;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2016 John Darrington ;;; ;;; 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 . (define-module (gnu services kerberos) #:use-module (gnu services) #:use-module (gnu services configuration) #:use-module (gnu system pam) #:use-module (guix gexp) #:use-module (guix records) #:use-module (srfi srfi-1) #:use-module (srfi srfi-34) #:use-module (srfi srfi-35) #:use-module (ice-9 match) #:export (pam-krb5-configuration pam-krb5-configuration? pam-krb5-service-type krb5-realm krb5-realm? krb5-configuration krb5-configuration? krb5-service-type)) ;; TODO Use %unset-value and the define-maybe infrastructure. (define unset-field (list 'unset-field)) (define (predicate/unset pred) (lambda (x) (or (eq? x unset-field) (pred x)))) (define string/unset? (predicate/unset string?)) (define boolean/unset? (predicate/unset boolean?)) (define integer/unset? (predicate/unset integer?)) (define (uglify-field-name field-name) "Return FIELD-NAME with all instances of '-' replaced by '_' and any trailing '?' removed." (let ((str (symbol->string field-name))) (string-join (string-split (if (string-suffix? "?" str) 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015, 2016, 2017, 2020, 2021, 2022 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2019–2022 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 packages freeipmi)
  #:use-module (guix packages)
  #:use-module (guix licenses)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages gnupg))

(define-public freeipmi
  (package
    (name "freeipmi")
    (version "1.6.14")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://gnu/freeipmi/freeipmi-"
                                 version ".tar.gz"))
             (sha256
              (base32
               "1dgd2izbp6mqk7l0bgw9fkpvl4mjz672p8baz3ac9k5pfrfaqg8s"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags '("--disable-static"
                           ,@(if (%current-target-system)
                               ;; We cannot check for these devices
                               ;; when cross compiling.
                               `("ac_cv_file__dev_random=yes"
                                 "ac_cv_file__dev_urandom=yes")
                               '()))))
    (inputs
     (list libgcrypt))
    (home-page "https://www.gnu.org/software/freeipmi/")
    (synopsis "Platform management, including sensor and power monitoring")
    (description
     "GNU FreeIPMI is a collection of in-band and out-of-band IPMI software
in accordance with the IPMI v1.5/2.0 specification.  These programs provide a
set of interfaces for platform management.  Common functionality includes
sensor monitoring, system event monitoring, power control and
serial-over-LAN.")
    (license gpl3+)))
generated by cgit
unless (eq? val unset-field) (serialize-field* field-name val))) (define (free-form-fields? val) (match val (() #t) ((((? symbol?) . (? string)) . val) (free-form-fields? val)) (_ #f))) (define (serialize-free-form-fields field-name val) (for-each (match-lambda ((k . v) (serialize-field* k v))) val)) (define non-negative-integer/unset? (predicate/unset non-negative-integer?)) (define (realm-list? val) (and (list? val) (and-map (lambda (x) (krb5-realm? x)) val))) (define (serialize-realm-list field-name val) (format #t "\n[~a]\n" field-name) (for-each (lambda (realm) (format #t "\n~a = {\n" (krb5-realm-name realm)) (for-each (lambda (field) (unless (eq? 'name (configuration-field-name field)) ((configuration-field-serializer field) (configuration-field-name field) ((configuration-field-getter field) realm)))) krb5-realm-fields) (format #t "}\n")) val)) ;; For a more detailed explanation of these fields see man 5 krb5.conf (define-configuration krb5-realm (name (string/unset unset-field) "The name of the realm.") (kdc (end-point unset-field) "The host and port on which the realm's Key Distribution Server listens.") (admin-server (string/unset unset-field) "The Host running the administration server for the realm.") (master-kdc (string/unset unset-field) "If an attempt to get credentials fails because of an invalid password, the client software will attempt to contact the master KDC.") (kpasswd-server (string/unset unset-field) "The server where password changes are performed.") (auth-to-local (free-form-fields '()) "Rules to map between principals and local users.") (auth-to-local-names (free-form-fields '()) "Explicit mappings between principal names and local user names.") (http-anchors (free-form-fields '()) "Useful only when http proxy is used to access KDC or KPASSWD.") ;; The following are useful only for working with V4 services (default-domain (string/unset unset-field) "The domain used to expand host names when translating Kerberos 4 service principals to Kerberos 5 principals") (v4-instance-convert (free-form-fields '()) "Exceptions to the default-domain mapping rule.") (v4-realm (string/unset unset-field) "Used when the V4 realm name and the V5 realm name are not the same, but still share the same principal names and passwords")) ;; For a more detailed explanation of these fields see man 5 krb5.conf (define-configuration krb5-configuration (allow-weak-crypto? (boolean/unset unset-field) "If true, permits access to services which only offer weak encryption.") (ap-req-checksum-type (non-negative-integer/unset unset-field) "The type of the AP-REQ checksum.") (canonicalize? (boolean/unset unset-field) "Should principals in initial ticket requests be canonicalized?") (ccache-type (non-negative-integer/unset