natservice/impl/src/main/java/org/opendaylight/netvirt/natservice/internal/ExternalNetworksChangeListener.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.natservice.internal;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11
  12 import com.google.common.base.Optional;
  13 import java.util.Collection;
  14 import java.util.Collections;
  15 import java.util.List;
  16 import javax.annotation.PostConstruct;
  17 import javax.inject.Inject;
  18 import javax.inject.Singleton;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  22 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  23 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  24 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  25 import org.opendaylight.genius.mdsalutil.NwConstants;
  26 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.config.rev170206.NatserviceConfig.NatMode;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ExternalNetworks;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.IntextIpMap;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.external.networks.Networks;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.RouterPorts;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.Ports;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.ports.InternalToExternalPortMap;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.intext.ip.map.ip.mapping.IpMap;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.napt.switches.RouterToNaptSwitch;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
  41 import org.opendaylight.yangtools.yang.common.Uint32;
  42 import org.opendaylight.yangtools.yang.common.Uint64;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 @Singleton
  47 public class ExternalNetworksChangeListener
  48         extends AsyncDataTreeChangeListenerBase<Networks, ExternalNetworksChangeListener> {
  49     private static final Logger LOG = LoggerFactory.getLogger(ExternalNetworksChangeListener.class);
  50     private final DataBroker dataBroker;
  51     private final ManagedNewTransactionRunner txRunner;
  52     private final FloatingIPListener floatingIpListener;
  53     private final ExternalRoutersListener externalRouterListener;
  54     private final OdlInterfaceRpcService interfaceManager;
  55     private final JobCoordinator coordinator;
  56     private final NatMode natMode;
  57
  58     @Inject
  59     public ExternalNetworksChangeListener(final DataBroker dataBroker, final FloatingIPListener floatingIpListener,
  60                                           final ExternalRoutersListener externalRouterListener,
  61                                           final OdlInterfaceRpcService interfaceManager,
  62                                           final NatserviceConfig config,
  63                                           final JobCoordinator coordinator) {
  64         super(Networks.class, ExternalNetworksChangeListener.class);
  65         this.dataBroker = dataBroker;
  66         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  67         this.floatingIpListener = floatingIpListener;
  68         this.externalRouterListener = externalRouterListener;
  69         this.interfaceManager = interfaceManager;
  70         this.coordinator = coordinator;
  71         if (config != null) {
  72             this.natMode = config.getNatMode();
  73         } else {
  74             this.natMode = NatMode.Controller;
  75         }
  76     }
  77
  78     @Override
  79     @PostConstruct
  80     public void init() {
  81         LOG.info("{} init", getClass().getSimpleName());
  82         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  83     }
  84
  85     @Override
  86     protected InstanceIdentifier<Networks> getWildCardPath() {
  87         return InstanceIdentifier.create(ExternalNetworks.class).child(Networks.class);
  88     }
  89
  90     @Override
  91     protected void add(InstanceIdentifier<Networks> identifier, Networks networks) {
  92
  93     }
  94
  95     @Override
  96     protected ExternalNetworksChangeListener getDataTreeChangeListener() {
  97         return ExternalNetworksChangeListener.this;
  98     }
  99
 100     @Override
 101     protected void remove(InstanceIdentifier<Networks> identifier, Networks networks) {
 102         if (identifier == null || networks == null || networks.getRouterIds() == null
 103                 || networks.getRouterIds().isEmpty()) {
 104             LOG.warn("remove : returning without processing since networks/identifier is null: "
 105                 + "identifier: {}, networks: {}", identifier, networks);
 106             return;
 107         }
 108
 109         for (Uuid routerId: networks.getRouterIds()) {
 110             String routerName = routerId.toString();
 111
 112             InstanceIdentifier<RouterToNaptSwitch> routerToNaptSwitchInstanceIdentifier =
 113                     NatUtil.buildNaptSwitchIdentifier(routerName);
 114
 115             MDSALUtil.syncDelete(dataBroker, LogicalDatastoreType.OPERATIONAL, routerToNaptSwitchInstanceIdentifier);
 116
 117             LOG.debug("remove : successful deletion of data in napt-switches container");
 118         }
 119     }
 120
 121     @Override
 122     protected void update(InstanceIdentifier<Networks> identifier, Networks original, Networks update) {
 123         //Check for VPN disassociation
 124         Uuid originalVpn = original.getVpnid();
 125         Uuid updatedVpn = update.getVpnid();
 126         if (originalVpn == null && updatedVpn != null) {
 127             //external network is dis-associated from L3VPN instance
 128             associateExternalNetworkWithVPN(update);
 129         } else if (originalVpn != null && updatedVpn == null) {
 130             //external network is associated with vpn
