4 * Copyright (c) 2012 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: Garima Shrivastava<garima.s@samsung.com>
7 * Jyotsna Dhumale <jyotsna.a@samsung.com>
8 * Venkatesha Sarpangala <sarpangala.v@samsung.com>
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
29 #include "app2sd_internals.h"
31 #define DMCRYPT_ITER_TIME 50
32 #define DMCRYPT_KEY_LEN 128
34 static int _app2sd_make_directory(const char *path, uid_t uid)
38 mode_t mode = DIR_PERMS;
40 struct passwd *pwd_result;
43 ret = _app2sd_delete_directory(path);
45 _E("unable to delete (%s), errno(%d)", path, errno);
46 return APP2EXT_ERROR_DELETE_DIRECTORY;
49 ret = getpwuid_r(uid, &pwd, buf, sizeof(buf), &pwd_result);
50 if (ret != 0 || pwd_result == NULL) {
51 _E("get uid failed(%d)", ret);
52 return APP2EXT_ERROR_ACCESS_FILE;
54 _D("uid(%d), gid(%d)", uid, pwd.pw_gid);
56 /* create directory */
57 ret = mkdir(path, mode);
59 if (errno != EEXIST) {
60 _E("create directory failed, error is (%d)", errno);
61 return APP2EXT_ERROR_CREATE_DIRECTORY;
65 fd = open(path, O_RDONLY|O_DIRECTORY);
67 _E("can't open path(%s)", path);
68 return APP2EXT_ERROR_OPEN_DIR;
71 ret = fchmod(fd, 0755);
73 _E("change file permission error");
75 return APP2EXT_ERROR_ACCESS_FILE;
78 ret = fchown(fd, uid, pwd.pw_gid);
80 _E("change file owner error");
82 return APP2EXT_ERROR_ACCESS_FILE;
87 return APP2EXT_SUCCESS;
90 int _app2sd_dmcrypt_setup_device(const char *pkgid,
91 const char *loopback_device, bool is_dup, uid_t uid)
95 char dmcrypt_setup_cmd[BUF_SIZE];
96 char err_buf[BUF_SIZE];
98 if (pkgid == NULL || loopback_device == NULL) {
99 _E("invalid argument");
100 return APP2EXT_ERROR_INVALID_ARGUMENTS;
103 /* get password for dmcrypt encryption */
104 ret = _app2sd_initialize_db();
106 _E("app2sd db initialize failed");
107 return APP2EXT_ERROR_DB_INITIALIZE;
110 passwd = _app2sd_get_password_from_db(pkgid, uid);
111 if (passwd == NULL) {
113 _E("no password found for (%s)", pkgid);
114 return APP2EXT_ERROR_SQLITE_REGISTRY;
116 passwd = _app2sd_generate_password();
117 if (passwd == NULL) {
118 _E("unable to generate password");
119 return APP2EXT_ERROR_PASSWD_GENERATION;
122 ret = _app2sd_set_info_in_db(pkgid, passwd, loopback_device,
125 _E("unable to save password");
127 return APP2EXT_ERROR_SQLITE_REGISTRY;
131 snprintf(dmcrypt_setup_cmd, sizeof(dmcrypt_setup_cmd),
132 "/bin/echo '%s' | /sbin/cryptsetup -q -i %d "
133 "-c aes-cbc-lmk -s %d --align-payload=8 luksFormat %s",
134 passwd, DMCRYPT_ITER_TIME, DMCRYPT_KEY_LEN,
137 ret = system(dmcrypt_setup_cmd);
139 strerror_r(errno, err_buf, sizeof(err_buf));
140 _E("Error setting up dmcrypt on app2sd file, error:%s, ret:%d",
142 return APP2EXT_ERROR_SETUP_DMCRYPT_DEVICE;
148 int _app2sd_dmcrypt_open_device(const char *pkgid, const char *loopback_device,
149 bool is_dup, uid_t uid, char **dev_node)
153 char dmcrypt_open_cmd[BUF_SIZE];
154 char dev_name[BUF_SIZE];
157 if (pkgid == NULL || loopback_device == NULL) {
158 _E("invalid argument");
159 return APP2EXT_ERROR_INVALID_ARGUMENTS;
163 snprintf(dev_name, sizeof(dev_name), "%s.new_%d", pkgid, uid);
165 snprintf(dev_name, sizeof(dev_name), "%s_%d", pkgid, uid);
167 /* get password for dmcrypt encryption */
168 ret = _app2sd_initialize_db();
170 _E("app2sd db initialize failed");
171 return APP2EXT_ERROR_DB_INITIALIZE;
174 passwd = _app2sd_get_password_from_db(pkgid, uid);
175 if (passwd == NULL) {
176 _E("no password found for [%s]", pkgid);
177 return APP2EXT_ERROR_SQLITE_REGISTRY;
180 if (_app2sd_check_is_luks_device(loopback_device) == 0) {
181 _W("legacy image format!");
