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