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diff --git a/src/ceph/src/tools/cephfs/MDSUtility.h b/src/ceph/src/tools/cephfs/MDSUtility.h
new file mode 100644
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+++ b/src/ceph/src/tools/cephfs/MDSUtility.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2014 John Spray <john.spray@inktank.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ */
+
+#ifndef MDS_UTILITY_H_
+#define MDS_UTILITY_H_
+
+#include "osdc/Objecter.h"
+#include "mds/FSMap.h"
+#include "messages/MFSMap.h"
+#include "msg/Dispatcher.h"
+#include "msg/Messenger.h"
+#include "auth/Auth.h"
+#include "common/Finisher.h"
+#include "common/Timer.h"
+
+/// MDS Utility
+/**
+ * This class is the parent for MDS utilities, i.e. classes that
+ * need access the objects belonging to the MDS without actually
+ * acting as an MDS daemon themselves.
+ */
+class MDSUtility : public Dispatcher {
+protected:
+  Objecter *objecter;
+  FSMap *fsmap;
+  Messenger *messenger;
+  MonClient *monc;
+
+  Mutex lock;
+  Finisher finisher;
+
+  Context *waiting_for_mds_map;
+
+public:
+  MDSUtility();
+  ~MDSUtility() override;
+
+  void handle_fs_map(MFSMap* m);
+  bool ms_dispatch(Message *m) override;
+  bool ms_handle_reset(Connection *con) override { return false; }
+  void ms_handle_remote_reset(Connection *con) override {}
+  bool ms_handle_refused(Connection *con) override { return false; }
+  bool ms_get_authorizer(int dest_type, AuthAuthorizer **authorizer,
+                         bool force_new) override;
+  int init();
+  void shutdown();
+};
+
+#endif /* MDS_UTILITY_H_ */