natservice/impl/src/main/java/org/opendaylight/netvirt/natservice/internal/NatVpnMapsChangeListener.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 java.util.List;
  13 import java.util.Objects;
  14 import java.util.Optional;
  15 import java.util.concurrent.ExecutionException;
  16 import java.util.stream.Collectors;
  17 import javax.annotation.PreDestroy;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  22 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  23 import org.opendaylight.infrautils.utils.concurrent.Executors;
  24 import org.opendaylight.mdsal.binding.api.DataBroker;
  25 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  26 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  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.rev160111.ProviderTypes;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.RouterPorts;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.Ports;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.ports.InternalToExternalPortMap;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.VpnMaps;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.VpnMap;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.vpnmap.RouterIds;
  36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  37 import org.opendaylight.yangtools.yang.common.Uint32;
  38 import org.opendaylight.yangtools.yang.common.Uint64;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 @Singleton
  43 public class NatVpnMapsChangeListener extends AbstractAsyncDataTreeChangeListener<VpnMap> {
  44     private static final Logger LOG = LoggerFactory.getLogger(NatVpnMapsChangeListener.class);
  45     private final DataBroker dataBroker;
  46     private final ManagedNewTransactionRunner txRunner;
  47     private final FloatingIPListener floatingIpListener;
  48     private final OdlInterfaceRpcService interfaceManager;
  49     private final ExternalRoutersListener externalRoutersListener;
  50
  51     @Inject
  52     public NatVpnMapsChangeListener(final DataBroker dataBroker,
  53                                final FloatingIPListener floatingIpListener,
  54                                final OdlInterfaceRpcService interfaceManager,
  55                                final ExternalRoutersListener externalRoutersListener) {
  56         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(VpnMaps.class)
  57                 .child(VpnMap.class),
  58                 Executors.newListeningSingleThreadExecutor("NatVpnMapsChangeListener", LOG));
  59         this.dataBroker = dataBroker;
  60         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  61         this.floatingIpListener = floatingIpListener;
  62         this.interfaceManager = interfaceManager;
  63         this.externalRoutersListener = externalRoutersListener;
  64     }
  65
  66     public void init() {
  67         LOG.info("{} init", getClass().getSimpleName());
  68     }
  69
  70     @Override
  71     @PreDestroy
  72     public void close() {
  73         super.close();
  74         Executors.shutdownAndAwaitTermination(getExecutorService());
  75     }
  76
  77     @Override
  78     public void add(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  79         Uuid vpnUuid = vpnMap.getVpnId();
  80         String vpnName = vpnUuid.getValue();
  81         if (vpnMap.getRouterIds() != null) {
  82             vpnMap.getRouterIds().stream()
  83                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
  84                 .forEach(router -> {
  85                     String routerName = router.getRouterId().getValue();
  86                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
  87                     onRouterAssociatedToVpn(vpnName, routerName);
  88                 });
  89         }
  90     }
  91
  92     @Override
  93     public void remove(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  94         Uuid vpnUuid = vpnMap.getVpnId();
  95         String vpnName = vpnUuid.getValue();
  96         if (vpnMap.getRouterIds() != null) {
  97             vpnMap.getRouterIds().stream()
  98                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
  99                 .forEach(router -> {
 100                     String routerName = router.getRouterId().getValue();
 101                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
 102                     onRouterDisassociatedFromVpn(vpnName, routerName);
 103                 });
 104         }
 105     }
 106
 107     @Override
 108     public void update(InstanceIdentifier<VpnMap> identifier, VpnMap original, VpnMap updated) {
 109         Uuid vpnUuid = updated.getVpnId();
 110         String vpnName = vpnUuid.getValue();
 111
 112         List<RouterIds> updatedRouterIdList = updated.getRouterIds();
 113         List<RouterIds> originalRouterIdList = original.getRouterIds();
 114         List<RouterIds> routersAddedList = null;
 115         List<RouterIds> routersRemovedList = null;
 116
 117         if (originalRouterIdList == null && updatedRouterIdList != null) {
 118             routersAddedList = updatedRouterIdList;
 119         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 120             routersAddedList = updatedRouterIdList.stream()
 121                 .filter(routerId -> (!originalRouterIdList.contains(routerId)))
 122                 .collect(Collectors.toList());
 123         }
 124
 125         if (originalRouterIdList != null && updatedRouterIdList == null) {
 126             routersRemovedList = originalRouterIdList;
 127         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 128             routersRemovedList = originalRouterIdList.stream()
 129                 .filter(routerId -> (!updatedRouterIdList.contains(routerId)))
 130                 .collect(Collectors.toList());
 131         }
 132
 133         if (routersAddedList != null) {
 134             routersAddedList.stream()
 135                 .filter(router -> !(Objects.equals(router.getRouterId(), updated.getVpnId())))
 136                 .forEach(router -> {
 137                     String routerName = router.getRouterId().getValue();
 138                     onRouterAssociatedToVpn(vpnName, routerName);
 139                 });
 140         }
 141
 142         if (routersRemovedList != null) {
 143             routersRemovedList.stream()
 144                 .filter(router -> !(Objects.equals(router.getRouterId(), original.getVpnId())))
 145                 .forEach(router -> {
 146                     String routerName = router.getRouterId().getValue();
 147                     onRouterDisassociatedFromVpn(vpnName, routerName);
 148                 });
 149         }
 150     }
 151
 152     public void onRouterAssociatedToVpn(String vpnName, String routerName) {
 153
 154         //check router is associated to external network
 155         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 156         if (extNetwork != null) {
 157             try {
 158                 LOG.debug("onRouterAssociatedToVpn : Router {} is associated with ext nw {}", routerName, extNetwork);
 159                 handleDNATConfigurationForRouterAssociation(routerName, vpnName, extNetwork);
 160                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 161                 if (extNetworkUuid == null) {
 162                     LOG.error("onRouterAssociatedToVpn : Unable to retrieve external network Uuid for router {}",
 163                             routerName);
 164                     return;
 165                 }
 166                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 167                         extNetworkUuid);
 168                 if (extNwProvType == null) {
 169                     LOG.error("onRouterAssociatedToVpn : External Network Provider Type missing");
 170                     return;
 171                 }
 172                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 173                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 174                     tx -> externalRoutersListener.changeLocalVpnIdToBgpVpnId(routerName, routerId, extNetwork,
 175                         vpnName, tx, extNwProvType)).get();
 176             } catch (InterruptedException | ExecutionException e) {
 177                 LOG.error("Error changling local VPN identifier to BGP VPN identifier", e);
 178             }
 179         } else {
 180             LOG.debug("onRouterAssociatedToVpn : Ignoring the Router {} association with VPN {} "
 181                     + "since it is not external router", routerName, vpnName);
 182         }
 183     }
 184
 185     /**
 186      * router disassociation from vpn.
