linux-kernel - [PATCH v2 3/6] arm64: Add audit support

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Date:	Fri, 17 Jan 2014 17:13:16 +0900
From:	AKASHI Takahiro <takahiro.akashi@...aro.org>
To:	viro@...iv.linux.org.uk, eparis@...hat.com, rgb@...hat.com,
	catalin.marinas@....com, will.deacon@....com
Cc:	arndb@...db.de, linux-arm-kernel@...ts.infradead.org,
	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	linux-audit@...hat.com, patches@...aro.org,
	AKASHI Takahiro <takahiro.akashi@...aro.org>
Subject: [PATCH v2 3/6] arm64: Add audit support

On AArch64, audit can be enabled with CONFIG_AUDIT_GENERIC.
Most of audit features are implemented in generic way. This patch
adds a small piece of architecture dependent code.
syscall_get_arch(), which is used in seccomp, should just return
AUDIT_ARCH_*.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>
---
 arch/arm64/include/asm/syscall.h |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index 70ba9d4..3361fec 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -16,7 +16,9 @@
 #ifndef __ASM_SYSCALL_H
 #define __ASM_SYSCALL_H
 
+#include <linux/audit.h>
 #include <linux/err.h>
+#include <linux/sched.h>
 
 
 static inline int syscall_get_nr(struct task_struct *task,
@@ -104,4 +106,14 @@ static inline void syscall_set_arguments(struct task_struct *task,
 	memcpy(&regs->regs[i], args, n * sizeof(args[0]));
 }
 
+static inline int syscall_get_arch(struct task_struct *task,
+				   struct pt_regs *regs)
+{
+#ifdef __AARCH64EB__
+	return AUDIT_ARCH_AARCH64EB;
+#else
+	return AUDIT_ARCH_AARCH64;
+#endif
+}
+
 #endif	/* __ASM_SYSCALL_H */
-- 
1.7.9.5

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