root/include/uapi/linux/netfilter/xt_u32.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _XT_U32_H
   3 #define _XT_U32_H 1
   4 
   5 #include <linux/types.h>
   6 
   7 enum xt_u32_ops {
   8         XT_U32_AND,
   9         XT_U32_LEFTSH,
  10         XT_U32_RIGHTSH,
  11         XT_U32_AT,
  12 };
  13 
  14 struct xt_u32_location_element {
  15         __u32 number;
  16         __u8 nextop;
  17 };
  18 
  19 struct xt_u32_value_element {
  20         __u32 min;
  21         __u32 max;
  22 };
  23 
  24 /*
  25  * Any way to allow for an arbitrary number of elements?
  26  * For now, I settle with a limit of 10 each.
  27  */
  28 #define XT_U32_MAXSIZE 10
  29 
  30 struct xt_u32_test {
  31         struct xt_u32_location_element location[XT_U32_MAXSIZE+1];
  32         struct xt_u32_value_element value[XT_U32_MAXSIZE+1];
  33         __u8 nnums;
  34         __u8 nvalues;
  35 };
  36 
  37 struct xt_u32 {
  38         struct xt_u32_test tests[XT_U32_MAXSIZE+1];
  39         __u8 ntests;
  40         __u8 invert;
  41 };
  42 
  43 #endif /* _XT_U32_H */