;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Sou Bunnbu <iyzsong@member.fsf.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 sysctl)
  #:use-module (gnu services)
  #:use-module (gnu services shepherd)
  #:use-module (gnu packages linux)
  #:use-module (guix gexp)
  #:use-module (guix records)
  #:use-module (srfi srfi-1)
  #:use-module (ice-9 match)
  #:export (sysctl-configuration
            sysctl-service-type))


;;;
;;; System Control Service.
;;;

(define-record-type* <sysctl-configuration>
  sysctl-configuration make-sysctl-configuration
  sysctl-configuration?
  (sysctl   sysctl-configuration-sysctl    ; path of the 'sysctl' command
            (default (file-append procps "/sbin/sysctl")))
  (settings sysctl-configuration-settings  ; alist of string pairs
            (default '())))

(define (sysctl-configuration-settings->sysctl.conf settings)
  "Return a file for @command{sysctl} to set kernel parameters as specified by
@var{settings}."
  (apply mixed-text-file "sysctl.conf"
         (append-map (match-lambda
                       ((key . value)
                        (list key "=" value "\n")))
                     settings)))

(define sysctl-shepherd-service
  (match-lambda
    (($ <sysctl-configuration> sysctl settings)
     (let ((sysctl.conf
            (sysctl-configuration-settings->sysctl.conf settings)))
       (shepherd-service
        (documentation "Configure kernel parameters at boot.")
        (provision '(sysctl))
        (start #~(lambda _
                   (zero? (system* #$sysctl "--load" #$sysctl.conf))))
        (one-shot? #t))))))

(define sysctl-service-type
  (service-type
   (name 'sysctl)
   (extensions
    (list (service-extension shepherd-root-service-type
                             (compose list sysctl-shepherd-service))))
   (compose concatenate)
   (extend (lambda (config settings)
             (sysctl-configuration
              (inherit config)
              (settings (append (sysctl-configuration-settings config)
                                settings)))))
   (default-value (sysctl-configuration))))
n></td><td><a href='/guix/commit/gnu/packages/rdesktop.scm?id=06f25a9a85be1bbe7a709e58ce41c1a834e5f1ae'>gnu: xrdp: Update to 0.9.23.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rdesktop.scm (xrdp): Update to 0.9.23.1.

Change-Id: If5a01e38dc04bd013118d21ff11a46f3e7dddfd2
Signed-off-by: Efraim Flashner &lt;efraim@flashner.co.il&gt;
</span></span></td><td>Andy Tai</td></tr>
<tr><td><span title='2023-10-04 15:09:26 +0200'>2023-10-04</span></td><td><a href='/guix/commit/gnu/packages/rdesktop.scm?id=264baefa881cf53d451bdfee3dcd6b2ade796d26'>gnu: freerdp: Update to 2.11.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rdesktop.scm (freerdp): Update to 2.11.2.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Timotej Lazar</td></tr>
<tr><td><span title='2023-09-25 11:30:02 +0100'>2023-09-25</span></td><td><a href='/guix/commit/gnu/packages/rdesktop.scm?id=4aa2c04395ea489e874016a17ef2aff20b98cd32'>gnu: freerdp: Update to 2.11.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rdesktop.scm (freerdp): Update to 2.11.1.
[inputs]: Add pcsc-lite.

Signed-off-by: Christopher Baines &lt;mail@cbaines.net&gt;
</span></span></td><td>Timotej Lazar</td></tr>
<tr><td><span title='2023-09-04 22:46:06 -0400'>2023-09-04</span></td><td><a href='/guix/commit/gnu/packages/rdesktop.scm?id=5a61bd462315ef530f7f8e76774aea8acbdb84d6'>gnu: freerdp: Enable server build.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rdesktop.scm (freerdp): Enable server build.
[phases] (configure-flags): Enable server build flags.
[inputs]: Add server build dependencies and additional protocols
cairo, dbus, gsm, lame, libxdamage, opencl, openh264, openssl.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Andy Tai</td></tr>