mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-10 02:53:12 +00:00
91 lines
3.5 KiB
Go
91 lines
3.5 KiB
Go
package dialer
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import (
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"context"
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"net"
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"runtime"
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"time"
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"github.com/sagernet/sing-box/adapter"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/control"
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M "github.com/sagernet/sing/common/metadata"
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"github.com/database64128/tfo-go"
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)
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type DefaultDialer struct {
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tfo.Dialer
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net.ListenConfig
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}
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func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDialer {
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var dialer net.Dialer
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var listener net.ListenConfig
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if options.BindInterface != "" {
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dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface))
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listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface))
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} else if router.AutoDetectInterface() {
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if runtime.GOOS == "windows" {
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dialer.Control = control.Append(dialer.Control, control.BindToInterfaceIndexFunc(func() int {
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return router.AutoDetectInterfaceIndex()
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}))
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listener.Control = control.Append(listener.Control, control.BindToInterfaceIndexFunc(func() int {
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return router.AutoDetectInterfaceIndex()
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}))
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} else {
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dialer.Control = control.Append(dialer.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
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return router.AutoDetectInterfaceName()
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}))
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listener.Control = control.Append(listener.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
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return router.AutoDetectInterfaceName()
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}))
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}
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} else if router.DefaultInterface() != "" {
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dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
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listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
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}
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if options.RoutingMark != 0 {
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dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark))
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listener.Control = control.Append(listener.Control, control.RoutingMark(options.RoutingMark))
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} else if router.DefaultMark() != 0 {
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dialer.Control = control.Append(dialer.Control, control.RoutingMark(router.DefaultMark()))
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listener.Control = control.Append(listener.Control, control.RoutingMark(router.DefaultMark()))
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}
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if options.ReuseAddr {
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listener.Control = control.Append(listener.Control, control.ReuseAddr())
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}
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if options.ProtectPath != "" {
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dialer.Control = control.Append(dialer.Control, control.ProtectPath(options.ProtectPath))
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listener.Control = control.Append(listener.Control, control.ProtectPath(options.ProtectPath))
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}
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if options.ConnectTimeout != 0 {
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dialer.Timeout = time.Duration(options.ConnectTimeout)
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} else {
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dialer.Timeout = C.DefaultTCPTimeout
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}
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return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
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}
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func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
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conn, err := d.Dialer.DialContext(ctx, network, address.Unwrap().String())
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if err != nil {
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return nil, err
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}
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if tcpConn, isTCP := common.Cast[*net.TCPConn](conn); isTCP {
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tcpConn.SetKeepAlive(true)
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tcpConn.SetKeepAlivePeriod(C.DefaultTCPKeepAlivePeriod)
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}
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return conn, nil
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}
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func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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return d.ListenConfig.ListenPacket(ctx, C.NetworkUDP, "")
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}
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func (d *DefaultDialer) Upstream() any {
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return &d.Dialer
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}
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