git.opendaylight Code Review - netvirt.git/blob

   1 /*
   2  * Copyright (c) 2015, 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.netvirt.neutronvpn;
   9
  10 import static org.opendaylight.netvirt.neutronvpn.NeutronvpnUtils.buildfloatingIpIdToPortMappingIdentifier;
  11
  12 import com.google.common.base.Optional;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
  20 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  23 import org.opendaylight.genius.datastoreutils.DataStoreJobCoordinator;
  24 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  25 import org.opendaylight.genius.mdsalutil.NwConstants;
  26 import org.opendaylight.netvirt.elanmanager.api.IElanService;
  27 import org.opendaylight.netvirt.neutronvpn.api.utils.NeutronConstants;
  28 import org.opendaylight.netvirt.neutronvpn.api.utils.NeutronUtils;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlanBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.InterfaceAcl;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.InterfaceAclBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.interfaces._interface.AllowedAddressPairs;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInterfaces;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterface;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterfaceBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.interfaces.ElanInterfaceKey;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.port.info.FloatingIpIdToPortMappingBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.port.info.FloatingIpIdToPortMappingKey;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.Router;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.networks.rev150712.networks.attributes.networks.Network;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.qos.ext.rev160613.QosPortExtension;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  54 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  55 import org.slf4j.Logger;
  56 import org.slf4j.LoggerFactory;
  57
  58 public class NeutronPortChangeListener extends AsyncDataTreeChangeListenerBase<Port, NeutronPortChangeListener>
  59         implements AutoCloseable {
  60     private static final Logger LOG = LoggerFactory.getLogger(NeutronPortChangeListener.class);
  61     private final DataBroker dataBroker;
  62     private final NeutronvpnManager nvpnManager;
  63     private final NeutronvpnNatManager nvpnNatManager;
  64     private final NotificationPublishService notificationPublishService;
  65     private final NeutronSubnetGwMacResolver gwMacResolver;
  66     private OdlInterfaceRpcService odlInterfaceRpcService;
  67     private final IElanService elanService;
  68
  69     public NeutronPortChangeListener(final DataBroker dataBroker,
  70                                      final NeutronvpnManager neutronvpnManager,
  71                                      final NeutronvpnNatManager neutronvpnNatManager,
  72                                      final NotificationPublishService notiPublishService,
  73                                      final NeutronSubnetGwMacResolver gwMacResolver,
  74                                      final OdlInterfaceRpcService odlInterfaceRpcService,
  75                                      final IElanService elanService) {
  76         super(Port.class, NeutronPortChangeListener.class);
  77         this.dataBroker = dataBroker;
  78         nvpnManager = neutronvpnManager;
  79         nvpnNatManager = neutronvpnNatManager;
  80         notificationPublishService = notiPublishService;
  81         this.gwMacResolver = gwMacResolver;
  82         this.odlInterfaceRpcService = odlInterfaceRpcService;
  83         this.elanService = elanService;
  84     }
  85
  86
  87     public void start() {
  88         LOG.info("{} start", getClass().getSimpleName());
  89         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  90     }
  91
  92     @Override
  93     protected InstanceIdentifier<Port> getWildCardPath() {
  94         return InstanceIdentifier.create(Neutron.class).child(Ports.class).child(Port.class);
  95     }
  96
  97     @Override
  98     protected NeutronPortChangeListener getDataTreeChangeListener() {
