2 * Copyright (c) 2016 Cisco Systems, 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.protocol.bgp.inet.codec;
11 import static org.junit.Assert.assertArrayEquals;
12 import static org.junit.Assert.assertEquals;
13 import static org.junit.Assert.assertNotNull;
14 import static org.junit.Assert.assertNull;
16 import com.google.common.collect.Lists;
17 import io.netty.buffer.ByteBuf;
18 import io.netty.buffer.Unpooled;
19 import java.io.ByteArrayOutputStream;
20 import java.io.IOException;
21 import java.io.InputStream;
22 import java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25 import org.junit.BeforeClass;
26 import org.junit.Test;
27 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
28 import org.opendaylight.protocol.bgp.parser.spi.RevisedErrorHandlingSupport;
29 import org.opendaylight.protocol.bgp.parser.spi.pojo.PeerSpecificParserConstraintImpl;
30 import org.opendaylight.protocol.bgp.parser.spi.pojo.RevisedErrorHandlingSupportImpl;
31 import org.opendaylight.protocol.bgp.parser.spi.pojo.ServiceLoaderBGPExtensionProviderContext;
32 import org.opendaylight.protocol.util.ByteArray;
33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;
36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.DestinationIpv6Builder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.destination.ipv6.Ipv6Prefixes;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv6.prefixes.destination.ipv6.Ipv6PrefixesBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv6CaseBuilder;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.Update;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.UpdateBuilder;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.AttributesBuilder;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.AsPathBuilder;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.ClusterIdBuilder;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.MultiExitDiscBuilder;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.OriginBuilder;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.OriginatorIdBuilder;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.as.path.Segments;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.attributes.as.path.SegmentsBuilder;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.update.message.WithdrawnRoutes;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1Builder;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes2;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlriBuilder;
57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlri;
58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.BgpOrigin;
60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.ClusterIdentifier;
61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.Ipv6AddressFamily;
62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.UnicastSubsequentAddressFamily;
63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv6NextHopCase;
64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.Ipv6NextHopCaseBuilder;
65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHopBuilder;
66 import org.opendaylight.yangtools.yang.common.Uint32;
68 public class BGPParserTest {
70 private static final int MAX_SIZE = 300;
72 private static MessageRegistry messageRegistry;
74 private static List<byte[]> input;
76 private static int MESSAGE_COUNT = 2;
79 public static void setUp() throws Exception {
80 messageRegistry = ServiceLoaderBGPExtensionProviderContext.getSingletonInstance().getMessageRegistry();
81 input = new ArrayList<>(MESSAGE_COUNT);
82 for (int i = 1; i <= MESSAGE_COUNT; i++) {
84 final String name = "/up" + i + ".bin";
85 try (InputStream is = BGPParserTest.class.getResourceAsStream(name)) {
87 throw new IOException("Failed to get resource " + name);
89 final ByteArrayOutputStream bis = new ByteArrayOutputStream();
90 final byte[] data = new byte[MAX_SIZE];
92 while ((position = is.read(data, 0, data.length)) != -1) {
93 bis.write(data, 0, position);
97 input.add(bis.toByteArray());
104 * Tests IPv6 NEXT_HOP, NLRI, ORIGIN.IGP, MULTI_EXIT_DISC, ORIGINATOR-ID, CLUSTER_LIST.
106 * ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
107 * 00 80 <- length (128) - including header
109 * 00 00 <- withdrawn routes length
110 * 00 69 <- total path attribute length (105)
111 * 40 <- attribute flags
112 * 01 <- attribute type code (origin)
113 * 01 <- attribute length
114 * 00 <- Origin value (IGP)
115 * 40 <- attribute flags
116 * 02 <- attribute type code (as path)
117 * 06 <- attribute length
119 * 01 <- path segment count
120 * 00 00 fd e9 <- path segment value (65001)
121 * 40 <- attribute flags
122 * 03 <- attribute type code (next hop)
123 * 04 <- attribute length
124 * 0a 00 00 00 <- next hop value (10.0.0.0)
125 * 80 <- attribute flags
126 * 04 <- attribute type code (multi exit disc)
127 * 04 <- attribute length
128 * 00 00 00 00 <- value
129 * 80 <- attribute flags
130 * 09 <- attribute type code (originator id)
131 * 04 <- attribute length
132 * 7f 00 00 01 <- value (localhost ip)
133 * 80 <- attribute flags
134 * 0a <- attribute type code (cluster list)
135 * 08 <- attribute length
136 * 01 02 03 04 <- value
137 * 05 06 07 08 <- value
138 * 80 <- attribute flags
139 * 0e <- attribute type code (mp reach nlri)
140 * 40 <- attribute length
141 * 00 02 <- AFI (Ipv6)
142 * 01 <- SAFI (Unicast)
