openstack/net-virt/src/main/java/org/opendaylight/ovsdb/openstack/netvirt/NetworkHandler.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  * Authors : Madhu Venugopal, Brent Salisbury, Hsin-Yi Shen
   9  */
  10 package org.opendaylight.ovsdb.openstack.netvirt;
  11
  12 import org.opendaylight.neutron.spi.INeutronNetworkAware;
  13 import org.opendaylight.neutron.spi.INeutronNetworkCRUD;
  14 import org.opendaylight.neutron.spi.NeutronNetwork;
  15 import org.opendaylight.ovsdb.lib.notation.Row;
  16 import org.opendaylight.ovsdb.lib.notation.UUID;
  17 import org.opendaylight.ovsdb.openstack.netvirt.api.Action;
  18 import org.opendaylight.ovsdb.openstack.netvirt.api.BridgeConfigurationManager;
  19 //import org.opendaylight.ovsdb.openstack.netvirt.api.ConfigurationService;
  20 import org.opendaylight.ovsdb.openstack.netvirt.api.TenantNetworkManager;
  21 import org.opendaylight.ovsdb.openstack.netvirt.impl.NeutronL3Adapter;
  22 import org.opendaylight.ovsdb.plugin.api.OvsdbConfigurationService;
  23 import org.opendaylight.ovsdb.plugin.api.OvsdbConnectionService;
  24 //import org.opendaylight.ovsdb.plugin.api.OvsdbInventoryListener;
  25 import org.opendaylight.ovsdb.schema.openvswitch.Interface;
  26 import org.opendaylight.ovsdb.schema.openvswitch.Port;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  28
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 import java.net.HttpURLConnection;
  33 import java.util.List;
  34 import java.util.concurrent.ConcurrentMap;
  35
  36 /**
  37  * Handle requests for Neutron Network.
  38  */
  39 public class NetworkHandler extends AbstractHandler
  40                             implements INeutronNetworkAware {
  41
  42     public static final String NETWORK_TYPE_VXLAN = "vxlan";
  43     public static final String NETWORK_TYPE_GRE = "gre";
  44     public static final String NETWORK_TYPE_VLAN = "vlan";
  45
  46     /**
  47      * Logger instance.
  48      */
  49     static final Logger logger = LoggerFactory.getLogger(NetworkHandler.class);
  50
  51     // The implementation for each of these services is resolved by the OSGi Service Manager
  52     private volatile TenantNetworkManager tenantNetworkManager;
  53     private volatile BridgeConfigurationManager bridgeConfigurationManager;
  54     //private volatile ConfigurationService configurationService;
  55     private volatile OvsdbConfigurationService ovsdbConfigurationService;
  56     private volatile OvsdbConnectionService connectionService;
  57     private volatile INeutronNetworkCRUD neutronNetworkCache;
  58     //private volatile OvsdbInventoryListener ovsdbInventoryListener;
  59     private volatile NeutronL3Adapter neutronL3Adapter;
  60
  61     /**
  62      * Invoked when a network creation is requested
  63      * to indicate if the specified network can be created.
  64      *
  65      * @param network  An instance of proposed new Neutron Network object.
  66      * @return A HTTP status code to the creation request.
  67      */
  68     @Override
  69     public int canCreateNetwork(NeutronNetwork network) {
  70         if (network.isShared()) {
  71             logger.error(" Network shared attribute not supported ");
  72             return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
  73         }
  74
  75         return HttpURLConnection.HTTP_OK;
  76     }
  77
  78     /**
  79      * Invoked to take action after a network has been created.
  80      *
  81      * @param network  An instance of new Neutron Network object.
  82      */
  83     @Override
  84     public void neutronNetworkCreated(NeutronNetwork network) {
  85         enqueueEvent(new NorthboundEvent(network, Action.ADD));
  86     }
  87     private void doNeutronNetworkCreated(NeutronNetwork network) {
  88         neutronL3Adapter.handleNeutronNetworkEvent(network, Action.ADD);
  89     }
  90
  91     /**
  92      * Invoked when a network update is requested
  93      * to indicate if the specified network can be changed
  94      * using the specified delta.
  95      *
  96      * @param delta     Updates to the network object using patch semantics.
  97      * @param original  An instance of the Neutron Network object
  98      *                  to be updated.
  99      * @return A HTTP status code to the update request.
 100      */
 101     @Override
 102     public int canUpdateNetwork(NeutronNetwork delta,
 103                                 NeutronNetwork original) {
 104         if (delta.isShared()) {
 105             logger.error(" Network shared attribute not supported ");
 106             return HttpURLConnection.HTTP_NOT_ACCEPTABLE;
 107         }
 108
 109         return HttpURLConnection.HTTP_OK;
 110     }
 111
 112     /**
 113      * Invoked to take action after a network has been updated.
 114      *
 115      * @param network An instance of modified Neutron Network object.
