InstalldNativeService.cpp revision 466459b68da52edf20962c3c80e2fe0325569c18
1/* 2** Copyright 2008, The Android Open Source Project 3** 4** Licensed under the Apache License, Version 2.0 (the "License"); 5** you may not use this file except in compliance with the License. 6** You may obtain a copy of the License at 7** 8** http://www.apache.org/licenses/LICENSE-2.0 9** 10** Unless required by applicable law or agreed to in writing, software 11** distributed under the License is distributed on an "AS IS" BASIS, 12** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13** See the License for the specific language governing permissions and 14** limitations under the License. 15*/ 16 17#include "InstalldNativeService.h" 18 19#define ATRACE_TAG ATRACE_TAG_PACKAGE_MANAGER 20 21#include <errno.h> 22#include <inttypes.h> 23#include <fstream> 24#include <fts.h> 25#include <regex> 26#include <stdlib.h> 27#include <string.h> 28#include <sys/capability.h> 29#include <sys/file.h> 30#include <sys/resource.h> 31#include <sys/quota.h> 32#include <sys/stat.h> 33#include <sys/statvfs.h> 34#include <sys/types.h> 35#include <sys/wait.h> 36#include <sys/xattr.h> 37#include <unistd.h> 38 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> 52 53#include "dexopt.h" 54#include "globals.h" 55#include "installd_deps.h" 56#include "otapreopt_utils.h" 57#include "utils.h" 58 59#include "MatchExtensionGen.h" 60 61#ifndef LOG_TAG 62#define LOG_TAG "installd" 63#endif 64 65using android::base::StringPrintf; 66using std::endl; 67 68namespace android { 69namespace installd { 70 71static constexpr const char* kCpPath = "/system/bin/cp"; 72static constexpr const char* kXattrDefault = "user.default"; 73 74static constexpr const char* PKG_LIB_POSTFIX = "/lib"; 75static constexpr const char* CACHE_DIR_POSTFIX = "/cache"; 76static constexpr const char* CODE_CACHE_DIR_POSTFIX = "/code_cache"; 77 78static constexpr const char* IDMAP_PREFIX = "/data/resource-cache/"; 79static constexpr const char* IDMAP_SUFFIX = "@idmap"; 80 81// NOTE: keep in sync with StorageManager 82static constexpr int FLAG_STORAGE_DE = 1 << 0; 83static constexpr int FLAG_STORAGE_CE = 1 << 1; 84 85// NOTE: keep in sync with Installer 86static constexpr int FLAG_CLEAR_CACHE_ONLY = 1 << 8; 87static constexpr int FLAG_CLEAR_CODE_CACHE_ONLY = 1 << 9; 88static constexpr int FLAG_USE_QUOTA = 1 << 12; 89 90#define MIN_RESTRICTED_HOME_SDK_VERSION 24 // > M 91namespace { 92 93constexpr const char* kDump = "android.permission.DUMP"; 94 95static binder::Status ok() { 96 return binder::Status::ok(); 97} 98 99static binder::Status exception(uint32_t code, const std::string& msg) { 100 return binder::Status::fromExceptionCode(code, String8(msg.c_str())); 101} 102 103static binder::Status error() { 104 return binder::Status::fromServiceSpecificError(errno); 105} 106 107static binder::Status error(const std::string& msg) { 108 PLOG(ERROR) << msg; 109 return binder::Status::fromServiceSpecificError(errno, String8(msg.c_str())); 110} 111 112static binder::Status error(uint32_t code, const std::string& msg) { 113 LOG(ERROR) << msg << " (" << code << ")"; 114 return binder::Status::fromServiceSpecificError(code, String8(msg.c_str())); 115} 116 117binder::Status checkPermission(const char* permission) { 118 pid_t pid; 119 uid_t uid; 120 121 if (checkCallingPermission(String16(permission), reinterpret_cast<int32_t*>(&pid), 122 reinterpret_cast<int32_t*>(&uid))) { 123 return ok(); 124 } else { 125 return exception(binder::Status::EX_SECURITY, 126 StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, permission)); 127 } 128} 129 130binder::Status checkUid(uid_t expectedUid) { 131 uid_t uid = IPCThreadState::self()->getCallingUid(); 132 if (uid == expectedUid || uid == AID_ROOT) { 133 return ok(); 134 } else { 135 return exception(binder::Status::EX_SECURITY, 136 StringPrintf("UID %d is not expected UID %d", uid, expectedUid)); 137 } 138} 139 140binder::Status checkArgumentUuid(const std::unique_ptr<std::string>& uuid) { 141 if (!uuid || is_valid_filename(*uuid)) { 142 return ok(); 143 } else { 144 return exception(binder::Status::EX_ILLEGAL_ARGUMENT, 145 StringPrintf("UUID %s is malformed", uuid->c_str())); 146 } 147} 148 149binder::Status checkArgumentPackageName(const std::string& packageName) { 150 if (is_valid_package_name(packageName.c_str())) { 151 return ok(); 152 } else { 153 return exception(binder::Status::EX_ILLEGAL_ARGUMENT, 154 StringPrintf("Package name %s is malformed", packageName.c_str())); 155 } 156} 157 158#define ENFORCE_UID(uid) { \ 159 binder::Status status = checkUid((uid)); \ 160 if (!status.isOk()) { \ 161 return status; \ 162 } \ 163} 164 165#define CHECK_ARGUMENT_UUID(uuid) { \ 166 binder::Status status = checkArgumentUuid((uuid)); \ 167 if (!status.isOk()) { \ 168 return status; \ 169 } \ 170} 171 172#define CHECK_ARGUMENT_PACKAGE_NAME(packageName) { \ 173 binder::Status status = \ 174 checkArgumentPackageName((packageName)); \ 175 if (!status.isOk()) { \ 176 return status; \ 177 } \ 178} 179 180} // namespace 181 182status_t InstalldNativeService::start() { 183 IPCThreadState::self()->disableBackgroundScheduling(true); 184 status_t ret = BinderService<InstalldNativeService>::publish(); 185 if (ret != android::OK) { 186 return ret; 187 } 188 sp<ProcessState> ps(ProcessState::self()); 189 ps->startThreadPool(); 190 ps->giveThreadPoolName(); 191 return android::OK; 192} 193 194status_t InstalldNativeService::dump(int fd, const Vector<String16> & /* args */) { 195 auto out = std::fstream(StringPrintf("/proc/self/fd/%d", fd)); 196 const binder::Status dump_permission = checkPermission(kDump); 197 if (!dump_permission.isOk()) { 198 out << dump_permission.toString8() << endl; 199 return PERMISSION_DENIED; 200 } 201 std::lock_guard<std::recursive_mutex> lock(mLock); 202 203 out << "installd is happy!" << endl << endl; 204 out << "Devices with quota support:" << endl; 205 for (const auto& n : mQuotaDevices) { 206 out << " " << n.first << " = " << n.second << endl; 207 } 208 out << endl; 209 out.flush(); 210 211 return NO_ERROR; 212} 213 214/** 215 * Perform restorecon of the given path, but only perform recursive restorecon 216 * if the label of that top-level file actually changed. This can save us 217 * significant time by avoiding no-op traversals of large filesystem trees. 218 */ 219static int restorecon_app_data_lazy(const std::string& path, const std::string& seInfo, uid_t uid, 220 bool existing) { 221 int res = 0; 222 char* before = nullptr; 223 char* after = nullptr; 224 225 // Note that SELINUX_ANDROID_RESTORECON_DATADATA flag is set by 226 // libselinux. Not needed here. 227 228 if (lgetfilecon(path.c_str(), &before) < 0) { 229 PLOG(ERROR) << "Failed before getfilecon for " << path; 230 goto fail; 231 } 232 if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 0) < 0) { 233 PLOG(ERROR) << "Failed top-level restorecon for " << path; 234 goto fail; 235 } 236 if (lgetfilecon(path.c_str(), &after) < 0) { 237 PLOG(ERROR) << "Failed after getfilecon for " << path; 238 goto fail; 239 } 240 241 // If the initial top-level restorecon above changed the label, then go 242 // back and restorecon everything recursively 243 if (strcmp(before, after)) { 244 if (existing) { 245 LOG(DEBUG) << "Detected label change from " << before << " to " << after << " at " 246 << path << "; running recursive restorecon"; 247 } 248 if (selinux_android_restorecon_pkgdir(path.c_str(), seInfo.c_str(), uid, 249 SELINUX_ANDROID_RESTORECON_RECURSE) < 0) { 250 PLOG(ERROR) << "Failed recursive restorecon for " << path; 251 goto fail; 252 } 253 } 254 255 goto done; 256fail: 257 res = -1; 258done: 259 free(before); 260 free(after); 261 return res; 262} 263 264static int restorecon_app_data_lazy(const std::string& parent, const char* name, 265 const std::string& seInfo, uid_t uid, bool existing) { 266 return restorecon_app_data_lazy(StringPrintf("%s/%s", parent.c_str(), name), seInfo, uid, 267 existing); 268} 269 270static int prepare_app_dir(const std::string& path, mode_t target_mode, uid_t uid) { 271 if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, uid) != 0) { 272 PLOG(ERROR) << "Failed to prepare " << path; 273 return -1; 274 } 275 return 0; 276} 277 278/** 279 * Prepare an app cache directory, which offers to fix-up the GID and 280 * directory mode flags during a platform upgrade. 