+/*
+ * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.protocol.bgp.inet.codec;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+import com.google.common.collect.Lists;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
+import org.opendaylight.protocol.bgp.parser.spi.pojo.ServiceLoaderBGPExtensionProviderContext;
+import org.opendaylight.protocol.util.ByteArray;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.DestinationIpv6Builder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.destination.ipv6.Ipv6Prefixes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.destination.ipv6.Ipv6PrefixesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv6CaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.UpdateBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.AsPathBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.ClusterIdBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.MultiExitDiscBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.OriginBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.OriginatorIdBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.UnrecognizedAttributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.as.path.Segments;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.attributes.as.path.SegmentsBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1Builder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpOrigin;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv6AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHopBuilder;
+
+public class BGPParserTest {
+
+ private static int MAX_SIZE = 300;
+
+ private static MessageRegistry messageRegistry;
+
+ private static byte[] input;
+
+ @BeforeClass
+ public static void setUp() throws Exception {
+ messageRegistry = ServiceLoaderBGPExtensionProviderContext.getSingletonInstance().getMessageRegistry();
+
+ final String name = "/up2.bin";
+ try (final InputStream is = BGPParserTest.class.getResourceAsStream(name)) {
+ if (is == null) {
+ throw new IOException("Failed to get resource " + name);
+ }
+ final ByteArrayOutputStream bis = new ByteArrayOutputStream();
+ final byte[] data = new byte[MAX_SIZE];
+ int nRead = 0;
+ while ((nRead = is.read(data, 0, data.length)) != -1) {
+ bis.write(data, 0, nRead);
+ }
+ bis.flush();
+
+ input = bis.toByteArray();
+ is.close();
+ }
+ }
+
+ /*
+ * Tests IPv6 NEXT_HOP, NLRI, ORIGIN.IGP, MULTI_EXIT_DISC, ORIGINATOR-ID, CLUSTER_LIST.
+ *
+ * ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
+ * 00 80 <- length (128) - including header
+ * 02 <- message type
+ * 00 00 <- withdrawn routes length
+ * 00 69 <- total path attribute length (105)
+ * 40 <- attribute flags
+ * 01 <- attribute type code (origin)
+ * 01 <- attribute length
+ * 00 <- Origin value (IGP)
+ * 40 <- attribute flags
+ * 02 <- attribute type code (as path)
+ * 06 <- attribute length
+ * 02 <- AS_SEQUENCE
+ * 01 <- path segment count
+ * 00 00 fd e9 <- path segment value (65001)
+ * 40 <- attribute flags
+ * 03 <- attribute type code (next hop)
+ * 04 <- attribute length
+ * 0a 00 00 00 <- next hop value (10.0.0.0)
+ * 80 <- attribute flags
+ * 04 <- attribute type code (multi exit disc)
+ * 04 <- attribute length
+ * 00 00 00 00 <- value
+ * 80 <- attribute flags
+ * 09 <- attribute type code (originator id)
+ * 04 <- attribute length
+ * 7f 00 00 01 <- value (localhost ip)
+ * 80 <- attribute flags
+ * 0a <- attribute type code (cluster list)
+ * 08 <- attribute length
+ * 01 02 03 04 <- value
+ * 05 06 07 08 <- value
+ * 80 <- attribute flags
+ * 0e <- attribute type code (mp reach nlri)
+ * 40 <- attribute length
