216 lines
7.0 KiB
Nix
216 lines
7.0 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.xserver.displayManager;
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gnome3 = config.environment.gnome3.packageSet;
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gdm = gnome3.gdm;
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in
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{
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###### interface
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options = {
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services.xserver.displayManager.gdm = {
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enable = mkEnableOption ''
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Whether to enable GDM as the display manager.
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<emphasis>GDM is very experimental and may render system unusable.</emphasis>
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'';
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autoLogin = mkOption {
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default = {};
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type = types.submodule {
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options = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Automatically log in as the sepecified <option>auto.user</option>.
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'';
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};
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user = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = ''
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User to be used for the autologin.
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'';
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};
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delay = mkOption {
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type = types.int;
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default = 0;
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description = ''
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Seconds of inactivity after which the autologin will be performed.
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'';
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};
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};
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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.gdm.enable {
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services.xserver.displayManager.slim.enable = false;
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users.extraUsers.gdm =
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{ name = "gdm";
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uid = config.ids.uids.gdm;
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group = "gdm";
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home = "/run/gdm";
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description = "GDM user";
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};
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users.extraGroups.gdm.gid = config.ids.gids.gdm;
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services.xserver.displayManager.job =
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{
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environment = {
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GDM_X_SERVER = "${cfg.xserverBin} ${cfg.xserverArgs}";
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GDM_SESSIONS_DIR = "${cfg.session.desktops}";
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XDG_CONFIG_DIRS = "${gnome3.gnome_settings_daemon}/etc/xdg";
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# Find the mouse
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XCURSOR_PATH = "~/.icons:${config.system.path}/share/icons";
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};
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execCmd = "exec ${gdm}/bin/gdm";
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};
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# Because sd_login_monitor_new requires /run/systemd/machines
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systemd.services.display-manager.wants = [ "systemd-machined.service" ];
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systemd.services.display-manager.after = [ "systemd-machined.service" ];
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systemd.services.display-manager.path = [ gnome3.gnome_shell gnome3.caribou pkgs.xlibs.xhost pkgs.dbus_tools ];
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services.dbus.packages = [ gdm ];
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programs.dconf.profiles.gdm = "${gdm}/share/dconf/profile/gdm";
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environment.etc."gdm/custom.conf".text = ''
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[daemon]
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${optionalString cfg.gdm.autoLogin.enable ''
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TimedLoginEnable=true
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TimedLogin=${cfg.gdm.autoLogin.user}
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TimedLoginDelay=${toString cfg.gdm.autoLogin.delay}
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''}
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[security]
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[xdmcp]
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[greeter]
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[chooser]
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[debug]
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'';
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# GDM LFS PAM modules, adapted somehow to NixOS
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security.pam.services = {
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gdm-launch-environment.text = ''
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auth required pam_succeed_if.so audit quiet_success user = gdm
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auth optional pam_permit.so
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account required pam_succeed_if.so audit quiet_success user = gdm
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account sufficient pam_unix.so
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password required pam_deny.so
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session required pam_succeed_if.so audit quiet_success user = gdm
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session required pam_env.so envfile=${config.system.build.pamEnvironment}
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session optional ${pkgs.systemd}/lib/security/pam_systemd.so
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session optional pam_keyinit.so force revoke
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session optional pam_permit.so
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'';
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gdm.text = ''
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auth requisite pam_nologin.so
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auth required pam_env.so
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auth required pam_succeed_if.so uid >= 1000 quiet
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auth optional ${gnome3.gnome_keyring}/lib/security/pam_gnome_keyring.so
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auth ${if config.security.pam.enableEcryptfs then "required" else "sufficient"} pam_unix.so nullok likeauth
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${optionalString config.security.pam.enableEcryptfs
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"auth required ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so unwrap"}
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${optionalString (! config.security.pam.enableEcryptfs)
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"auth required pam_deny.so"}
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account sufficient pam_unix.so
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password requisite pam_unix.so nullok sha512
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${optionalString config.security.pam.enableEcryptfs
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"password optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
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session required pam_env.so envfile=${config.system.build.pamEnvironment}
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session required pam_unix.so
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${optionalString config.security.pam.enableEcryptfs
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"session optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
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session required pam_loginuid.so
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session optional ${pkgs.systemd}/lib/security/pam_systemd.so
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session optional ${gnome3.gnome_keyring}/lib/security/pam_gnome_keyring.so auto_start
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'';
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gdm-password.text = ''
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auth requisite pam_nologin.so
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auth required pam_env.so envfile=${config.system.build.pamEnvironment}
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auth required pam_succeed_if.so uid >= 1000 quiet
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auth optional ${gnome3.gnome_keyring}/lib/security/pam_gnome_keyring.so
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auth ${if config.security.pam.enableEcryptfs then "required" else "sufficient"} pam_unix.so nullok likeauth
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${optionalString config.security.pam.enableEcryptfs
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"auth required ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so unwrap"}
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${optionalString (! config.security.pam.enableEcryptfs)
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"auth required pam_deny.so"}
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account sufficient pam_unix.so
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password requisite pam_unix.so nullok sha512
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${optionalString config.security.pam.enableEcryptfs
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"password optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
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session required pam_env.so envfile=${config.system.build.pamEnvironment}
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session required pam_unix.so
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${optionalString config.security.pam.enableEcryptfs
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"session optional ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so"}
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session required pam_loginuid.so
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session optional ${pkgs.systemd}/lib/security/pam_systemd.so
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session optional ${gnome3.gnome_keyring}/lib/security/pam_gnome_keyring.so auto_start
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'';
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gdm-autologin.text = ''
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auth requisite pam_nologin.so
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auth required pam_succeed_if.so uid >= 1000 quiet
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auth required pam_permit.so
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account sufficient pam_unix.so
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password requisite pam_unix.so nullok sha512
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session optional pam_keyinit.so revoke
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session required pam_env.so envfile=${config.system.build.pamEnvironment}
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session required pam_unix.so
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session required pam_loginuid.so
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session optional ${pkgs.systemd}/lib/security/pam_systemd.so
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'';
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};
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};
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}
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