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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;
import com.google.common.net.InetAddresses;
import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
import io.fd.honeycomb.translate.v3po.util.JvppReplyConsumer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import java.net.InetAddress;
import java.util.concurrent.CompletionStage;
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.Interface;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.ProxyArp;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.openvpp.jvpp.VppBaseCallException;
import org.openvpp.jvpp.core.dto.ProxyArpAddDel;
import org.openvpp.jvpp.core.dto.ProxyArpAddDelReply;
import org.openvpp.jvpp.core.future.FutureJVppCore;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ProxyArpCustomizer extends FutureJVppCustomizer implements WriterCustomizer<ProxyArp>, JvppReplyConsumer {
private static final Logger LOG = LoggerFactory.getLogger(ProxyArpCustomizer.class);
public ProxyArpCustomizer(final FutureJVppCore vppApi) {
super(vppApi);
}
@Override
public void writeCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataAfter,
@Nonnull WriteContext writeContext) throws WriteFailedException {
final String swIfName = id.firstKeyOf(Interface.class).getName();
try {
setProxyArp(id, swIfName, dataAfter, (byte) 1 /* 1 is add */);
} catch (VppBaseCallException e) {
LOG.error("Failed to set Proxy ARP settings: {}, for interface: {}", dataAfter, swIfName);
throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
}
}
@Override
public void updateCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataBefore,
@Nonnull ProxyArp dataAfter, @Nonnull WriteContext writeContext)
throws WriteFailedException.UpdateFailedException {
throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
new UnsupportedOperationException("ARP proxy update is not supported"));
}
@Override
public void deleteCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataBefore,
@Nonnull WriteContext writeContext) throws WriteFailedException {
final String swIfName = id.firstKeyOf(Interface.class).getName();
try {
setProxyArp(id, swIfName, dataBefore, (byte) 0 /* 0 is delete */);
} catch (VppBaseCallException e) {
LOG.debug("Failed to delete Proxy ARP settings: {}, for interface: {}", dataBefore, swIfName);
throw new WriteFailedException.DeleteFailedException(id, e);
}
}
private void setProxyArp(InstanceIdentifier<ProxyArp> id, String swIfName, ProxyArp proxyArp, byte operation)
throws VppBaseCallException, WriteFailedException {
LOG.debug("Setting Proxy ARP settings for interface: {}", swIfName);
final InetAddress srcAddress = InetAddresses.forString(getv4AddressString(proxyArp.getLowAddr()));
final InetAddress dstAddress = InetAddresses.forString(getv4AddressString(proxyArp.getHighAddr()));
final int vrfId = proxyArp.getVrfId().intValue();
final CompletionStage<ProxyArpAddDelReply> proxyArpAddDelReplyCompletionStage =
getFutureJVpp().proxyArpAddDel(getProxyArpConfRequest(operation, srcAddress.getAddress(),
dstAddress.getAddress(), vrfId));
final ProxyArpAddDelReply reply =
getReplyForWrite(proxyArpAddDelReplyCompletionStage.toCompletableFuture(), id);
LOG.debug("Proxy ARP setting applied, with reply context:", reply.context);
}
private static ProxyArpAddDel getProxyArpConfRequest(final byte isAdd, final byte[] lAddr, final byte[] hAddr,
final int vrfId) {
final ProxyArpAddDel proxyArpAddDel = new ProxyArpAddDel();
proxyArpAddDel.isAdd = isAdd;
proxyArpAddDel.lowAddress = lAddr;
proxyArpAddDel.hiAddress = hAddr;
proxyArpAddDel.vrfId = vrfId;
return proxyArpAddDel;
}
private String getv4AddressString(@Nonnull final Ipv4Address addr) {
return addr.getValue();
}
}
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