wireguard-go/tun/tun.go
Jason A. Donenfeld d4112d9096 global: bump copyright
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-28 17:52:15 +01:00

30 lines
903 B
Go

/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package tun
import (
"os"
)
type Event int
const (
EventUp = 1 << iota
EventDown
EventMTUUpdate
)
type Device interface {
File() *os.File // returns the file descriptor of the device
Read([]byte, int) (int, error) // read a packet from the device (without any additional headers)
Write([]byte, int) (int, error) // writes a packet to the device (without any additional headers)
Flush() error // flush all previous writes to the device
MTU() (int, error) // returns the MTU of the device
Name() (string, error) // fetches and returns the current name
Events() chan Event // returns a constant channel of events related to the device
Close() error // stops the device and closes the event channel
}