58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
|
// +build android openbsd freebsd
|
||
|
|
|
||
|
|
/* SPDX-License-Identifier: GPL-2.0
|
||
|
|
*
|
||
|
|
* Copyright (C) 2017-2018 WireGuard LLC. All Rights Reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"golang.org/x/sys/unix"
|
||
|
|
"runtime"
|
||
|
|
)
|
||
|
|
|
||
|
|
var fwmarkIoctl int
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
switch runtime.GOOS {
|
||
|
|
case "linux", "android":
|
||
|
|
fwmarkIoctl = 36 /* unix.SO_MARK */
|
||
|
|
case "freebsd":
|
||
|
|
fwmarkIoctl = 0x1015 /* unix.SO_USER_COOKIE */
|
||
|
|
case "openbsd":
|
||
|
|
fwmarkIoctl = 0x1021 /* unix.SO_RTABLE */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (bind *NativeBind) SetMark(mark uint32) error {
|
||
|
|
if fwmarkIoctl == 0 {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
if bind.ipv4 != nil {
|
||
|
|
fd, err := bind.ipv4.SyscallConn()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
err = fd.Control(func(fd uintptr) {
|
||
|
|
err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, fwmarkIoctl, int(mark))
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if bind.ipv6 != nil {
|
||
|
|
fd, err := bind.ipv6.SyscallConn()
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
err = fd.Control(func(fd uintptr) {
|
||
|
|
err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, fwmarkIoctl, int(mark))
|
||
|
|
})
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|