rte_gre.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2016 6WIND S.A.
 */

#ifndef _RTE_GRE_H_
#define _RTE_GRE_H_

#include <stdint.h>
#include <rte_byteorder.h>

#ifdef __cplusplus
extern "C" {
#endif

__extension__
struct rte_gre_hdr {
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
    uint16_t res2:4; 
    uint16_t s:1;    
    uint16_t k:1;    
    uint16_t res1:1; 
    uint16_t c:1;    
    uint16_t ver:3;  
    uint16_t res3:5; 
#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
    uint16_t c:1;    
    uint16_t res1:1; 
    uint16_t k:1;    
    uint16_t s:1;    
    uint16_t res2:4; 
    uint16_t res3:5; 
    uint16_t ver:3;  
#endif
    uint16_t proto;  
} __rte_packed;

struct rte_gre_hdr_opt_checksum_rsvd {
    rte_be16_t checksum;
    rte_be16_t reserved1;
} __rte_packed;

struct rte_gre_hdr_opt_key {
    rte_be32_t key;
} __rte_packed;

struct rte_gre_hdr_opt_sequence {
    rte_be32_t sequence;
} __rte_packed;

#ifdef __cplusplus
}
#endif

#endif /* RTE_GRE_H_ */