  99         return NeutronPortChangeListener.this;
 100     }
 101
 102
 103     @Override
 104     protected void add(InstanceIdentifier<Port> identifier, Port input) {
 105         String portName = input.getUuid().getValue();
 106         LOG.trace("Adding Port : key: {}, value={}", identifier, input);
 107         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, input.getNetworkId());
 108         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 109             //FIXME: This should be removed when support for VLAN and GRE network types is added
 110             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} which is part of "
 111                 + "network {}.", portName, network);
 112             return;
 113         }
 114         NeutronvpnUtils.addToPortCache(input);
 115
 116         /* check if router interface has been created */
 117         if ((input.getDeviceOwner() != null) && (input.getDeviceId() != null)) {
 118             if (input.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 119                 handleRouterInterfaceAdded(input);
 120                 /* nothing else to do here */
 121                 return;
 122             }
 123             if (NeutronConstants.DEVICE_OWNER_GATEWAY_INF.equals(input.getDeviceOwner())) {
 124                 handleRouterGatewayUpdated(input);
 125             } else if (NeutronConstants.DEVICE_OWNER_FLOATING_IP.equals(input.getDeviceOwner())) {
 126
 127                 // populate floating-ip uuid and floating-ip port attributes (uuid, mac and subnet id for the ONLY
 128                 // fixed IP) to be used by NAT, depopulated in NATService once mac is retrieved in the removal path
 129                 addToFloatingIpPortInfo(new Uuid(input.getDeviceId()), input.getUuid(), input.getFixedIps().get(0)
 130                                 .getSubnetId(), input.getMacAddress().getValue());
 131
 132                 elanService.handleKnownL3DmacAddress(input.getMacAddress().getValue(), input.getNetworkId().getValue(),
 133                         NwConstants.ADD_FLOW);
 134             }
 135         }
 136         if (input.getFixedIps() != null && !input.getFixedIps().isEmpty()) {
 137             handleNeutronPortCreated(input);
 138         }
 139     }
 140
 141     @Override
 142     protected void remove(InstanceIdentifier<Port> identifier, Port input) {
 143         LOG.trace("Removing Port : key: {}, value={}", identifier, input);
 144         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, input.getNetworkId());
 145         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 146             //FIXME: This should be removed when support for VLAN and GRE network types is added
 147             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} which is part of "
 148                 + "network {}.", input.getUuid().getValue(), network);
 149             return;
 150         }
 151         NeutronvpnUtils.removeFromPortCache(input);
 152
 153         if ((input.getDeviceOwner() != null) && (input.getDeviceId() != null)) {
 154             if (input.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 155                 handleRouterInterfaceRemoved(input);
 156                 /* nothing else to do here */
 157                 return;
 158             } else if (NeutronConstants.DEVICE_OWNER_GATEWAY_INF.equals(input.getDeviceOwner())
 159                     || NeutronConstants.DEVICE_OWNER_FLOATING_IP.equals(input.getDeviceOwner())) {
 160                 elanService.handleKnownL3DmacAddress(input.getMacAddress().getValue(), input.getNetworkId().getValue(),
 161                         NwConstants.DEL_FLOW);
 162             }
 163         }
 164         if (input.getFixedIps() != null && !input.getFixedIps().isEmpty()) {
 165             handleNeutronPortDeleted(input);
 166         }
 167     }
 168
 169     @Override
 170     // TODO Clean up the exception handling
 171     @SuppressWarnings("checkstyle:IllegalCatch")
 172     protected void update(InstanceIdentifier<Port> identifier, Port original, Port update) {
 173         final String portName = update.getUuid().getValue();
