// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !linux

package net

import (
	"context"
)

func (sd *sysDialer) dialMPTCP(ctx context.Context, laddr, raddr *TCPAddr) (*TCPConn, error) {
	return sd.dialTCP(ctx, laddr, raddr)
}

func (sl *sysListener) listenMPTCP(ctx context.Context, laddr *TCPAddr) (*TCPListener, error) {

		mptcpAvailable = true
	}

	major, minor := unix.KernelVersion()
	// SOL_MPTCP only supported from kernel 5.16
	hasSOLMPTCP = major > 5 || (major == 5 && minor >= 16)
}

func (sd *sysDialer) dialMPTCP(ctx context.Context, laddr, raddr *TCPAddr) (*TCPConn, error) {
	if supportsMultipathTCP() {
		if conn, err := sd.doDialTCPProto(ctx, laddr, raddr, _IPPROTO_MPTCP); err == nil {
			return conn, nil
		}
	}

			defer func() { trace.ConnectDone(sd.network, raStr, err) }()
		}
	}
	la := sd.LocalAddr
	switch ra := ra.(type) {
	case *TCPAddr:
		la, _ := la.(*TCPAddr)
		if sd.MultipathTCP() {
			c, err = sd.dialMPTCP(ctx, la, ra)
		} else {
			c, err = sd.dialTCP(ctx, la, ra)
		}
	case *UDPAddr:
		la, _ := la.(*UDPAddr)
		c, err = sd.dialUDP(ctx, la, ra)
	case *IPAddr:
		la, _ := la.(*IPAddr)