idiosyn/nixos/module/nitrokey-random.nix

24 lines
772 B
Nix
Raw Permalink Normal View History

2024-08-18 13:47:18 +02:00
{ ... }: { config, lib, pkgs, ... }:
lib.mkIf config.hardware.nitrokey.enable {
services.udev.packages = [
(pkgs.writeTextDir "etc/udev/rules.d/98-nitrokey-random-seed.rules" ''
SUBSYSTEM=="hidraw", ATTRS{idVendor}=="20a0", ATTRS{idProduct}=="42b1|42b2", TAG+="systemd", ENV{SYSTEMD_WANTS}+="nitrokey-random-seed@%k.service"
'')
];
systemd.services."nitrokey-random-seed@" = {
description = "Feed kernel from Nitrokey TRNG";
serviceConfig = {
Type = "oneshot";
ExecStart = "${pkgs.pynitrokey}/bin/nitropy fido2 rng feedkernel";
DynamicUser = true;
SupplementaryGroups = [ "plugdev" ];
AmbientCapabilities = [ "CAP_SYS_ADMIN" ];
DeviceAllow = [ "/dev/%i rw" ];
DevicePolicy = "closed";
};
};
}