vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanSmacFlowEventListener.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.netvirt.elan.internal;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import java.math.BigInteger;
  15 import java.util.ArrayList;
  16 import java.util.List;
  17 import java.util.Locale;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  21 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  23 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  24 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  25 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  26 import org.opendaylight.genius.mdsalutil.NwConstants;
  27 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  28 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  29 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeExperimenterErrorNotification;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SwitchFlowRemoved;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  41 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 @Singleton
  46 public class ElanSmacFlowEventListener implements SalFlowListener {
  47
  48     private static final Logger LOG = LoggerFactory.getLogger(ElanSmacFlowEventListener.class);
  49
  50     private final DataBroker broker;
  51     private final IInterfaceManager interfaceManager;
  52     private final ElanUtils elanUtils;
  53     private final JobCoordinator jobCoordinator;
  54
  55     @Inject
  56     public ElanSmacFlowEventListener(DataBroker broker, IInterfaceManager interfaceManager, ElanUtils elanUtils,
  57             JobCoordinator jobCoordinator) {
  58         this.broker = broker;
  59         this.interfaceManager = interfaceManager;
  60         this.elanUtils = elanUtils;
  61         this.jobCoordinator = jobCoordinator;
  62     }
  63
  64     @Override
  65     public void onFlowAdded(FlowAdded arg0) {
  66         // TODO Auto-generated method stub
  67
  68     }
  69
  70     @Override
  71     public void onFlowRemoved(FlowRemoved flowRemoved) {
  72         short tableId = flowRemoved.getTableId();
  73         if (tableId == NwConstants.ELAN_SMAC_TABLE) {
  74             BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
  75             long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
  76             ElanTagName elanTagInfo = elanUtils.getElanInfoByElanTag(elanTag);
  77             if (elanTagInfo == null) {
  78                 return;
  79             }
  80             final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch()
  81                     .getEthernetSource().getAddress().getValue().toUpperCase(Locale.getDefault());
  82             int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
  83             if (portTag == 0) {
  84                 LOG.debug(String.format("Flow removed event on SMAC flow entry. But having port Tag as 0 "));
  85                 return;
  86             }
  87             Optional<IfIndexInterface> existingInterfaceInfo = elanUtils.getInterfaceInfoByInterfaceTag(portTag);
  88             if (!existingInterfaceInfo.isPresent()) {
  89                 LOG.debug("Interface is not available for port Tag {}", portTag);
  90                 return;
  91             }
  92             String interfaceName = existingInterfaceInfo.get().getInterfaceName();
  93             PhysAddress physAddress = new PhysAddress(srcMacAddress);
  94             if (interfaceName == null) {
  95                 LOG.error(String.format("LPort record not found for tag %d", portTag));
  96                 return;
  97             }
  98             jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName), () -> {
  99                 List<ListenableFuture<Void>> elanFutures = new ArrayList<>();
 100                 MacEntry macEntry = elanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
 101                 InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
 102                 String elanInstanceName = elanTagInfo.getName();
 103                 LOG.info("Deleting the Mac-Entry:{} present on ElanInstance:{}", macEntry, elanInstanceName);
 104                 if (macEntry != null && interfaceInfo != null) {
 105                     WriteTransaction deleteFlowTx = broker.newWriteOnlyTransaction();
 106                     elanUtils.deleteMacFlows(ElanUtils.getElanInstanceByName(broker, elanInstanceName), interfaceInfo,
 107                             macEntry, deleteFlowTx);
 108                     ListenableFuture<Void> result = deleteFlowTx.submit();
 109                     elanFutures.add(result);
 110                     addCallBack(result, srcMacAddress);
 111                 }
 112                 InstanceIdentifier<MacEntry> macEntryIdForElanInterface = ElanUtils
 113                         .getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
 114                 WriteTransaction tx = broker.newWriteOnlyTransaction();
 115                 Optional<MacEntry> existingInterfaceMacEntry = ElanUtils.read(broker,
 116                         LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 117                 if (existingInterfaceMacEntry.isPresent()) {
 118                     tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 119                     MacEntry macEntryInElanInstance = elanUtils.getMacEntryForElanInstance(elanInstanceName,
 120                             physAddress).orNull();
 121                     if (macEntryInElanInstance != null
 122                             && macEntryInElanInstance.getInterface().equals(interfaceName)) {
 123                         InstanceIdentifier<MacEntry> macEntryIdForElanInstance = ElanUtils
 124                                 .getMacEntryOperationalDataPath(elanInstanceName, physAddress);
 125                         tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInstance);
 126                     }
 127                     ListenableFuture<Void> writeResult = tx.submit();
 128                     elanFutures.add(writeResult);
 129                     addCallBack(writeResult, srcMacAddress);
 130                 }
 131                 return elanFutures;
 132             }, ElanConstants.JOB_MAX_RETRIES);
 133         }
 134     }
 135
 136     private void addCallBack(ListenableFuture<Void> writeResult, String srcMacAddress) {
 137         //WRITE Callback
 138         Futures.addCallback(writeResult, new FutureCallback<Void>() {
 139             @Override
 140             public void onSuccess(Void noarg) {
 141                 LOG.debug("Successfully removed macEntry {} from Operational Datastore", srcMacAddress);
 142             }
 143
 144             @Override
 145             public void onFailure(Throwable error) {
 146                 LOG.debug("Error {} while removing macEntry {} from Operational Datastore", error, srcMacAddress);
 147             }
 148         });
 149     }
 150
 151     @Override
 152     public void onFlowUpdated(FlowUpdated arg0) {
 153         // TODO Auto-generated method stub
 154     }
 155
 156     @Override
 157     public void onNodeErrorNotification(NodeErrorNotification arg0) {
 158         // TODO Auto-generated method stub
 159
 160     }
 161
 162     @Override
 163     public void onNodeExperimenterErrorNotification(NodeExperimenterErrorNotification arg0) {
 164         // TODO Auto-generated method stub
 165
 166     }
 167
 168     @Override
 169     public void onSwitchFlowRemoved(SwitchFlowRemoved switchFlowRemoved) {
 170
 171     }
 172
 173
 174 }