+static void gas_query_start_cb(struct wpa_radio_work *work, int deinit)
+{
+ struct gas_query_pending *query = work->ctx;
+ struct gas_query *gas = query->gas;
+ struct wpa_supplicant *wpa_s = gas->wpa_s;
+
+ if (deinit) {
+ if (work->started) {
+ gas->work = NULL;
+ gas_query_done(gas, query, GAS_QUERY_DELETED_AT_DEINIT);
+ return;
+ }
+
+ gas_query_free(query, 1);
+ return;
+ }
+
+ if (wpas_update_random_addr_disassoc(wpa_s) < 0) {
+ wpa_msg(wpa_s, MSG_INFO,
+ "Failed to assign random MAC address for GAS");
+ gas_query_free(query, 1);
+ radio_work_done(work);
+ return;
+ }
+
+ gas->work = work;
+ gas_query_tx_initial_req(gas, query);
+}
+
+
+static void gas_query_tx_initial_req(struct gas_query *gas,
+ struct gas_query_pending *query)
+{
+ if (gas_query_tx(gas, query, query->req,
+ GAS_QUERY_WAIT_TIME_INITIAL) < 0) {
+ wpa_printf(MSG_DEBUG, "GAS: Failed to send Action frame to "
+ MACSTR, MAC2STR(query->addr));
+ gas_query_done(gas, query, GAS_QUERY_INTERNAL_ERROR);
+ return;
+ }
+ gas->current = query;
+
+ wpa_printf(MSG_DEBUG, "GAS: Starting query timeout for dialog token %u",
+ query->dialog_token);
+ eloop_register_timeout(GAS_QUERY_TIMEOUT_PERIOD, 0,
+ gas_query_timeout, gas, query);
+}
+
+
+static int gas_query_new_dialog_token(struct gas_query *gas, const u8 *dst)
+{
+ static int next_start = 0;
+ int dialog_token;
+
+ for (dialog_token = 0; dialog_token < 256; dialog_token++) {
+ if (gas_query_dialog_token_available(
+ gas, dst, (next_start + dialog_token) % 256))
+ break;
+ }
+ if (dialog_token == 256)
+ return -1; /* Too many pending queries */
+ dialog_token = (next_start + dialog_token) % 256;
+ next_start = (dialog_token + 1) % 256;
+ return dialog_token;
+}
+
+