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30 lines
903 B
Go
30 lines
903 B
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
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*/
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package tun
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import (
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"os"
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)
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type Event int
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const (
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EventUp = 1 << iota
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EventDown
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EventMTUUpdate
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)
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type Device interface {
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File() *os.File // returns the file descriptor of the device
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Read([]byte, int) (int, error) // read a packet from the device (without any additional headers)
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Write([]byte, int) (int, error) // writes a packet to the device (without any additional headers)
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Flush() error // flush all previous writes to the device
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MTU() (int, error) // returns the MTU of the device
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Name() (string, error) // fetches and returns the current name
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Events() chan Event // returns a constant channel of events related to the device
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Close() error // stops the device and closes the event channel
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}
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