if_tunnel.h

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#ifndef _UAPI_IF_TUNNEL_H_
#define _UAPI_IF_TUNNEL_H_

#include <linux/types.h>
#include <asm/byteorder.h>


#define SIOCGETTUNNEL   (SIOCDEVPRIVATE + 0)
#define SIOCADDTUNNEL   (SIOCDEVPRIVATE + 1)
#define SIOCDELTUNNEL   (SIOCDEVPRIVATE + 2)
#define SIOCCHGTUNNEL   (SIOCDEVPRIVATE + 3)
#define SIOCGETPRL      (SIOCDEVPRIVATE + 4)
#define SIOCADDPRL      (SIOCDEVPRIVATE + 5)
#define SIOCDELPRL      (SIOCDEVPRIVATE + 6)
#define SIOCCHGPRL      (SIOCDEVPRIVATE + 7)
#define SIOCGET6RD      (SIOCDEVPRIVATE + 8)
#define SIOCADD6RD      (SIOCDEVPRIVATE + 9)
#define SIOCDEL6RD      (SIOCDEVPRIVATE + 10)
#define SIOCCHG6RD      (SIOCDEVPRIVATE + 11)

#define GRE_CSUM    __cpu_to_be16(0x8000)
#define GRE_ROUTING __cpu_to_be16(0x4000)
#define GRE_KEY     __cpu_to_be16(0x2000)
#define GRE_SEQ     __cpu_to_be16(0x1000)
#define GRE_STRICT  __cpu_to_be16(0x0800)
#define GRE_REC     __cpu_to_be16(0x0700)
#define GRE_FLAGS   __cpu_to_be16(0x00F8)
#define GRE_VERSION __cpu_to_be16(0x0007)

struct ip_tunnel_parm {
    char            name[IFNAMSIZ];
    int         link;
    __be16          i_flags;
    __be16          o_flags;
    __be32          i_key;
    __be32          o_key;
    struct iphdr        iph;
};

/* SIT-mode i_flags */
#define SIT_ISATAP  0x0001

struct ip_tunnel_prl {
    __be32          addr;
    __u16           flags;
    __u16           __reserved;
    __u32           datalen;
    __u32           __reserved2;
    /* data follows */
};

/* PRL flags */
#define PRL_DEFAULT     0x0001

struct ip_tunnel_6rd {
    struct in6_addr     prefix;
    __be32          relay_prefix;
    __u16           prefixlen;
    __u16           relay_prefixlen;
};

enum {
    IFLA_GRE_UNSPEC,
    IFLA_GRE_LINK,
    IFLA_GRE_IFLAGS,
    IFLA_GRE_OFLAGS,
    IFLA_GRE_IKEY,
    IFLA_GRE_OKEY,
    IFLA_GRE_LOCAL,
    IFLA_GRE_REMOTE,
    IFLA_GRE_TTL,
    IFLA_GRE_TOS,
    IFLA_GRE_PMTUDISC,
    IFLA_GRE_ENCAP_LIMIT,
    IFLA_GRE_FLOWINFO,
    IFLA_GRE_FLAGS,
    __IFLA_GRE_MAX,
};

#define IFLA_GRE_MAX    (__IFLA_GRE_MAX - 1)

/* VTI-mode i_flags */
#define VTI_ISVTI 0x0001

enum {
    IFLA_VTI_UNSPEC,
    IFLA_VTI_LINK,
    IFLA_VTI_IKEY,
    IFLA_VTI_OKEY,
    IFLA_VTI_LOCAL,
    IFLA_VTI_REMOTE,
    __IFLA_VTI_MAX,
};

#define IFLA_VTI_MAX    (__IFLA_VTI_MAX - 1)
#endif /* _UAPI_IF_TUNNEL_H_ */