+ (* Grant a permission *)
+ | MsgRevoke of Acl.acl
+ (* Revoke a permission *)
+ | MsgListPerms of string
+ (* List all of a user's permissions *)
+ | MsgPerms of (string * string list) list
+ (* A response to MsgListPerms, giving a permission class and all values
+ * for which the user is authorized in that class *)
+ | MsgWhoHas of {class : string, value : string}
+ (* Which users have this permission? *)
+ | MsgWhoHasResponse of string list
+ (* These are the users! *)
+ | MsgMultiConfig of string list
+ (* Multiple Domtool sources in dependency order *)
+ | MsgRmdom of string
+ (* Remove all configuration associated with a domain and revoke rights
+ * to that domain from all users. *)
+ | MsgRegenerate
+ (* Make a clean slate of it and reprocess all configuration from scratch. *)