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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
;;; Copyright © 2017 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2017 Nikita <nikita@n0.is>
;;; Copyright © 2018, 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017, 2019 Christopher Baines <mail@cbaines.net>
;;; Copyright © 2019 Tim Gesthuizen <tim.gesthuizen@yahoo.de>
;;; Copyright © 2019 David Wilson <david@daviwil.com>
;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services desktop)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module (gnu services base)
#:use-module (gnu services dbus)
#:use-module (gnu services avahi)
#:use-module (gnu services xorg)
#:use-module (gnu services networking)
#:use-module (gnu services sound)
#:use-module ((gnu system file-systems)
#:select (%elogind-file-systems file-system))
#:use-module (gnu system)
#:use-module (gnu system shadow)
#:use-module (gnu system pam)
#:use-module (gnu packages glib)
#:use-module (gnu packages admin)
#:use-module (gnu packages cups)
#:use-module (gnu packages freedesktop)
#:use-module (gnu packages gnome)
#:use-module (gnu packages xfce)
#:use-module (gnu packages avahi)
#:use-module (gnu packages xdisorg)
#:use-module (gnu packages scanner)
#:use-module (gnu packages suckless)
#:use-module (gnu packages linux)
#:use-module (gnu packages libusb)
#:use-module (gnu packages mate)
#:use-module (gnu packages enlightenment)
#:use-module (guix deprecation)
#:use-module (guix records)
#:use-module (guix packages)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix gexp)
#:use-module (srfi srfi-1)
#:use-module (ice-9 match)
#:export (<upower-configuration>
upower-configuration
upower-configuration?
upower-configuration-upower
upower-configuration-watts-up-pro?
upower-configuration-poll-batteries?
upower-configuration-ignore-lid?
upower-configuration-use-percentage-for-policy?
upower-configuration-percentage-low
upower-configuration-percentage-critical
upower-configuration-percentage-action
upower-configuration-time-low
upower-configuration-time-critical
upower-configuration-time-action
upower-configuration-critical-power-action
upower-service
upower-service-type
udisks-configuration
udisks-configuration?
udisks-service
udisks-service-type
colord-service-type
colord-service
geoclue-application
geoclue-configuration
geoclue-configuration?
%standard-geoclue-applications
geoclue-service
geoclue-service-type
bluetooth-service-type
bluetooth-configuration
bluetooth-configuration?
bluetooth-service
elogind-configuration
elogind-configuration?
elogind-service
elogind-service-type
%fontconfig-file-system
fontconfig-file-system-service
accountsservice-service-type
accountsservice-service
cups-pk-helper-service-type
sane-service-type
gnome-desktop-configuration
gnome-desktop-configuration?
gnome-desktop-service
gnome-desktop-service-type
mate-desktop-configuration
mate-desktop-configuration?
mate-desktop-service
mate-desktop-service-type
xfce-desktop-configuration
xfce-desktop-configuration?
xfce-desktop-service
xfce-desktop-service-type
x11-socket-directory-service
enlightenment-desktop-configuration
enlightenment-desktop-configuration?
enlightenment-desktop-service-type
inputattach-configuration
inputattach-configuration?
inputattach-service-type
polkit-wheel-service
gnome-keyring-configuration
gnome-keyring-configuration?
gnome-keyring-service-type
%desktop-services))
;;; Commentary:
;;;
;;; This module contains service definitions for a "desktop" environment.
;;;
;;; Code:
;;;
;;; Helpers.
;;;
(define (bool value)
(if value "true\n" "false\n"))
(define (package-direct-input-selector input)
(lambda (package)
(match (assoc-ref (package-direct-inputs package) input)
((package . _) package))))
;;;
;;; Upower D-Bus service.
;;;
(define-record-type* <upower-configuration>
upower-configuration make-upower-configuration
upower-configuration?
(upower upower-configuration-upower
(default upower))
(watts-up-pro? upower-configuration-watts-up-pro?
(default #f))
(poll-batteries? upower-configuration-poll-batteries?
(default #t))
(ignore-lid? upower-configuration-ignore-lid?
(default #f))
(use-percentage-for-policy? upower-configuration-use-percentage-for-policy?
(default #f))
(percentage-low upower-configuration-percentage-low
(default 10))
(percentage-critical upower-configuration-percentage-critical
(default 3))
(percentage-action upower-configuration-percentage-action
(default 2))
(time-low upower-configuration-time-low
(default 1200))
(time-critical upower-configuration-time-critical
(default 300))
(time-action upower-configuration-time-action
(default 120))
(critical-power-action upower-configuration-critical-power-action
(default 'hybrid-sleep)))
(define* upower-configuration-file
;; Return an upower-daemon configuration file.
