ipv6service/impl/src/main/java/org/opendaylight/netvirt/ipv6service/Ipv6ServiceInterfaceEventListener.java

   1 /*
   2  * Copyright (c) 2016, 2017 Red Hat, Inc. 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.ipv6service;
   9
  10 import java.util.Collections;
  11 import java.util.List;
  12 import javax.annotation.PreDestroy;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  15 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  16 import org.opendaylight.genius.mdsalutil.NwConstants;
  17 import org.opendaylight.genius.utils.SystemPropertyReader;
  18 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  19 import org.opendaylight.infrautils.utils.concurrent.Executors;
  20 import org.opendaylight.mdsal.binding.api.DataBroker;
  21 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  22 import org.opendaylight.netvirt.ipv6service.utils.Ipv6ServiceConstants;
  23 import org.opendaylight.netvirt.ipv6service.utils.Ipv6ServiceUtils;
  24 import org.opendaylight.serviceutils.tools.listener.AbstractClusteredAsyncDataTreeChangeListener;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev170119.L2vlan;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.opendaylight.yangtools.yang.common.Uint64;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 @Singleton
  36 public class Ipv6ServiceInterfaceEventListener
  37         extends AbstractClusteredAsyncDataTreeChangeListener<Interface> {
  38     private static final Logger LOG = LoggerFactory.getLogger(Ipv6ServiceInterfaceEventListener.class);
  39     private final DataBroker dataBroker;
  40     private final IfMgr ifMgr;
  41     private final Ipv6ServiceUtils ipv6ServiceUtils;
  42     private final JobCoordinator jobCoordinator;
  43     private final Ipv6ServiceEosHandler ipv6ServiceEosHandler;
  44
  45     /**
  46      * Intialize the member variables.
  47      * @param broker the data broker instance.
  48      */
  49     @Inject
  50     public Ipv6ServiceInterfaceEventListener(DataBroker broker, IfMgr ifMgr, Ipv6ServiceUtils ipv6ServiceUtils,
  51             final JobCoordinator jobCoordinator, Ipv6ServiceEosHandler ipv6ServiceEosHandler) {
  52         super(broker, LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(InterfacesState.class)
  53                         .child(Interface.class),
  54                 Executors.newListeningSingleThreadExecutor("Ipv6ServiceInterfaceEventListener", LOG));
  55         this.dataBroker = broker;
  56         this.ifMgr = ifMgr;
  57         this.ipv6ServiceUtils = ipv6ServiceUtils;
  58         this.jobCoordinator = jobCoordinator;
  59         this.ipv6ServiceEosHandler = ipv6ServiceEosHandler;
  60     }
  61
  62     public void init() {
  63         LOG.info("{} init", getClass().getSimpleName());
  64     }
  65
  66     @Override
  67     @PreDestroy
  68     public void close() {
  69         super.close();
  70         Executors.shutdownAndAwaitTermination(getExecutorService());
  71     }
  72
  73     @Override
  74     public void remove(InstanceIdentifier<Interface> key, Interface del) {
  75         LOG.debug("Port removed {}, {}", key, del);
  76         if (!L2vlan.class.equals(del.getType())) {
  77             return;
  78         }
  79
  80         // In ipv6service, we are only interested in the notification for NeutronPort, so we skip other notifications
  81         List<String> ofportIds = del.getLowerLayerIf();
  82         if (ofportIds == null || ofportIds.isEmpty() || !isNeutronPort(del.getName())) {
  83             return;
  84         }
  85
  86         if (!ipv6ServiceEosHandler.isClusterOwner()) {
  87             LOG.trace("Not a cluster Owner, skipping further IPv6 processing on this node.");
  88             return;
  89         }
  90         Uuid portId = new Uuid(del.getName());
  91         VirtualPort port = ifMgr.obtainV6Interface(portId);
  92         if (port == null) {
  93             LOG.info("Port {} does not include IPv6Address, skipping.", portId);
  94             return;
  95         }
  96
  97         if (port.getServiceBindingStatus()) {
  98             jobCoordinator.enqueueJob("IPv6-" + String.valueOf(portId), () -> {
