1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "installd"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#include <ctype.h>
#include <fcntl.h>
#include <errno.h>
#include <utime.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <string>
#include <vector>
#include <cutils/fs.h>
#include <cutils/sockets.h>
#include <cutils/log.h>
#include <cutils/properties.h>
#include <cutils/multiuser.h>
#include <private/android_filesystem_config.h>
#if defined(__APPLE__)
#include <sys/mount.h>
#else
#include <sys/statfs.h>
#endif
#define SOCKET_PATH "installd"
/* elements combined with a valid package name to form paths */
#define PRIMARY_USER_PREFIX "data/"
#define SECONDARY_USER_PREFIX "user/"
#define PKG_DIR_POSTFIX ""
#define PKG_LIB_POSTFIX "/lib"
#define CACHE_DIR_POSTFIX "/cache"
#define CODE_CACHE_DIR_POSTFIX "/code_cache"
#define APP_SUBDIR "app/" // sub-directory under ANDROID_DATA
#define PRIV_APP_SUBDIR "priv-app/" // sub-directory under ANDROID_DATA
#define APP_LIB_SUBDIR "app-lib/" // sub-directory under ANDROID_DATA
#define MEDIA_SUBDIR "media/" // sub-directory under ANDROID_DATA
/* other handy constants */
#define PRIVATE_APP_SUBDIR "app-private/" // sub-directory under ANDROID_DATA
#define DALVIK_CACHE_PREFIX "/data/dalvik-cache/"
#define DALVIK_CACHE_POSTFIX "/classes.dex"
#define UPDATE_COMMANDS_DIR_PREFIX "/system/etc/updatecmds/"
#define IDMAP_PREFIX "/data/resource-cache/"
#define IDMAP_SUFFIX "@idmap"
#define PKG_NAME_MAX 128 /* largest allowed package name */
#define PKG_PATH_MAX 256 /* max size of any path we use */
/* dexopt needed flags matching those in dalvik.system.DexFile */
#define DEXOPT_DEX2OAT_NEEDED 1
#define DEXOPT_PATCHOAT_NEEDED 2
#define DEXOPT_SELF_PATCHOAT_NEEDED 3
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
/* data structures */
typedef struct {
char* path;
size_t len;
} dir_rec_t;
typedef struct {
size_t count;
dir_rec_t* dirs;
} dir_rec_array_t;
extern dir_rec_t android_app_dir;
extern dir_rec_t android_app_private_dir;
extern dir_rec_t android_app_lib_dir;
extern dir_rec_t android_data_dir;
extern dir_rec_t android_asec_dir;
extern dir_rec_t android_media_dir;
extern dir_rec_t android_mnt_expand_dir;
extern dir_rec_array_t android_system_dirs;
typedef struct cache_dir_struct {
struct cache_dir_struct* parent;
int32_t childCount;
int32_t hiddenCount;
int32_t deleted;
char name[];
} cache_dir_t;
typedef struct {
cache_dir_t* dir;
time_t modTime;
char name[];
} cache_file_t;
typedef struct {
size_t numDirs;
size_t availDirs;
cache_dir_t** dirs;
size_t numFiles;
size_t availFiles;
cache_file_t** files;
size_t numCollected;
void* memBlocks;
int8_t* curMemBlockAvail;
int8_t* curMemBlockEnd;
} cache_t;
/* util.c */
int create_pkg_path(char path[PKG_PATH_MAX],
const char *pkgname,
const char *postfix,
userid_t userid);
std::string create_data_path(const char* volume_uuid);
std::string create_data_app_path(const char* volume_uuid);
std::string create_data_app_package_path(const char* volume_uuid, const char* package_name);
std::string create_data_user_path(const char* volume_uuid, userid_t userid);
std::string create_data_user_package_path(const char* volume_uuid,
userid_t user, const char* package_name);
std::string create_data_media_path(const char* volume_uuid, userid_t userid);
std::vector<userid_t> get_known_users(const char* volume_uuid);
int create_user_config_path(char path[PKG_PATH_MAX], userid_t userid);
int create_move_path(char path[PKG_PATH_MAX],
const char* pkgname,
const char* leaf,
userid_t userid);
int is_valid_package_name(const char* pkgname);
int create_cache_path(char path[PKG_PATH_MAX], const char *src,
const char *instruction_set);
int delete_dir_contents(const char *pathname,
int also_delete_dir,
