| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define ATRACE_TAG ATRACE_TAG_PACKAGE_MANAGER |
| |
| #include "VoldNativeService.h" |
| #include "Benchmark.h" |
| #include "CheckEncryption.h" |
| #include "IdleMaint.h" |
| #include "MoveStorage.h" |
| #include "Process.h" |
| #include "VolumeManager.h" |
| |
| #include "Checkpoint.h" |
| #include "FsCrypt.h" |
| #include "MetadataCrypt.h" |
| #include "cryptfs.h" |
| #include "incfs_ndk.h" |
| |
| #include <fstream> |
| #include <thread> |
| |
| #include <android-base/logging.h> |
| #include <android-base/stringprintf.h> |
| #include <android-base/strings.h> |
| #include <fs_mgr.h> |
| #include <fscrypt/fscrypt.h> |
| #include <private/android_filesystem_config.h> |
| #include <utils/Trace.h> |
| |
| using android::base::StringPrintf; |
| using std::endl; |
| |
| namespace android { |
| namespace vold { |
| |
| namespace { |
| |
| constexpr const char* kDump = "android.permission.DUMP"; |
| |
| static binder::Status ok() { |
| return binder::Status::ok(); |
| } |
| |
| static binder::Status exception(uint32_t code, const std::string& msg) { |
| return binder::Status::fromExceptionCode(code, String8(msg.c_str())); |
| } |
| |
| static binder::Status error(const std::string& msg) { |
| PLOG(ERROR) << msg; |
| return binder::Status::fromServiceSpecificError(errno, String8(msg.c_str())); |
| } |
| |
| static binder::Status translate(int status) { |
| if (status == 0) { |
| return binder::Status::ok(); |
| } else { |
| return binder::Status::fromServiceSpecificError(status); |
| } |
| } |
| |
| static binder::Status translateBool(bool status) { |
| if (status) { |
| return binder::Status::ok(); |
| } else { |
| return binder::Status::fromServiceSpecificError(status); |
| } |
| } |
| |
| binder::Status checkPermission(const char* permission) { |
| pid_t pid; |
| uid_t uid; |
| |
| if (checkCallingPermission(String16(permission), reinterpret_cast<int32_t*>(&pid), |
| reinterpret_cast<int32_t*>(&uid))) { |
| return ok(); |
| } else { |
| return exception(binder::Status::EX_SECURITY, |
| StringPrintf("UID %d / PID %d lacks permission %s", uid, pid, permission)); |
| } |
| } |
| |
| binder::Status checkUidOrRoot(uid_t expectedUid) { |
| uid_t uid = IPCThreadState::self()->getCallingUid(); |
| if (uid == expectedUid || uid == AID_ROOT) { |
| return ok(); |
| } else { |
| return exception(binder::Status::EX_SECURITY, |
| StringPrintf("UID %d is not expected UID %d", uid, expectedUid)); |
| } |
| } |
| |
| binder::Status checkArgumentId(const std::string& id) { |
| if (id.empty()) { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, "Missing ID"); |
| } |
| for (const char& c : id) { |
| if (!std::isalnum(c) && c != ':' && c != ',' && c != ';') { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, |
| StringPrintf("ID %s is malformed", id.c_str())); |
| } |
| } |
| return ok(); |
| } |
| |
| binder::Status checkArgumentPath(const std::string& path) { |
| if (path.empty()) { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, "Missing path"); |
| } |
| if (path[0] != '/') { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, |
| StringPrintf("Path %s is relative", path.c_str())); |
| } |
| if ((path + '/').find("/../") != std::string::npos) { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, |
| StringPrintf("Path %s is shady", path.c_str())); |
| } |
| for (const char& c : path) { |
| if (c == '\0' || c == '\n') { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, |
| StringPrintf("Path %s is malformed", path.c_str())); |
| } |
| } |
| return ok(); |
| } |
| |
| binder::Status checkArgumentHex(const std::string& hex) { |
| // Empty hex strings are allowed |
| for (const char& c : hex) { |
| if (!std::isxdigit(c) && c != ':' && c != '-') { |
| return exception(binder::Status::EX_ILLEGAL_ARGUMENT, |
| StringPrintf("Hex %s is malformed", hex.c_str())); |
| } |
| } |
| return ok(); |
| } |
| |
| #define ENFORCE_SYSTEM_OR_ROOT \ |
| { \ |
| binder::Status status = checkUidOrRoot(AID_SYSTEM); \ |
| if (!status.isOk()) { \ |
| return status; \ |
| } \ |
| } |
| |
| #define CHECK_ARGUMENT_ID(id) \ |
| { \ |
| binder::Status status = checkArgumentId((id)); \ |
| if (!status.isOk()) { \ |
| return status; \ |
| } \ |
| } |
| |
| #define CHECK_ARGUMENT_PATH(path) \ |
| { \ |
| binder::Status status = checkArgumentPath((path)); \ |
| if (!status.isOk()) { \ |
| return status; \ |
| } \ |
| } |
| |
| #define CHECK_ARGUMENT_HEX(hex) \ |
| { \ |
| binder::Status status = checkArgumentHex((hex)); \ |
