bgp/extensions/linkstate/src/test/java/org/opendaylight/protocol/bgp/linkstate/SrAttributeParserTest.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.protocol.bgp.linkstate;
   9
  10 import static org.junit.Assert.assertArrayEquals;
  11 import static org.junit.Assert.assertEquals;
  12
  13 import com.google.common.collect.Lists;
  14 import com.google.common.primitives.Bytes;
  15 import io.netty.buffer.ByteBuf;
  16 import io.netty.buffer.Unpooled;
  17 import java.util.ArrayList;
  18 import java.util.Collections;
  19 import java.util.List;
  20 import org.junit.Before;
  21 import org.junit.Test;
  22 import org.opendaylight.protocol.bgp.linkstate.impl.BGPActivator;
  23 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.Ipv6SrPrefixAttributesParser;
  24 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.RangeTlvParser;
  25 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.SrLinkAttributesParser;
  26 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.SrNodeAttributesParser;
  27 import org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.SrPrefixAttributesParser;
  28 import org.opendaylight.protocol.bgp.parser.spi.BGPExtensionProviderContext;
  29 import org.opendaylight.protocol.bgp.parser.spi.pojo.SimpleBGPExtensionProviderContext;
  30 import org.opendaylight.protocol.rsvp.parser.spi.pojo.ServiceLoaderRSVPExtensionProviderContext;
  31 import org.opendaylight.protocol.util.ByteArray;
  32 import org.opendaylight.protocol.util.Ipv6Util;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.ProtocolId;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.attribute.SrAdjIds;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.attribute.SrAdjIdsBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.attribute.SrLanAdjIds;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.linkstate.attribute.SrLanAdjIdsBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.node.state.SrAlgorithm;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.node.state.SrAlgorithmBuilder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.node.state.SrCapabilities;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.node.state.SrCapabilitiesBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.Ipv6SrPrefix;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.Ipv6SrPrefixBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.SrPrefix;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.SrPrefixBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.SrRange;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.prefix.state.SrRangeBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.Algorithm;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.Weight;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.IsisAdjFlagsCase;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.IsisAdjFlagsCaseBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.OspfAdjFlagsCase;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.OspfAdjFlagsCaseBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.isis.adj.flags._case.IsisAdjFlagsBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.adj.flags.flags.ospf.adj.flags._case.OspfAdjFlagsBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sid.tlv.BindingSubTlvs;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sid.tlv.BindingSubTlvsBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sid.tlv.flags.IsisBindingFlagsCase;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sid.tlv.flags.IsisBindingFlagsCaseBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.EroMetricCaseBuilder;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv4EroBackupCaseBuilder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv4EroCaseBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroBackupCaseBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroCaseBuilder;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.PrefixSidCaseBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.SidLabelCaseBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.UnnumberedInterfaceIdBackupEroCaseBuilder;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.UnnumberedInterfaceIdEroCaseBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv4.ero._case.Ipv4EroBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv4.ero.backup._case.Ipv4EroBackupBuilder;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv6.ero._case.Ipv6EroBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv6.ero.backup._case.Ipv6EroBackupBuilder;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.prefix.sid._case.PrefixSidBuilder;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.unnumbered._interface.id.backup.ero._case.UnnumberedInterfaceIdBackupEroBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.unnumbered._interface.id.ero._case.UnnumberedInterfaceIdEroBuilder;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.IsisPrefixFlagsCase;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.IsisPrefixFlagsCaseBuilder;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.OspfPrefixFlagsCase;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.OspfPrefixFlagsCaseBuilder;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.isis.prefix.flags._case.IsisPrefixFlagsBuilder;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.prefix.sid.tlv.flags.ospf.prefix.flags._case.OspfPrefixFlagsBuilder;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.sub.tlvs.range.sub.tlv.BindingSidTlvCaseBuilder;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.sub.tlvs.range.sub.tlv.PrefixSidTlvCaseBuilder;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.sub.tlvs.range.sub.tlv.SidLabelTlvCaseBuilder;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.sub.tlvs.range.sub.tlv.prefix.sid.tlv._case.PrefixSidTlvBuilder;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.tlv.SubTlvs;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.range.tlv.SubTlvsBuilder;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.sid.label.index.sid.label.index.Ipv6AddressCaseBuilder;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.sid.label.index.sid.label.index.LocalLabelCaseBuilder;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.sid.label.index.sid.label.index.SidCaseBuilder;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.IsoSystemIdentifier;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.MplsLabel;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.TeMetric;
  96 import org.opendaylight.yangtools.yang.common.Uint16;
  97 import org.opendaylight.yangtools.yang.common.Uint32;
  98 import org.opendaylight.yangtools.yang.common.Uint8;
  99
 100 public class SrAttributeParserTest {
 101
 102     private static final byte[] IPV6_A_BYTES = { 0x20, 1, 0x0d, (byte) 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
 103     private static final Ipv6Address IPV6_A = new Ipv6Address("2001:db8::1");
 104     private static final byte[] IPV6_B_BYTES = { 0x20, 1, 0x0d, (byte) 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 };
 105     private static final Ipv6Address IPV6_B = new Ipv6Address("2001:db8::2");
 106
 107     private static final IsisPrefixFlagsCase ISIS_PREFIX_FLAGS = new IsisPrefixFlagsCaseBuilder()
 108             .setIsisPrefixFlags(new IsisPrefixFlagsBuilder()
 109                 .setReadvertisement(Boolean.TRUE)
 110                 .setNodeSid(Boolean.FALSE)
 111                 .setNoPhp(Boolean.TRUE)
 112                 .setExplicitNull(Boolean.FALSE)
 113                 .build())
 114             .build();
 115     private static final OspfPrefixFlagsCase OSPF_PREFIX_FLAGS = new OspfPrefixFlagsCaseBuilder()
 116             .setOspfPrefixFlags(new OspfPrefixFlagsBuilder()
 117                 .setNoPhp(Boolean.FALSE)
 118                 .setMappingServer(Boolean.TRUE)
 119                 .setExplicitNull(Boolean.FALSE)
 120                 .build())
 121             .build();
 122
 123     private static final IsisBindingFlagsCase BINDING_FLAGS = new IsisBindingFlagsCaseBuilder()
 124         .setAddressFamily(Boolean.FALSE)
 125         .setMirrorContext(Boolean.TRUE)
 126         .setSpreadTlv(Boolean.FALSE)
 127         .setLeakedFromLevel2(Boolean.FALSE)
 128         .setAttachedFlag(Boolean.TRUE)
 129         .build();
 130
 131     private static final IsisAdjFlagsCase ISIS_ADJ_FLAGS = new IsisAdjFlagsCaseBuilder()
 132             .setIsisAdjFlags(new IsisAdjFlagsBuilder()
 133                 .setAddressFamily(Boolean.FALSE)
 134                 .setBackup(Boolean.TRUE)
 135                 .setSet(Boolean.FALSE)
 136                 .build())
 137             .build();
 138     private static final OspfAdjFlagsCase OSPF_ADJ_FLAGS = new OspfAdjFlagsCaseBuilder()
 139             .setOspfAdjFlags(new OspfAdjFlagsBuilder()
 140                 .setBackup(Boolean.TRUE)
 141                 .setSet(Boolean.FALSE)
