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 static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
11 import static org.opendaylight.mdsal.binding.api.WriteTransaction.CREATE_MISSING_PARENTS;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import java.math.BigInteger;
15 import java.util.ArrayList;
16 import java.util.Collections;
17 import java.util.List;
18 import java.util.Optional;
19 import java.util.concurrent.Callable;
20 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
22 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
23 import org.opendaylight.mdsal.binding.api.DataBroker;
24 import org.opendaylight.netvirt.vpnmanager.VpnFootprintService;
25 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
26 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkCache;
27 import org.opendaylight.netvirt.vpnmanager.api.intervpnlink.InterVpnLinkDataComposite;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkState;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.link.states.InterVpnLinkStateBuilder;
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.FirstEndpointState;
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.FirstEndpointStateBuilder;
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.SecondEndpointState;
33 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;
34 import org.opendaylight.yangtools.yang.common.Uint32;
35 import org.opendaylight.yangtools.yang.common.Uint64;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
40 * A task that, when a Node comes UP, checks if there are any InterVpnLink that
41 * hasn't been instantiated in any DPN yet. This may happen if, for example,
42 * there are no DPNs connected to controller by the time the InterVpnLink is
45 public class InterVpnLinkNodeAddTask implements Callable<List<? extends ListenableFuture<?>>> {
46 private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkNodeAddTask.class);
47 private static final String NBR_OF_DPNS_PROPERTY_NAME = "vpnservice.intervpnlink.number.dpns";
49 private final DataBroker broker;
50 private final ManagedNewTransactionRunner txRunner;
51 private final BigInteger dpnId;
52 private final IMdsalApiManager mdsalManager;
53 private final VpnFootprintService vpnFootprintService;
54 private final InterVpnLinkCache interVpnLinkCache;
55 private final VpnUtil vpnUtil;
56 private final InterVpnLinkUtil interVpnLinkUtil;
58 public InterVpnLinkNodeAddTask(final DataBroker broker, final IMdsalApiManager mdsalMgr,
59 final VpnFootprintService vpnFootprintService, final BigInteger dpnId,
60 final InterVpnLinkCache interVpnLinkCache, VpnUtil vpnUtil, InterVpnLinkUtil interVpnLinkUtil) {
62 this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
63 this.mdsalManager = mdsalMgr;
64 this.vpnFootprintService = vpnFootprintService;
66 this.interVpnLinkCache = interVpnLinkCache;
67 this.interVpnLinkUtil = interVpnLinkUtil;
68 this.vpnUtil = vpnUtil;
72 public List<ListenableFuture<Void>> call() {
73 List<ListenableFuture<Void>> result = new ArrayList<>();
74 // check if there is any inter-vpn-link in with erroneous state
75 int numberOfDpns = Integer.getInteger(NBR_OF_DPNS_PROPERTY_NAME, 1);
77 List<Uint64> firstDpnList = Collections.singletonList(Uint64.valueOf(this.dpnId));
78 List<Uint64> secondDpnList = firstDpnList;
79 interVpnLinkCache.getAllInterVpnLinks().stream()
80 .filter(i -> i.isComplete() && !i.isActive()
81 && shouldConfigureLinkIntoDpn(i.getInterVpnLinkState(), numberOfDpns))
83 installLPortDispatcherTable(i.getInterVpnLinkState(), firstDpnList, secondDpnList);
84 result.add(updateInterVpnLinkState(i.getInterVpnLinkState(), firstDpnList, secondDpnList));
90 private boolean shouldConfigureLinkIntoDpn(InterVpnLinkState interVpnLinkState, int numberOfDpns) {