281 */ 282static int prepare_app_cache_dir(const std::string& parent, const char* name, mode_t target_mode, 283 uid_t uid, gid_t gid) { 284 auto path = StringPrintf("%s/%s", parent.c_str(), name); 285 struct stat st; 286 if (stat(path.c_str(), &st) != 0) { 287 if (errno == ENOENT) { 288 // This is fine, just create it 289 if (fs_prepare_dir_strict(path.c_str(), target_mode, uid, gid) != 0) { 290 PLOG(ERROR) << "Failed to prepare " << path; 291 return -1; 292 } else { 293 return 0; 294 } 295 } else { 296 PLOG(ERROR) << "Failed to stat " << path; 297 return -1; 298 } 299 } 300 301 mode_t actual_mode = st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO | S_ISGID); 302 if (st.st_uid != uid) { 303 // Mismatched UID is real trouble; we can't recover 304 LOG(ERROR) << "Mismatched UID at " << path << ": found " << st.st_uid 305 << " but expected " << uid; 306 return -1; 307 } else if (st.st_gid == gid && actual_mode == target_mode) { 308 // Everything looks good! 309 return 0; 310 } 311 312 // Directory is owned correctly, but GID or mode mismatch means it's 313 // probably a platform upgrade so we need to fix them 314 FTS *fts; 315 FTSENT *p; 316 char *argv[] = { (char*) path.c_str(), nullptr }; 317 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_XDEV, NULL))) { 318 PLOG(ERROR) << "Failed to fts_open " << path; 319 return -1; 320 } 321 while ((p = fts_read(fts)) != NULL) { 322 switch (p->fts_info) { 323 case FTS_DP: 324 if (chmod(p->fts_accpath, target_mode) != 0) { 325 PLOG(WARNING) << "Failed to chmod " << p->fts_path; 326 } 327 // Intentional fall through to also set GID 328 case FTS_F: 329 if (chown(p->fts_accpath, -1, gid) != 0) { 330 PLOG(WARNING) << "Failed to chown " << p->fts_path; 331 } 332 break; 333 case FTS_SL: 334 case FTS_SLNONE: 335 if (lchown(p->fts_accpath, -1, gid) != 0) { 336 PLOG(WARNING) << "Failed to chown " << p->fts_path; 337 } 338 break; 339 } 340 } 341 fts_close(fts); 342 return 0; 343} 344 345binder::Status InstalldNativeService::createAppData(const std::unique_ptr<std::string>& uuid, 346 const std::string& packageName, int32_t userId, int32_t flags, int32_t appId, 347 const std::string& seInfo, int32_t targetSdkVersion, int64_t* _aidl_return) { 348 ENFORCE_UID(AID_SYSTEM); 349 CHECK_ARGUMENT_UUID(uuid); 350 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 351 std::lock_guard<std::recursive_mutex> lock(mLock); 352 353 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 354 const char* pkgname = packageName.c_str(); 355 356 // Assume invalid inode unless filled in below 357 if (_aidl_return != nullptr) *_aidl_return = -1; 358 359 int32_t uid = multiuser_get_uid(userId, appId); 360 int32_t cacheGid = multiuser_get_cache_gid(userId, appId); 361 mode_t targetMode = targetSdkVersion >= MIN_RESTRICTED_HOME_SDK_VERSION ? 0700 : 0751; 362 363 // If UID doesn't have a specific cache GID, use UID value 364 if (cacheGid == -1) { 365 cacheGid = uid; 366 } 367 368 if (flags & FLAG_STORAGE_CE) { 369 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname); 370 bool existing = (access(path.c_str(), F_OK) == 0); 371 372 if (prepare_app_dir(path, targetMode, uid) || 373 prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) || 374 prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) { 375 return error("Failed to prepare " + path); 376 } 377 378 // Consider restorecon over contents if label changed 379 if (restorecon_app_data_lazy(path, seInfo, uid, existing) || 380 restorecon_app_data_lazy(path, "cache", seInfo, uid, existing) || 381 restorecon_app_data_lazy(path, "code_cache", seInfo, uid, existing)) { 382 return error("Failed to restorecon " + path); 383 } 384 385 // Remember inode numbers of cache directories so that we can clear 386 // contents while CE storage is locked 387 if (write_path_inode(path, "cache", kXattrInodeCache) || 388 write_path_inode(path, "code_cache", kXattrInodeCodeCache)) { 389 return error("Failed to write_path_inode for " + path); 390 } 391 392 // And return the CE inode of the top-level data directory so we can 393 // clear contents while CE storage is locked 394 if ((_aidl_return != nullptr) 395 && get_path_inode(path, reinterpret_cast<ino_t*>(_aidl_return)) != 0) { 396 return error("Failed to get_path_inode for " + path); 397 } 398 } 399 if (flags & FLAG_STORAGE_DE) { 400 auto path = create_data_user_de_package_path(uuid_, userId, pkgname); 401 bool existing = (access(path.c_str(), F_OK) == 0); 402 403 if (prepare_app_dir(path, targetMode, uid) || 404 prepare_app_cache_dir(path, "cache", 02771, uid, cacheGid) || 405 prepare_app_cache_dir(path, "code_cache", 02771, uid, cacheGid)) { 406 return error("Failed to prepare " + path); 407 } 408 409 // Consider restorecon over contents if label changed 410 if (restorecon_app_data_lazy(path, seInfo, uid, existing)) { 411 return error("Failed to restorecon " + path); 412 } 413 414 if (property_get_bool("dalvik.vm.usejitprofiles", false)) { 415 const std::string profile_path = create_data_user_profile_package_path(userId, pkgname); 416 // read-write-execute only for the app user. 417 if (fs_prepare_dir_strict(profile_path.c_str(), 0700, uid, uid) != 0) { 418 return error("Failed to prepare " + profile_path); 419 } 420 std::string profile_file = create_primary_profile(profile_path); 421 // read-write only for the app user. 422 if (fs_prepare_file_strict(profile_file.c_str(), 0600, uid, uid) != 0) { 423 return error("Failed to prepare " + profile_path); 424 } 425 const std::string ref_profile_path = create_data_ref_profile_package_path(pkgname); 426 // dex2oat/profman runs under the shared app gid and it needs to read/write reference 427 // profiles. 428 int shared_app_gid = multiuser_get_shared_gid(0, appId); 429 if ((shared_app_gid != -1) && fs_prepare_dir_strict( 430 ref_profile_path.c_str(), 0700, shared_app_gid, shared_app_gid) != 0) { 431 return error("Failed to prepare " + ref_profile_path); 432 } 433 } 434 } 435 return ok(); 436} 437 438binder::Status InstalldNativeService::migrateAppData(const std::unique_ptr<std::string>& uuid, 439 const std::string& packageName, int32_t userId, int32_t flags) { 440 ENFORCE_UID(AID_SYSTEM); 441 CHECK_ARGUMENT_UUID(uuid); 442 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 443 std::lock_guard<std::recursive_mutex> lock(mLock); 444 445 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 446 const char* pkgname = packageName.c_str(); 447 448 // This method only exists to upgrade system apps that have requested 449 // forceDeviceEncrypted, so their default storage always lives in a 450 // consistent location. This only works on non-FBE devices, since we 451 // never want to risk exposing data on a device with real CE/DE storage. 