itm/itm-impl/src/main/java/org/opendaylight/genius/itm/confighelpers/ItmInternalTunnelAddWorker.java

   1 /*
   2  * Copyright (c) 2016, 2017 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.genius.itm.confighelpers;
   9
  10 import static java.util.Collections.singletonList;
  11 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  12 import static org.opendaylight.mdsal.binding.api.WriteTransaction.CREATE_MISSING_PARENTS;
  13
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import java.time.Duration;
  16 import java.util.ArrayList;
  17 import java.util.Collection;
  18 import java.util.Collections;
  19 import java.util.List;
  20 import java.util.Objects;
  21 import java.util.Optional;
  22 import java.util.concurrent.Callable;
  23 import java.util.concurrent.ExecutionException;
  24 import org.opendaylight.genius.datastoreutils.listeners.DataTreeEventCallbackRegistrar;
  25 import org.opendaylight.genius.infra.Datastore.Configuration;
  26 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  27 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  28 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  29 import org.opendaylight.genius.infra.TypedWriteTransaction;
  30 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  31 import org.opendaylight.genius.itm.cache.OfEndPointCache;
  32 import org.opendaylight.genius.itm.cache.OvsBridgeRefEntryCache;
  33 import org.opendaylight.genius.itm.globals.ITMConstants;
  34 import org.opendaylight.genius.itm.impl.ITMBatchingUtils;
  35 import org.opendaylight.genius.itm.impl.ItmUtils;
  36 import org.opendaylight.genius.itm.impl.TunnelMonitoringConfig;
  37 import org.opendaylight.genius.itm.itmdirecttunnels.renderer.ovs.utilities.DirectTunnelUtils;
  38 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  39 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  40 import org.opendaylight.mdsal.binding.api.DataBroker;
  41 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  42 import org.opendaylight.mdsal.common.api.ReadFailedException;
  43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  44 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefs;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelMonitoringTypeBase;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelMonitoringTypeLldp;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeBase;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeLogicalGroup;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeVxlan;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.tunnel.optional.params.TunnelOptions;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.config.rev160406.ItmConfig;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.meta.rev171210.OvsBridgeRefInfo;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.meta.rev171210.ovs.bridge.ref.info.OvsBridgeRefEntry;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.meta.rev171210.ovs.bridge.ref.info.OvsBridgeRefEntryKey;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.DpnEndpoints;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.DpnEndpointsBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.DpnTepsState;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.DpnTepsStateBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.TunnelList;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.DPNTEPsInfo;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.DPNTEPsInfoBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.dpn.teps.info.TunnelEndPoints;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.DpnsTeps;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.DpnsTepsBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.DpnsTepsKey;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.dpns.teps.RemoteDpns;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.dpns.teps.RemoteDpnsBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.teps.state.dpns.teps.RemoteDpnsKey;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.tunnel.list.InternalTunnel;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.tunnel.list.InternalTunnelKey;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  75 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  76 import org.opendaylight.yangtools.yang.common.OperationFailedException;
  77 import org.opendaylight.yangtools.yang.common.Uint64;
  78 import org.slf4j.Logger;
  79 import org.slf4j.LoggerFactory;
  80
  81 public final class ItmInternalTunnelAddWorker {
  82
  83     private static final Logger LOG = LoggerFactory.getLogger(ItmInternalTunnelAddWorker.class) ;
  84
  85     private final ItmConfig itmCfg;
  86     private final Integer monitorInterval;
  87     private final boolean isTunnelMonitoringEnabled;
  88     private final Class<? extends TunnelMonitoringTypeBase> monitorProtocol;
  89
  90     private final DataBroker dataBroker;
  91     private final ManagedNewTransactionRunner txRunner;
  92     private final JobCoordinator jobCoordinator;
  93     private final DirectTunnelUtils directTunnelUtils;
  94     private final IInterfaceManager interfaceManager;
  95     private final OvsBridgeRefEntryCache ovsBridgeRefEntryCache;
  96     private final OfEndPointCache ofEndPointCache;
  97     private final DataTreeEventCallbackRegistrar eventCallbacks;
  98
  99     public ItmInternalTunnelAddWorker(DataBroker dataBroker, JobCoordinator jobCoordinator,
 100                                       TunnelMonitoringConfig tunnelMonitoringConfig, ItmConfig itmCfg,
 101                                       DirectTunnelUtils directTunnelUtil,
 102                                       IInterfaceManager interfaceManager,
 103                                       OvsBridgeRefEntryCache ovsBridgeRefEntryCache,
 104                                       OfEndPointCache ofEndPointCache,
 105                                       DataTreeEventCallbackRegistrar eventCallbacks) {
 106         this.dataBroker = dataBroker;
 107         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
 108         this.jobCoordinator = jobCoordinator;
 109         this.itmCfg = itmCfg;
 110         this.directTunnelUtils = directTunnelUtil;
 111         this.interfaceManager = interfaceManager;
 112         this.ovsBridgeRefEntryCache = ovsBridgeRefEntryCache;
 113         this.ofEndPointCache = ofEndPointCache;
 114         this.eventCallbacks = eventCallbacks;
 115
 116         isTunnelMonitoringEnabled = tunnelMonitoringConfig.isTunnelMonitoringEnabled();
 117         monitorProtocol = tunnelMonitoringConfig.getMonitorProtocol();
 118         monitorInterval = tunnelMonitoringConfig.getMonitorInterval();
 119     }
 120
 121     public List<ListenableFuture<Void>> buildAllTunnels(IMdsalApiManager mdsalManager, List<DPNTEPsInfo> cfgdDpnList,
 122                                                         Collection<DPNTEPsInfo> meshedDpnList) {
 123         LOG.trace("Building tunnels with DPN List {} " , cfgdDpnList);
 124         if (null == cfgdDpnList || cfgdDpnList.isEmpty()) {
 125             LOG.error(" Build Tunnels was invoked with empty list");
 126             return Collections.emptyList();
 127         }
 128
 129         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION, tx -> {
 130             for (DPNTEPsInfo dpn : cfgdDpnList) {
 131                 //#####if dpn is not in meshedDpnList
 132                 buildTunnelFrom(tx, dpn, meshedDpnList, mdsalManager);
 133                 if (meshedDpnList != null) {
 134                     meshedDpnList.add(dpn);
 135                 }
 136                 // Update the config datastore -- FIXME -- Error Handling
 137                 updateDpnTepInfoToConfig(tx, dpn, directTunnelUtils);
 138             }
 139         }));
 140     }
 141
 142     private static void updateDpnTepInfoToConfig(TypedWriteTransaction<Configuration> tx, DPNTEPsInfo dpn,
 143         DirectTunnelUtils directTunnelUtils) throws ExecutionException, InterruptedException, OperationFailedException {
 144         LOG.debug("Updating CONFIGURATION datastore with DPN {} ", dpn);
 145         InstanceIdentifier<DpnEndpoints> dep = InstanceIdentifier.create(DpnEndpoints.class) ;
 146         List<DPNTEPsInfo> dpnList = new ArrayList<>() ;
 147         dpnList.add(new DPNTEPsInfoBuilder(dpn)
 148             .setDstId(directTunnelUtils.allocateId(ITMConstants.ITM_IDPOOL_NAME, dpn.getDPNID().toString())).build());
 149         DpnEndpoints tnlBuilder = new DpnEndpointsBuilder().setDPNTEPsInfo(dpnList).build() ;
 150         tx.merge(dep, tnlBuilder);
 151     }
 152
 153     private void buildTunnelFrom(TypedReadWriteTransaction<Configuration> tx, DPNTEPsInfo srcDpn,
 154         Collection<DPNTEPsInfo> meshedDpnList, IMdsalApiManager mdsalManager)
 155         throws ExecutionException, InterruptedException, OperationFailedException {
 156         LOG.trace("Building tunnels from DPN {} " , srcDpn);
 157         if (null == meshedDpnList || meshedDpnList.isEmpty()) {
