use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.AsPathBuilder in project bgpcep by opendaylight.
the class AsPathLengthTest method testASPathLengthEq.
@Test
public void testASPathLengthEq() {
final AsPathBuilder asPath = new AsPathBuilder();
asPath.setSegments(Collections.singletonList(new SegmentsBuilder().setAsSequence(Arrays.asList(AsNumber.getDefaultInstance("1"), AsNumber.getDefaultInstance("2"), AsNumber.getDefaultInstance("3"))).build()));
Statement statement = this.basicStatements.stream().filter(st -> st.getName().equals("as-path-eq-length-test")).findFirst().get();
RouteAttributeContainer attributeContainer = routeAttributeContainerFalse(new AttributesBuilder().setAsPath(asPath.build()).build());
RouteAttributeContainer result = this.statementRegistry.applyExportStatement(this.baseAttributes, IPV4UNICAST.class, this.exportParameters, attributeContainer, statement);
assertNotNull(result.getAttributes());
asPath.setSegments(Collections.singletonList(new SegmentsBuilder().setAsSequence(Arrays.asList(AsNumber.getDefaultInstance("1"), AsNumber.getDefaultInstance("3"))).build()));
attributeContainer = routeAttributeContainerFalse(new AttributesBuilder().setAsPath(asPath.build()).build());
result = this.statementRegistry.applyExportStatement(this.baseAttributes, IPV4UNICAST.class, this.exportParameters, attributeContainer, statement);
assertNull(result.getAttributes());
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.AsPathBuilder 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)
*/
private static AsPath parseAsPath(final ReferenceCache refCache, final ByteBuf buffer, final RevisedErrorHandling errorHandling) throws BGPDocumentedException, BGPTreatAsWithdrawException {
if (!buffer.isReadable()) {
return EMPTY;
}
final List<Segments> ases = new ArrayList<>();
boolean isSequence = false;
for (int readable = buffer.readableBytes(); readable != 0; readable = buffer.readableBytes()) {
if (readable < 2) {
throw errorHandling.reportError(BGPError.AS_PATH_MALFORMED, "Insufficient AS PATH segment header length %s", readable);
}
final int type = buffer.readUnsignedByte();
final SegmentType segmentType = AsPathSegmentParser.parseType(type);
if (segmentType == null) {
throw errorHandling.reportError(BGPError.AS_PATH_MALFORMED, "Unknown AS PATH segment type %s", type);
}
final int count = buffer.readUnsignedByte();
if (count == 0 && errorHandling != RevisedErrorHandling.NONE) {
throw new BGPTreatAsWithdrawException(BGPError.AS_PATH_MALFORMED, "Empty AS_PATH segment");
}
// We read 2 bytes of header at this point
readable -= 2;
final int segmentLength = count * AsPathSegmentParser.AS_NUMBER_LENGTH;
if (segmentLength > readable) {
throw errorHandling.reportError(BGPError.AS_PATH_MALFORMED, "Calculated segment length %s would overflow available buffer %s", segmentLength, readable);
}
final List<AsNumber> asList = AsPathSegmentParser.parseAsSegment(refCache, count, buffer.readSlice(segmentLength));
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 errorHandling.reportError(BGPError.AS_PATH_MALFORMED, "AS_SEQUENCE must be present in AS_PATH attribute.");
}
return new AsPathBuilder().setSegments(ImmutableList.copyOf(ases)).build();
}
use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.path.attributes.attributes.AsPathBuilder 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.AsPathBuilder 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.AsPathBuilder in project bgpcep by opendaylight.
the class BGPParserTest method testGetUpdateMessage4.
