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