| if (!status.isOk()) { \ |
| return status; \ |
| } \ |
| } |
| |
| #define ACQUIRE_LOCK \ |
| std::lock_guard<std::mutex> lock(VolumeManager::Instance()->getLock()); \ |
| ATRACE_CALL(); |
| |
| #define ACQUIRE_CRYPT_LOCK \ |
| std::lock_guard<std::mutex> lock(VolumeManager::Instance()->getCryptLock()); \ |
| ATRACE_CALL(); |
| |
| } // namespace |
| |
| status_t VoldNativeService::start() { |
| IPCThreadState::self()->disableBackgroundScheduling(true); |
| status_t ret = BinderService<VoldNativeService>::publish(); |
| if (ret != android::OK) { |
| return ret; |
| } |
| sp<ProcessState> ps(ProcessState::self()); |
| ps->startThreadPool(); |
| ps->giveThreadPoolName(); |
| return android::OK; |
| } |
| |
| status_t VoldNativeService::dump(int fd, const Vector<String16>& /* args */) { |
| auto out = std::fstream(StringPrintf("/proc/self/fd/%d", fd)); |
| const binder::Status dump_permission = checkPermission(kDump); |
| if (!dump_permission.isOk()) { |
| out << dump_permission.toString8() << endl; |
| return PERMISSION_DENIED; |
| } |
| |
| ACQUIRE_LOCK; |
| out << "vold is happy!" << endl; |
| out.flush(); |
| return NO_ERROR; |
| } |
| |
| binder::Status VoldNativeService::setListener( |
| const android::sp<android::os::IVoldListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| VolumeManager::Instance()->setListener(listener); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::monitor() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| |
| // Simply acquire/release each lock for watchdog |
| { ACQUIRE_LOCK; } |
| { ACQUIRE_CRYPT_LOCK; } |
| |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::reset() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->reset()); |
| } |
| |
| binder::Status VoldNativeService::shutdown() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->shutdown()); |
| } |
| |
| binder::Status VoldNativeService::onUserAdded(int32_t userId, int32_t userSerial) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->onUserAdded(userId, userSerial)); |
| } |
| |
| binder::Status VoldNativeService::onUserRemoved(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->onUserRemoved(userId)); |
| } |
| |
| binder::Status VoldNativeService::onUserStarted(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->onUserStarted(userId)); |
| } |
| |
| binder::Status VoldNativeService::onUserStopped(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->onUserStopped(userId)); |
| } |
| |
| binder::Status VoldNativeService::addAppIds(const std::vector<std::string>& packageNames, |
| const std::vector<int32_t>& appIds) { |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::addSandboxIds(const std::vector<int32_t>& appIds, |
| const std::vector<std::string>& sandboxIds) { |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::onSecureKeyguardStateChanged(bool isShowing) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->onSecureKeyguardStateChanged(isShowing)); |
| } |
| |
| binder::Status VoldNativeService::partition(const std::string& diskId, int32_t partitionType, |
| int32_t ratio) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(diskId); |
| ACQUIRE_LOCK; |
| |
| auto disk = VolumeManager::Instance()->findDisk(diskId); |
| if (disk == nullptr) { |
| return error("Failed to find disk " + diskId); |
| } |
| switch (partitionType) { |
| case PARTITION_TYPE_PUBLIC: |
| return translate(disk->partitionPublic()); |
| case PARTITION_TYPE_PRIVATE: |
| return translate(disk->partitionPrivate()); |
| case PARTITION_TYPE_MIXED: |
| return translate(disk->partitionMixed(ratio)); |
| default: |
| return error("Unknown type " + std::to_string(partitionType)); |
| } |
| } |
| |
| binder::Status VoldNativeService::forgetPartition(const std::string& partGuid, |
| const std::string& fsUuid) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_HEX(partGuid); |
| CHECK_ARGUMENT_HEX(fsUuid); |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->forgetPartition(partGuid, fsUuid)); |
| } |
| |
| binder::Status VoldNativeService::mount( |
| const std::string& volId, int32_t mountFlags, int32_t mountUserId, |
| const android::sp<android::os::IVoldMountCallback>& callback) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| auto vol = VolumeManager::Instance()->findVolume(volId); |
| if (vol == nullptr) { |
| return error("Failed to find volume " + volId); |
| } |
| |
| vol->setMountFlags(mountFlags); |
| vol->setMountUserId(mountUserId); |
| |
| vol->setMountCallback(callback); |
| int res = vol->mount(); |
