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      1 //
      2 // Copyright (C) 2012 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_H_
     18 #define UPDATE_ENGINE_CONNECTION_MANAGER_H_
     19 
     20 #include <string>
     21 
     22 #include <base/macros.h>
     23 #include <dbus/object_path.h>
     24 
     25 #include "update_engine/connection_manager_interface.h"
     26 #include "update_engine/shill_proxy_interface.h"
     27 
     28 namespace chromeos_update_engine {
     29 
     30 // This class implements the concrete class that talks with the connection
     31 // manager (shill) over DBus.
     32 // TODO(deymo): Remove this class and use ShillProvider from the UpdateManager.
     33 class ConnectionManager : public ConnectionManagerInterface {
     34  public:
     35   // Constructs a new ConnectionManager object initialized with the
     36   // given system state.
     37   ConnectionManager(ShillProxyInterface* shill_proxy,
     38                     SystemState* system_state);
     39   ~ConnectionManager() override = default;
     40 
     41   // ConnectionManagerInterface overrides.
     42   bool GetConnectionProperties(ConnectionType* out_type,
     43                                ConnectionTethering* out_tethering) override;
     44   bool IsUpdateAllowedOver(ConnectionType type,
     45                            ConnectionTethering tethering) const override;
     46 
     47  private:
     48   // Returns (via out_path) the default network path, or empty string if
     49   // there's no network up. Returns true on success.
     50   bool GetDefaultServicePath(dbus::ObjectPath* out_path);
     51 
     52   bool GetServicePathProperties(const dbus::ObjectPath& path,
     53                                 ConnectionType* out_type,
     54                                 ConnectionTethering* out_tethering);
     55 
     56   // The mockable interface to access the shill DBus proxies.
     57   std::unique_ptr<ShillProxyInterface> shill_proxy_;
     58 
     59   // The global context for update_engine.
     60   SystemState* system_state_;
     61 
     62   DISALLOW_COPY_AND_ASSIGN(ConnectionManager);
     63 };
     64 
     65 }  // namespace chromeos_update_engine
     66 
     67 #endif  // UPDATE_ENGINE_CONNECTION_MANAGER_H_
     68