Exemplo n.º 1
0
func ListenUDP(address v2net.Address, port v2net.Port, option ListenOption) (*UDPHub, error) {
	udpConn, err := net.ListenUDP("udp", &net.UDPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	if option.ReceiveOriginalDest {
		fd, err := internal.GetSysFd(udpConn)
		if err != nil {
			log.Warning("UDP|Listener: Failed to get fd: ", err)
			return nil, err
		}
		err = SetOriginalDestOptions(fd)
		if err != nil {
			log.Warning("UDP|Listener: Failed to set socket options: ", err)
			return nil, err
		}
	}
	hub := &UDPHub{
		conn:   udpConn,
		option: option,
	}
	go hub.start()
	return hub, nil
}
Exemplo n.º 2
0
func ListenUDP(address v2net.Address, port v2net.Port, option ListenOption) (*UDPHub, error) {
	if option.Concurrency < 1 {
		option.Concurrency = 1
	}
	udpConn, err := net.ListenUDP("udp", &net.UDPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	if option.ReceiveOriginalDest {
		fd, err := internal.GetSysFd(udpConn)
		if err != nil {
			log.Warning("UDP|Listener: Failed to get fd: ", err)
			return nil, err
		}
		err = SetOriginalDestOptions(fd)
		if err != nil {
			log.Warning("UDP|Listener: Failed to set socket options: ", err)
			return nil, err
		}
	}
	hub := &UDPHub{
		conn:   udpConn,
		queue:  NewUDPPayloadQueue(option),
		option: option,
		cancel: signal.NewCloseSignal(),
	}
	go hub.start()
	return hub, nil
}
Exemplo n.º 3
0
func Dial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
	log.Info("WebSocket|Dailer: Creating connection to ", dest)
	if src == nil {
		src = v2net.AnyIP
	}
	networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
	if err != nil {
		return nil, err
	}
	wsSettings := networkSettings.(*Config)

	id := src.String() + "-" + dest.NetAddr()
	var conn *wsconn
	if dest.Network == v2net.Network_TCP && wsSettings.ConnectionReuse.IsEnabled() {
		connt := globalCache.Get(id)
		if connt != nil {
			conn = connt.(*wsconn)
		}
	}
	if conn == nil {
		var err error
		conn, err = wsDial(src, dest, options)
		if err != nil {
			log.Warning("WebSocket|Dialer: Dial failed: ", err)
			return nil, err
		}
	}
	return NewConnection(id, conn, globalCache, wsSettings), nil
}
Exemplo n.º 4
0
func writeSocks4Response(writer io.Writer, errCode byte, address v2net.Address, port v2net.Port) error {
	buffer := buf.NewLocal(32)
	buffer.AppendBytes(0x00, errCode)
	buffer.AppendSupplier(serial.WriteUint16(port.Value()))
	buffer.Append(address.IP())
	_, err := writer.Write(buffer.Bytes())
	return err
}
Exemplo n.º 5
0
func (v *Assert) Address(value net.Address) *AddressSubject {
	return &AddressSubject{
		Subject: Subject{
			disp: value.String(),
			a:    v,
		},
		value: value,
	}
}
Exemplo n.º 6
0
func (this *Assert) Address(value v2net.Address) *AddressSubject {
	return &AddressSubject{
		Subject: Subject{
			disp: value.String(),
			a:    this,
		},
		value: value,
	}
}
Exemplo n.º 7
0
func ListenRawTCP(address v2net.Address, port v2net.Port) (internet.Listener, error) {
	listener, err := net.ListenTCP("tcp", &net.TCPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	return &RawTCPListener{
		accepting: true,
		listener:  listener,
	}, nil
}
Exemplo n.º 8
0
func Dial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
	log.Info("Dailing TCP to ", dest)
	if src == nil {
		src = v2net.AnyIP
	}
	networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
	if err != nil {
		return nil, err
	}
	tcpSettings := networkSettings.(*Config)

