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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.genius.interfacemanager.globals.InterfaceInfo;
  19 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  20 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
  21 import org.opendaylight.genius.mdsalutil.NwConstants;
  22 import org.opendaylight.netvirt.elan.utils.ElanUtils;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowAdded;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowRemoved;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowUpdated;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeErrorNotification;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.NodeExperimenterErrorNotification;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowListener;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SwitchFlowRemoved;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.tag.name.map.ElanTagName;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.forwarding.entries.MacEntry;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 @SuppressWarnings("deprecation")
  39 public class ElanSmacFlowEventListener implements SalFlowListener {
  40
  41     private static final Logger LOG = LoggerFactory.getLogger(ElanSmacFlowEventListener.class);
  42
  43     private final DataBroker broker;
  44     private final IInterfaceManager interfaceManager;
  45     private final ElanUtils elanUtils;
  46
  47     public ElanSmacFlowEventListener(DataBroker broker, IInterfaceManager interfaceManager, ElanUtils elanUtils) {
  48         this.broker = broker;
  49         this.interfaceManager = interfaceManager;
  50         this.elanUtils = elanUtils;
  51     }
  52
  53     @Override
  54     public void onFlowAdded(FlowAdded arg0) {
  55         // TODO Auto-generated method stub
  56
  57     }
  58
  59     @Override
  60     public void onFlowRemoved(FlowRemoved flowRemoved) {
  61         short tableId = flowRemoved.getTableId();
  62         if (tableId == NwConstants.ELAN_SMAC_TABLE) {
  63             BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
  64             long elanTag = MetaDataUtil.getElanTagFromMetadata(metadata);
  65             ElanTagName elanTagInfo = elanUtils.getElanInfoByElanTag(elanTag);
  66             if (elanTagInfo == null) {
  67                 return;
  68             }
  69             final String srcMacAddress = flowRemoved.getMatch().getEthernetMatch()
  70                 .getEthernetSource().getAddress().getValue().toUpperCase();
  71             int portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
  72             if (portTag == 0) {
  73                 LOG.debug(String.format("Flow removed event on SMAC flow entry. But having port Tag as 0 "));
  74                 return;
  75             }
  76             Optional<IfIndexInterface> existingInterfaceInfo = elanUtils.getInterfaceInfoByInterfaceTag(portTag);
  77             if (!existingInterfaceInfo.isPresent()) {
  78                 LOG.debug("Interface is not available for port Tag {}", portTag);
  79                 return;
  80             }
  81             String interfaceName = existingInterfaceInfo.get().getInterfaceName();
  82             PhysAddress physAddress = new PhysAddress(srcMacAddress);
  83             if (interfaceName == null) {
  84                 LOG.error(String.format("LPort record not found for tag %d", portTag));
  85                 return;
  86             }
  87             MacEntry macEntry = elanUtils.getInterfaceMacEntriesOperationalDataPath(interfaceName, physAddress);
  88             InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfo(interfaceName);
  89             String elanInstanceName = elanTagInfo.getName();
  90             if (macEntry != null && interfaceInfo != null) {
  91                 WriteTransaction deleteFlowTx = broker.newWriteOnlyTransaction();
  92                 elanUtils.deleteMacFlows(ElanUtils.getElanInstanceByName(broker, elanInstanceName), interfaceInfo,
  93                         macEntry, deleteFlowTx);
  94                 ListenableFuture<Void> result = deleteFlowTx.submit();
  95                 addCallBack(result, srcMacAddress);
  96             }
  97             InstanceIdentifier<MacEntry> macEntryIdForElanInterface = ElanUtils
  98                     .getInterfaceMacEntriesIdentifierOperationalDataPath(interfaceName, physAddress);
  99             WriteTransaction tx = broker.newWriteOnlyTransaction();
 100             Optional<MacEntry> existingInterfaceMacEntry = elanUtils.read(broker,
 101                 LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 102             if (existingInterfaceMacEntry.isPresent()) {
 103                 tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInterface);
 104                 MacEntry macEntryInElanInstance = elanUtils.getMacEntryForElanInstance(elanInstanceName,
 105                         physAddress).orNull();
 106                 if (macEntryInElanInstance != null
 107                         && macEntryInElanInstance.getInterface().equals(interfaceName)) {
 108                     InstanceIdentifier<MacEntry> macEntryIdForElanInstance = ElanUtils
 109                             .getMacEntryOperationalDataPath(elanInstanceName, physAddress);
 110                     tx.delete(LogicalDatastoreType.OPERATIONAL, macEntryIdForElanInstance);
 111                 }
 112                 ListenableFuture<Void> writeResult = tx.submit();
 113                 addCallBack(writeResult, srcMacAddress);
 114             }
 115         }
 116     }
 117
 118     private void addCallBack(ListenableFuture<Void> writeResult, String srcMacAddress) {
 119         //WRITE Callback
 120         Futures.addCallback(writeResult, new FutureCallback<Void>() {
 121             @Override
 122             public void onSuccess(Void noarg) {
 123                 LOG.debug("Successfully removed macEntry {} from Operational Datastore", srcMacAddress);
 124             }
 125
 126             @Override
 127             public void onFailure(Throwable error) {
 128                 LOG.debug("Error {} while removing macEntry {} from Operational Datastore", error, srcMacAddress);
 129             }
 130         });
 131     }
 132
 133     @Override
 134     public void onFlowUpdated(FlowUpdated arg0) {
 135         // TODO Auto-generated method stub
 136
 137     }
 138
 139     @Override
 140     public void onNodeErrorNotification(NodeErrorNotification arg0) {
 141         // TODO Auto-generated method stub
 142
 143     }
 144
 145     @Override
 146     public void onNodeExperimenterErrorNotification(NodeExperimenterErrorNotification arg0) {
 147         // TODO Auto-generated method stub
 148
 149     }
 150
 151     @Override
 152     public void onSwitchFlowRemoved(SwitchFlowRemoved switchFlowRemoved) {
 153
 154     }
 155
 156
 157 }