The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright 2008, The Android Open Source Project |
| 3 | ** |
| 4 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | ** you may not use this file except in compliance with the License. |
| 6 | ** You may obtain a copy of the License at |
| 7 | ** |
| 8 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | ** |
| 10 | ** Unless required by applicable law or agreed to in writing, software |
| 11 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | ** See the License for the specific language governing permissions and |
| 14 | ** limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "installd.h" |
Kenny Root | 33b2264 | 2010-11-30 13:49:32 -0800 | [diff] [blame] | 18 | #include <diskusage/dirsize.h> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 19 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 20 | int install(const char *pkgname, uid_t uid, gid_t gid) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 21 | { |
| 22 | char pkgdir[PKG_PATH_MAX]; |
| 23 | char libdir[PKG_PATH_MAX]; |
| 24 | |
| 25 | if ((uid < AID_SYSTEM) || (gid < AID_SYSTEM)) { |
| 26 | LOGE("invalid uid/gid: %d %d\n", uid, gid); |
| 27 | return -1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 28 | } |
Oscar Montemayor | a8529f6 | 2009-11-18 10:14:20 -0800 | [diff] [blame] | 29 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 30 | if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) |
| 31 | return -1; |
| 32 | if (create_pkg_path(libdir, PKG_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX)) |
| 33 | return -1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 34 | |
David 'Digit' Turner | 0dd50e6 | 2010-02-09 19:02:38 -0800 | [diff] [blame] | 35 | if (mkdir(pkgdir, 0751) < 0) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 36 | LOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno)); |
| 37 | return -errno; |
| 38 | } |
| 39 | if (chown(pkgdir, uid, gid) < 0) { |
| 40 | LOGE("cannot chown dir '%s': %s\n", pkgdir, strerror(errno)); |
| 41 | unlink(pkgdir); |
| 42 | return -errno; |
| 43 | } |
| 44 | if (mkdir(libdir, 0755) < 0) { |
| 45 | LOGE("cannot create dir '%s': %s\n", libdir, strerror(errno)); |
| 46 | unlink(pkgdir); |
| 47 | return -errno; |
| 48 | } |
| 49 | if (chown(libdir, AID_SYSTEM, AID_SYSTEM) < 0) { |
| 50 | LOGE("cannot chown dir '%s': %s\n", libdir, strerror(errno)); |
| 51 | unlink(libdir); |
| 52 | unlink(pkgdir); |
| 53 | return -errno; |
| 54 | } |
| 55 | return 0; |
| 56 | } |
| 57 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 58 | int uninstall(const char *pkgname) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 59 | { |
| 60 | char pkgdir[PKG_PATH_MAX]; |
| 61 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 62 | if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) |
| 63 | return -1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 64 | |
| 65 | /* delete contents AND directory, no exceptions */ |
| 66 | return delete_dir_contents(pkgdir, 1, 0); |
| 67 | } |
| 68 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 69 | int renamepkg(const char *oldpkgname, const char *newpkgname) |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 70 | { |
| 71 | char oldpkgdir[PKG_PATH_MAX]; |
| 72 | char newpkgdir[PKG_PATH_MAX]; |
| 73 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 74 | if (create_pkg_path(oldpkgdir, PKG_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX)) |
| 75 | return -1; |
| 76 | if (create_pkg_path(newpkgdir, PKG_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX)) |
| 77 | return -1; |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 78 | |
| 79 | if (rename(oldpkgdir, newpkgdir) < 0) { |
| 80 | LOGE("cannot rename dir '%s' to '%s': %s\n", oldpkgdir, newpkgdir, strerror(errno)); |
| 81 | return -errno; |
| 82 | } |
| 83 | return 0; |
| 84 | } |
| 85 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 86 | int delete_user_data(const char *pkgname) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 87 | { |
| 88 | char pkgdir[PKG_PATH_MAX]; |
| 89 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 90 | if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) |
| 91 | return -1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 92 | |
| 93 | /* delete contents, excluding "lib", but not the directory itself */ |
| 94 | return delete_dir_contents(pkgdir, 0, "lib"); |
| 95 | } |
