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ipv6: ioam: Add support for the ip6ip6 encapsulation

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This patch adds support for the ip6ip6 encapsulation by providing three encap
modes: inline, encap and auto.

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Justin Iurman
2021-10-03 20:45:38 +02:00
committed by David S. Miller
parent 7b34e449e0
commit 8cb3bf8bff
3 changed files with 241 additions and 53 deletions
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29
include/uapi/linux/ioam6_iptunnel.h
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@@ -9,9 +9,38 @@
#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 */
__IOAM6_IPTUNNEL_MAX,
};