vpnservice/vpnmanager/vpnmanager-impl/src/main/java/org/opendaylight/netvirt/vpnmanager/populator/impl/L3vpnOverMplsGrePopulator.java

   1 /*
   2  * Copyright (c) 2017 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.populator.impl;
   9
  10 import java.util.Arrays;
  11 import java.util.Collections;
  12 import java.util.List;
  13 import java.util.Objects;
  14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  15 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  16 import org.opendaylight.netvirt.bgpmanager.api.IBgpManager;
  17 import org.opendaylight.netvirt.fibmanager.api.IFibManager;
  18 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  19 import org.opendaylight.netvirt.vpnmanager.VpnConstants;
  20 import org.opendaylight.netvirt.vpnmanager.VpnInterfaceManager;
  21 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
  22 import org.opendaylight.netvirt.vpnmanager.populator.input.L3vpnInput;
  23 import org.opendaylight.netvirt.vpnmanager.populator.registry.L3vpnRegistry;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.adjacency.list.Adjacency;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.adjacency.list.AdjacencyBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.adjacency.list.AdjacencyKey;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 public class L3vpnOverMplsGrePopulator extends L3vpnPopulator {
  34     private final IdManagerService idManager;
  35     private static final Logger LOG = LoggerFactory.getLogger(L3vpnOverMplsGrePopulator.class);
  36
  37     public L3vpnOverMplsGrePopulator(DataBroker dataBroker, VpnInterfaceManager vpnInterfaceManager,
  38                                      IBgpManager bgpManager, IFibManager fibManager, IdManagerService idManager) {
  39         super(dataBroker, vpnInterfaceManager, bgpManager, fibManager);
  40         this.idManager = idManager;
  41     }
  42
  43     public void init() {
  44         LOG.info("{} start", getClass().getSimpleName());
  45         L3vpnRegistry.registerL3vpnPopulator(VrfEntry.EncapType.Mplsgre, this);
  46     }
  47
  48     public void close() {
  49         LOG.trace("L3vpnOverMplsGrePopulator Closed");
  50     }
  51
  52     @Override
  53     public void populateFib(L3vpnInput input, WriteTransaction writeConfigTxn, WriteTransaction writeOperTxn) {
  54         Adjacency nextHop = input.getNextHop();
  55         long label = nextHop.getLabel();
  56         String vpnName = input.getVpnName();
  57         String primaryRd = input.getPrimaryRd();
  58         String rd = input.getRd();
  59         String nextHopIp = input.getNextHopIp();
  60         VrfEntry.EncapType encapType = input.getEncapType();
  61         List<VpnInstanceOpDataEntry> vpnsToImportRoute = vpnInterfaceManager.getVpnsImportingMyRoute(vpnName);
  62         long vpnId = VpnUtil.getVpnId(broker, vpnName);
  63         String nextHopIpAddress = nextHop.getIpAddress(); // it is a valid case for nextHopIpAddress to be null
  64         if (!rd.equalsIgnoreCase(vpnName)) {
  65             vpnInterfaceManager.addToLabelMapper(label, input.getDpnId(), nextHopIpAddress,
  66                     Arrays.asList(nextHopIp), vpnId, input.getInterfaceName(), null,false, primaryRd, writeOperTxn);
  67
  68             Objects.requireNonNull(input.getRouteOrigin(), "RouteOrigin is mandatory");
  69             addPrefixToBGP(rd, primaryRd, null /*macAddress*/, nextHopIpAddress, nextHopIp, encapType, label,
  70                     0 /*l3vni*/, input.getGatewayMac(), input.getRouteOrigin(), writeConfigTxn);
  71             //TODO: ERT - check for VPNs importing my route
  72             for (VpnInstanceOpDataEntry vpn : vpnsToImportRoute) {
  73                 String vpnRd = vpn.getVrfId();
  74                 if (vpnRd != null) {
  75                     LOG.debug("Exporting route with rd {} prefix {} nexthop {} label {} to VPN {}", vpnRd,
  76                             nextHopIpAddress, nextHopIp, label, vpn);
  77                     fibManager.addOrUpdateFibEntry(broker, vpnRd, null /*macAddress*/,
  78                             nextHopIpAddress, Arrays.asList(nextHopIp), encapType, (int) label,
  79                             0 /*l3vni*/, input.getGatewayMac(), null /*parentVpnRd*/, RouteOrigin.SELF_IMPORTED,
  80                             writeConfigTxn);
  81                 }
  82             }
  83         } else {
  84             // ### add FIB route directly
  85             fibManager.addOrUpdateFibEntry(broker, vpnName, null /*macAddress*/,
  86                     nextHopIpAddress, Arrays.asList(nextHopIp), encapType, (int) label,
  87                     0 /*l3vni*/, input.getGatewayMac(), null /*parentVpnRd*/, input.getRouteOrigin(), writeConfigTxn);
  88         }
  89     }
  90
  91     @Override
  92     public Adjacency createOperationalAdjacency(L3vpnInput input) {
  93         Adjacency nextHop = input.getNextHop();
  94         String nextHopIp = input.getNextHopIp();
  95         String prefix = VpnUtil.getIpPrefix(nextHop.getIpAddress());
  96         List<String> adjNextHop = nextHop.getNextHopIpList();
  97         String rd = input.getRd();
  98         String primaryRd = input.getPrimaryRd();
  99         String vpnName = input.getVpnName();
 100         long label = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME,
 101                 VpnUtil.getNextHopLabelKey(primaryRd, prefix));
 102         if (label == VpnConstants.INVALID_LABEL) {
 103             String error = "Unable to fetch label from Id Manager. Bailing out of creation of operational "
 104                     + "vpn interface adjacency " + prefix + "for vpn " + vpnName;
 105             throw new NullPointerException(error);
 106         }
 107         List<String> nextHopList = (adjNextHop != null && !adjNextHop.isEmpty()) ? adjNextHop
 108                 : (nextHopIp == null ? Collections.emptyList() : Collections.singletonList(nextHopIp));
 109         return new AdjacencyBuilder(nextHop).setLabel(label).setNextHopIpList(nextHopList)
 110                 .setIpAddress(prefix).setVrfId(rd).setKey(new AdjacencyKey(prefix))
 111                 .setPrimaryAdjacency(nextHop.isPrimaryAdjacency()).build();
 112     }
 113
 114 }