/*
- * Copyright (c) 2014 Contextream, Inc. and others. All rights reserved.
+ * Copyright (c) 2014, 2017 Contextream, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
package org.opendaylight.lispflowmapping.implementation.lisp;
import com.google.common.base.Preconditions;
+import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.opendaylight.lispflowmapping.interfaces.dao.SubKeys;
-import org.opendaylight.lispflowmapping.interfaces.dao.SubscriberRLOC;
+import org.opendaylight.lispflowmapping.interfaces.dao.Subscriber;
import org.opendaylight.lispflowmapping.interfaces.lisp.IMapRequestResultHandler;
import org.opendaylight.lispflowmapping.interfaces.lisp.IMapResolverAsync;
+import org.opendaylight.lispflowmapping.interfaces.lisp.ISmrNotificationListener;
+import org.opendaylight.lispflowmapping.interfaces.lisp.SmrEvent;
import org.opendaylight.lispflowmapping.interfaces.mappingservice.IMappingService;
+import org.opendaylight.lispflowmapping.lisp.type.MappingData;
import org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier;
import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
+import org.opendaylight.lispflowmapping.lisp.util.MappingRecordUtil;
import org.opendaylight.lispflowmapping.lisp.util.SourceDestKeyHelper;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv4Afi;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv4PrefixAfi;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecord;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecordBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord.Action;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecordBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.list.MappingRecordItemBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapreplymessage.MapReplyBuilder;
public class MapResolver implements IMapResolverAsync {
protected static final Logger LOG = LoggerFactory.getLogger(MapResolver.class);
- private static final int TTL_RLOC_TIMED_OUT = 1;
- private static final int TTL_NO_RLOC_KNOWN = 15;
-
private IMappingService mapService;
private boolean subscriptionService;
private String elpPolicy;
private IMapRequestResultHandler requestHandler;
private boolean authenticate = true;
+ private ISmrNotificationListener smrNotificationListener;
+ private static final int TTL_DELETE_MAPPING = 0;
public MapResolver(IMappingService mapService, boolean smr, String elpPolicy,
- IMapRequestResultHandler requestHandler) {
+ IMapRequestResultHandler requestHandler) {
Preconditions.checkNotNull(mapService);
this.subscriptionService = smr;
this.mapService = mapService;
}
public void handleMapRequest(MapRequest request) {
+ LOG.trace("Map-Request received: {}", request);
// SMRs and RLOC probes are directed towards xTRs and we're a Map-Resolver here, so ignore them
if (request.isSmr() != null && request.isSmr()) {
LOG.debug("Map-Resolver ignoring incoming SMR control message.");
LOG.debug("Map-Resolver ignoring incoming RLOC probe control message.");
return;
}
+ if (request.isSmrInvoked()) {
+ LOG.debug("SMR-invoked request received.");
+ LOG.trace("Map-Request object: {}", request);
+ for (EidItem eidItem : request.getEidItem()) {
+ final SmrEvent event = new SmrEvent(
+ subscriberListFromItrRlocs(request.getItrRloc(), request.getSourceEid().getEid()),
+ eidItem.getEid(),
+ request.getNonce());
+ smrNotificationListener.onSmrInvokedReceived(event);
+ }
+ }
Eid srcEid = null;
if (request.getSourceEid() != null) {
srcEid = request.getSourceEid().getEid();
final IpAddressBinary sourceRloc = request.getSourceRloc();
for (EidItem eidRecord : request.getEidItem()) {
- MappingRecord mapping = (MappingRecord) mapService.getMapping(srcEid,
- eidRecord.getEid());
- if (mapping != null) {
- if (itrRlocs != null && itrRlocs.size() != 0) {
- if (subscriptionService) {
- final Rloc resolvedRloc = resolveRloc(itrRlocs, sourceRloc);
- updateSubscribers(resolvedRloc, eidRecord.getEid(), mapping.getEid(), srcEid);
- }
- mapping = updateLocators(mapping, itrRlocs);
- }
- mapping = fixIfNotSDRequest(mapping, eidRecord.getEid());
+ MappingData mappingData = mapService.getMapping(srcEid, eidRecord.getEid());
+ MappingRecord mapping;
+ if (mappingData == null) {
+ mapping = mapService.addNegativeMapping(eidRecord.getEid()).getRecord();
} else {
- mapping = getNegativeMapping(eidRecord.getEid());
+ mapping = mappingData.getRecord();
+ }
+
+ if (itrRlocs != null && itrRlocs.size() != 0) {
+ if (subscriptionService) {
+ final Rloc resolvedRloc = resolveRloc(itrRlocs, sourceRloc);
+ updateSubscribers(resolvedRloc, eidRecord.getEid(), mapping.getEid(),
+ srcEid, mapping.getRecordTtl());
+ }
