X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=mappingservice%2Fimplementation%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Flispflowmapping%2Fimplementation%2Flisp%2FMapResolver.java;h=298e20c2ca8968428136572a525e3985a1dd3806;hb=970c3dbd56428e43f2c13f7c2fdb13dd0696aeaf;hp=fab411ceb3b94d63ea975f3f0b2abcc1207bd727;hpb=17eaff55554f350e9ba985afd2020f2125d41229;p=lispflowmapping.git diff --git a/mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/lisp/MapResolver.java b/mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/lisp/MapResolver.java index fab411ceb..298e20c2c 100644 --- a/mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/lisp/MapResolver.java +++ b/mappingservice/implementation/src/main/java/org/opendaylight/lispflowmapping/implementation/lisp/MapResolver.java @@ -1,5 +1,5 @@ /* - * 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, @@ -8,70 +8,192 @@ 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.lisp.IMapResolver; -import org.opendaylight.lispflowmapping.type.lisp.EidRecord; -import org.opendaylight.lispflowmapping.type.lisp.EidToLocatorRecord; -import org.opendaylight.lispflowmapping.type.lisp.LocatorRecord; -import org.opendaylight.lispflowmapping.type.lisp.MapReply; -import org.opendaylight.lispflowmapping.type.lisp.MapRequest; -import org.opendaylight.lispflowmapping.type.lisp.address.LispAddress; +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; - 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 = dao; + this(dao, true, true); + } + + public MapResolver(ILispDAO dao, boolean authenticate, boolean iterateMask) { + super(dao, authenticate, iterateMask); } - public MapReply handleMapRequest(MapRequest request) { - if (dao == null) { - logger.warn("handleMapRequest called while dao is uninitialized"); - return null; + public void handleMapRequest(MapRequest request, boolean smr, IMapRequestResultHandler callback) { + Preconditions.checkNotNull(dao); + + LispAddressContainer srcEid = null; + if (request.getSourceEid() != null) { + srcEid = request.getSourceEid().getLispAddressContainer(); } - MapReply mapReply = new MapReply(); - mapReply.setNonce(request.getNonce()); - - for (EidRecord eid : request.getEids()) { - EidToLocatorRecord eidToLocators = new EidToLocatorRecord(); - eidToLocators.setMaskLength(eid.getMaskLength())// - .setPrefix(eid.getPrefix()); - Map locators = dao.get(eid.getPrefix()); - if (locators != null) { - addLocators(eidToLocators, locators); + MapReplyBuilder builder = new MapReplyBuilder(); + builder.setEchoNonceEnabled(false); + builder.setProbe(false); + builder.setSecurityEnabled(false); + builder.setNonce(request.getNonce()); + builder.setEidToLocatorRecord(new ArrayList()); + for (EidRecord eidRecord : request.getEidRecord()) { + EidToLocatorRecord mapping = TopologyMapCache.getMapping(srcEid, eidRecord.getLispAddressContainer(), dao); + EidToLocatorRecordBuilder recordBuilder; + if (mapping != null) { + recordBuilder = new EidToLocatorRecordBuilder(mapping); + List 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 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); + + } } - mapReply.addEidToLocator(eidToLocators); + builder.getEidToLocatorRecord().add(recordBuilder.build()); } - - return mapReply; + callback.handleMapReply(builder.build()); } - private void addLocators(EidToLocatorRecord eidToLocators, Map locators) { + // Process locators according to configured policy + private void updateLocators(EidToLocatorRecordBuilder recordBuilder, List itrRlocs) { + List locatorRecords = recordBuilder.getLocatorRecord(); + recordBuilder.setLocatorRecord(new ArrayList()); try { - Integer numRLOCs = (Integer) locators.get("NumRLOCs"); - if (numRLOCs == null) { - return; - } - for (int i = 0; i < numRLOCs; i++) { - addLocator(eidToLocators, locators.get("RLOC" + i)); + 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, Object locatorObject) { - if (locatorObject == null) { - return; - } - try { - LispAddress locator = (LispAddress) locatorObject; - eidToLocators.addLocator(new LocatorRecord().setLocator(locator).setRouted(true)); - } catch (ClassCastException cce) { + private LispAddressContainer getNextELPHop(LcafTrafficEngineeringAddress elp, List itrRlocs) { + LispAddressContainer nextHop = null; + List 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; + } + } + } + } } + + return nextHop; } + }