unset-field) "The format of the credential cache type.") (clockskew (non-negative-integer/unset unset-field) "Maximum allowable clock skew in seconds (default 300).") (default-ccache-name (file-name unset-field) "The name of the default credential cache.") (default-client-keytab-name (file-name unset-field) "The name of the default keytab for client credentials.") (default-keytab-name (file-name unset-field) "The name of the default keytab file.") (default-realm (string/unset unset-field) "The realm to be accessed if not explicitly specified by clients.") (default-tgs-enctypes (free-form-fields '()) "Session key encryption types when making TGS-REQ requests.") (default-tkt-enctypes (free-form-fields '()) "Session key encryption types when making AS-REQ requests.") (dns-canonicalize-hostname? (boolean/unset unset-field) "Whether name lookups will be used to canonicalize host names for use in service principal names.") (dns-lookup-kdc? (boolean/unset unset-field) "Should DNS SRV records should be used to locate the KDCs and other servers not appearing in the realm specification") (err-fmt (string/unset unset-field) "Custom error message formatting. If not #f error messages will be formatted by substituting a normal error message for %M and an error code for %C in the value.") (forwardable? (boolean/unset unset-field) "Should initial tickets be forwardable by default?") (ignore-acceptor-hostname? (boolean/unset unset-field) "When accepting GSSAPI or krb5 security contexts for host-based service principals, ignore any hostname passed by the calling application, and allow clients to authenticate to any service principal in the keytab matching the service name and realm name.") (k5login-authoritative? (boolean/unset unset-field) "If this flag is true, principals must be listed in a local user's k5login file to be granted login access, if a ~/.k5login file exists.") (k5login-directory (string/unset unset-field) "If not #f, the library will look for a local user's @file{k5login} file within the named directory (instead of the user's home directory), with a file name corresponding to the local user name.") (kcm-mach-service (string/unset unset-field) "The name of the bootstrap service used to contact the KCM daemon for the KCM credential cache type.") (kcm-socket (file-name unset-field) "Path to the Unix domain socket used to access the KCM daemon for the KCM credential cache type.") (kdc-default-options (non-negative-integer/unset unset-field) "Default KDC options (logored for multiple values) when requesting initial tickets.") (kdc-timesync (non-negative-integer/unset unset-field) "Attempt to compensate for clock skew between the KDC and client.") (kdc-req-checksum-type (non-negative-integer/unset unset-field) "The type of checksum to use for the KDC requests. Relevant only for DES keys") (noaddresses? (boolean/unset unset-field) "If true, initial ticket requests will not be made with address restrictions. This enables their use across NATs.") (permitted-enctypes (space-separated-string-list/unset unset-field) "All encryption types that are permitted for use in session key encryption.") (plugin-base-dir (file-name unset-field) "The directory where krb5 plugins are located.") (preferred-preauth-types (comma-separated-integer-list/unset unset-field) "The preferred pre-authentication types which the client will attempt before others.") (proxiable? (boolean/unset unset-field) "Should initial tickets be proxiable by default?") (rdns? (boolean/unset unset-field) "Should reverse DNS lookup be used in addition to forward name lookup to canonicalize host names for use in service principal names.") (realm-try-domains (integer/unset unset-field) "Should a host's domain components should be used to determine the Kerberos realm of the host.") (renew-lifetime (non-negative-integer/unset unset-field) "The default renewable lifetime for initial ticket requests.") (safe-checksum-type (non-negative-integer/unset unset-field) "The type of checksum to use for the KRB-SAFE requests.") (ticket-lifetime (non-negative-integer/unset unset-field) "The default lifetime for initial ticket requests.") (udp-preference-limit (non-negative-integer/unset unset-field) "When sending messages to the KDC, the library will try using TCP before UDP if the size of the message greater than this limit.") (verify-ap-rereq-nofail? (boolean/unset unset-field) "If true, then attempts to verify initial credentials will fail if the client machine does not have a keytab.") (realms (realm-list '()) "The list of realms which clients may access.")) (define (krb5-configuration-file config) "Create a Kerberos 5 configuration file based on CONFIG" (mixed-text-file "krb5.conf" "[libdefaults]\n\n" (with-output-to-string (lambda () (serialize-configuration config krb5-configuration-fields))))) (define (krb5-etc-service config) (list `("krb5.conf" ,(krb5-configuration-file config)))) (define krb5-service-type (service-type (name 'krb5) (extensions (list (service-extension etc-service-type krb5-etc-service))) (description "Programs using a Kerberos client library normally expect a configuration file in @file{/etc/krb5.conf}. This service generates such a file. It does not cause any daemon to be started."))) (define-record-type* 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))) (description "The @code{pam-krb5} service allows for login authentication and password management via Kerberos. You will need this service if you want PAM-enabled applications to authenticate users using Kerberos.")))