vpnservice/aclservice/impl/src/main/java/org/opendaylight/netvirt/aclservice/listeners/AclInterfaceListener.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.aclservice.listeners;
   9
  10 import java.util.List;
  11 import javax.annotation.PostConstruct;
  12 import javax.inject.Inject;
  13 import javax.inject.Singleton;
  14 import org.opendaylight.controller.md.sal.binding.api.ClusteredDataTreeChangeListener;
  15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.genius.datastoreutils.AsyncDataTreeChangeListenerBase;
  18 import org.opendaylight.netvirt.aclservice.api.AclServiceManager;
  19 import org.opendaylight.netvirt.aclservice.api.utils.AclInterface;
  20 import org.opendaylight.netvirt.aclservice.api.utils.AclInterfaceCacheUtil;
  21 import org.opendaylight.netvirt.aclservice.utils.AclClusterUtil;
  22 import org.opendaylight.netvirt.aclservice.utils.AclDataUtil;
  23 import org.opendaylight.netvirt.aclservice.utils.AclServiceUtils;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.aclservice.rev160608.InterfaceAcl;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 @Singleton
  33 public class AclInterfaceListener extends AsyncDataTreeChangeListenerBase<Interface, AclInterfaceListener>
  34         implements ClusteredDataTreeChangeListener<Interface> {
  35     private static final Logger LOG = LoggerFactory.getLogger(AclInterfaceListener.class);
  36
  37     private final AclServiceManager aclServiceManager;
  38     private final AclClusterUtil aclClusterUtil;
  39     private final DataBroker dataBroker;
  40     private final AclDataUtil aclDataUtil;
  41
  42     @Inject
  43     public AclInterfaceListener(AclServiceManager aclServiceManager, AclClusterUtil aclClusterUtil,
  44             DataBroker dataBroker, AclDataUtil aclDataUtil) {
  45         super(Interface.class, AclInterfaceListener.class);
  46         this.aclServiceManager = aclServiceManager;
  47         this.aclClusterUtil = aclClusterUtil;
  48         this.dataBroker = dataBroker;
  49         this.aclDataUtil = aclDataUtil;
  50     }
  51
  52     @Override
  53     @PostConstruct
  54     public void init() {
  55         LOG.info("{} start", getClass().getSimpleName());
  56         registerListener(LogicalDatastoreType.CONFIGURATION, dataBroker);
  57     }
  58
  59     @Override
  60     protected InstanceIdentifier<Interface> getWildCardPath() {
  61         return InstanceIdentifier
  62                 .create(Interfaces.class)
  63                 .child(Interface.class);
  64     }
  65
  66     @Override
  67     protected void remove(InstanceIdentifier<Interface> key, Interface port) {
  68         AclInterfaceCacheUtil.removeAclInterfaceFromCache(port.getName());
  69     }
  70
  71     @Override
  72     protected void update(InstanceIdentifier<Interface> key, Interface portBefore, Interface portAfter) {
  73
  74         InterfaceAcl aclInPortAfter = portAfter.getAugmentation(InterfaceAcl.class);
  75         InterfaceAcl aclInPortBefore = portBefore.getAugmentation(InterfaceAcl.class);
  76         if (aclInPortAfter != null && aclInPortAfter.isPortSecurityEnabled()
  77                 || aclInPortBefore != null && aclInPortBefore.isPortSecurityEnabled()) {
  78             String interfaceId = portAfter.getName();
  79             AclInterface aclInterface = null;
  80             if (aclInPortBefore == null) {
  81                 aclInterface = addAclInterfaceToCache(interfaceId, aclInPortAfter);
  82             } else {
  83                 aclInterface = updateAclInterfaceInCache(interfaceId, aclInPortAfter);
  84             }
  85             AclInterface oldAclInterface = getOldAclInterfaceObject(aclInterface, aclInPortBefore);
  86             List<Uuid> addedAclList = AclServiceUtils.getUpdatedAclList(aclInterface.getSecurityGroups(),
  87                     oldAclInterface.getSecurityGroups());
  88             List<Uuid> deletedAclList = AclServiceUtils.getUpdatedAclList(oldAclInterface.getSecurityGroups(),