182 snprintf(dmcrypt_open_cmd, sizeof(dmcrypt_open_cmd),
183 "/bin/echo '%s' | /sbin/cryptsetup "
184 "-M plain -c aes-cbc-plain -h plain open %s %s",
185 passwd, loopback_device, dev_name);
187 snprintf(dmcrypt_open_cmd, sizeof(dmcrypt_open_cmd),
188 "/bin/echo '%s' | /sbin/cryptsetup -q luksOpen "
190 passwd, loopback_device, dev_name);
194 ret = system(dmcrypt_open_cmd);
196 strerror_r(errno, buf, sizeof(buf));
197 _E("error opening dmcrypt device, error: [%s]", buf);
198 return APP2EXT_ERROR_OPEN_DMCRYPT_DEVICE;
201 snprintf(buf, sizeof(buf), "/dev/mapper/%s", dev_name);
202 *dev_node = strdup(buf);
203 if (*dev_node == NULL) {
204 _E("memory alloc failed");
205 return APP2EXT_ERROR_OPEN_DMCRYPT_DEVICE;
211 int _app2sd_dmcrypt_close_device(const char *pkgid, uid_t uid)
214 char dev_node[BUF_SIZE];
215 char dmcrypt_close_cmd[BUF_SIZE];
216 char err_buf[BUF_SIZE];
220 _E("invalid argument");
221 return APP2EXT_ERROR_INVALID_ARGUMENTS;
224 t_dev_node = _app2sd_find_associated_dmcrypt_device_node(pkgid, uid);
226 _W("no associated device node(%s_%d) found", pkgid, uid);
227 return APP2EXT_ERROR_DMCRYPT_DEVICE_UNAVAILABLE;
232 snprintf(dev_node, sizeof(dev_node), "/dev/mapper/%s_%d", pkgid, uid);
233 snprintf(dmcrypt_close_cmd, sizeof(dmcrypt_close_cmd),
234 "/sbin/cryptsetup -q luksClose %s", dev_node);
235 ret = system(dmcrypt_close_cmd);
237 strerror_r(errno, err_buf, sizeof(err_buf));
238 _E("error closing dmcrypt on app2sd file: %s", err_buf);
239 return APP2EXT_ERROR_CLOSE_DMCRYPT_DEVICE;
245 char *_app2sd_find_associated_dmcrypt_device_node(const char *pkgid, uid_t uid)
250 snprintf(buf, sizeof(buf), "/dev/mapper/%s_%d", pkgid, uid);
251 if (access(buf, F_OK) == 0) {
252 dev_node = strdup(buf);
253 if (dev_node == NULL) {
254 _E("memory alloc failed");
257 _D("device_node: (%s)", dev_node);
260 _D("can not access dev_node(%s), errno(%d)", buf, errno);
265 char *_app2sd_dmcrypt_duplicate_encryption_setup(const char *pkgid,
266 const char *temp_loopback_device, uid_t uid)
271 if (pkgid == NULL || temp_loopback_device == NULL) {
272 _E("invalid argument");
276 ret = _app2sd_dmcrypt_setup_device(pkgid, temp_loopback_device, true,
279 _E("dmcrypt setup device error(%d)", ret);
283 ret = _app2sd_dmcrypt_open_device(pkgid, temp_loopback_device, true,
286 _E("dmcrypt open device error");
293 int _app2sd_create_loopback_device(const char *pkgid,
294 const char *loopback_device, int size)
297 char command[FILENAME_MAX];
300 const char *argv[] = { "/bin/dd", "if=/dev/zero", command,
301 "bs=1M", buff, NULL };
303 if (pkgid == NULL || size <= 0) {
304 _E("invalid argument");
305 return APP2EXT_ERROR_INVALID_ARGUMENTS;
308 fp = fopen(loopback_device, "r+");
310 _W("encrypted file already exists (%s)", loopback_device);
312 return APP2EXT_ERROR_PKG_EXISTS;
315 snprintf(command, sizeof(command), "of=%s", loopback_device);
316 snprintf(buff, sizeof(buff), "count=%d", size);
318 ret = _xsystem(argv);
320 _E("command (%s) failed, ret(%d), errno(%d)",
321 command, ret, errno);
326 int _app2sd_delete_loopback_device(const char *loopback_device)
330 ret = unlink(loopback_device);
332 if (errno == ENOENT) {
333 _W("unable to access file (%s)", loopback_device);
335 _E("unable to delete (%s)", loopback_device);
336 return APP2EXT_ERROR_DELETE_LOOPBACK_DEVICE;
340 return APP2EXT_SUCCESS;
343 int _app2sd_create_file_system(const char *device_path)
348 const char *argv[] = { "/sbin/mkfs.ext4", device_path, NULL };
350 if (device_path == NULL) {
352 return APP2EXT_ERROR_INVALID_ARGUMENTS;
355 /* Format the filesystem [create a filesystem]*/
356 fp = fopen(device_path, "r+");