(match-lambda
(($ <upower-configuration> upower
watts-up-pro? poll-batteries? ignore-lid? use-percentage-for-policy?
percentage-low percentage-critical percentage-action time-low
time-critical time-action critical-power-action)
(plain-file "UPower.conf"
(string-append
"[UPower]\n"
"EnableWattsUpPro=" (bool watts-up-pro?)
"NoPollBatteries=" (bool (not poll-batteries?))
"IgnoreLid=" (bool ignore-lid?)
"UsePercentageForPolicy=" (bool use-percentage-for-policy?)
"PercentageLow=" (number->string percentage-low) "\n"
"PercentageCritical=" (number->string percentage-critical) "\n"
"PercentageAction=" (number->string percentage-action) "\n"
"TimeLow=" (number->string time-low) "\n"
"TimeCritical=" (number->string time-critical) "\n"
"TimeAction=" (number->string time-action) "\n"
"CriticalPowerAction=" (match critical-power-action
('hybrid-sleep "HybridSleep")
('hibernate "Hibernate")
('power-off "PowerOff"))
"\n")))))
(define %upower-activation
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/lib/upower")))
(define (upower-dbus-service config)
(list (wrapped-dbus-service (upower-configuration-upower config)
"libexec/upowerd"
`(("UPOWER_CONF_FILE_NAME"
,(upower-configuration-file config))))))
(define (upower-shepherd-service config)
"Return a shepherd service for UPower with CONFIG."
(let ((upower (upower-configuration-upower config))
(config (upower-configuration-file config)))
(list (shepherd-service
(documentation "Run the UPower power and battery monitor.")
(provision '(upower-daemon))
(requirement '(dbus-system udev))
(start #~(make-forkexec-constructor
(list (string-append #$upower "/libexec/upowerd"))
#:environment-variables
(list (string-append "UPOWER_CONF_FILE_NAME="
#$config))))
(stop #~(make-kill-destructor))))))
(define upower-service-type
(let ((upower-package (compose list upower-configuration-upower)))
(service-type (name 'upower)
(description
"Run @command{upowerd}}, a system-wide monitor for power
consumption and battery levels, with the given configuration settings. It
implements the @code{org.freedesktop.UPower} D-Bus interface, and is notably
used by GNOME.")
(extensions
(list (service-extension dbus-root-service-type
upower-dbus-service)
(service-extension shepherd-root-service-type
upower-shepherd-service)
(service-extension activation-service-type
(const %upower-activation))
(service-extension udev-service-type
upower-package)
;; Make the 'upower' command visible.
(service-extension profile-service-type
upower-package)))
(default-value (upower-configuration)))))
(define-deprecated (upower-service #:key (upower upower)
(watts-up-pro? #f)
(poll-batteries? #t)
(ignore-lid? #f)
(use-percentage-for-policy? #f)
(percentage-low 10)
(percentage-critical 3)
(percentage-action 2)
(time-low 1200)
(time-critical 300)
(time-action 120)
(critical-power-action 'hybrid-sleep))
upower-service-type
"Return a service that runs @uref{http://upower.freedesktop.org/,
@command{upowerd}}, a system-wide monitor for power consumption and battery
levels, with the given configuration settings. It implements the
@code{org.freedesktop.UPower} D-Bus interface, and is notably used by GNOME."
(let ((config (upower-configuration
(watts-up-pro? watts-up-pro?)
(poll-batteries? poll-batteries?)
(ignore-lid? ignore-lid?)
(use-percentage-for-policy? use-percentage-for-policy?)
(percentage-low percentage-low)
(percentage-critical percentage-critical)
(percentage-action percentage-action)
(time-low time-low)
(time-critical time-critical)
(time-action time-action)
(critical-power-action critical-power-action))))
(service upower-service-type config)))
;;;
;;; GeoClue D-Bus service.
;;;
;; TODO: Export.
(define-record-type* <geoclue-configuration>
geoclue-configuration make-geoclue-configuration
geoclue-configuration?
(geoclue geoclue-configuration-geoclue
(default geoclue))
(whitelist geoclue-configuration-whitelist)
(wifi-geolocation-url geoclue-configuration-wifi-geolocation-url)
(submit-data? geoclue-configuration-submit-data?)
(wifi-submission-url geoclue-configuration-wifi-submission-url)
(submission-nick geoclue-configuration-submission-nick)
(applications geoclue-configuration-applications))
(define* (geoclue-application name #:key (allowed? #t) system? (users '()))
"Configure default GeoClue access permissions for an application. NAME is
the Desktop ID of the application, without the .desktop part. If ALLOWED? is
true, the application will have access to location information by default.
The boolean SYSTEM? value indicates that an application is a system component
or not. Finally USERS is a list of UIDs of all users for which this
application is allowed location info access. An empty users list means all
users are allowed."
(string-append
"[" name "]\n"
"allowed=" (bool allowed?)
"system=" (bool system?)
