491 tar.use_encryption = 0;
2492 }
Dees_Troy83bd4832013-05-04 12:39:56 +00002493 }
2494#endif
Dees_Troy43d8b002012-09-17 16:00:01 -04002495
Ethan Yonker472f5062016-02-25 13:47:30 -06002496 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002497 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker01f4e032017-02-03 15:30:52 -06002498 if (Has_Data_Media)
2499 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));
bigbiffce8f83c2015-12-12 18:30:21 -05002500 tar.part_settings = part_settings;
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002501 tar.backup_exclusions = &backup_exclusions;
Dees Troye0a433a2013-12-02 04:10:37 +00002502 tar.setdir(Backup_Path);
2503 tar.setfn(Full_FileName);
2504 tar.setsize(Backup_Size);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002505 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002506 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002507 if (tar.createTarFork(tar_fork_pid) != 0)
Dees Troye0a433a2013-12-02 04:10:37 +00002508 return false;
Dees_Troy43d8b002012-09-17 16:00:01 -04002509 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002510}
2511
bigbiffce8f83c2015-12-12 18:30:21 -05002512bool TWPartition::Backup_Image(PartitionSettings *part_settings) {
2513 string Full_FileName, adb_file_name;
igoriok87e3d932013-01-31 21:03:53 +02002514
Ethan Yonker74db1572015-10-28 12:44:49 -05002515 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2516 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002517
Ethan Yonker472f5062016-02-25 13:47:30 -06002518 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Dees_Troy43d8b002012-09-17 16:00:01 -04002519
bigbiffce8f83c2015-12-12 18:30:21 -05002520 if (part_settings->adbbackup) {
2521 Full_FileName = TW_ADB_BACKUP;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002522 adb_file_name = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002523 }
2524 else
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002525 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002526
2527 part_settings->total_restore_size = Backup_Size;
2528
2529 if (part_settings->adbbackup) {
2530 if (!twadbbu::Write_TWIMG(adb_file_name, Backup_Size))
2531 return false;
2532 }
2533
2534 if (!Raw_Read_Write(part_settings))
Ethan Yonker472f5062016-02-25 13:47:30 -06002535 return false;
2536
bigbiffce8f83c2015-12-12 18:30:21 -05002537 if (part_settings->adbbackup) {
2538 if (!twadbbu::Write_TWEOF())
2539 return false;
Dees_Troy7c2dec82012-09-26 09:49:14 -04002540 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002541 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002542}
2543
bigbiffce8f83c2015-12-12 18:30:21 -05002544bool TWPartition::Raw_Read_Write(PartitionSettings *part_settings) {
2545 unsigned long long RW_Block_Size, Remain = Backup_Size;
2546 int src_fd = -1, dest_fd = -1;
2547 ssize_t bs;
Ethan Yonker472f5062016-02-25 13:47:30 -06002548 bool ret = false;
2549 void* buffer = NULL;
2550 unsigned long long backedup_size = 0;
bigbiffce8f83c2015-12-12 18:30:21 -05002551 string srcfn, destfn;
Ethan Yonker472f5062016-02-25 13:47:30 -06002552
bigbiffce8f83c2015-12-12 18:30:21 -05002553 if (part_settings->PM_Method == PM_BACKUP) {
2554 srcfn = Actual_Block_Device;
2555 if (part_settings->adbbackup)
2556 destfn = TW_ADB_BACKUP;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002557 else {
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002558 destfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiff bigbiff38b83c12017-12-28 19:58:52 -05002559 }
bigbiffce8f83c2015-12-12 18:30:21 -05002560 }
2561 else {
2562 destfn = Actual_Block_Device;
2563 if (part_settings->adbbackup) {
2564 srcfn = TW_ADB_RESTORE;
2565 } else {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002566 srcfn = part_settings->Backup_Folder + "/" + Backup_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002567 Remain = TWFunc::Get_File_Size(srcfn);
2568 }
2569 }
Ethan Yonker472f5062016-02-25 13:47:30 -06002570
bigbiffce8f83c2015-12-12 18:30:21 -05002571 src_fd = open(srcfn.c_str(), O_RDONLY | O_LARGEFILE);
Ethan Yonker472f5062016-02-25 13:47:30 -06002572 if (src_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002573 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(srcfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002574 return false;
2575 }
bigbiffce8f83c2015-12-12 18:30:21 -05002576
2577 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 -06002578 if (dest_fd < 0) {
bigbiffce8f83c2015-12-12 18:30:21 -05002579 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(destfn.c_str())(strerror(errno)));
Ethan Yonker472f5062016-02-25 13:47:30 -06002580 goto exit;
2581 }
bigbiff bigbiff19fb79c2016-09-05 21:04:51 -04002582
bigbiffce8f83c2015-12-12 18:30:21 -05002583 LOGINFO("Reading '%s', writing '%s'\n", srcfn.c_str(), destfn.c_str());
2584
2585 if (part_settings->adbbackup) {
2586 RW_Block_Size = MAX_ADB_READ;
2587 bs = MAX_ADB_READ;
2588 }
2589 else {
2590 RW_Block_Size = 1048576LLU; // 1MB
2591 bs = (ssize_t)(RW_Block_Size);
2592 }
2593
Ethan Yonker472f5062016-02-25 13:47:30 -06002594 buffer = malloc((size_t)bs);
2595 if (!buffer) {
2596 LOGINFO("Raw_Read_Write failed to malloc\n");
2597 goto exit;
2598 }
bigbiffce8f83c2015-12-12 18:30:21 -05002599
2600 if (part_settings->progress)
2601 part_settings->progress->SetPartitionSize(part_settings->total_restore_size);
2602