358 strerror_r(errno, err_buf, sizeof(err_buf));
359 _E("unable to access (%s) error is (%d, %s)",
360 device_path, errno, err_buf);
361 return APP2EXT_ERROR_ACCESS_FILE;
365 ret = _xsystem(argv);
367 strerror_r(errno, err_buf, sizeof(err_buf));
368 _E("creating file system failed, error is (%s)", err_buf);
369 return APP2EXT_ERROR_CREATE_FS;
374 static int _app2sd_create_dir_with_link(const char *application_path,
375 const char *pkgid, const char *dir_name, uid_t uid)
378 char app_dir_mmc_path[FILENAME_MAX];
379 char app_dir_path[FILENAME_MAX];
381 snprintf(app_dir_mmc_path, sizeof(app_dir_mmc_path), "%s/.mmc/%s",
382 application_path, dir_name);
383 snprintf(app_dir_path, sizeof(app_dir_path), "%s/%s",
384 application_path, dir_name);
386 ret = _app2sd_make_directory(app_dir_mmc_path, uid);
388 _E("create directory failed");
389 return APP2EXT_ERROR_CREATE_DIRECTORY;
392 ret = symlink(app_dir_mmc_path, app_dir_path);
394 if (errno == EEXIST) {
395 _D("file with symlink name present (%s)", app_dir_path);
397 _E("symbolic link creation failed, error: %d", errno);
398 return APP2EXT_ERROR_CREATE_SYMLINK;
402 return APP2EXT_SUCCESS;
405 static int _app2sd_create_directory_entry(const char *application_path,
406 const char *pkgid, GList *dir_list, uid_t uid)
410 app2ext_dir_details *dir_detail;
412 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
413 dir_detail = (app2ext_dir_details *)list->data;
414 if (dir_detail == NULL || dir_detail->name == NULL ||
415 dir_detail->type != APP2EXT_DIR_RO)
417 ret = _app2sd_create_dir_with_link(application_path,
418 pkgid, dir_detail->name, uid);
422 return APP2EXT_SUCCESS;
425 int _app2sd_mount_app_content(const char *application_path, const char *pkgid,
426 const char *dev, int mount_type, GList *dir_list,
427 app2sd_cmd cmd, uid_t uid)
431 char app_mmc_path[FILENAME_MAX];
432 char temp_path[FILENAME_MAX];
434 struct timespec time = {
436 .tv_nsec = 1000 * 1000 * 200
440 _E("input param is NULL (%s)", dev);
441 return APP2EXT_ERROR_INVALID_ARGUMENTS;
444 /* check directory existence */
445 fd = open(application_path, O_RDONLY | O_DIRECTORY);
447 _E("path(%s) error(%d)", application_path, errno);
448 return APP2EXT_ERROR_OPEN_DIR;
452 snprintf(app_mmc_path, sizeof(app_mmc_path), "%s/.mmc",
454 fd = open(app_mmc_path, O_RDONLY | O_DIRECTORY);
456 _E("path(%s) error(%d)", app_mmc_path, errno);
457 return APP2EXT_ERROR_OPEN_DIR;
461 nanosleep(&time, NULL); /* 200ms sleep */
462 _D("give a delay for mount");
464 switch (mount_type) {
466 ret = mount(dev, app_mmc_path, FS_TYPE,
467 MS_MGC_VAL | MS_RDONLY | MS_NOSUID, NULL);
469 _E("read only mount failed, errono is (%d), "
470 "dev is (%s) path is (%s)",
471 errno, dev, app_mmc_path);
472 ret = APP2EXT_ERROR_MOUNT;
476 ret = mount(dev, app_mmc_path, FS_TYPE, MS_MGC_VAL | MS_NOSUID,
479 _E("read write mount failed, errono is (%d)", errno);
480 ret = APP2EXT_ERROR_MOUNT;
483 case MOUNT_TYPE_RW_NOEXEC:
484 ret = mount(dev, app_mmc_path, FS_TYPE,
485 MS_MGC_VAL | MS_NOEXEC | MS_NOSUID, NULL);
487 _E("rwnx mount failed errono is (%d)", errno);
488 ret = APP2EXT_ERROR_MOUNT;
491 case MOUNT_TYPE_RD_REMOUNT:
492 ret = mount(dev, app_mmc_path, FS_TYPE,
493 MS_MGC_VAL | MS_RDONLY | MS_REMOUNT | MS_NOSUID,
496 _E("read remount failed errono is (%d)", errno);
497 ret = APP2EXT_ERROR_MOUNT;
500 case MOUNT_TYPE_RW_REMOUNT:
501 ret = mount(dev, app_mmc_path, FS_TYPE,
502 MS_MGC_VAL | MS_REMOUNT | MS_NOSUID, NULL);
503 strerror_r(errno, err_buf, sizeof(err_buf));
505 _E("read write remount failed errono(%d), errstr(%s)",
507 ret = APP2EXT_ERROR_MOUNT;
511 _E("invalid mount type");
515 if (cmd == APP2SD_PRE_INSTALL || cmd == APP2SD_MOVE_APP_TO_MMC ||
516 cmd == APP2SD_PRE_UPGRADE) {
517 ret = _app2sd_create_directory_entry(application_path,
518 pkgid, dir_list, uid);
521 if (mount_type != MOUNT_TYPE_RD &&
522 mount_type != MOUNT_TYPE_RD_REMOUNT) {
523 /* change lost+found permission */
524 snprintf(temp_path, sizeof(temp_path), "%s/lost+found",
526 ret = _app2sd_make_directory(temp_path, uid);
528 _E("create directory(%s) failed", temp_path);
529 return APP2EXT_ERROR_CREATE_DIRECTORY;
536 int _app2sd_unmount_app_content(const char *application_path)
539 char app_mmc_path[FILENAME_MAX];
542 snprintf(app_mmc_path, sizeof(app_mmc_path), "%s/.mmc",
544 ret = umount(app_mmc_path);
546 strerror_r(errno, err_buf, sizeof(err_buf));
547 _D("unable to umount the dir, ret(%d) error(%d, %s)",
548 ret, errno, err_buf);
554 static int _app2sd_move_to_archive(const char *src_path, const char *arch_path)
559 ret = _app2sd_copy_dir(src_path, arch_path);
560 if (ret && ret != APP2EXT_ERROR_ACCESS_FILE) {
561 strerror_r(errno, err_buf, sizeof(err_buf));
562 _E("unable to copy from (%s) to (%s), err is (%s)",
563 src_path, arch_path, err_buf);
564 return APP2EXT_ERROR_MOVE;
567 ret = _app2sd_delete_directory(src_path);
569 _E("unable to delete (%s)", src_path);
570 return APP2EXT_ERROR_DELETE_DIRECTORY;
576 static int _app2sd_move_app_to_external(const char *pkgid, GList *dir_list,
577 uid_t uid, char *mmc_path, char **image_path)
580 mode_t mode = DIR_PERMS;
581 char temp_dir_path[FILENAME_MAX];
582 char app_mmc_path[FILENAME_MAX];
583 char app_archive_path[FILENAME_MAX];
584 char application_path[FILENAME_MAX];
585 char loopback_device[FILENAME_MAX];
586 unsigned long long total_size = 0;
593 app2ext_dir_details *dir_detail;
596 ret = _app2sd_get_loopback_device_path(mmc_path, pkgid, uid,
597 loopback_device, sizeof(loopback_device));
601 _app2sd_set_application_path(pkgid, uid, application_path,
602 sizeof(application_path));
604 /* check whether application is in external memory or not */
605 fp = fopen(loopback_device, "r+");
607 _W("Already %s entry is present in the SD Card, "
608 "delete entry and go on without return", pkgid);
610 _app2sd_force_clean(pkgid, application_path, loopback_device,
614 snprintf(app_mmc_path, sizeof(app_mmc_path), "%s/.mmc",
616 snprintf(app_archive_path, sizeof(app_archive_path), "%s/.archive",
619 ret = mkdir(app_mmc_path, mode);
621 if (errno != EEXIST) {
622 _E("unable to create directory for archiving,"
623 " error(%d)", errno);
624 return APP2EXT_ERROR_CREATE_DIRECTORY;
628 ret = mkdir(app_archive_path, mode);
630 if (errno != EEXIST) {
631 _E("unable to create directory for archiving,"
632 " error(%d)", errno);
633 return APP2EXT_ERROR_CREATE_DIRECTORY;
637 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
638 dir_detail = (app2ext_dir_details *)list->data;
639 if (dir_detail == NULL || dir_detail->name == NULL ||
640 dir_detail->type != APP2EXT_DIR_RO)
642 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
643 application_path, dir_detail->name);
644 _D("cal size of app dirs, temp_dir_path(%s)", temp_dir_path);
645 total_size += _app2sd_calculate_dir_size(temp_dir_path);
648 reqd_size = ((total_size) / (1024 * 1024)) + 2;
649 reqd_disk_size = reqd_size + ceil(reqd_size * 0.2);
651 /* find avialable free memory in the MMC card */
652 ret = _app2sd_get_available_free_memory(mmc_path, &free_mmc_mem);
654 _E("unable to get available free memory in MMC (%d)", ret);
655 return APP2EXT_ERROR_MMC_STATUS;
657 /* if avaialalbe free memory in MMC is less than
