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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fd.honeycomb.translate.v3po.interfaces.acl.common;
import com.google.common.annotations.VisibleForTesting;
import io.fd.vpp.jvpp.core.dto.ClassifyAddDelSession;
import io.fd.vpp.jvpp.core.dto.ClassifyAddDelTable;
import java.util.Collections;
import java.util.List;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.actions.PacketHandling;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.matches.ace.type.AceEth;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.acl.rev161214.InterfaceMode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class AceEthWriter implements AceWriter<AceEth>, AclTranslator, L2AclTranslator {
@VisibleForTesting
static final int MATCH_N_VECTORS = 1;
private static final Logger LOG = LoggerFactory.getLogger(AceEthWriter.class);
@Override
public ClassifyAddDelTable createTable(@Nonnull final AceEth aceEth,
@Nullable final InterfaceMode mode,
final int nextTableIndex,
final int vlanTags) {
final ClassifyAddDelTable request = createTable(nextTableIndex);
request.mask = new byte[16];
boolean aceIsEmpty =
destinationMacAddressMask(aceEth.getDestinationMacAddressMask(), aceEth.getDestinationMacAddress(),
request);
aceIsEmpty &=
sourceMacAddressMask(aceEth.getSourceMacAddressMask(), aceEth.getSourceMacAddress(), request);
if (aceIsEmpty) {
throw new IllegalArgumentException(
String.format("Ace %s does not define packet field match values", aceEth.toString()));
}
request.skipNVectors = 0;
request.matchNVectors = MATCH_N_VECTORS;
LOG.debug("ACE rule={} translated to table={}.", aceEth, request);
return request;
}
@Override
public List<ClassifyAddDelSession> createSession(@Nonnull final PacketHandling action,
@Nonnull final AceEth aceEth,
@Nullable final InterfaceMode mode,
final int tableIndex,
final int vlanTags) {
final ClassifyAddDelSession request = createSession(action, tableIndex);
request.match = new byte[16];
boolean noMatch = destinationMacAddressMatch(aceEth.getDestinationMacAddress(), request);
noMatch &= sourceMacAddressMatch(aceEth.getSourceMacAddress(), request);
if (noMatch) {
throw new IllegalArgumentException(
String.format("Ace %s does not define neither source nor destination MAC address",
aceEth.toString()));
}
LOG.debug("ACE action={}, rule={} translated to session={}.", action, aceEth, request);
return Collections.singletonList(request);
}
}
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