diff options
| -rw-r--r-- | doc/guix.texi | 38 | ||||
| -rw-r--r-- | gnu/local.mk | 1 | ||||
| -rw-r--r-- | gnu/services/kerberos.scm | 67 |
3 files changed, 105 insertions, 1 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index d99f409061..89a7a5867e 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -221,6 +221,7 @@ Services * Desktop Services:: D-Bus and desktop services. * Database Services:: SQL databases. * Mail Services:: IMAP, POP3, SMTP, and all that. +* Kerberos Services:: Kerberos services. * Web Services:: Web servers. * Network File System:: NFS related services. * Miscellaneous Services:: Other services. @@ -7701,6 +7702,7 @@ declaration. * Desktop Services:: D-Bus and desktop services. * Database Services:: SQL databases. * Mail Services:: IMAP, POP3, SMTP, and all that. +* Kerberos Services:: Kerberos services. * Web Services:: Web servers. * Network File System:: NFS related services. * Miscellaneous Services:: Other services. @@ -10405,6 +10407,40 @@ could instantiate a dovecot service like this: (string ""))) @end example + +@node Kerberos Services +@subsubsection Kerberos Services +@cindex Kerberos + +The @code{(gnu services Kerberos)} module provides services relating to +the authentication protocol @dfn{Kerberos}. + +@subsubheading PAM krb5 Service +@cindex pam-krb5 + +The 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. + +@defvr {Scheme Variable} pam-krb5-service-type +A service type for the Kerberos 5 PAM module. +@end defvr + +@deftp {Data Type} pam-krb5-configuration +Data type representing the configuration of the Kerberos 5 PAM module +This type has the following parameters: +@table @asis +@item @code{pam-krb5} (default: @code{pam-krb5}) +The pam-krb5 package to use. + +@item @code{minimum-uid} (default: @code{1000}) +The smallest user ID for which Kerberos authentications should be attempted. +Local accounts with lower values will silently fail to authenticate. +@end table +@end deftp + + @node Web Services @subsubsection Web Services @@ -10538,7 +10574,7 @@ The @dfn{global security system} (GSS) daemon provides strong security for RPC based protocols. Before exchanging RPC requests an RPC client must establish a security context. Typically this is done using the Kerberos command @command{kinit} -or automatically at login time using PAM services. +or automatically at login time using PAM services (@pxref{Kerberos Services}). @defvr {Scheme Variable} gss-service-type A service type for the Global Security System (GSS) daemon. diff --git a/gnu/local.mk b/gnu/local.mk index 73c4dc2cf5..396281357a 100644 --- a/gnu/local.mk +++ b/gnu/local.mk @@ -400,6 +400,7 @@ GNU_SYSTEM_MODULES = \ %D%/services/dbus.scm \ %D%/services/desktop.scm \ %D%/services/dict.scm \ + %D%/services/kerberos.scm \ %D%/services/lirc.scm \ %D%/services/mail.scm \ %D%/services/mcron.scm \ diff --git a/gnu/services/kerberos.scm b/gnu/services/kerberos.scm new file mode 100644 index 0000000000..144c71bba0 --- /dev/null +++ b/gnu/services/kerberos.scm @@ -0,0 +1,67 @@ +;;; 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))))) |