openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/SouthboundHandler.java

   1 /*
   2  * Copyright (C) 2013 Red Hat, Inc.
   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.ovsdb.openstack.netvirt;
   9
  10 import java.util.List;
  11
  12 import org.opendaylight.neutron.spi.NeutronNetwork;
  13 import org.opendaylight.ovsdb.openstack.netvirt.api.*;
  14 import org.opendaylight.ovsdb.openstack.netvirt.impl.NeutronL3Adapter;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  20 import org.opendaylight.yangtools.yang.binding.DataObject;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 /**
  25  * @author Madhu Venugopal
  26  * @author Brent Salisbury
  27  * @author Dave Tucker
  28  * @author Sam Hague (shague@redhat.com)
  29  */
  30 public class SouthboundHandler extends AbstractHandler
  31         implements NodeCacheListener, OvsdbInventoryListener {
  32     static final Logger logger = LoggerFactory.getLogger(SouthboundHandler.class);
  33
  34     // The implementation for each of these services is resolved by the OSGi Service Manager
  35     private volatile ConfigurationService configurationService;
  36     private volatile BridgeConfigurationManager bridgeConfigurationManager;
  37     private volatile TenantNetworkManager tenantNetworkManager;
  38     private volatile NetworkingProviderManager networkingProviderManager;
  39     private volatile OvsdbConnectionService connectionService;
  40     private volatile NeutronL3Adapter neutronL3Adapter;
  41     private volatile NodeCacheManager nodeCacheManager = null;
  42
  43     void start() {
  44         this.triggerUpdates();
  45     }
  46
  47     void init() {
  48         logger.info(">>>>>> init {}", this.getClass());
  49     }
  50
  51     private SouthboundEvent.Type ovsdbTypeToSouthboundEventType(OvsdbType ovsdbType) {
  52         SouthboundEvent.Type type = SouthboundEvent.Type.NODE;
  53
  54         switch (ovsdbType) {
  55             case NODE:
  56                 type = SouthboundEvent.Type.NODE;
  57                 break;
  58             case BRIDGE:
  59                 type = SouthboundEvent.Type.BRIDGE;
  60                 break;
  61             case PORT:
  62                 type = SouthboundEvent.Type.PORT;
  63                 break;
  64             case CONTROLLER:
  65                 type = SouthboundEvent.Type.CONTROLLER;
  66                 break;
  67             case OPENVSWITCH:
  68                 type = SouthboundEvent.Type.OPENVSWITCH;
  69                 break;
  70             default:
  71                 logger.warn("Invalid OvsdbType: {}", ovsdbType);
  72                 break;
  73         }
  74         return type;
  75     }
  76
  77     @Override
  78     public void ovsdbUpdate(Node node, DataObject resourceAugmentationData, OvsdbType ovsdbType, Action action) {
  79         logger.info("ovsdbUpdate: {} - {} - {}", ovsdbType, action, node);
  80         this.enqueueEvent(new SouthboundEvent(node, resourceAugmentationData,
  81                 ovsdbTypeToSouthboundEventType(ovsdbType), action));
  82     }
  83
  84     private void handleInterfaceUpdate (Node node, OvsdbTerminationPointAugmentation tp) {
  85         logger.debug("handleInterfaceUpdate node: {}, tp: {}", node, tp);
  86         NeutronNetwork network = tenantNetworkManager.getTenantNetwork(tp);
  87         if (network != null && !network.getRouterExternal()) {
  88             logger.trace("handleInterfaceUpdate node: {}, tp: {}, network: {}", node, tp, network.getNetworkUUID());
  89             tenantNetworkManager.programInternalVlan(node, tp, network);
  90             neutronL3Adapter.handleInterfaceEvent(node, tp, network, Action.UPDATE);
  91             if (bridgeConfigurationManager.createLocalNetwork(node, network)) {
  92                 networkingProviderManager.getProvider(node).handleInterfaceUpdate(network, node, tp);
  93             }
  94         } else {
  95             logger.debug("No tenant network found on node: {} for interface: {}", node, tp);
  96         }
  97     }
  98
  99     private void handleInterfaceDelete (Node node, OvsdbTerminationPointAugmentation intf,
 100                                         boolean isLastInstanceOnNode, NeutronNetwork network) {
