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 com.google.common.base.Optional;
  13 import java.util.List;
  14 import java.util.Objects;
  15 import java.util.concurrent.ExecutionException;
  16 import java.util.stream.Collectors;
  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.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.ProviderTypes;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.RouterPorts;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.Ports;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.natservice.rev160111.floating.ip.info.router.ports.ports.InternalToExternalPortMap;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.VpnMaps;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.VpnMap;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.rev150602.vpnmaps.vpnmap.RouterIds;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.opendaylight.yangtools.yang.common.Uint32;
  37 import org.opendaylight.yangtools.yang.common.Uint64;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 @Singleton
  42 public class NatVpnMapsChangeListener extends AsyncDataTreeChangeListenerBase<VpnMap, NatVpnMapsChangeListener> {
  43     private static final Logger LOG = LoggerFactory.getLogger(NatVpnMapsChangeListener.class);
  44     private final DataBroker dataBroker;
  45     private final ManagedNewTransactionRunner txRunner;
  46     private final FloatingIPListener floatingIpListener;
  47     private final OdlInterfaceRpcService interfaceManager;
  48     private final ExternalRoutersListener externalRoutersListener;
  49
  50     @Inject
  51     public NatVpnMapsChangeListener(final DataBroker dataBroker,
  52                                final FloatingIPListener floatingIpListener,
  53                                final OdlInterfaceRpcService interfaceManager,
  54                                final ExternalRoutersListener externalRoutersListener) {
  55         super(VpnMap.class, NatVpnMapsChangeListener.class);
  56         this.dataBroker = dataBroker;
  57         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  58         this.floatingIpListener = floatingIpListener;
  59         this.interfaceManager = interfaceManager;
  60         this.externalRoutersListener = externalRoutersListener;
  61     }
  62
  63     @Override
  64     @PostConstruct
  65     public void init() {
  66         LOG.info("{} init", getClass().getSimpleName());
  67         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  68     }
  69
  70     @Override
  71     protected InstanceIdentifier<VpnMap> getWildCardPath() {
  72         return InstanceIdentifier.create(VpnMaps.class).child(VpnMap.class);
  73     }
  74
  75     @Override
  76     protected void add(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  77         Uuid vpnUuid = vpnMap.getVpnId();
  78         String vpnName = vpnUuid.getValue();
  79         if (vpnMap.getRouterIds() != null) {
  80             vpnMap.getRouterIds().stream()
  81                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
  82                 .forEach(router -> {
  83                     String routerName = router.getRouterId().getValue();
  84                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
  85                     onRouterAssociatedToVpn(vpnName, routerName);
  86                 });
  87         }
  88     }
  89
  90     @Override
  91     protected void remove(InstanceIdentifier<VpnMap> identifier, VpnMap vpnMap) {
  92         Uuid vpnUuid = vpnMap.getVpnId();
  93         String vpnName = vpnUuid.getValue();
  94         if (vpnMap.getRouterIds() != null) {
  95             vpnMap.getRouterIds().stream()
  96                 .filter(router -> !(Objects.equals(router.getRouterId(), vpnUuid)))
  97                 .forEach(router -> {
  98                     String routerName = router.getRouterId().getValue();
  99                     LOG.info("REMOVE: Router {} is disassociated from Vpn {}", routerName, vpnName);
 100                     onRouterDisassociatedFromVpn(vpnName, routerName);
 101                 });
 102         }
 103     }
 104
 105     @Override
 106     protected void update(InstanceIdentifier<VpnMap> identifier, VpnMap original, VpnMap updated) {
