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Diffstat (limited to 'whispers/services/console.scm')
-rw-r--r-- | whispers/services/console.scm | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/whispers/services/console.scm b/whispers/services/console.scm new file mode 100644 index 0000000..bb72a22 --- /dev/null +++ b/whispers/services/console.scm @@ -0,0 +1,89 @@ +;;; Whispers --- Stealth VPN and ssh tunneler +;;; Copyright © 2024 Runciter <runciter@whispers-vpn.org> +;;; +;;; This file is part of Whispers. +;;; +;;; Whispers 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. +;;; +;;; Whispers 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 Whispers. If not, see <http://www.gnu.org/licenses/>. + +(define-module (whispers services console) + #:use-module (guix gexp) + #:use-module (guix records) + #:use-module (gnu services) + #:use-module (gnu services shepherd) + #:use-module (gnu packages linux) + #:export (console-blank-configuration + console-blank-configuration? + make-console-blank-configuration + this-console-blank-configuration + console-blank-service-type)) + +(define-record-type* <console-blank-configuration> + console-blank-configuration make-console-blank-configuration + console-blank-configuration? + this-console-blank-configuration + ;; A file-like object + (util-linux-package console-blank-configuration-util-linux-package + (default util-linux)) + ;; An integer + (blank-time console-blank-configuration-blank-time + (default 10)) + ;; An integer + (powerdown-time console-blank-configuration-powerdown-time + (default 10))) + +(define (console-blank-shepherd-services config) + "Return a list of one shepherd services setting up Linux console screen +blanking and powerdown times, configurable by CONFIG, a record of the +<console-blank-configuration> type." + (let ((util-linux (console-blank-configuration-util-linux-package config)) + (blank (number->string + (console-blank-configuration-blank-time config))) + (powerdown (number->string + (console-blank-configuration-powerdown-time config)))) + (list + (shepherd-service + (documentation "Setup Linux console screen blanking and powerdown.") + (provision (list 'console-blank)) + + ;; Start after mingetty has been started on tty1 + (requirement (list 'term-tty1 'console-font-tty1)) + + (start #~(lambda _ + (case (status:exit-val + (system + (string-append #$(file-append util-linux + "/bin/setterm") + " --blank=" + #$blank + " --powerdown=" + #$powerdown + " </dev/tty1 >/dev/tty1"))) + ((0) #t) + (else #f)))) + (stop #~(const #f)) + (respawn? #f))))) + +(define console-blank-service-type + (service-type + (name 'console-blank) + (description "Setup screen blanking and powerdown on the Linux console") + (extensions + (list (service-extension shepherd-root-service-type + console-blank-shepherd-services) + (service-extension + profile-service-type + (lambda (config) + (list + (console-blank-configuration-util-linux-package config)))))) + (default-value (console-blank-configuration)))) |