Examples with Packet org.opendaylight.openflowplugin.libraries.liblldp.Packet used on opensource projects

Example 1 with Packet

use of org.opendaylight.openflowplugin.libraries.liblldp.Packet in project netvirt by opendaylight.

the class SubnetRoutePacketInHandler method onPacketReceived.

@Override
public void onPacketReceived(PacketReceived notification) {
    short tableId = notification.getTableId().getValue();
    LOG.trace("{} onPacketReceived: Packet punted from table {}", LOGGING_PREFIX, tableId);
    byte[] data = notification.getPayload();
    if (notification.getMatch() == null || notification.getMatch().getMetadata() == null) {
        LOG.error("{} onPacketReceived: Received from table {} where the match or metadata are null", LOGGING_PREFIX, tableId);
        return;
    }
    BigInteger metadata = notification.getMatch().getMetadata().getMetadata();
    Ethernet res = new Ethernet();
    if (tableId == NwConstants.L3_SUBNET_ROUTE_TABLE) {
        LOG.trace("{} onPacketReceived: Some packet received as {}", LOGGING_PREFIX, notification);
        try {
            res.deserialize(data, 0, data.length * NetUtils.NUM_BITS_IN_A_BYTE);
        } catch (PacketException e) {
            LOG.error("{} onPacketReceived: Failed to decode Packet ", LOGGING_PREFIX, e);
            VpnManagerCounters.subnet_route_packet_failed.inc();
            return;
        }
        try {
            Packet pkt = res.getPayload();
            if (pkt instanceof IPv4) {
                IPv4 ipv4 = (IPv4) pkt;
                byte[] srcIp = Ints.toByteArray(ipv4.getSourceAddress());
                byte[] dstIp = Ints.toByteArray(ipv4.getDestinationAddress());
                String dstIpStr = NWUtil.toStringIpAddress(dstIp);
                String srcIpStr = NWUtil.toStringIpAddress(srcIp);
                // It is an ARP request on a configured VPN. So we must
                // attempt to respond.
                long vpnId = MetaDataUtil.getVpnIdFromMetadata(metadata);
                LOG.info("{} onPacketReceived: Processing IPv4 Packet received with Source IP {} and Target IP {}" + " and vpnId {}", LOGGING_PREFIX, srcIpStr, dstIpStr, vpnId);
                Optional<VpnIds> vpnIdsOptional = VpnUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, VpnUtil.getVpnIdToVpnInstanceIdentifier(vpnId));
                if (!vpnIdsOptional.isPresent()) {
                    // Donot trigger subnetroute logic for packets from
                    // unknown VPNs
                    VpnManagerCounters.subnet_route_packet_ignored.inc();
                    LOG.info("{} onPacketReceived: Ignoring IPv4 packet with destination Ip {} and source Ip {}" + " as it came on unknown VPN with ID {}", LOGGING_PREFIX, dstIpStr, srcIpStr, vpnId);
                    return;
                }
                String vpnIdVpnInstanceName = vpnIdsOptional.get().getVpnInstanceName();
                if (VpnUtil.getNeutronPortFromVpnPortFixedIp(dataBroker, vpnIdVpnInstanceName, dstIpStr) != null) {
                    VpnManagerCounters.subnet_route_packet_ignored.inc();
                    LOG.info("{} onPacketReceived: IPv4 Packet received with Target IP {} source IP {} vpnId {} " + "is a valid Neutron port,ignoring subnet route processing", LOGGING_PREFIX, dstIpStr, srcIp, vpnId);
                    return;
                }
                if (VpnUtil.getLearntVpnVipToPort(dataBroker, vpnIdVpnInstanceName, dstIpStr) != null) {
                    VpnManagerCounters.subnet_route_packet_ignored.inc();
                    LOG.info("{} onPacketReceived: IPv4 Packet received with Target IP {} source Ip {} vpnId {}" + " is an already discovered IPAddress, ignoring subnet route processing", LOGGING_PREFIX, dstIpStr, srcIp, vpnId);
                    return;
                }
                long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
                if (elanTag == 0L) {
                    VpnManagerCounters.subnet_route_packet_failed.inc();
                    LOG.error("{} onPacketReceived: elanTag value from metadata found to be 0, for IPv4 " + " Packet received with Target IP {} src Ip {} vpnId {}", LOGGING_PREFIX, dstIpStr, srcIp, vpnId);
                    return;
                }
                if (!vpnIdsOptional.get().isExternalVpn()) {
                    handleInternalVpnSubnetRoutePacket(metadata, dstIp, srcIpStr, dstIpStr, ipv4.getDestinationAddress(), vpnIdVpnInstanceName, elanTag);
                    return;
                }
                byte[] srcMac = res.getSourceMACAddress();
                handleBgpVpnSubnetRoute(ipv4, srcMac, dstIp, dstIpStr, srcIpStr, elanTag);
            }
        } catch (UnknownHostException | InterruptedException | ExecutionException ex) {
            // Failed to handle packet
            VpnManagerCounters.subnet_route_packet_failed.inc();
            LOG.error("{} onPacketReceived: Failed to handle subnetroute packet.", LOGGING_PREFIX, ex);
        }
        return;
    }
// All Arp responses learning for invisble IPs is handled by
// ArpNotificationHandler
}

