CIFS: Add transform header handling callbacks

We need to recognize and parse transformed packets in demultiplex
thread to find a corresponsing mid and process it further.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 14196e0..35cf62b 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -440,6 +440,9 @@ struct smb_version_operations {
 				 struct smb_rqst *);
 	/* free transform request */
 	void (*free_transform_rq)(struct smb_rqst *);
+	int (*is_transform_hdr)(void *buf);
+	int (*receive_transform)(struct TCP_Server_Info *,
+				 struct mid_q_entry **);
 };
 
 struct smb_version_values {