2 * Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
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
9 package org.opendaylight.lispflowmapping.implementation;
11 import java.util.ArrayList;
12 import java.util.EnumMap;
13 import java.util.List;
14 import org.opendaylight.lispflowmapping.dsbackend.DataStoreBackEnd;
15 import org.opendaylight.lispflowmapping.implementation.config.ConfigIni;
16 import org.opendaylight.lispflowmapping.implementation.util.DSBEInputUtil;
17 import org.opendaylight.lispflowmapping.implementation.util.MappingMergeUtil;
18 import org.opendaylight.lispflowmapping.interfaces.dao.ILispDAO;
19 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMapCache;
20 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
21 import org.opendaylight.lispflowmapping.interfaces.mappingservice.IMappingService;
22 import org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier;
23 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
24 import org.opendaylight.lispflowmapping.mapcache.FlatMapCache;
25 import org.opendaylight.lispflowmapping.mapcache.MultiTableMapCache;
26 import org.opendaylight.lispflowmapping.mapcache.SimpleMapCache;
27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ExplicitLocatorPath;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4;
30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6;
31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ServicePath;
32 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;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.SiteId;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecord;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecordBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.authkey.container.MappingAuthkey;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecordBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingOrigin;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKey;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.Mapping;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
48 * The Mapping System coordinates caching of md-sal stored mappings and if so configured enables longest prefix match
51 * @author Florin Coras
54 public class MappingSystem implements IMappingSystem {
55 private static final Logger LOG = LoggerFactory.getLogger(MappingSystem.class);
56 private boolean iterateMask;
57 private boolean notificationService;
58 private boolean overwrite;
60 private IMapCache smc;
61 private IMapCache pmc;
62 private final EnumMap<MappingOrigin, IMapCache> tableMap = new EnumMap<>(MappingOrigin.class);
63 private DataStoreBackEnd dsbe;
65 public MappingSystem(ILispDAO dao, boolean iterateMask, boolean notifications, boolean overwrite) {
67 this.iterateMask = iterateMask;
68 this.notificationService = notifications;
69 this.overwrite = overwrite;
73 public void setDataStoreBackEnd(DataStoreBackEnd dsbe) {
78 public void setOverwritePolicy(boolean overwrite) {
79 this.overwrite = overwrite;
83 public void setIterateMask(boolean iterate) {
84 this.iterateMask = iterate;
85 if (smc != null || pmc != null) {
90 public void initialize() {
91 restoreDaoFromDatastore();
94 private void buildMapCaches() {
96 * There exists a direct relationship between MappingOrigins and the tables that are part of the MappingSystem.
97 * Therefore, if a new origin is added, probably a new table should be instantiate here as well.
100 smc = new SimpleMapCache(dao.putTable(MappingOrigin.Southbound.toString()));