Ethan Yonker472f5062016-02-25 13:47:30 -06002603 while (Remain > 0) {
2604 if (Remain < RW_Block_Size)
bigbiffce8f83c2015-12-12 18:30:21 -05002605 bs = (ssize_t)(Remain);
Matt Mowera8a89d12016-12-30 18:10:37 -06002606 if (read(src_fd, buffer, bs) != bs) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002607 LOGINFO("Error reading source fd (%s)\n", strerror(errno));
2608 goto exit;
2609 }
2610 if (write(dest_fd, buffer, bs) != bs) {
2611 LOGINFO("Error writing destination fd (%s)\n", strerror(errno));
2612 goto exit;
2613 }
2614 backedup_size += (unsigned long long)(bs);
Matt Mower029a82d2017-01-08 13:12:38 -06002615 Remain -= (unsigned long long)(bs);
bigbiffce8f83c2015-12-12 18:30:21 -05002616 if (part_settings->progress)
2617 part_settings->progress->UpdateSize(backedup_size);
Ethan Yonker472f5062016-02-25 13:47:30 -06002618 if (PartitionManager.Check_Backup_Cancel() != 0)
2619 goto exit;
2620 }
bigbiffce8f83c2015-12-12 18:30:21 -05002621 if (part_settings->progress)
2622 part_settings->progress->UpdateDisplayDetails(true);
Ethan Yonker472f5062016-02-25 13:47:30 -06002623 fsync(dest_fd);
nailyka083dc62016-11-11 21:41:28 +01002624
2625 if (!part_settings->adbbackup && part_settings->PM_Method == PM_BACKUP) {
2626 tw_set_default_metadata(destfn.c_str());
2627 LOGINFO("Restored default metadata for %s\n", destfn.c_str());
2628 }
2629
Ethan Yonker472f5062016-02-25 13:47:30 -06002630 ret = true;
2631exit:
2632 if (src_fd >= 0)
2633 close(src_fd);
2634 if (dest_fd >= 0)
2635 close(dest_fd);
2636 if (buffer)
2637 free(buffer);
2638 return ret;
2639}
2640
bigbiffce8f83c2015-12-12 18:30:21 -05002641bool TWPartition::Backup_Dump_Image(PartitionSettings *part_settings) {
Vojtech Bocek05534202013-09-11 08:11:56 +02002642 string Full_FileName, Command;
Dees_Troy43d8b002012-09-17 16:00:01 -04002643
Ethan Yonker74db1572015-10-28 12:44:49 -05002644 TWFunc::GUI_Operation_Text(TW_BACKUP_TEXT, Display_Name, gui_parse_text("{@backing}"));
2645 gui_msg(Msg("backing_up=Backing up {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002646
bigbiffce8f83c2015-12-12 18:30:21 -05002647 if (part_settings->progress)
2648 part_settings->progress->SetPartitionSize(Backup_Size);
Dees_Troy43d8b002012-09-17 16:00:01 -04002649
Ethan Yonker472f5062016-02-25 13:47:30 -06002650 Backup_FileName = Backup_Name + "." + Current_File_System + ".win";
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002651 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Dees_Troy43d8b002012-09-17 16:00:01 -04002652
2653 Command = "dump_image " + MTD_Name + " '" + Full_FileName + "'";
bigbiffce8f83c2015-12-12 18:30:21 -05002654
Dees_Troy2673cec2013-04-02 20:22:16 +00002655 LOGINFO("Backup command: '%s'\n", Command.c_str());
Vojtech Bocek05534202013-09-11 08:11:56 +02002656 TWFunc::Exec_Cmd(Command);
Ethan Yonker4b94cfd2014-12-11 10:00:45 -06002657 tw_set_default_metadata(Full_FileName.c_str());
Dees_Troy7c2dec82012-09-26 09:49:14 -04002658 if (TWFunc::Get_File_Size(Full_FileName) == 0) {
2659 // 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 -06002660 gui_msg(Msg(msg::kError, "backup_size=Backup file size for '{1}' is 0 bytes.")(Full_FileName));
Dees_Troy7c2dec82012-09-26 09:49:14 -04002661 return false;
2662 }
bigbiffce8f83c2015-12-12 18:30:21 -05002663 if (part_settings->progress)
2664 part_settings->progress->UpdateSize(Backup_Size);
2665
Dees_Troy43d8b002012-09-17 16:00:01 -04002666 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002667}
2668
bigbiffce8f83c2015-12-12 18:30:21 -05002669unsigned long long TWPartition::Get_Restore_Size(PartitionSettings *part_settings) {
2670 if (!part_settings->adbbackup) {
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002671 InfoManager restore_info(part_settings->Backup_Folder + "/" + Backup_Name + ".info");
bigbiffce8f83c2015-12-12 18:30:21 -05002672 if (restore_info.LoadValues() == 0) {
2673 if (restore_info.GetValue("backup_size", Restore_Size) == 0) {
2674 LOGINFO("Read info file, restore size is %llu\n", Restore_Size);
2675 return Restore_Size;
2676 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002677 }
2678 }
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002679
Matt Mower029a82d2017-01-08 13:12:38 -06002680 string Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
2681 string Restore_File_System = Get_Restore_File_System(part_settings);
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002682
2683 if (Is_Image(Restore_File_System)) {
2684 Restore_Size = TWFunc::Get_File_Size(Full_FileName);
2685 return Restore_Size;
2686 }
2687
2688 twrpTar tar;
2689 tar.setdir(Backup_Path);
2690 tar.setfn(Full_FileName);
bigbiffce8f83c2015-12-12 18:30:21 -05002691 tar.backup_name = Full_FileName;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002692#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2693 string Password;
2694 DataManager::GetValue("tw_restore_password", Password);
2695 if (!Password.empty())
2696 tar.setpassword(Password);
2697#endif
2698 tar.partition_name = Backup_Name;
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002699 tar.backup_folder = part_settings->Backup_Folder;
bigbiffce8f83c2015-12-12 18:30:21 -05002700 tar.part_settings = part_settings;
Ethan Yonker1b7a31b2014-07-03 15:09:22 -05002701 Restore_Size = tar.get_size();
2702 return Restore_Size;
2703}
2704
bigbiffce8f83c2015-12-12 18:30:21 -05002705bool TWPartition::Restore_Tar(PartitionSettings *part_settings) {
