Constant HTTP_HEADER_CP_FN 

pub const HTTP_HEADER_CP_FN: &str = "CPFN.UPNP.ORG";

Specifies the friendly name of the control point. The friendly name is vendor specific. When Device Protection is implemented the cpfn.upnp.org shall be the same as the of Device Protection unless the Device Protection is defined, in which case it shall use the .