20 	struct wpabuf *buf;  in gas_build_req()  local
22 	buf = wpabuf_alloc(100 + size);  in gas_build_req()
23 	if (buf == NULL)  in gas_build_req()
26 	wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);  in gas_build_req()
27 	wpabuf_put_u8(buf, action);  in gas_build_req()
28 	wpabuf_put_u8(buf, dialog_token);  in gas_build_req()
30 	return buf;  in gas_build_req()
51 	struct wpabuf *buf;  in gas_build_resp()  local
53 	buf = wpabuf_alloc(100 + size);  in gas_build_resp()
54 	if (buf == NULL)  in gas_build_resp()
57 	wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);  in gas_build_resp()
58 	wpabuf_put_u8(buf, action);  in gas_build_resp()
59 	wpabuf_put_u8(buf, dialog_token);  in gas_build_resp()
60 	wpabuf_put_le16(buf, status_code);  in gas_build_resp()
62 		wpabuf_put_u8(buf, frag_id | (more ? 0x80 : 0));  in gas_build_resp()
63 	wpabuf_put_le16(buf, comeback_delay);  in gas_build_resp()
65 	return buf;  in gas_build_resp()
99 static void gas_add_adv_proto_anqp(struct wpabuf *buf, u8 query_resp_len_limit,  in gas_add_adv_proto_anqp()  argument
103 	wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);  in gas_add_adv_proto_anqp()
104 	wpabuf_put_u8(buf, 2); /* Length */  in gas_add_adv_proto_anqp()
105 	wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) |  in gas_add_adv_proto_anqp()
108 	wpabuf_put_u8(buf, ACCESS_NETWORK_QUERY_PROTOCOL);  in gas_add_adv_proto_anqp()
114 	struct wpabuf *buf;  in gas_anqp_build_initial_req()  local
116 	buf = gas_build_initial_req(dialog_token, 4 + size);  in gas_anqp_build_initial_req()
117 	if (buf == NULL)  in gas_anqp_build_initial_req()
120 	gas_add_adv_proto_anqp(buf, 0, 0);  in gas_anqp_build_initial_req()
122 	wpabuf_put(buf, 2); /* Query Request Length to be filled */  in gas_anqp_build_initial_req()
124 	return buf;  in gas_anqp_build_initial_req()
131 	struct wpabuf *buf;  in gas_anqp_build_initial_resp()  local
133 	buf = gas_build_initial_resp(dialog_token, status_code, comeback_delay,  in gas_anqp_build_initial_resp()
135 	if (buf == NULL)  in gas_anqp_build_initial_resp()
138 	gas_add_adv_proto_anqp(buf, 0x7f, 0);  in gas_anqp_build_initial_resp()
140 	wpabuf_put(buf, 2); /* Query Response Length to be filled */  in gas_anqp_build_initial_resp()
142 	return buf;  in gas_anqp_build_initial_resp()
151 	struct wpabuf *buf;  in gas_anqp_build_initial_resp_buf()  local
153 	buf = gas_anqp_build_initial_resp(dialog_token, status_code,  in gas_anqp_build_initial_resp_buf()
156 	if (buf == NULL)  in gas_anqp_build_initial_resp_buf()
160 		wpabuf_put_buf(buf, payload);  in gas_anqp_build_initial_resp_buf()
162 	gas_anqp_set_len(buf);  in gas_anqp_build_initial_resp_buf()
164 	return buf;  in gas_anqp_build_initial_resp_buf()
172 	struct wpabuf *buf;  in gas_anqp_build_comeback_resp()  local
174 	buf = gas_build_comeback_resp(dialog_token, status_code,  in gas_anqp_build_comeback_resp()
176 	if (buf == NULL)  in gas_anqp_build_comeback_resp()
179 	gas_add_adv_proto_anqp(buf, 0x7f, 0);  in gas_anqp_build_comeback_resp()
181 	wpabuf_put(buf, 2); /* Query Response Length to be filled */  in gas_anqp_build_comeback_resp()
183 	return buf;  in gas_anqp_build_comeback_resp()
193 	struct wpabuf *buf;  in gas_anqp_build_comeback_resp_buf()  local
195 	buf = gas_anqp_build_comeback_resp(dialog_token, status_code, frag_id,  in gas_anqp_build_comeback_resp_buf()
198 	if (buf == NULL)  in gas_anqp_build_comeback_resp_buf()
202 		wpabuf_put_buf(buf, payload);  in gas_anqp_build_comeback_resp_buf()
204 	gas_anqp_set_len(buf);  in gas_anqp_build_comeback_resp_buf()
206 	return buf;  in gas_anqp_build_comeback_resp_buf()
217 void gas_anqp_set_len(struct wpabuf *buf)  in gas_anqp_set_len()  argument
223 	if (buf == NULL || wpabuf_len(buf) < 2)  in gas_anqp_set_len()
226 	action = *(wpabuf_head_u8(buf) + 1);  in gas_anqp_set_len()
241 	if (wpabuf_len(buf) < offset + 2)  in gas_anqp_set_len()
244 	len = wpabuf_mhead_u8(buf) + offset;  in gas_anqp_set_len()
245 	WPA_PUT_LE16(len, (u8 *) wpabuf_put(buf, 0) - len - 2);  in gas_anqp_set_len()
255 u8 * gas_anqp_add_element(struct wpabuf *buf, u16 info_id)  in gas_anqp_add_element()  argument
257 	wpabuf_put_le16(buf, info_id);  in gas_anqp_add_element()
258 	return wpabuf_put(buf, 2); /* Length to be filled */  in gas_anqp_add_element()
270 void gas_anqp_set_element_len(struct wpabuf *buf, u8 *len_pos)  in gas_anqp_set_element_len()  argument
272 	WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(buf, 0) - len_pos - 2);  in gas_anqp_set_element_len()