use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.as.path.SegmentsBuilder in project bgpcep by opendaylight.
the class BGPMessageParserMockTest method fillMessages.
/**
* Helper method to fill messages variable.
*
* @param asn this parameter is passed to ASNumber constructor
*/
private static Update fillMessages(final long asn) {
final UpdateBuilder builder = new UpdateBuilder();
final List<Segments> asPath = new ArrayList<>();
asPath.add(new SegmentsBuilder().setAsSequence(Lists.newArrayList(new AsNumber(Uint32.valueOf(asn)))).build());
final CNextHop nextHop = new Ipv6NextHopCaseBuilder().setIpv6NextHop(new Ipv6NextHopBuilder().setGlobal(new Ipv6AddressNoZone("2001:db8::1")).setLinkLocal(new Ipv6AddressNoZone("fe80::c001:bff:fe7e:0")).build()).build();
final Ipv6Prefix pref1 = new Ipv6Prefix("2001:db8:1:2::/64");
final Ipv6Prefix pref2 = new Ipv6Prefix("2001:db8:1:1::/64");
final Ipv6Prefix pref3 = new Ipv6Prefix("2001:db8:1::/64");
final AttributesBuilder paBuilder = new AttributesBuilder();
paBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build());
paBuilder.setAsPath(new AsPathBuilder().setSegments(asPath).build());
final MpReachNlriBuilder mpReachBuilder = new MpReachNlriBuilder();
mpReachBuilder.setAfi(Ipv6AddressFamily.class);
mpReachBuilder.setSafi(UnicastSubsequentAddressFamily.class);
mpReachBuilder.setCNextHop(nextHop);
mpReachBuilder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(new DestinationIpv6CaseBuilder().setDestinationIpv6(new DestinationIpv6Builder().setIpv6Prefixes(Lists.newArrayList(new Ipv6PrefixesBuilder().setPrefix(pref1).build(), new Ipv6PrefixesBuilder().setPrefix(pref2).build(), new Ipv6PrefixesBuilder().setPrefix(pref3).build())).build()).build()).build());
paBuilder.addAugmentation(new AttributesReachBuilder().setMpReachNlri(mpReachBuilder.build()).build());
builder.setAttributes(paBuilder.build());
return builder.build();
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.as.path.SegmentsBuilder in project bgpcep by opendaylight.
the class BGPParserTest method testGetUpdateMessage1.
/*
* Tests IPv4 NEXT_HOP, ATOMIC_AGGREGATE, COMMUNITY, NLRI
*
* ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
* 00 54 <- length (84) - including header
* 02 <- message type
* 00 00 <- withdrawn routes length
* 00 31 <- total path attribute length (49)
* 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 ea <- path segment value (65002)
* 40 <- attribute flags
* 03 <- attribute type code (Next Hop)
* 04 <- attribute length
* 10 00 00 02 <- value (10.0.0.2)
* 80 <- attribute flags
* 04 <- attribute type code (multi exit disc)
* 04 <- attribute length
* 00 00 00 00 <- value
* 60 <- attribute flags
* 06 <- attribute type code (atomic aggregate)
* 00 <- attribute length
* 40 <- attribute flags
* 08 <- attribute type code (community)
* 10 <- attribute length FF FF FF
* 01 <- value (NO_EXPORT)
* FF FF FF 02 <- value (NO_ADVERTISE)
* FF FF FF 03 <- value (NO_EXPORT_SUBCONFED)
* FF FF FF 10 <- unknown Community
*
* //NLRI
* 18 ac 11 02 <- IPv4 Prefix (172.17.2.0 / 24)
* 18 ac 11 01 <- IPv4 Prefix (172.17.1.0 / 24)
* 18 ac 11 00 <- IPv4 Prefix (172.17.0.0 / 24)
*/
@Test
public void testGetUpdateMessage1() throws Exception {
final byte[] body = ByteArray.cutBytes(INPUT_BYTES.get(0), MessageUtil.COMMON_HEADER_LENGTH);
final int messageLength = ByteArray.bytesToInt(ByteArray.subByte(INPUT_BYTES.get(0), MessageUtil.MARKER_LENGTH, LENGTH_FIELD_LENGTH));
final Update message = BGPParserTest.updateParser.parseMessageBody(Unpooled.copiedBuffer(body), messageLength, null);
// check fields
assertNull(message.getWithdrawnRoutes());
// attributes
final Ipv4NextHopCase nextHop = new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(new Ipv4AddressNoZone("10.0.0.2")).build()).build();
final List<Communities> comms = new ArrayList<>();
comms.add((Communities) CommunityUtil.NO_EXPORT);
comms.add((Communities) CommunityUtil.NO_ADVERTISE);
comms.add((Communities) CommunityUtil.NO_EXPORT_SUBCONFED);
comms.add((Communities) CommunityUtil.create(NoopReferenceCache.getInstance(), 0xFFFF, 0xFF10));
final UpdateBuilder builder = new UpdateBuilder();
// check nlri
final List<Nlri> nlris = List.of(new NlriBuilder().setPrefix(new Ipv4Prefix("172.17.2.0/24")).build(), new NlriBuilder().setPrefix(new Ipv4Prefix("172.17.1.0/24")).build(), new NlriBuilder().setPrefix(new Ipv4Prefix("172.17.0.0/24")).build());
assertEquals(nlris, message.getNlri());
builder.setNlri(nlris);
// 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(List.of(new SegmentsBuilder().setAsSequence(List.of(new AsNumber(Uint32.valueOf(65002)))).build())).build());
assertEquals(paBuilder.getAsPath(), attrs.getAsPath());
paBuilder.setCNextHop(nextHop);
assertEquals(paBuilder.getCNextHop(), attrs.getCNextHop());
paBuilder.setMultiExitDisc(new MultiExitDiscBuilder().setMed(Uint32.ZERO).build());
assertEquals(paBuilder.getMultiExitDisc(), attrs.getMultiExitDisc());
paBuilder.setAtomicAggregate(new AtomicAggregateBuilder().build());
assertEquals(paBuilder.getAtomicAggregate(), attrs.getAtomicAggregate());
paBuilder.setCommunities(comms);
assertEquals(paBuilder.getCommunities(), attrs.getCommunities());
paBuilder.setUnrecognizedAttributes(Map.of());
builder.setAttributes(paBuilder.build());
assertEquals(builder.build(), message);
final ByteBuf buffer = Unpooled.buffer();
BGPParserTest.updateParser.serializeMessage(message, buffer);
assertArrayEquals(INPUT_BYTES.get(0), ByteArray.readAllBytes(buffer));
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.as.path.SegmentsBuilder in project bgpcep by opendaylight.
