2 ** Copyright 2008, The Android Open Source Project
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
8 ** http://www.apache.org/licenses/LICENSE-2.0
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.
17 #include "InstalldNativeService.h"
19 #define ATRACE_TAG ATRACE_TAG_PACKAGE_MANAGER
28 #include <sys/capability.h>
30 #include <sys/resource.h>
31 #include <sys/quota.h>
33 #include <sys/statvfs.h>
34 #include <sys/types.h>
36 #include <sys/xattr.h>
39 #include <android-base/logging.h>
40 #include <android-base/stringprintf.h>
41 #include <android-base/strings.h>
42 #include <android-base/unique_fd.h>
43 #include <cutils/fs.h>
44 #include <cutils/properties.h>
45 #include <cutils/sched_policy.h>
46 #include <log/log.h> // TODO: Move everything to base/logging.
47 #include <logwrap/logwrap.h>
48 #include <private/android_filesystem_config.h>
49 #include <selinux/android.h>
50 #include <system/thread_defs.h>
51 #include <utils/Trace.h>
55 #include "installd_deps.h"
56 #include "otapreopt_utils.h"
59 #include "CacheTracker.h"
60 #include "MatchExtensionGen.h"
63 #define LOG_TAG "installd"
66 using android::base::StringPrintf;
72 static constexpr const char* kCpPath = "/system/bin/cp";
73 static constexpr const char* kXattrDefault = "user.default";
75 static constexpr const int MIN_RESTRICTED_HOME_SDK_VERSION = 24; // > M
77 static constexpr const char* PKG_LIB_POSTFIX = "/lib";
78 static constexpr const char* CACHE_DIR_POSTFIX = "/cache";
79 static constexpr const char* CODE_CACHE_DIR_POSTFIX = "/code_cache";
81 static constexpr const char *kIdMapPath = "/system/bin/idmap";
82 static constexpr const char* IDMAP_PREFIX = "/data/resource-cache/";
83 static constexpr const char* IDMAP_SUFFIX = "@idmap";
85 // NOTE: keep in sync with Installer
86 static constexpr int FLAG_CLEAR_CACHE_ONLY = 1 << 8;
87 static constexpr int FLAG_CLEAR_CODE_CACHE_ONLY = 1 << 9;
88 static constexpr int FLAG_USE_QUOTA = 1 << 12;
89 static constexpr int FLAG_FREE_CACHE_V2 = 1 << 13;
90 static constexpr int FLAG_FREE_CACHE_V2_DEFY_QUOTA = 1 << 14;
91 static constexpr int FLAG_FREE_CACHE_NOOP = 1 << 15;
92 static constexpr int FLAG_FORCE = 1 << 16;
96 constexpr const char* kDump = "android.permission.DUMP";
98 static binder::Status ok() {
99 return binder::Status::ok();
102 static binder::Status exception(uint32_t code, const std::string& msg) {
103 return binder::Status::fromExceptionCode(code, String8(msg.c_str()));
106 static binder::Status error() {
107 return binder::Status::fromServiceSpecificError(errno);
110 static binder::Status error(const std::string& msg) {
112 return binder::Status::fromServiceSpecificError(errno, String8(msg.c_str()));
115 static binder::Status error(uint32_t code, const std::string& msg) {
116 LOG(ERROR) << msg << " (" << code << ")";
117 return binder::Status::fromServiceSpecificError(code, String8(msg.c_str()));
120 binder::Status checkPermission(const char* permission) {
124 if (checkCallingPermission(String16(permission), reinterpret_cast<int32_t*>(&pid),
125 reinterpret_cast<int32_t*>(&uid))) {
128 return exception(binder::Status::EX_SECURITY,
129 StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, permission));
133 binder::Status checkUid(uid_t expectedUid) {
134 uid_t uid = IPCThreadState::self()->getCallingUid();
135 if (uid == expectedUid || uid == AID_ROOT) {
138 return exception(binder::Status::EX_SECURITY,
139 StringPrintf("UID %d is not expected UID %d", uid, expectedUid));
143 binder::Status checkArgumentUuid(const std::unique_ptr<std::string>& uuid) {
144 if (!uuid || is_valid_filename(*uuid)) {
147 return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
148 StringPrintf("UUID %s is malformed", uuid->c_str()));
152 binder::Status checkArgumentPackageName(const std::string& packageName) {
153 if (is_valid_package_name(packageName.c_str())) {
156 return exception(binder::Status::EX_ILLEGAL_ARGUMENT,
157 StringPrintf("Package name %s is malformed", packageName.c_str()));
161 #define ENFORCE_UID(uid) { \
162 binder::Status status = checkUid((uid)); \
163 if (!status.isOk()) { \
168 #define CHECK_ARGUMENT_UUID(uuid) { \
169 binder::Status status = checkArgumentUuid((uuid)); \
170 if (!status.isOk()) { \
175 #define CHECK_ARGUMENT_PACKAGE_NAME(packageName) { \
176 binder::Status status = \
177 checkArgumentPackageName((packageName)); \
178 if (!status.isOk()) { \
185 status_t InstalldNativeService::start() {
186 IPCThreadState::self()->disableBackgroundScheduling(true);
187 status_t ret = BinderService<InstalldNativeService>::publish();
188 if (ret != android::OK) {
191 sp<ProcessState> ps(ProcessState::self());
192 ps->startThreadPool();
193 ps->giveThreadPoolName();
197 status_t InstalldNativeService::dump(int fd, const Vector<String16> & /* args */) {
198 auto out = std::fstream(StringPrintf("/proc/self/fd/%d", fd));
199 const binder::Status dump_permission = checkPermission(kDump);
200 if (!dump_permission.isOk()) {
201 out << dump_permission.toString8() << endl;
202 return PERMISSION_DENIED;
204 std::lock_guard<std::recursive_mutex> lock(mLock);
206 out << "installd is happy!" << endl;
209 std::lock_guard<std::recursive_mutex> lock(mMountsLock);
210 out << endl << "Storage mounts:" << endl;
211 for (const auto& n : mStorageMounts) {
212 out << " " << n.first << " = " << n.second << endl;
215 out << endl << "Quota reverse mounts:" << endl;
216 for (const auto& n : mQuotaReverseMounts) {
217 out << " " << n.first << " = " << n.second << endl;
222 std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
223 out << endl << "Per-UID cache quotas:" << endl;
224 for (const auto& n : mCacheQuotas) {
225 out << " " << n.first << " = " << n.second << endl;
236 * Perform restorecon of the given path, but only perform recursive restorecon
237 * if the label of that top-level file actually changed. This can save us
238 * significant time by avoiding no-op traversals of large filesystem trees.
240 static int restorecon_app_data_lazy(const std::string& path, const std::string& seInfo, uid_t uid,
243 char* before = nullptr;
244 char* after = nullptr;
246 // Note that SELINUX_ANDROID_RESTORECON_DATADATA flag is set by
247 // libselinux. Not needed here.
249 if (lgetfilecon(path.c_str(), &before) < 0) {
250 PLOG(ERROR) << "Failed before getfilecon for " << path;
253 if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 0) < 0) {
254 PLOG(ERROR) << "Failed top-level restorecon for " << path;
257 if (lgetfilecon(path.c_str(), &after) < 0) {
258 PLOG(ERROR) << "Failed after getfilecon for " << path;
262 // If the initial top-level restorecon above changed the label, then go
263 // back and restorecon everything recursively
264 if (strcmp(before, after)) {
266 LOG(DEBUG) << "Detected label change from " << before << " to " << after << " at "
267 << path << "; running recursive restorecon";
269 if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid,
270 SELINUX_ANDROID_RESTORECON_RECURSE) < 0) {
271 PLOG(ERROR) << "Failed recursive restorecon for " << path;
285 static int restorecon_app_data_lazy(const std::string& parent, const char* name,
286 const std::string& seInfo, uid_t uid, bool existing) {
287 return restorecon_app_data_lazy(StringPrintf("%s/%s", parent.c_str(), name), seInfo, uid,
291 static int prepare_app_dir(const std::string& path, mode_t target_mode, uid_t uid) {
292 if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, uid) != 0) {
293 PLOG(ERROR) << "Failed to prepare " << path;
300 * Ensure that we have a hard-limit quota to protect against abusive apps;
301 * they should never use more than 90% of blocks or 50% of inodes.
