| 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
| 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 _LINUX_SEG6_IPTUNNEL_H |
| 16 | #define _LINUX_SEG6_IPTUNNEL_H |
| 17 | |
| 18 | #include <linux/seg6.h> /* For struct ipv6_sr_hdr. */ |
| 19 | |
| 20 | enum { |
| 21 | SEG6_IPTUNNEL_UNSPEC, |
| 22 | SEG6_IPTUNNEL_SRH, |
| 23 | SEG6_IPTUNNEL_SRC, /* struct in6_addr */ |
| 24 | __SEG6_IPTUNNEL_MAX, |
| 25 | }; |
| 26 | #define SEG6_IPTUNNEL_MAX (__SEG6_IPTUNNEL_MAX - 1) |
| 27 | |
| 28 | struct seg6_iptunnel_encap { |
| 29 | int mode; |
| 30 | struct ipv6_sr_hdr srh[]; |
| 31 | }; |
| 32 | |
| 33 | #define SEG6_IPTUN_ENCAP_SIZE(x) ((sizeof(*x)) + (((x)->srh->hdrlen + 1) << 3)) |
| 34 | |
| 35 | enum { |
| 36 | SEG6_IPTUN_MODE_INLINE, |
| 37 | SEG6_IPTUN_MODE_ENCAP, |
| 38 | SEG6_IPTUN_MODE_L2ENCAP, |
| 39 | SEG6_IPTUN_MODE_ENCAP_RED, |
| 40 | SEG6_IPTUN_MODE_L2ENCAP_RED, |
| 41 | }; |
| 42 | |
| 43 | #endif |