| /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ | |
| /* | |
| * IPv6 RPL-SR implementation | |
| * | |
| * Author: | |
| * (C) 2020 Alexander Aring <alex.aring@gmail.com> | |
| */ | |
| #ifndef _UAPI_LINUX_RPL_H | |
| #define _UAPI_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 |