gerrit.fd Code Review - hc2vpp.git/blob

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.hc2vpp.routing.write.factory;
  18
  19 import static com.google.common.base.Preconditions.checkNotNull;
  20
  21 import io.fd.hc2vpp.common.translate.util.NamingContext;
  22 import io.fd.hc2vpp.routing.write.factory.base.BasicHopRequestFactory;
  23 import io.fd.hc2vpp.routing.write.trait.RouteRequestProducer;
  24 import io.fd.hc2vpp.vpp.classifier.context.VppClassifierContextManager;
  25 import io.fd.honeycomb.translate.MappingContext;
  26 import io.fd.vpp.jvpp.core.dto.IpAddDelRoute;
  27 import java.util.Optional;
  28 import javax.annotation.Nonnull;
  29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
  31 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.SpecialNextHopGrouping;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.VniReference;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev161214.VppRouteAttributes;
  34
  35 public class SpecialNextHopRequestFactory extends BasicHopRequestFactory
  36         implements RouteRequestProducer {
  37
  38     private SpecialNextHopRequestFactory(final VppClassifierContextManager classifierContextManager,
  39                                          final NamingContext interfaceContext,
  40                                          final NamingContext routingProtocolContext) {
  41         super(classifierContextManager,interfaceContext,routingProtocolContext);
  42     }
  43
  44     public static SpecialNextHopRequestFactory forContexts(
  45             @Nonnull final VppClassifierContextManager classifierContextManager,
  46             @Nonnull final NamingContext interfaceContext,
  47             @Nonnull final NamingContext routingProtocolContext) {
  48         return new SpecialNextHopRequestFactory(classifierContextManager, interfaceContext, routingProtocolContext);
  49     }
  50
  51     public IpAddDelRoute createIpv4SpecialHopRequest(final boolean add,
  52                                                      @Nonnull final String parentProtocolName,
  53                                                      @Nonnull final 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 route,
  54                                                      @Nonnull final MappingContext mappingContext,
  55                                                      @Nonnull final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
  56         checkNotNull(route, "Route cannot be null");
  57         checkNotNull(mappingContext, "Mapping Context cannot be null");
  58         checkNotNull(flagsVariant, "Flags variant cannot be null");
  59
  60         final int parentProtocolTableId = getRoutingProtocolContext().getIndex(parentProtocolName,mappingContext);
  61         final byte secondaryTableId = Optional.ofNullable(route.getVppIpv4Route())
  62                 .map(VppRouteAttributes::getSecondaryVrf)
  63                 .map(VniReference::getValue)
  64                 .map(Long::byteValue)
  65                 .orElse(DEFAULT_VNI);
  66
  67         return resolveFlags(getSpecialHopRequest(add, route.getDestinationPrefix(), (byte) parentProtocolTableId, secondaryTableId), flagsVariant);
  68     }
  69
  70     public IpAddDelRoute createIpv6SpecialHopRequest(final boolean add,
  71                                                      @Nonnull final String parentProtocolName,
  72                                                      @Nonnull final org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.routing.protocols.routing.protocol._static.routes.ipv6.Route route,
  73                                                      @Nonnull final MappingContext mappingContext,
  74                                                      @Nonnull final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
  75
  76         checkNotNull(route, "Route cannot be null");
  77         checkNotNull(mappingContext, "Mapping Context cannot be null");
  78         checkNotNull(flagsVariant, "Flags variant cannot be null");
  79
  80         final int parentProtocolTableId = getRoutingProtocolContext().getIndex(parentProtocolName,mappingContext);
  81         final byte secondaryTableId = Optional.ofNullable(route.getVppIpv6Route())
  82                 .map(VppRouteAttributes::getSecondaryVrf)
  83                 .map(VniReference::getValue)
  84                 .map(Long::byteValue)
  85                 .orElse(DEFAULT_VNI);
  86
  87         return resolveFlags(getSpecialHopRequest(add, route.getDestinationPrefix(), (byte) parentProtocolTableId, secondaryTableId), flagsVariant);
  88     }
  89
  90     private IpAddDelRoute getSpecialHopRequest(final boolean isAdd, @Nonnull final Ipv6Prefix destinationAddress,
  91                                                final byte primaryTableId, final byte secondaryTableId) {
  92
  93         return flaglessAddDelRouteRequest(booleanToByte(isAdd), 0, null, DEFAULT_HOP_WEIGHT, BYTE_TRUE,
  94                 ipv6AddressPrefixToArray(destinationAddress), extractPrefix(destinationAddress.getValue()), BYTE_FALSE,
  95                 primaryTableId, secondaryTableId, DEFAULT_CLASSIFY_TABLE_INDEX, BYTE_FALSE);
  96     }
  97
  98     private IpAddDelRoute getSpecialHopRequest(final boolean isAdd, @Nonnull final Ipv4Prefix destinationAddress,
  99                                                final byte primaryTableId, final byte secondaryTableId) {
 100         return flaglessAddDelRouteRequest(booleanToByte(isAdd), 0, null, DEFAULT_HOP_WEIGHT, BYTE_FALSE,
 101                 ipv4AddressPrefixToArray(destinationAddress), extractPrefix(destinationAddress.getValue()), BYTE_FALSE,
 102                 primaryTableId, secondaryTableId, DEFAULT_CLASSIFY_TABLE_INDEX, BYTE_FALSE);
 103     }
 104
 105     private IpAddDelRoute resolveFlags(IpAddDelRoute request,
 106                                        final SpecialNextHopGrouping.SpecialNextHop flagsVariant) {
 107         switch (flagsVariant) {
 108             case Blackhole:
 109                 return resolveAsBlackholeVariant(request);
 110             case Unreachable:
 111                 return resolveAsUnreachableVariant(request);
 112             case Prohibit:
 113                 return resolveAsProhibitedVariant(request);
 114             case Receive:
 115                 return resolveAsReceiveVariant(request);
 116             default:
 117                 throw new IllegalArgumentException("Unsupported type");
 118         }
 119     }
 120
 121     private IpAddDelRoute resolveAsBlackholeVariant(IpAddDelRoute request) {
 122         return bindFlags(request, true, false, false, false);
 123     }
 124
 125     private IpAddDelRoute resolveAsReceiveVariant(IpAddDelRoute request) {
 126         return bindFlags(request, false, true, false, false);
 127     }
 128
 129     private IpAddDelRoute resolveAsUnreachableVariant(IpAddDelRoute request) {
 130         return bindFlags(request, false, false, true, false);
 131     }
 132
 133     private IpAddDelRoute resolveAsProhibitedVariant(IpAddDelRoute request) {
 134         return bindFlags(request, false, false, false, true);
 135     }
 136
 137     private IpAddDelRoute bindFlags(IpAddDelRoute request, final boolean isDrop, final boolean isReceive,
 138                                     final boolean isUnreachable, final boolean isProhibited) {
 139         request.isDrop = booleanToByte(isDrop);
 140         request.isLocal = booleanToByte(isReceive);
 141         request.isUnreach = booleanToByte(isUnreachable);
 142         request.isProhibit = booleanToByte(isProhibited);
 143
 144         return request;
 145     }
 146 }