1 files changed, 94 insertions, 0 deletions
diff --git a/src/mon/FSCommands.h b/src/mon/FSCommands.h
new file mode 100644
index 000000000..a87141296
--- /dev/null
+++ b/src/mon/FSCommands.h
@@ -0,0 +1,94 @@
+// -*- 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) 2017 Red Hat Ltd
+ *
+ * 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 FS_COMMANDS_H_
+#define FS_COMMANDS_H_
+
+#include "Monitor.h"
+#include "CommandHandler.h"
+
+#include "osd/OSDMap.h"
+#include "mds/FSMap.h"
+
+#include <string>
+#include <ostream>
+
+class FileSystemCommandHandler : protected CommandHandler
+{
+protected:
+  std::string prefix;
+
+  enum {
+    POOL_METADATA,
+    POOL_DATA_DEFAULT,
+    POOL_DATA_EXTRA,
+  };
+  /**
+   * Return 0 if the pool is suitable for use with CephFS, or
+   * in case of errors return a negative error code, and populate
+   * the passed ostream with an explanation.
+   *
+   * @param metadata whether the pool will be for metadata (stricter checks)
+   */
+  int _check_pool(
+      OSDMap &osd_map,
+      const int64_t pool_id,
+      int type,
+      bool force,
+      std::ostream *ss,
+      bool allow_overlay = false) const;
+
+  virtual std::string const &get_prefix() const {return prefix;}
+
+public:
+  FileSystemCommandHandler(const std::string &prefix_)
+    : prefix(prefix_)
+  {}
+
+  virtual ~FileSystemCommandHandler()
+  {}
+
+  int is_op_allowed(const MonOpRequestRef& op, const FSMap& fsmap,
+		    const cmdmap_t& cmdmap, std::ostream &ss) const;
+
+  int can_handle(std::string const &prefix_, MonOpRequestRef& op, FSMap& fsmap,
+	         const cmdmap_t& cmdmap, std::ostream &ss) const
+  {
+    if (get_prefix() != prefix_) {
+      return 0;
+    }
+
+    if (get_prefix() == "fs new" || get_prefix() == "fs flag set") {
+      return 1;
+    }
+
+    return is_op_allowed(op, fsmap, cmdmap, ss);
+  }
+
+  static std::list<std::shared_ptr<FileSystemCommandHandler> > load(Paxos *paxos);
+
+  virtual bool batched_propose() {
+    return false;
+  }
+
+  virtual int handle(
+    Monitor *mon,
+    FSMap &fsmap,
+    MonOpRequestRef op,
+    const cmdmap_t& cmdmap,
+    std::ostream &ss) = 0;
+};
+
+#endif