Avoid reconnection on ENABLE_NETWORK if already connected

This was already the case for most command sequences, but it was
possible for wpa_s->reassociate to be set to 1 when CTRL-RSP-* commands
were used to set identity, password, or passphrase for EAP
authentication. In such cases, ENABLE_NETWORK issued after the
connection was completed could result in a new connection attempt
(likely reconnection back to the same BSS).

Fix this by checking whether an actual connection is already present
even if wpa_s->reassociate is set when processing the ENABLE_NETWORK
command.

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

wpa_supplicant/wpa_supplicant.c

@@ -2574,7 +2574,10 @@ void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
 	} else
 		wpa_supplicant_enable_one_network(wpa_s, ssid);
 
-	if (wpa_s->reassociate && !wpa_s->disconnected) {
+	if (wpa_s->reassociate && !wpa_s->disconnected &&
+	    (!wpa_s->current_ssid ||
+	     wpa_s->wpa_state == WPA_DISCONNECTED ||
+	     wpa_s->wpa_state == WPA_SCANNING)) {
 		if (wpa_s->sched_scanning) {
 			wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
 				   "new network to scan filters");