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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.acl.read;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Streams;
import io.fd.hc2vpp.acl.util.AclContextManager;
import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.MappingContext;
import io.fd.honeycomb.translate.ModificationCache;
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.read.cache.DumpCacheManager;
import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
import io.fd.honeycomb.translate.util.read.cache.TypeAwareIdentifierCacheKeyFactory;
import io.fd.vpp.jvpp.acl.dto.AclInterfaceListDetailsReplyDump;
import io.fd.vpp.jvpp.acl.dto.MacipAclDetailsReplyDump;
import io.fd.vpp.jvpp.acl.dto.MacipAclDump;
import io.fd.vpp.jvpp.acl.dto.MacipAclInterfaceGet;
import io.fd.vpp.jvpp.acl.dto.MacipAclInterfaceGetReply;
import io.fd.vpp.jvpp.acl.dto.MacipAclInterfaceListDetails;
import io.fd.vpp.jvpp.acl.dto.MacipAclInterfaceListDetailsReplyDump;
import io.fd.vpp.jvpp.acl.dto.MacipAclInterfaceListDump;
import io.fd.vpp.jvpp.acl.future.FutureJVppAclFacade;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.attachment.points.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.attachment.points._interface.acl.AclSetsBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.attachment.points._interface.acl.acl.sets.AclSet;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.attachment.points._interface.acl.acl.sets.AclSetBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev181001.acls.attachment.points._interface.acl.acl.sets.AclSetKey;
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;
public class IngressAclCustomizer extends AbstractAclCustomizer
implements InitializingListReaderCustomizer<AclSet, AclSetKey, AclSetBuilder>, JvppReplyConsumer {
@VisibleForTesting
protected static final int ACL_NOT_ASSIGNED = -1;
private static final Logger LOG = LoggerFactory.getLogger(IngressAclCustomizer.class);
private final AclContextManager macIpAclContext;
private final DumpCacheManager<MacipAclDetailsReplyDump, Integer> macIpAclDumpManager;
private final DumpCacheManager<MacipAclInterfaceGetReply, Void> interfaceMacIpAclDumpManager;
private final DumpCacheManager<MacipAclInterfaceListDetailsReplyDump, Integer> macAclReferenceDumpManager;
public IngressAclCustomizer(final FutureJVppAclFacade futureAclFacade, final NamingContext interfaceContext,
final AclContextManager standardAclContext, final AclContextManager macIpAClContext) {
super(futureAclFacade, interfaceContext, standardAclContext);
this.macIpAclContext = macIpAClContext;
macAclReferenceDumpManager =
new DumpCacheManager.DumpCacheManagerBuilder<MacipAclInterfaceListDetailsReplyDump, Integer>()
.withExecutor(createMacIpAclReferenceDumpExecutor())
// Key needs to contain interface ID to distinguish dumps between interfaces
.withCacheKeyFactory(
new TypeAwareIdentifierCacheKeyFactory(MacipAclInterfaceListDetailsReplyDump.class,
ImmutableSet.of(Interface.class)))
.build();
// for dumping of Mac-ip details
macIpAclDumpManager = new DumpCacheManager.DumpCacheManagerBuilder<MacipAclDetailsReplyDump, Integer>()
.withExecutor(createMacIpDumpExecutor())
.acceptOnly(MacipAclDetailsReplyDump.class)
.build();
// for dumping of reference on interface
interfaceMacIpAclDumpManager = new DumpCacheManager.DumpCacheManagerBuilder<MacipAclInterfaceGetReply, Void>()
.withExecutor(createInterfaceMacIpDumpExecutor())
.acceptOnly(MacipAclInterfaceGetReply.class)
.build();
}
@Nonnull
@Override
public Initialized<? extends DataObject> init(@Nonnull final InstanceIdentifier<AclSet> instanceIdentifier,
@Nonnull final AclSet aclSet,
@Nonnull final ReadContext readContext) {
return Initialized.create(instanceIdentifier, aclSet);
}
@Nonnull
@Override
public List<AclSetKey> getAllIds(@Nonnull final InstanceIdentifier<AclSet> instanceIdentifier,
@Nonnull final ReadContext readContext) throws ReadFailedException {
final String parentInterfaceName = instanceIdentifier.firstKeyOf(Interface.class).getInterfaceId();
final int parentInterfaceIndex =
interfaceContext.getIndex(parentInterfaceName, readContext.getMappingContext());
//TODO stdDumpReply keys need to be filtered as ingress only
final Optional<AclInterfaceListDetailsReplyDump> stdDumpReply =
aclReferenceDumpManager
.getDump(instanceIdentifier, readContext.getModificationCache(), parentInterfaceIndex);
final Optional<MacipAclInterfaceListDetailsReplyDump> macipDumpReply =
macAclReferenceDumpManager
