Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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/*
18 * SRH
19 */
20struct ipv6_sr_hdr {
21 __u8 nexthdr;
22 __u8 hdrlen;
23 __u8 type;
24 __u8 segments_left;
25 __u8 first_segment;
26 __u8 flags;
27 __u16 reserved;
28
29 struct in6_addr segments[0];
30};
31
32#define SR6_FLAG1_PROTECTED (1 << 6)
33#define SR6_FLAG1_OAM (1 << 5)
34#define SR6_FLAG1_ALERT (1 << 4)
35#define SR6_FLAG1_HMAC (1 << 3)
36
37#define SR6_TLV_INGRESS 1
38#define SR6_TLV_EGRESS 2
39#define SR6_TLV_OPAQUE 3
40#define SR6_TLV_PADDING 4
41#define SR6_TLV_HMAC 5
42
43#define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC)
44
45struct sr6_tlv {
46 __u8 type;
47 __u8 len;
48 __u8 data[0];
49};
50
51#endif