/*
* Copyright (c) 2016 Cisco Systems, Inc. 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.openflowplugin.openflow.md.core.sal.convertor.match.cases;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.openflowplugin.api.OFConstants;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.ConvertorCase;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.IpConversionUtil;
import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.match.data.MatchResponseConvertorData;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchArbitraryBitMaskBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.opendaylight.ipv6.arbitrary.bitmask.fields.rev160224.Ipv6ArbitraryMask;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.Ipv6SrcCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.entry.value.grouping.match.entry.value.ipv6.src._case.Ipv6Src;
public class OfToSalIpv6SrcCase extends ConvertorCase<Ipv6SrcCase, MatchBuilder, MatchResponseConvertorData> {
public OfToSalIpv6SrcCase() {
super(Ipv6SrcCase.class, true, OFConstants.OFP_VERSION_1_0, OFConstants.OFP_VERSION_1_3);
}
@Override
public Optional<MatchBuilder> process(@Nonnull Ipv6SrcCase source, MatchResponseConvertorData data, ConvertorExecutor convertorExecutor) {
final MatchBuilder matchBuilder = data.getMatchBuilder();
final Ipv6MatchBuilder ipv6MatchBuilder = data.getIpv6MatchBuilder();
final Ipv6MatchArbitraryBitMaskBuilder ipv6MatchArbitraryBitMaskBuilder = data.getIpv6MatchArbitraryBitMaskBuilder();
Ipv6Src ipv6Src = source.getIpv6Src();
if (ipv6Src != null) {
byte[] mask = ipv6Src.getMask();
if (mask != null && IpConversionUtil.isIpv6ArbitraryBitMask(mask)) {
// case where ipv6dst is of type ipv6MatchBuilder and ipv6src is of type ipv6MatchArbitrary.
// Need to convert ipv6dst to ipv6MatchArbitrary.
if (ipv6MatchBuilder.getIpv6Destination() != null) {
Ipv6Prefix ipv6PrefixDestinationAddress = ipv6MatchBuilder.getIpv6Destination();
Ipv6Address ipv6DstAddress = IpConversionUtil.extractIpv6Address(ipv6PrefixDestinationAddress);
Ipv6ArbitraryMask dstIpv6ArbitraryMask = IpConversionUtil.compressedIpv6MaskFormat(
IpConversionUtil.extractIpv6AddressMask(ipv6PrefixDestinationAddress));
setDstIpv6MatchArbitraryBitMaskBuilderFields(ipv6MatchArbitraryBitMaskBuilder,
dstIpv6ArbitraryMask, IpConversionUtil.compressedIpv6AddressFormat(ipv6DstAddress));
}
Ipv6ArbitraryMask srcIpv6ArbitraryMask = IpConversionUtil.compressedIpv6MaskFormat(
IpConversionUtil.createIpv6ArbitraryBitMask(mask));
Ipv6Address stringIpv6SrcAddress = IpConversionUtil.compressedIpv6AddressFormat(ipv6Src.getIpv6Address());
setSrcIpv6MatchArbitraryBitMaskBuilderFields(ipv6MatchArbitraryBitMaskBuilder,
srcIpv6ArbitraryMask, stringIpv6SrcAddress);
matchBuilder.setLayer3Match(ipv6MatchArbitraryBitMaskBuilder.build());
} else if (ipv6MatchArbitraryBitMaskBuilder.getIpv6DestinationAddressNoMask() != null) {
/*
TODO Change comments
Case where destination is of type ipv6MatchArbitraryBitMask already exists in Layer3Match,
source which of type ipv6Match needs to be converted to ipv4MatchArbitraryBitMask.
We convert 1::/32 to 1::/FFFF:FFFF::
example:-
<ipv6-source>1::/32</ipv4-source>
<ipv6-destination-address-no-mask>1::1</ipv6-destination-address-no-mask>
<ipv6-destination-arbitrary-bitmask>FFFF::0001</ipv6-destination-arbitrary-bitmask>
after conversion output example:-
<ipv6-source-address-no-mask>1::</ipv6-source-address-no-mask>
<ipv6-source-arbitrary-bitmask>FFFF:FFFF::</ipv6-source-arbitrary-bitmask>
<ipv6-destination-address-no-mask>1::1</ipv6-destination-address-no-mask>
<ipv6-destination-arbitrary-bitmask>FFFF::0001</ipv6-destination-arbitrary-bitmask>
*/
Ipv6ArbitraryMask srcIpv6ArbitraryMask = IpConversionUtil.compressedIpv6MaskFormat(
IpConversionUtil.createIpv6ArbitraryBitMask(mask));
Ipv6Address stringIpv6SrcAddress = IpConversionUtil.compressedIpv6AddressFormat(ipv6Src.getIpv6Address());
setSrcIpv6MatchArbitraryBitMaskBuilderFields(ipv6MatchArbitraryBitMaskBuilder,
srcIpv6ArbitraryMask, stringIpv6SrcAddress);
matchBuilder.setLayer3Match(ipv6MatchArbitraryBitMaskBuilder.build());
} else {
Ipv6Address stringIpv6SrcAddress = IpConversionUtil.compressedIpv6AddressFormat(ipv6Src.getIpv6Address());
setIpv6MatchBuilderFields(ipv6MatchBuilder, mask, stringIpv6SrcAddress);
matchBuilder.setLayer3Match(ipv6MatchBuilder.build());
}
}
return Optional.of(matchBuilder);
}
private static void setIpv6MatchBuilderFields(final Ipv6MatchBuilder builder, final byte[] mask, final Ipv6Address prefix) {
Ipv6Prefix ipv6Prefix;
if (mask != null) {
ipv6Prefix = IpConversionUtil.createPrefix(prefix, mask);
} else {
ipv6Prefix = IpConversionUtil.createPrefix(prefix);
}
builder.setIpv6Source(ipv6Prefix);
}
private static void setSrcIpv6MatchArbitraryBitMaskBuilderFields(final Ipv6MatchArbitraryBitMaskBuilder builder,
final Ipv6ArbitraryMask mask,
final Ipv6Address ipv6Address) {
if (mask != null) {
builder.setIpv6SourceArbitraryBitmask(mask);
}
builder.setIpv6SourceAddressNoMask(ipv6Address);
}
private static void setDstIpv6MatchArbitraryBitMaskBuilderFields(final Ipv6MatchArbitraryBitMaskBuilder builder,
final Ipv6ArbitraryMask mask,
final Ipv6Address ipv6Address) {
if (mask != null) {
builder.setIpv6DestinationArbitraryBitmask(mask);
}
builder.setIpv6DestinationAddressNoMask(ipv6Address);
}
}