blob: fad5ce6506a936a3db7fd74c3ea77fa19e56b8df [file] [log] [blame]
Mike Lockwood94afecf2012-10-24 10:45:23 -07001/*
2** Copyright 2008, The Android Open Source Project
3**
Dave Allisond9370732014-01-30 14:19:23 -08004** 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
Mike Lockwood94afecf2012-10-24 10:45:23 -07007**
Dave Allisond9370732014-01-30 14:19:23 -08008** http://www.apache.org/licenses/LICENSE-2.0
Mike Lockwood94afecf2012-10-24 10:45:23 -07009**
Dave Allisond9370732014-01-30 14:19:23 -080010** 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
Mike Lockwood94afecf2012-10-24 10:45:23 -070014** limitations under the License.
15*/
16
Andreas Gampe02d0de52015-11-11 20:43:16 -080017#include "commands.h"
18
19#include <errno.h>
20#include <inttypes.h>
21#include <stdlib.h>
22#include <sys/capability.h>
23#include <sys/file.h>
24#include <sys/resource.h>
25#include <sys/stat.h>
26#include <unistd.h>
Jeff Sharkey41ea4242015-04-09 11:34:03 -070027
Elliott Hughese4ec9eb2015-12-04 15:39:32 -080028#include <android-base/stringprintf.h>
29#include <android-base/logging.h>
Andreas Gampe02d0de52015-11-11 20:43:16 -080030#include <cutils/fs.h>
31#include <cutils/log.h> // TODO: Move everything to base/logging.
Jeff Sharkeye3637242015-04-08 20:56:42 -070032#include <cutils/sched_policy.h>
33#include <diskusage/dirsize.h>
34#include <logwrap/logwrap.h>
Andreas Gampe02d0de52015-11-11 20:43:16 -080035#include <private/android_filesystem_config.h>
Jeff Sharkeye3637242015-04-08 20:56:42 -070036#include <selinux/android.h>
Andreas Gampe02d0de52015-11-11 20:43:16 -080037#include <system/thread_defs.h>
Jeff Sharkeye3637242015-04-08 20:56:42 -070038
Andreas Gampe02d0de52015-11-11 20:43:16 -080039#include <globals.h>
40#include <installd_deps.h>
41#include <utils.h>
42
43#ifndef LOG_TAG
44#define LOG_TAG "installd"
45#endif
Jeff Sharkey41ea4242015-04-09 11:34:03 -070046
47using android::base::StringPrintf;
Mike Lockwood94afecf2012-10-24 10:45:23 -070048
Andreas Gampe02d0de52015-11-11 20:43:16 -080049namespace android {
50namespace installd {
Mike Lockwood94afecf2012-10-24 10:45:23 -070051
Jeff Sharkeye3637242015-04-08 20:56:42 -070052static const char* kCpPath = "/system/bin/cp";
53
Janis Danisevskiseecb2d22016-01-12 14:45:55 +000054#define MIN_RESTRICTED_HOME_SDK_VERSION 24 // > M
55
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070056int create_app_data(const char *uuid, const char *pkgname, userid_t userid, int flags,
Janis Danisevskiseecb2d22016-01-12 14:45:55 +000057 appid_t appid, const char* seinfo, int target_sdk_version) {
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070058 uid_t uid = multiuser_get_uid(userid, appid);
Janis Danisevskiseecb2d22016-01-12 14:45:55 +000059 int target_mode = target_sdk_version >= MIN_RESTRICTED_HOME_SDK_VERSION ? 0700 : 0751;
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070060 if (flags & FLAG_CE_STORAGE) {
61 auto path = create_data_user_package_path(uuid, userid, pkgname);
Janis Danisevskiseecb2d22016-01-12 14:45:55 +000062 if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, uid) != 0) {
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070063 PLOG(ERROR) << "Failed to prepare " << path;
64 return -1;
65 }
66 if (selinux_android_setfilecon(path.c_str(), pkgname, seinfo, uid) < 0) {
67 PLOG(ERROR) << "Failed to setfilecon " << path;
68 return -1;
69 }
Mike Lockwood94afecf2012-10-24 10:45:23 -070070 }
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070071 if (flags & FLAG_DE_STORAGE) {
72 auto path = create_data_user_de_package_path(uuid, userid, pkgname);
Janis Danisevskiseecb2d22016-01-12 14:45:55 +000073 if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, uid) == -1) {
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070074 PLOG(ERROR) << "Failed to prepare " << path;
Jeff Sharkeya03c7472016-01-13 09:47:08 -070075 // TODO: include result once 25796509 is fixed
76 return 0;
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070077 }
78 if (selinux_android_setfilecon(path.c_str(), pkgname, seinfo, uid) < 0) {
79 PLOG(ERROR) << "Failed to setfilecon " << path;
Jeff Sharkeya03c7472016-01-13 09:47:08 -070080 // TODO: include result once 25796509 is fixed
81 return 0;
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070082 }
Mike Lockwood94afecf2012-10-24 10:45:23 -070083 }
Mike Lockwood94afecf2012-10-24 10:45:23 -070084 return 0;
85}
86
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070087int clear_app_data(const char *uuid, const char *pkgname, userid_t userid, int flags) {
88 std::string suffix = "";
89 if (flags & FLAG_CLEAR_CACHE_ONLY) {
90 suffix = CACHE_DIR_POSTFIX;
91 } else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
92 suffix = CODE_CACHE_DIR_POSTFIX;
93 }
Mike Lockwood94afecf2012-10-24 10:45:23 -070094
Jeff Sharkeyebf728f2015-11-18 14:15:17 -070095 int res = 0;
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -070096 if (flags & FLAG_CE_STORAGE) {
97 auto path = create_data_user_package_path(uuid, userid, pkgname) + suffix;
98 if (access(path.c_str(), F_OK) == 0) {
99 res |= delete_dir_contents(path);
100 }
101 }
102 if (flags & FLAG_DE_STORAGE) {
103 auto path = create_data_user_de_package_path(uuid, userid, pkgname) + suffix;
104 if (access(path.c_str(), F_OK) == 0) {
Jeff Sharkeya03c7472016-01-13 09:47:08 -0700105 // TODO: include result once 25796509 is fixed
106 delete_dir_contents(path);
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700107 }
108 }
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700109 return res;
Mike Lockwood94afecf2012-10-24 10:45:23 -0700110}
111
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700112int destroy_app_data(const char *uuid, const char *pkgname, userid_t userid, int flags) {
113 int res = 0;
114 if (flags & FLAG_CE_STORAGE) {
115 res |= delete_dir_contents_and_dir(
116 create_data_user_package_path(uuid, userid, pkgname));
Mike Lockwood94afecf2012-10-24 10:45:23 -0700117 }
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700118 if (flags & FLAG_DE_STORAGE) {
Jeff Sharkeya03c7472016-01-13 09:47:08 -0700119 // TODO: include result once 25796509 is fixed
120 delete_dir_contents_and_dir(
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700121 create_data_user_de_package_path(uuid, userid, pkgname));
Mike Lockwood94afecf2012-10-24 10:45:23 -0700122 }
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700123 return res;
Mike Lockwood94afecf2012-10-24 10:45:23 -0700124}
125
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700126int move_complete_app(const char *from_uuid, const char *to_uuid, const char *package_name,
Janis Danisevskiseecb2d22016-01-12 14:45:55 +0000127 const char *data_app_name, appid_t appid, const char* seinfo, int target_sdk_version) {
Jeff Sharkeye3637242015-04-08 20:56:42 -0700128 std::vector<userid_t> users = get_known_users(from_uuid);
129
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700130 // Copy app
131 {
132 std::string from(create_data_app_package_path(from_uuid, data_app_name));
133 std::string to(create_data_app_package_path(to_uuid, data_app_name));
134 std::string to_parent(create_data_app_path(to_uuid));
135
136 char *argv[] = {
137 (char*) kCpPath,
138 (char*) "-F", /* delete any existing destination file first (--remove-destination) */
139 (char*) "-p", /* preserve timestamps, ownership, and permissions */
140 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
141 (char*) "-P", /* Do not follow symlinks [default] */
142 (char*) "-d", /* don't dereference symlinks */
143 (char*) from.c_str(),
144 (char*) to_parent.c_str()
145 };
146
147 LOG(DEBUG) << "Copying " << from << " to " << to;
148 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
149
150 if (rc != 0) {
151 LOG(ERROR) << "Failed copying " << from << " to " << to
152 << ": status " << rc;
153 goto fail;
154 }
155
156 if (selinux_android_restorecon(to.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {
157 LOG(ERROR) << "Failed to restorecon " << to;
158 goto fail;
159 }
160 }
161
162 // Copy private data for all known users
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700163 // TODO: handle user_de paths
Jeff Sharkeye3637242015-04-08 20:56:42 -0700164 for (auto user : users) {
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700165 std::string from(create_data_user_package_path(from_uuid, user, package_name));
166 std::string to(create_data_user_package_path(to_uuid, user, package_name));
167 std::string to_parent(create_data_user_path(to_uuid, user));
Jeff Sharkeye3637242015-04-08 20:56:42 -0700168
169 // Data source may not exist for all users; that's okay
170 if (access(from.c_str(), F_OK) != 0) {
171 LOG(INFO) << "Missing source " << from;
172 continue;
173 }
174
175 std::string user_path(create_data_user_path(to_uuid, user));
176 if (fs_prepare_dir(user_path.c_str(), 0771, AID_SYSTEM, AID_SYSTEM) != 0) {
177 LOG(ERROR) << "Failed to prepare user target " << user_path;
178 goto fail;
179 }
180
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700181 if (create_app_data(to_uuid, package_name, user, FLAG_CE_STORAGE | FLAG_DE_STORAGE,
Janis Danisevskiseecb2d22016-01-12 14:45:55 +0000182 appid, seinfo, target_sdk_version) != 0) {
Jeff Sharkeye3637242015-04-08 20:56:42 -0700183 LOG(ERROR) << "Failed to create package target " << to;
184 goto fail;
185 }
186
187 char *argv[] = {
188 (char*) kCpPath,
189 (char*) "-F", /* delete any existing destination file first (--remove-destination) */
190 (char*) "-p", /* preserve timestamps, ownership, and permissions */
191 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
192 (char*) "-P", /* Do not follow symlinks [default] */
193 (char*) "-d", /* don't dereference symlinks */
194 (char*) from.c_str(),
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700195 (char*) to_parent.c_str()
Jeff Sharkeye3637242015-04-08 20:56:42 -0700196 };
197
198 LOG(DEBUG) << "Copying " << from << " to " << to;
199 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
200
201 if (rc != 0) {
202 LOG(ERROR) << "Failed copying " << from << " to " << to
203 << ": status " << rc;
204 goto fail;
205 }
206
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700207 if (restorecon_app_data(to_uuid, package_name, user, FLAG_CE_STORAGE | FLAG_DE_STORAGE,
208 appid, seinfo) != 0) {
209 LOG(ERROR) << "Failed to restorecon";
210 goto fail;
211 }
Jeff Sharkeye3637242015-04-08 20:56:42 -0700212 }
213
Jeff Sharkey31f08982015-07-07 13:31:37 -0700214 // We let the framework scan the new location and persist that before
215 // deleting the data in the old location; this ordering ensures that
216 // we can recover from things like battery pulls.
