From bf11863d45eb3dac0d0cf1f818ded11ade6e28d3 Mon Sep 17 00:00:00 2001 From: AKASHI Takahiro Date: Fri, 4 Jul 2014 08:28:30 +0100 Subject: [PATCH] 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 Acked-by: Richard Guy Briggs Signed-off-by: AKASHI Takahiro Signed-off-by: Catalin Marinas Conflicts: arch/arm64/Kconfig include/uapi/linux/audit.h Change-Id: Ia6d7b25786843d43191e67d514928e3ecba11e2f --- arch/arm64/Kconfig | 2 ++ arch/arm64/include/asm/syscall.h | 14 ++++++++++++++ include/uapi/linux/audit.h | 2 ++ 3 files changed, 18 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 71c2a070ace4..2221396c2a6c 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -7,6 +7,7 @@ config ARM64 select ARM_AMBA select ARM_ARCH_TIMER select ARM_GIC + select AUDIT_ARCH_COMPAT_GENERIC select CLONE_BACKWARDS select COMMON_CLK select GENERIC_CLOCKEVENTS @@ -18,6 +19,7 @@ config ARM64 select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL select HARDIRQS_SW_RESEND + select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_TRACEHOOK select HAVE_DEBUG_BUGVERBOSE select HAVE_DEBUG_KMEMLEAK diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h index 89c047f9a971..d7de9333f714 100644 --- a/arch/arm64/include/asm/syscall.h +++ b/arch/arm64/include/asm/syscall.h @@ -16,6 +16,8 @@ #ifndef __ASM_SYSCALL_H #define __ASM_SYSCALL_H +#include +#include #include @@ -98,4 +100,16 @@ static inline void syscall_set_arguments(struct task_struct *task, memcpy(®s->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 */ diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 75cef3fd97ad..ce8750f8788a 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -324,6 +324,8 @@ enum { /* distinguish syscall tables */ #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) -- 2.34.1