 174         LOG.trace("Updating Port : key: {}, original value={}, update value={}", identifier, original, update);
 175         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, update.getNetworkId());
 176         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 177             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} which is part of "
 178                 + "network {}. Skipping the processing of Port update DCN", portName, network);
 179             return;
 180         }
 181         NeutronvpnUtils.addToPortCache(update);
 182
 183         /* check if router interface has been updated */
 184         if ((update.getDeviceOwner() != null) && (update.getDeviceId() != null)) {
 185             if (update.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 186                 handleRouterInterfaceAdded(update);
 187                 /* nothing else to do here */
 188                 return;
 189             }
 190         }
 191
 192         // check if port security enabled/disabled as part of port update
 193         boolean origSecurityEnabled = NeutronvpnUtils.getPortSecurityEnabled(original);
 194         boolean updatedSecurityEnabled = NeutronvpnUtils.getPortSecurityEnabled(update);
 195
 196         if (origSecurityEnabled || updatedSecurityEnabled) {
 197             InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(portName);
 198             final DataStoreJobCoordinator portDataStoreCoordinator = DataStoreJobCoordinator.getInstance();
 199             portDataStoreCoordinator.enqueueJob("PORT- " + portName, () -> {
 200                 WriteTransaction wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
 201                 try {
 202                     Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType
 203                             .CONFIGURATION, interfaceIdentifier);
 204                     if (optionalInf.isPresent()) {
 205                         InterfaceBuilder interfaceBuilder = new InterfaceBuilder(optionalInf.get());
 206                         if (origSecurityEnabled || updatedSecurityEnabled) {
 207                             InterfaceAcl infAcl = handlePortSecurityUpdated(original, update,
 208                                     origSecurityEnabled, updatedSecurityEnabled, interfaceBuilder).build();
 209                             interfaceBuilder.addAugmentation(InterfaceAcl.class, infAcl);
 210                         }
 211                         LOG.info("Of-port-interface updation for port {}", portName);
 212                         // Update OFPort interface for this neutron port
 213                         wrtConfigTxn.put(LogicalDatastoreType.CONFIGURATION, interfaceIdentifier,
 214                                 interfaceBuilder.build());
 215                     } else {
 216                         LOG.error("Interface {} is not present", portName);
 217                     }
 218                 } catch (Exception e) {
 219                     LOG.error("Failed to update interface {} due to the exception {}", portName, e);
 220                 }
 221                 List<ListenableFuture<Void>> futures = new ArrayList<>();
 222                 futures.add(wrtConfigTxn.submit());
 223                 return futures;
 224             });
 225         }
 226         List<FixedIps> oldIPs = (original.getFixedIps() != null) ? original.getFixedIps() : new ArrayList<>();
 227         List<FixedIps> newIPs = (update.getFixedIps() != null) ? update.getFixedIps() : new ArrayList<>();
 228         if (!oldIPs.equals(newIPs)) {
 229             newIPs.removeIf(oldIPs::remove);
 230             handleNeutronPortUpdated(original, update);
 231         }
 232         if (NeutronConstants.DEVICE_OWNER_GATEWAY_INF.equals(update.getDeviceOwner())) {
 233             handleRouterGatewayUpdated(update);
 234         } else if (NeutronConstants.DEVICE_OWNER_FLOATING_IP.equals(update.getDeviceOwner())) {
 235             elanService.handleKnownL3DmacAddress(update.getMacAddress().getValue(), update.getNetworkId().getValue(),
 236                     NwConstants.ADD_FLOW);
 237         }
 238         // check for QoS updates
 239         QosPortExtension updateQos = update.getAugmentation(QosPortExtension.class);
