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.Ipv4Util;
  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.rev150305.ipv4.prefixes.DestinationIpv4Builder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4Prefixes;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv4.prefixes.destination.ipv4.Ipv4PrefixesBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.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.rev150305.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.rev130919.PathId;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1Builder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2Builder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlri;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  53
  54 public class Ipv4NlriParserTest {
  55     private final Ipv4NlriParser parser = new Ipv4NlriParser();
  56
  57     private final String ipPrefix1 = "1.2.3.4/32";
  58     private final String ipPrefix2 = "1.2.3.5/32";
  59     private final String additionalIpWD = "1.2.3.6/32";
  60
  61     private final List<Ipv4Prefixes> prefixes = new ArrayList<>();
  62     private final ByteBuf inputBytes = Unpooled.buffer();
  63
  64     private static final byte[] MP_NLRI_BYTES = new byte[] {
  65         0x0, 0x0, 0x0, 0x1, 0x18, 0x1, 0x1, 0x1,
  66         0x0, 0x0, 0x0, 0x2, 0x18, 0x1, 0x1, 0x1};
  67
  68     private static final Ipv4Prefix DESTINATION = new Ipv4Prefix("1.1.1.0/24");
  69
  70     private static final ArrayList<Ipv4Prefixes> PREFIXES = Lists.newArrayList(
  71             createIpv4Prefix(1L, DESTINATION),
  72             createIpv4Prefix(2L, DESTINATION));
  73
  74     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWD;
  75     private org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4Case ip4caseWDWrong;
  76     private DestinationIpv4Case ip4caseAD;
  77     private DestinationIpv4Case ip4caseADWrong;
  78
  79     @Mock
  80     private PeerSpecificParserConstraint constraint;
  81
  82     @Mock
  83     private MultiPathSupport muliPathSupport;
  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.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
  95                 new DestinationIpv4Builder().setIpv4Prefixes(this.prefixes).build()).build();
  96         this.ip4caseAD = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder().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.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
 101                 new DestinationIpv4Builder().setIpv4Prefixes(fakePrefixes).build()).build();
 102         this.ip4caseADWrong = new DestinationIpv4CaseBuilder().setDestinationIpv4(new DestinationIpv4Builder().setIpv4Prefixes(fakePrefixes).build()).build();
 103
 104         this.inputBytes.writeBytes(Ipv4Util.bytesForPrefixBegin(prefix1));
 105         this.inputBytes.writeBytes(Ipv4Util.bytesForPrefixBegin(prefix2));
 106
 107         Mockito.doReturn(Optional.of(this.muliPathSupport)).when(this.constraint).getPeerConstraint(Mockito.any());
 108         Mockito.doReturn(true).when(this.muliPathSupport).isTableTypeSupported(Mockito.any());
 109     }
 110
 111     @Test
 112     public void prefixesTest() {
 113         assertEquals(this.ipPrefix1, this.prefixes.get(0).getPrefix().getValue());
 114         assertEquals(this.ipPrefix2, this.prefixes.get(1).getPrefix().getValue());
 115         assertEquals(2, this.prefixes.size());
 116     }
 117
 118     @Test
 119     public void parseUnreachedNlriTest() {
 120         final MpUnreachNlriBuilder b = new MpUnreachNlriBuilder();
 121         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 122         this.parser.parseNlri(this.inputBytes, b);
 123         assertNotNull("Withdrawn routes, destination type should not be null", b.getWithdrawnRoutes().getDestinationType());
 124
 125         assertEquals(this.ip4caseWD.hashCode(), b.getWithdrawnRoutes().getDestinationType().hashCode());
 126         assertFalse(this.ip4caseWDWrong.hashCode() == b.getWithdrawnRoutes().getDestinationType().hashCode());
 127
 128         assertTrue(this.ip4caseWD.toString().equals(b.getWithdrawnRoutes().getDestinationType().toString()));
