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