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 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  12 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.HostRelatedInfoContainer;
  13 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.PortInterfaces;
  14 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.PortRouteState;
  15 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.VrfHolder;
  16 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.info.container.states.VrfState;
  17 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.util.Constants;
  18 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.GbpNetconfTransaction;
  19 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.VppIidFactory;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.StaticRoutes1;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.Ipv4;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.Ipv4Builder;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.Route;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.RouteBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.RouteKey;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv4.route.next.hop.options.SimpleNextHopBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.Static;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocol;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolKey;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol.StaticRoutes;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.RoutingProtocolVppAttr;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.RoutingProtocolVppAttrBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.VniReference;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.routing.routing.instance.routing.protocols.routing.protocol.VppProtocolAttributesBuilder;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 import java.util.Arrays;
  43 import java.util.List;
  44
  45 /**
  46  * Created by Shakib Ahmed on 5/4/17.
  47  */
  48 public class StaticRoutingHelper {
  49     private static final Logger LOG = LoggerFactory.getLogger(StaticRoutingHelper.class);
  50
  51     private HostRelatedInfoContainer hostRelatedInfoContainer = HostRelatedInfoContainer.getInstance();
  52
  53     public synchronized boolean addRoutingProtocolForVrf(DataBroker vppDataBroker,
  54                                                          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(vppDataBroker,
  73                 iid, builder.build(), GbpNetconfTransaction.RETRY_COUNT)) {
  74             vrfHolderOfHost.initializeVrfState(vrfId, routingProtocolName);
  75             return true;
  76         }
  77
  78         return false;
  79     }
  80
  81     public synchronized boolean addSingleStaticRouteInRoutingProtocol(DataBroker vppDataBroker,
  82                                                                       String hostName,
  83                                                                       long portVrfId,
  84                                                                       String portSubnetUuid,
  85                                                                       Ipv4Address nextHopAddress,
  86                                                                       Ipv4Prefix ipPrefix,
  87                                                                       String outgoingInterface) {
  88         RouteBuilder builder = new RouteBuilder();
  89
  90         VrfState hostVrfStateForPortVrf = hostRelatedInfoContainer
  91                                                     .getVrfStateOfHost(hostName)
  92                                                     .getVrfState(portVrfId);
  93
  94         PortInterfaces hostPortInterfaces = hostRelatedInfoContainer
  95                                                     .getPortInterfaceStateOfHost(hostName);
  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         builder.setNextHopOptions(new SimpleNextHopBuilder()
 105                                         .setNextHop(nextHopAddress)
 106                                         .setOutgoingInterface(outgoingInterface)
 107                                         .build());
 108
 109         List<Route> routes = Arrays.asList(builder.build());
 110
 111         Ipv4 ipv4Route = new Ipv4Builder().setRoute(routes).build();
 112
 113         InstanceIdentifier<Ipv4> iid = VppIidFactory
 114                 .getRoutingInstanceIid(new RoutingProtocolKey(hostVrfStateForPortVrf.getProtocolName()))
 115                 .child(StaticRoutes.class)
 116                 .augmentation(StaticRoutes1.class)
 117                 .child(Ipv4.class);
 118
 119         if (GbpNetconfTransaction
 120                 .netconfSyncedMerge(vppDataBroker, iid, ipv4Route,
 121                         GbpNetconfTransaction.RETRY_COUNT)) {
 122             hostVrfStateForPortVrf.addNewPortIpInVrf(portSubnetUuid, nextHopAddress);
 123             hostPortInterfaces.addRouteToPortInterface(outgoingInterface, portSubnetUuid,
 124                     nextHopAddress, routeId);
 125             return true;
 126         }
 127
 128         return false;
 129     }
 130
 131     public synchronized boolean deleteSingleStaticRouteFromRoutingProtocol(DataBroker vppDataBroker,
 132                                                                            String hostName,
 133                                                                            long vrfId,
 134                                                                            String outgoingInterfaceName,
 135                                                                            Long routeId) {
 136         VrfState vrfState = hostRelatedInfoContainer.getVrfStateOfHost(hostName).getVrfState(vrfId);
 137
 138         Preconditions.checkNotNull(vrfState, "Vrf has not been initialized");
 139
 140         InstanceIdentifier<Route> iid = VppIidFactory
 141                 .getRoutingInstanceIid(new RoutingProtocolKey(vrfState.getProtocolName()))
 142                 .child(StaticRoutes.class)
 143                 .augmentation(StaticRoutes1.class)
 144                 .child(Ipv4.class)
 145                 .child(Route.class, new RouteKey(routeId));
 146
 147         if (!GbpNetconfTransaction.netconfSyncedDelete(vppDataBroker, iid, GbpNetconfTransaction.RETRY_COUNT)) {
 148             LOG.warn("Route delete failed for interface {} from {}", outgoingInterfaceName, hostName);
 149             return false;
 150         }
 151         return true;
 152     }
 153
 154     public synchronized boolean deleteAllRoutesThroughInterface(DataBroker vppDataBroker,
 155                                                                 String hostName,
 156                                                                 String outgoingInterfaceName) {
 157         PortRouteState portRouteState = hostRelatedInfoContainer
 158                                             .getPortInterfaceStateOfHost(hostName)
 159                                             .getPortRouteState(outgoingInterfaceName);
 160
 161         long vrfId = hostRelatedInfoContainer.getPortInterfaceStateOfHost(hostName)
 162                 .getInterfaceVrfId(outgoingInterfaceName);
 163
 164         List<Ipv4Address> ipThroughInterface = portRouteState.getAllIps();
 165
 166         boolean allOk = true;
 167
 168         for (Ipv4Address ip : ipThroughInterface) {
 169             long routeId = portRouteState.getRouteIdOfIp(ip);
 170             String subnetUuidOfIp = portRouteState.getSubnetUuidOfIp(ip);
 171             boolean ok = deleteSingleStaticRouteFromRoutingProtocol(vppDataBroker, hostName, vrfId,
 172                     outgoingInterfaceName, routeId);
 173
 174             if (ok) {
 175                 portRouteState.removeIp(ip);
 176                 hostRelatedInfoContainer
 177                         .getVrfStateOfHost(hostName)
 178                         .getVrfState(vrfId)
 179                         .removePortIpFromVrf(subnetUuidOfIp, ip);
 180             }
 181         }
 182
 183         return allOk;
 184     }
 185
 186     public static String getRoutingProtocolName(long vrf) {
 187         return Constants.ROUTING_PROTOCOL_NAME_PREFIX + vrf;
 188     }
 189 }