Beispiel #1
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
}
Beispiel #2
0
func (v *IPv4Matcher) Apply(ctx context.Context) bool {
	ips := make([]net.IP, 0, 4)
	if resolveIPs, ok := proxy.ResolvedIPsFromContext(ctx); ok {
		for _, rip := range resolveIPs {
			if !rip.Family().IsIPv4() {
				continue
			}
			ips = append(ips, rip.IP())
		}
	}

	var dest v2net.Destination
	if v.onSource {
		dest = proxy.SourceFromContext(ctx)
	} else {
		dest = proxy.DestinationFromContext(ctx)
	}

	if dest.IsValid() && dest.Address.Family().IsIPv4() {
		ips = append(ips, dest.Address.IP())
	}

	for _, ip := range ips {
		if v.ipv4net.Contains(ip) {
			return true
		}
	}
	return false
}
Beispiel #3
0
func (this *PlainDomainMatcher) Apply(dest v2net.Destination) bool {
	if !dest.Address().Family().IsDomain() {
		return false
	}
	domain := dest.Address().Domain()
	return strings.Contains(domain, this.pattern)
}
Beispiel #4
0
func (this *RegexpDomainMatcher) Apply(dest v2net.Destination) bool {
	if !dest.Address().Family().IsDomain() {
		return false
	}
	domain := dest.Address().Domain()
	return this.pattern.MatchString(strings.ToLower(domain))
}
Beispiel #5
0
func wsDial(src v2net.Address, dest v2net.Destination) (*wsconn, error) {
	commonDial := func(network, addr string) (net.Conn, error) {
		return internet.DialToDest(src, dest)
	}

	tlsconf := &tls.Config{ServerName: dest.Address().Domain(), InsecureSkipVerify: effectiveConfig.DeveloperInsecureSkipVerify}

	dialer := websocket.Dialer{NetDial: commonDial, ReadBufferSize: 65536, WriteBufferSize: 65536, TLSClientConfig: tlsconf}

	effpto := calcPto(dest)

	uri := func(dst v2net.Destination, pto string, path string) string {
		return fmt.Sprintf("%v://%v/%v", pto, dst.NetAddr(), path)
	}(dest, effpto, effectiveConfig.Path)

	conn, resp, err := dialer.Dial(uri, nil)
	if err != nil {
		if resp != nil {
			reason, reasonerr := ioutil.ReadAll(resp.Body)
			log.Info(string(reason), reasonerr)
		}
		return nil, err
	}
	return func() internet.Connection {
		connv2ray := &wsconn{wsc: conn, connClosing: false}
		connv2ray.setup()
		return connv2ray
	}().(*wsconn), nil
}
Beispiel #6
0
func (this *FreedomConnection) Dispatch(destination v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
	log.Info("Freedom: Opening connection to ", destination)

	defer payload.Release()
	defer ray.OutboundInput().Release()
	defer ray.OutboundOutput().Close()

	var conn internet.Connection
	if this.domainStrategy == DomainStrategyUseIP && destination.Address().Family().IsDomain() {
		destination = this.ResolveIP(destination)
	}
	err := retry.Timed(5, 100).On(func() error {
		rawConn, err := internet.Dial(this.meta.Address, destination, this.meta.StreamSettings)
		if err != nil {
			return err
		}
		conn = rawConn
		return nil
	})
	if err != nil {
		log.Warning("Freedom: Failed to open connection to ", destination, ": ", err)
		return err
	}
	defer conn.Close()

	input := ray.OutboundInput()
	output := ray.OutboundOutput()

	if !payload.IsEmpty() {
		conn.Write(payload.Value)
	}

	go func() {
		v2writer := v2io.NewAdaptiveWriter(conn)
		defer v2writer.Release()

		v2io.Pipe(input, v2writer)
		if tcpConn, ok := conn.(*tcp.RawConnection); ok {
			tcpConn.CloseWrite()
		}
	}()

	var reader io.Reader = conn

	timeout := this.timeout
	if destination.IsUDP() {
		timeout = 16
	}
	if timeout > 0 {
		reader = v2net.NewTimeOutReader(int(timeout) /* seconds */, conn)
	}

