neutron-ovsdb/src/main/java/org/opendaylight/groupbasedpolicy/neutron/ovsdb/util/OvsdbHelper.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, 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
   9 package org.opendaylight.groupbasedpolicy.neutron.ovsdb.util;
  10
  11 import static org.opendaylight.groupbasedpolicy.util.DataStoreHelper.readFromDs;
  12 import static org.opendaylight.groupbasedpolicy.util.DataStoreHelper.submitToDs;
  13
  14 import com.google.common.base.Optional;
  15
  16 import java.util.ArrayList;
  17 import java.util.List;
  18
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadTransaction;
  21 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  22 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  23 import org.opendaylight.groupbasedpolicy.neutron.ovsdb.AbstractTunnelType;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.InterfaceTypeVxlan;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentationBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeRef;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentationBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntry;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.bridge.attributes.ControllerEntryBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.Options;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.OptionsBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  39 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  40 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  42 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointBuilder;
  43 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 public class OvsdbHelper {
  48     private static final Logger LOG = LoggerFactory.getLogger(OvsdbHelper.class);
  49     private static final String OF_PORT = "6653";
  50
  51     /**
  52      * Look up the {@link OvsdbBridgeAugmentation} from the data store
  53      * given a child {@link InstanceIdentifier} of {@link OvsdbTerminationPointAugmentation}.
  54      *
  55      * @param tpIid The InstanceIdentifier for a child TerminationPoint augmentation
  56      * @param dataBroker the {@link DataBroker}
  57      * @return the {@link OvsdbBridgeAugmentation}, null if the augmentation isn't present
  58      */
  59     public static OvsdbBridgeAugmentation getOvsdbBridgeFromTerminationPoint(
  60             InstanceIdentifier<OvsdbTerminationPointAugmentation> tpIid, DataBroker dataBroker) {
  61         InstanceIdentifier<Node> nodeIid = tpIid.firstIdentifierOf(Node.class);
  62         if (nodeIid != null) {
  63             InstanceIdentifier<OvsdbBridgeAugmentation>
  64                 ovsdbBridgeIid = nodeIid.augmentation(OvsdbBridgeAugmentation.class);
  65             if (ovsdbBridgeIid != null) {
  66                 ReadTransaction transaction = dataBroker.newReadOnlyTransaction();
  67                 Optional<OvsdbBridgeAugmentation> ovsdbBridge =
  68                     readFromDs(LogicalDatastoreType.OPERATIONAL, ovsdbBridgeIid, transaction);
  69                 if (ovsdbBridge.isPresent()) {
  70                     return ovsdbBridge.get();
  71                 }
  72             }
  73         }
  74         return null;
  75     }
  76
  77     public static Node getNodeFromBridgeRef(OvsdbBridgeRef bridgeRef, DataBroker dataBroker) {
  78         InstanceIdentifier<Node> nodeIid = bridgeRef.getValue().firstIdentifierOf(Node.class);
  79         ReadTransaction transaction = dataBroker.newReadOnlyTransaction();
  80         Optional<?> node = readFromDs(LogicalDatastoreType.OPERATIONAL, nodeIid, transaction);
  81         if (node.isPresent()) {
  82             if (node.get() instanceof Node) {
  83                 return (Node) node.get();
  84             }
  85         }
  86         return null;
  87     }
  88
  89     public static OvsdbTerminationPointAugmentation getOvsdbTerminationPoint(
  90             InstanceIdentifier<OvsdbTerminationPointAugmentation> tpIid, DataBroker dataBroker) {
  91         ReadTransaction transaction = dataBroker.newReadOnlyTransaction();
  92         Optional<OvsdbTerminationPointAugmentation>
  93             ovsdbTp = readFromDs(LogicalDatastoreType.OPERATIONAL, tpIid, transaction);
