27290b6de3
3-way merge of amnezia-vpn/amneziawg-go (AWG2, I1-I5 CPS + S4 keepalive) into sagernet/wireguard-go@506b763185 (the base sing-box uses). Keeps sagernet's sing-box-compat additions (Send offset contract, InputPacket, conn reserved/ control) and neutralizes the encapsulating headroom (MessageEncapsulatingTransportSize=0) so obfuscation composes cleanly. Obfuscation lives in device/ (obf*.go, magic-header.go new files + send/receive/device/uapi grafts); conn/tun/ipc kept pure sagernet. LIVE-VALIDATED: handshake + keepalive + traffic against a real AmneziaWG 2.0 server.
35 lines
808 B
Go
35 lines
808 B
Go
//go:build !windows && !linux && !wasm && !plan9 && !tamago
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/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2025 WireGuard LLC. All Rights Reserved.
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*/
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package conn
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import (
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"syscall"
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"golang.org/x/sys/unix"
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)
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func init() {
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controlFns = append(controlFns,
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func(network, address string, c syscall.RawConn) error {
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return c.Control(func(fd uintptr) {
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_ = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_RCVBUF, socketBufferSize)
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_ = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_SNDBUF, socketBufferSize)
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})
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},
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func(network, address string, c syscall.RawConn) error {
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var err error
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if network == "udp6" {
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c.Control(func(fd uintptr) {
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err = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_V6ONLY, 1)
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})
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}
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return err
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},
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)
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}
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