key_permission

Name:Check to see whether permission is granted to use a key in the desired way.

Proto:static inline int key_permission(const key_ref_t key_ref, unsigned perm)

Type:int

Parameter:

Type	Parameter	Name
const key_ref_t	key_ref
unsigned	perm

189

Return key_task_permission(key_ref, current_cred - Access the current task's subjective credentials* Access the subjective credentials of the current task. RCU-safe,* since nobody else can modify it.(), perm)

**Caller**
Name	Describe
__key_update	Attempt to update an existing key.* The key is given to us with an incremented refcount that we need to discard* if we get an error.
key_create_or_update	key_create_or_update - Update or create and instantiate a key.@keyring_ref: A pointer to the destination keyring with possession flag.@type: The type of key.*@description: The searchable description for the key.
key_update	key_update - Update a key's contents.@key_ref: The pointer (plus possession flag) to the key.@payload: The data to be used to update the key.@plen: The length of @payload. Attempt to update the contents of a key with the given payload data. The
find_keyring_by_name	Find a keyring with the specified name
keyctl_keyring_search	Search the specified keyring and any keyrings it links to for a matching* key
keyctl_read_key	Read a key's payload
construct_get_dest_keyring	Get the appropriate destination keyring for the request.* The keyring selected is returned with an extra reference upon it which the* caller must release.

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