927097effd
* gnu/services/networking.scm (tor-service): New procedure. * doc/guix.texi (Networking Services): Document it. * build-aux/hydra/demo-os.scm: Use it. Add TOR and TORSOCKS to 'packages'.
123 lines
5.1 KiB
Scheme
123 lines
5.1 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu services networking)
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#:use-module (gnu services)
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#:use-module (gnu system shadow)
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#:use-module (gnu packages admin)
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#:use-module (gnu packages linux)
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#:use-module (gnu packages tor)
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#:use-module (guix gexp)
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#:use-module (guix monads)
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#:export (static-networking-service
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tor-service))
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;;; Commentary:
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;;;
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;;; Networking services.
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;;;
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;;; Code:
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(define* (static-networking-service interface ip
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#:key
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gateway
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(provision '(networking))
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(name-servers '())
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(inetutils inetutils)
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(net-tools net-tools))
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"Return a service that starts @var{interface} with address @var{ip}. If
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@var{gateway} is true, it must be a string specifying the default network
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gateway."
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;; TODO: Eventually we should do this using Guile's networking procedures,
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;; like 'configure-qemu-networking' does, but the patch that does this is
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;; not yet in stock Guile.
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(with-monad %store-monad
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(return
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(service
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(documentation
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(string-append "Set up networking on the '" interface
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"' interface using a static IP address."))
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(provision provision)
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(start #~(lambda _
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;; Return #t if successfully started.
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(and (zero? (system* (string-append #$inetutils
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"/bin/ifconfig")
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"-i" #$interface "-A" #$ip
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"-i" #$interface "--up"))
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#$(if gateway
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#~(zero? (system* (string-append #$net-tools
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"/sbin/route")
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"add" "-net" "default"
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"gw" #$gateway))
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#t)
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#$(if (pair? name-servers)
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#~(call-with-output-file "/etc/resolv.conf"
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(lambda (port)
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(display
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"# Generated by 'static-networking-service'.\n"
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port)
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(for-each (lambda (server)
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(format port "nameserver ~a~%"
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server))
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'#$name-servers)))
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#t))))
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(stop #~(lambda _
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;; Return #f is successfully stopped.
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(not (and (system* (string-append #$inetutils "/bin/ifconfig")
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#$interface "down")
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#$(if gateway
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#~(system* (string-append #$net-tools
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"/sbin/route")
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"del" "-net" "default")
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#t)))))
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(respawn? #f)))))
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(define* (tor-service #:key (tor tor))
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"Return a service to run the @uref{https://torproject.org,Tor} daemon.
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The daemon runs with the default settings (in particular the default exit
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policy) as the @code{tor} unprivileged user."
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(mlet %store-monad ((torrc (text-file "torrc" "User tor\n")))
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(return
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(service
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(provision '(tor))
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;; Tor needs at least one network interface to be up, hence the
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;; dependency on 'loopback'.
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(requirement '(user-processes loopback))
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(start #~(make-forkexec-constructor
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(list (string-append #$tor "/bin/tor") "-f" #$torrc)))
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(stop #~(make-kill-destructor))
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(user-groups (list (user-group
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(name "tor"))))
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(user-accounts (list (user-account
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(name "tor")
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(group "tor")
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(system? #t)
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(comment "Tor daemon user")
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(home-directory "/var/empty")
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(shell
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"/run/current-system/profile/sbin/nologin"))))
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(documentation "Run the Tor anonymous network overlay.")))))
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;;; networking.scm ends here
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