vpnmanager/impl/src/main/java/org/opendaylight/netvirt/vpnmanager/intervpnlink/InterVpnLinkNodeAddTask.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others. All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.netvirt.vpnmanager.intervpnlink;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11 import static org.opendaylight.mdsal.binding.api.WriteTransaction.CREATE_MISSING_PARENTS;
  12
  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;
  38
  39 /**
  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
  43  * created.
  44  */
  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";
  48
  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;
  57
  58     public InterVpnLinkNodeAddTask(final DataBroker broker, final IMdsalApiManager mdsalMgr,
  59             final VpnFootprintService vpnFootprintService, final BigInteger dpnId,
  60             final InterVpnLinkCache interVpnLinkCache, VpnUtil vpnUtil, InterVpnLinkUtil interVpnLinkUtil) {
  61         this.broker = broker;
  62         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  63         this.mdsalManager = mdsalMgr;
  64         this.vpnFootprintService = vpnFootprintService;
  65         this.dpnId = dpnId;
  66         this.interVpnLinkCache = interVpnLinkCache;
  67         this.interVpnLinkUtil = interVpnLinkUtil;
  68         this.vpnUtil = vpnUtil;
  69     }
  70
  71     @Override
  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);
  76
  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))
  82             .forEach(i -> {
  83                 installLPortDispatcherTable(i.getInterVpnLinkState(), firstDpnList, secondDpnList);
  84                 result.add(updateInterVpnLinkState(i.getInterVpnLinkState(), firstDpnList, secondDpnList));
  85             });
  86
  87         return result;
  88     }
  89
  90     private boolean shouldConfigureLinkIntoDpn(InterVpnLinkState interVpnLinkState, int numberOfDpns) {
  91
  92         if (interVpnLinkState.getFirstEndpointState().getDpId() == null
  93                  || interVpnLinkState.getFirstEndpointState().getDpId().isEmpty()
  94             || interVpnLinkState.getSecondEndpointState().getDpId() == null
  95                     || interVpnLinkState.getSecondEndpointState().getDpId().isEmpty()) {
  96             return true;
  97         } else if (!interVpnLinkState.getFirstEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
  98             && !interVpnLinkState.getSecondEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
  99             && interVpnLinkState.getFirstEndpointState().getDpId().size() < numberOfDpns) {
 100             return true;
 101         } else {
 102             return false;
 103         }
 104     }
 105
 106     private ListenableFuture<Void>
 107         updateInterVpnLinkState(InterVpnLinkState interVpnLinkState, List<Uint64> firstDpnList,
 108                                 List<Uint64> secondDpnList) {
 109
 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)
 117                     .build();
 118         return txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx ->
 119             tx.merge(InterVpnLinkUtil.getInterVpnLinkStateIid(interVpnLinkState.getInterVpnLinkName()),
 120                     newInterVpnLinkState, CREATE_MISSING_PARENTS));
 121     }
 122
 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);
 129             return;
 130         }
 131
 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 {}",
 136                      ivpnLinkName);
 137             return;
 138         }
 139
 140         Optional<Uint32> opt2ndEndpointLportTag = vpnLink.getSecondEndpointLportTag();
 141         if (!opt2ndEndpointLportTag.isPresent()) {
 142             LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 2ndEnpoint in InterVpnLink {}",
 143                      ivpnLinkName);
 144             return;
 145         }
 146
 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);
 165         }
 166     }
 167 }