(* What socket permissions does this user have? *)
| QFirewall of string
(* What firewall rules does this user have? *)
+ | QAptExists of string
+ (* Does this apt package exist *)
datatype msg =
MsgOk
(* Rerun all callbacks for cases where the set of users has changed *)
| MsgVmailChanged
(* Server tells slave that vmail user information has changed *)
+ | MsgFirewallRegen
+ (* Regenerate firewall on user machines *)
end