diff options
Diffstat (limited to 'v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/ip/v6/Ipv6AddressCustomizer.java')
-rw-r--r-- | v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/ip/v6/Ipv6AddressCustomizer.java | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/ip/v6/Ipv6AddressCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/ip/v6/Ipv6AddressCustomizer.java new file mode 100644 index 000000000..6984c8df6 --- /dev/null +++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/interfaces/ip/v6/Ipv6AddressCustomizer.java @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2017 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.ip.v6; + +import static com.google.common.base.Preconditions.checkNotNull; + +import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.hc2vpp.v3po.interfaces.ip.IpWriter; +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import javax.annotation.Nonnull; +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.ip.rev140616.interfaces._interface.ipv6.Address; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces._interface.ipv6.AddressKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + + +public class Ipv6AddressCustomizer extends FutureJVppCustomizer + implements ListWriterCustomizer<Address, AddressKey>, IpWriter { + + private static final Logger LOG = LoggerFactory.getLogger(Ipv6AddressCustomizer.class); + + private static final String LINK_LOCAL_START_MASK = "fe08"; + private final NamingContext interfaceContext; + + public Ipv6AddressCustomizer(@Nonnull final FutureJVppCore futureJVppCore, + @Nonnull final NamingContext interfaceContext) { + super(futureJVppCore); + this.interfaceContext = checkNotNull(interfaceContext, "Interface context cannot be null"); + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Address> id, @Nonnull final Address dataAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String interfaceName = id.firstKeyOf(Interface.class).getName(); + final int interfaceIndex = interfaceContext.getIndex(interfaceName, writeContext.getMappingContext()); + + // prevents scenario + // - vpp has been restarted == cleaned state + // - hc tries to restore data, which has link-local address in it + // link layer address is created by vpp(generated) after adding first address, so its present just + // after adding first address, and attempt to override it during init would cause error -1 + if (dataAfter.getIp().getValue().startsWith(LINK_LOCAL_START_MASK)) { + LOG.info("An attempt to rewrite link-local address with {} has been detected,ignoring request", + dataAfter.getIp()); + return; + } + + addDelAddress(getFutureJVpp(), true, id, interfaceIndex, dataAfter.getIp(), + dataAfter.getPrefixLength().byteValue()); + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Address> id, + @Nonnull final Address dataBefore, + @Nonnull final Address dataAfter, @Nonnull final WriteContext writeContext) + throws WriteFailedException { + throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, + new UnsupportedOperationException("Operation not supported")); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Address> id, + @Nonnull final Address dataBefore, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String interfaceName = id.firstKeyOf(Interface.class).getName(); + final int interfaceIndex = interfaceContext.getIndex(interfaceName, writeContext.getMappingContext()); + + addDelAddress(getFutureJVpp(), false, id, interfaceIndex, dataBefore.getIp(), + dataBefore.getPrefixLength().byteValue()); + } + +} |