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Diffstat (limited to 'Documentation/security/keys/request-key.rst')
| -rw-r--r-- | Documentation/security/keys/request-key.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/security/keys/request-key.rst b/Documentation/security/keys/request-key.rst index 07af991463b5..7caedc4d29f1 100644 --- a/Documentation/security/keys/request-key.rst +++ b/Documentation/security/keys/request-key.rst @@ -36,6 +36,11 @@ or:: size_t callout_len, void *aux); +or:: + + struct key *request_key_rcu(const struct key_type *type, + const char *description); + Or by userspace invoking the request_key system call:: key_serial_t request_key(const char *type, @@ -57,6 +62,10 @@ The two async in-kernel calls may return keys that are still in the process of being constructed. The two non-async ones will wait for construction to complete first. +The request_key_rcu() call is like the in-kernel request_key() call, except +that it doesn't check for keys that are under construction and doesn't attempt +to construct missing keys. + The userspace interface links the key to a keyring associated with the process to prevent the key from going away, and returns the serial number of the key to the caller. |