renderers/vpp/src/main/java/org/opendaylight/groupbasedpolicy/renderer/vpp/lisp/flat/overlay/StaticRoutingHelper.java

   1 /*
   2  * Copyright (c) 2017 Cisco Systems. 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.groupbasedpolicy.renderer.vpp.lisp.flat.overlay;
   9
  10 import com.google.common.base.Preconditions;
  11
  12 import java.util.Collections;
  13 import java.util.List;
  14
  15 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.HostRelatedInfoContainer;
  16 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.PortInterfaces;
  17 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.PortRouteState;
  18 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.VrfHolder;
  19 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.VrfState;
  20 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.util.Constants;
  21 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.GbpNetconfTransaction;
  22 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.VppIidFactory;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.StaticRoutes1;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.Ipv4;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.Ipv4Builder;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.Route;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.RouteBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.RouteKey;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.route.next.hop.options.SimpleNextHopBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.route.next.hop.options.TableLookupBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.route.next.hop.options.table.lookup.TableLookupParamsBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.Static;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocol;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolKey;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol.StaticRoutes;
  39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev170917.RoutingProtocolVppAttr;
  40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev170917.RoutingProtocolVppAttrBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev170917.VniReference;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev170917.routing.routing.instance.routing.protocols.routing.protocol.VppProtocolAttributesBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  44 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  45 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 class StaticRoutingHelper {
  50     private static final Logger LOG = LoggerFactory.getLogger(StaticRoutingHelper.class);
  51
  52     private HostRelatedInfoContainer hostRelatedInfoContainer = HostRelatedInfoContainer.getInstance();
  53
  54     synchronized boolean addRoutingProtocolForVrf(InstanceIdentifier<Node> nodeIid, long vrfId,
  55         VrfHolder vrfHolderOfHost) {
  56         String routingProtocolName = getRoutingProtocolName(vrfId);
  57         RoutingProtocolBuilder builder = new RoutingProtocolBuilder();
  58         builder.setKey(new RoutingProtocolKey(routingProtocolName));
  59         builder.setName(routingProtocolName);
  60         builder.setType(Static.class);
  61         builder.setDescription(Constants.DEFAULT_ROUTING_DESCRIPTION);
  62         RoutingProtocolVppAttrBuilder vppAugmentationBuilder = new RoutingProtocolVppAttrBuilder();
  63
  64         vppAugmentationBuilder.
  65                 setVppProtocolAttributes(new VppProtocolAttributesBuilder()
  66                                                 .setPrimaryVrf(new VniReference(vrfId)).build());
  67
  68         builder.addAugmentation(RoutingProtocolVppAttr.class, vppAugmentationBuilder.build());
  69
  70         InstanceIdentifier<RoutingProtocol> iid = VppIidFactory
  71                 .getRoutingInstanceIid(builder.getKey());
  72         if (GbpNetconfTransaction.netconfSyncedWrite(nodeIid, iid, builder.build(),
  73                 GbpNetconfTransaction.RETRY_COUNT)) {
  74             vrfHolderOfHost.initializeVrfState(vrfId, routingProtocolName);
  75             return true;
  76         }
  77
  78         return false;
  79     }
  80
  81     synchronized boolean addSingleStaticRouteInRoutingProtocol(String hostName, long portVrfId, String portSubnetUuid,
  82         Ipv4Address nextHopAddress, Ipv4Prefix ipPrefix, String outgoingInterface, VniReference secondaryVrf) {
  83         RouteBuilder builder = new RouteBuilder();
  84
  85         VrfState hostVrfStateForPortVrf = hostRelatedInfoContainer
  86                                                     .getVrfStateOfHost(hostName)
  87                                                     .getVrfState(portVrfId);
  88
  89         PortInterfaces hostPortInterfaces = hostRelatedInfoContainer
  90                                                     .getPortInterfaceStateOfHost(hostName);
  91
  92         if (!hostPortInterfaces.isRoutingContextForInterfaceInitialized(outgoingInterface)) {
  93             hostRelatedInfoContainer.getPortInterfaceStateOfHost(hostName).