	v2reader := v2io.NewAdaptiveReader(reader)
	v2io.Pipe(v2reader, output)
	v2reader.Release()
	ray.OutboundOutput().Close()

	return nil
}
Beispiel #7
0
func socks5UDPRequest(address v2net.Destination, payload []byte) []byte {
	request := make([]byte, 0, 1024)
	request = append(request, 0, 0, 0)
	request = appendAddress(request, address.Address())
	request = address.Port().Bytes(request)
	request = append(request, payload...)
	return request
}
Beispiel #8
0
func (v *Assert) Destination(value v2net.Destination) *DestinationSubject {
	return &DestinationSubject{
		Subject: Subject{
			disp: value.String(),
			a:    v,
		},
		value: value,
	}
}
Beispiel #9
0
func (this *Router) TakeDetour(dest v2net.Destination) (string, error) {
	destStr := dest.String()
	found, tag, err := this.cache.Get(destStr)
	if !found {
		tag, err := this.takeDetourWithoutCache(dest)
		this.cache.Set(destStr, tag, err)
		return tag, err
	}
	return tag, err
}
Beispiel #10
0
func (this *VMessOutboundHandler) handleCommand(dest v2net.Destination, cmd protocol.ResponseCommand) {
	switch typedCommand := cmd.(type) {
	case *protocol.CommandSwitchAccount:
		if typedCommand.Host == nil {
			typedCommand.Host = dest.Address()
		}
		this.handleSwitchAccount(typedCommand)
	default:
	}
}
Beispiel #11
0
func wsDial(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (*wsconn, error) {
	networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
	if err != nil {
		return nil, err
	}
	wsSettings := networkSettings.(*Config)

	commonDial := func(network, addr string) (net.Conn, error) {
		return internet.DialToDest(src, dest)
	}

	dialer := websocket.Dialer{
		NetDial:         commonDial,
		ReadBufferSize:  65536,
		WriteBufferSize: 65536,
	}

	protocol := "ws"

	if options.Stream != nil && options.Stream.HasSecuritySettings() {
		protocol = "wss"
		securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
		if err != nil {
			log.Error("WebSocket: Failed to create security settings: ", err)
			return nil, err
		}
		tlsConfig, ok := securitySettings.(*v2tls.Config)
		if ok {
			dialer.TLSClientConfig = tlsConfig.GetTLSConfig()
			if dest.Address.Family().IsDomain() {
				dialer.TLSClientConfig.ServerName = dest.Address.Domain()
			}
		}
	}

	uri := protocol + "://" + dest.NetAddr() + "/" + wsSettings.Path

	conn, resp, err := dialer.Dial(uri, nil)
	if err != nil {
		if resp != nil {
			reason, reasonerr := ioutil.ReadAll(resp.Body)
			log.Info(string(reason), reasonerr)
		}
		return nil, err
	}
	return func() internet.Connection {
		connv2ray := &wsconn{
			wsc:         conn,
			connClosing: false,
			config:      wsSettings,
		}
		connv2ray.setup()
		return connv2ray
	}().(*wsconn), nil
}
Beispiel #12
0
func (v *Dispatcher) getInboundRay(ctx context.Context, dest v2net.Destination) (ray.InboundRay, bool) {
	destString := dest.String()
	v.Lock()
	defer v.Unlock()

	if entry, found := v.conns[destString]; found {
		return entry, true
	}

	log.Info("UDP|Server: establishing new connection for ", dest)
	ctx = proxy.ContextWithDestination(ctx, dest)
	return v.packetDispatcher.DispatchToOutbound(ctx), false
}
Beispiel #13
0
func wsDial(ctx context.Context, dest v2net.Destination) (*wsconn, error) {
	src := internet.DialerSourceFromContext(ctx)
	wsSettings := internet.TransportSettingsFromContext(ctx).(*Config)

	commonDial := func(network, addr string) (net.Conn, error) {
		return internet.DialSystem(src, dest)
	}

