+int _connection_libnet_start_tcpdump(void);
+int _connection_libnet_stop_tcpdump(void);
+int _connection_libnet_get_tcpdump_state(gboolean *tcpdump_state);
+
+void _connection_libnet_set_type_changed_cb(libnet_type_changed_cb callback) NO_SANITIZE;
+void _connection_libnet_set_ip_changed_cb(libnet_ip_changed_cb callback);
+void _connection_libnet_set_proxy_changed_cb(libnet_proxy_changed_cb callback);
+