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.Collection;
  14 import java.util.HashSet;
  15 import java.util.List;
  16 import java.util.Set;
  17 import java.util.concurrent.ExecutionException;
  18
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  21 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
  22 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  23 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  24 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.DataStoreHelper;
  25 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.IidFactory;
  26 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils;
  27 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.MappingUtils.ForwardingCtx;
  28 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.NeutronUtils;
  29 import org.opendaylight.groupbasedpolicy.neutron.mapper.util.Utils;
  30 import org.opendaylight.neutron.spi.INeutronPortAware;
  31 import org.opendaylight.neutron.spi.NeutronPort;
  32 import org.opendaylight.neutron.spi.NeutronRouter;
  33 import org.opendaylight.neutron.spi.NeutronRouter_Interface;
  34 import org.opendaylight.neutron.spi.NeutronSecurityGroup;
  35 import org.opendaylight.neutron.spi.NeutronSecurityRule;
  36 import org.opendaylight.neutron.spi.Neutron_IPs;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.EndpointGroupId;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L2FloodDomainId;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.L3ContextId;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.Name;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.SubnetId;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.EndpointService;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInput;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.RegisterEndpointInputBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInput;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.UnregisterEndpointInputBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3Address;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoint.fields.L3AddressBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.EndpointKey;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L2Builder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.unregister.endpoint.input.L3Builder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContextInput;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContextInputBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroup;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.Subnet;
  62 import org.opendaylight.yangtools.yang.common.RpcResult;
  63 import org.slf4j.Logger;
  64 import org.slf4j.LoggerFactory;
  65
  66 import com.google.common.base.Function;
  67 import com.google.common.base.Optional;
  68 import com.google.common.base.Strings;
  69 import com.google.common.collect.Collections2;
  70 import com.google.common.collect.ImmutableList;
  71
  72 public class NeutronPortAware implements INeutronPortAware {
  73
  74     public static final Logger LOG = LoggerFactory.getLogger(NeutronPortAware.class);
  75     private static final String DEVICE_OWNER_DHCP = "network:dhcp";
  76     private static final String DEVICE_OWNER_ROUTER_IFACE = "network:router_interface";
  77     private static final int DHCP_CLIENT_PORT = 68;
  78     private static final int DHCP_SERVER_PORT = 67;
  79     private final DataBroker dataProvider;
  80     private final EndpointService epService;
  81
  82     public NeutronPortAware(DataBroker dataProvider, EndpointService epService) {
  83         this.dataProvider = checkNotNull(dataProvider);
  84         this.epService = checkNotNull(epService);
  85     }
  86
  87     /**
  88      * @see org.opendaylight.neutron.spi.INeutronPortAware#canCreatePort(org.opendaylight.neutron.spi.NeutronPort)
  89      */
  90     @Override
  91     public int canCreatePort(NeutronPort port) {
  92         LOG.trace("canCreatePort - {}", port);
  93         // TODO Li msunal this has to be rewrite when OFOverlay renderer will support l3-endpoints.
