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asm-generic: add generic seccomp.h for secure computing mode 1

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Those values (__NR_seccomp_*) are used solely in secure_computing()
to identify mode 1 system calls. If compat system calls have different
syscall numbers, asm/seccomp.h may override them.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
AKASHI Takahiro 2014-11-28 05:26:36 +00:00 committed by Will Deacon
parent 1014c81d9a
commit 65a2ae8d5b
1 changed files with 30 additions and 0 deletions
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30
include/asm-generic/seccomp.h Normal file
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/*
* include/asm-generic/seccomp.h
*
* Copyright (C) 2014 Linaro Limited
* Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _ASM_GENERIC_SECCOMP_H
#define _ASM_GENERIC_SECCOMP_H
#include <linux/unistd.h>
#if defined(CONFIG_COMPAT) && !defined(__NR_seccomp_read_32)
#define __NR_seccomp_read_32 __NR_read
#define __NR_seccomp_write_32 __NR_write
#define __NR_seccomp_exit_32 __NR_exit
#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
#endif /* CONFIG_COMPAT && ! already defined */
#define __NR_seccomp_read __NR_read
#define __NR_seccomp_write __NR_write
#define __NR_seccomp_exit __NR_exit
#ifndef __NR_seccomp_sigreturn
#define __NR_seccomp_sigreturn __NR_rt_sigreturn
#endif
#endif /* _ASM_GENERIC_SECCOMP_H */