Ethan Yonker472f5062016-02-25 13:47:30 -06002706 string Full_FileName;
Dees Troy4159aed2014-02-28 17:24:43 +00002707 bool ret = false;
bigbiffce8f83c2015-12-12 18:30:21 -05002708 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002709
Dees_Troye58d5262012-09-21 12:27:57 -04002710 if (Has_Android_Secure) {
Dees_Troye58d5262012-09-21 12:27:57 -04002711 if (!Wipe_AndSec())
2712 return false;
Gary Peck43acadf2012-11-21 21:19:01 -08002713 } else {
Ethan Yonker74db1572015-10-28 12:44:49 -05002714 gui_msg(Msg("wiping=Wiping {1}")(Backup_Display_Name));
Ethan Yonker5eac2222014-06-11 12:22:55 -05002715 if (Has_Data_Media && Mount_Point == "/data" && Restore_File_System != Current_File_System) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002716 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 -05002717 if (!Wipe_Data_Without_Wiping_Media())
2718 return false;
2719 } else {
2720 if (!Wipe(Restore_File_System))
2721 return false;
2722 }
Dees_Troye58d5262012-09-21 12:27:57 -04002723 }
Matt Mower3c366972015-12-25 19:28:31 -06002724 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002725 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
Dees_Troy43d8b002012-09-17 16:00:01 -04002726
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002727 // Remount as read/write as needed so we can restore the backup
2728 if (!ReMount_RW(true))
Dees_Troy43d8b002012-09-17 16:00:01 -04002729 return false;
2730
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05002731 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker87af5632014-02-10 11:56:35 -06002732 twrpTar tar;
bigbiffce8f83c2015-12-12 18:30:21 -05002733 tar.part_settings = part_settings;
Ethan Yonker87af5632014-02-10 11:56:35 -06002734 tar.setdir(Backup_Path);
2735 tar.setfn(Full_FileName);
2736 tar.backup_name = Backup_Name;
2737#ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
2738 string Password;
2739 DataManager::GetValue("tw_restore_password", Password);
2740 if (!Password.empty())
2741 tar.setpassword(Password);
2742#endif
bigbiffce8f83c2015-12-12 18:30:21 -05002743 part_settings->progress->SetPartitionSize(Get_Restore_Size(part_settings));
2744 if (tar.extractTarFork() != 0)
Dees Troy4159aed2014-02-28 17:24:43 +00002745 ret = false;
2746 else
2747 ret = true;
2748#ifdef HAVE_CAPABILITIES
2749 // Restore capabilities to the run-as binary
Captain Throwback9d6feb52018-07-27 10:05:24 -04002750 if (Mount_Point == PartitionManager.Get_Android_Root_Path() && Mount(true) && TWFunc::Path_Exists("/system/bin/run-as")) {
Dees Troy4159aed2014-02-28 17:24:43 +00002751 struct vfs_cap_data cap_data;
2752 uint64_t capabilities = (1 << CAP_SETUID) | (1 << CAP_SETGID);
2753
2754 memset(&cap_data, 0, sizeof(cap_data));
2755 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
2756 cap_data.data[0].permitted = (uint32_t) (capabilities & 0xffffffff);
2757 cap_data.data[0].inheritable = 0;
2758 cap_data.data[1].permitted = (uint32_t) (capabilities >> 32);
2759 cap_data.data[1].inheritable = 0;
2760 if (setxattr("/system/bin/run-as", XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
2761 LOGINFO("Failed to reset capabilities of /system/bin/run-as binary.\n");
2762 } else {
2763 LOGINFO("Reset capabilities of /system/bin/run-as binary successful.\n");
2764 }
2765 }
2766#endif
James Christopher Adduonod6f94ac2016-02-29 04:26:04 -05002767 if (Mount_Read_Only || Mount_Flags & MS_RDONLY)
2768 // Remount as read only when restoration is complete
2769 ReMount(true);
2770
Dees Troy4159aed2014-02-28 17:24:43 +00002771 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -04002772}
2773
bigbiffce8f83c2015-12-12 18:30:21 -05002774bool TWPartition::Restore_Image(PartitionSettings *part_settings) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06002775 string Full_FileName;
bigbiffce8f83c2015-12-12 18:30:21 -05002776 string Restore_File_System = Get_Restore_File_System(part_settings);
Dees_Troy43d8b002012-09-17 16:00:01 -04002777
Matt Mower3c366972015-12-25 19:28:31 -06002778 TWFunc::GUI_Operation_Text(TW_RESTORE_TEXT, Backup_Display_Name, gui_parse_text("{@restoring_hdr}"));
Ethan Yonker74db1572015-10-28 12:44:49 -05002779 gui_msg(Msg("restoring=Restoring {1}...")(Backup_Display_Name));
bigbiffce8f83c2015-12-12 18:30:21 -05002780
2781 if (part_settings->adbbackup)
2782 Full_FileName = TW_ADB_RESTORE;
2783 else
Ethan Yonkere080c1f2016-09-19 13:50:25 -05002784 Full_FileName = part_settings->Backup_Folder + "/" + Backup_FileName;
Gary Peck15e623d2012-11-21 21:07:58 -08002785
Ethan Yonker96af84a2015-01-05 14:58:36 -06002786 if (Restore_File_System == "emmc") {
bigbiffce8f83c2015-12-12 18:30:21 -05002787 if (!part_settings->adbbackup)
2788 part_settings->total_restore_size = (uint64_t)(TWFunc::Get_File_Size(Full_FileName));
2789 if (!Raw_Read_Write(part_settings))
Ethan Yonker96af84a2015-01-05 14:58:36 -06002790 return false;
2791 } else if (Restore_File_System == "mtd" || Restore_File_System == "bml") {
bigbiffce8f83c2015-12-12 18:30:21 -05002792 if (!Flash_Image_FI(Full_FileName, part_settings->progress))
2793 return false;
2794 }
2795
2796 if (part_settings->adbbackup) {
2797 if (!twadbbu::Write_TWEOF())
Ethan Yonker96af84a2015-01-05 14:58:36 -06002798 return false;
Gary Peck15e623d2012-11-21 21:07:58 -08002799 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002800 return true;
