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