vpnservice/neutronvpn/neutronvpn-impl/src/main/java/org/opendaylight/netvirt/neutronvpn/NeutronPortChangeListener.java

   1 /*
   2  * Copyright (c) 2015 - 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.neutronvpn;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.collect.Lists;
  12 import java.util.ArrayList;
  13 import java.util.Iterator;
  14 import java.util.List;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
  17 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.genius.mdsalutil.AbstractDataChangeListener;
  21 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  22 import org.opendaylight.netvirt.neutronvpn.api.utils.NeutronConstants;
  23 import org.opendaylight.netvirt.neutronvpn.api.utils.NeutronUtils;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.L2vlan;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlan;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfL2vlanBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefs;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefsBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.lockmanager.rev160413.LockManagerService;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.InterfaceAcl;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.InterfaceAclBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.interfaces._interface.AllowedAddressPairs;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInstances;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.ElanInterfaces;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstance;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.elan.rev150602.elan.instances.ElanInstanceKey;
  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.l3vpn.rev130911.VpnInstanceToVpnId;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.to.vpn.id.VpnInstance;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.to.vpn.id.VpnInstanceKey;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.PortAddedToSubnetBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.PortRemovedFromSubnetBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.subnetmaps.Subnetmap;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.l3.rev150712.routers.attributes.routers.Router;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.networks.rev150712.networks.attributes.networks.Network;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  56 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  57 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  58 import org.slf4j.Logger;
  59 import org.slf4j.LoggerFactory;
  60
  61 public class NeutronPortChangeListener extends AbstractDataChangeListener<Port> implements AutoCloseable {
  62     private static final Logger LOG = LoggerFactory.getLogger(NeutronPortChangeListener.class);
  63     private ListenerRegistration<DataChangeListener> listenerRegistration;
  64     private final DataBroker dataBroker;
  65     private final NeutronvpnManager nvpnManager;
  66     private final NeutronvpnNatManager nvpnNatManager;
  67     private final LockManagerService lockManager;
  68     private final NotificationPublishService notificationPublishService;
  69     private final NeutronSubnetGwMacResolver gwMacResolver;
  70
  71     public NeutronPortChangeListener(final DataBroker dataBroker,
  72                                      final NeutronvpnManager nVpnMgr, final NeutronvpnNatManager nVpnNatMgr,
  73                                      final NotificationPublishService notiPublishService,
  74                                      final LockManagerService lockManager, NeutronSubnetGwMacResolver gwMacResolver) {
  75         super(Port.class);
  76         this.dataBroker = dataBroker;
  77         nvpnManager = nVpnMgr;
  78         nvpnNatManager = nVpnNatMgr;
  79         notificationPublishService = notiPublishService;
  80         this.lockManager = lockManager;
  81         this.gwMacResolver = gwMacResolver;
  82     }
  83
  84     public void start() {
  85         LOG.info("{} start", getClass().getSimpleName());
  86         listenerRegistration = dataBroker.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
  87                 getWildCardPath(), this, DataChangeScope.SUBTREE);
  88     }
  89
  90     private InstanceIdentifier<Port> getWildCardPath() {
  91         return InstanceIdentifier.create(Neutron.class).child(Ports.class).child(Port.class);
  92     }
  93
  94     @Override
  95     public void close() throws Exception {
  96         if (listenerRegistration != null) {
  97             listenerRegistration.close();
  98             listenerRegistration = null;
  99         }
 100         LOG.info("{} close", getClass().getSimpleName());
 101     }
 102
 103     @Override
