guix-play/gnu/services/kerberos.scm
John Darrington 859e367d07
gnu: Add pam-krb5 service.
* doc/guix.texi (Kerberos Services): New node.
* gnu/services/kerberos.scm: New file.
* gnu/local.mk: Add it.
2016-11-08 21:35:26 +01:00

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2.5 KiB
Scheme

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 John Darrington <jmd@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 kerberos)
#:use-module (gnu packages admin)
#:use-module (gnu services)
#:use-module (gnu system pam)
#:use-module (guix gexp)
#:use-module (guix records)
#:export (pam-krb5-configuration
pam-krb5-configuration?
pam-krb5-service-type))
(define-record-type* <pam-krb5-configuration>
pam-krb5-configuration make-pam-krb5-configuration
pam-krb5-configuration?
(pam-krb5 pam-krb5-configuration-pam-krb5
(default pam-krb5))
(minimum-uid pam-krb5-configuration-minimum-uid
(default 1000)))
(define (pam-krb5-pam-service config)
"Return a PAM service for Kerberos authentication."
(lambda (pam)
(define pam-krb5-module
#~(string-append #$(pam-krb5-configuration-pam-krb5 config) "/lib/security/pam_krb5.so"))
(let ((pam-krb5-sufficient
(pam-entry
(control "sufficient")
(module pam-krb5-module)
(arguments (list
(format #f "minimum_uid=~a"
(pam-krb5-configuration-minimum-uid config)))))))
(pam-service
(inherit pam)
(auth (cons* pam-krb5-sufficient
(pam-service-auth pam)))
(session (cons* pam-krb5-sufficient
(pam-service-session pam)))
(account (cons* pam-krb5-sufficient
(pam-service-account pam)))))))
(define (pam-krb5-pam-services config)
(list (pam-krb5-pam-service config)))
(define pam-krb5-service-type
(service-type (name 'pam-krb5)
(extensions
(list
(service-extension pam-root-service-type
pam-krb5-pam-services)))))