1 /* 2 * Copyright 2020 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 #pragma once 18 19 #include "gatekeeper/gatekeeper_messages.h" 20 21 #include "common/libs/fs/shared_fd.h" 22 #include "common/libs/security/gatekeeper_channel.h" 23 24 namespace cuttlefish { 25 /* 26 * Interface for communication channels that synchronously communicate 27 * Gatekeeper IPC/RPC calls. Sends messages over a file descriptor. 28 */ 29 class SharedFdGatekeeperChannel : public GatekeeperChannel { 30 public: 31 SharedFdGatekeeperChannel(SharedFD input, SharedFD output); 32 33 bool SendRequest(uint32_t command, 34 const gatekeeper::GateKeeperMessage& message) override; 35 bool SendResponse(uint32_t command, 36 const gatekeeper::GateKeeperMessage& message) override; 37 ManagedGatekeeperMessage ReceiveMessage() override; 38 39 private: 40 SharedFD input_; 41 SharedFD output_; 42 bool SendMessage(uint32_t command, bool response, 43 const gatekeeper::GateKeeperMessage& message); 44 }; 45 46 } // namespace cuttlefish