 240         QosPortExtension originalQos = original.getAugmentation(QosPortExtension.class);
 241         if (originalQos == null && updateQos != null) {
 242             // qos policy add
 243             NeutronvpnUtils.addToQosPortsCache(updateQos.getQosPolicyId(), update);
 244             NeutronQosUtils.handleNeutronPortQosUpdate(dataBroker, odlInterfaceRpcService,
 245                     update, updateQos.getQosPolicyId());
 246         } else if (originalQos != null && updateQos != null
 247                 && !originalQos.getQosPolicyId().equals(updateQos.getQosPolicyId())) {
 248             // qos policy update
 249             NeutronvpnUtils.removeFromQosPortsCache(originalQos.getQosPolicyId(), original);
 250             NeutronvpnUtils.addToQosPortsCache(updateQos.getQosPolicyId(), update);
 251             NeutronQosUtils.handleNeutronPortQosUpdate(dataBroker, odlInterfaceRpcService,
 252                     update, updateQos.getQosPolicyId());
 253         } else if (originalQos != null && updateQos == null) {
 254             // qos policy delete
 255             NeutronQosUtils.handleNeutronPortQosRemove(dataBroker, odlInterfaceRpcService,
 256                     original, originalQos.getQosPolicyId());
 257             NeutronvpnUtils.removeFromQosPortsCache(originalQos.getQosPolicyId(), original);
 258         }
 259     }
 260
 261     private void handleRouterInterfaceAdded(Port routerPort) {
 262         if (routerPort.getDeviceId() != null) {
 263             Uuid routerId = new Uuid(routerPort.getDeviceId());
 264             Uuid infNetworkId = routerPort.getNetworkId();
 265             Uuid existingVpnId = NeutronvpnUtils.getVpnForNetwork(dataBroker, infNetworkId);
 266
 267             elanService.handleKnownL3DmacAddress(routerPort.getMacAddress().getValue(), infNetworkId.getValue(),
 268                     NwConstants.ADD_FLOW);
 269             if (existingVpnId == null) {
 270                 for (FixedIps portIP : routerPort.getFixedIps()) {
 271                     Uuid vpnId = NeutronvpnUtils.getVpnForRouter(dataBroker, routerId, true);
 272                     if (vpnId == null) {
 273                         vpnId = routerId;
 274                     }
 275                     // NOTE:  Please donot change the order of calls to updateSubnetNodeWithFixedIPs
 276                     // and addSubnetToVpn here
 277                     String ipValue = String.valueOf(portIP.getIpAddress().getValue());
 278                     nvpnManager.updateSubnetNodeWithFixedIps(portIP.getSubnetId(), routerId,
 279                             routerPort.getUuid(), ipValue, routerPort.getMacAddress().getValue());
 280                     nvpnManager.addSubnetToVpn(vpnId, portIP.getSubnetId());
 281                     nvpnNatManager.handleSubnetsForExternalRouter(routerId, dataBroker);
 282                     PhysAddress mac = new PhysAddress(routerPort.getMacAddress().getValue());
 283                     LOG.trace("NeutronPortChangeListener Add Subnet Gateway IP {} MAC {} Interface {} VPN {}",
 284                             ipValue, routerPort.getMacAddress(),
 285                             routerPort.getUuid().getValue(), vpnId.getValue());
 286                     // ping responder for router interfaces
 287                     nvpnManager.createVpnInterface(vpnId, routerId, routerPort, null);
 288                 }
 289             } else {
 290                 LOG.error("Neutron network {} corresponding to router interface port {} for neutron router {} already"
 291                     + " associated to VPN {}", infNetworkId.getValue(), routerPort.getUuid().getValue(),
 292                     routerId.getValue(), existingVpnId.getValue());
 293             }
 294         }
 295     }
 296
 297     private void handleRouterInterfaceRemoved(Port routerPort) {
 298         if (routerPort.getDeviceId() != null) {
 299             Uuid routerId = new Uuid(routerPort.getDeviceId());
 300             Uuid infNetworkId = routerPort.getNetworkId();
 301
 302             elanService.handleKnownL3DmacAddress(routerPort.getMacAddress().getValue(), infNetworkId.getValue(),
 303                     NwConstants.DEL_FLOW);
