aboutsummaryrefslogtreecommitdiff
path: root/gnu/services/networking.scm
blob: af2a60936b0bf1171f1ac2f5133ccb4e11f71d17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 services shepherd)
  #:use-module (gnu services dbus)
  #:use-module (gnu system shadow)
  #:use-module (gnu system pam)
  #:use-module (gnu packages admin)
  #:use-module (gnu packages connman)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages tor)
  #:use-module (gnu packages messaging)
  #:use-module (gnu packages ntp)
  #:use-module (gnu packages wicd)
  #:use-module (gnu packages gnome)
  #:use-module (guix gexp)
  #:use-module (guix records)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-9)
  #:use-module (srfi srfi-26)
  #:use-module (ice-9 match)
  #:export (%facebook-host-aliases
            static-networking-service
            dhcp-client-service
            %ntp-servers
            ntp-service
            tor-hidden-service
            tor-service
            bitlbee-service
            wicd-service
            network-manager-service
            connman-service))

;;; Commentary:
;;;
;;; Networking services.
;;;
;;; Code:

(define %facebook-host-aliases
  ;; This is the list of known Facebook hosts to be added to /etc/hosts if you
  ;; are to block it.
  "\
# Block Facebook IPv4.
127.0.0.1   www.facebook.com
127.0.0.1   facebook.com
127.0.0.1   login.facebook.com
127.0.0.1   www.login.facebook.com
127.0.0.1   fbcdn.net
127.0.0.1   www.fbcdn.net
127.0.0.1   fbcdn.com
127.0.0.1   www.fbcdn.com
127.0.0.1   static.ak.fbcdn.net
127.0.0.1   static.ak.connect.facebook.com
127.0.0.1   connect.facebook.net
127.0.0.1   www.connect.facebook.net
127.0.0.1   apps.facebook.com

# Block Facebook IPv6.
fe80::1%lo0 facebook.com
fe80::1%lo0 login.facebook.com
fe80::1%lo0 www.login.facebook.com
fe80::1%lo0 fbcdn.net
fe80::1%lo0 www.fbcdn.net
fe80::1%lo0 fbcdn.com
fe80::1%lo0 www.fbcdn.com
fe80::1%lo0 static.ak.fbcdn.net
fe80::1%lo0 static.ak.connect.facebook.com
fe80::1%lo0 connect.facebook.net
fe80::1%lo0 www.connect.facebook.net
fe80::1%lo0 apps.facebook.com\n")


(define-record-type* <static-networking>
  static-networking make-static-networking
  static-networking?
  (interface static-networking-interface)
  (ip static-networking-ip)
  (gateway static-networking-gateway)
  (provision static-networking-provision)
  (name-servers static-networking-name-servers)
  (net-tools static-networking-net-tools))

(define static-networking-service-type
  (shepherd-service-type
   'static-networking
   (match-lambda
     (($ <static-networking> interface ip gateway provision
                             name-servers net-tools)
      (let ((loopback? (memq 'loopback provision)))

        ;; TODO: Eventually replace 'route' with bindings for the appropriate
        ;; ioctls.
        (shepherd-service

         ;; Unless we're providing the loopback interface, wait for udev to be up
         ;; and running so that INTERFACE is actually usable.
         (requirement (if loopback? '() '(udev)))

         (documentation
          "Bring up the networking interface using a static IP address.")
         (provision provision)
         (start #~(lambda _
                    ;; Return #t if successfully started.
                    (let* ((addr     (inet-pton AF_INET #$ip))
                           (sockaddr (make-socket-address AF_INET addr 0)))
                      (configure-network-interface #$interface sockaddr
                                                   (logior IFF_UP
                                                           #$(if loopback?
                                                                 #~IFF_LOOPBACK
                                                                 0))))
                    #$(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.
                   (let ((sock (socket AF_INET SOCK_STREAM 0)))
                     (set-network-interface-flags sock #$interface 0)
                     (close-port sock))
                   (not #$(if gateway
                              #~(system* (string-append #$net-tools
                                                        "/sbin/route")
                                         "del" "-net" "default")
                              #t))))
         (respawn? #f)))))))