Dees_Troy51a0e822012-09-05 15:24:24 -04002801}
Dees_Troy5bf43922012-09-07 16:07:55 -04002802
2803bool TWPartition::Update_Size(bool Display_Error) {
Dees_Troy0550cfb2012-10-13 11:56:13 -04002804 bool ret = false, Was_Already_Mounted = false;
Dees_Troy51127312012-09-08 13:08:49 -04002805
Ethan Yonker1b190162016-12-05 15:25:19 -06002806 Find_Actual_Block_Device();
2807
2808 if (!Can_Be_Mounted && !Is_Encrypted) {
2809 if (TWFunc::Path_Exists(Actual_Block_Device) && Find_Partition_Size()) {
2810 Used = Size;
2811 Backup_Size = Size;
2812 return true;
2813 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002814 return false;
Ethan Yonker1b190162016-12-05 15:25:19 -06002815 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002816
Dees_Troy0550cfb2012-10-13 11:56:13 -04002817 Was_Already_Mounted = Is_Mounted();
Dees_Troy38bd7602012-09-14 13:33:53 -04002818 if (Removable || Is_Encrypted) {
2819 if (!Mount(false))
2820 return true;
2821 } else if (!Mount(Display_Error))
Dees_Troy5bf43922012-09-07 16:07:55 -04002822 return false;
Dees_Troy51127312012-09-08 13:08:49 -04002823
2824 ret = Get_Size_Via_statfs(Display_Error);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002825 if (!ret || Size == 0) {
2826 if (!Get_Size_Via_df(Display_Error)) {
2827 if (!Was_Already_Mounted)
2828 UnMount(false);
Dees_Troy51127312012-09-08 13:08:49 -04002829 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002830 }
2831 }
Dees_Troy51127312012-09-08 13:08:49 -04002832
Dees_Troy5bf43922012-09-07 16:07:55 -04002833 if (Has_Data_Media) {
2834 if (Mount(Display_Error)) {
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002835 Used = backup_exclusions.Get_Folder_Size(Mount_Point);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002836 Backup_Size = Used;
2837 int bak = (int)(Used / 1048576LLU);
Dees_Troy51127312012-09-08 13:08:49 -04002838 int fre = (int)(Free / 1048576LLU);
bigbiff bigbiff34684ff2013-12-01 21:03:45 -05002839 LOGINFO("Data backup size is %iMB, free: %iMB.\n", bak, fre);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002840 } else {
2841 if (!Was_Already_Mounted)
2842 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002843 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002844 }
Dees_Troye58d5262012-09-21 12:27:57 -04002845 } else if (Has_Android_Secure) {
2846 if (Mount(Display_Error))
Ethan Yonker3fdcda42016-11-30 12:29:37 -06002847 Backup_Size = backup_exclusions.Get_Folder_Size(Backup_Path);
Dees_Troy0550cfb2012-10-13 11:56:13 -04002848 else {
2849 if (!Was_Already_Mounted)
2850 UnMount(false);
Dees_Troye58d5262012-09-21 12:27:57 -04002851 return false;
Dees_Troy0550cfb2012-10-13 11:56:13 -04002852 }
Dees_Troy5bf43922012-09-07 16:07:55 -04002853 }
Dees_Troy0550cfb2012-10-13 11:56:13 -04002854 if (!Was_Already_Mounted)
2855 UnMount(false);
Dees_Troy5bf43922012-09-07 16:07:55 -04002856 return true;
Dees_Troy51127312012-09-08 13:08:49 -04002857}
Dees_Troy38bd7602012-09-14 13:33:53 -04002858
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002859bool TWPartition::Find_Wildcard_Block_Devices(const string& Device) {
2860 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
2861 string Path = TWFunc::Get_Path(Device);
2862 string Dev = TWFunc::Get_Filename(Device);
2863 size_t wildcard_index = Dev.find("*");
2864 if (wildcard_index != string::npos)
2865 Dev = Dev.substr(0, wildcard_index);
2866 wildcard_index = Dev.size();
2867 DIR* d = opendir(Path.c_str());
2868 if (d == NULL) {
2869 LOGINFO("Error opening '%s': %s\n", Path.c_str(), strerror(errno));
2870 return false;
2871 }
2872 struct dirent* de;
2873 while ((de = readdir(d)) != NULL) {
2874 if (de->d_type != DT_BLK || strlen(de->d_name) <= wildcard_index || strncmp(de->d_name, Dev.c_str(), wildcard_index) != 0)
2875 continue;
2876
2877 string item = Path + "/";
2878 item.append(de->d_name);
2879 if (PartitionManager.Find_Partition_By_Block_Device(item))
2880 continue;
2881 TWPartition *part = new TWPartition;
2882 char buffer[MAX_FSTAB_LINE_LENGTH];
2883 sprintf(buffer, "%s %s-%i auto defaults defaults", item.c_str(), Mount_Point.c_str(), ++mount_point_index);
2884 part->Process_Fstab_Line(buffer, false, NULL);
2885 char display[MAX_FSTAB_LINE_LENGTH];
2886 sprintf(display, "%s %i", Storage_Name.c_str(), mount_point_index);
2887 part->Storage_Name = display;
2888 part->Display_Name = display;
2889 part->Primary_Block_Device = item;
2890 part->Wildcard_Block_Device = false;
2891 part->Is_SubPartition = true;
2892 part->SubPartition_Of = Mount_Point;
2893 part->Is_Storage = Is_Storage;
2894 part->Can_Be_Mounted = true;
2895 part->Removable = true;
2896 part->Can_Be_Wiped = Can_Be_Wiped;
2897 part->Wipe_Available_in_GUI = Wipe_Available_in_GUI;
2898 part->Find_Actual_Block_Device();
2899 part->Update_Size(false);
2900 Has_SubPartition = true;
2901 PartitionManager.Output_Partition(part);
2902 PartitionManager.Add_Partition(part);
2903 }
2904 closedir(d);
2905 return (mount_point_index > 0);
2906}
2907
Dees_Troy38bd7602012-09-14 13:33:53 -04002908void TWPartition::Find_Actual_Block_Device(void) {
Ethan Yonker6e8c27a2016-12-22 17:55:57 -06002909 if (!Sysfs_Entry.empty() && Primary_Block_Device.empty() && Decrypted_Block_Device.empty()) {
2910 /* Sysfs_Entry.empty() indicates if this is a sysfs entry that begins with /device/
2911 * If we have a syfs entry then we are looking for this device from a uevent add.
