zimward
109 lines
3.0 KiB
Nix
109 lines
3.0 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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inherit (lib)
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mkEnableOption
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mkIf
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mkMerge
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mkOption
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mkPackageOption
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mkAliasOptionModule
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optionalString
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;
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cfg = config.security.run0;
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in
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{
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options.security.run0 = {
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enable = mkEnableOption "support for run0";
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persistentAuth.enable = mkEnableOption ''
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persistent authentication for sessions.
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Timeout configurable via {option}`security.polkit.settings.Polkitd.ExpirationSeconds`
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'';
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persistentAuth.enableRemote = mkEnableOption "persistent authentication for remote sessions";
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wheelNeedsPassword = mkOption {
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type = lib.types.bool;
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default = true;
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description = ''
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Whether users of the `wheel` group must
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provide a password to run commands as super user via {command}`run0`.
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'';
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};
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sudo-shim.enable = mkEnableOption "make {command}`sudo` an alias to {command}`run0`.";
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sudo-shim.package = mkPackageOption pkgs "run0-sudo-shim" { };
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};
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imports = [
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(mkAliasOptionModule
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[ "security" "run0" "enableSudoAlias" ]
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[ "security" "run0" "sudo-shim" "enable" ]
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)
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];
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config = mkMerge [
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{
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# Late introduction of the enable toggle, this should help during migration.
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# TODO: Remove after 26.11 release
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assertions = [
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{
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assertion = !cfg.wheelNeedsPassword -> cfg.enable;
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message = "`security.run0.enable` is currently disabled, but is required for the `security.run0.wheelNeedsPassword` option to take effect";
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}
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{
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assertion = cfg.enableSudoAlias -> cfg.enable;
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message = "`security.run0.enableSudoAlias` depends on `security.run0.enable`, which is disabled.";
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}
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];
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}
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(mkIf cfg.enable {
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assertions = [
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{
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assertion =
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cfg.sudo-shim.enable -> (!config.security.sudo.enable && !config.security.sudo-rs.enable);
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message = "`security.run0.sudo-shim.enable` cannot be enabled if `security.sudo` or `security.sudo-rs` are enabled.";
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}
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];
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security.polkit = {
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enable = true;
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extraConfig = lib.concatLines [
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(optionalString (!cfg.wheelNeedsPassword) ''
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polkit.addRule(function(action, subject) {
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if (action.id == "org.freedesktop.systemd1.manage-units" && subject.isInGroup("wheel")) {
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return polkit.Result.YES;
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}
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});
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'')
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(optionalString cfg.persistentAuth.enable ''
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polkit.addRule(function(action, subject) {
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if (action.id == "org.freedesktop.systemd1.manage-units" && subject.active ${
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optionalString (!cfg.persistentAuth.enableRemote) "&& subject.local"
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}) {
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return polkit.Result.AUTH_ADMIN_KEEP;
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}
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});
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'')
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];
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};
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environment.systemPackages = lib.optional cfg.sudo-shim.enable cfg.sudo-shim.package;
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})
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];
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meta = {
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maintainers = with lib.maintainers; [
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zimward
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grimmauld
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kuflierl
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];
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};
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}
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