 304             for (FixedIps portIP : routerPort.getFixedIps()) {
 305                 Uuid vpnId = NeutronvpnUtils.getVpnForRouter(dataBroker, routerId, true);
 306                 if (vpnId == null) {
 307                     vpnId = routerId;
 308                 }
 309                 // NOTE:  Please donot change the order of calls to removeSubnetFromVpn and
 310                 // and updateSubnetNodeWithFixedIPs
 311                 nvpnManager.removeSubnetFromVpn(vpnId, portIP.getSubnetId());
 312                 nvpnManager.updateSubnetNodeWithFixedIps(portIP.getSubnetId(), null,
 313                         null, null, null);
 314                 nvpnNatManager.handleSubnetsForExternalRouter(routerId, dataBroker);
 315                 String ipValue = String.valueOf(portIP.getIpAddress().getValue());
 316                 NeutronvpnUtils.removeVpnPortFixedIpToPort(dataBroker, vpnId.getValue(),
 317                         ipValue, null /*writeTransaction*/);
 318                 // ping responder for router interfaces
 319                 nvpnManager.deleteVpnInterface(vpnId, routerId, routerPort, null);
 320             }
 321         }
 322     }
 323
 324     private void handleRouterGatewayUpdated(Port routerGwPort) {
 325         Uuid routerId = new Uuid(routerGwPort.getDeviceId());
 326         Uuid networkId = routerGwPort.getNetworkId();
 327         elanService.handleKnownL3DmacAddress(routerGwPort.getMacAddress().getValue(), networkId.getValue(),
 328                 NwConstants.ADD_FLOW);
 329
 330         Router router = NeutronvpnUtils.getNeutronRouter(dataBroker, routerId);
 331         if (router == null) {
 332             LOG.warn("No router found for router GW port {} router id {}", routerGwPort.getUuid(), routerId.getValue());
 333             return;
 334         }
 335         gwMacResolver.sendArpRequestsToExtGateways(router);
 336     }
 337
 338     private void handleNeutronPortCreated(final Port port) {
 339         final String portName = port.getUuid().getValue();
 340         final Uuid portId = port.getUuid();
 341         final Uuid subnetId = port.getFixedIps().get(0).getSubnetId();
 342         final DataStoreJobCoordinator portDataStoreCoordinator = DataStoreJobCoordinator.getInstance();
 343         portDataStoreCoordinator.enqueueJob("PORT- " + portName, () -> {
 344             WriteTransaction wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
 345             List<ListenableFuture<Void>> futures = new ArrayList<>();
 346
 347             // add direct port to subnetMaps config DS
 348             if (!NeutronUtils.isPortVnicTypeNormal(port)) {
 349                 nvpnManager.updateSubnetmapNodeWithPorts(subnetId, null, portId);
 350                 LOG.info("Port {} is not a NORMAL VNIC Type port; OF Port interfaces are not created", portName);
 351                 futures.add(wrtConfigTxn.submit());
 352                 return futures;
 353             }
 354             LOG.info("Of-port-interface creation for port {}", portName);
 355             // Create of-port interface for this neutron port
 356             String portInterfaceName = createOfPortInterface(port, wrtConfigTxn);
 357             LOG.debug("Creating ELAN Interface for port {}", portName);
 358             createElanInterface(port, portInterfaceName, wrtConfigTxn);
 359
 360             Subnetmap subnetMap = nvpnManager.updateSubnetmapNodeWithPorts(subnetId, portId, null);
 361             Uuid vpnId = (subnetMap != null) ? subnetMap.getVpnId() : null;
 362             Uuid routerId = (subnetMap != null) ? subnetMap.getRouterId() : null;
 363             if (vpnId != null) {
 364                 // create vpn-interface on this neutron port
 365                 LOG.debug("Adding VPN Interface for port {}", portName);
 366                 nvpnManager.createVpnInterface(vpnId, routerId, port, wrtConfigTxn);
 367             }
 368             futures.add(wrtConfigTxn.submit());
 369             return futures;
 370         });
 371     }
 372
 373     private void handleNeutronPortDeleted(final Port port) {
 374         final String portName = port.getUuid().getValue();
 375         final Uuid portId = port.getUuid();
