2 * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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.netvirt.vpnmanager.intervpnlink;
10 import com.google.common.base.Optional;
11 import com.google.common.util.concurrent.CheckedFuture;
12 import com.google.common.util.concurrent.ListenableFuture;
13 import java.math.BigInteger;
14 import java.util.ArrayList;
15 import java.util.Collections;
16 import java.util.List;
17 import java.util.concurrent.Callable;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
21 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
22 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
23 import org.opendaylight.netvirt.vpnmanager.VpnFootprintService;
24 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
25 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkCache;
26 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkDataComposite;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkState;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkStateBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.inter.vpn.link.state.FirstEndpointState;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.inter.vpn.link.state.FirstEndpointStateBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.inter.vpn.link.state.SecondEndpointState;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.inter.vpn.link.state.SecondEndpointStateBuilder;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
37 * A task that, when a Node comes UP, checks if there are any InterVpnLink that
38 * hasn't been instantiated in any DPN yet. This may happen if, for example,
39 * there are no DPNs connected to controller by the time the InterVpnLink is
42 public class InterVpnLinkNodeAddTask implements Callable<List<ListenableFuture<Void>>> {
43 private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkNodeAddTask.class);
44 private static final String NBR_OF_DPNS_PROPERTY_NAME = "vpnservice.intervpnlink.number.dpns";
46 private final DataBroker broker;
47 private final BigInteger dpnId;
48 private final IMdsalApiManager mdsalManager;
49 private final VpnFootprintService vpnFootprintService;
51 public InterVpnLinkNodeAddTask(final DataBroker broker, final IMdsalApiManager mdsalMgr,
52 final VpnFootprintService vpnFootprintService, final BigInteger dpnId) {
54 this.mdsalManager = mdsalMgr;
55 this.vpnFootprintService = vpnFootprintService;
60 public List<ListenableFuture<Void>> call() throws Exception {
61 List<ListenableFuture<Void>> result = new ArrayList<>();
62 // check if there is any inter-vpn-link in with erroneous state
63 int numberOfDpns = Integer.getInteger(NBR_OF_DPNS_PROPERTY_NAME, 1);
65 List<BigInteger> firstDpnList = Collections.singletonList(this.dpnId);
66 List<BigInteger> secondDpnList = firstDpnList;
67 InterVpnLinkCache.getAllInterVpnLinks().stream()
68 .filter(i -> i.isComplete() && !i.isActive()
69 && shouldConfigureLinkIntoDpn(i.getInterVpnLinkState(), numberOfDpns))
71 installLPortDispatcherTable(i.getInterVpnLinkState(), firstDpnList, secondDpnList);
72 result.add(updateInterVpnLinkState(i.getInterVpnLinkState(), firstDpnList, secondDpnList,
79 private boolean shouldConfigureLinkIntoDpn(InterVpnLinkState interVpnLinkState, int numberOfDpns) {
81 if ((interVpnLinkState.getFirstEndpointState().getDpId() == null
82 || interVpnLinkState.getFirstEndpointState().getDpId().isEmpty())
83 || (interVpnLinkState.getSecondEndpointState().getDpId() == null
84 || interVpnLinkState.getSecondEndpointState().getDpId().isEmpty())) {
86 } else if (!interVpnLinkState.getFirstEndpointState().getDpId().contains(dpnId)
