diff options
Diffstat (limited to 'vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/ingress/IetfAclCustomizer.java')
-rw-r--r-- | vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/ingress/IetfAclCustomizer.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/ingress/IetfAclCustomizer.java b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/ingress/IetfAclCustomizer.java new file mode 100644 index 000000000..842c1596f --- /dev/null +++ b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/ingress/IetfAclCustomizer.java @@ -0,0 +1,89 @@ +/* + * 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.vpp.classifier.write.acl.ingress; + +import static com.google.common.base.Preconditions.checkArgument; +import static com.google.common.base.Preconditions.checkNotNull; + +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 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.opendaylight.params.xml.ns.yang.vpp.classifier.acl.rev161214.ietf.acl.base.attributes.AccessLists; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.acl.rev161214.vpp.acl.attributes.ietf.acl.Ingress; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Customizer for enabling/disabling ingress ACLs for given interface (as defined in ietf-acl model). + * + * The customizer assumes it owns classify table management for interfaces where ietf-acl container is present. Using + * low level classifier model or direct changes to classify tables in combination with ietf-acls are not supported and + * can result in unpredictable behaviour. + */ +public class IetfAclCustomizer implements WriterCustomizer<Ingress> { + + private static final Logger LOG = LoggerFactory.getLogger(IetfAclCustomizer.class); + private final IngressIetfAclWriter aclWriter; + private final NamingContext interfaceContext; + + public IetfAclCustomizer(@Nonnull final IngressIetfAclWriter aclWriter, + @Nonnull final NamingContext interfaceContext) { + this.aclWriter = checkNotNull(aclWriter, "aclWriter should not be null"); + this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null"); + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Ingress> id, @Nonnull final Ingress dataAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String ifName = id.firstKeyOf(Interface.class).getName(); + final int ifIndex = interfaceContext.getIndex(ifName, writeContext.getMappingContext()); + LOG.debug("Adding ACLs for interface={}(id={}): {}", ifName, ifIndex, dataAfter); + + final AccessLists accessLists = dataAfter.getAccessLists(); + checkArgument(accessLists != null && accessLists.getAcl() != null, + "ietf-acl container does not define acl list"); + + aclWriter.write(id, ifIndex, accessLists.getAcl(), accessLists.getDefaultAction(), accessLists.getMode(), + writeContext, writeContext.getMappingContext()); + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Ingress> id, + @Nonnull final Ingress dataBefore, @Nonnull final Ingress dataAfter, + @Nonnull final WriteContext writeContext) + throws WriteFailedException { + LOG.debug("ACLs update: removing previously configured ACLs"); + deleteCurrentAttributes(id, dataBefore, writeContext); + LOG.debug("ACLs update: adding updated ACLs"); + writeCurrentAttributes(id, dataAfter, writeContext); + LOG.debug("ACLs update was successful"); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Ingress> id, + @Nonnull final Ingress dataBefore, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String ifName = id.firstKeyOf(Interface.class).getName(); + final int ifIndex = interfaceContext.getIndex(ifName, writeContext.getMappingContext()); + LOG.debug("Removing ACLs for interface={}(id={}): {}", ifName, ifIndex, dataBefore); + aclWriter.deleteAcl(id, ifIndex, writeContext.getMappingContext()); + } +} |