bgp/extensions/inet/src/test/java/org/opendaylight/protocol/bgp/inet/codec/Ipv4NlriParserTest.java

   1 /*
   2  * Copyright (c) 2015 Pantheon Technologies s.r.o. 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.inet.codec;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotEquals;
  12 import static org.junit.Assert.assertNotNull;
  13
  14 import com.google.common.collect.Lists;
  15 import io.netty.buffer.ByteBuf;
  16 import io.netty.buffer.Unpooled;
  17 import java.util.ArrayList;
  18 import java.util.List;
  19 import java.util.Optional;
  20 import org.junit.Assert;
  21 import org.junit.Before;
  22 import org.junit.Test;
  23 import org.junit.runner.RunWith;
  24 import org.mockito.Mock;
  25 import org.mockito.Mockito;
  26 import org.mockito.junit.MockitoJUnitRunner;
  27 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
  28 import org.opendaylight.protocol.bgp.parser.spi.MultiPathSupport;
  29 import org.opendaylight.protocol.bgp.parser.spi.PeerSpecificParserConstraint;
  30 import org.opendaylight.protocol.util.Ipv4Util;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.DestinationIpv4Builder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4Case;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv4CaseBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.PathId;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.Attributes;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.AttributesBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1Builder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes2Builder;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlri;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlriBuilder;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlri;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlriBuilder;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.Ipv4AddressFamily;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.UnicastSubsequentAddressFamily;
  50 import org.opendaylight.yangtools.yang.common.Uint32;
  51
  52 @RunWith(MockitoJUnitRunner.StrictStubs.class)
  53 public class Ipv4NlriParserTest {
  54     private static final byte[] MP_NLRI_BYTES = new byte[]{
  55         0x0, 0x0, 0x0, 0x1, 0x18, 0x1, 0x1, 0x1,
  56         0x0, 0x0, 0x0, 0x2, 0x18, 0x1, 0x1, 0x1};
  57     private static final Ipv4Prefix DESTINATION = new Ipv4Prefix("1.1.1.0/24");
  58     private static final ArrayList<Ipv4Prefixes> PREFIXES = Lists.newArrayList(
  59             createIpv4Prefix(1L, DESTINATION),
  60             createIpv4Prefix(2L, DESTINATION));
  61     private final Ipv4NlriParser parser = new Ipv4NlriParser();
  62     private final String ipPrefix1 = "1.2.3.4/32";
  63     private final String ipPrefix2 = "1.2.3.5/32";
  64     private final String additionalIpWD = "1.2.3.6/32";
  65     private final List<Ipv4Prefixes> prefixes = new ArrayList<>();
  66     private final ByteBuf inputBytes = Unpooled.buffer();
  67     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp
  68             .unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWD;
  69     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp
  70             .unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWDWrong;
  71     private DestinationIpv4Case ip4caseAD;
  72     private DestinationIpv4Case ip4caseADWrong;
  73
  74     @Mock
  75     private PeerSpecificParserConstraint constraint;
  76
  77     @Mock
  78     private MultiPathSupport muliPathSupport;
  79
  80     private static Ipv4Prefixes createIpv4Prefix(final long pathId, final Ipv4Prefix prefix) {
  81         return new Ipv4PrefixesBuilder().setPathId(new PathId(Uint32.valueOf(pathId))).setPrefix(prefix).build();
  82     }
  83
  84     @Before
  85     public void setUp() {
  86         final Ipv4Prefix prefix1 = new Ipv4Prefix(this.ipPrefix1);
  87         final Ipv4Prefix prefix2 = new Ipv4Prefix(this.ipPrefix2);
  88         final Ipv4Prefix wrongPrefix = new Ipv4Prefix(this.additionalIpWD);
  89         this.prefixes.add(new Ipv4PrefixesBuilder().setPrefix(prefix1).build());
  90         this.prefixes.add(new Ipv4PrefixesBuilder().setPrefix(prefix2).build());
  91
  92         this.ip4caseWD = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329
  93                 .update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder()
  94                 .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(this.prefixes).build()).build();
  95         this.ip4caseAD = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
  96                 .setIpv4Prefixes(this.prefixes).build()).build();
  97
  98         final ArrayList<Ipv4Prefixes> fakePrefixes = new ArrayList<>(this.prefixes);
  99         fakePrefixes.add(new Ipv4PrefixesBuilder().setPrefix(wrongPrefix).build());
 100         this.ip4caseWDWrong = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329
 101                 .update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder()
 102                 .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(fakePrefixes).build()).build();
 103         this.ip4caseADWrong = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
 104                 .setIpv4Prefixes(fakePrefixes).build()).build();
 105
 106         final ByteBuf buffer1 = Unpooled.buffer(5);
 107         Ipv4Util.writeMinimalPrefix(prefix1, buffer1);
 108         this.inputBytes.writeBytes(buffer1.array());
