include/linux/netfilter/xt_u32.h

   1 #ifndef _XT_U32_H
   2 #define _XT_U32_H 1
   3
   4 enum xt_u32_ops {
   5         XT_U32_AND,
   6         XT_U32_LEFTSH,
   7         XT_U32_RIGHTSH,
   8         XT_U32_AT,
   9 };
  10
  11 struct xt_u32_location_element {
  12         u_int32_t number;
  13         u_int8_t nextop;
  14 };
  15
  16 struct xt_u32_value_element {
  17         u_int32_t min;
  18         u_int32_t max;
  19 };
  20
  21 /*
  22  * Any way to allow for an arbitrary number of elements?
  23  * For now, I settle with a limit of 10 each.
  24  */
  25 #define XT_U32_MAXSIZE 10
  26
  27 struct xt_u32_test {
  28         struct xt_u32_location_element location[XT_U32_MAXSIZE+1];
  29         struct xt_u32_value_element value[XT_U32_MAXSIZE+1];
  30         u_int8_t nnums;
  31         u_int8_t nvalues;
  32 };
  33
  34 struct xt_u32 {
  35         struct xt_u32_test tests[XT_U32_MAXSIZE+1];
  36         u_int8_t ntests;
  37         u_int8_t invert;
  38 };
  39
  40 #endif /* _XT_U32_H */