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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.nat.read;
import io.fd.honeycomb.nat.util.MappingEntryContext;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.Initialized;
import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer;
import io.fd.honeycomb.translate.util.RWUtils;
import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
import io.fd.honeycomb.translate.vpp.util.Ipv4Translator;
import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
import io.fd.vpp.jvpp.snat.dto.SnatStaticMappingDetails;
import io.fd.vpp.jvpp.snat.dto.SnatStaticMappingDetailsReplyDump;
import io.fd.vpp.jvpp.snat.dto.SnatStaticMappingDump;
import io.fd.vpp.jvpp.snat.future.FutureJVppSnatFacade;
import java.util.List;
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.IpAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.PortNumber;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.mapping.entry.ExternalSrcPortBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.mapping.entry.InternalSrcPortBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.MappingTable;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstance;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.nat.instance.MappingTableBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.nat.instance.mapping.table.MappingEntry;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.nat.instance.mapping.table.MappingEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.nat.instance.mapping.table.MappingEntryKey;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.port.number.port.type.SinglePortNumberBuilder;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
final class MappingEntryCustomizer implements Ipv4Translator,
InitializingListReaderCustomizer<MappingEntry, MappingEntryKey, MappingEntryBuilder> {
private static final Logger LOG = LoggerFactory.getLogger(MappingEntryCustomizer.class);
private final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager;
private final MappingEntryContext mappingEntryContext;
MappingEntryCustomizer(
final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager,
final MappingEntryContext mappingEntryContext) {
this.dumpCacheManager = dumpCacheManager;
this.mappingEntryContext = mappingEntryContext;
}
@Nonnull
@Override
public MappingEntryBuilder getBuilder(@Nonnull final InstanceIdentifier<MappingEntry> id) {
return new MappingEntryBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<MappingEntry> id,
@Nonnull final MappingEntryBuilder builder, @Nonnull final ReadContext ctx)
throws ReadFailedException {
LOG.trace("Reading current attributes for mapping-entry: {}", id);
final int idx = id.firstKeyOf(MappingEntry.class).getIndex().intValue();
final int natInstanceId = id.firstKeyOf(NatInstance.class).getId().intValue();
final List<SnatStaticMappingDetails> details =
dumpCacheManager.getDump(id, ctx.getModificationCache(), null)
.or(new SnatStaticMappingDetailsReplyDump()).snatStaticMappingDetails;
final SnatStaticMappingDetails snatStaticMappingDetails =
mappingEntryContext.findDetails(details, natInstanceId, idx, ctx.getMappingContext());
builder.setIndex((long) idx);
builder.setType(
org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.MappingEntry.Type.Static);
// Snat only supports ipv4 for now
builder.setExternalSrcAddress(arrayToIpv4AddressNoZoneReversed(snatStaticMappingDetails.externalIpAddress));
builder.setInternalSrcAddress(
new IpAddress(arrayToIpv4AddressNoZoneReversed(snatStaticMappingDetails.localIpAddress)));
if (snatStaticMappingDetails.addrOnly == 0) {
builder.setExternalSrcPort(new ExternalSrcPortBuilder()
.setPortType(new SinglePortNumberBuilder().setSinglePortNumber(new PortNumber(
(int) snatStaticMappingDetails.externalPort))
.build())
.build());
builder.setInternalSrcPort(new InternalSrcPortBuilder()
.setPortType(new SinglePortNumberBuilder().setSinglePortNumber(new PortNumber(
(int) snatStaticMappingDetails.localPort))
.build())
.build());
}
LOG.trace("Mapping-entry read as: {}", builder);
}
@Nonnull
@Override
public List<MappingEntryKey> getAllIds(@Nonnull final InstanceIdentifier<MappingEntry> id,
@Nonnull final ReadContext context) throws ReadFailedException {
final Long natInstanceId = id.firstKeyOf(NatInstance.class).getId();
LOG.trace("Listing IDs for all mapping-entries within nat-instance(vrf):{}", natInstanceId);
final List<MappingEntryKey> entryKeys =
dumpCacheManager.getDump(id, context.getModificationCache(), null)
.or(new SnatStaticMappingDetailsReplyDump()).snatStaticMappingDetails.stream()
.filter(detail -> natInstanceId == detail.vrfId)
.map(detail -> mappingEntryContext
.getStoredOrArtificialIndex(natInstanceId, detail, context.getMappingContext()))
.map(MappingEntryKey::new)
.collect(Collectors.toList());
LOG.debug("List of mapping-entry keys within nat-instance(vrf):{} : {}", natInstanceId, entryKeys);
return entryKeys;
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> builder,
@Nonnull final List<MappingEntry> readData) {
((MappingTableBuilder) builder).setMappingEntry(readData);
}
@Override
public Initialized<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.mapping.table.MappingEntry> init(@Nonnull final InstanceIdentifier<MappingEntry> id,
@Nonnull final MappingEntry readValue,
@Nonnull final ReadContext ctx) {
return Initialized.create(getCfgId(id),
new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.mapping.table.MappingEntryBuilder(readValue)
.build());
}
static InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.mapping.table.MappingEntry> getCfgId(final @Nonnull InstanceIdentifier<MappingEntry> id) {
return NatInstanceCustomizer.getCfgId(RWUtils.cutId(id, NatInstance.class))
.child(MappingTable.class)
.child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.mapping.table.MappingEntry.class,
new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.nat.instance.mapping.table.MappingEntryKey(id.firstKeyOf(MappingEntry.class).getIndex()));
}
static final class MappingEntryDumpExecutor
implements EntityDumpExecutor<SnatStaticMappingDetailsReplyDump, Void>, JvppReplyConsumer {
private final FutureJVppSnatFacade jvppSnat;
MappingEntryDumpExecutor(final FutureJVppSnatFacade jvppSnat) {
this.jvppSnat = jvppSnat;
}
@Nonnull
@Override
public SnatStaticMappingDetailsReplyDump executeDump(final InstanceIdentifier<?> identifier, final Void params)
throws ReadFailedException {
return getReplyForRead(jvppSnat.snatStaticMappingDump(new SnatStaticMappingDump()).toCompletableFuture(),
identifier);
}
}
}
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