658 * required size + 5MB, return error
660 if (reqd_disk_size > free_mmc_mem) {
661 _E("insufficient memory in MMC for "
662 "application installation (%d)", ret);
663 return APP2EXT_ERROR_MMC_INSUFFICIENT_MEMORY;
665 /* create a loopback device */
666 ret = _app2sd_create_loopback_device(pkgid, loopback_device,
667 (reqd_disk_size + PKG_BUF_SIZE));
669 _E("loopback node creation failed");
673 ret = _app2sd_dmcrypt_setup_device(pkgid, loopback_device, false, uid);
675 _E("dmcrypt setup device error(%d)", ret);
676 return APP2EXT_ERROR_SETUP_DMCRYPT_DEVICE;
679 ret = _app2sd_dmcrypt_open_device(pkgid, loopback_device, false,
682 _E("dmcrypt open device error");
683 return APP2EXT_ERROR_OPEN_DMCRYPT_DEVICE;
685 /* format the loopback file system */
686 ret = _app2sd_create_file_system(device_node);
688 _E("create ext4 filesystem failed");
689 ret = APP2EXT_ERROR_CREATE_FS;
693 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
694 dir_detail = (app2ext_dir_details *)list->data;
695 if (dir_detail == NULL || dir_detail->name == NULL ||
696 dir_detail->type != APP2EXT_DIR_RO)
698 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
699 application_path, dir_detail->name);
700 _D("app2archive, temp_dir_path(%s)", temp_dir_path);
701 ret = _app2sd_move_to_archive(temp_dir_path, app_archive_path);
703 _E("unable to copy from (%s) to (%s)",
704 temp_dir_path, app_archive_path);
709 /* mount the loopback encrypted pseudo device on
710 * application installation path as with Read Write permission
712 ret = _app2sd_mount_app_content(application_path, pkgid, device_node,
713 MOUNT_TYPE_RW, dir_list, APP2SD_MOVE_APP_TO_MMC, uid);
719 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
720 dir_detail = (app2ext_dir_details *)list->data;
721 if (dir_detail == NULL || dir_detail->name == NULL ||
722 dir_detail->type != APP2EXT_DIR_RO)
724 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
725 app_archive_path, dir_detail->name);
726 _D("archive2mmc, temp_dir_path(%s)", temp_dir_path);
727 ret = _app2sd_copy_dir(temp_dir_path, app_mmc_path);
729 if (ret == APP2EXT_ERROR_ACCESS_FILE) {
730 _E("unable to access (%s)", temp_dir_path);
732 strerror_r(errno, err_buf, sizeof(err_buf));
733 _E("unable to copy from (%s) to (%s),"
734 " error is (%s)", temp_dir_path,
735 app_mmc_path, err_buf);
739 ret = _app2sd_delete_directory(temp_dir_path);
741 _E("unable to delete (%s)", temp_dir_path);
746 ret = _app2sd_delete_directory(app_archive_path);
748 _E("unable to delete (%s)", app_archive_path);
749 ret = APP2EXT_ERROR_DELETE_DIRECTORY;
753 *image_path = strdup(loopback_device);
754 return APP2EXT_SUCCESS;
764 static int _app2sd_move_app_to_internal(const char *pkgid, GList *dir_list,
765 uid_t uid, char *mmc_path)
768 mode_t mode = DIR_PERMS;
769 char temp_dir_path[FILENAME_MAX];
770 char app_mmc_path[FILENAME_MAX];
771 char app_archive_path[FILENAME_MAX];
772 char application_path[FILENAME_MAX];
773 char loopback_device[FILENAME_MAX];
777 app2ext_dir_details *dir_detail;
779 int free_internal_mem;
780 unsigned long long temp = 0;
784 ret = _app2sd_get_loopback_device_path(mmc_path, pkgid, uid,
785 loopback_device, sizeof(loopback_device));
789 _app2sd_set_application_path(pkgid, uid, application_path,
790 sizeof(application_path));
792 /* check whether application is in external memory or not */
793 fp = fopen(loopback_device, "r+");
795 _E("application (%s) is not installed on SD Card",
797 return APP2EXT_ERROR_FILE_ABSENT;
801 /* find avialable free memory in the internal storage */
802 ret = _app2sd_get_available_free_memory(INTERNAL_STORAGE_PATH,
