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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
*/
package device
import (
"golang.org/x/sys/unix"
)
func (device *Device) BindSocketToInterface4(interfaceIndex uint32) error {
sysconn, err := device.net.bind.(*nativeBind).ipv4.SyscallConn()
if err != nil {
return nil
}
err2 := sysconn.Control(func(fd uintptr) {
err = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, int(interfaceIndex))
})
if err2 != nil {
return err2
}
if err != nil {
return err
}
return nil
}
func (device *Device) BindSocketToInterface6(interfaceIndex uint32) error {
sysconn, err := device.net.bind.(*nativeBind).ipv4.SyscallConn()
if err != nil {
return nil
}
err2 := sysconn.Control(func(fd uintptr) {
err = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, int(interfaceIndex))
})
if err2 != nil {
return err2
}
if err != nil {
return err
}
return nil
}
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