interfacemgr/interfacemgr-impl/src/main/java/org/opendaylight/vpnservice/interfacemgr/renderer/ovs/confighelpers/OvsInterfaceConfigUpdateHelper.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.vpnservice.interfacemgr.commons.AlivenessMonitorUtils;
  14 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceManagerCommonUtils;
  15 import org.opendaylight.vpnservice.interfacemgr.commons.InterfaceMetaUtils;
  16 import org.opendaylight.vpnservice.interfacemgr.renderer.ovs.utilities.SouthboundUtils;
  17 import org.opendaylight.vpnservice.mdsalutil.interfaces.IMdsalApiManager;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface.OperStatus;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.alivenessmonitor.rev150629.AlivenessMonitorService;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.idmanager.rev150403.IdManagerService;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info.InterfaceParentEntry;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info.InterfaceParentEntryKey;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007._interface.child.info._interface.parent.entry.InterfaceChildEntry;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.meta.rev151007.bridge.ref.info.BridgeRefEntry;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfL2vlan;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.IfTunnel;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.vpnservice.interfacemgr.rev150331.ParentRefs;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import java.util.ArrayList;
  33 import java.util.List;
  34
  35 public class OvsInterfaceConfigUpdateHelper{
  36     private static final Logger LOG = LoggerFactory.getLogger(OvsInterfaceConfigUpdateHelper.class);
  37
  38     public static List<ListenableFuture<Void>> updateConfiguration(DataBroker dataBroker,  AlivenessMonitorService alivenessMonitorService,
  39                                                                    IdManagerService idManager, IMdsalApiManager mdsalApiManager,
  40                                                                    Interface interfaceNew, Interface interfaceOld) {
  41         List<ListenableFuture<Void>> futures = new ArrayList<>();
  42
  43         // If any of the port attributes are modified, treat it as a delete and recreate scenario
  44         if(portAttributesModified(interfaceOld, interfaceNew)) {
  45             futures.addAll(OvsInterfaceConfigRemoveHelper.removeConfiguration(dataBroker, alivenessMonitorService, interfaceOld, idManager,
  46                     mdsalApiManager, interfaceOld.getAugmentation(ParentRefs.class)));
  47             futures.addAll(OvsInterfaceConfigAddHelper.addConfiguration(dataBroker,
  48                     interfaceNew.getAugmentation(ParentRefs.class), interfaceNew, idManager,alivenessMonitorService,mdsalApiManager));
  49             return futures;
  50         }
  51
  52         // If there is no operational state entry for the interface, treat it as create
  53         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
  54                 InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceNew.getName(), dataBroker);
  55         if (ifState == null) {
  56             futures.addAll(OvsInterfaceConfigAddHelper.addConfiguration(dataBroker,
  57                     interfaceNew.getAugmentation(ParentRefs.class), interfaceNew, idManager, alivenessMonitorService, mdsalApiManager));
  58             return futures;
  59         }
  60
  61         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  62         if(TunnelMonitoringAttributesModified(interfaceOld, interfaceNew)){
  63             handleTunnelMonitorUpdates(futures, transaction, alivenessMonitorService, interfaceNew,
  64                     interfaceOld, dataBroker);
  65             return futures;
  66         }
  67
  68         if (interfaceNew.isEnabled() != interfaceOld.isEnabled()) {
  69             handleInterfaceAdminStateUpdates(futures, transaction, interfaceNew, dataBroker, ifState);
  70         }
  71
  72         futures.add(transaction.submit());
  73         return futures;
  74     }
  75
  76     private static boolean portAttributesModified(Interface interfaceOld, Interface interfaceNew) {
  77         ParentRefs parentRefsOld = interfaceOld.getAugmentation(ParentRefs.class);
  78         ParentRefs parentRefsNew = interfaceNew.getAugmentation(ParentRefs.class);
  79         if (checkAugmentations(parentRefsOld, parentRefsNew)) {
  80             return true;
  81         }
  82
  83         IfL2vlan ifL2vlanOld = interfaceOld.getAugmentation(IfL2vlan.class);
  84         IfL2vlan ifL2vlanNew = interfaceNew.getAugmentation(IfL2vlan.class);
  85         if (checkAugmentations(ifL2vlanOld, ifL2vlanNew)) {
  86             return true;
  87         }
  88
  89         IfTunnel ifTunnelOld = interfaceOld.getAugmentation(IfTunnel.class);
  90         IfTunnel ifTunnelNew = interfaceNew.getAugmentation(IfTunnel.class);
  91         if (checkAugmentations(ifTunnelOld, ifTunnelNew)) {
  92             if(!ifTunnelNew.getTunnelDestination().equals(ifTunnelOld.getTunnelDestination()) ||
  93                     !ifTunnelNew.getTunnelSource().equals(ifTunnelOld.getTunnelSource()) ||
  94                     !ifTunnelNew.getTunnelGateway().equals(ifTunnelOld.getTunnelGateway())) {
  95                 return true;
  96             }
  97         }
  98
  99         return false;
 100     }
 101
 102     private static boolean TunnelMonitoringAttributesModified(Interface interfaceOld, Interface interfaceNew) {
 103         IfTunnel ifTunnelOld = interfaceOld.getAugmentation(IfTunnel.class);
 104         IfTunnel ifTunnelNew = interfaceNew.getAugmentation(IfTunnel.class);
 105         if (checkAugmentations(ifTunnelOld, ifTunnelNew)) {
 106             return true;
 107         }
 108         return false;
 109     }
 110
 111     /*
 112      * if the tunnel monitoring attributes have changed, handle it based on the tunnel type.
