--- /dev/null
+/*
+ * Generic advertisement service (GAS) (IEEE 802.11u)
+ * Copyright (c) 2009, Atheros Communications
+ * Copyright (c) 2011-2012, Qualcomm Atheros
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef GAS_H
+#define GAS_H
+
+struct wpabuf * gas_build_initial_req(u8 dialog_token, size_t size);
+struct wpabuf * gas_build_comeback_req(u8 dialog_token);
+struct wpabuf * gas_build_initial_resp(u8 dialog_token, u16 status_code,
+ u16 comeback_delay, size_t size);
+struct wpabuf * gas_anqp_build_initial_req(u8 dialog_token, size_t size);
+struct wpabuf * gas_anqp_build_initial_resp(u8 dialog_token, u16 status_code,
+ u16 comeback_delay, size_t size);
+struct wpabuf * gas_anqp_build_initial_resp_buf(u8 dialog_token,
+ u16 status_code,
+ u16 comeback_delay,
+ struct wpabuf *payload);
+struct wpabuf * gas_anqp_build_comeback_resp(u8 dialog_token, u16 status_code,
+ u8 frag_id, u8 more,
+ u16 comeback_delay, size_t size);
+struct wpabuf * gas_anqp_build_comeback_resp_buf(u8 dialog_token,
+ u16 status_code,
+ u8 frag_id, u8 more,
+ u16 comeback_delay,
+ struct wpabuf *payload);
+void gas_anqp_set_len(struct wpabuf *buf);
+
+u8 * gas_anqp_add_element(struct wpabuf *buf, u16 info_id);
+void gas_anqp_set_element_len(struct wpabuf *buf, u8 *len_pos);
+
+#endif /* GAS_H */