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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * $Id$
3 */
4
5#ifndef _IP6_TUNNEL_H
6#define _IP6_TUNNEL_H
7
8#define IPV6_TLV_TNL_ENCAP_LIMIT 4
9#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4
10
11/* don't add encapsulation limit if one isn't present in inner packet */
12#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1
13/* copy the traffic class field from the inner packet */
14#define IP6_TNL_F_USE_ORIG_TCLASS 0x2
15/* copy the flowlabel from the inner packet */
16#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4
17/* being used for Mobile IPv6 */
18#define IP6_TNL_F_MIP6_DEV 0x8
19/* copy DSCP from the outer packet */
20#define IP6_TNL_F_RCV_DSCP_COPY 0x10
21
22struct ip6_tnl_parm {
23 char name[IFNAMSIZ]; /* name of tunnel device */
24 int link; /* ifindex of underlying L2 interface */
25 __u8 proto; /* tunnel protocol */
26 __u8 encap_limit; /* encapsulation limit for tunnel */
27 __u8 hop_limit; /* hop limit for tunnel */
Al Viro90bcaf72006-11-08 00:25:17 -080028 __be32 flowinfo; /* traffic class and flowlabel for tunnel */
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 __u32 flags; /* tunnel flags */
30 struct in6_addr laddr; /* local tunnel end-point address */
31 struct in6_addr raddr; /* remote tunnel end-point address */
32};
33
34#endif