/*
- * 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 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.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.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv6Afi;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv6PrefixAfi;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SourceDestKeyLcaf;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ExplicitLocatorPath;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.NoAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.SourceDestKey;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.explicit.locator.path.explicit.locator.path.Hop;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.inet.binary.types.rev160303.IpAddressBinary;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv4BinaryAfi;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv4PrefixBinaryAfi;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv6BinaryAfi;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv6PrefixBinaryAfi;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapRequest;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.list.EidItem;
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.MappingRecordItem;
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;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.maprequest.ItrRloc;
import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingOrigin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Sets;
-
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 static final Logger LOG = LoggerFactory.getLogger(MapResolver.class);
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.");
+ return;
+ }
+ if (request.isProbe() != null && request.isProbe()) {
+ 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();
replyBuilder.setProbe(false);
replyBuilder.setSecurityEnabled(false);
replyBuilder.setNonce(request.getNonce());
- replyBuilder.setMappingRecordItem(new ArrayList<MappingRecordItem>());
+ replyBuilder.setMappingRecordItem(new ArrayList<>());
+ List<ItrRloc> itrRlocs = request.getItrRloc();
+ final IpAddressBinary sourceRloc = request.getSourceRloc();
+
for (EidItem eidRecord : request.getEidItem()) {
- MappingRecord mapping = (MappingRecord) mapService.getMapping(srcEid,
- eidRecord.getEid());
- if (mapping != null) {
- List<ItrRloc> itrRlocs = request.getItrRloc();
- if (itrRlocs != null && itrRlocs.size() != 0) {
- if (subscriptionService) {
- updateSubscribers(itrRlocs.get(0).getRloc(), 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 && isValidSourceEidForSubscriber(srcEid)) {
+ 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);
- recordBuilder.setAction(Action.NativelyForward);
- if (authenticate && mapService.getAuthenticationKey(eid) != null) {
- recordBuilder.setRecordTtl(TTL_RLOC_TIMED_OUT);
+ private static boolean isEqualIpVersion(IpAddressBinary srcRloc, Rloc rloc) {
+ if (srcRloc.getIpv4AddressBinary() != null) {
+ if (rloc.getAddressType() == Ipv4Afi.class
+ || rloc.getAddressType() == Ipv4BinaryAfi.class
+ || rloc.getAddressType() == Ipv4PrefixAfi.class
+ || rloc.getAddressType() == Ipv4PrefixBinaryAfi.class) {
+ return true;
+ }
+ } else if (rloc.getAddressType() == Ipv6Afi.class
+ || rloc.getAddressType() == Ipv6BinaryAfi.class
+ || rloc.getAddressType() == Ipv6PrefixAfi.class
+ || rloc.getAddressType() == Ipv6PrefixBinaryAfi.class) {
+ return true;
+ }
+ return false;
+ }
+
+ private static boolean isValidSourceEidForSubscriber(Eid eid) {
+ if (eid == null || eid.getAddress() instanceof NoAddress) {
+ return false;
+ }
+ return true;
+ }
+
+ private Rloc resolveRloc(List<ItrRloc> itrRlocList, IpAddressBinary srcRloc) {
+ if (srcRloc == null) {
+ return itrRlocList.get(0).getRloc();
+ }
+ byte[] srcRlocByte;
+ if (srcRloc.getIpv4AddressBinary() != null) {
+ srcRlocByte = srcRloc.getIpv4AddressBinary().getValue();
} else {
- recordBuilder.setRecordTtl(TTL_NO_RLOC_KNOWN);
