mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-24 21:38:07 -05:00
417175096a
* gnu/services/avahi.scm (avahi-service): Add 'system?' field to 'user-group' form. * gnu/services/base.scm (guix-service): Likewise. * gnu/services/dbus.scm (dbus-service): Likewise. * gnu/services/networking.scm (tor-service): Likewise.
122 lines
5 KiB
Scheme
122 lines
5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
|
|
;;;
|
|
;;; 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 dbus)
|
|
#:use-module (gnu services)
|
|
#:use-module (gnu system shadow)
|
|
#:use-module (gnu packages glib)
|
|
#:use-module (guix monads)
|
|
#:use-module (guix gexp)
|
|
#:export (dbus-service))
|
|
|
|
;;; Commentary:
|
|
;;;
|
|
;;; This module supports the configuration of the D-Bus message bus
|
|
;;; (http://dbus.freedesktop.org/). D-Bus is an inter-process communication
|
|
;;; facility. Its "system bus" is used to allow system services to
|
|
;;; communicate and be notified of system-wide events.
|
|
;;;
|
|
;;; Code:
|
|
|
|
(define (dbus-configuration-directory dbus services)
|
|
"Return a configuration directory for @var{dbus} that includes the
|
|
@code{etc/dbus-1/system.d} directories of each package listed in
|
|
@var{services}."
|
|
(define build
|
|
#~(begin
|
|
(use-modules (sxml simple))
|
|
|
|
(define (services->sxml services)
|
|
;; Return the SXML 'includedir' clauses for DIRS.
|
|
`(busconfig
|
|
,@(map (lambda (dir)
|
|
`(includedir ,(string-append dir
|
|
"/etc/dbus-1/system.d")))
|
|
services)))
|
|
|
|
(mkdir #$output)
|
|
(copy-file (string-append #$dbus "/etc/dbus-1/system.conf")
|
|
(string-append #$output "/system.conf"))
|
|
|
|
;; The default 'system.conf' has an <includedir> clause for
|
|
;; 'system.d', so create it.
|
|
(mkdir (string-append #$output "/system.d"))
|
|
|
|
;; 'system-local.conf' is automatically included by the default
|
|
;; 'system.conf', so this is where we stuff our own things.
|
|
(call-with-output-file (string-append #$output "/system-local.conf")
|
|
(lambda (port)
|
|
(sxml->xml (services->sxml (list #$@services))
|
|
port)))))
|
|
|
|
(gexp->derivation "dbus-configuration" build))
|
|
|
|
(define* (dbus-service services #:key (dbus dbus))
|
|
"Return a service that runs the system bus, using @var{dbus}, with support
|
|
for @var{services}.
|
|
|
|
@var{services} must be a list of packages that provide an
|
|
@file{etc/dbus-1/system.d} directory containing additional D-Bus configuration
|
|
and policy files. For example, to allow avahi-daemon to use the system bus,
|
|
@var{services} must be equal to @code{(list avahi)}."
|
|
(mlet %store-monad ((conf (dbus-configuration-directory dbus services)))
|
|
(return
|
|
(service
|
|
(documentation "Run the D-Bus system daemon.")
|
|
(provision '(dbus-system))
|
|
(requirement '(user-processes))
|
|
(start #~(make-forkexec-constructor
|
|
(list (string-append #$dbus "/bin/dbus-daemon")
|
|
"--nofork"
|
|
(string-append "--config-file=" #$conf "/system.conf"))))
|
|
(stop #~(make-kill-destructor))
|
|
(user-groups (list (user-group
|
|
(name "messagebus")
|
|
(system? #t))))
|
|
(user-accounts (list (user-account
|
|
(name "messagebus")
|
|
(group "messagebus")
|
|
(system? #t)
|
|
(comment "D-Bus system bus user")
|
|
(home-directory "/var/run/dbus")
|
|
(shell
|
|
"/run/current-system/profile/sbin/nologin"))))
|
|
(activate #~(begin
|
|
(use-modules (guix build utils))
|
|
|
|
(mkdir-p "/var/run/dbus")
|
|
|
|
(let ((user (getpwnam "messagebus")))
|
|
(chown "/var/run/dbus"
|
|
(passwd:uid user) (passwd:gid user)))
|
|
|
|
(unless (file-exists? "/etc/machine-id")
|
|
(format #t "creating /etc/machine-id...~%")
|
|
(let ((prog (string-append #$dbus "/bin/dbus-uuidgen")))
|
|
;; XXX: We can't use 'system' because the initrd's
|
|
;; guile system(3) only works when 'sh' is in $PATH.
|
|
(let ((pid (primitive-fork)))
|
|
(if (zero? pid)
|
|
(call-with-output-file "/etc/machine-id"
|
|
(lambda (port)
|
|
(close-fdes 1)
|
|
(dup2 (port->fdes port) 1)
|
|
(execl prog)))
|
|
(waitpid pid)))))))))))
|
|
|
|
;;; dbus.scm ends here
|