452 453 auto ce_path = create_data_user_ce_package_path(uuid_, userId, pkgname); 454 auto de_path = create_data_user_de_package_path(uuid_, userId, pkgname); 455 456 // If neither directory is marked as default, assume CE is default 457 if (getxattr(ce_path.c_str(), kXattrDefault, nullptr, 0) == -1 458 && getxattr(de_path.c_str(), kXattrDefault, nullptr, 0) == -1) { 459 if (setxattr(ce_path.c_str(), kXattrDefault, nullptr, 0, 0) != 0) { 460 return error("Failed to mark default storage " + ce_path); 461 } 462 } 463 464 // Migrate default data location if needed 465 auto target = (flags & FLAG_STORAGE_DE) ? de_path : ce_path; 466 auto source = (flags & FLAG_STORAGE_DE) ? ce_path : de_path; 467 468 if (getxattr(target.c_str(), kXattrDefault, nullptr, 0) == -1) { 469 LOG(WARNING) << "Requested default storage " << target 470 << " is not active; migrating from " << source; 471 if (delete_dir_contents_and_dir(target) != 0) { 472 return error("Failed to delete " + target); 473 } 474 if (rename(source.c_str(), target.c_str()) != 0) { 475 return error("Failed to rename " + source + " to " + target); 476 } 477 } 478 479 return ok(); 480} 481 482 483binder::Status InstalldNativeService::clearAppProfiles(const std::string& packageName) { 484 ENFORCE_UID(AID_SYSTEM); 485 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 486 std::lock_guard<std::recursive_mutex> lock(mLock); 487 488 const char* pkgname = packageName.c_str(); 489 binder::Status res = ok(); 490 if (!clear_reference_profile(pkgname)) { 491 res = error("Failed to clear reference profile for " + packageName); 492 } 493 if (!clear_current_profiles(pkgname)) { 494 res = error("Failed to clear current profiles for " + packageName); 495 } 496 return res; 497} 498 499binder::Status InstalldNativeService::clearAppData(const std::unique_ptr<std::string>& uuid, 500 const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) { 501 ENFORCE_UID(AID_SYSTEM); 502 CHECK_ARGUMENT_UUID(uuid); 503 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 504 std::lock_guard<std::recursive_mutex> lock(mLock); 505 506 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 507 const char* pkgname = packageName.c_str(); 508 509 binder::Status res = ok(); 510 if (flags & FLAG_STORAGE_CE) { 511 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode); 512 if (flags & FLAG_CLEAR_CACHE_ONLY) { 513 path = read_path_inode(path, "cache", kXattrInodeCache); 514 } else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) { 515 path = read_path_inode(path, "code_cache", kXattrInodeCodeCache); 516 } 517 if (access(path.c_str(), F_OK) == 0) { 518 if (delete_dir_contents(path) != 0) { 519 res = error("Failed to delete contents of " + path); 520 } 521 } 522 } 523 if (flags & FLAG_STORAGE_DE) { 524 std::string suffix = ""; 525 bool only_cache = false; 526 if (flags & FLAG_CLEAR_CACHE_ONLY) { 527 suffix = CACHE_DIR_POSTFIX; 528 only_cache = true; 529 } else if (flags & FLAG_CLEAR_CODE_CACHE_ONLY) { 530 suffix = CODE_CACHE_DIR_POSTFIX; 531 only_cache = true; 532 } 533 534 auto path = create_data_user_de_package_path(uuid_, userId, pkgname) + suffix; 535 if (access(path.c_str(), F_OK) == 0) { 536 if (delete_dir_contents(path) != 0) { 537 res = error("Failed to delete contents of " + path); 538 } 539 } 540 if (!only_cache) { 541 if (!clear_current_profile(pkgname, userId)) { 542 res = error("Failed to clear current profile for " + packageName); 543 } 544 } 545 } 546 return res; 547} 548 549static int destroy_app_reference_profile(const char *pkgname) { 550 return delete_dir_contents_and_dir( 551 create_data_ref_profile_package_path(pkgname), 552 /*ignore_if_missing*/ true); 553} 554 555static int destroy_app_current_profiles(const char *pkgname, userid_t userid) { 556 return delete_dir_contents_and_dir( 557 create_data_user_profile_package_path(userid, pkgname), 558 /*ignore_if_missing*/ true); 559} 560 561binder::Status InstalldNativeService::destroyAppProfiles(const std::string& packageName) { 562 ENFORCE_UID(AID_SYSTEM); 563 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 564 std::lock_guard<std::recursive_mutex> lock(mLock); 565 566 const char* pkgname = packageName.c_str(); 567 binder::Status res = ok(); 568 std::vector<userid_t> users = get_known_users(/*volume_uuid*/ nullptr); 569 for (auto user : users) { 570 if (destroy_app_current_profiles(pkgname, user) != 0) { 571 res = error("Failed to destroy current profiles for " + packageName); 572 } 573 } 574 if (destroy_app_reference_profile(pkgname) != 0) { 575 res = error("Failed to destroy reference profile for " + packageName); 576 } 577 return res; 578} 579 580binder::Status InstalldNativeService::destroyAppData(const std::unique_ptr<std::string>& uuid, 581 const std::string& packageName, int32_t userId, int32_t flags, int64_t ceDataInode) { 582 ENFORCE_UID(AID_SYSTEM); 583 CHECK_ARGUMENT_UUID(uuid); 584 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 585 std::lock_guard<std::recursive_mutex> lock(mLock); 586 587 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 588 const char* pkgname = packageName.c_str(); 589 590 binder::Status res = ok(); 591 if (flags & FLAG_STORAGE_CE) { 592 auto path = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInode); 593 if (delete_dir_contents_and_dir(path) != 0) { 594 res = error("Failed to delete " + path); 595 } 596 } 597 if (flags & FLAG_STORAGE_DE) { 598 auto path = create_data_user_de_package_path(uuid_, userId, pkgname); 599 if (delete_dir_contents_and_dir(path) != 0) { 600 res = error("Failed to delete " + path); 601 } 602 destroy_app_current_profiles(pkgname, userId); 603 // TODO(calin): If the package is still installed by other users it's probably 604 // beneficial to keep the reference profile around. 605 // Verify if it's ok to do that. 606 destroy_app_reference_profile(pkgname); 607 } 608 return res; 609} 610 611binder::Status InstalldNativeService::moveCompleteApp(const std::unique_ptr<std::string>& fromUuid, 612 const std::unique_ptr<std::string>& toUuid, const std::string& packageName, 613 const std::string& dataAppName, int32_t appId, const std::string& seInfo, 614 int32_t targetSdkVersion) { 615 ENFORCE_UID(AID_SYSTEM); 616 CHECK_ARGUMENT_UUID(fromUuid); 617 CHECK_ARGUMENT_UUID(toUuid); 618 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 619 std::lock_guard<std::recursive_mutex> lock(mLock); 620 621 const char* from_uuid = fromUuid ? fromUuid->c_str() : nullptr; 622 const char* to_uuid = toUuid ? toUuid->c_str() : nullptr; 623 const char* package_name = packageName.c_str(); 624 const char* data_app_name = dataAppName.c_str(); 625 626 binder::Status res = ok(); 627 std::vector<userid_t> users = get_known_users(from_uuid); 628 629 // Copy app 630 { 631 auto from = create_data_app_package_path(from_uuid, data_app_name); 632 auto to = create_data_app_package_path(to_uuid, data_app_name); 633 auto to_parent = create_data_app_path(to_uuid); 634 635 char *argv[] = { 636 (char*) kCpPath, 637 (char*) "-F", /* delete any existing destination file first (--remove-destination) */ 638 (char*) "-p", /* preserve timestamps, ownership, and permissions */ 639 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */ 640 (char*) "-P", /* Do not follow symlinks [default] */ 641 (char*) "-d", /* don't dereference symlinks */ 642 (char*) from.c_str(), 643 (char*) to_parent.c_str() 644 }; 645 646 LOG(DEBUG) << "Copying " << from << " to " << to; 647 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true); 648 if (rc != 0) { 649 res = error(rc, "Failed copying " + from + " to " + to); 650 goto fail; 651 } 652 653 if (selinux_android_restorecon(to.