+ * 00 02 <- AFI (Ipv6)
+ * 01 <- SAFI (Unicast)
+ * 20 <- length of next hop
+ * 20 01 0d b8 00 00 00 00 00 00 00 00 00 00 00 01 <- global
+ * fe 80 00 00 00 00 00 00 c0 01 0b ff fe 7e 00 <- link local
+ * 00 <- reserved
+ *
+ * //NLRI
+ * 40 20 01 0d b8 00 01 00 02 <- IPv6 Prefix (2001:db8:1:2:: / 64)
+ * 40 20 01 0d b8 00 01 00 01 <- IPv6 Prefix (2001:db8:1:1:: / 64)
+ * 40 20 01 0d b8 00 01 00 00 <- IPv6 Prefix (2001:db8:1:: / 64)
+ *
+ */
+ @Test
+ public void testIPv6Nlri() throws Exception {
+ final Update message = (Update) messageRegistry.parseMessage(Unpooled.wrappedBuffer(input), null);
+
+ // check fields
+ assertNull(message.getWithdrawnRoutes());
+
+ final UpdateBuilder builder = new UpdateBuilder();
+
+ // check NLRI
+
+ final List<Ipv6Prefixes> prefs = new ArrayList<>();
+ prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1:2::/64")).build());
+ prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1:1::/64")).build());
+ prefs.add(new Ipv6PrefixesBuilder().setPrefix(new Ipv6Prefix("2001:db8:1::/64")).build());
+
+ assertNull(message.getNlri());
+
+ // attributes
+ final List<AsNumber> asNumbers = new ArrayList<AsNumber>();
+ asNumbers.add(new AsNumber(65001L));
+ final List<Segments> asPath = Lists.newArrayList();
+ asPath.add(new SegmentsBuilder().setAsSequence(asNumbers).build());
+
+ final Ipv6NextHopCase nextHop = new Ipv6NextHopCaseBuilder().setIpv6NextHop(
+ new Ipv6NextHopBuilder().setGlobal(new Ipv6Address("2001:db8::1")).setLinkLocal(new Ipv6Address("fe80::c001:bff:fe7e:0")).build()).build();
+
+ final List<ClusterIdentifier> clusters = Lists.newArrayList(new ClusterIdentifier(new Ipv4Address("1.2.3.4")),
+ new ClusterIdentifier(new Ipv4Address("5.6.7.8")));
+
+ // check path attributes
+
+ final Attributes attrs = message.getAttributes();
+
+ final AttributesBuilder paBuilder = new AttributesBuilder();
+
+ paBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
+ assertEquals(paBuilder.getOrigin(), attrs.getOrigin());
+
+ paBuilder.setAsPath(new AsPathBuilder().setSegments(asPath).build());
+ assertEquals(paBuilder.getAsPath(), attrs.getAsPath());
+
+ paBuilder.setMultiExitDisc(new MultiExitDiscBuilder().setMed((long) 0).build());
+ assertEquals(paBuilder.getMultiExitDisc(), attrs.getMultiExitDisc());
+
+ paBuilder.setOriginatorId(new OriginatorIdBuilder().setOriginator(new Ipv4Address("127.0.0.1")).build());
+ assertEquals(paBuilder.getOriginatorId(), attrs.getOriginatorId());
+
+ paBuilder.setClusterId(new ClusterIdBuilder().setCluster(clusters).build());
+ assertEquals(paBuilder.getClusterId(), attrs.getClusterId());
+
+ final MpReachNlriBuilder mpBuilder = new MpReachNlriBuilder();
+ mpBuilder.setAfi(Ipv6AddressFamily.class);
+ mpBuilder.setSafi(UnicastSubsequentAddressFamily.class);
+ mpBuilder.setCNextHop(nextHop);
+ mpBuilder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(
+ new DestinationIpv6CaseBuilder().setDestinationIpv6(new DestinationIpv6Builder().setIpv6Prefixes(prefs).build()).build()).build());
+
+ paBuilder.addAugmentation(Attributes1.class, new Attributes1Builder().setMpReachNlri(mpBuilder.build()).build());
+ assertEquals(paBuilder.getAugmentation(Attributes1.class).getMpReachNlri(),
+ attrs.getAugmentation(Attributes1.class).getMpReachNlri());
+ paBuilder.setUnrecognizedAttributes(Collections.<UnrecognizedAttributes> emptyList());
+ // check API message
+
+ builder.setAttributes(paBuilder.build());
+ assertEquals(builder.build(), message);
+
+ final ByteBuf buffer = Unpooled.buffer();
+ messageRegistry.serializeMessage(message, buffer);
+ assertArrayEquals(input, ByteArray.readAllBytes(buffer));
+ }
+
+}