 187      */
 188
 189     public void onRouterDisassociatedFromVpn(String vpnName, String routerName) {
 190
 191         //check router is associated to external network
 192         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 193         if (extNetwork != null) {
 194             try {
 195                 LOG.debug("onRouterDisassociatedFromVpn : Router {} is associated with ext nw {}", routerName,
 196                         extNetwork);
 197                 handleDNATConfigurationForRouterDisassociation(routerName, vpnName, extNetwork);
 198                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 199                 if (extNetworkUuid == null) {
 200                     LOG.error("onRouterDisassociatedFromVpn : Unable to retrieve external network Uuid for router {}",
 201                             routerName);
 202                     return;
 203                 }
 204                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 205                         extNetworkUuid);
 206                 if (extNwProvType == null) {
 207                     LOG.error("onRouterDisassociatedFromVpn : External Network Provider Type missing");
 208                     return;
 209                 }
 210                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 211                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 212                     tx -> externalRoutersListener.changeBgpVpnIdToLocalVpnId(routerName, routerId, extNetwork,
 213                         vpnName, tx, extNwProvType)).get();
 214             } catch (InterruptedException | ExecutionException e) {
 215                 LOG.error("Error changing BGP VPN identifier to local VPN identifier", e);
 216             }
 217         } else {
 218             LOG.debug("onRouterDisassociatedFromVpn : Ignoring the Router {} association with VPN {} "
 219                     + "since it is not external router", routerName, vpnName);
 220         }
 221     }
 222
 223     void handleDNATConfigurationForRouterAssociation(String routerName, String vpnName, String externalNetwork)
 224             throws ExecutionException, InterruptedException {
 225         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 226         Optional<RouterPorts> optRouterPorts =
 227                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 228         if (!optRouterPorts.isPresent()) {
 229             LOG.debug("handleDNATConfigurationForRouterAssociation : Could not read Router Ports data "
 230                     + "object with id: {} to handle associate vpn {}", routerName, vpnName);
 231             return;
 232         }
 233         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 234         for (Ports port : optRouterPorts.get().nonnullPorts()) {
 235             String portName = port.getPortName();
 236             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 237             if (dpnId.equals(Uint64.ZERO)) {
 238                 LOG.warn("handleDNATConfigurationForRouterAssociation : DPN not found for {}, "
 239                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 240                 continue;
 241             }
 242
 243             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap()) {
 244                 //remove all NAT related entries with routerName
 245                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, null,
 246                 // intExtPortMap.getInternalIp(), externalIp);
 247                 //Create NAT entries with VPN Id
 248                 LOG.debug("handleDNATConfigurationForRouterAssociation : Updating DNAT flows with VPN metadata {} ",
 249                         vpnName);
 250                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, vpnName, networkId, intExtPortMap);
 251             }
 252         }
 253     }
 254
 255     void handleDNATConfigurationForRouterDisassociation(String routerName, String vpnName, String externalNetwork)
 256             throws ExecutionException, InterruptedException {
 257         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 258         Optional<RouterPorts> optRouterPorts =
 259                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 260         if (!optRouterPorts.isPresent()) {
 261             LOG.error("handleDNATConfigurationForRouterDisassociation : Could not read Router Ports "
 262                     + "data object with id: {} to handle disassociate vpn {}", routerName, vpnName);
 263             return;
 264         }
 265         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 266         for (Ports port : optRouterPorts.get().nonnullPorts()) {
 267             String portName = port.getPortName();
 268             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 269             if (dpnId.equals(Uint64.ZERO)) {
 270                 LOG.debug("handleDNATConfigurationForRouterDisassociation : DPN not found for {}, "
 271                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 272                 continue;
 273             }
 274             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap()) {
 275                 //remove all NAT related entries with routerName
 276                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, vpnName,
 277                 // intExtPortMap.getInternalIp(), externalIp);
 278                 //Create NAT entries with VPN Id
 279                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, null, networkId, intExtPortMap);
 280             }
 281         }
 282     }
 283
 284 }