+ | MsgYes
+ | MsgNo
+ (* Answers to boolean queries *)
+ | MsgQuery of query
+ (* Ask for host-specific information *)
+ | MsgSocket of socket_permission
+ (* Answer to a QSocket query *)
+ | MsgFirewall of string list
+ (* Answer to a QFirewall query *)
+ | MsgRegenerateTc
+ (* MsgRegenerate without actual publishing of configuration *)
+ | MsgGrantDb of {dbtype : string, dbname : string}
+ (* Grant all allowed privileges on a DBMS database to the user *)