shill/vpn/vpn_service.h

// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SHILL_VPN_VPN_SERVICE_H_
#define SHILL_VPN_VPN_SERVICE_H_

#include <memory>
#include <string>

#include <gtest/gtest_prod.h>  // for FRIEND_TEST

#include "shill/connection.h"
#include "shill/service.h"

namespace shill {

class KeyValueStore;
class VPNDriver;

class VPNService : public Service {
 public:
  VPNService(ControlInterface *control,
             EventDispatcher *dispatcher,
             Metrics *metrics,
             Manager *manager,
             VPNDriver *driver);  // Takes ownership of |driver|.
  ~VPNService() override;

  // Inherited from Service.
  void Connect(Error *error, const char *reason) override;
  void Disconnect(Error *error, const char *reason) override;
  std::string GetStorageIdentifier() const override;
  bool Load(StoreInterface *storage) override;
  bool Save(StoreInterface *storage) override;
  bool Unload() override;
  void EnableAndRetainAutoConnect() override;
  void SetConnection(const ConnectionRefPtr &connection) override;
  bool SetNameProperty(const std::string &name, Error *error) override;

  virtual void InitDriverPropertyStore();

  VPNDriver *driver() const { return driver_.get(); }

  static std::string CreateStorageIdentifier(const KeyValueStore &args,
                                             Error *error);
  void set_storage_id(const std::string &id) { storage_id_ = id; }

 protected:
  // Inherited from Service.
  bool IsAutoConnectable(const char **reason) const override;
  std::string GetTethering(Error *error) const override;

 private:
  friend class VPNServiceTest;
  FRIEND_TEST(VPNServiceTest, GetDeviceRpcId);
  FRIEND_TEST(VPNServiceTest, SetConnection);
  FRIEND_TEST(VPNServiceTest, GetPhysicalTechnologyPropertyFailsIfNoCarrier);
  FRIEND_TEST(VPNServiceTest, GetPhysicalTechnologyPropertyOverWifi);
  FRIEND_TEST(VPNServiceTest, GetTethering);

  static const char kAutoConnNeverConnected[];
  static const char kAutoConnVPNAlreadyActive[];

  std::string GetDeviceRpcId(Error *error) const override;

  // Returns the Type name of the lowest connection (presumably the "physical"
  // connection) that this service depends on.
  std::string GetPhysicalTechnologyProperty(Error *error);

  std::string storage_id_;
  std::unique_ptr<VPNDriver> driver_;
  std::unique_ptr<Connection::Binder> connection_binder_;

  // Provided only for compatibility.  crbug.com/211858
  std::string vpn_domain_;

  DISALLOW_COPY_AND_ASSIGN(VPNService);
};

}  // namespace shill

#endif  // SHILL_VPN_VPN_SERVICE_H_