  94         List<Neutron_IPs> fixedIPs = port.getFixedIPs();
  95         if (fixedIPs != null && fixedIPs.size() > 1) {
  96             LOG.warn("Neutron mapper does not support multiple IPs on the same port.");
  97             return StatusCode.BAD_REQUEST;
  98         }
  99         return StatusCode.OK;
 100     }
 101
 102     /**
 103      * @see org.opendaylight.neutron.spi.INeutronPortAware#neutronPortCreated(org.opendaylight.neutron.spi.NeutronPort)
 104      */
 105     @Override
 106     public void neutronPortCreated(NeutronPort port) {
 107         LOG.trace("neutronPortCreated - {}", port);
 108         if (isRouterInterfacePort(port)) {
 109             LOG.trace("Port is router interface.");
 110             NeutronRouter neutronRouter = createRouter(port);
 111             NeutronRouter_Interface routerIface = createRouterInterface(port);
 112             int canAttachInterface = NeutronRouterAware.getInstance().canAttachInterface(neutronRouter, routerIface);
 113             if (canAttachInterface == StatusCode.OK) {
 114                 NeutronRouterAware.getInstance().neutronRouterInterfaceAttached(neutronRouter, routerIface);
 115             }
 116             return;
 117         }
 118
 119         ReadWriteTransaction rwTx = dataProvider.newReadWriteTransaction();
 120         TenantId tenantId = new TenantId(Utils.normalizeUuid(port.getTenantID()));
 121
 122         if (isDhcpPort(port)) {
 123             LOG.trace("Port is DHCP port.");
 124             List<NeutronSecurityRule> dhcpSecRules = createDhcpSecRules(port, null, rwTx);
 125             if (dhcpSecRules == null) {
 126                 rwTx.cancel();
 127                 return;
 128             }
 129
 130             for (NeutronSecurityRule dhcpSecRule : dhcpSecRules) {
 131                 boolean isDhcpSecRuleAdded = NeutronSecurityRuleAware.addNeutronSecurityRule(dhcpSecRule, rwTx);
 132                 if (!isDhcpSecRuleAdded) {
 133                     rwTx.cancel();
 134                     return;
 135                 }
 136             }
 137         } else {
 138             List<NeutronSecurityGroup> secGroups = port.getSecurityGroups();
 139             if (secGroups != null) {
 140                 for (NeutronSecurityGroup secGroup : secGroups) {
 141                     EndpointGroupId epgId = new EndpointGroupId(secGroup.getSecurityGroupUUID());
 142                     Optional<EndpointGroup> potentialEpg = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,
 143                             IidFactory.endpointGroupIid(tenantId, epgId), rwTx);
 144                     if (!potentialEpg.isPresent()) {
 145                         boolean isSecGroupCreated = NeutronSecurityGroupAware.addNeutronSecurityGroup(secGroup, rwTx);
 146                         if (!isSecGroupCreated) {
 147                             rwTx.cancel();
 148                             return;
 149                         }
 150                         if (containsSecRuleWithRemoteSecGroup(secGroup)) {
 151                             List<NeutronSecurityRule> dhcpSecRules = createDhcpSecRules(port, epgId, rwTx);
 152                             if (dhcpSecRules == null) {
 153                                 rwTx.cancel();
 154                                 return;
 155                             }
 156                             List<NeutronSecurityRule> routerSecRules = NeutronRouterAware.createRouterSecRules(port, epgId, rwTx);
 157                             if (routerSecRules == null) {
 158                                 rwTx.cancel();
 159                                 return;
 160                             }
 161                         }
 162                     } else {
 163                         List<NeutronSecurityRule> secRules = secGroup.getSecurityRules();
 164                         if (secRules != null) {
 165                             for (NeutronSecurityRule secRule : secRules) {
 166                                 NeutronSecurityRuleAware.addNeutronSecurityRule(secRule, rwTx);
 167                             }
