neutron-mapper/src/main/java/org/opendaylight/groupbasedpolicy/neutron/mapper/mapping/NeutronPortAware.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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.groupbasedpolicy.neutron.mapper.mapping;
   9
  10 import static com.google.common.base.Preconditions.checkNotNull;
  11
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.Set;
  15
  16 import javax.annotation.Nullable;
  17
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  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.groupbasedpolicy.domain_extension.l2_l3.util.L2L3IidFactory;
  23 import org.opendaylight.groupbasedpolicy.neutron.gbp.util.NeutronGbpIidFactory;
  24 import org.opendaylight.groupbasedpolicy.neutron.mapper.EndpointRegistrator;
  25 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkClient;
  26 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkService;
  27 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
  28 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.PortUtils;
  29 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.SubnetUtils;
  30 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  31 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  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.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInputBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpoint;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpointBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.ParentEndpointCaseBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpoint;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpointBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointReg;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointRegBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnreg;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnregBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2BridgeDomainId;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.NetworkDomainId;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.UniqueId;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3Address;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3AddressBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2Builder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3Builder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.IpPrefixType;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.L3Context;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev160427.MacAddressType;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContext;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContextBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.NetworkDomain;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.base.endpoints.by.ports.BaseEndpointByPort;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.endpoints.by.ports.EndpointByPort;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpoint;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpointKey;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.endpoints.PortByEndpoint;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomain;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomainBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  82 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  83 import org.slf4j.Logger;
  84 import org.slf4j.LoggerFactory;
  85
  86 import com.google.common.base.Optional;
  87 import com.google.common.collect.ImmutableList;
  88
  89 public class NeutronPortAware implements NeutronAware<Port> {
  90
  91     private static final Logger LOG = LoggerFactory.getLogger(NeutronPortAware.class);
  92     public static final InstanceIdentifier<Port> PORT_WILDCARD_IID =
  93             InstanceIdentifier.builder(Neutron.class).child(Ports.class).child(Port.class).build();
  94     private final DataBroker dataProvider;
  95     private final EndpointRegistrator epRegistrator;
  96
  97     public NeutronPortAware(DataBroker dataProvider, EndpointRegistrator epRegistrator) {
  98         this.dataProvider = checkNotNull(dataProvider);
  99         this.epRegistrator = checkNotNull(epRegistrator);
 100     }
 101
 102     @Override
 103     public void onCreated(Port port, Neutron neutron) {
 104         LOG.trace("created port - {}", port);
 105         if (PortUtils.isRouterInterfacePort(port)) {
 106             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 107             // router interface port can have only one IP
 108             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 109             if (!potentialPortIpWithSubnet.isPresent()) {
 110                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}",
 111                         port);
 112                 return;
 113             }
 114             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 115             ContextId routerL3Context = new ContextId(port.getDeviceId());
 116             // change L3Context for all EPs with same subnet as router port
 117             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), neutron);
 118             // set L3Context as parent for bridge domain which is parent of subnet
 119             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 120             Optional<Subnet> potentialRouterPortSubnet = SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(), neutron.getSubnets());
 121             if (!potentialRouterPortSubnet.isPresent()) {
 122                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}",
 123                         port);
 124                 return;
 125             }
 126             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 127             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 128             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 129             ForwardingContext l2Bd = new ForwardingContextBuilder().setContextId(l2BdId)
 130                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 131                 .setParent(MappingUtils.createParent(routerL3Context, MappingUtils.L3_CONTEXT))
 132                 .build();
 133             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd, true);
 134             // set virtual router IP for subnet
 135             NetworkDomain subnetDomain = NeutronSubnetAware.createSubnet(
 136                     routerPortSubnet, portIpWithSubnet.getIpAddress());