 113      * As of now internal vxlan tunnels use LLDP monitoring and external tunnels use BFD monitoring.
 114      */
 115     private static void handleTunnelMonitorUpdates(List<ListenableFuture<Void>> futures, WriteTransaction transaction,
 116                                                    AlivenessMonitorService alivenessMonitorService,
 117                                                    Interface interfaceNew, Interface interfaceOld, DataBroker dataBroker){
 118         LOG.debug("tunnel monitoring attributes modified for interface {}", interfaceNew.getName());
 119         // update termination point on switch, if switch is connected
 120         BridgeRefEntry bridgeRefEntry =
 121                 InterfaceMetaUtils.getBridgeReferenceForInterface(interfaceNew, dataBroker);
 122         if(InterfaceMetaUtils.bridgeExists(bridgeRefEntry, dataBroker)) {
 123             SouthboundUtils.updateBfdParamtersForTerminationPoint(bridgeRefEntry.getBridgeReference().getValue(),
 124                     interfaceNew.getAugmentation(IfTunnel.class),
 125                     interfaceNew.getName(), transaction);
 126         }
 127
 128         // stop tunnel monitoring if admin state is disabled for an internal vxlan trunk interface
 129         if(interfaceOld.isEnabled() && !interfaceNew.isEnabled()) {
 130             AlivenessMonitorUtils.stopLLDPMonitoring(alivenessMonitorService, dataBroker, interfaceNew);
 131         }else{
 132             AlivenessMonitorUtils.handleTunnelMonitorUpdates(alivenessMonitorService, dataBroker, interfaceOld, interfaceNew);
 133         }
 134         futures.add(transaction.submit());
 135     }
 136
 137     private static void handleInterfaceAdminStateUpdates(List<ListenableFuture<Void>> futures, WriteTransaction transaction,
 138                                                          Interface interfaceNew, DataBroker dataBroker,
 139                                                          org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState){
 140         OperStatus operStatus = InterfaceManagerCommonUtils.updateStateEntry(interfaceNew, dataBroker, transaction, ifState);
 141
 142         IfL2vlan ifL2vlan = interfaceNew.getAugmentation(IfL2vlan.class);
 143         if (ifL2vlan == null || (IfL2vlan.L2vlanMode.Trunk != ifL2vlan.getL2vlanMode() && IfL2vlan.L2vlanMode.Transparent != ifL2vlan.getL2vlanMode())) {
 144             futures.add(transaction.submit());
 145             return;
 146         }
 147
 148         InterfaceParentEntryKey interfaceParentEntryKey = new InterfaceParentEntryKey(interfaceNew.getName());
 149         InterfaceParentEntry interfaceParentEntry =
 150                 InterfaceMetaUtils.getInterfaceParentEntryFromConfigDS(interfaceParentEntryKey, dataBroker);
 151         if (interfaceParentEntry == null || interfaceParentEntry.getInterfaceChildEntry() == null) {
 152             futures.add(transaction.submit());
 153             return;
 154         }
 155
 156         for (InterfaceChildEntry interfaceChildEntry : interfaceParentEntry.getInterfaceChildEntry()) {
 157             InterfaceManagerCommonUtils.updateOperStatus(interfaceChildEntry.getChildInterface(), operStatus, transaction);
 158         }
 159     }
 160
 161     private static<T> boolean checkAugmentations(T oldAug, T newAug) {
 162         if ((oldAug != null && newAug == null) ||
 163                 (oldAug == null && newAug != null)) {
 164             return true;
 165         }
 166
 167         if (newAug != null && oldAug != null && !newAug.equals(oldAug)) {
 168             return true;
 169         }
 170
 171         return false;
 172     }
 173
 174 }