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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _IP6_TUNNEL_H
2#define _IP6_TUNNEL_H
3
4#define IPV6_TLV_TNL_ENCAP_LIMIT 4
5#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4
6
7/* don't add encapsulation limit if one isn't present in inner packet */
8#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1
9/* copy the traffic class field from the inner packet */
10#define IP6_TNL_F_USE_ORIG_TCLASS 0x2
11/* copy the flowlabel from the inner packet */
12#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4
13/* being used for Mobile IPv6 */
14#define IP6_TNL_F_MIP6_DEV 0x8
15/* copy DSCP from the outer packet */
16#define IP6_TNL_F_RCV_DSCP_COPY 0x10
17
18struct ip6_tnl_parm {
19 char name[IFNAMSIZ]; /* name of tunnel device */
20 int link; /* ifindex of underlying L2 interface */
21 __u8 proto; /* tunnel protocol */
22 __u8 encap_limit; /* encapsulation limit for tunnel */
23 __u8 hop_limit; /* hop limit for tunnel */
Al Viro90bcaf72006-11-08 00:25:17 -080024 __be32 flowinfo; /* traffic class and flowlabel for tunnel */
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 __u32 flags; /* tunnel flags */
26 struct in6_addr laddr; /* local tunnel end-point address */
27 struct in6_addr raddr; /* remote tunnel end-point address */
28};
29
30#endif