	dialer := websocket.Dialer{
		NetDial:         commonDial,
		ReadBufferSize:  32 * 1024,
		WriteBufferSize: 32 * 1024,
	}

	protocol := "ws"

	if securitySettings := internet.SecuritySettingsFromContext(ctx); securitySettings != nil {
		tlsConfig, ok := securitySettings.(*v2tls.Config)
		if ok {
			protocol = "wss"
			dialer.TLSClientConfig = tlsConfig.GetTLSConfig()
			if dest.Address.Family().IsDomain() {
				dialer.TLSClientConfig.ServerName = dest.Address.Domain()
			}
		}
	}

	host := dest.NetAddr()
	if (protocol == "ws" && dest.Port == 80) || (protocol == "wss" && dest.Port == 443) {
		host = dest.Address.String()
	}
	uri := protocol + "://" + host + "/" + wsSettings.Path

	conn, resp, err := dialer.Dial(uri, nil)
	if err != nil {
		if resp != nil {
			reason, reasonerr := ioutil.ReadAll(resp.Body)
			log.Info(string(reason), reasonerr)
		}
		return nil, err
	}
	return func() internet.Connection {
		connv2ray := &wsconn{
			wsc:         conn,
			connClosing: false,
			config:      wsSettings,
		}
		connv2ray.setup()
		return connv2ray
	}().(*wsconn), nil
}
Beispiel #14
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
}
Beispiel #15
0
func (v *Dispatcher) Dispatch(ctx context.Context, destination v2net.Destination, payload *buf.Buffer, callback ResponseCallback) {
	// TODO: Add user to destString
	destString := destination.String()
	log.Debug("UDP|Server: Dispatch request: ", destString)

	inboundRay, existing := v.getInboundRay(ctx, destination)
	outputStream := inboundRay.InboundInput()
	if outputStream != nil {
		if err := outputStream.Write(payload); err != nil {
			v.RemoveRay(destString)
		}
	}
	if !existing {
		go func() {
			handleInput(inboundRay.InboundOutput(), callback)
			v.RemoveRay(destString)
		}()
	}
}
Beispiel #16
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
}
Beispiel #17
0
func DialKCP(src v2net.Address, dest v2net.Destination) (internet.Connection, error) {
	udpDest := v2net.UDPDestination(dest.Address(), dest.Port())
	log.Info("KCP|Dialer: Dialing KCP to ", udpDest)
	conn, err := internet.DialToDest(src, udpDest)
	if err != nil {
		log.Error("KCP|Dialer: Failed to dial to dest: ", err)
		return nil, err
	}

	cpip, err := effectiveConfig.GetAuthenticator()
	if err != nil {
		log.Error("KCP|Dialer: Failed to create authenticator: ", err)
		return nil, err
	}
	conv := uint16(atomic.AddUint32(&globalConv, 1))
	session := NewConnection(conv, conn, conn.LocalAddr().(*net.UDPAddr), conn.RemoteAddr().(*net.UDPAddr), cpip)
	session.FetchInputFrom(conn)

	return session, nil
}
Beispiel #18
0
func calcPto(dst v2net.Destination) string {

	if effectiveConfig.Pto != "" {
		return effectiveConfig.Pto
	}

	switch dst.Port().Value() {
	/*
		Since the value is not given explicitly,
		We are guessing it now.

		HTTP Port:
				80
				8080
				8880
				2052
				2082
				2086
				2095

		HTTPS Port:
				443
				2053
				2083
				2087
				2096
				8443

		if the port you are using is not well-known,
		specify it to avoid this process.

