Exemple #1
0
func Dial(dest v2net.Destination) (net.Conn, error) {
	if dest.Address().IsDomain() {
		dialer := &net.Dialer{
			Timeout:   time.Second * 60,
			DualStack: true,
		}
		network := "tcp"
		if dest.IsUDP() {
			network = "udp"
		}
		return dialer.Dial(network, dest.NetAddr())
	}

	ip := dest.Address().IP()
	if dest.IsTCP() {
		return net.DialTCP("tcp", nil, &net.TCPAddr{
			IP:   ip,
			Port: int(dest.Port()),
		})
	} else {
		return net.DialUDP("udp", nil, &net.UDPAddr{
			IP:   ip,
			Port: int(dest.Port()),
		})
	}
}
Exemple #2
0
func (this *Listener) OnReceive(payload *alloc.Buffer, src v2net.Destination) {
	defer payload.Release()

	if valid := this.block.Open(payload); !valid {
		log.Info("KCP|Listener: discarding invalid payload from ", src)
		return
	}
	if !this.running {
		return
	}
	this.Lock()
	defer this.Unlock()
	if !this.running {
		return
	}
	if payload.Len() < 4 {
		return
	}
	conv := serial.BytesToUint16(payload.Value)
	cmd := Command(payload.Value[2])
	sourceId := src.NetAddr() + "|" + serial.Uint16ToString(conv)
	conn, found := this.sessions[sourceId]
	if !found {
		if cmd == CommandTerminate {
			return
		}
		log.Debug("KCP|Listener: Creating session with id(", sourceId, ") from ", src)
		writer := &Writer{
			id:       sourceId,
			hub:      this.hub,
			dest:     src,
			listener: this,
		}
		srcAddr := &net.UDPAddr{
			IP:   src.Address().IP(),
			Port: int(src.Port()),
		}
		conn = NewConnection(conv, writer, this.localAddr, srcAddr, this.block)
		select {
		case this.awaitingConns <- conn:
		case <-time.After(time.Second * 5):
			conn.Close()
			return
		}
		this.sessions[sourceId] = conn
	}
	conn.Input(payload.Value)
}
Exemple #3
0
func DialToDest(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())
}