2912 * The uevent add will set the primary block device based on the data we receive from
2913 * after checking for adopted storage. If the device ends up being adopted, then the
2914 * decrypted block device will be set instead of the primary block device. */
2915 Is_Present = false;
2916 return;
2917 }
2918 if (Wildcard_Block_Device && !Is_Adopted_Storage) {
2919 Is_Present = false;
2920 Actual_Block_Device = "";
2921 Can_Be_Mounted = false;
2922 if (!Find_Wildcard_Block_Devices(Primary_Block_Device)) {
2923 string Dev = Primary_Block_Device.substr(0, Primary_Block_Device.find("*"));
2924 if (TWFunc::Path_Exists(Dev)) {
2925 Is_Present = true;
2926 Can_Be_Mounted = true;
2927 Actual_Block_Device = Dev;
2928 }
2929 }
2930 return;
2931 } else if (Is_Decrypted && !Decrypted_Block_Device.empty()) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002932 Actual_Block_Device = Decrypted_Block_Device;
Ethan Yonker1b190162016-12-05 15:25:19 -06002933 if (TWFunc::Path_Exists(Decrypted_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002934 Is_Present = true;
Ethan Yonker1b190162016-12-05 15:25:19 -06002935 return;
2936 }
2937 } else if (SlotSelect && TWFunc::Path_Exists(Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix())) {
2938 Actual_Block_Device = Primary_Block_Device + PartitionManager.Get_Active_Slot_Suffix();
2939 unlink(Primary_Block_Device.c_str());
2940 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
2941 Is_Present = true;
2942 return;
Dees_Troy43d8b002012-09-17 16:00:01 -04002943 } else if (TWFunc::Path_Exists(Primary_Block_Device)) {
Dees_Troy38bd7602012-09-14 13:33:53 -04002944 Is_Present = true;
2945 Actual_Block_Device = Primary_Block_Device;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002946 return;
2947 }
Ethan Yonker1b190162016-12-05 15:25:19 -06002948 if (!Alternate_Block_Device.empty() && TWFunc::Path_Exists(Alternate_Block_Device)) {
Dees_Troy3f04d032012-10-07 18:20:09 -04002949 Actual_Block_Device = Alternate_Block_Device;
Dees_Troy38bd7602012-09-14 13:33:53 -04002950 Is_Present = true;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002951 } else {
Dees_Troy38bd7602012-09-14 13:33:53 -04002952 Is_Present = false;
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002953 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002954}
2955
2956void TWPartition::Recreate_Media_Folder(void) {
2957 string Command;
Ethan Yonker66a19492015-12-10 10:19:45 -06002958 string Media_Path = Mount_Point + "/media";
Dees_Troy38bd7602012-09-14 13:33:53 -04002959
Ethan Yonkerbd7492d2016-12-07 13:55:01 -06002960 if (Is_FBE) {
2961 LOGINFO("Not recreating media folder on FBE\n");
2962 return;
2963 }
Dees_Troy38bd7602012-09-14 13:33:53 -04002964 if (!Mount(true)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06002965 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Media_Path));
2966 } else if (!TWFunc::Path_Exists(Media_Path)) {
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002967 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker66a19492015-12-10 10:19:45 -06002968 LOGINFO("Recreating %s folder.\n", Media_Path.c_str());
2969 mkdir(Media_Path.c_str(), 0770);
xiaolu9416f4f2015-06-04 08:22:23 +08002970 string Internal_path = DataManager::GetStrValue("tw_internal_path");
2971 if (!Internal_path.empty()) {
2972 LOGINFO("Recreating %s folder.\n", Internal_path.c_str());
2973 mkdir(Internal_path.c_str(), 0770);
2974 }
2975#ifdef TW_INTERNAL_STORAGE_PATH
2976 mkdir(EXPAND(TW_INTERNAL_STORAGE_PATH), 0770);
2977#endif
Matt Mower87413642017-01-17 21:14:46 -06002978
thata3d31fb2014-12-21 22:27:40 +01002979 // Afterwards, we will try to set the
2980 // default metadata that we were hopefully able to get during
2981 // early boot.