805 _E("unable to get available free memory in internal (%d)", ret);
806 return APP2EXT_ERROR_MMC_STATUS;
809 fp = fopen(loopback_device, "r+");
811 _E("app entry is not present in SD card");
812 return APP2EXT_ERROR_INVALID_PACKAGE;
816 /* get installed app size*/
817 temp = _app2sd_calculate_file_size(loopback_device);
818 reqd_size = (int)((temp) / (1024 * 1024));
819 _D("reqd size is (%d)", reqd_size);
821 if (reqd_size == 0) {
822 _E("app entry is not present in SD Card");
823 return APP2EXT_ERROR_LOOPBACK_DEVICE_UNAVAILABLE;
826 _I("reqd size: (%d)MB, free internal mem: (%d)MB",
827 reqd_size, free_internal_mem);
829 /* if avaialalbe free memory in internal storage is
830 * less than required size, return error
832 if (reqd_size > free_internal_mem) {
833 _E("innsufficient memory in internal storage"
834 " for application installation (%d)", ret);
835 return APP2EXT_ERROR_MMC_INSUFFICIENT_MEMORY;
839 _app2sd_find_associated_dmcrypt_device_node(pkgid, uid);
840 if (device_node == NULL) {
841 /* do loopback setup */
842 ret = _app2sd_dmcrypt_open_device(pkgid, loopback_device,
843 false, uid, &device_node);
845 _E("dmcrypt open device error(%d)", ret);
846 return APP2EXT_ERROR_OPEN_DMCRYPT_DEVICE;
848 mount_type = MOUNT_TYPE_RW;
850 mount_type = MOUNT_TYPE_RW_REMOUNT;
853 ret = _app2sd_mount_app_content(application_path,
854 pkgid, device_node, mount_type,
855 dir_list, APP2SD_MOVE_APP_TO_PHONE, uid);
858 ret = APP2EXT_ERROR_MOUNT_PATH;
862 snprintf(app_mmc_path, sizeof(app_mmc_path), "%s/.mmc",
864 snprintf(app_archive_path, sizeof(app_archive_path), "%s/.archive",
867 ret = mkdir(app_archive_path, mode);
869 if (errno != EEXIST) {
870 _E("unable to create directory for archiving,"
871 " error(%d)", errno);
872 ret = APP2EXT_ERROR_CREATE_DIRECTORY;
877 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
878 dir_detail = (app2ext_dir_details *)list->data;
879 if (dir_detail == NULL || dir_detail->name == NULL ||
880 dir_detail->type != APP2EXT_DIR_RO)
883 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
884 app_mmc_path, dir_detail->name);
885 _D("mmc2archive, temp_dir_path(%s)", temp_dir_path);
886 ret = _app2sd_copy_dir(temp_dir_path, app_archive_path);
888 if (ret == APP2EXT_ERROR_ACCESS_FILE) {
889 _E("unable to access (%s)", temp_dir_path);
891 strerror_r(errno, err_buf, sizeof(err_buf));
892 _E("unable to copy from (%s) to (%s),"
893 "error is (%s)", temp_dir_path,
894 app_archive_path, err_buf);
898 /* delete the symbolic link files [bin, lib, res]*/
899 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
900 application_path, dir_detail->name);
901 _D("unlink, temp_dir_path(%s)", temp_dir_path);
902 ret = unlink(temp_dir_path);
904 if (errno == ENOENT) {
905 _W("(%s) does not exist", temp_dir_path);
907 _E("unable to remove the symbolic link file "
908 "(%s), it is already unlinked",
913 /* Copy content to destination */
914 snprintf(temp_dir_path, sizeof(temp_dir_path), "%s/%s",
915 app_archive_path, dir_detail->name);
916 _D("archive2app, temp_dir_path(%s)", temp_dir_path);
917 ret = _app2sd_copy_dir(temp_dir_path, application_path);
919 if (ret == APP2EXT_ERROR_ACCESS_FILE) {
920 _E("unable to access (%s)", temp_dir_path);
922 strerror_r(errno, err_buf, sizeof(err_buf));
923 _E("unable to copy from (%s) to (%s), "
924 "error is (%s)", temp_dir_path,
925 application_path, err_buf);
931 _D("copying file completed");
932 ret = _app2sd_unmount_app_content(application_path);
934 _E("unable to unmount SD directory for app (%s)", pkgid);
936 ret = _app2sd_dmcrypt_close_device(pkgid, uid);
938 _E("close dmcrypt device error(%d)", ret);