143 * 20 <- length of next hop
144 * 20 01 0d b8 00 00 00 00 00 00 00 00 00 00 00 01 <- global
145 * fe 80 00 00 00 00 00 00 c0 01 0b ff fe 7e 00 <- link local
149 * 40 20 01 0d b8 00 01 00 02 <- IPv6 Prefix (2001:db8:1:2:: / 64)
150 * 40 20 01 0d b8 00 01 00 01 <- IPv6 Prefix (2001:db8:1:1:: / 64)
151 * 40 20 01 0d b8 00 01 00 00 <- IPv6 Prefix (2001:db8:1:: / 64)
155 public void testIPv6Nlri() throws Exception {
156 final Update message = (Update) messageRegistry.parseMessage(Unpooled.wrappedBuffer(input.get(1)), null);
159 assertNull(message.getWithdrawnRoutes());
161 final UpdateBuilder builder = new UpdateBuilder();
165 final List<Ipv6Prefixes> prefs = new ArrayList<>();
166 prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1:2::/64")).build());
167 prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1:1::/64")).build());
168 prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1::/64")).build());
170 assertNull(message.getNlri());
173 final List<AsNumber> asNumbers = new ArrayList<>();
174 asNumbers.add(new AsNumber(Uint32.valueOf(65001)));
175 final List<Segments> asPath = new ArrayList<>();
176 asPath.add(new SegmentsBuilder().setAsSequence(asNumbers).build());
178 final Ipv6NextHopCase nextHop = new Ipv6NextHopCaseBuilder().setIpv6NextHop(
179 new Ipv6NextHopBuilder().setGlobal(new Ipv6AddressNoZone("2001:db8::1"))
180 .setLinkLocal(new Ipv6AddressNoZone("fe80::c001:bff:fe7e:0")).build()).build();
182 final List<ClusterIdentifier> clusters = Lists.newArrayList(
183 new ClusterIdentifier(new Ipv4AddressNoZone("1.2.3.4")),
184 new ClusterIdentifier(new Ipv4AddressNoZone("5.6.7.8")));
186 // check path attributes
188 final Attributes attrs = message.getAttributes();
190 final AttributesBuilder paBuilder = new AttributesBuilder();
192 paBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
193 assertEquals(paBuilder.getOrigin(), attrs.getOrigin());
195 paBuilder.setAsPath(new AsPathBuilder().setSegments(asPath).build());
196 assertEquals(paBuilder.getAsPath(), attrs.getAsPath());
198 paBuilder.setMultiExitDisc(new MultiExitDiscBuilder().setMed(Uint32.ZERO).build());
199 assertEquals(paBuilder.getMultiExitDisc(), attrs.getMultiExitDisc());
201 paBuilder.setOriginatorId(new OriginatorIdBuilder().setOriginator(new Ipv4AddressNoZone("127.0.0.1")).build());
202 assertEquals(paBuilder.getOriginatorId(), attrs.getOriginatorId());
204 paBuilder.setClusterId(new ClusterIdBuilder().setCluster(clusters).build());
205 assertEquals(paBuilder.getClusterId(), attrs.getClusterId());
207 final MpReachNlriBuilder mpBuilder = new MpReachNlriBuilder();
208 mpBuilder.setAfi(Ipv6AddressFamily.class);
209 mpBuilder.setSafi(UnicastSubsequentAddressFamily.class);
210 mpBuilder.setCNextHop(nextHop);
211 mpBuilder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
212 new DestinationIpv6CaseBuilder().setDestinationIpv6(new DestinationIpv6Builder()
213 .setIpv6Prefixes(prefs).build()).build()).build());
215 paBuilder.addAugmentation(Attributes1.class, new Attributes1Builder()
216 .setMpReachNlri(mpBuilder.build()).build());
217 assertEquals(paBuilder.augmentation(Attributes1.class).getMpReachNlri(),
218 attrs.augmentation(Attributes1.class).getMpReachNlri());
219 paBuilder.setUnrecognizedAttributes(Collections.emptyList());
222 builder.setAttributes(paBuilder.build());
223 assertEquals(builder.build(), message);
225 final ByteBuf buffer = Unpooled.buffer();
226 messageRegistry.serializeMessage(message, buffer);
227 assertArrayEquals(input.get(1), ByteArray.readAllBytes(buffer));
231 * Tests withdrawn routes with malformed attribute.
233 * ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
234 * 00 36 <- length (54) - including header
236 * 00 00 <- withdrawn routes length
237 * 00 1b <- total path attribute length (27)
238 * 40 <- attribute flags
239 * 01 <- attribute type code (origin)
240 * 01 <- WRONG attribute length
241 * 00 <- Origin value (IGP)
242 * 40 <- attribute flags
243 * 03 <- attribute type code (Next Hop)
244 * 04 <- attribute length
245 * 0a 00 00 02 <- value (10.0.0.2)
246 * 40 <- attribute flags
247 * 0e <- attribute type code (MP_REACH)
248 * 0d <- attribute length
249 * 00 01 <- AFI (Ipv4)
250 * 01 <- SAFI (Unicast)
251 * 04 <- next hop length
252 * ff ff ff ff <- next hop
255 * 0a 00 01 <- prefix (10.0.1.0)
258 * 0a 00 02 <- prefix (10.0.2.0)
261 public void testParseUpdateMessageWithMalformedAttributes() throws Exception {
262 final PeerSpecificParserConstraintImpl constraint = new PeerSpecificParserConstraintImpl();
263 constraint.addPeerConstraint(RevisedErrorHandlingSupport.class,
264 RevisedErrorHandlingSupportImpl.forExternalPeer());
265 final Update message = (Update) messageRegistry.parseMessage(Unpooled.wrappedBuffer(input.get(0)), constraint);
266 assertNotNull(message);
267 assertNull(message.getNlri());
268 final List<WithdrawnRoutes> withdrawnRoutes = message.getWithdrawnRoutes();
269 assertNotNull(withdrawnRoutes);
270 assertEquals(1, withdrawnRoutes.size());
271 final Attributes attributes = message.getAttributes();
272 assertNotNull(attributes);
273 assertNull(attributes.augmentation(Attributes1.class));
274 final Attributes2 attributes2 = attributes.augmentation(Attributes2.class);
275 assertNotNull(attributes2);
276 final MpUnreachNlri mpUnreachNlri = attributes2.getMpUnreachNlri();
277 assertNotNull(mpUnreachNlri);