def send(self, packet):
"""
Send a packet via a PACKET_OUT OpenFlow message. We use the PacketOut members
and use net.es.netshell.odlmdsal.impl.EthernetFrame to help us put a VLAN
header on the front
:param packet: common.openflow.PacketOut
:return: True if successful, False if not
"""
# print "ODLClient.send with packet from " + str(packet.dl_src) + " to " + str(packet.dl_dst) + " on " + packet.scope.switch.props['dpid']
if self.isPacketOutValid(packet):
# Get the switch (Node in the ODL world) and port (NodeConnector in the ODL world)
sw = self.findODLSwitch(packet.scope.switch)
dpid = packet.scope.switch.props['dpid'][-8:]
if sw == None:
print packet, "cannot be sent because the switch is not in inventory"
return False
portName = packet.port.name
nodeconn = self.odlController.getNodeConnector(sw, portName)
if nodeconn == None:
ODLClient.logger.warning('can not send %r because the port %s on %r is invalid' % (packet, portName, sw.getId()))
return False
# Create the outgoing packet in ODL land. The outgoing node connector must be set.
frame = EthernetFrame()
frame.setDstMac(self.javaByteArray(packet.dl_dst.data))
frame.setSrcMac(self.javaByteArray(packet.dl_src.data))
frame.setEtherType(packet.etherType)
frame.setVid(packet.vlan)
frame.setPayload(packet.payload)
self.odlController.transmitDataPacket(self.javaByteArray(dpid), portName, frame.toPacket())
return True
ODLClient.logger.warning("Packet %r is not valid" % packet)
return False