940 ret = _app2sd_delete_loopback_device(loopback_device);
942 _E("unable to delete the loopback device for (%s)", pkgid);
944 ret = _app2sd_delete_directory(app_mmc_path);
946 _E("unable to delete (%s)", app_mmc_path);
948 ret = _app2sd_delete_directory(app_archive_path);
950 _E("unable to delete (%s)", app_archive_path);
952 /* remove passwrd from DB */
953 ret = _app2sd_initialize_db();
955 _E("app2sd db initialize failed");
957 ret = _app2sd_remove_info_from_db(pkgid, uid);
959 _E("cannot remove info from db");
961 return APP2EXT_SUCCESS;
970 int _app2sd_usr_move_app(const char *pkgid, app2ext_move_type move_type,
971 GList *dir_list, uid_t uid, char *mmc_path, char **image_path)
976 case APP2EXT_MOVE_TO_EXT:
977 ret = _app2sd_move_app_to_external(pkgid, dir_list,
978 uid, mmc_path, image_path);
980 _E("move app to external memory failed(%d)", ret);
984 case APP2EXT_MOVE_TO_PHONE:
985 ret = _app2sd_move_app_to_internal(pkgid, dir_list,
988 _E("move app to internal memory failed(%d)", ret);
993 _E("invalid argument");
994 return APP2EXT_ERROR_INVALID_ARGUMENTS;
1000 int _app2sd_copy_ro_content(const char *src, const char *dest, GList *dir_list)
1002 char path[FILENAME_MAX];
1005 app2ext_dir_details *dir_detail;
1007 for (list = g_list_first(dir_list); list; list = g_list_next(list)) {
1008 dir_detail = (app2ext_dir_details *)list->data;
1009 if (dir_detail == NULL || dir_detail->name == NULL ||
1010 dir_detail->type != APP2EXT_DIR_RO)
1013 snprintf(path, sizeof(path), "%s/%s", src, dir_detail->name);
1014 ret = _app2sd_copy_dir(path, dest);
1016 if (ret == APP2EXT_ERROR_ACCESS_FILE) {
1017 _E("unable to access (%s)", path);
1019 _E("unable to copy from (%s) "
1020 "to (%s), errno is (%d)",
1022 return APP2EXT_ERROR_MOVE;
1027 return APP2EXT_SUCCESS;
1030 int _app2sd_duplicate_device(const char *pkgid, const char *loopback_device,
1031 const char *temp_pkgid, const char *temp_application_path,
1032 const char *temp_loopback_device, GList *dir_list,
1033 char *dev_node, int size, uid_t uid)
1038 /* create a new loopback device */
1039 ret = _app2sd_create_loopback_device(temp_pkgid,
1040 temp_loopback_device, (size + PKG_BUF_SIZE));
1042 _E("package already present");
1046 /* perform loopback encryption setup */
1047 dev_node = _app2sd_dmcrypt_duplicate_encryption_setup(pkgid,
1048 temp_loopback_device, uid);
1050 _E("dmcrypt duplicate encryption setup failed");
1051 _app2sd_delete_loopback_device(temp_loopback_device);
1052 return APP2EXT_ERROR_SETUP_DMCRYPT_DEVICE;
1055 /* format the loopback file system */
1056 ret = _app2sd_create_file_system(dev_node);
1058 _E("creating fs failed");
1059 err_res = APP2EXT_ERROR_CREATE_FS;
1062 _D("create filesystem SUCCESS");
1064 /* do mounting for new dev*/
1065 ret = _app2sd_mount_app_content(temp_application_path, pkgid,
1066 dev_node, MOUNT_TYPE_RW, dir_list,
1067 APP2SD_PRE_UPGRADE, uid);
1069 _E("remount failed");
1070 err_res = APP2EXT_ERROR_MOUNT_PATH;
1074 return APP2EXT_SUCCESS;
1078 ret = _app2sd_dmcrypt_close_device(temp_pkgid, uid);
1080 _E("close dmcrypt device error(%d)", ret);
1081 _app2sd_delete_loopback_device(temp_loopback_device);
1088 int _app2sd_update_loopback_device_size(const char *pkgid,
1089 const char *loopback_device, const char *application_path,
1090 const char *temp_pkgid, const char *temp_loopback_device,
1091 const char *temp_application_path, int size, GList *dir_list,
1095 char *old_device_node;
1097 char app_mmc_path[FILENAME_MAX];
1098 char temp_app_mmc_path[FILENAME_MAX];
1101 ret = _app2sd_duplicate_device(pkgid, loopback_device, temp_pkgid,