 137             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.subnetIid(tenantId, subnetDomain.getNetworkDomainId()), subnetDomain);
 138
 139             AddressEndpointKey addrEpKey = new AddressEndpointKey(port.getMacAddress().getValue(),
 140                     MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 141             UniqueId portId = new UniqueId(port.getUuid().getValue());
 142             addBaseEndpointMappings(addrEpKey, portId, rwTx);
 143
 144             // does the same for tenant forwarding domains
 145             processTenantForwarding(routerPortSubnet, routerL3Context, portIpWithSubnet, tenantId, rwTx);
 146
 147             DataStoreHelper.submitToDs(rwTx);
 148         } else if (PortUtils.isDhcpPort(port)) {
 149             // process as normal port but put it to DHCP group
 150             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 151             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 152             if (!firstFixedIps.isPresent()) {
 153                 LOG.warn("DHCP port does not have an IP address. {}", port);
 154                 return;
 155             }
 156             FixedIps ipWithSubnet = firstFixedIps.get();
 157             NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 158             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 159             epgsFromSecGroups.add(NetworkService.EPG_ID);
 160
 161             // BUILD BASE ENDPOINT
 162             AddressEndpointRegBuilder l2BaseEp = createBasicMacAddrEpInputBuilder(port, networkContainment,
 163                     epgsFromSecGroups);
 164             AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(port, networkContainment,
 165                     epgsFromSecGroups, neutron);
 166             setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 167
 168             // BUILD ENDPOINT
 169             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder = createEndpointRegFromPort(
 170                     port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
 171
 172             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 173             registerBaseEndpointAndStoreMapping(
 174                     ImmutableList.of(l2BaseEp.build(), l3BaseEp.build()), port, rwTx);
 175             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 176             DataStoreHelper.submitToDs(rwTx);
 177         } else if (PortUtils.isNormalPort(port)) {
 178             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 179             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder = null;
 180             AddressEndpointRegBuilder l2BaseEp;
 181             AddressEndpointRegBuilder l3BaseEp = null;
 182             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 183             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 184             epgsFromSecGroups.add(NetworkClient.EPG_ID);
 185             if (firstFixedIps.isPresent()) {
 186                 // endpoint has only one network containment therefore only first IP is used
 187                 FixedIps ipWithSubnet = firstFixedIps.get();
 188                 NetworkDomainId containment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 189                 epInBuilder = createEndpointRegFromPort(port, ipWithSubnet, containment, epgsFromSecGroups, neutron);
 190                 l2BaseEp = createBasicMacAddrEpInputBuilder(port,
 191                         containment, epgsFromSecGroups);
 192                 l3BaseEp = createBasicL3AddrEpInputBuilder(port, containment, epgsFromSecGroups, neutron);
 193                 setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 194             } else {
 195                 NetworkDomainId containment = new NetworkDomainId(port.getNetworkId().getValue());
 196                 epInBuilder = createEndpointRegFromPort(port, null, containment, epgsFromSecGroups, neutron);
 197                 l2BaseEp = createBasicMacAddrEpInputBuilder(port, containment, epgsFromSecGroups);
 198             }
 199             List<AddressEndpointReg> baseEpRegs = new ArrayList<>();
 200             baseEpRegs.add(l2BaseEp.build());
 201             if (l3BaseEp != null) {
 202                 baseEpRegs.add(l3BaseEp.build());
 203             }
 204             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 205             registerBaseEndpointAndStoreMapping(baseEpRegs, port, rwTx);
 206             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 207             DataStoreHelper.submitToDs(rwTx);
 208         } else if (PortUtils.isRouterGatewayPort(port)) {
 209             // do nothing because actual trigger is attaching of port to router
 210             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 211         } else if (PortUtils.isFloatingIpPort(port)) {
 212             // do nothing because trigger is floating IP
 213             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 214         } else {
 215             LOG.warn("Unknown port: {}", port);
 216         }
 217     }
 218
 219     private void setParentChildRelationshipForEndpoints(AddressEndpointRegBuilder parentEp,
 220             AddressEndpointRegBuilder childEp) {
 221         childEp.setParentEndpointChoice(new ParentEndpointCaseBuilder().setParentEndpoint(
 222                 ImmutableList.<ParentEndpoint>of(createParentEndpoint(parentEp))).build());
 223         parentEp.setChildEndpoint(ImmutableList.<ChildEndpoint>of(createChildEndpoint(childEp)));
 224     }
 225
 226     @Deprecated
 227     private void processTenantForwarding(Subnet routerPortSubnet, ContextId routerL3Context, FixedIps portIpWithSubnet,
 228             TenantId tenantId, ReadWriteTransaction rwTx) {
 229         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 230         L2BridgeDomain l2Bd = new L2BridgeDomainBuilder().setId(l2BdId).setParent(new L3ContextId(routerL3Context)).build();
 231         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd, true);
 232         // set virtual router IP for subnet
 233         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet subnet = NeutronSubnetAware.createTenantSubnet(
 234                 routerPortSubnet, portIpWithSubnet.getIpAddress());
 235         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, subnet.getId()), subnet);
 236     }
 237
 238     /**
 239      * Registers endpoint from {@link Port} and method parameters.
