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| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2023 Felix Lechner <felix.lechner@lease-up.com>
;;;
;;; 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 heimdal)
#:use-module (gnu packages kerberos)
#:use-module (gnu services)
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (ice-9 match)
#:export (heimdal-kdc-configuration
heimdal-kdc-service-type
heimdal-kadmind-configuration
heimdal-kadmind-service-type))
\f
;;;
;;; Heimdal Kdc
;;;
(define-maybe/no-serialization string)
(define (non-negative-integer? val)
(and (exact-integer? val) (not (negative? val))))
(define-maybe/no-serialization non-negative-integer)
(define-configuration/no-serialization heimdal-kdc-configuration
(heimdal
(file-like heimdal)
"The heimdal package to use.")
(config-file
maybe-string
"Configuration file for Heimdal KDC server.")
(require-preauth?
(boolean #t)
"Require pre-authentication in the initial AS-REQ for all principals.")
(max-request-size
maybe-non-negative-integer
"Maximum size of requests the server is willing to handle.")
(enable-http?
(boolean #f)
"Listen on port 80 and handle requests encapsulated in HTTP.")
(v4-realm
maybe-string
"Realm for version 4 requests.")
(ports
(list-of-strings '())
"Ports to listen on.")
(addresses
(list-of-strings '())
"Addresses to listen on.")
(disable-des?
(boolean #f)
"Disable all DES encryption types."))
(define (heimdal-kdc-shepherd-service config)
"Return a <shepherd-service> for Heimdal's kdc for CONFIG."
(match-record config
<heimdal-kdc-configuration> (heimdal config-file require-preauth?
max-request-size enable-http?
v4-realm ports addresses
disable-des?)
(shepherd-service
(documentation "Run the Heimdal Kerberos KDC daemon (heimdal-kdc).")
(provision '(heimdal-kdc))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append heimdal "/libexec/kdc")
#$@(if (maybe-value-set? config-file)
`(,(string-append "--config-file=" (maybe-value config-file)))
'())
#$@(if require-preauth? '() '("--no-require-preauth"))
#$@(if (maybe-value-set? max-request-size)
`(,(string-append
"--max-request-size="
(number->string (maybe-value max-request-size))))
'())
#$@(if enable-http? '("--enable-http") '())
#$@(if (maybe-value-set? v4-realm)
`(,(string-append "--v4-realm=" (maybe-value v4-realm)))
'())
;; ports parameter is white-space separated
#$@(if (null? ports)
'()
`(,(string-append "--ports=" (string-join ports))))
;; addresses parameter is white-space separated
#$@(if (null? addresses)
'()
`(,(string-append "--addresses=" (string-join addresses))))
#$@(if disable-des? '("--disable-des") '()))
#:log-file "/var/log/kdc-shepherd"))
(stop #~(make-kill-destructor)))))
(define heimdal-kdc-service-type
(service-type
(name 'heimdal-kdc)
(description
"Run the Heimdal @command{kdc} daemon.")
(extensions
(list
(service-extension shepherd-root-service-type
(compose list heimdal-kdc-shepherd-service))))
(default-value (heimdal-kdc-configuration))))
\f
;;;
;;; Heimdal Kadmind
;;;
(define-configuration/no-serialization heimdal-kadmind-configuration
(heimdal
(file-like heimdal)
"The heimdal package to use.")
(config-file
maybe-string
"Configuration file for Heimdal Kadmind server.")
(key-file
maybe-string
"Location of master key file.")
(keytab
maybe-string
"Kerberos keytab to use.")
(realm
maybe-string
"Kerberos realm to serve.")
(debug?
(boolean #f)
"Enable debugging.")
(ports
(list-of-strings '())
"Ports to listen on."))
(define (heimdal-kadmind-shepherd-service config)
"Return a <shepherd-service> for Heimdal's kadmind for CONFIG."
(match-record config
<heimdal-kadmind-configuration> (heimdal config-file key-file keytab
realm debug? ports)
(shepherd-service
(documentation "Run the Heimdal Kerberos admin daemon (heimdal-kadmind).")
(provision '(heimdal-kadmind))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append heimdal "/libexec/kadmind")
#$@(if (maybe-value-set? config-file)
`(,(string-append "--config-file=" (maybe-value config-file)))
'())
#$@(if (maybe-value-set? key-file)
`(,(string-append "--key-file=" (maybe-value key-file)))
'())
#$@(if (maybe-value-set? keytab)
`(,(string-append "--keytab=" (maybe-value keytab)))
'())
#$@(if (maybe-value-set? realm)
`(,(string-append "--realm=" (maybe-value realm)))
'())
#$@(if debug? '("--debug") '())
;; ports parameter is white-space separated
#$@(if (null? ports)
'()
`(,(string-append "--ports=" (string-join ports)))))))
(stop #~(make-kill-destructor)))))
(define heimdal-kadmind-service-type
(service-type
(name 'heimdal-kadmind)
(description
"Run the Heimdal @command{kadmind} daemon.")
(extensions
(list
(service-extension shepherd-root-service-type
(compose list heimdal-kadmind-shepherd-service))))
(default-value (heimdal-kadmind-configuration))))
|