itm/itm-impl/src/main/java/org/opendaylight/vpnservice/itm/confighelpers/ItmInternalTunnelAddWorker.java

   1 /*
   2  * Copyright (c) 2015 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.vpnservice.itm.confighelpers;
   9
  10 import java.math.BigInteger;
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.concurrent.Callable;
  14
  15 import com.google.common.util.concurrent.FutureCallback;
  16 import com.google.common.util.concurrent.ListenableFuture;
  17
  18 import org.opendaylight.vpnservice.itm.impl.ItmUtils;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.idmanager.rev150403.IdManagerService;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.TunnelTypeBase;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.TunnelTypeGre;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.TunnelTypeVxlan;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.DpnEndpoints;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.DpnEndpointsBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.ExternalTunnelList;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.TunnelList;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.dpn.endpoints.DPNTEPsInfo;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.dpn.endpoints.dpn.teps.info.TunnelEndPoints;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.external.tunnel.list.ExternalTunnel;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.external.tunnel.list.ExternalTunnelBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.external.tunnel.list.ExternalTunnelKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.Tunnel;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.TunnelBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.itm.op.rev150701.tunnel.list.TunnelKey;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 public class ItmInternalTunnelAddWorker {
  45      private static final Logger logger = LoggerFactory.getLogger(ItmInternalTunnelAddWorker.class) ;
  46      private static final FutureCallback<Void> DEFAULT_CALLBACK =
  47              new FutureCallback<Void>() {
  48                  public void onSuccess(Void result) {
  49                      logger.debug("Success in Datastore operation");
  50                  }
  51
  52                  public void onFailure(Throwable error) {
  53                      logger.error("Error in Datastore operation", error);
  54                  };
  55              };
  56
  57
  58     public static List<ListenableFuture<Void>> build_all_tunnels(DataBroker dataBroker, IdManagerService idManagerService,
  59                                                                  List<DPNTEPsInfo> cfgdDpnList, List<DPNTEPsInfo> meshedDpnList) {
  60         logger.trace( "Building tunnels with DPN List {} " , cfgdDpnList );
  61         List<ListenableFuture<Void>> futures = new ArrayList<>();
  62         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  63         if( null == cfgdDpnList || cfgdDpnList.isEmpty()) {
  64             logger.error(" Build Tunnels was invoked with empty list");
  65             return null;
  66          }
  67
  68         for( DPNTEPsInfo dpn : cfgdDpnList) {
  69             //#####if dpn is not in meshedDpnList
  70             build_tunnel_from(dpn, meshedDpnList, dataBroker, idManagerService, t, futures);
  71             if(null == meshedDpnList) {
  72                 meshedDpnList = new ArrayList<DPNTEPsInfo>() ;
  73             }
  74             meshedDpnList.add(dpn) ;
  75             // Update the operational datastore -- FIXME -- Error Handling
  76             updateOperationalDatastore(dataBroker, dpn, t, futures) ;
  77         }
  78         futures.add( t.submit()) ;
  79         return futures ;
  80     }
  81
  82     private static void updateOperationalDatastore(DataBroker dataBroker, DPNTEPsInfo dpn, WriteTransaction t, List<ListenableFuture<Void>> futures) {
  83         logger.debug("Updating CONFIGURATION datastore with DPN {} ", dpn);
  84         InstanceIdentifier<DpnEndpoints> dep = InstanceIdentifier.builder( DpnEndpoints.class).build() ;
  85         List<DPNTEPsInfo> dpnList = new ArrayList<DPNTEPsInfo>() ;
  86         dpnList.add(dpn) ;
  87         DpnEndpoints tnlBuilder = new DpnEndpointsBuilder().setDPNTEPsInfo(dpnList).build() ;
  88         t.merge(LogicalDatastoreType.CONFIGURATION, dep, tnlBuilder, true);
  89     }
  90
  91     private static void build_tunnel_from( DPNTEPsInfo srcDpn,List<DPNTEPsInfo> meshedDpnList, DataBroker dataBroker,  IdManagerService idManagerService, WriteTransaction t, List<ListenableFuture<Void>> futures) {
  92         logger.trace( "Building tunnels from DPN {} " , srcDpn );
  93
  94         if( null == meshedDpnList || 0 == meshedDpnList.size()) {
  95             logger.debug( "No DPN in the mesh ");
  96             return ;
  97         }
  98         for( DPNTEPsInfo dstDpn: meshedDpnList) {
  99             if ( ! srcDpn.equals(dstDpn) )
 100                     wireUpWithinTransportZone(srcDpn, dstDpn, dataBroker, idManagerService, t, futures) ;
