]>
Commit | Line | Data |
---|---|---|
e2be04c7 | 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
1ababeba DL |
2 | /* |
3 | * SR-IPv6 implementation | |
4 | * | |
5 | * Author: | |
6 | * David Lebrun <david.lebrun@uclouvain.be> | |
7 | * | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #ifndef _UAPI_LINUX_SEG6_H | |
16 | #define _UAPI_LINUX_SEG6_H | |
17 | ||
a50a05f4 | 18 | #include <linux/types.h> |
ea3ebc73 | 19 | #include <linux/in6.h> /* For struct in6_addr. */ |
a50a05f4 | 20 | |
1ababeba DL |
21 | /* |
22 | * SRH | |
23 | */ | |
24 | struct ipv6_sr_hdr { | |
25 | __u8 nexthdr; | |
26 | __u8 hdrlen; | |
27 | __u8 type; | |
28 | __u8 segments_left; | |
29 | __u8 first_segment; | |
013e8167 DL |
30 | __u8 flags; |
31 | __u16 reserved; | |
1ababeba DL |
32 | |
33 | struct in6_addr segments[0]; | |
34 | }; | |
35 | ||
1ababeba DL |
36 | #define SR6_FLAG1_PROTECTED (1 << 6) |
37 | #define SR6_FLAG1_OAM (1 << 5) | |
38 | #define SR6_FLAG1_ALERT (1 << 4) | |
39 | #define SR6_FLAG1_HMAC (1 << 3) | |
40 | ||
41 | #define SR6_TLV_INGRESS 1 | |
42 | #define SR6_TLV_EGRESS 2 | |
43 | #define SR6_TLV_OPAQUE 3 | |
44 | #define SR6_TLV_PADDING 4 | |
45 | #define SR6_TLV_HMAC 5 | |
46 | ||
013e8167 | 47 | #define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC) |
1ababeba DL |
48 | |
49 | struct sr6_tlv { | |
50 | __u8 type; | |
51 | __u8 len; | |
52 | __u8 data[0]; | |
53 | }; | |
54 | ||
55 | #endif |