diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index 5ad69e244fc..9920a3f3e7a 100644
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -430,8 +430,12 @@ char *fill_domain_username_talloc(TALLOC_CTX *ctx,
 				  const char *user,
 				  bool can_assume);
 struct winbindd_cli_state *winbindd_client_list(void);
+struct winbindd_cli_state *winbindd_client_list_tail(void);
+struct winbindd_cli_state *
+winbindd_client_list_prev(struct winbindd_cli_state *cli);
 void winbindd_add_client(struct winbindd_cli_state *cli);
 void winbindd_remove_client(struct winbindd_cli_state *cli);
+void winbindd_promote_client(struct winbindd_cli_state *cli);
 int winbindd_num_clients(void);
 NTSTATUS lookup_usergroups_cached(struct winbindd_domain *domain,
 				  TALLOC_CTX *mem_ctx,
diff --git a/source3/winbindd/winbindd_util.c b/source3/winbindd/winbindd_util.c
index d73327c311b..0108504e72a 100644
--- a/source3/winbindd/winbindd_util.c
+++ b/source3/winbindd/winbindd_util.c
@@ -1206,6 +1206,21 @@ struct winbindd_cli_state *winbindd_client_list(void)
 	return _client_list;
 }
 
+/* Return list-tail of all connected clients */
+
+struct winbindd_cli_state *winbindd_client_list_tail(void)
+{
+	return DLIST_TAIL(_client_list);
+}
+
+/* Return previous (read:newer) client in list */
+
+struct winbindd_cli_state *
+winbindd_client_list_prev(struct winbindd_cli_state *cli)
+{
+	return DLIST_PREV(cli);
+}
+
 /* Add a connection to the list */
 
 void winbindd_add_client(struct winbindd_cli_state *cli)
@@ -1222,6 +1237,13 @@ void winbindd_remove_client(struct winbindd_cli_state *cli)
 	_num_clients--;
 }
 
+/* Move a client to head or list */
+
+void winbindd_promote_client(struct winbindd_cli_state *cli)
+{
+	DLIST_PROMOTE(_client_list, cli);
+}
+
 /* Return number of open clients */
 
 int winbindd_num_clients(void)