"users=" (string-join users ";") "\n"))
(define %standard-geoclue-applications
(list (geoclue-application "gnome-datetime-panel" #:system? #t)
(geoclue-application "epiphany" #:system? #f)
(geoclue-application "firefox" #:system? #f)))
(define* (geoclue-configuration-file config)
"Return a geoclue configuration file."
(plain-file "geoclue.conf"
(string-append
"[agent]\n"
"whitelist="
(string-join (geoclue-configuration-whitelist config)
";") "\n"
"[wifi]\n"
"url=" (geoclue-configuration-wifi-geolocation-url config) "\n"
"submit-data=" (bool (geoclue-configuration-submit-data? config))
"submission-url="
(geoclue-configuration-wifi-submission-url config) "\n"
"submission-nick="
(geoclue-configuration-submission-nick config)
"\n"
(string-join (geoclue-configuration-applications config)
"\n"))))
(define (geoclue-dbus-service config)
(list (wrapped-dbus-service (geoclue-configuration-geoclue config)
"libexec/geoclue"
`(("GEOCLUE_CONFIG_FILE"
,(geoclue-configuration-file config))))))
(define %geoclue-accounts
(list (user-group (name "geoclue") (system? #t))
(user-account
(name "geoclue")
(group "geoclue")
(system? #t)
(comment "GeoClue daemon user")
(home-directory "/var/empty")
(shell "/run/current-system/profile/sbin/nologin"))))
(define geoclue-service-type
(service-type (name 'geoclue)
(extensions
(list (service-extension dbus-root-service-type
geoclue-dbus-service)
(service-extension account-service-type
(const %geoclue-accounts))))))
(define* (geoclue-service #:key (geoclue geoclue)
(whitelist '())
(wifi-geolocation-url
;; Mozilla geolocation service:
"https://location.services.mozilla.com/v1/geolocate?key=geoclue")
(submit-data? #f)
(wifi-submission-url
"https://location.services.mozilla.com/v1/submit?key=geoclue")
(submission-nick "geoclue")
(applications %standard-geoclue-applications))
"Return a service that runs the @command{geoclue} location service. This
service provides a D-Bus interface to allow applications to request access to
a user's physical location, and optionally to add information to online
location databases. By default, only the GNOME date-time panel and the Icecat
and Epiphany web browsers are able to ask for the user's location, and in the
case of Icecat and Epiphany, both will ask the user for permission first. See
@uref{https://wiki.freedesktop.org/www/Software/GeoClue/, the geoclue web
site} for more information."
(service geoclue-service-type
(geoclue-configuration
(geoclue geoclue)
(whitelist whitelist)
(wifi-geolocation-url wifi-geolocation-url)
(submit-data? submit-data?)
(wifi-submission-url wifi-submission-url)
(submission-nick submission-nick)
(applications applications))))
;;;
;;; Bluetooth.
;;;
(define-record-type* <bluetooth-configuration>
bluetooth-configuration make-bluetooth-configuration
bluetooth-configuration?
(bluez bluetooth-configuration-bluez (default bluez))
(auto-enable? bluetooth-configuration-auto-enable? (default #f)))
(define (bluetooth-configuration-file config)
"Return a configuration file for the systemd bluetooth service, as a string."
(string-append
"[Policy]\n"
"AutoEnable=" (bool (bluetooth-configuration-auto-enable?
config))))
(define (bluetooth-directory config)
(computed-file "etc-bluetooth"
#~(begin
(mkdir #$output)
(chdir #$output)
(call-with-output-file "main.conf"
(lambda (port)
(display #$(bluetooth-configuration-file config)
port))))))
(define (bluetooth-shepherd-service config)
"Return a shepherd service for @command{bluetoothd}."
(shepherd-service
(provision '(bluetooth))
(requirement '(dbus-system udev))
(documentation "Run the bluetoothd daemon.")
(start #~(make-forkexec-constructor
(list #$(file-append (bluetooth-configuration-bluez config)
"/libexec/bluetooth/bluetoothd"))))
(stop #~(make-kill-destructor))))
(define bluetooth-service-type
(service-type
(name 'bluetooth)
(extensions
(list (service-extension dbus-root-service-type
(compose list bluetooth-configuration-bluez))
(service-extension udev-service-type
(compose list bluetooth-configuration-bluez))
(service-extension etc-service-type
(lambda (config)
`(("bluetooth"
,(bluetooth-directory config)))))
(service-extension shepherd-root-service-type
(compose list bluetooth-shepherd-service))))
(description "Run the @command{bluetoothd} daemon, which manages all the
Bluetooth devices and provides a number of D-Bus interfaces.")))
(define* (bluetooth-service #:key (bluez bluez) (auto-enable? #f))
"Return a service that runs the @command{bluetoothd} daemon, which manages
all the Bluetooth devices and provides a number of D-Bus interfaces. When
AUTO-ENABLE? is true, the bluetooth controller is powered automatically at
boot.
