interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/renderer/ovs/confighelpers/OvsInterfaceConfigRemoveHelper.java

   1 /*
   2  * Copyright (c) 2015 - 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.vpnservice.interfacemgr.renderer.ovs.confighelpers;
   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.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.idmanager.IdManager;
  15 import org.opendaylight.vpnservice.interfacemgr.IfmUtil;
  16 import org.opendaylight.vpnservice.interfacemgr.commons.AlivenessMonitorUtils;
  17 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
  18 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceMetaUtils;
  19 import org.opendaylight.vpnservice.interfacemgr.renderer.ovs.utilities.SouthboundUtils;
  20 import org.opendaylight.vpnservice.interfacemgr.servicebindings.flowbased.utilities.FlowBasedServicesUtils;
  21 import org.opendaylight.vpnservice.mdsalutil.NwConstants;
  22 import org.opendaylight.vpnservice.mdsalutil.interfaces.IMdsalApiManager;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnector;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.alivenessmonitor.rev150629.AlivenessMonitorService;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.alivenessmonitor.rev150629.MonitorStopInput;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.alivenessmonitor.rev150629.MonitorStopInputBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.idmanager.rev150403.IdManagerService;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info.InterfaceParentEntry;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info.InterfaceParentEntryKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info._interface.parent.entry.InterfaceChildEntry;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.BridgeEntry;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.BridgeEntryKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.bridge.entry.BridgeInterfaceEntry;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge._interface.info.bridge.entry.BridgeInterfaceEntryKey;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge.ref.info.BridgeRefEntry;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge.ref.info.BridgeRefEntryKey;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL2vlan;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfTunnel;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.ParentRefs;
  46 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  47 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  48 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  49 import org.slf4j.Logger;
  50 import org.slf4j.LoggerFactory;
  51
  52 import java.math.BigInteger;
  53 import java.util.ArrayList;
  54 import java.util.List;
  55
  56 public class OvsInterfaceConfigRemoveHelper {
  57     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceConfigRemoveHelper.class);
  58
  59     public static List<ListenableFuture<Void>> removeConfiguration(DataBroker dataBroker, AlivenessMonitorService alivenessMonitorService,
  60                                                                    Interface interfaceOld,
  61                                                                    IdManagerService idManager,
  62                                                                    IMdsalApiManager mdsalApiManager,
  63                                                                    ParentRefs parentRefs) {
  64         List<ListenableFuture<Void>> futures = new ArrayList<>();
  65         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
  66
  67         IfTunnel ifTunnel = interfaceOld.getAugmentation(IfTunnel.class);
  68         if (ifTunnel != null) {
  69             removeTunnelConfiguration(alivenessMonitorService, parentRefs, dataBroker, interfaceOld,
  70                     idManager, mdsalApiManager, futures);
  71         }else {
  72             removeVlanConfiguration(dataBroker, parentRefs, interfaceOld, t);
  73             futures.add(t.submit());
  74         }
  75         return futures;
  76     }
  77
  78     private static void removeVlanConfiguration(DataBroker dataBroker, ParentRefs parentRefs, Interface interfaceOld, WriteTransaction transaction) {
  79         LOG.debug("removing vlan configuration for {}",interfaceOld.getName());
  80         IfL2vlan ifL2vlan = interfaceOld.getAugmentation(IfL2vlan.class);
  81         if (ifL2vlan == null || (IfL2vlan.L2vlanMode.Trunk != ifL2vlan.getL2vlanMode() && IfL2vlan.L2vlanMode.Transparent != ifL2vlan.getL2vlanMode())) {
  82             return;
  83         }
  84         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
  85                 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceOld.getName(), dataBroker);
  86         if (ifState == null) {
  87             LOG.debug("could not fetch interface state corresponding to {}",interfaceOld.getName());
  88             return;
  89         }
  90
  91         InterfaceManagerCommonUtils.deleteStateEntry(interfaceOld.getName(), transaction);
  92
  93         BigInteger dpId = IfmUtil.getDpnFromInterface(ifState);
  94         FlowBasedServicesUtils.removeIngressFlow(interfaceOld.getName(), dpId, transaction);
  95         InterfaceManagerCommonUtils.deleteParentInterfaceEntry(transaction, parentRefs.getParentInterface());
  96         // For Vlan-Trunk Interface, remove the trunk-member operstates as well...
  97
  98         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(interfaceOld.getName());
  99         InterfaceParentEntry interfaceParentEntry =
 100                 InterfaceMetaUtils.getInterfaceParentEntryFromConfigDS(interfaceParentEntryKey, dataBroker);
 101         if (interfaceParentEntry == null || interfaceParentEntry.getInterfaceChildEntry() == null) {
 102             return;
 103         }
 104
 105         //FIXME: If the no. of child entries exceeds 100, perform txn updates in batches of 100.
