LXR linux/include/linux/netfilter/ipset/ip_set

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __IP_SET_BITMAP_H
   3#define __IP_SET_BITMAP_H
   4
   5#include <uapi/linux/netfilter/ipset/ip_set_bitmap.h>
   6
   7#define IPSET_BITMAP_MAX_RANGE  0x0000FFFF
   8
   9enum {
  10        IPSET_ADD_STORE_PLAIN_TIMEOUT = -1,
  11        IPSET_ADD_FAILED = 1,
  12        IPSET_ADD_START_STORED_TIMEOUT,
  13};
  14
  15/* Common functions */
  16
  17static inline u32
  18range_to_mask(u32 from, u32 to, u8 *bits)
  19{
  20        u32 mask = 0xFFFFFFFE;
  21
  22        *bits = 32;
  23        while (--(*bits) > 0 && mask && (to & mask) != from)
  24                mask <<= 1;
  25
  26        return mask;
  27}
  28
  29#endif /* __IP_SET_BITMAP_H */
  30