+ srcRlocByte = srcRloc.getIpv6AddressBinary().getValue();
+ }
+
+ Rloc equalIpvRloc = null;
+ for (ItrRloc itrRloc : itrRlocList) {
+ final Rloc rloc = itrRloc.getRloc();
+ final byte[] itrRlocByte = LispAddressUtil.ipAddressToByteArray(rloc.getAddress());
+
+ // return an Rloc equal to the source Rloc
+ if (itrRlocByte != null && LispAddressUtil.compareIpAddressByteArrays(srcRlocByte, itrRlocByte) == 0) {
+ return rloc;
+ }
+ // else lookup the first Rloc with identical Ip version
+ if (equalIpvRloc == null && isEqualIpVersion(srcRloc, rloc)) {
+ equalIpvRloc = rloc;
+ }
+ }
+ if (equalIpvRloc != null) {
+ return equalIpvRloc;
+ } else {
+ // if none of the above, return the first Rloc
+ return itrRlocList.get(0).getRloc();
}
- 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
// mapping will be pushed to dst as well (see sendSMRs in MapServer)
if (mapEid.getAddressType().equals(SourceDestKeyLcaf.class)
&& !reqEid.getAddressType().equals(SourceDestKeyLcaf.class)) {
- subscribedEid = SourceDestKeyHelper.getDst(mapEid);
+ subscribedEid = SourceDestKeyHelper.getDstBinary(mapEid);
}
- Set<SubscriberRLOC> 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);
- }
- LOG.trace("Adding new subscriber: " + subscriberRloc.toString());
- subscribers.add(subscriberRloc);
- addSubscribers(subscribedEid, subscribers);
+ mapService.subscribe(subscriber, subscribedEid);
}
// Fixes mapping if request was for simple dst EID but the matched mapping is a SourceDest
if (mapping.getEid().getAddress() instanceof SourceDestKey
&& !(dstEid.getAddress() instanceof SourceDestKey)) {
return new MappingRecordBuilder(mapping).setEid(
- SourceDestKeyHelper.getDst(mapping.getEid())).build();
+ SourceDestKeyHelper.getDstBinary(mapping.getEid())).build();
+ }
+ 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 mapping;
}
- MappingRecordBuilder recordBuilder = new MappingRecordBuilder();
+ MappingRecordBuilder recordBuilder = new MappingRecordBuilder(mapping);
recordBuilder.setLocatorRecord(new ArrayList<LocatorRecord>());
try {
for (LocatorRecord record : locatorRecords) {
.setRlocProbed(record.isRlocProbed()).setWeight(record.getWeight())
.setPriority(priority).setMulticastWeight(record.getMulticastWeight())
.setMulticastPriority(record.getMulticastPriority()).setRouted(record.isRouted())
- .setRloc(LispAddressUtil.toRloc(nextHop)).setLocatorId(record.getLocatorId()).build());
+ .setRloc(LispAddressUtil.toRloc(nextHop))
+ .setLocatorId(record.getLocatorId()).build());
}
}
} catch (ClassCastException cce) {
// By default we return the first hop
nextHop = hops.get(0).getAddress();
for (Hop hop : hops) {
- SimpleAddress hopContainer = hop.getAddress();
+ Address hopAddress = LispAddressUtil.addressFromSimpleAddress(hop.getAddress());
for (ItrRloc itrRloc : itrRlocs) {
- // XXX Need conversion
- if (itrRloc.getRloc().equals(hopContainer)) {
- int i = hops.indexOf(hop);
- if (i < hops.size() - 1) {
- nextHop = hops.get(i + 1).getAddress();
+ if (itrRloc.getRloc().getAddress().equals(hopAddress)) {
+ int iterator = hops.indexOf(hop);
+ if (iterator < hops.size() - 1) {
+ nextHop = hops.get(iterator + 1).getAddress();
return nextHop;
}
}
return nextHop;
}
- @SuppressWarnings("unchecked")
- private Set<SubscriberRLOC> getSubscribers(Eid address) {
- return (Set<SubscriberRLOC>) mapService.getData(MappingOrigin.Southbound, address, SubKeys.SUBSCRIBERS);
- }
-
- private void addSubscribers(Eid address, Set<SubscriberRLOC> subscribers) {
- mapService.addData(MappingOrigin.Southbound, address, SubKeys.SUBSCRIBERS, subscribers);
+ 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;
}
@Override
public void setShouldAuthenticate(boolean shouldAuthenticate) {
this.authenticate = shouldAuthenticate;
}
+
+ @Override
+ public void setSmrNotificationListener(ISmrNotificationListener smrNotificationListener) {
+ this.smrNotificationListener = smrNotificationListener;
+ }
}
Code Review / lispflowmapping.git / blobdiff