 129         assertFalse(this.ip4caseWDWrong.toString().equals(b.getWithdrawnRoutes().getDestinationType().toString()));
 130     }
 131
 132     @Test
 133     public void parseReachedNlriTest() throws BGPParsingException {
 134         final MpReachNlriBuilder b = new MpReachNlriBuilder();
 135         b.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 136         this.parser.parseNlri(this.inputBytes, b);
 137         assertNotNull("Advertized routes, destination type should not be null", b.getAdvertizedRoutes().getDestinationType());
 138
 139         assertEquals(this.ip4caseAD.hashCode(), b.getAdvertizedRoutes().getDestinationType().hashCode());
 140         assertFalse(this.ip4caseADWrong.hashCode() == b.getAdvertizedRoutes().getDestinationType().hashCode());
 141
 142         assertTrue(this.ip4caseAD.toString().equals(b.getAdvertizedRoutes().getDestinationType().toString()));
 143         assertFalse(this.ip4caseADWrong.toString().equals(b.getAdvertizedRoutes().getDestinationType().toString()));
 144     }
 145
 146     @Test
 147     public void parseReachNlriMultiPathTest() {
 148         final MpReachNlri mpReachNlri = new MpReachNlriBuilder().setAdvertizedRoutes(
 149                 new AdvertizedRoutesBuilder().setDestinationType(
 150                         new DestinationIpv4CaseBuilder().setDestinationIpv4(
 151                                 new DestinationIpv4Builder().setIpv4Prefixes(
 152                                         PREFIXES).build()).build()).build()).build();
 153         final MpReachNlriBuilder mpReachNlriBuilder = new MpReachNlriBuilder();
 154         mpReachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 155         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpReachNlriBuilder, this.constraint);
 156         mpReachNlriBuilder.setAfi(null).setSafi(null);
 157         Assert.assertEquals(mpReachNlri, mpReachNlriBuilder.build());
 158
 159         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 160         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 161         final Attributes attributes = new AttributesBuilder().addAugmentation(Attributes1.class,
 162                 new Attributes1Builder().setMpReachNlri(mpReachNlri).build()).build();
 163         serializer.serializeAttribute(attributes, output);
 164         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 165     }
 166
 167     @Test
 168     public void parseUnreachNlriMultiPathTest() {
 169         final MpUnreachNlri mpUnreachNlri = new MpUnreachNlriBuilder().setWithdrawnRoutes(
 170                 new WithdrawnRoutesBuilder().setDestinationType(
 171                         new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv4CaseBuilder().setDestinationIpv4(
 172                                 new DestinationIpv4Builder().setIpv4Prefixes(
 173                                         PREFIXES).build()).build()).build()).build();
 174         final MpUnreachNlriBuilder mpUnreachNlriBuilder = new MpUnreachNlriBuilder();
 175         mpUnreachNlriBuilder.setAfi(Ipv4AddressFamily.class).setSafi(UnicastSubsequentAddressFamily.class);
 176         this.parser.parseNlri(Unpooled.wrappedBuffer(MP_NLRI_BYTES), mpUnreachNlriBuilder, this.constraint);
 177         mpUnreachNlriBuilder.setAfi(null).setSafi(null);
 178         Assert.assertEquals(mpUnreachNlri, mpUnreachNlriBuilder.build());
 179
 180         final Ipv4NlriParser serializer = new Ipv4NlriParser();
 181         final ByteBuf output = Unpooled.buffer(MP_NLRI_BYTES.length);
 182         final Attributes attributes = new AttributesBuilder().addAugmentation(Attributes2.class,
 183                 new Attributes2Builder().setMpUnreachNlri(mpUnreachNlri).build()).build();
 184         serializer.serializeAttribute(attributes, output);
 185         Assert.assertArrayEquals(MP_NLRI_BYTES, output.array());
 186     }
 187
 188     private static Ipv4Prefixes createIpv4Prefix(final long pathId, final Ipv4Prefix prefix) {
 189         return new Ipv4PrefixesBuilder().setPathId(new PathId(pathId)).setPrefix(prefix).build();
 190     }
 191 }