/*
- * Copyright (c) 2013 Contextream, Inc. and others. All rights reserved.
+ * Copyright (c) 2014 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 java.util.Map;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import org.apache.commons.lang3.exception.ExceptionUtils;
+import org.opendaylight.lispflowmapping.implementation.config.ConfigIni;
+import org.opendaylight.lispflowmapping.implementation.mapcache.TopologyMapCache;
import org.opendaylight.lispflowmapping.interfaces.dao.ILispDAO;
-import org.opendaylight.lispflowmapping.interfaces.dao.IMappingServiceKey;
-import org.opendaylight.lispflowmapping.interfaces.dao.MappingServiceKeyUtil;
-import org.opendaylight.lispflowmapping.interfaces.dao.MappingServiceRLOC;
-import org.opendaylight.lispflowmapping.interfaces.dao.MappingServiceValue;
-import org.opendaylight.lispflowmapping.interfaces.lisp.IMapResolver;
-import org.opendaylight.lispflowmapping.type.lisp.EidRecord;
-import org.opendaylight.lispflowmapping.type.lisp.EidToLocatorRecord;
-import org.opendaylight.lispflowmapping.type.lisp.MapReply;
-import org.opendaylight.lispflowmapping.type.lisp.MapRequest;
-import org.opendaylight.lispflowmapping.type.lisp.address.IMaskable;
+import org.opendaylight.lispflowmapping.interfaces.dao.SubscriberRLOC;
+import org.opendaylight.lispflowmapping.interfaces.lisp.IMapRequestResultHandler;
+import org.opendaylight.lispflowmapping.interfaces.lisp.IMapResolverAsync;
+import org.opendaylight.lispflowmapping.lisp.util.LispAFIConvertor;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.EidToLocatorRecord.Action;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.LcafTrafficEngineeringAddress;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.MapRequest;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.eidrecords.EidRecord;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.eidtolocatorrecords.EidToLocatorRecord;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.eidtolocatorrecords.EidToLocatorRecordBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.lcaftrafficengineeringaddress.Hops;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.lispaddress.LispAddressContainer;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.lispaddress.lispaddresscontainer.address.LcafTrafficEngineering;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.locatorrecords.LocatorRecord;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.locatorrecords.LocatorRecordBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.mapreplymessage.MapReplyBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev150820.maprequest.ItrRloc;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-public class MapResolver implements IMapResolver {
- private ILispDAO dao;
- private volatile boolean shouldAuthenticate;
- private volatile boolean shouldIterateMask;
- protected static final Logger logger = LoggerFactory.getLogger(MapResolver.class);
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Sets;
+
+public class MapResolver extends AbstractLispComponent implements IMapResolverAsync {
+
+ private static final int TTL_RLOC_TIMED_OUT = 1;
+ private static final int TTL_NO_RLOC_KNOWN = 15;
+ protected static final Logger LOG = LoggerFactory.getLogger(MapResolver.class);
+
+ private static final ConfigIni configIni = new ConfigIni();
+ private static final String elpPolicy = configIni.getElpPolicy();
public MapResolver(ILispDAO dao) {
this(dao, true, true);
}
public MapResolver(ILispDAO dao, boolean authenticate, boolean iterateMask) {
- this.dao = dao;
- this.shouldAuthenticate = authenticate;
- this.shouldIterateMask = iterateMask;
+ super(dao, authenticate, iterateMask);
}
- public MapReply handleMapRequest(MapRequest request) {
- if (dao == null) {
- logger.warn("handleMapRequest called while dao is uninitialized");
- return null;
- }
- MapReply mapReply = new MapReply();
- mapReply.setNonce(request.getNonce());
-
- for (EidRecord eid : request.getEids()) {
