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.Collections;
  14 import java.util.List;
  15 import java.util.Set;
  16 import java.util.concurrent.ExecutionException;
  17 import java.util.stream.Collectors;
  18
  19 import javax.annotation.Nullable;
  20
  21 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  22 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  23 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  24 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  25 import org.opendaylight.groupbasedpolicy.domain_extension.l2_l3.util.L2L3IidFactory;
  26 import org.opendaylight.groupbasedpolicy.neutron.gbp.util.NeutronGbpIidFactory;
  27 import org.opendaylight.groupbasedpolicy.neutron.mapper.EndpointRegistrator;
  28 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.MetadataService;
  29 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkClient;
  30 import org.opendaylight.groupbasedpolicy.neutron.mapper.infrastructure.NetworkService;
  31 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
  32 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.PortUtils;
  33 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.SubnetUtils;
  34 import org.opendaylight.groupbasedpolicy.util.DataStoreHelper;
  35 import org.opendaylight.groupbasedpolicy.util.IidFactory;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInput;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.RegisterEndpointInputBuilder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInputBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.NetworkContainmentBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.common.endpoint.fields.network.containment.containment.NetworkDomainContainmentBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpoint;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.endpoints.address.endpoints.AddressEndpointKey;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpoint;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.has.child.endpoints.ChildEndpointBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.ParentEndpointCaseBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpoint;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.parent.child.endpoints.parent.endpoint.choice.parent.endpoint._case.ParentEndpointBuilder;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointReg;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.register.endpoint.input.AddressEndpointRegBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnreg;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.unregister.endpoint.input.AddressEndpointUnregBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ContextId;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2BridgeDomainId;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.NetworkDomainId;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.UniqueId;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3Address;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3AddressBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2Builder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3Builder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.IpPrefixType;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.L3Context;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.l2_l3.rev170511.MacAddressType;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContext;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.ForwardingContextBuilder;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.forwarding.rev160427.forwarding.forwarding.by.tenant.NetworkDomain;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.base.endpoints.by.ports.BaseEndpointByPort;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.gbp.by.neutron.mappings.endpoints.by.ports.EndpointByPort;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpoint;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.base.endpoints.PortByBaseEndpointKey;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.neutron.gbp.mapper.rev150513.mappings.neutron.by.gbp.mappings.ports.by.endpoints.PortByEndpoint;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomain;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.L2BridgeDomainBuilder;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.binding.rev150712.PortBindingExtension;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIps;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsBuilder;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.port.attributes.FixedIpsKey;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.Ports;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.PortBuilder;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.rev150712.Neutron;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  93 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  94 import org.slf4j.Logger;
  95 import org.slf4j.LoggerFactory;
  96
  97 import com.google.common.base.Optional;
  98 import com.google.common.collect.ImmutableList;
  99 import com.google.common.collect.Lists;
 100
 101 public class NeutronPortAware implements NeutronAware<Port> {
 102
 103     private static final Logger LOG = LoggerFactory.getLogger(NeutronPortAware.class);
 104     public static final InstanceIdentifier<Port> PORT_WILDCARD_IID =
 105             InstanceIdentifier.builder(Neutron.class).child(Ports.class).child(Port.class).build();
 106     private final DataBroker dataProvider;
 107     private final EndpointRegistrator epRegistrator;
 108     private final IpPrefix metadataIpPrefix;
 109
 110     public NeutronPortAware(DataBroker dataProvider, EndpointRegistrator epRegistrator,
 111             @Nullable IpPrefix metadataIpPrefix) {
 112         this.dataProvider = checkNotNull(dataProvider);
 113         this.epRegistrator = checkNotNull(epRegistrator);
 114         this.metadataIpPrefix = checkNotNull(metadataIpPrefix);
 115     }
 116
 117     @Override
 118     public void onCreated(Port createdItem, Neutron neutron) {
 119         onCreated(createdItem, neutron, true);
 120     }
 121
 122     public void onCreated(Port port, Neutron neutron, boolean addBaseEpMapping) {
 123         LOG.trace("created port - {}", port);
 124         if (PortUtils.isRouterInterfacePort(port)) {
