2 * Copyright (c) 2014 Contextream, Inc. and others. 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.southbound.lisp;
11 import static org.opendaylight.yangtools.yang.common.UintConversions.fromJava;
13 import io.netty.buffer.ByteBufUtil;
14 import io.netty.channel.Channel;
15 import io.netty.channel.ChannelHandler;
16 import io.netty.channel.ChannelHandlerContext;
17 import io.netty.channel.SimpleChannelInboundHandler;
18 import io.netty.channel.socket.DatagramPacket;
19 import java.net.InetAddress;
20 import java.nio.ByteBuffer;
21 import java.util.ArrayList;
22 import java.util.Arrays;
23 import java.util.List;
25 import java.util.Objects;
26 import org.opendaylight.lispflowmapping.config.ConfigIni;
27 import org.opendaylight.lispflowmapping.lisp.authentication.ILispAuthentication;
28 import org.opendaylight.lispflowmapping.lisp.authentication.LispAuthenticationUtil;
29 import org.opendaylight.lispflowmapping.lisp.serializer.MapNotifySerializer;
30 import org.opendaylight.lispflowmapping.lisp.serializer.MapRegisterSerializer;
31 import org.opendaylight.lispflowmapping.lisp.serializer.MapReplySerializer;
32 import org.opendaylight.lispflowmapping.lisp.serializer.MapRequestSerializer;
33 import org.opendaylight.lispflowmapping.lisp.type.LispMessage;
34 import org.opendaylight.lispflowmapping.lisp.util.ByteUtil;
35 import org.opendaylight.lispflowmapping.lisp.util.LispAddressStringifier;
36 import org.opendaylight.lispflowmapping.lisp.util.MapRequestUtil;
37 import org.opendaylight.lispflowmapping.southbound.ConcurrentLispSouthboundStats;
38 import org.opendaylight.lispflowmapping.southbound.LispSouthboundPlugin;
39 import org.opendaylight.lispflowmapping.southbound.lisp.cache.MapRegisterPartialDeserializer;
40 import org.opendaylight.lispflowmapping.southbound.lisp.exception.LispMalformedPacketException;
41 import org.opendaylight.lispflowmapping.southbound.lisp.network.PacketHeader;
42 import org.opendaylight.lispflowmapping.southbound.util.LispNotificationHelper;
43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.PortNumber;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.AddMappingBuilder;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.GotMapNotifyBuilder;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.GotMapReplyBuilder;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapNotify;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapRegister;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapReply;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MapRequest;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MappingKeepAlive;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MappingKeepAliveBuilder;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.MessageType;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.RequestMappingBuilder;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.key.container.MapRegisterCacheKey;
57 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.MapRegisterCacheMetadata;
58 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.MapRegisterCacheMetadataBuilder;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.map.register.cache.metadata.EidLispAddress;
60 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.metadata.container.map.register.cache.metadata.EidLispAddressBuilder;
61 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.value.grouping.MapRegisterCacheValue;
62 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.map.register.cache.value.grouping.MapRegisterCacheValueBuilder;