| 96 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 97 | int delete_cache(const char *pkgname) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 98 | { |
| 99 | char cachedir[PKG_PATH_MAX]; |
| 100 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 101 | if (create_pkg_path(cachedir, CACHE_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX)) |
| 102 | return -1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 103 | |
| 104 | /* delete contents, not the directory, no exceptions */ |
| 105 | return delete_dir_contents(cachedir, 0, 0); |
| 106 | } |
| 107 | |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 108 | static int64_t disk_free() |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 109 | { |
| 110 | struct statfs sfs; |
| 111 | if (statfs(PKG_DIR_PREFIX, &sfs) == 0) { |
| 112 | return sfs.f_bavail * sfs.f_bsize; |
| 113 | } else { |
Kenny Root | 5087152 | 2010-08-04 09:14:01 -0700 | [diff] [blame] | 114 | LOGE("Couldn't statfs " PKG_DIR_PREFIX ": %s\n", strerror(errno)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 115 | return -1; |
| 116 | } |
| 117 | } |
| 118 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 119 | /* Try to ensure free_size bytes of storage are available. |
| 120 | * Returns 0 on success. |
| 121 | * This is rather simple-minded because doing a full LRU would |
| 122 | * be potentially memory-intensive, and without atime it would |
| 123 | * also require that apps constantly modify file metadata even |
| 124 | * when just reading from the cache, which is pretty awful. |
| 125 | */ |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 126 | int free_cache(int64_t free_size) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 127 | { |
| 128 | const char *name; |
| 129 | int dfd, subfd; |
| 130 | DIR *d; |
| 131 | struct dirent *de; |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 132 | int64_t avail; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 133 | |
| 134 | avail = disk_free(); |
| 135 | if (avail < 0) return -1; |
| 136 | |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 137 | LOGI("free_cache(%" PRId64 ") avail %" PRId64 "\n", free_size, avail); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 138 | if (avail >= free_size) return 0; |
| 139 | |
| 140 | d = opendir(PKG_DIR_PREFIX); |
| 141 | if (d == NULL) { |
Kenny Root | 5087152 | 2010-08-04 09:14:01 -0700 | [diff] [blame] | 142 | LOGE("cannot open %s: %s\n", PKG_DIR_PREFIX, strerror(errno)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 143 | return -1; |
| 144 | } |
| 145 | dfd = dirfd(d); |
| 146 | |
| 147 | while ((de = readdir(d))) { |
| 148 | if (de->d_type != DT_DIR) continue; |
| 149 | name = de->d_name; |
| 150 | |
Oscar Montemayor | a8529f6 | 2009-11-18 10:14:20 -0800 | [diff] [blame] | 151 | /* always skip "." and ".." */ |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 152 | if (name[0] == '.') { |
| 153 | if (name[1] == 0) continue; |
| 154 | if ((name[1] == '.') && (name[2] == 0)) continue; |
| 155 | } |
| 156 | |
| 157 | subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY); |
| 158 | if (subfd < 0) continue; |
| 159 | |
| 160 | delete_dir_contents_fd(subfd, "cache"); |
| 161 | close(subfd); |
| 162 | |
| 163 | avail = disk_free(); |
| 164 | if (avail >= free_size) { |
| 165 | closedir(d); |
| 166 | return 0; |
| 167 | } |
| 168 | } |
| 169 | closedir(d); |
Oscar Montemayor | a8529f6 | 2009-11-18 10:14:20 -0800 | [diff] [blame] | 170 | |
| 171 | /* Fail case - not possible to free space */ |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 172 | return -1; |
| 173 | } |
| 174 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 175 | /* used by move_dex, rm_dex, etc to ensure that the provided paths |
| 176 | * don't point anywhere other than at the APK_DIR_PREFIX |
| 177 | */ |
| 178 | static int is_valid_apk_path(const char *path) |
| 179 | { |
| 180 | int len = strlen(APK_DIR_PREFIX); |
Suchi Amalapurapu | af8e9f4 | 2010-01-12 10:17:28 -0800 | [diff] [blame] | 181 | int nosubdircheck = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 182 | if (strncmp(path, APK_DIR_PREFIX, len)) { |
| 183 | len = strlen(PROTECTED_DIR_PREFIX); |
| 184 | if (strncmp(path, PROTECTED_DIR_PREFIX, len)) { |
Suchi Amalapurapu | af8e9f4 | 2010-01-12 10:17:28 -0800 | [diff] [blame] | 185 | len = strlen(SDCARD_DIR_PREFIX); |
| 186 | if (strncmp(path, SDCARD_DIR_PREFIX, len)) { |
| 187 | LOGE("invalid apk path '%s' (bad prefix)\n", path); |
| 188 | return 0; |
| 189 | } else { |
| 190 | nosubdircheck = 1; |