 125             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 126             // router interface port can have only one IP
 127             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 128             if (!potentialPortIpWithSubnet.isPresent()) {
 129                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}", port);
 130                 return;
 131             }
 132             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 133             ContextId routerL3Context = new ContextId(port.getDeviceId());
 134             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 135             AddressEndpointKey addrEpKey = new AddressEndpointKey(port.getMacAddress().getValue(), MacAddressType.class,
 136                     new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 137             UniqueId portId = new UniqueId(port.getUuid().getValue());
 138             addBaseEndpointMappings(addrEpKey, portId, rwTx);
 139             // Add Qrouter and VPProuter port as Endpoint
 140             if (port.getAugmentation(PortBindingExtension.class) != null && PortUtils.DEVICE_VIF_TYPE
 141                 .equals(port.getAugmentation(PortBindingExtension.class).getVifType())) {
 142                 LOG.trace("Port is QRouter port: {}", port.getUuid().getValue());
 143                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 144                 if (!firstFixedIps.isPresent()) {
 145                     LOG.warn("QRouter port does not have an IP address. {}", port);
 146                     return;
 147                 }
 148                 FixedIps ipWithSubnet = firstFixedIps.get();
 149                 NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 150                 List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 151                 epgsFromSecGroups.add(NetworkService.EPG_ID);
 152                 // BUILD BASE ENDPOINT
 153                 AddressEndpointRegBuilder l2BaseEp =
 154                         createBasicMacAddrEpInputBuilder(port, networkContainment, epgsFromSecGroups);
 155                 AddressEndpointRegBuilder l3BaseEp =
 156                         createBasicL3AddrEpInputBuilder(port, networkContainment, epgsFromSecGroups, neutron);
 157                 setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 158                 // BUILD ENDPOINT
 159                 org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 160                         createEndpointRegFromPort(port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
 161                 registerBaseEndpointAndStoreMapping(ImmutableList.of(l2BaseEp.build(), l3BaseEp.build()), port, rwTx,
 162                         addBaseEpMapping);
 163                 registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 164             }
 165             // change L3Context for all EPs with same subnet as router port
 166             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), port.getNetworkId(),
 167                     new Uuid(port.getDeviceId()), neutron, true);
 168             // set L3Context as parent for bridge domain which is parent of subnet
 169             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 170             Optional<Subnet> potentialRouterPortSubnet =
 171                     SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(), neutron.getSubnets());
 172             if (!potentialRouterPortSubnet.isPresent()) {
 173                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}", port);
 174                 return;
 175             }
 176             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 177             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 178             ForwardingContext l2Bd = new ForwardingContextBuilder().setContextId(l2BdId)
 179                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 180                 .setParent(MappingUtils.createParent(routerL3Context, MappingUtils.L3_CONTEXT))
 181                 .build();
 182             rwTx.merge(LogicalDatastoreType.CONFIGURATION, L2L3IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd,
 183                     true);
 184             // set virtual router IP for subnet
 185             NetworkDomain subnetDomain = NeutronSubnetAware.createSubnet(routerPortSubnet, neutron, null);
 186             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
 187                     L2L3IidFactory.subnetIid(tenantId, subnetDomain.getNetworkDomainId()), subnetDomain);
 188
 189             // does the same for tenant forwarding domains
 190             processTenantForwarding(routerPortSubnet, routerL3Context, portIpWithSubnet, tenantId, rwTx);
 191
 192             DataStoreHelper.submitToDs(rwTx);
 193         } else if (PortUtils.isDhcpPort(port)) {
 194             // process as normal port but put it to DHCP group
 195             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 196             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 197             if (!firstFixedIps.isPresent()) {
 198                 LOG.warn("DHCP port does not have an IP address. {}", port);
 199                 return;
 200             }
 201             FixedIps ipWithSubnet = firstFixedIps.get();
 202             NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 203             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 204             epgsFromSecGroups.add(NetworkService.EPG_ID);
 205             AddressEndpointRegBuilder l2BaseEp =
 206                     createBasicMacAddrEpInputBuilder(port, networkContainment, Collections.emptyList());
 207             AddressEndpointRegBuilder l3BaseEp =
 208                     createBasicL3AddrEpInputBuilder(port, networkContainment, epgsFromSecGroups, neutron);
 209
 210             setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 211             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 212                     createEndpointRegFromPort(port, ipWithSubnet, networkContainment, epgsFromSecGroups, neutron);
 213             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 214             registerBaseEndpointAndStoreMapping(ImmutableList.of(l3BaseEp.build(), l2BaseEp.build()), port, rwTx,
