Rename "broadcast SSID" to "wildcard SSID"

"Wildcard SSID" is the term used in IEEE Std 802.11-2007, so it is a
better name for the zero-length SSID used in Probe Request.

src/drivers/driver.h

@@ -156,7 +156,7 @@ struct wpa_driver_scan_params {
 		/**
 		 * ssid - specific SSID to scan for (ProbeReq)
 		 * %NULL or zero-length SSID is used to indicate active scan
-		 * with broadcast SSID.
+		 * with wildcard SSID.
 		 */
 		const u8 *ssid;
 		/**
@@ -601,8 +601,8 @@ struct wpa_driver_ops {
 	 * scan - Request the driver to initiate scan (old version)
 	 * @priv: private driver interface data
 	 * @ssid: specific SSID to scan for (ProbeReq) or %NULL to scan for
-	 *	all SSIDs (either active scan with broadcast SSID or passive
-	 *	scan
+	 *	all SSIDs (either active scan with wildcard SSID or passive
+	 *	scan)
 	 * @ssid_len: length of the SSID
 	 *
 	 * Returns: 0 on success, -1 on failure

src/drivers/driver_wext.c

@@ -1076,8 +1076,8 @@ void wpa_driver_wext_scan_timeout(void *eloop_ctx, void *timeout_ctx)
  * wpa_driver_wext_scan - Request the driver to initiate scan
  * @priv: Pointer to private wext data from wpa_driver_wext_init()
  * @ssid: Specific SSID to scan for (ProbeReq) or %NULL to scan for
- *	all SSIDs (either active scan with broadcast SSID or passive
- *	scan
+ *	all SSIDs (either active scan with wildcard SSID or passive
+ *	scan)
  * @ssid_len: Length of the SSID
  * Returns: 0 on success, -1 on failure
  */

wpa_supplicant/scan.c

@@ -91,7 +91,7 @@ static void wpa_supplicant_assoc_try(struct wpa_supplicant *wpa_s,
 	if (ssid == NULL) {
 		wpa_printf(MSG_DEBUG, "wpa_supplicant_scan: Reached "
 			   "end of scan list - go back to beginning");
-		wpa_s->prev_scan_ssid = BROADCAST_SSID_SCAN;
+		wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
 		wpa_supplicant_req_scan(wpa_s, 0, 0);
 		return;
 	}
@@ -100,7 +100,7 @@ static void wpa_supplicant_assoc_try(struct wpa_supplicant *wpa_s,
 		wpa_s->prev_scan_ssid = ssid;
 	} else {
 		/* Start from the beginning of the SSID list. */
-		wpa_s->prev_scan_ssid = BROADCAST_SSID_SCAN;
+		wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
 	}
 	wpa_supplicant_associate(wpa_s, NULL, ssid);
 }
@@ -174,7 +174,7 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 
 	/* Find the starting point from which to continue scanning */
 	ssid = wpa_s->conf->ssid;
-	if (wpa_s->prev_scan_ssid != BROADCAST_SSID_SCAN) {
+	if (wpa_s->prev_scan_ssid != WILDCARD_SSID_SCAN) {
 		while (ssid) {
 			if (ssid == wpa_s->prev_scan_ssid) {
 				ssid = ssid->next;
@@ -189,8 +189,8 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 		return;
 	} else if (wpa_s->conf->ap_scan == 2) {
 		/*
-		 * User-initiated scan request in ap_scan == 2; use broadcast
-		 * scan.
+		 * User-initiated scan request in ap_scan == 2; scan with
+		 * wildcard SSID.
 		 */
 		ssid = NULL;
 	} else {
@@ -221,15 +221,15 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 	if (ssid) {
 		wpa_s->prev_scan_ssid = ssid;
 		if (max_ssids > 1) {
-			wpa_printf(MSG_DEBUG, "Include broadcast SSID in the "
+			wpa_printf(MSG_DEBUG, "Include wildcard SSID in the "
 				   "scan request");
-			params.num_ssids++; /* Broadcast scan */
+			params.num_ssids++;
 		}
 		wpa_printf(MSG_DEBUG, "Starting AP scan for specific SSID(s)");
 	} else {
-		wpa_s->prev_scan_ssid = BROADCAST_SSID_SCAN;
+		wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
 		params.num_ssids++;
-		wpa_printf(MSG_DEBUG, "Starting AP scan for broadcast SSID");
+		wpa_printf(MSG_DEBUG, "Starting AP scan for wildcard SSID");
 	}
 
 #ifdef CONFIG_WPS

wpa_supplicant/wpa_supplicant.c

@@ -1688,7 +1688,7 @@ int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
 	wpa_printf(MSG_DEBUG, "RSN: flushing PMKID list in the driver");
 	wpa_drv_flush_pmkid(wpa_s);
 
-	wpa_s->prev_scan_ssid = BROADCAST_SSID_SCAN;
+	wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
 	wpa_supplicant_req_scan(wpa_s, interface_count, 100000);
 	interface_count++;
 

wpa_supplicant/wpa_supplicant_i.h

@@ -309,11 +309,11 @@ struct wpa_supplicant {
 
 	struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
 					  * NULL = not yet initialized (start
-					  * with broadcast SSID)
-					  * BROADCAST_SSID_SCAN = broadcast
+					  * with wildcard SSID)
+					  * WILDCARD_SSID_SCAN = wildcard
 					  * SSID was used in the previous scan
 					  */
-#define BROADCAST_SSID_SCAN ((struct wpa_ssid *) 1)
+#define WILDCARD_SSID_SCAN ((struct wpa_ssid *) 1)
 
 	struct wpa_scan_results *scan_res;