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db4fdc04 | 1 | ;;; GNU Guix --- Functional package management for GNU |
9a8b9eb8 | 2 | ;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org> |
34044d55 | 3 | ;;; Copyright © 2015, 2016 Alex Kost <alezost@gmail.com> |
5f4a446d | 4 | ;;; Copyright © 2015, 2016 Mark H Weaver <mhw@netris.org> |
e10964ef | 5 | ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com> |
a535e122 | 6 | ;;; Copyright © 2016 Leo Famulari <leo@famulari.name> |
b58cbf9a | 7 | ;;; Copyright © 2016 David Craven <david@craven.ch> |
909147e4 | 8 | ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net> |
db4fdc04 LC |
9 | ;;; |
10 | ;;; This file is part of GNU Guix. | |
11 | ;;; | |
12 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
13 | ;;; under the terms of the GNU General Public License as published by | |
14 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
15 | ;;; your option) any later version. | |
16 | ;;; | |
17 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
18 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;;; GNU General Public License for more details. | |
21 | ;;; | |
22 | ;;; You should have received a copy of the GNU General Public License | |
23 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
24 | ||
25 | (define-module (gnu services base) | |
e87f0591 | 26 | #:use-module (guix store) |
db4fdc04 | 27 | #:use-module (gnu services) |
0190c1c0 | 28 | #:use-module (gnu services shepherd) |
4a3b3b07 | 29 | #:use-module (gnu services networking) |
6e828634 | 30 | #:use-module (gnu system pam) |
db4fdc04 | 31 | #:use-module (gnu system shadow) ; 'user-account', etc. |
0adfe95a | 32 | #:use-module (gnu system file-systems) ; 'file-system', etc. |
060d62a7 | 33 | #:use-module (gnu system mapped-devices) |
db4fdc04 | 34 | #:use-module (gnu packages admin) |
151a2c07 | 35 | #:use-module ((gnu packages linux) |
b58cbf9a | 36 | #:select (alsa-utils crda eudev e2fsprogs fuse gpm kbd lvm2 rng-tools)) |
db4fdc04 | 37 | #:use-module ((gnu packages base) |
bdb36958 | 38 | #:select (canonical-package glibc)) |
db4fdc04 | 39 | #:use-module (gnu packages package-management) |
2102ae2e | 40 | #:use-module (gnu packages ssh) |
2d1d2dd8 | 41 | #:use-module (gnu packages lsof) |
e2f4b305 | 42 | #:use-module ((gnu build file-systems) |
2c071ce9 | 43 | #:select (mount-flags->bit-mask)) |
b5f4e686 | 44 | #:use-module (guix gexp) |
6454b333 | 45 | #:use-module (guix records) |
db4fdc04 LC |
46 | #:use-module (srfi srfi-1) |
47 | #:use-module (srfi srfi-26) | |
6454b333 | 48 | #:use-module (ice-9 match) |
db4fdc04 | 49 | #:use-module (ice-9 format) |
e43e84ba LC |
50 | #:export (fstab-service-type |
51 | root-file-system-service | |
aa1145df | 52 | file-system-service-type |
d6e2a622 | 53 | user-unmount-service |
2a13d05e | 54 | swap-service |
a00dd9fb | 55 | user-processes-service |
e10964ef SB |
56 | session-environment-service |
57 | session-environment-service-type | |
a00dd9fb | 58 | host-name-service |
5eca9459 | 59 | console-keymap-service |
62ca0fdf | 60 | console-font-service |
c797fabe RW |
61 | |
62 | udev-configuration | |
63 | udev-configuration? | |
64 | udev-configuration-rules | |
0adfe95a | 65 | udev-service-type |
151a2c07 | 66 | udev-service |
80e6f37e | 67 | udev-rule |
66e4f01c LC |
68 | |
69 | mingetty-configuration | |
70 | mingetty-configuration? | |
db4fdc04 | 71 | mingetty-service |
cd6f6c22 | 72 | mingetty-service-type |
6454b333 LC |
73 | |
74 | %nscd-default-caches | |
75 | %nscd-default-configuration | |
76 | ||
77 | nscd-configuration | |
78 | nscd-configuration? | |
79 | ||
80 | nscd-cache | |
81 | nscd-cache? | |
82 | ||
0adfe95a | 83 | nscd-service-type |
db4fdc04 LC |
84 | nscd-service |
85 | syslog-service | |
9009538d | 86 | syslog-service-type |
44abcb28 | 87 | %default-syslog.conf |
0adfe95a | 88 | |
5b58c28b | 89 | %default-authorized-guix-keys |
0adfe95a LC |
90 | guix-configuration |
91 | guix-configuration? | |
8b198abe | 92 | guix-service |
cd6f6c22 | 93 | guix-service-type |
1c52181f LC |
94 | guix-publish-configuration |
95 | guix-publish-configuration? | |
96 | guix-publish-service | |
97 | guix-publish-service-type | |
24e96431 TČ |
98 | |
99 | gpm-configuration | |
100 | gpm-configuration? | |
8664cc88 LC |
101 | gpm-service-type |
102 | gpm-service | |
0adfe95a | 103 | |
9009538d | 104 | urandom-seed-service-type |
a535e122 | 105 | urandom-seed-service |
24e96431 TČ |
106 | |
107 | rngd-configuration | |
108 | rngd-configuration? | |
b58cbf9a DC |
109 | rngd-service-type |
110 | rngd-service | |
909147e4 RW |
111 | pam-limits-service-type |
112 | pam-limits-service | |
a535e122 | 113 | |
8b198abe | 114 | %base-services)) |
db4fdc04 LC |
115 | |
116 | ;;; Commentary: | |
117 | ;;; | |
118 | ;;; Base system services---i.e., services that 99% of the users will want to | |
119 | ;;; use. | |
120 | ;;; | |
121 | ;;; Code: | |
122 | ||
0adfe95a LC |
123 | \f |
124 | ;;; | |
125 | ;;; File systems. | |
126 | ;;; | |
a00dd9fb | 127 | |
e43e84ba LC |
128 | (define (file-system->fstab-entry file-system) |
129 | "Return a @file{/etc/fstab} entry for @var{file-system}." | |
130 | (string-append (case (file-system-title file-system) | |
131 | ((label) | |
132 | (string-append "LABEL=" (file-system-device file-system))) | |
133 | ((uuid) | |
134 | (string-append | |
135 | "UUID=" | |
136 | (uuid->string (file-system-device file-system)))) | |
137 | (else | |
138 | (file-system-device file-system))) | |
139 | "\t" | |
140 | (file-system-mount-point file-system) "\t" | |
141 | (file-system-type file-system) "\t" | |
142 | (or (file-system-options file-system) "defaults") "\t" | |
143 | ||
144 | ;; XXX: Omit the 'fs_freq' and 'fs_passno' fields because we | |
145 | ;; don't have anything sensible to put in there. | |
146 | )) | |
147 | ||
148 | (define (file-systems->fstab file-systems) | |
149 | "Return a @file{/etc} entry for an @file{fstab} describing | |
150 | @var{file-systems}." | |
151 | `(("fstab" ,(plain-file "fstab" | |
152 | (string-append | |
153 | "\ | |
154 | # This file was generated from your GuixSD configuration. Any changes | |
155 | # will be lost upon reboot or reconfiguration.\n\n" | |
156 | (string-join (map file-system->fstab-entry | |
157 | file-systems) | |
158 | "\n") | |
159 | "\n"))))) | |
160 | ||
161 | (define fstab-service-type | |
162 | ;; The /etc/fstab service. | |
163 | (service-type (name 'fstab) | |
164 | (extensions | |
165 | (list (service-extension etc-service-type | |
166 | file-systems->fstab))) | |
aa1145df | 167 | (compose concatenate) |
e43e84ba LC |
168 | (extend append))) |
169 | ||
d4053c71 AK |
170 | (define %root-file-system-shepherd-service |
171 | (shepherd-service | |
be1c2c54 LC |
172 | (documentation "Take care of the root file system.") |
173 | (provision '(root-file-system)) | |
174 | (start #~(const #t)) | |
175 | (stop #~(lambda _ | |
176 | ;; Return #f if successfully stopped. | |
177 | (sync) | |
178 | ||
179 | (call-with-blocked-asyncs | |
180 | (lambda () | |
181 | (let ((null (%make-void-port "w"))) | |
34044d55 | 182 | ;; Close 'shepherd.log'. |
be1c2c54 | 183 | (display "closing log\n") |
34044d55 | 184 | ((@ (shepherd comm) stop-logging)) |
be1c2c54 LC |
185 | |
186 | ;; Redirect the default output ports.. | |
187 | (set-current-output-port null) | |
188 | (set-current-error-port null) | |
189 | ||