63 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.authkey.container.MappingAuthkey;
64 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.container.MappingRecord;
65 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.mapping.record.list.MappingRecordItem;
66 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.transport.address.TransportAddressBuilder;
67 import org.slf4j.Logger;
68 import org.slf4j.LoggerFactory;
70 @ChannelHandler.Sharable
71 public class LispSouthboundHandler extends SimpleChannelInboundHandler<DatagramPacket>
72 implements ILispSouthboundService, AutoCloseable {
73 protected static final Logger LOG = LoggerFactory.getLogger(LispSouthboundHandler.class);
75 //TODO: think whether this field can be accessed through mappingservice or some other configuration parameter
76 private boolean authenticationEnabled = ConfigIni.getInstance().isAuthEnabled();
77 private final LispSouthboundPlugin lispSbPlugin;
78 private boolean isReadFromChannelEnabled = true;
80 private Channel channel;
82 public LispSouthboundHandler(LispSouthboundPlugin lispSbPlugin) {
83 this.lispSbPlugin = lispSbPlugin;
86 public void handlePacket(DatagramPacket msg) {
87 ByteBuffer inBuffer = msg.content().nioBuffer();
88 int type = ByteUtil.getUnsignedByte(inBuffer, LispMessage.Pos.TYPE) >> 4;
90 Object lispType = MessageType.forValue(type);
91 if (lispType == MessageType.EncapsulatedControlMessage) {
92 LOG.trace("Received packet of type Encapsulated Control Message");
93 handleEncapsulatedControlMessage(inBuffer, msg.sender().getAddress());
94 } else if (lispType == MessageType.MapRequest) {
95 LOG.trace("Received packet of type Map-Request");
96 handleMapRequest(inBuffer, msg.sender().getAddress(), msg.sender().getPort());
97 } else if (lispType == MessageType.MapRegister) {
98 LOG.trace("Received packet of type Map-Register");
99 handleMapRegister(inBuffer, msg.sender().getAddress(), msg.sender().getPort());
100 } else if (lispType == MessageType.MapNotify) {
101 LOG.trace("Received packet of type Map-Notify");
102 handleMapNotify(inBuffer, msg.sender().getAddress(), msg.sender().getPort());
103 } else if (lispType == MessageType.MapReply) {
104 LOG.trace("Received packet of type Map-Reply");
105 handleMapReply(inBuffer, msg.sender().getAddress(), msg.sender().getPort());
107 LOG.warn("Received unknown LISP control packet (type " + ((lispType != null) ? lispType : type) + ")");
111 @SuppressWarnings("checkstyle:IllegalCatch")
112 private void handleEncapsulatedControlMessage(ByteBuffer inBuffer, InetAddress sourceAddress) {
114 handleMapRequest(inBuffer, sourceAddress, extractEncapsulatedSourcePort(inBuffer));
115 } catch (RuntimeException re) {
116 throw new LispMalformedPacketException("Couldn't deserialize Map-Request (len="
117 + inBuffer.capacity() + ")", re);
121 @SuppressWarnings("checkstyle:IllegalCatch")
122 private void handleMapRequest(ByteBuffer inBuffer, InetAddress sourceAddress, int port) {
124 MapRequest request = MapRequestSerializer.getInstance().deserialize(inBuffer, sourceAddress);
125 InetAddress finalSourceAddress = MapRequestUtil.selectItrRloc(request);
126 if (finalSourceAddress == null) {
127 throw new LispMalformedPacketException("Couldn't deserialize Map-Request, no ITR Rloc found!");
130 RequestMappingBuilder requestMappingBuilder = new RequestMappingBuilder();
131 requestMappingBuilder.setMapRequest(LispNotificationHelper.convertMapRequest(request));
132 TransportAddressBuilder transportAddressBuilder = new TransportAddressBuilder();
133 transportAddressBuilder.setIpAddress(
134 LispNotificationHelper.getIpAddressBinaryFromInetAddress(finalSourceAddress));
