diff --git a/src/route/routing-calculator.hpp b/src/route/routing-calculator.hpp
new file mode 100644
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+++ b/src/route/routing-calculator.hpp
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+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2024,  The University of Memphis,
+ *                           Regents of the University of California
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR 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,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NLSR 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
+ * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NLSR_ROUTING_CALCULATOR_HPP
+#define NLSR_ROUTING_CALCULATOR_HPP
+
+#include "common.hpp"
+#include "lsdb.hpp"
+
+namespace nlsr {
+
+class NameMap;
+class RoutingTable;
+
+void
+calculateLinkStateRoutingPath(NameMap& map, RoutingTable& rt, ConfParameter& confParam,
+                              const Lsdb& lsdb);
+
+void
+calculateHyperbolicRoutingPath(NameMap& map, RoutingTable& rt, Lsdb& lsdb,
+                               AdjacencyList& adjacencies, ndn::Name thisRouterName,
+                               bool isDryRun);
+
+} // namespace nlsr
+
+#endif // NLSR_ROUTING_CALCULATOR_HPP