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Diffstat (limited to 'gnu/services/pam-mount.scm')
| -rw-r--r-- | gnu/services/pam-mount.scm | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/gnu/services/pam-mount.scm b/gnu/services/pam-mount.scm new file mode 100644 index 0000000000..98611462c2 --- /dev/null +++ b/gnu/services/pam-mount.scm @@ -0,0 +1,111 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2019 Guillaume Le Vaillant <glv@posteo.net> +;;; +;;; 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 pam-mount) + #:use-module (gnu packages admin) + #:use-module (gnu services) + #:use-module (gnu services configuration) + #:use-module (gnu system pam) + #:use-module (guix gexp) + #:use-module (guix records) + #:export (pam-mount-configuration + pam-mount-configuration? + pam-mount-service-type)) + +(define %pam-mount-default-configuration + `((debug (@ (enable "0"))) + (mntoptions (@ (allow ,(string-join + '("nosuid" "nodev" "loop" + "encryption" "fsck" "nonempty" + "allow_root" "allow_other") + ",")))) + (mntoptions (@ (require "nosuid,nodev"))) + (logout (@ (wait "0") + (hup "0") + (term "no") + (kill "no"))) + (mkmountpoint (@ (enable "1") + (remove "true"))))) + +(define (make-pam-mount-configuration-file config) + (computed-file + "pam_mount.conf.xml" + #~(begin + (use-modules (sxml simple)) + (call-with-output-file #$output + (lambda (port) + (sxml->xml + '(*TOP* + (*PI* xml "version='1.0' encoding='utf-8'") + (pam_mount + #$@(pam-mount-configuration-rules config) + (pmvarrun + #$(file-append pam-mount + "/sbin/pmvarrun -u '%(USER)' -o '%(OPERATION)'")) + (cryptmount + #$(file-append pam-mount + (string-append + "/sbin/mount.crypt" + " '%(if %(CIPHER),-ocipher=%(CIPHER))'" + " '%(if %(FSKEYCIPHER)," + "-ofsk_cipher=%(FSKEYCIPHER))'" + " '%(if %(FSKEYHASH),-ofsk_hash=%(FSKEYHASH))'" + " '%(if %(FSKEYPATH),-okeyfile=%(FSKEYPATH))'" + " '%(if %(OPTIONS),-o%(OPTIONS))'" + " '%(VOLUME)' '%(MNTPT)'"))) + (cryptumount + #$(file-append pam-mount "/sbin/umount.crypt '%(MNTPT)'")))) + port)))))) + +(define-record-type* <pam-mount-configuration> + pam-mount-configuration + make-pam-mount-configuration + pam-mount-configuration? + (rules pam-mount-configuration-rules + (default %pam-mount-default-configuration))) + +(define (pam-mount-etc-service config) + `(("security/pam_mount.conf.xml" + ,(make-pam-mount-configuration-file config)))) + +(define (pam-mount-pam-service config) + (define optional-pam-mount + (pam-entry + (control "optional") + (module #~(string-append #$pam-mount "/lib/security/pam_mount.so")))) + (list (lambda (pam) + (if (member (pam-service-name pam) + '("login" "su" "slim" "gdm-password")) + (pam-service + (inherit pam) + (auth (append (pam-service-auth pam) + (list optional-pam-mount))) + (session (append (pam-service-session pam) + (list optional-pam-mount)))) + pam)))) + +(define pam-mount-service-type + (service-type + (name 'pam-mount) + (extensions (list (service-extension etc-service-type + pam-mount-etc-service) + (service-extension pam-root-service-type + pam-mount-pam-service))) + (default-value (pam-mount-configuration)) + (description "Activate PAM-Mount support. It allows mounting volumes for +specific users when they log in."))) |