itm/itm-impl/src/main/java/org/opendaylight/genius/itm/confighelpers/ItmExternalTunnelDeleteWorker.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.genius.itm.confighelpers;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.genius.itm.impl.ItmUtils;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeBase;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeVxlan;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.ExternalTunnelList;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.DPNTEPsInfo;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.dpn.teps.info.TunnelEndPoints;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.external.tunnel.list.ExternalTunnel;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.TransportZones;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZone;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.TransportZoneKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.transport.zone.Subnets;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.transport.zone.subnets.DeviceVteps;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rev160406.transport.zones.transport.zone.subnets.Vteps;
  31 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 import java.math.BigInteger;
  36 import java.util.ArrayList;
  37 import java.util.List;
  38
  39 public class ItmExternalTunnelDeleteWorker {
  40     private static final Logger logger = LoggerFactory.getLogger(ItmExternalTunnelDeleteWorker.class ) ;
  41
  42     public static List<ListenableFuture<Void>> deleteTunnels(DataBroker dataBroker, IdManagerService idManagerService, List<DPNTEPsInfo> dpnTepsList,IpAddress extIp, Class<? extends TunnelTypeBase> tunType ) {
  43         logger.trace( " Delete Tunnels towards DC Gateway with Ip  {}", extIp ) ;
  44         List<ListenableFuture<Void>> futures = new ArrayList<>();
  45         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  46
  47         if (dpnTepsList == null || dpnTepsList.size() == 0) {
  48             logger.debug("no vtep to delete");
  49             return null ;
  50         }
  51         for( DPNTEPsInfo teps : dpnTepsList) {
  52             TunnelEndPoints firstEndPt = teps.getTunnelEndPoints().get(0) ;
  53             String interfaceName = firstEndPt.getInterfaceName() ;
  54             String trunkInterfaceName = ItmUtils.getTrunkInterfaceName( idManagerService, interfaceName,
  55                     firstEndPt.getIpAddress().getIpv4Address().getValue(),
  56                     extIp.getIpv4Address().getValue(),
  57                     tunType.getName());
  58             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkInterfaceName);
  59             t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
  60             ItmUtils.itmCache.removeInterface(trunkInterfaceName);
  61
  62             InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
  63                     ExternalTunnelList.class)
  64                     .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(extIp.toString(),
  65                             teps.getDPNID().toString(),
  66                             tunType));
  67             t.delete(LogicalDatastoreType.CONFIGURATION, path);
  68             logger.debug( "Deleting tunnel towards DC gateway, Tunnel interface name {} ",trunkInterfaceName );
  69             ItmUtils.itmCache.removeExternalTunnel(trunkInterfaceName);
  70             // Release the Ids for the trunk interface Name
  71             ItmUtils.releaseIdForTrunkInterfaceName(idManagerService,interfaceName,firstEndPt.getIpAddress().getIpv4Address().getValue(), extIp.getIpv4Address().getValue(),tunType.getName());
  72         }
  73         futures.add(t.submit()) ;
  74         return futures ;
  75     }
  76
  77     public static List<ListenableFuture<Void>> deleteHwVtepsTunnels(DataBroker dataBroker, IdManagerService idManagerService, List<DPNTEPsInfo> delDpnList ,List<HwVtep> cfgdHwVteps) {
  78         List<ListenableFuture<Void>> futures = new ArrayList<>();
  79         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  80
  81         if (delDpnList != null || cfgdHwVteps != null)
  82             tunnelsDeletion(delDpnList, cfgdHwVteps, idManagerService, futures, t, dataBroker);
  83         futures.add(t.submit());
  84         return futures;
  85     }
  86
  87     private static void tunnelsDeletion(List<DPNTEPsInfo> cfgdDpnList, List<HwVtep> cfgdhwVteps, IdManagerService idManagerService, List<ListenableFuture<Void>> futures, WriteTransaction t, DataBroker dataBroker) {
  88         if (cfgdDpnList != null && !cfgdDpnList.isEmpty()) {
  89             for (DPNTEPsInfo dpn : cfgdDpnList) {
  90                 if (dpn.getTunnelEndPoints() != null && !dpn.getTunnelEndPoints().isEmpty())
  91                     for (TunnelEndPoints srcTep : dpn.getTunnelEndPoints()) {
  92                         InstanceIdentifier<TransportZone> tzonePath = InstanceIdentifier.builder(TransportZones.class)
  93                                 .child(TransportZone.class, new TransportZoneKey((srcTep.getTransportZone())))
  94                                 .build();
  95                         Optional<TransportZone> tZoneOptional = ItmUtils.read(LogicalDatastoreType.CONFIGURATION, tzonePath, dataBroker);
  96                         if (tZoneOptional.isPresent()) {
  97                             TransportZone tZone = tZoneOptional.get();
  98                             //do we need to check tunnel type?
  99                             if (tZone.getSubnets() != null && !tZone.getSubnets().isEmpty()) {
 100                                 for (Subnets sub : tZone.getSubnets()) {
 101                                     if (sub.getDeviceVteps() != null && !sub.getDeviceVteps().isEmpty()) {
 102                                         for (DeviceVteps hwVtepDS : sub.getDeviceVteps()) {
 103                                             String cssID = dpn.getDPNID().toString();
 104                                             //CSS-TOR-CSS
 105                                             deleteTrunksCSSTOR(dataBroker, idManagerService, dpn.getDPNID(), srcTep.getInterfaceName(), srcTep.getIpAddress(),
 106                                                     hwVtepDS.getTopologyId(), hwVtepDS.getNodeId(), hwVtepDS.getIpAddress(), tZone.getTunnelType(),
 107                                                     t, futures);
 108
 109                                         }
 110                                     }
 111                                 }
 112                             }
 113                             if (cfgdhwVteps != null && !cfgdhwVteps.isEmpty()) {
 114                                 for (HwVtep hwVtep : cfgdhwVteps) {
 115                                     deleteTrunksCSSTOR(dataBroker, idManagerService, dpn.getDPNID(), srcTep.getInterfaceName(), srcTep.getIpAddress(),
 116                                             hwVtep.getTopo_id(), hwVtep.getNode_id(), hwVtep.getHwIp(),
 117                                             TunnelTypeVxlan.class, t, futures);
 118
 119                                 }
 120                             }
 121                         }
 122                     }
 123             }
 124         }
 125         if (cfgdhwVteps != null && !cfgdhwVteps.isEmpty()) {
 126             for (HwVtep hwTep : cfgdhwVteps) {
 127                 logger.trace("processing hwTep from list {}", hwTep);
 128                 for (HwVtep hwTepRemote : cfgdhwVteps) {
 129                     if (!hwTep.getHwIp().equals(hwTepRemote.getHwIp())) {
 130                         deleteTrunksTORTOR(dataBroker, idManagerService, hwTep.getTopo_id(), hwTep.getNode_id(),
 131                                 hwTep.getHwIp(), hwTepRemote.getTopo_id(), hwTepRemote.getNode_id(),
 132                                 hwTepRemote.getHwIp(), TunnelTypeVxlan.class, t, futures);
 133                     }
 134                 }
 135                 InstanceIdentifier<TransportZone> tzonePath = InstanceIdentifier.builder(TransportZones.class)
 136                         .child(TransportZone.class, new TransportZoneKey((hwTep.getTransportZone()))).build();
 137                 Optional<TransportZone> tZoneOptional = ItmUtils.read(LogicalDatastoreType.CONFIGURATION, tzonePath, dataBroker);
 138                 if (tZoneOptional.isPresent()) {
 139                     TransportZone tZone = tZoneOptional.get();
 140                     //do we need to check tunnel type?