 215                     addBaseEpMapping);
 216             registerMetadataServiceForDhcpPort(port, neutron, l2BaseEp, rwTx, true);
 217             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 218             DataStoreHelper.submitToDs(rwTx);
 219         } else if (PortUtils.isNormalPort(port)) {
 220             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 221             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 222                     null;
 223             AddressEndpointRegBuilder l2BaseEp;
 224             AddressEndpointRegBuilder l3BaseEp = null;
 225             Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 226             List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 227             epgsFromSecGroups.add(NetworkClient.EPG_ID);
 228             if (firstFixedIps.isPresent()) {
 229                 // endpoint has only one network containment therefore only first IP is used
 230                 FixedIps ipWithSubnet = firstFixedIps.get();
 231                 NetworkDomainId containment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 232                 epInBuilder = createEndpointRegFromPort(port, ipWithSubnet, containment, epgsFromSecGroups, neutron);
 233                 l2BaseEp = createBasicMacAddrEpInputBuilder(port, containment, epgsFromSecGroups);
 234                 l3BaseEp = createBasicL3AddrEpInputBuilder(port, containment, epgsFromSecGroups, neutron);
 235                 setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 236             } else {
 237                 NetworkDomainId containment = new NetworkDomainId(port.getNetworkId().getValue());
 238                 epInBuilder = createEndpointRegFromPort(port, null, containment, epgsFromSecGroups, neutron);
 239                 l2BaseEp = createBasicMacAddrEpInputBuilder(port, containment, epgsFromSecGroups);
 240             }
 241             List<AddressEndpointReg> baseEpRegs = new ArrayList<>();
 242             baseEpRegs.add(l2BaseEp.build());
 243             if (l3BaseEp != null) {
 244                 baseEpRegs.add(l3BaseEp.build());
 245             }
 246             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 247             registerBaseEndpointAndStoreMapping(baseEpRegs, port, rwTx, addBaseEpMapping);
 248             registerEndpointAndStoreMapping(epInBuilder.build(), port, rwTx);
 249             DataStoreHelper.submitToDs(rwTx);
 250         } else if (PortUtils.isRouterGatewayPort(port)) {
 251             // do nothing because actual trigger is attaching of port to router
 252             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 253         } else if (PortUtils.isFloatingIpPort(port)) {
 254             // do nothing because trigger is floating IP
 255             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 256         } else {
 257             LOG.warn("Unknown port: {}", port);
 258         }
 259     }
 260
 261     private Port cloneMetadataPortFromDhcpPort(Port port, IpPrefix metadataPrefix) {
 262         IpAddress metadataIp = MappingUtils.ipPrefixToIpAddress(metadataPrefix);
 263         List<FixedIps> metadataIps = port.getFixedIps().stream().map(fi -> {
 264             FixedIpsKey key = new FixedIpsKey(metadataIp, fi.getKey().getSubnetId());
 265             return new FixedIpsBuilder(fi).setKey(key).setIpAddress(metadataIp).build();
 266         }).collect(Collectors.toList());
 267         return new PortBuilder(port).setFixedIps(metadataIps).build();
 268     }
 269
 270     private void registerMetadataServiceForDhcpPort(Port port, Neutron neutron, AddressEndpointRegBuilder childEpToAdd,
 271             ReadWriteTransaction rwTx, boolean registerMapping) {
 272         Optional<NetworkDomainId> resolveNetworkContainment = PortUtils.resolveNetworkContainment(port);
 273         if (!resolveNetworkContainment.isPresent()) {
 274             LOG.warn("DHCP port does not have an IP address. {}", port);
 275             return;
 276         }
 277         AddressEndpointRegBuilder metadataEp =
 278                 createBasicL3AddrEpInputBuilder(cloneMetadataPortFromDhcpPort(port, metadataIpPrefix),
 279                         resolveNetworkContainment.get(), Lists.newArrayList(MetadataService.EPG_ID), neutron);
 280         AddressEndpointKey aek = new AddressEndpointKey(metadataEp.getAddress(), metadataEp.getAddressType(),
 281                 metadataEp.getContextId(), metadataEp.getContextType());
 282         Optional<AddressEndpoint> optMetadataEp =
 283                 DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL, IidFactory.addressEndpointIid(aek), rwTx);
 284         if (!optMetadataEp.isPresent()) {
 285             setParentChildRelationshipForEndpoints(metadataEp, childEpToAdd);
 286         } else {
 287             List<ChildEndpoint> childs = optMetadataEp.get().getChildEndpoint();
 288             childs.add(createChildEndpoint(childEpToAdd));
 289             metadataEp.setChildEndpoint(childs);
 290         }
 291         registerBaseEndpointAndStoreMapping(ImmutableList.of(metadataEp.build()), port, rwTx, registerMapping);
 292     }
 293
 294     private void setParentChildRelationshipForEndpoints(AddressEndpointRegBuilder parentEp,
 295             AddressEndpointRegBuilder childEp) {
 296         childEp.setParentEndpointChoice(new ParentEndpointCaseBuilder()
 297             .setParentEndpoint(ImmutableList.<ParentEndpoint>of(createParentEndpoint(parentEp))).build());
 298         parentEp.setChildEndpoint(ImmutableList.<ChildEndpoint>of(createChildEndpoint(childEp)));
 299     }
 300
 301     @Deprecated
 302     private void processTenantForwarding(Subnet routerPortSubnet, ContextId routerL3Context, FixedIps portIpWithSubnet,
 303             TenantId tenantId, ReadWriteTransaction rwTx) {
 304         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 305         L2BridgeDomain l2Bd =
 306                 new L2BridgeDomainBuilder().setId(l2BdId).setParent(new L3ContextId(routerL3Context)).build();
 307         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd, true);
 308         // set virtual router IP for subnet
 309         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet subnet =
