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 --- 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 0bf1955..0568dc9 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>
@@ -1097,11 +1099,16 @@ 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));