dhcpservice/impl/src/main/java/org/opendaylight/netvirt/dhcpservice/jobs/DhcpInterfaceAddJob.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.jobs;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11 import static org.opendaylight.genius.infra.Datastore.OPERATIONAL;
  12
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.List;
  17 import java.util.concurrent.Callable;
  18 import java.util.concurrent.ExecutionException;
  19 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  20 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  21 import org.opendaylight.genius.interfacemanager.interfaces.IInterfaceManager;
  22 import org.opendaylight.genius.mdsalutil.NwConstants;
  23 import org.opendaylight.mdsal.binding.api.DataBroker;
  24 import org.opendaylight.netvirt.dhcpservice.DhcpExternalTunnelManager;
  25 import org.opendaylight.netvirt.dhcpservice.DhcpManager;
  26 import org.opendaylight.netvirt.dhcpservice.DhcpServiceUtils;
  27 import org.opendaylight.netvirt.dhcpservice.api.DhcpMConstants;
  28 import org.opendaylight.netvirt.elan.arp.responder.ArpResponderInput.ArpReponderInputBuilder;
  29 import org.opendaylight.netvirt.elan.arp.responder.ArpResponderUtil;
  30 import org.opendaylight.netvirt.elanmanager.api.IElanService;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.rpcs.rev160406.ItmRpcService;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dhcpservice.api.rev150710.subnet.dhcp.port.data.SubnetToDhcpPort;
  38 import org.opendaylight.yangtools.yang.common.Uint64;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 public class DhcpInterfaceAddJob implements Callable<List<? extends ListenableFuture<?>>> {
  43
  44     private static final Logger LOG = LoggerFactory.getLogger(DhcpInterfaceAddJob.class);
  45
  46     private final DhcpManager dhcpManager;
  47     private final DhcpExternalTunnelManager dhcpExternalTunnelManager;
  48     private final DataBroker dataBroker;
  49     private final ManagedNewTransactionRunner txRunner;
  50     private final Interface interfaceAdd;
  51     private final Uint64 dpnId;
  52     private final IInterfaceManager interfaceManager;
  53     private final IElanService elanService;
  54     private final ItmRpcService itmRpcService;
  55
  56     public DhcpInterfaceAddJob(DhcpManager dhcpManager, DhcpExternalTunnelManager dhcpExternalTunnelManager,
  57                                DataBroker dataBroker, Interface interfaceAdd, Uint64 dpnId,
  58                                IInterfaceManager interfaceManager, IElanService elanService,
  59                                ItmRpcService itmRpcService) {
  60         this.dhcpManager = dhcpManager;
  61         this.dhcpExternalTunnelManager = dhcpExternalTunnelManager;
  62         this.dataBroker = dataBroker;
  63         this.txRunner = new ManagedNewTransactionRunnerImpl(dataBroker);
  64         this.interfaceAdd = interfaceAdd;
  65         this.dpnId = dpnId;
  66         this.interfaceManager = interfaceManager;
  67         this.elanService = elanService;
  68         this.itmRpcService = itmRpcService;
  69     }
  70
  71     @Override
  72     public List<ListenableFuture<Void>> call() throws ExecutionException, InterruptedException {
  73         String interfaceName = interfaceAdd.getName();
  74         LOG.trace("Received add DCN for interface {}, dpid {}", interfaceName, dpnId);
  75         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
  76                 interfaceManager.getInterfaceInfoFromConfigDataStore(interfaceName);
  77         if (iface != null) {
  78             IfTunnel tunnelInterface = iface.augmentation(IfTunnel.class);
  79             if (tunnelInterface != null && !tunnelInterface.isInternal()) {
  80                 IpAddress tunnelIp = tunnelInterface.getTunnelDestination();
  81                 List<Uint64> dpns = DhcpServiceUtils.getListOfDpns(dataBroker);
  82                 if (dpns.contains(dpnId)) {
  83                     return dhcpExternalTunnelManager.handleTunnelStateUp(tunnelIp, dpnId);
  84                 }
  85                 return Collections.emptyList();
  86             }
  87         }
  88         if (!dpnId.equals(DhcpMConstants.INVALID_DPID)) {
  89             Port port = dhcpManager.getNeutronPort(interfaceName);
  90             Subnet subnet = dhcpManager.getNeutronSubnet(port);
  91             if (null == subnet || !subnet.isEnableDhcp()) {
  92                 LOG.debug("DHCP is not enabled for port {}", port.getName());
  93                 return Collections.emptyList();
  94             }
  95             List<ListenableFuture<Void>> futures = new ArrayList<>();
  96             // Support for VM migration use cases.
  97             futures.add(txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
  98                 tx -> DhcpServiceUtils.bindDhcpService(interfaceName, NwConstants.DHCP_TABLE, tx)));
  99             LOG.info("DhcpInterfaceEventListener add isEnableDhcp:{}", subnet.isEnableDhcp());
 100             futures.addAll(installDhcpEntries(interfaceAdd.getName(), dpnId));
 101             LOG.trace("Checking ElanDpnInterface {} for dpn {} ", interfaceName, dpnId);
 102             String subnetId = subnet.getUuid().getValue();
 103             java.util.Optional<SubnetToDhcpPort> subnetToDhcp = DhcpServiceUtils
 104                     .getSubnetDhcpPortData(dataBroker, subnetId);
 105             if (!subnetToDhcp.isPresent()) {
 106                 return Collections.emptyList();
 107             }
 108             LOG.trace("Installing the Arp responder for interface {} with DHCP MAC {} & IP {}.", interfaceName,
 109                     subnetToDhcp.get().getPortMacaddress(), subnetToDhcp.get().getPortFixedip());
 110             ArpReponderInputBuilder builder = new ArpReponderInputBuilder();
 111             builder.setDpId(dpnId.toJava()).setInterfaceName(interfaceName).setSpa(subnetToDhcp.get().getPortFixedip())
 112                     .setSha(subnetToDhcp.get().getPortMacaddress()).setLportTag(interfaceAdd.getIfIndex());
 113             builder.setInstructions(ArpResponderUtil.getInterfaceInstructions(interfaceManager, interfaceName,
 114                     subnetToDhcp.get().getPortFixedip(), subnetToDhcp.get().getPortMacaddress(), itmRpcService));
 115             elanService.addArpResponderFlow(builder.buildForInstallFlow());
 116             return futures;
 117         }
 118         return Collections.emptyList();
 119     }
 120
 121     private List<ListenableFuture<Void>> installDhcpEntries(String interfaceName, Uint64 dpId)
 122         throws ExecutionException, InterruptedException {
 123         String vmMacAddress = txRunner.applyWithNewReadWriteTransactionAndSubmit(OPERATIONAL,
 124             tx -> DhcpServiceUtils.getAndUpdateVmMacAddress(tx, interfaceName, dhcpManager)).get();
 125         return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(CONFIGURATION,
 126             tx -> dhcpManager.installDhcpEntries(dpId, vmMacAddress, tx)));
 127     }
 128 }