Jeff Sharkeye3637242015-04-08 20:56:42 -0700217 return 0;
218
219fail:
220 // Nuke everything we might have already copied
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700221 {
222 std::string to(create_data_app_package_path(to_uuid, data_app_name));
223 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
224 LOG(WARNING) << "Failed to rollback " << to;
225 }
226 }
Jeff Sharkeye3637242015-04-08 20:56:42 -0700227 for (auto user : users) {
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700228 std::string to(create_data_user_package_path(to_uuid, user, package_name));
Jeff Sharkeye3637242015-04-08 20:56:42 -0700229 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
230 LOG(WARNING) << "Failed to rollback " << to;
231 }
232 }
233 return -1;
234}
235
Robin Lee7c8bec02014-06-10 18:46:26 +0100236int make_user_config(userid_t userid)
Mike Lockwood94afecf2012-10-24 10:45:23 -0700237{
Robin Lee095c7632014-04-25 15:05:19 +0100238 if (ensure_config_user_dirs(userid) == -1) {
Mike Lockwood94afecf2012-10-24 10:45:23 -0700239 return -1;
240 }
241
242 return 0;
243}
244
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700245int delete_user(const char *uuid, userid_t userid) {
246 int res = 0;
Robin Lee095c7632014-04-25 15:05:19 +0100247
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700248 std::string data_path(create_data_user_path(uuid, userid));
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700249 std::string data_de_path(create_data_user_de_path(uuid, userid));
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700250 std::string media_path(create_data_media_path(uuid, userid));
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700251
252 res |= delete_dir_contents_and_dir(data_path);
Jeff Sharkeya03c7472016-01-13 09:47:08 -0700253 // TODO: include result once 25796509 is fixed
254 delete_dir_contents_and_dir(data_de_path);
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700255 res |= delete_dir_contents_and_dir(media_path);
Robin Lee095c7632014-04-25 15:05:19 +0100256
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700257 // Config paths only exist on internal storage
258 if (uuid == nullptr) {
259 char config_path[PATH_MAX];
260 if ((create_user_config_path(config_path, userid) != 0)
261 || (delete_dir_contents(config_path, 1, NULL) != 0)) {
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700262 res = -1;
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700263 }
Robin Lee095c7632014-04-25 15:05:19 +0100264 }
265
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700266 return res;
Robin Lee095c7632014-04-25 15:05:19 +0100267}
268
Mike Lockwood94afecf2012-10-24 10:45:23 -0700269/* Try to ensure free_size bytes of storage are available.
270 * Returns 0 on success.
271 * This is rather simple-minded because doing a full LRU would
272 * be potentially memory-intensive, and without atime it would
273 * also require that apps constantly modify file metadata even
274 * when just reading from the cache, which is pretty awful.
275 */
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700276int free_cache(const char *uuid, int64_t free_size)
Mike Lockwood94afecf2012-10-24 10:45:23 -0700277{
278 cache_t* cache;
279 int64_t avail;
280 DIR *d;
281 struct dirent *de;
282 char tmpdir[PATH_MAX];
283 char *dirpos;
284
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700285 std::string data_path(create_data_path(uuid));
286
287 avail = data_disk_free(data_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -0700288 if (avail < 0) return -1;
289
290 ALOGI("free_cache(%" PRId64 ") avail %" PRId64 "\n", free_size, avail);
291 if (avail >= free_size) return 0;
292
293 cache = start_cache_collection();
294
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700295 // Special case for owner on internal storage
296 if (uuid == nullptr) {
297 std::string _tmpdir(create_data_user_path(nullptr, 0));
298 add_cache_files(cache, _tmpdir.c_str(), "cache");
Mike Lockwood94afecf2012-10-24 10:45:23 -0700299 }
300
301 // Search for other users and add any cache files from them.
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700302 std::string _tmpdir(create_data_path(uuid) + "/" + SECONDARY_USER_PREFIX);
303 strcpy(tmpdir, _tmpdir.c_str());
304
Mike Lockwood94afecf2012-10-24 10:45:23 -0700305 dirpos = tmpdir + strlen(tmpdir);
306 d = opendir(tmpdir);
307 if (d != NULL) {
308 while ((de = readdir(d))) {
309 if (de->d_type == DT_DIR) {
310 const char *name = de->d_name;
311 /* always skip "." and ".." */
312 if (name[0] == '.') {
313 if (name[1] == 0) continue;
314 if ((name[1] == '.') && (name[2] == 0)) continue;
315 }
316 if ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) {
317 strcpy(dirpos, name);
318 //ALOGI("adding cache files from %s\n", tmpdir);
319 add_cache_files(cache, tmpdir, "cache");
320 } else {
321 ALOGW("Path exceeds limit: %s%s", tmpdir, name);
322 }
323 }
324 }
325 closedir(d);
326 }
327
328 // Collect cache files on external storage for all users (if it is mounted as part
329 // of the internal storage).
330 strcpy(tmpdir, android_media_dir.path);
331 dirpos = tmpdir + strlen(tmpdir);
332 d = opendir(tmpdir);
333 if (d != NULL) {
334 while ((de = readdir(d))) {
335 if (de->d_type == DT_DIR) {
336 const char *name = de->d_name;
337 /* skip any dir that doesn't start with a number, so not a user */
338 if (name[0] < '0' || name[0] > '9') {
339 continue;
340 }
341 if ((strlen(name)+(dirpos-tmpdir)) < (sizeof(tmpdir)-1)) {
342 strcpy(dirpos, name);
343 if (lookup_media_dir(tmpdir, "Android") == 0
344 && lookup_media_dir(tmpdir, "data") == 0) {
345 //ALOGI("adding cache files from %s\n", tmpdir);
346 add_cache_files(cache, tmpdir, "cache");
347 }
348 } else {
349 ALOGW("Path exceeds limit: %s%s", tmpdir, name);
350 }
351 }
352 }
353 closedir(d);
354 }
355
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700356 clear_cache_files(data_path, cache, free_size);
Mike Lockwood94afecf2012-10-24 10:45:23 -0700357 finish_cache_collection(cache);
358
Jeff Sharkey41ea4242015-04-09 11:34:03 -0700359 return data_disk_free(data_path) >= free_size ? 0 : -1;
Mike Lockwood94afecf2012-10-24 10:45:23 -0700360}
361
Narayan Kamath1b400322014-04-11 13:17:00 +0100362int rm_dex(const char *path, const char *instruction_set)
Mike Lockwood94afecf2012-10-24 10:45:23 -0700363{
364 char dex_path[PKG_PATH_MAX];
365
Jeff Sharkey770180a2014-09-08 17:14:26 -0700366 if (validate_apk_path(path) && validate_system_app_path(path)) {
367 ALOGE("invalid apk path '%s' (bad prefix)\n", path);
368 return -1;
369 }
370
Andreas Gampe02d0de52015-11-11 20:43:16 -0800371 if (!create_cache_path(dex_path, path, instruction_set)) return -1;
Mike Lockwood94afecf2012-10-24 10:45:23 -0700372
373 ALOGV("unlink %s\n", dex_path);
374 if (unlink(dex_path) < 0) {
Jeff Sharkey770180a2014-09-08 17:14:26 -0700375 if (errno != ENOENT) {
376 ALOGE("Couldn't unlink %s: %s\n", dex_path, strerror(errno));
377 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700378 return -1;
379 } else {
380 return 0;
381 }
382}
383
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700384int get_app_size(const char *uuid, const char *pkgname, int userid, int flags,
385 const char *apkpath, const char *libdirpath, const char *fwdlock_apkpath,
386 const char *asecpath, const char *instruction_set, int64_t *_codesize, int64_t *_datasize,
387 int64_t *_cachesize, int64_t* _asecsize) {
Mike Lockwood94afecf2012-10-24 10:45:23 -0700388 DIR *d;
389 int dfd;
390 struct dirent *de;
391 struct stat s;
392 char path[PKG_PATH_MAX];
393
394 int64_t codesize = 0;
395 int64_t datasize = 0;
396 int64_t cachesize = 0;
397 int64_t asecsize = 0;
398
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700399 /* count the source apk as code -- but only if it's not
400 * on the /system partition and its not on the sdcard. */
Mike Lockwood94afecf2012-10-24 10:45:23 -0700401 if (validate_system_app_path(apkpath) &&
402 strncmp(apkpath, android_asec_dir.path, android_asec_dir.len) != 0) {
403 if (stat(apkpath, &s) == 0) {
404 codesize += stat_size(&s);
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700405 if (S_ISDIR(s.st_mode)) {
406 d = opendir(apkpath);
407 if (d != NULL) {
408 dfd = dirfd(d);
409 codesize += calculate_dir_size(dfd);
410 closedir(d);
411 }
412 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700413 }
414 }
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700415
416 /* count the forward locked apk as code if it is given */
Mike Lockwood94afecf2012-10-24 10:45:23 -0700417 if (fwdlock_apkpath != NULL && fwdlock_apkpath[0] != '!') {
418 if (stat(fwdlock_apkpath, &s) == 0) {
419 codesize += stat_size(&s);
420 }
421 }
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700422
423 /* count the cached dexfile as code */
Andreas Gampe02d0de52015-11-11 20:43:16 -0800424 if (create_cache_path(path, apkpath, instruction_set)) {
Mike Lockwood94afecf2012-10-24 10:45:23 -0700425 if (stat(path, &s) == 0) {
426 codesize += stat_size(&s);
427 }
428 }
429
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700430 /* add in size of any libraries */
Dianne Hackborn8b417802013-05-01 18:55:10 -0700431 if (libdirpath != NULL && libdirpath[0] != '!') {
432 d = opendir(libdirpath);
Mike Lockwood94afecf2012-10-24 10:45:23 -0700433 if (d != NULL) {
434 dfd = dirfd(d);
435 codesize += calculate_dir_size(dfd);
436 closedir(d);
437 }
438 }
439
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700440 /* compute asec size if it is given */
Mike Lockwood94afecf2012-10-24 10:45:23 -0700441 if (asecpath != NULL && asecpath[0] != '!') {
442 if (stat(asecpath, &s) == 0) {
443 asecsize += stat_size(&s);
444 }
445 }
446
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700447 std::vector<userid_t> users;
448 if (userid == -1) {
449 users = get_known_users(uuid);
450 } else {
451 users.push_back(userid);
Mike Lockwood94afecf2012-10-24 10:45:23 -0700452 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700453
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700454 for (auto user : users) {
Jeff Sharkeyebf728f2015-11-18 14:15:17 -0700455 // TODO: handle user_de directories
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -0700456 if (!(flags & FLAG_CE_STORAGE)) continue;
457
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700458 std::string _pkgdir(create_data_user_package_path(uuid, user, pkgname));
459 const char* pkgdir = _pkgdir.c_str();
Mike Lockwood94afecf2012-10-24 10:45:23 -0700460
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700461 d = opendir(pkgdir);
462 if (d == NULL) {
463 PLOG(WARNING) << "Failed to open " << pkgdir;
464 continue;
465 }
466 dfd = dirfd(d);
467
468 /* most stuff in the pkgdir is data, except for the "cache"
469 * directory and below, which is cache, and the "lib" directory
470 * and below, which is code...