Users need to be in the @code{lp} group to access the D-Bus service.
"
(service bluetooth-service-type
(bluetooth-configuration
(bluez bluez)
(auto-enable? auto-enable?))))
;;;
;;; Colord D-Bus service.
;;;
(define %colord-activation
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/lib/colord")
(let ((user (getpwnam "colord")))
(chown "/var/lib/colord"
(passwd:uid user) (passwd:gid user)))))
(define %colord-accounts
(list (user-group (name "colord") (system? #t))
(user-account
(name "colord")
(group "colord")
(system? #t)
(comment "colord daemon user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define colord-service-type
(service-type (name 'colord)
(extensions
(list (service-extension account-service-type
(const %colord-accounts))
(service-extension activation-service-type
(const %colord-activation))
;; Colord is a D-Bus service that dbus-daemon can
;; activate.
(service-extension dbus-root-service-type list)
;; Colord provides "color device" rules for udev.
(service-extension udev-service-type list)
;; It provides polkit "actions".
(service-extension polkit-service-type list)))
(default-value colord)
(description
"Run @command{colord}, a system service with a D-Bus
interface to manage the color profiles of input and output devices such as
screens and scanners.")))
(define-deprecated (colord-service #:key (colord colord))
colord-service-type
"Return a service that runs @command{colord}, a system service with a D-Bus
interface to manage the color profiles of input and output devices such as
screens and scanners. It is notably used by the GNOME Color Manager graphical
tool. See @uref{http://www.freedesktop.org/software/colord/, the colord web
site} for more information."
(service colord-service-type colord))
;;;
;;; UDisks.
;;;
(define-record-type* <udisks-configuration>
udisks-configuration make-udisks-configuration
udisks-configuration?
(udisks udisks-configuration-udisks
(default udisks)))
(define %udisks-activation
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(let ((run-dir "/var/run/udisks2"))
(mkdir-p run-dir)
(chmod run-dir #o700)))))
(define udisks-service-type
(let ((udisks-package (lambda (config)
(list (udisks-configuration-udisks config)))))
(service-type (name 'udisks)
(extensions
(list (service-extension polkit-service-type
udisks-package)
(service-extension dbus-root-service-type
udisks-package)
(service-extension udev-service-type
udisks-package)
(service-extension activation-service-type
(const %udisks-activation))
;; Profile 'udisksctl' & co. in the system profile.
(service-extension profile-service-type
udisks-package))))))
(define* (udisks-service #:key (udisks udisks))
"Return a service for @uref{http://udisks.freedesktop.org/docs/latest/,
UDisks}, a @dfn{disk management} daemon that provides user interfaces with
notifications and ways to mount/unmount disks. Programs that talk to UDisks
include the @command{udisksctl} command, part of UDisks, and GNOME Disks."
(service udisks-service-type
(udisks-configuration (udisks udisks))))
;;;
;;; Elogind login and seat management service.
;;;
(define-record-type* <elogind-configuration> elogind-configuration
make-elogind-configuration
elogind-configuration?
(elogind elogind-package
(default elogind))
(kill-user-processes? elogind-kill-user-processes?
(default #f))
(kill-only-users elogind-kill-only-users
(default '()))
(kill-exclude-users elogind-kill-exclude-users
(default '("root")))
(inhibit-delay-max-seconds elogind-inhibit-delay-max-seconds
(default 5))
(handle-power-key elogind-handle-power-key
(default 'poweroff))
(handle-suspend-key elogind-handle-suspend-key
(default 'suspend))
(handle-hibernate-key elogind-handle-hibernate-key
;; (default 'hibernate)
;; XXX Ignore it for now, since we don't
;; yet handle resume-from-hibernation in
;; our initrd.
(default 'ignore))
(handle-lid-switch elogind-handle-lid-switch
(default 'suspend))
(handle-lid-switch-docked elogind-handle-lid-switch-docked
(default 'ignore))
(power-key-ignore-inhibited? elogind-power-key-ignore-inhibited?
(default #f))
(suspend-key-ignore-inhibited? elogind-suspend-key-ignore-inhibited?
(default #f))
(hibernate-key-ignore-inhibited? elogind-hibernate-key-ignore-inhibited?
(default #f))
(lid-switch-ignore-inhibited? elogind-lid-switch-ignore-inhibited?
(default #t))
(holdoff-timeout-seconds elogind-holdoff-timeout-seconds
(default 30))
(idle-action elogind-idle-action
(default 'ignore))
(idle-action-seconds elogind-idle-action-seconds
(default (* 30 60)))
(runtime-directory-size-percent elogind-runtime-directory-size-percent
(default 10))
(runtime-directory-size elogind-runtime-directory-size
(default #f))
(remove-ipc? elogind-remove-ipc?