303 static int prepare_app_quota(const std::unique_ptr<std::string>& uuid, const std::string& device,
305 if (device.empty()) return 0;
308 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid,
309 reinterpret_cast<char*>(&dq)) != 0) {
310 PLOG(WARNING) << "Failed to find quota for " << uid;
314 if ((dq.dqb_bhardlimit == 0) || (dq.dqb_ihardlimit == 0)) {
315 auto path = create_data_path(uuid ? uuid->c_str() : nullptr);
317 if (statvfs(path.c_str(), &stat) != 0) {
318 PLOG(WARNING) << "Failed to statvfs " << path;
322 dq.dqb_valid = QIF_LIMITS;
323 dq.dqb_bhardlimit = (((stat.f_blocks * stat.f_frsize) / 10) * 9) / QIF_DQBLKSIZE;
324 dq.dqb_ihardlimit = (stat.f_files / 2);
325 if (quotactl(QCMD(Q_SETQUOTA, USRQUOTA), device.c_str(), uid,
326 reinterpret_cast<char*>(&dq)) != 0) {
327 PLOG(WARNING) << "Failed to set hard quota for " << uid;
330 LOG(DEBUG) << "Applied hard quotas for " << uid;
334 // Hard quota already set; assume it's reasonable
339 binder::Status InstalldNativeService::createAppData(const std::unique_ptr<std::string>& uuid,
340 const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
341 const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return) {
342 ENFORCE_UID(AID_SYSTEM);
343 CHECK_ARGUMENT_UUID(uuid);
344 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
345 std::lock_guard<std::recursive_mutex> lock(mLock);
347 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
348 const char* pkgname = packageName.c_str();
350 // Assume invalid inode unless filled in below
351 if (_aidl_return != nullptr) *_aidl_return = -1;
353 int32_t uid = multiuser_get_uid(userId, appId);
354 int32_t cacheGid = multiuser_get_cache_gid(userId, appId);
355 mode_t targetMode = targetSdkVersion >= MIN_RESTRICTED_HOME_SDK_VERSION ? 0700 : 0751;
357 // If UID doesn't have a specific cache GID, use UID value
358 if (cacheGid == -1) {
362 if (flags & FLAG_STORAGE_CE) {
363 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname);
364 bool existing = (access(path.c_str(), F_OK) == 0);
366 if (prepare_app_dir(path, targetMode, uid) ||
367 prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) ||
368 prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) {
369 return error("Failed to prepare " + path);
372 // Consider restorecon over contents if label changed
373 if (restorecon_app_data_lazy(path, seInfo, uid, existing) ||
374 restorecon_app_data_lazy(path, "cache", seInfo, uid, existing) ||
375 restorecon_app_data_lazy(path, "code_cache", seInfo, uid, existing)) {
376 return error("Failed to restorecon " + path);
379 // Remember inode numbers of cache directories so that we can clear
380 // contents while CE storage is locked
381 if (write_path_inode(path, "cache", kXattrInodeCache) ||
382 write_path_inode(path, "code_cache", kXattrInodeCodeCache)) {
383 return error("Failed to write_path_inode for " + path);
386 // And return the CE inode of the top-level data directory so we can
387 // clear contents while CE storage is locked
388 if ((_aidl_return != nullptr)
389 && get_path_inode(path, reinterpret_cast<ino_t*>(_aidl_return)) != 0) {
390 return error("Failed to get_path_inode for " + path);
393 if (flags & FLAG_STORAGE_DE) {
394 auto path = create_data_user_de_package_path(uuid_, userId, pkgname);
395 bool existing = (access(path.c_str(), F_OK) == 0);
397 if (prepare_app_dir(path, targetMode, uid) ||
398 prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) ||
399 prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) {
400 return error("Failed to prepare " + path);
403 // Consider restorecon over contents if label changed
404 if (restorecon_app_data_lazy(path, seInfo, uid, existing) ||
405 restorecon_app_data_lazy(path, "cache", seInfo, uid, existing) ||
406 restorecon_app_data_lazy(path, "code_cache", seInfo, uid, existing)) {
407 return error("Failed to restorecon " + path);
410 if (prepare_app_quota(uuid, findQuotaDeviceForUuid(uuid), uid)) {
411 return error("Failed to set hard quota " + path);
414 if (property_get_bool("dalvik.vm.usejitprofiles", false)) {
415 const std::string profile_dir =
416 create_primary_current_profile_package_dir_path(userId, pkgname);
417 // read-write-execute only for the app user.
418 if (fs_prepare_dir_strict(profile_dir.c_str(), 0700, uid, uid) != 0) {
419 return error("Failed to prepare " + profile_dir);
421 const std::string profile_file = create_current_profile_path(userId, pkgname,
422 /*is_secondary_dex*/false);
423 // read-write only for the app user.
424 if (fs_prepare_file_strict(profile_file.c_str(), 0600, uid, uid) != 0) {
425 return error("Failed to prepare " + profile_file);
427 const std::string ref_profile_path =
428 create_primary_reference_profile_package_dir_path(pkgname);
429 // dex2oat/profman runs under the shared app gid and it needs to read/write reference
431 int shared_app_gid = multiuser_get_shared_gid(0, appId);
432 if ((shared_app_gid != -1) && fs_prepare_dir_strict(
433 ref_profile_path.c_str(), 0700, shared_app_gid, shared_app_gid) != 0) {
434 return error("Failed to prepare " + ref_profile_path);
441 binder::Status InstalldNativeService::migrateAppData(const std::unique_ptr<std::string>& uuid,
442 const std::string& packageName, int32_t userId, int32_t flags) {
443 ENFORCE_UID(AID_SYSTEM);
444 CHECK_ARGUMENT_UUID(uuid);
445 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
446 std::lock_guard<std::recursive_mutex> lock(mLock);
448 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
449 const char* pkgname = packageName.c_str();
451 // This method only exists to upgrade system apps that have requested
452 // forceDeviceEncrypted, so their default storage always lives in a
453 // consistent location. This only works on non-FBE devices, since we
454 // never want to risk exposing data on a device with real CE/DE storage.
456 auto ce_path = create_data_user_ce_package_path(uuid_, userId, pkgname);
457 auto de_path = create_data_user_de_package_path(uuid_, userId, pkgname);
459 // If neither directory is marked as default, assume CE is default
460 if (getxattr(ce_path.c_str(), kXattrDefault, nullptr, 0) == -1
461 && getxattr(de_path.c_str(), kXattrDefault, nullptr, 0) == -1) {
462 if (setxattr(ce_path.c_str(), kXattrDefault, nullptr, 0, 0) != 0) {
463 return error("Failed to mark default storage " + ce_path);
467 // Migrate default data location if needed
468 auto target = (flags & FLAG_STORAGE_DE) ? de_path : ce_path;
469 auto source = (flags & FLAG_STORAGE_DE) ? ce_path : de_path;
471 if (getxattr(target.c_str(), kXattrDefault, nullptr, 0) == -1) {
472 LOG(WARNING) << "Requested default storage " << target
473 << " is not active; migrating from " << source;
474 if (delete_dir_contents_and_dir(target) != 0) {
475 return error("Failed to delete " + target);
477 if (rename(source.c_str(), target.c_str()) != 0) {
478 return error("Failed to rename " + source + " to " + target);
486 binder::Status InstalldNativeService::clearAppProfiles(const std::string& packageName) {
487 ENFORCE_UID(AID_SYSTEM);
488 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
489 std::lock_guard<std::recursive_mutex> lock(mLock);
491 binder::Status res = ok();
492 if (!clear_primary_reference_profile(packageName)) {
493 res = error("Failed to clear reference profile for " + packageName);
495 if (!clear_primary_current_profiles(packageName)) {
496 res = error("Failed to clear current profiles for " + packageName);
501 binder::Status InstalldNativeService::clearAppData(const std::unique_ptr<std::string>& uuid,
502 const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) {
503 ENFORCE_UID(AID_SYSTEM);
504 CHECK_ARGUMENT_UUID(uuid);
505 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
506 std::lock_guard<std::recursive_mutex> lock(mLock);
508 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
509 const char* pkgname = packageName.c_str();
511 binder::Status res = ok();
512 if (flags & FLAG_STORAGE_CE) {
513 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode);
514 if (flags & FLAG_CLEAR_CACHE_ONLY) {
515 path = read_path_inode(path, "cache", kXattrInodeCache);
516 } else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
517 path = read_path_inode(path, "code_cache", kXattrInodeCodeCache);
519 if (access(path.c_str(), F_OK) == 0) {
520 if (delete_dir_contents(path) != 0) {
521 res = error("Failed to delete contents of " + path);
525 if (flags & FLAG_STORAGE_DE) {
526 std::string suffix = "";
527 bool only_cache = false;
528 if (flags & FLAG_CLEAR_CACHE_ONLY) {
529 suffix = CACHE_DIR_POSTFIX;
531 } else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) {
532 suffix = CODE_CACHE_DIR_POSTFIX;
536 auto path = create_data_user_de_package_path(uuid_, userId, pkgname) + suffix;
537 if (access(path.c_str(), F_OK) == 0) {
538 if (delete_dir_contents(path) != 0) {
539 res = error("Failed to delete contents of " + path);
543 if (!clear_primary_current_profile(packageName, userId)) {
544 res = error("Failed to clear current profile for " + packageName);
551 static int destroy_app_reference_profile(const std::string& pkgname) {
552 return delete_dir_contents_and_dir(
553 create_primary_reference_profile_package_dir_path(pkgname),
554 /*ignore_if_missing*/ true);
557 static int destroy_app_current_profiles(const std::string& pkgname, userid_t userid) {
558 return delete_dir_contents_and_dir(
559 create_primary_current_profile_package_dir_path(userid, pkgname),
560 /*ignore_if_missing*/ true);
563 binder::Status InstalldNativeService::destroyAppProfiles(const std::string& packageName) {
564 ENFORCE_UID(AID_SYSTEM);
565 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
566 std::lock_guard<std::recursive_mutex> lock(mLock);
568 binder::Status res = ok();
569 std::vector<userid_t> users = get_known_users(/*volume_uuid*/ nullptr);
570 for (auto user : users) {
571 if (destroy_app_current_profiles(packageName, user) != 0) {
572 res = error("Failed to destroy current profiles for " + packageName);
575 if (destroy_app_reference_profile(packageName) != 0) {
576 res = error("Failed to destroy reference profile for " + packageName);
581 binder::Status InstalldNativeService::destroyAppData(const std::unique_ptr<std::string>& uuid,
582 const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) {
583 ENFORCE_UID(AID_SYSTEM);
584 CHECK_ARGUMENT_UUID(uuid);
585 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
586 std::lock_guard<std::recursive_mutex> lock(mLock);
588 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
589 const char* pkgname = packageName.c_str();
591 binder::Status res = ok();
592 if (flags & FLAG_STORAGE_CE) {
593 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode);
594 if (delete_dir_contents_and_dir(path) != 0) {
595 res = error("Failed to delete " + path);
598 if (flags & FLAG_STORAGE_DE) {
599 auto path = create_data_user_de_package_path(uuid_, userId, pkgname);
600 if (delete_dir_contents_and_dir(path) != 0) {
601 res = error("Failed to delete " + path);
603 destroy_app_current_profiles(packageName, userId);
604 // TODO(calin): If the package is still installed by other users it's probably
605 // beneficial to keep the reference profile around.