 142                 .build())
 143             .build();
 144     private static final OspfAdjFlagsCase OSPF_LAN_ADJ_FLAGS = new OspfAdjFlagsCaseBuilder()
 145             .setOspfAdjFlags(new OspfAdjFlagsBuilder()
 146                 .setBackup(Boolean.FALSE)
 147                 .setSet(Boolean.FALSE)
 148                 .build())
 149             .build();
 150
 151     @Before
 152     public void setUp() throws Exception {
 153         final BGPActivator act = new BGPActivator(true,
 154             ServiceLoaderRSVPExtensionProviderContext.getSingletonInstance().getRsvpRegistry());
 155         final BGPExtensionProviderContext context = new SimpleBGPExtensionProviderContext();
 156         act.start(context);
 157     }
 158
 159     @Test
 160     public void testSrAlgorithm() {
 161         final byte[] bytes = { 0 };
 162         final SrAlgorithm alg = new SrAlgorithmBuilder().setAlgorithms(Lists.newArrayList(Algorithm.ShortestPathFirst))
 163                 .build();
 164         final SrAlgorithm empty = new SrAlgorithmBuilder().setAlgorithms(Collections.emptyList()).build();
 165         assertEquals(alg, SrNodeAttributesParser.parseSrAlgorithms(Unpooled.wrappedBuffer(bytes)));
 166         final ByteBuf b = Unpooled.buffer();
 167         assertEquals(empty, SrNodeAttributesParser.parseSrAlgorithms(b));
 168         SrNodeAttributesParser.serializeSrAlgorithms(alg, b);
 169         assertArrayEquals(bytes, ByteArray.readAllBytes(b));
 170
 171         SrNodeAttributesParser.serializeSrAlgorithms(empty, b);
 172         assertEquals(0, b.readableBytes());
 173     }
 174
 175     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.1.1
 176     @Test
 177     public void testSrCapabilities() {
 178         final byte[] bytesIsis = { (byte)0xC0, 0, 0, 0, 10, 4, (byte)0x89, 0, 4, 1, 2, 3, 4 };
 179         final byte[] bytesOspf = { 0, 0, 0, 0, 10, 4, (byte)0x89, 0, 4, 1, 2, 3, 4 };
 180         final SrCapabilities capsIsis = new SrCapabilitiesBuilder().setMplsIpv4(Boolean.TRUE).setMplsIpv6(Boolean.TRUE)
 181                 .setSrIpv6(Boolean.FALSE)
 182                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 183                 .setRangeSize(Uint32.valueOf(10)).build();
 184         final SrCapabilities capsOspf = new SrCapabilitiesBuilder().setMplsIpv4(Boolean.FALSE)
 185                 .setMplsIpv6(Boolean.FALSE).setSrIpv6(Boolean.FALSE).setSidLabelIndex(new SidCaseBuilder()
 186                     .setSid(Uint32.valueOf(16909060L)).build()).setRangeSize(Uint32.valueOf(10)).build();
 187         assertEquals(capsIsis,
 188             SrNodeAttributesParser.parseSrCapabilities(Unpooled.wrappedBuffer(bytesIsis), ProtocolId.IsisLevel1));
 189         assertEquals(capsOspf,
 190             SrNodeAttributesParser.parseSrCapabilities(Unpooled.wrappedBuffer(bytesIsis), ProtocolId.Ospf));
 191         final ByteBuf encodedIsis = Unpooled.buffer();
 192         final ByteBuf encodedOspf = Unpooled.buffer();
 193         SrNodeAttributesParser.serializeSrCapabilities(capsIsis, encodedIsis);
 194         SrNodeAttributesParser.serializeSrCapabilities(capsOspf, encodedOspf);
 195         assertArrayEquals(bytesIsis, ByteArray.readAllBytes(encodedIsis));
 196         assertArrayEquals(bytesOspf, ByteArray.readAllBytes(encodedOspf));
 197     }
 198
 199     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.3.1
 200     @Test
 201     public void testSrPrefix() {
 202         final byte[] bytes = { (byte)0xA0, 0, 0, 0, 1, 2, 3, 4 };
 203         final byte[] bytesOspf = { (byte)0x20, 0, 0, 0, 1, 2, 3, 4 };
 204         final SrPrefix prefixIsis = new SrPrefixBuilder()
 205             .setFlags(ISIS_PREFIX_FLAGS)
 206             .setAlgorithm(Algorithm.ShortestPathFirst)
 207             .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 208             .build();
 209         final SrPrefix prefixOspf = new SrPrefixBuilder()
 210             .setFlags(OSPF_PREFIX_FLAGS)
 211             .setAlgorithm(Algorithm.ShortestPathFirst)
 212             .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 213             .build();
 214         assertEquals(prefixIsis,
 215             SrPrefixAttributesParser.parseSrPrefix(Unpooled.wrappedBuffer(bytes), ProtocolId.IsisLevel1));
 216         assertEquals(prefixOspf,
 217             SrPrefixAttributesParser.parseSrPrefix(Unpooled.wrappedBuffer(bytes), ProtocolId.Ospf));