 107         Uuid vpnUuid = updated.getVpnId();
 108         String vpnName = vpnUuid.getValue();
 109
 110         List<RouterIds> updatedRouterIdList = updated.getRouterIds();
 111         List<RouterIds> originalRouterIdList = original.getRouterIds();
 112         List<RouterIds> routersAddedList = null;
 113         List<RouterIds> routersRemovedList = null;
 114
 115         if (originalRouterIdList == null && updatedRouterIdList != null) {
 116             routersAddedList = updatedRouterIdList;
 117         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 118             routersAddedList = updatedRouterIdList.stream()
 119                 .filter(routerId -> (!originalRouterIdList.contains(routerId)))
 120                 .collect(Collectors.toList());
 121         }
 122
 123         if (originalRouterIdList != null && updatedRouterIdList == null) {
 124             routersRemovedList = originalRouterIdList;
 125         } else if (originalRouterIdList != null && updatedRouterIdList != null) {
 126             routersRemovedList = originalRouterIdList.stream()
 127                 .filter(routerId -> (!updatedRouterIdList.contains(routerId)))
 128                 .collect(Collectors.toList());
 129         }
 130
 131         if (routersAddedList != null) {
 132             routersAddedList.stream()
 133                 .filter(router -> !(Objects.equals(router.getRouterId(), updated.getVpnId())))
 134                 .forEach(router -> {
 135                     String routerName = router.getRouterId().getValue();
 136                     onRouterAssociatedToVpn(vpnName, routerName);
 137                 });
 138         }
 139
 140         if (routersRemovedList != null) {
 141             routersRemovedList.stream()
 142                 .filter(router -> !(Objects.equals(router.getRouterId(), original.getVpnId())))
 143                 .forEach(router -> {
 144                     String routerName = router.getRouterId().getValue();
 145                     onRouterDisassociatedFromVpn(vpnName, routerName);
 146                 });
 147         }
 148     }
 149
 150     @Override
 151     protected NatVpnMapsChangeListener getDataTreeChangeListener() {
 152         return this;
 153     }
 154
 155     public void onRouterAssociatedToVpn(String vpnName, String routerName) {
 156
 157         //check router is associated to external network
 158         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 159         if (extNetwork != null) {
 160             try {
 161                 LOG.debug("onRouterAssociatedToVpn : Router {} is associated with ext nw {}", routerName, extNetwork);
 162                 handleDNATConfigurationForRouterAssociation(routerName, vpnName, extNetwork);
 163                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 164                 if (extNetworkUuid == null) {
 165                     LOG.error("onRouterAssociatedToVpn : Unable to retrieve external network Uuid for router {}",
 166                             routerName);
 167                     return;
 168                 }
 169                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 170                         extNetworkUuid);
 171                 if (extNwProvType == null) {
 172                     LOG.error("onRouterAssociatedToVpn : External Network Provider Type missing");
 173                     return;
 174                 }
 175                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 176                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 177                     tx -> externalRoutersListener.changeLocalVpnIdToBgpVpnId(routerName, routerId, vpnName, tx,
 178                                 extNwProvType)).get();
 179             } catch (InterruptedException | ExecutionException e) {
 180                 LOG.error("Error changling local VPN identifier to BGP VPN identifier", e);
 181             }
 182         } else {
 183             LOG.debug("onRouterAssociatedToVpn : Ignoring the Router {} association with VPN {} "
 184                     + "since it is not external router", routerName, vpnName);
 185         }
 186     }
 187
 188     /**
 189      * router disassociation from vpn.