 168                         }
 169                     }
 170                 }
 171             }
 172         }
 173
 174         boolean isNeutronPortCreated = addNeutronPort(port, rwTx, epService);
 175         if (!isNeutronPortCreated) {
 176             rwTx.cancel();
 177             return;
 178         }
 179
 180         DataStoreHelper.submitToDs(rwTx);
 181     }
 182
 183     private static NeutronRouter createRouter(NeutronPort port) {
 184         NeutronRouter neutronRouter = new NeutronRouter();
 185         neutronRouter.setRouterUUID(port.getDeviceID());
 186         neutronRouter.setTenantID(port.getTenantID());
 187         neutronRouter.setName("Router_port__" + Strings.nullToEmpty(port.getName()));
 188         return neutronRouter;
 189     }
 190
 191     private static NeutronRouter_Interface createRouterInterface(NeutronPort port) {
 192         Neutron_IPs firstIp = MappingUtils.getFirstIp(port.getFixedIPs());
 193         if (firstIp == null) {
 194             throw new IllegalStateException("Illegal state - Port " + port.getID() + " representing router interface does not have an IP.");
 195         }
 196         NeutronRouter_Interface routerIface = new NeutronRouter_Interface(firstIp.getSubnetUUID(), port.getID());
 197         routerIface.setTenantID(port.getTenantID());
 198         return routerIface;
 199     }
 200
 201     public static boolean addNeutronPort(NeutronPort port, ReadWriteTransaction rwTx, EndpointService epService) {
 202         TenantId tenantId = new TenantId(Utils.normalizeUuid(port.getTenantID()));
 203         L2FloodDomainId l2FdId = new L2FloodDomainId(port.getNetworkUUID());
 204         ForwardingCtx fwCtx = MappingUtils.createForwardingContext(tenantId, l2FdId, rwTx);
 205         boolean isFwCtxValid = validateForwardingCtx(fwCtx);
 206         if (!isFwCtxValid) {
 207             return false;
 208         }
 209
 210         try {
 211             RegisterEndpointInput registerEpRpcInput = createRegisterEndpointInput(port, fwCtx);
 212             RpcResult<Void> rpcResult = epService.registerEndpoint(registerEpRpcInput).get();
 213             if (!rpcResult.isSuccessful()) {
 214                 LOG.warn("Illegal state - RPC registerEndpoint failed. Input of RPC: {}", registerEpRpcInput);
 215                 return false;
 216             }
 217         } catch (InterruptedException | ExecutionException e) {
 218             LOG.error("addPort - RPC invocation failed.", e);
 219             return false;
 220         }
 221         return true;
 222     }
 223
 224     private static boolean validateForwardingCtx(ForwardingCtx fwCtx) {
 225         if (fwCtx.getL2FloodDomain() == null) {
 226             LOG.warn("Illegal state - l2-flood-domain does not exist.");
 227             return false;
 228         }
 229         if (fwCtx.getL2BridgeDomain() == null) {
 230             LOG.warn("Illegal state - l2-bridge-domain does not exist.");
 231             return false;
 232         }
 233         if (fwCtx.getL3Context() == null) {
 234             LOG.warn("Illegal state - l3-context does not exist.");
 235             return false;
 236         }
 237         return true;
 238     }
 239
 240     private List<NeutronSecurityRule> createDhcpSecRules(NeutronPort port, EndpointGroupId consumerEpgId, ReadTransaction rTx) {
 241         TenantId tenantId = new TenantId(Utils.normalizeUuid(port.getTenantID()));
 242         Neutron_IPs firstIp = MappingUtils.getFirstIp(port.getFixedIPs());
 243         if (firstIp == null) {
 244             LOG.warn("Illegal state - DHCP port does not have an IP address.");
 245             return null;
 246         }
 247         SubnetId dhcpSubnetId = new SubnetId(firstIp.getSubnetUUID());
 248         Optional<Subnet> potentialSubnet = DataStoreHelper.readFromDs(LogicalDatastoreType.CONFIGURATION,
 249                 IidFactory.subnetIid(tenantId, dhcpSubnetId), rTx);
 250         if (!potentialSubnet.isPresent()) {
 251             LOG.warn("Illegal state - Subnet {} where is DHCP port does not exist.", dhcpSubnetId.getValue());