1102 temp_application_path, temp_loopback_device,
1103 dir_list, NULL, size, uid);
1105 _E("creating duplicate device failed");
1109 /* get the associated device node for SD card applicatione */
1111 _app2sd_find_associated_dmcrypt_device_node(pkgid, uid);
1112 if (old_device_node == NULL) {
1113 /* do loopback setup */
1114 ret = _app2sd_dmcrypt_open_device(pkgid, loopback_device,
1115 false, uid, &old_device_node);
1117 _E("dmcrypt open device error");
1118 err_res = APP2EXT_ERROR_OPEN_DMCRYPT_DEVICE;
1121 mount_type = MOUNT_TYPE_RW;
1123 mount_type = MOUNT_TYPE_RW_REMOUNT;
1127 ret = _app2sd_mount_app_content(application_path, pkgid,
1128 old_device_node, mount_type, dir_list,
1129 APP2SD_PRE_UPGRADE, uid);
1131 _E("remount failed");
1132 err_res = APP2EXT_ERROR_MOUNT_PATH;
1135 snprintf(app_mmc_path, sizeof(app_mmc_path),
1136 "%s/.mmc", application_path);
1137 snprintf(temp_app_mmc_path, sizeof(temp_app_mmc_path),
1138 "%s/.mmc", temp_application_path);
1140 ret = _app2sd_copy_ro_content(app_mmc_path,
1141 temp_app_mmc_path, dir_list);
1143 _E("copy ro content failed");
1147 ret = _app2sd_unmount_app_content(application_path);
1149 _E("unable to unmount the SD application");
1150 err_res = APP2EXT_ERROR_UNMOUNT;
1153 ret = _app2sd_unmount_app_content(temp_application_path);
1155 _E("unable to unmount the SD application");
1156 err_res = APP2EXT_ERROR_UNMOUNT;
1160 ret = _app2sd_dmcrypt_close_device(pkgid, uid);
1162 _E("close dmcrypt device error(%d)", ret);
1163 err_res = APP2EXT_ERROR_CLOSE_DMCRYPT_DEVICE;
1167 ret = _app2sd_dmcrypt_close_device(temp_pkgid, uid);
1169 _E("close dmcrypt device error(%d)", ret);
1170 err_res = APP2EXT_ERROR_CLOSE_DMCRYPT_DEVICE;
1174 ret = _app2sd_delete_directory(loopback_device);
1176 _E("unable to delete (%s)", loopback_device);
1177 err_res = APP2EXT_ERROR_DELETE_DIRECTORY;
1181 ret = _app2sd_rename_dir(temp_loopback_device, loopback_device);
1183 _E("unable to rename (%s)", temp_loopback_device);
1184 err_res = APP2EXT_ERROR_MOVE;
1188 ret = _app2sd_delete_directory(temp_application_path);
1190 _E("unable to delete (%s)", temp_application_path);
1191 err_res = APP2EXT_ERROR_DELETE_DIRECTORY;
1195 return APP2EXT_SUCCESS;
1198 if (old_device_node)
1199 free(old_device_node);
1201 ret = _app2sd_dmcrypt_close_device(pkgid, uid);
1203 _E("close dmcrypt device error(%d)", ret);
1205 ret = _app2sd_dmcrypt_close_device(temp_pkgid, uid);
1207 _E("close dmcrypt device error(%d)", ret);
1209 _app2sd_delete_loopback_device(temp_loopback_device);
1211 ret = _app2sd_delete_directory(temp_application_path);
1213 _E("unable to delete (%s)", temp_application_path);
1218 int _app2sd_force_clean(const char *pkgid, const char *application_path,
1219 const char *loopback_device, uid_t uid)
1223 /* unmount the loopback encrypted pseudo device from
1224 * the application installation path
1226 ret = _app2sd_unmount_app_content(application_path);
1228 _W("unable to unmount the app content (%d)", ret);
1230 /* detach the loopback encryption setup for the application */
1231 ret = _app2sd_dmcrypt_close_device(pkgid, uid);
1233 _W("close dmcrypt device error (%d)", ret);
1235 /* delete the loopback device from the SD card */
1236 ret = _app2sd_delete_loopback_device(loopback_device);
1238 _W("unable to detach the loopback encryption setup for "
1241 /* delete symlink */
1242 _app2sd_delete_symlink(application_path);
1244 /* remove passwrd from DB */
1245 ret = _app2sd_initialize_db();
1247 _W("app2sd db initialize failed");
1249 ret = _app2sd_remove_info_from_db(pkgid, uid);
1251 _W("cannot remove info from db");