		We will	return "CRASH"turn "unknown" if we can't guess it, cause Dial to fail.
	*/
	case 80, 8080, 8880, 2052, 2082, 2086, 2095:
		return "ws"
	case 443, 2053, 2083, 2087, 2096, 8443:
		return "wss"
	default:
		return "unknown"
	}
}
Beispiel #19
0
func DialKCP(ctx context.Context, dest v2net.Destination) (internet.Connection, error) {
	dest.Network = v2net.Network_UDP
	log.Info("KCP|Dialer: Dialing KCP to ", dest)

	src := internet.DialerSourceFromContext(ctx)
	id := internal.NewConnectionID(src, dest)
	conn := globalPool.Get(id)
	if conn == nil {
		rawConn, err := internet.DialSystem(src, dest)
		if err != nil {
			log.Error("KCP|Dialer: Failed to dial to dest: ", err)
			return nil, err
		}
		c := &ClientConnection{
			Conn: rawConn,
			id:   id,
		}
		go c.Run()
		conn = c
	}

	kcpSettings := internet.TransportSettingsFromContext(ctx).(*Config)

	clientConn := conn.(*ClientConnection)
	header, err := kcpSettings.GetPackerHeader()
	if err != nil {
		return nil, errors.Base(err).Message("KCP|Dialer: Failed to create packet header.")
	}
	security, err := kcpSettings.GetSecurity()
	if err != nil {
		return nil, errors.Base(err).Message("KCP|Dialer: Failed to create security.")
	}
	clientConn.ResetSecurity(header, security)
	conv := uint16(atomic.AddUint32(&globalConv, 1))
	session := NewConnection(conv, clientConn, globalPool, kcpSettings)

	var iConn internet.Connection
	iConn = session

	if securitySettings := internet.SecuritySettingsFromContext(ctx); securitySettings != nil {
		switch securitySettings := securitySettings.(type) {
		case *v2tls.Config:
			config := securitySettings.GetTLSConfig()
			if dest.Address.Family().IsDomain() {
				config.ServerName = dest.Address.Domain()
			}
			tlsConn := tls.Client(iConn, config)
			iConn = UnreusableConnection{Conn: tlsConn}
		}
	}

	return iConn, nil
}
Beispiel #20
0
// Private: Visible for testing.
func (this *FreedomConnection) ResolveIP(destination v2net.Destination) v2net.Destination {
	if !destination.Address().Family().IsDomain() {
		return destination
	}

	ips := this.dns.Get(destination.Address().Domain())
	if len(ips) == 0 {
		log.Info("Freedom: DNS returns nil answer. Keep domain as is.")
		return destination
	}

	ip := ips[dice.Roll(len(ips))]
	var newDest v2net.Destination
	if destination.IsTCP() {
		newDest = v2net.TCPDestination(v2net.IPAddress(ip), destination.Port())
	} else {
		newDest = v2net.UDPDestination(v2net.IPAddress(ip), destination.Port())
	}
	log.Info("Freedom: Changing destination from ", destination, " to ", newDest)
	return newDest
}
Beispiel #21
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.Network == v2net.Network_TCP {
			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.SystemString(), dest.NetAddr())
}
Beispiel #22
0
func (this *VMessOutboundHandler) Dispatch(target v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
	defer ray.OutboundInput().Release()
	defer ray.OutboundOutput().Close()

	var rec *protocol.ServerSpec
	var conn internet.Connection

	err := retry.Timed(5, 100).On(func() error {
		rec = this.serverPicker.PickServer()
		rawConn, err := internet.Dial(this.meta.Address, rec.Destination(), this.meta.StreamSettings)
		if err != nil {
			return err
		}
		conn = rawConn

		return nil
	})
	if err != nil {
		log.Error("VMess|Outbound: Failed to find an available destination:", err)
		return err
	}
	log.Info("VMess|Outbound: Tunneling request to ", target, " via ", rec.Destination())

	command := protocol.RequestCommandTCP
	if target.IsUDP() {
		command = protocol.RequestCommandUDP
	}
	request := &protocol.RequestHeader{
		Version: encoding.Version,
		User:    rec.PickUser(),
		Command: command,
		Address: target.Address(),
		Port:    target.Port(),
		Option:  protocol.RequestOptionChunkStream,
	}

	defer conn.Close()

	conn.SetReusable(true)
	if conn.Reusable() { // Conn reuse may be disabled on transportation layer
		request.Option.Set(protocol.RequestOptionConnectionReuse)
	}

	input := ray.OutboundInput()
	output := ray.OutboundOutput()

	var requestFinish, responseFinish sync.Mutex
	requestFinish.Lock()
	responseFinish.Lock()

