1 files changed, 112 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/acl/ingress/SubInterfaceIetfAclCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/acl/ingress/SubInterfaceIetfAclCustomizer.java
new file mode 100644
index 000000000..285ebce99
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/acl/ingress/SubInterfaceIetfAclCustomizer.java
@@ -0,0 +1,112 @@
+/*
+ * 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.translate.v3po.interfaces.acl.ingress;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+import static io.fd.honeycomb.translate.vpp.util.SubInterfaceUtils.getNumberOfTags;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.translate.vpp.util.NamingContext;
+import io.fd.honeycomb.translate.vpp.util.SubInterfaceUtils;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.VppBaseCallException;
+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.interfaces.rev140508.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.ietf.acl.base.attributes.AccessLists;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.vlan.rev150527.interfaces._interface.sub.interfaces.SubInterface;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.vlan.rev150527.interfaces._interface.sub.interfaces.SubInterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.vlan.rev150527.sub._interface.base.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 sub-interface (as defined in ietf-acl model).
+ *
+ * The customizer assumes it owns classify table management for sub-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 SubInterfaceIetfAclCustomizer implements WriterCustomizer<Ingress> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(SubInterfaceIetfAclCustomizer.class);
+    private final IetfAClWriter aclWriter;
+    private final NamingContext interfaceContext;
+
+    public SubInterfaceIetfAclCustomizer(@Nonnull final IetfAClWriter aclWriter,
+                                         @Nonnull final NamingContext interfaceContext) {
+        this.aclWriter = checkNotNull(aclWriter, "aclWriter should not be null");
+        this.interfaceContext = checkNotNull(interfaceContext, "interfaceContext should not be null");
+    }
+
+    private String getSubInterfaceName(@Nonnull final InstanceIdentifier<Ingress> id) {
+        final InterfaceKey parentInterfacekey = id.firstKeyOf(Interface.class);
+        final SubInterfaceKey subInterfacekey = id.firstKeyOf(SubInterface.class);
+        return SubInterfaceUtils
+            .getSubInterfaceName(parentInterfacekey.getName(), subInterfacekey.getIdentifier().intValue());
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Ingress> id, @Nonnull final Ingress dataAfter,
+                                       @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        final String subInterfaceName = getSubInterfaceName(id);
+        final int subInterfaceIndex = interfaceContext.getIndex(subInterfaceName, writeContext.getMappingContext());
+        LOG.debug("Adding IETF-ACL for sub-interface: {}(id={}): {}", subInterfaceName, subInterfaceIndex, dataAfter);
+
+        final AccessLists accessLists = dataAfter.getAccessLists();
+        checkArgument(accessLists != null && accessLists.getAcl() != null,
+            "ietf-acl container does not define acl list");
+
+        final Optional<SubInterface> subInterfaceOptional =
+            writeContext.readAfter(id.firstIdentifierOf(SubInterface.class));
+        checkState(subInterfaceOptional.isPresent(), "Could not read SubInterface data object for %s", id);
+        final SubInterface subInterface = subInterfaceOptional.get();
+
+        try {
+            aclWriter.write(id, subInterfaceIndex, accessLists.getAcl(), writeContext,
+                getNumberOfTags(subInterface.getTags()));
+        } catch (VppBaseCallException e) {
+            throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
+        }
+    }
+
+    @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("Sub-interface ACLs update: removing previously configured ACLs");
+        deleteCurrentAttributes(id, dataBefore, writeContext);
+        LOG.debug("Sub-interface ACLs update: adding updated ACLs");
+        writeCurrentAttributes(id, dataAfter, writeContext);
+        LOG.debug("Sub-interface 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 subInterfaceName = getSubInterfaceName(id);
+        final int subInterfaceIndex = interfaceContext.getIndex(subInterfaceName, writeContext.getMappingContext());
+        LOG.debug("Removing ACLs for sub-interface={}(id={}): {}", subInterfaceName, subInterfaceIndex, dataBefore);
+        aclWriter.deleteAcl(id, subInterfaceIndex);
+    }
+}