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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.security.pam.mount;
anyPamMount = any (attrByPath ["pamMount"] false) (attrValues config.security.pam.services);
in
{
options = {
security.pam.mount = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable PAM mount system to mount fileystems on user login.
'';
};
extraVolumes = mkOption {
type = types.listOf types.str;
default = [];
description = ''
List of volume definitions for pam_mount.
For more information, visit <link
xlink:href="http://pam-mount.sourceforge.net/pam_mount.conf.5.html" />.
'';
};
};
};
config = mkIf (cfg.enable || anyPamMount) {
environment.systemPackages = [ pkgs.pam_mount ];
environment.etc = [{
target = "security/pam_mount.conf.xml";
source =
let
extraUserVolumes = filterAttrs (n: u: u.cryptHomeLuks != null) config.users.users;
userVolumeEntry = user: "<volume user=\"${user.name}\" path=\"${user.cryptHomeLuks}\" mountpoint=\"${user.home}\" />\n";
in
pkgs.writeText "pam_mount.conf.xml" ''
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE pam_mount SYSTEM "pam_mount.conf.xml.dtd">
<!-- auto generated from Nixos: modules/config/users-groups.nix -->
<pam_mount>
<debug enable="0" />
<!-- if activated, requires ofl from hxtools to be present -->
<logout wait="0" hup="no" term="no" kill="no" />
<!-- set PATH variable for pam_mount module -->
<path>${pkgs.utillinux}/bin</path>
<!-- create mount point if not present -->
<mkmountpoint enable="1" remove="true" />
<!-- specify the binaries to be called -->
<cryptmount>${pkgs.pam_mount}/bin/mount.crypt %(VOLUME) %(MNTPT)</cryptmount>
<cryptumount>${pkgs.pam_mount}/bin/umount.crypt %(MNTPT)</cryptumount>
<pmvarrun>${pkgs.pam_mount}/bin/pmvarrun -u %(USER) -o %(OPERATION)</pmvarrun>
${concatStrings (map userVolumeEntry (attrValues extraUserVolumes))}
${concatStringsSep "\n" cfg.extraVolumes}
</pam_mount>
'';
}];
};
}
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