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usbmuxd service: user and group options

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Silvan Mosberger 2017-10-18 22:21:29 +02:00
parent f3df7da4f9
commit 2d019b3de3
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1 changed files with 60 additions and 11 deletions
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71
nixos/modules/services/hardware/usbmuxd.nix
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@ -2,24 +2,73 @@
with lib;
let
defaultUserGroup = "usbmux";
apple = "05ac";
cfg = config.services.usbmuxd;
in
{
options.services.usbmuxd.enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable the usbmuxd ("USB multiplexing daemon") service. This daemon is in
charge of multiplexing connections over USB to an iOS device. This is
needed for transferring data from and to iOS devices (see ifuse). Also
this may enable plug-n-play tethering for iPhones.
'';
options.services.usbmuxd = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Enable the usbmuxd ("USB multiplexing daemon") service. This daemon is
in charge of multiplexing connections over USB to an iOS device. This is
needed for transferring data from and to iOS devices (see ifuse). Also
this may enable plug-n-play tethering for iPhones.
'';
};
user = mkOption {
type = types.str;
default = defaultUserGroup;
description = ''
The user usbmuxd should use to run after startup.
'';
};
group = mkOption {
type = types.str;
default = defaultUserGroup;
description = ''
The group usbmuxd should use to run after startup.
'';
};
};
config = mkIf config.services.usbmuxd.enable {
config = mkIf cfg.enable {
users.extraUsers = optional (cfg.user == defaultUserGroup) {
name = cfg.user;
description = "usbmuxd user";
group = cfg.group;
};
users.extraGroups = optional (cfg.group == defaultUserGroup) {
name = cfg.group;
};
# Give usbmuxd permission for Apple devices
services.udev.extraRules = ''
SUBSYSTEM=="usb", ATTR{idVendor}=="${apple}", GROUP="${cfg.group}"
'';
systemd.services.usbmuxd = {
description = "usbmuxd";
wantedBy = [ "multi-user.target" ];
unitConfig.Documentation = "man:usbmuxd(8)";
serviceConfig.ExecStart = "${pkgs.usbmuxd}/bin/usbmuxd -f";
serviceConfig = {
# Trigger the udev rule manually. This doesn't require replugging the
# device when first enabling the option to get it to work
ExecStartPre = "${pkgs.libudev}/bin/udevadm trigger -s usb -a idVendor=${apple}";
ExecStart = "${pkgs.usbmuxd}/bin/usbmuxd -U ${cfg.user} -f";
};
};
};
}