 252             return null;
 253         }
 254         IpPrefix ipSubnet = potentialSubnet.get().getIpPrefix();
 255         NeutronSecurityRule dhcpRuleEgress = createDhcpSecRule(port.getID(), tenantId, ipSubnet, consumerEpgId, true);
 256         NeutronSecurityRule dhcpRuleIngress = createDhcpSecRule(port.getID(), tenantId, ipSubnet, consumerEpgId, false);
 257         return ImmutableList.of(dhcpRuleEgress, dhcpRuleIngress);
 258     }
 259
 260     private NeutronSecurityRule createDhcpSecRule(String ruleUuid, TenantId tenantId, IpPrefix ipSubnet, EndpointGroupId consumerEpgId,
 261             boolean isEgress) {
 262         NeutronSecurityRule dhcpSecRule = new NeutronSecurityRule();
 263         dhcpSecRule.setSecurityRuleGroupID(MappingUtils.EPG_DHCP_ID.getValue());
 264         dhcpSecRule.setSecurityRuleTenantID(tenantId.getValue());
 265         dhcpSecRule.setSecurityRuleRemoteIpPrefix(Utils.getStringIpPrefix(ipSubnet));
 266         if (consumerEpgId != null) {
 267             dhcpSecRule.setSecurityRemoteGroupID(consumerEpgId.getValue());
 268         }
 269         if (isEgress) {
 270             dhcpSecRule.setSecurityRuleUUID(NeutronUtils.EGRESS + "__" + ruleUuid);
 271             dhcpSecRule.setSecurityRuleDirection(NeutronUtils.EGRESS);
 272             dhcpSecRule.setSecurityRulePortMin(DHCP_CLIENT_PORT);
 273             dhcpSecRule.setSecurityRulePortMax(DHCP_CLIENT_PORT);
 274         } else {
 275             dhcpSecRule.setSecurityRuleUUID(NeutronUtils.INGRESS + "__" + ruleUuid);
 276             dhcpSecRule.setSecurityRuleDirection(NeutronUtils.INGRESS);
 277             dhcpSecRule.setSecurityRulePortMin(DHCP_SERVER_PORT);
 278             dhcpSecRule.setSecurityRulePortMax(DHCP_SERVER_PORT);
 279         }
 280         dhcpSecRule.setSecurityRuleProtocol(NeutronUtils.UDP);
 281         if (ipSubnet.getIpv4Prefix() != null) {
 282             dhcpSecRule.setSecurityRuleEthertype(NeutronUtils.IPv4);
 283         } else {
 284             dhcpSecRule.setSecurityRuleEthertype(NeutronUtils.IPv6);
 285         }
 286         return dhcpSecRule;
 287     }
 288
 289     /**
 290      * @see org.opendaylight.neutron.spi.INeutronPortAware#canUpdatePort(org.opendaylight.neutron.spi.NeutronPort,
 291      *      org.opendaylight.neutron.spi.NeutronPort)
 292      */
 293     @Override
 294     public int canUpdatePort(NeutronPort delta, NeutronPort original) {
 295         LOG.trace("canUpdatePort - delta: {} original: {}", delta, original);
 296         if (delta.getFixedIPs() == null || delta.getFixedIPs().isEmpty()) {
 297             return StatusCode.OK;
 298         }
 299         // TODO Li msunal this has to be rewrite when OFOverlay renderer will support l3-endpoints.
 300         List<Neutron_IPs> fixedIPs = delta.getFixedIPs();
 301         if (fixedIPs != null && fixedIPs.size() > 1) {
 302             LOG.warn("Neutron mapper does not support multiple IPs on the same port.");
 303             return StatusCode.BAD_REQUEST;
 304         }
 305         return StatusCode.OK;
 306     }
 307
 308     /**
 309      * @see org.opendaylight.neutron.spi.INeutronPortAware#neutronPortUpdated(org.opendaylight.neutron.spi.NeutronPort)
 310      */
 311     @Override
 312     public void neutronPortUpdated(NeutronPort port) {
 313         LOG.trace("neutronPortUpdated - {}", port);
 314         if (isRouterInterfacePort(port)) {
 315             LOG.trace("Port is router interface - do nothing - NeutronRouterAware handles router iface");
 316             return;
 317         }
 318         ReadOnlyTransaction rTx = dataProvider.newReadOnlyTransaction();
 319         TenantId tenantId = new TenantId(Utils.normalizeUuid(port.getTenantID()));
 320         MacAddress macAddress = new MacAddress(port.getMacAddress());
 321         L2FloodDomainId l2FdId = new L2FloodDomainId(port.getNetworkUUID());
 322         ForwardingCtx fwCtx = MappingUtils.createForwardingContext(tenantId, l2FdId, rTx);
 323         boolean isFwCtxValid = validateForwardingCtx(fwCtx);
 324         if (!isFwCtxValid) {
