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nixpkgs/nixos/modules/services/networking/iodined.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

88 lines
2 KiB
Nix

# NixOS module for iodine, ip over dns daemon
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.iodined;
iodinedUser = "iodined";
in
{
### configuration
options = {
services.iodined = {
enable = mkOption {
type = types.uniq types.bool;
default = false;
description = "Enable iodine, ip over dns daemon";
};
client = mkOption {
type = types.uniq types.bool;
default = false;
description = "Start iodine in client mode";
};
ip = mkOption {
type = types.str;
default = "";
description = "Assigned ip address or ip range";
example = "172.16.10.1/24";
};
domain = mkOption {
type = types.str;
default = "";
description = "Domain or subdomain of which nameservers point to us";
example = "tunnel.mydomain.com";
};
extraConfig = mkOption {
type = types.str;
default = "";
description = "Additional command line parameters";
example = "-P mysecurepassword -l 192.168.1.10 -p 23";
};
};
};
### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.iodine ];
boot.kernelModules = [ "tun" ];
systemd.services.iodined = {
description = "iodine, ip over dns daemon";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig.ExecStart = "${pkgs.iodine}/sbin/iodined -f -u ${iodinedUser} ${cfg.extraConfig} ${cfg.ip} ${cfg.domain}";
};
users.extraUsers = singleton {
name = iodinedUser;
uid = config.ids.uids.iodined;
description = "Iodine daemon user";
};
users.extraGroups.iodined.gid = config.ids.gids.iodined;
assertions = [{ assertion = if !cfg.client then cfg.ip != "" else true;
message = "cannot start iodined without ip set";}
{ assertion = cfg.domain != "";
message = "cannot start iodined without domain name set";}];
};
}