 158             LOG.debug("No DPN in the mesh ");
 159             return ;
 160         }
 161         for (DPNTEPsInfo dstDpn: meshedDpnList) {
 162             if (!srcDpn.equals(dstDpn)) {
 163                 wireUpWithinTransportZone(tx, srcDpn, dstDpn, mdsalManager);
 164             }
 165         }
 166
 167     }
 168
 169     private void wireUpWithinTransportZone(TypedReadWriteTransaction<Configuration> tx, DPNTEPsInfo srcDpn,
 170         DPNTEPsInfo dstDpn, IMdsalApiManager mdsalManager)
 171         throws ExecutionException, InterruptedException, OperationFailedException {
 172         LOG.trace("Wiring up within Transport Zone for Dpns {}, {} " , srcDpn, dstDpn);
 173         List<TunnelEndPoints> srcEndPts = srcDpn.nonnullTunnelEndPoints();
 174         List<TunnelEndPoints> dstEndPts = dstDpn.nonnullTunnelEndPoints();
 175
 176         for (TunnelEndPoints srcte : srcEndPts) {
 177             for (TunnelEndPoints dstte : dstEndPts) {
 178                 // Compare the Transport zones
 179                 if (!Objects.equals(srcDpn.getDPNID(), dstDpn.getDPNID())) {
 180                     if (!ItmUtils.getIntersection(srcte.nonnullTzMembership(),
 181                             dstte.nonnullTzMembership()).isEmpty()) {
 182                         // wire them up
 183                         wireUpBidirectionalTunnel(tx, srcte, dstte, srcDpn.getDPNID(), dstDpn.getDPNID(), mdsalManager);
 184                         if (!ItmTunnelAggregationHelper.isTunnelAggregationEnabled()) {
 185                             // CHECK THIS -- Assumption -- One end point per Dpn per transport zone
 186                             break;
 187                         }
 188                     }
 189                 }
 190             }
 191         }
 192     }
 193
 194     private void wireUpBidirectionalTunnel(TypedReadWriteTransaction<Configuration> tx, TunnelEndPoints srcte,
 195             TunnelEndPoints dstte, Uint64 srcDpnId, Uint64 dstDpnId, IMdsalApiManager mdsalManager)
 196                     throws ExecutionException, InterruptedException, OperationFailedException {
 197         // Setup the flow for LLDP monitoring -- PUNT TO CONTROLLER
 198
 199         if (monitorProtocol.isAssignableFrom(TunnelMonitoringTypeLldp.class)) {
 200             ItmUtils.addTerminatingServiceTable(tx, srcDpnId, mdsalManager);
 201             ItmUtils.addTerminatingServiceTable(tx, dstDpnId, mdsalManager);
 202         }
 203         // Create the forward direction tunnel
 204         if (!wireUp(tx, srcte, dstte, srcDpnId, dstDpnId)) {
 205             LOG.error("Could not build tunnel between end points {}, {} " , srcte, dstte);
 206         }
 207
 208         // CHECK IF FORWARD IS NOT BUILT , REVERSE CAN BE BUILT
 209         // Create the tunnel for the reverse direction
 210         if (!wireUp(tx, dstte, srcte, dstDpnId, srcDpnId)) {
 211             LOG.error("Could not build tunnel between end points {}, {} " , dstte, srcte);
 212         }
 213     }
 214
 215     private boolean wireUp(TypedWriteTransaction<Configuration> tx, TunnelEndPoints srcte, TunnelEndPoints dstte,
 216             Uint64 srcDpnId, Uint64 dstDpnId)
 217                     throws ExecutionException, InterruptedException, OperationFailedException {
 218         // Wire Up logic
 219         LOG.trace("Wiring between source tunnel end points {}, destination tunnel end points {}", srcte, dstte);
 220         String interfaceName = srcte.getInterfaceName();
 221         Class<? extends TunnelTypeBase> tunType = srcte.getTunnelType();
 222         String tunTypeStr = srcte.getTunnelType().getName();
 223         // Form the trunk Interface Name
 224
 225         String trunkInterfaceName = ItmUtils.getTrunkInterfaceName(interfaceName,
 226                 srcte.getIpAddress().stringValue(), dstte.getIpAddress().stringValue(), tunTypeStr);
 227
 228         String parentInterfaceName = null;
 229         if (tunType.isAssignableFrom(TunnelTypeVxlan.class)) {
 230             parentInterfaceName = createLogicalGroupTunnel(srcDpnId, dstDpnId);
 231         }
 232         if (interfaceManager.isItmDirectTunnelsEnabled()) {
 233             createInternalDirectTunnels(srcte, dstte, srcDpnId, dstDpnId, tunType, trunkInterfaceName,
 234                     parentInterfaceName);
 235         } else {
 236             createTunnelInterface(srcte, dstte, srcDpnId, tunType, trunkInterfaceName, parentInterfaceName);
 237             // also update itm-state ds?
