interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/renderer/ovs/statehelpers/OvsInterfaceStateRemoveHelper.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.genius.interfacemanager.renderer.ovs.statehelpers;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  13 import org.opendaylight.genius.interfacemanager.IfmUtil;
  14 import org.opendaylight.genius.interfacemanager.commons.AlivenessMonitorUtils;
  15 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  16 import org.opendaylight.genius.interfacemanager.commons.InterfaceMetaUtils;
  17 import org.opendaylight.genius.interfacemanager.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  18 import org.opendaylight.genius.mdsalutil.NwConstants;
  19 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.alivenessmonitor.rev160411.AlivenessMonitorService;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import java.math.BigInteger;
  29 import java.util.ArrayList;
  30 import java.util.List;
  31
  32 public class OvsInterfaceStateRemoveHelper {
  33     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceStateRemoveHelper.class);
  34
  35     public static List<ListenableFuture<Void>> removeInterfaceStateConfiguration(IdManagerService idManager, IMdsalApiManager mdsalApiManager,
  36                                                                                  AlivenessMonitorService alivenessMonitorService,
  37                                                                                  NodeConnectorId nodeConnectorIdNew, NodeConnectorId nodeConnectorIdOld,
  38                                                                                  DataBroker dataBroker, String interfaceName,
  39                                                                                  FlowCapableNodeConnector fcNodeConnectorOld,
  40                                                                                  boolean isNodePresent,
  41                                                                                  String parentInterface) {
  42         LOG.debug("Removing interface-state information for interface: {} {}", interfaceName, isNodePresent);
  43         List<ListenableFuture<Void>> futures = new ArrayList<>();
  44         WriteTransaction defaultOperationalShardTransaction = dataBroker.newWriteOnlyTransaction();
  45
  46         //VM Migration: Use old nodeConnectorId to delete the interface entry
  47         NodeConnectorId nodeConnectorId = nodeConnectorIdOld != null && !nodeConnectorIdNew.equals(nodeConnectorIdOld) ?
  48                 nodeConnectorIdOld : nodeConnectorIdNew;
  49         // delete the port entry from interface operational DS
  50         BigInteger dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
  51
  52         //VM Migration: Update the interface state to unknown only if remove event received for same switch
  53         if(!isNodePresent && nodeConnectorIdNew.equals(nodeConnectorIdOld)){
  54             //Remove event is because of connection lost between controller and switch, or switch shutdown.
  55             // Hence, dont remove the interface but set the status as "unknown"
  56             OvsInterfaceStateUpdateHelper.updateInterfaceStateOnNodeRemove(interfaceName, fcNodeConnectorOld, dataBroker,
  57                     alivenessMonitorService, defaultOperationalShardTransaction);
  58         }else{
  59             InterfaceManagerCommonUtils.deleteStateEntry(interfaceName, defaultOperationalShardTransaction);
  60             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface =
  61                     InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceName, dataBroker);
  62
  63             if(iface != null) {
  64                 // If this interface is a tunnel interface, remove the tunnel ingress flow and stop lldp monitoring
  65                 if (InterfaceManagerCommonUtils.isTunnelInterface(iface)) {
  66                     InterfaceMetaUtils.removeLportTagInterfaceMap(idManager, defaultOperationalShardTransaction, interfaceName);
  67                     handleTunnelMonitoringRemoval(alivenessMonitorService, mdsalApiManager, dataBroker, dpId,
  68                             iface.getName(), iface.getAugmentation(IfTunnel.class), defaultOperationalShardTransaction,
  69                             nodeConnectorId, futures);
  70                     return futures;
  71                 }
  72             }
  73             // remove ingress flow only for northbound configured interfaces
  74             // skip this check for non-unique ports(Ex: br-int,br-ex)
  75             if(iface != null || (iface == null && !interfaceName.contains(fcNodeConnectorOld.getName()))) {
  76                 FlowBasedServicesUtils.removeIngressFlow(interfaceName, dpId, dataBroker, futures);
  77             }
  78
  79             // Delete the Vpn Interface from DpnToInterface Op DS.
  80             InterfaceManagerCommonUtils.deleteDpnToInterface(dataBroker, dpId, interfaceName, defaultOperationalShardTransaction);
  81         }
  82         futures.add(defaultOperationalShardTransaction.submit());
  83         return futures;
  84     }
  85
  86     public static void handleTunnelMonitoringRemoval(AlivenessMonitorService alivenessMonitorService, IMdsalApiManager mdsalApiManager,
  87                                                      DataBroker dataBroker, BigInteger dpId, String interfaceName,
  88                                                      IfTunnel ifTunnel, WriteTransaction transaction,
  89                                                      NodeConnectorId nodeConnectorId, List<ListenableFuture<Void>> futures){
  90         long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
  91         InterfaceManagerCommonUtils.makeTunnelIngressFlow(futures, mdsalApiManager, ifTunnel, dpId, portNo, interfaceName, -1,
  92                 NwConstants.DEL_FLOW);
  93         futures.add(transaction.submit());
  94         AlivenessMonitorUtils.stopLLDPMonitoring(alivenessMonitorService, dataBroker, ifTunnel, interfaceName);
  95     }
  96 }