 104     protected void add(InstanceIdentifier<Port> identifier, Port input) {
 105         if (LOG.isTraceEnabled()) {
 106             LOG.trace("Adding Port : key: " + identifier + ", value=" + input);
 107         }
 108         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, input.getNetworkId());
 109         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 110             //FIXME: This should be removed when support for VLAN and GRE network types is added
 111             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} "
 112                     + "which is part of network {}.", input.getName(), network);
 113             return;
 114         }
 115         NeutronvpnUtils.addToPortCache(input);
 116
 117         /* check if router interface has been created */
 118         if ((input.getDeviceOwner() != null) && (input.getDeviceId() != null)) {
 119             if (input.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 120                 handleRouterInterfaceAdded(input);
 121                 /* nothing else to do here */
 122                 return;
 123             }
 124             if (NeutronConstants.DEVICE_OWNER_GATEWAY_INF.equals(input.getDeviceOwner())) {
 125                 handleRouterGatewayUpdated(input);
 126             }
 127         }
 128         if (input.getFixedIps() != null && !input.getFixedIps().isEmpty()) {
 129             handleNeutronPortCreated(input);
 130         }
 131     }
 132
 133     @Override
 134     protected void remove(InstanceIdentifier<Port> identifier, Port input) {
 135         if (LOG.isTraceEnabled()) {
 136             LOG.trace("Removing Port : key: " + identifier + ", value=" + input);
 137         }
 138         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, input.getNetworkId());
 139         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 140             //FIXME: This should be removed when support for VLAN and GRE network types is added
 141             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} which is part of " +
 142                     "network {}.", input.getName(), network);
 143             return;
 144         }
 145         NeutronvpnUtils.removeFromPortCache(input);
 146
 147         if ((input.getDeviceOwner() != null) && (input.getDeviceId() != null)) {
 148             if (input.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 149                 handleRouterInterfaceRemoved(input);
 150                 /* nothing else to do here */
 151                 return;
 152             }
 153         }
 154         if (input.getFixedIps() != null && !input.getFixedIps().isEmpty()) {
 155             handleNeutronPortDeleted(input);
 156         }
 157     }
 158
 159     @Override
 160     protected void update(InstanceIdentifier<Port> identifier, Port original, Port update) {
 161         if (LOG.isTraceEnabled()) {
 162             LOG.trace("Updating Port : key: " + identifier + ", original value=" + original + ", update value=" +
 163                     update);
 164         }
 165         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, update.getNetworkId());
 166         if (network == null || !NeutronvpnUtils.isNetworkTypeSupported(network)) {
 167             LOG.error("neutron vpn doesn't support vlan/gre network provider type for the port {} which is part of network {}."
 168                     + " Skipping the processing of Port update DCN", update.getName(), network);
 169             return;
 170         }
 171         List<FixedIps> oldIPs = (original.getFixedIps() != null) ? original.getFixedIps() : new ArrayList<>();
 172         List<FixedIps> newIPs = (update.getFixedIps() != null) ? update.getFixedIps() : new ArrayList<>();
 173
 174         /* check if VIF type updated as part of port binding */
 175         if(NeutronvpnUtils.isPortVifTypeUpdated(original, update)) {
 176             updateOfPortInterface(original, update);
 177         }
 178         NeutronvpnUtils.addToPortCache(update);
 179
 180         /* check if router interface has been updated */
 181         if ((update.getDeviceOwner() != null) && (update.getDeviceId() != null)) {
 182             if (update.getDeviceOwner().equals(NeutronConstants.DEVICE_OWNER_ROUTER_INF)) {
 183                 handleRouterInterfaceAdded(update);
 184                 /* nothing else to do here */
 185                 return;
 186             }
 187             if (NeutronConstants.DEVICE_OWNER_GATEWAY_INF.equals(update.getDeviceOwner())) {
 188                 handleRouterGatewayUpdated(update);
 189             }
 190         }
 191
 192         handlePortSecurityUpdated(original, update);
 193
 194         if (!oldIPs.equals(newIPs)) {
 195             Iterator<FixedIps> iterator = newIPs.iterator();
