/usr/lib/firewalld/services/ Current File: //usr/lib/firewalld/services/upnp-client.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>UPnP Client</short>
  <description>Universal Plug and Play client for auto-configuration of network routers (use only in trusted zones).</description>
  <source-port port="1900" protocol="udp"/>
</service>