limits.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Landlock - Limits for different components
 4 *
 5 * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net>
 6 * Copyright © 2018-2020 ANSSI
 7 * Copyright © 2021-2025 Microsoft Corporation
 8 */
 9
10#ifndef _SECURITY_LANDLOCK_LIMITS_H
11#define _SECURITY_LANDLOCK_LIMITS_H
12
13#include <linux/bitops.h>
14#include <linux/limits.h>
15#include <uapi/linux/landlock.h>
16
17/* clang-format off */
18
19#define LANDLOCK_MAX_NUM_LAYERS		16
20#define LANDLOCK_MAX_NUM_RULES		U32_MAX
21
22#define LANDLOCK_LAST_ACCESS_FS		LANDLOCK_ACCESS_FS_IOCTL_DEV
23#define LANDLOCK_MASK_ACCESS_FS		((LANDLOCK_LAST_ACCESS_FS << 1) - 1)
24#define LANDLOCK_NUM_ACCESS_FS		__const_hweight64(LANDLOCK_MASK_ACCESS_FS)
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
30#define LANDLOCK_LAST_SCOPE		LANDLOCK_SCOPE_SIGNAL
31#define LANDLOCK_MASK_SCOPE		((LANDLOCK_LAST_SCOPE << 1) - 1)
32#define LANDLOCK_NUM_SCOPE		__const_hweight64(LANDLOCK_MASK_SCOPE)
33
34#define LANDLOCK_LAST_RESTRICT_SELF	LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF
35#define LANDLOCK_MASK_RESTRICT_SELF	((LANDLOCK_LAST_RESTRICT_SELF << 1) - 1)
36
37/* clang-format on */
38
39#endif /* _SECURITY_LANDLOCK_LIMITS_H */