From 39d808829c185db7f3393a86b12cb04a8ba24050 Mon Sep 17 00:00:00 2001 From: lassulus Date: Mon, 24 Jan 2022 14:34:18 +0100 Subject: l xjails: switch from sudo to machinectl --- lass/3modules/xjail.nix | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-) (limited to 'lass/3modules/xjail.nix') diff --git a/lass/3modules/xjail.nix b/lass/3modules/xjail.nix index f94e7ebbf..08a28b8e3 100644 --- a/lass/3modules/xjail.nix +++ b/lass/3modules/xjail.nix @@ -41,10 +41,6 @@ with import ; type = types.path; default = pkgs.writeScript "echo_lol" "echo lol"; }; - vglrun = mkOption { - type = types.bool; - default = false; - }; wm = mkOption { #TODO find type type = types.str; @@ -122,21 +118,14 @@ with import ; ${pkgs.coreutils}/bin/kill $XEPHYR_PID ''; # TODO fix xephyr which doesn't honor resizes anymore - sudo_ = pkgs.writeDash "${cfg.name}-sudo" (if cfg.vglrun then '' - /var/run/wrappers/bin/sudo -u ${cfg.name} -i ${vglrun_} "$@" - '' else '' + sudo_ = pkgs.writeDash "${cfg.name}-sudo" '' #/var/run/wrappers/bin/sudo -u ${cfg.name} -i env DISPLAY=:${cfg.display} ${cfg.script} "$@" - /var/run/wrappers/bin/sudo -u ${cfg.name} -i ${cfg.script} "$@" - - ''); - vglrun_ = pkgs.writeDash "${cfg.name}-vglrun" '' - DISPLAY=:${cfg.display} ${pkgs.virtualgl}/bin/vglrun ${cfg.extraVglrunArgs} ${cfg.script} "$@" + ${pkgs.systemd}/bin/machinectl shell -E DISPLAY=:0 --uid=${cfg.name} .host ${cfg.script} "$@" ''; in nameValuePair name { existing = newOrExisting; xephyr = xephyr_; sudo = sudo_; - vglrun = vglrun_; } ) config.lass.xjail; in { @@ -161,10 +150,19 @@ with import ; } ) config.lass.xjail; - security.sudo.extraConfig = (concatStringsSep "\n" (mapAttrsToList (_: cfg: - # TODO allow just the right script with sudo - "${cfg.from} ALL=(${cfg.name}) NOPASSWD: ALL" - ) config.lass.xjail)); + security.polkit.extraConfig = (concatStringsSep "\n" (mapAttrsToList (_: cfg: '' + polkit.addRule(function(action, subject) { + if ( + subject.user == "${cfg.from}" && + action.id == "org.freedesktop.machine1.host-shell" && + action.lookup("user") == "${cfg.user}" && + action.lookup("program") == "${cfg.script}" && + true + ) { + return polkit.Result.YES; + } + }); + '') config.lass.xjail)); lass.xjail-bins = mapAttrs' (name: cfg: nameValuePair name (pkgs.writeScriptBin cfg.name '' -- cgit v1.2.3