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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Simon Streit <simon@netpanic.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 samba)
#:use-module (gnu packages)
#:use-module (gnu packages base)
#:use-module (gnu packages admin)
#:use-module (gnu packages samba)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module (gnu services base)
#:use-module (gnu system shadow)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix modules)
#:use-module (guix records)
#:use-module (ice-9 format)
#:use-module (ice-9 match)
#:use-module (ice-9 textual-ports)
#:use-module (srfi srfi-1)
#:export (samba-service-type
samba-configuration
wsdd-service-type
wsdd-configuration))
(define-record-type* <samba-configuration>
samba-configuration
make-samba-configuration
samba-configuration?
(package samba-configuration-package
(default samba))
(config-file samba-configuration-config-file
(default #f))
(enable-samba? samba-configuration-enable-samba?
(default #f))
(enable-smbd? samba-configuration-enable-smbd?
(default #t))
(enable-nmbd? samba-configuration-enable-nmbd?
(default #t))
(enable-winbindd? samba-configuration-enable-winbindd?
(default #t)))
(define (samba-activation config)
(let ((package (samba-configuration-package config))
(config-file (samba-configuration-config-file config)))
(with-imported-modules '((guix build utils))
(let ((lib-dir "/var/lib/samba")
(log-dir "/var/log/samba")
(run-dir "/var/run/samba")
(lock-dir "/var/lock/samba")
(cache-dir "/var/cache/samba")
(etc-dir "/etc/samba")
(smb.conf "/etc/samba/smb.conf"))
#~(begin
(use-modules (guix build utils))
(mkdir-p #$etc-dir)
(mkdir-p #$lib-dir)
(mkdir-p/perms (string-append #$lib-dir "/private")
(getpwnam "root") #o700)
(mkdir-p #$log-dir)
(mkdir-p #$run-dir)
(mkdir-p #$lock-dir)
(mkdir-p #$cache-dir)
(copy-file #$config-file #$smb.conf)
(invoke #$(file-append package "/bin/testparm")
"--suppress-prompt" #$smb.conf))))))
(define (samba-samba-shepherd-service config)
(let ((package (samba-configuration-package config))
(config-file (samba-configuration-config-file config)))
(list (shepherd-service
(documentation "Run Samba")
(provision '(samba-samba))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append package "/sbin/samba")
(string-append "--configfile=" #$config-file)
"--foreground"
"--no-process-group")))
(stop #~(make-kill-destructor))))))
(define (samba-nmbd-shepherd-service config)
(let ((package (samba-configuration-package config))
(config-file (samba-configuration-config-file config)))
(list (shepherd-service
(documentation "Run NMBD")
(provision '(samba-nmbd))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append package "/sbin/nmbd")
(string-append "--configfile=" #$config-file)
"--foreground"
"--no-process-group")))
(stop #~(make-kill-destructor))))))
(define (samba-smbd-shepherd-service config)
(let ((package (samba-configuration-package config))
(config-file (samba-configuration-config-file config)))
(list (shepherd-service
(documentation "Run SMBD")
(provision '(samba-smbd))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append package "/sbin/smbd")
(string-append "--configfile=" #$config-file)
"--foreground"
"--no-process-group")))
(stop #~(make-kill-destructor))))))
(define (samba-winbindd-shepherd-service config)
(let ((package (samba-configuration-package config))
(config-file (samba-configuration-config-file config)))
(list (shepherd-service
(documentation "Run Winnbindd for Name Service Switch")
(provision '(samba-winbindd))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append package "/sbin/winbindd")
(string-append "--configfile=" #$config-file)
"--foreground"
"--no-process-group")))
(stop #~(make-kill-destructor))))))
(define (samba-shepherd-services config)
(append (if (samba-configuration-enable-samba? config)
(samba-samba-shepherd-service config)
'())
(if (samba-configuration-enable-nmbd? config)
(samba-nmbd-shepherd-service config)
'())
(if (samba-configuration-enable-smbd? config)
(samba-smbd-shepherd-service config)
'())
(if (samba-configuration-enable-winbindd? config)
(samba-winbindd-shepherd-service config)
'())))
(define samba-service-type
(service-type
(name 'samba)
(description "Run @uref{https://www.samba.org/, Samba}, a network file and
print service for all clients using the SMB/CIFS protocol. Samba is an
important component to seamlessly integrate Linux/Unix Servers and Desktops
into Active Directory environments. It can function both as a domain
controller or as a regular domain member.")
(extensions
(list (service-extension shepherd-root-service-type
samba-shepherd-services)
(service-extension activation-service-type
samba-activation)
(service-extension profile-service-type
(compose list samba-configuration-package))))
(default-value (samba-configuration))))
;;;
;;; WSDD
;;;
(define-record-type* <wsdd-configuration>
wsdd-configuration
make-wsdd-configuration
wsdd-configuration?
(package wsdd-configuration-package
(default wsdd))
(ipv4only? wsdd-configuration-ipv4only?
(default #f))
(ipv6only? wsdd-configuration-ipv6only?
(default #f))
(chroot wsdd-configuration-chroot
(default #f))
(hop-limit wsdd-configuration-hop-limit
(default 1))
(interfaces wsdd-configuration-interfaces
(default '()))
(uuid-device wsdd-configuration-uuid-device
(default #f))
(domain wsdd-configuration-domain
(default #f))
(host-name wsdd-configuration-host-name
(default #f))
(preserve-case? wsdd-configuration-preserve-case?
(default #f))
(workgroup wsdd-configuration-workgroup
(default "WORKGROUP")))
(define wsdd-accounts
(list
(user-group (name "wsdd"))
(user-account (name "wsdd")
(group "wsdd")
(comment "Web Service Discovery user")
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define (wsdd-shepherd-service config)
(match-record config <wsdd-configuration>
(package ipv4only? ipv6only? chroot hop-limit interfaces uuid-device
domain host-name preserve-case? workgroup)
(list (shepherd-service
(documentation "The Web Service Discovery daemon enables (Samba) hosts,
like your local NAS device, to be found by Web Service Discovery Clients
like Windows.")
(provision '(wsdd))
(requirement '(networking))
(start #~(make-forkexec-constructor
(list #$(file-append package "/bin/wsdd")
#$@(if ipv4only?
#~("--ipv4only")
'())
#$@(if ipv6only?
#~("--ipv6only")
'())
#$@(if chroot
#~("--chroot" #$chroot)
'())
#$@(if hop-limit
#~("--hoplimit" #$(number->string hop-limit))
'())
#$@(map (lambda (interfaces)
(string-append "--interface=" interfaces))
interfaces)
#$@(if uuid-device
#~("--uuid" #$uuid-device)
'())
#$@(if domain
#~("--domain" #$domain)
'())
#$@(if host-name
#~("--hostname" #$host-name)
'())
#$@(if preserve-case?
#~("--preserve-case")
'())
#$@(if workgroup
#~("--workgroup" #$workgroup)
'()))
#:user "wsdd"
#:group "wsdd"
#:log-file "/var/log/wsdd.log"))
(stop #~(make-kill-destructor))))))
(define wsdd-service-type
(service-type
(name 'wsdd)
(description "Web Service Discovery Daemon")
(extensions
(list (service-extension shepherd-root-service-type
wsdd-shepherd-service)
(service-extension account-service-type
(const wsdd-accounts))
(service-extension profile-service-type
(compose list wsdd-configuration-package))))
(default-value (wsdd-configuration))))
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