Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * SR-IPv6 implementation
3 *
4 * Author:
5 * David Lebrun <david.lebrun@uclouvain.be>
6 *
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13
14#ifndef _UAPI_LINUX_SEG6_H
15#define _UAPI_LINUX_SEG6_H
16
17#include <linux/types.h>
18#include <linux/in6.h> /* For struct in6_addr. */
19
20/*
21 * SRH
22 */
23struct ipv6_sr_hdr {
24 __u8 nexthdr;
25 __u8 hdrlen;
26 __u8 type;
27 __u8 segments_left;
28 __u8 first_segment;
29 __u8 flags;
30 __u16 reserved;
31
32 struct in6_addr segments[0];
33};
34
35#define SR6_FLAG1_PROTECTED (1 << 6)
36#define SR6_FLAG1_OAM (1 << 5)
37#define SR6_FLAG1_ALERT (1 << 4)
38#define SR6_FLAG1_HMAC (1 << 3)
39
40#define SR6_TLV_INGRESS 1
41#define SR6_TLV_EGRESS 2
42#define SR6_TLV_OPAQUE 3
43#define SR6_TLV_PADDING 4
44#define SR6_TLV_HMAC 5
45
46#define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC)
47
48struct sr6_tlv {
49 __u8 type;
50 __u8 len;
51 __u8 data[0];
52};
53
54#endif