server: Add infrastructure for ioctl server request.
diff --git a/server/file.c b/server/file.c
index 8e10847..a45c340 100644
--- a/server/file.c
+++ b/server/file.c
@@ -94,6 +94,7 @@
     default_poll_event,           /* poll_event */
     file_flush,                   /* flush */
     file_get_fd_type,             /* get_fd_type */
+    default_fd_ioctl,             /* ioctl */
     default_fd_queue_async,       /* queue_async */
     default_fd_reselect_async,    /* reselect_async */
     default_fd_cancel_async       /* cancel_async */