xpc: send a "connecting" event when establishing a connection starts

src/frontends/osx/charon-xpc/xpc_channels.c

@@ -254,6 +254,32 @@ METHOD(listener_t, ike_rekey, bool,
 	return TRUE;
 }
 
+METHOD(listener_t, ike_state_change, bool,
+	private_xpc_channels_t *this, ike_sa_t *ike_sa, ike_sa_state_t state)
+{
+	if (state == IKE_CONNECTING)
+	{
+		entry_t *entry;
+		uintptr_t sa;
+
+		sa = ike_sa->get_unique_id(ike_sa);
+		this->lock->read_lock(this->lock);
+		entry = this->channels->get(this->channels, (void*)sa);
+		if (entry)
+		{
+			xpc_object_t msg;
+
+			msg = xpc_dictionary_create(NULL, NULL, 0);
+			xpc_dictionary_set_string(msg, "type", "event");
+			xpc_dictionary_set_string(msg, "event", "connecting");
+			xpc_connection_send_message(entry->conn, msg);
+			xpc_release(msg);
+		}
+		this->lock->unlock(this->lock);
+	}
+	return TRUE;
+}
+
 METHOD(listener_t, child_updown, bool,
 	private_xpc_channels_t *this, ike_sa_t *ike_sa,
 	child_sa_t *child_sa, bool up)
@@ -438,6 +464,7 @@ xpc_channels_t *xpc_channels_create()
 			.listener = {
 				.ike_updown = _ike_updown,
 				.ike_rekey = _ike_rekey,
+				.ike_state_change = _ike_state_change,
 				.child_updown = _child_updown,
 			},
 			.add = _add,