Examples of Ethernet

net.floodlightcontroller.packet.Ethernet
@author David Erickson (daviderickson@cs.stanford.edu)
org.jnetpcap.protocol.lan.Ethernet
Ethernet2 definition. Datalink layer ethernet frame definition. @author Mark Bednarczyk @author Sly Technologies, Inc.

Examples of net.floodlightcontroller.packet.Ethernet


    protected Command processPacketInMessage(IOFSwitch sw, OFPacketIn pi,
                                             FloodlightContext cntx) {


        // get the packet-in switch.
        Ethernet eth =
                IFloodlightProviderService.bcStore.
                get(cntx,IFloodlightProviderService.CONTEXT_PI_PAYLOAD);


        if (eth.getPayload() instanceof BSN) {
            BSN bsn = (BSN) eth.getPayload();
            if (bsn == null) return Command.STOP;
            if (bsn.getPayload() == null) return Command.STOP;


            // It could be a packet other than BSN LLDP, therefore
            // continue with the regular processing.

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Examples of net.floodlightcontroller.packet.Ethernet


    private net.floodlightcontroller.core.IListener.Command
            processPacketIn(IOFSwitch sw, OFPacketIn pi,
                            FloodlightContext cntx) {
        
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                                                              IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
        IPacket pkt = eth.getPayload();
 
        if (eth.isBroadcast() || eth.isMulticast()) {
            // handle ARP for VIP
            if (pkt instanceof ARP) {
                // retrieve arp to determine target IP address                                                       
                ARP arpRequest = (ARP) eth.getPayload();


                int targetProtocolAddress = IPv4.toIPv4Address(arpRequest
                                                               .getTargetProtocolAddress());


                if (vipIpToId.containsKey(targetProtocolAddress)) {

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Examples of net.floodlightcontroller.packet.Ethernet

     */
    
    protected void vipProxyArpReply(IOFSwitch sw, OFPacketIn pi, FloodlightContext cntx, String vipId) {
        log.debug("vipProxyArpReply");
            
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                                                              IFloodlightProviderService.CONTEXT_PI_PAYLOAD);


        // retrieve original arp to determine host configured gw IP address                                          
        if (! (eth.getPayload() instanceof ARP))
            return;
        ARP arpRequest = (ARP) eth.getPayload();
        
        // have to do proxy arp reply since at this point we cannot determine the requesting application type
        byte[] vipProxyMacBytes = vips.get(vipId).proxyMac.toBytes();
        
        // generate proxy ARP reply
        IPacket arpReply = new Ethernet()
            .setSourceMACAddress(vipProxyMacBytes)
            .setDestinationMACAddress(eth.getSourceMACAddress())
            .setEtherType(Ethernet.TYPE_ARP)
            .setVlanID(eth.getVlanID())
            .setPriorityCode(eth.getPriorityCode())
            .setPayload(
                new ARP()
                .setHardwareType(ARP.HW_TYPE_ETHERNET)
                .setProtocolType(ARP.PROTO_TYPE_IP)
                .setHardwareAddressLength((byte) 6)
                .setProtocolAddressLength((byte) 4)
                .setOpCode(ARP.OP_REPLY)
                .setSenderHardwareAddress(vipProxyMacBytes)
                .setSenderProtocolAddress(
                        arpRequest.getTargetProtocolAddress())
                .setTargetHardwareAddress(
                        eth.getSourceMACAddress())
                .setTargetProtocolAddress(
                        arpRequest.getSenderProtocolAddress()));
                
        // push ARP reply out
        pushPacket(arpReply, sw, OFPacketOut.BUFFER_ID_NONE, OFPort.OFPP_NONE.getValue(),

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Examples of net.floodlightcontroller.packet.Ethernet

     *         and the wildcards for the firewall decision
     */
    protected RuleWildcardsPair matchWithRule(IOFSwitch sw, OFPacketIn pi,
            FloodlightContext cntx) {
        FirewallRule matched_rule = null;
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
        WildcardsPair wildcards = new WildcardsPair();


        synchronized (rules) {
            Iterator<FirewallRule> iter = this.rules.iterator();

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Examples of net.floodlightcontroller.packet.Ethernet

        return ((IPAddress & inv_subnet_mask) == inv_subnet_mask);
    }


    public Command processPacketInMessage(IOFSwitch sw, OFPacketIn pi,
            IRoutingDecision decision, FloodlightContext cntx) {
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                IFloodlightProviderService.CONTEXT_PI_PAYLOAD);


        // Allowing L2 broadcast + ARP broadcast request (also deny malformed
        // broadcasts -> L2 broadcast + L3 unicast)
        if (eth.isBroadcast() == true) {
            boolean allowBroadcast = true;
            // the case to determine if we have L2 broadcast + L3 unicast
            // don't allow this broadcast packet if such is the case (malformed
            // packet)
            if ((eth.getPayload() instanceof IPv4)
                    && this.IPIsBroadcast(((IPv4) eth.getPayload())
                            .getDestinationAddress()) == false) {
                allowBroadcast = false;
            }
            if (allowBroadcast == true) {
                if (logger.isTraceEnabled())

