mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/LispMappingService.java

   1 /*
   2  * Copyright (c) 2014 Contextream, 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.lispflowmapping.implementation;
   9
  10 import com.google.common.annotations.VisibleForTesting;
  11 import com.google.common.util.concurrent.Futures;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.List;
  14 import java.util.Set;
  15 import javax.annotation.PreDestroy;
  16 import javax.inject.Inject;
  17 import javax.inject.Singleton;
  18 import org.apache.commons.lang3.tuple.MutablePair;
  19 import org.apache.commons.lang3.tuple.Pair;
  20 import org.opendaylight.lispflowmapping.config.ConfigIni;
  21 import org.opendaylight.lispflowmapping.implementation.lisp.MapResolver;
  22 import org.opendaylight.lispflowmapping.implementation.lisp.MapServer;
  23 import org.opendaylight.lispflowmapping.implementation.util.LispNotificationHelper;
  24 import org.opendaylight.lispflowmapping.interfaces.lisp.IFlowMapping;
  25 import org.opendaylight.lispflowmapping.interfaces.lisp.IMapNotifyHandler;
  26 import org.opendaylight.lispflowmapping.interfaces.lisp.IMapRequestResultHandler;
  27 import org.opendaylight.lispflowmapping.interfaces.lisp.IMapResolverAsync;
  28 import org.opendaylight.lispflowmapping.interfaces.lisp.ISmrNotificationListener;
  29 import org.opendaylight.lispflowmapping.interfaces.mappingservice.IMappingService;
  30 import org.opendaylight.lispflowmapping.lisp.type.LispMessage;
  31 import org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier;
  32 import org.opendaylight.mdsal.binding.api.NotificationService;
  33 import org.opendaylight.mdsal.binding.api.NotificationService.CompositeListener;
  34 import org.opendaylight.mdsal.binding.api.RpcConsumerRegistry;
  35 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonService;
  36 import org.opendaylight.mdsal.singleton.common.api.ClusterSingletonServiceProvider;
  37 import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.PortNumber;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.AddMapping;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.GotMapNotify;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.GotMapReply;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapNotify;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapRegister;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapReply;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapRequest;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MappingKeepAlive;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.RequestMapping;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.XtrId;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.XtrReplyMapping;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.XtrRequestMapping;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.MapRegisterCacheMetadata;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.map.register.cache.metadata.EidLispAddress;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapnotifymessage.MapNotifyBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapreplymessage.MapReplyBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.maprequestmessage.MapRequestBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.transport.address.TransportAddress;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.transport.address.TransportAddressBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapNotify;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapNotifyInputBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapReply;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapReplyInputBuilder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapRequest;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.sb.rev150904.SendMapRequestInputBuilder;
  66 import org.opendaylight.yangtools.concepts.Registration;
  67 import org.osgi.service.component.annotations.Activate;
  68 import org.osgi.service.component.annotations.Component;
  69 import org.osgi.service.component.annotations.Deactivate;
  70 import org.osgi.service.component.annotations.Reference;
  71 import org.slf4j.Logger;
  72 import org.slf4j.LoggerFactory;
  73
  74 @Singleton
  75 @Component(service = {IFlowMapping.class, IMapRequestResultHandler.class, IMapNotifyHandler.class},
  76         immediate = true, property = "type=default")
  77 public class LispMappingService implements IFlowMapping, IMapRequestResultHandler,
  78         IMapNotifyHandler, AutoCloseable, ClusterSingletonService {
  79     private static final String LISPFLOWMAPPING_ENTITY_NAME = "lispflowmapping";
  80     private static final ServiceGroupIdentifier SERVICE_GROUP_IDENTIFIER = ServiceGroupIdentifier.create(
  81             LISPFLOWMAPPING_ENTITY_NAME);
  82
  83     private static final Logger LOG = LoggerFactory.getLogger(LispMappingService.class);
  84
  85     private volatile boolean smr = ConfigIni.getInstance().smrIsSet();
  86     private volatile String elpPolicy = ConfigIni.getInstance().getElpPolicy();
  87
  88     // These are non-final for testing
  89     private ThreadLocal<MapReply> tlsMapReply = new ThreadLocal<>();
  90     private ThreadLocal<Pair<MapNotify, List<TransportAddress>>> tlsMapNotify = new ThreadLocal<>();
  91     private ThreadLocal<Pair<MapRequest, TransportAddress>> tlsMapRequest = new ThreadLocal<>();
