45 lines
955 B
Go
45 lines
955 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 device
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import (
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"golang.org/x/sys/unix"
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)
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func (device *Device) BindSocketToInterface4(interfaceIndex uint32) error {
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sysconn, err := device.net.bind.(*nativeBind).ipv4.SyscallConn()
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if err != nil {
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return nil
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}
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err2 := sysconn.Control(func(fd uintptr) {
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err = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, int(interfaceIndex))
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})
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if err2 != nil {
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return err2
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}
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if err != nil {
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return err
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}
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return nil
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}
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func (device *Device) BindSocketToInterface6(interfaceIndex uint32) error {
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sysconn, err := device.net.bind.(*nativeBind).ipv4.SyscallConn()
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if err != nil {
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return nil
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}
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err2 := sysconn.Control(func(fd uintptr) {
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err = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, int(interfaceIndex))
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})
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if err2 != nil {
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return err2
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}
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if err != nil {
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return err
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}
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return nil
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}
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