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