 325             rTx.close();
 326             return;
 327         }
 328
 329         Optional<Endpoint> potentionalEp = DataStoreHelper.readFromDs(LogicalDatastoreType.OPERATIONAL,
 330                 IidFactory.endpointIid(fwCtx.getL2BridgeDomain().getId(), macAddress), rTx);
 331         if (!potentionalEp.isPresent()) {
 332             LOG.warn("Illegal state - endpoint {} does not exist.", new EndpointKey(fwCtx.getL2BridgeDomain().getId(),
 333                     macAddress));
 334             rTx.close();
 335             return;
 336         }
 337
 338         Endpoint ep = potentionalEp.get();
 339         if (isEpIpDifferentThanPortFixedIp(ep, port) || isEpgDifferentThanSecGrp(ep, port)) {
 340             UnregisterEndpointInput unregisterEpRpcInput = createUnregisterEndpointInput(ep);
 341             RegisterEndpointInput registerEpRpcInput = createRegisterEndpointInput(port, fwCtx);
 342             try {
 343                 RpcResult<Void> rpcResult = epService.unregisterEndpoint(unregisterEpRpcInput).get();
 344                 if (!rpcResult.isSuccessful()) {
 345                     LOG.warn("Illegal state - RPC unregisterEndpoint failed. Input of RPC: {}", unregisterEpRpcInput);
 346                     rTx.close();
 347                     return;
 348                 }
 349                 rpcResult = epService.registerEndpoint(registerEpRpcInput).get();
 350                 if (!rpcResult.isSuccessful()) {
 351                     LOG.warn("Illegal state - RPC registerEndpoint failed. Input of RPC: {}", registerEpRpcInput);
 352                     rTx.close();
 353                     return;
 354                 }
 355             } catch (InterruptedException | ExecutionException e) {
 356                 LOG.error("addPort - RPC invocation failed.", e);
 357                 rTx.close();
 358                 return;
 359             }
 360         }
 361         rTx.close();
 362     }
 363
 364     private boolean isEpIpDifferentThanPortFixedIp(Endpoint ep, NeutronPort port) {
 365         List<L3Address> l3Addresses = ep.getL3Address();
 366         List<Neutron_IPs> fixedIPs = port.getFixedIPs();
 367         if ((l3Addresses == null || l3Addresses.isEmpty()) && (fixedIPs == null || fixedIPs.isEmpty())) {
 368             return false;
 369         }
 370         if (l3Addresses != null && !l3Addresses.isEmpty() && fixedIPs != null && !fixedIPs.isEmpty()) {
 371             if (fixedIPs.get(0).getIpAddress().equals(Utils.getStringIpAddress(l3Addresses.get(0).getIpAddress()))) {
 372                 return false;
 373             }
 374         }
 375         return true;
 376     }
 377
 378     private boolean isEpgDifferentThanSecGrp(Endpoint ep, NeutronPort port) {
 379         List<EndpointGroupId> epgIds = ep.getEndpointGroups();
 380         List<NeutronSecurityGroup> secGroups = port.getSecurityGroups();
 381         if ((epgIds == null || epgIds.isEmpty()) && (secGroups == null || secGroups.isEmpty())) {
 382             return false;
 383         }
 384         if (epgIds != null && !epgIds.isEmpty() && secGroups != null && !secGroups.isEmpty()) {
 385             if (epgIds.size() != secGroups.size()) {
 386                 return true;
 387             }
 388             Collection<EndpointGroupId> epgIdsFromSecGroups = Collections2.transform(secGroups,
 389                     new Function<NeutronSecurityGroup, EndpointGroupId>() {
 390
 391                         @Override
 392                         public EndpointGroupId apply(NeutronSecurityGroup input) {
 393                             return new EndpointGroupId(input.getSecurityGroupUUID());
 394                         }
 395                     });
 396             // order independent equals
 397             Set<EndpointGroupId> one = new HashSet<>(epgIds);
 398             Set<EndpointGroupId> two = new HashSet<>(epgIdsFromSecGroups);
 399             if (one.equals(two)) {
 400                 return false;
 401             }
 402         }
 403         return true;
 404     }
 405
 406     /**