  89                     aclInterface.getSecurityGroups());
  90             if (addedAclList != null && !addedAclList.isEmpty()) {
  91                 aclDataUtil.addAclInterfaceMap(addedAclList, aclInterface);
  92             }
  93             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state
  94                     .Interface interfaceState = AclServiceUtils.getInterfaceStateFromOperDS(
  95                     dataBroker, portAfter.getName());
  96             if (aclClusterUtil.isEntityOwner() && interfaceState != null && interfaceState.getOperStatus()
  97                     .equals(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508
  98                             .interfaces.state.Interface.OperStatus.Up)) {
  99                 aclServiceManager.notify(aclInterface, oldAclInterface, AclServiceManager.Action.UPDATE);
 100             }
 101             if (deletedAclList != null && !deletedAclList.isEmpty()) {
 102                 aclDataUtil.removeAclInterfaceMap(deletedAclList, aclInterface);
 103             }
 104         }
 105     }
 106
 107     private AclInterface updateAclInterfaceInCache(String interfaceId, InterfaceAcl aclInPortAfter) {
 108         AclInterface aclInterface = AclInterfaceCacheUtil.getAclInterfaceFromCache(interfaceId);
 109         if (aclInterface != null) {
 110             boolean portSecurityEnabled = aclInPortAfter.isPortSecurityEnabled();
 111             aclInterface.setPortSecurityEnabled(portSecurityEnabled);
 112             if (portSecurityEnabled) {
 113                 aclInterface.setSecurityGroups(aclInPortAfter.getSecurityGroups());
 114                 aclInterface.setAllowedAddressPairs(aclInPortAfter.getAllowedAddressPairs());
 115             }
 116         } else {
 117             // Control should not come here
 118             LOG.error("Unable to find Acl Interface details for {}", interfaceId);
 119         }
 120         return aclInterface;
 121     }
 122
 123     private AclInterface getOldAclInterfaceObject(AclInterface aclInterface, InterfaceAcl aclInPortBefore) {
 124         AclInterface oldAclInterface = new AclInterface();
 125         if (aclInPortBefore == null) {
 126             oldAclInterface.setPortSecurityEnabled(false);
 127         } else {
 128             oldAclInterface.setInterfaceId(aclInterface.getInterfaceId());
 129             oldAclInterface.setDpId(aclInterface.getDpId());
 130             oldAclInterface.setLPortTag(aclInterface.getLPortTag());
 131
 132             oldAclInterface.setPortSecurityEnabled(aclInPortBefore.isPortSecurityEnabled());
 133             oldAclInterface.setAllowedAddressPairs(aclInPortBefore.getAllowedAddressPairs());
 134             oldAclInterface.setSecurityGroups(aclInPortBefore.getSecurityGroups());
 135         }
 136         return oldAclInterface;
 137     }
 138
 139     @Override
 140     protected void add(InstanceIdentifier<Interface> key, Interface port) {
 141         InterfaceAcl aclInPort = port.getAugmentation(InterfaceAcl.class);
 142         if (aclInPort != null && aclInPort.isPortSecurityEnabled()) {
 143             addAclInterfaceToCache(port.getName(), aclInPort);
 144         }
 145     }
 146
 147     private AclInterface addAclInterfaceToCache(String interfaceId, InterfaceAcl aclInPort) {
 148         AclInterface aclInterface = new AclInterface();
 149         aclInterface.setInterfaceId(interfaceId);
 150         aclInterface.setPortSecurityEnabled(aclInPort.isPortSecurityEnabled());
 151         aclInterface.setSecurityGroups(aclInPort.getSecurityGroups());
 152         aclInterface.setAllowedAddressPairs(aclInPort.getAllowedAddressPairs());
 153         AclInterfaceCacheUtil.addAclInterfaceToCache(interfaceId, aclInterface);
 154         return aclInterface;
 155     }
 156
 157     @Override
 158     protected AclInterfaceListener getDataTreeChangeListener() {
 159         return this;
 160     }
 161 }