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powerpc: Enable seccomp architecture tracking 

To enable seccomp constant action bitmaps, we need to have a static
mapping to the audit architecture and system call table size. Add these
for powerpc.

__LITTLE_ENDIAN__ is used here instead of CONFIG_CPU_LITTLE_ENDIAN
to keep it consistent with asm/syscall.h.

Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/0b64925362671cdaa26d01bfe50b3ba5e164adfd.1605101222.git.yifeifz2@illinois.edu
This commit is contained in:
YiFei Zhu 2020-11-11 07:33:49 -06:00 committed by Kees Cook
parent 6aa7923c87
commit e7bcb4622d
1 changed files with 23 additions and 0 deletions
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23
arch/powerpc/include/asm/seccomp.h
View File

@ -8,4 +8,27 @@
#include <asm-generic/seccomp.h>
#ifdef __LITTLE_ENDIAN__
#define __SECCOMP_ARCH_LE __AUDIT_ARCH_LE
#define __SECCOMP_ARCH_LE_NAME "le"
#else
#define __SECCOMP_ARCH_LE 0
#define __SECCOMP_ARCH_LE_NAME
#endif
#ifdef CONFIG_PPC64
# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC64 | __SECCOMP_ARCH_LE)
# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
# define SECCOMP_ARCH_NATIVE_NAME "ppc64" __SECCOMP_ARCH_LE_NAME
# ifdef CONFIG_COMPAT
# define SECCOMP_ARCH_COMPAT (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
# define SECCOMP_ARCH_COMPAT_NR NR_syscalls
# define SECCOMP_ARCH_COMPAT_NAME "ppc" __SECCOMP_ARCH_LE_NAME
# endif
#else /* !CONFIG_PPC64 */
# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
# define SECCOMP_ARCH_NATIVE_NAME "ppc" __SECCOMP_ARCH_LE_NAME
#endif
#endif /* _ASM_POWERPC_SECCOMP_H */