 141                     logger.trace("subnets under tz {} are {}", tZone.getZoneName(), tZone.getSubnets());
 142                     if (tZone.getSubnets() != null && !tZone.getSubnets().isEmpty()) {
 143
 144                         for (Subnets sub : tZone.getSubnets()) {
 145                             if (sub.getDeviceVteps() != null && !sub.getDeviceVteps().isEmpty()) {
 146                                 for (DeviceVteps hwVtepDS : sub.getDeviceVteps()) {
 147                                     logger.trace("hwtepDS exists {}", hwVtepDS);
 148                                     //do i need to check node-id?
 149                                     //for mlag case and non-m-lag case, isnt it enough to just check ipaddress?
 150                                     if (hwVtepDS.getIpAddress().equals(hwTep.getHwIp()))
 151                                         continue;//dont delete tunnels with self
 152                                     //TOR-TOR
 153                                     logger.trace("deleting tor-tor {} and {}", hwTep, hwVtepDS);
 154                                     deleteTrunksTORTOR(dataBroker, idManagerService, hwTep.getTopo_id(), hwTep.getNode_id(),
 155                                             hwTep.getHwIp(), hwVtepDS.getTopologyId(), hwVtepDS.getNodeId(),
 156                                             hwVtepDS.getIpAddress(), tZone.getTunnelType(),
 157                                             t, futures);
 158
 159                                 }
 160                             }
 161                             if (sub.getVteps() != null && !sub.getVteps().isEmpty()) {
 162                                 for (Vteps vtep : sub.getVteps()) {
 163                                     //TOR-CSS
 164                                     logger.trace("deleting tor-css-tor {} and {}", hwTep, vtep);
 165                                     String parentIf = ItmUtils.getInterfaceName(vtep.getDpnId(), vtep.getPortname(), sub.getVlanId());
 166                                     deleteTrunksCSSTOR(dataBroker, idManagerService, vtep.getDpnId(), parentIf, vtep.getIpAddress(),
 167                                             hwTep.getTopo_id(), hwTep.getNode_id(), hwTep.getHwIp(),
 168                                             tZone.getTunnelType(), t, futures);
 169                                 }
 170                             }
 171                         }
 172                     }
 173                 }
 174             }
 175         }
 176     }
 177
 178     private static void deleteTrunksCSSTOR(DataBroker dataBroker, IdManagerService idManagerService, BigInteger dpnid,
 179                                            String interfaceName, IpAddress cssIpAddress, String topologyId, String nodeId, IpAddress hWIpAddress,
 180                                            Class<? extends TunnelTypeBase> tunType, WriteTransaction t,
 181                                            List<ListenableFuture<Void>> futures) {
 182         //CSS-TOR
 183         if (trunkExists(dpnid.toString(), nodeId, tunType, dataBroker)) {
 184             logger.trace("deleting tunnel from {} to {} ", dpnid.toString(), nodeId);
 185             String parentIf = interfaceName;
 186             String fwdTrunkIf = ItmUtils.getTrunkInterfaceName(idManagerService,parentIf,cssIpAddress.getIpv4Address().getValue(),
 187                     hWIpAddress.getIpv4Address().getValue(), tunType.getName());
 188             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(fwdTrunkIf);
 189             t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 190
 191             InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
 192                     ExternalTunnelList.class)
 193                     .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(nodeId, dpnid.toString(), tunType));
 194             t.delete(LogicalDatastoreType.CONFIGURATION, path);
 195         }
 196         else {
 197             logger.trace(" trunk from {} to {} already deleted",dpnid.toString(), nodeId);
 198         }
 199         //TOR-CSS
 200         if (trunkExists( nodeId, dpnid.toString(), tunType, dataBroker)) {
 201             logger.trace("deleting tunnel from {} to {} ",nodeId, dpnid.toString());
 202