| vol->setMountCallback(nullptr); |
| |
| if (res != OK) { |
| return translate(res); |
| } |
| |
| if ((mountFlags & MOUNT_FLAG_PRIMARY) != 0) { |
| res = VolumeManager::Instance()->setPrimary(vol); |
| if (res != OK) { |
| return translate(res); |
| } |
| } |
| return translate(OK); |
| } |
| |
| binder::Status VoldNativeService::unmount(const std::string& volId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| auto vol = VolumeManager::Instance()->findVolume(volId); |
| if (vol == nullptr) { |
| return error("Failed to find volume " + volId); |
| } |
| return translate(vol->unmount()); |
| } |
| |
| binder::Status VoldNativeService::format(const std::string& volId, const std::string& fsType) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| auto vol = VolumeManager::Instance()->findVolume(volId); |
| if (vol == nullptr) { |
| return error("Failed to find volume " + volId); |
| } |
| return translate(vol->format(fsType)); |
| } |
| |
| static binder::Status pathForVolId(const std::string& volId, std::string* path) { |
| if (volId == "private" || volId == "null") { |
| *path = "/data"; |
| } else { |
| auto vol = VolumeManager::Instance()->findVolume(volId); |
| if (vol == nullptr) { |
| return error("Failed to find volume " + volId); |
| } |
| if (vol->getType() != VolumeBase::Type::kPrivate) { |
| return error("Volume " + volId + " not private"); |
| } |
| if (vol->getState() != VolumeBase::State::kMounted) { |
| return error("Volume " + volId + " not mounted"); |
| } |
| *path = vol->getPath(); |
| if (path->empty()) { |
| return error("Volume " + volId + " missing path"); |
| } |
| } |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::benchmark( |
| const std::string& volId, const android::sp<android::os::IVoldTaskListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| std::string path; |
| auto status = pathForVolId(volId, &path); |
| if (!status.isOk()) return status; |
| |
| std::thread([=]() { android::vold::Benchmark(path, listener); }).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::checkEncryption(const std::string& volId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| std::string path; |
| auto status = pathForVolId(volId, &path); |
| if (!status.isOk()) return status; |
| return translate(android::vold::CheckEncryption(path)); |
| } |
| |
| binder::Status VoldNativeService::moveStorage( |
| const std::string& fromVolId, const std::string& toVolId, |
| const android::sp<android::os::IVoldTaskListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(fromVolId); |
| CHECK_ARGUMENT_ID(toVolId); |
| ACQUIRE_LOCK; |
| |
| auto fromVol = VolumeManager::Instance()->findVolume(fromVolId); |
| auto toVol = VolumeManager::Instance()->findVolume(toVolId); |
| if (fromVol == nullptr) { |
| return error("Failed to find volume " + fromVolId); |
| } else if (toVol == nullptr) { |
| return error("Failed to find volume " + toVolId); |
| } |
| |
| std::thread([=]() { android::vold::MoveStorage(fromVol, toVol, listener); }).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::remountUid(int32_t uid, int32_t remountMode) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->remountUid(uid, remountMode)); |
| } |
| |
| binder::Status VoldNativeService::setupAppDir(const std::string& path, |
| const std::string& appDirRoot, int32_t appUid) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_PATH(path); |
| CHECK_ARGUMENT_PATH(appDirRoot); |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->setupAppDir(path, appDirRoot, appUid)); |
| } |
| |
| binder::Status VoldNativeService::createObb(const std::string& sourcePath, |
| const std::string& sourceKey, int32_t ownerGid, |
| std::string* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_PATH(sourcePath); |
| CHECK_ARGUMENT_HEX(sourceKey); |
| ACQUIRE_LOCK; |
| |
| return translate( |
| VolumeManager::Instance()->createObb(sourcePath, sourceKey, ownerGid, _aidl_return)); |
| } |
| |
| binder::Status VoldNativeService::destroyObb(const std::string& volId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->destroyObb(volId)); |
| } |
| |
| binder::Status VoldNativeService::createStubVolume( |
| const std::string& sourcePath, const std::string& mountPath, const std::string& fsType, |
| const std::string& fsUuid, const std::string& fsLabel, std::string* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_PATH(sourcePath); |
| CHECK_ARGUMENT_PATH(mountPath); |
| CHECK_ARGUMENT_HEX(fsUuid); |
| // Label limitation seems to be different between fs (including allowed characters), so checking |