471 */
472 while ((de = readdir(d))) {
473 const char *name = de->d_name;
474
475 if (de->d_type == DT_DIR) {
476 int subfd;
477 int64_t statsize = 0;
478 int64_t dirsize = 0;
479 /* always skip "." and ".." */
480 if (name[0] == '.') {
481 if (name[1] == 0) continue;
482 if ((name[1] == '.') && (name[2] == 0)) continue;
483 }
484 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
485 statsize = stat_size(&s);
486 }
487 subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY);
488 if (subfd >= 0) {
489 dirsize = calculate_dir_size(subfd);
490 }
491 if(!strcmp(name,"lib")) {
492 codesize += dirsize + statsize;
493 } else if(!strcmp(name,"cache")) {
494 cachesize += dirsize + statsize;
495 } else {
496 datasize += dirsize + statsize;
497 }
498 } else if (de->d_type == DT_LNK && !strcmp(name,"lib")) {
499 // This is the symbolic link to the application's library
500 // code. We'll count this as code instead of data, since
501 // it is not something that the app creates.
502 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
503 codesize += stat_size(&s);
504 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700505 } else {
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700506 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
507 datasize += stat_size(&s);
508 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700509 }
510 }
Jeff Sharkeyd7921182015-04-30 15:58:19 -0700511 closedir(d);
Mike Lockwood94afecf2012-10-24 10:45:23 -0700512 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700513 *_codesize = codesize;
514 *_datasize = datasize;
515 *_cachesize = cachesize;
516 *_asecsize = asecsize;
517 return 0;
518}
519
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700520static int split_count(const char *str)
521{
522 char *ctx;
523 int count = 0;
Andreas Gampe02d0de52015-11-11 20:43:16 -0800524 char buf[kPropertyValueMax];
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700525
526 strncpy(buf, str, sizeof(buf));
527 char *pBuf = buf;
528
529 while(strtok_r(pBuf, " ", &ctx) != NULL) {
530 count++;
531 pBuf = NULL;
532 }
533
534 return count;
535}
536
neo.chae14e084d2015-01-07 18:46:13 +0900537static int split(char *buf, const char **argv)
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700538{
539 char *ctx;
540 int count = 0;
541 char *tok;
542 char *pBuf = buf;
543
544 while((tok = strtok_r(pBuf, " ", &ctx)) != NULL) {
545 argv[count++] = tok;
546 pBuf = NULL;
547 }
548
549 return count;
550}
551
Alex Light7365a102014-07-21 12:23:48 -0700552static void run_patchoat(int input_fd, int oat_fd, const char* input_file_name,
Andreas Gampe02d0de52015-11-11 20:43:16 -0800553 const char* output_file_name, const char *pkgname ATTRIBUTE_UNUSED, const char *instruction_set)
Alex Light7365a102014-07-21 12:23:48 -0700554{
555 static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig
Calin Juravle8fc73152014-08-19 18:48:50 +0100556 static const unsigned int MAX_INSTRUCTION_SET_LEN = 7;
Alex Light7365a102014-07-21 12:23:48 -0700557
558 static const char* PATCHOAT_BIN = "/system/bin/patchoat";
559 if (strlen(instruction_set) >= MAX_INSTRUCTION_SET_LEN) {
560 ALOGE("Instruction set %s longer than max length of %d",
561 instruction_set, MAX_INSTRUCTION_SET_LEN);
562 return;
563 }
564
565 /* input_file_name/input_fd should be the .odex/.oat file that is precompiled. I think*/
566 char instruction_set_arg[strlen("--instruction-set=") + MAX_INSTRUCTION_SET_LEN];
567 char output_oat_fd_arg[strlen("--output-oat-fd=") + MAX_INT_LEN];
568 char input_oat_fd_arg[strlen("--input-oat-fd=") + MAX_INT_LEN];
569 const char* patched_image_location_arg = "--patched-image-location=/system/framework/boot.art";
570 // The caller has already gotten all the locks we need.
571 const char* no_lock_arg = "--no-lock-output";
572 sprintf(instruction_set_arg, "--instruction-set=%s", instruction_set);
573 sprintf(output_oat_fd_arg, "--output-oat-fd=%d", oat_fd);
574 sprintf(input_oat_fd_arg, "--input-oat-fd=%d", input_fd);
Alex Lighta7915d42014-08-11 10:07:02 -0700575 ALOGV("Running %s isa=%s in-fd=%d (%s) out-fd=%d (%s)\n",
Alex Light7365a102014-07-21 12:23:48 -0700576 PATCHOAT_BIN, instruction_set, input_fd, input_file_name, oat_fd, output_file_name);
577
578 /* patchoat, patched-image-location, no-lock, isa, input-fd, output-fd */
579 char* argv[7];
580 argv[0] = (char*) PATCHOAT_BIN;
581 argv[1] = (char*) patched_image_location_arg;
582 argv[2] = (char*) no_lock_arg;
583 argv[3] = instruction_set_arg;
584 argv[4] = output_oat_fd_arg;
585 argv[5] = input_oat_fd_arg;
586 argv[6] = NULL;
587
588 execv(PATCHOAT_BIN, (char* const *)argv);
589 ALOGE("execv(%s) failed: %s\n", PATCHOAT_BIN, strerror(errno));
590}
591
Andreas Gampe3822b8b2015-04-24 14:30:04 -0700592static bool check_boolean_property(const char* property_name, bool default_value = false) {
Andreas Gampe02d0de52015-11-11 20:43:16 -0800593 char tmp_property_value[kPropertyValueMax];
594 bool have_property = get_property(property_name, tmp_property_value, nullptr) > 0;
Andreas Gampe3822b8b2015-04-24 14:30:04 -0700595 if (!have_property) {
596 return default_value;
597 }
598 return strcmp(tmp_property_value, "true") == 0;
599}
600
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700601static void run_dex2oat(int zip_fd, int oat_fd, const char* input_file_name,
Calin Juravledf9dadd2015-11-04 14:47:37 +0000602 const char* output_file_name, int swap_fd, const char *instruction_set,
David Brazdilb0fad6d2015-12-30 11:16:04 +0000603 bool vm_safe_mode, bool debuggable, bool post_bootcomplete, bool extract_only,
604 const std::vector<int>& profile_files_fd, const std::vector<int>& reference_profile_files_fd) {
Calin Juravle8fc73152014-08-19 18:48:50 +0100605 static const unsigned int MAX_INSTRUCTION_SET_LEN = 7;
606
607 if (strlen(instruction_set) >= MAX_INSTRUCTION_SET_LEN) {
608 ALOGE("Instruction set %s longer than max length of %d",
609 instruction_set, MAX_INSTRUCTION_SET_LEN);
610 return;
611 }
612
Calin Juravle60a794d2015-12-24 12:36:41 +0200613 if (profile_files_fd.size() != reference_profile_files_fd.size()) {
614 ALOGE("Invalid configuration of profile files: pf_size (%zu) != rpf_size (%zu)",
615 profile_files_fd.size(), reference_profile_files_fd.size());
616 return;
617 }
618
Andreas Gampe02d0de52015-11-11 20:43:16 -0800619 char dex2oat_Xms_flag[kPropertyValueMax];
620 bool have_dex2oat_Xms_flag = get_property("dalvik.vm.dex2oat-Xms", dex2oat_Xms_flag, NULL) > 0;
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700621
Andreas Gampe02d0de52015-11-11 20:43:16 -0800622 char dex2oat_Xmx_flag[kPropertyValueMax];
623 bool have_dex2oat_Xmx_flag = get_property("dalvik.vm.dex2oat-Xmx", dex2oat_Xmx_flag, NULL) > 0;
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700624
Andreas Gampe02d0de52015-11-11 20:43:16 -0800625 char dex2oat_compiler_filter_flag[kPropertyValueMax];
626 bool have_dex2oat_compiler_filter_flag = get_property("dalvik.vm.dex2oat-filter",
Brian Carlstromcf51ba12014-07-28 19:13:28 -0700627 dex2oat_compiler_filter_flag, NULL) > 0;
628
Andreas Gampe02d0de52015-11-11 20:43:16 -0800629 char dex2oat_threads_buf[kPropertyValueMax];
630 bool have_dex2oat_threads_flag = get_property(post_bootcomplete
Andreas Gampe919461c2015-09-28 08:55:01 -0700631 ? "dalvik.vm.dex2oat-threads"
632 : "dalvik.vm.boot-dex2oat-threads",
633 dex2oat_threads_buf,
634 NULL) > 0;
Andreas Gampe02d0de52015-11-11 20:43:16 -0800635 char dex2oat_threads_arg[kPropertyValueMax + 2];
Andreas Gampe8d7af8b2015-03-30 18:45:03 -0700636 if (have_dex2oat_threads_flag) {
637 sprintf(dex2oat_threads_arg, "-j%s", dex2oat_threads_buf);
638 }
639
Andreas Gampe02d0de52015-11-11 20:43:16 -0800640 char dex2oat_isa_features_key[kPropertyKeyMax];
Calin Juravle8fc73152014-08-19 18:48:50 +0100641 sprintf(dex2oat_isa_features_key, "dalvik.vm.isa.%s.features", instruction_set);
Andreas Gampe02d0de52015-11-11 20:43:16 -0800642 char dex2oat_isa_features[kPropertyValueMax];
643 bool have_dex2oat_isa_features = get_property(dex2oat_isa_features_key,
Calin Juravle8fc73152014-08-19 18:48:50 +0100644 dex2oat_isa_features, NULL) > 0;
645
Andreas Gampe02d0de52015-11-11 20:43:16 -0800646 char dex2oat_isa_variant_key[kPropertyKeyMax];
Ian Rogers16a95b22014-11-08 16:58:13 -0800647 sprintf(dex2oat_isa_variant_key, "dalvik.vm.isa.%s.variant", instruction_set);
Andreas Gampe02d0de52015-11-11 20:43:16 -0800648 char dex2oat_isa_variant[kPropertyValueMax];
649 bool have_dex2oat_isa_variant = get_property(dex2oat_isa_variant_key,
Ian Rogers16a95b22014-11-08 16:58:13 -0800650 dex2oat_isa_variant, NULL) > 0;
651
neo.chae14e084d2015-01-07 18:46:13 +0900652 const char *dex2oat_norelocation = "-Xnorelocate";
653 bool have_dex2oat_relocation_skip_flag = false;
654
Andreas Gampe02d0de52015-11-11 20:43:16 -0800655 char dex2oat_flags[kPropertyValueMax];
656 int dex2oat_flags_count = get_property("dalvik.vm.dex2oat-flags",
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700657 dex2oat_flags, NULL) <= 0 ? 0 : split_count(dex2oat_flags);
Brian Carlstrom0ae8e392014-02-10 16:42:52 -0800658 ALOGV("dalvik.vm.dex2oat-flags=%s\n", dex2oat_flags);
659
Brian Carlstrom538998f2014-07-30 14:37:11 -0700660 // If we booting without the real /data, don't spend time compiling.