 190      */
 191
 192     public void onRouterDisassociatedFromVpn(String vpnName, String routerName) {
 193
 194         //check router is associated to external network
 195         String extNetwork = NatUtil.getAssociatedExternalNetwork(dataBroker, routerName);
 196         if (extNetwork != null) {
 197             try {
 198                 LOG.debug("onRouterDisassociatedFromVpn : Router {} is associated with ext nw {}", routerName,
 199                         extNetwork);
 200                 handleDNATConfigurationForRouterDisassociation(routerName, vpnName, extNetwork);
 201                 Uuid extNetworkUuid = NatUtil.getNetworkIdFromRouterName(dataBroker, routerName);
 202                 if (extNetworkUuid == null) {
 203                     LOG.error("onRouterDisassociatedFromVpn : Unable to retrieve external network Uuid for router {}",
 204                             routerName);
 205                     return;
 206                 }
 207                 ProviderTypes extNwProvType = NatEvpnUtil.getExtNwProvTypeFromRouterName(dataBroker, routerName,
 208                         extNetworkUuid);
 209                 if (extNwProvType == null) {
 210                     LOG.error("onRouterDisassociatedFromVpn : External Network Provider Type missing");
 211                     return;
 212                 }
 213                 Uint32 routerId = NatUtil.getVpnId(dataBroker, routerName);
 214                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 215                     tx -> externalRoutersListener.changeBgpVpnIdToLocalVpnId(routerName, routerId, vpnName, tx,
 216                                 extNwProvType)).get();
 217             } catch (InterruptedException | ExecutionException e) {
 218                 LOG.error("Error changing BGP VPN identifier to local VPN identifier", e);
 219             }
 220         } else {
 221             LOG.debug("onRouterDisassociatedFromVpn : Ignoring the Router {} association with VPN {} "
 222                     + "since it is not external router", routerName, vpnName);
 223         }
 224     }
 225
 226     void handleDNATConfigurationForRouterAssociation(String routerName, String vpnName, String externalNetwork)
 227             throws ExecutionException, InterruptedException {
 228         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 229         Optional<RouterPorts> optRouterPorts =
 230                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 231         if (!optRouterPorts.isPresent()) {
 232             LOG.debug("handleDNATConfigurationForRouterAssociation : Could not read Router Ports data "
 233                     + "object with id: {} to handle associate vpn {}", routerName, vpnName);
 234             return;
 235         }
 236         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 237         for (Ports port : optRouterPorts.get().nonnullPorts()) {
 238             String portName = port.getPortName();
 239             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 240             if (dpnId.equals(Uint64.ZERO)) {
 241                 LOG.warn("handleDNATConfigurationForRouterAssociation : DPN not found for {}, "
 242                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 243                 continue;
 244             }
 245
 246             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap()) {
 247                 //remove all NAT related entries with routerName
 248                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, null,
 249                 // intExtPortMap.getInternalIp(), externalIp);
 250                 //Create NAT entries with VPN Id
 251                 LOG.debug("handleDNATConfigurationForRouterAssociation : Updating DNAT flows with VPN metadata {} ",
 252                         vpnName);
 253                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, vpnName, networkId, intExtPortMap);
 254             }
 255         }
 256     }
 257
 258     void handleDNATConfigurationForRouterDisassociation(String routerName, String vpnName, String externalNetwork)
 259             throws ExecutionException, InterruptedException {
 260         InstanceIdentifier<RouterPorts> routerPortsId = NatUtil.getRouterPortsId(routerName);
 261         Optional<RouterPorts> optRouterPorts =
 262                 MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routerPortsId);
 263         if (!optRouterPorts.isPresent()) {
 264             LOG.error("handleDNATConfigurationForRouterDisassociation : Could not read Router Ports "
 265                     + "data object with id: {} to handle disassociate vpn {}", routerName, vpnName);
 266             return;
 267         }
 268         Uuid networkId = Uuid.getDefaultInstance(externalNetwork);
 269         for (Ports port : optRouterPorts.get().nonnullPorts()) {
 270             String portName = port.getPortName();
 271             Uint64 dpnId = NatUtil.getDpnForInterface(interfaceManager, portName);
 272             if (dpnId.equals(Uint64.ZERO)) {
 273                 LOG.debug("handleDNATConfigurationForRouterDisassociation : DPN not found for {}, "
 274                         + "skip handling of router {} association with vpn {}", portName, routerName, vpnName);
 275                 continue;
 276             }
 277             for (InternalToExternalPortMap intExtPortMap : port.nonnullInternalToExternalPortMap()) {
 278                 //remove all NAT related entries with routerName
 279                 //floatingIpListener.removeNATOnlyFlowEntries(dpnId, portName, routerName, vpnName,
 280                 // intExtPortMap.getInternalIp(), externalIp);
 281                 //Create NAT entries with VPN Id
 282                 floatingIpListener.createNATOnlyFlowEntries(dpnId, routerName, null, networkId, intExtPortMap);
 283             }
 284         }
 285     }
 286
 287 }