77 lines
1.6 KiB
Nix
77 lines
1.6 KiB
Nix
# Module for the IPv6 Router Advertisement Daemon.
|
|
|
|
{ config, pkgs, ... }:
|
|
|
|
with pkgs.lib;
|
|
|
|
let
|
|
|
|
cfg = config.services.radvd;
|
|
|
|
confFile = pkgs.writeText "radvd.conf" cfg.config;
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.radvd.enable = mkOption {
|
|
default = false;
|
|
description =
|
|
''
|
|
Whether to enable the Router Advertisement Daemon
|
|
(<command>radvd</command>), which provides link-local
|
|
advertisements of IPv6 router addresses and prefixes using
|
|
the Neighbor Discovery Protocol (NDP). This enables
|
|
stateless address autoconfiguration in IPv6 clients on the
|
|
network.
|
|
'';
|
|
};
|
|
|
|
services.radvd.config = mkOption {
|
|
example =
|
|
''
|
|
interface eth0 {
|
|
AdvSendAdvert on;
|
|
prefix 2001:db8:1234:5678::/64 { };
|
|
};
|
|
'';
|
|
description =
|
|
''
|
|
The contents of the radvd configuration file.
|
|
'';
|
|
};
|
|
|
|
};
|
|
|
|
|
|
###### implementation
|
|
|
|
config = mkIf cfg.enable {
|
|
|
|
environment.systemPackages = [ pkgs.radvd ];
|
|
|
|
jobs.radvd =
|
|
{ description = "IPv6 Router Advertisement Daemon";
|
|
|
|
startOn = "started network-interfaces";
|
|
|
|
preStart =
|
|
''
|
|
# !!! Radvd only works if IPv6 forwarding is enabled. But
|
|
# this should probably be done somewhere else (and not
|
|
# necessarily for all interfaces).
|
|
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
|
|
'';
|
|
|
|
exec = "${pkgs.radvd}/sbin/radvd -m syslog -s -C ${confFile}";
|
|
|
|
daemonType = "fork";
|
|
};
|
|
|
|
};
|
|
|
|
} |