 238             createInternalTunnel(tx, srcDpnId, dstDpnId, tunType, trunkInterfaceName);
 239         }
 240         return true;
 241     }
 242
 243     private void createTunnelInterface(TunnelEndPoints srcte, TunnelEndPoints dstte, Uint64 srcDpnId,
 244             Class<? extends TunnelTypeBase> tunType, String trunkInterfaceName, String parentInterfaceName) {
 245         String gateway = srcte.getIpAddress().getIpv4Address() != null ? "0.0.0.0" : "::";
 246         IpAddress gatewayIpObj = IpAddressBuilder.getDefaultInstance(gateway);
 247         IpAddress gwyIpAddress = gatewayIpObj;
 248         LOG.debug(" Creating Trunk Interface with parameters trunk I/f Name - {}, parent I/f name - {}, "
 249                 + "source IP - {}, destination IP - {} gateway IP - {}",
 250                 trunkInterfaceName, srcte.getInterfaceName(), srcte.getIpAddress(), dstte.getIpAddress(), gwyIpAddress);
 251         boolean useOfTunnel = ItmUtils.falseIfNull(srcte.isOptionOfTunnel());
 252
 253         List<TunnelOptions> tunOptions = ItmUtils.buildTunnelOptions(srcte, itmCfg);
 254         Boolean isMonitorEnabled = !tunType.isAssignableFrom(TunnelTypeLogicalGroup.class) && isTunnelMonitoringEnabled;
 255         Interface iface = ItmUtils.buildTunnelInterface(srcDpnId, trunkInterfaceName,
 256                 trunkInterfaceDecription(ItmUtils.convertTunnelTypetoString(tunType)),
 257                 true, tunType, srcte.getIpAddress(), dstte.getIpAddress(), true,
 258                 isMonitorEnabled, monitorProtocol, monitorInterval, useOfTunnel, parentInterfaceName, tunOptions);
 259         LOG.debug(" Trunk Interface builder - {} ", iface);
 260         InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkInterfaceName);
 261         LOG.debug(" Trunk Interface Identifier - {} ", trunkIdentifier);
 262         LOG.trace(" Writing Trunk Interface to Config DS {}, {} ", trunkIdentifier, iface);
 263         ITMBatchingUtils.update(trunkIdentifier, iface, ITMBatchingUtils.EntityType.DEFAULT_CONFIG);
 264         ItmUtils.ITM_CACHE.addInterface(iface);
 265     }
 266
 267     private static String trunkInterfaceDecription(String type) {
 268         return type + " Trunk Interface";
 269     }
 270
 271     private static void createInternalTunnel(TypedWriteTransaction<Configuration> tx, Uint64 srcDpnId,
 272             Uint64 dstDpnId, Class<? extends TunnelTypeBase> tunType, String trunkInterfaceName) {
 273         InstanceIdentifier<InternalTunnel> path = InstanceIdentifier.create(TunnelList.class)
 274                 .child(InternalTunnel.class, new InternalTunnelKey(dstDpnId, srcDpnId, tunType));
 275         InternalTunnel tnl = ItmUtils.buildInternalTunnel(srcDpnId, dstDpnId, tunType, trunkInterfaceName);
 276         // Switching to individual transaction submit as batching latencies is causing ELAN failures.
 277         // Will revert when ELAN can handle this.
