1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Landlock LSM - Limits for different components
4 *
5 * Copyright �� 2016-2020 Micka��l Sala��n <mic@digikod.net>
6 * Copyright �� 2018-2020 ANSSI
7 */
8
9#ifndef _SECURITY_LANDLOCK_LIMITS_H
10#define _SECURITY_LANDLOCK_LIMITS_H
11
12#include <linux/bitops.h>
13#include <linux/limits.h>
14#include <uapi/linux/landlock.h>
15
16/* clang-format off */
17
18#define LANDLOCK_MAX_NUM_LAYERS		16
19#define LANDLOCK_MAX_NUM_RULES		U32_MAX
20
21#define LANDLOCK_LAST_ACCESS_FS		LANDLOCK_ACCESS_FS_TRUNCATE
22#define LANDLOCK_MASK_ACCESS_FS		((LANDLOCK_LAST_ACCESS_FS << 1) - 1)
23#define LANDLOCK_NUM_ACCESS_FS		__const_hweight64(LANDLOCK_MASK_ACCESS_FS)
24#define LANDLOCK_SHIFT_ACCESS_FS	0
25
26#define LANDLOCK_LAST_ACCESS_NET	LANDLOCK_ACCESS_NET_CONNECT_TCP
27#define LANDLOCK_MASK_ACCESS_NET	((LANDLOCK_LAST_ACCESS_NET << 1) - 1)
28#define LANDLOCK_NUM_ACCESS_NET		__const_hweight64(LANDLOCK_MASK_ACCESS_NET)
29#define LANDLOCK_SHIFT_ACCESS_NET	LANDLOCK_NUM_ACCESS_FS
30
31/* clang-format on */
32
33#endif /* _SECURITY_LANDLOCK_LIMITS_H */
34