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
  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.Optional;
  18 import java.util.concurrent.Callable;
  19 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  21 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  22 import org.opendaylight.mdsal.binding.api.DataBroker;
  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.opendaylight.yangtools.yang.common.Uint32;
  34 import org.opendaylight.yangtools.yang.common.Uint64;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * A task that, when a Node comes UP, checks if there are any InterVpnLink that
  40  * hasn't been instantiated in any DPN yet. This may happen if, for example,
  41  * there are no DPNs connected to controller by the time the InterVpnLink is
  42  * created.
  43  */
  44 public class InterVpnLinkNodeAddTask implements Callable<List<? extends ListenableFuture<?>>> {
  45     private static final Logger LOG = LoggerFactory.getLogger(InterVpnLinkNodeAddTask.class);
  46     private static final String NBR_OF_DPNS_PROPERTY_NAME = "vpnservice.intervpnlink.number.dpns";
  47
  48     private final DataBroker broker;
  49     private final ManagedNewTransactionRunner txRunner;
  50     private final BigInteger dpnId;
  51     private final IMdsalApiManager mdsalManager;
  52     private final VpnFootprintService vpnFootprintService;
  53     private final InterVpnLinkCache interVpnLinkCache;
  54     private final VpnUtil vpnUtil;
  55     private final InterVpnLinkUtil interVpnLinkUtil;
  56
  57     public InterVpnLinkNodeAddTask(final DataBroker broker, final IMdsalApiManager mdsalMgr,
  58             final VpnFootprintService vpnFootprintService, final BigInteger dpnId,
  59             final InterVpnLinkCache interVpnLinkCache, VpnUtil vpnUtil, InterVpnLinkUtil interVpnLinkUtil) {
  60         this.broker = broker;
  61         this.txRunner = new ManagedNewTransactionRunnerImpl(broker);
  62         this.mdsalManager = mdsalMgr;
  63         this.vpnFootprintService = vpnFootprintService;
  64         this.dpnId = dpnId;
  65         this.interVpnLinkCache = interVpnLinkCache;
  66         this.interVpnLinkUtil = interVpnLinkUtil;
  67         this.vpnUtil = vpnUtil;
  68     }
  69
  70     @Override
  71     public List<ListenableFuture<Void>> call() {
  72         List<ListenableFuture<Void>> result = new ArrayList<>();
  73         // check if there is any inter-vpn-link in with erroneous state
  74         int numberOfDpns = Integer.getInteger(NBR_OF_DPNS_PROPERTY_NAME, 1);
  75
  76         List<Uint64> firstDpnList = Collections.singletonList(Uint64.valueOf(this.dpnId));
  77         List<Uint64> secondDpnList = firstDpnList;
  78         interVpnLinkCache.getAllInterVpnLinks().stream()
  79             .filter(i -> i.isComplete() && !i.isActive()
  80                         && shouldConfigureLinkIntoDpn(i.getInterVpnLinkState(), numberOfDpns))
  81             .forEach(i -> {
  82                 installLPortDispatcherTable(i.getInterVpnLinkState(), firstDpnList, secondDpnList);
  83                 result.add(updateInterVpnLinkState(i.getInterVpnLinkState(), firstDpnList, secondDpnList));
  84             });
  85
  86         return result;
  87     }
  88
  89     private boolean shouldConfigureLinkIntoDpn(InterVpnLinkState interVpnLinkState, int numberOfDpns) {
  90
  91         if (interVpnLinkState.getFirstEndpointState().getDpId() == null
  92                  || interVpnLinkState.getFirstEndpointState().getDpId().isEmpty()
  93             || interVpnLinkState.getSecondEndpointState().getDpId() == null
  94                     || interVpnLinkState.getSecondEndpointState().getDpId().isEmpty()) {
  95             return true;
  96         } else if (!interVpnLinkState.getFirstEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
  97             && !interVpnLinkState.getSecondEndpointState().getDpId().contains(Uint64.valueOf(dpnId))
  98             && interVpnLinkState.getFirstEndpointState().getDpId().size() < numberOfDpns) {
  99             return true;
 100         } else {
 101             return false;
 102         }
 103     }
 104
 105     private ListenableFuture<Void>
 106         updateInterVpnLinkState(InterVpnLinkState interVpnLinkState, List<Uint64> firstDpnList,
 107                                 List<Uint64> secondDpnList) {
 108
 109         FirstEndpointState firstEndPointState =
 110             new FirstEndpointStateBuilder(interVpnLinkState.getFirstEndpointState()).setDpId(firstDpnList).build();
 111         SecondEndpointState secondEndPointState =
 112             new SecondEndpointStateBuilder(interVpnLinkState.getSecondEndpointState()).setDpId(secondDpnList).build();
 113         InterVpnLinkState newInterVpnLinkState =
 114             new InterVpnLinkStateBuilder(interVpnLinkState).setState(InterVpnLinkState.State.Active)
 115                     .setFirstEndpointState(firstEndPointState).setSecondEndpointState(secondEndPointState)
 116                     .build();
 117         return txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION, tx ->
 118             tx.mergeParentStructureMerge(InterVpnLinkUtil
 119                             .getInterVpnLinkStateIid(interVpnLinkState.getInterVpnLinkName()), newInterVpnLinkState));
 120     }
 121
 122     private void installLPortDispatcherTable(InterVpnLinkState interVpnLinkState, List<Uint64> firstDpnList,
 123                                              List<Uint64> secondDpnList) {
 124         String ivpnLinkName = interVpnLinkState.key().getInterVpnLinkName();
 125         Optional<InterVpnLinkDataComposite> optVpnLink = interVpnLinkCache.getInterVpnLinkByName(ivpnLinkName);
 126         if (!optVpnLink.isPresent()) {
 127             LOG.warn("installLPortDispatcherTable: Could not find interVpnLink {}", ivpnLinkName);
 128             return;
 129         }
 130
 131         InterVpnLinkDataComposite vpnLink = optVpnLink.get();
 132         Optional<Uint32> opt1stEndpointLportTag = vpnLink.getFirstEndpointLportTag();
 133         if (!opt1stEndpointLportTag.isPresent()) {
 134             LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 1stEnpoint in InterVpnLink {}",
 135                      ivpnLinkName);
 136             return;
 137         }
 138
 139         Optional<Uint32> opt2ndEndpointLportTag = vpnLink.getSecondEndpointLportTag();
 140         if (!opt2ndEndpointLportTag.isPresent()) {
 141             LOG.warn("installLPortDispatcherTable: Could not find LPortTag for 2ndEnpoint in InterVpnLink {}",
 142                      ivpnLinkName);
 143             return;
 144         }
 145
 146         String firstEndpointVpnUuid = vpnLink.getFirstEndpointVpnUuid().get();
 147         String secondEndpointVpnUuid = vpnLink.getSecondEndpointVpnUuid().get();
 148         // Note that in the DPN of the firstEndpoint we install the lportTag of the secondEndpoint and viceversa
 149         String vpn1PrimaryRd = vpnUtil.getPrimaryRd(firstEndpointVpnUuid);
 150         String vpn2PrimaryRd = vpnUtil.getPrimaryRd(secondEndpointVpnUuid);
 151         if (!vpnUtil.isVpnPendingDelete(vpn1PrimaryRd)
 152                 && !vpnUtil.isVpnPendingDelete(vpn2PrimaryRd)) {
 153             interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, firstDpnList, secondEndpointVpnUuid,
 154                     opt2ndEndpointLportTag.get().toJava());
 155             interVpnLinkUtil.installLPortDispatcherTableFlow(ivpnLinkName, secondDpnList, firstEndpointVpnUuid,
 156                     opt1stEndpointLportTag.get().toJava());
 157             // Update the VPN -> DPNs Map.
 158             // Note: when a set of DPNs is calculated for Vpn1, these DPNs are added to the VpnToDpn map of Vpn2. Why?
 159             // because we do the handover from Vpn1 to Vpn2 in those DPNs, so in those DPNs we must know how to reach
 160             // to Vpn2 targets. If new Vpn2 targets are added later, the Fib will be maintained in these DPNs even if
 161             // Vpn2 is not physically present there.
 162             interVpnLinkUtil.updateVpnFootprint(secondEndpointVpnUuid, vpn1PrimaryRd, firstDpnList);
 163             interVpnLinkUtil.updateVpnFootprint(firstEndpointVpnUuid, vpn2PrimaryRd, secondDpnList);
 164         }
 165     }
 166 }