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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.write;
import static io.fd.hc2vpp.acl.write.request.MacIpInterfaceAssignmentRequest.deleteExisting;
import static java.util.stream.Collectors.toList;
import io.fd.hc2vpp.acl.util.AclContextManager;
import io.fd.hc2vpp.acl.util.FutureJVppAclCustomizer;
import io.fd.hc2vpp.acl.write.request.AclInterfaceAssignmentRequest;
import io.fd.hc2vpp.acl.write.request.MacIpInterfaceAssignmentRequest;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.honeycomb.translate.MappingContext;
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.acl.future.FutureJVppAclFacade;
import java.util.Collections;
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.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.AclSets;
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.yangtools.yang.binding.InstanceIdentifier;
/**
* Handles acl assignments(only standard ones, mac-ip have dedicated customizer)
*/
public class InterfaceAclCustomizer extends FutureJVppAclCustomizer implements WriterCustomizer<Interface> {
private final NamingContext interfaceContext;
private final AclContextManager standardAclContext;
private final AclContextManager macIpAclContext;
public InterfaceAclCustomizer(@Nonnull final FutureJVppAclFacade jVppAclFacade,
@Nonnull final NamingContext interfaceContext,
@Nonnull final AclContextManager standardAclContext,
@Nonnull final AclContextManager macIpAclContext) {
super(jVppAclFacade);
this.interfaceContext = interfaceContext;
this.standardAclContext = standardAclContext;
this.macIpAclContext = macIpAclContext;
}
private static List<String> getAclNames(final AclSets acls) {
if (acls == null || acls.getAclSet() == null) {
return Collections.emptyList();
} else {
return acls.getAclSet().stream().map(AclSet::getName).collect(toList());
}
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
AclSets egress = dataAfter.getEgress() != null ? dataAfter.getEgress().getAclSets() : null;
AclSets ingress = dataAfter.getIngress() != null ? dataAfter.getIngress().getAclSets() : null;
List<String> macIngress = parseMacRules(getAclNames(ingress), writeContext.getMappingContext());
List<String> standardIngress = parseStandardRules(getAclNames(ingress), writeContext.getMappingContext());
List<String> standardEgress = parseStandardRules(getAclNames(egress), writeContext.getMappingContext());
// Process standard ACLs
if (!standardIngress.isEmpty() || !standardEgress.isEmpty()) {
AclInterfaceAssignmentRequest.create(writeContext.getMappingContext())
.standardAclContext(standardAclContext)
.interfaceContext(interfaceContext)
.identifier(id)
.inputAclNames(standardIngress)
.outputAclNames(standardEgress)
.executeAsCreate(getjVppAclFacade());
}
// Process mac ACLs
if (!macIngress.isEmpty()) {
addMacAcls(id, writeContext, macIngress);
}
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataBefore,
@Nonnull final Interface dataAfter, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
AclSets egress = dataAfter.getEgress() != null ? dataAfter.getEgress().getAclSets() : null;
AclSets ingress = dataAfter.getIngress() != null ? dataAfter.getIngress().getAclSets() : null;
List<String> standardIngress = parseStandardRules(getAclNames(ingress), writeContext.getMappingContext());
List<String> standardEgress = parseStandardRules(getAclNames(egress), writeContext.getMappingContext());
// update standard ACLs
AclInterfaceAssignmentRequest.create(writeContext.getMappingContext())
.standardAclContext(standardAclContext)
.interfaceContext(interfaceContext)
.identifier(id)
.inputAclNames(standardIngress)
.outputAclNames(standardEgress)
.executeAsUpdate(getjVppAclFacade(), dataBefore, dataAfter);
// Process mac ACLs
AclSets ingressBefore = dataBefore.getIngress() != null ? dataBefore.getIngress().getAclSets() : null;
List<String> macIngressAfter = parseMacRules(getAclNames(ingress), writeContext.getMappingContext());
List<String> macIngressBefore = parseMacRules(getAclNames(ingressBefore), writeContext.getMappingContext());
List<String> added =
macIngressAfter.stream().filter(acl -> !macIngressBefore.contains(acl)).collect(Collectors.toList());
List<String> removed =
macIngressBefore.stream().filter(acl -> !macIngressAfter.contains(acl)).collect(Collectors.toList());
if (!removed.isEmpty()) {
deleteMacACLs(id, writeContext, removed);
}
if (!added.isEmpty()) {
addMacAcls(id, writeContext, added);
}
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
AclSets ingress = dataBefore.getIngress() != null ? dataBefore.getIngress().getAclSets() : null;
List<String> standardIngress = parseStandardRules(getAclNames(ingress), writeContext.getMappingContext());
List<String> macIngress = parseMacRules(getAclNames(ingress), writeContext.getMappingContext());
//Process standard ACLs
if (!standardIngress.isEmpty()) {
AclInterfaceAssignmentRequest.create(writeContext.getMappingContext())
.standardAclContext(standardAclContext)
.interfaceContext(interfaceContext)
.identifier(id)
.executeAsDelete(getjVppAclFacade());
}
// Process mac ACLs
if (!macIngress.isEmpty()) {
deleteMacACLs(id, writeContext, macIngress);
}
}
private List<String> parseMacRules(final List<String> ingress, final MappingContext mappingContext) {
return ingress.stream()
.filter(aclName -> macIpAclContext.containsAcl(aclName, mappingContext)).collect(Collectors.toList());
}
private List<String> parseStandardRules(final List<String> ingress, final MappingContext mappingContext) {
return ingress.stream()
.filter(aclName -> standardAclContext.containsAcl(aclName, mappingContext))
.collect(Collectors.toList());
}
private void addMacAcls(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final WriteContext writeContext, final List<String> added)
throws WriteFailedException {
for (String macAcl : added) {
MacIpInterfaceAssignmentRequest.addNew(writeContext.getMappingContext())
.identifier(id)
.aclName(macAcl)
.macIpAclContext(macIpAclContext)
.interfaceContext(interfaceContext)
.execute(getjVppAclFacade());
}
}
private void deleteMacACLs(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final WriteContext writeContext, final List<String> macAcls)
throws WriteFailedException {
for (String macAcl : macAcls) {
deleteExisting(writeContext.getMappingContext())
.identifier(id)
.aclName(macAcl)
.macIpAclContext(macIpAclContext)
.interfaceContext(interfaceContext)
.execute(getjVppAclFacade());
}
}
}
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