P2P: Send AP mode WPS-FAIL event to parent interface

The AP operation with wpa_supplicant requires an additional callback
to get the needed event information from hostapd side so that
wpa_msg() can be called for wpa_s->parent if needed.

src/ap/hostapd.h

@@ -27,6 +27,8 @@ struct sta_info;
 struct hostap_sta_driver_data;
 struct ieee80211_ht_capabilities;
 struct full_dynamic_vlan;
+enum wps_event;
+union wps_event_data;
 
 struct hostapd_probereq_cb {
 	int (*cb)(void *ctx, const u8 *sa, const u8 *ie, size_t ie_len);
@@ -185,6 +187,10 @@ struct hostapd_data {
 				   const u8 *uuid_e);
 	void *wps_reg_success_cb_ctx;
 
+	void (*wps_event_cb)(void *ctx, enum wps_event event,
+			     union wps_event_data *data);
+	void *wps_event_cb_ctx;
+
 #ifdef CONFIG_P2P
 	struct p2p_data *p2p;
 	struct p2p_group *p2p_group;

src/ap/wps_hostapd.c

@@ -572,6 +572,8 @@ static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 	case WPS_EV_ER_AP_SETTINGS:
 		break;
 	}
+	if (hapd->wps_event_cb)
+		hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
 }
 
 

wpa_supplicant/ap.c

@@ -17,6 +17,7 @@
 
 #include "utils/common.h"
 #include "common/ieee802_11_defs.h"
+#include "common/wpa_ctrl.h"
 #include "ap/hostapd.h"
 #include "ap/ap_config.h"
 #ifdef NEED_AP_MLME
@@ -200,6 +201,26 @@ static void ap_public_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 }
 
 
+static void ap_wps_event_cb(void *ctx, enum wps_event event,
+			    union wps_event_data *data)
+{
+	struct wpa_supplicant *wpa_s = ctx;
+
+	if (event == WPS_EV_FAIL && wpa_s->parent && wpa_s->parent != wpa_s) {
+		struct wps_event_fail *fail = &data->fail;
+
+		/*
+		 * src/ap/wps_hostapd.c has already sent this on the main
+		 * interface, so only send on the parent interface here if
+		 * needed.
+		 */
+		wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
+			"msg=%d config_error=%d",
+			fail->msg, fail->config_error);
+	}
+}
+
+
 static int ap_vendor_action_rx(void *ctx, const u8 *buf, size_t len, int freq)
 {
 #ifdef CONFIG_P2P
@@ -366,6 +387,8 @@ int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 					     ap_probe_req_rx, wpa_s);
 		hapd_iface->bss[i]->wps_reg_success_cb = ap_wps_reg_success_cb;
 		hapd_iface->bss[i]->wps_reg_success_cb_ctx = wpa_s;
+		hapd_iface->bss[i]->wps_event_cb = ap_wps_event_cb;
+		hapd_iface->bss[i]->wps_event_cb_ctx = wpa_s;
 #ifdef CONFIG_P2P
 		hapd_iface->bss[i]->p2p = wpa_s->global->p2p;
 		hapd_iface->bss[i]->p2p_group = wpas_p2p_group_init(