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.Ipv4AddressNoZone;
  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.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.types.rev171204.Uint24;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.ProtocolId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.attribute.SrAdjIds;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.attribute.SrAdjIdsBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.attribute.SrLanAdjIds;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.linkstate.attribute.SrLanAdjIdsBuilder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.state.SrAlgorithm;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.state.SrAlgorithmBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.state.SrCapabilities;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.node.state.SrCapabilitiesBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.Ipv6SrPrefix;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.Ipv6SrPrefixBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.SrPrefix;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.SrPrefixBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.SrRange;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev200120.prefix.state.SrRangeBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.Algorithm;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.Weight;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.IsisAdjFlagsCase;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.IsisAdjFlagsCaseBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.OspfAdjFlagsCase;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.OspfAdjFlagsCaseBuilder;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.isis.adj.flags._case.IsisAdjFlagsBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.adj.flags.flags.ospf.adj.flags._case.OspfAdjFlagsBuilder;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sid.tlv.BindingSubTlvs;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sid.tlv.BindingSubTlvsBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sid.tlv.flags.IsisBindingFlagsCase;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sid.tlv.flags.IsisBindingFlagsCaseBuilder;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.EroMetricCaseBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.Ipv4EroBackupCaseBuilder;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.Ipv4EroCaseBuilder;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.Ipv6EroBackupCaseBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.Ipv6EroCaseBuilder;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.PrefixSidCaseBuilder;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.SidLabelCaseBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.UnnumberedInterfaceIdBackupEroCaseBuilder;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.UnnumberedInterfaceIdEroCaseBuilder;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.ipv4.ero._case.Ipv4EroBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.ipv4.ero.backup._case.Ipv4EroBackupBuilder;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.ipv6.ero._case.Ipv6EroBuilder;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.ipv6.ero.backup._case.Ipv6EroBackupBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.prefix.sid._case.PrefixSidBuilder;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.unnumbered._interface.id.backup.ero._case.UnnumberedInterfaceIdBackupEroBuilder;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.binding.sub.tlvs.binding.sub.tlv.unnumbered._interface.id.ero._case.UnnumberedInterfaceIdEroBuilder;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.IsisPrefixFlagsCase;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.IsisPrefixFlagsCaseBuilder;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.OspfPrefixFlagsCase;
  83 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.OspfPrefixFlagsCaseBuilder;
  84 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.isis.prefix.flags._case.IsisPrefixFlagsBuilder;
  85 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.prefix.sid.tlv.flags.ospf.prefix.flags._case.OspfPrefixFlagsBuilder;
  86 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.sub.tlvs.range.sub.tlv.BindingSidTlvCaseBuilder;