 407      * @see org.opendaylight.neutron.spi.INeutronPortAware#canDeletePort(org.opendaylight.neutron.spi.NeutronPort)
 408      */
 409     @Override
 410     public int canDeletePort(NeutronPort port) {
 411         LOG.trace("canDeletePort - {}", port);
 412         // nothing to consider
 413         return StatusCode.OK;
 414     }
 415
 416     /**
 417      * @see org.opendaylight.neutron.spi.INeutronPortAware#neutronPortDeleted(org.opendaylight.neutron.spi.NeutronPort)
 418      */
 419     @Override
 420     public void neutronPortDeleted(NeutronPort port) {
 421         LOG.trace("neutronPortDeleted - {}", port);
 422         if (isRouterInterfacePort(port)) {
 423             LOG.trace("Port is router interface - do nothing - NeutronRouterAware handles router iface");
 424             return;
 425         }
 426         ReadOnlyTransaction rTx = dataProvider.newReadOnlyTransaction();
 427         TenantId tenantId = new TenantId(Utils.normalizeUuid(port.getTenantID()));
 428         L2FloodDomainId l2FdId = new L2FloodDomainId(port.getNetworkUUID());
 429         ForwardingCtx fwCtx = MappingUtils.createForwardingContext(tenantId, l2FdId, rTx);
 430         boolean isFwCtxValid = validateForwardingCtx(fwCtx);
 431         if (!isFwCtxValid) {
 432             rTx.close();
 433             return;
 434         }
 435
 436         UnregisterEndpointInput unregisterEpRpcInput = createUnregisterEndpointInput(port, fwCtx);
 437         try {
 438             RpcResult<Void> rpcResult = epService.unregisterEndpoint(unregisterEpRpcInput).get();
 439             if (!rpcResult.isSuccessful()) {
 440                 LOG.warn("Illegal state - RPC unregisterEndpoint failed. Input of RPC: {}", unregisterEpRpcInput);
 441             }
 442         } catch (InterruptedException | ExecutionException e) {
 443             LOG.error("addPort - RPC invocation failed.", e);
 444         } finally {
 445             rTx.close();
 446         }
 447     }
 448
 449     private static RegisterEndpointInput createRegisterEndpointInput(NeutronPort port, ForwardingCtx fwCtx) {
 450         List<EndpointGroupId> epgIds = new ArrayList<>();
 451         // each EP has to be in EPG ANY, except dhcp and router
 452         if (isDhcpPort(port)) {
 453             epgIds.add(MappingUtils.EPG_DHCP_ID);
 454         } else if (isRouterInterfacePort(port)) {
 455             epgIds.add(MappingUtils.EPG_ROUTER_ID);
 456         } else if (!containsSecRuleWithRemoteSecGroup(port.getSecurityGroups())) {
 457             epgIds.add(MappingUtils.EPG_ANY_ID);
 458         }
 459
 460         List<NeutronSecurityGroup> securityGroups = port.getSecurityGroups();
 461         if ((securityGroups == null || securityGroups.isEmpty())) {
 462             if (!isDhcpPort(port) && !isRouterInterfacePort(port)) {
 463                 LOG.warn(
 464                         "Port {} does not contain any security group. The port should belong to 'default' security group at least.",
 465                         port.getPortUUID());
 466             }
 467         } else {
 468             for (NeutronSecurityGroup secGrp : securityGroups) {
 469                 epgIds.add(new EndpointGroupId(secGrp.getSecurityGroupUUID()));
 470             }
 471         }
 472         RegisterEndpointInputBuilder inputBuilder = new RegisterEndpointInputBuilder().setL2Context(
 473                 fwCtx.getL2BridgeDomain().getId())
 474             .setMacAddress(new MacAddress(port.getMacAddress()))
 475             .setTenant(new TenantId(Utils.normalizeUuid(port.getTenantID())))
 476             .setEndpointGroups(epgIds)
 477             .addAugmentation(OfOverlayContextInput.class,
 478                     new OfOverlayContextInputBuilder().setPortName(createTapPortName(port)).build())
 479             .setTimestamp(System.currentTimeMillis());
 480         List<Neutron_IPs> fixedIPs = port.getFixedIPs();
 481         // TODO Li msunal this getting of just first IP has to be rewrite when OFOverlay renderer
 482         // will support l3-endpoints. Then we will register L2 and L3 endpoints separately.
