summaryrefslogtreecommitdiffstats
path: root/security/landlock/limits.h
diff options
context:
space:
mode:
Diffstat (limited to 'security/landlock/limits.h')
-rw-r--r--security/landlock/limits.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/security/landlock/limits.h b/security/landlock/limits.h
new file mode 100644
index 000000000..b54184ab9
--- /dev/null
+++ b/security/landlock/limits.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Landlock LSM - Limits for different components
+ *
+ * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2018-2020 ANSSI
+ */
+
+#ifndef _SECURITY_LANDLOCK_LIMITS_H
+#define _SECURITY_LANDLOCK_LIMITS_H
+
+#include <linux/bitops.h>
+#include <linux/limits.h>
+#include <uapi/linux/landlock.h>
+
+/* clang-format off */
+
+#define LANDLOCK_MAX_NUM_LAYERS 16
+#define LANDLOCK_MAX_NUM_RULES U32_MAX
+
+#define LANDLOCK_LAST_ACCESS_FS LANDLOCK_ACCESS_FS_REFER
+#define LANDLOCK_MASK_ACCESS_FS ((LANDLOCK_LAST_ACCESS_FS << 1) - 1)
+#define LANDLOCK_NUM_ACCESS_FS __const_hweight64(LANDLOCK_MASK_ACCESS_FS)
+
+/* clang-format on */
+
+#endif /* _SECURITY_LANDLOCK_LIMITS_H */