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;
15 import org.opendaylight.lispflowmapping.implementation.config.ConfigIni;
16 import org.opendaylight.lispflowmapping.dsbackend.DataStoreBackEnd;
17 import org.opendaylight.lispflowmapping.mapcache.FlatMapCache;
18 import org.opendaylight.lispflowmapping.mapcache.MultiTableMapCache;
19 import org.opendaylight.lispflowmapping.mapcache.SimpleMapCache;
20 import org.opendaylight.lispflowmapping.implementation.util.DSBEInputUtil;
21 import org.opendaylight.lispflowmapping.implementation.util.MappingMergeUtil;
22 import org.opendaylight.lispflowmapping.interfaces.dao.ILispDAO;
23 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMapCache;
24 import org.opendaylight.lispflowmapping.interfaces.mapcache.IMappingSystem;
25 import org.opendaylight.lispflowmapping.interfaces.mappingservice.IMappingService;
26 import org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier;
27 import org.opendaylight.lispflowmapping.lisp.util.LispAddressUtil;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ExplicitLocatorPath;
30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv4;
31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6;
32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.ServicePath;
33 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;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.SiteId;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecord;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.locatorrecords.LocatorRecordBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.authkey.container.MappingAuthkey;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecordBuilder;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.MappingOrigin;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.AuthenticationKey;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.mappingservice.rev150906.db.instance.Mapping;
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
49 * The Mapping System coordinates caching of md-sal stored mappings and if so configured enables longest prefix match
52 * @author Florin Coras
55 public class MappingSystem implements IMappingSystem {
56 private final static Logger LOG = LoggerFactory.getLogger(MappingSystem.class);
57 private boolean iterateMask;
58 private boolean notificationService;
59 private boolean overwrite;
61 private IMapCache smc;
62 private IMapCache pmc;
63 private final EnumMap<MappingOrigin, IMapCache> tableMap = new EnumMap<>(MappingOrigin.class);
64 private DataStoreBackEnd dsbe;
66 public MappingSystem(ILispDAO dao, boolean iterateMask, boolean notifications, boolean overwrite) {
68 this.iterateMask = iterateMask;
69 this.notificationService = notifications;
70 this.overwrite = overwrite;
74 public void setDataStoreBackEnd(DataStoreBackEnd dsbe) {
79 public void setOverwritePolicy(boolean overwrite) {
80 this.overwrite = overwrite;
84 public void setIterateMask(boolean iterate) {
85 this.iterateMask = iterate;
86 if (smc != null || pmc != null) {
91 public void initialize() {
92 restoreDaoFromDatastore();
95 private void buildMapCaches() {
97 * There exists a direct relationship between MappingOrigins and the tables that are part of the MappingSystem.
98 * Therefore, if a new origin is added, probably a new table should be instantiate here as well.