 106         for (InterfaceChildEntry interfaceChildEntry : interfaceParentEntry.getInterfaceChildEntry()) {
 107             LOG.debug("removing interface state for  vlan trunk member {}",interfaceChildEntry.getChildInterface());
 108             InterfaceManagerCommonUtils.deleteStateEntry(interfaceChildEntry.getChildInterface(), transaction);
 109             FlowBasedServicesUtils.removeIngressFlow(interfaceChildEntry.getChildInterface(), dpId, transaction);
 110         }
 111     }
 112
 113     private static void removeTunnelConfiguration(AlivenessMonitorService alivenessMonitorService, ParentRefs parentRefs,
 114                                                   DataBroker dataBroker, Interface interfaceOld,
 115                                                   IdManagerService idManager, IMdsalApiManager mdsalApiManager,
 116                                                   List<ListenableFuture<Void>> futures) {
 117         LOG.debug("removing tunnel configuration for {}",interfaceOld.getName());
 118         WriteTransaction t = dataBroker.newWriteOnlyTransaction();
 119         BigInteger dpId = null;
 120         if (parentRefs != null) {
 121             dpId = parentRefs.getDatapathNodeIdentifier();
 122         }
 123
 124         if (dpId == null) {
 125             return;
 126         }
 127
 128         BridgeRefEntryKey bridgeRefEntryKey = new BridgeRefEntryKey(dpId);
 129         InstanceIdentifier<BridgeRefEntry> bridgeRefEntryIid =
 130                 InterfaceMetaUtils.getBridgeRefEntryIdentifier(bridgeRefEntryKey);
 131         BridgeRefEntry bridgeRefEntry =
 132                 InterfaceMetaUtils.getBridgeRefEntryFromOperDS(bridgeRefEntryIid, dataBroker);
 133
 134         if (bridgeRefEntry != null) {
 135             LOG.debug("removing termination point for {}",interfaceOld.getName());
 136             InstanceIdentifier<?> bridgeIid = bridgeRefEntry.getBridgeReference().getValue();
 137             InstanceIdentifier<TerminationPoint> tpIid = SouthboundUtils.createTerminationPointInstanceIdentifier(
 138                     InstanceIdentifier.keyOf(bridgeIid.firstIdentifierOf(Node.class)), interfaceOld.getName());
 139             t.delete(LogicalDatastoreType.CONFIGURATION, tpIid);
 140
 141             // delete tunnel ingress flow
 142             LOG.debug("removing tunnel ingress flow for {}",interfaceOld.getName());
 143             NodeConnectorId ncId = IfmUtil.getNodeConnectorIdFromInterface(interfaceOld, dataBroker);
 144             long portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(ncId));
 145             InterfaceManagerCommonUtils.makeTunnelIngressFlow(futures, mdsalApiManager,
 146                     interfaceOld.getAugmentation(IfTunnel.class),
 147                     dpId, portNo, interfaceOld, -1,
 148                     NwConstants.DEL_FLOW);
 149         }
 150
 151         BridgeEntryKey bridgeEntryKey = new BridgeEntryKey(dpId);
 152         InstanceIdentifier<BridgeEntry> bridgeEntryIid = InterfaceMetaUtils.getBridgeEntryIdentifier(bridgeEntryKey);
 153         BridgeEntry bridgeEntry = InterfaceMetaUtils.getBridgeEntryFromConfigDS(bridgeEntryIid, dataBroker);
 154         if (bridgeEntry == null) {
 155             return;
 156         }
 157
 158         List<BridgeInterfaceEntry> bridgeInterfaceEntries = bridgeEntry.getBridgeInterfaceEntry();
 159         if (bridgeInterfaceEntries == null) {
 160             return;
 161         }
 162
 163         if (bridgeInterfaceEntries.size() <= 1) {
 164             t.delete(LogicalDatastoreType.CONFIGURATION, bridgeEntryIid);
 165         } else {
 166             BridgeInterfaceEntryKey bridgeInterfaceEntryKey =
 167                     new BridgeInterfaceEntryKey(interfaceOld.getName());
 168             InstanceIdentifier<BridgeInterfaceEntry> bridgeInterfaceEntryIid =
 169                     InterfaceMetaUtils.getBridgeInterfaceEntryIdentifier(bridgeEntryKey,
 170                             bridgeInterfaceEntryKey);
 171             t.delete(LogicalDatastoreType.CONFIGURATION, bridgeInterfaceEntryIid);
 172         }
 173         futures.add(t.submit());
 174         // stop LLDP monitoring for the tunnel interface
 175         AlivenessMonitorUtils.stopLLDPMonitoring(alivenessMonitorService, dataBroker, interfaceOld);
 176     }
 177 }