Andreas Gampe02d0de52015-11-11 20:43:16 -0800661 char vold_decrypt[kPropertyValueMax];
662 bool have_vold_decrypt = get_property("vold.decrypt", vold_decrypt, "") > 0;
Brian Carlstrom538998f2014-07-30 14:37:11 -0700663 bool skip_compilation = (have_vold_decrypt &&
664 (strcmp(vold_decrypt, "trigger_restart_min_framework") == 0 ||
665 (strcmp(vold_decrypt, "1") == 0)));
666
David Srbecky528c8dd2015-05-28 16:55:50 +0100667 bool generate_debug_info = check_boolean_property("debug.generate-debug-info");
Mathieu Chartierd4a7b452015-03-20 15:39:47 -0700668
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700669 static const char* DEX2OAT_BIN = "/system/bin/dex2oat";
Brian Carlstrom53e07762014-06-27 14:15:19 -0700670
Brian Carlstrom53e07762014-06-27 14:15:19 -0700671 static const char* RUNTIME_ARG = "--runtime-arg";
Brian Carlstrom53e07762014-06-27 14:15:19 -0700672
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700673 static const int MAX_INT_LEN = 12; // '-'+10dig+'\0' -OR- 0x+8dig
Narayan Kamath1b400322014-04-11 13:17:00 +0100674
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700675 char zip_fd_arg[strlen("--zip-fd=") + MAX_INT_LEN];
676 char zip_location_arg[strlen("--zip-location=") + PKG_PATH_MAX];
677 char oat_fd_arg[strlen("--oat-fd=") + MAX_INT_LEN];
Brian Carlstrom7195fcc2014-06-16 13:28:03 -0700678 char oat_location_arg[strlen("--oat-location=") + PKG_PATH_MAX];
Narayan Kamath1b400322014-04-11 13:17:00 +0100679 char instruction_set_arg[strlen("--instruction-set=") + MAX_INSTRUCTION_SET_LEN];
Andreas Gampe02d0de52015-11-11 20:43:16 -0800680 char instruction_set_variant_arg[strlen("--instruction-set-variant=") + kPropertyValueMax];
681 char instruction_set_features_arg[strlen("--instruction-set-features=") + kPropertyValueMax];
682 char dex2oat_Xms_arg[strlen("-Xms") + kPropertyValueMax];
683 char dex2oat_Xmx_arg[strlen("-Xmx") + kPropertyValueMax];
684 char dex2oat_compiler_filter_arg[strlen("--compiler-filter=") + kPropertyValueMax];
Andreas Gampee1c01352014-12-10 16:41:11 -0800685 bool have_dex2oat_swap_fd = false;
686 char dex2oat_swap_fd[strlen("--swap-fd=") + MAX_INT_LEN];
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700687
688 sprintf(zip_fd_arg, "--zip-fd=%d", zip_fd);
689 sprintf(zip_location_arg, "--zip-location=%s", input_file_name);
690 sprintf(oat_fd_arg, "--oat-fd=%d", oat_fd);
691 sprintf(oat_location_arg, "--oat-location=%s", output_file_name);
Narayan Kamath1b400322014-04-11 13:17:00 +0100692 sprintf(instruction_set_arg, "--instruction-set=%s", instruction_set);
Ian Rogers16a95b22014-11-08 16:58:13 -0800693 sprintf(instruction_set_variant_arg, "--instruction-set-variant=%s", dex2oat_isa_variant);
Calin Juravle8fc73152014-08-19 18:48:50 +0100694 sprintf(instruction_set_features_arg, "--instruction-set-features=%s", dex2oat_isa_features);
Andreas Gampee1c01352014-12-10 16:41:11 -0800695 if (swap_fd >= 0) {
696 have_dex2oat_swap_fd = true;
697 sprintf(dex2oat_swap_fd, "--swap-fd=%d", swap_fd);
698 }
Calin Juravle57c69c32014-06-06 14:42:16 +0100699
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700700 if (have_dex2oat_Xms_flag) {
701 sprintf(dex2oat_Xms_arg, "-Xms%s", dex2oat_Xms_flag);
702 }
703 if (have_dex2oat_Xmx_flag) {
704 sprintf(dex2oat_Xmx_arg, "-Xmx%s", dex2oat_Xmx_flag);
705 }
Brian Carlstrom538998f2014-07-30 14:37:11 -0700706 if (skip_compilation) {
Brian Carlstrome18987e2014-08-15 09:55:50 -0700707 strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=verify-none");
Brian Carlstrom538998f2014-07-30 14:37:11 -0700708 have_dex2oat_compiler_filter_flag = true;
neo.chae14e084d2015-01-07 18:46:13 +0900709 have_dex2oat_relocation_skip_flag = true;
Calin Juravleb1efac12014-08-21 19:05:20 +0100710 } else if (vm_safe_mode) {
711 strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=interpret-only");
Calin Juravle97477d22014-08-27 16:10:03 +0100712 have_dex2oat_compiler_filter_flag = true;
David Brazdilb0fad6d2015-12-30 11:16:04 +0000713 } else if (extract_only) {
Mathieu Chartierd4a7b452015-03-20 15:39:47 -0700714 strcpy(dex2oat_compiler_filter_arg, "--compiler-filter=verify-at-runtime");
715 have_dex2oat_compiler_filter_flag = true;
Brian Carlstrom538998f2014-07-30 14:37:11 -0700716 } else if (have_dex2oat_compiler_filter_flag) {
Brian Carlstromcf51ba12014-07-28 19:13:28 -0700717 sprintf(dex2oat_compiler_filter_arg, "--compiler-filter=%s", dex2oat_compiler_filter_flag);
718 }
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700719
Andreas Gampe598c25e2015-03-03 09:15:06 -0800720 // Check whether all apps should be compiled debuggable.
721 if (!debuggable) {
Andreas Gampe02d0de52015-11-11 20:43:16 -0800722 char prop_buf[kPropertyValueMax];
Andreas Gampe598c25e2015-03-03 09:15:06 -0800723 debuggable =
Andreas Gampe02d0de52015-11-11 20:43:16 -0800724 (get_property("dalvik.vm.always_debuggable", prop_buf, "0") > 0) &&
Andreas Gampe598c25e2015-03-03 09:15:06 -0800725 (prop_buf[0] == '1');
726 }
Calin Juravle60a794d2015-12-24 12:36:41 +0200727 std::vector<std::string> profile_file_args(profile_files_fd.size());
728 std::vector<std::string> reference_profile_file_args(profile_files_fd.size());
729 // "reference-profile-file-fd" is longer than "profile-file-fd" so we can
730 // use it to set the max length.
731 char profile_buf[strlen("--reference-profile-file-fd=") + MAX_INT_LEN];
732 for (size_t k = 0; k < profile_files_fd.size(); k++) {
733 sprintf(profile_buf, "--profile-file-fd=%d", profile_files_fd[k]);
734 profile_file_args[k].assign(profile_buf);
735 sprintf(profile_buf, "--reference-profile-file-fd=%d", reference_profile_files_fd[k]);
736 reference_profile_file_args[k].assign(profile_buf);
737 }
Andreas Gampe598c25e2015-03-03 09:15:06 -0800738
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700739 ALOGV("Running %s in=%s out=%s\n", DEX2OAT_BIN, input_file_name, output_file_name);
Calin Juravle4fdff462014-06-06 16:58:43 +0100740
neo.chae14e084d2015-01-07 18:46:13 +0900741 const char* argv[7 // program name, mandatory arguments and the final NULL
742 + (have_dex2oat_isa_variant ? 1 : 0)
743 + (have_dex2oat_isa_features ? 1 : 0)
neo.chae14e084d2015-01-07 18:46:13 +0900744 + (have_dex2oat_Xms_flag ? 2 : 0)
745 + (have_dex2oat_Xmx_flag ? 2 : 0)
746 + (have_dex2oat_compiler_filter_flag ? 1 : 0)
Andreas Gampe8d7af8b2015-03-30 18:45:03 -0700747 + (have_dex2oat_threads_flag ? 1 : 0)
neo.chae14e084d2015-01-07 18:46:13 +0900748 + (have_dex2oat_swap_fd ? 1 : 0)
749 + (have_dex2oat_relocation_skip_flag ? 2 : 0)
David Srbecky528c8dd2015-05-28 16:55:50 +0100750 + (generate_debug_info ? 1 : 0)
Andreas Gampe598c25e2015-03-03 09:15:06 -0800751 + (debuggable ? 1 : 0)
Calin Juravle60a794d2015-12-24 12:36:41 +0200752 + dex2oat_flags_count
753 + profile_files_fd.size()
754 + reference_profile_files_fd.size()];
Calin Juravle4fdff462014-06-06 16:58:43 +0100755 int i = 0;
neo.chae14e084d2015-01-07 18:46:13 +0900756 argv[i++] = DEX2OAT_BIN;
Calin Juravle4fdff462014-06-06 16:58:43 +0100757 argv[i++] = zip_fd_arg;
758 argv[i++] = zip_location_arg;
759 argv[i++] = oat_fd_arg;
760 argv[i++] = oat_location_arg;
761 argv[i++] = instruction_set_arg;
Ian Rogers16a95b22014-11-08 16:58:13 -0800762 if (have_dex2oat_isa_variant) {
763 argv[i++] = instruction_set_variant_arg;
764 }
Calin Juravle8fc73152014-08-19 18:48:50 +0100765 if (have_dex2oat_isa_features) {
766 argv[i++] = instruction_set_features_arg;
767 }
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700768 if (have_dex2oat_Xms_flag) {
neo.chae14e084d2015-01-07 18:46:13 +0900769 argv[i++] = RUNTIME_ARG;
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700770 argv[i++] = dex2oat_Xms_arg;
771 }
772 if (have_dex2oat_Xmx_flag) {
neo.chae14e084d2015-01-07 18:46:13 +0900773 argv[i++] = RUNTIME_ARG;
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700774 argv[i++] = dex2oat_Xmx_arg;
775 }
Brian Carlstromcf51ba12014-07-28 19:13:28 -0700776 if (have_dex2oat_compiler_filter_flag) {
777 argv[i++] = dex2oat_compiler_filter_arg;
778 }
Andreas Gampe8d7af8b2015-03-30 18:45:03 -0700779 if (have_dex2oat_threads_flag) {
780 argv[i++] = dex2oat_threads_arg;
781 }
Andreas Gampee1c01352014-12-10 16:41:11 -0800782 if (have_dex2oat_swap_fd) {
783 argv[i++] = dex2oat_swap_fd;
784 }
David Srbecky528c8dd2015-05-28 16:55:50 +0100785 if (generate_debug_info) {
786 argv[i++] = "--generate-debug-info";
Andreas Gampe3822b8b2015-04-24 14:30:04 -0700787 }
Andreas Gampe598c25e2015-03-03 09:15:06 -0800788 if (debuggable) {
789 argv[i++] = "--debuggable";
790 }
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700791 if (dex2oat_flags_count) {
792 i += split(dex2oat_flags, argv + i);
Calin Juravle4fdff462014-06-06 16:58:43 +0100793 }
neo.chae14e084d2015-01-07 18:46:13 +0900794 if (have_dex2oat_relocation_skip_flag) {
795 argv[i++] = RUNTIME_ARG;
796 argv[i++] = dex2oat_norelocation;
797 }
Calin Juravle60a794d2015-12-24 12:36:41 +0200798 for (size_t k = 0; k < profile_file_args.size(); k++) {
799 argv[i++] = profile_file_args[k].c_str();
800 argv[i++] = reference_profile_file_args[k].c_str();
801 }
Brian Carlstrome46a75a2014-06-27 16:03:06 -0700802 // Do not add after dex2oat_flags, they should override others for debugging.