| 191 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 192 | } |
| 193 | } |
Suchi Amalapurapu | af8e9f4 | 2010-01-12 10:17:28 -0800 | [diff] [blame] | 194 | if ((nosubdircheck != 1) && strchr(path + len, '/')) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 195 | LOGE("invalid apk path '%s' (subdir?)\n", path); |
| 196 | return 0; |
| 197 | } |
| 198 | if (path[len] == '.') { |
| 199 | LOGE("invalid apk path '%s' (trickery)\n", path); |
| 200 | return 0; |
| 201 | } |
| 202 | return 1; |
| 203 | } |
| 204 | |
| 205 | int move_dex(const char *src, const char *dst) |
| 206 | { |
| 207 | char src_dex[PKG_PATH_MAX]; |
| 208 | char dst_dex[PKG_PATH_MAX]; |
| 209 | |
| 210 | if (!is_valid_apk_path(src)) return -1; |
| 211 | if (!is_valid_apk_path(dst)) return -1; |
| 212 | |
| 213 | if (create_cache_path(src_dex, src)) return -1; |
| 214 | if (create_cache_path(dst_dex, dst)) return -1; |
| 215 | |
| 216 | LOGI("move %s -> %s\n", src_dex, dst_dex); |
| 217 | if (rename(src_dex, dst_dex) < 0) { |
Kenny Root | 5087152 | 2010-08-04 09:14:01 -0700 | [diff] [blame] | 218 | LOGE("Couldn't move %s: %s\n", src_dex, strerror(errno)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 219 | return -1; |
| 220 | } else { |
| 221 | return 0; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | int rm_dex(const char *path) |
| 226 | { |
| 227 | char dex_path[PKG_PATH_MAX]; |
| 228 | |
| 229 | if (!is_valid_apk_path(path)) return -1; |
| 230 | if (create_cache_path(dex_path, path)) return -1; |
| 231 | |
| 232 | LOGI("unlink %s\n", dex_path); |
| 233 | if (unlink(dex_path) < 0) { |
Kenny Root | 5087152 | 2010-08-04 09:14:01 -0700 | [diff] [blame] | 234 | LOGE("Couldn't unlink %s: %s\n", dex_path, strerror(errno)); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 235 | return -1; |
| 236 | } else { |
| 237 | return 0; |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | int protect(char *pkgname, gid_t gid) |
| 242 | { |
| 243 | struct stat s; |
| 244 | char pkgpath[PKG_PATH_MAX]; |
| 245 | |
| 246 | if (gid < AID_SYSTEM) return -1; |
| 247 | |
| 248 | if (create_pkg_path(pkgpath, PROTECTED_DIR_PREFIX, pkgname, ".apk")) |
| 249 | return -1; |
| 250 | |
| 251 | if (stat(pkgpath, &s) < 0) return -1; |
| 252 | |
| 253 | if (chown(pkgpath, s.st_uid, gid) < 0) { |
| 254 | LOGE("failed to chgrp '%s': %s\n", pkgpath, strerror(errno)); |
| 255 | return -1; |
| 256 | } |
| 257 | |
| 258 | if (chmod(pkgpath, S_IRUSR|S_IWUSR|S_IRGRP) < 0) { |
| 259 | LOGE("failed to chmod '%s': %s\n", pkgpath, strerror(errno)); |
| 260 | return -1; |
| 261 | } |
| 262 | |
| 263 | return 0; |
| 264 | } |
| 265 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 266 | int get_size(const char *pkgname, const char *apkpath, |
| 267 | const char *fwdlock_apkpath, |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 268 | int64_t *_codesize, int64_t *_datasize, int64_t *_cachesize) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 269 | { |
| 270 | DIR *d; |
| 271 | int dfd; |
| 272 | struct dirent *de; |
| 273 | struct stat s; |
| 274 | char path[PKG_PATH_MAX]; |
| 275 | |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 276 | int64_t codesize = 0; |
| 277 | int64_t datasize = 0; |
| 278 | int64_t cachesize = 0; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 279 | |
| 280 | /* count the source apk as code -- but only if it's not |
Suchi Amalapurapu | 8a9ab24 | 2010-03-11 16:49:16 -0800 | [diff] [blame] | 281 | * on the /system partition and its not on the sdcard. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 282 | */ |
Suchi Amalapurapu | 8a9ab24 | 2010-03-11 16:49:16 -0800 | [diff] [blame] | 283 | if (strncmp(apkpath, "/system", 7) != 0 && |
| 284 | strncmp(apkpath, SDCARD_DIR_PREFIX, 7) != 0) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 285 | if (stat(apkpath, &s) == 0) { |
| 286 | codesize += stat_size(&s); |
| 287 | } |
| 288 | } |
| 289 | /* count the forward locked apk as code if it is given |
| 290 | */ |
| 291 | if (fwdlock_apkpath != NULL && fwdlock_apkpath[0] != '!') { |
| 292 | if (stat(fwdlock_apkpath, &s) == 0) { |
| 293 | codesize += stat_size(&s); |
| 294 | } |
| 295 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 296 | /* count the cached dexfile as code */ |
| 297 | if (!create_cache_path(path, apkpath)) { |
| 298 | if (stat(path, &s) == 0) { |
| 299 | codesize += stat_size(&s); |
| 300 | } |
| 301 | } |
| 302 | |
Kenny Root | 35ab3ad | 2011-02-02 16:42:14 -0800 | [diff] [blame] | 303 | if (create_pkg_path(path, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) { |
