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nixpkgs/nixos/modules/security/pam_usb.nix
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00

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Nix

{ config, lib, pkgs, ... }:
with lib;
let
inherit (pkgs) pam_usb;
cfg = config.security.pam.usb;
anyUsbAuth = any (attrByPath ["usbAuth"] false) (attrValues config.security.pam.services);
in
{
options = {
security.pam.usb = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable USB login for all login systems that support it. For
more information, visit <link
xlink:href="http://pamusb.org/doc/quickstart#setting_up" />.
'';
};
};
};
config = mkIf (cfg.enable || anyUsbAuth) {
# pmount need to have a set-uid bit to make pam_usb works in user
# environment. (like su, sudo)
security.setuidPrograms = [ "pmount" "pumount" ];
environment.systemPackages = [ pkgs.pmount ];
};
}