101 pmc = new MultiTableMapCache(dao.putTable(MappingOrigin.Northbound.toString()));
103 smc = new FlatMapCache(dao.putTable(MappingOrigin.Southbound.toString()));
104 pmc = new FlatMapCache(dao.putTable(MappingOrigin.Northbound.toString()));
106 tableMap.put(MappingOrigin.Northbound, pmc);
107 tableMap.put(MappingOrigin.Southbound, smc);
110 public void addMapping(MappingOrigin origin, Eid key, Object value, boolean merge) {
111 tableMap.get(origin).addMapping(key, value, origin == MappingOrigin.Southbound ? overwrite : true, merge);
114 public void updateMappingRegistration(MappingOrigin origin, Eid key, Long timestamp) {
115 tableMap.get(origin).updateMappingRegistration(key, timestamp);
118 private MappingRecord updateServicePathMappingRecord(MappingRecord mapping, Eid eid) {
119 // keep properties of original record
120 MappingRecordBuilder recordBuilder = new MappingRecordBuilder(mapping);
121 recordBuilder.setLocatorRecord(new ArrayList<LocatorRecord>());
123 // there should only be one locator record
124 if (mapping.getLocatorRecord().size() != 1) {
125 LOG.warn("MappingRecord associated to ServicePath EID has more than one locator!");
129 LocatorRecord locatorRecord = mapping.getLocatorRecord().get(0);
130 long serviceIndex = ((ServicePath) eid.getAddress()).getServicePath().getServiceIndex();
131 int index = LispAddressUtil.STARTING_SERVICE_INDEX - (int) serviceIndex;
132 Rloc rloc = locatorRecord.getRloc();
133 if (rloc.getAddress() instanceof Ipv4 || rloc.getAddress() instanceof Ipv6) {
135 LOG.warn("Service Index should be 255 for simple IP RLOCs!");
138 } else if (rloc.getAddress() instanceof ExplicitLocatorPath) {
139 ExplicitLocatorPath elp = (ExplicitLocatorPath) rloc.getAddress();
140 List<Hop> hops = elp.getExplicitLocatorPath().getHop();
142 if (index < 0 || index > hops.size()) {
143 LOG.warn("Service Index out of bounds!");
147 SimpleAddress nextHop = hops.get(index).getAddress();
148 LocatorRecordBuilder lrb = new LocatorRecordBuilder(locatorRecord);
149 lrb.setRloc(LispAddressUtil.toRloc(nextHop));
150 recordBuilder.getLocatorRecord().add(lrb.build());
151 return recordBuilder.build();
153 LOG.warn("Nothing to do with ServicePath mapping record");
159 public Object getMapping(Eid src, Eid dst) {
160 // NOTE: Currently we have two lookup algorithms implemented, which are configurable
162 if (ConfigIni.getInstance().getLookupPolicy() == IMappingService.LookupPolicy.NB_AND_SB) {
163 return getMappingNbSbIntersection(src, dst);
165 return getMappingNbFirst(src, dst);
170 public Object getMapping(Eid dst) {
171 return getMapping((Eid)null, dst);
175 public Object getMapping(MappingOrigin origin, Eid key) {
176 if (origin.equals(MappingOrigin.Southbound)) {
177 return getSbMappingWithExpiration(null, key);
179 return tableMap.get(origin).getMapping(null, key);
182 private Object getMappingNbFirst(Eid src, Eid dst) {
184 // Default lookup policy is northboundFirst
185 //lookupPolicy == NB_FIRST
187 Object nbMapping = pmc.getMapping(src, dst);
189 if (nbMapping == null) {
190 return getSbMappingWithExpiration(src, dst);
192 if (dst.getAddress() instanceof ServicePath) {
193 return updateServicePathMappingRecord((MappingRecord) nbMapping, dst);
198 private Object getMappingNbSbIntersection(Eid src, Eid dst) {
199 //lookupPolicy == NB_AND_SB, we return intersection
200 //of NB and SB mappings, or NB mapping if intersection is empty.