| 304 | goto done; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | d = opendir(path); |
| 308 | if (d == NULL) { |
| 309 | goto done; |
| 310 | } |
| 311 | dfd = dirfd(d); |
| 312 | |
| 313 | /* most stuff in the pkgdir is data, except for the "cache" |
| 314 | * directory and below, which is cache, and the "lib" directory |
| 315 | * and below, which is code... |
| 316 | */ |
| 317 | while ((de = readdir(d))) { |
| 318 | const char *name = de->d_name; |
| 319 | |
| 320 | if (de->d_type == DT_DIR) { |
| 321 | int subfd; |
| 322 | /* always skip "." and ".." */ |
| 323 | if (name[0] == '.') { |
| 324 | if (name[1] == 0) continue; |
| 325 | if ((name[1] == '.') && (name[2] == 0)) continue; |
| 326 | } |
| 327 | subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY); |
| 328 | if (subfd >= 0) { |
Kenny Root | 3e319a9 | 2010-09-07 13:58:28 -0700 | [diff] [blame] | 329 | int64_t size = calculate_dir_size(subfd); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 330 | if (!strcmp(name,"lib")) { |
| 331 | codesize += size; |
| 332 | } else if(!strcmp(name,"cache")) { |
| 333 | cachesize += size; |
| 334 | } else { |
| 335 | datasize += size; |
| 336 | } |
| 337 | } |
| 338 | } else { |
| 339 | if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) { |
| 340 | datasize += stat_size(&s); |
| 341 | } |
| 342 | } |
| 343 | } |
| 344 | closedir(d); |
| 345 | done: |
| 346 | *_codesize = codesize; |
| 347 | *_datasize = datasize; |
| 348 | *_cachesize = cachesize; |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | |
| 353 | /* a simpler version of dexOptGenerateCacheFileName() */ |
| 354 | int create_cache_path(char path[PKG_PATH_MAX], const char *src) |
| 355 | { |
| 356 | char *tmp; |
| 357 | int srclen; |
| 358 | int dstlen; |
| 359 | |
| 360 | srclen = strlen(src); |
| 361 | |
| 362 | /* demand that we are an absolute path */ |
| 363 | if ((src == 0) || (src[0] != '/') || strstr(src,"..")) { |
| 364 | return -1; |
| 365 | } |
| 366 | |
| 367 | if (srclen > PKG_PATH_MAX) { // XXX: PKG_NAME_MAX? |
| 368 | return -1; |
| 369 | } |
| 370 | |
| 371 | dstlen = srclen + strlen(DALVIK_CACHE_PREFIX) + |
| 372 | strlen(DALVIK_CACHE_POSTFIX) + 1; |
| 373 | |
| 374 | if (dstlen > PKG_PATH_MAX) { |
| 375 | return -1; |
| 376 | } |
| 377 | |
| 378 | sprintf(path,"%s%s%s", |
| 379 | DALVIK_CACHE_PREFIX, |
| 380 | src + 1, /* skip the leading / */ |
| 381 | DALVIK_CACHE_POSTFIX); |
| 382 | |
| 383 | for(tmp = path + strlen(DALVIK_CACHE_PREFIX); *tmp; tmp++) { |
| 384 | if (*tmp == '/') { |
| 385 | *tmp = '@'; |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | static void run_dexopt(int zip_fd, int odex_fd, const char* input_file_name, |
| 393 | const char* dexopt_flags) |
| 394 | { |
| 395 | static const char* DEX_OPT_BIN = "/system/bin/dexopt"; |
| 396 | static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig |
| 397 | char zip_num[MAX_INT_LEN]; |
| 398 | char odex_num[MAX_INT_LEN]; |
| 399 | |
| 400 | sprintf(zip_num, "%d", zip_fd); |
| 401 | sprintf(odex_num, "%d", odex_fd); |
| 402 | |
| 403 | execl(DEX_OPT_BIN, DEX_OPT_BIN, "--zip", zip_num, odex_num, input_file_name, |
| 404 | dexopt_flags, (char*) NULL); |
| 405 | LOGE("execl(%s) failed: %s\n", DEX_OPT_BIN, strerror(errno)); |
| 406 | } |
| 407 | |
| 408 | static int wait_dexopt(pid_t pid, const char* apk_path) |
| 409 | { |
| 410 | int status; |
| 411 | pid_t got_pid; |
| 412 | |
| 413 | /* |
| 414 | * Wait for the optimization process to finish. |
| 415 | */ |
| 416 | while (1) { |
| 417 | got_pid = waitpid(pid, &status, 0); |
| 418 | if (got_pid == -1 && errno == EINTR) { |
| 419 | printf("waitpid interrupted, retrying\n"); |
| 420 | } else { |
| 421 | break; |
| 422 | } |
| 423 | } |
| 424 | if (got_pid != pid) { |
| 425 | LOGW("waitpid failed: wanted %d, got %d: %s\n", |
| 426 | (int) pid, (int) got_pid, strerror(errno)); |
| 427 | return 1; |
| 428 | } |
| 429 | |
| 430 | if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { |
| 431 | LOGD("DexInv: --- END '%s' (success) ---\n", apk_path); |
| 432 | return 0; |
| 433 | } else { |
| 434 | LOGW("DexInv: --- END '%s' --- status=0x%04x, process failed\n", |
| 435 | apk_path, status); |
| 436 | return status; /* always nonzero */ |
| 437 | } |
| 438 | } |
| 439 | |
| 440 | int dexopt(const char *apk_path, uid_t uid, int is_public) |
| 441 | { |
| 442 | struct utimbuf ut; |
| 443 | struct stat apk_stat, dex_stat; |
