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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
  11 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.mappers.HostVrfRoutingInformationMapper;
  12 import org.opendaylight.groupbasedpolicy.renderer.vpp.lisp.mappers.InterfaceNameToRouteInfoMapper;
  13 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.GbpNetconfTransaction;
  14 import org.opendaylight.groupbasedpolicy.renderer.vpp.util.VppIidFactory;
  15 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv4.unicast.routing.rev140524.StaticRoutes1;
  18 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;
  19 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;
  20 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;
  21 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;
  22 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;
  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.route.next.hop.options.SimpleNextHopBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.Static;
  25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocol;
  26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.RoutingProtocolKey;
  28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.routing.protocols.routing.protocol.StaticRoutes;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.RoutingProtocolVppAttr;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.RoutingProtocolVppAttrBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.VniReference;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.routing.routing.instance.routing.protocols.routing.protocol.VppProtocolAttributesBuilder;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 import java.util.Arrays;
  38 import java.util.List;
  39
  40 /**
  41  * Created by Shakib Ahmed on 5/4/17.
  42  */
  43 public class StaticRoutingHelper {
  44     private static final Logger LOG = LoggerFactory.getLogger(StaticRoutingHelper.class);
  45
  46     private static final String ROUTING_PROTOCOL_NAME_PREFIX = "static-routing-";
  47     private static final String DEFAULT_DESCRIPTION = "Static route added from GBP for flat L3 overlay";
  48
  49     private HostVrfRoutingInformationMapper hostVrfInfo = HostVrfRoutingInformationMapper.getInstance();
  50
  51     private InterfaceNameToRouteInfoMapper interfaceNameToRouteInfoMapper;
  52
  53     public StaticRoutingHelper() {
  54         interfaceNameToRouteInfoMapper = new InterfaceNameToRouteInfoMapper();
  55     }
  56
  57     public synchronized boolean addRoutingProtocolForVrf(DataBroker vppDataBroker,
  58                                          String hostId,
  59                                          long vrf) {
  60         String routingProtocolName = getRoutingProtocolName(vrf);
  61         RoutingProtocolBuilder builder = new RoutingProtocolBuilder();
  62         builder.setKey(new RoutingProtocolKey(routingProtocolName));
  63         builder.setName(routingProtocolName);
  64         builder.setType(Static.class);
  65         builder.setDescription(DEFAULT_DESCRIPTION);
  66         RoutingProtocolVppAttrBuilder vppAugmentationBuilder = new RoutingProtocolVppAttrBuilder();
  67
  68         vppAugmentationBuilder.
  69                 setVppProtocolAttributes(new VppProtocolAttributesBuilder()
  70                                                 .setPrimaryVrf(new VniReference(vrf)).build());
  71
  72         builder.addAugmentation(RoutingProtocolVppAttr.class, vppAugmentationBuilder.build());
  73
  74         InstanceIdentifier<RoutingProtocol> iid = VppIidFactory
  75                 .getRoutingInstanceIid(builder.getKey());
  76         if (GbpNetconfTransaction.netconfSyncedWrite(vppDataBroker,
  77                 iid, builder.build(), GbpNetconfTransaction.RETRY_COUNT)) {
  78             RoutingInfo info = new RoutingInfo();
  79             info.setProtocolName(routingProtocolName);
  80             hostVrfInfo.addRoutingVrfToHost(hostId, vrf, info);
  81             return true;
  82         }
  83
  84         return false;
  85     }
  86
  87     public boolean endPointRoutingExists(String interfaceName, Ipv4Address ip) {
  88         return interfaceNameToRouteInfoMapper.routeAlreadyExists(interfaceName, ip);
  89     }
  90
  91     public synchronized boolean addSingleStaticRouteInRoutingProtocol(DataBroker vppDataBroker,
  92                                                       String hostId,
  93                                                       long vrf,
  94                                                       Ipv4Address nextHopAddress,
  95                                                       Ipv4Prefix ipPrefix,
  96                                                       String outgoingInterface) {
  97         RouteBuilder builder = new RouteBuilder();
  98
  99         Long routingId = hostVrfInfo.getEndPointCountInVrf(hostId, vrf);
 100
 101         builder.setId(routingId);
 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(hostVrfInfo.getProtocolName(hostId, vrf)))
 115                 .child(StaticRoutes.class)
 116                 .augmentation(StaticRoutes1.class)
 117                 .child(Ipv4.class);
 118
 119         if (GbpNetconfTransaction.netconfSyncedMerge(vppDataBroker, iid, ipv4Route, GbpNetconfTransaction.RETRY_COUNT)) {
 120             interfaceNameToRouteInfoMapper.addRouteForInterface(outgoingInterface, nextHopAddress, routingId);
 121             hostVrfInfo.addStaticRoute(hostId, vrf);
 122             return true;
 123         }
 124
 125         return false;
 126     }
 127
 128     public synchronized boolean deleteSingleStaticRouteFromRoutingProtocol(DataBroker vppDataBroker,
 129                                                                         String hostId,
 130                                                                         long vrf,
 131                                                                         String outgoingInterface) {
 132         List<Long> allRoutingIdsForPort = interfaceNameToRouteInfoMapper.getRoutingIdsAssociatedWithInterface(outgoingInterface);
 133
 134         boolean allOk = true;
 135
 136         for (Long routingId : allRoutingIdsForPort) {
 137             InstanceIdentifier<Route> iid = VppIidFactory.
 138                     getRoutingInstanceIid(new RoutingProtocolKey(hostVrfInfo.getProtocolName(hostId, vrf)))
 139                     .child(StaticRoutes.class)
 140                     .augmentation(StaticRoutes1.class)
 141                     .child(Ipv4.class)
 142                     .child(Route.class, new RouteKey(routingId));
 143             if (!GbpNetconfTransaction.netconfSyncedDelete(vppDataBroker, iid, GbpNetconfTransaction.RETRY_COUNT)) {
 144                 LOG.warn("Route delete failed for interface {} from {}", outgoingInterface, hostId);
 145                 allOk = false;
 146             }
 147         }
 148
 149         interfaceNameToRouteInfoMapper.clearStaticRoutesForInterface(outgoingInterface);
 150         return allOk;
 151     }
 152
 153     public static String getRoutingProtocolName(long vrf) {
 154         return ROUTING_PROTOCOL_NAME_PREFIX + vrf;
 155     }
 156 }