Ethan Yonker66a19492015-12-10 10:19:45 -06002982 tw_set_default_metadata(Media_Path.c_str());
xiaolu9416f4f2015-06-04 08:22:23 +08002983 if (!Internal_path.empty())
2984 tw_set_default_metadata(Internal_path.c_str());
Matt Mower87413642017-01-17 21:14:46 -06002985
Ethan Yonker5eac2222014-06-11 12:22:55 -05002986 // Toggle mount to ensure that "internal sdcard" gets mounted
bigbiff bigbiff9c754052013-01-09 09:09:08 -05002987 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Ethan Yonker5eac2222014-06-11 12:22:55 -05002988 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Dees_Troy38bd7602012-09-14 13:33:53 -04002989 }
Dees_Troy43d8b002012-09-17 16:00:01 -04002990}
Dees_Troye58d5262012-09-21 12:27:57 -04002991
2992void TWPartition::Recreate_AndSec_Folder(void) {
Dees_Troye58d5262012-09-21 12:27:57 -04002993 if (!Has_Android_Secure)
2994 return;
Dees_Troy2673cec2013-04-02 20:22:16 +00002995 LOGINFO("Creating %s: %s\n", Backup_Display_Name.c_str(), Symlink_Path.c_str());
Dees_Troye58d5262012-09-21 12:27:57 -04002996 if (!Mount(true)) {
Ethan Yonker74db1572015-10-28 12:44:49 -05002997 gui_msg(Msg(msg::kError, "recreate_folder_err=Unable to recreate {1} folder.")(Backup_Name));
Dees_Troye58d5262012-09-21 12:27:57 -04002998 } else if (!TWFunc::Path_Exists(Symlink_Path)) {
Dees_Troy2673cec2013-04-02 20:22:16 +00002999 LOGINFO("Recreating %s folder.\n", Backup_Name.c_str());
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003000 PartitionManager.Mount_By_Path(Symlink_Mount_Point, true);
Matt Mowerfb1c4ff2014-04-16 13:43:36 -05003001 mkdir(Symlink_Path.c_str(), S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
bigbiff bigbiff9c754052013-01-09 09:09:08 -05003002 PartitionManager.UnMount_By_Path(Symlink_Mount_Point, true);
Dees_Troye58d5262012-09-21 12:27:57 -04003003 }
3004}
bigbiff7cb4c332014-11-26 20:36:07 -05003005
3006uint64_t TWPartition::Get_Max_FileSize() {
3007 uint64_t maxFileSize = 0;
3008 const uint64_t constGB = (uint64_t) 1024 * 1024 * 1024;
3009 const uint64_t constTB = (uint64_t) constGB * 1024;
3010 const uint64_t constPB = (uint64_t) constTB * 1024;
bigbiff0c532032014-12-21 13:41:26 -05003011 if (Current_File_System == "ext4")
3012 maxFileSize = 16 * constTB; //16 TB
3013 else if (Current_File_System == "vfat")
3014 maxFileSize = 4 * constGB; //4 GB
3015 else if (Current_File_System == "ntfs")
3016 maxFileSize = 256 * constTB; //256 TB
3017 else if (Current_File_System == "exfat")
3018 maxFileSize = 16 * constPB; //16 PB
3019 else if (Current_File_System == "ext3")
3020 maxFileSize = 2 * constTB; //2 TB
3021 else if (Current_File_System == "f2fs")
3022 maxFileSize = 3.94 * constTB; //3.94 TB
bigbiff7cb4c332014-11-26 20:36:07 -05003023 else
3024 maxFileSize = 100000000L;
3025 return maxFileSize - 1;
3026}
3027
bigbiffce8f83c2015-12-12 18:30:21 -05003028bool TWPartition::Flash_Image(PartitionSettings *part_settings) {
3029 string Restore_File_System, full_filename;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003030
Ethan Yonkere080c1f2016-09-19 13:50:25 -05003031 full_filename = part_settings->Backup_Folder + "/" + Backup_FileName;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003032
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003033 LOGINFO("Image filename is: %s\n", Backup_FileName.c_str());
bigbiffce8f83c2015-12-12 18:30:21 -05003034
3035 if (Backup_Method == BM_FILES) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003036 LOGERR("Cannot flash images to file systems\n");
3037 return false;
3038 } else if (!Can_Flash_Img) {
3039 LOGERR("Cannot flash images to partitions %s\n", Display_Name.c_str());
3040 return false;
3041 } else {
3042 if (!Find_Partition_Size()) {
3043 LOGERR("Unable to find partition size for '%s'\n", Mount_Point.c_str());
3044 return false;
3045 }
bigbiffce8f83c2015-12-12 18:30:21 -05003046 unsigned long long image_size = TWFunc::Get_File_Size(full_filename);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003047 if (image_size > Size) {
Ethan Yonker74db1572015-10-28 12:44:49 -05003048 LOGINFO("Size (%llu bytes) of image '%s' is larger than target device '%s' (%llu bytes)\n",
Ethan Yonkerdcf2b672016-09-13 14:41:53 -05003049 image_size, Backup_FileName.c_str(), Actual_Block_Device.c_str(), Size);
Ethan Yonker74db1572015-10-28 12:44:49 -05003050 gui_err("img_size_err=Size of image is larger than target device");
Ethan Yonker96af84a2015-01-05 14:58:36 -06003051 return false;
3052 }
bigbiffce8f83c2015-12-12 18:30:21 -05003053 if (Backup_Method == BM_DD) {
3054 if (!part_settings->adbbackup) {
3055 if (Is_Sparse_Image(full_filename)) {
3056 return Flash_Sparse_Image(full_filename);
3057 }
Ethan Yonker472f5062016-02-25 13:47:30 -06003058 }
bigbiffce8f83c2015-12-12 18:30:21 -05003059 return Raw_Read_Write(part_settings);
3060 } else if (Backup_Method == BM_FLASH_UTILS) {
3061 return Flash_Image_FI(full_filename, NULL);
Ethan Yonker472f5062016-02-25 13:47:30 -06003062 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003063 }
3064
3065 LOGERR("Unknown flash method for '%s'\n", Mount_Point.c_str());
3066 return false;