(default #t))
(suspend-state elogind-suspend-state
(default '("mem" "standby" "freeze")))
(suspend-mode elogind-suspend-mode
(default '()))
(hibernate-state elogind-hibernate-state
(default '("disk")))
(hibernate-mode elogind-hibernate-mode
(default '("platform" "shutdown")))
(hybrid-sleep-state elogind-hybrid-sleep-state
(default '("disk")))
(hybrid-sleep-mode elogind-hybrid-sleep-mode
(default
'("suspend" "platform" "shutdown"))))
(define (elogind-configuration-file config)
(define (yesno x)
(match x
(#t "yes")
(#f "no")
(_ (error "expected #t or #f, instead got:" x))))
(define char-set:user-name
(string->char-set "abcdefghijklmnopqrstuvwxyz0123456789_-"))
(define (valid-list? l pred)
(and-map (lambda (x) (string-every pred x)) l))
(define (user-name-list users)
(unless (valid-list? users char-set:user-name)
(error "invalid user list" users))
(string-join users " "))
(define (enum val allowed)
(unless (memq val allowed)
(error "invalid value" val allowed))
(symbol->string val))
(define (non-negative-integer x)
(unless (exact-integer? x) (error "not an integer" x))
(when (negative? x) (error "negative number not allowed" x))
(number->string x))
(define handle-actions
'(ignore poweroff reboot halt kexec suspend hibernate hybrid-sleep lock))
(define (handle-action x)
(enum x handle-actions))
(define (sleep-list tokens)
(unless (valid-list? tokens char-set:user-name)
(error "invalid sleep list" tokens))
(string-join tokens " "))
(define-syntax ini-file-clause
(syntax-rules ()
((_ config (prop (parser getter)))
(string-append prop "=" (parser (getter config)) "\n"))
((_ config str)
(string-append str "\n"))))
(define-syntax-rule (ini-file config file clause ...)
(plain-file file (string-append (ini-file-clause config clause) ...)))
(ini-file
config "logind.conf"
"[Login]"
("KillUserProcesses" (yesno elogind-kill-user-processes?))
("KillOnlyUsers" (user-name-list elogind-kill-only-users))
("KillExcludeUsers" (user-name-list elogind-kill-exclude-users))
("InhibitDelayMaxSec" (non-negative-integer elogind-inhibit-delay-max-seconds))
("HandlePowerKey" (handle-action elogind-handle-power-key))
("HandleSuspendKey" (handle-action elogind-handle-suspend-key))
("HandleHibernateKey" (handle-action elogind-handle-hibernate-key))
("HandleLidSwitch" (handle-action elogind-handle-lid-switch))
("HandleLidSwitchDocked" (handle-action elogind-handle-lid-switch-docked))
("PowerKeyIgnoreInhibited" (yesno elogind-power-key-ignore-inhibited?))
("SuspendKeyIgnoreInhibited" (yesno elogind-suspend-key-ignore-inhibited?))
("HibernateKeyIgnoreInhibited" (yesno elogind-hibernate-key-ignore-inhibited?))
("LidSwitchIgnoreInhibited" (yesno elogind-lid-switch-ignore-inhibited?))
("HoldoffTimeoutSec" (non-negative-integer elogind-holdoff-timeout-seconds))
("IdleAction" (handle-action elogind-idle-action))
("IdleActionSec" (non-negative-integer elogind-idle-action-seconds))
("RuntimeDirectorySize"
(identity
(lambda (config)
(match (elogind-runtime-directory-size-percent config)
(#f (non-negative-integer (elogind-runtime-directory-size config)))
(percent (string-append (non-negative-integer percent) "%"))))))
("RemoveIPC" (yesno elogind-remove-ipc?))
"[Sleep]"
("SuspendState" (sleep-list elogind-suspend-state))
("SuspendMode" (sleep-list elogind-suspend-mode))
("HibernateState" (sleep-list elogind-hibernate-state))
("HibernateMode" (sleep-list elogind-hibernate-mode))
("HybridSleepState" (sleep-list elogind-hybrid-sleep-state))
("HybridSleepMode" (sleep-list elogind-hybrid-sleep-mode))))
(define (elogind-dbus-service config)
(list (wrapped-dbus-service (elogind-package config)
"libexec/elogind/elogind"
`(("ELOGIND_CONF_FILE"
,(elogind-configuration-file config))))))
(define (pam-extension-procedure config)
"Return an extension for PAM-ROOT-SERVICE-TYPE that ensures that all the PAM
services use 'pam_elogind.so', a module that allows elogind to keep track of
logged-in users (run 'loginctl' to see elogind's world view of users and
seats.)"