 116      */
 117     @Override
 118     public void neutronNetworkUpdated(NeutronNetwork network) {
 119         enqueueEvent(new NorthboundEvent(network, Action.UPDATE));
 120     }
 121     private void doNeutronNetworkUpdated(NeutronNetwork network) {
 122         neutronL3Adapter.handleNeutronNetworkEvent(network, Action.UPDATE);
 123     }
 124
 125     /**
 126      * Invoked when a network deletion is requested
 127      * to indicate if the specified network can be deleted.
 128      *
 129      * @param network  An instance of the Neutron Network object to be deleted.
 130      * @return A HTTP status code to the deletion request.
 131      */
 132     @Override
 133     public int canDeleteNetwork(NeutronNetwork network) {
 134         return HttpURLConnection.HTTP_OK;
 135     }
 136
 137     /**
 138      * Invoked to take action after a network has been deleted.
 139      *
 140      * @param network  An instance of deleted Neutron Network object.
 141      */
 142     @Override
 143     public void neutronNetworkDeleted(NeutronNetwork network) {
 144         enqueueEvent(new NorthboundEvent(network, Action.DELETE));
 145     }
 146     private void doNeutronNetworkDeleted(NeutronNetwork network) {
 147         neutronL3Adapter.handleNeutronNetworkEvent(network, Action.DELETE);
 148
 149         /* Is this the last Neutron tenant network */
 150         List <NeutronNetwork> networks;
 151         if (neutronNetworkCache != null) {
 152             networks = neutronNetworkCache.getAllNetworks();
 153             if (networks.isEmpty()) {
 154                 logger.trace("neutronNetworkDeleted: last tenant network, delete tunnel ports...");
 155                 List<Node> nodes = connectionService.getNodes();
 156
 157                 for (Node node : nodes) {
 158                     List<String> phyIfName = bridgeConfigurationManager.getAllPhysicalInterfaceNames(node);
 159                     try {
 160                         ConcurrentMap<String, Row> ports =
 161                                 this.ovsdbConfigurationService.getRows(node,
 162                                                                 ovsdbConfigurationService.getTableName(node, Port.class));
 163                         if (ports != null) {
 164                             for (Row portRow : ports.values()) {
 165                                 Port port = ovsdbConfigurationService.getTypedRow(node, Port.class, portRow);
 166                                 for (UUID interfaceUuid : port.getInterfacesColumn().getData()) {
 167                                     Row ifaceRow = ovsdbConfigurationService
 168                                             .getRow(node,
 169                                                     ovsdbConfigurationService.getTableName(node, Interface.class),
 170                                                     interfaceUuid.toString());
 171                                     Interface iface = ovsdbConfigurationService.getTypedRow(node, Interface.class, ifaceRow);
 172                                     String interfaceType = iface.getTypeColumn().getData();
 173                                     if (interfaceType.equalsIgnoreCase(NetworkHandler.NETWORK_TYPE_VXLAN)
 174                                         || interfaceType.equalsIgnoreCase(
 175                                             NetworkHandler.NETWORK_TYPE_GRE)) {
 176                                         /* delete tunnel ports on this node */
 177                                         logger.trace("Delete tunnel interface {}", iface.getName());
 178                                         ovsdbConfigurationService.deleteRow(node,
 179                                                                      ovsdbConfigurationService.getTableName(node, Port.class),
 180                                                                      port.getUuid().toString());
 181                                         break;
 182                                     } else if (!phyIfName.isEmpty() && phyIfName.contains(iface.getName())) {
 183                                         logger.trace("Delete physical interface {}", iface.getName());
 184                                         ovsdbConfigurationService.deleteRow(node,
 185                                                                      ovsdbConfigurationService.getTableName(node, Port.class),
 186                                                                      port.getUuid().toString());
 187                                         break;
 188                                     }
 189                                 }
 190                             }
 191                         }
 192                     } catch (Exception e) {
 193                         logger.error("Exception during handlingNeutron network delete", e);
 194                     }
 195                 }
 196             }
 197         }
 198         tenantNetworkManager.networkDeleted(network.getID());
 199     }
 200
 201     /**
 202      * Process the event.
 203      *
 204      * @param abstractEvent the {@link org.opendaylight.ovsdb.openstack.netvirt.AbstractEvent} event to be handled.
 205      * @see org.opendaylight.ovsdb.openstack.netvirt.api.EventDispatcher
 206      */
 207     @Override
 208     public void processEvent(AbstractEvent abstractEvent) {
 209         if (!(abstractEvent instanceof NorthboundEvent)) {
 210             logger.error("Unable to process abstract event " + abstractEvent);
 211             return;
 212         }
 213         NorthboundEvent ev = (NorthboundEvent) abstractEvent;
 214         switch (ev.getAction()) {
 215             case ADD:
 216                 doNeutronNetworkCreated(ev.getNeutronNetwork());
 217                 break;
 218             case UPDATE:
 219                 doNeutronNetworkUpdated(ev.getNeutronNetwork());
 220                 break;
 221             case DELETE:
 222                 doNeutronNetworkDeleted(ev.getNeutronNetwork());
 223                 break;
 224             default:
 225                 logger.warn("Unable to process event action " + ev.getAction());
 226                 break;
 227         }
 228     }
 229
 230 }