 278         // ITMBatchingUtils.update(path, tnl, ITMBatchingUtils.EntityType.DEFAULT_CONFIG);
 279         tx.merge(path, tnl, CREATE_MISSING_PARENTS);
 280         ItmUtils.ITM_CACHE.addInternalTunnel(tnl);
 281     }
 282
 283     private String createLogicalGroupTunnel(Uint64 srcDpnId, Uint64 dstDpnId) {
 284         boolean tunnelAggregationEnabled = ItmTunnelAggregationHelper.isTunnelAggregationEnabled();
 285         if (!tunnelAggregationEnabled) {
 286             return null;
 287         }
 288         String logicTunnelGroupName = ItmUtils.getLogicalTunnelGroupName(srcDpnId, dstDpnId);
 289         ItmTunnelAggregationWorker addWorker =
 290                 new ItmTunnelAggregationWorker(logicTunnelGroupName, srcDpnId, dstDpnId, dataBroker);
 291         jobCoordinator.enqueueJob(logicTunnelGroupName, addWorker);
 292         return logicTunnelGroupName;
 293     }
 294
 295     private static class ItmTunnelAggregationWorker implements Callable<List<? extends ListenableFuture<?>>> {
 296
 297         private final String logicTunnelGroupName;
 298         private final Uint64 srcDpnId;
 299         private final Uint64 dstDpnId;
 300         private final ManagedNewTransactionRunner txRunner;
 301
 302         ItmTunnelAggregationWorker(String logicGroupName, Uint64 srcDpnId, Uint64 dstDpnId, DataBroker broker) {
 303             this.logicTunnelGroupName = logicGroupName;
 304             this.srcDpnId = srcDpnId;
 305             this.dstDpnId = dstDpnId;
 306             this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
 307         }
 308
 309         @Override
 310         public List<ListenableFuture<Void>> call() {
 311             return singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx -> {
 312                 //The logical tunnel interface be created only when the first tunnel interface on each OVS is created
 313                 InternalTunnel tunnel = ItmUtils.ITM_CACHE.getInternalTunnel(logicTunnelGroupName);
 314                 if (tunnel == null) {
 315                     LOG.info("MULTIPLE_VxLAN_TUNNELS: add the logical tunnel group {} because a first tunnel"
 316                         + " interface on srcDpnId {} dstDpnId {} is created", logicTunnelGroupName, srcDpnId, dstDpnId);
 317                     createLogicalTunnelInterface(srcDpnId, TunnelTypeLogicalGroup.class, logicTunnelGroupName);
 318                     createInternalTunnel(tx, srcDpnId, dstDpnId, TunnelTypeLogicalGroup.class, logicTunnelGroupName);
 319                 } else {
 320                     LOG.debug("MULTIPLE_VxLAN_TUNNELS: not first tunnel on srcDpnId {} dstDpnId {}", srcDpnId,
 321                             dstDpnId);
 322                 }
 323             }));
 324         }
 325
 326         private static void createLogicalTunnelInterface(Uint64 srcDpnId,
 327                 Class<? extends TunnelTypeBase> tunType, String interfaceName) {
 328             Interface iface = ItmUtils.buildLogicalTunnelInterface(srcDpnId, interfaceName,
 329                     String.format("%s %s",ItmUtils.convertTunnelTypetoString(tunType), "Interface"), true);
 330             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(interfaceName);
 331             ITMBatchingUtils.update(trunkIdentifier, iface, ITMBatchingUtils.EntityType.DEFAULT_CONFIG);
 332             ItmUtils.ITM_CACHE.addInterface(iface);
 333         }
 334     }
 335
 336     private void createInternalDirectTunnels(TunnelEndPoints srcte, TunnelEndPoints dstte, Uint64 srcDpnId,
 337             Uint64 dstDpnId, Class<? extends TunnelTypeBase> tunType, String trunkInterfaceName,
 338             String parentInterfaceName) throws OperationFailedException {
 339         IpAddress gatewayIpObj = IpAddressBuilder.getDefaultInstance("0.0.0.0");
 340         IpAddress gwyIpAddress = gatewayIpObj;
