Add new definitions for RIO operation, many new SNS commands, and structures (i.e., finally use a real CT Header for responses to nameserver commands).
Add new definitions for RIO operation, many new SNS commands, and structures
(i.e., finally use a real CT Header for responses to nameserver commands).

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars