add turn cache

Change-Id: I71ed970e4005d73035223ac8b32c24b27e923f1e
diff --git a/include/turn_params.h b/include/turn_params.h
new file mode 100644
index 0000000..1708ad9
--- /dev/null
+++ b/include/turn_params.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2004-2023 Savoir-faire Linux Inc.
+ *
+ *  This program 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.
+ *
+ *  This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "ip_utils.h"
+#include <string>
+
+namespace dhtnet {
+
+struct TurnTransportParams
+{
+    dhtnet::IpAddr server;
+    std::string domain; // Used by cache_turn
+    // Plain Credentials
+    std::string realm;
+    std::string username;
+    std::string password;
+};
+
+}