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| author |   AKASHI Takahiro <takahiro.akashi@linaro.org> | 2014-07-04 08:28:30 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2014-07-10 11:06:00 +0100 |
| commit | 875cbf3e4614cfdcc7f65033e25292aec80f09c0 (patch) | |
| tree | 08fdfc968a42afb6b67ddd13fe8ede7a70dbe975 | |
| parent | arm64: audit: Add audit hook in syscall_trace_enter/exit() (diff) | |
| download | wireguard-linux-875cbf3e4614cfdcc7f65033e25292aec80f09c0.tar.xz wireguard-linux-875cbf3e4614cfdcc7f65033e25292aec80f09c0.zip | |
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: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/syscall.h | 14 | ||||
| -rw-r--r-- | include/uapi/linux/audit.h | 1 |
3 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1cb806529393..ce6e733e0c05 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -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 diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h index 383771eb0b87..709a574468f0 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 <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(®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 cf6714752b69..3b9ff33e1768 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -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) |