 101         logger.debug("handleInterfaceDelete: node: {}, isLastInstanceOnNode: {}, interface: {}",
 102                 node, isLastInstanceOnNode, intf);
 103
 104         neutronL3Adapter.handleInterfaceEvent(node, intf, network, Action.DELETE);
 105         List<String> phyIfName = bridgeConfigurationManager.getAllPhysicalInterfaceNames(node);
 106         if (isInterfaceOfInterest(intf, phyIfName)) {
 107             // delete tunnel or physical interfaces
 108             networkingProviderManager.getProvider(node).handleInterfaceDelete(network.getProviderNetworkType(),
 109                     network, node, intf, isLastInstanceOnNode);
 110         } else if (network != null) {
 111             // vlan doesn't need a tunnel endpoint
 112             if (!network.getProviderNetworkType().equalsIgnoreCase(NetworkHandler.NETWORK_TYPE_VLAN)) {
 113                 if (configurationService.getTunnelEndPoint(node) == null) {
 114                     logger.error("Tunnel end-point configuration missing. Please configure it in OpenVSwitch Table");
 115                     return;
 116                 }
 117             }
 118             if (isLastInstanceOnNode & networkingProviderManager.getProvider(node).hasPerTenantTunneling()) {
 119                 tenantNetworkManager.reclaimInternalVlan(node, network);
 120             }
 121             networkingProviderManager.getProvider(node).handleInterfaceDelete(network.getProviderNetworkType(),
 122                     network, node, intf, isLastInstanceOnNode);
 123         }
 124     }
 125
 126     private void triggerUpdates() {
 127         List<Node> nodes = connectionService.getNodes();
 128         if (nodes == null) return;
 129         for (Node node : nodes) {
 130             OvsdbBridgeAugmentation bridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 131             if (bridge != null) {
 132                 processBridgeUpdate(node, bridge);
 133             }
 134
 135             List<TerminationPoint> tps = MdsalUtils.extractTerminationPoints(node);
 136             for (TerminationPoint tp : tps) {
 137                 OvsdbTerminationPointAugmentation port = tp.getAugmentation(OvsdbTerminationPointAugmentation.class);
 138                 if (port != null) {
 139                     processPortUpdate(node, port);
 140                 }
 141             }
 142         }
 143     }
 144
 145     private void processPortDelete(Node node, OvsdbTerminationPointAugmentation ovsdbTerminationPointAugmentation,
 146                                    Object context) {
 147         logger.debug("processportDelete {}: {}", node, ovsdbTerminationPointAugmentation);
 148         NeutronNetwork network = null;
 149         if (context == null) {
 150             network = tenantNetworkManager.getTenantNetwork(ovsdbTerminationPointAugmentation);
 151         } else {
 152             network = (NeutronNetwork)context;
 153         }
 154         List<String> phyIfName = bridgeConfigurationManager.getAllPhysicalInterfaceNames(node);
 155         if (isInterfaceOfInterest(ovsdbTerminationPointAugmentation, phyIfName)) {
 156             if (network != null) {
 157                 this.handleInterfaceDelete(node, ovsdbTerminationPointAugmentation, false, network);
 158             } else {
 159                 logger.warn("processPortDelete: network was null");
 160             }
 161         } else if (network != null && !network.getRouterExternal()) {
 162             logger.debug("Network {} : Delete interface {} attached to bridge {}", network.getNetworkUUID(),
 163                     ovsdbTerminationPointAugmentation.getInterfaceUuid(), node);
 164             try {
 165                 OvsdbBridgeAugmentation ovsdbBridgeAugmentation = node.getAugmentation(OvsdbBridgeAugmentation.class);
 166                 if (ovsdbBridgeAugmentation != null) {
 167                     List<TerminationPoint> terminationPoints = node.getTerminationPoint();
 168                     if(!terminationPoints.isEmpty()){
 169                         boolean isLastInstanceOnNode = true;
 170                         for(TerminationPoint terminationPoint : terminationPoints) {
 171                             OvsdbTerminationPointAugmentation tpAugmentation =