87 && !interVpnLinkState.getSecondEndpointState().getDpId().contains(dpnId)
88 && (interVpnLinkState.getFirstEndpointState().getDpId().size() < numberOfDpns)) {
95 private CheckedFuture<Void, TransactionCommitFailedException>
96 updateInterVpnLinkState(InterVpnLinkState interVpnLinkState, List<BigInteger> firstDpnList,
97 List<BigInteger> secondDpnList, int numberOfDpns) {
99 FirstEndpointState firstEndPointState =
100 new FirstEndpointStateBuilder(interVpnLinkState.getFirstEndpointState()).setDpId(firstDpnList).build();
101 SecondEndpointState secondEndPointState =
102 new SecondEndpointStateBuilder(interVpnLinkState.getSecondEndpointState()).setDpId(secondDpnList).build();
103 InterVpnLinkState newInterVpnLinkState =
104 new InterVpnLinkStateBuilder(interVpnLinkState).setState(InterVpnLinkState.State.Active)
105 .setFirstEndpointState(firstEndPointState).setSecondEndpointState(secondEndPointState)
107 WriteTransaction tx = broker.newWriteOnlyTransaction();
108 tx.merge(LogicalDatastoreType.CONFIGURATION,
109 InterVpnLinkUtil.getInterVpnLinkStateIid(interVpnLinkState.getInterVpnLinkName()), newInterVpnLinkState,
114 private void installLPortDispatcherTable(InterVpnLinkState interVpnLinkState, List<BigInteger> firstDpnList,
115 List<BigInteger> secondDpnList) {
116 String ivpnLinkName = interVpnLinkState.getKey().getInterVpnLinkName();
117 Optional<InterVpnLinkDataComposite> optVpnLink = InterVpnLinkCache.getInterVpnLinkByName(ivpnLinkName);
118 if (!optVpnLink.isPresent()) {
119 LOG.warn("installLPortDispatcherTable: Could not find interVpnLink {}", ivpnLinkName);
123 InterVpnLinkDataComposite vpnLink = optVpnLink.get();
124 Optional<Long> opt1stEndpointLportTag = vpnLink.getFirstEndpointLportTag();
125 if (!opt1stEndpointLportTag.isPresent()) {
126 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 1stEnpoint in InterVpnLink {}",
131 Optional<Long> opt2ndEndpointLportTag = vpnLink.getSecondEndpointLportTag();
132 if (!opt2ndEndpointLportTag.isPresent()) {
133 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 2ndEnpoint in InterVpnLink {}",
138 String firstEndpointVpnUuid = vpnLink.getFirstEndpointVpnUuid().get();
139 String secondEndpointVpnUuid = vpnLink.getSecondEndpointVpnUuid().get();
140 // Note that in the DPN of the firstEndpoint we install the lportTag of the secondEndpoint and viceversa
141 String vpn1PrimaryRd = VpnUtil.getPrimaryRd(broker, firstEndpointVpnUuid);
142 String vpn2PrimaryRd = VpnUtil.getPrimaryRd(broker, secondEndpointVpnUuid);
143 if (!VpnUtil.isVpnPendingDelete(broker, vpn1PrimaryRd)
144 && !VpnUtil.isVpnPendingDelete(broker, vpn2PrimaryRd)) {
145 InterVpnLinkUtil.installLPortDispatcherTableFlow(broker, mdsalManager, ivpnLinkName, firstDpnList,
146 secondEndpointVpnUuid, opt2ndEndpointLportTag.get());
147 InterVpnLinkUtil.installLPortDispatcherTableFlow(broker, mdsalManager, ivpnLinkName, secondDpnList,
148 firstEndpointVpnUuid, opt1stEndpointLportTag.get());
149 // Update the VPN -> DPNs Map.
150 // Note: when a set of DPNs is calculated for Vpn1, these DPNs are added to the VpnToDpn map of Vpn2. Why?
151 // because we do the handover from Vpn1 to Vpn2 in those DPNs, so in those DPNs we must know how to reach
152 // to Vpn2 targets. If new Vpn2 targets are added later, the Fib will be maintained in these DPNs even if
153 // Vpn2 is not physically present there.
154 InterVpnLinkUtil.updateVpnFootprint(vpnFootprintService, secondEndpointVpnUuid, vpn1PrimaryRd,
156 InterVpnLinkUtil.updateVpnFootprint(vpnFootprintService, firstEndpointVpnUuid, vpn2PrimaryRd,