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nixpkgs/nixos/modules/services/networking/rdnssd.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

49 lines
1.1 KiB
Nix

# Module for rdnssd, a daemon that configures DNS servers in
# /etc/resolv/conf from IPv6 RDNSS advertisements.
{ config, lib, pkgs, ... }:
with lib;
{
###### interface
options = {
services.rdnssd.enable = mkOption {
default = false;
#default = config.networking.enableIPv6;
description =
''
Whether to enable the RDNSS daemon
(<command>rdnssd</command>), which configures DNS servers in
<filename>/etc/resolv.conf</filename> from RDNSS
advertisements sent by IPv6 routers.
'';
};
};
###### implementation
config = mkIf config.services.rdnssd.enable {
jobs.rdnssd =
{ description = "RDNSS daemon";
# Start before the network interfaces are brought up so that
# the daemon receives RDNSS advertisements from the kernel.
startOn = "starting network-interfaces";
# !!! Should write to /var/run/rdnssd/resolv.conf and run the daemon under another uid.
exec = "${pkgs.ndisc6}/sbin/rdnssd --resolv-file /etc/resolv.conf -u root";
daemonType = "fork";
};
};
}