 131             disassociateExternalNetworkFromVPN(update, originalVpn.getValue());
 132             //Remove the SNAT entries
 133             removeSnatEntries(original, original.getId());
 134         }
 135     }
 136
 137     private void removeSnatEntries(Networks original, Uuid networkUuid) {
 138         if (original.getRouterIds() != null) {
 139             for (Uuid routerUuid : original.getRouterIds()) {
 140                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerUuid.getValue());
 141                 if (routerId == NatConstants.INVALID_ID) {
 142                     LOG.error("removeSnatEntries : Invalid routerId returned for routerName {}", routerUuid.getValue());
 143                     return;
 144                 }
 145                 Collection<String> externalIps = NatUtil.getExternalIpsForRouter(dataBroker,routerId);
 146                 if (natMode == NatMode.Controller) {
 147                     coordinator.enqueueJob(NatConstants.NAT_DJC_PREFIX + routerUuid.getValue(),
 148                         () -> Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 149                             tx -> externalRouterListener.handleDisableSnatInternetVpn(routerUuid.getValue(), routerId,
 150                                 networkUuid, externalIps, original.getVpnid().getValue(), tx))),
 151                         NatConstants.NAT_DJC_MAX_RETRIES);
 152                 }
 153             }
 154         }
 155     }
 156
 157     private void associateExternalNetworkWithVPN(Networks network) {
 158         if (network.getRouterIds() != null) {
 159             List<Uuid> routerIds = network.getRouterIds();
 160             for (Uuid routerId : routerIds) {
 161                 //long router = NatUtil.getVpnId(dataBroker, routerId.getValue());
 162
 163                 InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerId.getValue());
 164                 Optional<RouterPorts> optRouterPorts = MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 165                     routerPortsId);
 166                 if (!optRouterPorts.isPresent()) {
 167                     LOG.debug("associateExternalNetworkWithVPN : Could not read Router Ports data object with id: {} "
 168                         + "to handle associate ext nw {}", routerId, network.getId());
 169                     continue;
 170                 }
 171                 RouterPorts routerPorts = optRouterPorts.get();
 172                 for (Ports port : routerPorts.nonnullPorts()) {
 173                     String portName = port.getPortName();
 174                     Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 175                     if (dpnId.equals(Uint64.ZERO)) {
 176                         LOG.debug("associateExternalNetworkWithVPN : DPN not found for {}, "
 177                             + "skip handling of ext nw {} association", portName, network.getId());
 178                         continue;
 179                     }
 180                     for (InternalToExternalPortMap ipMap : port.nonnullInternalToExternalPortMap()) {
 181                         // remove all VPN related entries
 182                         coordinator.enqueueJob(NatConstants.NAT_DJC_PREFIX + ipMap.key(),
 183                             () -> Collections.singletonList(
 184                                 txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 185                                     tx -> floatingIpListener.createNATFlowEntries(dpnId, portName, routerId.getValue(),
 186                                         network.getId(), ipMap, tx))), NatConstants.NAT_DJC_MAX_RETRIES);
 187                     }
 188                 }
 189             }
 190
 191             // SNAT
 192             for (Uuid routerId : routerIds) {
 193                 LOG.debug("associateExternalNetworkWithVPN() : for routerId {}", routerId);
 194                 Uuid networkId = network.getId();
 195                 if (networkId == null) {
 196                     LOG.error("associateExternalNetworkWithVPN : networkId is null for the router ID {}", routerId);
 197                     return;
 198                 }
 199                 final String vpnName = network.getVpnid().getValue();
 200                 if (vpnName == null) {
 201                     LOG.error("associateExternalNetworkWithVPN : No VPN associated with ext nw {} for router {}",
 202                         networkId, routerId);
 203                     return;
 204                 }
 205
 206                 Uint64 dpnId = Uint64.valueOf("0");
 207                 InstanceIdentifier<RouterToNaptSwitch> routerToNaptSwitch =
 208                     NatUtil.buildNaptSwitchRouterIdentifier(routerId.getValue());
 209                 Optional<RouterToNaptSwitch> rtrToNapt =
 210                     MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerToNaptSwitch);
 211                 if (rtrToNapt.isPresent()) {
 212                     dpnId = rtrToNapt.get().getPrimarySwitchId();
 213                 }
 214                 LOG.debug("associateExternalNetworkWithVPN : got primarySwitch as dpnId{} ", dpnId);
 215                 if (dpnId == null || dpnId.equals(Uint64.ZERO)) {
 216                     LOG.warn("associateExternalNetworkWithVPN : primary napt Switch not found for router {} on dpn: {}",
 217                         routerId, dpnId);
 218                     return;
 219                 }
 220                 final Uint64 finalDpnId = dpnId;
 221                 coordinator.enqueueJob(NatConstants.NAT_DJC_PREFIX + routerId.getValue(),
 222                     () -> Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 223                         confTx -> {
 224                             Uint32 routerIdentifier = NatUtil.getVpnId(dataBroker, routerId.getValue());
