| // Copyright 2019 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 ARC_NETWORK_ARC_SERVICE_H_ |
| #define ARC_NETWORK_ARC_SERVICE_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include <base/memory/weak_ptr.h> |
| #include <shill/net/rtnl_handler.h> |
| #include <shill/net/rtnl_listener.h> |
| |
| #include "arc/network/datapath.h" |
| #include "arc/network/guest_service.h" |
| |
| namespace arc_networkd { |
| |
| class ArcService : public GuestService { |
| public: |
| class Context : public Device::Context { |
| public: |
| Context(); |
| ~Context() = default; |
| |
| // Tracks the lifetime of the ARC++ container. |
| void Start(); |
| void Stop(); |
| bool IsStarted() const; |
| |
| bool IsLinkUp() const override; |
| // Returns true if the internal state changed. |
| bool SetLinkUp(bool link_up); |
| |
| bool HasIPv6() const; |
| // Returns false if |routing_tid| is invalid. |
| bool SetHasIPv6(int routing_tid); |
| // Resets the IPv6 attributes. |
| void ClearIPv6(); |
| |
| int RoutingTableID() const; |
| // Returns the current value and increments the counter. |
| int RoutingTableAttempts(); |
| |
| private: |
| // Indicates the device was started. |
| bool started_; |
| // Indicates Android has brought up the interface. |
| bool link_up_; |
| // The routing table ID found for the interface. |
| int routing_table_id_; |
| // The number of times table ID lookup was attempted. |
| int routing_table_attempts_; |
| }; |
| |
| // |dev_mgr| and |datapath| cannot be null. |
| ArcService(DeviceManagerBase* dev_mgr, Datapath* datapath, bool is_legacy); |
| ~ArcService() = default; |
| |
| void OnStart() override; |
| void OnStop() override; |
| |
| void OnDeviceAdded(Device* device) override; |
| void OnDeviceRemoved(Device* device) override; |
| void OnDefaultInterfaceChanged(const std::string& ifname) override; |
| |
| // Handles RT netlink messages in the container net namespace and if it |
| // determines the link status has changed, toggles the device services |
| // accordingly. |
| void LinkMsgHandler(const shill::RTNLMessage& msg); |
| |
| void SetupIPv6(Device* device); |
| void TeardownIPv6(Device* device); |
| |
| // Do not use. Only for testing. |
| void SetPIDForTestingOnly(); |
| |
| private: |
| void StartDevice(Device* device); |
| void StopDevice(Device* device); |
| |
| Datapath* datapath_; |
| |
| pid_t pid_; |
| std::unique_ptr<shill::RTNLHandler> rtnl_handler_; |
| std::unique_ptr<shill::RTNLListener> link_listener_; |
| |
| base::WeakPtrFactory<ArcService> weak_factory_{this}; |
| DISALLOW_COPY_AND_ASSIGN(ArcService); |
| }; |
| |
| } // namespace arc_networkd |
| |
| #endif // ARC_NETWORK_ARC_SERVICE_H_ |