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_CONNECTION_MANAGER_INTERFACE_H_ 18 #define UPDATE_ENGINE_CONNECTION_MANAGER_INTERFACE_H_ 19 20 #include <base/macros.h> 21 22 namespace chromeos_update_engine { 23 24 enum class NetworkConnectionType { 25 kEthernet, 26 kWifi, 27 kWimax, 28 kBluetooth, 29 kCellular, 30 kUnknown 31 }; 32 33 enum class NetworkTethering { 34 kNotDetected, 35 kSuspected, 36 kConfirmed, 37 kUnknown 38 }; 39 40 // This class exposes a generic interface to the connection manager 41 // (e.g FlimFlam, Shill, etc.) to consolidate all connection-related 42 // logic in update_engine. 43 class ConnectionManagerInterface { 44 public: 45 virtual ~ConnectionManagerInterface() = default; 46 47 // Populates |out_type| with the type of the network connection 48 // that we are currently connected and |out_tethering| with the estimate of 49 // whether that network is being tethered. 50 virtual bool GetConnectionProperties(NetworkConnectionType* out_type, 51 NetworkTethering* out_tethering) = 0; 52 53 // Returns true if we're allowed to update the system when we're 54 // connected to the internet through the given network connection type and the 55 // given tethering state. 56 virtual bool IsUpdateAllowedOver(NetworkConnectionType type, 57 NetworkTethering tethering) const = 0; 58 59 protected: 60 ConnectionManagerInterface() = default; 61 62 private: 63 DISALLOW_COPY_AND_ASSIGN(ConnectionManagerInterface); 64 }; 65 66 } // namespace chromeos_update_engine 67 68 #endif // UPDATE_ENGINE_CONNECTION_MANAGER_INTERFACE_H_ 69