 203             String parentIf = ItmUtils.getHwParentIf(topologyId,nodeId);
 204             String revTrunkIf = ItmUtils.getTrunkInterfaceName(idManagerService,parentIf, hWIpAddress.getIpv4Address().getValue(),
 205                     cssIpAddress.getIpv4Address().getValue(), tunType.getName());
 206             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(revTrunkIf);
 207             t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 208
 209             InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
 210                     ExternalTunnelList.class)
 211                     .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(dpnid.toString(),nodeId, tunType));
 212             t.delete(LogicalDatastoreType.CONFIGURATION, path);
 213         }
 214         else {
 215             logger.trace(" trunk from {} to {} already deleted",  nodeId, dpnid.toString());
 216         }
 217     }
 218
 219     private static void deleteTrunksTORTOR(DataBroker dataBroker, IdManagerService idManagerService,
 220                                            String topologyId1, String nodeId1, IpAddress hWIpAddress1, String topologyId2, String nodeId2, IpAddress hWIpAddress2,
 221                                            Class<? extends TunnelTypeBase> tunType, WriteTransaction t, List<ListenableFuture<Void>> futures) {
 222         //TOR1-TOR2
 223         if (trunkExists(nodeId1, nodeId2, tunType, dataBroker)) {
 224             logger.trace("deleting tunnel from {} to {} ", nodeId1, nodeId2);
 225             String parentIf = ItmUtils.getHwParentIf(topologyId1,nodeId1);
 226             String fwdTrunkIf = ItmUtils.getTrunkInterfaceName( idManagerService, parentIf,
 227                     hWIpAddress1.getIpv4Address().getValue(),
 228                     hWIpAddress2.getIpv4Address().getValue(),
 229                     tunType.getName());
 230             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(fwdTrunkIf);
 231             t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 232
 233             InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
 234                     ExternalTunnelList.class)
 235                     .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(nodeId2, nodeId1, tunType));
 236             t.delete(LogicalDatastoreType.CONFIGURATION, path);
 237         }
 238         else {
 239             logger.trace(" trunk from {} to {} already deleted",nodeId1, nodeId2);
 240         }
 241         //TOR2-TOR1
 242         if (trunkExists( nodeId2, nodeId1, tunType, dataBroker)) {
 243             logger.trace("deleting tunnel from {} to {} ",nodeId2, nodeId1);
 244
 245             String parentIf = ItmUtils.getHwParentIf(topologyId2,nodeId2);
 246             String revTrunkIf = ItmUtils.getTrunkInterfaceName( idManagerService,parentIf, hWIpAddress2.getIpv4Address().getValue(),
 247                     hWIpAddress1.getIpv4Address().getValue(), tunType.getName());
 248             InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(revTrunkIf);
 249             t.delete(LogicalDatastoreType.CONFIGURATION, trunkIdentifier);
 250
 251             InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
 252                     ExternalTunnelList.class)
 253                     .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(nodeId1,nodeId2, tunType));
 254             t.delete(LogicalDatastoreType.CONFIGURATION, path);
 255         }
 256         else {
 257             logger.trace(" trunk from {} to {} already deleted",nodeId2, nodeId1);
 258         }
 259     }
 260
 261     private static boolean trunkExists( String srcDpnOrNode,  String dstDpnOrNode,
 262                                         Class<? extends TunnelTypeBase> tunType,DataBroker dataBroker) {
 263         boolean existsFlag = false ;
 264         InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(
 265                 ExternalTunnelList.class)
 266                 .child(ExternalTunnel.class, ItmUtils.getExternalTunnelKey(dstDpnOrNode, srcDpnOrNode, tunType));
 267         Optional<ExternalTunnel> exTunnels = ItmUtils.read(LogicalDatastoreType.CONFIGURATION,path, dataBroker) ;
 268         if( exTunnels.isPresent()) {
 269             existsFlag = true;
 270         }
 271         return existsFlag ;
 272     }
 273 }