| 444 | char dex_path[PKG_PATH_MAX]; |
| 445 | char dexopt_flags[PROPERTY_VALUE_MAX]; |
| 446 | char *end; |
| 447 | int res, zip_fd=-1, odex_fd=-1; |
| 448 | |
| 449 | /* Before anything else: is there a .odex file? If so, we have |
| 450 | * pre-optimized the apk and there is nothing to do here. |
| 451 | */ |
| 452 | if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) { |
| 453 | return -1; |
| 454 | } |
| 455 | |
| 456 | /* platform-specific flags affecting optimization and verification */ |
| 457 | property_get("dalvik.vm.dexopt-flags", dexopt_flags, ""); |
| 458 | |
| 459 | strcpy(dex_path, apk_path); |
| 460 | end = strrchr(dex_path, '.'); |
| 461 | if (end != NULL) { |
| 462 | strcpy(end, ".odex"); |
| 463 | if (stat(dex_path, &dex_stat) == 0) { |
| 464 | return 0; |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | if (create_cache_path(dex_path, apk_path)) { |
| 469 | return -1; |
| 470 | } |
| 471 | |
| 472 | memset(&apk_stat, 0, sizeof(apk_stat)); |
| 473 | stat(apk_path, &apk_stat); |
| 474 | |
| 475 | zip_fd = open(apk_path, O_RDONLY, 0); |
| 476 | if (zip_fd < 0) { |
| 477 | LOGE("dexopt cannot open '%s' for input\n", apk_path); |
| 478 | return -1; |
| 479 | } |
| 480 | |
| 481 | unlink(dex_path); |
| 482 | odex_fd = open(dex_path, O_RDWR | O_CREAT | O_EXCL, 0644); |
| 483 | if (odex_fd < 0) { |
| 484 | LOGE("dexopt cannot open '%s' for output\n", dex_path); |
| 485 | goto fail; |
| 486 | } |
| 487 | if (fchown(odex_fd, AID_SYSTEM, uid) < 0) { |
| 488 | LOGE("dexopt cannot chown '%s'\n", dex_path); |
| 489 | goto fail; |
| 490 | } |
| 491 | if (fchmod(odex_fd, |
| 492 | S_IRUSR|S_IWUSR|S_IRGRP | |
| 493 | (is_public ? S_IROTH : 0)) < 0) { |
| 494 | LOGE("dexopt cannot chmod '%s'\n", dex_path); |
| 495 | goto fail; |
| 496 | } |
| 497 | |
| 498 | LOGD("DexInv: --- BEGIN '%s' ---\n", apk_path); |
| 499 | |
| 500 | pid_t pid; |
| 501 | pid = fork(); |
| 502 | if (pid == 0) { |
| 503 | /* child -- drop privileges before continuing */ |
| 504 | if (setgid(uid) != 0) { |
| 505 | LOGE("setgid(%d) failed during dexopt\n", uid); |
| 506 | exit(64); |
| 507 | } |
| 508 | if (setuid(uid) != 0) { |
| 509 | LOGE("setuid(%d) during dexopt\n", uid); |
| 510 | exit(65); |
| 511 | } |
| 512 | if (flock(odex_fd, LOCK_EX | LOCK_NB) != 0) { |
| 513 | LOGE("flock(%s) failed: %s\n", dex_path, strerror(errno)); |
| 514 | exit(66); |
| 515 | } |
| 516 | |
| 517 | run_dexopt(zip_fd, odex_fd, apk_path, dexopt_flags); |
| 518 | exit(67); /* only get here on exec failure */ |
| 519 | } else { |
| 520 | res = wait_dexopt(pid, apk_path); |
| 521 | if (res != 0) { |
| 522 | LOGE("dexopt failed on '%s' res = %d\n", dex_path, res); |
| 523 | goto fail; |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | ut.actime = apk_stat.st_atime; |
| 528 | ut.modtime = apk_stat.st_mtime; |
| 529 | utime(dex_path, &ut); |
| 530 | |
| 531 | close(odex_fd); |
| 532 | close(zip_fd); |
| 533 | return 0; |
| 534 | |
| 535 | fail: |
| 536 | if (odex_fd >= 0) { |
| 537 | close(odex_fd); |
| 538 | unlink(dex_path); |
| 539 | } |
| 540 | if (zip_fd >= 0) { |
| 541 | close(zip_fd); |
| 542 | } |
| 543 | return -1; |
| 544 | } |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 545 | |
| 546 | int create_move_path(char path[PKG_PATH_MAX], |
| 547 | const char* prefix, |
| 548 | const char* pkgname, |
| 549 | const char* leaf) |
| 550 | { |
| 551 | if ((strlen(prefix) + strlen(pkgname) + strlen(leaf) + 1) >= PKG_PATH_MAX) { |
| 552 | return -1; |
| 553 | } |
| 554 | |
| 555 | sprintf(path, "%s%s/%s", prefix, pkgname, leaf); |
| 556 | return 0; |
| 557 | } |
| 558 | |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 559 | void mkinnerdirs(char* path, int basepos, mode_t mode, int uid, int gid, |
| 560 | struct stat* statbuf) |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 561 | { |
| 562 | while (path[basepos] != 0) { |
| 563 | if (path[basepos] == '/') { |
| 564 | path[basepos] = 0; |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 565 | if (lstat(path, statbuf) < 0) { |
| 566 | LOGI("Making directory: %s\n", path); |
| 567 | if (mkdir(path, mode) == 0) { |
| 568 | chown(path, uid, gid); |
| 569 | } else { |
| 570 | LOGW("Unable to make directory %s: %s\n", path, strerror(errno)); |
| 571 | } |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 572 | } |
| 573 | path[basepos] = '/'; |
| 574 | basepos++; |
| 575 | } |
| 576 | basepos++; |
| 577 | } |
| 578 | } |
