1 files changed, 85 insertions, 0 deletions
diff --git a/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/common/AceEthWriter.java b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/common/AceEthWriter.java
new file mode 100644
index 000000000..2a88239cc
--- /dev/null
+++ b/vpp-classifier/impl/src/main/java/io/fd/hc2vpp/vpp/classifier/write/acl/common/AceEthWriter.java
@@ -0,0 +1,85 @@
+/*
+ * 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.common;
+
+import com.google.common.annotations.VisibleForTesting;
+import io.fd.vpp.jvpp.core.dto.ClassifyAddDelSession;
+import io.fd.vpp.jvpp.core.dto.ClassifyAddDelTable;
+import java.util.Collections;
+import java.util.List;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.actions.PacketHandling;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.access.control.list.rev160708.access.lists.acl.access.list.entries.ace.matches.ace.type.AceEth;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.classifier.acl.rev161214.InterfaceMode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class AceEthWriter implements AceWriter<AceEth>, AclTranslator, L2AclTranslator {
+
+    @VisibleForTesting
+    static final int MATCH_N_VECTORS = 1;
+    private static final Logger LOG = LoggerFactory.getLogger(AceEthWriter.class);
+
+    @Override
+    public ClassifyAddDelTable createTable(@Nonnull final AceEth aceEth,
+                                           @Nullable final InterfaceMode mode,
+                                           final int nextTableIndex,
+                                           final int vlanTags) {
+        final ClassifyAddDelTable request = createTable(nextTableIndex);
+
+        request.mask = new byte[16];
+        boolean aceIsEmpty =
+            destinationMacAddressMask(aceEth.getDestinationMacAddressMask(), aceEth.getDestinationMacAddress(),
+                request);
+        aceIsEmpty &=
+            sourceMacAddressMask(aceEth.getSourceMacAddressMask(), aceEth.getSourceMacAddress(), request);
+
+        if (aceIsEmpty) {
+            throw new IllegalArgumentException(
+                String.format("Ace %s does not define packet field match values", aceEth.toString()));
+        }
+
+        request.skipNVectors = 0;
+        request.matchNVectors = MATCH_N_VECTORS;
+
+        LOG.debug("ACE rule={} translated to table={}.", aceEth, request);
+        return request;
+    }
+
+    @Override
+    public List<ClassifyAddDelSession> createSession(@Nonnull final PacketHandling action,
+                                                     @Nonnull final AceEth aceEth,
+                                                     @Nullable final InterfaceMode mode,
+                                                     final int tableIndex,
+                                                     final int vlanTags) {
+        final ClassifyAddDelSession request = createSession(action, tableIndex);
+
+        request.match = new byte[16];
+        boolean noMatch = destinationMacAddressMatch(aceEth.getDestinationMacAddress(), request);
+        noMatch &= sourceMacAddressMatch(aceEth.getSourceMacAddress(), request);
+
+        if (noMatch) {
+            throw new IllegalArgumentException(
+                String.format("Ace %s does not define neither source nor destination MAC address",
+                    aceEth.toString()));
+        }
+
+        LOG.debug("ACE action={}, rule={} translated to session={}.", action, aceEth, request);
+        return Collections.singletonList(request);
+    }
+}