135 transportAddressBuilder.setPort(new PortNumber(fromJava(port)));
136 requestMappingBuilder.setTransportAddress(transportAddressBuilder.build());
137 lispSbPlugin.sendNotificationIfPossible(requestMappingBuilder.build());
138 } catch (RuntimeException re) {
139 throw new LispMalformedPacketException("Couldn't deserialize Map-Request (len="
140 + inBuffer.capacity() + ")", re);
141 } catch (InterruptedException e) {
142 LOG.warn("Notification publication interrupted!");
146 @SuppressWarnings("checkstyle:IllegalCatch")
147 private int extractEncapsulatedSourcePort(ByteBuffer inBuffer) {
149 inBuffer.position(PacketHeader.Length.LISP_ENCAPSULATION);
150 int ipType = (inBuffer.get() >> 4);
152 inBuffer.position(inBuffer.position() + PacketHeader.Length.IPV4 - 1);
153 } else if (ipType == 6) {
154 inBuffer.position(inBuffer.position() + PacketHeader.Length.IPV6_NO_EXT - 1);
156 throw new LispMalformedPacketException(
157 "Couldn't deserialize Map-Request: inner packet has unknown IP version: " + ipType);
160 int encapsulatedSourcePort = inBuffer.getShort() & 0xFFFF;
161 inBuffer.position(inBuffer.position() + PacketHeader.Length.UDP - 2);
162 return encapsulatedSourcePort;
163 } catch (RuntimeException re) {
164 throw new LispMalformedPacketException("Couldn't deserialize Map-Request (len="
165 + inBuffer.capacity() + ")", re);
169 @SuppressWarnings("checkstyle:IllegalCatch")
170 private void handleMapRegister(ByteBuffer inBuffer, InetAddress sourceAddress, int port) {
172 Map.Entry<MapRegisterCacheKey, byte[]> artificialEntry = null;
173 MapRegisterCacheKey cacheKey = null;
174 MapRegisterCacheValue cacheValue = null;
175 if (lispSbPlugin.isMapRegisterCacheEnabled()) {
176 artificialEntry = MapRegisterPartialDeserializer.deserializePartially(inBuffer, sourceAddress);
177 cacheKey = artificialEntry == null ? null : artificialEntry.getKey();
178 cacheValue = resolveCacheValue(artificialEntry);
180 if (cacheValue != null) {
181 lispSbPlugin.getStats().incrementCacheHits();
182 MapRegisterCacheMetadata mapRegisterMeta = cacheValue.getMapRegisterCacheMetadata();
183 LOG.debug("Map register message site-ID: {} xTR-ID: {} from cache.", mapRegisterMeta.getSiteId(),
184 mapRegisterMeta.getXtrId());
185 cacheValue = refreshEntry(cacheKey);
186 if (cacheValue != null) {
187 lispSbPlugin.sendNotificationIfPossible(createMappingKeepAlive(cacheValue));
188 if (cacheValue.getMapRegisterCacheMetadata().isWantMapNotify()) {
189 sendMapNotifyMsg(inBuffer, sourceAddress, port, cacheValue);
193 lispSbPlugin.getStats().incrementCacheMisses();
194 MapRegister mapRegister = MapRegisterSerializer.getInstance().deserialize(inBuffer, sourceAddress);
196 MappingAuthkey mappingAuthkey = null;
197 if (authenticationEnabled) {
198 mappingAuthkey = tryToAuthenticateMessage(mapRegister, inBuffer);
199 if (mappingAuthkey == null) {
204 AddMappingBuilder addMappingBuilder = new AddMappingBuilder();
205 addMappingBuilder.setMapRegister(LispNotificationHelper.convertMapRegister(mapRegister));
206 TransportAddressBuilder transportAddressBuilder = new TransportAddressBuilder();
207 transportAddressBuilder.setIpAddress(LispNotificationHelper.getIpAddressBinaryFromInetAddress(
209 transportAddressBuilder.setPort(new PortNumber(fromJava(port)));
210 addMappingBuilder.setTransportAddress(transportAddressBuilder.build());
211 lispSbPlugin.sendNotificationIfPossible(addMappingBuilder.build());
212 if (artificialEntry != null) {
213 final MapRegisterCacheMetadataBuilder cacheMetadataBldNew = new
214 MapRegisterCacheMetadataBuilder();