- EidToLocatorRecord eidToLocators = new EidToLocatorRecord();
- eidToLocators.setMaskLength(eid.getMaskLength())//
- .setPrefix(eid.getPrefix());
- IMappingServiceKey key = MappingServiceKeyUtil.generateMappingServiceKey(eid.getPrefix(), eid.getMaskLength());
- Map<String, ?> locators = dao.get(key);
- if (shouldIterateMask() && locators == null && key.getEID() instanceof IMaskable) {
- locators = findMaskLocators(key);
- }
- if (locators != null) {
- addLocators(eidToLocators, locators);
- }
- mapReply.addEidToLocator(eidToLocators);
- }
-
- return mapReply;
- }
+ public void handleMapRequest(MapRequest request, boolean smr, IMapRequestResultHandler callback) {
+ Preconditions.checkNotNull(dao);
- private Map<String, ?> findMaskLocators(IMappingServiceKey key) {
- int mask = key.getMask();
- while (mask > 0) {
- key = MappingServiceKeyUtil.generateMappingServiceKey(key.getEID(), (byte) mask);
- ((IMaskable) key.getEID()).normalize(mask);
- mask--;
- Map<String, ?> locators = dao.get(key);
- if (locators != null) {
- return locators;
+ LispAddressContainer srcEid = null;
+ if (request.getSourceEid() != null) {
+ srcEid = request.getSourceEid().getLispAddressContainer();
+ }
+ MapReplyBuilder builder = new MapReplyBuilder();
+ builder.setEchoNonceEnabled(false);
+ builder.setProbe(false);
+ builder.setSecurityEnabled(false);
+ builder.setNonce(request.getNonce());
+ builder.setEidToLocatorRecord(new ArrayList<EidToLocatorRecord>());
+ for (EidRecord eidRecord : request.getEidRecord()) {
+ EidToLocatorRecord mapping = TopologyMapCache.getMapping(srcEid, eidRecord.getLispAddressContainer(), dao);
+ EidToLocatorRecordBuilder recordBuilder;
+ if (mapping != null) {
+ recordBuilder = new EidToLocatorRecordBuilder(mapping);
+ List<ItrRloc> itrRlocs = request.getItrRloc();
+ if (itrRlocs != null && itrRlocs.size() != 0) {
+ updateLocators(recordBuilder, itrRlocs);
+ LispAddressContainer itrRloc = itrRlocs.get(0).getLispAddressContainer();
+ SubscriberRLOC subscriberRloc = new SubscriberRLOC(itrRloc, srcEid);
+ Set<SubscriberRLOC> subscribers = TopologyMapCache.getSubscribers(mapping.getLispAddressContainer(), dao);
+ 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);
+ }
+ if (smr) {
+ LOG.trace("Adding new subscriber: " + subscriberRloc.toString());
+ subscribers.add(subscriberRloc);
+ TopologyMapCache.addSubscribers(mapping.getLispAddressContainer(), subscribers, dao);
+ }
+ }
+ } else {
+ recordBuilder = new EidToLocatorRecordBuilder();
+ recordBuilder.setAuthoritative(false);
+ recordBuilder.setMapVersion((short) 0);
+ recordBuilder.setMaskLength(eidRecord.getMask());
+ recordBuilder.setLispAddressContainer(eidRecord.getLispAddressContainer());
+ recordBuilder.setAction(Action.NativelyForward);
+ if (shouldAuthenticate() && TopologyMapCache.getAuthenticationKey(eidRecord.getLispAddressContainer(),
+ dao, shouldIterateMask()) != null) {
+ recordBuilder.setRecordTtl(TTL_RLOC_TIMED_OUT);
+ } else {
+ recordBuilder.setRecordTtl(TTL_NO_RLOC_KNOWN);
+
+ }
}
+ builder.getEidToLocatorRecord().add(recordBuilder.build());
}
- return null;
+ callback.handleMapReply(builder.build());
}
- private void addLocators(EidToLocatorRecord eidToLocators, Map<String, ?> locators) {
+ // Process locators according to configured policy
+ private void updateLocators(EidToLocatorRecordBuilder recordBuilder, List<ItrRloc> itrRlocs) {
+ List<LocatorRecord> locatorRecords = recordBuilder.getLocatorRecord();
+ recordBuilder.setLocatorRecord(new ArrayList<LocatorRecord>());
try {
- MappingServiceValue value = (MappingServiceValue) locators.get("value");
- for (MappingServiceRLOC rloc : value.getRlocs()) {
- addLocator(eidToLocators, rloc);
-
+ for (LocatorRecord record : locatorRecords) {
+ LispAddressContainer container = record.getLispAddressContainer();
+
+ // For non-ELP RLOCs, or when ELP policy is default, or itrRlocs is null, just add the locator and be
+ // done
+ if ((!(container.getAddress() instanceof LcafTrafficEngineering))
