1#ifndef _IP6_TUNNEL_H 2#define _IP6_TUNNEL_H 3 4#include <linux/types.h> 5 6#define IPV6_TLV_TNL_ENCAP_LIMIT 4 7#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4 8 9/* don't add encapsulation limit if one isn't present in inner packet */ 10#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1 11/* copy the traffic class field from the inner packet */ 12#define IP6_TNL_F_USE_ORIG_TCLASS 0x2 13/* copy the flowlabel from the inner packet */ 14#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4 15/* being used for Mobile IPv6 */ 16#define IP6_TNL_F_MIP6_DEV 0x8 17/* copy DSCP from the outer packet */ 18#define IP6_TNL_F_RCV_DSCP_COPY 0x10 19 20struct ip6_tnl_parm { 21 char name[IFNAMSIZ]; /* name of tunnel device */ 22 int link; /* ifindex of underlying L2 interface */ 23 __u8 proto; /* tunnel protocol */ 24 __u8 encap_limit; /* encapsulation limit for tunnel */ 25 __u8 hop_limit; /* hop limit for tunnel */ 26 __be32 flowinfo; /* traffic class and flowlabel for tunnel */ 27 __u32 flags; /* tunnel flags */ 28 struct in6_addr laddr; /* local tunnel end-point address */ 29 struct in6_addr raddr; /* remote tunnel end-point address */ 30}; 31 32#endif 33