(define pam-elogind
(pam-entry
(control "required")
(module (file-append (elogind-package config)
"/lib/security/pam_elogind.so"))))
(list (lambda (pam)
(pam-service
(inherit pam)
(session (cons pam-elogind (pam-service-session pam)))))))
(define (elogind-shepherd-service config)
"Return a Shepherd service to start elogind according to @var{config}."
(list (shepherd-service
(requirement '(dbus-system))
(provision '(elogind))
(start #~(make-forkexec-constructor
(list #$(file-append (elogind-package config)
"/libexec/elogind/elogind"))
#:environment-variables
(list (string-append "ELOGIND_CONF_FILE="
#$(elogind-configuration-file
config)))))
(stop #~(make-kill-destructor)))))
(define elogind-service-type
(service-type (name 'elogind)
(extensions
(list (service-extension dbus-root-service-type
elogind-dbus-service)
(service-extension udev-service-type
(compose list elogind-package))
(service-extension polkit-service-type
(compose list elogind-package))
;; Start elogind from the Shepherd rather than waiting
;; for bus activation. This ensures that it can handle
;; events like lid close, etc.
(service-extension shepherd-root-service-type
elogind-shepherd-service)
;; Provide the 'loginctl' command.
(service-extension profile-service-type
(compose list elogind-package))
;; Extend PAM with pam_elogind.so.
(service-extension pam-root-service-type
pam-extension-procedure)
;; We need /run/user, /run/systemd, etc.
(service-extension file-system-service-type
(const %elogind-file-systems))))
(default-value (elogind-configuration))))
(define* (elogind-service #:key (config (elogind-configuration)))
"Return a service that runs the @command{elogind} login and seat management
service. The @command{elogind} service integrates with PAM to allow other
system components to know the set of logged-in users as well as their session
types (graphical, console, remote, etc.). It can also clean up after users
when they log out."
(service elogind-service-type config))
;;;
;;; Fontconfig and other desktop file-systems.
;;;
(define %fontconfig-file-system
(file-system
(device "none")
(mount-point "/var/cache/fontconfig")
(type "tmpfs")
(flags '(read-only))
(check? #f)))
;; The global fontconfig cache directory can sometimes contain stale entries,
;; possibly referencing fonts that have been GC'd, so mount it read-only.
;; As mentioned https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36924#8 and
;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=38046#10 and elsewhere.
(define fontconfig-file-system-service
(simple-service 'fontconfig-file-system
file-system-service-type
(list %fontconfig-file-system)))
;;;
;;; AccountsService service.
;;;
(define %accountsservice-activation
#~(begin
(use-modules (guix build utils))
(mkdir-p "/var/lib/AccountsService")))
(define accountsservice-service-type
(service-type (name 'accountsservice)
(extensions
(list (service-extension activation-service-type
(const %accountsservice-activation))
(service-extension dbus-root-service-type list)
(service-extension polkit-service-type list)))))
(define* (accountsservice-service #:key (accountsservice accountsservice))
"Return a service that runs AccountsService, a system service that
can list available accounts, change their passwords, and so on.
AccountsService integrates with PolicyKit to enable unprivileged users to
acquire the capability to modify their system configuration.
@uref{https://www.freedesktop.org/wiki/Software/AccountsService/, the
accountsservice web site} for more information."
(service accountsservice-service-type accountsservice))
;;;
;;; cups-pk-helper service.
;;;
(define cups-pk-helper-service-type
(service-type
(name 'cups-pk-helper)
(description
"PolicyKit helper to configure CUPS with fine-grained privileges.")
(extensions
(list (service-extension dbus-root-service-type list)
(service-extension polkit-service-type list)))
(default-value cups-pk-helper)))
;;;
;;; Scanner access via SANE.
;;;
(define %sane-accounts
;; The '60-libsane.rules' udev rules refers to the "scanner" group.
(list (user-group (name "scanner") (system? #t))))
(define sane-service-type
(service-type
(name 'sane)
(description
"This service provides access to scanners @i{via}
@uref{http://www.sane-project.org, SANE} by installing the necessary udev
rules.")
(default-value sane-backends-minimal)
(extensions
(list (service-extension udev-service-type list)
(service-extension account-service-type
(const %sane-accounts))))))
;;;
;;; GNOME desktop service.
;;;
(define-record-type* <gnome-desktop-configuration> gnome-desktop-configuration
make-gnome-desktop-configuration
gnome-desktop-configuration?
(gnome gnome-package (default gnome)))
(define (gnome-polkit-settings config)
"Return the list of GNOME dependencies that provide polkit actions and
rules."
(let ((gnome (gnome-package config)))
(map (lambda (name)
((package-direct-input-selector name) gnome))
'("gnome-settings-daemon"
"gnome-control-center"
"gnome-system-monitor"
"gvfs"))))
(define gnome-desktop-service-type
(service-type
(name 'gnome-desktop)
(extensions
(list (service-extension polkit-service-type
gnome-polkit-settings)
(service-extension profile-service-type
(compose list
gnome-package))))
(default-value (gnome-desktop-configuration))
(description "Run the GNOME desktop environment.")))