 218         final ByteBuf serializedPrefix = Unpooled.buffer();
 219         final ByteBuf serializedPrefixOspf = Unpooled.buffer();
 220         SrPrefixAttributesParser.serializeSrPrefix(prefixIsis, serializedPrefix);
 221         SrPrefixAttributesParser.serializeSrPrefix(prefixOspf, serializedPrefixOspf);
 222         assertArrayEquals(bytes, ByteArray.readAllBytes(serializedPrefix));
 223         assertArrayEquals(bytesOspf, ByteArray.readAllBytes(serializedPrefixOspf));
 224     }
 225
 226     // https://tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-02#section-2.3.2
 227     @Test
 228     public void testIpv6SrPrefix() {
 229         final byte[] bytes = { 0, 0, 0};
 230         final Ipv6SrPrefix prefix = new Ipv6SrPrefixBuilder().setAlgorithm(Algorithm.ShortestPathFirst).build();
 231         assertEquals(prefix, Ipv6SrPrefixAttributesParser.parseSrIpv6Prefix(Unpooled.wrappedBuffer(bytes)));
 232         final ByteBuf serializedPrefix = Unpooled.buffer();
 233         Ipv6SrPrefixAttributesParser.serializeIpv6SrPrefix(prefix, serializedPrefix);
 234         assertArrayEquals(bytes, ByteArray.readAllBytes(serializedPrefix));
 235     }
 236
 237     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.3.2
 238     @Test
 239     public void testRangeTlv() {
 240         final byte[] tested = {
 241             0, 0, 0, 5,
 242             4, (byte)0x89, 0, 4, 1, 2, 3, 4, // sid
 243             4, (byte)0x86, 0, 7, (byte)0xac, 1, 0, 0, 1, 2, 0, // prefix + mpls label
 244             4, (byte)0x88, 0, 0x58, 5, 0x48, 0, 0, // binding sid
 245             // binding sub-tlvs
 246             4, (byte)0x86, 0, 8, (byte)0xa0, 1, 0, 0, 1, 2, 3, 4, // prefix
 247             4, (byte)0x89, 0, 4, 1, 2, 3, 4, // sid
 248             4, (byte)0x8a, 0, 4, 0, 0, 0, 6, // ero metric
 249             4, (byte)0x8b, 0, 8, 0, 0, 0, 0, 9, 8, 7, 6,  // IPv4 ERO
 250             4, (byte)0x8d, 0, 0x0c, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, // Unnumbered Interface ID ERO Sub-TLV
 251             4, (byte)0x8e, 0, 8, 0, 0, 0, 0, 3, 4, 5, 6, // IPv4 ERO backup
 252             4, (byte)0x90, 0, 0x0c, 0, 0, 0, 0, 3, 3, 3, 3, 4, 4, 4, 4, // Unnumbered Interface ID ERO Sub-TLV Backup
 253         };
 254         final SrRange parsedRange = RangeTlvParser.parseSrRange(Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1);
 255
 256         final List<SubTlvs> rangeSubTlvs = new ArrayList<>();
 257         addSubTlvs(rangeSubTlvs);
 258         final SrRange expected = new SrRangeBuilder().setInterArea(Boolean.FALSE).setRangeSize(Uint16.valueOf(5))
 259                 .setSubTlvs(rangeSubTlvs).build();
 260
 261         assertEquals(expected, parsedRange);
 262
 263         final ByteBuf serializedRange = Unpooled.buffer();
 264         RangeTlvParser.serializeSrRange(parsedRange, serializedRange);
 265         assertArrayEquals(tested, ByteArray.getAllBytes(serializedRange));
 266     }
 267
 268     private static void addSubTlvs(final List<SubTlvs> rangeSubTlvs) {
 269         rangeSubTlvs.add(new SubTlvsBuilder()
 270             .setRangeSubTlv(new SidLabelTlvCaseBuilder()
 271                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 272                 .build())
 273             .build());
 274         rangeSubTlvs.add(new SubTlvsBuilder()
 275             .setRangeSubTlv(new PrefixSidTlvCaseBuilder()
 276                 .setPrefixSidTlv(new PrefixSidTlvBuilder()
 277                     .setFlags(ISIS_PREFIX_FLAGS)
 278                     .setAlgorithm(Algorithm.StrictShortestPathFirst)
 279                     .setSidLabelIndex(new LocalLabelCaseBuilder()
 280                         .setLocalLabel(new MplsLabel(Uint32.valueOf(66048)))
 281                         .build())
 282                     .build())
 283                 .build())
 284             .build());
 285         final List<BindingSubTlvs> bindingSubTlvs = new ArrayList<>();
 286         addBindingSubTlvs(bindingSubTlvs);
 287         rangeSubTlvs.add(new SubTlvsBuilder().setRangeSubTlv(
 288             new BindingSidTlvCaseBuilder()
 289                 .setWeight(new Weight(Uint8.valueOf(5)))
 290                 .setFlags(BINDING_FLAGS)
 291                 .setBindingSubTlvs(bindingSubTlvs).build()).build());
 292     }
 293
 294     private static void addBindingSubTlvs(final List<BindingSubTlvs> bindingSubTlvs) {