.getDump(instanceIdentifier, readContext.getModificationCache(), parentInterfaceIndex);
Stream<AclSetKey> macIpAclSetKeys = getMacIpAclSetKeys(readContext, macipDumpReply);
Stream<AclSetKey> standardAclSetKeys = getStandardAclSetKeys(readContext, stdDumpReply, true);
return Streams.concat(standardAclSetKeys, macIpAclSetKeys).distinct().collect(Collectors.toList());
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<AclSet> list) {
((AclSetsBuilder) builder).setAclSet(list);
}
@Nonnull
@Override
public AclSetBuilder getBuilder(@Nonnull final InstanceIdentifier<AclSet> instanceIdentifier) {
return new AclSetBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<AclSet> instanceIdentifier,
@Nonnull final AclSetBuilder aclSetBuilder,
@Nonnull final ReadContext readContext) throws ReadFailedException {
final AclSetKey vppAclsKey = instanceIdentifier.firstKeyOf(AclSet.class);
final String interfaceName = instanceIdentifier.firstKeyOf(Interface.class).getInterfaceId();
final String aclName = vppAclsKey.getName();
final MappingContext mappingContext = readContext.getMappingContext();
ModificationCache modificationCache = readContext.getModificationCache();
if (standardAclContext.containsAcl(aclName, mappingContext)) {
parseStandardAclSet(instanceIdentifier, aclSetBuilder, aclName, mappingContext, modificationCache);
} else if (macIpAclContext.containsAcl(aclName, mappingContext)) {
parseMacIpAclSet(instanceIdentifier, aclSetBuilder, interfaceName, mappingContext, modificationCache);
}
}
public void parseMacIpAclSet(@Nonnull final InstanceIdentifier<AclSet> instanceIdentifier,
@Nonnull final AclSetBuilder aclSetBuilder,
final String interfaceName, final MappingContext mappingContext,
final ModificationCache modificationCache)
throws ReadFailedException {
final Optional<MacipAclInterfaceGetReply> interfacesMacIpDumpReply =
interfaceMacIpAclDumpManager.getDump(instanceIdentifier, modificationCache);
final int interfaceIndex = interfaceContext.getIndex(interfaceName, mappingContext);
MacipAclInterfaceGetReply reply = interfacesMacIpDumpReply.get();
if (reply.acls == null || reply.acls.length == 0) {
LOG.debug("No MacACls found for interface. Iid: {}", instanceIdentifier);
return;
}
final int aclIndex = reply.acls[interfaceIndex];
if (aclIndex != ACL_NOT_ASSIGNED) {
final Optional<MacipAclDetailsReplyDump> macIpDumpReply =
macIpAclDumpManager.getDump(instanceIdentifier, modificationCache, aclIndex);
if (macIpDumpReply.isPresent() && !macIpDumpReply.get().macipAclDetails.isEmpty()) {
aclSetBuilder.setName(macIpAclContext.getAclName(aclIndex, mappingContext));
} else {
// this is invalid state(Interface in VPP will act as "deny-all" for security reasons), but generally
// it should not happen
throw new ReadFailedException(instanceIdentifier,
new IllegalStateException(String.format("ACE with index %s not found in VPP", aclIndex)));
}
}
}
private EntityDumpExecutor<MacipAclInterfaceListDetailsReplyDump, Integer> createMacIpAclReferenceDumpExecutor() {
return (identifier, params) -> {
MacipAclInterfaceListDump dumpRequest = new MacipAclInterfaceListDump();
dumpRequest.swIfIndex = params;
return getReplyForRead(getjVppAclFacade().macipAclInterfaceListDump(dumpRequest).toCompletableFuture(),
identifier);
};
}
private EntityDumpExecutor<MacipAclDetailsReplyDump, Integer> createMacIpDumpExecutor() {
return (identifier, params) -> {
MacipAclDump request = new MacipAclDump();
request.aclIndex = params;
return getReplyForRead(getjVppAclFacade().macipAclDump(request).toCompletableFuture(), identifier);
};
}
private EntityDumpExecutor<MacipAclInterfaceGetReply, Void> createInterfaceMacIpDumpExecutor() {
return (identifier, params) -> getReplyForRead(
getjVppAclFacade().macipAclInterfaceGet(new MacipAclInterfaceGet()).toCompletableFuture(),
identifier);
}
private Stream<AclSetKey> getMacIpAclSetKeys(@Nonnull final ReadContext readContext,
final Optional<MacipAclInterfaceListDetailsReplyDump> dumpReply) {
if (dumpReply.isPresent() && !dumpReply.get().macipAclInterfaceListDetails.isEmpty()) {
// if dumpReply is present, then aclInterfaceListDetails contains single element (actually it should not be
// dump message in vpp)
final MacipAclInterfaceListDetails aclDetails = dumpReply.get().macipAclInterfaceListDetails.get(0);
return Arrays.stream(aclDetails.acls).limit(aclDetails.count)
.mapToObj(aclIndex -> macIpAclContext.getAclName(aclIndex, readContext.getMappingContext()))
.map(AclSetKey::new);
} else {
return Stream.empty();
}
}
}
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