  94                 initializeRoutingContextForInterface(outgoingInterface, portVrfId);
  95         }
  96
  97         Preconditions.checkNotNull(hostVrfStateForPortVrf, "Vrf has not been initialized yet");
  98
  99         long routeId = hostVrfStateForPortVrf.getNextRouteId();
 100
 101         builder.setId(routeId);
 102         builder.setDestinationPrefix(ipPrefix);
 103         builder.setKey(new RouteKey(builder.getId()));
 104
 105         if (secondaryVrf != null) {
 106             builder.setNextHopOptions(new TableLookupBuilder().setTableLookupParams(
 107                 new TableLookupParamsBuilder().setSecondaryVrf(secondaryVrf).build()).build());
 108         } else {
 109             builder.setNextHopOptions(
 110                 new SimpleNextHopBuilder().setNextHop(nextHopAddress).setOutgoingInterface(outgoingInterface).build());
 111         }
 112
 113         List<Route> routes = Collections.singletonList(builder.build());
 114
 115         Ipv4 ipv4Route = new Ipv4Builder().setRoute(routes).build();
 116
 117         InstanceIdentifier<Ipv4> iid = VppIidFactory
 118                 .getRoutingInstanceIid(new RoutingProtocolKey(hostVrfStateForPortVrf.getProtocolName()))
 119                 .child(StaticRoutes.class)
 120                 .augmentation(StaticRoutes1.class)
 121                 .child(Ipv4.class);
 122
 123         RoutingProtocolKey routingProtocolKey = new RoutingProtocolKey(hostVrfStateForPortVrf.getProtocolName());
 124         boolean routingProtocol =
 125             GbpNetconfTransaction.netconfSyncedMerge(VppIidFactory.getNetconfNodeIid(new NodeId(hostName)),
 126                 VppIidFactory.getRoutingInstanceIid(routingProtocolKey),
 127                 new RoutingProtocolBuilder().setKey(routingProtocolKey).setType(Static.class).build(),
 128                 GbpNetconfTransaction.RETRY_COUNT);
 129
 130         if (routingProtocol && GbpNetconfTransaction.netconfSyncedMerge(
 131             VppIidFactory.getNetconfNodeIid(new NodeId(hostName)), iid, ipv4Route, GbpNetconfTransaction.RETRY_COUNT)) {
 132             hostVrfStateForPortVrf.addNewPortIpInVrf(portSubnetUuid, nextHopAddress);
 133             hostPortInterfaces.addRouteToPortInterface(outgoingInterface, portSubnetUuid, nextHopAddress, routeId);
 134             return true;
 135         }
 136
 137         return false;
 138     }
 139
 140     synchronized boolean deleteSingleStaticRouteFromRoutingProtocol(String hostName, long vrfId,
 141         String outgoingInterfaceName, Long routeId) {
 142         VrfState vrfState = hostRelatedInfoContainer.getVrfStateOfHost(hostName).getVrfState(vrfId);
 143
 144         Preconditions.checkNotNull(vrfState, "Vrf has not been initialized");
 145
 146         InstanceIdentifier<Route> iid = VppIidFactory
 147                 .getRoutingInstanceIid(new RoutingProtocolKey(vrfState.getProtocolName()))
 148                 .child(StaticRoutes.class)
 149                 .augmentation(StaticRoutes1.class)
 150                 .child(Ipv4.class)
 151                 .child(Route.class, new RouteKey(routeId));
 152
 153         if (!GbpNetconfTransaction.netconfSyncedDelete(VppIidFactory.getNetconfNodeIid(new NodeId(hostName)), iid,
 154                 GbpNetconfTransaction.RETRY_COUNT)) {
 155             LOG.warn("Route delete failed for interface {} from {}", outgoingInterfaceName, hostName);
 156             return false;
 157         }
 158         return true;
 159     }
 160
 161     synchronized void deleteAllRoutesThroughInterface(String hostName, String outgoingInterfaceName) {
 162         PortRouteState portRouteState = hostRelatedInfoContainer
 163                                             .getPortInterfaceStateOfHost(hostName)
 164                                             .getPortRouteState(outgoingInterfaceName);
 165
 166         long vrfId = hostRelatedInfoContainer.getPortInterfaceStateOfHost(hostName)
 167                 .getInterfaceVrfId(outgoingInterfaceName);
 168         if(vrfId == -1) {
 169             LOG.error("VrfID was not resolved when removing routes from interface. hostname: {}, interface: {}",
 170                 hostName, outgoingInterfaceName);
 171             return;
 172         }
 173
 174         List<Ipv4Address> ipThroughInterface = portRouteState.getAllIps();
 175
 176         for (Ipv4Address ip : ipThroughInterface) {
 177             long routeId = portRouteState.getRouteIdOfIp(ip);
 178             String subnetUuidOfIp = portRouteState.getSubnetUuidOfIp(ip);
 179             boolean ok = deleteSingleStaticRouteFromRoutingProtocol(hostName, vrfId,
 180                     outgoingInterfaceName, routeId);
 181
 182             if (ok) {
 183                 portRouteState.removeIp(ip);
 184                 hostRelatedInfoContainer
 185                         .getVrfStateOfHost(hostName)
 186                         .getVrfState(vrfId)
 187                         .removePortIpFromVrf(subnetUuidOfIp, ip);
 188             }
 189         }
 190     }
 191
 192     private static String getRoutingProtocolName(long vrf) {
 193         return Constants.ROUTING_PROTOCOL_NAME_PREFIX + vrf;
 194     }
 195 }