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#ifndef _IP6_TUNNEL_H

#define _IP6_TUNNEL_H

#include <linux/types.h>

#define IPV6_TLV_TNL_ENCAP_LIMIT 4

#define IPV6_DEFAULT_TNL_ENCAP_LIMIT 4

/* don't add encapsulation limit if one isn't present in inner packet */

#define IP6_TNL_F_IGN_ENCAP_LIMIT 0x1

/* copy the traffic class field from the inner packet */

#define IP6_TNL_F_USE_ORIG_TCLASS 0x2

/* copy the flowlabel from the inner packet */

#define IP6_TNL_F_USE_ORIG_FLOWLABEL 0x4

/* being used for Mobile IPv6 */

#define IP6_TNL_F_MIP6_DEV 0x8

/* copy DSCP from the outer packet */

#define IP6_TNL_F_RCV_DSCP_COPY 0x10

/* copy fwmark from inner packet */

#define IP6_TNL_F_USE_ORIG_FWMARK 0x20

struct ip6_tnl_parm {

        char name[IFNAMSIZ];    /* name of tunnel device */

        int link;               /* ifindex of underlying L2 interface */

        __u8 proto;             /* tunnel protocol */

        __u8 encap_limit;       /* encapsulation limit for tunnel */

        __u8 hop_limit;         /* hop limit for tunnel */

        __be32 flowinfo;        /* traffic class and flowlabel for tunnel */

        __u32 flags;            /* tunnel flags */

        struct in6_addr laddr;  /* local tunnel end-point address */

        struct in6_addr raddr;  /* remote tunnel end-point address */

};

struct ip6_tnl_parm2 {

        char name[IFNAMSIZ];    /* name of tunnel device */

        int link;               /* ifindex of underlying L2 interface */

        __u8 proto;             /* tunnel protocol */

        __u8 encap_limit;       /* encapsulation limit for tunnel */

        __u8 hop_limit;         /* hop limit for tunnel */

        __be32 flowinfo;        /* traffic class and flowlabel for tunnel */

        __u32 flags;            /* tunnel flags */

        struct in6_addr laddr;  /* local tunnel end-point address */

        struct in6_addr raddr;  /* remote tunnel end-point address */

        __be16                  i_flags;

        __be16                  o_flags;

        __be32                  i_key;

        __be32                  o_key;

};

#endif