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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* IPv6 RPL-SR implementation
*
* Author:
* (C) 2020 Alexander Aring <alex.aring@gmail.com>
*/
#ifndef _LINUX_RPL_H
#define _LINUX_RPL_H
#include <asm/byteorder.h>
#include <linux/types.h>
#include <linux/in6.h>
/*
* RPL SR Header
*/
struct ipv6_rpl_sr_hdr {
__u8 nexthdr;
__u8 hdrlen;
__u8 type;
__u8 segments_left;
#if defined(__LITTLE_ENDIAN_BITFIELD)
__u32 cmpre:4,
cmpri:4,
reserved:4,
pad:4,
reserved1:16;
#elif defined(__BIG_ENDIAN_BITFIELD)
__u32 cmpri:4,
cmpre:4,
pad:4,
reserved:20;
#else
#error "Please fix <asm/byteorder.h>"
#endif
union {
__DECLARE_FLEX_ARRAY(struct in6_addr, addr);
__DECLARE_FLEX_ARRAY(__u8, data);
} segments;
} __attribute__((packed));
#define rpl_segaddr segments.addr
#define rpl_segdata segments.data
#endif
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