606 // Verify if it's ok to do that.
607 destroy_app_reference_profile(packageName);
612 static gid_t get_cache_gid(uid_t uid) {
613 int32_t gid = multiuser_get_cache_gid(multiuser_get_user_id(uid), multiuser_get_app_id(uid));
614 return (gid != -1) ? gid : uid;
617 binder::Status InstalldNativeService::fixupAppData(const std::unique_ptr<std::string>& uuid,
619 ENFORCE_UID(AID_SYSTEM);
620 CHECK_ARGUMENT_UUID(uuid);
621 std::lock_guard<std::recursive_mutex> lock(mLock);
623 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
624 for (auto user : get_known_users(uuid_)) {
625 ATRACE_BEGIN("fixup user");
628 auto ce_path = create_data_user_ce_path(uuid_, user);
629 auto de_path = create_data_user_de_path(uuid_, user);
630 char *argv[] = { (char*) ce_path.c_str(), (char*) de_path.c_str(), nullptr };
631 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL))) {
632 return error("Failed to fts_open");
634 while ((p = fts_read(fts)) != nullptr) {
635 if (p->fts_info == FTS_D && p->fts_level == 1) {
636 // Track down inodes of cache directories
638 ino_t inode_cache = 0;
639 ino_t inode_code_cache = 0;
640 if (getxattr(p->fts_path, kXattrInodeCache, &raw, sizeof(raw)) == sizeof(raw)) {
643 if (getxattr(p->fts_path, kXattrInodeCodeCache, &raw, sizeof(raw)) == sizeof(raw)) {
644 inode_code_cache = raw;
647 // Figure out expected GID of each child
648 FTSENT* child = fts_children(fts, 0);
649 while (child != nullptr) {
650 if ((child->fts_statp->st_ino == inode_cache)
651 || (child->fts_statp->st_ino == inode_code_cache)
652 || !strcmp(child->fts_name, "cache")
653 || !strcmp(child->fts_name, "code_cache")) {
654 child->fts_number = get_cache_gid(p->fts_statp->st_uid);
656 child->fts_number = p->fts_statp->st_uid;
658 child = child->fts_link;
660 } else if (p->fts_level >= 2) {
661 if (p->fts_level > 2) {
662 // Inherit GID from parent once we're deeper into tree
663 p->fts_number = p->fts_parent->fts_number;
666 uid_t uid = p->fts_parent->fts_statp->st_uid;
667 gid_t cache_gid = get_cache_gid(uid);
668 gid_t expected = p->fts_number;
669 gid_t actual = p->fts_statp->st_gid;
670 if (actual == expected) {
672 LOG(DEBUG) << "Ignoring " << p->fts_path << " with expected GID " << expected;
674 if (!(flags & FLAG_FORCE)) {
675 fts_set(fts, p, FTS_SKIP);
677 } else if ((actual == uid) || (actual == cache_gid)) {
678 // Only consider fixing up when current GID belongs to app
679 if (p->fts_info != FTS_D) {
680 LOG(INFO) << "Fixing " << p->fts_path << " with unexpected GID " << actual
681 << " instead of " << expected;
683 switch (p->fts_info) {
685 // If we're moving towards cache GID, we need to set S_ISGID
686 if (expected == cache_gid) {
687 if (chmod(p->fts_path, 02771) != 0) {
688 PLOG(WARNING) << "Failed to chmod " << p->fts_path;
691 // Intentional fall through to also set GID
693 if (chown(p->fts_path, -1, expected) != 0) {
694 PLOG(WARNING) << "Failed to chown " << p->fts_path;
699 if (lchown(p->fts_path, -1, expected) != 0) {
700 PLOG(WARNING) << "Failed to chown " << p->fts_path;
705 // Ignore all other GID transitions, since they're kinda shady
706 LOG(WARNING) << "Ignoring " << p->fts_path << " with unexpected GID " << actual
707 << " instead of " << expected;
717 binder::Status InstalldNativeService::moveCompleteApp(const std::unique_ptr<std::string>& fromUuid,
718 const std::unique_ptr<std::string>& toUuid, const std::string& packageName,
719 const std::string& dataAppName, int32_t appId, const std::string& seInfo,
720 int32_t targetSdkVersion) {
721 ENFORCE_UID(AID_SYSTEM);
722 CHECK_ARGUMENT_UUID(fromUuid);
723 CHECK_ARGUMENT_UUID(toUuid);
724 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
725 std::lock_guard<std::recursive_mutex> lock(mLock);
727 const char* from_uuid = fromUuid ? fromUuid->c_str() : nullptr;
728 const char* to_uuid = toUuid ? toUuid->c_str() : nullptr;
729 const char* package_name = packageName.c_str();
730 const char* data_app_name = dataAppName.c_str();
732 binder::Status res = ok();
733 std::vector<userid_t> users = get_known_users(from_uuid);
737 auto from = create_data_app_package_path(from_uuid, data_app_name);
738 auto to = create_data_app_package_path(to_uuid, data_app_name);
739 auto to_parent = create_data_app_path(to_uuid);
743 (char*) "-F", /* delete any existing destination file first (--remove-destination) */
744 (char*) "-p", /* preserve timestamps, ownership, and permissions */
745 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
746 (char*) "-P", /* Do not follow symlinks [default] */
747 (char*) "-d", /* don't dereference symlinks */
748 (char*) from.c_str(),
749 (char*) to_parent.c_str()
752 LOG(DEBUG) << "Copying " << from << " to " << to;
753 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
755 res = error(rc, "Failed copying " + from + " to " + to);
759 if (selinux_android_restorecon(to.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) {
760 res = error("Failed to restorecon " + to);
765 // Copy private data for all known users
766 for (auto user : users) {
768 // Data source may not exist for all users; that's okay
769 auto from_ce = create_data_user_ce_package_path(from_uuid, user, package_name);
770 if (access(from_ce.c_str(), F_OK) != 0) {
771 LOG(INFO) << "Missing source " << from_ce;
775 if (!createAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE, appId,
776 seInfo, targetSdkVersion, nullptr).isOk()) {
777 res = error("Failed to create package target");
783 (char*) "-F", /* delete any existing destination file first (--remove-destination) */
784 (char*) "-p", /* preserve timestamps, ownership, and permissions */
785 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */
786 (char*) "-P", /* Do not follow symlinks [default] */
787 (char*) "-d", /* don't dereference symlinks */
793 auto from = create_data_user_de_package_path(from_uuid, user, package_name);
794 auto to = create_data_user_de_path(to_uuid, user);
795 argv[6] = (char*) from.c_str();
796 argv[7] = (char*) to.c_str();
798 LOG(DEBUG) << "Copying " << from << " to " << to;
799 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
801 res = error(rc, "Failed copying " + from + " to " + to);
806 auto from = create_data_user_ce_package_path(from_uuid, user, package_name);
807 auto to = create_data_user_ce_path(to_uuid, user);
808 argv[6] = (char*) from.c_str();
809 argv[7] = (char*) to.c_str();
811 LOG(DEBUG) << "Copying " << from << " to " << to;
812 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true);
814 res = error(rc, "Failed copying " + from + " to " + to);
819 if (!restoreconAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE,
820 appId, seInfo).isOk()) {
821 res = error("Failed to restorecon");
826 // We let the framework scan the new location and persist that before
827 // deleting the data in the old location; this ordering ensures that
828 // we can recover from things like battery pulls.
832 // Nuke everything we might have already copied
834 auto to = create_data_app_package_path(to_uuid, data_app_name);
835 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
836 LOG(WARNING) << "Failed to rollback " << to;
839 for (auto user : users) {
841 auto to = create_data_user_de_package_path(to_uuid, user, package_name);
842 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
843 LOG(WARNING) << "Failed to rollback " << to;
847 auto to = create_data_user_ce_package_path(to_uuid, user, package_name);
848 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) {
849 LOG(WARNING) << "Failed to rollback " << to;
856 binder::Status InstalldNativeService::createUserData(const std::unique_ptr<std::string>& uuid,
857 int32_t userId, int32_t userSerial ATTRIBUTE_UNUSED, int32_t flags) {
858 ENFORCE_UID(AID_SYSTEM);
859 CHECK_ARGUMENT_UUID(uuid);
860 std::lock_guard<std::recursive_mutex> lock(mLock);
862 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
863 if (flags & FLAG_STORAGE_DE) {
864 if (uuid_ == nullptr) {
865 if (ensure_config_user_dirs(userId) != 0) {
866 return error(StringPrintf("Failed to ensure dirs for %d", userId));
871 // Data under /data/media doesn't have an app, but we still want
872 // to limit it to prevent abuse.