202 Object nbMapping = pmc.getMapping(src, dst);
203 if (nbMapping == null) {
206 // no intersection for Service Path mappings
207 if (dst.getAddress() instanceof ServicePath) {
208 return updateServicePathMappingRecord((MappingRecord)nbMapping, dst);
210 Object sbMapping = getSbMappingWithExpiration(src, dst);
211 if (sbMapping == null) {
214 // both NB and SB mappings exist. Compute intersection of the mappings
215 return MappingMergeUtil.computeNbSbIntersection((MappingRecord)nbMapping, (MappingRecord)sbMapping);
218 private Object getSbMappingWithExpiration(Eid src, Eid dst) {
219 Object mappingObject = smc.getMapping(src, dst);
220 if (mappingObject instanceof MappingRecord) {
221 MappingRecord mapping = (MappingRecord) mappingObject;
222 if (MappingMergeUtil.mappingIsExpired(mapping)) {
223 dsbe.removeMapping(DSBEInputUtil.toMapping(MappingOrigin.Southbound, mapping.getEid(),
224 new SiteId(mapping.getSiteId()), mapping));
228 return mappingObject;
232 public Eid getWidestNegativePrefix(Eid key) {
233 Eid nbPrefix = pmc.getWidestNegativeMapping(key);
234 if (nbPrefix == null) {
238 Eid sbPrefix = smc.getWidestNegativeMapping(key);
239 if (sbPrefix == null) {
243 // since prefixes overlap, just return the more specific (larger mask)
244 if (LispAddressUtil.getIpPrefixMask(nbPrefix) < LispAddressUtil.getIpPrefixMask(sbPrefix)) {
252 public void removeMapping(MappingOrigin origin, Eid key) {
253 tableMap.get(origin).removeMapping(key, origin == MappingOrigin.Southbound ? overwrite : true);
254 if (notificationService) {
260 public void addAuthenticationKey(Eid key, MappingAuthkey authKey) {
261 LOG.debug("Adding authentication key '{}' with key-ID {} for {}", authKey.getKeyString(), authKey.getKeyType(),
262 LispAddressStringifier.getString(key));
263 smc.addAuthenticationKey(key, authKey);
267 public MappingAuthkey getAuthenticationKey(Eid key) {
268 if (LOG.isDebugEnabled()) {
269 LOG.debug("Retrieving authentication key for {}", LispAddressStringifier.getString(key));
271 return smc.getAuthenticationKey(key);
275 public void removeAuthenticationKey(Eid key) {
276 if (LOG.isDebugEnabled()) {
277 LOG.debug("Removing authentication key for {}", LispAddressStringifier.getString(key));
279 smc.removeAuthenticationKey(key);
283 public void addData(MappingOrigin origin, Eid key, String subKey, Object data) {
284 if (LOG.isDebugEnabled()) {
285 LOG.debug("Add data of class {} for key {} and subkey {}", data.getClass(),
286 LispAddressStringifier.getString(key), subKey);
288 tableMap.get(origin).addData(key, subKey, data);
292 public Object getData(MappingOrigin origin, Eid key, String subKey) {
293 if (LOG.isDebugEnabled()) {
294 LOG.debug("Retrieving data for key {} and subkey {}", LispAddressStringifier.getString(key), subKey);
296 return tableMap.get(origin).getData(key, subKey);
300 public void removeData(MappingOrigin origin, Eid key, String subKey) {
301 if (LOG.isDebugEnabled()) {
302 LOG.debug("Removing data for key {} and subkey {}", LispAddressStringifier.getString(key), subKey);
304 tableMap.get(origin).removeData(key, subKey);
309 * Restore all mappings and keys from mdsal datastore.
311 private void restoreDaoFromDatastore() {
312 List<Mapping> mappings = dsbe.getAllMappings();
313 List<AuthenticationKey> authKeys = dsbe.getAllAuthenticationKeys();
315 LOG.info("Restoring {} mappings and {} keys from datastore into DAO", mappings.size(), authKeys.size());
317 int expiredMappings = 0;
318 for (Mapping mapping : mappings) {
319 if (MappingMergeUtil.mappingIsExpired(mapping.getMappingRecord())) {
320 dsbe.removeMapping(mapping);
324 addMapping(mapping.getOrigin(), mapping.getMappingRecord().getEid(), mapping.getMappingRecord(), false);
326 LOG.info("{} mappings were expired and were not restored", expiredMappings);
328 for (AuthenticationKey authKey : authKeys) {
329 addAuthenticationKey(authKey.getEid(), authKey.getMappingAuthkey());
333 public void destroy() {
334 LOG.info("Mapping System is being destroyed!");
338 public String printMappings() {
339 final StringBuffer sb = new StringBuffer();
340 sb.append("PolicyMapCache\n--------------\n");
341 sb.append(pmc.printMappings());
342 sb.append("SbMapCache\n----------\n");
343 sb.append(smc.printMappings());
344 return sb.toString();
347 public void cleanCaches() {