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;
13 import java.util.concurrent.ExecutionException;
14 import javax.inject.Inject;
15 import javax.inject.Singleton;
16 import org.opendaylight.genius.infra.Datastore.Configuration;
17 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
18 import org.opendaylight.genius.infra.TypedWriteTransaction;
19 import org.opendaylight.genius.mdsalutil.ActionInfo;
20 import org.opendaylight.genius.mdsalutil.FlowEntity;
21 import org.opendaylight.genius.mdsalutil.InstructionInfo;
22 import org.opendaylight.genius.mdsalutil.MDSALUtil;
23 import org.opendaylight.genius.mdsalutil.MatchInfo;
24 import org.opendaylight.genius.mdsalutil.MetaDataUtil;
25 import org.opendaylight.genius.mdsalutil.NwConstants;
26 import org.opendaylight.genius.mdsalutil.actions.ActionNxResubmit;
27 import org.opendaylight.genius.mdsalutil.actions.ActionSetFieldMeta;
28 import org.opendaylight.genius.mdsalutil.instructions.InstructionApplyActions;
29 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
30 import org.opendaylight.genius.mdsalutil.matches.MatchEthernetType;
31 import org.opendaylight.genius.mdsalutil.matches.MatchMetadata;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
36 public class IPV6InternetDefaultRouteProgrammer {
38 private static final Logger LOG = LoggerFactory.getLogger(IPV6InternetDefaultRouteProgrammer.class);
39 private final IMdsalApiManager mdsalManager;
42 public IPV6InternetDefaultRouteProgrammer(final IMdsalApiManager mdsalManager) {
43 this.mdsalManager = mdsalManager;
46 private FlowEntity buildIPv6FallbacktoExternalVpn(BigInteger dpId, String routerId, long internetBgpVpnId,
47 long vpnId, boolean add) {
48 List<MatchInfo> matches = new ArrayList<>();
49 matches.add(MatchEthernetType.IPV6);
51 //add match for router vpnId
52 matches.add(new MatchMetadata(MetaDataUtil.getVpnIdMetadata(vpnId), MetaDataUtil.METADATA_MASK_VRFID));
54 ArrayList<ActionInfo> listActionInfo = new ArrayList<>();
55 ArrayList<InstructionInfo> instructionInfo = new ArrayList<>();
57 ActionSetFieldMeta actionSetFieldMeta = new ActionSetFieldMeta(
58 MetaDataUtil.getVpnIdMetadata(internetBgpVpnId));
59 listActionInfo.add(actionSetFieldMeta);
60 listActionInfo.add(new ActionNxResubmit(NwConstants.L3_FIB_TABLE));
61 instructionInfo.add(new InstructionApplyActions(listActionInfo));
63 String defaultIPv6 = "0:0:0:0:0:0:0:0";
64 /* For each router it needs to have unique flow-id. Hence router-id is being used to generate the
65 * flow-id for each DPN instead of internet vpnId.
67 String flowRef = getIPv6FlowRefL3(dpId, NwConstants.L3_FIB_TABLE, defaultIPv6, routerId);
69 FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpId, NwConstants.L3_FIB_TABLE, flowRef,
70 NwConstants.TABLE_MISS_PRIORITY, flowRef/* "L3 ipv6 internet default route",*/, 0, 0,
71 NwConstants.COOKIE_VM_FIB_TABLE, matches, instructionInfo);
77 * This method installs in the FIB table the default route for IPv6.
79 * @param dpnId of the compute node
80 * @param internetBgpVpnId internetVpn id as long
81 * @param vpnId id of router associated to internet bgpvpn as long
83 public void installDefaultRoute(TypedWriteTransaction<Configuration> tx, BigInteger dpnId, String routerId,
84 long internetBgpVpnId, long vpnId) {
85 FlowEntity flowEntity = buildIPv6FallbacktoExternalVpn(dpnId, routerId, internetBgpVpnId, vpnId, true);
86 LOG.trace("installDefaultRoute: flowEntity: {} ", flowEntity);
87 mdsalManager.addFlow(tx, flowEntity);
90 public void removeDefaultRoute(TypedReadWriteTransaction<Configuration> tx, BigInteger dpnId, String routerId,
91 long internetBgpVpnId, long vpnId) throws ExecutionException, InterruptedException {
92 FlowEntity flowEntity = buildIPv6FallbacktoExternalVpn(dpnId, routerId, internetBgpVpnId, vpnId, false);
93 LOG.trace("removeDefaultRoute: flowEntity: {} ", flowEntity);
94 mdsalManager.removeFlow(tx, flowEntity);
97 public String getIPv6FlowRefL3(BigInteger dpnId, short tableId, String destPrefix, String routerId) {
98 return "L3." + dpnId.toString() + NwConstants.FLOWID_SEPARATOR + tableId
99 + NwConstants.FLOWID_SEPARATOR + destPrefix + NwConstants.FLOWID_SEPARATOR + routerId;