 310                 NeutronSubnetAware.createTenantSubnet(routerPortSubnet, portIpWithSubnet.getIpAddress());
 311         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, subnet.getId()), subnet);
 312     }
 313
 314     /**
 315      * Registers endpoint from {@link Port} and method parameters.
 316      * Always creates registration input for L2 endpoint.
 317      * Creates registration input for L3 endpoint if fixedIps argument is not null.
 318      */
 319     @Deprecated
 320     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createEndpointRegFromPort(
 321             Port port, FixedIps fixedIps, NetworkDomainId networkContainment, List<EndpointGroupId> endpointGroupIds,
 322             Neutron neutron) {
 323         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 324                 createBasicEndpointInputBuilder(port).setNetworkContainment(networkContainment);
 325         if (fixedIps != null) {
 326             L3Address l3Address = resolveL3AddressFromPort(port, fixedIps, neutron);
 327             epInBuilder.setL3Address(ImmutableList.of(l3Address));
 328         }
 329         epInBuilder.setEndpointGroups(endpointGroupIds);
 330         return epInBuilder;
 331     }
 332
 333     private void changeL3ContextForEpsInSubnet(Uuid subnetUuid, Uuid networkId, Uuid routerId, Neutron neutron,
 334             boolean routerInterfAdded) {
 335         if (neutron == null) {
 336             LOG.debug("No new data are written, there is no L3 context in subnet {} to update", subnetUuid);
 337             return;
 338         }
 339         java.util.Optional<Subnet> optSubnet = neutron.getSubnets()
 340             .getSubnet()
 341             .stream()
 342             .filter(subnet -> subnet.getNetworkId() != null
 343                     && subnet.getUuid().getValue().equals(subnetUuid.getValue()))
 344             .findAny();
 345         if (!optSubnet.isPresent()) {
 346             LOG.error("Failed to update metadata endpoint in subnet {}. Could not resolve Network ID", subnetUuid);
 347         } else {
 348             AddressEndpointUnregBuilder metadataEpUnreg =
 349                     new AddressEndpointUnregBuilder().setAddress(String.valueOf(metadataIpPrefix.getValue()))
 350                         .setAddressType(IpPrefixType.class)
 351                         .setContextType(MappingUtils.L3_CONTEXT);
 352             if (routerInterfAdded) {
 353                 metadataEpUnreg.setContextId(new ContextId(networkId.getValue()));
 354             } else {
 355                 metadataEpUnreg.setContextId(new ContextId(routerId.getValue()));
 356             }
 357             epRegistrator.unregisterEndpoint(metadataEpUnreg.build());
 358         }
 359         Set<Port> portsInSameSubnet = PortUtils.findPortsBySubnet(subnetUuid, neutron.getPorts());
 360         for (Port portInSameSubnet : portsInSameSubnet) {
 361             if (PortUtils.isNormalPort(portInSameSubnet) || PortUtils.isDhcpPort(portInSameSubnet)
 362                     || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
 363                 // endpoints are created only from neutron normal port or DHCP port
 364                 Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(portInSameSubnet);
 365                 if (firstFixedIps.isPresent()) {
 366                     // endpoint has only one network containment therefore only first IP is used
 367                     FixedIps ipWithSubnet = firstFixedIps.get();
 368                     List<EndpointGroupId> endpointGroupIds = new ArrayList<>();
 369                     if (PortUtils.isDhcpPort(portInSameSubnet)
 370                             || PortUtils.isQrouterOrVppRouterPort(portInSameSubnet)) {
 371                         endpointGroupIds.add(NetworkService.EPG_ID);
 372                     } else if (PortUtils.isNormalPort(portInSameSubnet)) {
 373                         endpointGroupIds.add(NetworkClient.EPG_ID);
 374                     }
 375                     NetworkDomainId networkContainment = new NetworkDomainId(ipWithSubnet.getSubnetId().getValue());
 376                     AddressEndpointRegBuilder l2BaseEp =
 377                             createBasicMacAddrEpInputBuilder(portInSameSubnet, networkContainment, endpointGroupIds);
 378                     AddressEndpointRegBuilder l3BaseEp = createBasicL3AddrEpInputBuilder(portInSameSubnet,
 379                             networkContainment, endpointGroupIds, neutron);
 380
 381                     setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 382                     AddressEndpointUnregBuilder addrEpUnreg =
 383                             new AddressEndpointUnregBuilder().setAddress(l3BaseEp.getAddress())
 384                                 .setAddressType(l3BaseEp.getAddressType())
 385                                 .setContextType(l3BaseEp.getContextType());
 386                     if (routerInterfAdded) {
 387                         addrEpUnreg.setContextId(new ContextId(networkId.getValue()));
 388                     } else {
 389                         addrEpUnreg.setContextId(new ContextId(routerId.getValue()));
 390                     }
 391                     epRegistrator.unregisterEndpoint(addrEpUnreg.build());
 392                     if (routerInterfAdded) {
 393                         l3BaseEp.setContextId(new ContextId(routerId.getValue()));
 394                     } else {
 395                         l3BaseEp.setContextId(new ContextId(networkId.getValue()));
 396                     }
 397                     setParentChildRelationshipForEndpoints(l3BaseEp, l2BaseEp);
 398                     RegisterEndpointInput regBaseEpInput = new RegisterEndpointInputBuilder()
 399                         .setAddressEndpointReg(ImmutableList.of(l2BaseEp.build(), l3BaseEp.build())).build();
 400                     epRegistrator.registerEndpoint(regBaseEpInput);
 401                     if (PortUtils.isDhcpPort(portInSameSubnet)) {
 402                         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 403                         registerMetadataServiceForDhcpPort(portInSameSubnet, neutron, l2BaseEp, rwTx, false);
 404                         DataStoreHelper.submitToDs(rwTx);
 405                     }
