openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/convertor/match/cases/OfToSalIpv6ExthdrCase.java

   1 /*
   2  * Copyright (c) 2016 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.openflowplugin.openflow.md.core.sal.convertor.match.cases;
  10
  11 import java.util.Optional;
  12 import org.eclipse.jdt.annotation.NonNull;
  13 import org.opendaylight.openflowplugin.api.OFConstants;
  14 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
  15 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.ConvertorCase;
  16 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.MatchConvertorUtil;
  17 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.data.MatchResponseConvertorData;
  18 import org.opendaylight.openflowplugin.openflow.md.util.ByteUtil;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.ipv6.match.fields.Ipv6ExtHeaderBuilder;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.Ipv6ExthdrFlags;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.Ipv6ExthdrCase;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.ipv6.exthdr._case.Ipv6Exthdr;
  25
  26 public class OfToSalIpv6ExthdrCase extends ConvertorCase<Ipv6ExthdrCase, MatchBuilder, MatchResponseConvertorData> {
  27     public OfToSalIpv6ExthdrCase() {
  28         super(Ipv6ExthdrCase.class, true, OFConstants.OFP_VERSION_1_0, OFConstants.OFP_VERSION_1_3);
  29     }
  30
  31     @Override
  32     public Optional<MatchBuilder> process(@NonNull Ipv6ExthdrCase source, MatchResponseConvertorData data,
  33             ConvertorExecutor convertorExecutor) {
  34         final MatchBuilder matchBuilder = data.getMatchBuilder();
  35         final Ipv6MatchBuilder ipv6MatchBuilder = data.getIpv6MatchBuilder();
  36
  37         Ipv6Exthdr ipv6Exthdr = source.getIpv6Exthdr();
  38
  39         if (ipv6Exthdr != null) {
  40             Ipv6ExtHeaderBuilder ipv6ExtHeaderBuilder = new Ipv6ExtHeaderBuilder();
  41             Ipv6ExthdrFlags headerFlags = ipv6Exthdr.getPseudoField();
  42             Integer bitmap = MatchConvertorUtil.ipv6ExthdrFlagsToInt(headerFlags);
  43             ipv6ExtHeaderBuilder.setIpv6Exthdr(bitmap);
  44             byte[] mask = ipv6Exthdr.getMask();
  45
  46             if (mask != null) {
  47                 ipv6ExtHeaderBuilder.setIpv6ExthdrMask(ByteUtil.bytesToUnsignedShort(mask));
  48             }
  49
  50             ipv6MatchBuilder.setIpv6ExtHeader(ipv6ExtHeaderBuilder.build());
  51             matchBuilder.setLayer3Match(ipv6MatchBuilder.build());
  52         }
  53
  54         return Optional.of(matchBuilder);
  55     }
  56 }