forked from mirrors/nixpkgs
2e751c0772
the conversion procedure is simple: - find all things that look like options, ie calls to either `mkOption` or `lib.mkOption` that take an attrset. remember the attrset as the option - for all options, find a `description` attribute who's value is not a call to `mdDoc` or `lib.mdDoc` - textually convert the entire value of the attribute to MD with a few simple regexes (the set from mdize-module.sh) - if the change produced a change in the manual output, discard - if the change kept the manual unchanged, add some text to the description to make sure we've actually found an option. if the manual changes this time, keep the converted description this procedure converts 80% of nixos options to markdown. around 2000 options remain to be inspected, but most of those fail the "does not change the manual output check": currently the MD conversion process does not faithfully convert docbook tags like <code> and <package>, so any option using such tags will not be converted at all.
140 lines
4 KiB
Nix
140 lines
4 KiB
Nix
# D-Bus configuration and system bus daemon.
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{ config, lib, options, pkgs, ... }:
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with lib;
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let
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cfg = config.services.dbus;
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homeDir = "/run/dbus";
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configDir = pkgs.makeDBusConf {
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inherit (cfg) apparmor;
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suidHelper = "${config.security.wrapperDir}/dbus-daemon-launch-helper";
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serviceDirectories = 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.dbus = {
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enable = mkOption {
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type = types.bool;
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default = false;
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internal = true;
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description = ''
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Whether to start the D-Bus message bus daemon, which is
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required by many other system services and applications.
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'';
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};
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packages = mkOption {
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type = types.listOf types.path;
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default = [ ];
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description = ''
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Packages whose D-Bus configuration files should be included in
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the configuration of the D-Bus system-wide or session-wide
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message bus. Specifically, files in the following directories
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will be included into their respective DBus configuration paths:
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<filename><replaceable>pkg</replaceable>/etc/dbus-1/system.d</filename>
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<filename><replaceable>pkg</replaceable>/share/dbus-1/system.d</filename>
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<filename><replaceable>pkg</replaceable>/share/dbus-1/system-services</filename>
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<filename><replaceable>pkg</replaceable>/etc/dbus-1/session.d</filename>
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<filename><replaceable>pkg</replaceable>/share/dbus-1/session.d</filename>
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<filename><replaceable>pkg</replaceable>/share/dbus-1/services</filename>
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'';
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};
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apparmor = mkOption {
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type = types.enum [ "enabled" "disabled" "required" ];
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description = lib.mdDoc ''
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AppArmor mode for dbus.
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`enabled` enables mediation when it's
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supported in the kernel, `disabled`
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always disables AppArmor even with kernel support, and
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`required` fails when AppArmor was not found
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in the kernel.
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'';
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default = "disabled";
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};
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socketActivated = mkOption {
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type = types.nullOr types.bool;
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default = null;
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visible = false;
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description = ''
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Removed option, do not use.
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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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warnings = optional (cfg.socketActivated != null) (
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let
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files = showFiles options.services.dbus.socketActivated.files;
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in
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"The option 'services.dbus.socketActivated' in ${files} no longer has"
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+ " any effect and can be safely removed: the user D-Bus session is"
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+ " now always socket activated."
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);
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environment.systemPackages = [ pkgs.dbus.daemon pkgs.dbus ];
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environment.etc."dbus-1".source = configDir;
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users.users.messagebus = {
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uid = config.ids.uids.messagebus;
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description = "D-Bus system message bus daemon user";
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home = homeDir;
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group = "messagebus";
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};
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users.groups.messagebus.gid = config.ids.gids.messagebus;
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systemd.packages = [ pkgs.dbus.daemon ];
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security.wrappers.dbus-daemon-launch-helper = {
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source = "${pkgs.dbus.daemon}/libexec/dbus-daemon-launch-helper";
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owner = "root";
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group = "messagebus";
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setuid = true;
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setgid = false;
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permissions = "u+rx,g+rx,o-rx";
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};
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services.dbus.packages = [
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pkgs.dbus.out
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config.system.path
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];
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systemd.services.dbus = {
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# Don't restart dbus-daemon. Bad things tend to happen if we do.
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reloadIfChanged = true;
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restartTriggers = [ configDir ];
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environment = { LD_LIBRARY_PATH = config.system.nssModules.path; };
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};
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systemd.user = {
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services.dbus = {
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# Don't restart dbus-daemon. Bad things tend to happen if we do.
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reloadIfChanged = true;
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restartTriggers = [ configDir ];
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};
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sockets.dbus.wantedBy = [ "sockets.target" ];
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};
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environment.pathsToLink = [ "/etc/dbus-1" "/share/dbus-1" ];
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};
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}
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