i386/linux/linux-2.3.21/include/linux/if_tunnel.h

   1 #ifndef _IF_TUNNEL_H_
   2 #define _IF_TUNNEL_H_
   3
   4 #define SIOCGETTUNNEL   (SIOCDEVPRIVATE + 0)
   5 #define SIOCADDTUNNEL   (SIOCDEVPRIVATE + 1)
   6 #define SIOCDELTUNNEL   (SIOCDEVPRIVATE + 2)
   7 #define SIOCCHGTUNNEL   (SIOCDEVPRIVATE + 3)
   8
   9 #define GRE_CSUM        __constant_htons(0x8000)
  10 #define GRE_ROUTING     __constant_htons(0x4000)
  11 #define GRE_KEY         __constant_htons(0x2000)
  12 #define GRE_SEQ         __constant_htons(0x1000)
  13 #define GRE_STRICT      __constant_htons(0x0800)
  14 #define GRE_REC         __constant_htons(0x0700)
  15 #define GRE_FLAGS       __constant_htons(0x00F8)
  16 #define GRE_VERSION     __constant_htons(0x0007)
  17
  18 struct ip_tunnel_parm
  19 {
  20         char                    name[IFNAMSIZ];
  21         int                     link;
  22         __u16                   i_flags;
  23         __u16                   o_flags;
  24         __u32                   i_key;
  25         __u32                   o_key;
  26         struct iphdr            iph;
  27 };
  28
  29 #endif /* _IF_TUNNEL_H_ */