linux-kernel - [PATCH v4 06/13] x86: add HAVE_SECCOMP_FILTER and seccomp

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Message-Id: <1307133252-23259-6-git-send-email-wad@chromium.org>
Date:	Fri,  3 Jun 2011 15:34:05 -0500
From:	Will Drewry <wad@...omium.org>
To:	linux-kernel@...r.kernel.org
Cc:	kees.cook@...onical.com, torvalds@...ux-foundation.org,
	tglx@...utronix.de, mingo@...e.hu, rostedt@...dmis.org,
	jmorris@...ei.org, paulmck@...ux.vnet.ibm.com,
	Will Drewry <wad@...omium.org>, Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: [PATCH v4 06/13] x86: add HAVE_SECCOMP_FILTER and seccomp_execve

Adds support to the x86 architecture by providing a compatibility
mode wrapper for sys_execve's number and selecting HAVE_SECCOMP_FILTER

Signed-off-by: Will Drewry <wad@...omium.org>
---
 arch/x86/Kconfig                   |    1 +
 arch/x86/include/asm/ia32_unistd.h |    1 +
 arch/x86/include/asm/seccomp_64.h  |    2 ++
 3 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cc6c53a..1843d17 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -64,6 +64,7 @@ config X86
 	select HAVE_TEXT_POKE_SMP
 	select HAVE_GENERIC_HARDIRQS
 	select HAVE_SPARSE_IRQ
+	select HAVE_SECCOMP_FILTER
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_FIND_NEXT_BIT
 	select GENERIC_IRQ_PROBE
diff --git a/arch/x86/include/asm/ia32_unistd.h b/arch/x86/include/asm/ia32_unistd.h
index 976f6ec..8ed2922 100644
--- a/arch/x86/include/asm/ia32_unistd.h
+++ b/arch/x86/include/asm/ia32_unistd.h
@@ -12,6 +12,7 @@
 #define __NR_ia32_exit		  1
 #define __NR_ia32_read		  3
 #define __NR_ia32_write		  4
+#define __NR_ia32_execve	 11
 #define __NR_ia32_sigreturn	119
 #define __NR_ia32_rt_sigreturn	173
 
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
index 84ec1bd..85c4219 100644
--- a/arch/x86/include/asm/seccomp_64.h
+++ b/arch/x86/include/asm/seccomp_64.h
@@ -8,10 +8,12 @@
 #define __NR_seccomp_write __NR_write
 #define __NR_seccomp_exit __NR_exit
 #define __NR_seccomp_sigreturn __NR_rt_sigreturn
+#define __NR_seccomp_execve __NR_execve
 
 #define __NR_seccomp_read_32 __NR_ia32_read
 #define __NR_seccomp_write_32 __NR_ia32_write
 #define __NR_seccomp_exit_32 __NR_ia32_exit
 #define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
+#define __NR_seccomp_execve_32 __NR_ia32_execve
 
 #endif /* _ASM_X86_SECCOMP_64_H */
-- 
1.7.0.4

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