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE) != 0) { 654 res = error("Failed to restorecon " + to); 655 goto fail; 656 } 657 } 658 659 // Copy private data for all known users 660 for (auto user : users) { 661 662 // Data source may not exist for all users; that's okay 663 auto from_ce = create_data_user_ce_package_path(from_uuid, user, package_name); 664 if (access(from_ce.c_str(), F_OK) != 0) { 665 LOG(INFO) << "Missing source " << from_ce; 666 continue; 667 } 668 669 if (!createAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE, appId, 670 seInfo, targetSdkVersion, nullptr).isOk()) { 671 res = error("Failed to create package target"); 672 goto fail; 673 } 674 675 char *argv[] = { 676 (char*) kCpPath, 677 (char*) "-F", /* delete any existing destination file first (--remove-destination) */ 678 (char*) "-p", /* preserve timestamps, ownership, and permissions */ 679 (char*) "-R", /* recurse into subdirectories (DEST must be a directory) */ 680 (char*) "-P", /* Do not follow symlinks [default] */ 681 (char*) "-d", /* don't dereference symlinks */ 682 nullptr, 683 nullptr 684 }; 685 686 { 687 auto from = create_data_user_de_package_path(from_uuid, user, package_name); 688 auto to = create_data_user_de_path(to_uuid, user); 689 argv[6] = (char*) from.c_str(); 690 argv[7] = (char*) to.c_str(); 691 692 LOG(DEBUG) << "Copying " << from << " to " << to; 693 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true); 694 if (rc != 0) { 695 res = error(rc, "Failed copying " + from + " to " + to); 696 goto fail; 697 } 698 } 699 { 700 auto from = create_data_user_ce_package_path(from_uuid, user, package_name); 701 auto to = create_data_user_ce_path(to_uuid, user); 702 argv[6] = (char*) from.c_str(); 703 argv[7] = (char*) to.c_str(); 704 705 LOG(DEBUG) << "Copying " << from << " to " << to; 706 int rc = android_fork_execvp(ARRAY_SIZE(argv), argv, NULL, false, true); 707 if (rc != 0) { 708 res = error(rc, "Failed copying " + from + " to " + to); 709 goto fail; 710 } 711 } 712 713 if (!restoreconAppData(toUuid, packageName, user, FLAG_STORAGE_CE | FLAG_STORAGE_DE, 714 appId, seInfo).isOk()) { 715 res = error("Failed to restorecon"); 716 goto fail; 717 } 718 } 719 720 // We let the framework scan the new location and persist that before 721 // deleting the data in the old location; this ordering ensures that 722 // we can recover from things like battery pulls. 723 return ok(); 724 725fail: 726 // Nuke everything we might have already copied 727 { 728 auto to = create_data_app_package_path(to_uuid, data_app_name); 729 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) { 730 LOG(WARNING) << "Failed to rollback " << to; 731 } 732 } 733 for (auto user : users) { 734 { 735 auto to = create_data_user_de_package_path(to_uuid, user, package_name); 736 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) { 737 LOG(WARNING) << "Failed to rollback " << to; 738 } 739 } 740 { 741 auto to = create_data_user_ce_package_path(to_uuid, user, package_name); 742 if (delete_dir_contents(to.c_str(), 1, NULL) != 0) { 743 LOG(WARNING) << "Failed to rollback " << to; 744 } 745 } 746 } 747 return res; 748} 749 750binder::Status InstalldNativeService::createUserData(const std::unique_ptr<std::string>& uuid, 751 int32_t userId, int32_t userSerial ATTRIBUTE_UNUSED, int32_t flags) { 752 ENFORCE_UID(AID_SYSTEM); 753 CHECK_ARGUMENT_UUID(uuid); 754 std::lock_guard<std::recursive_mutex> lock(mLock); 755 756 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 757 if (flags & FLAG_STORAGE_DE) { 758 if (uuid_ == nullptr) { 759 if (ensure_config_user_dirs(userId) != 0) { 760 return error(StringPrintf("Failed to ensure dirs for %d", userId)); 761 } 762 } 763 } 764 return ok(); 765} 766 767binder::Status InstalldNativeService::destroyUserData(const std::unique_ptr<std::string>& uuid, 768 int32_t userId, int32_t flags) { 769 ENFORCE_UID(AID_SYSTEM); 770 CHECK_ARGUMENT_UUID(uuid); 771 std::lock_guard<std::recursive_mutex> lock(mLock); 772 773 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 774 binder::Status res = ok(); 775 if (flags & FLAG_STORAGE_DE) { 776 auto path = create_data_user_de_path(uuid_, userId); 777 if (delete_dir_contents_and_dir(path, true) != 0) { 778 res = error("Failed to delete " + path); 779 } 780 if (uuid_ == nullptr) { 781 path = create_data_misc_legacy_path(userId); 782 if (delete_dir_contents_and_dir(path, true) != 0) { 783 res = error("Failed to delete " + path); 784 } 785 path = create_data_user_profile_path(userId); 786 if (delete_dir_contents_and_dir(path, true) != 0) { 787 res = error("Failed to delete " + path); 788 } 789 } 790 } 791 if (flags & FLAG_STORAGE_CE) { 792 auto path = create_data_user_ce_path(uuid_, userId); 793 if (delete_dir_contents_and_dir(path, true) != 0) { 794 res = error("Failed to delete " + path); 795 } 796 path = create_data_media_path(uuid_, userId); 797 if (delete_dir_contents_and_dir(path, true) != 0) { 798 res = error("Failed to delete " + path); 799 } 800 } 801 return res; 802} 803 804/* Try to ensure free_size bytes of storage are available. 805 * Returns 0 on success. 806 * This is rather simple-minded because doing a full LRU would 807 * be potentially memory-intensive, and without atime it would 808 * also require that apps constantly modify file metadata even 809 * when just reading from the cache, which is pretty awful. 810 */ 811binder::Status InstalldNativeService::freeCache(const std::unique_ptr<std::string>& uuid, 812 int64_t freeStorageSize) { 813 ENFORCE_UID(AID_SYSTEM); 814 CHECK_ARGUMENT_UUID(uuid); 815 std::lock_guard<std::recursive_mutex> lock(mLock); 816 817 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 818 cache_t* cache; 819 int64_t avail; 820 821 auto data_path = create_data_path(uuid_); 822 823 avail = data_disk_free(data_path); 824 if (avail < 0) { 825 return error("Failed to determine free space for " + data_path); 826 } 827 828 ALOGI("free_cache(%" PRId64 ") avail %" PRId64 "\n", freeStorageSize, avail); 829 if (avail >= freeStorageSize) { 830 return ok(); 831 } 832 833 cache = start_cache_collection(); 834 835 auto users = get_known_users(uuid_); 836 for (auto user : users) { 837 add_cache_files(cache, create_data_user_ce_path(uuid_, user)); 838 add_cache_files(cache, create_data_user_de_path(uuid_, user)); 839 add_cache_files(cache, 840 StringPrintf("%s/Android/data", create_data_media_path(uuid_, user).c_str())); 841 } 842 843 clear_cache_files(data_path, cache, freeStorageSize); 844 finish_cache_collection(cache); 845 846 avail = data_disk_free(data_path); 847 if (avail >= freeStorageSize) { 848 return ok(); 849 } else { 850 return error(StringPrintf("Failed to free up %" PRId64 " on %s; final free space %" PRId64, 851 freeStorageSize, data_path.c_str(), avail)); 852 } 853} 854 855binder::Status InstalldNativeService::rmdex(const std::string& codePath, 856 const std::string& instructionSet) { 857 ENFORCE_UID(AID_SYSTEM); 858 std::lock_guard<std::recursive_mutex> lock(mLock); 859 860 char dex_path[PKG_PATH_MAX]; 861 862 const char* path = codePath.c_str(); 863 const char* instruction_set = instructionSet.c_str(); 864 865 if (validate_apk_path(path) && validate_system_app_path(path)) { 866 return error("Invalid path " + codePath); 867 } 868 869 if (!create_cache_path(dex_path, path, instruction_set)) { 870 return error("Failed to create cache path for " + codePath); 871 } 872 873 ALOGV("unlink %s\n", dex_path); 874 if (unlink(dex_path) < 0) { 875 return error(StringPrintf("Failed to unlink %s", dex_path)); 876 } else { 877 return ok(); 878 } 879} 880 881struct stats { 882 int64_t codeSize; 883 int64_t dataSize; 884 int64_t cacheSize; 885}; 886 887#if MEASURE_DEBUG 888static std::string toString(std::vector<int64_t> values) { 889 std::stringstream res; 890 res << "["; 891 for (size_t i = 0; i < values.size(); i++) { 892 res << values[i]; 893 if (i < values.size() - 1) { 894 res << ","; 895 } 896 } 897 res << "]"; 898 return res.str(); 899} 900#endif 901 902static void collectQuotaStats(const std::string& device, int32_t userId, 903 int32_t appId, struct stats* stats, struct stats* extStats ATTRIBUTE_UNUSED) { 904 if (device.empty()) return; 905 906 struct dqblk dq; 907 908 uid_t uid = multiuser_get_uid(userId, appId); 909 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid, 910 reinterpret_cast<char*>(&dq)) != 0) { 911 if (errno != ESRCH) { 912 