 196             while (iterator.hasNext()) {
 197                 FixedIps ip = iterator.next();
 198                 if (oldIPs.remove(ip)) {
 199                     iterator.remove();
 200                 }
 201             }
 202             handleNeutronPortUpdated(original, update);
 203         }
 204     }
 205
 206     private void handleRouterInterfaceAdded(Port routerPort) {
 207         if (routerPort.getDeviceId() != null) {
 208             Uuid routerId = new Uuid(routerPort.getDeviceId());
 209             Uuid infNetworkId = routerPort.getNetworkId();
 210             Uuid existingVpnId = NeutronvpnUtils.getVpnForNetwork(dataBroker, infNetworkId);
 211             if (existingVpnId == null) {
 212                 for (FixedIps portIP : routerPort.getFixedIps()) {
 213                     if (portIP.getIpAddress().getIpv4Address() != null) {
 214                         Uuid vpnId = NeutronvpnUtils.getVpnForRouter(dataBroker, routerId, true);
 215                         if (vpnId == null) {
 216                             vpnId = routerId;
 217                         }
 218                         nvpnManager.addSubnetToVpn(vpnId, portIP.getSubnetId());
 219                         String ipValue = portIP.getIpAddress().getIpv4Address().getValue();
 220                         nvpnManager.updateSubnetNodeWithFixedIps(portIP.getSubnetId(), routerId,
 221                                 routerPort.getUuid(), ipValue, routerPort.getMacAddress().getValue());
 222                         nvpnNatManager.handleSubnetsForExternalRouter(routerId, dataBroker);
 223                         PhysAddress mac = new PhysAddress(routerPort.getMacAddress().getValue());
 224                         LOG.trace("NeutronPortChangeListener Add Subnet Gateway IP {} MAC {} Interface {} VPN {}",
 225                                 portIP.getIpAddress().getIpv4Address(),routerPort.getMacAddress(),
 226                                 routerPort.getUuid().getValue(), vpnId.getValue());
 227                         NeutronvpnUtils.createVpnPortFixedIpToPort(dataBroker, vpnId.getValue(), ipValue, routerPort
 228                                 .getUuid().getValue(), routerPort.getMacAddress().getValue(), true, true, false);
 229                     } else {
 230                         LOG.error("No IPv4 address assigned to port {)", routerPort.getUuid().getValue());
 231                     }
 232                 }
 233             } else {
 234                 LOG.error("Neutron network {} corresponding to router interface port {} for neutron router {} already" +
 235                         " associated to VPN {}", infNetworkId.getValue(), routerPort.getUuid().getValue(), routerId
 236                         .getValue(), existingVpnId.getValue());
 237             }
 238         }
 239     }
 240
 241     private void handleRouterInterfaceRemoved(Port routerPort) {
 242         if (routerPort.getDeviceId() != null) {
 243             Uuid routerId = new Uuid(routerPort.getDeviceId());
 244             for (FixedIps portIP : routerPort.getFixedIps()) {
 245                 if (portIP.getIpAddress().getIpv4Address() != null) {
 246                     Uuid vpnId = NeutronvpnUtils.getVpnForRouter(dataBroker, routerId, true);
 247                     if(vpnId == null) {
 248                         vpnId = routerId;
 249                     }
 250                     nvpnManager.removeSubnetFromVpn(vpnId, portIP.getSubnetId());
 251                     nvpnManager.updateSubnetNodeWithFixedIps(portIP.getSubnetId(), null,
 252                             null, null, null);
 253                     nvpnNatManager.handleSubnetsForExternalRouter(routerId, dataBroker);
 254                     String ipValue = portIP.getIpAddress().getIpv4Address().getValue();
 255                     NeutronvpnUtils.removeVpnPortFixedIpToPort(dataBroker, vpnId.getValue(), ipValue);
 256                 } else {
 257                     LOG.error("No IPv4 address assigned to port {)", routerPort.getUuid().getValue());
 258                 }
 259             }
 260         }
 261     }
 262
 263     private void handleRouterGatewayUpdated(Port routerGwPort) {
 264         Uuid routerId = new Uuid(routerGwPort.getDeviceId());
 265         Router router = NeutronvpnUtils.getNeutronRouter(dataBroker, routerId);
 266         if (router == null) {
 267             LOG.warn("No router found for router GW port {} router id {}", routerGwPort.getUuid(), routerId.getValue());
 268             return;
 269         }
 270
 271         gwMacResolver.sendArpRequestsToExtGateways(router);
 272     }
 273
 274     private Long getVpnIdFromUuid(Uuid vpnId) {
 275         long vpn = 1;