  92     private IMapResolverAsync mapResolver;
  93     private MapServer mapServer;
  94     private SendMapRequest sendMapRequest;
  95     private SendMapReply sendMapReply;
  96     private SendMapNotify sendMapNotify;
  97
  98     private final IMappingService mapService;
  99     private final NotificationService notificationService;
 100     private final Registration listenerRegistration;
 101     private final Registration cssRegistration;
 102
 103     @Inject
 104     @Activate
 105     public LispMappingService(@Reference final IMappingService mappingService,
 106             @Reference final ClusterSingletonServiceProvider clusterSingletonService,
 107             @Reference final RpcConsumerRegistry rpcService, @Reference final NotificationService notificationService) {
 108         this.mapService = mappingService;
 109         sendMapRequest = rpcService.getRpc(SendMapRequest.class);
 110         sendMapReply = rpcService.getRpc(SendMapReply.class);
 111         sendMapNotify = rpcService.getRpc(SendMapNotify.class);
 112         this.notificationService = notificationService;
 113
 114         // initialize
 115         listenerRegistration = notificationService.registerCompositeListener(new CompositeListener(Set.of(
 116                 new CompositeListener.Component<>(AddMapping.class, this::onAddMapping),
 117                 new CompositeListener.Component<>(GotMapNotify.class, this::onGotMapNotify),
 118                 new CompositeListener.Component<>(RequestMapping.class, this::onRequestMapping),
 119                 new CompositeListener.Component<>(GotMapReply.class, this::onGotMapReply),
 120                 new CompositeListener.Component<>(XtrRequestMapping.class, this::onXtrRequestMapping),
 121                 new CompositeListener.Component<>(XtrReplyMapping.class, this::onXtrReplyMapping),
 122                 new CompositeListener.Component<>(MappingKeepAlive.class, this::onMappingKeepAlive))));
 123         mapResolver = new MapResolver(mapService, smr, elpPolicy, this);
 124         mapServer = new MapServer(mapService, smr, this, notificationService);
 125         cssRegistration = clusterSingletonService.registerClusterSingletonService(this);
 126         mapResolver.setSmrNotificationListener((ISmrNotificationListener) mapServer);
 127         LOG.info("LISP (RFC6830) Mapping Service initialized");
 128     }
 129
 130     public boolean shouldUseSmr() {
 131         return this.smr;
 132     }
 133
 134     @Override
 135     public void setShouldUseSmr(boolean shouldUseSmr) {
 136         this.smr = shouldUseSmr;
 137         if (mapServer != null) {
 138             mapServer.setSubscriptionService(shouldUseSmr);
 139         }
 140         if (mapResolver != null) {
 141             mapResolver.setSubscriptionService(shouldUseSmr);
 142         }
 143         ConfigIni.getInstance().setSmr(shouldUseSmr);
 144     }
 145
 146     public NotificationService getNotificationService() {
 147         return this.notificationService;
 148     }
 149
 150     @Override
 151     public MapReply handleMapRequest(MapRequest request) {
 152         if (LOG.isDebugEnabled()) {
 153             LOG.debug("LISP: Retrieving mapping for {}",
 154                     LispAddressStringifier.getString(request.getEidItem().get(0).getEid()));
 155         }
 156
 157         tlsMapReply.set(null);
 158         tlsMapRequest.set(null);
 159         mapResolver.handleMapRequest(request);
 160         // After this invocation we assume that the thread local is filled with the reply
 161         if (tlsMapRequest.get() != null) {
 162             SendMapRequestInputBuilder smrib = new SendMapRequestInputBuilder();
 163             smrib.setMapRequest(new MapRequestBuilder(tlsMapRequest.get().getLeft()).build());
 164             smrib.setTransportAddress(tlsMapRequest.get().getRight());
 165             sendMapRequest.invoke(smrib.build());
 166             return null;
 167         } else {
 168             return tlsMapReply.get();
 169         }
 170     }
 171
 172     @Override
 173     public Pair<MapNotify, List<TransportAddress>> handleMapRegister(MapRegister mapRegister) {
 174         if (LOG.isDebugEnabled()) {
 175             LOG.debug("LISP: Adding mapping for {}",
 176                     LispAddressStringifier.getString(mapRegister.getMappingRecordItem().get(0)
 177                             .getMappingRecord().getEid()));
 178         }
 179
 180         tlsMapNotify.set(null);
 181         mapServer.handleMapRegister(mapRegister);
 182         // After this invocation we assume that the thread local is filled with the reply
 183         return tlsMapNotify.get();
 184     }
 185
 186     public void setShouldAuthenticate(boolean shouldAuthenticate) {
 187         this.mapResolver.setShouldAuthenticate(shouldAuthenticate);
 188     }
 189
 190     private void sendMapNotify(MapNotify mapNotify, TransportAddress address) {
 191         SendMapNotifyInputBuilder smnib = new SendMapNotifyInputBuilder();
 192         smnib.setMapNotify(new MapNotifyBuilder(mapNotify).build());
 193         smnib.setTransportAddress(address);
 194         sendMapNotify.invoke(smnib.build());
 195     }
 196
 197     @VisibleForTesting
 198     void onAddMapping(AddMapping mapRegisterNotification) {
 199         Pair<MapNotify, List<TransportAddress>> result = handleMapRegister(mapRegisterNotification.getMapRegister());
