tools/testing/selftests/landlock/wrappers.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Syscall wrappers
 *
 * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
 * Copyright © 2019-2020 ANSSI
 * Copyright © 2021-2025 Microsoft Corporation
 */

#define _GNU_SOURCE
#include <linux/landlock.h>
#include <linux/sched.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifndef landlock_create_ruleset
static inline int
landlock_create_ruleset(const struct landlock_ruleset_attr *const attr,
			const size_t size, const __u32 flags)
{
	return syscall(__NR_landlock_create_ruleset, attr, size, flags);
}
#endif

#ifndef landlock_add_rule
static inline int landlock_add_rule(const int ruleset_fd,
				    const enum landlock_rule_type rule_type,
				    const void *const rule_attr,
				    const __u32 flags)
{
	return syscall(__NR_landlock_add_rule, ruleset_fd, rule_type, rule_attr,
		       flags);
}
#endif

#ifndef landlock_restrict_self
static inline int landlock_restrict_self(const int ruleset_fd,
					 const __u32 flags)
{
	return syscall(__NR_landlock_restrict_self, ruleset_fd, flags);
}
#endif

static inline pid_t sys_gettid(void)
{
	return syscall(__NR_gettid);
}

static inline pid_t sys_clone3(struct clone_args *args, size_t size)
{
	return syscall(__NR_clone3, args, size);
}

static inline int sys_open_tree(int dfd, const char *filename,
				unsigned int flags)
{
	return syscall(__NR_open_tree, dfd, filename, flags);
}

static inline int sys_fsopen(const char *fsname, unsigned int flags)
{
	return syscall(__NR_fsopen, fsname, flags);
}

static inline int sys_fsconfig(int fs_fd, unsigned int cmd, const char *key,
			       const void *value, int aux)
{
	return syscall(__NR_fsconfig, fs_fd, cmd, key, value, aux);
}

static inline int sys_fsmount(int fs_fd, unsigned int flags,
			      unsigned int attr_flags)
{
	return syscall(__NR_fsmount, fs_fd, flags, attr_flags);
}