  87 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.sub.tlvs.range.sub.tlv.PrefixSidTlvCaseBuilder;
  88 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.sub.tlvs.range.sub.tlv.SidLabelTlvCaseBuilder;
  89 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.sub.tlvs.range.sub.tlv.prefix.sid.tlv._case.PrefixSidTlvBuilder;
  90 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.tlv.SubTlvs;
  91 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.range.tlv.SubTlvsBuilder;
  92 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.sid.label.index.sid.label.index.Ipv6AddressCaseBuilder;
  93 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.sid.label.index.sid.label.index.LocalLabelCaseBuilder;
  94 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev200120.sid.label.index.sid.label.index.SidCaseBuilder;
  95 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.IsoSystemIdentifier;
  96 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.MplsLabel;
  97 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.TeMetric;
  98 import org.opendaylight.yangtools.yang.common.Uint16;
  99 import org.opendaylight.yangtools.yang.common.Uint32;
 100 import org.opendaylight.yangtools.yang.common.Uint8;
 101
 102 public class SrAttributeParserTest {
 103
 104     private static final byte[] IPV6_A_BYTES = { 0x20, 1, 0x0d, (byte) 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 };
 105     private static final Ipv6Address IPV6_A = new Ipv6Address("2001:db8::1");
 106     private static final byte[] IPV6_B_BYTES = { 0x20, 1, 0x0d, (byte) 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 };
 107     private static final Ipv6Address IPV6_B = new Ipv6Address("2001:db8::2");
 108
 109     private static final IsisPrefixFlagsCase ISIS_PREFIX_FLAGS = new IsisPrefixFlagsCaseBuilder()
 110             .setIsisPrefixFlags(new IsisPrefixFlagsBuilder()
 111                 .setReadvertisement(Boolean.TRUE)
 112                 .setNodeSid(Boolean.FALSE)
 113                 .setNoPhp(Boolean.TRUE)
 114                 .setExplicitNull(Boolean.FALSE)
 115                 .build())
 116             .build();
 117     private static final OspfPrefixFlagsCase OSPF_PREFIX_FLAGS = new OspfPrefixFlagsCaseBuilder()
 118             .setOspfPrefixFlags(new OspfPrefixFlagsBuilder()
 119                 .setNoPhp(Boolean.FALSE)
 120                 .setMappingServer(Boolean.TRUE)
 121                 .setExplicitNull(Boolean.FALSE)
 122                 .build())
 123             .build();
 124
 125     private static final IsisBindingFlagsCase BINDING_FLAGS = new IsisBindingFlagsCaseBuilder()
 126         .setAddressFamily(Boolean.FALSE)
 127         .setMirrorContext(Boolean.TRUE)
 128         .setSpreadTlv(Boolean.FALSE)
 129         .setLeakedFromLevel2(Boolean.FALSE)
 130         .setAttachedFlag(Boolean.TRUE)
 131         .build();
 132
 133     private static final IsisAdjFlagsCase ISIS_ADJ_FLAGS = new IsisAdjFlagsCaseBuilder()
 134             .setIsisAdjFlags(new IsisAdjFlagsBuilder()
 135                 .setAddressFamily(Boolean.FALSE)
 136                 .setBackup(Boolean.TRUE)
 137                 .setSet(Boolean.FALSE)
 138                 .build())
 139             .build();
 140     private static final OspfAdjFlagsCase OSPF_ADJ_FLAGS = new OspfAdjFlagsCaseBuilder()
 141             .setOspfAdjFlags(new OspfAdjFlagsBuilder()
 142                 .setBackup(Boolean.TRUE)
 143                 .setSet(Boolean.FALSE)
 144                 .build())
 145             .build();
 146     private static final OspfAdjFlagsCase OSPF_LAN_ADJ_FLAGS = new OspfAdjFlagsCaseBuilder()
 147             .setOspfAdjFlags(new OspfAdjFlagsBuilder()
 148                 .setBackup(Boolean.FALSE)
 149                 .setSet(Boolean.FALSE)
 150                 .build())
 151             .build();
 152
 153     @Before
 154     public void setUp() throws Exception {
 155         final BGPActivator act = new BGPActivator(ServiceLoaderRSVPExtensionProviderContext.getSingletonInstance());
 156         final BGPExtensionProviderContext context = new SimpleBGPExtensionProviderContext();
 157         act.start(context);
 158     }
 159
 160     @Test