(define* (static-networking-service interface ip
                                    #:key
                                    gateway
                                    (provision '(networking))
                                    (name-servers '())
                                    (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."
  (service static-networking-service-type
           (static-networking (interface interface) (ip ip)
                              (gateway gateway)
                              (provision provision)
                              (name-servers name-servers)
                              (net-tools net-tools))))

(define dhcp-client-service-type
  (shepherd-service-type
   'dhcp-client
   (lambda (dhcp)
     (define dhclient
       #~(string-append #$dhcp "/sbin/dhclient"))

     (define pid-file
       "/var/run/dhclient.pid")

     (shepherd-service
      (documentation "Set up networking via DHCP.")
      (requirement '(user-processes udev))

      ;; XXX: Running with '-nw' ("no wait") avoids blocking for a minute when
      ;; networking is unavailable, but also means that the interface is not up
      ;; yet when 'start' completes.  To wait for the interface to be ready, one
      ;; should instead monitor udev events.
      (provision '(networking))

      (start #~(lambda _
                 ;; When invoked without any arguments, 'dhclient' discovers all
                 ;; non-loopback interfaces *that are up*.  However, the relevant
                 ;; interfaces are typically down at this point.  Thus we perform
                 ;; our own interface discovery here.
                 (define valid?
                   (negate loopback-network-interface?))
                 (define ifaces
                   (filter valid? (all-network-interface-names)))

                 ;; XXX: Make sure the interfaces are up so that 'dhclient' can
                 ;; actually send/receive over them.
                 (for-each set-network-interface-up ifaces)

                 (false-if-exception (delete-file #$pid-file))
                 (let ((pid (fork+exec-command
                             (cons* #$dhclient "-nw"
                                    "-pf" #$pid-file ifaces))))
                   (and (zero? (cdr (waitpid pid)))
                        (let loop ()
                          (catch 'system-error
                            (lambda ()
                              (call-with-input-file #$pid-file read))
                            (lambda args
                              ;; 'dhclient' returned before PID-FILE was created,
                              ;; so try again.
                              (let ((errno (system-error-errno args)))
                                (if (= ENOENT errno)
                                    (begin
                                      (sleep 1)
                                      (loop))
                                    (apply throw args))))))))))
      (stop #~(make-kill-destructor))))))

(define* (dhcp-client-service #:key (dhcp isc-dhcp))
  "Return a service that runs @var{dhcp}, a Dynamic Host Configuration
Protocol (DHCP) client, on all the non-loopback network interfaces."
  (service dhcp-client-service-type dhcp))

(define %ntp-servers
  ;; Default set of NTP servers.
  '("0.pool.ntp.org"
    "1.pool.ntp.org"
    "2.pool.ntp.org"))


;;;
;;; NTP.
;;;

;; TODO: Export.
(define-record-type* <ntp-configuration>
  ntp-configuration make-ntp-configuration
  ntp-configuration?
  (ntp      ntp-configuration-ntp
            (default ntp))
  (servers  ntp-configuration-servers))

(define ntp-shepherd-service
  (match-lambda
    (($ <ntp-configuration> ntp servers)
     (let ()
       ;; TODO: Add authentication support.
       (define config
         (string-append "driftfile /var/run/ntp.drift\n"
                        (string-join (map (cut string-append "server " <>)
                                          servers)
                                     "\n")
                        "
# Disable status queries as a workaround for CVE-2013-5211:
# <http://support.ntp.org/bin/view/Main/SecurityNotice#DRDoS_Amplification_Attack_using>.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

# Yet, allow use of the local 'ntpq'.
restrict 127.0.0.1
restrict -6 ::1\n"))

       (define ntpd.conf
         (plain-file "ntpd.conf" config))

       (list (shepherd-service
              (provision '(ntpd))
              (documentation "Run the Network Time Protocol (NTP) daemon.")
              (requirement '(user-processes networking))
              (start #~(make-forkexec-constructor
                        (list (string-append #$ntp "/bin/ntpd") "-n"
                              "-c" #$ntpd.conf "-u" "ntpd")))
              (stop #~(make-kill-destructor))))))))

(define %ntp-accounts
  (list (user-account
         (name "ntpd")
         (group "nogroup")
         (system? #t)
         (comment "NTP daemon user")
         (home-directory "/var/empty")
         (shell #~(string-append #$shadow "/sbin/nologin")))))

(define ntp-service-type
  (service-type (name 'ntp)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          ntp-shepherd-service)
                       (service-extension account-service-type
                                          (const %ntp-accounts))))))