PLOG(ERROR) << "Failed to quotactl " << device << " for UID " << uid; 913 } 914 } else { 915#if MEASURE_DEBUG 916 LOG(DEBUG) << "quotactl() for UID " << uid << " " << dq.dqb_curspace; 917#endif 918 stats->dataSize += dq.dqb_curspace; 919 } 920 921 int cacheGid = multiuser_get_cache_gid(userId, appId); 922 if (cacheGid != -1) { 923 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), cacheGid, 924 reinterpret_cast<char*>(&dq)) != 0) { 925 if (errno != ESRCH) { 926 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << cacheGid; 927 } 928 } else { 929#if MEASURE_DEBUG 930 LOG(DEBUG) << "quotactl() for GID " << cacheGid << " " << dq.dqb_curspace; 931#endif 932 stats->cacheSize += dq.dqb_curspace; 933 } 934 } 935 936 int sharedGid = multiuser_get_shared_app_gid(uid); 937 if (sharedGid != -1) { 938 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), sharedGid, 939 reinterpret_cast<char*>(&dq)) != 0) { 940 if (errno != ESRCH) { 941 PLOG(ERROR) << "Failed to quotactl " << device << " for GID " << sharedGid; 942 } 943 } else { 944#if MEASURE_DEBUG 945 LOG(DEBUG) << "quotactl() for GID " << sharedGid << " " << dq.dqb_curspace; 946#endif 947 stats->codeSize += dq.dqb_curspace; 948 } 949 } 950 951#if MEASURE_EXTERNAL 952 // TODO: measure using external GIDs 953#endif 954} 955 956static void collectManualStats(const std::string& path, struct stats* stats) { 957 DIR *d; 958 int dfd; 959 struct dirent *de; 960 struct stat s; 961 962 d = opendir(path.c_str()); 963 if (d == nullptr) { 964 if (errno != ENOENT) { 965 PLOG(WARNING) << "Failed to open " << path; 966 } 967 return; 968 } 969 dfd = dirfd(d); 970 while ((de = readdir(d))) { 971 const char *name = de->d_name; 972 973 int64_t size = 0; 974 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) == 0) { 975 size = s.st_blocks * 512; 976 } 977 978 if (de->d_type == DT_DIR) { 979 if (!strcmp(name, ".")) { 980 // Don't recurse, but still count node size 981 } else if (!strcmp(name, "..")) { 982 // Don't recurse or count node size 983 continue; 984 } else { 985 // Measure all children nodes 986 size = 0; 987 calculate_tree_size(StringPrintf("%s/%s", path.c_str(), name), &size); 988 } 989 990 if (!strcmp(name, "cache") || !strcmp(name, "code_cache")) { 991 stats->cacheSize += size; 992 } 993 } 994 995 // Legacy symlink isn't owned by app 996 if (de->d_type == DT_LNK && !strcmp(name, "lib")) { 997 continue; 998 } 999 1000 // Everything found inside is considered data 1001 stats->dataSize += size; 1002 } 1003 closedir(d); 1004} 1005 1006static void collectManualStatsForUser(const std::string& path, struct stats* stats, 1007 bool exclude_apps = false) { 1008 DIR *d; 1009 int dfd; 1010 struct dirent *de; 1011 struct stat s; 1012 1013 d = opendir(path.c_str()); 1014 if (d == nullptr) { 1015 if (errno != ENOENT) { 1016 PLOG(WARNING) << "Failed to open " << path; 1017 } 1018 return; 1019 } 1020 dfd = dirfd(d); 1021 while ((de = readdir(d))) { 1022 if (de->d_type == DT_DIR) { 1023 const char *name = de->d_name; 1024 if (fstatat(dfd, name, &s, AT_SYMLINK_NOFOLLOW) != 0) { 1025 continue; 1026 } 1027 if (!strcmp(name, ".") || !strcmp(name, "..")) { 1028 continue; 1029 } else if (exclude_apps && (s.st_uid >= AID_APP_START && s.st_uid <= AID_APP_END)) { 1030 continue; 1031 } else { 1032 collectManualStats(StringPrintf("%s/%s", path.c_str(), name), stats); 1033 } 1034 } 1035 } 1036 closedir(d); 1037} 1038 1039binder::Status InstalldNativeService::getAppSize(const std::unique_ptr<std::string>& uuid, 1040 const std::vector<std::string>& packageNames, int32_t userId, int32_t flags, 1041 int32_t appId, const std::vector<int64_t>& ceDataInodes, 1042 const std::vector<std::string>& codePaths, std::vector<int64_t>* _aidl_return) { 1043 ENFORCE_UID(AID_SYSTEM); 1044 CHECK_ARGUMENT_UUID(uuid); 1045 for (auto packageName : packageNames) { 1046 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 1047 } 1048 std::lock_guard<std::recursive_mutex> lock(mLock); 1049 1050 // When modifying this logic, always verify using tests: 1051 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetAppSize 1052 1053#if MEASURE_DEBUG 1054 LOG(INFO) << "Measuring user " << userId << " app " << appId; 1055#endif 1056 1057 // Here's a summary of the common storage locations across the platform, 1058 // and how they're each tagged: 1059 // 1060 // /data/app/com.example UID system 1061 // /data/app/com.example/oat UID system 1062 // /data/user/0/com.example UID u0_a10 GID u0_a10 1063 // /data/user/0/com.example/cache UID u0_a10 GID u0_a10_cache 1064 // /data/media/0/foo.txt UID u0_media_rw 1065 // /data/media/0/bar.jpg UID u0_media_rw GID u0_media_image 1066 // /data/media/0/Android/data/com.example UID u0_media_rw GID u0_a10_ext 1067 // /data/media/0/Android/data/com.example/cache UID u0_media_rw GID u0_a10_ext_cache 1068 // /data/media/obb/com.example UID system 1069 1070 struct stats stats; 1071 struct stats extStats; 1072 memset(&stats, 0, sizeof(stats)); 1073 memset(&extStats, 0, sizeof(extStats)); 1074 1075 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 1076 1077 auto device = findQuotaDeviceForUuid(uuid); 1078 if (device.empty()) { 1079 flags &= ~FLAG_USE_QUOTA; 1080 } 1081 1082 ATRACE_BEGIN("obb"); 1083 for (auto packageName : packageNames) { 1084 auto obbCodePath = create_data_media_obb_path(uuid_, packageName.c_str()); 1085 calculate_tree_size(obbCodePath, &extStats.codeSize); 1086 } 1087 ATRACE_END(); 1088 1089 if (flags & FLAG_USE_QUOTA && appId >= AID_APP_START) { 1090 ATRACE_BEGIN("code"); 1091 for (auto codePath : codePaths) { 1092 calculate_tree_size(codePath, &stats.codeSize, -1, 1093 multiuser_get_shared_gid(userId, appId)); 1094 } 1095 ATRACE_END(); 1096 1097 ATRACE_BEGIN("quota"); 1098 collectQuotaStats(device, userId, appId, &stats, &extStats); 1099 ATRACE_END(); 1100 1101 } else { 1102 ATRACE_BEGIN("code"); 1103 for (auto codePath : codePaths) { 1104 calculate_tree_size(codePath, &stats.codeSize); 1105 } 1106 ATRACE_END(); 1107 1108 for (size_t i = 0; i < packageNames.size(); i++) { 1109 const char* pkgname = packageNames[i].c_str(); 1110 1111 ATRACE_BEGIN("data"); 1112 auto cePath = create_data_user_ce_package_path(uuid_, userId, pkgname, ceDataInodes[i]); 1113 collectManualStats(cePath, &stats); 1114 auto dePath = create_data_user_de_package_path(uuid_, userId, pkgname); 1115 collectManualStats(dePath, &stats); 1116 ATRACE_END(); 1117 1118 ATRACE_BEGIN("profiles"); 1119 auto userProfilePath = create_data_user_profile_package_path(userId, pkgname); 1120 calculate_tree_size(userProfilePath, &stats.dataSize); 1121 auto refProfilePath = create_data_ref_profile_package_path(pkgname); 1122 calculate_tree_size(refProfilePath, &stats.codeSize); 1123 ATRACE_END(); 1124 1125#if MEASURE_EXTERNAL 1126 ATRACE_BEGIN("external"); 1127 auto extPath = create_data_media_package_path(uuid_, userId, pkgname, "data"); 1128 collectManualStats(extPath, &extStats); 1129 auto mediaPath = create_data_media_package_path(uuid_, userId, pkgname, "media"); 1130 calculate_tree_size(mediaPath, &extStats.dataSize); 1131 ATRACE_END(); 1132#endif 1133 } 1134 1135 ATRACE_BEGIN("dalvik"); 1136 int32_t sharedGid = multiuser_get_shared_gid(userId, appId); 1137 if (sharedGid != -1) { 1138 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize, 1139 sharedGid, -1); 1140 } 1141 calculate_tree_size(create_data_misc_foreign_dex_path(userId), &stats.dataSize, 1142 multiuser_get_uid(userId, appId), -1); 1143 ATRACE_END(); 1144 } 1145 1146 std::vector<int64_t> ret; 1147 ret.push_back(stats.codeSize); 1148 ret.push_back(stats.dataSize); 1149 ret.push_back(stats.cacheSize); 1150 ret.push_back(extStats.codeSize); 1151 ret.push_back(extStats.dataSize); 1152 ret.push_back(extStats.cacheSize); 1153#if MEASURE_DEBUG 1154 LOG(DEBUG) << "Final result " << toString(ret); 1155#endif 1156 *_aidl_return = ret; 1157 return ok(); 1158} 1159 1160binder::Status InstalldNativeService::getUserSize(const std::unique_ptr<std::string>& uuid, 1161 int32_t userId, int32_t flags, const std::vector<int32_t>& appIds, 1162 std::vector<int64_t>* _aidl_return) { 1163 ENFORCE_UID(AID_SYSTEM); 1164 CHECK_ARGUMENT_UUID(uuid); 1165 std::lock_guard<std::recursive_mutex> lock(mLock); 1166 1167 // When modifying this logic, always verify using tests: 1168 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetUserSize 1169 1170#if MEASURE_DEBUG 1171 LOG(INFO) << "Measuring user " << userId; 1172#endif 1173 1174 struct stats stats; 1175 struct stats extStats; 1176 memset(&stats, 0, sizeof(stats)); 1177 memset(&extStats, 0, sizeof(extStats)); 1178 1179 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 1180 1181 ATRACE_BEGIN("obb"); 1182 auto obbPath = create_data_path(uuid_) + "/media/obb"; 1183 calculate_tree_size(obbPath, &extStats.codeSize); 1184 ATRACE_END(); 1185 1186 auto device = findQuotaDeviceForUuid(uuid); 1187 if (device.empty()) { 1188 flags &= ~FLAG_USE_QUOTA; 1189 } 1190 1191 if (flags & FLAG_USE_QUOTA) { 1192 ATRACE_BEGIN("code"); 1193 calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize, -1, -1, true); 1194 ATRACE_END(); 1195 1196 ATRACE_BEGIN("data"); 1197 auto cePath = create_data_user_ce_path(uuid_, userId); 1198 collectManualStatsForUser(cePath, &stats, true); 1199 auto dePath = create_data_user_de_path(uuid_, userId); 1200 collectManualStatsForUser(dePath, &stats, true); 1201 ATRACE_END(); 1202 1203 ATRACE_BEGIN("profile"); 1204 auto userProfilePath = create_data_user_profile_path(userId); 1205 calculate_tree_size(userProfilePath, &stats.dataSize, -1, -1, true); 1206 auto refProfilePath = create_data_ref_profile_path(); 1207 calculate_tree_size(refProfilePath, &stats.codeSize, -1, -1, true); 1208 ATRACE_END(); 1209 1210#if MEASURE_EXTERNAL 1211 ATRACE_BEGIN("external"); 1212 // TODO: measure external storage paths 1213 ATRACE_END(); 1214#endif 1215 1216 ATRACE_BEGIN("dalvik"); 1217 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize, 1218 -1, -1, true); 1219 calculate_tree_size(create_data_misc_foreign_dex_path(userId), &stats.dataSize, 1220 -1, -1, true); 1221 ATRACE_END(); 1222 1223 ATRACE_BEGIN("quota"); 1224 for (auto appId : appIds) { 1225 if (appId >= AID_APP_START) { 1226 collectQuotaStats(device, userId, appId, &stats, &extStats); 1227#if MEASURE_DEBUG 1228 // Sleep to make sure we don't lose logs 1229 usleep(1); 1230#endif 1231 } 1232 } 1233 ATRACE_END(); 1234 } else { 1235 ATRACE_BEGIN("code"); 1236 calculate_tree_size(create_data_app_path(uuid_), &stats.codeSize); 1237 ATRACE_END(); 1238 1239 ATRACE_BEGIN("data"); 1240 auto cePath = create_data_user_ce_path(uuid_, userId); 1241 collectManualStatsForUser(cePath, &stats); 1242 auto dePath = create_data_user_de_path(uuid_, userId); 1243 collectManualStatsForUser(dePath, &stats); 1244 ATRACE_END(); 1245 1246 ATRACE_BEGIN("profile"); 1247 auto userProfilePath = create_data_user_profile_path(userId); 1248 calculate_tree_size(userProfilePath, &stats.dataSize); 1249 auto refProfilePath = create_data_ref_profile_path(); 1250 calculate_tree_size(refProfilePath, &stats.codeSize); 1251 ATRACE_END(); 1252 1253#if MEASURE_EXTERNAL 1254 ATRACE_BEGIN("external"); 1255 // TODO: measure external storage paths 1256 ATRACE_END(); 1257#endif 1258 1259 ATRACE_BEGIN("dalvik"); 1260 calculate_tree_size(create_data_dalvik_cache_path(), &stats.codeSize); 1261 calculate_tree_size(create_data_misc_foreign_dex_path(userId), &stats.dataSize); 1262 ATRACE_END(); 1263 } 1264 1265 std::vector<int64_t> ret; 1266 ret.push_back(stats.codeSize); 1267 ret.push_back(stats.dataSize); 1268 ret.push_back(stats.cacheSize); 1269 ret.push_back(extStats.codeSize); 1270 ret.push_back(extStats.dataSize); 1271 ret.push_back(extStats.cacheSize); 1272#if MEASURE_DEBUG 1273 LOG(DEBUG) << "Final result " << toString(ret); 1274#endif 1275 *_aidl_return = ret; 1276 return ok(); 1277} 1278 1279binder::Status InstalldNativeService::getExternalSize(const std::unique_ptr<std::string>& uuid, 1280 int32_t userId, int32_t flags, std::vector<int64_t>* _aidl_return) { 1281 ENFORCE_UID(AID_SYSTEM); 1282 CHECK_ARGUMENT_UUID(uuid); 1283 std::lock_guard<std::recursive_mutex> lock(mLock); 1284 1285 // When modifying this logic, always verify using tests: 1286 // runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/pm/InstallerTest.java -m testGetExternalSize 1287 1288#if MEASURE_DEBUG 1289 LOG(INFO) << "Measuring external " << userId; 1290#endif 1291 1292 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 1293 1294 int64_t totalSize = 0; 1295 int64_t audioSize = 0; 1296 int64_t videoSize = 0; 1297 int64_t imageSize = 0; 1298 1299 auto device = findQuotaDeviceForUuid(uuid); 1300 if (device.empty()) { 1301 flags &= ~FLAG_USE_QUOTA; 1302 } 1303 1304 if (flags & FLAG_USE_QUOTA) { 1305 struct dqblk dq; 1306 1307 uid_t uid = multiuser_get_uid(userId, AID_MEDIA_RW); 1308 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), device.c_str(), uid, 1309 reinterpret_cast<char*>(&dq)) != 0) { 1310 if (errno != ESRCH) { 1311 PLOG(ERROR) << "Failed to quotactl " << device << " for UID " << uid; 1312 } 1313 } else { 1314#if MEASURE_DEBUG 1315 LOG(DEBUG) << "quotactl() for UID " << uid << " " << dq.dqb_curspace; 1316#endif 1317 totalSize = dq.dqb_curspace; 1318 } 1319 1320 gid_t audioGid = multiuser_get_uid(userId, AID_MEDIA_AUDIO); 1321 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), audioGid, 1322 reinterpret_cast<char*>(&dq)) == 0) { 1323#if MEASURE_DEBUG 1324 LOG(DEBUG) << "quotactl() for GID " << audioGid << " " << dq.dqb_curspace; 1325#endif 1326 audioSize = dq.dqb_curspace; 1327 } 1328 gid_t videoGid = multiuser_get_uid(userId, AID_MEDIA_VIDEO); 1329 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), videoGid, 1330 reinterpret_cast<char*>(&dq)) == 0) { 1331#if MEASURE_DEBUG 1332 LOG(DEBUG) << "quotactl() for GID " << videoGid << " " << dq.dqb_curspace; 1333#endif 1334 videoSize = dq.dqb_curspace; 1335 } 1336 gid_t imageGid = multiuser_get_uid(userId, AID_MEDIA_IMAGE); 1337 if (quotactl(QCMD(Q_GETQUOTA, GRPQUOTA), device.c_str(), imageGid, 1338 reinterpret_cast<char*>(&dq)) == 0) { 1339#if MEASURE_DEBUG 1340 LOG(DEBUG) << "quotactl() for GID " << imageGid << " " << dq.dqb_curspace; 1341#endif 1342 imageSize = dq.dqb_curspace; 1343 } 1344 } else { 1345 FTS *fts; 1346 FTSENT *p; 1347 auto path = create_data_media_path(uuid_, userId); 1348 char *argv[] = { (char*) path.c_str(), nullptr }; 1349 if (!(fts = fts_open(argv, FTS_PHYSICAL | FTS_XDEV, NULL))) { 1350 return error("Failed to fts_open " + path); 1351 } 1352 while ((p = fts_read(fts)) != NULL) { 1353 char* ext; 1354 int64_t size = (p->fts_statp->st_blocks * 512); 1355 switch (p->fts_info) { 1356 case FTS_F: 1357 // Only categorize files not belonging to apps 1358 if (p->fts_statp->st_gid < AID_APP_START) { 1359 ext = strrchr(p->fts_name, '.'); 1360 if (ext != nullptr) { 1361 switch (MatchExtension(++ext)) { 1362 case AID_MEDIA_AUDIO: audioSize += size; break; 1363 case AID_MEDIA_VIDEO: videoSize += size; break; 1364 case AID_MEDIA_IMAGE: imageSize += size; break; 1365 } 1366 } 1367 } 1368 // Fall through to always count against total 1369 case FTS_D: 1370 case FTS_DEFAULT: 1371 case FTS_SL: 1372 case FTS_SLNONE: 1373 totalSize += size; 1374 break; 1375 } 1376 } 1377 fts_close(fts); 1378 } 1379 1380 std::vector<int64_t> ret; 1381 ret.push_back(totalSize); 1382 ret.push_back(audioSize); 1383 ret.push_back(videoSize); 1384 ret.push_back(imageSize); 1385#if MEASURE_DEBUG 1386 LOG(DEBUG) << "Final result " << toString(ret); 1387#endif 1388 *_aidl_return = ret; 1389 return ok(); 1390} 1391 1392// Dumps the contents of a profile file, using pkgname's dex files for pretty 1393// printing the result. 