 406                     modifyL3ContextForEndpoints(portInSameSubnet, ipWithSubnet, l3BaseEp.getContextId());
 407                 }
 408             }
 409         }
 410     }
 411
 412     private ChildEndpoint createChildEndpoint(AddressEndpointRegBuilder builder) {
 413         return new ChildEndpointBuilder().setAddress(builder.getAddress())
 414             .setAddressType(builder.getAddressType())
 415             .setContextId(builder.getContextId())
 416             .setContextType(builder.getContextType())
 417             .build();
 418     }
 419
 420     private ParentEndpoint createParentEndpoint(AddressEndpointRegBuilder builder) {
 421         return new ParentEndpointBuilder().setAddress(builder.getAddress())
 422             .setAddressType(builder.getAddressType())
 423             .setContextId(builder.getContextId())
 424             .setContextType(builder.getContextType())
 425             .build();
 426     }
 427
 428     @Deprecated
 429     private void modifyL3ContextForEndpoints(Port port, FixedIps resolvedPortFixedIp, ContextId newContextId) {
 430         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder epInBuilder =
 431                 createBasicEndpointInputBuilder(port);
 432         epInBuilder.setNetworkContainment(new NetworkDomainId(resolvedPortFixedIp.getSubnetId().getValue()));
 433         L3Address l3Address = new L3AddressBuilder().setL3Context(new L3ContextId(newContextId))
 434             .setIpAddress(resolvedPortFixedIp.getIpAddress())
 435             .build();
 436         epInBuilder.setL3Address(ImmutableList.of(l3Address));
 437         List<EndpointGroupId> epgsFromSecGroups = resolveEpgIdsFromSecGroups(port.getSecurityGroups());
 438         epgsFromSecGroups.add(NetworkClient.EPG_ID);
 439         epInBuilder.setEndpointGroups(epgsFromSecGroups);
 440         epRegistrator.registerEndpoint(epInBuilder.build());
 441         // unregister L3EP
 442         L3ContextId oldL3Context = new L3ContextId(port.getNetworkId().getValue());
 443         L3 l3 = new L3Builder().setL3Context(oldL3Context).setIpAddress(resolvedPortFixedIp.getIpAddress()).build();
 444         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput epUnreg =
 445                 new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder()
 446                     .setL3(ImmutableList.of(l3)).build();
 447         epRegistrator.unregisterEndpoint(epUnreg);
 448     }
 449
 450     private AddressEndpointRegBuilder createBasicMacAddrEpInputBuilder(Port port, NetworkDomainId networkContainment,
 451             @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 452         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 453             .setAddress(port.getMacAddress().getValue())
 454             .setAddressType(MacAddressType.class)
 455             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 456             .setContextId(new ContextId(port.getNetworkId().getValue()))
 457             .setTenant(new TenantId(port.getTenantId().getValue()))
 458             .setTimestamp(System.currentTimeMillis());
 459         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 460         addrEpbuilder.setEndpointGroup(epgs);
 461         if (networkContainment != null) {
 462             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder()
 463                 .setContainment(new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 464                     .setNetworkDomainType(MappingUtils.SUBNET)
 465                     .build())
 466                 .build());
 467         }
 468         return addrEpbuilder;
 469     }
 470
 471     private AddressEndpointRegBuilder createBasicL3AddrEpInputBuilder(Port port, NetworkDomainId networkContainment,
 472             @Nullable List<EndpointGroupId> endpointGroupsToAdd, Neutron neutron) {
 473         Optional<FixedIps> firstFixedIps = PortUtils.resolveFirstFixedIps(port);
 474         if (!firstFixedIps.isPresent()) {
 475             throw new IllegalStateException(
 476                     "Failed to resolve FixedIps for port " + port.getKey() + ". Cannot register L3 Address endpoint.");
 477         }
 478         ContextId resolveL3ContextForPort = resolveL3ContextForPort(port, port.getFixedIps().get(0), neutron);
 479
 480         AddressEndpointRegBuilder addrEpbuilder = new AddressEndpointRegBuilder().setAddressType(MacAddressType.class)
 481             .setAddress(MappingUtils.ipAddressToStringIpPrefix(firstFixedIps.get().getIpAddress()))
 482             .setAddressType(IpPrefixType.class)
 483             .setContextType(MappingUtils.L3_CONTEXT)
 484             .setContextId(resolveL3ContextForPort)
 485             .setTenant(new TenantId(port.getTenantId().getValue()))
 486             .setTimestamp(System.currentTimeMillis());
 487         List<EndpointGroupId> epgs = concatEndpointGroups(port.getSecurityGroups(), endpointGroupsToAdd);
 488         addrEpbuilder.setEndpointGroup(epgs);
 489         if (networkContainment != null) {
 490             addrEpbuilder.setNetworkContainment(new NetworkContainmentBuilder()
 491                 .setContainment(new NetworkDomainContainmentBuilder().setNetworkDomainId(networkContainment)
 492                     .setNetworkDomainType(MappingUtils.SUBNET)
 493                     .build())
 494                 .build());
 495         }
 496         return addrEpbuilder;
 497     }
 498
 499     private List<EndpointGroupId> concatEndpointGroups(List<Uuid> securityGroups,
 500             @Nullable List<EndpointGroupId> endpointGroupsToAdd) {
 501         List<EndpointGroupId> epgs = new ArrayList<>();
 502         if (securityGroups != null) {
 503             for (Uuid sgId : securityGroups) {
 504                 epgs.add(new EndpointGroupId(sgId.getValue()));
 505             }
 506         }
 507         if (endpointGroupsToAdd != null) {
 508             epgs.addAll(endpointGroupsToAdd);
 509         }
 510         return epgs;
 511     }
 512
 513     @Deprecated
 514     private static org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder createBasicEndpointInputBuilder(
 515             Port port) {
 516         return new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder()
 517             .setL2Context(new L2BridgeDomainId(port.getNetworkId().getValue()))