 295         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 296             .setBindingSubTlv(new PrefixSidCaseBuilder()
 297                 .setPrefixSid(new PrefixSidBuilder()
 298                     .setFlags(ISIS_PREFIX_FLAGS)
 299                     .setAlgorithm(Algorithm.StrictShortestPathFirst)
 300                     .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 301                     .build())
 302                 .build())
 303             .build());
 304         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 305             .setBindingSubTlv(new SidLabelCaseBuilder()
 306                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 307                 .build())
 308             .build());
 309         bindingSubTlvs.add(new BindingSubTlvsBuilder().setBindingSubTlv(
 310             new EroMetricCaseBuilder().setEroMetric(new TeMetric(Uint32.valueOf(6))).build()).build());
 311         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 312             .setBindingSubTlv(new Ipv4EroCaseBuilder()
 313                 .setIpv4Ero(new Ipv4EroBuilder().setLoose(Boolean.FALSE).setAddress(new Ipv4Address("9.8.7.6")).build())
 314                 .build())
 315             .build());
 316         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 317             .setBindingSubTlv(new UnnumberedInterfaceIdEroCaseBuilder()
 318                 .setUnnumberedInterfaceIdEro(new UnnumberedInterfaceIdEroBuilder()
 319                     .setLoose(Boolean.FALSE)
 320                     .setRouterId(Uint32.valueOf(16843009L))
 321                     .setInterfaceId(Uint32.valueOf(33686018L))
 322                     .build())
 323                 .build())
 324             .build());
 325         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 326             .setBindingSubTlv(new Ipv4EroBackupCaseBuilder()
 327                 .setIpv4EroBackup(new Ipv4EroBackupBuilder()
 328                     .setLoose(Boolean.FALSE).setAddress(new Ipv4Address("3.4.5.6"))
 329                     .build())
 330                 .build())
 331             .build());
 332         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 333             .setBindingSubTlv(new UnnumberedInterfaceIdBackupEroCaseBuilder()
 334                 .setUnnumberedInterfaceIdBackupEro(new UnnumberedInterfaceIdBackupEroBuilder()
 335                     .setLoose(Boolean.FALSE)
 336                     .setRouterId(Uint32.valueOf(50529027L))
 337                     .setInterfaceId(Uint32.valueOf(67372036L))
 338                     .build())
 339                 .build())
 340             .build());
 341     }
 342
 343     @Test
 344     public void testRangeTlvIpv6() {
 345         final byte[] tested = Bytes.concat(
 346             new byte[] {
 347                 0, 0, 0, 5,
 348                 4, (byte)0x88, 0, 0x34, 5, 0x48, 0, 0, // binding sid
 349                 // binding sub-tlvs
 350                 4, (byte)0x8c, 0, 0x14, 0, 0, 0, 0 }, IPV6_A_BYTES, // IPv6 ERO
 351                     new byte[] { 4, (byte)0x8f, 0, 0x14, 0, 0, 0, 0 }, IPV6_B_BYTES // IPv6 ERO backup
 352             );
 353         final SrRange parsedRange = RangeTlvParser.parseSrRange(Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1);
 354
 355         final List<SubTlvs> rangeSubTlvs = new ArrayList<>();
 356         final List<BindingSubTlvs> bindingSubTlvs = new ArrayList<>();
 357         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 358             .setBindingSubTlv(new Ipv6EroCaseBuilder()
 359                 .setIpv6Ero(new Ipv6EroBuilder()
 360                     .setLoose(Boolean.FALSE).setAddress(new Ipv6Address(IPV6_A))
 361                     .build())
 362                 .build())
 363             .build());
 364         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 365             .setBindingSubTlv(new Ipv6EroBackupCaseBuilder()
 366                 .setIpv6EroBackup(new Ipv6EroBackupBuilder()
 367                     .setLoose(Boolean.FALSE).setAddress(new Ipv6Address(IPV6_B))
 368                     .build())
 369                 .build())
 370             .build());
 371         rangeSubTlvs.add(new SubTlvsBuilder().setRangeSubTlv(
 372             new BindingSidTlvCaseBuilder()
 373                 .setWeight(new Weight(Uint8.valueOf(5)))
 374                 .setFlags(BINDING_FLAGS)
 375                 .setBindingSubTlvs(bindingSubTlvs).build()).build());