| // is quite meaningless. |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->createStubVolume(sourcePath, mountPath, fsType, |
| fsUuid, fsLabel, _aidl_return)); |
| } |
| |
| binder::Status VoldNativeService::destroyStubVolume(const std::string& volId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_ID(volId); |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->destroyStubVolume(volId)); |
| } |
| |
| binder::Status VoldNativeService::fstrim( |
| int32_t fstrimFlags, const android::sp<android::os::IVoldTaskListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| std::thread([=]() { android::vold::Trim(listener); }).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::runIdleMaint( |
| const android::sp<android::os::IVoldTaskListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| std::thread([=]() { android::vold::RunIdleMaint(listener); }).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::abortIdleMaint( |
| const android::sp<android::os::IVoldTaskListener>& listener) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| std::thread([=]() { android::vold::AbortIdleMaint(listener); }).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::mountAppFuse(int32_t uid, int32_t mountId, |
| android::base::unique_fd* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->mountAppFuse(uid, mountId, _aidl_return)); |
| } |
| |
| binder::Status VoldNativeService::unmountAppFuse(int32_t uid, int32_t mountId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translate(VolumeManager::Instance()->unmountAppFuse(uid, mountId)); |
| } |
| |
| binder::Status VoldNativeService::openAppFuseFile(int32_t uid, int32_t mountId, int32_t fileId, |
| int32_t flags, |
| android::base::unique_fd* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| int fd = VolumeManager::Instance()->openAppFuseFile(uid, mountId, fileId, flags); |
| if (fd == -1) { |
| return error("Failed to open AppFuse file for uid: " + std::to_string(uid) + |
| " mountId: " + std::to_string(mountId) + " fileId: " + std::to_string(fileId) + |
| " flags: " + std::to_string(flags)); |
| } |
| |
| *_aidl_return = android::base::unique_fd(fd); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fdeCheckPassword(const std::string& password) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translate(cryptfs_check_passwd(password.c_str())); |
| } |
| |
| binder::Status VoldNativeService::fdeRestart() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| // Spawn as thread so init can issue commands back to vold without |
| // causing deadlock, usually as a result of prep_data_fs. |
| std::thread(&cryptfs_restart).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fdeComplete(int32_t* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| *_aidl_return = cryptfs_crypto_complete(); |
| return ok(); |
| } |
| |
| static int fdeEnableInternal(int32_t passwordType, const std::string& password, |
| int32_t encryptionFlags) { |
| bool noUi = (encryptionFlags & VoldNativeService::ENCRYPTION_FLAG_NO_UI) != 0; |
| |
| for (int tries = 0; tries < 2; ++tries) { |
| int rc; |
| if (passwordType == VoldNativeService::PASSWORD_TYPE_DEFAULT) { |
| rc = cryptfs_enable_default(noUi); |
| } else { |
| rc = cryptfs_enable(passwordType, password.c_str(), noUi); |
| } |
| |
| if (rc == 0) { |
| return 0; |
| } else if (tries == 0) { |
| KillProcessesWithOpenFiles(DATA_MNT_POINT, SIGKILL); |
| } |
| } |
| |
| return -1; |
| } |
| |
| binder::Status VoldNativeService::fdeEnable(int32_t passwordType, const std::string& password, |
| int32_t encryptionFlags) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| LOG(DEBUG) << "fdeEnable(" << passwordType << ", *, " << encryptionFlags << ")"; |
| if (fscrypt_is_native()) { |
| LOG(ERROR) << "fscrypt_is_native, fdeEnable invalid"; |
| return error("fscrypt_is_native, fdeEnable invalid"); |
| } |
| LOG(DEBUG) << "!fscrypt_is_native, spawning fdeEnableInternal"; |
| |
| // Spawn as thread so init can issue commands back to vold without |
| // causing deadlock, usually as a result of prep_data_fs. |
| std::thread(&fdeEnableInternal, passwordType, password, encryptionFlags).detach(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fdeChangePassword(int32_t passwordType, |
| const std::string& currentPassword, |
| const std::string& password) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translate(cryptfs_changepw(passwordType, currentPassword.c_str(), password.c_str())); |
| } |
| |
