mirror of
https://github.com/amnezia-vpn/amneziawg-go.git
synced 2025-08-03 02:02:50 +02:00
31 lines
731 B
Go
31 lines
731 B
Go
/* SPDX-License-Identifier: MIT
|
|
*
|
|
* Copyright (C) 2017-2025 WireGuard LLC. All Rights Reserved.
|
|
*/
|
|
|
|
package conn
|
|
|
|
import (
|
|
"net"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func supportsUDPOffload(conn *net.UDPConn) (txOffload, rxOffload bool) {
|
|
rc, err := conn.SyscallConn()
|
|
if err != nil {
|
|
return
|
|
}
|
|
err = rc.Control(func(fd uintptr) {
|
|
_, errSyscall := unix.GetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_SEGMENT)
|
|
txOffload = errSyscall == nil
|
|
// getsockopt(IPPROTO_UDP, UDP_GRO) is not supported in android
|
|
// use setsockopt workaround
|
|
errSyscall = unix.SetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_GRO, 1)
|
|
rxOffload = errSyscall == nil
|
|
})
|
|
if err != nil {
|
|
return false, false
|
|
}
|
|
return txOffload, rxOffload
|
|
}
|