 109
 110         final ByteBuf buffer2 = Unpooled.buffer(5);
 111         Ipv4Util.writeMinimalPrefix(prefix2, buffer2);
 112         this.inputBytes.writeBytes(buffer2.array());
 113
 114         Mockito.doReturn(Optional.of(this.muliPathSupport)).when(this.constraint).getPeerConstraint(Mockito.any());
 115         Mockito.doReturn(true).when(this.muliPathSupport).isTableTypeSupported(Mockito.any());
 116     }
 117
 118     @Test
 119     public void prefixesTest() {
 120         assertEquals(this.ipPrefix1, this.prefixes.get(0).getPrefix().getValue());
 121         assertEquals(this.ipPrefix2, this.prefixes.get(1).getPrefix().getValue());
 122         assertEquals(2, this.prefixes.size());
 123     }
 124
 125     @Test
 126     public void parseUnreachedNlriTest() {
 127         final MpUnreachNlriBuilder b = new MpUnreachNlriBuilder();
 128         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 129         this.parser.parseNlri(this.inputBytes, b, null);
 130         assertNotNull("Withdrawn routes, destination type should not be null", b.getWithdrawnRoutes()
 131                 .getDestinationType());
 132
 133         assertEquals(this.ip4caseWD.hashCode(), b.getWithdrawnRoutes().getDestinationType().hashCode());
 134         assertNotEquals(this.ip4caseWDWrong.hashCode(), b.getWithdrawnRoutes().getDestinationType().hashCode());
 135
 136         assertEquals(this.ip4caseWD.toString(), b.getWithdrawnRoutes().getDestinationType().toString());
 137         assertNotEquals(this.ip4caseWDWrong.toString(), b.getWithdrawnRoutes().getDestinationType().toString());
 138     }
 139
 140     @Test
 141     public void parseReachedNlriTest() throws BGPParsingException {
 142         final MpReachNlriBuilder b = new MpReachNlriBuilder();
 143         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 144         this.parser.parseNlri(this.inputBytes, b, null);
 145         assertNotNull("Advertized routes, destination type should not be null", b.getAdvertizedRoutes()
 146                 .getDestinationType());
 147
 148         assertEquals(this.ip4caseAD.hashCode(), b.getAdvertizedRoutes().getDestinationType().hashCode());
 149         assertNotEquals(this.ip4caseADWrong.hashCode(), b.getAdvertizedRoutes().getDestinationType().hashCode());
 150
 151         assertEquals(this.ip4caseAD.toString(), b.getAdvertizedRoutes().getDestinationType().toString());
 152         assertNotEquals(this.ip4caseADWrong.toString(), b.getAdvertizedRoutes().getDestinationType().toString());
 153     }
 154
 155     @Test
 156     public void parseReachNlriMultiPathTest() {
 157         final MpReachNlri mpReachNlri = new MpReachNlriBuilder().setAdvertizedRoutes(
 158                 new AdvertizedRoutesBuilder().setDestinationType(
 159                         new DestinationIpv4CaseBuilder().setDestinationIpv4(
 160                                 new DestinationIpv4Builder().setIpv4Prefixes(
 161                                         PREFIXES).build()).build()).build()).build();
 162         final MpReachNlriBuilder mpReachNlriBuilder = new MpReachNlriBuilder();
 163         mpReachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 164         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpReachNlriBuilder, this.constraint);
 165         mpReachNlriBuilder.setAfi(null).setSafi(null);
 166         Assert.assertEquals(mpReachNlri, mpReachNlriBuilder.build());
 167
 168         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 169         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 170         final Attributes attributes = new AttributesBuilder()
 171                 .addAugmentation(new Attributes1Builder().setMpReachNlri(mpReachNlri).build())
 172                 .build();
 173         serializer.serializeAttribute(attributes, output);
 174         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 175     }
 176
 177     @Test
 178     public void parseUnreachNlriMultiPathTest() {
 179         final MpUnreachNlri mpUnreachNlri = new MpUnreachNlriBuilder().setWithdrawnRoutes(
 180                 new WithdrawnRoutesBuilder().setDestinationType(
 181                         new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update
 182                                 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type
 183                                 .DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
 184                                 .setIpv4Prefixes(PREFIXES).build()).build()).build()).build();
 185         final MpUnreachNlriBuilder mpUnreachNlriBuilder = new MpUnreachNlriBuilder();
 186         mpUnreachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 187         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpUnreachNlriBuilder, this.constraint);
 188         mpUnreachNlriBuilder.setAfi(null).setSafi(null);
 189         Assert.assertEquals(mpUnreachNlri, mpUnreachNlriBuilder.build());
 190
 191         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 192         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 193         final Attributes attributes = new AttributesBuilder()
 194                 .addAugmentation(new Attributes2Builder().setMpUnreachNlri(mpUnreachNlri).build())
 195                 .build();
 196         serializer.serializeAttribute(attributes, output);
 197         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 198     }
 199 }