arm64: 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 arm64.

Signed-off-by: Kees Cook <keescook@chromium.org>

diff --git a/arch/arm64/include/asm/seccomp.h b/arch/arm64/include/asm/seccomp.h
index c363871..3025623 100644 (file)
--- a/arch/arm64/include/asm/seccomp.h
+++ b/arch/arm64/include/asm/seccomp.h
@@ -19,4 +19,13 @@
 
 #include <asm-generic/seccomp.h>
 
+#define SECCOMP_ARCH_NATIVE            AUDIT_ARCH_AARCH64
+#define SECCOMP_ARCH_NATIVE_NR         NR_syscalls
+#define SECCOMP_ARCH_NATIVE_NAME       "aarch64"
+#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
+
 #endif /* _ASM_SECCOMP_H */