/* key.c: basic authentication token and access key management
*
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2004-6 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
DECLARE_RWSEM(key_construction_sem);
/* any key who's type gets unegistered will be re-typed to this */
-struct key_type key_type_dead = {
+static struct key_type key_type_dead = {
.name = "dead",
};
* its description */
if (!not_in_quota) {
spin_lock(&user->lock);
- if (user->qnkeys + 1 >= KEYQUOTA_MAX_KEYS &&
+ if (user->qnkeys + 1 >= KEYQUOTA_MAX_KEYS ||
user->qnbytes + quotalen >= KEYQUOTA_MAX_BYTES
)
goto no_quota;
key_check(keyring);
+ key_ref = ERR_PTR(-ENOTDIR);
+ if (keyring->type != &key_type_keyring)
+ goto error_2;
+
down_write(&keyring->sem);
/* if we're going to allocate a new key, we're going to have
goto error_3;
}
- /* search for an existing key of the same type and description in the
- * destination keyring
+ /* if it's possible to update this type of key, search for an existing
+ * key of the same type and description in the destination keyring and
+ * update that instead if possible
*/
- key_ref = __keyring_search_one(keyring_ref, ktype, description, 0);
- if (!IS_ERR(key_ref))
- goto found_matching_key;
+ if (ktype->update) {
+ key_ref = __keyring_search_one(keyring_ref, ktype, description,
+ 0);
+ if (!IS_ERR(key_ref))
+ goto found_matching_key;
+ }
/* decide on the permissions we want */
perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR;