WPS: Allow RF Bands value to be overridden

A new hostapd.conf parameter, wps_rf_bands, can now be used to fix the
RF Bands value in cases where hw_mode is not set or when operating a
dual band dual concurrent AP.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

hostapd/config_file.c

@@ -1768,6 +1768,21 @@ struct hostapd_config * hostapd_config_read(const char *fname)
 					   "hw_mode '%s'", line, pos);
 				errors++;
 			}
+		} else if (os_strcmp(buf, "wps_rf_bands") == 0) {
+			if (os_strcmp(pos, "a") == 0)
+				bss->wps_rf_bands = WPS_RF_50GHZ;
+			else if (os_strcmp(pos, "g") == 0 ||
+				 os_strcmp(pos, "b") == 0)
+				bss->wps_rf_bands = WPS_RF_24GHZ;
+			else if (os_strcmp(pos, "ag") == 0 ||
+				 os_strcmp(pos, "ga") == 0)
+				bss->wps_rf_bands =
+					WPS_RF_24GHZ | WPS_RF_50GHZ;
+			else {
+				wpa_printf(MSG_ERROR, "Line %d: unknown "
+					   "wps_rf_band '%s'", line, pos);
+				errors++;
+			}
 		} else if (os_strcmp(buf, "channel") == 0) {
 			conf->channel = atoi(pos);
 		} else if (os_strcmp(buf, "beacon_int") == 0) {

hostapd/hostapd.conf

@@ -1011,6 +1011,12 @@ own_ip_addr=127.0.0.1
 # 12-digit, all-numeric code that identifies the consumer package.
 #upc=123456789012
 
+# WPS RF Bands (a = 5G, b = 2.4G, g = 2.4G, ag = dual band)
+# This value should be set according to RF band(s) supported by the AP if
+# hw_mode is not set. For dual band dual concurrent devices, this needs to be
+# set to ag to allow both RF bands to be advertized.
+#wps_rf_bands=ag
+
 ##### Wi-Fi Direct (P2P) ######################################################
 
 # Enable P2P Device management

src/ap/ap_config.h

@@ -360,6 +360,8 @@ struct hostapd_bss_config {
 	/* IEEE 802.11u - Roaming Consortium list */
 	unsigned int roaming_consortium_count;
 	struct hostapd_roaming_consortium *roaming_consortium;
+
+	u8 wps_rf_bands; /* RF bands for WPS (WPS_RF_*) */
 };
 
 

src/ap/wps_hostapd.c

@@ -800,8 +800,14 @@ int hostapd_init_wps(struct hostapd_data *hapd,
 	}
 
 	wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
-	wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
-		WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
+
+	if (conf->wps_rf_bands) {
+		wps->dev.rf_bands = conf->wps_rf_bands;
+	} else {
+		wps->dev.rf_bands =
+			hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
+			WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
+	}
 
 	if (conf->wpa & WPA_PROTO_RSN) {
 		if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)