215 cacheMetadataBldNew.setEidLispAddress(provideEidPrefixesFromMessage(mapRegister));
216 cacheMetadataBldNew.setXtrId(mapRegister.getXtrId());
217 cacheMetadataBldNew.setSiteId(mapRegister.getSiteId());
218 cacheMetadataBldNew.setWantMapNotify(mapRegister.isWantMapNotify());
219 cacheMetadataBldNew.setMergeEnabled(mapRegister.isMergeEnabled());
220 cacheMetadataBldNew.setTimestamp(System.currentTimeMillis());
222 final MapRegisterCacheValueBuilder cacheValueBldNew = new MapRegisterCacheValueBuilder();
223 cacheValueBldNew.setPacketData(artificialEntry.getValue());
224 cacheValueBldNew.setMappingAuthkey(mappingAuthkey);
225 cacheValueBldNew.setMapRegisterCacheMetadata(cacheMetadataBldNew.build());
227 lispSbPlugin.getMapRegisterCache().addEntry(cacheKey, cacheValueBldNew.build());
230 } catch (RuntimeException re) {
231 throw new LispMalformedPacketException("Couldn't deserialize Map-Register (len="
232 + inBuffer.capacity() + ")", re);
233 } catch (InterruptedException e) {
234 LOG.warn("Notification publication interrupted!");
238 private MapRegisterCacheValue refreshEntry(final MapRegisterCacheKey cacheKey) {
239 MapRegisterCacheValue mapRegisterCacheValue = lispSbPlugin.getMapRegisterCache().refreshEntry(cacheKey);
240 if (mapRegisterCacheValue != null) {
241 mapRegisterCacheValue = refreshAuthKeyIfNecessary(mapRegisterCacheValue);
242 lispSbPlugin.getMapRegisterCache().addEntry(cacheKey, mapRegisterCacheValue);
243 return mapRegisterCacheValue;
248 private MapRegisterCacheValue refreshAuthKeyIfNecessary(MapRegisterCacheValue mapRegisterCacheValue) {
249 final List<EidLispAddress> eids = mapRegisterCacheValue.getMapRegisterCacheMetadata().getEidLispAddress();
251 if (lispSbPlugin.getAuthenticationKeyDataListener().authKeysForEidsUnchanged(
252 eids, lispSbPlugin.getMapRegisterCacheTimeout())) {
253 return mapRegisterCacheValue;
256 final MappingAuthkey mappingAuthkey = provideAuthenticateKey(eids);
257 final MapRegisterCacheValueBuilder newMapRegisterCacheValueBuilder = new MapRegisterCacheValueBuilder(
258 mapRegisterCacheValue);
259 final MapRegisterCacheMetadataBuilder newMapRegisterCacheMetadataBuilder =
260 new MapRegisterCacheMetadataBuilder(mapRegisterCacheValue.getMapRegisterCacheMetadata());
262 newMapRegisterCacheValueBuilder.setMappingAuthkey(mappingAuthkey);
263 newMapRegisterCacheValueBuilder.setMapRegisterCacheMetadata(newMapRegisterCacheMetadataBuilder.build());
264 return newMapRegisterCacheValueBuilder.build();
267 private MapRegisterCacheValue resolveCacheValue(Map.Entry<MapRegisterCacheKey, byte[]> entry) {
269 final MapRegisterCacheValue mapRegisterCacheValue =
270 lispSbPlugin.getMapRegisterCache().getEntry(entry.getKey());
271 if (mapRegisterCacheValue != null) {
272 final long creationTime = mapRegisterCacheValue.getMapRegisterCacheMetadata().getTimestamp();
273 final long currentTime = System.currentTimeMillis();
274 if (currentTime - creationTime > lispSbPlugin.getMapRegisterCacheTimeout()) {
275 lispSbPlugin.getMapRegisterCache().removeEntry(entry.getKey());
277 } else if (Arrays.equals(mapRegisterCacheValue.getPacketData(), entry.getValue())) {
278 return mapRegisterCacheValue;
285 private MappingKeepAlive createMappingKeepAlive(final MapRegisterCacheValue value) {
286 MappingKeepAliveBuilder mappingKeepAliveBuilder = new MappingKeepAliveBuilder();
287 mappingKeepAliveBuilder.setMapRegisterCacheMetadata(value.getMapRegisterCacheMetadata());
288 return mappingKeepAliveBuilder.build();
292 * Returns null if not all of eids have the same value of authentication key.
