[linux-2.6-block.git] / include / linux / netfilter / ipset / ip_set_bitmap.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __IP_SET_BITMAP_H
#define __IP_SET_BITMAP_H

#include <uapi/linux/netfilter/ipset/ip_set_bitmap.h>

#define IPSET_BITMAP_MAX_RANGE	0x0000FFFF

enum {
	IPSET_ADD_STORE_PLAIN_TIMEOUT = -1,
	IPSET_ADD_FAILED = 1,
	IPSET_ADD_START_STORED_TIMEOUT,
};

/* Common functions */

static inline u32
range_to_mask(u32 from, u32 to, u8 *bits)
{
	u32 mask = 0xFFFFFFFE;

	*bits = 32;
	while (--(*bits) > 0 && mask && (to & mask) != from)
		mask <<= 1;

	return mask;
}

#endif /* __IP_SET_BITMAP_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
72205fc6 JK	2	#ifndef __IP_SET_BITMAP_H
	3	#define __IP_SET_BITMAP_H
	4
a8201414	5	#include <uapi/linux/netfilter/ipset/ip_set_bitmap.h>
72205fc6	6
72205fc6 JK	7	#define IPSET_BITMAP_MAX_RANGE 0x0000FFFF
72205fc6 JK	8
4d73de38	9	enum {
702b71e7	10	IPSET_ADD_STORE_PLAIN_TIMEOUT = -1,
4d73de38	11	IPSET_ADD_FAILED = 1,
4d73de38 JK	12	IPSET_ADD_START_STORED_TIMEOUT,
	13	};
	14
72205fc6 JK	15	/* Common functions */
	16
	17	static inline u32
	18	range_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
72205fc6	29	#endif /* __IP_SET_BITMAP_H */