 240      * Always creates registration input for L2 endpoint.
 241      * Creates registration input for L3 endpoint if fixedIps argument is not null.
 242      */
 243     @Deprecated
 244     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createEndpointRegFromPort(
 245             Port port, FixedIps fixedIps, NetworkDomainId networkContainment, List<EndpointGroupId> endpointGroupIds, Neutron neutron) {
 246         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder = createBasicEndpointInputBuilder(
 247                 port).setNetworkContainment(networkContainment);
 248         if (fixedIps != null) {
 249             L3Address l3Address = resolveL3AddressFromPort(port, fixedIps, neutron);
 250             epInBuilder.setL3Address(ImmutableList.of(l3Address));
 251         }
 252         epInBuilder.setEndpointGroups(endpointGroupIds);
 253         return epInBuilder;
 254     }
 255
 256     private void changeL3ContextForEpsInSubnet(Uuid subnetUuid, Neutron neutron) {
 257         Set<Port> portsInSameSubnet = PortUtils.findPortsBySubnet(subnetUuid, neutron.getPorts());
 258         for (Port portInSameSubnet : portsInSameSubnet) {
 259             if (PortUtils.isNormalPort(portInSameSubnet) || PortUtils.isDhcpPort(portInSameSubnet)) {
 260                 // endpoints are created only from neutron normal port or DHCP port
 261                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(portInSameSubnet);
 262                 if (firstFixedIps.isPresent()) {
 263                     // endpoint has only one network containment therefore only first IP is used
 264                     FixedIps ipWithSubnet = firstFixedIps.get();
 265                     List<EndpointGroupId> endpointGroupIds = new ArrayList<>();
 266                     if (PortUtils.isDhcpPort(portInSameSubnet)) {
 267                         endpointGroupIds.add(NetworkService.EPG_ID);
 268                     } else if (PortUtils.isNormalPort(portInSameSubnet)) {
 269                         endpointGroupIds.add(NetworkClient.EPG_ID);
 270                     }
 271                     NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 272                     AddressEndpointRegBuilder l2BaseEp = createBasicMacAddrEpInputBuilder(portInSameSubnet,
 273                             networkContainment, endpointGroupIds);
 274                     AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(portInSameSubnet,
 275                             networkContainment, endpointGroupIds, neutron);
 276                     setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 277                     AddressEndpointUnreg addrEpUnreg = new AddressEndpointUnregBuilder().setAddress(l3BaseEp.getAddress())
 278                         .setAddressType(l3BaseEp.getAddressType())
 279                         .setContextId(new ContextId(portInSameSubnet.getNetworkId().getValue()))
 280                         .setContextType(l3BaseEp.getContextType())
 281                         .build();
 282                     epRegistrator.unregisterEndpoint(addrEpUnreg);
 283                     epRegistrator.registerEndpoint(l3BaseEp.build());
 284
 285                     modifyL3ContextForEndpoints(portInSameSubnet, ipWithSubnet, l3BaseEp.getContextId());
 286                 }
 287             }
 288         }
 289     }
 290
 291     private ChildEndpoint createChildEndpoint(AddressEndpointRegBuilder builder) {
 292         return new ChildEndpointBuilder().setAddress(builder.getAddress())
 293             .setAddressType(builder.getAddressType())
 294             .setContextId(builder.getContextId())
 295             .setContextType(builder.getContextType())
 296             .build();
 297     }
 298
 299     private ParentEndpoint createParentEndpoint(AddressEndpointRegBuilder builder) {
 300         return new ParentEndpointBuilder().setAddress(builder.getAddress())
 301             .setAddressType(builder.getAddressType())
 302             .setContextId(builder.getContextId())
 303             .setContextType(builder.getContextType())
 304             .build();
 305     }
 306
 307     @Deprecated
 308     private void modifyL3ContextForEndpoints(Port port, FixedIps resolvedPortFixedIp, ContextId newContextId) {
 309         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder = createBasicEndpointInputBuilder(port);
 310         epInBuilder.setNetworkContainment(new NetworkDomainId(resolvedPortFixedIp.getSubnetId().getValue()));
 311         L3Address l3Address = new L3AddressBuilder().setL3Context(new L3ContextId(newContextId))
 312             .setIpAddress(resolvedPortFixedIp.getIpAddress())
 313             .build();
 314         epInBuilder.setL3Address(ImmutableList.of(l3Address));
 315         List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 316         epgsFromSecGroups.add(NetworkClient.EPG_ID);
 317         epInBuilder.setEndpointGroups(epgsFromSecGroups);
 318         epRegistrator.registerEndpoint(epInBuilder.build());
 319         // unregister L3EP
 320         L3ContextId oldL3Context = new L3ContextId(port.getNetworkId().getValue());