  94         if (ovsdbTp.isPresent()) {
  95             return ovsdbTp.get();
  96         }
  97         return null;
  98     }
  99
 100     public static Node getNode(Node node, List<TerminationPoint> tps,
 101             OvsdbBridgeAugmentation ovsdbBridgeAugmentation) {
 102         NodeBuilder nodeBuilder = new NodeBuilder();
 103         nodeBuilder.setKey(node.getKey());
 104
 105         nodeBuilder.addAugmentation(OvsdbBridgeAugmentation.class,
 106                 ovsdbBridgeAugmentation);
 107
 108         nodeBuilder.setTerminationPoint(tps);
 109         return nodeBuilder.build();
 110     }
 111
 112     public static OvsdbBridgeAugmentation buildOvsdbBridgeAugmentation(OvsdbBridgeAugmentation bridge,
 113             OvsdbNodeAugmentation ovsdbNode) {
 114         OvsdbBridgeAugmentationBuilder ovsdbBridgeAugmentation = new OvsdbBridgeAugmentationBuilder();
 115         IpAddress managerIp = getManagerIp(ovsdbNode);
 116         if (managerIp != null) {
 117             List<ControllerEntry> controllerEntries = buildControllerEntries(managerIp);
 118             ovsdbBridgeAugmentation.setControllerEntry(controllerEntries);
 119         }
 120         ovsdbBridgeAugmentation.setBridgeName(bridge.getBridgeName());
 121         ovsdbBridgeAugmentation.setManagedBy(bridge.getManagedBy());
 122         return ovsdbBridgeAugmentation.build();
 123     }
 124
 125     public static List<TerminationPoint> buildTerminationPoints(OvsdbBridgeAugmentation bridge,
 126             OvsdbTerminationPointAugmentation ovsdbTp, AbstractTunnelType tunnelType) {
 127         TerminationPointBuilder tpBuilder = new TerminationPointBuilder();
 128         tpBuilder.setTpId(new TpId(new Uri(generateTpName(bridge, tunnelType))));
 129         tpBuilder.addAugmentation(OvsdbTerminationPointAugmentation.class, ovsdbTp);
 130
 131         List<TerminationPoint> tps = new ArrayList<TerminationPoint>();
 132         tps.add(tpBuilder.build());
 133         return tps;
 134     }
 135
 136     public static String generateTpName(OvsdbBridgeAugmentation bridge, AbstractTunnelType tunnelType) {
 137         return tunnelType.getTunnelPrefix() + bridge.getBridgeName().getValue();
 138     }
 139
 140     public static OvsdbTerminationPointAugmentation buildOvsdbTerminationPointAugmentation(
 141             OvsdbBridgeAugmentation bridge, List<Options> options, AbstractTunnelType tunnelType) {
 142         OvsdbTerminationPointAugmentationBuilder ovsdbTpBuilder = new OvsdbTerminationPointAugmentationBuilder();
 143         ovsdbTpBuilder.setName(generateTpName(bridge, tunnelType));
 144         ovsdbTpBuilder.setOptions(options);
 145         ovsdbTpBuilder.setInterfaceType(InterfaceTypeVxlan.class);
 146         return ovsdbTpBuilder.build();
 147     }
 148
 149     public static void setOption(List<Options> options, String key, String value) {
 150         OptionsBuilder option = new OptionsBuilder();
 151         option.setOption(key);
 152         option.setValue(value);
 153         options.add(option.build());
 154     }
 155
 156     public static IpAddress getManagerIp(OvsdbNodeAugmentation ovsdbNode) {
 157         if (ovsdbNode.getConnectionInfo() != null) {
 158             return ovsdbNode.getConnectionInfo().getLocalIp();
 159         }
 160         return null;
 161     }
 162
 163     public static IpAddress getNodeIp(OvsdbNodeAugmentation ovsdbNode) {
 164         if (ovsdbNode.getConnectionInfo() != null) {
 165             return ovsdbNode.getConnectionInfo().getRemoteIp();
 166         }
 167         return null;
 168     }
 169
 170     public static List<ControllerEntry> buildControllerEntries(IpAddress ip) {
 171         List<ControllerEntry> result = new ArrayList<ControllerEntry>();
 172
 173         if (ip != null) {
 174             ControllerEntryBuilder controllerBuilder = new ControllerEntryBuilder();
 175             String localIp = String.valueOf(ip.getValue());
 176             String targetString = "tcp:" + localIp + ":" + OF_PORT;
 177             controllerBuilder.setTarget(new Uri(targetString));
 178             result.add(controllerBuilder.build());
 179         }
 180
 181         return result;
 182     }
 183
 184     /**
 185      * Get the manager node for this bridge node.
