101 lines
2 KiB
Nix
101 lines
2 KiB
Nix
# HAL daemon.
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{pkgs, config, ...}:
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with pkgs.lib;
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let
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cfg = config.services.hal;
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inherit (pkgs) hal;
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fdi = pkgs.buildEnv {
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name = "hal-fdi";
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pathsToLink = [ "/share/hal/fdi" ];
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paths = cfg.packages;
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};
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in
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{
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###### interface
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options = {
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services.hal = {
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enable = mkOption {
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default = true;
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description = ''
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Whether to start the HAL daemon.
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'';
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};
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packages = mkOption {
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default = [];
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description = ''
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Packages containing additional HAL configuration data.
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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environment.systemPackages = [hal];
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services.hal.packages = [hal pkgs.hal_info];
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users.extraUsers = singleton
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{ name = "haldaemon";
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uid = config.ids.uids.haldaemon;
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description = "HAL daemon user";
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};
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users.extraGroups = singleton
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{ name = "haldaemon";
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gid = config.ids.gids.haldaemon;
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};
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jobs = singleton
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{ name = "hal";
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description = "HAL daemon";
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# !!! TODO: make sure that HAL starts after acpid,
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# otherwise hald-addon-acpi will grab /proc/acpi/event.
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startOn = if config.powerManagement.enable then "acpid" else "dbus";
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stopOn = "shutdown";
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# !!! HACK? These environment variables manipulated inside
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# 'src'/hald/mmap_cache.c are used for testing the daemon
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environment =
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{ HAL_FDI_SOURCE_PREPROBE = "${fdi}/share/hal/fdi/preprobe";
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HAL_FDI_SOURCE_INFORMATION = "${fdi}/share/hal/fdi/information";
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HAL_FDI_SOURCE_POLICY = "${fdi}/share/hal/fdi/policy";
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};
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preStart =
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''
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mkdir -m 0755 -p /var/cache/hald
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rm -f /var/cache/hald/fdi-cache
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'';
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exec = "${hal}/sbin/hald --daemon=no";
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};
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services.udev.packages = [hal];
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services.dbus.enable = true;
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services.dbus.packages = [hal];
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};
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} |