(define-deprecated (gnome-desktop-service #:key (config
(gnome-desktop-configuration)))
gnome-desktop-service-type
"Return a service that adds the @code{gnome} package to the system profile,
and extends polkit with the actions from @code{gnome-settings-daemon}."
(service gnome-desktop-service-type config))
;; MATE Desktop service.
;; TODO: Add mate-screensaver.
(define-record-type* <mate-desktop-configuration> mate-desktop-configuration
make-mate-desktop-configuration
mate-desktop-configuration?
(mate-package mate-package (default mate)))
(define (mate-polkit-extension config)
"Return the list of packages for CONFIG's MATE package that extend polkit."
(let ((mate (mate-package config)))
(map (lambda (input)
((package-direct-input-selector input) mate))
'("mate-system-monitor" ;kill, renice processes
"mate-settings-daemon" ;date/time settings
"mate-power-manager" ;modify brightness
"mate-control-center" ;RandR, display properties FIXME
"mate-applets")))) ;CPU frequency scaling
(define mate-desktop-service-type
(service-type
(name 'mate-desktop)
(extensions
(list (service-extension polkit-service-type
mate-polkit-extension)
(service-extension profile-service-type
(compose list
mate-package))))
(default-value (mate-desktop-configuration))
(description "Run the MATE desktop environment.")))
(define-deprecated (mate-desktop-service #:key
(config
(mate-desktop-configuration)))
mate-desktop-service-type
"Return a service that adds the @code{mate} package to the system profile,
and extends polkit with the actions from @code{mate-settings-daemon}."
(service mate-desktop-service-type config))
;;;
;;; XFCE desktop service.
;;;
(define-record-type* <xfce-desktop-configuration> xfce-desktop-configuration
make-xfce-desktop-configuration
xfce-desktop-configuration?
(xfce xfce-package (default xfce)))
(define (xfce-polkit-settings config)
"Return the list of XFCE dependencies that provide polkit actions and
rules."
(let ((xfce (xfce-package config)))
(map (lambda (name)
((package-direct-input-selector name) xfce))
'("thunar"
"xfce4-power-manager"))))
(define xfce-desktop-service-type
(service-type
(name 'xfce-desktop)
(extensions
(list (service-extension polkit-service-type
xfce-polkit-settings)
(service-extension profile-service-type
(compose list xfce-package))))
(default-value (xfce-desktop-configuration))
(description "Run the Xfce desktop environment.")))
(define-deprecated (xfce-desktop-service #:key (config
(xfce-desktop-configuration)))
xfce-desktop-service-type
"Return a service that adds the @code{xfce} package to the system profile,
and extends polkit with the ability for @code{thunar} to manipulate the file
system as root from within a user session, after the user has authenticated
with the administrator's password."
(service xfce-desktop-service-type config))
;;;
;;; X11 socket directory service
;;;
(define x11-socket-directory-service
;; Return a service that creates /tmp/.X11-unix. When using X11, libxcb
;; takes care of creating that directory. However, when using XWayland, we
;; need to create beforehand. Thus, create it unconditionally here.
(simple-service 'x11-socket-directory
activation-service-type
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(let ((directory "/tmp/.X11-unix"))
(mkdir-p directory)
(chmod directory #o777))))))
;;;
;;; Enlightenment desktop service.
;;;
(define-record-type* <enlightenment-desktop-configuration>
enlightenment-desktop-configuration make-enlightenment-desktop-configuration
enlightenment-desktop-configuration?
;; <package>
(enlightenment enlightenment-package
(default enlightenment)))
(define (enlightenment-setuid-programs enlightenment-desktop-configuration)
(match-record enlightenment-desktop-configuration
<enlightenment-desktop-configuration>
(enlightenment)
(list (file-append enlightenment
"/lib/enlightenment/utils/enlightenment_sys")
(file-append enlightenment
"/lib/enlightenment/utils/enlightenment_system")
(file-append enlightenment
"/lib/enlightenment/utils/enlightenment_ckpasswd"))))
(define enlightenment-desktop-service-type
(service-type
(name 'enlightenment-desktop)
(extensions
(list (service-extension dbus-root-service-type
(compose list
(package-direct-input-selector
"efl")
enlightenment-package))
(service-extension setuid-program-service-type
enlightenment-setuid-programs)
(service-extension profile-service-type
(compose list
enlightenment-package))))
(default-value (enlightenment-desktop-configuration))
(description
"Return a service that adds the @code{enlightenment} package to the system
profile, and extends dbus with the ability for @code{efl} to generate
thumbnails and makes setuid the programs which enlightenment needs to function
as expected.")))