 321         L3 l3 = new L3Builder().setL3Context(oldL3Context).setIpAddress(resolvedPortFixedIp.getIpAddress()).build();
 322         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput epUnreg = new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder().setL3(
 323                 ImmutableList.of(l3))
 324             .build();
 325         epRegistrator.unregisterEndpoint(epUnreg);
 326     }
 327
 328     private AddressEndpointRegBuilder createBasicMacAddrEpInputBuilder(Port port,
 329             NetworkDomainId networkContainment, @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 330         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 331             .setAddress(port.getMacAddress().getValue())
 332             .setAddressType(MacAddressType.class)
 333             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 334             .setContextId(new ContextId(port.getNetworkId().getValue()))
 335             .setTenant(new TenantId(port.getTenantId().getValue()))
 336             .setTimestamp(System.currentTimeMillis());
 337         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 338         addrEpbuilder.setEndpointGroup(epgs);
 339         if (networkContainment != null) {
 340             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder().setContainment(
 341                     new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 342                         .setNetworkDomainType(MappingUtils.SUBNET)
 343                         .build()).build());
 344         }
 345         return addrEpbuilder;
 346     }
 347
 348     private AddressEndpointRegBuilder createBasicL3AddrEpInputBuilder(Port port, NetworkDomainId networkContainment,
 349             @Nullable List<EndpointGroupId> endpointGroupsToAdd, Neutron neutron) {
 350         Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 351         if (!firstFixedIps.isPresent()) {
 352             throw new IllegalStateException("Failed to resolve FixedIps for port " + port.getKey()
 353                     + ". Cannot register L3 Address endpoint.");
 354         }
 355         ContextId resolveL3ContextForPort = resolveL3ContextForPort(port, port.getFixedIps().get(0), neutron);
 356
 357         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 358             .setAddress(MappingUtils.ipAddressToStringIpPrefix(firstFixedIps.get().getIpAddress()))
 359             .setAddressType(IpPrefixType.class)
 360             .setContextType(MappingUtils.L3_CONTEXT)
 361             .setContextId(resolveL3ContextForPort)
 362             .setTenant(new TenantId(port.getTenantId().getValue()))
 363             .setTimestamp(System.currentTimeMillis());
 364         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 365         addrEpbuilder.setEndpointGroup(epgs);
 366         if (networkContainment != null) {
 367             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder().setContainment(
 368                     new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 369                         .setNetworkDomainType(MappingUtils.SUBNET)
 370                         .build()).build());
 371         }
 372         return addrEpbuilder;
 373     }
 374
 375     private List<EndpointGroupId> concatEndpointGroups(List<Uuid> securityGroups,
 376             @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 377         List<EndpointGroupId> epgs = new ArrayList<>();
 378         if (securityGroups != null) {
 379             for (Uuid sgId : securityGroups) {
 380                 epgs.add(new EndpointGroupId(sgId.getValue()));
 381             }
 382         }
 383         if (endpointGroupsToAdd != null) {
 384             epgs.addAll(endpointGroupsToAdd);
 385         }
 386         return epgs;
 387     }
 388
 389     @Deprecated
 390     private static org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createBasicEndpointInputBuilder(
 391             Port port) {
 392         return new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder().setL2Context(
 393                 new L2BridgeDomainId(port.getNetworkId().getValue()))
 394             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 395             .setTenant(new TenantId(port.getTenantId().getValue()))
 396             .setTimestamp(System.currentTimeMillis());
 397     }
 398
 399     private static List<EndpointGroupId> resolveEpgIdsFromSecGroups(@Nullable List<Uuid> securityGroups) {
 400         List<EndpointGroupId> epgIds = new ArrayList<>();
 401         if ((securityGroups == null || securityGroups.isEmpty())) {
 402             return epgIds;
 403         }
 404         for (Uuid secGrp : securityGroups) {
 405             epgIds.add(new EndpointGroupId(secGrp.getValue()));
 406         }
 407         return epgIds;
 408     }
 409
 410     @Deprecated
 411     private void registerEndpointAndStoreMapping(
 412             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInput regEpInput,
 413             Port port, ReadWriteTransaction rwTx) {
 414         boolean isRegisteredEndpoint = epRegistrator.registerEndpoint(regEpInput);
 415         if (!isRegisteredEndpoint) {