92 if (interVpnLinkState.getFirstEndpointState().getDpId() == null
93 || interVpnLinkState.getFirstEndpointState().getDpId().isEmpty()
94 || interVpnLinkState.getSecondEndpointState().getDpId() == null
95 || interVpnLinkState.getSecondEndpointState().getDpId().isEmpty()) {
97 } else if (!interVpnLinkState.getFirstEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
98 && !interVpnLinkState.getSecondEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
99 && interVpnLinkState.getFirstEndpointState().getDpId().size() < numberOfDpns) {
106 private ListenableFuture<Void>
107 updateInterVpnLinkState(InterVpnLinkState interVpnLinkState, List<Uint64> firstDpnList,
108 List<Uint64> secondDpnList) {
110 FirstEndpointState firstEndPointState =
111 new FirstEndpointStateBuilder(interVpnLinkState.getFirstEndpointState()).setDpId(firstDpnList).build();
112 SecondEndpointState secondEndPointState =
113 new SecondEndpointStateBuilder(interVpnLinkState.getSecondEndpointState()).setDpId(secondDpnList).build();
114 InterVpnLinkState newInterVpnLinkState =
115 new InterVpnLinkStateBuilder(interVpnLinkState).setState(InterVpnLinkState.State.Active)
116 .setFirstEndpointState(firstEndPointState).setSecondEndpointState(secondEndPointState)
118 return txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx ->
119 tx.merge(InterVpnLinkUtil.getInterVpnLinkStateIid(interVpnLinkState.getInterVpnLinkName()),
120 newInterVpnLinkState, CREATE_MISSING_PARENTS));
123 private void installLPortDispatcherTable(InterVpnLinkState interVpnLinkState, List<Uint64> firstDpnList,
124 List<Uint64> secondDpnList) {
125 String ivpnLinkName = interVpnLinkState.key().getInterVpnLinkName();
126 Optional<InterVpnLinkDataComposite> optVpnLink = interVpnLinkCache.getInterVpnLinkByName(ivpnLinkName);
127 if (!optVpnLink.isPresent()) {
128 LOG.warn("installLPortDispatcherTable: Could not find interVpnLink {}", ivpnLinkName);
132 InterVpnLinkDataComposite vpnLink = optVpnLink.get();
133 Optional<Uint32> opt1stEndpointLportTag = vpnLink.getFirstEndpointLportTag();
134 if (!opt1stEndpointLportTag.isPresent()) {
135 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 1stEnpoint in InterVpnLink {}",
140 Optional<Uint32> opt2ndEndpointLportTag = vpnLink.getSecondEndpointLportTag();
141 if (!opt2ndEndpointLportTag.isPresent()) {
142 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 2ndEnpoint in InterVpnLink {}",
147 String firstEndpointVpnUuid = vpnLink.getFirstEndpointVpnUuid().get();
148 String secondEndpointVpnUuid = vpnLink.getSecondEndpointVpnUuid().get();
149 // Note that in the DPN of the firstEndpoint we install the lportTag of the secondEndpoint and viceversa
150 String vpn1PrimaryRd = vpnUtil.getPrimaryRd(firstEndpointVpnUuid);
151 String vpn2PrimaryRd = vpnUtil.getPrimaryRd(secondEndpointVpnUuid);
152 if (!vpnUtil.isVpnPendingDelete(vpn1PrimaryRd)
153 && !vpnUtil.isVpnPendingDelete(vpn2PrimaryRd)) {
154 interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, firstDpnList, secondEndpointVpnUuid,
155 opt2ndEndpointLportTag.get().toJava());
156 interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, secondDpnList, firstEndpointVpnUuid,
157 opt1stEndpointLportTag.get().toJava());
158 // Update the VPN -> DPNs Map.
159 // Note: when a set of DPNs is calculated for Vpn1, these DPNs are added to the VpnToDpn map of Vpn2. Why?
160 // because we do the handover from Vpn1 to Vpn2 in those DPNs, so in those DPNs we must know how to reach
161 // to Vpn2 targets. If new Vpn2 targets are added later, the Fib will be maintained in these DPNs even if
162 // Vpn2 is not physically present there.
163 interVpnLinkUtil.updateVpnFootprint(secondEndpointVpnUuid, vpn1PrimaryRd, firstDpnList);
164 interVpnLinkUtil.updateVpnFootprint(firstEndpointVpnUuid, vpn2PrimaryRd, secondDpnList);