3067}
3068
Ethan Yonker472f5062016-02-25 13:47:30 -06003069bool TWPartition::Is_Sparse_Image(const string& Filename) {
HashBanged974bb2016-01-30 14:20:09 -05003070 uint32_t magic = 0;
3071 int fd = open(Filename.c_str(), O_RDONLY);
3072 if (fd < 0) {
3073 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3074 return false;
3075 }
bigbiffce8f83c2015-12-12 18:30:21 -05003076
HashBanged974bb2016-01-30 14:20:09 -05003077 if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) {
3078 gui_msg(Msg(msg::kError, "error_opening_strerr=Error opening: '{1}' ({2})")(Filename)(strerror(errno)));
3079 close(fd);
3080 return false;
3081 }
3082 close(fd);
Ethan Yonker472f5062016-02-25 13:47:30 -06003083 if (magic == SPARSE_HEADER_MAGIC)
3084 return true;
3085 return false;
3086}
3087
3088bool TWPartition::Flash_Sparse_Image(const string& Filename) {
3089 string Command;
3090
3091 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
3092
3093 Command = "simg2img '" + Filename + "' '" + Actual_Block_Device + "'";
Ethan Yonker96af84a2015-01-05 14:58:36 -06003094 LOGINFO("Flash command: '%s'\n", Command.c_str());
3095 TWFunc::Exec_Cmd(Command);
3096 return true;
3097}
3098
Ethan Yonker472f5062016-02-25 13:47:30 -06003099bool TWPartition::Flash_Image_FI(const string& Filename, ProgressTracking *progress) {
Ethan Yonker96af84a2015-01-05 14:58:36 -06003100 string Command;
Ethan Yonker472f5062016-02-25 13:47:30 -06003101 unsigned long long file_size;
Ethan Yonker96af84a2015-01-05 14:58:36 -06003102
Ethan Yonker74db1572015-10-28 12:44:49 -05003103 gui_msg(Msg("flashing=Flashing {1}...")(Display_Name));
Ethan Yonker472f5062016-02-25 13:47:30 -06003104 if (progress) {
3105 file_size = (unsigned long long)(TWFunc::Get_File_Size(Filename));
3106 progress->SetPartitionSize(file_size);
3107 }
Ethan Yonker96af84a2015-01-05 14:58:36 -06003108 // Sometimes flash image doesn't like to flash due to the first 2KB matching, so we erase first to ensure that it flashes
3109 Command = "erase_image " + MTD_Name;
3110 LOGINFO("Erase command: '%s'\n", Command.c_str());
3111 TWFunc::Exec_Cmd(Command);
3112 Command = "flash_image " + MTD_Name + " '" + Filename + "'";
3113 LOGINFO("Flash command: '%s'\n", Command.c_str());
3114 TWFunc::Exec_Cmd(Command);
Ethan Yonker472f5062016-02-25 13:47:30 -06003115 if (progress)
3116 progress->UpdateSize(file_size);
Ethan Yonker96af84a2015-01-05 14:58:36 -06003117 return true;
3118}
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003119
3120void TWPartition::Change_Mount_Read_Only(bool new_value) {
3121 Mount_Read_Only = new_value;
3122}
3123
bigbiffce8f83c2015-12-12 18:30:21 -05003124bool TWPartition::Is_Read_Only() {
3125 return Mount_Read_Only;
3126}
3127
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003128int TWPartition::Check_Lifetime_Writes() {
3129 bool original_read_only = Mount_Read_Only;
3130 int ret = 1;
3131
3132 Mount_Read_Only = true;
3133 if (Mount(false)) {
3134 Find_Actual_Block_Device();
Ethan Yonker54970bb2019-01-17 16:19:24 -06003135 string temp = Actual_Block_Device;
3136 Find_Real_Block_Device(temp, false);
3137 string block = basename(temp.c_str());
Ethan Yonkereb32b1f2015-05-18 10:23:03 -05003138 string file = "/sys/fs/" + Current_File_System + "/" + block + "/lifetime_write_kbytes";
3139 string result;
3140 if (TWFunc::Path_Exists(file)) {
3141 if (TWFunc::read_file(file, result) != 0) {
3142 LOGINFO("Check_Lifetime_Writes of '%s' failed to read_file\n", file.c_str());
3143 } else {
3144 LOGINFO("Check_Lifetime_Writes result: '%s'\n", result.c_str());
3145 if (result == "0") {
3146 ret = 0;
3147 }
3148 }
3149 } else {
3150 LOGINFO("Check_Lifetime_Writes file does not exist '%s'\n", file.c_str());
3151 }
3152 UnMount(true);
3153 } else {
3154 LOGINFO("Check_Lifetime_Writes failed to mount '%s'\n", Mount_Point.c_str());
3155 }
3156 Mount_Read_Only = original_read_only;
3157 return ret;
3158}
Ethan Yonker66a19492015-12-10 10:19:45 -06003159
3160int TWPartition::Decrypt_Adopted() {
3161#ifdef TW_INCLUDE_CRYPTO
3162 int ret = 1;
3163 Is_Adopted_Storage = false;
3164 string Adopted_Key_File = "";
3165
3166 if (!Removable)
3167 return ret;
3168
3169 int fd = open(Alternate_Block_Device.c_str(), O_RDONLY);
3170 if (fd < 0) {
3171 LOGINFO("failed to open '%s'\n", Alternate_Block_Device.c_str());
3172 return ret;
3173 }
3174 char type_guid[80];
3175 char part_guid[80];
3176
3177 if (gpt_disk_get_partition_info(fd, 2, type_guid, part_guid) == 0) {
3178 LOGINFO("type: '%s'\n", type_guid);
3179 LOGINFO("part: '%s'\n", part_guid);
3180 Adopted_GUID = part_guid;
3181 LOGINFO("Adopted_GUID '%s'\n", Adopted_GUID.c_str());
3182 if (strcmp(type_guid, TWGptAndroidExpand) == 0) {
3183 LOGINFO("android_expand found\n");
3184 Adopted_Key_File = "/data/misc/vold/expand_";
3185 Adopted_Key_File += part_guid;
3186 Adopted_Key_File += ".key";
3187 if (TWFunc::Path_Exists(Adopted_Key_File)) {
3188 Is_Adopted_Storage = true;
3189 /* Until we find a use case for this, I think it is safe
3190 * to disable USB Mass Storage whenever adopted storage
3191 * is present.