 341         LOG.debug("Creating Trunk Interface with parameters trunk I/f Name - {}, parent I/f name - {}, source IP - {},"
 342                         + " destination IP - {} gateway IP - {}", trunkInterfaceName, parentInterfaceName,
 343                 srcte.getIpAddress(), dstte.getIpAddress(), gwyIpAddress) ;
 344
 345         boolean useOfTunnel = itmCfg.isUseOfTunnels();
 346
 347         List<TunnelOptions> tunOptions = ItmUtils.buildTunnelOptions(srcte, itmCfg);
 348         Boolean isMonitorEnabled = !tunType.isAssignableFrom(TunnelTypeLogicalGroup.class) && isTunnelMonitoringEnabled;
 349         Interface iface = ItmUtils.buildTunnelInterface(srcDpnId, trunkInterfaceName,
 350                 trunkInterfaceDecription(ItmUtils.convertTunnelTypetoString(srcte.getTunnelType())),
 351                 true, tunType, srcte.getIpAddress(), dstte.getIpAddress(), true,
 352                 isMonitorEnabled, monitorProtocol, monitorInterval, useOfTunnel, parentInterfaceName, tunOptions);
 353         LOG.debug("Trunk Interface builder - {} ", iface);
 354
 355         final DpnTepsStateBuilder dpnTepsStateBuilder = new DpnTepsStateBuilder();
 356         final DpnsTepsBuilder dpnsTepsBuilder = new DpnsTepsBuilder();
 357         final List<DpnsTeps> dpnTeps = new ArrayList<>();
 358         final List<RemoteDpns> remoteDpns = new ArrayList<>();
 359         String ofTunnelPortName = null;
 360         dpnsTepsBuilder.withKey(new DpnsTepsKey(srcDpnId));
 361         dpnsTepsBuilder.setTunnelType(srcte.getTunnelType());
 362         dpnsTepsBuilder.setSourceDpnId(srcDpnId);
 363         if (useOfTunnel) {
 364             String tunnelType = ItmUtils.convertTunnelTypetoString(srcte.getTunnelType());
 365             ofTunnelPortName = DirectTunnelUtils.generateOfPortName(srcDpnId, tunnelType);
 366             dpnsTepsBuilder.setOfTunnel(ofTunnelPortName);
 367         }
 368         RemoteDpnsBuilder remoteDpn = new RemoteDpnsBuilder();
 369         remoteDpn.withKey(new RemoteDpnsKey(dstDpnId));
 370         remoteDpn.setDestinationDpnId(dstDpnId);
 371         remoteDpn.setTunnelName(trunkInterfaceName);
 372         remoteDpn.setMonitoringEnabled(isTunnelMonitoringEnabled);
 373         remoteDpn.setMonitoringInterval(monitorInterval);
 374         remoteDpn.setInternal(true);
 375         remoteDpns.add(remoteDpn.build());
 376         dpnsTepsBuilder.setRemoteDpns(remoteDpns);
 377         dpnTeps.add(dpnsTepsBuilder.build());
 378         dpnTepsStateBuilder.setDpnsTeps(dpnTeps);
 379         updateDpnTepInterfaceInfoToConfig(dpnTepsStateBuilder.build());
 380         addTunnelConfiguration(iface, ofTunnelPortName);
 381     }
 382
 383     private static void updateDpnTepInterfaceInfoToConfig(DpnTepsState dpnTeps) {
 384         LOG.debug("Updating CONFIGURATION datastore with DPN-Teps {} ", dpnTeps);
 385         InstanceIdentifier<DpnTepsState> dpnTepsII = InstanceIdentifier.create(DpnTepsState.class);
 386         ITMBatchingUtils.updateContainer(dpnTepsII, dpnTeps, ITMBatchingUtils.EntityType.DEFAULT_CONFIG);
 387     }
 388
 389     private void addTunnelConfiguration(Interface iface, String ofTunnelPortName)
 390                                                                 throws ReadFailedException {
 391         // ITM Direct Tunnels This transaction is not being used -- CHECK
 392         ParentRefs parentRefs = iface.augmentation(ParentRefs.class);
 393         if (parentRefs == null) {
 394             LOG.warn("ParentRefs for interface: {} Not Found. Creation of Tunnel OF-Port not supported"
 395                     + " when dpid not provided.", iface.getName());
 396             return;
 397         }
 398
 399         Uint64 dpId = parentRefs.getDatapathNodeIdentifier();
 400         if (dpId == null) {
 401             LOG.warn("dpid for interface: {} Not Found. No DPID provided. Creation of OF-Port not supported.",
