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3fe96bcca1
Fixes #2379. The new name was a misnomer because the values really are X11 video drivers (e.g. ‘cirrus’ or ‘nvidia’), not OpenGL implementations. That it's also used to set an OpenGL implementation for kmscon is just confusing overloading.
80 lines
2.5 KiB
Nix
80 lines
2.5 KiB
Nix
# This module implements a terminal service based on ‘x11vnc’. It
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# listens on port 5900 for VNC connections. It then presents a login
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# screen to the user. If the user successfully authenticates, x11vnc
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# checks to see if a X server is already running for that user. If
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# not, a X server (Xvfb) is started for that user. The Xvfb instances
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# persist across VNC sessions.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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# Wrap Xvfb to set some flags/variables.
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xvfbWrapper = pkgs.writeScriptBin "Xvfb"
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''
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#! ${pkgs.stdenv.shell}
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export XKB_BINDIR=${pkgs.xorg.xkbcomp}/bin
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export XORG_DRI_DRIVER_PATH=${pkgs.mesa}/lib/dri
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exec ${pkgs.xorg.xorgserver}/bin/Xvfb "$@" -xkbdir ${pkgs.xkeyboard_config}/etc/X11/xkb
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'';
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in
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{
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config = {
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services.xserver.enable = true;
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services.xserver.videoDrivers = [];
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# Enable KDM. Any display manager will do as long as it supports XDMCP.
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services.xserver.displayManager.kdm.enable = true;
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services.xserver.displayManager.kdm.enableXDMCP = true;
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services.xserver.displayManager.kdm.extraConfig =
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''
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[General]
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# We're headless, so don't bother starting an X server.
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StaticServers=
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[Xdmcp]
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Xaccess=${pkgs.writeText "Xaccess" "localhost"}
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'';
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systemd.sockets.terminal-server =
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{ description = "Terminal Server Socket";
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wantedBy = [ "sockets.target" ];
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before = [ "multi-user.target" ];
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socketConfig.Accept = true;
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socketConfig.ListenStream = 5900;
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};
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systemd.services."terminal-server@" =
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{ description = "Terminal Server";
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path =
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[ xvfbWrapper pkgs.gawk pkgs.which pkgs.openssl pkgs.xorg.xauth
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pkgs.nettools pkgs.shadow pkgs.procps pkgs.utillinux pkgs.bash
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];
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environment.FD_GEOM = "1024x786x24";
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environment.FD_XDMCP_IF = "127.0.0.1";
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#environment.FIND_DISPLAY_OUTPUT = "/tmp/foo"; # to debug the "find display" script
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serviceConfig =
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{ StandardInput = "socket";
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StandardOutput = "socket";
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StandardError = "journal";
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ExecStart = "@${pkgs.x11vnc}/bin/x11vnc x11vnc -inetd -display WAIT:1024x786:cmd=FINDCREATEDISPLAY-Xvfb.xdmcp -unixpw -ssl SAVE";
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# Don't kill the X server when the user quits the VNC
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# connection. FIXME: the X server should run in a
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# separate systemd session.
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KillMode = "process";
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};
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};
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};
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}
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