1 files changed, 71 insertions, 0 deletions
diff --git a/lib/librte_net/rte_gre.h b/lib/librte_net/rte_gre.h
new file mode 100644
index 00000000..46568ff5
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+++ b/lib/librte_net/rte_gre.h
@@ -0,0 +1,71 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2016 6WIND S.A.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_GRE_H_
+#define _RTE_GRE_H_
+
+#include <stdint.h>
+#include <rte_byteorder.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * GRE Header
+ */
+struct gre_hdr {
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+	uint16_t res2:4; /**< Reserved */
+	uint16_t s:1;    /**< Sequence Number Present bit */
+	uint16_t k:1;    /**< Key Present bit */
+	uint16_t res1:1; /**< Reserved */
+	uint16_t c:1;    /**< Checksum Present bit */
+	uint16_t ver:3;  /**< Version Number */
+	uint16_t res3:5; /**< Reserved */
+#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
+	uint16_t c:1;    /**< Checksum Present bit */
+	uint16_t res1:1; /**< Reserved */
+	uint16_t k:1;    /**< Key Present bit */
+	uint16_t s:1;    /**< Sequence Number Present bit */
+	uint16_t res2:4; /**< Reserved */
+	uint16_t res3:5; /**< Reserved */
+	uint16_t ver:3;  /**< Version Number */
+#endif
+	uint16_t proto;  /**< Protocol Type */
+} __attribute__((__packed__));
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* RTE_GRE_H_ */