 402                     iface.getName());
 403             return;
 404         }
 405         String tunnelName = ofTunnelPortName != null ? ofTunnelPortName : iface.getName();
 406         // create bridge on switch, if switch is connected
 407         Optional<OvsBridgeRefEntry> ovsBridgeRefEntry = ovsBridgeRefEntryCache.get(dpId);
 408         LOG.info("adding tunnel port configuration for tunnelName: {}", tunnelName);
 409         if (createTunnelPort(dpId)) {
 410             LOG.debug("creating dpn tunnel mapping  for dpn: {} tunnelName: {}", dpId, tunnelName);
 411             DirectTunnelUtils.createBridgeTunnelEntryInConfigDS(dpId, iface.getName());
 412             if (ofTunnelPortName != null) {
 413                 ofEndPointCache.add(dpId, tunnelName);
 414             }
 415             if (ovsBridgeRefEntry.isPresent()) {
 416                 LOG.debug("creating bridge interface on dpn {}", dpId);
 417                 InstanceIdentifier<OvsdbBridgeAugmentation> bridgeIid =
 418                         (InstanceIdentifier<OvsdbBridgeAugmentation>) ovsBridgeRefEntry.get()
 419                                 .getOvsBridgeReference().getValue();
 420                 LOG.debug("adding port to the bridge:{} tunnelName: {}", bridgeIid, tunnelName);
 421                 addPortToBridge(bridgeIid, iface, tunnelName);
 422             } else {
 423                 LOG.debug("Bridge not found. Registering Eventcallback for dpid {}", dpId);
 424
 425                 InstanceIdentifier<OvsBridgeRefEntry> bridgeRefEntryFromDS =
 426                         InstanceIdentifier.builder(OvsBridgeRefInfo.class)
 427                                 .child(OvsBridgeRefEntry.class, new OvsBridgeRefEntryKey(dpId)).build();
 428
 429                 eventCallbacks.onAdd(LogicalDatastoreType.OPERATIONAL, bridgeRefEntryFromDS, (refEntryIid) -> {
 430                     addPortToBridgeOnCallback(iface, tunnelName, refEntryIid);
 431                     return DataTreeEventCallbackRegistrar.NextAction.UNREGISTER;
 432                 }, Duration.ofMillis(5000), (id) -> {
 433                         try {
 434                             Optional<OvsBridgeRefEntry> ovsBridgeRefEntryOnCallback = ovsBridgeRefEntryCache.get(dpId);
 435                             InstanceIdentifier<OvsdbBridgeAugmentation> bridgeIidOnCallback =
 436                                     (InstanceIdentifier<OvsdbBridgeAugmentation>) ovsBridgeRefEntryOnCallback.get()
 437                                             .getOvsBridgeReference().getValue();
 438                             addPortToBridge(bridgeIidOnCallback, iface, tunnelName);
 439                         }   catch (ReadFailedException e) {
 440                             LOG.error("Bridge not found in DS/cache for dpId {}", dpId);
 441                         }
 442                     });
 443             }
 444         }
 445     }
 446
 447     private void addPortToBridge(InstanceIdentifier<?> bridgeIid, Interface iface, String portName) {
 448         IfTunnel ifTunnel = iface.augmentation(IfTunnel.class);
 449         if (ifTunnel != null) {
 450             directTunnelUtils.addTunnelPortToBridge(ifTunnel, bridgeIid, iface, portName);
 451         }
 452     }
 453
 454     private boolean createTunnelPort(Uint64 dpId) {
 455         if (!itmCfg.isUseOfTunnels()) {
 456             return true;
 457         }
 458         return ofEndPointCache.get(dpId) == null;
 459     }
 460
 461     private void addPortToBridgeOnCallback(Interface iface, String portName, OvsBridgeRefEntry bridgeRefEntry) {
 462         InstanceIdentifier<OvsdbBridgeAugmentation> bridgeIid =
 463                 (InstanceIdentifier<OvsdbBridgeAugmentation>) bridgeRefEntry.getOvsBridgeReference().getValue();
 464         addPortToBridge(bridgeIid, iface, portName);
 465     }
 466 }