| binder::Status VoldNativeService::fdeVerifyPassword(const std::string& password) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translate(cryptfs_verify_passwd(password.c_str())); |
| } |
| |
| binder::Status VoldNativeService::fdeGetField(const std::string& key, std::string* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| char buf[PROPERTY_VALUE_MAX]; |
| if (cryptfs_getfield(key.c_str(), buf, sizeof(buf)) != CRYPTO_GETFIELD_OK) { |
| return error(StringPrintf("Failed to read field %s", key.c_str())); |
| } else { |
| *_aidl_return = buf; |
| return ok(); |
| } |
| } |
| |
| binder::Status VoldNativeService::fdeSetField(const std::string& key, const std::string& value) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translate(cryptfs_setfield(key.c_str(), value.c_str())); |
| } |
| |
| binder::Status VoldNativeService::fdeGetPasswordType(int32_t* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| *_aidl_return = cryptfs_get_password_type(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fdeGetPassword(std::string* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| const char* res = cryptfs_get_password(); |
| if (res != nullptr) { |
| *_aidl_return = res; |
| } |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fdeClearPassword() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| cryptfs_clear_password(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::fbeEnable() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_initialize_systemwide_keys()); |
| } |
| |
| binder::Status VoldNativeService::mountDefaultEncrypted() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| if (!fscrypt_is_native()) { |
| // Spawn as thread so init can issue commands back to vold without |
| // causing deadlock, usually as a result of prep_data_fs. |
| std::thread(&cryptfs_mount_default_encrypted).detach(); |
| } |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::initUser0() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_init_user0()); |
| } |
| |
| binder::Status VoldNativeService::isConvertibleToFbe(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| *_aidl_return = cryptfs_isConvertibleToFBE() != 0; |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::mountFstab(const std::string& blkDevice, |
| const std::string& mountPoint) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translateBool(fscrypt_mount_metadata_encrypted(blkDevice, mountPoint, false)); |
| } |
| |
| binder::Status VoldNativeService::encryptFstab(const std::string& blkDevice, |
| const std::string& mountPoint) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return translateBool(fscrypt_mount_metadata_encrypted(blkDevice, mountPoint, true)); |
| } |
| |
| binder::Status VoldNativeService::createUserKey(int32_t userId, int32_t userSerial, bool ephemeral) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_vold_create_user_key(userId, userSerial, ephemeral)); |
| } |
| |
| binder::Status VoldNativeService::destroyUserKey(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_destroy_user_key(userId)); |
| } |
| |
| binder::Status VoldNativeService::addUserKeyAuth(int32_t userId, int32_t userSerial, |
| const std::string& token, |
| const std::string& secret) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_add_user_key_auth(userId, userSerial, token, secret)); |
| } |
| |
| binder::Status VoldNativeService::clearUserKeyAuth(int32_t userId, int32_t userSerial, |
| const std::string& token, |
| const std::string& secret) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_clear_user_key_auth(userId, userSerial, token, secret)); |
| } |
| |
| binder::Status VoldNativeService::fixateNewestUserKeyAuth(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_fixate_newest_user_key_auth(userId)); |
| } |
| |
| binder::Status VoldNativeService::unlockUserKey(int32_t userId, int32_t userSerial, |
| const std::string& token, |
| const std::string& secret) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_unlock_user_key(userId, userSerial, token, secret)); |
| } |
| |
| binder::Status VoldNativeService::lockUserKey(int32_t userId) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_CRYPT_LOCK; |
| |
| return translateBool(fscrypt_lock_user_key(userId)); |
| } |
| |
| binder::Status VoldNativeService::prepareUserStorage(const std::unique_ptr<std::string>& uuid, |
| int32_t userId, int32_t userSerial, |
| int32_t flags) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| std::string empty_string = ""; |
| auto uuid_ = uuid ? *uuid : empty_string; |
| CHECK_ARGUMENT_HEX(uuid_); |
| |
| ACQUIRE_CRYPT_LOCK; |
| return translateBool(fscrypt_prepare_user_storage(uuid_, userId, userSerial, flags)); |
| } |
| |
| binder::Status VoldNativeService::destroyUserStorage(const std::unique_ptr<std::string>& uuid, |
| int32_t userId, int32_t flags) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| std::string empty_string = ""; |
| auto uuid_ = uuid ? *uuid : empty_string; |
| CHECK_ARGUMENT_HEX(uuid_); |
| |
| ACQUIRE_CRYPT_LOCK; |
| return translateBool(fscrypt_destroy_user_storage(uuid_, userId, flags)); |
| } |
| |
| binder::Status VoldNativeService::prepareSandboxForApp(const std::string& packageName, |
| int32_t appId, const std::string& sandboxId, |
| int32_t userId) { |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::destroySandboxForApp(const std::string& packageName, |
| const std::string& sandboxId, |
| int32_t userId) { |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::startCheckpoint(int32_t retry) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_startCheckpoint(retry); |
| } |
| |
| binder::Status VoldNativeService::needsRollback(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| *_aidl_return = cp_needsRollback(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::needsCheckpoint(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| *_aidl_return = cp_needsCheckpoint(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::commitChanges() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_commitChanges(); |
| } |
| |
| binder::Status VoldNativeService::prepareCheckpoint() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_prepareCheckpoint(); |
| } |
| |
| binder::Status VoldNativeService::restoreCheckpoint(const std::string& mountPoint) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_PATH(mountPoint); |
| ACQUIRE_LOCK; |
| |
| return cp_restoreCheckpoint(mountPoint); |
| } |
| |
| binder::Status VoldNativeService::restoreCheckpointPart(const std::string& mountPoint, int count) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| CHECK_ARGUMENT_PATH(mountPoint); |
| ACQUIRE_LOCK; |
| |
| return cp_restoreCheckpoint(mountPoint, count); |
| } |
| |
| binder::Status VoldNativeService::markBootAttempt() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_markBootAttempt(); |
| } |
| |
| binder::Status VoldNativeService::abortChanges(const std::string& message, bool retry) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| cp_abortChanges(message, retry); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::supportsCheckpoint(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_supportsCheckpoint(*_aidl_return); |
| } |
| |
| binder::Status VoldNativeService::supportsBlockCheckpoint(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_supportsBlockCheckpoint(*_aidl_return); |
| } |
| |
| binder::Status VoldNativeService::supportsFileCheckpoint(bool* _aidl_return) { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| return cp_supportsFileCheckpoint(*_aidl_return); |
| } |
| |
| binder::Status VoldNativeService::resetCheckpoint() { |
| ENFORCE_SYSTEM_OR_ROOT; |
| ACQUIRE_LOCK; |
| |
| cp_resetCheckpoint(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::incFsVersion(int32_t* _aidl_return) { |
| *_aidl_return = IncFs_Version(); |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::mountIncFs( |
| const std::string& imagePath, const std::string& targetDir, int32_t flags, |
| ::android::os::incremental::IncrementalFileSystemControlParcel* _aidl_return) { |
| auto result = IncFs_Mount(imagePath.c_str(), targetDir.c_str(), flags, |
| INCFS_DEFAULT_READ_TIMEOUT_MS, 0777); |
| if (result.cmdFd < 0) { |
| return translate(result.cmdFd); |
| } |
| LOG(INFO) << "VoldNativeService::mountIncFs: everything is fine! " << result.cmdFd << "/" |
| << result.logFd; |
| using ParcelFileDescriptor = ::android::os::ParcelFileDescriptor; |
| using unique_fd = ::android::base::unique_fd; |
| _aidl_return->cmd = std::make_unique<ParcelFileDescriptor>(unique_fd(result.cmdFd)); |
| if (result.logFd >= 0) { |
| _aidl_return->log = std::make_unique<ParcelFileDescriptor>(unique_fd(result.logFd)); |
| } |
| return ok(); |
| } |
| |
| binder::Status VoldNativeService::unmountIncFs(const std::string& dir) { |
| return translate(IncFs_Unmount(dir.c_str())); |
| } |
| |
| binder::Status VoldNativeService::bindMount(const std::string& sourceDir, |
| const std::string& targetDir) { |
| return translate(IncFs_BindMount(sourceDir.c_str(), targetDir.c_str())); |
| } |
| |
| } // namespace vold |
| } // namespace android |