diff options
Diffstat (limited to 'nixos/modules/services/networking/radvd.nix')
-rw-r--r-- | nixos/modules/services/networking/radvd.nix | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/nixos/modules/services/networking/radvd.nix b/nixos/modules/services/networking/radvd.nix new file mode 100644 index 000000000000..8d586ce6e46b --- /dev/null +++ b/nixos/modules/services/networking/radvd.nix @@ -0,0 +1,77 @@ +# 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"; + }; + + }; + +} |