config/modules/services/friendlyport/default.nix

27 lines
978 B
Nix

{
config,
lib,
myData,
...
}: {
options.mj.services.friendlyport = with lib.types; {
ports = lib.mkOption {
type = listOf int;
default = [];
};
};
config = let
ports = builtins.concatStringsSep "," (map builtins.toString config.mj.services.friendlyport.ports);
hosts = lib.attrVals ["mxp10.motiejus.jakst" "fwmine.motiejus.jakst"] myData.hosts;
ips = lib.catAttrs "jakstIP" hosts;
startLines = map (ip: "iptables -A INPUT -p tcp --match multiport --dports ${ports} --source ${ip} -j ACCEPT") ips;
# TODO: when stopping the firewall, systemd uses the old ports. So this is a two-phase process.
# How to stop the old one and start the new one?
stopLines = map (ip: "iptables -D INPUT -p tcp --match multiport --dports ${ports} --source ${ip} -j ACCEPT || :") ips;
in {
networking.firewall.extraCommands = lib.concatLines startLines;
networking.firewall.extraStopCommands = lib.concatLines stopLines;
};
}