Calin Juravle4fdff462014-06-06 16:58:43 +0100803 argv[i] = NULL;
804
neo.chae14e084d2015-01-07 18:46:13 +0900805 execv(DEX2OAT_BIN, (char * const *)argv);
Yevgeny Roubanb0d8d002014-09-08 17:02:10 +0700806 ALOGE("execv(%s) failed: %s\n", DEX2OAT_BIN, strerror(errno));
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700807}
808
Andreas Gampee1c01352014-12-10 16:41:11 -0800809/*
Andreas Gampec968c012015-07-16 15:55:41 -0700810 * Whether dexopt should use a swap file when compiling an APK.
811 *
812 * If kAlwaysProvideSwapFile, do this on all devices (dex2oat will make a more informed decision
813 * itself, anyways).
814 *
815 * Otherwise, read "dalvik.vm.dex2oat-swap". If the property exists, return whether it is "true".
816 *
817 * Otherwise, return true if this is a low-mem device.
818 *
819 * Otherwise, return default value.
Andreas Gampee1c01352014-12-10 16:41:11 -0800820 */
Andreas Gampec968c012015-07-16 15:55:41 -0700821static bool kAlwaysProvideSwapFile = false;
822static bool kDefaultProvideSwapFile = true;
Andreas Gampee1c01352014-12-10 16:41:11 -0800823
824static bool ShouldUseSwapFileForDexopt() {
825 if (kAlwaysProvideSwapFile) {
826 return true;
827 }
828
Andreas Gampec968c012015-07-16 15:55:41 -0700829 // Check the "override" property. If it exists, return value == "true".
Andreas Gampe02d0de52015-11-11 20:43:16 -0800830 char dex2oat_prop_buf[kPropertyValueMax];
831 if (get_property("dalvik.vm.dex2oat-swap", dex2oat_prop_buf, "") > 0) {
Andreas Gampec968c012015-07-16 15:55:41 -0700832 if (strcmp(dex2oat_prop_buf, "true") == 0) {
833 return true;
834 } else {
835 return false;
836 }
837 }
838
839 // Shortcut for default value. This is an implementation optimization for the process sketched
840 // above. If the default value is true, we can avoid to check whether this is a low-mem device,
841 // as low-mem is never returning false. The compiler will optimize this away if it can.
842 if (kDefaultProvideSwapFile) {
843 return true;
844 }
845
846 bool is_low_mem = check_boolean_property("ro.config.low_ram");
847 if (is_low_mem) {
848 return true;
849 }
850
851 // Default value must be false here.
852 return kDefaultProvideSwapFile;
Andreas Gampee1c01352014-12-10 16:41:11 -0800853}
854
Andreas Gampe94dd3d32015-09-14 16:33:11 -0700855static void SetDex2OatAndPatchOatScheduling(bool set_to_bg) {
856 if (set_to_bg) {
857 if (set_sched_policy(0, SP_BACKGROUND) < 0) {
858 ALOGE("set_sched_policy failed: %s\n", strerror(errno));
859 exit(70);
860 }
861 if (setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_BACKGROUND) < 0) {
862 ALOGE("setpriority failed: %s\n", strerror(errno));
863 exit(71);
864 }
865 }
866}
867
Calin Juravle60a794d2015-12-24 12:36:41 +0200868constexpr const char* PROFILE_FILE_EXTENSION = ".prof";
869constexpr const char* REFERENCE_PROFILE_FILE_EXTENSION = ".prof.ref";
870
871static void close_all_fds(const std::vector<int>& fds, const char* description) {
872 for (size_t i = 0; i < fds.size(); i++) {
873 if (close(fds[i]) != 0) {
874 PLOG(WARNING) << "Failed to close fd for " << description << " at index " << i;
875 }
876 }
877}
878
879static int open_code_cache_for_user(userid_t user, const char* volume_uuid, const char* pkgname) {
880 std::string code_cache_path =
881 create_data_user_package_path(volume_uuid, user, pkgname) + CODE_CACHE_DIR_POSTFIX;
882
883 struct stat buffer;
884 // Check that the code cache exists. If not, return and don't log an error.
885 if (TEMP_FAILURE_RETRY(lstat(code_cache_path.c_str(), &buffer)) == -1) {
886 if (errno != ENOENT) {
887 PLOG(ERROR) << "Failed to lstat code_cache: " << code_cache_path;
888 return -1;
889 }
890 }
891
892 int code_cache_fd = open(code_cache_path.c_str(),
893 O_PATH | O_CLOEXEC | O_DIRECTORY | O_NOFOLLOW);
894 if (code_cache_fd < 0) {
895 PLOG(ERROR) << "Failed to open code_cache: " << code_cache_path;
896 }
897 return code_cache_fd;
898}
899
900// Keep profile paths in sync with ActivityThread.
901static void open_profile_files_for_user(uid_t uid, const char* pkgname, int code_cache_fd,
902 /*out*/ int* profile_fd, /*out*/ int* reference_profile_fd) {
903 *profile_fd = -1;
904 *reference_profile_fd = -1;
905 std::string profile_file(pkgname);
906 profile_file += PROFILE_FILE_EXTENSION;
907
908 // Check if the profile exists. If not, early return and don't log an error.
909 struct stat buffer;
910 if (TEMP_FAILURE_RETRY(fstatat(
911 code_cache_fd, profile_file.c_str(), &buffer, AT_SYMLINK_NOFOLLOW)) == -1) {
912 if (errno != ENOENT) {
913 PLOG(ERROR) << "Failed to fstatat profile file: " << profile_file;
914 return;
915 }
916 }
917
918 // Open in read-write to allow transfer of information from the current profile
919 // to the reference profile.
920 *profile_fd = openat(code_cache_fd, profile_file.c_str(), O_RDWR | O_NOFOLLOW);
921 if (*profile_fd < 0) {
922 PLOG(ERROR) << "Failed to open profile file: " << profile_file;
923 return;
924 }
925
926 std::string reference_profile(pkgname);
927 reference_profile += REFERENCE_PROFILE_FILE_EXTENSION;
928 // Give read-write permissions just for the user (changed with fchown after opening).
929 // We need write permission because dex2oat will update the reference profile files
930 // with the content of the corresponding current profile files.
931 *reference_profile_fd = openat(code_cache_fd, reference_profile.c_str(),
932 O_CREAT | O_RDWR | O_NOFOLLOW, S_IWUSR | S_IRUSR);
933 if (*reference_profile_fd < 0) {
934 close(*profile_fd);
935 return;
936 }
937 if (fchown(*reference_profile_fd, uid, uid) < 0) {
938 PLOG(ERROR) << "Cannot change reference profile file owner: " << reference_profile;
939 close(*profile_fd);
940 *profile_fd = -1;
941 *reference_profile_fd = -1;
942 }
943}
944
945static void open_profile_files(const char* volume_uuid, uid_t uid, const char* pkgname,
946 std::vector<int>* profile_fds, std::vector<int>* reference_profile_fds) {
947 std::vector<userid_t> users = get_known_users(volume_uuid);
948 for (auto user : users) {
949 int code_cache_fd = open_code_cache_for_user(user, volume_uuid, pkgname);
950 if (code_cache_fd < 0) {
951 continue;
952 }
953 int profile_fd = -1;
954 int reference_profile_fd = -1;
955 open_profile_files_for_user(
956 uid, pkgname, code_cache_fd, &profile_fd, &reference_profile_fd);
957 close(code_cache_fd);
958
959 // Add to the lists only if both fds are valid.
960 if ((profile_fd >= 0) && (reference_profile_fd >= 0)) {
961 profile_fds->push_back(profile_fd);
962 reference_profile_fds->push_back(reference_profile_fd);
963 }
964 }
965}
966
967int dexopt(const char* apk_path, uid_t uid, const char* pkgname, const char* instruction_set,
968 int dexopt_needed, const char* oat_dir, int dexopt_flags, const char* volume_uuid,
969 bool use_profiles)
Mike Lockwood94afecf2012-10-24 10:45:23 -0700970{
971 struct utimbuf ut;
Fyodor Kupolov26ff93c2015-04-02 16:59:10 -0700972 struct stat input_stat;
Brian Carlstrom1705fc42013-03-21 18:20:22 -0700973 char out_path[PKG_PATH_MAX];
Andreas Gampee1c01352014-12-10 16:41:11 -0800974 char swap_file_name[PKG_PATH_MAX];
Alex Light7365a102014-07-21 12:23:48 -0700975 const char *input_file;
976 char in_odex_path[PKG_PATH_MAX];
Andreas Gampee1c01352014-12-10 16:41:11 -0800977 int res, input_fd=-1, out_fd=-1, swap_fd=-1;
Todd Kennedy76e767c2015-09-25 07:47:47 -0700978 bool is_public = (dexopt_flags & DEXOPT_PUBLIC) != 0;
979 bool vm_safe_mode = (dexopt_flags & DEXOPT_SAFEMODE) != 0;
980 bool debuggable = (dexopt_flags & DEXOPT_DEBUGGABLE) != 0;
981 bool boot_complete = (dexopt_flags & DEXOPT_BOOTCOMPLETE) != 0;
David Brazdilb0fad6d2015-12-30 11:16:04 +0000982 bool extract_only = (dexopt_flags & DEXOPT_EXTRACTONLY) != 0;
Calin Juravle60a794d2015-12-24 12:36:41 +0200983 std::vector<int> profile_files_fd;
984 std::vector<int> reference_profile_files_fd;
985 if (use_profiles) {
986 open_profile_files(volume_uuid, uid, pkgname,
987 &profile_files_fd, &reference_profile_files_fd);
988 if (profile_files_fd.empty()) {
989 // Skip profile guided compilation because no profiles were found.
990 return 0;
991 }
992 }
Todd Kennedy76e767c2015-09-25 07:47:47 -0700993
Todd Kennedye296e002015-11-16 14:41:36 -0800994 if ((dexopt_flags & ~DEXOPT_MASK) != 0) {
Todd Kennedy76e767c2015-09-25 07:47:47 -0700995 LOG_FATAL("dexopt flags contains unknown fields\n");
996 }
Mike Lockwood94afecf2012-10-24 10:45:23 -0700997
Andreas Gampee1c01352014-12-10 16:41:11 -0800998 // Early best-effort check whether we can fit the the path into our buffers.
999 // Note: the cache path will require an additional 5 bytes for ".swap", but we'll try to run
1000 // without a swap file, if necessary.
