Example #1
0
func (of *of10Driver) handlePacketIn(in of10.PacketIn, c *ofConn) error {
	inPort := in.InPort()
	// Ignore packet-ins on switch specific ports.
	if inPort > uint16(of10.PP_MAX) {
		glog.V(2).Infof("ignoring packet-in on %v", inPort)
		return nil
	}

	port, ok := of.ofPorts[inPort]
	if !ok {
		return fmt.Errorf("of10Driver: port not found %v", inPort)
	}

	glog.V(2).Infof("packet received: %v", in)

	nomIn := nom.PacketIn{
		Node:     c.node.UID(),
		InPort:   port.UID(),
		BufferID: nom.PacketBufferID(in.BufferId()),
	}
	nomIn.Packet = nom.Packet(in.Data())
	c.ctx.Emit(nomIn)

	return nil
}
Example #2
0
func sendLLDPPacket(n nom.Node, p nom.Port, ctx bh.RcvContext) {
	pkt := nom.PacketOut{
		Node:     n.UID(),
		Packet:   nom.Packet(encodeLLDP(n, p)),
		BufferID: 0xFFFFFFFF,
		Actions: []nom.Action{
			nom.ActionForward{
				Ports: []nom.UID{p.UID()},
			},
		},
	}
	ctx.Emit(pkt)
}
Example #3
0
func (of *of12Driver) handlePacketIn(in of12.PacketIn, c *ofConn) error {
	m := in.Match()
	if m.Type() == uint16(of12.PMT_STANDARD) {
		glog.Warningf("standard matches are not supported")
		return nil
	}

	var inPort uint32
	hasInPort := false

	xm, _ := of12.ToOXMatch(in.Match())
	for _, f := range xm.Fields() {
		if of12.IsOxmInPort(f) {
			xp, _ := of12.ToOxmInPort(f)
			inPort = xp.InPort()
			hasInPort = true
		}
	}

	if !hasInPort {
		glog.V(2).Infof("packet in does not have an input port")
		return nil
	}

	// Ignore packet-ins on switch specific ports.
	if inPort > uint32(of12.PP_MAX) {
		glog.V(2).Infof("ignoring packet-in on %v", inPort)
		return nil
	}

	port, ok := of.ofPorts[inPort]
	if !ok {
		return fmt.Errorf("of12Driver: port not found %v", inPort)
	}

	if glog.V(2) {
		glog.Infof("packet received: %v", in)
	}

	nomIn := nom.PacketIn{
		Node:     c.node.UID(),
		InPort:   port.UID(),
		BufferID: nom.PacketBufferID(in.BufferId()),
	}
	nomIn.Packet = nom.Packet(in.Data())
	c.ctx.Emit(nomIn)

	return nil
}