	session := encoding.NewClientSession(protocol.DefaultIDHash)

	go this.handleRequest(session, conn, request, payload, input, &requestFinish)
	go this.handleResponse(session, conn, request, rec.Destination(), output, &responseFinish)

	requestFinish.Lock()
	responseFinish.Lock()
	return nil
}
Beispiel #23
0
// Private: Visible for testing.
func (this *Router) ResolveIP(dest v2net.Destination) []v2net.Destination {
	ips := this.dnsServer.Get(dest.Address().Domain())
	if len(ips) == 0 {
		return nil
	}
	dests := make([]v2net.Destination, len(ips))
	for idx, ip := range ips {
		if dest.IsTCP() {
			dests[idx] = v2net.TCPDestination(v2net.IPAddress(ip), dest.Port())
		} else {
			dests[idx] = v2net.UDPDestination(v2net.IPAddress(ip), dest.Port())
		}
	}
	return dests
}
Beispiel #24
0
func (this *Router) takeDetourWithoutCache(dest v2net.Destination) (string, error) {
	for _, rule := range this.config.Rules {
		if rule.Apply(dest) {
			return rule.Tag, nil
		}
	}
	if this.config.DomainStrategy == UseIPIfNonMatch && dest.Address().Family().IsDomain() {
		log.Info("Router: Looking up IP for ", dest)
		ipDests := this.ResolveIP(dest)
		if ipDests != nil {
			for _, ipDest := range ipDests {
				log.Info("Router: Trying IP ", ipDest)
				for _, rule := range this.config.Rules {
					if rule.Apply(ipDest) {
						return rule.Tag, nil
					}
				}
			}
		}
	}

	return "", ErrNoRuleApplicable
}
Beispiel #25
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
}
Beispiel #26
0
func (w *udpWorker) callback(b *buf.Buffer, source v2net.Destination, originalDest v2net.Destination) {
	conn, existing := w.getConnection(source)
	conn.input <- b.Bytes()

	if !existing {
		go func() {
			ctx := w.ctx
			ctx, cancel := context.WithCancel(ctx)
			conn.cancel = cancel
			if originalDest.IsValid() {
				ctx = proxy.ContextWithOriginalDestination(ctx, originalDest)
			}
			if len(w.tag) > 0 {
				ctx = proxy.ContextWithInboundTag(ctx, w.tag)
			}
			ctx = proxy.ContextWithSource(ctx, source)
			ctx = proxy.ContextWithInboundDestination(ctx, v2net.UDPDestination(w.address, w.port))
			w.proxy.Process(ctx, v2net.Network_UDP, conn)
			w.removeConn(source)
			cancel()
		}()
	}
}
Beispiel #27
0
func DialKCP(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
	dest.Network = v2net.Network_UDP
	log.Info("KCP|Dialer: Dialing KCP to ", dest)
	conn, err := internet.DialToDest(src, dest)
	if err != nil {
		log.Error("KCP|Dialer: Failed to dial to dest: ", err)
		return nil, err
	}

	networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
	if err != nil {
		log.Error("KCP|Dialer: Failed to get KCP settings: ", err)
		return nil, err
	}
	kcpSettings := networkSettings.(*Config)

	cpip, err := kcpSettings.GetAuthenticator()
	if err != nil {
		log.Error("KCP|Dialer: Failed to create authenticator: ", err)
		return nil, err
	}
	conv := uint16(atomic.AddUint32(&globalConv, 1))
	session := NewConnection(conv, conn, conn.LocalAddr().(*net.UDPAddr), conn.RemoteAddr().(*net.UDPAddr), cpip, kcpSettings)
	session.FetchInputFrom(conn)

	var iConn internet.Connection
	iConn = session

	if options.Stream != nil && options.Stream.HasSecuritySettings() {
		securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
		if err != nil {
			log.Error("KCP|Dialer: Failed to get security settings: ", err)
			return nil, err
		}
		switch securitySettings := securitySettings.(type) {
		case *v2tls.Config:
			config := securitySettings.GetTLSConfig()
			if dest.Address.Family().IsDomain() {
				config.ServerName = dest.Address.Domain()
			}
			tlsConn := tls.Client(conn, config)
			iConn = v2tls.NewConnection(tlsConn)
		}
	}