/*
* Tests empty AS_PATH, ORIGIN.EGP, LOCAL_PREF, EXTENDED_COMMUNITIES (Ipv4 Addr specific)
*
* ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
* 00 4A <- length (73) - including header
* 02 <- message type
* 00 00 <- withdrawn routes length
* 00 27 <- total path attribute length (39)
* 40 <- attribute flags
* 01 <- attribute type code (Origin)
* 01 <- attribute length
* 01 <- Origin value (EGP)
* 40 <- attribute flags
* 02 <- attribute type code (As path)
* 00 <- attribute length
* 40 <- attribute flags
* 03 <- attribute type (Next hop)
* 04 <- attribute length
* 03 03 03 03 <- value (3.3.3.3)
* 80 <- attribute flags
* 04 <- attribute type code (Multi exit disc)
* 04 <- attribute length
* 00 00 00 00 <- value
* 40 <- attribute flags
* 05 <- attribute type (Local Pref)
* 04 <- attribute length
* 00 00 00 64 <- value (100)
* c0 <- attribute flags
* 10 <- attribute type (extended community)
* 08 <- attribute length
* 01 04 <- value (type - Ipv4 Address Specific Extended Community)
* c0 a8 01 00 <- value (global adm. 198.162.1.0)
* 12 34 <- value (local adm. 4660)
*
* //NLRI
* 18 0a 1e 03 <- IPv4 Prefix (10.30.3.0 / 24)
* 18 0a 1e 02 <- IPv4 Prefix (10.30.2.0 / 24)
* 18 0a 1e 01 <- IPv4 Prefix (10.30.1.0 / 24)
*/
@Test
public void testGetUpdateMessage4() throws Exception {
final byte[] body = ByteArray.cutBytes(INPUT_BYTES.get(3), MessageUtil.COMMON_HEADER_LENGTH);
final int messageLength = ByteArray.bytesToInt(ByteArray.subByte(INPUT_BYTES.get(3), MessageUtil.MARKER_LENGTH, LENGTH_FIELD_LENGTH));
final Update message = BGPParserTest.updateParser.parseMessageBody(Unpooled.copiedBuffer(body), messageLength, null);
final UpdateBuilder builder = new UpdateBuilder();
// check fields
assertNull(message.getWithdrawnRoutes());
// check nlri
final List<Nlri> nlris = new ArrayList<>();
nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.3.0/24")).build());
nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.2.0/24")).build());
nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.1.0/24")).build());
assertEquals(nlris, message.getNlri());
builder.setNlri(nlris);
// attributes
final Ipv4NextHopCase nextHop = new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(new Ipv4AddressNoZone("3.3.3.3")).build()).build();
final List<ExtendedCommunities> comms = new ArrayList<>();
comms.add(new ExtendedCommunitiesBuilder().setTransitive(true).setExtendedCommunity(new RouteTargetIpv4CaseBuilder().setRouteTargetIpv4(new RouteTargetIpv4Builder().setGlobalAdministrator(new Ipv4AddressNoZone("192.168.1.0")).setLocalAdministrator(Uint16.valueOf(4660)).build()).build()).build());
// check path attributes
final Attributes attrs = message.getAttributes();
final AttributesBuilder paBuilder = new AttributesBuilder();
paBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Egp).build());
assertEquals(paBuilder.getOrigin(), attrs.getOrigin());
paBuilder.setAsPath(new AsPathBuilder().setSegments(List.of()).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.setLocalPref(new LocalPrefBuilder().setPref(Uint32.valueOf(100)).build());
assertEquals(paBuilder.getLocalPref(), attrs.getLocalPref());
paBuilder.setExtendedCommunities(comms);
assertEquals(paBuilder.getExtendedCommunities(), attrs.getExtendedCommunities());
paBuilder.setUnrecognizedAttributes(Map.of());
// check API message
builder.setAttributes(paBuilder.build());
assertEquals(builder.build(), message);
final ByteBuf buffer = Unpooled.buffer();
BGPParserTest.updateParser.serializeMessage(message, buffer);
assertArrayEquals(INPUT_BYTES.get(3), ByteArray.readAllBytes(buffer));
}
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