1 files changed, 36 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/io/metis_Ethernet.h b/metis/ccnx/forwarder/metis/io/metis_Ethernet.h
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+++ b/metis/ccnx/forwarder/metis/io/metis_Ethernet.h
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ */
+
+/**
+ * @file metis_Ethernet.h
+ * @brief Helpers for Ethernet frames
+ *
+ */
+
+#ifndef Metis_metis_Ethernet_h
+#define Metis_metis_Ethernet_h
+
+/**
+ * returns true is the ethertype is at least 0x0600 indicating
+ * a type II frame (IEEE 802.3x-1997)
+ *
+ * @param [in] ethertype The ethertype in host byte order
+ *
+ * @retval true if the ethertype is at least 0x0600
+ * @retval false Otherwise
+ */
+#define metisEthernet_IsValidEthertype(ethertype) ((ethertype) >= 0x0600)
+
+#endif