KEYS: Add an iovec version of KEYCTL_INSTANTIATE
Add a keyctl op (KEYCTL_INSTANTIATE_IOV) that is like KEYCTL_INSTANTIATE, but
takes an iovec array and concatenates the data in-kernel into one buffer.
Since the KEYCTL_INSTANTIATE copies the data anyway, this isn't too much of a
problem.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/include/linux/keyctl.h b/include/linux/keyctl.h
index 7022974..9b0b865 100644
--- a/include/linux/keyctl.h
+++ b/include/linux/keyctl.h
@@ -54,5 +54,6 @@
#define KEYCTL_GET_SECURITY 17 /* get key security label */
#define KEYCTL_SESSION_TO_PARENT 18 /* apply session keyring to parent process */
#define KEYCTL_REJECT 19 /* reject a partially constructed key */
+#define KEYCTL_INSTANTIATE_IOV 20 /* instantiate a partially constructed key */
#endif /* _LINUX_KEYCTL_H */