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Commit 23fed621 authored by AKASHI Takahiro's avatar AKASHI Takahiro Committed by Eric Paris
Browse files

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: default avatarRichard Guy Briggs <rgb@redhat.com>
Acked-by Will Deacon <will.deacon@arm.com>
Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent b4f0d375

arch/arm64/kernel/ptrace.c

+7 −0
Original line number Diff line number Diff line
@@ -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));