 518             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 519             .setTenant(new TenantId(port.getTenantId().getValue()))
 520             .setTimestamp(System.currentTimeMillis());
 521     }
 522
 523     private static List<EndpointGroupId> resolveEpgIdsFromSecGroups(@Nullable List<Uuid> securityGroups) {
 524         List<EndpointGroupId> epgIds = new ArrayList<>();
 525         if ((securityGroups == null || securityGroups.isEmpty())) {
 526             return epgIds;
 527         }
 528         for (Uuid secGrp : securityGroups) {
 529             epgIds.add(new EndpointGroupId(secGrp.getValue()));
 530         }
 531         return epgIds;
 532     }
 533
 534     @Deprecated
 535     private void registerEndpointAndStoreMapping(
 536             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInput regEpInput,
 537             Port port, ReadWriteTransaction rwTx) {
 538         boolean isRegisteredEndpoint = epRegistrator.registerEndpoint(regEpInput);
 539         if (!isRegisteredEndpoint) {
 540             LOG.error("Failed to register endpoint: {}", regEpInput);
 541             return;
 542         }
 543         UniqueId portId = new UniqueId(port.getUuid().getValue());
 544         EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()),
 545                 new MacAddress(port.getMacAddress().getValue()));
 546         LOG.trace("Adding Port-Endpoint mapping for port {} (device owner {}) and endpoint {}",
 547                 port.getUuid().getValue(), port.getDeviceOwner(), epKey);
 548         EndpointByPort endpointByPort = MappingFactory.createEndpointByPort(epKey, portId);
 549         rwTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.endpointByPortIid(portId), endpointByPort,
 550                 true);
 551         PortByEndpoint portByEndpoint = MappingFactory.createPortByEndpoint(portId, epKey);
 552         rwTx.put(LogicalDatastoreType.OPERATIONAL,
 553                 NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), portByEndpoint,
 554                 true);
 555     }
 556
 557     @Deprecated
 558     private void unregisterEndpointAndRemoveMapping(
 559             org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput unregEpInput,
 560             Port port, ReadWriteTransaction rwTx) {
 561         boolean isUnregisteredEndpoint = epRegistrator.unregisterEndpoint(unregEpInput);
 562         if (isUnregisteredEndpoint) {
 563             UniqueId portId = new UniqueId(port.getUuid().getValue());
 564             EndpointKey epKey = new EndpointKey(new L2BridgeDomainId(port.getNetworkId().getValue()),
 565                     new MacAddress(port.getMacAddress().getValue()));
 566             LOG.trace("Removing Port-Endpoint mapping for port {} (device owner {}) and endpoint {}",
 567                     port.getUuid().getValue(), port.getDeviceOwner(), epKey);
 568             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 569                     NeutronGbpIidFactory.endpointByPortIid(portId), rwTx);
 570             DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 571                     NeutronGbpIidFactory.portByEndpointIid(epKey.getL2Context(), epKey.getMacAddress()), rwTx);
 572         }
 573     }
 574
 575     private void registerBaseEndpointAndStoreMapping(List<AddressEndpointReg> addrEpRegs, Port port,
 576             WriteTransaction wTx, boolean addBaseEpMappings) {
 577         RegisterEndpointInput regBaseEpInput =
 578                 new RegisterEndpointInputBuilder().setAddressEndpointReg(addrEpRegs).build();
 579
 580         boolean isRegisteredBaseEndpoint = epRegistrator.registerEndpoint(regBaseEpInput);
 581         if (!isRegisteredBaseEndpoint) {
 582             LOG.error("Failed to register address endpoint: {}", addrEpRegs);
 583             return;
 584         }
 585         for (AddressEndpointReg addrEpReg : addrEpRegs) {
 586             if (MappingUtils.L2_BRDIGE_DOMAIN.equals(addrEpReg.getContextType()) && addBaseEpMappings) {
 587                 UniqueId portId = new UniqueId(port.getUuid().getValue());
 588                 LOG.trace("Adding Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 589                         port.getUuid());
 590                 AddressEndpointKey addrEpKey = new AddressEndpointKey(addrEpReg.getAddress(),
 591                         addrEpReg.getAddressType(), addrEpReg.getContextId(), addrEpReg.getContextType());
 592                 addBaseEndpointMappings(addrEpKey, portId, wTx);
 593             }
 594         }
 595     }
 596
 597     private void addBaseEndpointMappings(AddressEndpointKey addrEpKey, UniqueId portId, WriteTransaction wTx) {
 598         BaseEndpointByPort baseEndpointByPort = MappingFactory.createBaseEndpointByPort(addrEpKey, portId);
 599         wTx.put(LogicalDatastoreType.OPERATIONAL, NeutronGbpIidFactory.baseEndpointByPortIid(portId),
 600                 baseEndpointByPort, true);
 601         PortByBaseEndpoint portByBaseEndpoint = MappingFactory.createPortByBaseEndpoint(portId, addrEpKey);
 602         wTx.put(LogicalDatastoreType.OPERATIONAL,
 603                 NeutronGbpIidFactory.portByBaseEndpointIid(new PortByBaseEndpointKey(portByBaseEndpoint.getKey())),
 604                 portByBaseEndpoint, true);
 605     }
 606
 607     private void unregisterEndpointAndRemoveMapping(UnregisterEndpointInput baseEpUnreg, Port port,
 608             ReadWriteTransaction rwTx, boolean removeBaseEpMappings) {
 609         boolean isUnregisteredBaseEndpoint = epRegistrator.unregisterEndpoint(baseEpUnreg);
 610         if (isUnregisteredBaseEndpoint) {
 611             UniqueId portId = new UniqueId(port.getUuid().getValue());
 612             PortByBaseEndpointKey portByBaseEndpointKey = new PortByBaseEndpointKey(port.getMacAddress().getValue(),
 613                     MacAddressType.class, new ContextId(port.getNetworkId().getValue()), MappingUtils.L2_BRDIGE_DOMAIN);
 614             LOG.trace("Removing Port-BaseEndpoint mapping for port {} (device owner {}) and endpoint {}",
 615                     port.getUuid().getValue(), port.getDeviceOwner(), portByBaseEndpointKey);
 616             if (removeBaseEpMappings) {
