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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@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 networking)
#:use-module (gnu services)
#:use-module (gnu packages admin)
#:use-module (gnu packages linux)
#:use-module (guix gexp)
#:use-module (guix monads)
#:export (static-networking-service))
;;; Commentary:
;;;
;;; Networking services.
;;;
;;; Code:
(define* (static-networking-service interface ip
#:key
gateway
(name-servers '())
(inetutils inetutils)
(net-tools net-tools))
"Return a service that starts @var{interface} with address @var{ip}. If
@var{gateway} is true, it must be a string specifying the default network
gateway."
;; TODO: Eventually we should do this using Guile's networking procedures,
;; like 'configure-qemu-networking' does, but the patch that does this is
;; not yet in stock Guile.
(with-monad %store-monad
(return
(service
(documentation
(string-append "Set up networking on the '" interface
"' interface using a static IP address."))
(provision '(networking))
(start #~(lambda _
;; Return #t if successfully started.
(and (zero? (system* (string-append #$inetutils
"/bin/ifconfig")
#$interface #$ip "up"))
#$(if gateway
#~(zero? (system* (string-append #$net-tools
"/sbin/route")
"add" "-net" "default"
"gw" #$gateway))
#t)
#$(if (pair? name-servers)
#~(call-with-output-file "/etc/resolv.conf"
(lambda (port)
(display
"# Generated by 'static-networking-service'.\n"
port)
(for-each (lambda (server)
(format port "nameserver ~a~%"
server))
'#$name-servers)))
#t))))
(stop #~(lambda _
;; Return #f is successfully stopped.
(not (and (system* (string-append #$inetutils "/bin/ifconfig")
#$interface "down")
(system* (string-append #$net-tools "/sbin/route")
"del" "-net" "default")))))
(respawn? #f)))))
;;; networking.scm ends here
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