1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef CLIENT_TRANS_UDP_STREAM_ADAPTOR_H_ 17 #define CLIENT_TRANS_UDP_STREAM_ADAPTOR_H_ 18 19 #include <atomic> 20 #include <sys/types.h> 21 #include <utility> 22 23 #include "client_trans_udp_stream_interface.h" 24 #include "i_stream_manager.h" 25 #include "securec.h" 26 #include "softbus_adapter_crypto.h" 27 #include "stream_common.h" 28 29 namespace OHOS { 30 class StreamAdaptor : public std::enable_shared_from_this<StreamAdaptor> { 31 public: 32 StreamAdaptor() = delete; 33 explicit StreamAdaptor(const std::string &pkgName); ~StreamAdaptor()34 ~StreamAdaptor() 35 { 36 if (sessionKey_.first != nullptr) { 37 (void)memset_s(sessionKey_.first, sessionKey_.second, 0, sessionKey_.second); 38 delete [] sessionKey_.first; 39 } 40 sessionKey_.first = nullptr; 41 } 42 43 static ssize_t Encrypt(const void *in, ssize_t inLen, void *out, ssize_t outLen, 44 std::pair<uint8_t*, uint32_t> sessionKey); 45 static ssize_t Decrypt(const void *in, ssize_t inLen, void *out, ssize_t outLen, 46 std::pair<uint8_t*, uint32_t> sessionKey); 47 static ssize_t GetEncryptOverhead(); 48 int GetStreamType(); 49 const std::pair<uint8_t*, uint32_t> GetSessionKey(); 50 int64_t GetChannelId(); 51 const IStreamListener *GetListenerCallback(); 52 std::shared_ptr<Communication::SoftBus::IStreamManager> GetStreamManager(); 53 void SetAliveState(bool state); 54 void InitAdaptor(int32_t channelId, const VtpStreamOpenParam *param, bool isServerSide, 55 const IStreamListener *callback); 56 void ReleaseAdaptor(); 57 bool GetAliveState(); 58 bool IsEncryptedRawStream(); 59 60 private: 61 int64_t channelId_ = -1; 62 std::atomic<bool> aliveState_ = {false}; 63 std::shared_ptr<Communication::SoftBus::IStreamManager> streamManager_ = nullptr; 64 int streamType_ = StreamType::INVALID; 65 bool serverSide_; 66 std::string pkgName_ {}; 67 std::pair<uint8_t*, uint32_t> sessionKey_ = std::make_pair(nullptr, 0); 68 const IStreamListener *callback_ = nullptr; 69 std::atomic<bool> enableState_ = {false}; 70 bool isRawStreamEncrypt_ = {false}; 71 }; 72 } // namespace OHOS 73 74 #endif // !defined(CLIENT_TRANS_UDP_STREAM_ADAPTOR_H_