 161     public void testSrAlgorithm() {
 162         final byte[] bytes = { 0 };
 163         final SrAlgorithm alg = new SrAlgorithmBuilder().setAlgorithms(Lists.newArrayList(Algorithm.ShortestPathFirst))
 164                 .build();
 165         final SrAlgorithm empty = new SrAlgorithmBuilder().setAlgorithms(Collections.emptyList()).build();
 166         assertEquals(alg, SrNodeAttributesParser.parseSrAlgorithms(Unpooled.wrappedBuffer(bytes)));
 167         final ByteBuf b = Unpooled.buffer();
 168         assertEquals(empty, SrNodeAttributesParser.parseSrAlgorithms(b));
 169         SrNodeAttributesParser.serializeSrAlgorithms(alg, b);
 170         assertArrayEquals(bytes, ByteArray.readAllBytes(b));
 171
 172         SrNodeAttributesParser.serializeSrAlgorithms(empty, b);
 173         assertEquals(0, b.readableBytes());
 174     }
 175
 176     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.1.1
 177     @Test
 178     public void testSrCapabilities() {
 179         final byte[] bytesIsis = { (byte)0xC0, 0, 0, 0, 10, 4, (byte)0x89, 0, 4, 1, 2, 3, 4 };
 180         final byte[] bytesOspf = { 0, 0, 0, 0, 10, 4, (byte)0x89, 0, 4, 1, 2, 3, 4 };
 181         final SrCapabilities capsIsis = new SrCapabilitiesBuilder().setMplsIpv4(Boolean.TRUE).setMplsIpv6(Boolean.TRUE)
 182                 .setSrIpv6(Boolean.FALSE)
 183                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 184                 .setRangeSize(new Uint24(Uint32.TEN)).build();
 185         final SrCapabilities capsOspf = new SrCapabilitiesBuilder().setMplsIpv4(Boolean.FALSE)
 186                 .setMplsIpv6(Boolean.FALSE).setSrIpv6(Boolean.FALSE)
 187                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 188                 .setRangeSize(new Uint24(Uint32.TEN)).build();
 189         assertEquals(capsIsis,
 190             SrNodeAttributesParser.parseSrCapabilities(Unpooled.wrappedBuffer(bytesIsis), ProtocolId.IsisLevel1));
 191         assertEquals(capsOspf,
 192             SrNodeAttributesParser.parseSrCapabilities(Unpooled.wrappedBuffer(bytesIsis), ProtocolId.Ospf));
 193         final ByteBuf encodedIsis = Unpooled.buffer();
 194         final ByteBuf encodedOspf = Unpooled.buffer();
 195         SrNodeAttributesParser.serializeSrCapabilities(capsIsis, encodedIsis);
 196         SrNodeAttributesParser.serializeSrCapabilities(capsOspf, encodedOspf);
 197         assertArrayEquals(bytesIsis, ByteArray.readAllBytes(encodedIsis));
 198         assertArrayEquals(bytesOspf, ByteArray.readAllBytes(encodedOspf));
 199     }
 200
 201     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.3.1
 202     @Test
 203     public void testSrPrefix() {
 204         final byte[] bytes = { (byte)0xA0, 0, 0, 0, 1, 2, 3, 4 };
 205         final byte[] bytesOspf = { (byte)0x20, 0, 0, 0, 1, 2, 3, 4 };
 206         final SrPrefix prefixIsis = new SrPrefixBuilder()
 207             .setFlags(ISIS_PREFIX_FLAGS)
 208             .setAlgorithm(Algorithm.ShortestPathFirst)
 209             .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 210             .build();
 211         final SrPrefix prefixOspf = new SrPrefixBuilder()
 212             .setFlags(OSPF_PREFIX_FLAGS)
 213             .setAlgorithm(Algorithm.ShortestPathFirst)
 214             .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 215             .build();
 216         assertEquals(prefixIsis,
 217             SrPrefixAttributesParser.parseSrPrefix(Unpooled.wrappedBuffer(bytes), ProtocolId.IsisLevel1));
 218         assertEquals(prefixOspf,
 219             SrPrefixAttributesParser.parseSrPrefix(Unpooled.wrappedBuffer(bytes), ProtocolId.Ospf));
 220         final ByteBuf serializedPrefix = Unpooled.buffer();
 221         final ByteBuf serializedPrefixOspf = Unpooled.buffer();
 222         SrPrefixAttributesParser.serializeSrPrefix(prefixIsis, serializedPrefix);
 223         SrPrefixAttributesParser.serializeSrPrefix(prefixOspf, serializedPrefixOspf);
 224         assertArrayEquals(bytes, ByteArray.readAllBytes(serializedPrefix));
 225         assertArrayEquals(bytesOspf, ByteArray.readAllBytes(serializedPrefixOspf));
 226     }
 227
 228     // https://tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-02#section-2.3.2
 229     @Test