 376         final SrRange expected = new SrRangeBuilder().setInterArea(Boolean.FALSE).setRangeSize(Uint16.valueOf(5))
 377                 .setSubTlvs(rangeSubTlvs).build();
 378
 379         assertEquals(expected, parsedRange);
 380
 381         final ByteBuf serializedRange = Unpooled.buffer();
 382         RangeTlvParser.serializeSrRange(parsedRange, serializedRange);
 383         assertArrayEquals(tested, ByteArray.getAllBytes(serializedRange));
 384     }
 385
 386     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.2.1
 387     @Test
 388     public void testSrAdjId() {
 389         final byte[] tested = { (byte)0x60, 10, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 390         final byte[] testedOspf = { (byte)0xc0, 10, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 391         final byte[] sidLabel = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 392         final SrAdjIds srAdjId = new SrAdjIdsBuilder()
 393             .setFlags(ISIS_ADJ_FLAGS)
 394             .setWeight(new Weight(Uint8.valueOf(10)))
 395             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(
 396                 Ipv6Util.addressForByteBuf(Unpooled.copiedBuffer(sidLabel))).build()).build();
 397         final SrAdjIds ospfAdj = new SrAdjIdsBuilder()
 398             .setFlags(OSPF_ADJ_FLAGS)
 399             .setWeight(new Weight(Uint8.valueOf(10)))
 400             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(
 401                 Ipv6Util.addressForByteBuf(Unpooled.copiedBuffer(sidLabel))).build()).build();
 402
 403         assertEquals(srAdjId, new SrAdjIdsBuilder(SrLinkAttributesParser.parseAdjacencySegmentIdentifier(
 404             Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1)).build());
 405         assertEquals(ospfAdj, new SrAdjIdsBuilder(SrLinkAttributesParser.parseAdjacencySegmentIdentifier(
 406             Unpooled.wrappedBuffer(testedOspf), ProtocolId.Ospf)).build());
 407         final ByteBuf serializedData = SrLinkAttributesParser.serializeAdjacencySegmentIdentifier(srAdjId);
 408         final ByteBuf serializedOspf = SrLinkAttributesParser.serializeAdjacencySegmentIdentifier(ospfAdj);
 409         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 410         assertArrayEquals(testedOspf, ByteArray.readAllBytes(serializedOspf));
 411     }
 412
 413     @Test
 414     public void testSrLanAdjIdOspf() {
 415         final byte[] tested = { (byte)0x60, 10, 0, 0, 1, 2, 3, 4, 0,  0x5d, (byte)0xc0 };
 416         final SrLanAdjIds srLanAdjId = new SrLanAdjIdsBuilder()
 417             .setFlags(OSPF_LAN_ADJ_FLAGS)
 418             .setWeight(new Weight(Uint8.valueOf(10)))
 419             .setNeighborId(new Ipv4Address("1.2.3.4"))
 420             .setSidLabelIndex(new LocalLabelCaseBuilder()
 421                 .setLocalLabel(new MplsLabel(Uint32.valueOf(24000L)))
 422                 .build())
 423             .build();
 424         assertEquals(srLanAdjId, SrLinkAttributesParser.parseLanAdjacencySegmentIdentifier(
 425             Unpooled.wrappedBuffer(tested), ProtocolId.Ospf));
 426         final ByteBuf serializedData = SrLinkAttributesParser.serializeLanAdjacencySegmentIdentifier(srLanAdjId);
 427         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 428     }
 429
 430     @Test
 431     public void testSrLanAdjIdIsis() {
 432         final byte[] tested = { (byte)0x60, 10, 0, 0, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
 433             15, 16 };
 434         final byte[] sidLabel = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
 435         final byte[] systemId = { 1, 2, 3, 4, 5, 6 };
 436         final SrLanAdjIds srLanAdjId = new SrLanAdjIdsBuilder()
 437             .setFlags(ISIS_ADJ_FLAGS)
 438             .setWeight(new Weight(Uint8.valueOf(10)))
 439             .setIsoSystemId(new IsoSystemIdentifier(systemId))
 440             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(Ipv6Util.addressForByteBuf(
 441                 Unpooled.copiedBuffer(sidLabel))).build()).build();
 442         assertEquals(srLanAdjId, SrLinkAttributesParser.parseLanAdjacencySegmentIdentifier(
 443             Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1));
 444         final ByteBuf serializedData = SrLinkAttributesParser.serializeLanAdjacencySegmentIdentifier(srLanAdjId);
 445         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 446     }
 447 }