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.PostConstruct;
  13 import javax.inject.Inject;
  14 import javax.inject.Singleton;
  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.AsyncClusteredDataTreeChangeListenerBase;
  18 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  19 import org.opendaylight.genius.mdsalutil.NwConstants;
  20 import org.opendaylight.genius.utils.SystemPropertyReader;
  21 import org.opendaylight.infrautils.jobcoordinator.JobCoordinator;
  22 import org.opendaylight.netvirt.ipv6service.utils.Ipv6ServiceConstants;
  23 import org.opendaylight.netvirt.ipv6service.utils.Ipv6ServiceUtils;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev170119.L2vlan;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.common.Uint64;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 @Singleton
  35 public class Ipv6ServiceInterfaceEventListener
  36         extends AsyncClusteredDataTreeChangeListenerBase<Interface, Ipv6ServiceInterfaceEventListener> {
  37     private static final Logger LOG = LoggerFactory.getLogger(Ipv6ServiceInterfaceEventListener.class);
  38     private final DataBroker dataBroker;
  39     private final IfMgr ifMgr;
  40     private final Ipv6ServiceUtils ipv6ServiceUtils;
  41     private final JobCoordinator jobCoordinator;
  42     private final Ipv6ServiceEosHandler ipv6ServiceEosHandler;
  43
  44     /**
  45      * Intialize the member variables.
  46      * @param broker the data broker instance.
  47      */
  48     @Inject
  49     public Ipv6ServiceInterfaceEventListener(DataBroker broker, IfMgr ifMgr, Ipv6ServiceUtils ipv6ServiceUtils,
  50             final JobCoordinator jobCoordinator, Ipv6ServiceEosHandler ipv6ServiceEosHandler) {
  51         super(Interface.class, Ipv6ServiceInterfaceEventListener.class);
  52         this.dataBroker = broker;
  53         this.ifMgr = ifMgr;
  54         this.ipv6ServiceUtils = ipv6ServiceUtils;
  55         this.jobCoordinator = jobCoordinator;
  56         this.ipv6ServiceEosHandler = ipv6ServiceEosHandler;
  57     }
  58
  59     @PostConstruct
  60     public void init() {
  61         LOG.info("{} init", getClass().getSimpleName());
  62         registerListener(LogicalDatastoreType.OPERATIONAL, dataBroker);
  63     }
  64
  65     @Override
  66     protected InstanceIdentifier<Interface> getWildCardPath() {
  67         return InstanceIdentifier.create(InterfacesState.class).child(Interface.class);
  68     }
  69
  70     @Override
  71     protected void remove(InstanceIdentifier<Interface> key, Interface del) {
  72         LOG.debug("Port removed {}, {}", key, del);
  73         if (!L2vlan.class.equals(del.getType())) {
  74             return;
  75         }
  76
  77         // In ipv6service, we are only interested in the notification for NeutronPort, so we skip other notifications
  78         List<String> ofportIds = del.getLowerLayerIf();
  79         if (ofportIds == null || ofportIds.isEmpty() || !isNeutronPort(del.getName())) {
  80             return;
  81         }
  82
  83         if (!ipv6ServiceEosHandler.isClusterOwner()) {
  84             LOG.trace("Not a cluster Owner, skipping further IPv6 processing on this node.");
  85             return;
  86         }
  87         Uuid portId = new Uuid(del.getName());
  88         VirtualPort port = ifMgr.obtainV6Interface(portId);
  89         if (port == null) {
  90             LOG.info("Port {} does not include IPv6Address, skipping.", portId);
  91             return;
  92         }
  93
  94         if (port.getServiceBindingStatus()) {
  95             jobCoordinator.enqueueJob("IPv6-" + String.valueOf(portId), () -> {
  96                 // Unbind Service
  97                 ipv6ServiceUtils.unbindIpv6Service(portId.getValue());
  98                 port.setServiceBindingStatus(false);
  99                 return Collections.emptyList();
 100             }, SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 101         }
 102