101 smc = new SimpleMapCache(dao.putTable(MappingOrigin.Southbound.toString()));
102 pmc = new MultiTableMapCache(dao.putTable(MappingOrigin.Northbound.toString()));
104 smc = new FlatMapCache(dao.putTable(MappingOrigin.Southbound.toString()));
105 pmc = new FlatMapCache(dao.putTable(MappingOrigin.Northbound.toString()));
107 tableMap.put(MappingOrigin.Northbound, pmc);
108 tableMap.put(MappingOrigin.Southbound, smc);
111 public void addMapping(MappingOrigin origin, Eid key, Object value, boolean merge) {
112 tableMap.get(origin).addMapping(key, value, origin == MappingOrigin.Southbound ? overwrite : true, merge);
115 public void updateMappingRegistration(MappingOrigin origin, Eid key, Long timestamp) {
116 tableMap.get(origin).updateMappingRegistration(key, timestamp);
119 private MappingRecord updateServicePathMappingRecord(MappingRecord mapping, Eid eid) {
120 // keep properties of original record
121 MappingRecordBuilder recordBuilder = new MappingRecordBuilder(mapping);
122 recordBuilder.setLocatorRecord(new ArrayList<LocatorRecord>());
124 // there should only be one locator record
125 if (mapping.getLocatorRecord().size() != 1) {
126 LOG.warn("MappingRecord associated to ServicePath EID has more than one locator!");
130 LocatorRecord locatorRecord = mapping.getLocatorRecord().get(0);
131 long serviceIndex = ((ServicePath) eid.getAddress()).getServicePath().getServiceIndex();
132 int index = LispAddressUtil.STARTING_SERVICE_INDEX - (int) serviceIndex;
133 Rloc rloc = locatorRecord.getRloc();
134 if (rloc.getAddress() instanceof Ipv4 || rloc.getAddress() instanceof Ipv6) {
136 LOG.warn("Service Index should be 255 for simple IP RLOCs!");
139 } else if (rloc.getAddress() instanceof ExplicitLocatorPath) {
140 ExplicitLocatorPath elp = (ExplicitLocatorPath) rloc.getAddress();
141 List<Hop> hops = elp.getExplicitLocatorPath().getHop();
143 if (index < 0 || index > hops.size()) {
144 LOG.warn("Service Index out of bounds!");
148 SimpleAddress nextHop = hops.get(index).getAddress();
149 LocatorRecordBuilder lrb = new LocatorRecordBuilder(locatorRecord);
150 lrb.setRloc(LispAddressUtil.toRloc(nextHop));
151 recordBuilder.getLocatorRecord().add(lrb.build());
152 return recordBuilder.build();
154 LOG.warn("Nothing to do with ServicePath mapping record");
160 public Object getMapping(Eid src, Eid dst) {
161 // NOTE: Currently we have two lookup algorithms implemented, which are configurable
163 if (ConfigIni.getInstance().getLookupPolicy() == IMappingService.LookupPolicy.NB_AND_SB) {
164 return getMappingNbSbIntersection(src, dst);
166 return getMappingNbFirst(src, dst);
170 private Object getMappingNbFirst(Eid src, Eid dst) {
172 // Default lookup policy is northboundFirst
173 //lookupPolicy == NB_FIRST
175 Object nbMapping = pmc.getMapping(src, dst);
177 if (nbMapping == null) {
178 return getSbMappingWithExpiration(src, dst);
180 if (dst.getAddress() instanceof ServicePath) {
181 return updateServicePathMappingRecord((MappingRecord) nbMapping, dst);
186 private Object getMappingNbSbIntersection(Eid src, Eid dst) {
187 //lookupPolicy == NB_AND_SB, we return intersection
188 //of NB and SB mappings, or NB mapping if intersection is empty.
190 Object nbMapping = pmc.getMapping(src, dst);
191 if (nbMapping == null) {
194 // no intersection for Service Path mappings
195 if (dst.getAddress() instanceof ServicePath) {
196 return updateServicePathMappingRecord((MappingRecord)nbMapping, dst);
198 Object sbMapping = getSbMappingWithExpiration(src, dst);
199 if (sbMapping == null) {
202 // both NB and SB mappings exist. Compute intersection of the mappings
203 return MappingMergeUtil.computeNbSbIntersection((MappingRecord)nbMapping, (MappingRecord)sbMapping);
206 private Object getSbMappingWithExpiration(Eid src, Eid dst) {
207 Object mappingObject = smc.getMapping(src, dst);
208 if (mappingObject instanceof MappingRecord) {