 200         if (result != null && result.getLeft() != null) {
 201             MapNotify mapNotify = result.getLeft();
 202             List<TransportAddress> rlocs = result.getRight();
 203             if (rlocs == null) {
 204                 TransportAddressBuilder tab = new TransportAddressBuilder();
 205                 tab.setIpAddress(mapRegisterNotification.getTransportAddress().getIpAddress());
 206                 tab.setPort(new PortNumber(LispMessage.PORT_NUMBER));
 207                 sendMapNotify(mapNotify, tab.build());
 208             } else {
 209                 for (TransportAddress ta : rlocs) {
 210                     sendMapNotify(mapNotify, ta);
 211                 }
 212             }
 213         } else {
 214             LOG.debug("Not sending Map-Notify");
 215         }
 216     }
 217
 218     @VisibleForTesting
 219     void onRequestMapping(RequestMapping mapRequestNotification) {
 220         MapReply mapReply = handleMapRequest(mapRequestNotification.getMapRequest());
 221         if (mapReply != null) {
 222             SendMapReplyInputBuilder smrib = new SendMapReplyInputBuilder();
 223             smrib.setMapReply(new MapReplyBuilder(mapReply).build());
 224             smrib.setTransportAddress(mapRequestNotification.getTransportAddress());
 225             sendMapReply.invoke(smrib.build());
 226         } else {
 227             LOG.debug("handleMapRequest: Got null MapReply");
 228         }
 229     }
 230
 231     @VisibleForTesting
 232     void onGotMapReply(GotMapReply notification) {
 233         LOG.debug("Received GotMapReply notification, ignoring");
 234     }
 235
 236     @VisibleForTesting
 237     void onGotMapNotify(GotMapNotify notification) {
 238         LOG.debug("Received GotMapNotify notification, ignoring");
 239     }
 240
 241     @VisibleForTesting
 242     void onXtrRequestMapping(XtrRequestMapping notification) {
 243         LOG.debug("Received XtrRequestMapping notification, ignoring");
 244     }
 245
 246     @VisibleForTesting
 247     void onXtrReplyMapping(XtrReplyMapping notification) {
 248         LOG.debug("Received XtrReplyMapping notification, ignoring");
 249     }
 250
 251     @VisibleForTesting
 252     void onMappingKeepAlive(MappingKeepAlive notification) {
 253         final MapRegisterCacheMetadata cacheMetadata = notification.getMapRegisterCacheMetadata();
 254         for (EidLispAddress eidLispAddress : cacheMetadata.nonnullEidLispAddress().values()) {
 255             final Eid eid = eidLispAddress.getEid();
 256             final XtrId xtrId = cacheMetadata.getXtrId();
 257             final Long timestamp = cacheMetadata.getTimestamp();
 258             LOG.debug("Update map registration for eid {} with timestamp {}", LispAddressStringifier.getString(eid),
 259                     timestamp);
 260             mapService.refreshMappingRegistration(eid, xtrId, timestamp);
 261         }
 262     }
 263
 264     @Override
 265     public void handleMapReply(MapReply reply) {
 266         tlsMapReply.set(reply);
 267     }
 268
 269     @Override
 270     public void handleMapNotify(MapNotify notify, List<TransportAddress> rlocs) {
 271         tlsMapNotify.set(new MutablePair<>(notify, rlocs));
 272     }
 273
 274     @Override
 275     public void handleSMR(MapRequest smrMapRequest, Rloc subscriber) {
 276         if (LOG.isDebugEnabled()) {
 277             LOG.debug("Sending SMR Map-Request to {} with Source-EID {} and EID Record {} (reversed)",
 278                     LispAddressStringifier.getString(subscriber),
 279                     LispAddressStringifier.getString(smrMapRequest.getSourceEid().getEid()),
 280                     LispAddressStringifier.getString(smrMapRequest.getEidItem().get(0).getEid()));
 281         }
 282         SendMapRequestInputBuilder smrib = new SendMapRequestInputBuilder();
 283         smrib.setMapRequest(new MapRequestBuilder(smrMapRequest).build());
 284         smrib.setTransportAddress(LispNotificationHelper.getTransportAddressFromRloc(subscriber));
 285         sendMapRequest.invoke(smrib.build());
 286     }
 287
 288     @Override
 289     public void handleNonProxyMapRequest(MapRequest mapRequest, TransportAddress transportAddress) {
 290         tlsMapRequest.set(new MutablePair<>(mapRequest, transportAddress));
 291     }
 292
 293     private void destroy() {
 294         LOG.info("LISP (RFC6830) Mapping Service is destroyed!");
 295         mapResolver = null;
 296         if (mapServer != null) {
 297             mapServer.close();
 298             mapServer = null;
 299         }
 300     }
 301
 302     @Deactivate
 303     @PreDestroy
 304     @Override
 305     public void close() throws Exception {
 306         destroy();
 307         cssRegistration.close();
 308         listenerRegistration.close();
 309     }
 310
 311     @Override
 312     public void instantiateServiceInstance() {
 313         mapService.setIsMaster(true);
 314     }
 315
 316     @Override
 317     public ListenableFuture<Void> closeServiceInstance() {
 318         if (mapService != null) {
 319             mapService.setIsMaster(false);
 320         }
 321         return Futures.<Void>immediateFuture(null);
 322     }
 323
 324     @Override
 325     public ServiceGroupIdentifier getIdentifier() {
 326         return SERVICE_GROUP_IDENTIFIER;
 327     }
 328 }