1394binder::Status InstalldNativeService::dumpProfiles(int32_t uid, const std::string& packageName, 1395 const std::string& codePaths, bool* _aidl_return) { 1396 ENFORCE_UID(AID_SYSTEM); 1397 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 1398 std::lock_guard<std::recursive_mutex> lock(mLock); 1399 1400 const char* pkgname = packageName.c_str(); 1401 const char* code_paths = codePaths.c_str(); 1402 1403 *_aidl_return = dump_profiles(uid, pkgname, code_paths); 1404 return ok(); 1405} 1406 1407// TODO: Consider returning error codes. 1408binder::Status InstalldNativeService::mergeProfiles(int32_t uid, const std::string& packageName, 1409 bool* _aidl_return) { 1410 ENFORCE_UID(AID_SYSTEM); 1411 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 1412 std::lock_guard<std::recursive_mutex> lock(mLock); 1413 1414 const char* pkgname = packageName.c_str(); 1415 *_aidl_return = analyse_profiles(uid, pkgname); 1416 return ok(); 1417} 1418 1419binder::Status InstalldNativeService::dexopt(const std::string& apkPath, int32_t uid, 1420 const std::unique_ptr<std::string>& packageName, const std::string& instructionSet, 1421 int32_t dexoptNeeded, const std::unique_ptr<std::string>& outputPath, int32_t dexFlags, 1422 const std::string& compilerFilter, const std::unique_ptr<std::string>& uuid, 1423 const std::unique_ptr<std::string>& sharedLibraries) { 1424 ENFORCE_UID(AID_SYSTEM); 1425 CHECK_ARGUMENT_UUID(uuid); 1426 if (packageName && *packageName != "*") { 1427 CHECK_ARGUMENT_PACKAGE_NAME(*packageName); 1428 } 1429 std::lock_guard<std::recursive_mutex> lock(mLock); 1430 1431 const char* apk_path = apkPath.c_str(); 1432 const char* pkgname = packageName ? packageName->c_str() : "*"; 1433 const char* instruction_set = instructionSet.c_str(); 1434 const char* oat_dir = outputPath ? outputPath->c_str() : nullptr; 1435 const char* compiler_filter = compilerFilter.c_str(); 1436 const char* volume_uuid = uuid ? uuid->c_str() : nullptr; 1437 const char* shared_libraries = sharedLibraries ? sharedLibraries->c_str() : nullptr; 1438 1439 int res = android::installd::dexopt(apk_path, uid, pkgname, instruction_set, dexoptNeeded, 1440 oat_dir, dexFlags, compiler_filter, volume_uuid, shared_libraries); 1441 return res ? error(res, "Failed to dexopt") : ok(); 1442} 1443 1444binder::Status InstalldNativeService::markBootComplete(const std::string& instructionSet) { 1445 ENFORCE_UID(AID_SYSTEM); 1446 std::lock_guard<std::recursive_mutex> lock(mLock); 1447 1448 const char* instruction_set = instructionSet.c_str(); 1449 1450 char boot_marker_path[PKG_PATH_MAX]; 1451 sprintf(boot_marker_path, 1452 "%s/%s/%s/.booting", 1453 android_data_dir.path, 1454 DALVIK_CACHE, 1455 instruction_set); 1456 1457 ALOGV("mark_boot_complete : %s", boot_marker_path); 1458 if (unlink(boot_marker_path) != 0) { 1459 return error(StringPrintf("Failed to unlink %s", boot_marker_path)); 1460 } 1461 return ok(); 1462} 1463 1464void mkinnerdirs(char* path, int basepos, mode_t mode, int uid, int gid, 1465 struct stat* statbuf) 1466{ 1467 while (path[basepos] != 0) { 1468 if (path[basepos] == '/') { 1469 path[basepos] = 0; 1470 if (lstat(path, statbuf) < 0) { 1471 ALOGV("Making directory: %s\n", path); 1472 if (mkdir(path, mode) == 0) { 1473 chown(path, uid, gid); 1474 } else { 1475 ALOGW("Unable to make directory %s: %s\n", path, strerror(errno)); 1476 } 1477 } 1478 path[basepos] = '/'; 1479 basepos++; 1480 } 1481 basepos++; 1482 } 1483} 1484 1485binder::Status InstalldNativeService::linkNativeLibraryDirectory( 1486 const std::unique_ptr<std::string>& uuid, const std::string& packageName, 1487 const std::string& nativeLibPath32, int32_t userId) { 1488 ENFORCE_UID(AID_SYSTEM); 1489 CHECK_ARGUMENT_UUID(uuid); 1490 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 1491 std::lock_guard<std::recursive_mutex> lock(mLock); 1492 1493 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 1494 const char* pkgname = packageName.c_str(); 1495 const char* asecLibDir = nativeLibPath32.c_str(); 1496 struct stat s, libStat; 1497 binder::Status res = ok(); 1498 1499 auto _pkgdir = create_data_user_ce_package_path(uuid_, userId, pkgname); 1500 auto _libsymlink = _pkgdir + PKG_LIB_POSTFIX; 1501 1502 const char* pkgdir = _pkgdir.c_str(); 1503 const char* libsymlink = _libsymlink.c_str(); 1504 1505 if (stat(pkgdir, &s) < 0) { 1506 return error("Failed to stat " + _pkgdir); 1507 } 1508 1509 if (chown(pkgdir, AID_INSTALL, AID_INSTALL) < 0) { 1510 return error("Failed to chown " + _pkgdir); 1511 } 1512 1513 if (chmod(pkgdir, 0700) < 0) { 1514 res = error("Failed to chmod " + _pkgdir); 1515 goto out; 1516 } 1517 1518 if (lstat(libsymlink, &libStat) < 0) { 1519 if (errno != ENOENT) { 1520 res = error("Failed to stat " + _libsymlink); 1521 goto out; 1522 } 1523 } else { 1524 if (S_ISDIR(libStat.st_mode)) { 1525 if (delete_dir_contents(libsymlink, 1, NULL) < 0) { 1526 res = error("Failed to delete " + _libsymlink); 1527 goto out; 1528 } 1529 } else if (S_ISLNK(libStat.st_mode)) { 1530 if (unlink(libsymlink) < 0) { 1531 res = error("Failed to unlink " + _libsymlink); 1532 goto out; 1533 } 1534 } 1535 } 1536 1537 if (symlink(asecLibDir, libsymlink) < 0) { 1538 res = error("Failed to symlink " + _libsymlink + " to " + nativeLibPath32); 1539 goto out; 1540 } 1541 1542out: 1543 if (chmod(pkgdir, s.st_mode) < 0) { 1544 auto msg = "Failed to cleanup chmod " + _pkgdir; 1545 if (res.isOk()) { 1546 res = error(msg); 1547 } else { 1548 PLOG(ERROR) << msg; 1549 } 1550 } 1551 1552 if (chown(pkgdir, s.st_uid, s.st_gid) < 0) { 1553 auto msg = "Failed to cleanup chown " + _pkgdir; 1554 if (res.isOk()) { 1555 res = error(msg); 1556 } else { 1557 PLOG(ERROR) << msg; 1558 } 1559 } 1560 1561 return res; 1562} 1563 1564static void run_idmap(const char *target_apk, const char *overlay_apk, int idmap_fd) 1565{ 1566 static const char *IDMAP_BIN = "/system/bin/idmap"; 1567 static const size_t MAX_INT_LEN = 32; 1568 char idmap_str[MAX_INT_LEN]; 1569 1570 snprintf(idmap_str, sizeof(idmap_str), "%d", idmap_fd); 1571 1572 execl(IDMAP_BIN, IDMAP_BIN, "--fd", target_apk, overlay_apk, idmap_str, (char*)NULL); 1573 ALOGE("execl(%s) failed: %s\n", IDMAP_BIN, strerror(errno)); 1574} 1575 1576// Transform string /a/b/c.apk to (prefix)/a@b@c.apk@(suffix) 1577// eg /a/b/c.apk to /data/resource-cache/a@b@c.apk@idmap 1578static int flatten_path(const char *prefix, const char *suffix, 1579 const char *overlay_path, char *idmap_path, size_t N) 1580{ 1581 if (overlay_path == NULL || idmap_path == NULL) { 1582 return -1; 1583 } 1584 const size_t len_overlay_path = strlen(overlay_path); 1585 // will access overlay_path + 1 further below; requires absolute path 1586 if (len_overlay_path < 2 || *overlay_path != '/') { 1587 return -1; 1588 } 1589 const size_t len_idmap_root = strlen(prefix); 1590 const size_t len_suffix = strlen(suffix); 1591 if (SIZE_MAX - len_idmap_root < len_overlay_path || 1592 SIZE_MAX - (len_idmap_root + len_overlay_path) < len_suffix) { 1593 // additions below would cause overflow 1594 return -1; 1595 } 1596 if (N < len_idmap_root + len_overlay_path + len_suffix) { 1597 return -1; 1598 } 1599 memset(idmap_path, 0, N); 1600 snprintf(idmap_path, N, "%s%s%s", prefix, overlay_path + 1, suffix); 1601 char *ch = idmap_path + len_idmap_root; 1602 while (*ch != '\0') { 1603 if (*ch == '/') { 1604 *ch = '@'; 1605 } 1606 ++ch; 1607 } 1608 return 0; 1609} 1610 1611binder::Status InstalldNativeService::idmap(const std::string& targetApkPath, 1612 const std::string& overlayApkPath, int32_t uid) { 1613 ENFORCE_UID(AID_SYSTEM); 1614 std::lock_guard<std::recursive_mutex> lock(mLock); 1615 1616 const char* target_apk = targetApkPath.c_str(); 