Examples with Layer4Match org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match used on opensource projects

Example 1 with Layer4Match

use of org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match in project netvirt by opendaylight.

the class NaptFlowRemovedEventHandler method onFlowRemoved.

@Override
public void onFlowRemoved(FlowRemoved flowRemoved) {
    /*
        If the removed flow is from the OUTBOUND NAPT table :
        1) Get the ActionInfo of the flow.
        2) From the ActionInfo of the flow get the internal IP address, port and the protocol.
        3) Get the Metadata matching info of the flow.
        4) From the Metadata matching info of the flow get router ID.
        5) Querry the container intext-ip-port-map using the router ID
           and the internal IP address, port to get the external IP address, port
        6) Instantiate an NaptEntry event and populate the external IP address, port and the router ID.
        7) Place the NaptEntry event to the queue.
*/
    short tableId = flowRemoved.getTableId();
    RemovedFlowReason removedReasonFlag = flowRemoved.getReason();
    if (tableId == NwConstants.OUTBOUND_NAPT_TABLE && RemovedFlowReason.OFPRRIDLETIMEOUT.equals(removedReasonFlag)) {
        LOG.info("onFlowRemoved : triggered for table-{} entry", tableId);
        // Get the internal internal IP address and the port number from the IPv4 match.
        Ipv4Prefix internalIpv4Address = null;
        Layer3Match layer3Match = flowRemoved.getMatch().getLayer3Match();
        if (layer3Match instanceof Ipv4Match) {
            Ipv4Match internalIpv4Match = (Ipv4Match) layer3Match;
            internalIpv4Address = internalIpv4Match.getIpv4Source();
        }
        if (internalIpv4Address == null) {
            LOG.error("onFlowRemoved : Matching internal IP is null while retrieving the " + "value from the Outbound NAPT flow");
            return;
        }
        // Get the internal IP as a string
        String internalIpv4AddressAsString = internalIpv4Address.getValue();
        String[] internalIpv4AddressParts = internalIpv4AddressAsString.split("/");
        String internalIpv4HostAddress = null;
        if (internalIpv4AddressParts.length >= 1) {
            internalIpv4HostAddress = internalIpv4AddressParts[0];
        }
        // Get the protocol from the layer4 match
        NAPTEntryEvent.Protocol protocol = null;
        Integer internalPortNumber = null;
        Layer4Match layer4Match = flowRemoved.getMatch().getLayer4Match();
        if (layer4Match instanceof TcpMatch) {
            TcpMatchFields tcpMatchFields = (TcpMatchFields) layer4Match;
            internalPortNumber = tcpMatchFields.getTcpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.TCP;
        } else if (layer4Match instanceof UdpMatch) {
            UdpMatchFields udpMatchFields = (UdpMatchFields) layer4Match;
            internalPortNumber = udpMatchFields.getUdpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.UDP;
        }
        if (protocol == null) {
            LOG.error("onFlowRemoved : Matching protocol is null while retrieving the value " + "from the Outbound NAPT flow");
            return;
        }
        // Get the router ID from the metadata.
        Long routerId;
        BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
        if (MetaDataUtil.getNatRouterIdFromMetadata(metadata) != 0) {
            routerId = MetaDataUtil.getNatRouterIdFromMetadata(metadata);
        } else {
