P2P: Add GO Intent of connecting device in GO Negotiation Request event

Add GO Intent information of connecting device in GO Negotiation Request
event which will help applications to decide its own GO intent value in
advance and can avoid failure cases when both devices use GO Intent 15
depending on application requirement.

Signed-off-by: Mayank Haarit <mayank.h@samsung.com>

src/p2p/p2p.h

@@ -705,6 +705,7 @@ struct p2p_config {
 	 * @ctx: Callback context from cb_ctx
 	 * @src: Source address of the message triggering this notification
 	 * @dev_passwd_id: WPS Device Password ID
+	 * @go_intent: Peer's GO Intent
 	 *
 	 * This callback is used to notify that a P2P Device is requesting
 	 * group owner negotiation with us, but we do not have all the
@@ -713,7 +714,8 @@ struct p2p_config {
 	 * PIN or PBC button press. This information can be provided with a
 	 * call to p2p_connect().
 	 */
-	void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id);
+	void (*go_neg_req_rx)(void *ctx, const u8 *src, u16 dev_passwd_id,
+			      u8 go_intent);
 
 	/**
 	 * go_neg_completed - Notification of GO Negotiation results

src/p2p/p2p_go_neg.c

@@ -668,7 +668,9 @@ void p2p_process_go_neg_req(struct p2p_data *p2p, const u8 *sa,
 			MAC2STR(sa));
 		status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
 		p2p->cfg->go_neg_req_rx(p2p->cfg->cb_ctx, sa,
-					msg.dev_password_id);
+					msg.dev_password_id,
+					msg.go_intent ? (*msg.go_intent >> 1) :
+					0);
 	} else if (p2p->go_neg_peer && p2p->go_neg_peer != dev) {
 		p2p_dbg(p2p, "Already in Group Formation with another peer");
 		status = P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;

wpa_supplicant/dbus/dbus_new.c

@@ -1063,7 +1063,8 @@ error:
 
 
 void wpas_dbus_signal_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
-				     const u8 *src, u16 dev_passwd_id)
+				     const u8 *src, u16 dev_passwd_id,
+				     u8 go_intent)
 {
 	DBusMessage *msg;
 	DBusMessageIter iter;
@@ -1097,7 +1098,9 @@ void wpas_dbus_signal_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
 	if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 					    &path) ||
 	    !dbus_message_iter_append_basic(&iter, DBUS_TYPE_UINT16,
-					    &dev_passwd_id))
+					    &dev_passwd_id) ||
+	    !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BYTE,
+					    &go_intent))
 		wpa_printf(MSG_ERROR, "dbus: Failed to construct signal");
 	else
 		dbus_connection_send(iface->con, msg, NULL);
@@ -3123,6 +3126,7 @@ static const struct wpa_dbus_signal_desc wpas_dbus_interface_signals[] = {
 	  {
 		  { "path", "o", ARG_OUT },
 		  { "dev_passwd_id", "i", ARG_OUT },
+		  { "device_go_intent", "y", ARG_OUT },
 		  END_ARGS
 	  }
 	},

wpa_supplicant/dbus/dbus_new.h

@@ -185,7 +185,8 @@ void wpas_dbus_signal_p2p_provision_discovery(struct wpa_supplicant *wpa_s,
 					      u16 config_methods,
 					      unsigned int generated_pin);
 void wpas_dbus_signal_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
-				     const u8 *src, u16 dev_passwd_id);
+				     const u8 *src, u16 dev_passwd_id,
+				     u8 go_intent);
 void wpas_dbus_signal_p2p_group_started(struct wpa_supplicant *wpa_s,
 					const struct wpa_ssid *ssid,
 					int client, int network_id);
@@ -378,10 +379,10 @@ wpas_dbus_signal_p2p_provision_discovery(struct wpa_supplicant *wpa_s,
 {
 }
 
-static inline void wpas_dbus_signal_p2p_go_neg_req(
-				struct wpa_supplicant *wpa_s,
-				const u8 *src,
-				u16 dev_passwd_id)
+static inline void wpas_dbus_signal_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
+						   const u8 *src,
+						   u16 dev_passwd_id,
+						   u8 go_intent)
 {
 }
 

wpa_supplicant/notify.c

@@ -561,9 +561,9 @@ void wpas_notify_p2p_group_removed(struct wpa_supplicant *wpa_s,
 
 
 void wpas_notify_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
-				const u8 *src, u16 dev_passwd_id)
+				const u8 *src, u16 dev_passwd_id, u8 go_intent)
 {
-	wpas_dbus_signal_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
+	wpas_dbus_signal_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
 }
 
 

wpa_supplicant/notify.h

@@ -93,7 +93,7 @@ void wpas_notify_p2p_group_removed(struct wpa_supplicant *wpa_s,
 				   const struct wpa_ssid *ssid,
 				   const char *role);
 void wpas_notify_p2p_go_neg_req(struct wpa_supplicant *wpa_s,
-				const u8 *src, u16 dev_passwd_id);
+				const u8 *src, u16 dev_passwd_id, u8 go_intent);
 void wpas_notify_p2p_go_neg_completed(struct wpa_supplicant *wpa_s,
 				      struct p2p_go_neg_results *res);
 void wpas_notify_p2p_invitation_result(struct wpa_supplicant *wpa_s,

wpa_supplicant/p2p_supplicant.c

@@ -2146,13 +2146,15 @@ static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
 }
 
 
-static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
+static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
+			       u8 go_intent)
 {
 	struct wpa_supplicant *wpa_s = ctx;
 	wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
-		       " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
+		       " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
+		       dev_passwd_id, go_intent);
 
-	wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
+	wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
 }