190 | ;; Close /dev/console. | |
191 | (for-each close-fdes '(0 1 2)) | |
192 | ||
193 | ;; At this point, there are no open files left, so the | |
194 | ;; root file system can be re-mounted read-only. | |
195 | (mount #f "/" #f | |
196 | (logior MS_REMOUNT MS_RDONLY) | |
197 | #:update-mtab? #f) | |
198 | ||
199 | #f))))) | |
200 | (respawn? #f))) | |
a00dd9fb | 201 | |
0adfe95a | 202 | (define root-file-system-service-type |
d4053c71 AK |
203 | (shepherd-service-type 'root-file-system |
204 | (const %root-file-system-shepherd-service))) | |
0adfe95a LC |
205 | |
206 | (define (root-file-system-service) | |
207 | "Return a service whose sole purpose is to re-mount read-only the root file | |
208 | system upon shutdown (aka. cleanly \"umounting\" root.) | |
209 | ||
210 | This service must be the root of the service dependency graph so that its | |
d4053c71 | 211 | 'stop' action is invoked when shepherd is the only process left." |
0adfe95a LC |
212 | (service root-file-system-service-type #f)) |
213 | ||
d4053c71 | 214 | (define (file-system->shepherd-service-name file-system) |
0adfe95a LC |
215 | "Return the symbol that denotes the service mounting and unmounting |
216 | FILE-SYSTEM." | |
217 | (symbol-append 'file-system- | |
218 | (string->symbol (file-system-mount-point file-system)))) | |
219 | ||
d4053c71 AK |
220 | (define (mapped-device->shepherd-service-name md) |
221 | "Return the symbol that denotes the shepherd service of MD, a <mapped-device>." | |
e502bf89 LC |
222 | (symbol-append 'device-mapping- |
223 | (string->symbol (mapped-device-target md)))) | |
224 | ||
d4053c71 | 225 | (define dependency->shepherd-service-name |
e502bf89 LC |
226 | (match-lambda |
227 | ((? mapped-device? md) | |
d4053c71 | 228 | (mapped-device->shepherd-service-name md)) |
e502bf89 | 229 | ((? file-system? fs) |
d4053c71 | 230 | (file-system->shepherd-service-name fs)))) |
e502bf89 | 231 | |
d4053c71 | 232 | (define (file-system-shepherd-service file-system) |
aa1145df LC |
233 | "Return the shepherd service for @var{file-system}, or @code{#f} if |
234 | @var{file-system} is not auto-mounted upon boot." | |
e43e84ba LC |
235 | (let ((target (file-system-mount-point file-system)) |
236 | (device (file-system-device file-system)) | |
237 | (type (file-system-type file-system)) | |
238 | (title (file-system-title file-system)) | |
239 | (check? (file-system-check? file-system)) | |
240 | (create? (file-system-create-mount-point? file-system)) | |
241 | (dependencies (file-system-dependencies file-system))) | |
aa1145df LC |
242 | (and (file-system-mount? file-system) |
243 | (with-imported-modules '((gnu build file-systems) | |
244 | (guix build bournish)) | |
a91c3fc7 LC |
245 | (shepherd-service |
246 | (provision (list (file-system->shepherd-service-name file-system))) | |
247 | (requirement `(root-file-system | |
248 | ,@(map dependency->shepherd-service-name dependencies))) | |
249 | (documentation "Check, mount, and unmount the given file system.") | |
250 | (start #~(lambda args | |
251 | ;; FIXME: Use or factorize with 'mount-file-system'. | |
252 | (let ((device (canonicalize-device-spec #$device '#$title)) | |
253 | (flags #$(mount-flags->bit-mask | |
254 | (file-system-flags file-system)))) | |
255 | #$(if create? | |
256 | #~(mkdir-p #$target) | |
257 | #~#t) | |
258 | #$(if check? | |
259 | #~(begin | |
260 | ;; Make sure fsck.ext2 & co. can be found. | |
261 | (setenv "PATH" | |
262 | (string-append | |
263 | #$e2fsprogs "/sbin:" | |
264 | "/run/current-system/profile/sbin:" | |
265 | (getenv "PATH"))) | |
266 | (check-file-system device #$type)) | |
267 | #~#t) | |
268 | ||
269 | (mount device #$target #$type flags | |
