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.ArrayList;
  13 import java.util.List;
  14 import java.util.Objects;
  15 import java.util.Optional;
  16 import java.util.concurrent.ExecutionException;
  17 import java.util.stream.Collectors;
  18 import javax.annotation.PreDestroy;
  19 import javax.inject.Inject;
  20 import javax.inject.Singleton;
  21 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  22 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  23 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  24 import org.opendaylight.infrautils.utils.concurrent.Executors;
  25 import org.opendaylight.mdsal.binding.api.DataBroker;
  26 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  27 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  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.rev160111.ProviderTypes;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.RouterPorts;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.Ports;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.ports.InternalToExternalPortMap;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.VpnMaps;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.VpnMap;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.vpnmap.RouterIds;
  37 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  38 import org.opendaylight.yangtools.yang.common.Uint32;
  39 import org.opendaylight.yangtools.yang.common.Uint64;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 @Singleton
  44 public class NatVpnMapsChangeListener extends AbstractAsyncDataTreeChangeListener<VpnMap> {
  45     private static final Logger LOG = LoggerFactory.getLogger(NatVpnMapsChangeListener.class);
  46     private final DataBroker dataBroker;
  47     private final ManagedNewTransactionRunner txRunner;
  48     private final FloatingIPListener floatingIpListener;
  49     private final OdlInterfaceRpcService interfaceManager;
  50     private final ExternalRoutersListener externalRoutersListener;
  51
  52     @Inject
  53     public NatVpnMapsChangeListener(final DataBroker dataBroker,
  54                                final FloatingIPListener floatingIpListener,
  55                                final OdlInterfaceRpcService interfaceManager,
  56                                final ExternalRoutersListener externalRoutersListener) {
  57         super(dataBroker, LogicalDatastoreType.CONFIGURATION, InstanceIdentifier.create(VpnMaps.class)
  58                 .child(VpnMap.class),
  59                 Executors.newListeningSingleThreadExecutor("NatVpnMapsChangeListener", LOG));
  60         this.dataBroker = dataBroker;
  61         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  62         this.floatingIpListener = floatingIpListener;
  63         this.interfaceManager = interfaceManager;
  64         this.externalRoutersListener = externalRoutersListener;
  65     }
  66
  67     public void init() {
  68         LOG.info("{} init", getClass().getSimpleName());
  69     }
  70
  71     @Override
  72     @PreDestroy
  73     public void close() {
  74         super.close();
  75         Executors.shutdownAndAwaitTermination(getExecutorService());
  76     }
  77
  78     @Override
  79     public void add(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  80         Uuid vpnUuid = vpnMap.getVpnId();
  81         String vpnName = vpnUuid.getValue();
  82         if (vpnMap.getRouterIds() != null) {
  83             vpnMap.getRouterIds().values().stream()
  84                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
  85                 .forEach(router -> {
  86                     String routerName = router.getRouterId().getValue();
  87                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
  88                     onRouterAssociatedToVpn(vpnName, routerName);
  89                 });
  90         }
  91     }
  92
  93     @Override
  94     public void remove(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  95         Uuid vpnUuid = vpnMap.getVpnId();
  96         String vpnName = vpnUuid.getValue();
  97         if (vpnMap.getRouterIds() != null) {
  98             vpnMap.getRouterIds().values().stream()
  99                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
 100                 .forEach(router -> {
 101                     String routerName = router.getRouterId().getValue();
 102                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
 103                     onRouterDisassociatedFromVpn(vpnName, routerName);
 104                 });
 105         }
 106     }
 107
 108     @Override
 109     public void update(InstanceIdentifier<VpnMap> identifier, VpnMap original, VpnMap updated) {
 110         Uuid vpnUuid = updated.getVpnId();
 111         String vpnName = vpnUuid.getValue();
 112
 113         List<RouterIds> updatedRouterIdList = new ArrayList<RouterIds>(updated.getRouterIds().values());
 114         List<RouterIds> originalRouterIdList = new ArrayList<RouterIds>(original.getRouterIds().values());
 115         List<RouterIds> routersAddedList = null;
 116         List<RouterIds> routersRemovedList = null;
 117
 118         if (originalRouterIdList == null && updatedRouterIdList != null) {
 119             routersAddedList = updatedRouterIdList;
 120         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 121             routersAddedList = updatedRouterIdList.stream()
 122                 .filter(routerId -> (!originalRouterIdList.contains(routerId)))
 123                 .collect(Collectors.toList());
 124         }
 125
 126         if (originalRouterIdList != null && updatedRouterIdList == null) {
 127             routersRemovedList = originalRouterIdList;
 128         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 129             routersRemovedList = originalRouterIdList.stream()
 130                 .filter(routerId -> (!updatedRouterIdList.contains(routerId)))
 131                 .collect(Collectors.toList());
 132         }
 133
 134         if (routersAddedList != null) {
 135             routersAddedList.stream()
 136                 .filter(router -> !(Objects.equals(router.getRouterId(), updated.getVpnId())))
 137                 .forEach(router -> {
 138                     String routerName = router.getRouterId().getValue();
 139                     onRouterAssociatedToVpn(vpnName, routerName);
 140                 });
 141         }
 142
 143         if (routersRemovedList != null) {
 144             routersRemovedList.stream()
 145                 .filter(router -> !(Objects.equals(router.getRouterId(), original.getVpnId())))
 146                 .forEach(router -> {
 147                     String routerName = router.getRouterId().getValue();
 148                     onRouterDisassociatedFromVpn(vpnName, routerName);
 149                 });
 150         }
 151     }
 152
 153     public void onRouterAssociatedToVpn(String vpnName, String routerName) {
 154
 155         //check router is associated to external network
 156         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 157         if (extNetwork != null) {
 158             try {
 159                 LOG.debug("onRouterAssociatedToVpn : Router {} is associated with ext nw {}", routerName, extNetwork);
 160                 handleDNATConfigurationForRouterAssociation(routerName, vpnName, extNetwork);
 161                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 162                 if (extNetworkUuid == null) {
 163                     LOG.error("onRouterAssociatedToVpn : Unable to retrieve external network Uuid for router {}",
 164                             routerName);
 165                     return;
 166                 }
 167                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 168                         extNetworkUuid);
 169                 if (extNwProvType == null) {
 170                     LOG.error("onRouterAssociatedToVpn : External Network Provider Type missing");
 171                     return;
 172                 }
 173                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 174                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 175                     tx -> externalRoutersListener.changeLocalVpnIdToBgpVpnId(routerName, routerId, extNetwork,
 176                         vpnName, tx, extNwProvType)).get();
 177             } catch (InterruptedException | ExecutionException e) {
 178                 LOG.error("Error changling local VPN identifier to BGP VPN identifier", e);
 179             }
 180         } else {
 181             LOG.debug("onRouterAssociatedToVpn : Ignoring the Router {} association with VPN {} "
 182                     + "since it is not external router", routerName, vpnName);
 183         }
 184     }
 185
 186     /**
 187      * router disassociation from vpn.