| 579 | |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 580 | int movefileordir(char* srcpath, char* dstpath, int dstbasepos, |
| 581 | int dstuid, int dstgid, struct stat* statbuf) |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 582 | { |
| 583 | DIR *d; |
| 584 | struct dirent *de; |
| 585 | int res; |
| 586 | |
| 587 | int srcend = strlen(srcpath); |
| 588 | int dstend = strlen(dstpath); |
| 589 | |
| 590 | if (lstat(srcpath, statbuf) < 0) { |
| 591 | LOGW("Unable to stat %s: %s\n", srcpath, strerror(errno)); |
| 592 | return 1; |
| 593 | } |
| 594 | |
| 595 | if ((statbuf->st_mode&S_IFDIR) == 0) { |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 596 | mkinnerdirs(dstpath, dstbasepos, S_IRWXU|S_IRWXG|S_IXOTH, |
| 597 | dstuid, dstgid, statbuf); |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 598 | LOGI("Renaming %s to %s (uid %d)\n", srcpath, dstpath, dstuid); |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 599 | if (rename(srcpath, dstpath) >= 0) { |
| 600 | if (chown(dstpath, dstuid, dstgid) < 0) { |
| 601 | LOGE("cannot chown %s: %s\n", dstpath, strerror(errno)); |
| 602 | unlink(dstpath); |
| 603 | return 1; |
| 604 | } |
| 605 | } else { |
| 606 | LOGW("Unable to rename %s to %s: %s\n", |
| 607 | srcpath, dstpath, strerror(errno)); |
| 608 | return 1; |
| 609 | } |
| 610 | return 0; |
| 611 | } |
| 612 | |
| 613 | d = opendir(srcpath); |
| 614 | if (d == NULL) { |
| 615 | LOGW("Unable to opendir %s: %s\n", srcpath, strerror(errno)); |
| 616 | return 1; |
| 617 | } |
| 618 | |
| 619 | res = 0; |
| 620 | |
| 621 | while ((de = readdir(d))) { |
| 622 | const char *name = de->d_name; |
| 623 | /* always skip "." and ".." */ |
| 624 | if (name[0] == '.') { |
| 625 | if (name[1] == 0) continue; |
| 626 | if ((name[1] == '.') && (name[2] == 0)) continue; |
| 627 | } |
| 628 | |
| 629 | if ((srcend+strlen(name)) >= (PKG_PATH_MAX-2)) { |
| 630 | LOGW("Source path too long; skipping: %s/%s\n", srcpath, name); |
| 631 | continue; |
| 632 | } |
| 633 | |
| 634 | if ((dstend+strlen(name)) >= (PKG_PATH_MAX-2)) { |
| 635 | LOGW("Destination path too long; skipping: %s/%s\n", dstpath, name); |
| 636 | continue; |
| 637 | } |
| 638 | |
| 639 | srcpath[srcend] = dstpath[dstend] = '/'; |
| 640 | strcpy(srcpath+srcend+1, name); |
| 641 | strcpy(dstpath+dstend+1, name); |
| 642 | |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 643 | if (movefileordir(srcpath, dstpath, dstbasepos, dstuid, dstgid, statbuf) != 0) { |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 644 | res = 1; |
| 645 | } |
| 646 | |
| 647 | // Note: we will be leaving empty directories behind in srcpath, |
| 648 | // but that is okay, the package manager will be erasing all of the |
| 649 | // data associated with .apks that disappear. |
| 650 | |
| 651 | srcpath[srcend] = dstpath[dstend] = 0; |
| 652 | } |
| 653 | |
| 654 | closedir(d); |
| 655 | return res; |
| 656 | } |
| 657 | |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 658 | int movefiles() |
| 659 | { |
| 660 | DIR *d; |
| 661 | int dfd, subfd; |
| 662 | struct dirent *de; |
| 663 | struct stat s; |
| 664 | char buf[PKG_PATH_MAX+1]; |
| 665 | int bufp, bufe, bufi, readlen; |
| 666 | |
| 667 | char srcpkg[PKG_NAME_MAX]; |
| 668 | char dstpkg[PKG_NAME_MAX]; |
| 669 | char srcpath[PKG_PATH_MAX]; |
| 670 | char dstpath[PKG_PATH_MAX]; |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 671 | int dstuid=-1, dstgid=-1; |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 672 | int hasspace; |
| 673 | |
| 674 | d = opendir(UPDATE_COMMANDS_DIR_PREFIX); |
| 675 | if (d == NULL) { |
| 676 | goto done; |
| 677 | } |
| 678 | dfd = dirfd(d); |
| 679 | |
| 680 | /* Iterate through all files in the directory, executing the |
| 681 | * file movements requested there-in. |
| 682 | */ |
| 683 | while ((de = readdir(d))) { |
| 684 | const char *name = de->d_name; |
| 685 | |
| 686 | if (de->d_type == DT_DIR) { |
| 687 | continue; |
| 688 | } else { |
| 689 | subfd = openat(dfd, name, O_RDONLY); |
| 690 | if (subfd < 0) { |
| 691 | LOGW("Unable to open update commands at %s%s\n", |
| 692 | UPDATE_COMMANDS_DIR_PREFIX, name); |
| 693 | continue; |
| 694 | } |
| 695 | |
| 696 | bufp = 0; |
| 697 | bufe = 0; |
| 698 | buf[PKG_PATH_MAX] = 0; |
| 699 | srcpkg[0] = dstpkg[0] = 0; |
| 700 | while (1) { |
| 701 | bufi = bufp; |
| 702 | while (bufi < bufe && buf[bufi] != '\n') { |
| 703 | bufi++; |
| 704 | } |
| 705 | if (bufi < bufe) { |
| 706 | buf[bufi] = 0; |
| 707 | LOGV("Processing line: %s\n", buf+bufp); |
| 708 | hasspace = 0; |