 225                             InstanceIdentifierBuilder<org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice
 226                                 .rev160111.intext.ip.map.IpMapping> idBuilder =
 227                                 InstanceIdentifier.builder(IntextIpMap.class)
 228                                     .child(org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111
 229                                             .intext.ip.map.IpMapping.class,
 230                                         new org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111
 231                                             .intext.ip.map.IpMappingKey(routerIdentifier));
 232                             InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice
 233                                 .rev160111.intext.ip.map.IpMapping> id = idBuilder.build();
 234                             Optional<org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111
 235                                 .intext.ip.map.IpMapping> ipMapping = MDSALUtil.read(dataBroker,
 236                                 LogicalDatastoreType.OPERATIONAL, id);
 237                             if (ipMapping.isPresent()) {
 238                                 for (IpMap ipMap : ipMapping.get().nonnullIpMap()) {
 239                                     String externalIp = ipMap.getExternalIp();
 240                                     LOG.debug(
 241                                         "associateExternalNetworkWithVPN : Calling advToBgpAndInstallFibAndTsFlows "
 242                                             + "for dpnId {},vpnName {} and externalIp {}", finalDpnId, vpnName,
 243                                         externalIp);
 244                                     if (natMode == NatMode.Controller) {
 245                                         externalRouterListener.advToBgpAndInstallFibAndTsFlows(finalDpnId,
 246                                             NwConstants.INBOUND_NAPT_TABLE, vpnName, routerIdentifier,
 247                                             routerId.getValue(), externalIp, network.getId(),
 248                                             null /* external-router */, confTx);
 249                                     }
 250                                 }
 251                             } else {
 252                                 LOG.warn("associateExternalNetworkWithVPN: No ipMapping present fot the routerId {}",
 253                                     routerId);
 254                             }
 255
 256                             Uint32 vpnId = NatUtil.getVpnId(dataBroker, vpnName);
 257                             // Install 47 entry to point to 21
 258                             if (natMode == NatMode.Controller) {
 259                                 externalRouterListener.installNaptPfibEntriesForExternalSubnets(routerId.getValue(),
 260                                     finalDpnId, confTx);
 261                                 if (vpnId.longValue() != -1) {
 262                                     LOG.debug("associateExternalNetworkWithVPN : Calling externalRouterListener "
 263                                         + "installNaptPfibEntry for dpnId {} and vpnId {}", finalDpnId, vpnId);
 264                                     externalRouterListener.installNaptPfibEntry(finalDpnId, vpnId, confTx);
 265                                 }
 266                             }
 267                         })), NatConstants.NAT_DJC_MAX_RETRIES);
 268             }
 269         }
 270     }
 271
 272     private void disassociateExternalNetworkFromVPN(Networks network, String vpnName) {
 273         if (network.getRouterIds() != null) {
 274             for (Uuid routerId : network.getRouterIds()) {
 275                 InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerId.getValue());
 276                 Optional<RouterPorts> optRouterPorts = MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION,
 277                     routerPortsId);
 278                 if (!optRouterPorts.isPresent()) {
 279                     LOG.debug(
 280                         "disassociateExternalNetworkFromVPN : Could not read Router Ports data object with id: {} "
 281                             + "to handle disassociate ext nw {}", routerId, network.getId());
 282                     continue;
 283                 }
 284                 RouterPorts routerPorts = optRouterPorts.get();
 285                 for (Ports port : routerPorts.nonnullPorts()) {
 286                     String portName = port.getPortName();
 287                     Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 288                     if (dpnId.equals(Uint64.ZERO)) {
 289                         LOG.debug("disassociateExternalNetworkFromVPN : DPN not found for {},"
 290                             + "skip handling of ext nw {} disassociation", portName, network.getId());
 291                         continue;
 292                     }
 293                     for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap()) {
 294                         coordinator.enqueueJob(NatConstants.NAT_DJC_PREFIX + intExtPortMap.key(),
 295                             () -> Collections.singletonList(
 296                                 txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 297                                     tx -> floatingIpListener.removeNATFlowEntries(dpnId, portName, vpnName,
 298                                         routerId.getValue(),
 299                                         intExtPortMap, tx))), NatConstants.NAT_DJC_MAX_RETRIES);
 300                     }
 301                 }
 302             }
 303         }
 304     }
 305 }