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Examples of net.floodlightcontroller.packet.Ethernet

        return true;
    }


    public static String getDataAsString(IOFSwitch sw, OFMessage msg, FloodlightContext cntx) {


        Ethernet eth;
        StringBuffer sb =  new StringBuffer("");


        DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss.SSS");
        Date date = new Date();


        sb.append(dateFormat.format(date));
        sb.append("      ");


        switch (msg.getType()) {
            case PACKET_IN:
                OFPacketIn pktIn = (OFPacketIn) msg;
                sb.append("packet_in          [ ");
                sb.append(sw.getStringId());
                sb.append(" -> Controller");
                sb.append(" ]");


                sb.append("\ntotal length: ");
                sb.append(pktIn.getTotalLength());
                sb.append("\nin_port: ");
                sb.append(pktIn.getInPort());
                sb.append("\ndata_length: ");
                sb.append(pktIn.getTotalLength() - OFPacketIn.MINIMUM_LENGTH);
                sb.append("\nbuffer: ");
                sb.append(pktIn.getBufferId());


                // If the conext is not set by floodlight, then ignore.
                if (cntx != null) {
                // packet type  icmp, arp, etc.
                    eth = IFloodlightProviderService.bcStore.get(cntx,
                            IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
                    if (eth != null)
                           sb.append(eth.toString());
                }
                break;


            case PACKET_OUT:
                OFPacketOut pktOut = (OFPacketOut) msg;
                sb.append("packet_out         [ ");
                sb.append("Controller -> ");
                sb.append(HexString.toHexString(sw.getId()));
                sb.append(" ]");


                sb.append("\nin_port: ");
                sb.append(pktOut.getInPort());
                sb.append("\nactions_len: ");
                sb.append(pktOut.getActionsLength());
                if (pktOut.getActions() != null) {
                    sb.append("\nactions: ");
                    sb.append(pktOut.getActions().toString());
                }
                break;


            case FLOW_MOD:
                OFFlowMod fm = (OFFlowMod) msg;
                sb.append("flow_mod           [ ");
                sb.append("Controller -> ");
                sb.append(HexString.toHexString(sw.getId()));
                sb.append(" ]");


                // If the conext is not set by floodlight, then ignore.
                if (cntx != null) {
                    eth = IFloodlightProviderService.bcStore.get(cntx,
                        IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
                    if (eth != null)
                        sb.append(eth.toString());
                }


                sb.append("\nADD: cookie: ");
                sb.append(fm.getCookie());
                sb.append(" idle: ");

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Examples of net.floodlightcontroller.packet.Ethernet

                   explanation="An unsupported PacketIn decision has been " +
                       "passed to the flow programming component",
                   recommendation=LogMessageDoc.REPORT_CONTROLLER_BUG)
    public Command processPacketInMessage(IOFSwitch sw, OFPacketIn pi, IRoutingDecision decision,
                                          FloodlightContext cntx) {
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                                   IFloodlightProviderService.CONTEXT_PI_PAYLOAD);


        // If a decision has been made we obey it
        // otherwise we just forward
        if (decision != null) {
            if (log.isTraceEnabled()) {
                log.trace("Forwaring decision={} was made for PacketIn={}",
                        decision.getRoutingAction().toString(),
                        pi);
            }


            switch(decision.getRoutingAction()) {
                case NONE:
                    // don't do anything
                    return Command.CONTINUE;
                case FORWARD_OR_FLOOD:
                case FORWARD:
                    doForwardFlow(sw, pi, cntx, false);
                    return Command.CONTINUE;
                case MULTICAST:
                    // treat as broadcast
                    doFlood(sw, pi, cntx);
                    return Command.CONTINUE;
                case DROP:
                    doDropFlow(sw, pi, decision, cntx);
                    return Command.CONTINUE;
                default:
                    log.error("Unexpected decision made for this packet-in={}",
                            pi, decision.getRoutingAction());
                    return Command.CONTINUE;
            }
        } else {
            if (log.isTraceEnabled()) {
                log.trace("No decision was made for PacketIn={}, forwarding",
                        pi);
            }


            if (eth.isBroadcast() || eth.isMulticast()) {
                // For now we treat multicast as broadcast
                doFlood(sw, pi, cntx);
            } else {
                doForwardFlow(sw, pi, cntx, false);
            }

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Examples of net.floodlightcontroller.packet.Ethernet

