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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.v3po.translate.v3po.interfacesstate;
import io.fd.honeycomb.v3po.translate.Context;
import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
import io.fd.honeycomb.v3po.translate.spi.read.ChildReaderCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.FutureJVppCustomizer;
import io.fd.honeycomb.v3po.translate.v3po.util.NamingContext;
import io.fd.honeycomb.v3po.translate.v3po.utils.V3poUtils;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletionStage;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceStateAugmentationBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.Vxlan;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VxlanBuilder;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.dto.VxlanTunnelDetails;
import org.openvpp.jvpp.dto.VxlanTunnelDetailsReplyDump;
import org.openvpp.jvpp.dto.VxlanTunnelDump;
import org.openvpp.jvpp.future.FutureJVpp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class VxlanCustomizer extends FutureJVppCustomizer
implements ChildReaderCustomizer<Vxlan, VxlanBuilder> {
private static final Logger LOG = LoggerFactory.getLogger(VxlanCustomizer.class);
public static final String DUMPED_VXLANS_CONTEXT_KEY = VxlanCustomizer.class.getName() + "dumpedVxlansDuringGetAllIds";
private NamingContext interfaceContext;
public VxlanCustomizer(@Nonnull final FutureJVpp jvpp,
final NamingContext interfaceContext) {
super(jvpp);
this.interfaceContext = interfaceContext;
}
@Override
public void merge(@Nonnull Builder<? extends DataObject> parentBuilder,
@Nonnull Vxlan readValue) {
((VppInterfaceStateAugmentationBuilder) parentBuilder).setVxlan(readValue);
}
@Nonnull
@Override
public VxlanBuilder getBuilder(
@Nonnull InstanceIdentifier<Vxlan> id) {
return new VxlanBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Vxlan> id,
@Nonnull final VxlanBuilder builder,
@Nonnull final Context ctx) throws ReadFailedException {
final InterfaceKey key = id.firstKeyOf(Interface.class);
// TODO add logging
// FIXME this should take different approach than Tap or Vhost customizers since vxlan dump allows
// to specify interface index, making it possible to dump just a single interface
// However we need to determine the type of current interface somehow to know it is vxlan type and we can perform
// the dump (InterfaceCustomizer can store the type in ctx)
@SuppressWarnings("unchecked")
Map<Integer, VxlanTunnelDetails> mappedVxlans =
(Map<Integer, VxlanTunnelDetails>) ctx.get(DUMPED_VXLANS_CONTEXT_KEY);
if(mappedVxlans == null) {
// Full Vxlan dump has to be performed here, no filter or anything is here to help so at least we cache it
final VxlanTunnelDump request = new VxlanTunnelDump();
request.swIfIndex = -1;
final CompletionStage<VxlanTunnelDetailsReplyDump> swInterfaceVxlanDetailsReplyDumpCompletionStage =
getFutureJVpp().vxlanTunnelDump(request);
final VxlanTunnelDetailsReplyDump reply =
V3poUtils.getReply(swInterfaceVxlanDetailsReplyDumpCompletionStage.toCompletableFuture());
if(null == reply || null == reply.vxlanTunnelDetails) {
mappedVxlans = Collections.emptyMap();
} else {
final List<VxlanTunnelDetails> swInterfaceVxlanDetails = reply.vxlanTunnelDetails;
// Cache interfaces dump in per-tx context to later be used in readCurrentAttributes
mappedVxlans = swInterfaceVxlanDetails.stream()
.collect(Collectors.toMap(t -> t.swIfIndex, swInterfaceDetails -> swInterfaceDetails));
}
ctx.put(DUMPED_VXLANS_CONTEXT_KEY, mappedVxlans);
}
// Relying here that parent InterfaceCustomizer was invoked first to fill in the context with initial ifc mapping
final int index = interfaceContext.getIndex(key.getName());
final VxlanTunnelDetails swInterfaceVxlanDetails = mappedVxlans.get(index);
if(swInterfaceVxlanDetails == null) {
// Not a Vxlan interface type
return;
}
if(swInterfaceVxlanDetails.isIpv6 == 1) {
// FIXME enable ipv6 in the vxlan model
// builder.setDst(new Ipv6Address(parseAddress(swInterfaceVxlanDetails.dstAddress).getHostAddress()));
// builder.setSrc(new Ipv6Address(parseAddress(swInterfaceVxlanDetails.srcAddress).getHostAddress()));
} else {
builder.setDst(new Ipv4Address(parseAddress(Arrays.copyOfRange(swInterfaceVxlanDetails.dstAddress, 0, 4)).getHostAddress()));
builder.setSrc(new Ipv4Address(parseAddress(Arrays.copyOfRange(swInterfaceVxlanDetails.srcAddress, 0, 4)).getHostAddress()));
}
builder.setEncapVrfId((long) swInterfaceVxlanDetails.encapVrfId);
builder.setVni((long) swInterfaceVxlanDetails.vni);
}
private InetAddress parseAddress(final byte[] addr) {
try {
return InetAddress.getByAddress(addr);
} catch (UnknownHostException e) {
throw new IllegalArgumentException("Cannot create InetAddress from " + Arrays.toString(addr), e);
}
}
}
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