2 * Copyright (c) 2017 6WIND, Inc. 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.netvirt.neutronvpn;
10 import java.math.BigInteger;
11 import java.util.ArrayList;
12 import java.util.List;
14 import javax.inject.Inject;
15 import javax.inject.Singleton;
17 import org.opendaylight.genius.mdsalutil.ActionInfo;
18 import org.opendaylight.genius.mdsalutil.FlowEntity;
19 import org.opendaylight.genius.mdsalutil.InstructionInfo;
20 import org.opendaylight.genius.mdsalutil.MDSALUtil;
21 import org.opendaylight.genius.mdsalutil.MatchInfo;
22 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
23 import org.opendaylight.genius.mdsalutil.NwConstants;
24 import org.opendaylight.genius.mdsalutil.actions.ActionNxResubmit;
25 import org.opendaylight.genius.mdsalutil.actions.ActionSetFieldMeta;
26 import org.opendaylight.genius.mdsalutil.instructions.InstructionApplyActions;
27 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
28 import org.opendaylight.genius.mdsalutil.matches.MatchEthernetType;
29 import org.opendaylight.genius.mdsalutil.matches.MatchMetadata;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
34 public class IPV6InternetDefaultRouteProgrammer {
36 private static final Logger LOG = LoggerFactory.getLogger(IPV6InternetDefaultRouteProgrammer.class);
37 private final IMdsalApiManager mdsalManager;
40 public IPV6InternetDefaultRouteProgrammer(final IMdsalApiManager mdsalManager) {
41 this.mdsalManager = mdsalManager;
44 private FlowEntity buildIPv6FallbacktoExternalVpn(BigInteger dpId, String routerId, long internetBgpVpnId,
45 long vpnId, boolean add) {
46 List<MatchInfo> matches = new ArrayList<>();
47 matches.add(MatchEthernetType.IPV6);
49 //add match for router vpnId
50 matches.add(new MatchMetadata(MetaDataUtil.getVpnIdMetadata(vpnId), MetaDataUtil.METADATA_MASK_VRFID));
52 ArrayList<ActionInfo> listActionInfo = new ArrayList<>();
53 ArrayList<InstructionInfo> instructionInfo = new ArrayList<>();
55 ActionSetFieldMeta actionSetFieldMeta = new ActionSetFieldMeta(
56 MetaDataUtil.getVpnIdMetadata(internetBgpVpnId));
57 listActionInfo.add(actionSetFieldMeta);
58 listActionInfo.add(new ActionNxResubmit(NwConstants.L3_FIB_TABLE));
59 instructionInfo.add(new InstructionApplyActions(listActionInfo));
61 String defaultIPv6 = "0:0:0:0:0:0:0:0";
62 /* For each router it needs to have unique flow-id. Hence router-id is being used to generate the
63 * flow-id for each DPN instead of internet vpnId.
65 String flowRef = getIPv6FlowRefL3(dpId, NwConstants.L3_FIB_TABLE, defaultIPv6, routerId);
67 FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpId, NwConstants.L3_FIB_TABLE, flowRef,
68 NwConstants.TABLE_MISS_PRIORITY, flowRef/* "L3 ipv6 internet default route",*/, 0, 0,
69 NwConstants.COOKIE_VM_FIB_TABLE, matches, instructionInfo);
75 * This method installs in the FIB table the default route for IPv6.
77 * @param dpnId of the compute node
78 * @param internetBgpVpnId internetVpn id as long
79 * @param vpnId id of router associated to internet bgpvpn as long
81 public void installDefaultRoute(BigInteger dpnId, String routerId, long internetBgpVpnId, long vpnId) {
82 FlowEntity flowEntity = buildIPv6FallbacktoExternalVpn(dpnId, routerId, internetBgpVpnId, vpnId, true);
83 LOG.trace("installDefaultRoute: flowEntity: {} ", flowEntity);
84 mdsalManager.installFlow(flowEntity);
87 public void removeDefaultRoute(BigInteger dpnId, String routerId, long internetBgpVpnId, long vpnId) {
88 FlowEntity flowEntity = buildIPv6FallbacktoExternalVpn(dpnId, routerId, internetBgpVpnId, vpnId, false);
89 LOG.trace("removeDefaultRoute: flowEntity: {} ", flowEntity);
90 mdsalManager.removeFlow(flowEntity);
93 public String getIPv6FlowRefL3(BigInteger dpnId, short tableId, String destPrefix, String routerId) {
94 return "L3." + dpnId.toString() + NwConstants.FLOWID_SEPARATOR + tableId
95 + NwConstants.FLOWID_SEPARATOR + destPrefix + NwConstants.FLOWID_SEPARATOR + routerId;