873 if (prepare_app_quota(uuid, findQuotaDeviceForUuid(uuid),
874 multiuser_get_uid(userId, AID_MEDIA_RW))) {
875 return error("Failed to set hard quota for media_rw");
881 binder::Status InstalldNativeService::destroyUserData(const std::unique_ptr<std::string>& uuid,
882 int32_t userId, int32_t flags) {
883 ENFORCE_UID(AID_SYSTEM);
884 CHECK_ARGUMENT_UUID(uuid);
885 std::lock_guard<std::recursive_mutex> lock(mLock);
887 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
888 binder::Status res = ok();
889 if (flags & FLAG_STORAGE_DE) {
890 auto path = create_data_user_de_path(uuid_, userId);
891 if (delete_dir_contents_and_dir(path, true) != 0) {
892 res = error("Failed to delete " + path);
894 if (uuid_ == nullptr) {
895 path = create_data_misc_legacy_path(userId);
896 if (delete_dir_contents_and_dir(path, true) != 0) {
897 res = error("Failed to delete " + path);
899 path = create_primary_cur_profile_dir_path(userId);
900 if (delete_dir_contents_and_dir(path, true) != 0) {
901 res = error("Failed to delete " + path);
905 if (flags & FLAG_STORAGE_CE) {
906 auto path = create_data_user_ce_path(uuid_, userId);
907 if (delete_dir_contents_and_dir(path, true) != 0) {
908 res = error("Failed to delete " + path);
910 path = findDataMediaPath(uuid, userId);
911 if (delete_dir_contents_and_dir(path, true) != 0) {
912 res = error("Failed to delete " + path);
918 binder::Status InstalldNativeService::freeCache(const std::unique_ptr<std::string>& uuid,
919 int64_t targetFreeBytes, int64_t cacheReservedBytes, int32_t flags) {
920 ENFORCE_UID(AID_SYSTEM);
921 CHECK_ARGUMENT_UUID(uuid);
922 std::lock_guard<std::recursive_mutex> lock(mLock);
924 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
925 auto data_path = create_data_path(uuid_);
926 auto device = findQuotaDeviceForUuid(uuid);
927 auto noop = (flags & FLAG_FREE_CACHE_NOOP);
929 int64_t free = data_disk_free(data_path);
931 return error("Failed to determine free space for " + data_path);
935 int64_t needed = targetFreeBytes - free;
936 LOG(DEBUG) << "Device " << data_path << " has " << free << " free; requested "
937 << targetFreeBytes << "; needed " << needed;
939 if (free >= targetFreeBytes) {
943 if (flags & FLAG_FREE_CACHE_V2) {
944 // This new cache strategy fairly removes files from UIDs by deleting
945 // files from the UIDs which are most over their allocated quota
947 // 1. Create trackers for every known UID
948 ATRACE_BEGIN("create");
949 std::unordered_map<uid_t, std::shared_ptr<CacheTracker>> trackers;
950 for (auto user : get_known_users(uuid_)) {
953 auto ce_path = create_data_user_ce_path(uuid_, user);
954 auto de_path = create_data_user_de_path(uuid_, user);
955 auto media_path = findDataMediaPath(uuid, user) + "/Android/data/";
956 char *argv[] = { (char*) ce_path.c_str(), (char*) de_path.c_str(),
957 (char*) media_path.c_str(), nullptr };
958 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL))) {
959 return error("Failed to fts_open");
961 while ((p = fts_read(fts)) != NULL) {
962 if (p->fts_info == FTS_D && p->fts_level == 1) {
963 uid_t uid = p->fts_statp->st_uid;
964 if (multiuser_get_app_id(uid) == AID_MEDIA_RW) {
965 uid = (multiuser_get_app_id(p->fts_statp->st_gid) - AID_EXT_GID_START)
968 auto search = trackers.find(uid);
969 if (search != trackers.end()) {
970 search->second->addDataPath(p->fts_path);
972 auto tracker = std::shared_ptr<CacheTracker>(new CacheTracker(
973 multiuser_get_user_id(uid), multiuser_get_app_id(uid), device));
974 tracker->addDataPath(p->fts_path);
976 std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
977 tracker->cacheQuota = mCacheQuotas[uid];
979 if (tracker->cacheQuota == 0) {
981 LOG(WARNING) << "UID " << uid << " has no cache quota; assuming 64MB";
983 tracker->cacheQuota = 67108864;
985 trackers[uid] = tracker;
987 fts_set(fts, p, FTS_SKIP);
994 // 2. Populate tracker stats and insert into priority queue
995 ATRACE_BEGIN("populate");
996 int64_t cacheTotal = 0;
997 auto cmp = [](std::shared_ptr<CacheTracker> left, std::shared_ptr<CacheTracker> right) {
998 return (left->getCacheRatio() < right->getCacheRatio());
1000 std::priority_queue<std::shared_ptr<CacheTracker>,
1001 std::vector<std::shared_ptr<CacheTracker>>, decltype(cmp)> queue(cmp);
1002 for (const auto& it : trackers) {
1003 it.second->loadStats();
1004 queue.push(it.second);
1005 cacheTotal += it.second->cacheUsed;
1009 // 3. Bounce across the queue, freeing items from whichever tracker is
1010 // the most over their assigned quota
1011 ATRACE_BEGIN("bounce");
1012 std::shared_ptr<CacheTracker> active;
1013 while (active || !queue.empty()) {
1014 // Only look at apps under quota when explicitly requested
1015 if (active && (active->getCacheRatio() < 10000)
1016 && !(flags & FLAG_FREE_CACHE_V2_DEFY_QUOTA)) {
1017 LOG(DEBUG) << "Active ratio " << active->getCacheRatio()
1018 << " isn't over quota, and defy not requested";
1022 // Only keep clearing when we haven't pushed into reserved area
1023 if (cacheReservedBytes > 0 && cleared >= (cacheTotal - cacheReservedBytes)) {
1024 LOG(DEBUG) << "Refusing to clear cached data in reserved space";
1028 // Find the best tracker to work with; this might involve swapping
1029 // if the active tracker is no longer the most over quota
1030 bool nextBetter = active && !queue.empty()
1031 && active->getCacheRatio() < queue.top()->getCacheRatio();
1032 if (!active || nextBetter) {
1034 // Current tracker still has items, so we'll consider it
1035 // again later once it bubbles up to surface
1038 active = queue.top(); queue.pop();
1039 active->ensureItems();
1043 // If no items remain, go find another tracker
1044 if (active->items.empty()) {
1048 auto item = active->items.back();
1049 active->items.pop_back();
1051 LOG(DEBUG) << "Purging " << item->toString() << " from " << active->toString();
1055 active->cacheUsed -= item->size;
1056 needed -= item->size;
1057 cleared += item->size;
1060 // Verify that we're actually done before bailing, since sneaky
1061 // apps might be using hardlinks
1063 free = data_disk_free(data_path);
1064 needed = targetFreeBytes - free;
1068 LOG(WARNING) << "Expected to be done but still need " << needed;
1075 return error("Legacy cache logic no longer supported");
1078 free = data_disk_free(data_path);
1079 if (free >= targetFreeBytes) {
1082 return error(StringPrintf("Failed to free up %" PRId64 " on %s; final free space %" PRId64,
1083 targetFreeBytes, data_path.c_str(), free));
1087 binder::Status InstalldNativeService::rmdex(const std::string& codePath,
1088 const std::string& instructionSet) {
1089 ENFORCE_UID(AID_SYSTEM);
1090 std::lock_guard<std::recursive_mutex> lock(mLock);
1092 char dex_path[PKG_PATH_MAX];
1094 const char* path = codePath.c_str();
1095 const char* instruction_set = instructionSet.c_str();
1097 if (validate_apk_path(path) && validate_system_app_path(path)) {
1098 return error("Invalid path " + codePath);
1101 if (!create_cache_path(dex_path, path, instruction_set)) {
1102 return error("Failed to create cache path for " + codePath);
1105 ALOGV("unlink %s\n", dex_path);
1106 if (unlink(dex_path) < 0) {
1107 // It's ok if we don't have a dalvik cache path. Report error only when the path exists
1108 // but could not be unlinked.
