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authorDavid Howells <dhowells@redhat.com>2006-01-06 00:11:24 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:33:29 -0800
commit8d9067bda99c68e1a17d93e78cf3a5a3f67e0c35 (patch)
tree6f3c7fe665012c456b57840c290eafd4deabbeb2 /security/keys/key.c
parent32725ad8430b58e42c5d54757ce7871e680d05cb (diff)
downloadlinux-2.6.38-lt-ux500-8d9067bda99c68e1a17d93e78cf3a5a3f67e0c35.tar.gz
[PATCH] Keys: Remove key duplication
Remove the key duplication stuff since there's nothing that uses it, no way to get at it and it's awkward to deal with for LSM purposes. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'security/keys/key.c')
-rw-r--r--security/keys/key.c56
1 files changed, 3 insertions, 53 deletions
diff --git a/security/keys/key.c b/security/keys/key.c
index 01bcfecb7ea..bb036623d0a 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -240,9 +240,9 @@ static inline void key_alloc_serial(struct key *key)
/*
* allocate a key of the specified type
* - update the user's quota to reflect the existence of the key
- * - called from a key-type operation with key_types_sem read-locked by either
- * key_create_or_update() or by key_duplicate(); this prevents unregistration
- * of the key type
+ * - called from a key-type operation with key_types_sem read-locked by
+ * key_create_or_update()
+ * - this prevents unregistration of the key type
* - upon return the key is as yet uninstantiated; the caller needs to either
* instantiate the key or discard it before returning
*/
@@ -889,56 +889,6 @@ EXPORT_SYMBOL(key_update);
/*****************************************************************************/
/*
- * duplicate a key, potentially with a revised description
- * - must be supported by the keytype (keyrings for instance can be duplicated)
- */
-struct key *key_duplicate(struct key *source, const char *desc)
-{
- struct key *key;
- int ret;
-
- key_check(source);
-
- if (!desc)
- desc = source->description;
-
- down_read(&key_types_sem);
-
- ret = -EINVAL;
- if (!source->type->duplicate)
- goto error;
-
- /* allocate and instantiate a key */
- key = key_alloc(source->type, desc, current->fsuid, current->fsgid,
- source->perm, 0);
- if (IS_ERR(key))
- goto error_k;
-
- down_read(&source->sem);
- ret = key->type->duplicate(key, source);
- up_read(&source->sem);
- if (ret < 0)
- goto error2;
-
- atomic_inc(&key->user->nikeys);
- set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
-
- error_k:
- up_read(&key_types_sem);
- out:
- return key;
-
- error2:
- key_put(key);
- error:
- up_read(&key_types_sem);
- key = ERR_PTR(ret);
- goto out;
-
-} /* end key_duplicate() */
-
-/*****************************************************************************/
-/*
* revoke a key
*/
void key_revoke(struct key *key)