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 static java.util.Collections.singletonList;
  11
  12 import java.util.Arrays;
  13 import java.util.Collections;
  14 import java.util.List;
  15 import java.util.Objects;
  16 import javax.annotation.PostConstruct;
  17 import javax.annotation.PreDestroy;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  21 import org.opendaylight.genius.infra.Datastore.Configuration;
  22 import org.opendaylight.genius.infra.TypedWriteTransaction;
  23 import org.opendaylight.netvirt.bgpmanager.api.IBgpManager;
  24 import org.opendaylight.netvirt.fibmanager.api.IFibManager;
  25 import org.opendaylight.netvirt.fibmanager.api.RouteOrigin;
  26 import org.opendaylight.netvirt.vpnmanager.VpnConstants;
  27 import org.opendaylight.netvirt.vpnmanager.VpnUtil;
  28 import org.opendaylight.netvirt.vpnmanager.populator.input.L3vpnInput;
  29 import org.opendaylight.netvirt.vpnmanager.populator.registry.L3vpnRegistry;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.fibmanager.rev150330.vrfentries.VrfEntry;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.vpn.instance.op.data.VpnInstanceOpDataEntry;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.AdjacencyBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.AdjacencyKey;
  36 import org.opendaylight.yangtools.yang.common.Uint32;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 @Singleton
  41 public class L3vpnOverMplsGrePopulator extends L3vpnPopulator {
  42     private final IdManagerService idManager;
  43     private static final Logger LOG = LoggerFactory.getLogger(L3vpnOverMplsGrePopulator.class);
  44
  45     @Inject
  46     public L3vpnOverMplsGrePopulator(DataBroker dataBroker, IBgpManager bgpManager, IFibManager fibManager,
  47             IdManagerService idManager, VpnUtil vpnUtil) {
  48         super(dataBroker, bgpManager, fibManager, vpnUtil);
  49         this.idManager = idManager;
  50     }
  51
  52     @PostConstruct
  53     public void init() {
  54         LOG.info("{} start", getClass().getSimpleName());
  55         L3vpnRegistry.registerL3vpnPopulator(VrfEntry.EncapType.Mplsgre, this);
  56     }
  57
  58     @PreDestroy
  59     public void close() {
  60         LOG.trace("L3vpnOverMplsGrePopulator Closed");
  61     }
  62
  63     @Override
  64     public void populateFib(L3vpnInput input, TypedWriteTransaction<Configuration> writeConfigTxn) {
  65         if (input.getRouteOrigin() == RouteOrigin.CONNECTED) {
  66             LOG.info("populateFib : Found SubnetRoute for subnet {} rd {}", input.getSubnetIp(), input.getPrimaryRd());
  67             addSubnetRouteFibEntry(input);
  68             return;
  69         }
  70         Adjacency nextHop = input.getNextHop();
  71         Uint32 label = nextHop.getLabel();
  72         String vpnName = input.getVpnName();
  73         String primaryRd = input.getPrimaryRd();
  74         String rd = input.getRd();
  75         String nextHopIp = input.getNextHopIp();
  76         VrfEntry.EncapType encapType = input.getEncapType();
  77         LOG.info("populateFib : Found Interface Adjacency with prefix {} rd {}", nextHop.getIpAddress(), primaryRd);
  78         List<VpnInstanceOpDataEntry> vpnsToImportRoute = vpnUtil.getVpnsImportingMyRoute(vpnName);
  79         Uint32 vpnId = vpnUtil.getVpnId(vpnName);
  80         String nextHopIpAddress = nextHop.getIpAddress(); // it is a valid case for nextHopIpAddress to be null
  81         // Not advertising the prefix to BGP for InternalVpn (where rd is vpnName),
  82         // transparentInternetVpn (where rd is Network name)
  83         // and internalVpnForExtraRoute (where rd is DpnId)
  84         if (VpnUtil.isEligibleForBgp(primaryRd, input.getVpnName(), input.getDpnId(), input.getNetworkName())) {
  85             // the DpnId is set as rd in case of extra routes present in router based VPN
  86             addToLabelMapper(label, input.getDpnId(), nextHopIpAddress,
  87                     singletonList(nextHopIp), vpnId, input.getInterfaceName(), null,false,
  88                     primaryRd);
  89             Objects.requireNonNull(input.getRouteOrigin(), "RouteOrigin is mandatory");
  90             addPrefixToBGP(rd, primaryRd, null /*macAddress*/, nextHopIpAddress, nextHopIp, encapType,
  91                     label, Uint32.ZERO /*l3vni*/, input.getGatewayMac(), input.getRouteOrigin(),
  92                     writeConfigTxn);
  93             //TODO: ERT - check for VPNs importing my route
  94             for (VpnInstanceOpDataEntry vpn : vpnsToImportRoute) {
  95                 String vpnRd = vpn.getVrfId();
  96                 if (vpnRd != null) {
  97                     fibManager.addOrUpdateFibEntry(vpnRd, null /*macAddress*/,
  98                             nextHopIpAddress, Arrays.asList(nextHopIp), encapType, label,
  99                             Uint32.ZERO /*l3vni*/, input.getGatewayMac(), primaryRd, RouteOrigin.SELF_IMPORTED,
 100                             writeConfigTxn);
 101                     LOG.info("populateFib: Exported route with rd {} prefix {} nexthop {} label {}"
 102                             + " to VPN {} for interface {} on dpn {}", vpnRd, nextHop.getIpAddress(), nextHopIp, label,
 103                             vpn, input.getInterfaceName(), input.getDpnId());
 104                 }
 105             }
 106         } else {
 107             // ### add FIB route directly
 108             fibManager.addOrUpdateFibEntry(vpnName, null /*macAddress*/,
 109                     nextHopIpAddress, Arrays.asList(nextHopIp), encapType, label,
 110                     Uint32.ZERO /*l3vni*/, input.getGatewayMac(), null /*parentVpnRd*/,
 111                     input.getRouteOrigin(), writeConfigTxn);
 112             LOG.info("populateFib: Added internal FIB entry for prefix {} nexthop {} label {}"
 113                     + " to VPN {} for interface {} on dpn {}", nextHop.getIpAddress(), nextHopIp, label, vpnName,
 114                     input.getInterfaceName(), input.getDpnId());
 115         }
 116     }
 117
 118     @Override
 119     public Adjacency createOperationalAdjacency(L3vpnInput input) {
 120         Adjacency nextHop = input.getNextHop();
 121         String nextHopIp = input.getNextHopIp();
 122         String prefix = VpnUtil.getIpPrefix(nextHop.getIpAddress());
 123         List<String> adjNextHop = nextHop.getNextHopIpList();
 124         String rd = input.getRd();
 125         String primaryRd = input.getPrimaryRd();
 126         String vpnName = input.getVpnName();
 127         Uint32 label = vpnUtil.getUniqueId(VpnConstants.VPN_IDPOOL_NAME, VpnUtil.getNextHopLabelKey(primaryRd, prefix));
 128         if (label.longValue() == VpnConstants.INVALID_LABEL) {
 129             String error = "Unable to fetch label from Id Manager. Bailing out of creation of operational "
 130                     + "vpn interface adjacency " + prefix + "for vpn " + vpnName;
 131             throw new NullPointerException(error);
 132         }
 133         List<String> nextHopList = adjNextHop != null && !adjNextHop.isEmpty() ? adjNextHop
 134                 : nextHopIp == null ? Collections.emptyList() : singletonList(nextHopIp);
 135
 136         return new AdjacencyBuilder(nextHop).setLabel(label).setNextHopIpList(nextHopList)
 137                 .setIpAddress(prefix).setVrfId(rd).withKey(new AdjacencyKey(prefix))
 138                 .setAdjacencyType(nextHop.getAdjacencyType())
 139                 .setSubnetGatewayMacAddress(nextHop.getSubnetGatewayMacAddress()).build();
 140     }
 141 }