1109 if (errno != ENOENT) {
1110 return error(StringPrintf("Failed to unlink %s", dex_path));
1123 static std::string toString(std::vector<int64_t> values) {
1124 std::stringstream res;
1126 for (size_t i = 0; i < values.size(); i++) {
1128 if (i < values.size() - 1) {
1137 static void collectQuotaStats(const std::string& device, int32_t userId,
1138 int32_t appId, struct stats* stats, struct stats* extStats) {
1139 if (device.empty()) return;
1143 if (stats != nullptr) {
1144 uid_t uid = multiuser_get_uid(userId, appId);
1145 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid,
1146 reinterpret_cast<char*>(&dq)) != 0) {
1147 if (errno != ESRCH) {
1148 PLOG(ERROR) << "Failed to quotactl " << device << " for UID " << uid;
1152 LOG(DEBUG) << "quotactl() for UID " << uid << " " << dq.dqb_curspace;
1154 stats->dataSize += dq.dqb_curspace;
1157 int cacheGid = multiuser_get_cache_gid(userId, appId);
1158 if (cacheGid != -1) {
1159 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), cacheGid,
1160 reinterpret_cast<char*>(&dq)) != 0) {
1161 if (errno != ESRCH) {
1162 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << cacheGid;
1166 LOG(DEBUG) << "quotactl() for GID " << cacheGid << " " << dq.dqb_curspace;
1168 stats->cacheSize += dq.dqb_curspace;
1172 int sharedGid = multiuser_get_shared_gid(0, appId);
1173 if (sharedGid != -1) {
1174 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), sharedGid,
1175 reinterpret_cast<char*>(&dq)) != 0) {
1176 if (errno != ESRCH) {
1177 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << sharedGid;
1181 LOG(DEBUG) << "quotactl() for GID " << sharedGid << " " << dq.dqb_curspace;
1183 stats->codeSize += dq.dqb_curspace;
1188 if (extStats != nullptr) {
1189 int extGid = multiuser_get_ext_gid(userId, appId);
1191 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), extGid,
1192 reinterpret_cast<char*>(&dq)) != 0) {
1193 if (errno != ESRCH) {
1194 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << extGid;
1198 LOG(DEBUG) << "quotactl() for GID " << extGid << " " << dq.dqb_curspace;
1200 extStats->dataSize += dq.dqb_curspace;
1204 int extCacheGid = multiuser_get_ext_cache_gid(userId, appId);
1205 if (extCacheGid != -1) {
1206 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), extCacheGid,
1207 reinterpret_cast<char*>(&dq)) != 0) {
1208 if (errno != ESRCH) {
1209 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << extCacheGid;
1213 LOG(DEBUG) << "quotactl() for GID " << extCacheGid << " " << dq.dqb_curspace;
1215 extStats->dataSize += dq.dqb_curspace;
1216 extStats->cacheSize += dq.dqb_curspace;
1222 static void collectManualStats(const std::string& path, struct stats* stats) {
1228 d = opendir(path.c_str());
1230 if (errno != ENOENT) {
1231 PLOG(WARNING) << "Failed to open " << path;
1236 while ((de = readdir(d))) {
1237 const char *name = de->d_name;
1240 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) {
1241 size = s.st_blocks * 512;
1244 if (de->d_type == DT_DIR) {
1245 if (!strcmp(name, ".")) {
1246 // Don't recurse, but still count node size
1247 } else if (!strcmp(name, "..")) {
1248 // Don't recurse or count node size
1251 // Measure all children nodes
1253 calculate_tree_size(StringPrintf("%s/%s", path.c_str(), name), &size);
1256 if (!strcmp(name, "cache") || !strcmp(name, "code_cache")) {
1257 stats->cacheSize += size;
1261 // Legacy symlink isn't owned by app
1262 if (de->d_type == DT_LNK && !strcmp(name, "lib")) {
1266 // Everything found inside is considered data
1267 stats->dataSize += size;
1272 static void collectManualStatsForUser(const std::string& path, struct stats* stats,
1273 bool exclude_apps = false) {
1279 d = opendir(path.c_str());
1281 if (errno != ENOENT) {
1282 PLOG(WARNING) << "Failed to open " << path;
1287 while ((de = readdir(d))) {
1288 if (de->d_type == DT_DIR) {
1289 const char *name = de->d_name;
1290 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) != 0) {
1293 int32_t user_uid = multiuser_get_app_id(s.st_uid);
1294 if (!strcmp(name, ".") || !strcmp(name, "..")) {
1296 } else if (exclude_apps && (user_uid >= AID_APP_START && user_uid <= AID_APP_END)) {
1299 collectManualStats(StringPrintf("%s/%s", path.c_str(), name), stats);
1306 static void collectManualExternalStatsForUser(const std::string& path, struct stats* stats) {
1309 char *argv[] = { (char*) path.c_str(), nullptr };
1310 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL))) {
1311 PLOG(ERROR) << "Failed to fts_open " << path;
1314 while ((p = fts_read(fts)) != NULL) {
1315 p->fts_number = p->fts_parent->fts_number;
1316 switch (p->fts_info) {
1318 if (p->fts_level == 4
1319 && !strcmp(p->fts_name, "cache")
1320 && !strcmp(p->fts_parent->fts_parent->fts_name, "data")
1321 && !strcmp(p->fts_parent->fts_parent->fts_parent->fts_name, "Android")) {
1324 // Fall through to count the directory
1329 int64_t size = (p->fts_statp->st_blocks * 512);
1330 if (p->fts_number == 1) {
1331 stats->cacheSize += size;
1333 stats->dataSize += size;
1340 binder::Status InstalldNativeService::getAppSize(const std::unique_ptr<std::string>& uuid,
1341 const std::vector<std::string>& packageNames, int32_t userId, int32_t flags,
1342 int32_t appId, const std::vector<int64_t>& ceDataInodes,
1343 const std::vector<std::string>& codePaths, std::vector<int64_t>* _aidl_return) {
1344 ENFORCE_UID(AID_SYSTEM);
1345 CHECK_ARGUMENT_UUID(uuid);
1346 for (auto packageName : packageNames) {
1347 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
1349 // NOTE: Locking is relaxed on this method, since it's limited to
1350 // read-only measurements without mutation.
1352 // When modifying this logic, always verify using tests:
1353 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetAppSize
1356 LOG(INFO) << "Measuring user " << userId << " app " << appId;
1359 // Here's a summary of the common storage locations across the platform,
1360 // and how they're each tagged:
1362 // /data/app/com.example UID system
1363 // /data/app/com.example/oat UID system
1364 // /data/user/0/com.example UID u0_a10 GID u0_a10
1365 // /data/user/0/com.example/cache UID u0_a10 GID u0_a10_cache
1366 // /data/media/0/foo.txt UID u0_media_rw
1367 // /data/media/0/bar.jpg UID u0_media_rw GID u0_media_image
1368 // /data/media/0/Android/data/com.example UID u0_media_rw GID u0_a10_ext
1369 // /data/media/0/Android/data/com.example/cache UID u0_media_rw GID u0_a10_ext_cache
1370 // /data/media/obb/com.example UID system
1373 struct stats extStats;
1374 memset(&stats, 0, sizeof(stats));
1375 memset(&extStats, 0, sizeof(extStats));
1377 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
1379 auto device = findQuotaDeviceForUuid(uuid);
1380 if (device.empty()) {
1381 flags &= ~FLAG_USE_QUOTA;
1384 ATRACE_BEGIN("obb");
1385 for (auto packageName : packageNames) {
1386 auto obbCodePath = create_data_media_obb_path(uuid_, packageName.c_str());
1387 calculate_tree_size(obbCodePath, &extStats.codeSize);
1391 if (flags & FLAG_USE_QUOTA && appId >= AID_APP_START) {
1392 ATRACE_BEGIN("code");
1393 for (auto codePath : codePaths) {
1394 calculate_tree_size(codePath, &stats.codeSize, -1,
1395 multiuser_get_shared_gid(0, appId));
1399 ATRACE_BEGIN("quota");
1400 collectQuotaStats(device, userId, appId, &stats, &extStats);
1403 ATRACE_BEGIN("code");
1404 for (auto codePath : codePaths) {
1405 calculate_tree_size(codePath, &stats.codeSize);
1409 for (size_t i = 0; i < packageNames.size(); i++) {
1410 const char* pkgname = packageNames[i].c_str();
1412 ATRACE_BEGIN("data");
1413 auto cePath = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInodes[i]);
1414 collectManualStats(cePath, &stats);
1415 auto dePath = create_data_user_de_package_path(uuid_, userId, pkgname);
1416 collectManualStats(dePath, &stats);
1420 ATRACE_BEGIN("profiles");
1421 calculate_tree_size(
1422 create_primary_current_profile_package_dir_path(userId, pkgname),
1424 calculate_tree_size(
1425 create_primary_reference_profile_package_dir_path(pkgname),
1430 ATRACE_BEGIN("external");
1431 auto extPath = create_data_media_package_path(uuid_, userId, "data", pkgname);
1432 collectManualStats(extPath, &extStats);
1433 auto mediaPath = create_data_media_package_path(uuid_, userId, "media", pkgname);
1434 calculate_tree_size(mediaPath, &extStats.dataSize);
1439 ATRACE_BEGIN("dalvik");
1440 int32_t sharedGid = multiuser_get_shared_gid(0, appId);
1441 if (sharedGid != -1) {
1442 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize,
1449 std::vector<int64_t> ret;
1450 ret.push_back(stats.codeSize);
1451 ret.push_back(stats.dataSize);
1452 ret.push_back(stats.cacheSize);
1453 ret.push_back(extStats.codeSize);
1454 ret.push_back(extStats.dataSize);
1455 ret.push_back(extStats.cacheSize);
1457 LOG(DEBUG) << "Final result " << toString(ret);
1459 *_aidl_return = ret;
1463 binder::Status InstalldNativeService::getUserSize(const std::unique_ptr<std::string>& uuid,
1464 int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
1465 std::vector<int64_t>* _aidl_return) {
1466 ENFORCE_UID(AID_SYSTEM);
1467 CHECK_ARGUMENT_UUID(uuid);
1468 // NOTE: Locking is relaxed on this method, since it's limited to
1469 // read-only measurements without mutation.