int (*exclusion_predicate)(const char *name, const int is_dir));
int delete_dir_contents_fd(int dfd, const char *name);
int copy_dir_files(const char *srcname, const char *dstname, uid_t owner, gid_t group);
int lookup_media_dir(char basepath[PATH_MAX], const char *dir);
int64_t data_disk_free(const std::string& data_path);
cache_t* start_cache_collection();
void add_cache_files(cache_t* cache, const char *basepath, const char *cachedir);
void clear_cache_files(const std::string& data_path, cache_t* cache, int64_t free_size);
void finish_cache_collection(cache_t* cache);
int validate_system_app_path(const char* path);
int get_path_from_env(dir_rec_t* rec, const char* var);
int get_path_from_string(dir_rec_t* rec, const char* path);
int copy_and_append(dir_rec_t* dst, const dir_rec_t* src, const char* suffix);
int validate_apk_path(const char *path);
int validate_apk_path_subdirs(const char *path);
int append_and_increment(char** dst, const char* src, size_t* dst_size);
char *build_string2(const char *s1, const char *s2);
char *build_string3(const char *s1, const char *s2, const char *s3);
int ensure_dir(const char* path, mode_t mode, uid_t uid, gid_t gid);
int ensure_media_user_dirs(const char* uuid, userid_t userid);
int ensure_config_user_dirs(userid_t userid);
int create_profile_file(const char *pkgname, gid_t gid);
void remove_profile_file(const char *pkgname);
/* commands.c */
int install(const char *uuid, const char *pkgname, uid_t uid, gid_t gid, const char *seinfo);
int uninstall(const char *uuid, const char *pkgname, userid_t userid);
int renamepkg(const char *oldpkgname, const char *newpkgname);
int fix_uid(const char *uuid, const char *pkgname, uid_t uid, gid_t gid);
int delete_user_data(const char *uuid, const char *pkgname, userid_t userid);
int make_user_data(const char *uuid, const char *pkgname, uid_t uid,
userid_t userid, const char* seinfo);
int copy_complete_app(const char* from_uuid, const char *to_uuid,
const char *package_name, const char *data_app_name, appid_t appid,
const char* seinfo);
int make_user_config(userid_t userid);
int delete_user(const char *uuid, userid_t userid);
int delete_cache(const char *uuid, const char *pkgname, userid_t userid);
int delete_code_cache(const char *uuid, const char *pkgname, userid_t userid);
int move_dex(const char *src, const char *dst, const char *instruction_set);
int rm_dex(const char *path, const char *instruction_set);
int protect(char *pkgname, gid_t gid);
int get_size(const char *uuid, const char *pkgname, int userid,
const char *apkpath, const char *libdirpath,
const char *fwdlock_apkpath, const char *asecpath,
const char *instruction_set, int64_t *codesize, int64_t *datasize,
int64_t *cachesize, int64_t *asecsize);
int free_cache(const char *uuid, int64_t free_size);
int dexopt(const char *apk_path, uid_t uid, bool is_public, const char *pkgName,
const char *instruction_set, int dexopt_needed, bool vm_safe_mode,
bool debuggable, const char* oat_dir);
int mark_boot_complete(const char *instruction_set);
int movefiles();
int linklib(const char* uuid, const char* pkgname, const char* asecLibDir, int userId);
int idmap(const char *target_path, const char *overlay_path, uid_t uid);
int restorecon_data(const char *uuid, const char* pkgName, const char* seinfo, uid_t uid);
int create_oat_dir(const char* oat_dir, const char *instruction_set);
int rm_package_dir(const char* apk_path);
int calculate_oat_file_path(char path[PKG_PATH_MAX], const char *oat_dir, const char *apk_path,
const char *instruction_set);
int move_package_dir(char path[PKG_PATH_MAX], const char *oat_dir, const char *apk_path,
const char *instruction_set);
int link_file(const char *relative_path, const char *from_base, const char *to_base);
|
