--- /dev/null
+// -*- mode:C; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_CLS_USER_CLIENT_H
+#define CEPH_CLS_USER_CLIENT_H
+
+#include "cls_user_ops.h"
+#include "common/RefCountedObj.h"
+
+namespace librados {
+ class ObjectWriteOperation;
+ class ObjectReadOperation;
+ class IoCtx;
+}
+
+class RGWGetUserHeader_CB : public RefCountedObject {
+public:
+ ~RGWGetUserHeader_CB() override {}
+ virtual void handle_response(int r, cls_user_header& header) = 0;
+};
+
+/*
+ * user objclass
+ */
+
+void cls_user_set_buckets(librados::ObjectWriteOperation& op, list<cls_user_bucket_entry>& entries, bool add);
+void cls_user_complete_stats_sync(librados::ObjectWriteOperation& op);
+void cls_user_remove_bucket(librados::ObjectWriteOperation& op, const cls_user_bucket& bucket);
+void cls_user_bucket_list(librados::ObjectReadOperation& op,
+ const string& in_marker,
+ const string& end_marker,
+ int max_entries,
+ list<cls_user_bucket_entry>& entries,
+ string *out_marker,
+ bool *truncated,
+ int *pret);
+void cls_user_get_header(librados::ObjectReadOperation& op, cls_user_header *header, int *pret);
+int cls_user_get_header_async(librados::IoCtx& io_ctx, string& oid, RGWGetUserHeader_CB *ctx);
+
+#endif