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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * IPv6 IOAM Lightweight Tunnel API * * Author: * Justin Iurman <justin.iurman@uliege.be> */ #ifndef _UAPI_LINUX_IOAM6_IPTUNNEL_H #define _UAPI_LINUX_IOAM6_IPTUNNEL_H /* Encap modes: * - inline: direct insertion * - encap: ip6ip6 encapsulation * - auto: inline for local packets, encap for in-transit packets */ enum { __IOAM6_IPTUNNEL_MODE_MIN, IOAM6_IPTUNNEL_MODE_INLINE, IOAM6_IPTUNNEL_MODE_ENCAP, IOAM6_IPTUNNEL_MODE_AUTO, __IOAM6_IPTUNNEL_MODE_MAX, }; #define IOAM6_IPTUNNEL_MODE_MIN (__IOAM6_IPTUNNEL_MODE_MIN + 1) #define IOAM6_IPTUNNEL_MODE_MAX (__IOAM6_IPTUNNEL_MODE_MAX - 1) enum { IOAM6_IPTUNNEL_UNSPEC, /* Encap mode */ IOAM6_IPTUNNEL_MODE, /* u8 */ /* Tunnel dst address. * For encap,auto modes. */ IOAM6_IPTUNNEL_DST, /* struct in6_addr */ /* IOAM Trace Header */ IOAM6_IPTUNNEL_TRACE, /* struct ioam6_trace_hdr */ /* Insertion frequency: * "k over n" packets (0 < k <= n) * [0.0001% ... 100%] */ #define IOAM6_IPTUNNEL_FREQ_MIN 1 #define IOAM6_IPTUNNEL_FREQ_MAX 1000000 IOAM6_IPTUNNEL_FREQ_K, /* u32 */ IOAM6_IPTUNNEL_FREQ_N, /* u32 */ /* Tunnel src address. * For encap,auto modes. * Optional (automatic if not provided). */ IOAM6_IPTUNNEL_SRC, /* struct in6_addr */ __IOAM6_IPTUNNEL_MAX, }; #define IOAM6_IPTUNNEL_MAX (__IOAM6_IPTUNNEL_MAX - 1) #endif /* _UAPI_LINUX_IOAM6_IPTUNNEL_H */