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 static org.opendaylight.mdsal.binding.util.Datastore.CONFIGURATION;
  11 import static org.opendaylight.mdsal.binding.util.Datastore.OPERATIONAL;
  12
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.Futures;
  15 import com.google.common.util.concurrent.ListenableFuture;
  16 import com.google.common.util.concurrent.MoreExecutors;
  17 import java.util.ArrayList;
  18 import java.util.List;
  19 import java.util.Locale;
  20 import java.util.Optional;
  21 import java.util.concurrent.ExecutionException;
  22 import javax.inject.Inject;
  23 import javax.inject.Singleton;
  24 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  25 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  26 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  27 import org.opendaylight.genius.mdsalutil.NwConstants;
  28 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  29 import org.opendaylight.infrautils.utils.concurrent.NamedSimpleReentrantLock;
  30 import org.opendaylight.mdsal.binding.api.DataBroker;
  31 import org.opendaylight.mdsal.binding.util.Datastore;
  32 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunner;
  33 import org.opendaylight.mdsal.binding.util.ManagedNewTransactionRunnerImpl;
  34 import org.opendaylight.mdsal.binding.util.TypedReadWriteTransaction;
  35 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  36 import org.opendaylight.netvirt.elan.cache.ElanInstanceCache;
  37 import org.opendaylight.netvirt.elan.utils.ElanConstants;
  38 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeExperimenterErrorNotification;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SwitchFlowRemoved;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  51 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  52 import org.opendaylight.yangtools.yang.common.Uint32;
  53 import org.opendaylight.yangtools.yang.common.Uint64;
  54 import org.slf4j.Logger;
  55 import org.slf4j.LoggerFactory;
  56
  57 @Singleton
  58 public class ElanSmacFlowEventListener implements SalFlowListener {
  59
  60     private static final Logger LOG = LoggerFactory.getLogger(ElanSmacFlowEventListener.class);
  61
  62     private final DataBroker broker;
  63     private final ManagedNewTransactionRunner txRunner;
  64     private final IInterfaceManager interfaceManager;
  65     private final ElanUtils elanUtils;
  66     private final JobCoordinator jobCoordinator;
  67     private final ElanInstanceCache elanInstanceCache;
  68
  69     @Inject
  70     public ElanSmacFlowEventListener(DataBroker broker, IInterfaceManager interfaceManager, ElanUtils elanUtils,
  71             JobCoordinator jobCoordinator, ElanInstanceCache elanInstanceCache) {
  72         this.broker = broker;
  73         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  74         this.interfaceManager = interfaceManager;
  75         this.elanUtils = elanUtils;
  76         this.jobCoordinator = jobCoordinator;
  77         this.elanInstanceCache = elanInstanceCache;
  78     }
  79
  80     @Override
  81     public void onFlowAdded(FlowAdded arg0) {
  82         // TODO Auto-generated method stub
  83
  84     }
  85
  86     @Override
  87     public void onFlowRemoved(FlowRemoved flowRemoved) {
  88         short tableId = flowRemoved.getTableId().toJava();
  89         if (tableId == NwConstants.ELAN_SMAC_TABLE) {
  90             Uint64 metadata = flowRemoved.getMatch().getMetadata().getMetadata();
  91             Uint32 elanTag = Uint32.valueOf(MetaDataUtil.getElanTagFromMetadata(metadata));
  92             ElanTagName elanTagInfo = elanUtils.getElanInfoByElanTag(elanTag);
  93             if (elanTagInfo == null) {
  94                 return;
  95             }
  96             final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch()
  97                     .getEthernetSource().getAddress().getValue().toUpperCase(Locale.getDefault());
  98             Uint64 portTag = MetaDataUtil.getLportFromMetadata(metadata);
  99             if (portTag.intValue() == 0) {
 100                 LOG.debug("Flow removed event on SMAC flow entry. But having port Tag as 0 ");
 101                 return;
 102             }
 103             Optional<IfIndexInterface> existingInterfaceInfo = elanUtils
 104                     .getInterfaceInfoByInterfaceTag(Uint32.valueOf(portTag.longValue()));
 105             if (!existingInterfaceInfo.isPresent()) {
 106                 LOG.debug("Interface is not available for port Tag {}", portTag);
 107                 return;
 108             }
 109             String interfaceName = existingInterfaceInfo.get().getInterfaceName();
 110             PhysAddress physAddress = new PhysAddress(srcMacAddress);
 111             if (interfaceName == null) {
 112                 LOG.error("LPort record not found for tag {}", portTag);
 113                 return;
 114             }
 115             jobCoordinator.enqueueJob(ElanUtils.getElanInterfaceJobKey(interfaceName), () -> {
 116                 List<ListenableFuture<?>> elanFutures = new ArrayList<>();
 117                 MacEntry macEntry = elanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
 118                 InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