 416             LOG.error("Failed to register an endpoint: {}", regEpInput);
 417             return;
 418         }
 419         UniqueId portId = new UniqueId(port.getUuid().getValue());
 420         EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()), new MacAddress(
 421                 port.getMacAddress().getValue()));
 422         LOG.trace("Adding Port-Endpoint mapping for port {} (device owner {}) and endpoint {}", port.getUuid()
 423             .getValue(), port.getDeviceOwner(), epKey);
 424         EndpointByPort endpointByPort = MappingFactory.createEndpointByPort(epKey, portId);
 425         rwTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.endpointByPortIid(portId), endpointByPort, true);
 426         PortByEndpoint portByEndpoint = MappingFactory.createPortByEndpoint(portId, epKey);
 427         rwTx.put(LogicalDatastoreType.OPERATIONAL,
 428                 NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), portByEndpoint,
 429                 true);
 430     }
 431
 432     @Deprecated
 433     private void unregisterEndpointAndRemoveMapping(
 434             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput unregEpInput,
 435             Port port, ReadWriteTransaction rwTx) {
 436         boolean isUnregisteredEndpoint = epRegistrator.unregisterEndpoint(unregEpInput);
 437         if (isUnregisteredEndpoint) {
 438             UniqueId portId = new UniqueId(port.getUuid().getValue());
 439             EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()), new MacAddress(
 440                     port.getMacAddress().getValue()));
 441             LOG.trace("Removing Port-Endpoint mapping for port {} (device owner {}) and endpoint {}", port.getUuid()
 442                 .getValue(), port.getDeviceOwner(), epKey);
 443             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 444                     NeutronGbpIidFactory.endpointByPortIid(portId), rwTx);
 445             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 446                     NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), rwTx);
 447         }
 448     }
 449
 450     private void registerBaseEndpointAndStoreMapping(List<AddressEndpointReg> addrEpRegs, Port port,
 451             WriteTransaction wTx) {
 452         RegisterEndpointInput regBaseEpInput = new RegisterEndpointInputBuilder().setAddressEndpointReg(addrEpRegs)
 453             .build();
 454
 455         boolean isRegisteredBaseEndpoint = epRegistrator.registerEndpoint(regBaseEpInput);
 456         if (!isRegisteredBaseEndpoint) {
 457             LOG.error("Failed to register an address endpoint: {}", addrEpRegs);
 458             return;
 459         }
 460         for (AddressEndpointReg addrEpReg : addrEpRegs) {
 461             if (MappingUtils.L2_BRDIGE_DOMAIN.equals(addrEpReg.getContextType())) {
 462                 UniqueId portId = new UniqueId(port.getUuid().getValue());
 463                 LOG.trace("Adding Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 464                         port.getUuid());
 465                 AddressEndpointKey addrEpKey = new AddressEndpointKey(addrEpReg.getAddress(),
 466                         addrEpReg.getAddressType(), addrEpReg.getContextId(), addrEpReg.getContextType());
 467                 addBaseEndpointMappings(addrEpKey, portId, wTx);
 468             }
 469         }
 470     }
 471
 472     private void addBaseEndpointMappings(AddressEndpointKey addrEpKey, UniqueId portId, WriteTransaction wTx) {
 473         BaseEndpointByPort baseEndpointByPort = MappingFactory.createBaseEndpointByPort(addrEpKey, portId);
 474         wTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.baseEndpointByPortIid(portId),
 475                 baseEndpointByPort, true);
 476         PortByBaseEndpoint portByBaseEndpoint = MappingFactory.createPortByBaseEndpoint(portId, addrEpKey);
 477         wTx.put(LogicalDatastoreType.OPERATIONAL,
 478                 NeutronGbpIidFactory.portByBaseEndpointIid(new PortByBaseEndpointKey(
 479                         portByBaseEndpoint.getKey())), portByBaseEndpoint, true);
 480     }
 481
 482     private void unregisterEndpointAndRemoveMapping(UnregisterEndpointInput baseEpUnreg, Port port,
 483             ReadWriteTransaction rwTx) {
 484         boolean isUnregisteredBaseEndpoint = epRegistrator.unregisterEndpoint(baseEpUnreg);
 485         if (isUnregisteredBaseEndpoint) {
 486             UniqueId portId = new UniqueId(port.getUuid().getValue());
 487             PortByBaseEndpointKey portByBaseEndpointKey = new PortByBaseEndpointKey(port.getMacAddress().getValue(),
 488                     MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 489             LOG.trace("Removing Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 490                     port.getUuid().getValue(), port.getDeviceOwner(), portByBaseEndpointKey);
 491             removeBaseEndpointMappings(portByBaseEndpointKey, portId, rwTx);
 492         }
 493     }
 494
 495     private void removeBaseEndpointMappings(PortByBaseEndpointKey portByBaseEndpointKey, UniqueId portId, ReadWriteTransaction rwTx) {