270 | #$(file-system-options file-system)) | |
271 | ||
272 | ;; For read-only bind mounts, an extra remount is | |
273 | ;; needed, as per <http://lwn.net/Articles/281157/>, | |
274 | ;; which still applies to Linux 4.0. | |
275 | (when (and (= MS_BIND (logand flags MS_BIND)) | |
276 | (= MS_RDONLY (logand flags MS_RDONLY))) | |
277 | (mount device #$target #$type | |
278 | (logior MS_BIND MS_REMOUNT MS_RDONLY)))) | |
279 | #t)) | |
280 | (stop #~(lambda args | |
281 | ;; Normally there are no processes left at this point, so | |
282 | ;; TARGET can be safely unmounted. | |
283 | ||
284 | ;; Make sure PID 1 doesn't keep TARGET busy. | |
285 | (chdir "/") | |
286 | ||
287 | (umount #$target) | |
288 | #f)) | |
289 | ||
290 | ;; We need an additional module. | |
291 | (modules `(((gnu build file-systems) | |
292 | #:select (check-file-system canonicalize-device-spec)) | |
aa1145df | 293 | ,@%default-modules))))))) |
e43e84ba | 294 | |
0adfe95a | 295 | (define file-system-service-type |
aa1145df | 296 | (service-type (name 'file-systems) |
e43e84ba | 297 | (extensions |
d4053c71 | 298 | (list (service-extension shepherd-root-service-type |
aa1145df LC |
299 | (lambda (file-systems) |
300 | (filter-map file-system-shepherd-service | |
301 | file-systems))) | |
e43e84ba | 302 | (service-extension fstab-service-type |
aa1145df LC |
303 | identity))) |
304 | (compose concatenate) | |
305 | (extend append))) | |
0adfe95a LC |
306 | |
307 | (define user-unmount-service-type | |
d4053c71 | 308 | (shepherd-service-type |
5f44ee4f | 309 | 'user-file-systems |
0adfe95a | 310 | (lambda (known-mount-points) |
d4053c71 | 311 | (shepherd-service |
0adfe95a | 312 | (documentation "Unmount manually-mounted file systems.") |
5f44ee4f | 313 | (provision '(user-file-systems)) |
0adfe95a LC |
314 | (start #~(const #t)) |
315 | (stop #~(lambda args | |
316 | (define (known? mount-point) | |
317 | (member mount-point | |
318 | (cons* "/proc" "/sys" '#$known-mount-points))) | |
319 | ||
320 | ;; Make sure we don't keep the user's mount points busy. | |
321 | (chdir "/") | |
322 | ||
323 | (for-each (lambda (mount-point) | |
324 | (format #t "unmounting '~a'...~%" mount-point) | |
325 | (catch 'system-error | |
326 | (lambda () | |
327 | (umount mount-point)) | |
328 | (lambda args | |
329 | (let ((errno (system-error-errno args))) | |
330 | (format #t "failed to unmount '~a': ~a~%" | |
331 | mount-point (strerror errno)))))) | |
332 | (filter (negate known?) (mount-points))) | |
333 | #f)))))) | |
023f391c | 334 | |
d6e2a622 LC |
335 | (define (user-unmount-service known-mount-points) |
336 | "Return a service whose sole purpose is to unmount file systems not listed | |
337 | in KNOWN-MOUNT-POINTS when it is stopped." | |
0adfe95a | 338 | (service user-unmount-service-type known-mount-points)) |
d6e2a622 | 339 | |
7d57cfd3 LC |
340 | (define %do-not-kill-file |
341 | ;; Name of the file listing PIDs of processes that must survive when halting | |
342 | ;; the system. Typical example is user-space file systems. | |
b8c02c18 | 343 | "/etc/shepherd/do-not-kill") |
7d57cfd3 | 344 | |
0adfe95a | 345 | (define user-processes-service-type |
d4053c71 | 346 | (shepherd-service-type |
00184239 | 347 | 'user-processes |
0adfe95a LC |
348 | (match-lambda |
349 | ((requirements grace-delay) | |
d4053c71 | 350 | (shepherd-service |
0adfe95a LC |
351 | (documentation "When stopped, terminate all user processes.") |
352 | (provision '(user-processes)) | |
5f44ee4f | 353 | (requirement (cons* 'root-file-system 'user-file-systems |
d4053c71 | 354 | (map file-system->shepherd-service-name |
5f44ee4f | 355 | requirements))) |
0adfe95a LC |
356 | (start #~(const #t)) |