 186      *
 187      * @param bridge the bridge node
 188      * @param dataBroker the {@link DataBroker}
 189      * @return The {@link OvsdbBridgeAugmentation} for the manager node, null
 190      *         if not found or if it already is the manager node
 191      */
 192     public static OvsdbNodeAugmentation getManagerNode(OvsdbBridgeAugmentation bridge, DataBroker dataBroker) {
 193         OvsdbNodeRef bareIId = bridge.getManagedBy();
 194         if (bareIId != null) {
 195             if (bareIId.getValue().getTargetType().equals(Node.class)) {
 196                 ReadWriteTransaction transaction = dataBroker.newReadWriteTransaction();
 197                 InstanceIdentifier<Node> iid = (InstanceIdentifier<Node>) bareIId.getValue();
 198                 Optional<Node> nodeOptional = readFromDs(LogicalDatastoreType.OPERATIONAL, iid, transaction);
 199                 if (nodeOptional.isPresent()
 200                     && nodeOptional.get().getAugmentation(OvsdbNodeAugmentation.class) != null) {
 201                     return nodeOptional.get().getAugmentation(OvsdbNodeAugmentation.class);
 202                 } else {
 203                     LOG.warn("Could not find ovsdb-node for connection for {}", bridge);
 204                 }
 205             } else {
 206                 LOG.warn("Bridge 'managedBy' non-ovsdb-node.  bridge {} getManagedBy() {}", bridge, bareIId.getValue());
 207             }
 208         } else {
 209             LOG.debug("Bridge 'managedBy' is null.  bridge {}",bridge);
 210         }
 211         return null;
 212     }
 213
 214     public static Node getTopologyNode(InstanceIdentifier<Node> nodeIid, DataBroker dataBroker) {
 215         ReadTransaction transaction = dataBroker.newReadOnlyTransaction();
 216         Optional<Node> nodeOptional = readFromDs(LogicalDatastoreType.OPERATIONAL, nodeIid, transaction);
 217         if (nodeOptional.isPresent()) {
 218             return nodeOptional.get();
 219         }
 220         return null;
 221     }
 222
 223     /**
 224      * Use OVSDB CRUD to create any missing tunnels on a given
 225      * Inventory Node.
 226      *
 227      * @param nodeIid the node instance identifier
 228      * @param node the inventory node
 229      * @param tunnelType the tunnel type
 230      * @param dataBroker the {@link DataBroker}
 231      */
 232     public static void createTunnelPort(InstanceIdentifier<Node> nodeIid,
 233             Node node, AbstractTunnelType tunnelType, DataBroker dataBroker) {
 234         OvsdbBridgeAugmentation bridge = node.getAugmentation(OvsdbBridgeAugmentation.class);
 235         if (bridge == null) {
 236             LOG.warn("No OvsdbBridgeAugmentationfor Node {}", node);
 237             return;
 238         }
 239
 240         OvsdbNodeAugmentation managerNode = getManagerNode(bridge, dataBroker);
 241         if (managerNode == null) {
 242             LOG.warn("Couldn't create tunnel port for Node {}, no manager", node);
 243             return;
 244         }
 245         List<Options> options = tunnelType.getOptions();
 246         OvsdbTerminationPointAugmentation ovsdbTp = buildOvsdbTerminationPointAugmentation(bridge, options, tunnelType);
 247         List<TerminationPoint> tps = buildTerminationPoints(bridge,ovsdbTp, tunnelType);
 248         OvsdbBridgeAugmentation ovsdbBridgeAugmentation = buildOvsdbBridgeAugmentation(bridge,managerNode);
 249         Node configNode = getNode(node, tps,ovsdbBridgeAugmentation);
 250         LOG.info("About to write nodeId {} node {}",nodeIid,configNode);
 251         ReadWriteTransaction rwTx = dataBroker.newReadWriteTransaction();
 252         rwTx.merge(LogicalDatastoreType.CONFIGURATION, nodeIid, configNode);
 253         submitToDs(rwTx);
 254     }
 255
 256
 257 }