(define* (ntp-service #:key (ntp ntp)
                      (servers %ntp-servers))
  "Return a service that runs the daemon from @var{ntp}, the
@uref{http://www.ntp.org, Network Time Protocol package}.  The daemon will
keep the system clock synchronized with that of @var{servers}."
  (service ntp-service-type
           (ntp-configuration (ntp ntp) (servers servers))))


;;;
;;; Tor.
;;;

(define-record-type* <tor-configuration>
  tor-configuration make-tor-configuration
  tor-configuration?
  (tor              tor-configuration-tor
                    (default tor))
  (config-file      tor-configuration-config-file)
  (hidden-services  tor-configuration-hidden-services
                    (default '())))

(define %tor-accounts
  ;; User account and groups for Tor.
  (list (user-group (name "tor") (system? #t))
        (user-account
         (name "tor")
         (group "tor")
         (system? #t)
         (comment "Tor daemon user")
         (home-directory "/var/empty")
         (shell #~(string-append #$shadow "/sbin/nologin")))))

(define-record-type <hidden-service>
  (hidden-service name mapping)
  hidden-service?
  (name    hidden-service-name)                   ;string
  (mapping hidden-service-mapping))               ;list of port/address tuples

(define (tor-configuration->torrc config)
  "Return a 'torrc' file for CONFIG."
  (match config
    (($ <tor-configuration> tor config-file services)
     (computed-file
      "torrc"
      #~(begin
          (use-modules (guix build utils)
                       (ice-9 match))

          (call-with-output-file #$output
            (lambda (port)
              (display "\
# The beginning was automatically added.
User tor
DataDirectory /var/lib/tor
Log notice syslog\n" port)

              (for-each (match-lambda
                          ((service (ports hosts) ...)
                           (format port "\
HiddenServiceDir /var/lib/tor/hidden-services/~a~%"
                                   service)
                           (for-each (lambda (tcp-port host)
                                       (format port "\
HiddenServicePort ~a ~a~%"
                                               tcp-port host))
                                     ports hosts)))
                        '#$(map (match-lambda
                                  (($ <hidden-service> name mapping)
                                   (cons name mapping)))
                                services))

              ;; Append the user's config file.
              (call-with-input-file #$config-file
                (lambda (input)
                  (dump-port input port)))
              #t)))
      #:modules '((guix build utils))))))

(define (tor-shepherd-service config)
  "Return a <shepherd-service> running TOR."
  (match config
    (($ <tor-configuration> tor)
     (let ((torrc (tor-configuration->torrc config)))
       (list (shepherd-service
              (provision '(tor))

              ;; Tor needs at least one network interface to be up, hence the
              ;; dependency on 'loopback'.
              (requirement '(user-processes loopback syslogd))

              (start #~(make-forkexec-constructor
                        (list (string-append #$tor "/bin/tor") "-f" #$torrc)))
              (stop #~(make-kill-destructor))
              (documentation "Run the Tor anonymous network overlay.")))))))

(define (tor-hidden-service-activation config)
  "Return the activation gexp for SERVICES, a list of hidden services."
  #~(begin
      (use-modules (guix build utils))

      (define %user
        (getpw "tor"))

      (define (initialize service)
        (let ((directory (string-append "/var/lib/tor/hidden-services/"
                                        service)))
          (mkdir-p directory)
          (chown directory (passwd:uid %user) (passwd:gid %user))

          ;; The daemon bails out if we give wider permissions.
          (chmod directory #o700)))

      (mkdir-p "/var/lib/tor")
      (chown "/var/lib/tor" (passwd:uid %user) (passwd:gid %user))
      (chmod "/var/lib/tor" #o700)

      (for-each initialize
                '#$(map hidden-service-name
                        (tor-configuration-hidden-services config)))))

(define tor-service-type
  (service-type (name 'tor)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          tor-shepherd-service)
                       (service-extension account-service-type
                                          (const %tor-accounts))
                       (service-extension activation-service-type
                                          tor-hidden-service-activation)))

                ;; This can be extended with hidden services.
                (compose concatenate)
                (extend (lambda (config services)
                          (tor-configuration
                           (inherit config)
                           (hidden-services
                            (append (tor-configuration-hidden-services config)
                                    services)))))))

(define* (tor-service #:optional
                      (config-file (plain-file "empty" ""))
                      #:key (tor tor))
  "Return a service to run the @uref{https://torproject.org, Tor} anonymous
networking daemon.