Mike Lockwood94afecf2012-10-24 10:45:23 -07001001 if (strlen(apk_path) >= (PKG_PATH_MAX - 8)) {
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001002 ALOGE("apk_path too long '%s'\n", apk_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001003 return -1;
1004 }
1005
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001006 if (oat_dir != NULL && oat_dir[0] != '!') {
1007 if (validate_apk_path(oat_dir)) {
1008 ALOGE("invalid oat_dir '%s'\n", oat_dir);
1009 return -1;
Chih-Wei Huang0e8ae162014-04-28 15:47:45 +08001010 }
Andreas Gampe02d0de52015-11-11 20:43:16 -08001011 if (!calculate_oat_file_path(out_path, oat_dir, apk_path, instruction_set)) {
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001012 return -1;
1013 }
1014 } else {
Andreas Gampe02d0de52015-11-11 20:43:16 -08001015 if (!create_cache_path(out_path, apk_path, instruction_set)) {
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001016 return -1;
1017 }
Mike Lockwood94afecf2012-10-24 10:45:23 -07001018 }
1019
Richard Uhlerc92fb622015-03-26 15:47:38 -07001020 switch (dexopt_needed) {
1021 case DEXOPT_DEX2OAT_NEEDED:
1022 input_file = apk_path;
1023 break;
1024
1025 case DEXOPT_PATCHOAT_NEEDED:
1026 if (!calculate_odex_file_path(in_odex_path, apk_path, instruction_set)) {
1027 return -1;
1028 }
1029 input_file = in_odex_path;
1030 break;
1031
1032 case DEXOPT_SELF_PATCHOAT_NEEDED:
1033 input_file = out_path;
1034 break;
1035
1036 default:
1037 ALOGE("Invalid dexopt needed: %d\n", dexopt_needed);
1038 exit(72);
Alex Light7365a102014-07-21 12:23:48 -07001039 }
Mike Lockwood94afecf2012-10-24 10:45:23 -07001040
Alex Light7365a102014-07-21 12:23:48 -07001041 memset(&input_stat, 0, sizeof(input_stat));
1042 stat(input_file, &input_stat);
1043
1044 input_fd = open(input_file, O_RDONLY, 0);
1045 if (input_fd < 0) {
1046 ALOGE("installd cannot open '%s' for input during dexopt\n", input_file);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001047 return -1;
1048 }
1049
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001050 unlink(out_path);
1051 out_fd = open(out_path, O_RDWR | O_CREAT | O_EXCL, 0644);
1052 if (out_fd < 0) {
1053 ALOGE("installd cannot open '%s' for output during dexopt\n", out_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001054 goto fail;
1055 }
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001056 if (fchmod(out_fd,
Mike Lockwood94afecf2012-10-24 10:45:23 -07001057 S_IRUSR|S_IWUSR|S_IRGRP |
1058 (is_public ? S_IROTH : 0)) < 0) {
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001059 ALOGE("installd cannot chmod '%s' during dexopt\n", out_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001060 goto fail;
1061 }
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001062 if (fchown(out_fd, AID_SYSTEM, uid) < 0) {
1063 ALOGE("installd cannot chown '%s' during dexopt\n", out_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001064 goto fail;
1065 }
1066
Andreas Gampee1c01352014-12-10 16:41:11 -08001067 // Create a swap file if necessary.
Richard Uhlerc92fb622015-03-26 15:47:38 -07001068 if (ShouldUseSwapFileForDexopt()) {
Andreas Gampee1c01352014-12-10 16:41:11 -08001069 // Make sure there really is enough space.
1070 size_t out_len = strlen(out_path);
1071 if (out_len + strlen(".swap") + 1 <= PKG_PATH_MAX) {
1072 strcpy(swap_file_name, out_path);
1073 strcpy(swap_file_name + strlen(out_path), ".swap");
1074 unlink(swap_file_name);
1075 swap_fd = open(swap_file_name, O_RDWR | O_CREAT | O_EXCL, 0600);
1076 if (swap_fd < 0) {
1077 // Could not create swap file. Optimistically go on and hope that we can compile
1078 // without it.
1079 ALOGE("installd could not create '%s' for swap during dexopt\n", swap_file_name);
1080 } else {
1081 // Immediately unlink. We don't really want to hit flash.
1082 unlink(swap_file_name);
1083 }
1084 } else {
1085 // Swap file path is too long. Try to run without.
1086 ALOGE("installd could not create swap file for path %s during dexopt\n", out_path);
1087 }
1088 }
Dave Allisond9370732014-01-30 14:19:23 -08001089
Alex Light7365a102014-07-21 12:23:48 -07001090 ALOGV("DexInv: --- BEGIN '%s' ---\n", input_file);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001091
1092 pid_t pid;
1093 pid = fork();
1094 if (pid == 0) {
1095 /* child -- drop privileges before continuing */
1096 if (setgid(uid) != 0) {
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001097 ALOGE("setgid(%d) failed in installd during dexopt\n", uid);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001098 exit(64);
1099 }
1100 if (setuid(uid) != 0) {
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001101 ALOGE("setuid(%d) failed in installd during dexopt\n", uid);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001102 exit(65);
1103 }
1104 // drop capabilities
1105 struct __user_cap_header_struct capheader;
1106 struct __user_cap_data_struct capdata[2];
1107 memset(&capheader, 0, sizeof(capheader));
1108 memset(&capdata, 0, sizeof(capdata));
1109 capheader.version = _LINUX_CAPABILITY_VERSION_3;
1110 if (capset(&capheader, &capdata[0]) < 0) {
1111 ALOGE("capset failed: %s\n", strerror(errno));
1112 exit(66);
1113 }
Andreas Gampe13f14192015-09-21 13:21:30 -07001114 SetDex2OatAndPatchOatScheduling(boot_complete);
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001115 if (flock(out_fd, LOCK_EX | LOCK_NB) != 0) {
1116 ALOGE("flock(%s) failed: %s\n", out_path, strerror(errno));
Mike Lockwood94afecf2012-10-24 10:45:23 -07001117 exit(67);
1118 }
1119
Richard Uhlerc92fb622015-03-26 15:47:38 -07001120 if (dexopt_needed == DEXOPT_PATCHOAT_NEEDED
1121 || dexopt_needed == DEXOPT_SELF_PATCHOAT_NEEDED) {
Andreas Gampebd872e42014-12-15 11:41:11 -08001122 run_patchoat(input_fd, out_fd, input_file, out_path, pkgname, instruction_set);
Richard Uhlerc92fb622015-03-26 15:47:38 -07001123 } else if (dexopt_needed == DEXOPT_DEX2OAT_NEEDED) {
Calin Juravle60a794d2015-12-24 12:36:41 +02001124 run_dex2oat(input_fd, out_fd, input_file, out_path, swap_fd,
David Brazdilb0fad6d2015-12-30 11:16:04 +00001125 instruction_set, vm_safe_mode, debuggable, boot_complete, extract_only,
Calin Juravle60a794d2015-12-24 12:36:41 +02001126 profile_files_fd, reference_profile_files_fd);
Richard Uhlerc92fb622015-03-26 15:47:38 -07001127 } else {
1128 ALOGE("Invalid dexopt needed: %d\n", dexopt_needed);
1129 exit(73);
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001130 }
Mike Lockwood94afecf2012-10-24 10:45:23 -07001131 exit(68); /* only get here on exec failure */
1132 } else {
MÃ¥rten Kongstad63568b12014-01-31 14:42:59 +01001133 res = wait_child(pid);
1134 if (res == 0) {
Alex Light7365a102014-07-21 12:23:48 -07001135 ALOGV("DexInv: --- END '%s' (success) ---\n", input_file);
MÃ¥rten Kongstad63568b12014-01-31 14:42:59 +01001136 } else {
Alex Light7365a102014-07-21 12:23:48 -07001137 ALOGE("DexInv: --- END '%s' --- status=0x%04x, process failed\n", input_file, res);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001138 goto fail;
1139 }
1140 }
1141
Alex Light7365a102014-07-21 12:23:48 -07001142 ut.actime = input_stat.st_atime;
1143 ut.modtime = input_stat.st_mtime;
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001144 utime(out_path, &ut);
1145
1146 close(out_fd);
Alex Light7365a102014-07-21 12:23:48 -07001147 close(input_fd);
Andreas Gampee1c01352014-12-10 16:41:11 -08001148 if (swap_fd != -1) {
1149 close(swap_fd);
1150 }
Calin Juravle60a794d2015-12-24 12:36:41 +02001151 if (use_profiles != 0) {
1152 close_all_fds(profile_files_fd, "profile_files_fd");
1153 close_all_fds(reference_profile_files_fd, "reference_profile_files_fd");
1154 }
Mike Lockwood94afecf2012-10-24 10:45:23 -07001155 return 0;
1156
1157fail:
Brian Carlstrom1705fc42013-03-21 18:20:22 -07001158 if (out_fd >= 0) {
1159 close(out_fd);
1160 unlink(out_path);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001161 }
Alex Light7365a102014-07-21 12:23:48 -07001162 if (input_fd >= 0) {
1163 close(input_fd);
Mike Lockwood94afecf2012-10-24 10:45:23 -07001164 }
Calin Juravle60a794d2015-12-24 12:36:41 +02001165 if (use_profiles != 0) {
1166 close_all_fds(profile_files_fd, "profile_files_fd");
1167 close_all_fds(reference_profile_files_fd, "reference_profile_files_fd");
1168 }
Mike Lockwood94afecf2012-10-24 10:45:23 -07001169 return -1;
1170}
1171
Narayan Kamath091ea772014-11-10 15:03:46 +00001172int mark_boot_complete(const char* instruction_set)
1173{
1174 char boot_marker_path[PKG_PATH_MAX];
Andreas Gampe02d0de52015-11-11 20:43:16 -08001175 sprintf(boot_marker_path,
1176 "%s/%s/%s/.booting",
1177 android_data_dir.path,
1178 DALVIK_CACHE,
1179 instruction_set);
Narayan Kamath091ea772014-11-10 15:03:46 +00001180
1181 ALOGV("mark_boot_complete : %s", boot_marker_path);
1182 if (unlink(boot_marker_path) != 0) {
1183 ALOGE("Unable to unlink boot marker at %s, error=%s", boot_marker_path,
1184 strerror(errno));
1185 return -1;
1186 }
1187
1188 return 0;
1189}
1190
Mike Lockwood94afecf2012-10-24 10:45:23 -07001191void mkinnerdirs(char* path, int basepos, mode_t mode, int uid, int gid,
1192 struct stat* statbuf)
1193{
1194 while (path[basepos] != 0) {
1195 if (path[basepos] == '/') {
1196 path[basepos] = 0;
1197 if (lstat(path, statbuf) < 0) {
1198 ALOGV("Making directory: %s\n", path);
1199 if (mkdir(path, mode) == 0) {
1200 chown(path, uid, gid);
1201 } else {
1202 ALOGW("Unable to make directory %s: %s\n", path, strerror(errno));
1203 }
1204 }
1205 path[basepos] = '/';
1206 basepos++;
1207 }
1208 basepos++;
1209 }
1210}
1211
1212int movefileordir(char* srcpath, char* dstpath, int dstbasepos,
1213 int dstuid, int dstgid, struct stat* statbuf)
1214{
1215 DIR *d;
1216 struct dirent *de;
1217 int res;
1218
1219 int srcend = strlen(srcpath);
1220 int dstend = strlen(dstpath);
Dave Allisond9370732014-01-30 14:19:23 -08001221
Mike Lockwood94afecf2012-10-24 10:45:23 -07001222 if (lstat(srcpath, statbuf) < 0) {
1223 ALOGW("Unable to stat %s: %s\n", srcpath, strerror(errno));
1224 return 1;
1225 }
Dave Allisond9370732014-01-30 14:19:23 -08001226
Mike Lockwood94afecf2012-10-24 10:45:23 -07001227 if ((statbuf->st_mode&S_IFDIR) == 0) {
1228 mkinnerdirs(dstpath, dstbasepos, S_IRWXU|S_IRWXG|S_IXOTH,
1229 dstuid, dstgid, statbuf);
1230 ALOGV("Renaming %s to %s (uid %d)\n", srcpath, dstpath, dstuid);
1231 if (rename(srcpath, dstpath) >= 0) {
1232 if (chown(dstpath, dstuid, dstgid) < 0) {
1233 ALOGE("cannot chown %s: %s\n", dstpath, strerror(errno));
1234 unlink(dstpath);
1235 return 1;
1236 }
1237 } else {
1238 ALOGW("Unable to rename %s to %s: %s\n",
1239 srcpath, dstpath, strerror(errno));
1240 return 1;
1241 }
1242 return 0;
1243 }
1244
1245 d = opendir(srcpath);
1246 if (d == NULL) {
1247 ALOGW("Unable to opendir %s: %s\n", srcpath, strerror(errno));
1248 return 1;
1249 }
1250
1251 res = 0;
Dave Allisond9370732014-01-30 14:19:23 -08001252
Mike Lockwood94afecf2012-10-24 10:45:23 -07001253 while ((de = readdir(d))) {
1254 const char *name = de->d_name;
1255 /* always skip "." and ".." */
1256 if (name[0] == '.') {
1257 if (name[1] == 0) continue;
1258 if ((name[1] == '.') && (name[2] == 0)) continue;
1259 }
Dave Allisond9370732014-01-30 14:19:23 -08001260
Mike Lockwood94afecf2012-10-24 10:45:23 -07001261 if ((srcend+strlen(name)) >= (PKG_PATH_MAX-2)) {
1262 ALOGW("Source path too long; skipping: %s/%s\n", srcpath, name);
1263 continue;
1264 }
Dave Allisond9370732014-01-30 14:19:23 -08001265
Mike Lockwood94afecf2012-10-24 10:45:23 -07001266 if ((dstend+strlen(name)) >= (PKG_PATH_MAX-2)) {
1267 ALOGW("Destination path too long; skipping: %s/%s\n", dstpath, name);
1268 continue;
1269 }
Dave Allisond9370732014-01-30 14:19:23 -08001270
Mike Lockwood94afecf2012-10-24 10:45:23 -07001271 srcpath[srcend] = dstpath[dstend] = '/';
1272 strcpy(srcpath+srcend+1, name);
1273 strcpy(dstpath+dstend+1, name);
Dave Allisond9370732014-01-30 14:19:23 -08001274
Mike Lockwood94afecf2012-10-24 10:45:23 -07001275 if (movefileordir(srcpath, dstpath, dstbasepos, dstuid, dstgid, statbuf) != 0) {
1276 res = 1;
1277 }
Dave Allisond9370732014-01-30 14:19:23 -08001278
Mike Lockwood94afecf2012-10-24 10:45:23 -07001279 // Note: we will be leaving empty directories behind in srcpath,
1280 // but that is okay, the package manager will be erasing all of the
1281 // data associated with .apks that disappear.
