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.infra.ManagedNewTransactionRunner;
21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
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 ManagedNewTransactionRunner txRunner;
48 private final BigInteger dpnId;
49 private final IMdsalApiManager mdsalManager;
50 private final VpnFootprintService vpnFootprintService;
51 private final InterVpnLinkCache interVpnLinkCache;
52 private final VpnUtil vpnUtil;
53 private final InterVpnLinkUtil interVpnLinkUtil;
55 public InterVpnLinkNodeAddTask(final DataBroker broker, final IMdsalApiManager mdsalMgr,
56 final VpnFootprintService vpnFootprintService, final BigInteger dpnId,
57 final InterVpnLinkCache interVpnLinkCache, VpnUtil vpnUtil, InterVpnLinkUtil interVpnLinkUtil) {
59 this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
60 this.mdsalManager = mdsalMgr;
61 this.vpnFootprintService = vpnFootprintService;
63 this.interVpnLinkCache = interVpnLinkCache;
64 this.interVpnLinkUtil = interVpnLinkUtil;
65 this.vpnUtil = vpnUtil;
69 public List<ListenableFuture<Void>> call() {
70 List<ListenableFuture<Void>> result = new ArrayList<>();
71 // check if there is any inter-vpn-link in with erroneous state
72 int numberOfDpns = Integer.getInteger(NBR_OF_DPNS_PROPERTY_NAME, 1);
74 List<BigInteger> firstDpnList = Collections.singletonList(this.dpnId);
75 List<BigInteger> secondDpnList = firstDpnList;
76 interVpnLinkCache.getAllInterVpnLinks().stream()
77 .filter(i -> i.isComplete() && !i.isActive()
78 && shouldConfigureLinkIntoDpn(i.getInterVpnLinkState(), numberOfDpns))
80 installLPortDispatcherTable(i.getInterVpnLinkState(), firstDpnList, secondDpnList);
81 result.add(updateInterVpnLinkState(i.getInterVpnLinkState(), firstDpnList, secondDpnList));
87 private boolean shouldConfigureLinkIntoDpn(InterVpnLinkState interVpnLinkState, int numberOfDpns) {
89 if (interVpnLinkState.getFirstEndpointState().getDpId() == null
90 || interVpnLinkState.getFirstEndpointState().getDpId().isEmpty()
91 || interVpnLinkState.getSecondEndpointState().getDpId() == null
92 || interVpnLinkState.getSecondEndpointState().getDpId().isEmpty()) {
94 } else if (!interVpnLinkState.getFirstEndpointState().getDpId().contains(dpnId)
95 && !interVpnLinkState.getSecondEndpointState().getDpId().contains(dpnId)
96 && interVpnLinkState.getFirstEndpointState().getDpId().size() < numberOfDpns) {
103 private ListenableFuture<Void>
104 updateInterVpnLinkState(InterVpnLinkState interVpnLinkState, List<BigInteger> firstDpnList,
105 List<BigInteger> secondDpnList) {
107 FirstEndpointState firstEndPointState =
108 new FirstEndpointStateBuilder(interVpnLinkState.getFirstEndpointState()).setDpId(firstDpnList).build();
109 SecondEndpointState secondEndPointState =
110 new SecondEndpointStateBuilder(interVpnLinkState.getSecondEndpointState()).setDpId(secondDpnList).build();
111 InterVpnLinkState newInterVpnLinkState =
112 new InterVpnLinkStateBuilder(interVpnLinkState).setState(InterVpnLinkState.State.Active)
113 .setFirstEndpointState(firstEndPointState).setSecondEndpointState(secondEndPointState)
115 return txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx ->
116 tx.merge(LogicalDatastoreType.CONFIGURATION,
117 InterVpnLinkUtil.getInterVpnLinkStateIid(interVpnLinkState.getInterVpnLinkName()),
118 newInterVpnLinkState, WriteTransaction.CREATE_MISSING_PARENTS));
121 private void installLPortDispatcherTable(InterVpnLinkState interVpnLinkState, List<BigInteger> firstDpnList,
122 List<BigInteger> secondDpnList) {
123 String ivpnLinkName = interVpnLinkState.key().getInterVpnLinkName();
124 Optional<InterVpnLinkDataComposite> optVpnLink = interVpnLinkCache.getInterVpnLinkByName(ivpnLinkName);
125 if (!optVpnLink.isPresent()) {
126 LOG.warn("installLPortDispatcherTable: Could not find interVpnLink {}", ivpnLinkName);
130 InterVpnLinkDataComposite vpnLink = optVpnLink.get();
131 Optional<Long> opt1stEndpointLportTag = vpnLink.getFirstEndpointLportTag();
132 if (!opt1stEndpointLportTag.isPresent()) {
133 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 1stEnpoint in InterVpnLink {}",
138 Optional<Long> opt2ndEndpointLportTag = vpnLink.getSecondEndpointLportTag();
139 if (!opt2ndEndpointLportTag.isPresent()) {
140 LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 2ndEnpoint in InterVpnLink {}",
145 String firstEndpointVpnUuid = vpnLink.getFirstEndpointVpnUuid().get();
146 String secondEndpointVpnUuid = vpnLink.getSecondEndpointVpnUuid().get();
147 // Note that in the DPN of the firstEndpoint we install the lportTag of the secondEndpoint and viceversa
148 String vpn1PrimaryRd = vpnUtil.getPrimaryRd(firstEndpointVpnUuid);
149 String vpn2PrimaryRd = vpnUtil.getPrimaryRd(secondEndpointVpnUuid);
150 if (!vpnUtil.isVpnPendingDelete(vpn1PrimaryRd)
151 && !vpnUtil.isVpnPendingDelete(vpn2PrimaryRd)) {
152 interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, firstDpnList, secondEndpointVpnUuid,
153 opt2ndEndpointLportTag.get());
154 interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, secondDpnList, firstEndpointVpnUuid,
155 opt1stEndpointLportTag.get());
156 // Update the VPN -> DPNs Map.
157 // Note: when a set of DPNs is calculated for Vpn1, these DPNs are added to the VpnToDpn map of Vpn2. Why?
158 // because we do the handover from Vpn1 to Vpn2 in those DPNs, so in those DPNs we must know how to reach
159 // to Vpn2 targets. If new Vpn2 targets are added later, the Fib will be maintained in these DPNs even if
160 // Vpn2 is not physically present there.
161 interVpnLinkUtil.updateVpnFootprint(secondEndpointVpnUuid, vpn1PrimaryRd, firstDpnList);
162 interVpnLinkUtil.updateVpnFootprint(firstEndpointVpnUuid, vpn2PrimaryRd, secondDpnList);