the class BestPathStateImpl method extractSegments.
private List<Segments> extractSegments(final UnkeyedListNode segments, final NamespaceSpecificIds ids) {
// list segments
final List<Segments> extracted = new ArrayList<>();
for (final UnkeyedListEntryNode segment : segments.body()) {
final SegmentsBuilder sb = new SegmentsBuilder();
// We are expecting that segment contains either as-sequence or as-set,
// so just one of them will be set, other would be null
sb.setAsSequence(extractAsList(segment, ids.asSeqNid)).setAsSet(extractAsList(segment, ids.asSetNid));
extracted.add(sb.build());
}
return extracted;
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.as.path.SegmentsBuilder in project bgpcep by opendaylight.
the class TestUtil method createAttributes.
private static Attributes createAttributes() {
final List<AsNumber> asSequences = Lists.newArrayList(new AsNumber(Uint32.valueOf(72)), new AsNumber(Uint32.valueOf(82)), new AsNumber(Uint32.valueOf(92)));
final List<Segments> segments = new ArrayList<>();
final SegmentsBuilder segmentsBuild = new SegmentsBuilder();
segmentsBuild.setAsSequence(asSequences).build();
return new AttributesBuilder().setAggregator(new AggregatorBuilder().setAsNumber(new AsNumber(Uint32.valueOf(72))).setNetworkAddress(IPV4_ADDRESS_20).build()).setAigp(new AigpBuilder().setAigpTlv(new AigpTlvBuilder().setMetric(new AccumulatedIgpMetric(Uint64.ONE)).build()).build()).setAsPath(new AsPathBuilder().setSegments(segments).build()).setAtomicAggregate(new AtomicAggregateBuilder().build()).setClusterId(new ClusterIdBuilder().setCluster(Lists.newArrayList(new ClusterIdentifier(IPV4_ADDRESS_30), new ClusterIdentifier(IPV4_ADDRESS_40))).build()).setCNextHop(new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(IPV4_ADDRESS_100).build()).build()).setCommunities(createCommunities()).setLocalPref(new LocalPrefBuilder().setPref(Uint32.valueOf(2)).build()).setMultiExitDisc(new MultiExitDiscBuilder().setMed(Uint32.valueOf(123)).build()).setOrigin(new OriginBuilder().setValue(BgpOrigin.Igp).build()).setOriginatorId(new OriginatorIdBuilder().setOriginator(IPV4_ADDRESS_12).build()).build();
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.as.path.SegmentsBuilder in project bgpcep by opendaylight.
the class AsPathAttributeParser method parseAsPath.
/**
* Parses AS_PATH from bytes.
*
* @param refCache ReferenceCache shared reference of object
* @param buffer bytes to be parsed
* @return new ASPath object
* @throws BGPDocumentedException if there is no AS_SEQUENCE present (mandatory)
* @throws BGPParsingException
*/
private static AsPath parseAsPath(final ReferenceCache refCache, final ByteBuf buffer) throws BGPDocumentedException, BGPParsingException {
if (!buffer.isReadable()) {
return EMPTY;
}
final ArrayList<Segments> ases = new ArrayList<>();
boolean isSequence = false;
while (buffer.isReadable()) {
final int type = buffer.readUnsignedByte();
final SegmentType segmentType = AsPathSegmentParser.parseType(type);
if (segmentType == null) {
throw new BGPParsingException("AS Path segment type unknown : " + type);
}
final int count = buffer.readUnsignedByte();
final List<AsNumber> asList = AsPathSegmentParser.parseAsSegment(refCache, count, buffer.readSlice(count * AsPathSegmentParser.AS_NUMBER_LENGTH));
if (segmentType == SegmentType.AS_SEQUENCE) {
ases.add(new SegmentsBuilder().setAsSequence(asList).build());
isSequence = true;
} else {
ases.add(new SegmentsBuilder().setAsSet(asList).build());
}
}
if (!isSequence) {
throw new BGPDocumentedException("AS_SEQUENCE must be present in AS_PATH attribute.", BGPError.AS_PATH_MALFORMED);
}
ases.trimToSize();
return new AsPathBuilder().setSegments(ases).build();
}
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