1471 // When modifying this logic, always verify using tests:
1472 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetUserSize
1475 LOG(INFO) << "Measuring user " << userId;
1479 struct stats extStats;
1480 memset(&stats, 0, sizeof(stats));
1481 memset(&extStats, 0, sizeof(extStats));
1483 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
1485 auto device = findQuotaDeviceForUuid(uuid);
1486 if (device.empty()) {
1487 flags &= ~FLAG_USE_QUOTA;
1490 if (flags & FLAG_USE_QUOTA) {
1493 ATRACE_BEGIN("obb");
1494 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), AID_MEDIA_OBB,
1495 reinterpret_cast<char*>(&dq)) != 0) {
1496 if (errno != ESRCH) {
1497 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << AID_MEDIA_OBB;
1501 LOG(DEBUG) << "quotactl() for GID " << AID_MEDIA_OBB << " " << dq.dqb_curspace;
1503 extStats.codeSize += dq.dqb_curspace;
1507 ATRACE_BEGIN("code");
1508 calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize, -1, -1, true);
1511 ATRACE_BEGIN("data");
1512 auto cePath = create_data_user_ce_path(uuid_, userId);
1513 collectManualStatsForUser(cePath, &stats, true);
1514 auto dePath = create_data_user_de_path(uuid_, userId);
1515 collectManualStatsForUser(dePath, &stats, true);
1519 ATRACE_BEGIN("profile");
1520 auto userProfilePath = create_primary_cur_profile_dir_path(userId);
1521 calculate_tree_size(userProfilePath, &stats.dataSize, -1, -1, true);
1522 auto refProfilePath = create_primary_ref_profile_dir_path();
1523 calculate_tree_size(refProfilePath, &stats.codeSize, -1, -1, true);
1527 ATRACE_BEGIN("external");
1528 uid_t uid = multiuser_get_uid(userId, AID_MEDIA_RW);
1529 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid,
1530 reinterpret_cast<char*>(&dq)) != 0) {
1531 if (errno != ESRCH) {
1532 PLOG(ERROR) << "Failed to quotactl " << device << " for UID " << uid;
1536 LOG(DEBUG) << "quotactl() for UID " << uid << " " << dq.dqb_curspace;
1538 extStats.dataSize += dq.dqb_curspace;
1543 ATRACE_BEGIN("dalvik");
1544 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize,
1546 calculate_tree_size(create_primary_cur_profile_dir_path(userId), &stats.dataSize,
1551 ATRACE_BEGIN("quota");
1552 int64_t dataSize = extStats.dataSize;
1553 for (auto appId : appIds) {
1554 if (appId >= AID_APP_START) {
1555 collectQuotaStats(device, userId, appId, &stats, &extStats);
1558 // Sleep to make sure we don't lose logs
1563 extStats.dataSize = dataSize;
1566 ATRACE_BEGIN("obb");
1567 auto obbPath = create_data_path(uuid_) + "/media/obb";
1568 calculate_tree_size(obbPath, &extStats.codeSize);
1571 ATRACE_BEGIN("code");
1572 calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize);
1575 ATRACE_BEGIN("data");
1576 auto cePath = create_data_user_ce_path(uuid_, userId);
1577 collectManualStatsForUser(cePath, &stats);
1578 auto dePath = create_data_user_de_path(uuid_, userId);
1579 collectManualStatsForUser(dePath, &stats);
1583 ATRACE_BEGIN("profile");
1584 auto userProfilePath = create_primary_cur_profile_dir_path(userId);
1585 calculate_tree_size(userProfilePath, &stats.dataSize);
1586 auto refProfilePath = create_primary_ref_profile_dir_path();
1587 calculate_tree_size(refProfilePath, &stats.codeSize);
1591 ATRACE_BEGIN("external");
1592 auto dataMediaPath = create_data_media_path(uuid_, userId);
1593 collectManualExternalStatsForUser(dataMediaPath, &extStats);
1595 LOG(DEBUG) << "Measured external data " << extStats.dataSize << " cache "
1596 << extStats.cacheSize;
1601 ATRACE_BEGIN("dalvik");
1602 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize);
1603 calculate_tree_size(create_primary_cur_profile_dir_path(userId), &stats.dataSize);
1608 std::vector<int64_t> ret;
1609 ret.push_back(stats.codeSize);
1610 ret.push_back(stats.dataSize);
1611 ret.push_back(stats.cacheSize);
1612 ret.push_back(extStats.codeSize);
1613 ret.push_back(extStats.dataSize);
1614 ret.push_back(extStats.cacheSize);
1616 LOG(DEBUG) << "Final result " << toString(ret);
1618 *_aidl_return = ret;
1622 binder::Status InstalldNativeService::getExternalSize(const std::unique_ptr<std::string>& uuid,
1623 int32_t userId, int32_t flags, const std::vector<int32_t>& appIds,
1624 std::vector<int64_t>* _aidl_return) {
1625 ENFORCE_UID(AID_SYSTEM);
1626 CHECK_ARGUMENT_UUID(uuid);
1627 // NOTE: Locking is relaxed on this method, since it's limited to
1628 // read-only measurements without mutation.
1630 // When modifying this logic, always verify using tests:
1631 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetExternalSize
1634 LOG(INFO) << "Measuring external " << userId;
1637 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
1639 int64_t totalSize = 0;
1640 int64_t audioSize = 0;
1641 int64_t videoSize = 0;
1642 int64_t imageSize = 0;
1643 int64_t appSize = 0;
1645 auto device = findQuotaDeviceForUuid(uuid);
1646 if (device.empty()) {
1647 flags &= ~FLAG_USE_QUOTA;
1650 if (flags & FLAG_USE_QUOTA) {
1653 ATRACE_BEGIN("quota");
1654 uid_t uid = multiuser_get_uid(userId, AID_MEDIA_RW);
1655 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid,
1656 reinterpret_cast<char*>(&dq)) != 0) {
1657 if (errno != ESRCH) {
1658 PLOG(ERROR) << "Failed to quotactl " << device << " for UID " << uid;
1662 LOG(DEBUG) << "quotactl() for UID " << uid << " " << dq.dqb_curspace;
1664 totalSize = dq.dqb_curspace;
1667 gid_t audioGid = multiuser_get_uid(userId, AID_MEDIA_AUDIO);
1668 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), audioGid,
1669 reinterpret_cast<char*>(&dq)) == 0) {
1671 LOG(DEBUG) << "quotactl() for GID " << audioGid << " " << dq.dqb_curspace;
1673 audioSize = dq.dqb_curspace;
1675 gid_t videoGid = multiuser_get_uid(userId, AID_MEDIA_VIDEO);
1676 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), videoGid,
1677 reinterpret_cast<char*>(&dq)) == 0) {
1679 LOG(DEBUG) << "quotactl() for GID " << videoGid << " " << dq.dqb_curspace;
1681 videoSize = dq.dqb_curspace;
1683 gid_t imageGid = multiuser_get_uid(userId, AID_MEDIA_IMAGE);
1684 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), imageGid,
1685 reinterpret_cast<char*>(&dq)) == 0) {
1687 LOG(DEBUG) << "quotactl() for GID " << imageGid << " " << dq.dqb_curspace;
1689 imageSize = dq.dqb_curspace;
1693 ATRACE_BEGIN("apps");
1694 struct stats extStats;
1695 memset(&extStats, 0, sizeof(extStats));
1696 for (auto appId : appIds) {
1697 if (appId >= AID_APP_START) {
1698 collectQuotaStats(device, userId, appId, nullptr, &extStats);
1701 appSize = extStats.dataSize + extStats.cacheSize;
1704 ATRACE_BEGIN("manual");
1707 auto path = create_data_media_path(uuid_, userId);
1708 char *argv[] = { (char*) path.c_str(), nullptr };
1709 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL))) {
1710 return error("Failed to fts_open " + path);
1712 while ((p = fts_read(fts)) != NULL) {
1714 int64_t size = (p->fts_statp->st_blocks * 512);
1715 switch (p->fts_info) {
1717 // Only categorize files not belonging to apps
1718 if (p->fts_parent->fts_number == 0) {
1719 ext = strrchr(p->fts_name, '.');
1720 if (ext != nullptr) {
1721 switch (MatchExtension(++ext)) {
1722 case AID_MEDIA_AUDIO: audioSize += size; break;
1723 case AID_MEDIA_VIDEO: videoSize += size; break;
1724 case AID_MEDIA_IMAGE: imageSize += size; break;
1728 // Fall through to always count against total
1730 // Ignore data belonging to specific apps
1731 p->fts_number = p->fts_parent->fts_number;
1732 if (p->fts_level == 1 && !strcmp(p->fts_name, "Android")) {
1738 if (p->fts_parent->fts_number == 1) {
1749 std::vector<int64_t> ret;
1750 ret.push_back(totalSize);
1751 ret.push_back(audioSize);
1752 ret.push_back(videoSize);
1753 ret.push_back(imageSize);
1754 ret.push_back(appSize);
1756 LOG(DEBUG) << "Final result " << toString(ret);
1758 *_aidl_return = ret;
1762 binder::Status InstalldNativeService::setAppQuota(const std::unique_ptr<std::string>& uuid,
1763 int32_t userId, int32_t appId, int64_t cacheQuota) {
1764 ENFORCE_UID(AID_SYSTEM);
1765 CHECK_ARGUMENT_UUID(uuid);
1766 std::lock_guard<std::recursive_mutex> lock(mQuotasLock);
1768 int32_t uid = multiuser_get_uid(userId, appId);
1769 mCacheQuotas[uid] = cacheQuota;
1774 // Dumps the contents of a profile file, using pkgname's dex files for pretty
1775 // printing the result.
1776 binder::Status InstalldNativeService::dumpProfiles(int32_t uid, const std::string& packageName,
1777 const std::string& codePaths, bool* _aidl_return) {
1778 ENFORCE_UID(AID_SYSTEM);
1779 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
1780 std::lock_guard<std::recursive_mutex> lock(mLock);
1782 const char* pkgname = packageName.c_str();
1783 const char* code_paths = codePaths.c_str();
1785 *_aidl_return = dump_profiles(uid, pkgname, code_paths);
1789 // TODO: Consider returning error codes.