The daemon runs as the @code{tor} unprivileged user.  It is passed
@var{config-file}, a file-like object, with an additional @code{User tor} line
and lines for hidden services added via @code{tor-hidden-service}.  Run
@command{man tor} for information about the configuration file."
  (service tor-service-type
           (tor-configuration (tor tor)
                              (config-file config-file))))

(define tor-hidden-service-type
  ;; A type that extends Tor with hidden services.
  (service-type (name 'tor-hidden-service)
                (extensions
                 (list (service-extension tor-service-type list)))))

(define (tor-hidden-service name mapping)
  "Define a new Tor @dfn{hidden service} called @var{name} and implementing
@var{mapping}.  @var{mapping} is a list of port/host tuples, such as:

@example
 '((22 \"127.0.0.1:22\")
   (80 \"127.0.0.1:8080\"))
@end example

In this example, port 22 of the hidden service is mapped to local port 22, and
port 80 is mapped to local port 8080.

This creates a @file{/var/lib/tor/hidden-services/@var{name}} directory, where
the @file{hostname} file contains the @code{.onion} host name for the hidden
service.

See @uref{https://www.torproject.org/docs/tor-hidden-service.html.en, the Tor
project's documentation} for more information."
  (service tor-hidden-service-type
           (hidden-service name mapping)))


;;;
;;; BitlBee.
;;;

(define-record-type* <bitlbee-configuration>
  bitlbee-configuration make-bitlbee-configuration
  bitlbee-configuration?
  (bitlbee bitlbee-configuration-bitlbee
           (default bitlbee))
  (interface bitlbee-configuration-interface)
  (port bitlbee-configuration-port)
  (extra-settings bitlbee-configuration-extra-settings))

(define bitlbee-shepherd-service
  (match-lambda
    (($ <bitlbee-configuration> bitlbee interface port extra-settings)
     (let ((conf (plain-file "bitlbee.conf"
                             (string-append "
  [settings]
  User = bitlbee
  ConfigDir = /var/lib/bitlbee
  DaemonInterface = " interface "
  DaemonPort = " (number->string port) "
" extra-settings))))

       (list (shepherd-service
              (provision '(bitlbee))
              (requirement '(user-processes loopback))
              (start #~(make-forkexec-constructor
                        (list (string-append #$bitlbee "/sbin/bitlbee")
                              "-n" "-F" "-u" "bitlbee" "-c" #$conf)))
              (stop  #~(make-kill-destructor))))))))

(define %bitlbee-accounts
  ;; User group and account to run BitlBee.
  (list (user-group (name "bitlbee") (system? #t))
        (user-account
         (name "bitlbee")
         (group "bitlbee")
         (system? #t)
         (comment "BitlBee daemon user")
         (home-directory "/var/empty")
         (shell #~(string-append #$shadow "/sbin/nologin")))))

(define %bitlbee-activation
  ;; Activation gexp for BitlBee.
  #~(begin
      (use-modules (guix build utils))

      ;; This directory is used to store OTR data.
      (mkdir-p "/var/lib/bitlbee")
      (let ((user (getpwnam "bitlbee")))
        (chown "/var/lib/bitlbee"
               (passwd:uid user) (passwd:gid user)))))

(define bitlbee-service-type
  (service-type (name 'bitlbee)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          bitlbee-shepherd-service)
                       (service-extension account-service-type
                                          (const %bitlbee-accounts))
                       (service-extension activation-service-type
                                          (const %bitlbee-activation))))))

(define* (bitlbee-service #:key (bitlbee bitlbee)
                          (interface "127.0.0.1") (port 6667)
                          (extra-settings ""))
  "Return a service that runs @url{http://bitlbee.org,BitlBee}, a daemon that
acts as a gateway between IRC and chat networks.

The daemon will listen to the interface corresponding to the IP address
specified in @var{interface}, on @var{port}.  @code{127.0.0.1} means that only
local clients can connect, whereas @code{0.0.0.0} means that connections can
come from any networking interface.