 617                 removeBaseEndpointMappings(portByBaseEndpointKey, portId, rwTx);
 618             }
 619         }
 620     }
 621
 622     private void removeBaseEndpointMappings(PortByBaseEndpointKey portByBaseEndpointKey, UniqueId portId,
 623             ReadWriteTransaction rwTx) {
 624         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 625                 NeutronGbpIidFactory.baseEndpointByPortIid(portId), rwTx);
 626         DataStoreHelper.removeIfExists(LogicalDatastoreType.OPERATIONAL,
 627                 NeutronGbpIidFactory.portByBaseEndpointIid(portByBaseEndpointKey), rwTx);
 628     }
 629
 630     @Override
 631     public void onUpdated(Port oldPort, Port newPort, Neutron oldNeutron, Neutron newNeutron) {
 632         LOG.trace("updated port - OLD: {}\nNEW: {}", oldPort, newPort);
 633         onDeleted(oldPort, oldNeutron, newNeutron, false);
 634         onCreated(newPort, newNeutron, false);
 635     }
 636
 637     @Override
 638     public void onDeleted(Port deletedItem, Neutron oldNeutron, Neutron newNeutron) {
 639         onDeleted(deletedItem, oldNeutron, newNeutron, true);
 640     }
 641
 642     public void onDeleted(Port port, Neutron oldNeutron, Neutron newNeutron, boolean removeBaseEpMapping) {
 643         LOG.trace("deleted port - {}", port);
 644         if (PortUtils.isRouterInterfacePort(port)) {
 645             LOG.trace("Port is router interface port: {}", port.getUuid().getValue());
 646             // router interface port can have only one IP
 647             Optional<FixedIps> potentialPortIpWithSubnet = PortUtils.resolveFirstFixedIps(port);
 648             if (!potentialPortIpWithSubnet.isPresent()) {
 649                 LOG.warn("Illegal state - router interface port does not contain fixed IPs {}", port);
 650                 return;
 651             }
 652             FixedIps portIpWithSubnet = potentialPortIpWithSubnet.get();
 653             L3ContextId l3Context = new L3ContextId(port.getNetworkId().getValue());
 654             // change L3Context for all new EPs with same subnet as router port
 655             changeL3ContextForEpsInSubnet(portIpWithSubnet.getSubnetId(), port.getNetworkId(),
 656                     new Uuid(port.getDeviceId()), newNeutron, false);
 657             // set L3Context as parent for bridge domain which is parent of subnet
 658             TenantId tenantId = new TenantId(port.getTenantId().getValue());
 659             Optional<Subnet> potentialRouterPortSubnet =
 660                     SubnetUtils.findSubnet(portIpWithSubnet.getSubnetId(), oldNeutron.getSubnets());
 661             if (!potentialRouterPortSubnet.isPresent()) {
 662                 LOG.warn("Illegal state - router interface port is in subnet which does not exist. {}", port);
 663                 return;
 664             }
 665             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 666             Subnet routerPortSubnet = potentialRouterPortSubnet.get();
 667             modifyForwardingOnDelete(routerPortSubnet, l3Context, tenantId, rwTx);
 668             ContextId l2BdId = new ContextId(routerPortSubnet.getNetworkId().getValue());
 669             ForwardingContext fwdCtx = new ForwardingContextBuilder().setContextId(l2BdId)
 670                 .setContextType(MappingUtils.L2_BRDIGE_DOMAIN)
 671                 .setParent(MappingUtils.createParent(l3Context, MappingUtils.L3_CONTEXT))
 672                 .build();
 673             rwTx.merge(LogicalDatastoreType.CONFIGURATION,
 674                     L2L3IidFactory.l2BridgeDomainIid(tenantId, fwdCtx.getContextId()), fwdCtx);
 675             NetworkDomain subnet = NeutronSubnetAware.createSubnet(routerPortSubnet, newNeutron, null);
 676             rwTx.put(LogicalDatastoreType.CONFIGURATION,
 677                     L2L3IidFactory.subnetIid(tenantId, subnet.getNetworkDomainId()), subnet);
 678             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 679             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 680                     removeBaseEpMapping);
 681             DataStoreHelper.submitToDs(rwTx);
 682         } else if (PortUtils.isDhcpPort(port)) {
 683             LOG.trace("Port is DHCP port: {}", port.getUuid().getValue());
 684             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 685             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 686             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 687                     removeBaseEpMapping);
 688             DataStoreHelper.submitToDs(rwTx);
 689             if (!oldNeutron.getPorts()
 690                 .getPort()
 691                 .stream()
 692                 .filter(PortUtils::isDhcpPort)
 693                 .anyMatch(p -> !p.getUuid().equals(port.getUuid()))) {
 694                 Port metadataPort = cloneMetadataPortFromDhcpPort(port, metadataIpPrefix);
 695                 if (PortUtils.resolveFirstFixedIps(metadataPort).isPresent()) {
 696                     ContextId metadataCtx = resolveL3ContextForPort(metadataPort,
 697                             PortUtils.resolveFirstFixedIps(metadataPort).get(), oldNeutron);
 698                     AddressEndpointUnregBuilder metadataEpUnreg =
 699                             new AddressEndpointUnregBuilder().setAddress(String.valueOf(metadataIpPrefix.getValue()))
 700                                 .setAddressType(IpPrefixType.class)
 701                                 .setContextType(MappingUtils.L3_CONTEXT)
 702                                 .setContextId(metadataCtx);
 703                     epRegistrator.unregisterEndpoint(metadataEpUnreg.build());
 704                 }
 705             }
 706         } else if (PortUtils.isNormalPort(port)) {
 707             LOG.trace("Port is normal port: {}", port.getUuid().getValue());
 708             ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 709             unregisterEndpointAndRemoveMapping(createUnregisterEndpointInput(port, oldNeutron), port, rwTx);
 710             unregisterEndpointAndRemoveMapping(createUnregisterBaseEndpointInput(port, oldNeutron), port, rwTx,
 711                     removeBaseEpMapping);
 712             DataStoreHelper.submitToDs(rwTx);
 713         } else if (PortUtils.isRouterGatewayPort(port)) {
