1 // 2 // Copyright (C) 2016 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 #ifndef TRUNKS_TRUNKS_DBUS_SERVICE_H_ 18 #define TRUNKS_TRUNKS_DBUS_SERVICE_H_ 19 20 #include <memory> 21 #include <string> 22 23 #include <base/memory/weak_ptr.h> 24 #include <brillo/daemons/dbus_daemon.h> 25 #include <brillo/dbus/dbus_method_response.h> 26 #include <brillo/dbus/dbus_object.h> 27 28 #include "trunks/command_transceiver.h" 29 #include "trunks/interface.pb.h" 30 31 namespace trunks { 32 33 // TrunksDBusService registers for and handles all incoming D-Bus messages for 34 // the trunksd system daemon. 35 // 36 // Example Usage: 37 // 38 // TrunksDBusService service; 39 // service.set_transceiver(&my_transceiver); 40 // service.Run(); 41 class TrunksDBusService : public brillo::DBusServiceDaemon { 42 public: 43 TrunksDBusService(); 44 ~TrunksDBusService() override = default; 45 46 // The |transceiver| will be the target of all incoming TPM commands. This 47 // class does not take ownership of |transceiver|. 48 void set_transceiver(CommandTransceiver* transceiver) { 49 transceiver_ = transceiver; 50 } 51 52 protected: 53 // Exports D-Bus methods. 54 void RegisterDBusObjectsAsync( 55 brillo::dbus_utils::AsyncEventSequencer* sequencer) override; 56 57 private: 58 // Handles calls to the 'SendCommand' method. 59 void HandleSendCommand( 60 std::unique_ptr<brillo::dbus_utils::DBusMethodResponse< 61 const SendCommandResponse&>> response_sender, 62 const SendCommandRequest& request); 63 64 base::WeakPtr<TrunksDBusService> GetWeakPtr() { 65 return weak_factory_.GetWeakPtr(); 66 } 67 68 std::unique_ptr<brillo::dbus_utils::DBusObject> trunks_dbus_object_; 69 CommandTransceiver* transceiver_ = nullptr; 70 71 // Declared last so weak pointers are invalidated first on destruction. 72 base::WeakPtrFactory<TrunksDBusService> weak_factory_{this}; 73 DISALLOW_COPY_AND_ASSIGN(TrunksDBusService); 74 }; 75 76 } // namespace trunks 77 78 79 #endif // TRUNKS_TRUNKS_DBUS_SERVICE_H_ 80