294 private MappingAuthkey provideAuthenticateKey(final List<EidLispAddress> eidLispAddresses) {
295 MappingAuthkey firstAuthKey = null;
296 for (int i = 0; i < eidLispAddresses.size(); i++) {
297 final Eid eid = eidLispAddresses.get(i).getEid();
299 firstAuthKey = lispSbPlugin.getAkdb().getAuthenticationKey(eid);
301 final MappingAuthkey authKey = lispSbPlugin.getAkdb().getAuthenticationKey(eid);
302 if (!Objects.equals(firstAuthKey, authKey)) {
311 private void sendMapNotifyMsg(final ByteBuffer inBuffer, final InetAddress inetAddress, int portNumber,
312 MapRegisterCacheValue mapRegisterValue) {
313 if (mapRegisterValue.getMappingAuthkey().getKeyType() != null) {
314 ByteBuffer outBuffer = transformMapRegisterToMapNotify(inBuffer);
315 if (mapRegisterValue.getMappingAuthkey().getKeyType().toJava() != 0) {
316 outBuffer = calculateAndSetNewMAC(outBuffer, mapRegisterValue.getMappingAuthkey().getKeyString());
318 outBuffer.position(0);
319 lispSbPlugin.handleSerializedLispBuffer(inetAddress, outBuffer, MessageType.MapNotify, portNumber,
322 LOG.error("Map-Register Cache: authentication succeeded, but can't find auth key for sending Map-Notify");
327 * Calculates new message authentication code (MAC) for notify message.
329 private ByteBuffer calculateAndSetNewMAC(final ByteBuffer buffer, final String authKey) {
330 final byte[] authenticationData = LispAuthenticationUtil.createAuthenticationData(buffer, authKey);
331 buffer.position(ILispAuthentication.MAP_REGISTER_AND_NOTIFY_AUTHENTICATION_POSITION);
332 buffer.put(authenticationData);
336 private ByteBuffer transformMapRegisterToMapNotify(final ByteBuffer buffer) {
338 byte typeAndFlags = buffer.get(0);
339 // Shift the xTR-ID present and built for an RTR bits to their correct position
340 byte flags = (byte) ((typeAndFlags << 2) & 0x0F);
341 // Set control message type to 4 (Map-Notify)
343 // Combine the nibbles
344 typeAndFlags = (byte) (type | flags);
345 byte[] byteReplacement = new byte[] {typeAndFlags, 0x00, 0x00};
346 buffer.put(byteReplacement);
351 private List<EidLispAddress> provideEidPrefixesFromMessage(final MapRegister mapRegister) {
352 List<EidLispAddress> eidsResult = new ArrayList<>();
353 for (MappingRecordItem mappingRecordItem : mapRegister.getMappingRecordItem()) {
354 final EidLispAddressBuilder eidLispAddressBuilder = new EidLispAddressBuilder();
355 final Eid eid = mappingRecordItem.getMappingRecord().getEid();
356 eidLispAddressBuilder.setEidLispAddressId(LispAddressStringifier.getString(eid));
357 eidLispAddressBuilder.setEid(eid);
358 eidsResult.add(eidLispAddressBuilder.build());
364 * Checks whether authentication data is valid.
366 * <p>Methods pass through all records from map register message. For the EID of the first record it gets
367 * authentication key and does validation of authentication data again this authentication key. If it pass
368 * it just checks for remaining records (and its EID) whether they have the same authentication key stored in
369 * the authentication key database.
