76 lines
1.9 KiB
Nix
76 lines
1.9 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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defaultUserGroup = "usbmux";
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apple = "05ac";
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cfg = config.services.usbmuxd;
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in
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{
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options.services.usbmuxd = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Enable the usbmuxd ("USB multiplexing daemon") service. This daemon is
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in charge of multiplexing connections over USB to an iOS device. This is
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needed for transferring data from and to iOS devices (see ifuse). Also
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this may enable plug-n-play tethering for iPhones.
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'';
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};
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user = mkOption {
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type = types.str;
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default = defaultUserGroup;
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description = lib.mdDoc ''
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The user usbmuxd should use to run after startup.
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'';
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};
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group = mkOption {
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type = types.str;
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default = defaultUserGroup;
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description = lib.mdDoc ''
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The group usbmuxd should use to run after startup.
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'';
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};
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};
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config = mkIf cfg.enable {
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users.users = optionalAttrs (cfg.user == defaultUserGroup) {
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${cfg.user} = {
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description = "usbmuxd user";
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group = cfg.group;
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isSystemUser = true;
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};
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};
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users.groups = optionalAttrs (cfg.group == defaultUserGroup) {
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${cfg.group} = { };
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};
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# Give usbmuxd permission for Apple devices
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services.udev.extraRules = ''
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SUBSYSTEM=="usb", ATTR{idVendor}=="${apple}", GROUP="${cfg.group}"
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'';
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systemd.services.usbmuxd = {
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description = "usbmuxd";
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wantedBy = [ "multi-user.target" ];
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unitConfig.Documentation = "man:usbmuxd(8)";
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serviceConfig = {
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# Trigger the udev rule manually. This doesn't require replugging the
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# device when first enabling the option to get it to work
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ExecStartPre = "${pkgs.udev}/bin/udevadm trigger -s usb -a idVendor=${apple}";
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ExecStart = "${pkgs.usbmuxd}/bin/usbmuxd -U ${cfg.user} -f";
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};
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};
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};
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}
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