| 709 | while (bufp < bufi && isspace(buf[bufp])) { |
| 710 | hasspace = 1; |
| 711 | bufp++; |
| 712 | } |
| 713 | if (buf[bufp] == '#' || bufp == bufi) { |
| 714 | // skip comments and empty lines. |
| 715 | } else if (hasspace) { |
| 716 | if (dstpkg[0] == 0) { |
| 717 | LOGW("Path before package line in %s%s: %s\n", |
| 718 | UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp); |
| 719 | } else if (srcpkg[0] == 0) { |
| 720 | // Skip -- source package no longer exists. |
| 721 | } else { |
| 722 | LOGV("Move file: %s (from %s to %s)\n", buf+bufp, srcpkg, dstpkg); |
| 723 | if (!create_move_path(srcpath, PKG_DIR_PREFIX, srcpkg, buf+bufp) && |
| 724 | !create_move_path(dstpath, PKG_DIR_PREFIX, dstpkg, buf+bufp)) { |
Dianne Hackborn | c155239 | 2010-03-03 16:19:01 -0800 | [diff] [blame] | 725 | movefileordir(srcpath, dstpath, |
| 726 | strlen(dstpath)-strlen(buf+bufp), |
| 727 | dstuid, dstgid, &s); |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 728 | } |
| 729 | } |
| 730 | } else { |
| 731 | char* div = strchr(buf+bufp, ':'); |
| 732 | if (div == NULL) { |
| 733 | LOGW("Bad package spec in %s%s; no ':' sep: %s\n", |
| 734 | UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp); |
| 735 | } else { |
| 736 | *div = 0; |
| 737 | div++; |
| 738 | if (strlen(buf+bufp) < PKG_NAME_MAX) { |
| 739 | strcpy(dstpkg, buf+bufp); |
| 740 | } else { |
| 741 | srcpkg[0] = dstpkg[0] = 0; |
| 742 | LOGW("Package name too long in %s%s: %s\n", |
| 743 | UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp); |
| 744 | } |
| 745 | if (strlen(div) < PKG_NAME_MAX) { |
| 746 | strcpy(srcpkg, div); |
| 747 | } else { |
| 748 | srcpkg[0] = dstpkg[0] = 0; |
| 749 | LOGW("Package name too long in %s%s: %s\n", |
| 750 | UPDATE_COMMANDS_DIR_PREFIX, name, div); |
| 751 | } |
| 752 | if (srcpkg[0] != 0) { |
| 753 | if (!create_pkg_path(srcpath, PKG_DIR_PREFIX, srcpkg, |
| 754 | PKG_DIR_POSTFIX)) { |
| 755 | if (lstat(srcpath, &s) < 0) { |
| 756 | // Package no longer exists -- skip. |
| 757 | srcpkg[0] = 0; |
| 758 | } |
| 759 | } else { |
| 760 | srcpkg[0] = 0; |
| 761 | LOGW("Can't create path %s in %s%s\n", |
| 762 | div, UPDATE_COMMANDS_DIR_PREFIX, name); |
| 763 | } |
| 764 | if (srcpkg[0] != 0) { |
| 765 | if (!create_pkg_path(dstpath, PKG_DIR_PREFIX, dstpkg, |
| 766 | PKG_DIR_POSTFIX)) { |
| 767 | if (lstat(dstpath, &s) == 0) { |
| 768 | dstuid = s.st_uid; |
| 769 | dstgid = s.st_gid; |
| 770 | } else { |
Dianne Hackborn | d705fd2 | 2010-02-12 14:58:04 -0800 | [diff] [blame] | 771 | // Destination package doesn't |
| 772 | // exist... due to original-package, |
| 773 | // this is normal, so don't be |
| 774 | // noisy about it. |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 775 | srcpkg[0] = 0; |
Dianne Hackborn | b858dfd | 2010-02-02 10:49:14 -0800 | [diff] [blame] | 776 | } |
| 777 | } else { |
| 778 | srcpkg[0] = 0; |
| 779 | LOGW("Can't create path %s in %s%s\n", |
| 780 | div, UPDATE_COMMANDS_DIR_PREFIX, name); |
| 781 | } |
| 782 | } |
| 783 | LOGV("Transfering from %s to %s: uid=%d\n", |
| 784 | srcpkg, dstpkg, dstuid); |
| 785 | } |
| 786 | } |
| 787 | } |
| 788 | bufp = bufi+1; |
| 789 | } else { |
| 790 | if (bufp == 0) { |
| 791 | if (bufp < bufe) { |
| 792 | LOGW("Line too long in %s%s, skipping: %s\n", |
| 793 | UPDATE_COMMANDS_DIR_PREFIX, name, buf); |
| 794 | } |
| 795 | } else if (bufp < bufe) { |
| 796 | memcpy(buf, buf+bufp, bufe-bufp); |
| 797 | bufe -= bufp; |
| 798 | bufp = 0; |
| 799 | } |
| 800 | readlen = read(subfd, buf+bufe, PKG_PATH_MAX-bufe); |
| 801 | if (readlen < 0) { |
| 802 | LOGW("Failure reading update commands in %s%s: %s\n", |
| 803 | UPDATE_COMMANDS_DIR_PREFIX, name, strerror(errno)); |
| 804 | break; |
| 805 | } else if (readlen == 0) { |
| 806 | break; |
| 807 | } |
| 808 | bufe += readlen; |
| 809 | buf[bufe] = 0; |
| 810 | LOGV("Read buf: %s\n", buf); |
| 811 | } |
| 812 | } |
| 813 | close(subfd); |
| 814 | } |
| 815 | } |
| 816 | closedir(d); |
| 817 | done: |
| 818 | return 0; |
| 819 | } |
Kenny Root | 6a6b007 | 2010-10-07 16:46:10 -0700 | [diff] [blame] | 820 | |
| 821 | int linklib(const char* dataDir, const char* asecLibDir) |
| 822 | { |
| 823 | char libdir[PKG_PATH_MAX]; |
| 824 | struct stat s, libStat; |
| 825 | int rc = 0; |
| 826 | |
| 827 | const size_t libdirLen = strlen(dataDir) + strlen(PKG_LIB_POSTFIX); |
| 828 | if (libdirLen >= PKG_PATH_MAX) { |
| 829 | LOGE("library dir len too large"); |
Kenny Root | 0332d1c | 2010-10-21 16:14:06 -0700 | [diff] [blame] | 830 | return -1; |