;;;
;;; inputattach-service-type
;;;
(define-record-type* <inputattach-configuration>
inputattach-configuration
make-inputattach-configuration
inputattach-configuration?
(device-type inputattach-configuration-device-type
(default "wacom"))
(device inputattach-configuration-device
(default "/dev/ttyS0"))
(baud-rate inputattach-configuration-baud-rate
(default #f))
(log-file inputattach-configuration-log-file
(default #f)))
(define inputattach-shepherd-service
(match-lambda
(($ <inputattach-configuration> type device baud-rate log-file)
(let ((args (append (if baud-rate
(list "--baud" (number->string baud-rate))
'())
(list (string-append "--" type)
device))))
(list (shepherd-service
(provision '(inputattach))
(requirement '(udev))
(documentation "inputattach daemon")
(start #~(make-forkexec-constructor
(cons (string-append #$inputattach
"/bin/inputattach")
(quote #$args))
#:log-file #$log-file))
(stop #~(make-kill-destructor))))))))
(define inputattach-service-type
(service-type
(name 'inputattach)
(extensions
(list (service-extension shepherd-root-service-type
inputattach-shepherd-service)))
(default-value (inputattach-configuration))
(description "Return a service that runs inputattach on a device and
dispatches events from it.")))
;;;
;;; gnome-keyring-service-type
;;;
(define-record-type* <gnome-keyring-configuration> gnome-keyring-configuration
make-gnome-keyring-configuration
gnome-keyring-configuration?
(keyring gnome-keyring-package (default gnome-keyring))
(pam-services gnome-keyring-pam-services (default '(("gdm-password" . login)
("passwd" . passwd)))))
(define (pam-gnome-keyring config)
(define (%pam-keyring-entry . arguments)
(pam-entry
(control "optional")
(module (file-append (gnome-keyring-package config)
"/lib/security/pam_gnome_keyring.so"))
(arguments arguments)))
(list
(lambda (service)
(case (assoc-ref (gnome-keyring-pam-services config)
(pam-service-name service))
((login)
(pam-service
(inherit service)
(auth (append (pam-service-auth service)
(list (%pam-keyring-entry))))
(session (append (pam-service-session service)
(list (%pam-keyring-entry "auto_start"))))))
((passwd)
(pam-service
(inherit service)
(password (append (pam-service-password service)
(list (%pam-keyring-entry))))))
(else service)))))
(define gnome-keyring-service-type
(service-type
(name 'gnome-keyring)
(extensions (list
(service-extension pam-root-service-type pam-gnome-keyring)))
(default-value (gnome-keyring-configuration))
(description "Return a service, that adds the @code{gnome-keyring} package
to the system profile and extends PAM with entries using
@code{pam_gnome_keyring.so}, unlocking a user's login keyring when they log in
or setting its password with passwd.")))
;;;
;;; polkit-wheel-service -- Allow wheel group to perform admin actions
;;;
(define polkit-wheel
(file-union
"polkit-wheel"
`(("share/polkit-1/rules.d/wheel.rules"
,(plain-file
"wheel.rules"
"polkit.addAdminRule(function(action, subject) {
return [\"unix-group:wheel\"];
});
")))))
(define polkit-wheel-service
(simple-service 'polkit-wheel polkit-service-type (list polkit-wheel)))
;;;
;;; The default set of desktop services.
;;;
(define %desktop-services
;; List of services typically useful for a "desktop" use case.
(cons* (service gdm-service-type)
;; Screen lockers are a pretty useful thing and these are small.
(screen-locker-service slock)
(screen-locker-service xlockmore "xlock")
;; Add udev rules for MTP devices so that non-root users can access
;; them.
(simple-service 'mtp udev-service-type (list libmtp))
;; Add udev rules for scanners.
(service sane-service-type)
;; Add polkit rules, so that non-root users in the wheel group can
;; perform administrative tasks (similar to "sudo").
polkit-wheel-service
;; The global fontconfig cache directory can sometimes contain
;; stale entries, possibly referencing fonts that have been GC'd,
;; so mount it read-only.
fontconfig-file-system-service
;; NetworkManager and its applet.
(service network-manager-service-type)
(service wpa-supplicant-service-type) ;needed by NetworkManager
(simple-service 'network-manager-applet
profile-service-type
(list network-manager-applet))
(service modem-manager-service-type)
(service usb-modeswitch-service-type)
;; The D-Bus clique.
(service avahi-service-type)
(udisks-service)
(service upower-service-type)
(accountsservice-service)
(service cups-pk-helper-service-type)
(service colord-service-type)
(geoclue-service)
(service polkit-service-type)
(elogind-service)
(dbus-service)
(service ntp-service-type)
x11-socket-directory-service
(service pulseaudio-service-type)
(service alsa-service-type)
%base-services))
;;; desktop.scm ends here