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authorGünther Noack <gnoack3000@gmail.com>2022-10-18 20:22:08 +0200
committerMickaël Salaün <mic@digikod.net>2022-10-19 09:01:43 +0200
commit52a13488d1783ae014a3abe15f78810162425e94 (patch)
tree79336c5fb6eaa218ed8bca0c79fa03b5971251cd /security/landlock
parent106794c46b13a2820d3954d7a2892fa1978b4162 (diff)
landlock: Document init_layer_masks() helper
Add kernel-doc to the init_layer_masks() function. Signed-off-by: Günther Noack <gnoack3000@gmail.com> Link: https://lore.kernel.org/r/20221018182216.301684-4-gnoack3000@gmail.com Signed-off-by: Mickaël Salaün <mic@digikod.net>
Diffstat (limited to 'security/landlock')
-rw-r--r--security/landlock/fs.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/security/landlock/fs.c b/security/landlock/fs.c
index 277868e3c6ce..87fde50eb550 100644
--- a/security/landlock/fs.c
+++ b/security/landlock/fs.c
@@ -297,6 +297,19 @@ get_handled_accesses(const struct landlock_ruleset *const domain)
return access_dom & LANDLOCK_MASK_ACCESS_FS;
}
+/**
+ * init_layer_masks - Initialize layer masks from an access request
+ *
+ * Populates @layer_masks such that for each access right in @access_request,
+ * the bits for all the layers are set where this access right is handled.
+ *
+ * @domain: The domain that defines the current restrictions.
+ * @access_request: The requested access rights to check.
+ * @layer_masks: The layer masks to populate.
+ *
+ * Returns: An access mask where each access right bit is set which is handled
+ * in any of the active layers in @domain.
+ */
static inline access_mask_t
init_layer_masks(const struct landlock_ruleset *const domain,
const access_mask_t access_request,