[PATCH 1/2] arm64: Enable seccomp architecture tracking

From: Kees Cook
Date: Wed Oct 28 2020 - 17:52:48 EST


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 arm64.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
arch/arm64/include/asm/seccomp.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/arch/arm64/include/asm/seccomp.h b/arch/arm64/include/asm/seccomp.h
index c36387170936..40f325e7a404 100644
--- a/arch/arm64/include/asm/seccomp.h
+++ b/arch/arm64/include/asm/seccomp.h
@@ -19,4 +19,19 @@

#include <asm-generic/seccomp.h>

+#ifdef CONFIG_ARM64
+# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_AARCH64
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "arm64"
+# ifdef CONFIG_COMPAT
+# define SECCOMP_ARCH_COMPAT AUDIT_ARCH_ARM
+# define SECCOMP_ARCH_COMPAT_NR __NR_compat_syscalls
+# define SECCOMP_ARCH_COMPAT_NAME "arm"
+# endif
+#else /* !CONFIG_ARM64 */
+# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_ARM
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "arm"
+#endif
+
#endif /* _ASM_SECCOMP_H */
--
2.25.1