 376         final Uuid subnetId = port.getFixedIps().get(0).getSubnetId();
 377         final DataStoreJobCoordinator portDataStoreCoordinator = DataStoreJobCoordinator.getInstance();
 378         portDataStoreCoordinator.enqueueJob("PORT- " + portName, () -> {
 379             WriteTransaction wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
 380             List<ListenableFuture<Void>> futures = new ArrayList<>();
 381
 382             // remove direct port from subnetMaps config DS
 383             if (!NeutronUtils.isPortVnicTypeNormal(port)) {
 384                 nvpnManager.removePortsFromSubnetmapNode(subnetId, null, portId);
 385                 LOG.info("Port {} is not a NORMAL VNIC Type port; OF Port interfaces are not created", portName);
 386                 futures.add(wrtConfigTxn.submit());
 387                 return futures;
 388             }
 389             Subnetmap subnetMap = nvpnManager.removePortsFromSubnetmapNode(subnetId, portId, null);
 390             Uuid vpnId = (subnetMap != null) ? subnetMap.getVpnId() : null;
 391             Uuid routerId = (subnetMap != null) ? subnetMap.getRouterId() : null;
 392             if (vpnId != null) {
 393                 // remove vpn-interface for this neutron port
 394                 LOG.debug("removing VPN Interface for port {}", portName);
 395                 nvpnManager.deleteVpnInterface(vpnId, routerId, port, wrtConfigTxn);
 396             }
 397             // Remove of-port interface for this neutron port
 398             // ELAN interface is also implicitly deleted as part of this operation
 399             LOG.debug("Of-port-interface removal for port {}", portName);
 400             deleteOfPortInterface(port, wrtConfigTxn);
 401             //dissociate fixedIP from floatingIP if associated
 402             nvpnManager.dissociatefixedIPFromFloatingIP(port.getUuid().getValue());
 403             futures.add(wrtConfigTxn.submit());
 404             return futures;
 405         });
 406     }
 407
 408     private void handleNeutronPortUpdated(final Port portoriginal, final Port portupdate) {
 409         if (portoriginal.getFixedIps() == null || portoriginal.getFixedIps().isEmpty()) {
 410             handleNeutronPortCreated(portupdate);
 411             return;
 412         }
 413
 414         if (portupdate.getFixedIps() == null || portupdate.getFixedIps().isEmpty()) {
 415             LOG.debug("Ignoring portUpdate (fixed_ip removal) for port {} as this case is handled "
 416                       + "during subnet deletion event.", portupdate.getUuid().getValue());
 417             return;
 418         }
 419
 420         final DataStoreJobCoordinator portDataStoreCoordinator = DataStoreJobCoordinator.getInstance();
 421         portDataStoreCoordinator.enqueueJob("PORT- " + portupdate.getUuid().getValue(), () -> {
 422             WriteTransaction wrtConfigTxn = dataBroker.newWriteOnlyTransaction();
 423             Uuid vpnIdNew = null;
 424             final Uuid subnetIdOr = portupdate.getFixedIps().get(0).getSubnetId();
 425             final Uuid subnetIdUp = portupdate.getFixedIps().get(0).getSubnetId();
 426             // check if subnet UUID has changed upon change in fixedIP
 427             final Boolean subnetUpdated = subnetIdUp.equals(subnetIdOr) ? false : true;
 428
 429             if (subnetUpdated) {
 430                 Subnetmap subnetMapOld = nvpnManager.removePortsFromSubnetmapNode(subnetIdOr, portoriginal
 431                         .getUuid(), null);
 432                 Uuid vpnIdOld = (subnetMapOld != null) ? subnetMapOld.getVpnId() : null;
 433                 Subnetmap subnetMapNew = nvpnManager.updateSubnetmapNodeWithPorts(subnetIdUp, portupdate
 434                                 .getUuid(), null);
 435                 vpnIdNew = (subnetMapNew != null) ? subnetMapNew.getVpnId() : null;
 436             }
 437             if (!subnetUpdated) {
 438                 Subnetmap subnetmap = NeutronvpnUtils.getSubnetmap(dataBroker, subnetIdUp);
 439                 vpnIdNew = subnetmap != null ? subnetmap.getVpnId() : null;
 440             }
 441             if (vpnIdNew != null) {
 442                 // remove vpn-interface for this neutron port