	id := src.String() + "-" + dest.NetAddr()
	var conn net.Conn
	if dest.Network == v2net.Network_TCP && tcpSettings.ConnectionReuse.IsEnabled() {
		conn = globalCache.Get(id)
	}
	if conn == nil {
		var err error
		conn, err = internet.DialToDest(src, dest)
		if err != nil {
			return nil, err
		}
		if options.Stream != nil && options.Stream.HasSecuritySettings() {
			securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
			if err != nil {
				log.Error("TCP: Failed to get security settings: ", err)
				return nil, err
			}
			tlsConfig, ok := securitySettings.(*v2tls.Config)
			if ok {
				config := tlsConfig.GetTLSConfig()
				if dest.Address.Family().IsDomain() {
					config.ServerName = dest.Address.Domain()
				}
				conn = tls.Client(conn, config)
			}
		}
		if tcpSettings.HeaderSettings != nil {
			headerConfig, err := tcpSettings.HeaderSettings.GetInstance()
			if err != nil {
				return nil, errors.New("TCP: Failed to get header settings: " + err.Error())
			}
			auth, err := internet.CreateConnectionAuthenticator(tcpSettings.HeaderSettings.Type, headerConfig)
			if err != nil {
				return nil, errors.New("TCP: Failed to create header authenticator: " + err.Error())
			}
			conn = auth.Client(conn)
		}
	}
	return NewConnection(id, conn, globalCache, tcpSettings), nil
}
Exemplo n.º 9
0
func appendAddress(buffer *buf.Buffer, address v2net.Address, port v2net.Port) {
	switch address.Family() {
	case v2net.AddressFamilyIPv4:
		buffer.AppendBytes(0x01)
		buffer.Append(address.IP())
	case v2net.AddressFamilyIPv6:
		buffer.AppendBytes(0x04)
		buffer.Append(address.IP())
	case v2net.AddressFamilyDomain:
		buffer.AppendBytes(0x03, byte(len(address.Domain())))
		buffer.AppendSupplier(serial.WriteString(address.Domain()))
	}
	buffer.AppendSupplier(serial.WriteUint16(port.Value()))
}
Exemplo n.º 10
0
func ListenTCP(address v2net.Address, port v2net.Port) (internet.Listener, error) {
	listener, err := net.ListenTCP("tcp", &net.TCPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	l := &TCPListener{
		acccepting:    true,
		listener:      listener,
		awaitingConns: make(chan *ConnectionWithError, 32),
	}
	go l.KeepAccepting()
	return l, nil
}
Exemplo n.º 11
0
func appendAddress(request []byte, address v2net.Address) []byte {
	switch address.Family() {
	case v2net.AddressFamilyIPv4:
		request = append(request, byte(0x01))
		request = append(request, address.IP()...)

	case v2net.AddressFamilyIPv6:
		request = append(request, byte(0x04))
		request = append(request, address.IP()...)

	case v2net.AddressFamilyDomain:
		request = append(request, byte(0x03), byte(len(address.Domain())))
		request = append(request, []byte(address.Domain())...)

	}
	return request
}
Exemplo n.º 12
0
func ListenTCP(address v2net.Address, port v2net.Port, options internet.ListenOptions) (internet.Listener, error) {
	listener, err := net.ListenTCP("tcp", &net.TCPAddr{
		IP:   address.IP(),
		Port: int(port),
	})
	if err != nil {
		return nil, err
	}
	log.Info("TCP|Listener: Listening on ", address, ":", port)
	networkSettings, err := options.Stream.GetEffectiveTransportSettings()
	if err != nil {
		return nil, err
	}
	tcpSettings := networkSettings.(*Config)

