/* * Copyright (C) 2018 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. */ #include "chre/platform/slpi/nanoapp_load_manager.h" namespace chre { bool NanoappLoadManager::prepareForLoad( uint16_t hostClientId, uint32_t transactionId, uint64_t appId, uint32_t appVersion, size_t totalBinaryLen) { if (hasPendingLoadTransaction()) { LOGW("Pending load transaction already exists. Overriding previous" " transaction."); } mCurrentLoadInfo.hostClientId = hostClientId; mCurrentLoadInfo.transactionId = transactionId; mCurrentLoadInfo.nextFragmentId = 1; mNanoapp = MakeUnique<Nanoapp>(); bool success = false; if (mNanoapp.isNull()) { LOG_OOM(); } else { success = mNanoapp->reserveBuffer(appId, appVersion, totalBinaryLen); } if (!success) { markFailure(); } return success; } bool NanoappLoadManager::copyNanoappFragment( uint16_t hostClientId, uint32_t transactionId, uint32_t fragmentId, const void *buffer, size_t bufferLen) { bool success = false; if (validateFragment(hostClientId, transactionId, fragmentId)) { success = mNanoapp->copyNanoappFragment(buffer, bufferLen); if (success) { mCurrentLoadInfo.nextFragmentId++; } else { markFailure(); } } return success; } bool NanoappLoadManager::validateFragment( uint16_t hostClientId, uint32_t transactionId, uint32_t fragmentId) const { bool valid = false; if (!hasPendingLoadTransaction()) { LOGE("No pending load transaction exists"); } else { const FragmentedLoadInfo& info = mCurrentLoadInfo; valid = (info.hostClientId == hostClientId && info.transactionId == transactionId && info.nextFragmentId == fragmentId); if (!valid) { LOGE("Unexpected load fragment: expected host %" PRIu16 "transaction %" PRIu32 " fragment %" PRIu32 ", received host %" PRIu16 " transaction %" PRIu32 " fragment %" PRIu32, info.hostClientId, info.transactionId, info.nextFragmentId, hostClientId, transactionId, fragmentId); } } return valid; } } // namespace chre