Add parsed information from WPS IE(s) into scan results

This makes it easier for external programs to show WPS information
since they do not need to parse the WPS IE themselves anymore.

src/wps/wps.c

@@ -356,3 +356,104 @@ void wps_free_pending_msgs(struct upnp_pending_message *msgs)
 		os_free(prev);
 	}
 }
+
+
+int wps_attr_text(struct wpabuf *data, char *buf, char *end)
+{
+	struct wps_parse_attr attr;
+	char *pos = buf;
+	int ret;
+
+	if (wps_parse_msg(data, &attr) < 0)
+		return -1;
+
+	if (attr.wps_state) {
+		if (*attr.wps_state == WPS_STATE_NOT_CONFIGURED)
+			ret = os_snprintf(pos, end - pos,
+					  "wps_state=unconfigured\n");
+		else if (*attr.wps_state == WPS_STATE_CONFIGURED)
+			ret = os_snprintf(pos, end - pos,
+					  "wps_state=configured\n");
+		else
+			ret = 0;
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.ap_setup_locked && *attr.ap_setup_locked) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_ap_setup_locked=1\n");
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.selected_registrar && *attr.selected_registrar) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_selected_registrar=1\n");
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.dev_password_id) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_device_password_id=%u\n",
+				  WPA_GET_BE16(attr.dev_password_id));
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.sel_reg_config_methods) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_selected_registrar_config_methods="
+				  "0x%04x\n",
+				  WPA_GET_BE16(attr.sel_reg_config_methods));
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.primary_dev_type) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_primary_device_type=%u-%08x-%u\n",
+				  WPA_GET_BE16(attr.primary_dev_type),
+				  WPA_GET_BE32(&attr.primary_dev_type[2]),
+				  WPA_GET_BE16(&attr.primary_dev_type[6]));
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.dev_name) {
+		char *str = os_malloc(attr.dev_name_len + 1);
+		size_t i;
+		if (str == NULL)
+			return pos - buf;
+		for (i = 0; i < attr.dev_name_len; i++) {
+			if (attr.dev_name[i] < 32)
+				str[i] = '_';
+			else
+				str[i] = attr.dev_name[i];
+		}
+		str[i] = '\0';
+		ret = os_snprintf(pos, end - pos, "wps_device_name=%s\n", str);
+		os_free(str);
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	if (attr.config_methods) {
+		ret = os_snprintf(pos, end - pos,
+				  "wps_config_methods=0x%04x\n",
+				  WPA_GET_BE16(attr.config_methods));
+		if (ret < 0 || ret >= end - pos)
+			return pos - buf;
+		pos += ret;
+	}
+
+	return pos - buf;
+}

src/wps/wps.h

@@ -589,5 +589,6 @@ struct oob_nfc_device_data * wps_get_oob_nfc_device(char *device_name);
 int wps_get_oob_method(char *method);
 int wps_process_oob(struct wps_context *wps, struct oob_device_data *oob_dev,
 		    int registrar);
+int wps_attr_text(struct wpabuf *data, char *buf, char *end);
 
 #endif /* WPS_H */

wpa_supplicant/ctrl_iface.c

@@ -1547,6 +1547,14 @@ static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
 		return pos - buf;
 	pos += ret;
 
+#ifdef CONFIG_WPS
+	ie = (const u8 *) (bss + 1);
+	ret = wpas_wps_scan_result_text(ie, bss->ie_len, pos, end);
+	if (ret < 0 || ret >= end - pos)
+		return pos - buf;
+	pos += ret;
+#endif /* CONFIG_WPS */
+
 	return pos - buf;
 }
 

wpa_supplicant/wps_supplicant.c

@@ -16,6 +16,7 @@
 
 #include "common.h"
 #include "ieee802_11_defs.h"
+#include "ieee802_11_common.h"
 #include "wpa_common.h"
 #include "config.h"
 #include "eap_peer/eap.h"
@@ -983,3 +984,19 @@ int wpas_wps_searching(struct wpa_supplicant *wpa_s)
 
 	return 0;
 }
+
+
+int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
+			      char *end)
+{
+	struct wpabuf *wps_ie;
+	int ret;
+
+	wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
+	if (wps_ie == NULL)
+		return 0;
+
+	ret = wps_attr_text(wps_ie, buf, end);
+	wpabuf_free(wps_ie);
+	return ret;
+}

wpa_supplicant/wps_supplicant.h

@@ -47,6 +47,8 @@ int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
 			      struct wpa_ssid *ssid);
 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s);
 int wpas_wps_searching(struct wpa_supplicant *wpa_s);
+int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *pos,
+			      char *end);
 
 #else /* CONFIG_WPS */