| // Copyright (c) 2019 The Chromium 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 QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_INTERFACE_H_ |
| #define QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_INTERFACE_H_ |
| |
| #include <vector> |
| |
| namespace quic { |
| |
| // An interface with methods for interacting with a TUN device. |
| class TunDeviceInterface { |
| public: |
| virtual ~TunDeviceInterface() = default; |
| |
| // Actually creates/reopens and configures the device. |
| virtual bool Init() = 0; |
| |
| // Marks the interface up to start receiving packets. |
| virtual bool Up() = 0; |
| |
| // Marks the interface down to stop receiving packets. |
| virtual bool Down() = 0; |
| |
| // Closes the open file descriptor for the TUN device (if one exists). |
| // It is safe to reinitialize and reuse this TunTapDevice after calling |
| // CloseDevice. |
| virtual void CloseDevice() = 0; |
| |
| // Gets the file descriptor that can be used to send/receive packets. |
| // This returns -1 when the TUN device is in an invalid state. |
| virtual int GetFileDescriptor() const = 0; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_QBONE_BONNET_TUN_DEVICE_INTERFACE_H_ |