+int opkg_new (void);
+void opkg_free (void);
+int opkg_re_read_config_files (void);
+void opkg_get_option (char *option, void **value);
+void opkg_set_option (char *option, void *value);
+
+int opkg_install_package (const char *package_name, opkg_progress_callback_t callback, void *user_data);
+int opkg_remove_package (const char *package_name, opkg_progress_callback_t callback, void *user_data);
+int opkg_upgrade_package (const char *package_name, opkg_progress_callback_t callback, void *user_data);
+int opkg_upgrade_all (opkg_progress_callback_t callback, void *user_data);
+int opkg_update_package_lists (opkg_progress_callback_t callback, void *user_data);