Examples with ARP org.onlab.packet.ARP used on opensource projects

Example 21 with ARP

use of org.onlab.packet.ARP in project onos by opennetworkinglab.

the class K8sSwitchingArpHandler method processArpReply.

private void processArpReply(PacketContext context, Ethernet ethPacket) {
    ARP arpPacket = (ARP) ethPacket.getPayload();
    IpAddress srcIp = IpAddress.valueOf(INET, arpPacket.getSenderProtocolAddress());
    MacAddress srcMac = MacAddress.valueOf(arpPacket.getSenderHardwareAddress());
    IpAddress dstIp = IpAddress.valueOf(INET, arpPacket.getTargetProtocolAddress());
    if (dstIp.equals(IpAddress.valueOf(NODE_FAKE_IP_STR))) {
        // mutable MAP scenario is not considered for now
        if (!extHostMacStore.containsKey(srcIp)) {
            extHostMacStore.put(srcIp, srcMac);
        }
        K8sNode k8sNode = k8sNodeService.nodes().stream().filter(n -> n.nodeIp().equals(srcIp)).findAny().orElse(null);
        if (k8sNode == null) {
            return;
        } else {
            if (k8sNode.nodeInfo().nodeMac() != null) {
                return;
            }
        }
        // we update node MAC address which will be referred in node port scenario
        K8sNodeInfo nodeInfo = new K8sNodeInfo(k8sNode.nodeIp(), srcMac);
        K8sNode updatedNode = k8sNode.updateNodeInfo(nodeInfo);
        k8sNodeService.updateNode(updatedNode);
    }
}

Example 22 with ARP

use of org.onlab.packet.ARP in project aaa by opencord.

the class PortBasedRadiusCommunicator method handleArpPacketFromServer.

/**
 * Handles ARP packets from RADIUS server.
 *
 * @param context Context for the packet
 */
private void handleArpPacketFromServer(PacketContext context) {
    // Extract the original Ethernet frame from the packet information
    InboundPacket pkt = context.inPacket();
    Ethernet ethPkt = pkt.parsed();
    if (ethPkt == null) {
        return;
    }
    ARP arpPacket = (ARP) ethPkt.getPayload();
    Ip4Address targetAddress = Ip4Address.valueOf(arpPacket.getTargetProtocolAddress());
    String serialNo = ipToSnMap.get(targetAddress);
    if (serialNo == null) {
        log.info("No mapping found for ARP reply, target address {}", targetAddress);
        return;
    }
    if (subsService == null) {
        log.warn(SADIS_NOT_RUNNING);
        return;
    }
    MacAddress senderMac = subsService.get(serialNo).hardwareIdentifier();
    if (senderMac == null) {
        log.warn("ARP resolution, MAC address not found for SN {}", serialNo);
        return;
    }
    ARP arpReply = (ARP) arpPacket.clone();
    arpReply.setOpCode(ARP.OP_REPLY);
    arpReply.setTargetProtocolAddress(arpPacket.getSenderProtocolAddress());
    arpReply.setTargetHardwareAddress(arpPacket.getSenderHardwareAddress());
    arpReply.setSenderProtocolAddress(arpPacket.getTargetProtocolAddress());
    arpReply.setSenderHardwareAddress(senderMac.toBytes());
    log.debug("AAA Manager: Query for ARP of IP : {}", arpPacket.getTargetProtocolAddress());
    // Ethernet Frame.
    Ethernet ethReply = new Ethernet();
    ethReply.setSourceMACAddress(senderMac);
    ethReply.setDestinationMACAddress(ethPkt.getSourceMAC());
    ethReply.setEtherType(Ethernet.TYPE_ARP);
    ethReply.setVlanID(radiusVlanID);
    ethReply.setPriorityCode(ethPkt.getPriorityCode());
    ethReply.setPayload(arpReply);
    sendFromRadiusServerPort(ethReply);
}