Dave Allisond9370732014-01-30 14:19:23 -08001282
Mike Lockwood94afecf2012-10-24 10:45:23 -07001283 srcpath[srcend] = dstpath[dstend] = 0;
1284 }
Dave Allisond9370732014-01-30 14:19:23 -08001285
Mike Lockwood94afecf2012-10-24 10:45:23 -07001286 closedir(d);
1287 return res;
1288}
1289
1290int movefiles()
1291{
1292 DIR *d;
1293 int dfd, subfd;
1294 struct dirent *de;
1295 struct stat s;
1296 char buf[PKG_PATH_MAX+1];
1297 int bufp, bufe, bufi, readlen;
1298
1299 char srcpkg[PKG_NAME_MAX];
1300 char dstpkg[PKG_NAME_MAX];
1301 char srcpath[PKG_PATH_MAX];
1302 char dstpath[PKG_PATH_MAX];
1303 int dstuid=-1, dstgid=-1;
1304 int hasspace;
1305
1306 d = opendir(UPDATE_COMMANDS_DIR_PREFIX);
1307 if (d == NULL) {
1308 goto done;
1309 }
1310 dfd = dirfd(d);
1311
1312 /* Iterate through all files in the directory, executing the
1313 * file movements requested there-in.
1314 */
1315 while ((de = readdir(d))) {
1316 const char *name = de->d_name;
1317
1318 if (de->d_type == DT_DIR) {
1319 continue;
1320 } else {
1321 subfd = openat(dfd, name, O_RDONLY);
1322 if (subfd < 0) {
1323 ALOGW("Unable to open update commands at %s%s\n",
1324 UPDATE_COMMANDS_DIR_PREFIX, name);
1325 continue;
1326 }
Dave Allisond9370732014-01-30 14:19:23 -08001327
Mike Lockwood94afecf2012-10-24 10:45:23 -07001328 bufp = 0;
1329 bufe = 0;
1330 buf[PKG_PATH_MAX] = 0;
1331 srcpkg[0] = dstpkg[0] = 0;
1332 while (1) {
1333 bufi = bufp;
1334 while (bufi < bufe && buf[bufi] != '\n') {
1335 bufi++;
1336 }
1337 if (bufi < bufe) {
1338 buf[bufi] = 0;
1339 ALOGV("Processing line: %s\n", buf+bufp);
1340 hasspace = 0;
1341 while (bufp < bufi && isspace(buf[bufp])) {
1342 hasspace = 1;
1343 bufp++;
1344 }
1345 if (buf[bufp] == '#' || bufp == bufi) {
1346 // skip comments and empty lines.
1347 } else if (hasspace) {
1348 if (dstpkg[0] == 0) {
1349 ALOGW("Path before package line in %s%s: %s\n",
1350 UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
1351 } else if (srcpkg[0] == 0) {
1352 // Skip -- source package no longer exists.
1353 } else {
1354 ALOGV("Move file: %s (from %s to %s)\n", buf+bufp, srcpkg, dstpkg);
1355 if (!create_move_path(srcpath, srcpkg, buf+bufp, 0) &&
1356 !create_move_path(dstpath, dstpkg, buf+bufp, 0)) {
1357 movefileordir(srcpath, dstpath,
1358 strlen(dstpath)-strlen(buf+bufp),
1359 dstuid, dstgid, &s);
1360 }
1361 }
1362 } else {
1363 char* div = strchr(buf+bufp, ':');
1364 if (div == NULL) {
1365 ALOGW("Bad package spec in %s%s; no ':' sep: %s\n",
1366 UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
1367 } else {
1368 *div = 0;
1369 div++;
1370 if (strlen(buf+bufp) < PKG_NAME_MAX) {
1371 strcpy(dstpkg, buf+bufp);
1372 } else {
1373 srcpkg[0] = dstpkg[0] = 0;
1374 ALOGW("Package name too long in %s%s: %s\n",
1375 UPDATE_COMMANDS_DIR_PREFIX, name, buf+bufp);
1376 }
1377 if (strlen(div) < PKG_NAME_MAX) {
1378 strcpy(srcpkg, div);
1379 } else {
1380 srcpkg[0] = dstpkg[0] = 0;
1381 ALOGW("Package name too long in %s%s: %s\n",
1382 UPDATE_COMMANDS_DIR_PREFIX, name, div);
1383 }
1384 if (srcpkg[0] != 0) {
1385 if (!create_pkg_path(srcpath, srcpkg, PKG_DIR_POSTFIX, 0)) {
1386 if (lstat(srcpath, &s) < 0) {
1387 // Package no longer exists -- skip.
1388 srcpkg[0] = 0;
1389 }
1390 } else {
1391 srcpkg[0] = 0;
1392 ALOGW("Can't create path %s in %s%s\n",
1393 div, UPDATE_COMMANDS_DIR_PREFIX, name);
1394 }
1395 if (srcpkg[0] != 0) {
1396 if (!create_pkg_path(dstpath, dstpkg, PKG_DIR_POSTFIX, 0)) {
1397 if (lstat(dstpath, &s) == 0) {
1398 dstuid = s.st_uid;
1399 dstgid = s.st_gid;
1400 } else {
1401 // Destination package doesn't
1402 // exist... due to original-package,
1403 // this is normal, so don't be
1404 // noisy about it.
