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|
{
config,
lib,
...
}: let
cfg = config.vhack.dns;
zones =
builtins.mapAttrs (name: value: {
data =
dns.types.zone.renderToString name value;
})
cfg.zones;
dns = import ./dns {inherit lib;};
ports = let
parsePorts = listeners: let
splitAddress = addr: lib.splitString "@" addr;
extractPort = addr: let
split = splitAddress addr;
in
lib.toInt (
if (builtins.length split) == 2
then builtins.elemAt split 1
else "53"
);
in
builtins.map extractPort listeners;
in
lib.unique (parsePorts cfg.interfaces);
in {
options.vhack.dns = {
enable = lib.mkEnableOption "custom dns server";
openFirewall = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Open the following ports:
TCP (${lib.concatStringsSep ", " (map toString ports)})
UDP (${lib.concatStringsSep ", " (map toString ports)})
'';
};
interfaces = lib.mkOption {
type = lib.types.listOf lib.types.str;
description = ''
A list of the interfaces to bind to. To select the port add `@` to the end of the
interface. The default port is 53.
'';
example = [
"192.168.1.3"
"2001:db8:1::3"
];
};
zones = lib.mkOption {
type = lib.types.attrsOf dns.types.zone.zone;
description = "DNS zones";
};
};
config = lib.mkIf cfg.enable {
services.nsd = {
enable = true;
verbosity = 4;
inherit (cfg) interfaces;
inherit zones;
};
networking.firewall.allowedUDPPorts = lib.mkIf cfg.openFirewall ports;
networking.firewall.allowedTCPPorts = lib.mkIf cfg.openFirewall ports;
};
}
|