Kenny Root | 6a6b007 | 2010-10-07 16:46:10 -0700 | [diff] [blame] | 831 | } |
| 832 | |
| 833 | if (snprintf(libdir, sizeof(libdir), "%s%s", dataDir, PKG_LIB_POSTFIX) != (ssize_t)libdirLen) { |
| 834 | LOGE("library dir not written successfully: %s\n", strerror(errno)); |
Kenny Root | 0332d1c | 2010-10-21 16:14:06 -0700 | [diff] [blame] | 835 | return -1; |
Kenny Root | 6a6b007 | 2010-10-07 16:46:10 -0700 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | if (stat(dataDir, &s) < 0) return -1; |
| 839 | |
| 840 | if (chown(dataDir, 0, 0) < 0) { |
| 841 | LOGE("failed to chown '%s': %s\n", dataDir, strerror(errno)); |
| 842 | return -1; |
| 843 | } |
| 844 | |
| 845 | if (chmod(dataDir, 0700) < 0) { |
| 846 | LOGE("failed to chmod '%s': %s\n", dataDir, strerror(errno)); |
| 847 | rc = -1; |
| 848 | goto out; |
| 849 | } |
| 850 | |
| 851 | if (lstat(libdir, &libStat) < 0) { |
| 852 | LOGE("couldn't stat lib dir: %s\n", strerror(errno)); |
| 853 | rc = -1; |
| 854 | goto out; |
| 855 | } |
| 856 | |
| 857 | if (S_ISDIR(libStat.st_mode)) { |
| 858 | if (delete_dir_contents(libdir, 1, 0) < 0) { |
| 859 | rc = -1; |
| 860 | goto out; |
| 861 | } |
| 862 | } else if (S_ISLNK(libStat.st_mode)) { |
| 863 | if (unlink(libdir) < 0) { |
| 864 | rc = -1; |
| 865 | goto out; |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | if (symlink(asecLibDir, libdir) < 0) { |
| 870 | LOGE("couldn't symlink directory '%s' -> '%s': %s\n", libdir, asecLibDir, strerror(errno)); |
| 871 | rc = -errno; |
| 872 | goto out; |
| 873 | } |
| 874 | |
| 875 | if (lchown(libdir, AID_SYSTEM, AID_SYSTEM) < 0) { |
| 876 | LOGE("cannot chown dir '%s': %s\n", libdir, strerror(errno)); |
| 877 | unlink(libdir); |
| 878 | rc = -errno; |
| 879 | goto out; |
| 880 | } |
| 881 | |
| 882 | out: |
| 883 | if (chmod(dataDir, s.st_mode) < 0) { |
| 884 | LOGE("failed to chmod '%s': %s\n", dataDir, strerror(errno)); |
| 885 | return -errno; |
| 886 | } |
| 887 | |
| 888 | if (chown(dataDir, s.st_uid, s.st_gid) < 0) { |
| 889 | LOGE("failed to chown '%s' : %s\n", dataDir, strerror(errno)); |
| 890 | return -errno; |
| 891 | } |
| 892 | |
| 893 | return rc; |
| 894 | } |
| 895 | |
| 896 | int unlinklib(const char* dataDir) |
| 897 | { |
| 898 | char libdir[PKG_PATH_MAX]; |
| 899 | struct stat s, libStat; |
| 900 | int rc = 0; |
| 901 | |
| 902 | const size_t libdirLen = strlen(dataDir) + strlen(PKG_LIB_POSTFIX); |
| 903 | if (libdirLen >= PKG_PATH_MAX) { |
| 904 | return -1; |
| 905 | } |
| 906 | |
| 907 | if (snprintf(libdir, sizeof(libdir), "%s%s", dataDir, PKG_LIB_POSTFIX) != (ssize_t)libdirLen) { |
| 908 | LOGE("library dir not written successfully: %s\n", strerror(errno)); |
| 909 | return -1; |
| 910 | } |
| 911 | |
| 912 | if (stat(dataDir, &s) < 0) { |
| 913 | LOGE("couldn't state data dir"); |
| 914 | return -1; |
| 915 | } |
| 916 | |
| 917 | if (chown(dataDir, 0, 0) < 0) { |
| 918 | LOGE("failed to chown '%s': %s\n", dataDir, strerror(errno)); |
| 919 | return -1; |
| 920 | } |
| 921 | |
| 922 | if (chmod(dataDir, 0700) < 0) { |
| 923 | LOGE("failed to chmod '%s': %s\n", dataDir, strerror(errno)); |
| 924 | rc = -1; |
| 925 | goto out; |
| 926 | } |
| 927 | |
| 928 | if (lstat(libdir, &libStat) < 0) { |
| 929 | LOGE("couldn't stat lib dir: %s\n", strerror(errno)); |
| 930 | rc = -1; |
| 931 | goto out; |
| 932 | } |
| 933 | |
| 934 | if (S_ISDIR(libStat.st_mode)) { |
| 935 | if (delete_dir_contents(libdir, 1, 0) < 0) { |
| 936 | rc = -1; |
| 937 | goto out; |
| 938 | } |
| 939 | } else if (S_ISLNK(libStat.st_mode)) { |
| 940 | if (unlink(libdir) < 0) { |
| 941 | rc = -1; |
| 942 | goto out; |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | if (mkdir(libdir, 0755) < 0) { |
| 947 | LOGE("cannot create dir '%s': %s\n", libdir, strerror(errno)); |
| 948 | rc = -errno; |
| 949 | goto out; |
| 950 | } |
| 951 | |
| 952 | if (chown(libdir, AID_SYSTEM, AID_SYSTEM) < 0) { |
| 953 | LOGE("cannot chown dir '%s': %s\n", libdir, strerror(errno)); |
| 954 | unlink(libdir); |
| 955 | rc = -errno; |
| 956 | goto out; |
| 957 | } |
| 958 | |
| 959 | out: |
| 960 | if (chmod(dataDir, s.st_mode) < 0) { |
| 961 | LOGE("failed to chmod '%s': %s\n", dataDir, strerror(errno)); |
| 962 | return -1; |
| 963 | } |
| 964 | |
| 965 | if (chown(dataDir, s.st_uid, s.st_gid) < 0) { |
| 966 | LOGE("failed to chown '%s' : %s\n", dataDir, strerror(errno)); |
| 967 | return -1; |
| 968 | } |
| 969 | |
| 970 | return rc; |
| 971 | } |