Example 2 with Packet

use of org.opendaylight.openflowplugin.libraries.liblldp.Packet in project genius by opendaylight.

the class AlivenessMonitor method onPacketReceived.

@Override
public void onPacketReceived(PacketReceived packetReceived) {
    Class<? extends PacketInReason> pktInReason = packetReceived.getPacketInReason();
    if (LOG.isTraceEnabled()) {
        LOG.trace("Packet Received {}", packetReceived);
    }
    if (pktInReason == SendToController.class) {
        Packet packetInFormatted;
        byte[] data = packetReceived.getPayload();
        Ethernet res = new Ethernet();
        try {
            packetInFormatted = res.deserialize(data, 0, data.length * NetUtils.NUM_BITS_IN_A_BYTE);
        } catch (PacketException e) {
            LOG.warn("Failed to decode packet: ", e);
            return;
        }
        if (packetInFormatted == null) {
            LOG.warn("Failed to deserialize Received Packet from table {}", packetReceived.getTableId().getValue());
            return;
        }
        Packet objPayload = packetInFormatted.getPayload();
        if (objPayload == null) {
            LOG.trace("Unsupported packet type. Ignoring the packet...");
            return;
        }
        if (LOG.isTraceEnabled()) {
            LOG.trace("onPacketReceived packet: {}, packet class: {}", packetReceived, objPayload.getClass());
        }
        AlivenessProtocolHandler<Packet> livenessProtocolHandler = alivenessProtocolHandlerRegistry.getOpt(Packet.class);
        if (livenessProtocolHandler == null) {
            return;
        }
        String monitorKey = livenessProtocolHandler.handlePacketIn(packetInFormatted.getPayload(), packetReceived);
        if (monitorKey != null) {
            processReceivedMonitorKey(monitorKey);
        } else {
            LOG.debug("No monitorkey associated with received packet");
        }
    }
}

Example 3 with Packet

use of org.opendaylight.openflowplugin.libraries.liblldp.Packet in project genius by opendaylight.

the class ArpUtilImpl method onPacketReceived.

@Override
public void onPacketReceived(PacketReceived packetReceived) {
    Class<? extends PacketInReason> pktInReason = packetReceived.getPacketInReason();
    LOG.trace("Packet Received {}", packetReceived);
    if (pktInReason == SendToController.class) {
        try {
            int tableId = packetReceived.getTableId().getValue();
            byte[] data = packetReceived.getPayload();
            Ethernet ethernet = new Ethernet();
            ethernet.deserialize(data, 0, data.length * NetUtils.NUM_BITS_IN_A_BYTE);
            if (ethernet.getEtherType() != ArpConstants.ETH_TYPE_ARP) {
                return;
            }
            Packet pkt = ethernet.getPayload();
            ARP arp = (ARP) pkt;
            InetAddress srcInetAddr = InetAddress.getByAddress(arp.getSenderProtocolAddress());
            InetAddress dstInetAddr = InetAddress.getByAddress(arp.getTargetProtocolAddress());
            byte[] srcMac = ethernet.getSourceMACAddress();
            byte[] dstMac = ethernet.getDestinationMACAddress();
            Metadata metadata = packetReceived.getMatch().getMetadata();
            String interfaceName = getInterfaceName(metadata);
            checkAndFireMacChangedNotification(interfaceName, srcInetAddr, srcMac);
            macsDB.put(interfaceName + "-" + srcInetAddr.getHostAddress(), NWUtil.toStringMacAddress(srcMac));
            if (arp.getOpCode() == ArpConstants.ARP_REQUEST_OP) {
                fireArpReqRecvdNotification(interfaceName, srcInetAddr, srcMac, dstInetAddr, tableId, metadata.getMetadata());
            } else {
                fireArpRespRecvdNotification(interfaceName, srcInetAddr, srcMac, tableId, metadata.getMetadata(), dstInetAddr, dstMac);
            }
            if (macAddrs.get(srcInetAddr.getHostAddress()) != null) {
                threadPool.execute(new MacResponderTask(arp));
            }
        } catch (PacketException | UnknownHostException | InterruptedException | ExecutionException e) {
            LOG.trace("Failed to decode packet", e);
        }
    }
}