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 /* copy fwmark from inner packet */ 20 #define IP6_TNL_F_USE_ORIG_FWMARK 0x20 21 22 struct 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 */ 28 __be32 flowinfo; /* traffic class and flowlabel for tunnel */ 29 __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 35