 230     public void testIpv6SrPrefix() {
 231         final byte[] bytes = { 0, 0, 0};
 232         final Ipv6SrPrefix prefix = new Ipv6SrPrefixBuilder().setAlgorithm(Algorithm.ShortestPathFirst).build();
 233         assertEquals(prefix, Ipv6SrPrefixAttributesParser.parseSrIpv6Prefix(Unpooled.wrappedBuffer(bytes)));
 234         final ByteBuf serializedPrefix = Unpooled.buffer();
 235         Ipv6SrPrefixAttributesParser.serializeIpv6SrPrefix(prefix, serializedPrefix);
 236         assertArrayEquals(bytes, ByteArray.readAllBytes(serializedPrefix));
 237     }
 238
 239     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.3.2
 240     @Test
 241     public void testRangeTlv() {
 242         final byte[] tested = {
 243             0, 0, 0, 5,
 244             4, (byte)0x89, 0, 4, 1, 2, 3, 4, // sid
 245             4, (byte)0x86, 0, 7, (byte)0xac, 1, 0, 0, 1, 2, 0, // prefix + mpls label
 246             4, (byte)0x88, 0, 0x58, 5, 0x48, 0, 0, // binding sid
 247             // binding sub-tlvs
 248             4, (byte)0x86, 0, 8, (byte)0xa0, 1, 0, 0, 1, 2, 3, 4, // prefix
 249             4, (byte)0x89, 0, 4, 1, 2, 3, 4, // sid
 250             4, (byte)0x8a, 0, 4, 0, 0, 0, 6, // ero metric
 251             4, (byte)0x8b, 0, 8, 0, 0, 0, 0, 9, 8, 7, 6,  // IPv4 ERO
 252             4, (byte)0x8d, 0, 0x0c, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, // Unnumbered Interface ID ERO Sub-TLV
 253             4, (byte)0x8e, 0, 8, 0, 0, 0, 0, 3, 4, 5, 6, // IPv4 ERO backup
 254             4, (byte)0x90, 0, 0x0c, 0, 0, 0, 0, 3, 3, 3, 3, 4, 4, 4, 4, // Unnumbered Interface ID ERO Sub-TLV Backup
 255         };
 256         final SrRange parsedRange = RangeTlvParser.parseSrRange(Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1);
 257
 258         final List<SubTlvs> rangeSubTlvs = new ArrayList<>();
 259         addSubTlvs(rangeSubTlvs);
 260         final SrRange expected = new SrRangeBuilder().setInterArea(Boolean.FALSE).setRangeSize(Uint16.valueOf(5))
 261                 .setSubTlvs(rangeSubTlvs).build();
 262
 263         assertEquals(expected, parsedRange);
 264
 265         final ByteBuf serializedRange = Unpooled.buffer();
 266         RangeTlvParser.serializeSrRange(parsedRange, serializedRange);
 267         assertArrayEquals(tested, ByteArray.getAllBytes(serializedRange));
 268     }
 269
 270     private static void addSubTlvs(final List<SubTlvs> rangeSubTlvs) {
 271         rangeSubTlvs.add(new SubTlvsBuilder()
 272             .setRangeSubTlv(new SidLabelTlvCaseBuilder()
 273                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 274                 .build())
 275             .build());
 276         rangeSubTlvs.add(new SubTlvsBuilder()
 277             .setRangeSubTlv(new PrefixSidTlvCaseBuilder()
 278                 .setPrefixSidTlv(new PrefixSidTlvBuilder()
 279                     .setFlags(ISIS_PREFIX_FLAGS)
 280                     .setAlgorithm(Algorithm.StrictShortestPathFirst)
 281                     .setSidLabelIndex(new LocalLabelCaseBuilder()
 282                         .setLocalLabel(new MplsLabel(Uint32.valueOf(66048)))
 283                         .build())
 284                     .build())
 285                 .build())
 286             .build());
 287         final List<BindingSubTlvs> bindingSubTlvs = new ArrayList<>();
 288         addBindingSubTlvs(bindingSubTlvs);
 289         rangeSubTlvs.add(new SubTlvsBuilder().setRangeSubTlv(
 290             new BindingSidTlvCaseBuilder()
 291                 .setWeight(new Weight(Uint8.valueOf(5)))
 292                 .setFlags(BINDING_FLAGS)
 293                 .setBindingSubTlvs(bindingSubTlvs).build()).build());
 294     }
 295
 296     private static void addBindingSubTlvs(final List<BindingSubTlvs> bindingSubTlvs) {
 297         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 298             .setBindingSubTlv(new PrefixSidCaseBuilder()
 299                 .setPrefixSid(new PrefixSidBuilder()
 300                     .setFlags(ISIS_PREFIX_FLAGS)
 301                     .setAlgorithm(Algorithm.StrictShortestPathFirst)
 302                     .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 303                     .build())
 304                 .build())
 305             .build());