 172                                     terminationPoint.getAugmentation( OvsdbTerminationPointAugmentation.class);
 173                             if(tpAugmentation.getInterfaceUuid().equals(ovsdbTerminationPointAugmentation.getInterfaceUuid())) continue;
 174                             NeutronNetwork neutronNetwork = tenantNetworkManager.getTenantNetwork(tpAugmentation);
 175                             if (neutronNetwork != null && neutronNetwork.equals(network)) {
 176                                 isLastInstanceOnNode = false;
 177                                 break;
 178                             }
 179                         }
 180                         this.handleInterfaceDelete(node, ovsdbTerminationPointAugmentation,
 181                                 isLastInstanceOnNode, network);
 182                     }
 183                 }
 184             } catch (Exception e) {
 185                 logger.error("Error fetching Interface Rows for node " + node, e);
 186             }
 187         }
 188     }
 189
 190     private boolean isInterfaceOfInterest(OvsdbTerminationPointAugmentation terminationPoint, List<String> phyIfName) {
 191         return (MdsalHelper.createOvsdbInterfaceType(
 192                 terminationPoint.getInterfaceType()).equals(NetworkHandler.NETWORK_TYPE_VXLAN)
 193                 ||
 194                 MdsalHelper.createOvsdbInterfaceType(
 195                         terminationPoint.getInterfaceType()).equals(NetworkHandler.NETWORK_TYPE_GRE)
 196                 ||
 197                 phyIfName.contains(terminationPoint.getName()));
 198     }
 199
 200     /**
 201      * Notification about an OpenFlow Node
 202      *
 203      * @param node the {@link Node Node} of interest in the notification
 204      * @param action the {@link Action}
 205      * @see NodeCacheListener#notifyNode
 206      */
 207     @Override
 208     public void notifyNode (Node node, Action action) {
 209         logger.info("notifyNode: Node {} update {}", node, action);
 210
 211         if (action.equals(Action.ADD)) {
 212             if (MdsalUtils.getBridge(node) != null) {
 213                 networkingProviderManager.getProvider(node).initializeOFFlowRules(node);
 214             }
 215         }
 216     }
 217
 218     /**
 219      * Process the event.
 220      *
 221      * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
 222      * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
 223      */
 224     @Override
 225     public void processEvent(AbstractEvent abstractEvent) {
 226         if (!(abstractEvent instanceof SouthboundEvent)) {
 227             logger.error("Unable to process abstract event " + abstractEvent);
 228             return;
 229         }
 230         SouthboundEvent ev = (SouthboundEvent) abstractEvent;
 231         logger.info("processEvent: {}", ev);
 232         switch (ev.getType()) {
 233             case NODE:
 234                 processOvsdbNodeEvent(ev);
 235                 break;
 236             case BRIDGE:
 237                 processBridgeEvent(ev);
 238                 break;
 239
 240             case PORT:
 241                 processPortEvent(ev);
 242                 break;
 243
 244             case OPENVSWITCH:
 245                 processOpenVSwitchEvent(ev);
 246                 break;
 247
 248             default:
 249                 logger.warn("Unable to process type " + ev.getType() +
 250                         " action " + ev.getAction() + " for node " + ev.getNode());
 251                 break;
 252         }
 253     }
 254
 255     private void processOvsdbNodeEvent(SouthboundEvent ev) {
 256         switch (ev.getAction()) {
 257             case ADD:
 258                 processOvsdbNodeCreate(ev.getNode(), (OvsdbNodeAugmentation) ev.getAugmentationData());
 259                 break;
 260             case UPDATE:
 261                 processOvsdbNodeUpdate(ev.getNode(), (OvsdbNodeAugmentation) ev.getAugmentationData());
 262                 break;
 263             case DELETE:
 264                 processOvsdbNodeDelete(ev.getNode(), (OvsdbNodeAugmentation) ev.getAugmentationData());
 265                 break;
 266         }
 267     }
 268
 269     private void processOvsdbNodeCreate(Node node, OvsdbNodeAugmentation ovsdbNode) {
