From c0d26792d44d8292da0db8d6c11adc5ac69c09a9 Mon Sep 17 00:00:00 2001
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Date: Fri, 4 Jul 2014 08:28:31 +0100
Subject: [PATCH] arm64: audit: Add audit hook in syscall_trace_enter/exit()
This patch adds auditing functions on entry to or exit from
every system call invocation.
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Acked-by Will Deacon <will.deacon@arm.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
arch/arm64/kernel/ptrace.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 9fde010c945f0..70526cfda056e 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -19,6 +19,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -39,6 +40,7 @@
#include <asm/compat.h>
#include <asm/debug-monitors.h>
#include <asm/pgtable.h>
+#include <asm/syscall.h>
#include <asm/traps.h>
#include <asm/system_misc.h>
@@ -1113,11 +1115,16 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
trace_sys_enter(regs, regs->syscallno);
+ audit_syscall_entry(syscall_get_arch(), regs->syscallno,
+ regs->orig_x0, regs->regs[1], regs->regs[2], regs->regs[3]);
+
return regs->syscallno;
}
asmlinkage void syscall_trace_exit(struct pt_regs *regs)
{
+ audit_syscall_exit(regs);
+
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
trace_sys_exit(regs, regs_return_value(regs));
--
2.39.5