1790 binder::Status InstalldNativeService::mergeProfiles(int32_t uid, const std::string& packageName,
1791 bool* _aidl_return) {
1792 ENFORCE_UID(AID_SYSTEM);
1793 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
1794 std::lock_guard<std::recursive_mutex> lock(mLock);
1796 *_aidl_return = analyze_primary_profiles(uid, packageName);
1800 binder::Status InstalldNativeService::dexopt(const std::string& apkPath, int32_t uid,
1801 const std::unique_ptr<std::string>& packageName, const std::string& instructionSet,
1802 int32_t dexoptNeeded, const std::unique_ptr<std::string>& outputPath, int32_t dexFlags,
1803 const std::string& compilerFilter, const std::unique_ptr<std::string>& uuid,
1804 const std::unique_ptr<std::string>& sharedLibraries,
1805 const std::unique_ptr<std::string>& seInfo) {
1806 ENFORCE_UID(AID_SYSTEM);
1807 CHECK_ARGUMENT_UUID(uuid);
1808 if (packageName && *packageName != "*") {
1809 CHECK_ARGUMENT_PACKAGE_NAME(*packageName);
1811 std::lock_guard<std::recursive_mutex> lock(mLock);
1813 const char* apk_path = apkPath.c_str();
1814 const char* pkgname = packageName ? packageName->c_str() : "*";
1815 const char* instruction_set = instructionSet.c_str();
1816 const char* oat_dir = outputPath ? outputPath->c_str() : nullptr;
1817 const char* compiler_filter = compilerFilter.c_str();
1818 const char* volume_uuid = uuid ? uuid->c_str() : nullptr;
1819 const char* shared_libraries = sharedLibraries ? sharedLibraries->c_str() : nullptr;
1820 const char* se_info = seInfo ? seInfo->c_str() : nullptr;
1821 int res = android::installd::dexopt(apk_path, uid, pkgname, instruction_set, dexoptNeeded,
1822 oat_dir, dexFlags, compiler_filter, volume_uuid, shared_libraries, se_info);
1823 return res ? error(res, "Failed to dexopt") : ok();
1826 binder::Status InstalldNativeService::markBootComplete(const std::string& instructionSet) {
1827 ENFORCE_UID(AID_SYSTEM);
1828 std::lock_guard<std::recursive_mutex> lock(mLock);
1830 const char* instruction_set = instructionSet.c_str();
1832 char boot_marker_path[PKG_PATH_MAX];
1833 sprintf(boot_marker_path,
1834 "%s/%s/%s/.booting",
1835 android_data_dir.path,
1839 ALOGV("mark_boot_complete : %s", boot_marker_path);
1840 if (unlink(boot_marker_path) != 0) {
1841 return error(StringPrintf("Failed to unlink %s", boot_marker_path));
1846 void mkinnerdirs(char* path, int basepos, mode_t mode, int uid, int gid,
1847 struct stat* statbuf)
1849 while (path[basepos] != 0) {
1850 if (path[basepos] == '/') {
1852 if (lstat(path, statbuf) < 0) {
1853 ALOGV("Making directory: %s\n", path);
1854 if (mkdir(path, mode) == 0) {
1855 chown(path, uid, gid);
1857 ALOGW("Unable to make directory %s: %s\n", path, strerror(errno));
1860 path[basepos] = '/';
1867 binder::Status InstalldNativeService::linkNativeLibraryDirectory(
1868 const std::unique_ptr<std::string>& uuid, const std::string& packageName,
1869 const std::string& nativeLibPath32, int32_t userId) {
1870 ENFORCE_UID(AID_SYSTEM);
1871 CHECK_ARGUMENT_UUID(uuid);
1872 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
1873 std::lock_guard<std::recursive_mutex> lock(mLock);
1875 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
1876 const char* pkgname = packageName.c_str();
1877 const char* asecLibDir = nativeLibPath32.c_str();
1878 struct stat s, libStat;
1879 binder::Status res = ok();
1881 auto _pkgdir = create_data_user_ce_package_path(uuid_, userId, pkgname);
1882 auto _libsymlink = _pkgdir + PKG_LIB_POSTFIX;
1884 const char* pkgdir = _pkgdir.c_str();
1885 const char* libsymlink = _libsymlink.c_str();
1887 if (stat(pkgdir, &s) < 0) {
1888 return error("Failed to stat " + _pkgdir);
1891 if (chown(pkgdir, AID_INSTALL, AID_INSTALL) < 0) {
1892 return error("Failed to chown " + _pkgdir);
1895 if (chmod(pkgdir, 0700) < 0) {
1896 res = error("Failed to chmod " + _pkgdir);
1900 if (lstat(libsymlink, &libStat) < 0) {
1901 if (errno != ENOENT) {
1902 res = error("Failed to stat " + _libsymlink);
1906 if (S_ISDIR(libStat.st_mode)) {
1907 if (delete_dir_contents(libsymlink, 1, NULL) < 0) {
1908 res = error("Failed to delete " + _libsymlink);
1911 } else if (S_ISLNK(libStat.st_mode)) {
1912 if (unlink(libsymlink) < 0) {
1913 res = error("Failed to unlink " + _libsymlink);
1919 if (symlink(asecLibDir, libsymlink) < 0) {
1920 res = error("Failed to symlink " + _libsymlink + " to " + nativeLibPath32);
1925 if (chmod(pkgdir, s.st_mode) < 0) {
1926 auto msg = "Failed to cleanup chmod " + _pkgdir;
1934 if (chown(pkgdir, s.st_uid, s.st_gid) < 0) {
1935 auto msg = "Failed to cleanup chown " + _pkgdir;
1946 static void run_idmap(const char *target_apk, const char *overlay_apk, int idmap_fd)
1948 execl(kIdMapPath, kIdMapPath, "--fd", target_apk, overlay_apk,
1949 StringPrintf("%d", idmap_fd).c_str(), (char*)NULL);
1950 PLOG(ERROR) << "execl (" << kIdMapPath << ") failed";
1953 static void run_verify_idmap(const char *target_apk, const char *overlay_apk, int idmap_fd)
1955 execl(kIdMapPath, kIdMapPath, "--verify", target_apk, overlay_apk,
1956 StringPrintf("%d", idmap_fd).c_str(), (char*)NULL);
1957 PLOG(ERROR) << "execl (" << kIdMapPath << ") failed";
1960 static bool delete_stale_idmap(const char* target_apk, const char* overlay_apk,
1961 const char* idmap_path, int32_t uid) {
1962 int idmap_fd = open(idmap_path, O_RDWR);
1964 PLOG(ERROR) << "idmap open failed: " << idmap_path;
1972 /* child -- drop privileges before continuing */
1973 if (setgid(uid) != 0) {
1974 LOG(ERROR) << "setgid(" << uid << ") failed during idmap";
1977 if (setuid(uid) != 0) {
1978 LOG(ERROR) << "setuid(" << uid << ") failed during idmap";
1981 if (flock(idmap_fd, LOCK_EX | LOCK_NB) != 0) {
1982 PLOG(ERROR) << "flock(" << idmap_path << ") failed during idmap";
1986 run_verify_idmap(target_apk, overlay_apk, idmap_fd);
1987 exit(1); /* only if exec call to deleting stale idmap failed */
1989 int status = wait_child(pid);
1993 // Failed on verifying if idmap is made from target_apk and overlay_apk.
1994 LOG(DEBUG) << "delete stale idmap: " << idmap_path;
2002 // Transform string /a/b/c.apk to (prefix)/a@b@c.apk@(suffix)
2003 // eg /a/b/c.apk to /data/resource-cache/a@b@c.apk@idmap
2004 static int flatten_path(const char *prefix, const char *suffix,
2005 const char *overlay_path, char *idmap_path, size_t N)
2007 if (overlay_path == NULL || idmap_path == NULL) {
2010 const size_t len_overlay_path = strlen(overlay_path);
2011 // will access overlay_path + 1 further below; requires absolute path
2012 if (len_overlay_path < 2 || *overlay_path != '/') {
2015 const size_t len_idmap_root = strlen(prefix);
2016 const size_t len_suffix = strlen(suffix);
2017 if (SIZE_MAX - len_idmap_root < len_overlay_path ||
2018 SIZE_MAX - (len_idmap_root + len_overlay_path) < len_suffix) {
2019 // additions below would cause overflow
2022 if (N < len_idmap_root + len_overlay_path + len_suffix) {
2025 memset(idmap_path, 0, N);
2026 snprintf(idmap_path, N, "%s%s%s", prefix, overlay_path + 1, suffix);
2027 char *ch = idmap_path + len_idmap_root;
2028 while (*ch != '\0') {
2037 binder::Status InstalldNativeService::idmap(const std::string& targetApkPath,
2038 const std::string& overlayApkPath, int32_t uid) {
2039 ENFORCE_UID(AID_SYSTEM);
2040 std::lock_guard<std::recursive_mutex> lock(mLock);
2042 const char* target_apk = targetApkPath.c_str();
2043 const char* overlay_apk = overlayApkPath.c_str();
2044 ALOGV("idmap target_apk=%s overlay_apk=%s uid=%d\n", target_apk, overlay_apk, uid);
2047 char idmap_path[PATH_MAX];
2048 struct stat idmap_stat;
2049 bool outdated = false;
2051 if (flatten_path(IDMAP_PREFIX, IDMAP_SUFFIX, overlay_apk,
2052 idmap_path, sizeof(idmap_path)) == -1) {
2053 ALOGE("idmap cannot generate idmap path for overlay %s\n", overlay_apk);
2057 if (stat(idmap_path, &idmap_stat) < 0) {
2060 outdated = delete_stale_idmap(target_apk, overlay_apk, idmap_path, uid);
2064 idmap_fd = open(idmap_path, O_RDWR | O_CREAT | O_EXCL, 0644);
2066 idmap_fd = open(idmap_path, O_RDWR);
2070 ALOGE("idmap cannot open '%s' for output: %s\n", idmap_path, strerror(errno));
2073 if (fchown(idmap_fd, AID_SYSTEM, uid) < 0) {
2074 ALOGE("idmap cannot chown '%s'\n", idmap_path);
2077 if (fchmod(idmap_fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) {
2078 ALOGE("idmap cannot chmod '%s'\n", idmap_path);
2090 /* child -- drop privileges before continuing */
2091 if (setgid(uid) != 0) {
2092 ALOGE("setgid(%d) failed during idmap\n", uid);
2095 if (setuid(uid) != 0) {
2096 ALOGE("setuid(%d) failed during idmap\n", uid);
2099 if (flock(idmap_fd, LOCK_EX | LOCK_NB) != 0) {
2100 ALOGE("flock(%s) failed during idmap: %s\n", idmap_path, strerror(errno));
2104 run_idmap(target_apk, overlay_apk, idmap_fd);
2105 exit(1); /* only if exec call to idmap failed */
2107 int status = wait_child(pid);
2109 ALOGE("idmap failed, status=0x%04x\n", status);
2117 if (idmap_fd >= 0) {
2124 binder::Status InstalldNativeService::removeIdmap(const std::string& overlayApkPath) {
2125 const char* overlay_apk = overlayApkPath.c_str();
2126 char idmap_path[PATH_MAX];
2128 if (flatten_path(IDMAP_PREFIX, IDMAP_SUFFIX, overlay_apk,
2129 idmap_path, sizeof(idmap_path)) == -1) {
2130 ALOGE("idmap cannot generate idmap path for overlay %s\n", overlay_apk);
2133 if (unlink(idmap_path) < 0) {
2134 ALOGE("couldn't unlink idmap file %s\n", idmap_path);
2140 binder::Status InstalldNativeService::restoreconAppData(const std::unique_ptr<std::string>& uuid,
2141 const std::string& packageName, int32_t userId, int32_t flags, int32_t appId,
2142 const std::string& seInfo) {
2143 ENFORCE_UID(AID_SYSTEM);
2144 CHECK_ARGUMENT_UUID(uuid);
2145 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
2146 std::lock_guard<std::recursive_mutex> lock(mLock);
2148 binder::Status res = ok();
2150 // SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here.