     * @param msg The OFPacketIn message from the switch.
     * @param cntx The FloodlightContext for this message.
     * @return Command.CONTINUE if processing should be continued, Command.STOP otherwise.
     */
    protected Command processPacketIn(IOFSwitch sw, OFPacketIn msg, FloodlightContext cntx) {
        Ethernet eth = IFloodlightProviderService.bcStore.get(cntx,
                                              IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
        Command ret = Command.STOP;
        String srcNetwork = macToGuid.get(eth.getSourceMAC());
        // If the host is on an unknown network we deny it.
        // We make exceptions for ARP and DHCP.
        if (eth.isBroadcast() || eth.isMulticast() || isDefaultGateway(eth) || isDhcpPacket(eth)) {
            ret = Command.CONTINUE;
        } else if (srcNetwork == null) {
            log.trace("Blocking traffic from host {} because it is not attached to any network.",
                      HexString.toHexString(eth.getSourceMACAddress()));
            ret = Command.STOP;
        } else if (oneSameNetwork(eth.getSourceMAC(), eth.getDestinationMAC())) {
            // if they are on the same network continue
            ret = Command.CONTINUE;
        }


        if (log.isTraceEnabled())
            log.trace("Results for flow between {} and {} is {}",
                    new Object[] {eth.getSourceMAC(), eth.getDestinationMAC(), ret});
        /*
         * TODO - figure out how to still detect gateways while using
         * drop mods
        if (ret == Command.STOP) {
            if (!(eth.getPayload() instanceof ARP))

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Examples of net.floodlightcontroller.packet.Ethernet

    // Internal methods
    // ****************


    protected Command processPacketInMessage(IOFSwitch sw, OFPacketIn pi,
                                             FloodlightContext cntx) {
        Ethernet eth =
                IFloodlightProviderService.bcStore.
                get(cntx,IFloodlightProviderService.CONTEXT_PI_PAYLOAD);


        // Extract source entity information
        Entity srcEntity =
                getSourceEntityFromPacket(eth, sw.getId(), pi.getInPort());
        if (srcEntity == null) {
            cntInvalidSource.updateCounterNoFlush();
            return Command.STOP;
        }


        // Learn from ARP packet for special VRRP settings.
        // In VRRP settings, the source MAC address and sender MAC
        // addresses can be different.  In such cases, we need to learn
        // the IP to MAC mapping of the VRRP IP address.  The source
        // entity will not have that information.  Hence, a separate call
        // to learn devices in such cases.
        learnDeviceFromArpResponseData(eth, sw.getId(), pi.getInPort());


        // Learn/lookup device information
        Device srcDevice = learnDeviceByEntity(srcEntity);
        if (srcDevice == null) {
            cntNoSource.updateCounterNoFlush();
            return Command.STOP;
        }


        // Store the source device in the context
        fcStore.put(cntx, CONTEXT_SRC_DEVICE, srcDevice);


        // Find the device matching the destination from the entity
        // classes of the source.
        if (eth.getDestinationMAC().toLong() == 0) {
            cntInvalidDest.updateCounterNoFlush();
            return Command.STOP;
        }
        Entity dstEntity = getDestEntityFromPacket(eth);
        Device dstDevice = null;

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Examples of net.floodlightcontroller.packet.Ethernet


        HashSet<String> matchedFilters = new HashSet<String>();


        // This default function is written to match on packet ins and 
        // packet outs.
        Ethernet eth = null;


        if (m.getType() == OFType.PACKET_IN) {
            eth = IFloodlightProviderService.bcStore.get(cntx, 
                    IFloodlightProviderService.CONTEXT_PI_PAYLOAD);
        } else if (m.getType() == OFType.PACKET_OUT) {
            eth = new Ethernet();
            OFPacketOut p = (OFPacketOut) m;
            
            // No MAC match if packetOut doesn't have the packet.
            if (p.getPacketData() == null) return null;
            
            eth.deserialize(p.getPacketData(), 0, p.getPacketData().length);
        } else if (m.getType() == OFType.FLOW_MOD) {
            // flow-mod can't be matched by mac.
            return null;
        }


        if (eth == null) return null;


        Iterator<String> filterIt = filterMap.keySet().iterator();
        while (filterIt.hasNext()) {   // for every filter
            boolean filterMatch = false;
            String filterSessionId = filterIt.next();
            Map<String,String> filter = filterMap.get(filterSessionId);


            // If the filter has empty fields, then it is not considered as a match.
            if (filter == null || filter.isEmpty()) continue;                  
            Iterator<String> fieldIt = filter.keySet().iterator();
            while (fieldIt.hasNext()) {   
                String filterFieldType = fieldIt.next();
                String filterFieldValue = filter.get(filterFieldType);
                if (filterFieldType.equals("mac")) {


                    String srcMac = HexString.toHexString(eth.getSourceMACAddress());
                    String dstMac = HexString.toHexString(eth.getDestinationMACAddress());
                    log.debug("srcMac: {}, dstMac: {}", srcMac, dstMac);


                    if (filterFieldValue.equals(srcMac) || 
                            filterFieldValue.equals(dstMac)){
                        filterMatch = true;

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