+extern bool read_rsa_public_key(struct connection_t *);
+extern void send_mtu_probe(struct node_t *);
+extern void handle_device_data(int, short, void *);
+extern void handle_meta_connection_data(int, short, void *);
+
+#ifndef HAVE_MINGW
+#define closesocket(s) close(s)
+#endif