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diff --git a/src/ceph/src/tools/rbd_mirror/types.h b/src/ceph/src/tools/rbd_mirror/types.h
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+++ b/src/ceph/src/tools/rbd_mirror/types.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_RBD_MIRROR_TYPES_H
+#define CEPH_RBD_MIRROR_TYPES_H
+
+#include <iostream>
+#include <memory>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "include/rados/librados.hpp"
+#include "include/rbd/librbd.hpp"
+
+namespace rbd {
+namespace mirror {
+
+typedef shared_ptr<librados::Rados> RadosRef;
+typedef shared_ptr<librados::IoCtx> IoCtxRef;
+typedef shared_ptr<librbd::Image> ImageRef;
+
+struct ImageId {
+  std::string global_id;
+  std::string id;
+
+  explicit ImageId(const std::string &global_id) : global_id(global_id) {
+  }
+  ImageId(const std::string &global_id, const std::string &id)
+    : global_id(global_id), id(id) {
+  }
+
+  inline bool operator==(const ImageId &rhs) const {
+    return (global_id == rhs.global_id && id == rhs.id);
+  }
+  inline bool operator<(const ImageId &rhs) const {
+    return global_id < rhs.global_id;
+  }
+};
+
+std::ostream &operator<<(std::ostream &, const ImageId &image_id);
+
+typedef std::set<ImageId> ImageIds;
+
+struct Peer {
+  std::string peer_uuid;
+  librados::IoCtx io_ctx;
+
+  Peer() {
+  }
+  Peer(const std::string &peer_uuid) : peer_uuid(peer_uuid) {
+  }
+  Peer(const std::string &peer_uuid, librados::IoCtx& io_ctx)
+    : peer_uuid(peer_uuid), io_ctx(io_ctx) {
+  }
+
+  inline bool operator<(const Peer &rhs) const {
+    return peer_uuid < rhs.peer_uuid;
+  }
+};
+
+typedef std::set<Peer> Peers;
+
+struct peer_t {
+  peer_t() = default;
+  peer_t(const std::string &uuid, const std::string &cluster_name,
+	 const std::string &client_name)
+    : uuid(uuid), cluster_name(cluster_name), client_name(client_name)
+  {
+  }
+  peer_t(const librbd::mirror_peer_t &peer) :
+    uuid(peer.uuid),
+    cluster_name(peer.cluster_name),
+    client_name(peer.client_name)
+  {
+  }
+  std::string uuid;
+  std::string cluster_name;
+  std::string client_name;
+  bool operator<(const peer_t &rhs) const {
+    return this->uuid < rhs.uuid;
+  }
+  bool operator()(const peer_t &lhs, const peer_t &rhs) const {
+    return lhs.uuid < rhs.uuid;
+  }
+  bool operator==(const peer_t &rhs) const {
+    return uuid == rhs.uuid;
+  }
+};
+
+std::ostream& operator<<(std::ostream& lhs, const peer_t &peer);
+
+} // namespace mirror
+} // namespace rbd
+
+
+#endif // CEPH_RBD_MIRROR_TYPES_H