 483         Neutron_IPs firstIp = MappingUtils.getFirstIp(fixedIPs);
 484         if (firstIp != null) {
 485             inputBuilder.setNetworkContainment(new SubnetId(firstIp.getSubnetUUID()));
 486             L3Address l3Address = new L3AddressBuilder().setIpAddress(Utils.createIpAddress(firstIp.getIpAddress()))
 487                 .setL3Context(fwCtx.getL3Context().getId())
 488                 .build();
 489             inputBuilder.setL3Address(ImmutableList.of(l3Address));
 490         }
 491         if (!Strings.isNullOrEmpty(port.getName())) {
 492
 493         }
 494         return inputBuilder.build();
 495     }
 496
 497     private static boolean containsSecRuleWithRemoteSecGroup(List<NeutronSecurityGroup> secGroups) {
 498         if (secGroups == null) {
 499             return false;
 500         }
 501         for (NeutronSecurityGroup secGroup : secGroups) {
 502             boolean containsSecRuleWithRemoteSecGroup = containsSecRuleWithRemoteSecGroup(secGroup);
 503             if (containsSecRuleWithRemoteSecGroup) {
 504                 return true;
 505             }
 506         }
 507         return false;
 508     }
 509
 510     private static boolean containsSecRuleWithRemoteSecGroup(NeutronSecurityGroup secGroup) {
 511         List<NeutronSecurityRule> secRules = secGroup.getSecurityRules();
 512         if (secRules == null) {
 513             return false;
 514         }
 515         for (NeutronSecurityRule secRule : secRules) {
 516             if (!Strings.isNullOrEmpty(secRule.getSecurityRemoteGroupID())) {
 517                 return true;
 518             }
 519         }
 520         return false;
 521     }
 522
 523     private static Name createTapPortName(NeutronPort port) {
 524         return new Name("tap" + port.getID().substring(0, 11));
 525     }
 526
 527     private static boolean isDhcpPort(NeutronPort port) {
 528         return DEVICE_OWNER_DHCP.equals(port.getDeviceOwner());
 529     }
 530
 531     private static boolean isRouterInterfacePort(NeutronPort port) {
 532         return DEVICE_OWNER_ROUTER_IFACE.equals(port.getDeviceOwner());
 533     }
 534
 535     private UnregisterEndpointInput createUnregisterEndpointInput(Endpoint ep) {
 536         UnregisterEndpointInputBuilder inputBuilder = new UnregisterEndpointInputBuilder();
 537         L2 l2Ep = new L2Builder().setL2Context(ep.getL2Context()).setMacAddress(ep.getMacAddress()).build();
 538         inputBuilder.setL2(ImmutableList.of(l2Ep));
 539         // TODO Li msunal this has to be rewrite when OFOverlay renderer will support l3-endpoints.
 540         // Endpoint probably will not have l3-addresses anymore, because L2 and L3 endpoints should
 541         // be registered separately.
 542         if (ep.getL3Address() != null && !ep.getL3Address().isEmpty()) {
 543             List<L3> l3Eps = new ArrayList<>();
 544             for (L3Address ip : ep.getL3Address()) {
 545                 l3Eps.add(new L3Builder().setL3Context(ip.getL3Context()).setIpAddress(ip.getIpAddress()).build());
 546             }
 547             inputBuilder.setL3(l3Eps);
 548         }
 549         return inputBuilder.build();
 550     }
 551
 552     private UnregisterEndpointInput createUnregisterEndpointInput(NeutronPort port, ForwardingCtx fwCtx) {
 553         UnregisterEndpointInputBuilder inputBuilder = new UnregisterEndpointInputBuilder();
 554         L2 l2Ep = new L2Builder().setL2Context(fwCtx.getL2BridgeDomain().getId())
 555             .setMacAddress(new MacAddress(port.getMacAddress()))
 556             .build();
 557         inputBuilder.setL2(ImmutableList.of(l2Ep));
 558         // TODO Li msunal this has to be rewrite when OFOverlay renderer will support l3-endpoints.
 559         // Endpoint probably will not have l3-addresses anymore, because L2 and L3 endpoints should
 560         // be registered separately.
 561         if (port.getFixedIPs() != null && !port.getFixedIPs().isEmpty()) {
 562             inputBuilder.setL3(createL3s(port.getFixedIPs(), fwCtx.getL3Context().getId()));
 563         }
 564         return inputBuilder.build();
 565     }
 566
 567     private List<L3> createL3s(List<Neutron_IPs> neutronIps, L3ContextId l3ContextId) {
 568         List<L3> l3s = new ArrayList<>();
 569         for (Neutron_IPs fixedIp : neutronIps) {
 570             String ip = fixedIp.getIpAddress();
 571             L3 l3 = new L3Builder().setIpAddress(Utils.createIpAddress(ip)).setL3Context(l3ContextId).build();
 572             l3s.add(l3);
 573         }
 574         return l3s;
 575     }
 576
 577 }