Examples with Attribute org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute used on opensource projects

Example 31 with Attribute

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute 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();
}

Example 32 with Attribute

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute in project bgpcep by opendaylight.

the class LocalPreferenceAttributeParser method parseAttribute.

@Override
public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder, final RevisedErrorHandling errorHandling, final PeerSpecificParserConstraint constraint) throws BGPDocumentedException, BGPTreatAsWithdrawException {
    if (errorHandling == RevisedErrorHandling.EXTERNAL) {
        // RFC7606 section 7.7
        LOG.debug("Discarded LOCAL_PREF attribute from external peer");
        return;
    }
    final int readable = buffer.readableBytes();
    if (readable != 4) {
        throw errorHandling.reportError(BGPError.ATTR_LENGTH_ERROR, "Expected 4 bytes, have %s", readable);
    }
    builder.setLocalPref(new LocalPrefBuilder().setPref(ByteBufUtils.readUint32(buffer)).build());
}

Example 33 with Attribute

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute in project bgpcep by opendaylight.

the class MPUnreachAttributeParser method serializeAttribute.

@Override
public void serializeAttribute(final Attributes attribute, final ByteBuf byteAggregator) {
    final AttributesUnreach pathAttributes2 = attribute.augmentation(AttributesUnreach.class);
    if (pathAttributes2 != null) {
        final ByteBuf unreachBuffer = Unpooled.buffer();
        reg.serializeMpUnReach(pathAttributes2.getMpUnreachNlri(), unreachBuffer);
        for (final NlriSerializer nlriSerializer : this.reg.getSerializers()) {
            nlriSerializer.serializeAttribute(attribute, unreachBuffer);
        }
        AttributeUtil.formatAttribute(AttributeUtil.OPTIONAL, TYPE, unreachBuffer, byteAggregator);
    }
}

Example 34 with Attribute

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute in project bgpcep by opendaylight.

the class NextHopAttributeParser method parseAttribute.

@Override
public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder, final RevisedErrorHandling errorHandling, final PeerSpecificParserConstraint constraint) throws BGPDocumentedException, BGPTreatAsWithdrawException {
    final int readable = buffer.readableBytes();
    final CNextHop nextHop;
    switch(readable) {
        case IP4_LENGTH:
            nextHop = NextHopUtil.parseNextHopIpv4(buffer);
            break;
        case IPV6_LENGTH:
            nextHop = NextHopUtil.parseNextHopIpv6(buffer);
            break;
        case IPV6_LENGTH * 2:
            nextHop = NextHopUtil.parseNextHopFullIpv6(buffer);
            break;
        default:
            throw errorHandling.reportError(BGPError.ATTR_LENGTH_ERROR, "NEXT_HOP attribute is expected to have length of {%s, %s, %s} but has %s", IP4_LENGTH, IPV6_LENGTH, IPV6_LENGTH * 2, readable);
    }
    builder.setCNextHop(nextHop);
}

Example 35 with Attribute

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.ExcludeRouteSubobjects.Attribute in project bgpcep by opendaylight.

the class NextHopAttributeParser method serializeAttribute.

@Override
public void serializeAttribute(final Attributes attribute, final ByteBuf byteAggregator) {
    final CNextHop cNextHop = attribute.getCNextHop();
    if (cNextHop != null) {
        final ByteBuf nextHopBuffer = Unpooled.buffer();
        NextHopUtil.serializeNextHop(cNextHop, nextHopBuffer);
        AttributeUtil.formatAttribute(AttributeUtil.TRANSITIVE, TYPE, nextHopBuffer, byteAggregator);
    }
}