ip6_tunnel.h revision 5a67f8f9d3a7f80a49554fb1ca4e68a1effd5399 
1#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 */
24	__be32 flowinfo;	/* traffic class and flowlabel for tunnel */
25	__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
31