package dialer import ( "context" "net" "runtime" "time" "github.com/sagernet/sing-box/adapter" C "github.com/sagernet/sing-box/constant" "github.com/sagernet/sing-box/option" "github.com/sagernet/sing/common/control" M "github.com/sagernet/sing/common/metadata" "github.com/database64128/tfo-go" ) type DefaultDialer struct { tfo.Dialer net.ListenConfig } func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDialer { var dialer net.Dialer var listener net.ListenConfig if options.BindInterface != "" { dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface)) listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface)) } else if router.AutoDetectInterface() { if runtime.GOOS == "windows" { dialer.Control = control.Append(dialer.Control, control.BindToInterfaceIndexFunc(func() int { return router.AutoDetectInterfaceIndex() })) listener.Control = control.Append(listener.Control, control.BindToInterfaceIndexFunc(func() int { return router.AutoDetectInterfaceIndex() })) } else { dialer.Control = control.Append(dialer.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string { return router.AutoDetectInterfaceName() })) listener.Control = control.Append(listener.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string { return router.AutoDetectInterfaceName() })) } } else if router.DefaultInterface() != "" { dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface())) listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface())) } if options.RoutingMark != 0 { dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark)) listener.Control = control.Append(listener.Control, control.RoutingMark(options.RoutingMark)) } if options.ReuseAddr { listener.Control = control.Append(listener.Control, control.ReuseAddr()) } if options.ProtectPath != "" { dialer.Control = control.Append(dialer.Control, control.ProtectPath(options.ProtectPath)) listener.Control = control.Append(listener.Control, control.ProtectPath(options.ProtectPath)) } if options.ConnectTimeout != 0 { dialer.Timeout = time.Duration(options.ConnectTimeout) } else { dialer.Timeout = C.DefaultTCPTimeout } return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener} } func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) { return d.Dialer.DialContext(ctx, network, address.String()) } func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) { return d.ListenConfig.ListenPacket(ctx, C.NetworkUDP, "") } func (d *DefaultDialer) Upstream() any { return &d.Dialer }