 276         InstanceIdentifier<VpnInstance> id = InstanceIdentifier.builder(VpnInstanceToVpnId.class).
 277                 child(VpnInstance.class, new VpnInstanceKey(vpnId.getValue())).build();
 278         try {
 279             Optional<VpnInstance> optional = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 280                     id);
 281             if (optional.isPresent()) {
 282                 vpn = optional.get().getVpnId();
 283             }
 284         } catch (Exception e) {
 285             LOG.error("Failed to retrieve vpn instance for the Subnet .", e.getMessage());
 286         }
 287         return vpn;
 288     }
 289
 290     private void handleNeutronPortCreated(Port port) {
 291         if (!NeutronUtils.isPortVnicTypeNormal(port)) {
 292             nvpnManager.updateSubnetmapNodeWithPorts(port.getFixedIps().get(0).getSubnetId(), null, port.getUuid());
 293             LOG.info("Port {} is not a NORMAL VNIC Type port; OF Port interfaces are not created",
 294                     port.getUuid().getValue());
 295             return;
 296         }
 297         LOG.info("Of-port-interface creation");
 298         // Create of-port interface for this neutron port
 299         String portInterfaceName = createOfPortInterface(port);
 300         LOG.debug("Creating ELAN Interface");
 301         createElanInterface(port, portInterfaceName);
 302         LOG.debug("Add port to subnet");
 303         // add port to local Subnets DS
 304         Uuid vpnId = addPortToSubnets(port);
 305
 306         if (vpnId != null) {
 307             // create vpn-interface on this neutron port
 308             LOG.debug("Adding VPN Interface");
 309             nvpnManager.createVpnInterface(vpnId, port);
 310             Uuid routerId = NeutronvpnUtils.getVpnMap(dataBroker, vpnId).getRouterId();
 311             if(routerId != null) {
 312                 nvpnManager.addToNeutronRouterInterfacesMap(routerId, port.getUuid().getValue());
 313             }
 314         }
 315     }
 316
 317     private void handleNeutronPortDeleted(Port port) {
 318         if (!NeutronUtils.isPortVnicTypeNormal(port)) {
 319             nvpnManager.removePortsFromSubnetmapNode(port.getFixedIps().get(0).getSubnetId(), null, port.getUuid());
 320             LOG.info("Port {} is not a NORMAL VNIC Type port; OF Port interfaces are not created",
 321                     port.getUuid().getValue());
 322             return;
 323         }
 324         //dissociate fixedIP from floatingIP if associated
 325         nvpnManager.dissociatefixedIPFromFloatingIP(port.getUuid().getValue());
 326         LOG.debug("Remove port from subnet");
 327         // remove port from local Subnets DS
 328         Uuid vpnId = removePortFromSubnets(port);
 329
 330         if (vpnId != null) {
 331             // remove vpn-interface for this neutron port
 332             LOG.debug("removing VPN Interface");
 333             nvpnManager.deleteVpnInterface(vpnId, port);
 334         }
 335
 336         // Remove of-port interface for this neutron port
 337         // ELAN interface is also implicitly deleted as part of this operation
 338         LOG.debug("Of-port-interface removal");
 339         deleteOfPortInterface(port);
 340         if (vpnId != null) {
 341             Uuid routerId = NeutronvpnUtils.getVpnMap(dataBroker, vpnId).getRouterId();
 342             if (routerId != null) {
 343                 nvpnManager.removeFromNeutronRouterInterfacesMap(routerId, port.getUuid().getValue());
 344             }
 345         }
 346     }
 347
 348     private void handleNeutronPortUpdated(Port portoriginal, Port portupdate) {
 349         if (portoriginal.getFixedIps() == null || portoriginal.getFixedIps().isEmpty()) {
 350             handleNeutronPortCreated(portupdate);
 351             return;
 352         }
 353         LOG.debug("Add port to subnet");
 354         // add port FixedIP to local Subnets DS
 355         Uuid vpnIdup = addPortToSubnets(portupdate);
 356
 357         if (vpnIdup != null) {
 358             nvpnManager.createVpnInterface(vpnIdup, portupdate);
 359             Uuid routerId = NeutronvpnUtils.getVpnMap(dataBroker, vpnIdup).getRouterId();
 360             if(routerId != null) {
 361                 nvpnManager.addToNeutronRouterInterfacesMap(routerId, portupdate.getUuid().getValue());
 362             }
 363         }
 364
 365         // remove port FixedIP from local Subnets DS
 366         Uuid vpnIdor = removePortFromSubnets(portoriginal);
 367
 368         if (vpnIdor != null) {
 369             nvpnManager.deleteVpnInterface(vpnIdor, portoriginal);
 370             Uuid routerId = NeutronvpnUtils.getVpnMap(dataBroker, vpnIdor).getRouterId();
