server: Store sharing state for named pipes.
diff --git a/server/protocol.def b/server/protocol.def
index 123f16a..71524a4 100644
--- a/server/protocol.def
+++ b/server/protocol.def
@@ -2186,6 +2186,7 @@
     unsigned int   attributes;   /* object attributes */
     obj_handle_t   rootdir;      /* root directory */
     unsigned int   options;
+    unsigned int   sharing;
     unsigned int   maxinstances;
     unsigned int   outsize;
     unsigned int   insize;