1 /* 2 * Copyright (C) 2017 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 "VendorVoldNativeService.h" 18 19 #include <mutex> 20 21 #include <android-base/logging.h> 22 #include <binder/IServiceManager.h> 23 #include <private/android_filesystem_config.h> 24 #include <utils/Trace.h> 25 26 #include "Checkpoint.h" 27 #include "VoldNativeServiceValidation.h" 28 #include "VolumeManager.h" 29 30 #define ENFORCE_SYSTEM_OR_ROOT \ 31 { \ 32 binder::Status status = CheckUidOrRoot(AID_SYSTEM); \ 33 if (!status.isOk()) { \ 34 return status; \ 35 } \ 36 } 37 38 #define ACQUIRE_LOCK \ 39 std::lock_guard<std::mutex> lock(VolumeManager::Instance()->getLock()); \ 40 ATRACE_CALL(); 41 42 namespace android::vold { 43 try_start()44status_t VendorVoldNativeService::try_start() { 45 auto service_name = String16("android.system.vold.IVold/default"); 46 if (!defaultServiceManager()->isDeclared(service_name)) { 47 LOG(DEBUG) << "Service for VendorVoldNativeService (" << service_name << ") not declared."; 48 return OK; 49 } 50 return defaultServiceManager()->addService(std::move(service_name), 51 new VendorVoldNativeService()); 52 } 53 registerCheckpointListener(const sp<android::system::vold::IVoldCheckpointListener> & listener,android::system::vold::CheckpointingState * _aidl_return)54binder::Status VendorVoldNativeService::registerCheckpointListener( 55 const sp<android::system::vold::IVoldCheckpointListener>& listener, 56 android::system::vold::CheckpointingState* _aidl_return) { 57 ENFORCE_SYSTEM_OR_ROOT; 58 ACQUIRE_LOCK; 59 60 bool possible_checkpointing = cp_registerCheckpointListener(listener); 61 *_aidl_return = possible_checkpointing 62 ? android::system::vold::CheckpointingState::POSSIBLE_CHECKPOINTING 63 : android::system::vold::CheckpointingState::CHECKPOINTING_COMPLETE; 64 return binder::Status::ok(); 65 } 66 67 } // namespace android::vold 68