 371             if(routerId != null) {
 372                 nvpnManager.removeFromNeutronRouterInterfacesMap(routerId, portoriginal.getUuid().getValue());
 373             }
 374         }
 375     }
 376
 377     private void handlePortSecurityUpdated(Port portOriginal, Port portUpdated) {
 378         Boolean origSecurityEnabled = NeutronvpnUtils.getPortSecurityEnabled(portOriginal);
 379         Boolean updatedSecurityEnabled = NeutronvpnUtils.getPortSecurityEnabled(portUpdated);
 380         String interfaceName = portUpdated.getUuid().getValue();
 381         Interface portInterface = NeutronvpnUtils.getOfPortInterface(dataBroker, portUpdated);
 382         if (portInterface != null) {
 383             InterfaceAclBuilder interfaceAclBuilder = null;
 384             if (origSecurityEnabled != updatedSecurityEnabled) {
 385                 interfaceAclBuilder = new InterfaceAclBuilder();
 386                 interfaceAclBuilder.setPortSecurityEnabled(updatedSecurityEnabled);
 387                 if (updatedSecurityEnabled) {
 388                     // Handle security group enabled
 389                     NeutronvpnUtils.populateInterfaceAclBuilder(interfaceAclBuilder, portUpdated);
 390                 } else {
 391                     // Handle security group disabled
 392                     interfaceAclBuilder.setSecurityGroups(Lists.newArrayList());
 393                     interfaceAclBuilder.setAllowedAddressPairs(Lists.newArrayList());
 394                 }
 395             } else {
 396                 if (updatedSecurityEnabled) {
 397                     // handle SG add/delete delta
 398                     InterfaceAcl interfaceAcl = portInterface.getAugmentation(InterfaceAcl.class);
 399                     interfaceAclBuilder = new InterfaceAclBuilder(interfaceAcl);
 400                     interfaceAclBuilder.setSecurityGroups(
 401                             NeutronvpnUtils.getUpdatedSecurityGroups(interfaceAcl.getSecurityGroups(),
 402                                     portOriginal.getSecurityGroups(), portUpdated.getSecurityGroups()));
 403                     List<AllowedAddressPairs> updatedAddressPairs = NeutronvpnUtils.getUpdatedAllowedAddressPairs(
 404                             interfaceAcl.getAllowedAddressPairs(), portOriginal.getAllowedAddressPairs(),
 405                             portUpdated.getAllowedAddressPairs());
 406                     interfaceAclBuilder.setAllowedAddressPairs(NeutronvpnUtils.getAllowedAddressPairsForFixedIps(
 407                             updatedAddressPairs, portOriginal.getMacAddress(), portOriginal.getFixedIps(),
 408                             portUpdated.getFixedIps()));
 409                 }
 410             }
 411
 412             if (interfaceAclBuilder != null) {
 413                 InterfaceBuilder builder = new InterfaceBuilder(portInterface).addAugmentation(InterfaceAcl.class,
 414                         interfaceAclBuilder.build());
 415                 InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(interfaceName);
 416                 MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, interfaceIdentifier, builder.build());
 417             }
 418         } else {
 419             LOG.error("Interface {} is not present", interfaceName);
 420         }
 421     }
 422
 423     private String createOfPortInterface(Port port) {
 424         Interface inf = createInterface(port);
 425         String infName = inf.getName();
 426
 427         LOG.debug("Creating OFPort Interface {}", infName);
 428         InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(infName);
 429         try {
 430             Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 431                     interfaceIdentifier);
 432             if (!optionalInf.isPresent()) {
 433                 MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, interfaceIdentifier, inf);
 434             } else {
 435                 LOG.error("Interface {} is already present", infName);
 436             }
 437         } catch (Exception e) {
 438             LOG.error("failed to create interface {} due to the exception {} ", infName, e.getMessage());
 439         }
 440
 441         return infName;
 442     }
 443
 444     private Interface createInterface(Port port) {
 445         String parentRefName = NeutronvpnUtils.getVifPortName(port);
 446         String interfaceName = port.getUuid().getValue();
 447         IfL2vlan.L2vlanMode l2VlanMode = IfL2vlan.L2vlanMode.Trunk;
 448         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 449         IfL2vlanBuilder ifL2vlanBuilder = new IfL2vlanBuilder();
 450
 451         Network network = NeutronvpnUtils.getNeutronNetwork(dataBroker, port.getNetworkId());
 452         ifL2vlanBuilder.setL2vlanMode(l2VlanMode);
 453
 454         if(parentRefName != null) {
 455             ParentRefsBuilder parentRefsBuilder = new ParentRefsBuilder().setParentInterface(parentRefName);
 456             interfaceBuilder.addAugmentation(ParentRefs.class, parentRefsBuilder.build());
 457         }
 458
 459         interfaceBuilder.setEnabled(true).setName(interfaceName).setType(L2vlan.class)
 460                 .addAugmentation(IfL2vlan.class, ifL2vlanBuilder.build());
 461
 462         if (NeutronvpnUtils.isPortSecurityEnabled(port)) {
 463             InterfaceAclBuilder interfaceAclBuilder = new InterfaceAclBuilder();
 464             interfaceAclBuilder.setPortSecurityEnabled(true);
 465             NeutronvpnUtils.populateInterfaceAclBuilder(interfaceAclBuilder, port);
 466             interfaceBuilder.addAugmentation(InterfaceAcl.class, interfaceAclBuilder.build());
 467         }
 468         return interfaceBuilder.build();
 469     }
 470
 471     private void deleteOfPortInterface(Port port) {
 472         String name = port.getUuid().getValue();
 473         LOG.debug("Removing OFPort Interface {}", name);
 474         InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(name);
 475         try {
 476             Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 477                     interfaceIdentifier);
 478             if (optionalInf.isPresent()) {
 479                 MDSALUtil.syncDelete(dataBroker, LogicalDatastoreType.CONFIGURATION, interfaceIdentifier);
 480             } else {
 481                 LOG.error("Interface {} is not present", name);
 482             }
 483         } catch (Exception e) {
 484             LOG.error("Failed to delete interface {} due to the exception {}", name, e.getMessage());
 485         }
 486     }
 487
 488     private Interface updateInterface(Port original, Port update) {
 489         String parentRefName = NeutronvpnUtils.getVifPortName(update);
 490         String interfaceName = original.getUuid().getValue();
 491         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 492
 493         if(parentRefName != null) {
 494             ParentRefsBuilder parentRefsBuilder = new ParentRefsBuilder().setParentInterface(parentRefName);
 495             interfaceBuilder.addAugmentation(ParentRefs.class, parentRefsBuilder.build());
 496         }
 497
 498         interfaceBuilder.setName(interfaceName);
 499         return interfaceBuilder.build();
 500     }
 501
 502     private String updateOfPortInterface(Port original, Port updated) {
 503         Interface inf = updateInterface(original, updated);
 504         String infName = inf.getName();
 505
 506         LOG.debug("Updating OFPort Interface {}", infName);
 507         InstanceIdentifier interfaceIdentifier = NeutronvpnUtils.buildVlanInterfaceIdentifier(infName);
 508         try {
 509             Optional<Interface> optionalInf = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 510                     interfaceIdentifier);
 511             if (optionalInf.isPresent()) {
 512                 MDSALUtil.syncUpdate(dataBroker, LogicalDatastoreType.CONFIGURATION, interfaceIdentifier, inf);
 513             } else {
 514                 LOG.error("Interface {} doesn't exist", infName);
 515             }
 516         } catch (Exception e) {
 517             LOG.error("failed to update interface {} due to the exception {} ", infName, e.getMessage());
 518         }
 519
 520         return infName;
 521     }
 522
 523     private void createElanInterface(Port port, String name) {
 524         String elanInstanceName = port.getNetworkId().getValue();
 525         List<PhysAddress> physAddresses = new ArrayList<>();
 526         physAddresses.add(new PhysAddress(port.getMacAddress().getValue()));
 527
 528         InstanceIdentifier<ElanInterface> id = InstanceIdentifier.builder(ElanInterfaces.class).child(ElanInterface
 529                 .class, new ElanInterfaceKey(name)).build();
 530         ElanInterface elanInterface = new ElanInterfaceBuilder().setElanInstanceName(elanInstanceName)
 531                 .setName(name).setStaticMacEntries(physAddresses).setKey(new ElanInterfaceKey(name)).build();
 532         MDSALUtil.syncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, id, elanInterface);
 533         LOG.debug("Creating new ELan Interface {}", elanInterface);
 534     }
 535
 536     // adds port to subnet list and creates vpnInterface
 537     private Uuid addPortToSubnets(Port port) {
 538         Uuid subnetId = null;
 539         Uuid vpnId = null;
 540         String infName = port.getUuid().getValue();
