bgp/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
   9 package org.opendaylight.protocol.bgp.inet.codec;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertNotNull;
  14 import static org.junit.Assert.assertTrue;
  15
  16 import com.google.common.collect.Lists;
  17 import io.netty.buffer.ByteBuf;
  18 import io.netty.buffer.Unpooled;
  19 import java.util.ArrayList;
  20 import java.util.List;
  21 import java.util.Optional;
  22 import org.junit.Assert;
  23 import org.junit.Before;
  24 import org.junit.Test;
  25 import org.mockito.Mock;
  26 import org.mockito.Mockito;
  27 import org.mockito.MockitoAnnotations;
  28 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
  29 import org.opendaylight.protocol.bgp.parser.spi.MultiPathSupport;
  30 import org.opendaylight.protocol.bgp.parser.spi.PeerSpecificParserConstraint;
  31 import org.opendaylight.protocol.util.ByteBufWriteUtil;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.DestinationIpv4Builder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
  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.DestinationIpv4Case;
  37 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;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.PathId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.Attributes;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev180329.path.attributes.AttributesBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes1Builder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes2;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.Attributes2Builder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlri;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpReachNlriBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlri;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.MpUnreachNlriBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev180329.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.Ipv4AddressFamily;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev180329.UnicastSubsequentAddressFamily;
  53
  54 public class Ipv4NlriParserTest {
  55     private static final byte[] MP_NLRI_BYTES = new byte[]{
  56         0x0, 0x0, 0x0, 0x1, 0x18, 0x1, 0x1, 0x1,
  57         0x0, 0x0, 0x0, 0x2, 0x18, 0x1, 0x1, 0x1};
  58     private static final Ipv4Prefix DESTINATION = new Ipv4Prefix("1.1.1.0/24");
  59     private static final ArrayList<Ipv4Prefixes> PREFIXES = Lists.newArrayList(
  60             createIpv4Prefix(1L, DESTINATION),
  61             createIpv4Prefix(2L, DESTINATION));
  62     private final Ipv4NlriParser parser = new Ipv4NlriParser();
  63     private final String ipPrefix1 = "1.2.3.4/32";
  64     private final String ipPrefix2 = "1.2.3.5/32";
  65     private final String additionalIpWD = "1.2.3.6/32";
  66     private final List<Ipv4Prefixes> prefixes = new ArrayList<>();
  67     private final ByteBuf inputBytes = Unpooled.buffer();
  68     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp
  69             .unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWD;
  70     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update.attributes.mp
  71             .unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWDWrong;
  72     private DestinationIpv4Case ip4caseAD;
  73     private DestinationIpv4Case ip4caseADWrong;
  74
  75     @Mock
  76     private PeerSpecificParserConstraint constraint;
  77
  78     @Mock
  79     private MultiPathSupport muliPathSupport;
  80
  81     private static Ipv4Prefixes createIpv4Prefix(final long pathId, final Ipv4Prefix prefix) {
  82         return new Ipv4PrefixesBuilder().setPathId(new PathId(pathId)).setPrefix(prefix).build();
  83     }
  84
  85     @Before
  86     public void setUp() {
  87         MockitoAnnotations.initMocks(this);
  88         final Ipv4Prefix prefix1 = new Ipv4Prefix(this.ipPrefix1);
  89         final Ipv4Prefix prefix2 = new Ipv4Prefix(this.ipPrefix2);
  90         final Ipv4Prefix wrongPrefix = new Ipv4Prefix(this.additionalIpWD);
  91         this.prefixes.add(new Ipv4PrefixesBuilder().setPrefix(prefix1).build());
  92         this.prefixes.add(new Ipv4PrefixesBuilder().setPrefix(prefix2).build());
  93
  94         this.ip4caseWD = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329
  95                 .update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder()
  96                 .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(this.prefixes).build()).build();
  97         this.ip4caseAD = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
  98                 .setIpv4Prefixes(this.prefixes).build()).build();
  99
 100         final ArrayList<Ipv4Prefixes> fakePrefixes = new ArrayList<>(this.prefixes);
 101         fakePrefixes.add(new Ipv4PrefixesBuilder().setPrefix(wrongPrefix).build());
 102         this.ip4caseWDWrong = new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329
 103                 .update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder()
 104                 .setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(fakePrefixes).build()).build();
 105         this.ip4caseADWrong = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
 106                 .setIpv4Prefixes(fakePrefixes).build()).build();
 107
 108         final ByteBuf buffer1 = Unpooled.buffer(5);
 109         ByteBufWriteUtil.writeMinimalPrefix(prefix1, buffer1);
 110         this.inputBytes.writeBytes(buffer1.array());
