dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/DhcpMcastMacListener.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.dhcpservice;
   9
  10 import com.google.common.util.concurrent.MoreExecutors;
  11 import java.util.List;
  12 import java.util.concurrent.TimeUnit;
  13 import javax.annotation.PreDestroy;
  14 import javax.inject.Inject;
  15 import javax.inject.Singleton;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.genius.utils.hwvtep.HwvtepSouthboundConstants;
  18 import org.opendaylight.infrautils.utils.concurrent.Executors;
  19 import org.opendaylight.mdsal.binding.api.DataBroker;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  22 import org.opendaylight.serviceutils.tools.listener.AbstractAsyncDataTreeChangeListener;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.config.rev150710.DhcpserviceConfig;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.RemoteMcastMacs;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.opendaylight.yangtools.yang.common.Uint64;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 @Singleton
  38 public class DhcpMcastMacListener
  39         extends AbstractAsyncDataTreeChangeListener<RemoteMcastMacs> {
  40
  41     private static final long TIMEOUT_FOR_SHUTDOWN = 30;
  42
  43     private static final Logger LOG = LoggerFactory.getLogger(DhcpMcastMacListener.class);
  44
  45     private final DataBroker dataBroker;
  46     private final DhcpExternalTunnelManager externalTunnelManager;
  47     private final DhcpL2GwUtil dhcpL2GwUtil;
  48     private final DhcpserviceConfig config;
  49
  50     @Inject
  51     public DhcpMcastMacListener(DhcpExternalTunnelManager dhcpManager, DhcpL2GwUtil dhcpL2GwUtil, DataBroker dataBroker,
  52                                 final DhcpserviceConfig config) {
  53         super(dataBroker, LogicalDatastoreType.CONFIGURATION,
  54               InstanceIdentifier.create(NetworkTopology.class).child(Topology.class,
  55                                      new TopologyKey(HwvtepSouthboundConstants.HWVTEP_TOPOLOGY_ID)).child(Node.class)
  56                       .augmentation(HwvtepGlobalAugmentation.class).child(RemoteMcastMacs.class),
  57               Executors.newSingleThreadExecutor("IdPoolListener", LOG));
  58         this.externalTunnelManager = dhcpManager;
  59         this.dataBroker = dataBroker;
  60         this.dhcpL2GwUtil = dhcpL2GwUtil;
  61         this.config = config;
  62     }
  63
  64     @Override
  65     public void update(@NonNull InstanceIdentifier<RemoteMcastMacs> identifier, @NonNull RemoteMcastMacs original,
  66                        @NonNull RemoteMcastMacs update) {
  67         // NOOP
  68     }
  69
  70     @Override
  71     public void add(@NonNull InstanceIdentifier<RemoteMcastMacs> identifier, @NonNull RemoteMcastMacs remoteMcastMacs) {
  72         String elanInstanceName = getElanName(remoteMcastMacs);
  73         IpAddress tunnelIp = dhcpL2GwUtil.getHwvtepNodeTunnelIp(identifier.firstIdentifierOf(Node.class));
  74         if (tunnelIp == null) {
  75             LOG.error("Could not find tunnelIp for {}", identifier);
  76             return;
  77         }
  78         List<Uint64> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
  79         Uint64 designatedDpnId = externalTunnelManager.designateDpnId(tunnelIp, elanInstanceName, dpns);
  80         if (designatedDpnId == null || designatedDpnId.equals(DhcpMConstants.INVALID_DPID)) {
  81             LOG.error("Unable to designate a DPN for {}", identifier);
  82         }
  83     }
  84
  85     @Override
  86     public void remove(@NonNull InstanceIdentifier<RemoteMcastMacs> identifier,
  87                        @NonNull RemoteMcastMacs remoteMcastMacs) {
  88         String elanInstanceName = getElanName(remoteMcastMacs);
  89         IpAddress tunnelIp = dhcpL2GwUtil.getHwvtepNodeTunnelIp(identifier.firstIdentifierOf(Node.class));
  90         if (tunnelIp == null) {
  91             LOG.error("Could not find tunnelIp for {}", identifier);
  92             return;
  93         }
  94         Uint64 designatedDpnId = externalTunnelManager.readDesignatedSwitchesForExternalTunnel(
  95                 tunnelIp, elanInstanceName);
  96         if (designatedDpnId == null) {
  97             LOG.error("Could not find designated DPN ID elanInstanceName {}, tunnelIp {}", elanInstanceName, tunnelIp);
  98             return;
  99         }
 100         externalTunnelManager.removeDesignatedSwitchForExternalTunnel(designatedDpnId, tunnelIp, elanInstanceName);
 101     }
 102
 103     @Override
 104     @PreDestroy
 105     public void close() {
 106         if (config.isControllerDhcpEnabled()) {
 107             super.close();
 108         }
 109         MoreExecutors.shutdownAndAwaitTermination(getExecutorService(), TIMEOUT_FOR_SHUTDOWN, TimeUnit.SECONDS);
 110     }
 111
 112     private String getElanName(RemoteMcastMacs mac) {
 113         InstanceIdentifier<LogicalSwitches> logicalSwitchIid = (InstanceIdentifier<LogicalSwitches>)
 114                 mac.getLogicalSwitchRef().getValue();
 115         return logicalSwitchIid.firstKeyOf(LogicalSwitches.class).getHwvtepNodeName().getValue();
 116     }
 117 }