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Commit 875cbf3e authored by AKASHI Takahiro's avatar AKASHI Takahiro Committed by Catalin Marinas
Browse files

arm64: Add audit support 



On AArch64, audit is supported through generic lib/audit.c and
compat_audit.c, and so this patch adds arch specific definitions required.

Acked-by Will Deacon <will.deacon@arm.com>
Acked-by: default avatarRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 5701ede8

arch/arm64/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ config ARM64 
	select ARM_AMBA

	select ARM_ARCH_TIMER

	select ARM_GIC

	select AUDIT_ARCH_COMPAT_GENERIC

	select BUILDTIME_EXTABLE_SORT

	select CLONE_BACKWARDS

	select COMMON_CLK
@@ -28,6 +29,7 @@ config ARM64 
	select GENERIC_STRNLEN_USER

	select GENERIC_TIME_VSYSCALL

	select HARDIRQS_SW_RESEND

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_ARCH_JUMP_LABEL

	select HAVE_ARCH_KGDB

	select HAVE_ARCH_TRACEHOOK

arch/arm64/include/asm/syscall.h

+14 −0
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 
#ifndef __ASM_SYSCALL_H

#define __ASM_SYSCALL_H



#include <uapi/linux/audit.h>

#include <linux/compat.h>

#include <linux/err.h>



extern const void *sys_call_table[];
@@ -105,4 +107,16 @@ static inline void syscall_set_arguments(struct task_struct *task, 
	memcpy(&regs->regs[i], args, n * sizeof(args[0]));

}



/*

 * We don't care about endianness (__AUDIT_ARCH_LE bit) here because

 * AArch64 has the same system calls both on little- and big- endian.

 */

static inline int syscall_get_arch(void)

{

	if (is_compat_task())

		return AUDIT_ARCH_ARM;



	return AUDIT_ARCH_AARCH64;

}



#endif	/* __ASM_SYSCALL_H */

include/uapi/linux/audit.h

+1 −0
Original line number Diff line number Diff line
@@ -342,6 +342,7 @@ enum { 
#define __AUDIT_ARCH_64BIT 0x80000000

#define __AUDIT_ARCH_LE	   0x40000000



#define AUDIT_ARCH_AARCH64	(EM_AARCH64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)

#define AUDIT_ARCH_ALPHA	(EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)

#define AUDIT_ARCH_ARM		(EM_ARM|__AUDIT_ARCH_LE)

#define AUDIT_ARCH_ARMEB	(EM_ARM)