1 // 2 // Copyright (C) 2015 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 UPDATE_ENGINE_CROS_CONNECTION_MANAGER_INTERFACE_H_ 18 #define UPDATE_ENGINE_CROS_CONNECTION_MANAGER_INTERFACE_H_ 19 20 #include <memory> 21 22 #include <base/macros.h> 23 24 #include "update_engine/common/connection_utils.h" 25 26 namespace chromeos_update_engine { 27 28 // This class exposes a generic interface to the connection manager 29 // (e.g FlimFlam, Shill, etc.) to consolidate all connection-related 30 // logic in update_engine. 31 class ConnectionManagerInterface { 32 public: 33 virtual ~ConnectionManagerInterface() = default; 34 35 // Populates |out_type| with the type of the network connection 36 // that we are currently connected and |out_tethering| with the estimate of 37 // whether that network is being tethered. 38 virtual bool GetConnectionProperties(ConnectionType* out_type, 39 ConnectionTethering* out_tethering) = 0; 40 41 // Returns true if we're allowed to update the system when we're 42 // connected to the internet through the given network connection type and the 43 // given tethering state. 44 virtual bool IsUpdateAllowedOver(ConnectionType type, 45 ConnectionTethering tethering) const = 0; 46 47 // Returns true if the allowed connection types for update is set in the 48 // device policy. Otherwise, returns false. 49 virtual bool IsAllowedConnectionTypesForUpdateSet() const = 0; 50 51 protected: 52 ConnectionManagerInterface() = default; 53 54 private: 55 DISALLOW_COPY_AND_ASSIGN(ConnectionManagerInterface); 56 }; 57 58 namespace connection_manager { 59 // Factory function which creates a ConnectionManager. 60 std::unique_ptr<ConnectionManagerInterface> CreateConnectionManager(); 61 } // namespace connection_manager 62 63 } // namespace chromeos_update_engine 64 65 #endif // UPDATE_ENGINE_CROS_CONNECTION_MANAGER_INTERFACE_H_ 66