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