 101         }
 102
 103    }
 104
 105     private static void wireUpWithinTransportZone( DPNTEPsInfo srcDpn, DPNTEPsInfo dstDpn, DataBroker dataBroker,
 106                                                    IdManagerService idManagerService, WriteTransaction t, List<ListenableFuture<Void>> futures) {
 107         logger.trace( "Wiring up within Transport Zone for Dpns {}, {} " , srcDpn, dstDpn );
 108         List<TunnelEndPoints> srcEndPts = srcDpn.getTunnelEndPoints();
 109         List<TunnelEndPoints> dstEndPts = dstDpn.getTunnelEndPoints();
 110
 111         for( TunnelEndPoints srcte : srcEndPts) {
 112             for( TunnelEndPoints dstte : dstEndPts ) {
 113                 // Compare the Transport zones
 114               if (!srcDpn.getDPNID().equals(dstDpn.getDPNID())) {
 115                 if( (srcte.getTransportZone().equals(dstte.getTransportZone()))) {
 116                      // wire them up
 117                      wireUpBidirectionalTunnel( srcte, dstte, srcDpn.getDPNID(), dstDpn.getDPNID(), dataBroker, idManagerService, t, futures );
 118                      // CHECK THIS -- Assumption -- One end point per Dpn per transport zone
 119                      break ;
 120                 }
 121               }
 122             }
 123          }
 124     }
 125
 126     private static void wireUpBidirectionalTunnel( TunnelEndPoints srcte, TunnelEndPoints dstte, BigInteger srcDpnId, BigInteger dstDpnId,
 127         DataBroker dataBroker,  IdManagerService idManagerService, WriteTransaction t, List<ListenableFuture<Void>> futures) {
 128        // Setup the flow for LLDP monitoring -- PUNT TO CONTROLLER
 129        //  setUpOrRemoveTerminatingServiceTable(srcDpnId, true);
 130        //  setUpOrRemoveTerminatingServiceTable(dstDpnId, true);
 131
 132         // Create the forward direction tunnel
 133         if(!wireUp( srcte, dstte, srcDpnId, dstDpnId, dataBroker, idManagerService, t, futures ))
 134            logger.error("Could not build tunnel between end points {}, {} " , srcte, dstte );
 135
 136         // CHECK IF FORWARD IS NOT BUILT , REVERSE CAN BE BUILT
 137       // Create the tunnel for the reverse direction
 138        if(! wireUp( dstte, srcte, dstDpnId, srcDpnId, dataBroker, idManagerService, t, futures ))
 139           logger.error("Could not build tunnel between end points {}, {} " , dstte, srcte);
 140     }
 141
 142     private static boolean wireUp(TunnelEndPoints srcte, TunnelEndPoints dstte, BigInteger srcDpnId, BigInteger dstDpnId ,
 143                                   DataBroker dataBroker, IdManagerService idManagerService, WriteTransaction t, List<ListenableFuture<Void>> futures) {
 144         // Wire Up logic
 145         logger.trace( "Wiring between source tunnel end points {}, destination tunnel end points {} " , srcte, dstte );
 146         String interfaceName = srcte.getInterfaceName() ;
 147         Class<? extends TunnelTypeBase> tunType = srcte.getTunnelType();
 148         String ifDescription = srcte.getTunnelType().getName();
 149         // Form the trunk Interface Name
 150         String trunkInterfaceName = ItmUtils.getTrunkInterfaceName(idManagerService, interfaceName,srcte.getIpAddress().getIpv4Address().getValue(), dstte.getIpAddress().getIpv4Address().getValue()) ;
 151         IpAddress gwyIpAddress = ( srcte.getSubnetMask().equals(dstte.getSubnetMask()) ) ? null : srcte.getGwIpAddress() ;
 152         logger.debug(  " Creating Trunk Interface with parameters trunk I/f Name - {}, parent I/f name - {}, source IP - {}, destination IP - {} gateway IP - {}",trunkInterfaceName, interfaceName, srcte.getIpAddress(), dstte.getIpAddress(), gwyIpAddress ) ;
 153         Interface iface = ItmUtils.buildTunnelInterface(srcDpnId, trunkInterfaceName, String.format( "%s %s",ifDescription, "Trunk Interface"), true, tunType, srcte.getIpAddress(), dstte.getIpAddress(), gwyIpAddress) ;
 154         logger.debug(  " Trunk Interface builder - {} ", iface ) ;
 155         InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkInterfaceName);
 156         logger.debug(  " Trunk Interface Identifier - {} ", trunkIdentifier ) ;
 157         logger.trace(  " Writing Trunk Interface to Config DS {}, {} ", trunkIdentifier, iface ) ;
 158         t.merge(LogicalDatastoreType.CONFIGURATION, trunkIdentifier, iface, true);
 159         // also update itm-state ds?
 160         InstanceIdentifier<Tunnel> path = InstanceIdentifier.create(
 161                 TunnelList.class)
 162                     .child(Tunnel.class, new TunnelKey(dstDpnId, srcDpnId));
 163         Tunnel tnl = new TunnelBuilder().setKey(new TunnelKey(dstDpnId, srcDpnId))
 164                                        .setDestinationDPN(dstDpnId)
 165                                        .setSourceDPN(srcDpnId)
 166                                        .setTunnelInterfaceName(trunkInterfaceName).build();
 167         ItmUtils.asyncUpdate(LogicalDatastoreType.CONFIGURATION, path, tnl, dataBroker, DEFAULT_CALLBACK);
 168         return true;
 169     }
 170
 171 }