 119                 String elanInstanceName = elanTagInfo.getName();
 120                 LOG.info("Deleting the Mac-Entry:{} present on ElanInstance:{}", macEntry, elanInstanceName);
 121                 ListenableFuture<?> result = txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, tx -> {
 122                     if (macEntry != null && interfaceInfo != null) {
 123                         deleteSmacAndDmacFlows(elanInstanceCache.get(elanInstanceName).orElse(null),
 124                                 interfaceInfo, srcMacAddress, tx);
 125                     } else if (macEntry == null) { //Remove flow of src flow entry only for MAC movement
 126                         MacEntry macEntryOfElanForwarding = elanUtils.getMacEntryForElanInstance(elanTagInfo.getName(),
 127                                 physAddress).orElse(null);
 128                         if (macEntryOfElanForwarding != null) {
 129                             String macAddress = macEntryOfElanForwarding.getMacAddress().getValue();
 130                             elanUtils.deleteSmacFlowOnly(elanInstanceCache.get(elanInstanceName).orElse(null),
 131                                     interfaceInfo, macAddress, tx);
 132                         } else {
 133                             deleteSmacAndDmacFlows(elanInstanceCache.get(elanInstanceName).orElse(null), interfaceInfo,
 134                                     srcMacAddress, tx);
 135                         }
 136                     }
 137                 });
 138                 elanFutures.add(result);
 139                 addCallBack(result, srcMacAddress);
 140                 InstanceIdentifier<MacEntry> macEntryIdForElanInterface = ElanUtils
 141                         .getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
 142                 Optional<MacEntry> existingInterfaceMacEntry = ElanUtils.read(broker,
 143                         LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 144                 if (existingInterfaceMacEntry.isPresent()) {
 145                     ListenableFuture<?> future = txRunner.callWithNewWriteOnlyTransactionAndSubmit(OPERATIONAL,
 146                         tx -> {
 147                             tx.delete(macEntryIdForElanInterface);
 148                             MacEntry macEntryInElanInstance = elanUtils.getMacEntryForElanInstance(elanInstanceName,
 149                                 physAddress).orElse(null);
 150                             if (macEntryInElanInstance != null
 151                                 && macEntryInElanInstance.getInterface().equals(interfaceName)) {
 152                                 InstanceIdentifier<MacEntry> macEntryIdForElanInstance = ElanUtils
 153                                     .getMacEntryOperationalDataPath(elanInstanceName, physAddress);
 154                                 tx.delete(macEntryIdForElanInstance);
 155                             }
 156                         });
 157                     elanFutures.add(future);
 158                     addCallBack(future, srcMacAddress);
 159                 }
 160                 return elanFutures;
 161             }, ElanConstants.JOB_MAX_RETRIES);
 162         }
 163     }
 164
 165     private static void addCallBack(ListenableFuture<?> writeResult, String srcMacAddress) {
 166         //WRITE Callback
 167         Futures.addCallback(writeResult, new FutureCallback<Object>() {
 168             @Override
 169             public void onSuccess(Object noarg) {
 170                 LOG.debug("Successfully removed macEntry {} from Operational Datastore", srcMacAddress);
 171             }
 172
 173             @Override
 174             public void onFailure(Throwable error) {
 175                 LOG.debug("Error {} while removing macEntry {} from Operational Datastore", error, srcMacAddress);
 176             }
 177         }, MoreExecutors.directExecutor());
 178     }
 179
 180     private void deleteSmacAndDmacFlows(ElanInstance elanInfo, InterfaceInfo interfaceInfo, String macAddress,
 181                                         TypedReadWriteTransaction<Datastore.Configuration> deleteFlowTx)
 182             throws ExecutionException, InterruptedException {
 183         if (elanInfo == null || interfaceInfo == null) {
 184             return;
 185         }
 186         try (NamedSimpleReentrantLock.Acquired lock = elanUtils.lockElanMacDPN(elanInfo.getElanTag().toJava(),
 187                 macAddress, interfaceInfo.getDpId())) {
 188             elanUtils.deleteMacFlows(elanInfo, interfaceInfo, macAddress, /* alsoDeleteSMAC */ true, deleteFlowTx);
 189         }
 190     }
 191
 192     @Override
 193     public void onFlowUpdated(FlowUpdated arg0) {
 194         // TODO Auto-generated method stub
 195     }
 196
 197     @Override
 198     public void onNodeErrorNotification(NodeErrorNotification arg0) {
 199         // TODO Auto-generated method stub
 200
 201     }
 202
 203     @Override
 204     public void onNodeExperimenterErrorNotification(NodeExperimenterErrorNotification arg0) {
 205         // TODO Auto-generated method stub
 206
 207     }
 208
 209     @Override
 210     public void onSwitchFlowRemoved(SwitchFlowRemoved switchFlowRemoved) {
 211
 212     }
 213
 214
 215 }