 306         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 307             .setBindingSubTlv(new SidLabelCaseBuilder()
 308                 .setSidLabelIndex(new SidCaseBuilder().setSid(Uint32.valueOf(16909060L)).build())
 309                 .build())
 310             .build());
 311         bindingSubTlvs.add(new BindingSubTlvsBuilder().setBindingSubTlv(
 312             new EroMetricCaseBuilder().setEroMetric(new TeMetric(Uint32.valueOf(6))).build()).build());
 313         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 314             .setBindingSubTlv(new Ipv4EroCaseBuilder()
 315                 .setIpv4Ero(new Ipv4EroBuilder()
 316                     .setLoose(Boolean.FALSE)
 317                     .setAddress(new Ipv4AddressNoZone("9.8.7.6"))
 318                     .build())
 319                 .build())
 320             .build());
 321         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 322             .setBindingSubTlv(new UnnumberedInterfaceIdEroCaseBuilder()
 323                 .setUnnumberedInterfaceIdEro(new UnnumberedInterfaceIdEroBuilder()
 324                     .setLoose(Boolean.FALSE)
 325                     .setRouterId(Uint32.valueOf(16843009L))
 326                     .setInterfaceId(Uint32.valueOf(33686018L))
 327                     .build())
 328                 .build())
 329             .build());
 330         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 331             .setBindingSubTlv(new Ipv4EroBackupCaseBuilder()
 332                 .setIpv4EroBackup(new Ipv4EroBackupBuilder()
 333                     .setLoose(Boolean.FALSE).setAddress(new Ipv4AddressNoZone("3.4.5.6"))
 334                     .build())
 335                 .build())
 336             .build());
 337         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 338             .setBindingSubTlv(new UnnumberedInterfaceIdBackupEroCaseBuilder()
 339                 .setUnnumberedInterfaceIdBackupEro(new UnnumberedInterfaceIdBackupEroBuilder()
 340                     .setLoose(Boolean.FALSE)
 341                     .setRouterId(Uint32.valueOf(50529027L))
 342                     .setInterfaceId(Uint32.valueOf(67372036L))
 343                     .build())
 344                 .build())
 345             .build());
 346     }
 347
 348     @Test
 349     public void testRangeTlvIpv6() {
 350         final byte[] tested = Bytes.concat(
 351             new byte[] {
 352                 0, 0, 0, 5,
 353                 4, (byte)0x88, 0, 0x34, 5, 0x48, 0, 0, // binding sid
 354                 // binding sub-tlvs
 355                 4, (byte)0x8c, 0, 0x14, 0, 0, 0, 0 }, IPV6_A_BYTES, // IPv6 ERO
 356                     new byte[] { 4, (byte)0x8f, 0, 0x14, 0, 0, 0, 0 }, IPV6_B_BYTES // IPv6 ERO backup
 357             );
 358         final SrRange parsedRange = RangeTlvParser.parseSrRange(Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1);
 359
 360         final List<SubTlvs> rangeSubTlvs = new ArrayList<>();
 361         final List<BindingSubTlvs> bindingSubTlvs = new ArrayList<>();
 362         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 363             .setBindingSubTlv(new Ipv6EroCaseBuilder()
 364                 .setIpv6Ero(new Ipv6EroBuilder()
 365                     .setLoose(Boolean.FALSE).setAddress(new Ipv6AddressNoZone(IPV6_A))
 366                     .build())
 367                 .build())
 368             .build());
 369         bindingSubTlvs.add(new BindingSubTlvsBuilder()
 370             .setBindingSubTlv(new Ipv6EroBackupCaseBuilder()
 371                 .setIpv6EroBackup(new Ipv6EroBackupBuilder()
 372                     .setLoose(Boolean.FALSE).setAddress(new Ipv6AddressNoZone(IPV6_B))
 373                     .build())
 374                 .build())
 375             .build());
 376         rangeSubTlvs.add(new SubTlvsBuilder().setRangeSubTlv(
 377             new BindingSidTlvCaseBuilder()
 378                 .setWeight(new Weight(Uint8.valueOf(5)))
 379                 .setFlags(BINDING_FLAGS)
 380                 .setBindingSubTlvs(bindingSubTlvs).build()).build());
 381         final SrRange expected = new SrRangeBuilder().setInterArea(Boolean.FALSE).setRangeSize(Uint16.valueOf(5))