+ || elpPolicy.equalsIgnoreCase("default") || itrRlocs == null) {
+ recordBuilder.getLocatorRecord().add(
+ new LocatorRecordBuilder().setLocalLocator(record.isLocalLocator())
+ .setRlocProbed(record.isRlocProbed()).setWeight(record.getWeight())
+ .setPriority(record.getPriority()).setMulticastWeight(record.getMulticastWeight())
+ .setMulticastPriority(record.getMulticastPriority()).setRouted(record.isRouted())
+ .setLispAddressContainer(container).setName(record.getName()).build());
+ continue;
+ }
+
+ LcafTrafficEngineeringAddress teAddress = ((LcafTrafficEngineering) container.getAddress())
+ .getLcafTrafficEngineeringAddr();
+ LispAddressContainer nextHop = getNextELPHop(teAddress, itrRlocs);
+ if (nextHop != null) {
+ java.lang.Short priority = record.getPriority();
+ if (elpPolicy.equalsIgnoreCase("both")) {
+ recordBuilder.getLocatorRecord().add(
+ new LocatorRecordBuilder().setLocalLocator(record.isLocalLocator())
+ .setRlocProbed(record.isRlocProbed()).setWeight(record.getWeight())
+ .setPriority(record.getPriority())
+ .setMulticastWeight(record.getMulticastWeight())
+ .setMulticastPriority(record.getMulticastPriority())
+ .setRouted(record.isRouted()).setLispAddressContainer(container)
+ .setName(record.getName()).build());
+ // Make the priority of the added simple locator lower so that ELP is used by default if
+ // the xTR understands ELP. Exclude 255, since that means don't use for unicast forwarding
+ // XXX Complex cases like several ELPs with different priorities are not handled
+ if (priority != 254 || priority !=255) {
+ priority++;
+ }
+ }
+ // Build and add the simple RLOC
+ recordBuilder.getLocatorRecord().add(
+ new LocatorRecordBuilder().setLocalLocator(record.isLocalLocator())
+ .setRlocProbed(record.isRlocProbed()).setWeight(record.getWeight())
+ .setPriority(priority).setMulticastWeight(record.getMulticastWeight())
+ .setMulticastPriority(record.getMulticastPriority()).setRouted(record.isRouted())
+ .setLispAddressContainer(nextHop).setName(record.getName()).build());
+ }
}
} catch (ClassCastException cce) {
+ LOG.error("Class Cast Exception while building EidToLocatorRecord: {}", ExceptionUtils.getStackTrace(cce));
}
}
- private void addLocator(EidToLocatorRecord eidToLocators, MappingServiceRLOC locatorObject) {
- if (locatorObject == null) {
- return;
- }
- try {
- eidToLocators.addLocator(locatorObject.getRecord().clone().setRouted(true));
- eidToLocators.setAction(locatorObject.getAction());
- eidToLocators.setAuthoritative(locatorObject.isAuthoritative());
- eidToLocators.setRecordTtl(locatorObject.getTtl());
- } catch (ClassCastException cce) {
+ private LispAddressContainer getNextELPHop(LcafTrafficEngineeringAddress elp, List<ItrRloc> itrRlocs) {
+ LispAddressContainer nextHop = null;
+ List<Hops> hops = elp.getHops();
+
+ if (hops != null && hops.size() > 0) {
+ // By default we return the first hop
+ nextHop = LispAFIConvertor.toContainer(LispAFIConvertor.toAFIfromPrimitive(hops.get(0).getHop()
+ .getPrimitiveAddress()));
+ for (Hops hop : hops) {
+ LispAddressContainer hopContainer = LispAFIConvertor.toContainer(LispAFIConvertor
+ .toAFIfromPrimitive(hop.getHop().getPrimitiveAddress()));
+ for (ItrRloc itrRloc : itrRlocs) {
+ if (itrRloc.getLispAddressContainer().equals(hopContainer)) {
+ int i = hops.indexOf(hop);
+ if (i < hops.size() - 1) {
+ nextHop = LispAFIConvertor.toContainer(LispAFIConvertor.toAFIfromPrimitive(hops.get(i + 1)
+ .getHop().getPrimitiveAddress()));
+ return nextHop;
+ }
+ }
+ }
+ }
}
- }
-
- public boolean shouldIterateMask() {
- return shouldIterateMask;
- }
-
- public boolean shouldAuthenticate() {
- return shouldAuthenticate;
- }
-
- public void setShouldIterateMask(boolean shouldIterateMask) {
- this.shouldIterateMask = shouldIterateMask;
- }
- public void setShouldAuthenticate(boolean shouldAuthenticate) {
- this.shouldAuthenticate = shouldAuthenticate;
+ return nextHop;
}
}
Code Review / lispflowmapping.git / blobdiff