 111
 112         final ByteBuf buffer2 = Unpooled.buffer(5);
 113         ByteBufWriteUtil.writeMinimalPrefix(prefix2, buffer2);
 114         this.inputBytes.writeBytes(buffer2.array());
 115
 116         Mockito.doReturn(Optional.of(this.muliPathSupport)).when(this.constraint).getPeerConstraint(Mockito.any());
 117         Mockito.doReturn(true).when(this.muliPathSupport).isTableTypeSupported(Mockito.any());
 118     }
 119
 120     @Test
 121     public void prefixesTest() {
 122         assertEquals(this.ipPrefix1, this.prefixes.get(0).getPrefix().getValue());
 123         assertEquals(this.ipPrefix2, this.prefixes.get(1).getPrefix().getValue());
 124         assertEquals(2, this.prefixes.size());
 125     }
 126
 127     @Test
 128     public void parseUnreachedNlriTest() {
 129         final MpUnreachNlriBuilder b = new MpUnreachNlriBuilder();
 130         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 131         this.parser.parseNlri(this.inputBytes, b);
 132         assertNotNull("Withdrawn routes, destination type should not be null", b.getWithdrawnRoutes()
 133                 .getDestinationType());
 134
 135         assertEquals(this.ip4caseWD.hashCode(), b.getWithdrawnRoutes().getDestinationType().hashCode());
 136         assertFalse(this.ip4caseWDWrong.hashCode() == b.getWithdrawnRoutes().getDestinationType().hashCode());
 137
 138         assertTrue(this.ip4caseWD.toString().equals(b.getWithdrawnRoutes().getDestinationType().toString()));
 139         assertFalse(this.ip4caseWDWrong.toString().equals(b.getWithdrawnRoutes().getDestinationType().toString()));
 140     }
 141
 142     @Test
 143     public void parseReachedNlriTest() throws BGPParsingException {
 144         final MpReachNlriBuilder b = new MpReachNlriBuilder();
 145         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 146         this.parser.parseNlri(this.inputBytes, b);
 147         assertNotNull("Advertized routes, destination type should not be null", b.getAdvertizedRoutes()
 148                 .getDestinationType());
 149
 150         assertEquals(this.ip4caseAD.hashCode(), b.getAdvertizedRoutes().getDestinationType().hashCode());
 151         assertFalse(this.ip4caseADWrong.hashCode() == b.getAdvertizedRoutes().getDestinationType().hashCode());
 152
 153         assertTrue(this.ip4caseAD.toString().equals(b.getAdvertizedRoutes().getDestinationType().toString()));
 154         assertFalse(this.ip4caseADWrong.toString().equals(b.getAdvertizedRoutes().getDestinationType().toString()));
 155     }
 156
 157     @Test
 158     public void parseReachNlriMultiPathTest() {
 159         final MpReachNlri mpReachNlri = new MpReachNlriBuilder().setAdvertizedRoutes(
 160                 new AdvertizedRoutesBuilder().setDestinationType(
 161                         new DestinationIpv4CaseBuilder().setDestinationIpv4(
 162                                 new DestinationIpv4Builder().setIpv4Prefixes(
 163                                         PREFIXES).build()).build()).build()).build();
 164         final MpReachNlriBuilder mpReachNlriBuilder = new MpReachNlriBuilder();
 165         mpReachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 166         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpReachNlriBuilder, this.constraint);
 167         mpReachNlriBuilder.setAfi(null).setSafi(null);
 168         Assert.assertEquals(mpReachNlri, mpReachNlriBuilder.build());
 169
 170         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 171         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 172         final Attributes attributes = new AttributesBuilder().addAugmentation(Attributes1.class,
 173                 new Attributes1Builder().setMpReachNlri(mpReachNlri).build()).build();
 174         serializer.serializeAttribute(attributes, output);
 175         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 176     }
 177
 178     @Test
 179     public void parseUnreachNlriMultiPathTest() {
 180         final MpUnreachNlri mpUnreachNlri = new MpUnreachNlriBuilder().setWithdrawnRoutes(
 181                 new WithdrawnRoutesBuilder().setDestinationType(
 182                         new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev180329.update
 183                                 .attributes.mp.unreach.nlri.withdrawn.routes.destination.type
 184                                 .DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder()
 185                                 .setIpv4Prefixes(PREFIXES).build()).build()).build()).build();
 186         final MpUnreachNlriBuilder mpUnreachNlriBuilder = new MpUnreachNlriBuilder();
 187         mpUnreachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 188         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpUnreachNlriBuilder, this.constraint);
 189         mpUnreachNlriBuilder.setAfi(null).setSafi(null);
 190         Assert.assertEquals(mpUnreachNlri, mpUnreachNlriBuilder.build());
 191
 192         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 193         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 194         final Attributes attributes = new AttributesBuilder().addAugmentation(Attributes2.class,
 195                 new Attributes2Builder().setMpUnreachNlri(mpUnreachNlri).build()).build();
 196         serializer.serializeAttribute(attributes, output);
 197         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 198     }
 199 }