Unverified Commit 5147779d authored by Mickaël Salaün's avatar Mickaël Salaün
Browse files

selftests/landlock: Add wrappers.h 

Extract syscall wrappers to make them usable by standalone binaries (see
next commit).

Cc: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20250108154338.1129069-22-mic@digikod.net


[mic: Fix comments]
Signed-off-by: default avatarMickaël Salaün <mic@digikod.net>
parent 2107c351

tools/testing/selftests/landlock/common.h

+1 −36
Original line number Diff line number Diff line
@@ -9,17 +9,15 @@ 


#include <arpa/inet.h>

#include <errno.h>

#include <linux/landlock.h>

#include <linux/securebits.h>

#include <sys/capability.h>

#include <sys/socket.h>

#include <sys/syscall.h>

#include <sys/types.h>

#include <sys/un.h>

#include <sys/wait.h>

#include <unistd.h>



#include "../kselftest_harness.h"

#include "wrappers.h"



#define TMP_DIR "tmp"
@@ -30,34 +28,6 @@ 
/* TEST_F_FORK() should not be used for new tests. */

#define TEST_F_FORK(fixture_name, test_name) TEST_F(fixture_name, test_name)



#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 void _init_caps(struct __test_metadata *const _metadata, bool drop_all)

{

	cap_t cap_p;
@@ -250,11 +220,6 @@ struct service_fixture { 
	};

};



static pid_t __maybe_unused sys_gettid(void)

{

	return syscall(__NR_gettid);

}



static void __maybe_unused set_unix_address(struct service_fixture *const srv,

					    const unsigned short index)

{

tools/testing/selftests/landlock/wrappers.h

0 → 100644
+47 −0
Original line number Diff line number Diff line 
/* 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 <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);

}