diff --git a/sql/wsrep_plugin.h b/sql/wsrep_plugin.h
new file mode 100644
index 00000000000..531d1d26a48
--- /dev/null
+++ b/sql/wsrep_plugin.h
@@ -0,0 +1,36 @@
+/* Copyright 2022 Codership Oy <info@codership.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+#ifndef WSREP_PLUGIN_H
+#define WSREP_PLUGIN_H
+
+class option;
+struct st_mysql_sys_var;
+
+/* Returns true if provider plugin was initialized and is active */
+bool wsrep_provider_plugin_enabled();
+
+/* Set the given sysvars array for provider plugin.
+   Must be called before the plugin is initialized. */
+void wsrep_provider_plugin_set_sysvars(st_mysql_sys_var **);
+
+/* Construct a sysvar corresponding to the given provider option */
+struct st_mysql_sys_var *
+wsrep_make_sysvar_for_option(wsrep::provider_options::option *);
+
+/* Destroy a sysvar created by make_sysvar_for_option */
+void wsrep_destroy_sysvar(struct st_mysql_sys_var *);
+
+#endif /* WSREP_PLUGIN_H */
diff --git a/wsrep-lib b/wsrep-lib
index f8ff2cfdd4c..de3d7b63eab 160000
--- a/wsrep-lib
+++ b/wsrep-lib
@@ -1 +1 @@
-Subproject commit f8ff2cfdd4c6424ffd96fc53bcc0f2e1d9ffe137
+Subproject commit de3d7b63eab188a54ce5d2f635a610991bf563bc