 496         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 497                 NeutronGbpIidFactory.baseEndpointByPortIid(portId), rwTx);
 498         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 499                 NeutronGbpIidFactory.portByBaseEndpointIid(portByBaseEndpointKey), rwTx);
 500     }
 501
 502     @Override
 503     public void onUpdated(Port oldPort, Port newPort, Neutron oldNeutron, Neutron newNeutron) {
 504         LOG.trace("updated port - OLD: {}\nNEW: {}", oldPort, newPort);
 505         onDeleted(oldPort, oldNeutron, newNeutron);
 506         onCreated(newPort, newNeutron);
 507     }
 508
 509     @Override
 510     public void onDeleted(Port port, Neutron oldNeutron, Neutron newNeutron) {
 511         LOG.trace("deleted port - {}", port);
 512         if (PortUtils.isRouterInterfacePort(port)) {
 513             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 514             // router interface port can have only one IP
 515             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 516             if (!potentialPortIpWithSubnet.isPresent()) {
 517                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}",
 518                         port);
 519                 return;
 520             }
 521             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 522             L3ContextId l3Context = new L3ContextId(port.getNetworkId().getValue());
 523             // change L3Context for all EPs with same subnet as router port
 524             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), oldNeutron);
 525             // set L3Context as parent for bridge domain which is parent of subnet
 526             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 527             Optional<Subnet> potentialRouterPortSubnet = SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(),
 528                     oldNeutron.getSubnets());
 529             if (!potentialRouterPortSubnet.isPresent()) {
 530                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}", port);
 531                 return;
 532             }
 533             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 534             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 535             modifyForwardingOnDelete(routerPortSubnet, l3Context, tenantId, rwTx);
 536             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 537             ForwardingContext fwdCtx = new ForwardingContextBuilder().setContextId(l2BdId)
 538                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 539                 .setParent(MappingUtils.createParent(l3Context, MappingUtils.L3_CONTEXT))
 540                 .build();
 541             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
 542                     L2L3IidFactory.l2BridgeDomainIid(tenantId, fwdCtx.getContextId()), fwdCtx);
 543             NetworkDomain subnet = NeutronSubnetAware.createSubnet(routerPortSubnet, null);
 544             rwTx.put(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.subnetIid(tenantId, subnet.getNetworkDomainId()),
 545                     subnet);
 546             UniqueId portId = new UniqueId(port.getUuid().getValue());
 547             PortByBaseEndpointKey portByBaseEndpointKey = new PortByBaseEndpointKey(port.getMacAddress().getValue(),
 548                     MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 549             removeBaseEndpointMappings(portByBaseEndpointKey, portId, rwTx);
 550             DataStoreHelper.submitToDs(rwTx);
 551         } else if (PortUtils.isDhcpPort(port)) {
 552             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 553             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 554             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 555             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx);
 556             DataStoreHelper.submitToDs(rwTx);
 557         } else if (PortUtils.isNormalPort(port)) {
 558             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 559             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 560             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 561             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx);
 562             DataStoreHelper.submitToDs(rwTx);
 563         } else if (PortUtils.isRouterGatewayPort(port)) {
 564             // do nothing because actual trigger is detaching of port from router
 565             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 566         } else if (PortUtils.isFloatingIpPort(port)) {
 567             // do nothing because trigger is floating IP
 568             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 569         } else {
 570             LOG.warn("Unknown port: {}", port);
 571         }
 572     }
 573
 574     @Deprecated
 575     private void modifyForwardingOnDelete(Subnet routerPortSubnet, L3ContextId l3contextId, TenantId tenantId, ReadWriteTransaction rwTx) {
 576         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 577         L2BridgeDomain l2Bd = new L2BridgeDomainBuilder().setId(l2BdId).setParent(l3contextId).build();
 578         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd);
 579         // remove virtual router IP for subnet
 580         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet tenantSubnet = NeutronSubnetAware.createTenantSubnet(routerPortSubnet, null);
 581         rwTx.put(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, tenantSubnet.getId()), tenantSubnet);
 582     }
 583
 584     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput createUnregisterBaseEndpointInput(
 585             Port port, Neutron neutron) {
 586         UnregisterEndpointInputBuilder inputBuilder = new UnregisterEndpointInputBuilder();
 587         List<AddressEndpointUnreg> list = new ArrayList<>();
 588         AddressEndpointUnregBuilder addrL2EpUnregBuilder = new AddressEndpointUnregBuilder();
 589         addrL2EpUnregBuilder.setAddress(port.getMacAddress().getValue())
 590             .setAddressType(MacAddressType.class)
 591             .setContextId(new ContextId(port.getNetworkId().getValue()))
 592             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN);
 593         list.add(addrL2EpUnregBuilder.build());
 594         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 595         if (potentialFirstIp.isPresent()) {
 596             ContextId l3ContextId = resolveL3ContextForPort(port, potentialFirstIp.get(), neutron);
 597             AddressEndpointUnregBuilder addrL3EpUnregBuilder = new AddressEndpointUnregBuilder();
 598             addrL3EpUnregBuilder.setAddress(MappingUtils.ipAddressToStringIpPrefix(potentialFirstIp.get().getIpAddress()))
 599                 .setAddressType(IpPrefixType.class)
 600                 .setContextId(l3ContextId)
 601                 .setContextType(L3Context.class);
 602             list.add(addrL3EpUnregBuilder.build());
 603         }
 604         inputBuilder.setAddressEndpointUnreg(list);
 605         return inputBuilder.build();
 606     }
 607
 608     @Deprecated
 609     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput createUnregisterEndpointInput(
 610             Port port, Neutron neutron) {
 611         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder inputBuilder =
 612                 new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder();
 613         L2 l2Ep = new L2Builder().setL2Context(new L2BridgeDomainId(port.getNetworkId().getValue()))
 614             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 615             .build();
 616         inputBuilder.setL2(ImmutableList.of(l2Ep));
 617         // we've registered EP with only first IP so remove only EP with first IP
 618         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 619         if (potentialFirstIp.isPresent()) {
 620             FixedIps firstIp = potentialFirstIp.get();
 621             L3Address l3Address = resolveL3AddressFromPort(port, firstIp, neutron);
 622             L3 l3 = new L3Builder().setIpAddress(l3Address.getIpAddress())
 623                 .setL3Context(l3Address.getL3Context())
 624                 .build();
 625             inputBuilder.setL3(ImmutableList.of(l3));
 626         }
 627         return inputBuilder.build();
 628     }
 629
 630     @Deprecated
 631     private static L3Address resolveL3AddressFromPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 632         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 633         for (Port routerIfacePort : routerIfacePorts) {
 634             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 635             // if port is in the same subnet as router interface then we want to use L3Context of
 636             // router
 637             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 638                 L3ContextId epL3ContextId = new L3ContextId(routerIfacePort.getDeviceId());
 639                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 640                 return new L3AddressBuilder().setL3Context(epL3ContextId)
 641                     .setIpAddress(portFixedIPs.getIpAddress())
 642                     .build();
 643             }
 644         }
 645         return new L3AddressBuilder().setL3Context(new L3ContextId(port.getNetworkId().getValue()))
 646             .setIpAddress(portFixedIPs.getIpAddress())
 647             .build();
 648     }
 649
 650     private static ContextId resolveL3ContextForPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 651         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 652         for (Port routerIfacePort : routerIfacePorts) {
 653             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 654             // if port is in the same subnet as router interface then we want to use L3Context of
 655             // router
 656             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 657                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 658                 return new ContextId(routerIfacePort.getDeviceId());
 659             }
 660         }
 661         return new ContextId(port.getNetworkId().getValue());
 662     }
 663 }