 270         logger.info("processOvsdbNodeCreate {} - {}", node, ovsdbNode);
 271         nodeCacheManager.nodeAdded(node);
 272         bridgeConfigurationManager.prepareNode(node);
 273     }
 274
 275     private void processOvsdbNodeUpdate(Node node, OvsdbNodeAugmentation ovsdbNode) {
 276         logger.info("processOvsdbNodeUpdate {} - {}", node, ovsdbNode);
 277         nodeCacheManager.nodeAdded(node);
 278     }
 279
 280     private void processOvsdbNodeDelete(Node node, OvsdbNodeAugmentation ovsdbNode) {
 281         logger.info("processOvsdbNodeDelete {} - {}", node, ovsdbNode);
 282         nodeCacheManager.nodeRemoved(node);
 283         /* TODO SB_MIGRATION
 284         * I don't think we want to do this yet
 285         InstanceIdentifier<Node> bridgeNodeIid =
 286                 MdsalHelper.createInstanceIdentifier(ovsdbNode.getConnectionInfo(),
 287                         Constants.INTEGRATION_BRIDGE);
 288         MdsalUtils.delete(LogicalDatastoreType.CONFIGURATION, bridgeNodeIid);
 289         */
 290     }
 291
 292     private void processPortEvent(SouthboundEvent ev) {
 293         switch (ev.getAction()) {
 294             case ADD:
 295             case UPDATE:
 296                 processPortUpdate(ev.getNode(), (OvsdbTerminationPointAugmentation) ev.getAugmentationData());
 297                 break;
 298             case DELETE:
 299                 processPortDelete(ev.getNode(), (OvsdbTerminationPointAugmentation) ev.getAugmentationData(), null);
 300                 break;
 301         }
 302     }
 303
 304     private void processPortUpdate(Node node, OvsdbTerminationPointAugmentation port) {
 305         logger.debug("processPortUpdate {} - {}", node, port);
 306         NeutronNetwork network = tenantNetworkManager.getTenantNetwork(port);
 307         if (network != null && !network.getRouterExternal()) {
 308             this.handleInterfaceUpdate(node, port);
 309         }
 310
 311     }
 312
 313     private void processOpenVSwitchEvent(SouthboundEvent ev) {
 314         switch (ev.getAction()) {
 315             case ADD:
 316             case UPDATE:
 317                 processOpenVSwitchUpdate(ev.getNode());
 318                 break;
 319             case DELETE:
 320                 break;
 321         }
 322     }
 323
 324     private void processOpenVSwitchUpdate(Node node) {
 325         logger.debug("processOpenVSwitchUpdate {}", node);
 326         // TODO this node might be the OvsdbNode and not have termination points
 327         // Would need to change listener or grab tp nodes in here.
 328         List<TerminationPoint> terminationPoints = MdsalUtils.extractTerminationPoints(node);
 329         for (TerminationPoint terminationPoint : terminationPoints) {
 330             processPortUpdate(node, terminationPoint.getAugmentation(OvsdbTerminationPointAugmentation.class));
 331         }
 332     }
 333
 334     private void processBridgeEvent(SouthboundEvent ev) {
 335         switch (ev.getAction()) {
 336             case ADD:
 337             case UPDATE:
 338                 processBridgeUpdate(ev.getNode(), (OvsdbBridgeAugmentation) ev.getAugmentationData());
 339                 break;
 340             case DELETE:
 341                 processBridgeDelete(ev.getNode(), (OvsdbBridgeAugmentation) ev.getAugmentationData());
 342                 break;
 343         }
 344     }
 345
 346     private void processBridgeUpdate(Node node, OvsdbBridgeAugmentation bridge) {
 347         logger.debug("processBridgeUpdate {}, {}", node, bridge);
 348         String datapathId = MdsalUtils.getDatapathId(bridge);
 349         // Having a datapathId means the bridge has connected so it exists
 350         if (datapathId != null) {
 351             nodeCacheManager.nodeAdded(node);
 352         } else {
 353             logger.info("dataPathId not found");
 354         }
 355     }
 356
 357     private void processBridgeDelete(Node node, OvsdbBridgeAugmentation bridge) {
 358         logger.debug("processBridgeDelete: Delete bridge from config data store : {}", node.getNodeId());
 359         nodeCacheManager.nodeRemoved(node);
 360         // TODO SB_MIGRATION
 361         // Not sure if we want to do this yet
 362         //MdsalUtils.deleteBridge(node);
 363     }
 364 }