 443                 LOG.debug("removing VPN Interface for port {}", portupdate.getUuid().getValue());
 444                 nvpnManager.deleteVpnInterface(vpnIdNew, null, portupdate, wrtConfigTxn);
 445                 // create vpn-interface on this neutron port
 446                 LOG.debug("Adding VPN Interface for port {}", portupdate.getUuid().getValue());
 447                 nvpnManager.createVpnInterface(vpnIdNew, null, portupdate, wrtConfigTxn);
 448             }
 449             List<ListenableFuture<Void>> futures = new ArrayList<>();
 450             futures.add(wrtConfigTxn.submit());
 451             return futures;
 452         });
 453     }
 454
 455     private static InterfaceAclBuilder handlePortSecurityUpdated(Port portOriginal, Port portUpdated, boolean
 456             origSecurityEnabled, boolean updatedSecurityEnabled, InterfaceBuilder interfaceBuilder) {
 457         String interfaceName = portUpdated.getUuid().getValue();
 458         InterfaceAclBuilder interfaceAclBuilder = null;
 459         if (origSecurityEnabled != updatedSecurityEnabled) {
 460             interfaceAclBuilder = new InterfaceAclBuilder();
 461             interfaceAclBuilder.setPortSecurityEnabled(updatedSecurityEnabled);
 462             if (updatedSecurityEnabled) {
 463                 // Handle security group enabled
 464                 NeutronvpnUtils.populateInterfaceAclBuilder(interfaceAclBuilder, portUpdated);
 465             } else {
 466                 // Handle security group disabled
 467                 interfaceAclBuilder.setSecurityGroups(new ArrayList<>());
 468                 interfaceAclBuilder.setAllowedAddressPairs(new ArrayList<>());
 469             }
 470         } else {
 471             if (updatedSecurityEnabled) {
 472                 // handle SG add/delete delta
 473                 InterfaceAcl interfaceAcl = interfaceBuilder.getAugmentation(InterfaceAcl.class);
 474                 interfaceAclBuilder = new InterfaceAclBuilder(interfaceAcl);
 475                 interfaceAclBuilder.setSecurityGroups(
 476                         NeutronvpnUtils.getUpdatedSecurityGroups(interfaceAcl.getSecurityGroups(),
 477                                 portOriginal.getSecurityGroups(), portUpdated.getSecurityGroups()));
 478                 List<AllowedAddressPairs> updatedAddressPairs = NeutronvpnUtils.getUpdatedAllowedAddressPairs(
 479                         interfaceAcl.getAllowedAddressPairs(), portOriginal.getAllowedAddressPairs(),
 480                         portUpdated.getAllowedAddressPairs());
 481                 interfaceAclBuilder.setAllowedAddressPairs(NeutronvpnUtils.getAllowedAddressPairsForFixedIps(
 482                         updatedAddressPairs, portOriginal.getMacAddress(), portOriginal.getFixedIps(),
 483                         portUpdated.getFixedIps()));
 484             }
 485         }
 486         return interfaceAclBuilder;
 487     }
 488
 489     // TODO Clean up the exception handling
 490     @SuppressWarnings("checkstyle:IllegalCatch")
 491     private String createOfPortInterface(Port port, WriteTransaction wrtConfigTxn) {
 492         Interface inf = createInterface(port);
 493         String infName = inf.getName();
 494
 495         LOG.debug("Creating OFPort Interface {}", infName);
 496         InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(infName);
 497         try {
 498             Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 499                     interfaceIdentifier);
 500             if (!optionalInf.isPresent()) {
 501                 wrtConfigTxn.put(LogicalDatastoreType.CONFIGURATION, interfaceIdentifier, inf);
 502             } else {
 503                 LOG.warn("Interface {} is already present", infName);
 504             }
 505         } catch (Exception e) {
 506             LOG.error("failed to create interface {} due to the exception {} ", infName, e.getMessage());
 507         }
 508         return infName;
 509     }
 510
 511     private Interface createInterface(Port port) {
 512         String interfaceName = port.getUuid().getValue();
 513         IfL2vlan.L2vlanMode l2VlanMode = IfL2vlan.L2vlanMode.Trunk;