3192 */
3193 LOGINFO("Detected adopted storage, disabling USB mass storage mode\n");
3194 DataManager::SetValue("tw_has_usb_storage", 0);
3195 }
3196 }
3197 }
3198
3199 if (Is_Adopted_Storage) {
3200 string Adopted_Block_Device = Alternate_Block_Device + "p2";
3201 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3202 Adopted_Block_Device = Alternate_Block_Device + "2";
3203 if (!TWFunc::Path_Exists(Adopted_Block_Device)) {
3204 LOGINFO("Adopted block device does not exist\n");
3205 goto exit;
3206 }
3207 }
3208 LOGINFO("key file is '%s', block device '%s'\n", Adopted_Key_File.c_str(), Adopted_Block_Device.c_str());
3209 char crypto_blkdev[MAXPATHLEN];
3210 std::string thekey;
3211 int fdkey = open(Adopted_Key_File.c_str(), O_RDONLY);
3212 if (fdkey < 0) {
3213 LOGINFO("failed to open key file\n");
3214 goto exit;
3215 }
3216 char buf[512];
3217 ssize_t n;
3218 while ((n = read(fdkey, &buf[0], sizeof(buf))) > 0) {
3219 thekey.append(buf, n);
3220 }
3221 close(fdkey);
3222 unsigned char* key = (unsigned char*) thekey.data();
3223 cryptfs_revert_ext_volume(part_guid);
3224
3225 ret = cryptfs_setup_ext_volume(part_guid, Adopted_Block_Device.c_str(), key, thekey.size(), crypto_blkdev);
3226 if (ret == 0) {
3227 LOGINFO("adopted storage new block device: '%s'\n", crypto_blkdev);
3228 Decrypted_Block_Device = crypto_blkdev;
3229 Is_Decrypted = true;
3230 Is_Encrypted = true;
3231 Find_Actual_Block_Device();
Kjell Braden3126a112016-06-19 16:58:15 +00003232 if (!Mount_Storage_Retry(false)) {
Ethan Yonker66a19492015-12-10 10:19:45 -06003233 LOGERR("Failed to mount decrypted adopted storage device\n");
3234 Is_Decrypted = false;
3235 Is_Encrypted = false;
3236 cryptfs_revert_ext_volume(part_guid);
3237 ret = 1;
3238 } else {
Ethan Yonkerfcf3f242016-02-16 12:30:26 -06003239 UnMount(false);
3240 Has_Android_Secure = false;
3241 Symlink_Path = "";
3242 Symlink_Mount_Point = "";
3243 Backup_Name = Mount_Point.substr(1);
3244 Backup_Path = Mount_Point;
3245 TWPartition* sdext = PartitionManager.Find_Partition_By_Path("/sd-ext");
3246 if (sdext && sdext->Actual_Block_Device == Adopted_Block_Device) {
3247 LOGINFO("Removing /sd-ext from partition list due to adopted storage\n");
3248 PartitionManager.Remove_Partition_By_Path("/sd-ext");
3249 }
Ethan Yonker66a19492015-12-10 10:19:45 -06003250 Setup_Data_Media();
3251 Recreate_Media_Folder();
3252 Wipe_Available_in_GUI = true;
3253 Wipe_During_Factory_Reset = true;
3254 Can_Be_Backed_Up = true;
3255 Can_Encrypt_Backup = true;
3256 Use_Userdata_Encryption = true;
3257 Is_Storage = true;
3258 Storage_Name = "Adopted Storage";
3259 Is_SubPartition = true;
3260 SubPartition_Of = "/data";
3261 PartitionManager.Add_MTP_Storage(MTP_Storage_ID);
3262 DataManager::SetValue("tw_has_adopted_storage", 1);
3263 }
3264 } else {
3265 LOGERR("Failed to setup adopted storage decryption\n");
3266 }
3267 }
3268exit:
Matt Mower06543e32017-01-06 15:25:26 -06003269 close(fd);
Ethan Yonker66a19492015-12-10 10:19:45 -06003270 return ret;
3271#else
3272 LOGINFO("Decrypt_Adopted: no crypto support\n");
3273 return 1;
3274#endif
3275}
3276
3277void TWPartition::Revert_Adopted() {
3278#ifdef TW_INCLUDE_CRYPTO
3279 if (!Adopted_GUID.empty()) {
3280 PartitionManager.Remove_MTP_Storage(Mount_Point);
3281 UnMount(false);
3282 cryptfs_revert_ext_volume(Adopted_GUID.c_str());
3283 Is_Adopted_Storage = false;
3284 Is_Encrypted = false;
3285 Is_Decrypted = false;
3286 Decrypted_Block_Device = "";
3287 Find_Actual_Block_Device();
3288 Wipe_During_Factory_Reset = false;
3289 Can_Be_Backed_Up = false;
3290 Can_Encrypt_Backup = false;
3291 Use_Userdata_Encryption = false;
3292 Is_SubPartition = false;
3293 SubPartition_Of = "";
3294 Has_Data_Media = false;
3295 Storage_Path = Mount_Point;
3296 if (!Symlink_Mount_Point.empty()) {
3297 TWPartition* Dat = PartitionManager.Find_Partition_By_Path("/data");
3298 if (Dat) {
3299 Dat->UnMount(false);
3300 Dat->Symlink_Mount_Point = Symlink_Mount_Point;
3301 }
3302 Symlink_Mount_Point = "";
3303 }
3304 }
3305#else
3306 LOGINFO("Revert_Adopted: no crypto support\n");
3307#endif
3308}
bigbiff bigbiffb5ecaad2017-03-20 18:53:53 -04003309
3310void TWPartition::Set_Backup_FileName(string fname) {
3311 Backup_FileName = fname;
3312}
3313
3314string TWPartition::Get_Backup_Name() {
3315 return Backup_Name;
3316}