	return iConn, nil
}
Beispiel #28
0
func Dial(src v2net.Address, dest v2net.Destination, settings *StreamSettings) (Connection, error) {

	var connection Connection
	var err error
	if dest.IsTCP() {
		switch {
		case settings.IsCapableOf(StreamConnectionTypeTCP):
			connection, err = TCPDialer(src, dest)
		case settings.IsCapableOf(StreamConnectionTypeKCP):
			connection, err = KCPDialer(src, dest)
		case settings.IsCapableOf(StreamConnectionTypeWebSocket):
			connection, err = WSDialer(src, dest)

		/*Warning: Hours wasted: the following item must be last one

		internet.StreamConnectionType have a default value of 1,
		so the following attempt will catch all.
		*/

		case settings.IsCapableOf(StreamConnectionTypeRawTCP):
			connection, err = RawTCPDialer(src, dest)
		default:
			return nil, ErrUnsupportedStreamType
		}
		if err != nil {
			return nil, err
		}

		if settings.Security == StreamSecurityTypeNone {
			return connection, nil
		}

		config := settings.TLSSettings.GetTLSConfig()
		if dest.Address().Family().IsDomain() {
			config.ServerName = dest.Address().Domain()
		}
		tlsConn := tls.Client(connection, config)
		return v2tls.NewConnection(tlsConn), nil
	}

	return UDPDialer(src, dest)
}
Beispiel #29
0
func DialKCP(src v2net.Address, dest v2net.Destination, options internet.DialerOptions) (internet.Connection, error) {
	dest.Network = v2net.Network_UDP
	log.Info("KCP|Dialer: Dialing KCP to ", dest)

	id := internal.NewConnectionId(src, dest)
	conn := globalPool.Get(id)
	if conn == nil {
		rawConn, err := internet.DialToDest(src, dest)
		if err != nil {
			log.Error("KCP|Dialer: Failed to dial to dest: ", err)
			return nil, err
		}
		c := &ClientConnection{
			Conn: rawConn,
			id:   id,
		}
		go c.Run()
		conn = c
	}

	networkSettings, err := options.Stream.GetEffectiveNetworkSettings()
	if err != nil {
		log.Error("KCP|Dialer: Failed to get KCP settings: ", err)
		return nil, err
	}
	kcpSettings := networkSettings.(*Config)

	clientConn := conn.(*ClientConnection)
	header, err := kcpSettings.GetPackerHeader()
	if err != nil {
		return nil, errors.Base(err).Message("KCP|Dialer: Failed to create packet header.")
	}
	security, err := kcpSettings.GetSecurity()
	if err != nil {
		return nil, errors.Base(err).Message("KCP|Dialer: Failed to create security.")
	}
	clientConn.ResetSecurity(header, security)
	conv := uint16(atomic.AddUint32(&globalConv, 1))
	session := NewConnection(conv, clientConn, globalPool, kcpSettings)

	var iConn internet.Connection
	iConn = session

	if options.Stream != nil && options.Stream.HasSecuritySettings() {
		securitySettings, err := options.Stream.GetEffectiveSecuritySettings()
		if err != nil {
			log.Error("KCP|Dialer: Failed to get security settings: ", err)
			return nil, err
		}
		switch securitySettings := securitySettings.(type) {
		case *v2tls.Config:
			config := securitySettings.GetTLSConfig()
			if dest.Address.Family().IsDomain() {
				config.ServerName = dest.Address.Domain()
			}
			tlsConn := tls.Client(conn, config)
			iConn = v2tls.NewConnection(tlsConn)
		}
	}

	return iConn, nil
}
Beispiel #30
0
func (this *SimpleSystemDialer) Dial(src v2net.Address, dest v2net.Destination) (net.Conn, error) {
	return this.adapter.Dial(dest.Network().String(), dest.NetAddr())
}