	l := &TCPListener{
		acccepting:    true,
		listener:      listener,
		awaitingConns: make(chan *ConnectionWithError, 32),
		config:        tcpSettings,
	}
	if options.Stream != nil && options.Stream.HasSecuritySettings() {
		securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
		if err != nil {
			log.Error("TCP: Failed to get security config: ", err)
			return nil, err
		}
		tlsConfig, ok := securitySettings.(*v2tls.Config)
		if ok {
			l.tlsConfig = tlsConfig.GetTLSConfig()
		}
	}
	if tcpSettings.HeaderSettings != nil {
		headerConfig, err := tcpSettings.HeaderSettings.GetInstance()
		if err != nil {
			return nil, errors.Base(err).Message("Internet|TCP: Invalid header settings.")
		}
		auth, err := internet.CreateConnectionAuthenticator(headerConfig)
		if err != nil {
			return nil, errors.Base(err).Message("Internet|TCP: Invalid header settings.")
		}
		l.authConfig = auth
	}
	go l.KeepAccepting()
	return l, nil
}
Exemplo n.º 13
0
func Dial(src v2net.Address, dest v2net.Destination) (internet.Connection, error) {
	log.Info("Dailing TCP to ", dest)
	if src == nil {
		src = v2net.AnyIP
	}
	id := src.String() + "-" + dest.NetAddr()
	var conn net.Conn
	if dest.IsTCP() && effectiveConfig.ConnectionReuse {
		conn = globalCache.Get(id)
	}
	if conn == nil {
		var err error
		conn, err = internet.DialToDest(src, dest)
		if err != nil {
			return nil, err
		}
	}
	return NewConnection(id, conn, globalCache), nil
}
Exemplo n.º 14
0
func (this *DefaultSystemDialer) Dial(src v2net.Address, dest v2net.Destination) (net.Conn, error) {
	dialer := &net.Dialer{
		Timeout:   time.Second * 60,
		DualStack: true,
	}
	if src != nil && src != v2net.AnyIP {
		var addr net.Addr
		if dest.IsTCP() {
			addr = &net.TCPAddr{
				IP:   src.IP(),
				Port: 0,
			}
		} else {
			addr = &net.UDPAddr{
				IP:   src.IP(),
				Port: 0,
			}
		}
		dialer.LocalAddr = addr
	}
	return dialer.Dial(dest.Network().String(), dest.NetAddr())
}
Exemplo n.º 15
0
func Dial(src v2net.Address, dest v2net.Destination) (internet.Connection, error) {
	log.Info("WebSocket|Dailer: Creating connection to ", dest)
	if src == nil {
		src = v2net.AnyIP
	}
	id := src.String() + "-" + dest.NetAddr()
	var conn *wsconn
	if dest.IsTCP() && effectiveConfig.ConnectionReuse {
		connt := globalCache.Get(id)
		if connt != nil {
			conn = connt.(*wsconn)
		}
	}
	if conn == nil {
		var err error
		conn, err = wsDial(src, dest)
		if err != nil {
			log.Warning("WebSocket|Dialer: Dial failed: ", err)
			return nil, err
		}
	}
	return NewConnection(id, conn, globalCache), nil
}
Exemplo n.º 16
0
func (subject *AddressSubject) NotEquals(another v2net.Address) {
	if subject.value == another {
		subject.Fail("not equals to", another.String())
	}
}
Exemplo n.º 17
0
func (subject *AddressSubject) Equals(another net.Address) {
	if subject.value != another {
		subject.Fail("equals to", another.String())
	}
}
Exemplo n.º 18
0
func (subject *AddressSubject) Equals(another v2net.Address) {
	if !subject.value.Equals(another) {
		subject.Fail("equals to", another.String())
	}
}
Exemplo n.º 19
0
func (wsl *WSListener) listenws(address v2net.Address, port v2net.Port) error {
	http.HandleFunc("/"+wsl.config.Path, func(w http.ResponseWriter, r *http.Request) {
		con, err := wsl.converttovws(w, r)
		if err != nil {
			log.Warning("WebSocket|Listener: Failed to convert connection: ", err)
			return
		}

		select {
		case wsl.awaitingConns <- &ConnectionWithError{
			conn: con,
		}:
		default:
			if con != nil {
				con.Close()
			}
		}
		return
	})

	errchan := make(chan error)

	listenerfunc := func() error {
		ol, err := net.Listen("tcp", address.String()+":"+strconv.Itoa(int(port.Value())))
		if err != nil {
			return err
		}
		wsl.listener, err = NewStoppableListener(ol)
		if err != nil {
			return err
		}
		return http.Serve(wsl.listener, nil)
	}

	if wsl.tlsConfig != nil {
		listenerfunc = func() error {
			var err error
			wsl.listener, err = getstopableTLSlistener(wsl.tlsConfig, address.String()+":"+strconv.Itoa(int(port.Value())))
			if err != nil {
				return err
			}
			return http.Serve(wsl.listener, nil)
		}
	}

	go func() {
		err := listenerfunc()
		errchan <- err
		return
	}()

	var err error
	select {
	case err = <-errchan:
	case <-time.After(time.Second * 2):
		//Should this listen fail after 2 sec, it could gone untracked.
	}

	if err != nil {
		log.Error("WebSocket|Listener: Failed to serve: ", err)
	}

	return err

}