 514         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 515         IfL2vlanBuilder ifL2vlanBuilder = new IfL2vlanBuilder();
 516         ifL2vlanBuilder.setL2vlanMode(l2VlanMode);
 517
 518         interfaceBuilder.setEnabled(true).setName(interfaceName).setType(L2vlan.class)
 519                 .addAugmentation(IfL2vlan.class, ifL2vlanBuilder.build());
 520
 521         if (NeutronvpnUtils.getPortSecurityEnabled(port)) {
 522             InterfaceAclBuilder interfaceAclBuilder = new InterfaceAclBuilder();
 523             interfaceAclBuilder.setPortSecurityEnabled(true);
 524             NeutronvpnUtils.populateInterfaceAclBuilder(interfaceAclBuilder, port);
 525             interfaceBuilder.addAugmentation(InterfaceAcl.class, interfaceAclBuilder.build());
 526         }
 527         return interfaceBuilder.build();
 528     }
 529
 530     // TODO Clean up the exception handling
 531     @SuppressWarnings("checkstyle:IllegalCatch")
 532     private void deleteOfPortInterface(Port port, WriteTransaction wrtConfigTxn) {
 533         String name = port.getUuid().getValue();
 534         LOG.debug("Removing OFPort Interface {}", name);
 535         InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(name);
 536         try {
 537             Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 538                     interfaceIdentifier);
 539             if (optionalInf.isPresent()) {
 540                 wrtConfigTxn.delete(LogicalDatastoreType.CONFIGURATION, interfaceIdentifier);
 541             } else {
 542                 LOG.error("Interface {} is not present", name);
 543             }
 544         } catch (Exception e) {
 545             LOG.error("Failed to delete interface {} due to the exception {}", name, e.getMessage());
 546         }
 547     }
 548
 549     private void createElanInterface(Port port, String name, WriteTransaction wrtConfigTxn) {
 550         String elanInstanceName = port.getNetworkId().getValue();
 551         List<PhysAddress> physAddresses = new ArrayList<>();
 552         physAddresses.add(new PhysAddress(port.getMacAddress().getValue()));
 553
 554         InstanceIdentifier<ElanInterface> id = InstanceIdentifier.builder(ElanInterfaces.class).child(ElanInterface
 555                 .class, new ElanInterfaceKey(name)).build();
 556         ElanInterface elanInterface = new ElanInterfaceBuilder().setElanInstanceName(elanInstanceName)
 557                 .setName(name).setStaticMacEntries(physAddresses).setKey(new ElanInterfaceKey(name)).build();
 558         wrtConfigTxn.put(LogicalDatastoreType.CONFIGURATION, id, elanInterface);
 559         LOG.debug("Creating new ELan Interface {}", elanInterface);
 560     }
 561
 562     // TODO Clean up the exception handling
 563     @SuppressWarnings("checkstyle:IllegalCatch")
 564     private void addToFloatingIpPortInfo(Uuid floatingIpId, Uuid floatingIpPortId, Uuid floatingIpPortSubnetId, String
 565                                          floatingIpPortMacAddress) {
 566         InstanceIdentifier id = buildfloatingIpIdToPortMappingIdentifier(floatingIpId);
 567         try {
 568             FloatingIpIdToPortMappingBuilder floatingipIdToPortMacMappingBuilder = new
 569                 FloatingIpIdToPortMappingBuilder().setKey(new FloatingIpIdToPortMappingKey(floatingIpId))
 570                 .setFloatingIpId(floatingIpId).setFloatingIpPortId(floatingIpPortId)
 571                 .setFloatingIpPortSubnetId(floatingIpPortSubnetId)
 572                 .setFloatingIpPortMacAddress(floatingIpPortMacAddress);
 573             LOG.debug("Creating floating IP UUID {} to Floating IP neutron port {} mapping in Floating IP"
 574                 + " Port Info Config DS", floatingIpId.getValue(), floatingIpPortId.getValue());
 575             MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, id,
 576                 floatingipIdToPortMacMappingBuilder.build());
 577         } catch (Exception e) {
 578             LOG.error("Creating floating IP UUID {} to Floating IP neutron port {} mapping in Floating IP"
 579                 + " Port Info Config DS failed with exception {}",
 580                 floatingIpId.getValue(), floatingIpPortId.getValue(), e);
 581         }
 582     }
 583 }