+/**
+ * Handle to a mapping created with upnpc.
+ */
+struct GNUNET_NAT_MiniHandle;
+
+
+/**
+ * Start mapping the given port using (mini)upnpc. This function
+ * should typically not be used directly (it is used within the
+ * general-purpose 'GNUNET_NAT_register' code). However, it can be
+ * used if specifically UPnP-based NAT traversal is to be used or
+ * tested.
+ *
+ * @param port port to map
+ * @param is_tcp GNUNET_YES to map TCP, GNUNET_NO for UDP
+ * @param ac function to call with mapping result
+ * @param ac_cls closure for 'ac'
+ * @return NULL on error
+ */
+struct GNUNET_NAT_MiniHandle *
+GNUNET_NAT_mini_map_start (uint16_t port, int is_tcp,
+ GNUNET_NAT_AddressCallback ac, void *ac_cls);
+
+
+/**
+ * Remove a mapping created with (mini)upnpc. Calling
+ * this function will give 'upnpc' 1s to remove tha mapping,
+ * so while this function is non-blocking, a task will be
+ * left with the scheduler for up to 1s past this call.
+ *
+ * @param mini the handle
+ */
+void
+GNUNET_NAT_mini_map_stop (struct GNUNET_NAT_MiniHandle *mini);
+
+
+/**
+ * Handle to auto-configuration in progress.
+ */
+struct GNUNET_NAT_AutoHandle;
+
+
+/**
+ * Function called with the result from the autoconfiguration.
+ *
+ * @param cls closure
+ * @param diff minimal suggested changes to the original configuration
+ * to make it work (as best as we can)
+ */
+typedef void (*GNUNET_NAT_AutoResultCallback)(void *cls,
+ const struct GNUNET_CONFIGURATION_Handle *diff);
+
+
+/**
+ * Start auto-configuration routine. The resolver service should
+ * be available when this function is called.
+ *
+ * @param cfg initial configuration
+ * @param cb function to call with autoconfiguration result
+ * @param cb_cls closure for cb
+ * @return handle to cancel operation
+ */
+struct GNUNET_NAT_AutoHandle *
+GNUNET_NAT_autoconfig_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ GNUNET_NAT_AutoResultCallback cb,
+ void *cb_cls);
+
+
+/**
+ * Abort autoconfiguration.
+ *
+ * @param ah handle for operation to abort
+ */
+void
+GNUNET_NAT_autoconfig_cancel (struct GNUNET_NAT_AutoHandle *ah);
+
+#endif