371 * @return Returns authentication key if all of EIDs have the same authentication key or null otherwise
373 private MappingAuthkey tryToAuthenticateMessage(final MapRegister mapRegister, final ByteBuffer byteBuffer) {
374 if (lispSbPlugin.getAkdb() == null) {
375 LOG.debug("Simple map cache wasn't instantieted and set.");
379 MappingAuthkey firstAuthKey = null;
380 final List<MappingRecordItem> mappingRecords = mapRegister.getMappingRecordItem();
381 for (int i = 0; i < mappingRecords.size(); i++) {
382 final MappingRecordItem recordItem = mappingRecords.get(i);
383 final MappingRecord mappingRecord = recordItem.getMappingRecord();
385 firstAuthKey = lispSbPlugin.getAkdb().getAuthenticationKey(mappingRecord.getEid());
386 if (!LispAuthenticationUtil.validate(mapRegister, byteBuffer, mappingRecord.getEid(), firstAuthKey)) {
390 final Eid eid = mappingRecord.getEid();
391 final MappingAuthkey authKey = lispSbPlugin.getAkdb().getAuthenticationKey(eid);
392 if (!firstAuthKey.equals(authKey)) {
393 LOG.debug("Map register packet contained several eids. Authentication keys for first one and for "
394 + "{} are different.",LispAddressStringifier.getString(eid));
402 @SuppressWarnings("checkstyle:IllegalCatch")
403 private void handleMapNotify(ByteBuffer inBuffer, InetAddress sourceAddress, int port) {
405 MapNotify mapNotify = MapNotifySerializer.getInstance().deserialize(inBuffer);
406 GotMapNotifyBuilder gotMapNotifyBuilder = new GotMapNotifyBuilder();
407 gotMapNotifyBuilder.setMapNotify(LispNotificationHelper.convertMapNotify(mapNotify));
408 TransportAddressBuilder transportAddressBuilder = new TransportAddressBuilder();
409 transportAddressBuilder.setIpAddress(LispNotificationHelper
410 .getIpAddressBinaryFromInetAddress(sourceAddress));
411 transportAddressBuilder.setPort(new PortNumber(fromJava(port)));
412 gotMapNotifyBuilder.setTransportAddress(transportAddressBuilder.build());
413 lispSbPlugin.sendNotificationIfPossible(gotMapNotifyBuilder.build());
414 } catch (RuntimeException re) {
415 throw new LispMalformedPacketException("Couldn't deserialize Map-Notify (len="
416 + inBuffer.capacity() + ")", re);
417 } catch (InterruptedException e) {
418 LOG.warn("Notification publication interrupted!");
422 @SuppressWarnings("checkstyle:IllegalCatch")
423 private void handleMapReply(ByteBuffer inBuffer, InetAddress sourceAddress, int port) {
425 MapReply mapReply = MapReplySerializer.getInstance().deserialize(inBuffer);
426 GotMapReplyBuilder gotMapReplyBuilder = new GotMapReplyBuilder();
427 gotMapReplyBuilder.setMapReply(LispNotificationHelper.convertMapReply(mapReply));
428 TransportAddressBuilder transportAddressBuilder = new TransportAddressBuilder();
429 transportAddressBuilder.setIpAddress(LispNotificationHelper
430 .getIpAddressBinaryFromInetAddress(sourceAddress));
431 transportAddressBuilder.setPort(new PortNumber(fromJava(port)));
432 gotMapReplyBuilder.setTransportAddress(transportAddressBuilder.build());
433 lispSbPlugin.sendNotificationIfPossible(gotMapReplyBuilder.build());
434 } catch (RuntimeException re) {
435 throw new LispMalformedPacketException("Couldn't deserialize Map-Reply (len="
436 + inBuffer.capacity() + ")", re);
437 } catch (InterruptedException e) {
438 LOG.warn("Notification publication interrupted!");
442 private void handleStats(int type) {
443 if (lispSbPlugin.getStats() != null) {
444 if (type <= ConcurrentLispSouthboundStats.MAX_LISP_TYPES) {
445 lispSbPlugin.getStats().incrementRx(type);
447 lispSbPlugin.getStats().incrementRxUnknown();
453 protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
454 if (isReadFromChannelEnabled) {
455 if (LOG.isTraceEnabled()) {
456 LOG.trace("Received UDP packet from {}:{} with content:\n{}", msg.sender().getHostString(),
457 msg.sender().getPort(), ByteBufUtil.prettyHexDump(msg.content()));
459 this.channel = ctx.channel();
465 public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
470 public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
471 LOG.error("Error on channel: " + cause, cause);
475 public void close() throws Exception {