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# Udisks daemon.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.udisks2;
settingsFormat = pkgs.formats.ini {
listToValue = concatMapStringsSep "," (generators.mkValueStringDefault {});
};
configFiles = mapAttrs (name: value: (settingsFormat.generate name value)) (mapAttrs' (name: value: nameValuePair name value ) config.services.udisks2.settings);
in
{
###### interface
options = {
services.udisks2 = {
enable = mkEnableOption "udisks2, a DBus service that allows applications to query and manipulate storage devices";
mountOnMedia = mkOption {
type = types.bool;
default = false;
description = ''
When enabled, instructs udisks2 to mount removable drives under `/media/` directory, instead of the
default, ACL-controlled `/run/media/$USER/`. Since `/media/` is not mounted as tmpfs by default, it
requires cleanup to get rid of stale mountpoints; enabling this option will take care of this at boot.
'';
};
settings = mkOption rec {
type = types.attrsOf settingsFormat.type;
apply = recursiveUpdate default;
default = {
"udisks2.conf" = {
udisks2 = {
modules = [ "*" ];
modules_load_preference = "ondemand";
};
defaults = {
encryption = "luks2";
};
};
};
example = literalExpression ''
{
"WDC-WD10EZEX-60M2NA0-WD-WCC3F3SJ0698.conf" = {
ATA = {
StandbyTimeout = 50;
};
};
};
'';
description = ''
Options passed to udisksd.
See [here](http://manpages.ubuntu.com/manpages/latest/en/man5/udisks2.conf.5.html) and
drive configuration in [here](http://manpages.ubuntu.com/manpages/latest/en/man8/udisks.8.html) for supported options.
'';
};
};
};
###### implementation
config = mkIf config.services.udisks2.enable {
environment.systemPackages = [ pkgs.udisks2 ];
environment.etc = (mapAttrs' (name: value: nameValuePair "udisks2/${name}" { source = value; } ) configFiles) // (
let
libblockdev = pkgs.udisks2.libblockdev;
majorVer = versions.major libblockdev.version;
in {
# We need to make sure /etc/libblockdev/@major_ver@/conf.d is populated to avoid
# warnings
"libblockdev/${majorVer}/conf.d/00-default.cfg".source = "${libblockdev}/etc/libblockdev/${majorVer}/conf.d/00-default.cfg";
"libblockdev/${majorVer}/conf.d/10-lvm-dbus.cfg".source = "${libblockdev}/etc/libblockdev/${majorVer}/conf.d/10-lvm-dbus.cfg";
});
security.polkit.enable = true;
services.dbus.packages = [ pkgs.udisks2 ];
systemd.tmpfiles.rules = [ "d /var/lib/udisks2 0755 root root -" ]
++ optional cfg.mountOnMedia "D! /media 0755 root root -";
services.udev.packages = [ pkgs.udisks2 ];
services.udev.extraRules = optionalString cfg.mountOnMedia ''
ENV{ID_FS_USAGE}=="filesystem", ENV{UDISKS_FILESYSTEM_SHARED}="1"
'';
systemd.packages = [ pkgs.udisks2 ];
};
}
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