 103         VirtualPort routerPort = ifMgr.getRouterV6InterfaceForNetwork(port.getNetworkID());
 104         ifMgr.handleInterfaceStateEvent(port, ipv6ServiceUtils.getDpIdFromInterfaceState(del), routerPort,
 105                 Ipv6ServiceConstants.DEL_FLOW);
 106     }
 107
 108     @Override
 109     protected void update(InstanceIdentifier<Interface> key, Interface before, Interface after) {
 110         if (before.getType() == null && L2vlan.class.equals(after.getType())) {
 111             add(key, after);
 112         }
 113     }
 114
 115     private boolean isNeutronPort(String name) {
 116         try {
 117             new Uuid(name);
 118             return true;
 119         } catch (IllegalArgumentException e) {
 120             LOG.debug("Port {} is not a Neutron Port, skipping.", name);
 121         }
 122         return false;
 123     }
 124
 125     @Override
 126     protected void add(InstanceIdentifier<Interface> key, Interface add) {
 127         List<String> ofportIds = add.getLowerLayerIf();
 128
 129         if (!L2vlan.class.equals(add.getType())) {
 130             return;
 131         }
 132
 133         // When a port is created, we receive multiple notifications.
 134         // In ipv6service, we are only interested in the notification for NeutronPort, so we skip other notifications
 135         if (ofportIds == null || ofportIds.isEmpty() || !isNeutronPort(add.getName())) {
 136             return;
 137         }
 138
 139         org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface iface;
 140         iface = ipv6ServiceUtils.getInterface(add.getName());
 141         if (null != iface) {
 142             LOG.debug("Port {} is a Neutron port", iface.getName());
 143             NodeConnectorId nodeConnectorId = new NodeConnectorId(ofportIds.get(0));
 144             Uint64 dpId = Ipv6ServiceUtils.getDpnIdFromNodeConnectorId(nodeConnectorId);
 145
 146             if (!dpId.equals(Ipv6ServiceConstants.INVALID_DPID)) {
 147                 Uuid portId = new Uuid(iface.getName());
 148                 VirtualPort port = ifMgr.obtainV6Interface(portId);
 149                 if (port == null) {
 150                     LOG.info("Port {} does not include IPv6Address, skipping.", portId);
 151                     return;
 152                 }
 153
 154                 Long ofPort = MDSALUtil.getOfPortNumberFromPortName(nodeConnectorId);
 155                 ifMgr.updateDpnInfo(portId, dpId, ofPort);
 156
 157                 if (!ipv6ServiceEosHandler.isClusterOwner()) {
 158                     LOG.trace("Not a cluster Owner, skipping further IPv6 processing on this node.");
 159                     return;
 160                 }
 161
 162                 VirtualPort routerPort = ifMgr.getRouterV6InterfaceForNetwork(port.getNetworkID());
 163                 if (routerPort == null) {
 164                     LOG.info("Port {} is not associated to a Router, skipping.", portId);
 165                     return;
 166                 }
 167                 ifMgr.handleInterfaceStateEvent(port, dpId, routerPort, Ipv6ServiceConstants.ADD_FLOW);
 168
 169                 if (!port.getServiceBindingStatus()) {
 170                     jobCoordinator.enqueueJob("IPv6-" + String.valueOf(portId), () -> {
 171                         // Bind Service
 172                         Long elanTag = ifMgr.getNetworkElanTag(routerPort.getNetworkID());
 173                         ipv6ServiceUtils.bindIpv6Service(portId.getValue(), elanTag, NwConstants.IPV6_TABLE);
 174                         port.setServiceBindingStatus(true);
 175                         return Collections.emptyList();
 176                     }, SystemPropertyReader.getDataStoreJobCoordinatorMaxRetries());
 177                 }
 178             }
 179         }
 180     }
 181
 182     @Override
 183     protected Ipv6ServiceInterfaceEventListener getDataTreeChangeListener() {
 184         return Ipv6ServiceInterfaceEventListener.this;
 185     }
 186 }