linux-stable/include/asm-generic/seccomp.h
Matt Redfearn c983f0e867 seccomp: Get compat syscalls from asm-generic header
Move retrieval of compat syscall numbers into inline function defined in
asm-generic header so that arches may override it.

[ralf@linux-mips.org: Resolve merge conflict.]

Suggested-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: IMG-MIPSLinuxKerneldevelopers@imgtec.com
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Drewry <wad@chromium.org>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12978/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-13 14:02:00 +02:00

46 lines
1.3 KiB
C

/*
* 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
#ifndef __NR_seccomp_sigreturn_32
#define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn
#endif
#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
#ifdef CONFIG_COMPAT
#ifndef get_compat_mode1_syscalls
static inline const int *get_compat_mode1_syscalls(void)
{
static const int mode1_syscalls_32[] = {
__NR_seccomp_read_32, __NR_seccomp_write_32,
__NR_seccomp_exit_32, __NR_seccomp_sigreturn_32,
0, /* null terminated */
};
return mode1_syscalls_32;
}
#endif
#endif /* CONFIG_COMPAT */
#endif /* _ASM_GENERIC_SECCOMP_H */