 188      */
 189
 190     public void onRouterDisassociatedFromVpn(String vpnName, String routerName) {
 191
 192         //check router is associated to external network
 193         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 194         if (extNetwork != null) {
 195             try {
 196                 LOG.debug("onRouterDisassociatedFromVpn : Router {} is associated with ext nw {}", routerName,
 197                         extNetwork);
 198                 handleDNATConfigurationForRouterDisassociation(routerName, vpnName, extNetwork);
 199                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 200                 if (extNetworkUuid == null) {
 201                     LOG.error("onRouterDisassociatedFromVpn : Unable to retrieve external network Uuid for router {}",
 202                             routerName);
 203                     return;
 204                 }
 205                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 206                         extNetworkUuid);
 207                 if (extNwProvType == null) {
 208                     LOG.error("onRouterDisassociatedFromVpn : External Network Provider Type missing");
 209                     return;
 210                 }
 211                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 212                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 213                     tx -> externalRoutersListener.changeBgpVpnIdToLocalVpnId(routerName, routerId, extNetwork,
 214                         vpnName, tx, extNwProvType)).get();
 215             } catch (InterruptedException | ExecutionException e) {
 216                 LOG.error("Error changing BGP VPN identifier to local VPN identifier", e);
 217             }
 218         } else {
 219             LOG.debug("onRouterDisassociatedFromVpn : Ignoring the Router {} association with VPN {} "
 220                     + "since it is not external router", routerName, vpnName);
 221         }
 222     }
 223
 224     void handleDNATConfigurationForRouterAssociation(String routerName, String vpnName, String externalNetwork)
 225             throws ExecutionException, InterruptedException {
 226         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 227         Optional<RouterPorts> optRouterPorts =
 228                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 229         if (!optRouterPorts.isPresent()) {
 230             LOG.debug("handleDNATConfigurationForRouterAssociation : Could not read Router Ports data "
 231                     + "object with id: {} to handle associate vpn {}", routerName, vpnName);
 232             return;
 233         }
 234         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 235         for (Ports port : optRouterPorts.get().nonnullPorts().values()) {
 236             String portName = port.getPortName();
 237             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 238             if (dpnId.equals(Uint64.ZERO)) {
 239                 LOG.warn("handleDNATConfigurationForRouterAssociation : DPN not found for {}, "
 240                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 241                 continue;
 242             }
 243
 244             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap().values()) {
 245                 //remove all NAT related entries with routerName
 246                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, null,
 247                 // intExtPortMap.getInternalIp(), externalIp);
 248                 //Create NAT entries with VPN Id
 249                 LOG.debug("handleDNATConfigurationForRouterAssociation : Updating DNAT flows with VPN metadata {} ",
 250                         vpnName);
 251                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, vpnName, networkId, intExtPortMap);
 252             }
 253         }
 254     }
 255
 256     void handleDNATConfigurationForRouterDisassociation(String routerName, String vpnName, String externalNetwork)
 257             throws ExecutionException, InterruptedException {
 258         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 259         Optional<RouterPorts> optRouterPorts =
 260                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 261         if (!optRouterPorts.isPresent()) {
 262             LOG.error("handleDNATConfigurationForRouterDisassociation : Could not read Router Ports "
 263                     + "data object with id: {} to handle disassociate vpn {}", routerName, vpnName);
 264             return;
 265         }
 266         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 267         for (Ports port : optRouterPorts.get().nonnullPorts().values()) {
 268             String portName = port.getPortName();
 269             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 270             if (dpnId.equals(Uint64.ZERO)) {
 271                 LOG.debug("handleDNATConfigurationForRouterDisassociation : DPN not found for {}, "
 272                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 273                 continue;
 274             }
 275             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap().values()) {
 276                 //remove all NAT related entries with routerName
 277                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, vpnName,
 278                 // intExtPortMap.getInternalIp(), externalIp);
 279                 //Create NAT entries with VPN Id
 280                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, null, networkId, intExtPortMap);
 281             }
 282         }
 283     }
 284
 285 }