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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>
This commit is contained in:
Günther Noack 2022-10-18 20:22:08 +02:00 committed by Mickaël Salaün
parent 106794c46b
commit 52a13488d1
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1 changed files with 13 additions and 0 deletions
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13
security/landlock/fs.c
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@ -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,