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/*
* Copyright (c) 2018 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.hc2vpp.v3po.interfaces;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import io.fd.hc2vpp.common.translate.util.AbstractInterfaceTypeCustomizer;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.hc2vpp.common.translate.util.MacTranslator;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.AfPacketCreate;
import io.fd.vpp.jvpp.core.dto.AfPacketCreateReply;
import io.fd.vpp.jvpp.core.dto.AfPacketDelete;
import io.fd.vpp.jvpp.core.dto.AfPacketDeleteReply;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.nio.charset.StandardCharsets;
import java.util.concurrent.CompletionStage;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev181008.interfaces._interface.AfPacket;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AfPacketCustomizer extends AbstractInterfaceTypeCustomizer<AfPacket>
implements MacTranslator, JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(AfPacketCustomizer.class);
private final NamingContext interfaceContext;
public AfPacketCustomizer(@Nonnull final FutureJVppCore vppApi, @Nonnull final NamingContext interfaceContext) {
super(vppApi);
this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null");
}
@Override
protected Class<? extends InterfaceType> getExpectedInterfaceType() {
return org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.v3po.rev181008.AfPacket.class;
}
@Override
protected final void writeInterface(@Nonnull final InstanceIdentifier<AfPacket> id,
@Nonnull final AfPacket dataAfter, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
final String swIfName = id.firstKeyOf(Interface.class).getName();
final int swIfIndex = createAfPacketIfc(id, swIfName, dataAfter);
// Add new interface to our interface context
interfaceContext.addName(swIfIndex, swIfName, writeContext.getMappingContext());
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<AfPacket> id,
@Nonnull final AfPacket dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
final String swIfName = id.firstKeyOf(Interface.class).getName();
deleteAfPacketIfc(id, swIfName, dataBefore);
// Remove interface from interface context
interfaceContext.removeName(swIfName, writeContext.getMappingContext());
}
private int createAfPacketIfc(final InstanceIdentifier<AfPacket> id, final String swIfName, final AfPacket afPacket)
throws WriteFailedException {
LOG.debug("Creating af_packet interface {}: {}", swIfName, afPacket);
final CompletionStage<AfPacketCreateReply> createAfPacketIfReplyCompletionStage =
getFutureJVpp().afPacketCreate(getCreateRequest(afPacket));
final AfPacketCreateReply reply =
getReplyForCreate(createAfPacketIfReplyCompletionStage.toCompletableFuture(), id, afPacket);
LOG.debug("Af_packet interface {} created successfully: {}", swIfName, afPacket);
return reply.swIfIndex;
}
private AfPacketCreate getCreateRequest(@Nonnull final AfPacket afPacket) {
final AfPacketCreate request = new AfPacketCreate();
checkArgument(afPacket.getHostInterfaceName() != null,
"host-interface-name is mandatory for af-packet interface");
request.hostIfName = afPacket.getHostInterfaceName().getBytes(StandardCharsets.UTF_8);
checkArgument(request.hostIfName.length <= 64,
"Interface name for af_packet interface should not be longer than 64 bytes, but was %s",
request.hostIfName.length);
final PhysAddress mac = afPacket.getMac();
if (mac == null) {
request.useRandomHwAddr = 1;
request.hwAddr = new byte[6];
} else {
request.useRandomHwAddr = 0;
request.hwAddr = parseMac(mac.getValue());
}
return request;
}
private void deleteAfPacketIfc(final InstanceIdentifier<AfPacket> id, final String swIfName,
final AfPacket afPacket) throws WriteFailedException {
LOG.debug("Deleting af_packet interface {}: {}", swIfName, afPacket);
final CompletionStage<AfPacketDeleteReply> deleteAfPacketIfReplyCompletionStage =
getFutureJVpp().afPacketDelete(getDeleteRequest(afPacket));
getReplyForDelete(deleteAfPacketIfReplyCompletionStage.toCompletableFuture(), id);
LOG.debug("Af_packet interface {} deleted successfully: {}", swIfName, afPacket);
}
private AfPacketDelete getDeleteRequest(@Nonnull final AfPacket afPacket) {
final AfPacketDelete request = new AfPacketDelete();
request.hostIfName = afPacket.getHostInterfaceName().getBytes(StandardCharsets.UTF_8);
return request;
}
}
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