interface_linux.go

// {{{ Copyright (c) Paul R. Tagliamonte <paul@k3xec.com>, 2022
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE. }}}

//go:build linux

package tap

import (
	"net"

	"github.com/vishvananda/netlink"
)

// SetHardwareAddr will set the link state to up or down.
func (i Interface) SetHardwareAddr(addr net.HardwareAddr) error {
	iface := i.ps.netif
	return netlink.LinkSetHardwareAddr(iface, addr)
}

// SetUp will set the link state to up or down.
func (i Interface) SetUp(updown bool) error {
	iface := i.ps.netif
	if updown {
		return netlink.LinkSetUp(iface)
	}
	return netlink.LinkSetDown(iface)
}

// SetMTU will set the MTU for the created TAP interface.
func (i Interface) SetMTU(sz uint) error {
	iface := i.ps.netif
	return netlink.LinkSetMTU(iface, int(sz))
}

// vim: foldmethod=marker