wpa_supplicant AP: Allows passphrase to be fetched

"wpa_cli status wps" can now be used to fetch the WPA2-Personal
passphrase from AP mode operation with wpa_supplicant to make it
easier to meet WPS requirements for legacy STA support.

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

wpa_supplicant/ctrl_iface.c

@@ -874,9 +874,10 @@ static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
 					    char *buf, size_t buflen)
 {
 	char *pos, *end, tmp[30];
-	int res, verbose, ret;
+	int res, verbose, wps, ret;
 
 	verbose = os_strcmp(params, "-VERBOSE") == 0;
+	wps = os_strcmp(params, "-WPS") == 0;
 	pos = buf;
 	end = buf + buflen;
 	if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
@@ -905,6 +906,17 @@ static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
 				return pos - buf;
 			pos += ret;
 
+			if (wps && ssid->passphrase &&
+			    wpa_key_mgmt_wpa_psk(ssid->key_mgmt) &&
+			    (ssid->mode == WPAS_MODE_AP ||
+			     ssid->mode == WPAS_MODE_P2P_GO)) {
+				ret = os_snprintf(pos, end - pos,
+						  "passphrase=%s\n",
+						  ssid->passphrase);
+				if (ret < 0 || ret >= end - pos)
+					return pos - buf;
+				pos += ret;
+			}
 			if (ssid->id_str) {
 				ret = os_snprintf(pos, end - pos,
 						  "id_str=%s\n",

wpa_supplicant/wpa_cli.c

@@ -454,8 +454,11 @@ static int wpa_ctrl_command(struct wpa_ctrl *ctrl, char *cmd)
 
 static int wpa_cli_cmd_status(struct wpa_ctrl *ctrl, int argc, char *argv[])
 {
-	int verbose = argc > 0 && os_strcmp(argv[0], "verbose") == 0;
-	return wpa_ctrl_command(ctrl, verbose ? "STATUS-VERBOSE" : "STATUS");
+	if (argc > 0 && os_strcmp(argv[0], "verbose") == 0)
+		return wpa_ctrl_command(ctrl, "STATUS-VERBOSE");
+	if (argc > 0 && os_strcmp(argv[0], "wps") == 0)
+		return wpa_ctrl_command(ctrl, "STATUS-WPS");
+	return wpa_ctrl_command(ctrl, "STATUS");
 }