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-rw-r--r--lass/3modules/xjail.nix121
1 files changed, 99 insertions, 22 deletions
diff --git a/lass/3modules/xjail.nix b/lass/3modules/xjail.nix
index af851760b..325ebcc99 100644
--- a/lass/3modules/xjail.nix
+++ b/lass/3modules/xjail.nix
@@ -1,33 +1,88 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
with import <stockholm/lib>;
{
options.lass.xjail = mkOption {
type = types.attrsOf (types.submodule ({ config, ...}: {
options = {
+ name = mkOption {
+ type = types.string;
+ default = config._module.args.name;
+ };
user = mkOption {
type = types.string;
- default = "nobody";
+ default = config.name;
};
groups = mkOption {
type = types.listOf types.str;
default = [];
};
- name = mkOption {
+ from = mkOption {
type = types.string;
- default = config._module.args.name;
+ default = "lass";
};
display = mkOption {
type = types.string;
default = toString (genid_signed config._module.args.name);
};
+ dpi = mkOption {
+ type = types.int;
+ default = 90;
+ };
+ extraXephyrArgs = mkOption {
+ type = types.str;
+ default = "";
+ };
+ extraVglrunArgs = mkOption {
+ type = types.str;
+ default = "";
+ };
script = mkOption {
type = types.path;
default = pkgs.writeScript "echo_lol" "echo lol";
};
- from = mkOption {
+ wm = mkOption {
+ #TODO find type
type = types.string;
- default = "lass";
+ default = "${pkgs.writeHaskell "xephyrify-xmonad" {
+ executables.xmonad = {
+ extra-depends = [
+ "containers"
+ "unix"
+ "xmonad"
+ ];
+ text = /* haskell */ ''
+ module Main where
+ import XMonad
+ import Data.Monoid
+ import System.Posix.Process (executeFile)
+ import qualified Data.Map as Map
+
+ main :: IO ()
+ main = do
+ xmonad def
+ { workspaces = [ "1" ]
+ , layoutHook = myLayoutHook
+ , keys = myKeys
+ , normalBorderColor = "#000000"
+ , focusedBorderColor = "#000000"
+ , handleEventHook = myEventHook
+ }
+
+ myEventHook :: Event -> X All
+
+ myEventHook (ConfigureEvent { ev_event_type = 22 }) = do
+ spawn "${pkgs.xorg.xrandr}/bin/xrandr >/dev/null 2>&1"
+ return (All True)
+
+ myEventHook _ = do
+ return (All True)
+
+ myLayoutHook = Full
+ myKeys _ = Map.fromList []
+ '';
+ };
+ }}/bin/xmonad";
};
};
}));
@@ -39,7 +94,42 @@ with import <stockholm/lib>;
};
# implementation
- config = {
+ config = let
+ scripts = mapAttrs' (name: cfg:
+ let
+ newOrExisting = pkgs.writeDash "${cfg.name}-existing" ''
+ DISPLAY=:${cfg.display} ${pkgs.xorg.xrandr}/bin/xrandr
+ if test $? -eq 0; then
+ echo using existing xephyr
+ ${sudo_} "$@"
+ else
+ echo starting new xephyr
+ ${xephyr_} "$@"
+ fi
+ '';
+ xephyr_ = pkgs.writeDash "${cfg.name}-xephyr" ''
+ ${pkgs.xorg.xorgserver}/bin/Xephyr -br -ac -reset -terminate -resizeable -nolisten local -dpi ${toString cfg.dpi} ${cfg.extraXephyrArgs} :${cfg.display} &
+ XEPHYR_PID=$!
+ DISPLAY=:${cfg.display} ${cfg.wm} &
+ WM_PID=$!
+ ${sudo_} "$@"
+ ${pkgs.coreutils}/bin/kill $WM_PID
+ ${pkgs.coreutils}/bin/kill $XEPHYR_PID
+ '';
+ sudo_ = pkgs.writeDash "${cfg.name}-sudo" ''
+ /var/run/wrappers/bin/sudo -u ${cfg.name} -i ${vglrun_} "$@"
+ '';
+ vglrun_ = pkgs.writeDash "${cfg.name}-vglrun" ''
+ DISPLAY=:${cfg.display} ${pkgs.virtualgl}/bin/vglrun ${cfg.extraVglrunArgs} ${cfg.script} "$@"
+ '';
+ in nameValuePair name {
+ existing = newOrExisting;
+ xephyr = xephyr_;
+ sudo = sudo_;
+ vglrun = vglrun_;
+ }
+ ) config.lass.xjail;
+ in {
users.users = mapAttrs' (_: cfg:
nameValuePair cfg.name {
@@ -66,21 +156,8 @@ with import <stockholm/lib>;
) config.lass.xjail));
lass.xjail-bins = mapAttrs' (name: cfg:
- let
- sudo-wrapper = pkgs.writeScript name ''
- /var/run/wrappers/bin/sudo -u ${cfg.name} -i ${cfg.script} "$@"
- '';
- in nameValuePair name (pkgs.writeScriptBin cfg.name ''
- export NDISPLAY=${cfg.display}
- DISPLAY=:$NDISPLAY ${pkgs.xorg.xrandr}/bin/xrandr
- if test $? -eq 0; then
- echo xephyr already running
- export DISPLAY=:$NDISPLAY
- ${sudo-wrapper} "$@"
- else
- echo xephyr not running
- DROP_TO_USER=${cfg.name} ${pkgs.xephyrify}/bin/xephyrify ${sudo-wrapper} "$@"
- fi
+ nameValuePair name (pkgs.writeScriptBin cfg.name ''
+ ${scripts.${name}.existing} "$@"
'')
) config.lass.xjail;
};