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[v3,1/3] asm-generic: Add generic seccomp.h for secure computing mode 1

Message ID 1394705823-12465-2-git-send-email-takahiro.akashi@linaro.org
State New
Headers show

Commit Message

AKASHI Takahiro March 13, 2014, 10:17 a.m. UTC 
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.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
 include/asm-generic/seccomp.h |   28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 include/asm-generic/seccomp.h

Comments

Catalin Marinas March 14, 2014, 5:08 p.m. UTC | #1 
On Thu, Mar 13, 2014 at 10:17:01AM +0000, AKASHI Takahiro wrote:
> 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.
> 
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> ---
>  include/asm-generic/seccomp.h |   28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 include/asm-generic/seccomp.h

I think you need an Ack from Arnd on this patch. The other patches in
this series look ok but they depend on the ftrace patches, so we'll have
to sort those out first.
diff mbox

Patch

diff --git a/include/asm-generic/seccomp.h b/include/asm-generic/seccomp.h
new file mode 100644
index 0000000..5e97022
--- /dev/null
+++ b/include/asm-generic/seccomp.h
@@ -0,0 +1,28 @@ 
+/*
+ * 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 <asm-generic/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
+#define __NR_seccomp_sigreturn		__NR_rt_sigreturn
+
+#endif /* _ASM_GENERIC_SECCOMP_H */