            LOG.error("onFlowRemoved : Null exception while retrieving routerId");
            return;
        }
        final String internalIpPortKey = routerId + NatConstants.COLON_SEPARATOR + internalIpv4HostAddress + NatConstants.COLON_SEPARATOR + internalPortNumber;
        // Get the external IP address and the port from the model
        IpPortExternal ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
        if (ipPortExternal == null) {
            LOG.error("onFlowRemoved : IpPortExternal not found, BGP vpn might be " + "associated with router");
            // router must be associated with BGP vpn ID
            long bgpVpnId = routerId;
            LOG.debug("onFlowRemoved : BGP VPN ID {}", bgpVpnId);
            String vpnName = NatUtil.getRouterName(dataBroker, bgpVpnId);
            String routerName = NatUtil.getRouterIdfromVpnInstance(dataBroker, vpnName);
            if (routerName == null) {
                LOG.error("onFlowRemoved : Unable to find router for VpnName {}", vpnName);
                return;
            }
            routerId = NatUtil.getVpnId(dataBroker, routerName);
            LOG.debug("onFlowRemoved : Router ID {}", routerId);
            ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
            if (ipPortExternal == null) {
                LOG.error("onFlowRemoved : IpPortExternal is null while queried from the " + "model for routerId {}", routerId);
                return;
            }
        }
        String externalIpAddress = ipPortExternal.getIpAddress();
        int externalPortNumber = ipPortExternal.getPortNum();
        // Create an NAPT event and place it in the queue.
        NAPTEntryEvent naptEntryEvent = new NAPTEntryEvent(externalIpAddress, externalPortNumber, routerId, NAPTEntryEvent.Operation.DELETE, protocol, null, false, null);
        naptEventdispatcher.addFlowRemovedNaptEvent(naptEntryEvent);
        // Get the DPN ID from the Node
        InstanceIdentifier<Node> nodeRef = flowRemoved.getNode().getValue().firstIdentifierOf(Node.class);
        String dpn = nodeRef.firstKeyOf(Node.class).getId().getValue();
        BigInteger dpnId = getDpnId(dpn);
        String switchFlowRef = NatUtil.getNaptFlowRef(dpnId, tableId, String.valueOf(routerId), internalIpv4HostAddress, internalPortNumber);
        // Inform the MDSAL manager to inform about the flow removal.
        LOG.debug("onFlowRemoved : DPN ID {}, Metadata {}, SwitchFlowRef {}, " + "internalIpv4HostAddress{}", dpnId, routerId, switchFlowRef, internalIpv4AddressAsString);
        FlowEntity snatFlowEntity = NatUtil.buildFlowEntity(dpnId, tableId, switchFlowRef);
        long startTime = System.currentTimeMillis();
        mdsalManager.removeFlow(snatFlowEntity);
        LOG.debug("onFlowRemoved : Elapsed time fo deleting table-{} flow for snat ({}) session:{}ms", tableId, internalIpPortKey, (System.currentTimeMillis() - startTime));
        // Remove the SourceIP:Port key from the Napt packet handler map.
        naptPacketInHandler.removeIncomingPacketMap(internalIpPortKey);
        // Remove the mapping of internal fixed ip/port to external ip/port from the datastore.
        SessionAddress internalSessionAddress = new SessionAddress(internalIpv4HostAddress, internalPortNumber);
        naptManager.releaseIpExtPortMapping(routerId, internalSessionAddress, protocol);
        LOG.info("onFlowRemoved : exit");
    } else {
        LOG.debug("onFlowRemoved : Received flow removed notification due to flowdelete from switch for flowref");
    }
}

Example 2 with Layer4Match

use of org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match in project openflowplugin by opendaylight.

the class SctpDestinationPortEntryDeserializer method deserializeEntry.

@Override
public void deserializeEntry(ByteBuf message, MatchBuilder builder) {
    processHeader(message);
    final int port = message.readUnsignedShort();
    if (Objects.isNull(builder.getLayer4Match())) {
        builder.setLayer4Match(new SctpMatchBuilder().setSctpDestinationPort(new PortNumber(port)).build());
    } else if (SctpMatch.class.isInstance(builder.getLayer4Match()) && Objects.isNull(SctpMatch.class.cast(builder.getLayer4Match()).getSctpDestinationPort())) {
        builder.setLayer4Match(new SctpMatchBuilder(SctpMatch.class.cast(builder.getLayer4Match())).setSctpDestinationPort(new PortNumber(port)).build());
    } else {
        throwErrorOnMalformed(builder, "layer4Match", "sctpDestinationPort");
    }
}

Example 3 with Layer4Match

use of org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match in project openflowplugin by opendaylight.

the class TcpDestinationPortEntryDeserializer method deserializeEntry.

@Override
public void deserializeEntry(ByteBuf message, MatchBuilder builder) {
    processHeader(message);
    final int port = message.readUnsignedShort();
    if (Objects.isNull(builder.getLayer4Match())) {
        builder.setLayer4Match(new TcpMatchBuilder().setTcpDestinationPort(new PortNumber(port)).build());
    } else if (TcpMatch.class.isInstance(builder.getLayer4Match()) && Objects.isNull(TcpMatch.class.cast(builder.getLayer4Match()).getTcpDestinationPort())) {
        builder.setLayer4Match(new TcpMatchBuilder(TcpMatch.class.cast(builder.getLayer4Match())).setTcpDestinationPort(new PortNumber(port)).build());
    } else {
        throwErrorOnMalformed(builder, "layer4Match", "tcpDestinationPort");
    }
}

Example 4 with Layer4Match

use of org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match in project openflowplugin by opendaylight.

the class MatchConvertor method convert.

@Override
public List<MatchEntry> convert(final Match source, final VersionConvertorData data) {
    List<MatchEntry> result = new ArrayList<>();
    if (source == null) {
        return result;
    }
    final ExtensionConverterProvider extensionConvertorProvider = OFSessionUtil.getExtensionConvertorProvider();
    inPortMatch(result, source.getInPort());
    inPhyPortMatch(result, source.getInPhyPort());
    metadataMatch(result, source.getMetadata());
    ethernetMatch(result, source.getEthernetMatch());
    vlanMatch(result, source.getVlanMatch());
    ipMatch(result, source.getIpMatch());
    layer4Match(result, source.getLayer4Match(), getConvertorExecutor(), extensionConvertorProvider);
    icmpv4Match(result, source.getIcmpv4Match());
    icmpv6Match(result, source.getIcmpv6Match());
    layer3Match(result, source.getLayer3Match(), getConvertorExecutor(), extensionConvertorProvider);
    protocolMatchFields(result, source.getProtocolMatchFields());
    tunnelMatch(result, source.getTunnel());
    tcpFlagsMatch(result, source.getTcpFlagsMatch());
    /*
         * TODO: EXTENSION PROPOSAL (source, MD-SAL to OFJava)
         * - we might need version for conversion and for key
         */
    Optional<GeneralExtensionListGrouping> extensionListOpt = ExtensionResolvers.getMatchExtensionResolver().getExtension(source);
    if (extensionListOpt.isPresent()) {
        List<ExtensionList> extensionListList = extensionListOpt.get().getExtensionList();
        for (ExtensionList extensionItem : extensionListList) {
            // TODO: get real version
            ConverterExtensionKey<? extends ExtensionKey> key = new ConverterExtensionKey<>(extensionItem.getExtensionKey(), OFConstants.OFP_VERSION_1_3);
            ConvertorToOFJava<MatchEntry> convertor = extensionConvertorProvider.getConverter(key);
            if (convertor == null) {
                throw new IllegalStateException("No converter found for key: " + key.toString());
            }
            MatchEntry ofMatch = convertor.convert(extensionItem.getExtension());
            result.add(ofMatch);
        }
    }
    return result;
}

Example 5 with Layer4Match

use of org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer4Match in project openflowplugin by opendaylight.

the class TcpSourcePortEntryDeserializer method deserializeEntry.

@Override
public void deserializeEntry(ByteBuf message, MatchBuilder builder) {
    processHeader(message);
    final int port = message.readUnsignedShort();
    if (Objects.isNull(builder.getLayer4Match())) {
        builder.setLayer4Match(new TcpMatchBuilder().setTcpSourcePort(new PortNumber(port)).build());
    } else if (TcpMatch.class.isInstance(builder.getLayer4Match()) && Objects.isNull(TcpMatch.class.cast(builder.getLayer4Match()).getTcpSourcePort())) {
        builder.setLayer4Match(new TcpMatchBuilder(TcpMatch.class.cast(builder.getLayer4Match())).setTcpSourcePort(new PortNumber(port)).build());
    } else {
        throwErrorOnMalformed(builder, "layer4Match", "tcpSource");
    }
}