Files
nix/modules/system/yubikey/default.nix
2025-10-16 21:48:44 -05:00

55 lines
1.2 KiB
Nix

{
pkgs,
config,
lib,
...
}:
let
service = "yubikey";
cfg = config.system.${service};
sec = config.sops.secrets;
homelab = config.homelab;
in
{
options.system.${service} = {
enable = lib.mkEnableOption "enables ${service}";
mode = lib.mkOption {
type = lib.types.str;
default = "u2f";
description = "weather to run pam in u2f or challenge-response)";
};
lock_on_remove = lib.mkOption {
type = lib.types.bool;
default = false;
description = "enable automatic locking of device upon removal of yubikey";
};
};
config = lib.mkIf cfg.enable {
security.pam.services = lib.mkIf (cfg.mode == "u2f") {
login.u2fAuth = true;
sudo.u2fAuth = true;
};
security.pam.yubico = lib.mkIf (cfg.mode == "challenge-response") {
enable = true;
debug = true;
mode = "challenge-response";
id = [ "<placeholder>" ];
};
services.udev.extraRules = lib.mkIf (cfg.lock_on_remove == true) ''
ACTION=="remove",\
ENV{ID_BUS}=="usb",\
ENV{ID_MODEL_ID}=="0407",\
ENV{ID_VENDOR_ID}=="1050",\
ENV{ID_VENDOR}=="Yubico",\
RUN+="${pkgs.systemd}/bin/loginctl lock-sessions"
'';
};
}