1405 srcpkg[0] = 0;
1406 }
1407 } else {
1408 srcpkg[0] = 0;
1409 ALOGW("Can't create path %s in %s%s\n",
1410 div, UPDATE_COMMANDS_DIR_PREFIX, name);
1411 }
1412 }
1413 ALOGV("Transfering from %s to %s: uid=%d\n",
1414 srcpkg, dstpkg, dstuid);
1415 }
1416 }
1417 }
1418 bufp = bufi+1;
1419 } else {
1420 if (bufp == 0) {
1421 if (bufp < bufe) {
1422 ALOGW("Line too long in %s%s, skipping: %s\n",
1423 UPDATE_COMMANDS_DIR_PREFIX, name, buf);
1424 }
1425 } else if (bufp < bufe) {
1426 memcpy(buf, buf+bufp, bufe-bufp);
1427 bufe -= bufp;
1428 bufp = 0;
1429 }
1430 readlen = read(subfd, buf+bufe, PKG_PATH_MAX-bufe);
1431 if (readlen < 0) {
1432 ALOGW("Failure reading update commands in %s%s: %s\n",
1433 UPDATE_COMMANDS_DIR_PREFIX, name, strerror(errno));
1434 break;
1435 } else if (readlen == 0) {
1436 break;
1437 }
1438 bufe += readlen;
1439 buf[bufe] = 0;
1440 ALOGV("Read buf: %s\n", buf);
1441 }
1442 }
1443 close(subfd);
1444 }
1445 }
1446 closedir(d);
1447done:
1448 return 0;
1449}
1450
Jeff Sharkeyc03de092015-04-07 18:14:05 -07001451int linklib(const char* uuid, const char* pkgname, const char* asecLibDir, int userId)
Mike Lockwood94afecf2012-10-24 10:45:23 -07001452{
Mike Lockwood94afecf2012-10-24 10:45:23 -07001453 struct stat s, libStat;
1454 int rc = 0;
1455
Jeff Sharkeyd7921182015-04-30 15:58:19 -07001456 std::string _pkgdir(create_data_user_package_path(uuid, userId, pkgname));
Jeff Sharkeyc03de092015-04-07 18:14:05 -07001457 std::string _libsymlink(_pkgdir + PKG_LIB_POSTFIX);
1458
1459 const char* pkgdir = _pkgdir.c_str();
1460 const char* libsymlink = _libsymlink.c_str();
Mike Lockwood94afecf2012-10-24 10:45:23 -07001461
1462 if (stat(pkgdir, &s) < 0) return -1;
1463
1464 if (chown(pkgdir, AID_INSTALL, AID_INSTALL) < 0) {
1465 ALOGE("failed to chown '%s': %s\n", pkgdir, strerror(errno));
1466 return -1;
1467 }
1468
1469 if (chmod(pkgdir, 0700) < 0) {
1470 ALOGE("linklib() 1: failed to chmod '%s': %s\n", pkgdir, strerror(errno));
1471 rc = -1;
1472 goto out;
1473 }
1474
1475 if (lstat(libsymlink, &libStat) < 0) {
1476 if (errno != ENOENT) {
1477 ALOGE("couldn't stat lib dir: %s\n", strerror(errno));
1478 rc = -1;
1479 goto out;
1480 }
1481 } else {
1482 if (S_ISDIR(libStat.st_mode)) {
Narayan Kamath3aee2c52014-06-10 13:16:47 +01001483 if (delete_dir_contents(libsymlink, 1, NULL) < 0) {
Mike Lockwood94afecf2012-10-24 10:45:23 -07001484 rc = -1;
1485 goto out;
1486 }
1487 } else if (S_ISLNK(libStat.st_mode)) {
1488 if (unlink(libsymlink) < 0) {
1489 ALOGE("couldn't unlink lib dir: %s\n", strerror(errno));
1490 rc = -1;
1491 goto out;
1492 }
1493 }
1494 }
1495
1496 if (symlink(asecLibDir, libsymlink) < 0) {
1497 ALOGE("couldn't symlink directory '%s' -> '%s': %s\n", libsymlink, asecLibDir,
1498 strerror(errno));
1499 rc = -errno;
1500 goto out;
1501 }
1502
1503out:
1504 if (chmod(pkgdir, s.st_mode) < 0) {
1505 ALOGE("linklib() 2: failed to chmod '%s': %s\n", pkgdir, strerror(errno));
1506 rc = -errno;
1507 }
1508
1509 if (chown(pkgdir, s.st_uid, s.st_gid) < 0) {
1510 ALOGE("failed to chown '%s' : %s\n", pkgdir, strerror(errno));
1511 return -errno;
1512 }
1513
1514 return rc;
1515}
MÃ¥rten Kongstad63568b12014-01-31 14:42:59 +01001516
1517static void run_idmap(const char *target_apk, const char *overlay_apk, int idmap_fd)
1518{
1519 static const char *IDMAP_BIN = "/system/bin/idmap";
1520 static const size_t MAX_INT_LEN = 32;
1521 char idmap_str[MAX_INT_LEN];
1522
1523 snprintf(idmap_str, sizeof(idmap_str), "%d", idmap_fd);
1524
1525 execl(IDMAP_BIN, IDMAP_BIN, "--fd", target_apk, overlay_apk, idmap_str, (char*)NULL);
1526 ALOGE("execl(%s) failed: %s\n", IDMAP_BIN, strerror(errno));
1527}
1528
1529// Transform string /a/b/c.apk to (prefix)/a@b@c.apk@(suffix)
1530// eg /a/b/c.apk to /data/resource-cache/a@b@c.apk@idmap
1531static int flatten_path(const char *prefix, const char *suffix,
1532 const char *overlay_path, char *idmap_path, size_t N)
1533{
1534 if (overlay_path == NULL || idmap_path == NULL) {
1535 return -1;
1536 }
1537 const size_t len_overlay_path = strlen(overlay_path);
1538 // will access overlay_path + 1 further below; requires absolute path
1539 if (len_overlay_path < 2 || *overlay_path != '/') {
1540 return -1;
1541 }
1542 const size_t len_idmap_root = strlen(prefix);
1543 const size_t len_suffix = strlen(suffix);
1544 if (SIZE_MAX - len_idmap_root < len_overlay_path ||
1545 SIZE_MAX - (len_idmap_root + len_overlay_path) < len_suffix) {
1546 // additions below would cause overflow
1547 return -1;
1548 }
1549 if (N < len_idmap_root + len_overlay_path + len_suffix) {
1550 return -1;
1551 }
1552 memset(idmap_path, 0, N);
1553 snprintf(idmap_path, N, "%s%s%s", prefix, overlay_path + 1, suffix);
1554 char *ch = idmap_path + len_idmap_root;
1555 while (*ch != '\0') {
1556 if (*ch == '/') {
1557 *ch = '@';
1558 }
1559 ++ch;
1560 }
1561 return 0;
1562}
1563
1564int idmap(const char *target_apk, const char *overlay_apk, uid_t uid)
1565{
1566 ALOGV("idmap target_apk=%s overlay_apk=%s uid=%d\n", target_apk, overlay_apk, uid);
1567
1568 int idmap_fd = -1;
1569 char idmap_path[PATH_MAX];
1570
1571 if (flatten_path(IDMAP_PREFIX, IDMAP_SUFFIX, overlay_apk,
1572 idmap_path, sizeof(idmap_path)) == -1) {
1573 ALOGE("idmap cannot generate idmap path for overlay %s\n", overlay_apk);
1574 goto fail;
1575 }
1576
1577 unlink(idmap_path);
1578 idmap_fd = open(idmap_path, O_RDWR | O_CREAT | O_EXCL, 0644);
1579 if (idmap_fd < 0) {
1580 ALOGE("idmap cannot open '%s' for output: %s\n", idmap_path, strerror(errno));
1581 goto fail;
1582 }
1583 if (fchown(idmap_fd, AID_SYSTEM, uid) < 0) {
1584 ALOGE("idmap cannot chown '%s'\n", idmap_path);
1585 goto fail;
1586 }
1587 if (fchmod(idmap_fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) {
1588 ALOGE("idmap cannot chmod '%s'\n", idmap_path);
1589 goto fail;
1590 }
1591
1592 pid_t pid;
1593 pid = fork();
1594 if (pid == 0) {
1595 /* child -- drop privileges before continuing */
1596 if (setgid(uid) != 0) {
1597 ALOGE("setgid(%d) failed during idmap\n", uid);
1598 exit(1);
1599 }
1600 if (setuid(uid) != 0) {
1601 ALOGE("setuid(%d) failed during idmap\n", uid);
1602 exit(1);
1603 }
1604 if (flock(idmap_fd, LOCK_EX | LOCK_NB) != 0) {
1605 ALOGE("flock(%s) failed during idmap: %s\n", idmap_path, strerror(errno));
1606 exit(1);
1607 }
1608
1609 run_idmap(target_apk, overlay_apk, idmap_fd);
1610 exit(1); /* only if exec call to idmap failed */
1611 } else {
1612 int status = wait_child(pid);
1613 if (status != 0) {
1614 ALOGE("idmap failed, status=0x%04x\n", status);
1615 goto fail;
1616 }
1617 }
1618
1619 close(idmap_fd);
1620 return 0;
1621fail:
1622 if (idmap_fd >= 0) {
1623 close(idmap_fd);
1624 unlink(idmap_path);
1625 }
1626 return -1;
1627}
Robert Craige9887e42014-02-20 10:25:56 -05001628
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -07001629int restorecon_app_data(const char* uuid, const char* pkgName, userid_t userid, int flags,
1630 appid_t appid, const char* seinfo) {
Jeff Sharkeyebf728f2015-11-18 14:15:17 -07001631 int res = 0;
Robert Craige9887e42014-02-20 10:25:56 -05001632
Robert Craigda30dc72014-03-27 10:21:12 -04001633 // SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here.
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -07001634 unsigned int seflags = SELINUX_ANDROID_RESTORECON_RECURSE;
Robert Craigda30dc72014-03-27 10:21:12 -04001635
1636 if (!pkgName || !seinfo) {
1637 ALOGE("Package name or seinfo tag is null when trying to restorecon.");
Robert Craige9887e42014-02-20 10:25:56 -05001638 return -1;
1639 }
1640
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -07001641 uid_t uid = multiuser_get_uid(userid, appid);
1642 if (flags & FLAG_CE_STORAGE) {
1643 auto path = create_data_user_package_path(uuid, userid, pkgName);
1644 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
1645 PLOG(ERROR) << "restorecon failed for " << path;
Jeff Sharkeyebf728f2015-11-18 14:15:17 -07001646 res = -1;
1647 }
Jeff Sharkeyc7d1b222016-01-11 13:07:09 -07001648 }
1649 if (flags & FLAG_DE_STORAGE) {
1650 auto path = create_data_user_de_package_path(uuid, userid, pkgName);
1651 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
1652 PLOG(ERROR) << "restorecon failed for " << path;
Jeff Sharkeyea0e4b12015-11-19 15:35:27 -07001653 // TODO: include result once 25796509 is fixed
Jeff Sharkey41ea4242015-04-09 11:34:03 -07001654 }
Robert Craige9887e42014-02-20 10:25:56 -05001655 }
1656
Jeff Sharkeyebf728f2015-11-18 14:15:17 -07001657 return res;
Robert Craige9887e42014-02-20 10:25:56 -05001658}
Narayan Kamath3aee2c52014-06-10 13:16:47 +01001659
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001660int create_oat_dir(const char* oat_dir, const char* instruction_set)
1661{
1662 char oat_instr_dir[PKG_PATH_MAX];
1663
1664 if (validate_apk_path(oat_dir)) {
1665 ALOGE("invalid apk path '%s' (bad prefix)\n", oat_dir);
1666 return -1;
1667 }
Fyodor Kupolov8eed7e62015-04-06 19:09:02 -07001668 if (fs_prepare_dir(oat_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001669 return -1;
1670 }
1671 if (selinux_android_restorecon(oat_dir, 0)) {
1672 ALOGE("cannot restorecon dir '%s': %s\n", oat_dir, strerror(errno));
1673 return -1;
1674 }
1675 snprintf(oat_instr_dir, PKG_PATH_MAX, "%s/%s", oat_dir, instruction_set);
Fyodor Kupolov8eed7e62015-04-06 19:09:02 -07001676 if (fs_prepare_dir(oat_instr_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
Fyodor Kupolov88ce4ff2015-03-03 12:25:29 -08001677 return -1;
1678 }
1679 return 0;
1680}
1681
1682int rm_package_dir(const char* apk_path)
1683{
1684 if (validate_apk_path(apk_path)) {
1685 ALOGE("invalid apk path '%s' (bad prefix)\n", apk_path);
1686 return -1;
1687 }
1688 return delete_dir_contents(apk_path, 1 /* also_delete_dir */ , NULL /* exclusion_predicate */);
1689}
1690
Narayan Kamathd845c962015-06-04 13:20:27 +01001691int link_file(const char* relative_path, const char* from_base, const char* to_base) {
1692 char from_path[PKG_PATH_MAX];
1693 char to_path[PKG_PATH_MAX];
1694 snprintf(from_path, PKG_PATH_MAX, "%s/%s", from_base, relative_path);
1695 snprintf(to_path, PKG_PATH_MAX, "%s/%s", to_base, relative_path);
1696
1697 if (validate_apk_path_subdirs(from_path)) {
1698 ALOGE("invalid app data sub-path '%s' (bad prefix)\n", from_path);
1699 return -1;
1700 }
1701
1702 if (validate_apk_path_subdirs(to_path)) {
1703 ALOGE("invalid app data sub-path '%s' (bad prefix)\n", to_path);
1704 return -1;
1705 }
1706
1707 const int ret = link(from_path, to_path);
1708 if (ret < 0) {
1709 ALOGE("link(%s, %s) failed : %s", from_path, to_path, strerror(errno));
1710 return -1;
1711 }
1712
1713 return 0;
1714}
1715
Andreas Gampe02d0de52015-11-11 20:43:16 -08001716} // namespace installd
1717} // namespace android