209 MappingRecord mapping = (MappingRecord) mappingObject;
210 if (MappingMergeUtil.mappingIsExpired(mapping)) {
211 dsbe.removeMapping(DSBEInputUtil.toMapping(MappingOrigin.Southbound, mapping.getEid(),
212 new SiteId(mapping.getSiteId()), mapping));
216 return mappingObject;
220 public Object getMapping(Eid dst) {
221 return getMapping((Eid)null, dst);
225 public Object getMapping(MappingOrigin origin, Eid key) {
226 if (origin.equals(MappingOrigin.Southbound)) {
227 return getSbMappingWithExpiration(null, key);
229 return tableMap.get(origin).getMapping(null, key);
233 public Eid getWidestNegativePrefix(Eid key) {
234 Eid nbPrefix, sbPrefix;
235 nbPrefix = pmc.getWidestNegativeMapping(key);
236 if (nbPrefix == null) {
240 sbPrefix = smc.getWidestNegativeMapping(key);
241 if (sbPrefix == null) {
245 // since prefixes overlap, just return the more specific (larger mask)
246 if (LispAddressUtil.getIpPrefixMask(nbPrefix) < LispAddressUtil.getIpPrefixMask(sbPrefix)) {
254 public void removeMapping(MappingOrigin origin, Eid key) {
255 tableMap.get(origin).removeMapping(key, origin == MappingOrigin.Southbound ? overwrite : true);
256 if (notificationService) {
262 public void addAuthenticationKey(Eid key, MappingAuthkey authKey) {
263 LOG.debug("Adding authentication key '{}' with key-ID {} for {}", authKey.getKeyString(), authKey.getKeyType(),
264 LispAddressStringifier.getString(key));
265 smc.addAuthenticationKey(key, authKey);
269 public MappingAuthkey getAuthenticationKey(Eid key) {
270 if (LOG.isDebugEnabled()) {
271 LOG.debug("Retrieving authentication key for {}", LispAddressStringifier.getString(key));
273 return smc.getAuthenticationKey(key);
277 public void removeAuthenticationKey(Eid key) {
278 if (LOG.isDebugEnabled()) {
279 LOG.debug("Removing authentication key for {}", LispAddressStringifier.getString(key));
281 smc.removeAuthenticationKey(key);
285 public void addData(MappingOrigin origin, Eid key, String subKey, Object data) {
286 if (LOG.isDebugEnabled()) {
287 LOG.debug("Add data of class {} for key {} and subkey {}", data.getClass(),
288 LispAddressStringifier.getString(key), subKey);
290 tableMap.get(origin).addData(key, subKey, data);
294 public Object getData(MappingOrigin origin, Eid key, String subKey) {
295 if (LOG.isDebugEnabled()) {
296 LOG.debug("Retrieving data for key {} and subkey {}", LispAddressStringifier.getString(key), subKey);
298 return tableMap.get(origin).getData(key, subKey);
302 public void removeData(MappingOrigin origin, Eid key, String subKey) {
303 if (LOG.isDebugEnabled()) {
304 LOG.debug("Removing data for key {} and subkey {}", LispAddressStringifier.getString(key), subKey);
306 tableMap.get(origin).removeData(key, subKey);
311 * Restore all mappings and keys from mdsal datastore
313 private void restoreDaoFromDatastore() {
314 List<Mapping> mappings = dsbe.getAllMappings();
315 List<AuthenticationKey> authKeys = dsbe.getAllAuthenticationKeys();
317 LOG.info("Restoring {} mappings and {} keys from datastore into DAO", mappings.size(), authKeys.size());
319 int expiredMappings = 0;
320 for (Mapping mapping : mappings) {
321 if (MappingMergeUtil.mappingIsExpired(mapping.getMappingRecord())) {
322 dsbe.removeMapping(mapping);
326 addMapping(mapping.getOrigin(), mapping.getMappingRecord().getEid(), mapping.getMappingRecord(), false);
328 LOG.info("{} mappings were expired and were not restored", expiredMappings);
330 for (AuthenticationKey authKey : authKeys) {
331 addAuthenticationKey(authKey.getEid(), authKey.getMappingAuthkey());
335 public void destroy() {
336 LOG.info("Mapping System is being destroyed!");
340 public String printMappings() {
341 final StringBuffer sb = new StringBuffer();
342 sb.append("PolicyMapCache\n--------------\n");
343 sb.append(pmc.printMappings());
344 sb.append("SbMapCache\n----------\n");
345 sb.append(smc.printMappings());
346 return sb.toString();
349 public void cleanCaches() {