  99                 // Unbind Service
 100                 ipv6ServiceUtils.unbindIpv6Service(portId.getValue());
 101                 port.setServiceBindingStatus(false);
 102                 return Collections.emptyList();
 103             }, SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 104         }
 105
 106         VirtualPort routerPort = ifMgr.getRouterV6InterfaceForNetwork(port.getNetworkID());
 107         ifMgr.handleInterfaceStateEvent(port, ipv6ServiceUtils.getDpIdFromInterfaceState(del), routerPort,
 108                 Ipv6ServiceConstants.DEL_FLOW);
 109     }
 110
 111     @Override
 112     public void update(InstanceIdentifier<Interface> key, Interface before, Interface after) {
 113         if (before.getType() == null && L2vlan.class.equals(after.getType())) {
 114             add(key, after);
 115         }
 116     }
 117
 118     private boolean isNeutronPort(String name) {
 119         try {
 120             new Uuid(name);
 121             return true;
 122         } catch (IllegalArgumentException e) {
 123             LOG.debug("Port {} is not a Neutron Port, skipping.", name);
 124         }
 125         return false;
 126     }
 127
 128     @Override
 129     public void add(InstanceIdentifier<Interface> key, Interface add) {
 130         List<String> ofportIds = add.getLowerLayerIf();
 131
 132         if (!L2vlan.class.equals(add.getType())) {
 133             return;
 134         }
 135
 136         // When a port is created, we receive multiple notifications.
 137         // In ipv6service, we are only interested in the notification for NeutronPort, so we skip other notifications
 138         if (ofportIds == null || ofportIds.isEmpty() || !isNeutronPort(add.getName())) {
 139             return;
 140         }
 141
 142         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface;
 143         iface = ipv6ServiceUtils.getInterface(add.getName());
 144         if (null != iface) {
 145             LOG.debug("Port {} is a Neutron port", iface.getName());
 146             NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
 147             Uint64 dpId = Ipv6ServiceUtils.getDpnIdFromNodeConnectorId(nodeConnectorId);
 148
 149             if (!dpId.equals(Ipv6ServiceConstants.INVALID_DPID)) {
 150                 Uuid portId = new Uuid(iface.getName());
 151                 VirtualPort port = ifMgr.obtainV6Interface(portId);
 152                 if (port == null) {
 153                     LOG.info("Port {} does not include IPv6Address, skipping.", portId);
 154                     return;
 155                 }
 156
 157                 Long ofPort = MDSALUtil.getOfPortNumberFromPortName(nodeConnectorId);
 158                 ifMgr.updateDpnInfo(portId, dpId, ofPort);
 159
 160                 if (!ipv6ServiceEosHandler.isClusterOwner()) {
 161                     LOG.trace("Not a cluster Owner, skipping further IPv6 processing on this node.");
 162                     return;
 163                 }
 164
 165                 VirtualPort routerPort = ifMgr.getRouterV6InterfaceForNetwork(port.getNetworkID());
 166                 if (routerPort == null) {
 167                     LOG.info("Port {} is not associated to a Router, skipping.", portId);
 168                     return;
 169                 }
 170                 ifMgr.handleInterfaceStateEvent(port, dpId, routerPort, Ipv6ServiceConstants.ADD_FLOW);
 171
 172                 if (!port.getServiceBindingStatus()) {
 173                     jobCoordinator.enqueueJob("IPv6-" + String.valueOf(portId), () -> {
 174                         // Bind Service
 175                         Long elanTag = ifMgr.getNetworkElanTag(routerPort.getNetworkID());
 176                         ipv6ServiceUtils.bindIpv6Service(portId.getValue(), elanTag, NwConstants.IPV6_TABLE);
 177                         port.setServiceBindingStatus(true);
 178                         return Collections.emptyList();
 179                     }, SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 180                 }
 181             }
 182         }
 183     }
 184 }