;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.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 auditd)
  #:use-module (gnu services)
  #:use-module (gnu services configuration)
  #:use-module (gnu services base)
  #:use-module (gnu services shepherd)
  #:use-module (gnu packages admin)
  #:use-module (guix records)
  #:use-module (guix gexp)
  #:use-module (guix packages)
  #:export (auditd-configuration
            auditd-service-type))

; /etc/audit/audit.rules

(define-configuration auditd-configuration
  (audit
   (package audit)
   "Audit package."))

(define (auditd-shepherd-service config)
  (let* ((audit (auditd-configuration-audit config)))
    (list (shepherd-service
           (documentation "Auditd allows you to audit file system accesses.")
           (provision '(auditd))
           (start #~(make-forkexec-constructor
                     (list (string-append #$audit "/sbin/auditd"))))
           (stop #~(make-kill-destructor))))))

(define auditd-service-type
  (service-type (name 'auditd)
                (description "Allows auditing file system accesses.")
                (extensions
                 (list
                  (service-extension shepherd-root-service-type
                                     auditd-shepherd-service)))
                (default-value (auditd-configuration))))