+ mapping = updateLocators(mapping, itrRlocs);
}
+ mapping = fixIfNotSDRequest(mapping, eidRecord.getEid());
+ mapping = fixTtlIfSmrInvoked(request, mapping);
replyBuilder.getMappingRecordItem().add(new MappingRecordItemBuilder().setMappingRecord(mapping).build());
}
requestHandler.handleMapReply(replyBuilder.build());
}
}
- private MappingRecord getNegativeMapping(Eid eid) {
- MappingRecordBuilder recordBuilder = new MappingRecordBuilder();
- recordBuilder.setAuthoritative(false);
- recordBuilder.setMapVersion((short) 0);
- recordBuilder.setEid(eid);
- if (eid.getAddressType().equals(Ipv4PrefixBinaryAfi.class)
- || eid.getAddressType().equals(Ipv6PrefixBinaryAfi.class)) {
- Eid widestNegativePrefix = mapService.getWidestNegativePrefix(eid);
- if (widestNegativePrefix != null) {
- recordBuilder.setEid(widestNegativePrefix);
- }
- }
- recordBuilder.setAction(Action.NativelyForward);
- if (authenticate && mapService.getAuthenticationKey(eid) != null) {
- recordBuilder.setRecordTtl(TTL_RLOC_TIMED_OUT);
- } else {
- recordBuilder.setRecordTtl(TTL_NO_RLOC_KNOWN);
- }
- return recordBuilder.build();
- }
-
- private void updateSubscribers(Rloc itrRloc, Eid reqEid, Eid mapEid, Eid srcEid) {
- SubscriberRLOC subscriberRloc = new SubscriberRLOC(itrRloc, srcEid);
+ private void updateSubscribers(Rloc itrRloc, Eid reqEid, Eid mapEid, Eid srcEid, Integer recordTtl) {
+ Subscriber subscriber = new Subscriber(itrRloc, srcEid, Subscriber.recordTtlToSubscriberTime(recordTtl));
Eid subscribedEid = mapEid;
// If the eid in the matched mapping is SourceDest and the requested eid IS NOT then we subscribe itrRloc only
subscribedEid = SourceDestKeyHelper.getDstBinary(mapEid);
}
- Set<SubscriberRLOC> subscribers = getSubscribers(subscribedEid);
+ Set<Subscriber> subscribers = getSubscribers(subscribedEid);
if (subscribers == null) {
subscribers = Sets.newConcurrentHashSet();
- } else if (subscribers.contains(subscriberRloc)) {
- // If there is an entry already for this subscriberRloc, remove it, so that it gets the new
- // timestamp
- subscribers.remove(subscriberRloc);
+ } else if (subscribers.contains(subscriber)) {
+ // If there is an entry already for this subscriber, remove it, so that it gets the new timestamp
+ subscribers.remove(subscriber);
}
if (LOG.isTraceEnabled()) {
- LOG.trace("Adding new subscriber: " + LispAddressStringifier.getString(subscriberRloc.getSrcRloc()));
+ LOG.trace("Adding new subscriber {} for EID {}", subscriber.getString(),
+ LispAddressStringifier.getString(subscribedEid));
}
- subscribers.add(subscriberRloc);
+ subscribers.add(subscriber);
addSubscribers(subscribedEid, subscribers);
}
return mapping;
}
+ // When an SMR-invoked Map-Request is asking for a mapping that is negative, it is most likely an attempt to delete
+ // that mapping.
+ private MappingRecord fixTtlIfSmrInvoked(MapRequest request, MappingRecord mapping) {
+ if (request.isSmrInvoked() && MappingRecordUtil.isNegativeMapping(mapping)) {
+ return new MappingRecordBuilder(mapping).setRecordTtl(TTL_DELETE_MAPPING).build();
+ }
+ return mapping;
+ }
+
private boolean locatorsNeedFixing(List<LocatorRecord> locatorRecords) {
+ // no locators - no fixing needed ;)
+ if (locatorRecords == null) {
+ return false;
+ }
+
for (LocatorRecord record : locatorRecords) {
if (record.getRloc().getAddress() instanceof ExplicitLocatorPath) {
return true;
return nextHop;
}
+ private static List<Subscriber> subscriberListFromItrRlocs(List<ItrRloc> itrRlocs, Eid srcEid) {
+ List<Subscriber> subscriberList = Lists.newArrayList();
+ for (ItrRloc itrRloc : itrRlocs) {
+ subscriberList.add(new Subscriber(itrRloc.getRloc(), srcEid, Subscriber.DEFAULT_SUBSCRIBER_TIMEOUT));
+ }
+ return subscriberList;
+ }
+
@SuppressWarnings("unchecked")
- private Set<SubscriberRLOC> getSubscribers(Eid address) {
- return (Set<SubscriberRLOC>) mapService.getData(MappingOrigin.Southbound, address, SubKeys.SUBSCRIBERS);
+ private Set<Subscriber> getSubscribers(Eid address) {
+ return (Set<Subscriber>) mapService.getData(MappingOrigin.Southbound, address, SubKeys.SUBSCRIBERS);
}
- private void addSubscribers(Eid address, Set<SubscriberRLOC> subscribers) {
+ private void addSubscribers(Eid address, Set<Subscriber> subscribers) {
mapService.addData(MappingOrigin.Southbound, address, SubKeys.SUBSCRIBERS, subscribers);
}
public void setShouldAuthenticate(boolean shouldAuthenticate) {
this.authenticate = shouldAuthenticate;
}
+
+ @Override
+ public void setSmrNotificationListener(ISmrNotificationListener smrNotificationListener) {
+ this.smrNotificationListener = smrNotificationListener;
+ }
}
Code Review / lispflowmapping.git / blobdiff