export ncr_key_clear(). And disallow key derivation from wrapping keys.

1 files changed, 2 insertions, 0 deletions

diff --git a/ncr-int.h b/ncr-int.h
index df53ce3..9f7ee0d 100644
--- a/ncr-int.h
+++ b/ncr-int.h
@@ -110,6 +110,8 @@ int ncr_ioctl(struct ncr_lists*, struct file *filp,
 /* key derivation */
 int ncr_key_derive(struct ncr_lists *lst, void __user* arg);
 
+void ncr_key_clear(struct key_item_st* item);
+
 /* key handling */
 int ncr_key_init(struct ncr_lists *lst, void __user* arg);
 int ncr_key_deinit(struct ncr_lists *lst, void __user* arg);