Examples with FlowRemoved org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved used on opensource projects

Example 1 with FlowRemoved

use of org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved in project netvirt by opendaylight.

the class ElanSmacFlowEventListener method onFlowRemoved.

@Override
public void onFlowRemoved(FlowRemoved flowRemoved) {
    short tableId = flowRemoved.getTableId();
    if (tableId == NwConstants.ELAN_SMAC_TABLE) {
        BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
        long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
        ElanTagName elanTagInfo = elanUtils.getElanInfoByElanTag(elanTag);
        if (elanTagInfo == null) {
            return;
        }
        final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch().getEthernetSource().getAddress().getValue().toUpperCase(Locale.getDefault());
        int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
        if (portTag == 0) {
            LOG.debug("Flow removed event on SMAC flow entry. But having port Tag as 0 ");
            return;
        }
        Optional<IfIndexInterface> existingInterfaceInfo = elanUtils.getInterfaceInfoByInterfaceTag(portTag);
        if (!existingInterfaceInfo.isPresent()) {
            LOG.debug("Interface is not available for port Tag {}", portTag);
            return;
        }
        String interfaceName = existingInterfaceInfo.get().getInterfaceName();
        PhysAddress physAddress = new PhysAddress(srcMacAddress);
        if (interfaceName == null) {
            LOG.error("LPort record not found for tag {}", portTag);
            return;
        }
        jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName), () -> {
            List<ListenableFuture<Void>> elanFutures = new ArrayList<>();
            MacEntry macEntry = elanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
            InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
            String elanInstanceName = elanTagInfo.getName();
            LOG.info("Deleting the Mac-Entry:{} present on ElanInstance:{}", macEntry, elanInstanceName);
            if (macEntry != null && interfaceInfo != null) {
                ListenableFuture<Void> result = txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> elanUtils.deleteMacFlows(elanInstanceCache.get(elanInstanceName).orNull(), interfaceInfo, macEntry, tx));
                elanFutures.add(result);
                addCallBack(result, srcMacAddress);
            }
            InstanceIdentifier<MacEntry> macEntryIdForElanInterface = ElanUtils.getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
            Optional<MacEntry> existingInterfaceMacEntry = ElanUtils.read(broker, LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
            if (existingInterfaceMacEntry.isPresent()) {
                ListenableFuture<Void> future = txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
                    tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
                    MacEntry macEntryInElanInstance = elanUtils.getMacEntryForElanInstance(elanInstanceName, physAddress).orNull();
                    if (macEntryInElanInstance != null && macEntryInElanInstance.getInterface().equals(interfaceName)) {
                        InstanceIdentifier<MacEntry> macEntryIdForElanInstance = ElanUtils.getMacEntryOperationalDataPath(elanInstanceName, physAddress);
                        tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInstance);
                    }
                });
                elanFutures.add(future);
                addCallBack(future, srcMacAddress);
            }
            return elanFutures;
        }, ElanConstants.JOB_MAX_RETRIES);
    }
}

Example 2 with FlowRemoved

use of org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved 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 3 with FlowRemoved

use of org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved in project openflowplugin by opendaylight.

the class FlowNotificationSupplierImplTest method testDelete.

@Test
public void testDelete() {
    final FlowRemoved notification = notifSupplierImpl.deleteNotification(createTestFlowPath());
    assertNotNull(notification);
    assertEquals(FLOW_ID, notification.getFlowRef().getValue().firstKeyOf(Flow.class, FlowKey.class).getId().getValue());
    assertEquals(FLOW_TABLE_ID, notification.getFlowRef().getValue().firstKeyOf(Table.class, TableKey.class).getId());
    assertEquals(FLOW_NODE_ID, notification.getNode().getValue().firstKeyOf(Node.class, NodeKey.class).getId().getValue());
}

Example 4 with FlowRemoved

use of org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved in project openflowplugin by opendaylight.

the class FlowRemovedV10Translator method translateMatch.

@Override
protected MatchBuilder translateMatch(FlowRemoved flowRemoved, DeviceInfo deviceInfo) {
    final VersionDatapathIdConvertorData datapathIdConvertorData = new VersionDatapathIdConvertorData(deviceInfo.getVersion());
    datapathIdConvertorData.setDatapathId(deviceInfo.getDatapathId());
    final Optional<MatchBuilder> matchBuilderOptional = getConvertorExecutor().convert(flowRemoved.getMatchV10(), datapathIdConvertorData);
    return matchBuilderOptional.orElse(new MatchBuilder());
}

Example 5 with FlowRemoved

use of org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved in project openflowplugin by opendaylight.

the class FlowRemovedTranslatorTest method testTranslate.

@Test
public void testTranslate() throws Exception {
    org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowRemoved flowRemovedMessage = buildMessage(false);
    final FlowRemoved flowRemoved = translator.translate(flowRemovedMessage, deviceInfo, null);
    assertEquals(flowRemovedMessage.getCookie(), flowRemoved.getCookie().getValue());
    assertEquals(flowRemovedMessage.getPriority(), flowRemoved.getPriority());
    assertEquals((long) flowRemovedMessage.getTableId().getValue(), (long) flowRemoved.getTableId());
}