mirror of
https://github.com/amnezia-vpn/amneziawg-go.git
synced 2026-05-17 08:15:49 +03:00
32 lines
731 B
Go
32 lines
731 B
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
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*/
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package conn
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import (
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"net"
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"golang.org/x/sys/unix"
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)
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func supportsUDPOffload(conn *net.UDPConn) (txOffload, rxOffload bool) {
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rc, err := conn.SyscallConn()
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if err != nil {
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return
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}
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err = rc.Control(func(fd uintptr) {
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_, errSyscall := unix.GetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_SEGMENT)
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txOffload = errSyscall == nil
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// getsockopt(IPPROTO_UDP, UDP_GRO) is not supported in android
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// use setsockopt workaround
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errSyscall = unix.SetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_GRO, 1)
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rxOffload = errSyscall == nil
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})
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if err != nil {
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return false, false
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}
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return txOffload, rxOffload
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}
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