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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.hc2vpp.v3po.interfaces;
import com.google.common.net.InetAddresses;
import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.ProxyArpAddDel;
import io.fd.vpp.jvpp.core.dto.ProxyArpAddDelReply;
import io.fd.vpp.jvpp.core.dto.ProxyArpIntfcEnableDisable;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.net.InetAddress;
import java.util.concurrent.Future;
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.rev161214.interfaces._interface.ProxyArp;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
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);
private final NamingContext interfaceContext;
public ProxyArpCustomizer(final FutureJVppCore vppApi, final NamingContext interfaceContext) {
super(vppApi);
this.interfaceContext = interfaceContext;
}
@Override
public void writeCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataAfter,
@Nonnull WriteContext writeContext) throws WriteFailedException {
final String swIfName = id.firstKeyOf(Interface.class).getName();
final int swIfIndex = interfaceContext.getIndex(swIfName, writeContext.getMappingContext());
createProxyArp(getProxyArpRequestFuture(id, swIfName, dataAfter, (byte) 1 /* 1 is add */), id, dataAfter);
enableProxyArp(swIfName, swIfIndex, id);
}
@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();
final int swIfIndex = interfaceContext.getIndex(swIfName, writeContext.getMappingContext());
deleteProxyArp(getProxyArpRequestFuture(id, swIfName, dataBefore, (byte) 0 /* 0 is delete */), id);
disableProxyArp(swIfName, swIfIndex, id);
}
private Future<ProxyArpAddDelReply> getProxyArpRequestFuture(InstanceIdentifier<ProxyArp> id, String swIfName,
ProxyArp proxyArp, byte operation)
throws 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();
return getFutureJVpp().proxyArpAddDel(
getProxyArpConfRequest(operation, srcAddress.getAddress(), dstAddress.getAddress(), vrfId))
.toCompletableFuture();
}
private void createProxyArp(final Future<ProxyArpAddDelReply> future, final InstanceIdentifier<ProxyArp> identifier,
final ProxyArp data)
throws WriteFailedException {
final ProxyArpAddDelReply reply = getReplyForCreate(future, identifier, data);
LOG.debug("Proxy ARP setting create successful, with reply context:", reply.context);
}
private void deleteProxyArp(final Future<ProxyArpAddDelReply> future, final InstanceIdentifier<ProxyArp> identifier)
throws WriteFailedException {
final ProxyArpAddDelReply reply = getReplyForDelete(future, identifier);
LOG.debug("Proxy ARP setting delete successful, 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();
}
private void enableProxyArp(final String swIfName, final int swIfIndex,
final InstanceIdentifier<ProxyArp> identifier)
throws WriteFailedException {
final ProxyArpIntfcEnableDisable request = new ProxyArpIntfcEnableDisable();
request.swIfIndex = swIfIndex;
request.enableDisable = 1;
getReplyForWrite(getFutureJVpp().proxyArpIntfcEnableDisable(request).toCompletableFuture(), identifier);
LOG.debug("Proxy ARP was successfully enabled on interface {} (id={})", swIfName, swIfIndex);
}
private void disableProxyArp(final String swIfName, final int swIfIndex,
final InstanceIdentifier<ProxyArp> identifier)
throws WriteFailedException {
final ProxyArpIntfcEnableDisable request = new ProxyArpIntfcEnableDisable();
request.swIfIndex = swIfIndex;
request.enableDisable = 0;
getReplyForDelete(getFutureJVpp().proxyArpIntfcEnableDisable(request).toCompletableFuture(), identifier);
LOG.debug("Proxy ARP was successfully disabled on interface {} (id={})", swIfName, swIfIndex);
}
}
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