In addition, @var{extra-settings} specifies a string to append to the
configuration file."
  (service bitlbee-service-type
           (bitlbee-configuration
            (bitlbee bitlbee)
            (interface interface) (port port)
            (extra-settings extra-settings))))


;;;
;;; Wicd.
;;;

(define %wicd-activation
  ;; Activation gexp for Wicd.
  #~(begin
      (use-modules (guix build utils))

      (mkdir-p "/etc/wicd")
      (let ((file-name "/etc/wicd/dhclient.conf.template.default"))
        (unless (file-exists? file-name)
          (copy-file (string-append #$wicd file-name)
                     file-name)))))

(define (wicd-shepherd-service wicd)
  "Return a shepherd service for WICD."
  (list (shepherd-service
         (documentation "Run the Wicd network manager.")
         (provision '(networking))
         (requirement '(user-processes dbus-system loopback))
         (start #~(make-forkexec-constructor
                   (list (string-append #$wicd "/sbin/wicd")
                         "--no-daemon")))
         (stop #~(make-kill-destructor)))))

(define wicd-service-type
  (service-type (name 'wicd)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          wicd-shepherd-service)
                       (service-extension dbus-root-service-type
                                          list)
                       (service-extension activation-service-type
                                          (const %wicd-activation))

                       ;; Add Wicd to the global profile.
                       (service-extension profile-service-type list)))))

(define* (wicd-service #:key (wicd wicd))
  "Return a service that runs @url{https://launchpad.net/wicd,Wicd}, a network
management daemon that aims to simplify wired and wireless networking.

This service adds the @var{wicd} package to the global profile, providing
several commands to interact with the daemon and configure networking:
@command{wicd-client}, a graphical user interface, and the @command{wicd-cli}
and @command{wicd-curses} user interfaces."
  (service wicd-service-type wicd))


;;;
;;; NetworkManager
;;;

(define %network-manager-activation
  ;; Activation gexp for NetworkManager.
  #~(begin
      (use-modules (guix build utils))
      (mkdir-p "/etc/NetworkManager/system-connections")))

(define (network-manager-shepherd-service network-manager)
  "Return a shepherd service for NETWORK-MANAGER."
  (list (shepherd-service
         (documentation "Run the NetworkManager.")
         (provision '(networking))
         (requirement '(user-processes dbus-system loopback))
         (start #~(make-forkexec-constructor
                   (list (string-append #$network-manager
                                        "/sbin/NetworkManager")
                         "--no-daemon")))
         (stop #~(make-kill-destructor)))))

(define network-manager-service-type
  (service-type (name 'network-manager)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          network-manager-shepherd-service)
                       (service-extension dbus-root-service-type list)
                       (service-extension activation-service-type
                                          (const %network-manager-activation))
                       ;; Add network-manager to the system profile.
                       (service-extension profile-service-type list)))))

(define* (network-manager-service #:key (network-manager network-manager))
  "Return a service that runs NetworkManager, a network connection manager
that attempting to keep active network connectivity when available."
  (service network-manager-service-type network-manager))


;;;
;;; Connman
;;;

(define %connman-activation
  ;; Activation gexp for Connman.
  #~(begin
      (use-modules (guix build utils))
      (mkdir-p "/var/lib/connman/")
      (mkdir-p "/var/lib/connman-vpn/")))

(define (connman-shepherd-service connman)
  "Return a shepherd service for Connman"
  (list (shepherd-service
         (documentation "Run Connman")
         (provision '(networking))
         (requirement '(user-processes dbus-system loopback))
         (start #~(make-forkexec-constructor
                   (list (string-append #$connman
                                        "/sbin/connmand")
                         "-n" "-r")))
         (stop #~(make-kill-destructor)))))

(define connman-service-type
  (service-type (name 'connman)
                (extensions
                 (list (service-extension shepherd-root-service-type
                                          connman-shepherd-service)
                       (service-extension dbus-root-service-type list)
                       (service-extension activation-service-type
                                          (const %connman-activation))
                       ;; Add connman to the system profile.
                       (service-extension profile-service-type list)))))

(define* (connman-service #:key (connman connman))
  "Return a service that runs @url{https://01.org/connman,Connman}, a network
connection manager.

This service adds the @var{connman} package to the global profile, providing
several the @command{connmanctl} command to interact with the daemon and
configure networking."
  (service connman-service-type connman))

;;; networking.scm ends here