/*
* Copyright (c) 2013 Pantheon Technologies s.r.o. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowjava.protocol.impl.deserialization.match;
import io.netty.buffer.ByteBuf;
import org.opendaylight.openflowjava.protocol.api.extensibility.OFDeserializer;
import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.Ipv6ExthdrFlags;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.Ipv6Exthdr;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.MatchField;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OpenflowBasicClass;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.OxmClassBase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntry;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entries.grouping.MatchEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.Ipv6ExthdrCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.ipv6.exthdr._case.Ipv6ExthdrBuilder;
/**
* @author michal.polkorab
*
*/
public class OxmIpv6ExtHdrDeserializer extends AbstractOxmMatchEntryDeserializer
implements OFDeserializer<MatchEntry> {
@Override
public MatchEntry deserialize(ByteBuf input) {
MatchEntryBuilder builder = processHeader(getOxmClass(), getOxmField(), input);
addIpv6ExtHdrValue(input, builder);
return builder.build();
}
private static void addIpv6ExtHdrValue(ByteBuf input, MatchEntryBuilder builder) {
Ipv6ExthdrCaseBuilder caseBuilder = new Ipv6ExthdrCaseBuilder();
Ipv6ExthdrBuilder extHdrBuilder = new Ipv6ExthdrBuilder();
extHdrBuilder.setPseudoField(convertPseudofields(input));
if (builder.isHasMask()) {
extHdrBuilder.setMask(OxmDeserializerHelper
.convertMask(input, EncodeConstants.SIZE_OF_SHORT_IN_BYTES));
}
caseBuilder.setIpv6Exthdr(extHdrBuilder.build());
builder.setMatchEntryValue(caseBuilder.build());
}
private static Ipv6ExthdrFlags convertPseudofields(ByteBuf input) {
int bitmap = input.readUnsignedShort();
final Boolean nonext = ((bitmap) & (1<<0)) != 0;
final Boolean esp = ((bitmap) & (1<<1)) != 0;
final Boolean auth = ((bitmap) & (1<<2)) != 0;
final Boolean dest = ((bitmap) & (1<<3)) != 0;
final Boolean frag = ((bitmap) & (1<<4)) != 0;
final Boolean router = ((bitmap) & (1<<5)) != 0;
final Boolean hop = ((bitmap) & (1<<6)) != 0;
final Boolean unrep = ((bitmap) & (1<<7)) != 0;
final Boolean unseq = ((bitmap) & (1<<8)) != 0;
return new Ipv6ExthdrFlags(auth, dest, esp, frag, hop, nonext, router, unrep, unseq);
}
@Override
protected Class<? extends MatchField> getOxmField() {
return Ipv6Exthdr.class;
}
@Override
protected Class<? extends OxmClassBase> getOxmClass() {
return OpenflowBasicClass.class;
}
}