1617 const char* overlay_apk = overlayApkPath.c_str(); 1618 ALOGV("idmap target_apk=%s overlay_apk=%s uid=%d\n", target_apk, overlay_apk, uid); 1619 1620 int idmap_fd = -1; 1621 char idmap_path[PATH_MAX]; 1622 1623 if (flatten_path(IDMAP_PREFIX, IDMAP_SUFFIX, overlay_apk, 1624 idmap_path, sizeof(idmap_path)) == -1) { 1625 ALOGE("idmap cannot generate idmap path for overlay %s\n", overlay_apk); 1626 goto fail; 1627 } 1628 1629 unlink(idmap_path); 1630 idmap_fd = open(idmap_path, O_RDWR | O_CREAT | O_EXCL, 0644); 1631 if (idmap_fd < 0) { 1632 ALOGE("idmap cannot open '%s' for output: %s\n", idmap_path, strerror(errno)); 1633 goto fail; 1634 } 1635 if (fchown(idmap_fd, AID_SYSTEM, uid) < 0) { 1636 ALOGE("idmap cannot chown '%s'\n", idmap_path); 1637 goto fail; 1638 } 1639 if (fchmod(idmap_fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) < 0) { 1640 ALOGE("idmap cannot chmod '%s'\n", idmap_path); 1641 goto fail; 1642 } 1643 1644 pid_t pid; 1645 pid = fork(); 1646 if (pid == 0) { 1647 /* child -- drop privileges before continuing */ 1648 if (setgid(uid) != 0) { 1649 ALOGE("setgid(%d) failed during idmap\n", uid); 1650 exit(1); 1651 } 1652 if (setuid(uid) != 0) { 1653 ALOGE("setuid(%d) failed during idmap\n", uid); 1654 exit(1); 1655 } 1656 if (flock(idmap_fd, LOCK_EX | LOCK_NB) != 0) { 1657 ALOGE("flock(%s) failed during idmap: %s\n", idmap_path, strerror(errno)); 1658 exit(1); 1659 } 1660 1661 run_idmap(target_apk, overlay_apk, idmap_fd); 1662 exit(1); /* only if exec call to idmap failed */ 1663 } else { 1664 int status = wait_child(pid); 1665 if (status != 0) { 1666 ALOGE("idmap failed, status=0x%04x\n", status); 1667 goto fail; 1668 } 1669 } 1670 1671 close(idmap_fd); 1672 return ok(); 1673fail: 1674 if (idmap_fd >= 0) { 1675 close(idmap_fd); 1676 unlink(idmap_path); 1677 } 1678 return error(); 1679} 1680 1681binder::Status InstalldNativeService::restoreconAppData(const std::unique_ptr<std::string>& uuid, 1682 const std::string& packageName, int32_t userId, int32_t flags, int32_t appId, 1683 const std::string& seInfo) { 1684 ENFORCE_UID(AID_SYSTEM); 1685 CHECK_ARGUMENT_UUID(uuid); 1686 CHECK_ARGUMENT_PACKAGE_NAME(packageName); 1687 std::lock_guard<std::recursive_mutex> lock(mLock); 1688 1689 binder::Status res = ok(); 1690 1691 // SELINUX_ANDROID_RESTORECON_DATADATA flag is set by libselinux. Not needed here. 1692 unsigned int seflags = SELINUX_ANDROID_RESTORECON_RECURSE; 1693 const char* uuid_ = uuid ? uuid->c_str() : nullptr; 1694 const char* pkgName = packageName.c_str(); 1695 const char* seinfo = seInfo.c_str(); 1696 1697 uid_t uid = multiuser_get_uid(userId, appId); 1698 if (flags & FLAG_STORAGE_CE) { 1699 auto path = create_data_user_ce_package_path(uuid_, userId, pkgName); 1700 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) { 1701 res = error("restorecon failed for " + path); 1702 } 1703 } 1704 if (flags & FLAG_STORAGE_DE) { 1705 auto path = create_data_user_de_package_path(uuid_, userId, pkgName); 1706 if (selinux_android_restorecon_pkgdir(path.c_str(), seinfo, uid, seflags) < 0) { 1707 res = error("restorecon failed for " + path); 1708 } 1709 } 1710 return res; 1711} 1712 1713binder::Status InstalldNativeService::createOatDir(const std::string& oatDir, 1714 const std::string& instructionSet) { 1715 ENFORCE_UID(AID_SYSTEM); 1716 std::lock_guard<std::recursive_mutex> lock(mLock); 1717 1718 const char* oat_dir = oatDir.c_str(); 1719 const char* instruction_set = instructionSet.c_str(); 1720 char oat_instr_dir[PKG_PATH_MAX]; 1721 1722 if (validate_apk_path(oat_dir)) { 1723 return error("Invalid path " + oatDir); 1724 } 1725 if (fs_prepare_dir(oat_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) { 1726 return error("Failed to prepare " + oatDir); 1727 } 1728 if (selinux_android_restorecon(oat_dir, 0)) { 1729 return error("Failed to restorecon " + oatDir); 1730 } 1731 snprintf(oat_instr_dir, PKG_PATH_MAX, "%s/%s", oat_dir, instruction_set); 1732 if (fs_prepare_dir(oat_instr_dir, S_IRWXU | S_IRWXG | S_IXOTH, AID_SYSTEM, AID_INSTALL)) { 1733 return error(StringPrintf("Failed to prepare %s", oat_instr_dir)); 1734 } 1735 return ok(); 1736} 1737 1738binder::Status InstalldNativeService::rmPackageDir(const std::string& packageDir) { 1739 ENFORCE_UID(AID_SYSTEM); 1740 std::lock_guard<std::recursive_mutex> lock(mLock); 1741 1742 if (validate_apk_path(packageDir.c_str())) { 1743 return error("Invalid path " + packageDir); 1744 } 1745 if (delete_dir_contents_and_dir(packageDir) != 0) { 1746 return error("Failed to delete " + packageDir); 1747 } 1748 return ok(); 1749} 1750 1751binder::Status InstalldNativeService::linkFile(const std::string& relativePath, 1752 const std::string& fromBase, const std::string& toBase) { 1753 ENFORCE_UID(AID_SYSTEM); 1754 std::lock_guard<std::recursive_mutex> lock(mLock); 1755 1756 const char* relative_path = relativePath.c_str(); 1757 const char* from_base = fromBase.c_str(); 1758 const char* to_base = toBase.c_str(); 1759 char from_path[PKG_PATH_MAX]; 1760 char to_path[PKG_PATH_MAX]; 1761 snprintf(from_path, PKG_PATH_MAX, "%s/%s", from_base, relative_path); 1762 snprintf(to_path, PKG_PATH_MAX, "%s/%s", to_base, relative_path); 1763 1764 if (validate_apk_path_subdirs(from_path)) { 1765 return error(StringPrintf("Invalid from path %s", from_path)); 1766 } 1767 1768 if (validate_apk_path_subdirs(to_path)) { 1769 return error(StringPrintf("Invalid to path %s", to_path)); 1770 } 1771 1772 if (link(from_path, to_path) < 0) { 1773 return error(StringPrintf("Failed to link from %s to %s", from_path, to_path)); 1774 } 1775 1776 return ok(); 1777} 1778 1779binder::Status InstalldNativeService::moveAb(const std::string& apkPath, 1780 const std::string& instructionSet, const std::string& outputPath) { 1781 ENFORCE_UID(AID_SYSTEM); 1782 std::lock_guard<std::recursive_mutex> lock(mLock); 1783 1784 const char* apk_path = apkPath.c_str(); 1785 const char* instruction_set = instructionSet.c_str(); 1786 const char* oat_dir = outputPath.c_str(); 1787 1788 bool success = move_ab(apk_path, instruction_set, oat_dir); 1789 return success ? ok() : error(); 1790} 1791 1792binder::Status InstalldNativeService::deleteOdex(const std::string& apkPath, 1793 const std::string& instructionSet, const std::string& outputPath) { 1794 ENFORCE_UID(AID_SYSTEM); 1795 std::lock_guard<std::recursive_mutex> lock(mLock); 1796 1797 const char* apk_path = apkPath.c_str(); 1798 const char* instruction_set = instructionSet.c_str(); 1799 const char* oat_dir = outputPath.c_str(); 1800 1801 bool res = delete_odex(apk_path, instruction_set, oat_dir); 1802 return res ? ok() : error(); 1803} 1804 1805binder::Status InstalldNativeService::invalidateMounts() { 1806 ENFORCE_UID(AID_SYSTEM); 1807 std::lock_guard<std::recursive_mutex> lock(mLock); 1808 1809 mQuotaDevices.clear(); 1810 1811 std::ifstream in("/proc/mounts"); 1812 if (!in.is_open()) { 1813 return error("Failed to read mounts"); 1814 } 1815 1816 std::string source; 1817 std::string target; 1818 std::string ignored; 1819 struct dqblk dq; 1820 while (!in.eof()) { 1821 std::getline(in, source, ' '); 1822 std::getline(in, target, ' '); 1823 std::getline(in, ignored); 1824 1825 if (source.compare(0, 11, "/dev/block/") == 0) { 1826 if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), source.c_str(), 0, 1827 reinterpret_cast<char*>(&dq)) == 0) { 1828 LOG(DEBUG) << "Found " << source << " with quota"; 1829 mQuotaDevices[target] = source; 1830 } 1831 } 1832 } 1833 return ok(); 1834} 1835 1836std::string InstalldNativeService::findQuotaDeviceForUuid( 1837 const std::unique_ptr<std::string>& uuid) { 1838 auto path = create_data_path(uuid ? uuid->c_str() : nullptr); 1839 return mQuotaDevices[path]; 1840} 1841 1842} // namespace installd 1843} // namespace android 1844