2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.bgp.rib.impl;
10 import static java.util.Objects.requireNonNull;
12 import org.opendaylight.protocol.bgp.rib.impl.spi.AbstractImportPolicy;
13 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.ClusterIdentifier;
15 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
16 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
17 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
18 import org.slf4j.Logger;
19 import org.slf4j.LoggerFactory;
22 * Invoked on routes which we get from our normal home AS peers.
24 class FromInternalImportPolicy extends AbstractImportPolicy {
25 private static final Logger LOG = LoggerFactory.getLogger(FromInternalImportPolicy.class);
26 private final ClusterIdentifier clusterIdentifier;
27 private final Ipv4Address bgpIdentifier;
29 FromInternalImportPolicy(final Ipv4Address bgpIdentifier, final ClusterIdentifier clusterIdentifier) {
30 this.bgpIdentifier = requireNonNull(bgpIdentifier);
31 this.clusterIdentifier = requireNonNull(clusterIdentifier);
35 public ContainerNode effectiveAttributes(final ContainerNode attributes) {
36 final AttributeOperations oper = AttributeOperations.getInstance(attributes);
39 * This is an implementation of https://tools.ietf.org/html/rfc4456#section-8
41 * We first check the ORIGINATOR_ID, if present. If it matches our BGP identifier,
42 * we filter the route.
44 final Object originatorId = oper.getOriginatorId(attributes);
45 if (this.bgpIdentifier.getValue().equals(originatorId)) {
46 LOG.debug("Filtering route with our ORIGINATOR_ID {}", this.bgpIdentifier);
51 * Second we check CLUSTER_LIST, if present. If it contains our CLUSTER_ID, we issue
52 * a warning and ignore the route.
54 final LeafSetNode<?> clusterList = oper.getClusterList(attributes);
55 if (clusterList != null) {
56 for (final LeafSetEntryNode<?> node : clusterList.getValue()) {
57 if (this.clusterIdentifier.getValue().equals(node.getValue())) {
58 LOG.info("Received a route with our CLUSTER_ID {} in CLUSTER_LIST {}, filtering it", this.clusterIdentifier.getValue(), clusterList);