 541         Subnetmap subnetmap = null;
 542         boolean isLockAcquired = false;
 543         String lockName = port.getUuid().getValue();
 544         String elanInstanceName = port.getNetworkId().getValue();
 545         InstanceIdentifier<ElanInstance> elanIdentifierId = InstanceIdentifier.builder(ElanInstances.class).child
 546                 (ElanInstance.class, new ElanInstanceKey(elanInstanceName)).build();
 547         Optional<ElanInstance> elanInstance = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 548                 elanIdentifierId);
 549         long elanTag = elanInstance.get().getElanTag();
 550
 551         // find the subnet to which this port is associated
 552         FixedIps ip = port.getFixedIps().get(0);
 553         subnetId = ip.getSubnetId();
 554         subnetmap = nvpnManager.updateSubnetmapNodeWithPorts(subnetId, port.getUuid(), null);
 555         if (subnetmap != null) {
 556             vpnId = subnetmap.getVpnId();
 557         }
 558         if (vpnId != null) {
 559             try {
 560                 isLockAcquired = NeutronvpnUtils.lock(lockManager, lockName);
 561                 checkAndPublishPortAddNotification(subnetmap.getSubnetIp(), subnetId, port.getUuid(), elanTag);
 562                 LOG.debug("Port added to subnet notification sent");
 563             } catch (Exception e) {
 564                 LOG.error("Port added to subnet notification failed", e);
 565             } finally {
 566                 if (isLockAcquired) {
 567                     NeutronvpnUtils.unlock(lockManager, lockName);
 568                 }
 569             }
 570         }
 571         return vpnId;
 572     }
 573
 574     private Uuid removePortFromSubnets(Port port) {
 575         Uuid subnetId = null;
 576         Uuid vpnId = null;
 577         Subnetmap subnetmap = null;
 578         boolean isLockAcquired = false;
 579         String lockName = port.getUuid().getValue();
 580         String elanInstanceName = port.getNetworkId().getValue();
 581         InstanceIdentifier<ElanInstance> elanIdentifierId = InstanceIdentifier.builder(ElanInstances.class).child
 582                 (ElanInstance.class, new ElanInstanceKey(elanInstanceName)).build();
 583         Optional<ElanInstance> elanInstance = NeutronvpnUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 584                 elanIdentifierId);
 585         long elanTag = elanInstance.get().getElanTag();
 586
 587         // find the subnet to which this port is associated
 588         FixedIps ip = port.getFixedIps().get(0);
 589         subnetId = ip.getSubnetId();
 590         subnetmap = nvpnManager.removePortsFromSubnetmapNode(subnetId, port.getUuid(), null);
 591         if (subnetmap != null) {
 592             vpnId = subnetmap.getVpnId();
 593         }
 594         if (vpnId != null) {
 595             try {
 596                 isLockAcquired = NeutronvpnUtils.lock(lockManager, lockName);
 597                 checkAndPublishPortRemoveNotification(subnetmap.getSubnetIp(), subnetId, port.getUuid(), elanTag);
 598                 LOG.debug("Port removed from subnet notification sent");
 599             } catch (Exception e) {
 600                 LOG.error("Port removed from subnet notification failed", e);
 601             } finally {
 602                 if (isLockAcquired) {
 603                     NeutronvpnUtils.unlock(lockManager, lockName);
 604                 }
 605             }
 606         }
 607         return vpnId;
 608     }
 609
 610     private void checkAndPublishPortAddNotification(String subnetIp, Uuid subnetId, Uuid portId, Long elanTag) throws
 611             InterruptedException {
 612         PortAddedToSubnetBuilder builder = new PortAddedToSubnetBuilder();
 613
 614         LOG.info("publish notification called");
 615
 616         builder.setSubnetIp(subnetIp);
 617         builder.setSubnetId(subnetId);
 618         builder.setPortId(portId);
 619         builder.setElanTag(elanTag);
 620
 621         notificationPublishService.putNotification(builder.build());
 622     }
 623
 624     private void checkAndPublishPortRemoveNotification(String subnetIp, Uuid subnetId, Uuid portId, Long elanTag)
 625             throws InterruptedException {
 626         PortRemovedFromSubnetBuilder builder = new PortRemovedFromSubnetBuilder();
 627
 628         LOG.info("publish notification called");
 629
 630         builder.setPortId(portId);
 631         builder.setSubnetIp(subnetIp);
 632         builder.setSubnetId(subnetId);
 633         builder.setElanTag(elanTag);
 634
 635         notificationPublishService.putNotification(builder.build());
 636     }
 637
 638 }