 382                 .setSubTlvs(rangeSubTlvs).build();
 383
 384         assertEquals(expected, parsedRange);
 385
 386         final ByteBuf serializedRange = Unpooled.buffer();
 387         RangeTlvParser.serializeSrRange(parsedRange, serializedRange);
 388         assertArrayEquals(tested, ByteArray.getAllBytes(serializedRange));
 389     }
 390
 391     // tools.ietf.org/html/draft-gredler-idr-bgp-ls-segment-routing-ext-00#section-2.2.1
 392     @Test
 393     public void testSrAdjId() {
 394         final byte[] tested = { (byte)0x60, 10, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 395         final byte[] testedOspf = { (byte)0xc0, 10, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 396         final byte[] sidLabel = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
 397         final SrAdjIds srAdjId = new SrAdjIdsBuilder()
 398             .setFlags(ISIS_ADJ_FLAGS)
 399             .setWeight(new Weight(Uint8.TEN))
 400             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(
 401                 Ipv6Util.addressForByteBuf(Unpooled.copiedBuffer(sidLabel))).build()).build();
 402         final SrAdjIds ospfAdj = new SrAdjIdsBuilder()
 403             .setFlags(OSPF_ADJ_FLAGS)
 404             .setWeight(new Weight(Uint8.TEN))
 405             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(
 406                 Ipv6Util.addressForByteBuf(Unpooled.copiedBuffer(sidLabel))).build()).build();
 407
 408         assertEquals(srAdjId, new SrAdjIdsBuilder(SrLinkAttributesParser.parseAdjacencySegmentIdentifier(
 409             Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1)).build());
 410         assertEquals(ospfAdj, new SrAdjIdsBuilder(SrLinkAttributesParser.parseAdjacencySegmentIdentifier(
 411             Unpooled.wrappedBuffer(testedOspf), ProtocolId.Ospf)).build());
 412         final ByteBuf serializedData = SrLinkAttributesParser.serializeAdjacencySegmentIdentifier(srAdjId);
 413         final ByteBuf serializedOspf = SrLinkAttributesParser.serializeAdjacencySegmentIdentifier(ospfAdj);
 414         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 415         assertArrayEquals(testedOspf, ByteArray.readAllBytes(serializedOspf));
 416     }
 417
 418     @Test
 419     public void testSrLanAdjIdOspf() {
 420         final byte[] tested = { (byte)0x60, 10, 0, 0, 1, 2, 3, 4, 0,  0x5d, (byte)0xc0 };
 421         final SrLanAdjIds srLanAdjId = new SrLanAdjIdsBuilder()
 422             .setFlags(OSPF_LAN_ADJ_FLAGS)
 423             .setWeight(new Weight(Uint8.TEN))
 424             .setNeighborId(new Ipv4AddressNoZone("1.2.3.4"))
 425             .setSidLabelIndex(new LocalLabelCaseBuilder()
 426                 .setLocalLabel(new MplsLabel(Uint32.valueOf(24000L)))
 427                 .build())
 428             .build();
 429         assertEquals(srLanAdjId, SrLinkAttributesParser.parseLanAdjacencySegmentIdentifier(
 430             Unpooled.wrappedBuffer(tested), ProtocolId.Ospf));
 431         final ByteBuf serializedData = SrLinkAttributesParser.serializeLanAdjacencySegmentIdentifier(srLanAdjId);
 432         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 433     }
 434
 435     @Test
 436     public void testSrLanAdjIdIsis() {
 437         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,
 438             15, 16 };
 439         final byte[] sidLabel = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
 440         final byte[] systemId = { 1, 2, 3, 4, 5, 6 };
 441         final SrLanAdjIds srLanAdjId = new SrLanAdjIdsBuilder()
 442             .setFlags(ISIS_ADJ_FLAGS)
 443             .setWeight(new Weight(Uint8.TEN))
 444             .setIsoSystemId(new IsoSystemIdentifier(systemId))
 445             .setSidLabelIndex(new Ipv6AddressCaseBuilder().setIpv6Address(Ipv6Util.addressForByteBuf(
 446                 Unpooled.copiedBuffer(sidLabel))).build()).build();
 447         assertEquals(srLanAdjId, SrLinkAttributesParser.parseLanAdjacencySegmentIdentifier(
 448             Unpooled.wrappedBuffer(tested), ProtocolId.IsisLevel1));
 449         final ByteBuf serializedData = SrLinkAttributesParser.serializeLanAdjacencySegmentIdentifier(srLanAdjId);
 450         assertArrayEquals(tested, ByteArray.readAllBytes(serializedData));
 451     }
 452 }