2151 unsigned int seflags = SELINUX_ANDROID_RESTORECON_RECURSE;
2152 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
2153 const char* pkgName = packageName.c_str();
2154 const char* seinfo = seInfo.c_str();
2156 uid_t uid = multiuser_get_uid(userId, appId);
2157 if (flags & FLAG_STORAGE_CE) {
2158 auto path = create_data_user_ce_package_path(uuid_, userId, pkgName);
2159 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
2160 res = error("restorecon failed for " + path);
2163 if (flags & FLAG_STORAGE_DE) {
2164 auto path = create_data_user_de_package_path(uuid_, userId, pkgName);
2165 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) {
2166 res = error("restorecon failed for " + path);
2172 binder::Status InstalldNativeService::createOatDir(const std::string& oatDir,
2173 const std::string& instructionSet) {
2174 ENFORCE_UID(AID_SYSTEM);
2175 std::lock_guard<std::recursive_mutex> lock(mLock);
2177 const char* oat_dir = oatDir.c_str();
2178 const char* instruction_set = instructionSet.c_str();
2179 char oat_instr_dir[PKG_PATH_MAX];
2181 if (validate_apk_path(oat_dir)) {
2182 return error("Invalid path " + oatDir);
2184 if (fs_prepare_dir(oat_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
2185 return error("Failed to prepare " + oatDir);
2187 if (selinux_android_restorecon(oat_dir, 0)) {
2188 return error("Failed to restorecon " + oatDir);
2190 snprintf(oat_instr_dir, PKG_PATH_MAX, "%s/%s", oat_dir, instruction_set);
2191 if (fs_prepare_dir(oat_instr_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) {
2192 return error(StringPrintf("Failed to prepare %s", oat_instr_dir));
2197 binder::Status InstalldNativeService::rmPackageDir(const std::string& packageDir) {
2198 ENFORCE_UID(AID_SYSTEM);
2199 std::lock_guard<std::recursive_mutex> lock(mLock);
2201 if (validate_apk_path(packageDir.c_str())) {
2202 return error("Invalid path " + packageDir);
2204 if (delete_dir_contents_and_dir(packageDir) != 0) {
2205 return error("Failed to delete " + packageDir);
2210 binder::Status InstalldNativeService::linkFile(const std::string& relativePath,
2211 const std::string& fromBase, const std::string& toBase) {
2212 ENFORCE_UID(AID_SYSTEM);
2213 std::lock_guard<std::recursive_mutex> lock(mLock);
2215 const char* relative_path = relativePath.c_str();
2216 const char* from_base = fromBase.c_str();
2217 const char* to_base = toBase.c_str();
2218 char from_path[PKG_PATH_MAX];
2219 char to_path[PKG_PATH_MAX];
2220 snprintf(from_path, PKG_PATH_MAX, "%s/%s", from_base, relative_path);
2221 snprintf(to_path, PKG_PATH_MAX, "%s/%s", to_base, relative_path);
2223 if (validate_apk_path_subdirs(from_path)) {
2224 return error(StringPrintf("Invalid from path %s", from_path));
2227 if (validate_apk_path_subdirs(to_path)) {
2228 return error(StringPrintf("Invalid to path %s", to_path));
2231 if (link(from_path, to_path) < 0) {
2232 return error(StringPrintf("Failed to link from %s to %s", from_path, to_path));
2238 binder::Status InstalldNativeService::moveAb(const std::string& apkPath,
2239 const std::string& instructionSet, const std::string& outputPath) {
2240 ENFORCE_UID(AID_SYSTEM);
2241 std::lock_guard<std::recursive_mutex> lock(mLock);
2243 const char* apk_path = apkPath.c_str();
2244 const char* instruction_set = instructionSet.c_str();
2245 const char* oat_dir = outputPath.c_str();
2247 bool success = move_ab(apk_path, instruction_set, oat_dir);
2248 return success ? ok() : error();
2251 binder::Status InstalldNativeService::deleteOdex(const std::string& apkPath,
2252 const std::string& instructionSet, const std::string& outputPath) {
2253 ENFORCE_UID(AID_SYSTEM);
2254 std::lock_guard<std::recursive_mutex> lock(mLock);
2256 const char* apk_path = apkPath.c_str();
2257 const char* instruction_set = instructionSet.c_str();
2258 const char* oat_dir = outputPath.c_str();
2260 bool res = delete_odex(apk_path, instruction_set, oat_dir);
2261 return res ? ok() : error();
2264 binder::Status InstalldNativeService::reconcileSecondaryDexFile(
2265 const std::string& dexPath, const std::string& packageName, int32_t uid,
2266 const std::vector<std::string>& isas, const std::unique_ptr<std::string>& volumeUuid,
2267 int32_t storage_flag, bool* _aidl_return) {
2268 ENFORCE_UID(AID_SYSTEM);
2269 CHECK_ARGUMENT_UUID(volumeUuid);
2270 CHECK_ARGUMENT_PACKAGE_NAME(packageName);
2272 std::lock_guard<std::recursive_mutex> lock(mLock);
2273 bool result = android::installd::reconcile_secondary_dex_file(
2274 dexPath, packageName, uid, isas, volumeUuid, storage_flag, _aidl_return);
2275 return result ? ok() : error();
2278 binder::Status InstalldNativeService::invalidateMounts() {
2279 ENFORCE_UID(AID_SYSTEM);
2280 std::lock_guard<std::recursive_mutex> lock(mMountsLock);
2282 mStorageMounts.clear();
2283 mQuotaReverseMounts.clear();
2285 std::ifstream in("/proc/mounts");
2286 if (!in.is_open()) {
2287 return error("Failed to read mounts");
2292 std::string ignored;
2294 std::getline(in, source, ' ');
2295 std::getline(in, target, ' ');
2296 std::getline(in, ignored);
2298 #if !BYPASS_SDCARDFS
2299 if (target.compare(0, 21, "/mnt/runtime/default/") == 0) {
2300 LOG(DEBUG) << "Found storage mount " << source << " at " << target;
2301 mStorageMounts[source] = target;
2306 if (source.compare(0, 11, "/dev/block/") == 0) {
2308 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), source.c_str(), 0,
2309 reinterpret_cast<char*>(&dq)) == 0) {
2310 LOG(DEBUG) << "Found quota mount " << source << " at " << target;
2311 mQuotaReverseMounts[target] = source;
2313 // ext4 only enables DQUOT_USAGE_ENABLED by default, so we
2314 // need to kick it again to enable DQUOT_LIMITS_ENABLED.
2315 if (quotactl(QCMD(Q_QUOTAON, USRQUOTA), source.c_str(), QFMT_VFS_V1, nullptr) != 0
2316 && errno != EBUSY) {
2317 PLOG(ERROR) << "Failed to enable USRQUOTA on " << source;
2319 if (quotactl(QCMD(Q_QUOTAON, GRPQUOTA), source.c_str(), QFMT_VFS_V1, nullptr) != 0
2320 && errno != EBUSY) {
2321 PLOG(ERROR) << "Failed to enable GRPQUOTA on " << source;
2330 std::string InstalldNativeService::findDataMediaPath(
2331 const std::unique_ptr<std::string>& uuid, userid_t userid) {
2332 std::lock_guard<std::recursive_mutex> lock(mMountsLock);
2333 const char* uuid_ = uuid ? uuid->c_str() : nullptr;
2334 auto path = StringPrintf("%s/media", create_data_path(uuid_).c_str());
2335 auto resolved = mStorageMounts[path];
2336 if (resolved.empty()) {
2337 LOG(WARNING) << "Failed to find storage mount for " << path;
2340 return StringPrintf("%s/%u", resolved.c_str(), userid);
2343 std::string InstalldNativeService::findQuotaDeviceForUuid(
2344 const std::unique_ptr<std::string>& uuid) {
2345 std::lock_guard<std::recursive_mutex> lock(mMountsLock);
2346 auto path = create_data_path(uuid ? uuid->c_str() : nullptr);
2347 return mQuotaReverseMounts[path];
2350 binder::Status InstalldNativeService::isQuotaSupported(
2351 const std::unique_ptr<std::string>& volumeUuid, bool* _aidl_return) {
2352 *_aidl_return = !findQuotaDeviceForUuid(volumeUuid).empty();
2356 } // namespace installd
2357 } // namespace android