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nixpkgs/nixos/modules/services/networking/wakeonlan.nix
Dominique Martinet f462cf15f8 wakeonlan service: use powerUpCommands
powerDownCommands is supposed to run before shutdown, but the current
implementation only runs before-sleep, thus not enabling wakeonlan on
devices when powering off even if the hardware supports it.

Taking into consideration the possibility of unexpected shutdown, it is
preferable to move the commands to powerUpCommands instead which is
executed at boot time as well as after resume - that should cover all
use cases for wakeonlan.

Fixes #91352
2020-09-07 14:56:59 +02:00

57 lines
1.3 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
interfaces = config.services.wakeonlan.interfaces;
ethtool = "${pkgs.ethtool}/sbin/ethtool";
passwordParameter = password : if (password == "") then "" else
"sopass ${password}";
methodParameter = {method, password} :
if method == "magicpacket" then "wol g"
else if method == "password" then "wol s so ${passwordParameter password}"
else throw "Wake-On-Lan method not supported";
line = { interface, method ? "magicpacket", password ? "" }: ''
${ethtool} -s ${interface} ${methodParameter {inherit method password;}}
'';
concatStrings = fold (x: y: x + y) "";
lines = concatStrings (map (l: line l) interfaces);
in
{
###### interface
options = {
services.wakeonlan.interfaces = mkOption {
default = [ ];
example = [
{
interface = "eth0";
method = "password";
password = "00:11:22:33:44:55";
}
];
description = ''
Interfaces where to enable Wake-On-LAN, and how. Two methods available:
"magicpacket" and "password". The password has the shape of six bytes
in hexadecimal separated by a colon each. For more information,
check the ethtool manual.
'';
};
};
###### implementation
config.powerManagement.powerUpCommands = lines;
}