 714             // do nothing because actual trigger is detaching of port from router
 715             LOG.trace("Port is router gateway port: {}", port.getUuid().getValue());
 716         } else if (PortUtils.isFloatingIpPort(port)) {
 717             // do nothing because trigger is floating IP
 718             LOG.trace("Port is floating ip: {}", port.getUuid().getValue());
 719         } else {
 720             LOG.warn("Unknown port: {}", port);
 721         }
 722     }
 723
 724     @Deprecated
 725     private void modifyForwardingOnDelete(Subnet routerPortSubnet, L3ContextId l3contextId, TenantId tenantId,
 726             ReadWriteTransaction rwTx) {
 727         L2BridgeDomainId l2BdId = new L2BridgeDomainId(routerPortSubnet.getNetworkId().getValue());
 728         L2BridgeDomain l2Bd = new L2BridgeDomainBuilder().setId(l2BdId).setParent(l3contextId).build();
 729         rwTx.merge(LogicalDatastoreType.CONFIGURATION, IidFactory.l2BridgeDomainIid(tenantId, l2BdId), l2Bd);
 730         // remove virtual router IP for subnet
 731         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.forwarding.context.Subnet tenantSubnet =
 732                 NeutronSubnetAware.createTenantSubnet(routerPortSubnet, null);
 733         rwTx.put(LogicalDatastoreType.CONFIGURATION, IidFactory.subnetIid(tenantId, tenantSubnet.getId()),
 734                 tenantSubnet);
 735     }
 736
 737     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.base_endpoint.rev160427.UnregisterEndpointInput createUnregisterBaseEndpointInput(
 738             Port port, Neutron neutron) {
 739         UnregisterEndpointInputBuilder inputBuilder = new UnregisterEndpointInputBuilder();
 740         List<AddressEndpointUnreg> list = new ArrayList<>();
 741         AddressEndpointUnregBuilder addrL2EpUnregBuilder = new AddressEndpointUnregBuilder();
 742         addrL2EpUnregBuilder.setAddress(port.getMacAddress().getValue())
 743             .setAddressType(MacAddressType.class)
 744             .setContextId(new ContextId(port.getNetworkId().getValue()))
 745             .setContextType(MappingUtils.L2_BRDIGE_DOMAIN);
 746         list.add(addrL2EpUnregBuilder.build());
 747         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 748         if (potentialFirstIp.isPresent()) {
 749             ContextId l3ContextId = resolveL3ContextForPort(port, potentialFirstIp.get(), neutron);
 750             AddressEndpointUnregBuilder addrL3EpUnregBuilder = new AddressEndpointUnregBuilder();
 751             addrL3EpUnregBuilder
 752                 .setAddress(MappingUtils.ipAddressToStringIpPrefix(potentialFirstIp.get().getIpAddress()))
 753                 .setAddressType(IpPrefixType.class)
 754                 .setContextId(l3ContextId)
 755                 .setContextType(L3Context.class);
 756             list.add(addrL3EpUnregBuilder.build());
 757         }
 758         inputBuilder.setAddressEndpointUnreg(list);
 759         return inputBuilder.build();
 760     }
 761
 762     @Deprecated
 763     private org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput createUnregisterEndpointInput(
 764             Port port, Neutron neutron) {
 765         org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder inputBuilder =
 766                 new org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder();
 767         L2 l2Ep = new L2Builder().setL2Context(new L2BridgeDomainId(port.getNetworkId().getValue()))
 768             .setMacAddress(new MacAddress(port.getMacAddress().getValue()))
 769             .build();
 770         inputBuilder.setL2(ImmutableList.of(l2Ep));
 771         // we've registered EP with only first IP so remove only EP with first IP
 772         Optional<FixedIps> potentialFirstIp = PortUtils.resolveFirstFixedIps(port);
 773         if (potentialFirstIp.isPresent()) {
 774             FixedIps firstIp = potentialFirstIp.get();
 775             L3Address l3Address = resolveL3AddressFromPort(port, firstIp, neutron);
 776             L3 l3 = new L3Builder().setIpAddress(l3Address.getIpAddress())
 777                 .setL3Context(l3Address.getL3Context())
 778                 .build();
 779             inputBuilder.setL3(ImmutableList.of(l3));
 780         }
 781         return inputBuilder.build();
 782     }
 783
 784     @Deprecated
 785     private static L3Address resolveL3AddressFromPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 786         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 787         for (Port routerIfacePort : routerIfacePorts) {
 788             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 789             // if port is in the same subnet as router interface then we want to use L3Context of
 790             // router
 791             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 792                 L3ContextId epL3ContextId = new L3ContextId(routerIfacePort.getDeviceId());
 793                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 794                 return new L3AddressBuilder().setL3Context(epL3ContextId)
 795                     .setIpAddress(portFixedIPs.getIpAddress())
 796                     .build();
 797             }
 798         }
 799         return new L3AddressBuilder().setL3Context(new L3ContextId(port.getNetworkId().getValue()))
 800             .setIpAddress(portFixedIPs.getIpAddress())
 801             .build();
 802     }
 803
 804     private static ContextId resolveL3ContextForPort(Port port, FixedIps portFixedIPs, Neutron neutron) {
 805         Set<Port> routerIfacePorts = PortUtils.findRouterInterfacePorts(neutron.getPorts());
 806         for (Port routerIfacePort : routerIfacePorts) {
 807             Uuid routerIfacePortSubnet = routerIfacePort.getFixedIps().get(0).getSubnetId();
 808             // if port is in the same subnet as router interface then we want to use L3Context of
 809             // router
 810             if (portFixedIPs.getSubnetId().equals(routerIfacePortSubnet)) {
 811                 LOG.trace("Router interface port was found in the same subnet as port have {}", port);
 812                 return new ContextId(routerIfacePort.getDeviceId());
 813             }
 814         }
 815         return new ContextId(port.getNetworkId().getValue());
 816     }
 817 }