357 | (stop #~(lambda _ | |
358 | (define (kill-except omit signal) | |
359 | ;; Kill all the processes with SIGNAL except those listed | |
360 | ;; in OMIT and the current process. | |
361 | (let ((omit (cons (getpid) omit))) | |
362 | (for-each (lambda (pid) | |
363 | (unless (memv pid omit) | |
364 | (false-if-exception | |
365 | (kill pid signal)))) | |
366 | (processes)))) | |
367 | ||
368 | (define omitted-pids | |
369 | ;; List of PIDs that must not be killed. | |
370 | (if (file-exists? #$%do-not-kill-file) | |
371 | (map string->number | |
372 | (call-with-input-file #$%do-not-kill-file | |
373 | (compose string-tokenize | |
374 | (@ (ice-9 rdelim) read-string)))) | |
375 | '())) | |
376 | ||
377 | (define (now) | |
378 | (car (gettimeofday))) | |
379 | ||
380 | (define (sleep* n) | |
381 | ;; Really sleep N seconds. | |
382 | ;; Work around <http://bugs.gnu.org/19581>. | |
383 | (define start (now)) | |
384 | (let loop ((elapsed 0)) | |
385 | (when (> n elapsed) | |
386 | (sleep (- n elapsed)) | |
387 | (loop (- (now) start))))) | |
388 | ||
389 | (define lset= (@ (srfi srfi-1) lset=)) | |
390 | ||
391 | (display "sending all processes the TERM signal\n") | |
392 | ||
393 | (if (null? omitted-pids) | |
394 | (begin | |
395 | ;; Easy: terminate all of them. | |
396 | (kill -1 SIGTERM) | |
397 | (sleep* #$grace-delay) | |
398 | (kill -1 SIGKILL)) | |
399 | (begin | |
400 | ;; Kill them all except OMITTED-PIDS. XXX: We would | |
401 | ;; like to (kill -1 SIGSTOP) to get a fixed list of | |
402 | ;; processes, like 'killall5' does, but that seems | |
403 | ;; unreliable. | |
404 | (kill-except omitted-pids SIGTERM) | |
405 | (sleep* #$grace-delay) | |
406 | (kill-except omitted-pids SIGKILL) | |
407 | (delete-file #$%do-not-kill-file))) | |
408 | ||
409 | (let wait () | |
410 | (let ((pids (processes))) | |
411 | (unless (lset= = pids (cons 1 omitted-pids)) | |
412 | (format #t "waiting for process termination\ | |
413 | (processes left: ~s)~%" | |
414 | pids) | |
415 | (sleep* 2) | |
416 | (wait)))) | |
417 | ||
418 | (display "all processes have been terminated\n") | |
419 | #f)) | |
420 | (respawn? #f)))))) | |
421 | ||
422 | (define* (user-processes-service file-systems #:key (grace-delay 4)) | |
a00dd9fb LC |
423 | "Return the service that is responsible for terminating all the processes so |
424 | that the root file system can be re-mounted read-only, just before | |
425 | rebooting/halting. Processes still running GRACE-DELAY seconds after SIGTERM | |
426 | has been sent are terminated with SIGKILL. | |
427 | ||
d4053c71 | 428 | The returned service will depend on 'root-file-system' and on all the shepherd |
0adfe95a | 429 | services corresponding to FILE-SYSTEMS. |
023f391c | 430 | |
a00dd9fb LC |
431 | All the services that spawn processes must depend on this one so that they are |
432 | stopped before 'kill' is called." | |
0adfe95a | 433 | (service user-processes-service-type |
be21979d | 434 | (list (filter file-system-mount? file-systems) grace-delay))) |
d656c14e | 435 | |
0adfe95a | 436 | \f |
a535e122 LF |
437 | ;;; |
438 | ;;; Preserve entropy to seed /dev/urandom on boot. | |
439 | ;;; | |
440 | ||
441 | (define %random-seed-file | |
442 | "/var/lib/random-seed") | |
443 | ||
a535e122 LF |
444 | (define (urandom-seed-shepherd-service _) |
445 | "Return a shepherd service for the /dev/urandom seed." | |
446 | (list (shepherd-service | |
447 | (documentation "Preserve entropy across reboots for /dev/urandom.") | |
448 | (provision '(urandom-seed)) | |
449 | (requirement '(user-processes)) | |
450 | (start #~(lambda _ | |
451 | ;; On boot, write random seed into /dev/urandom. | |
452 | (when (file-exists? #$%random-seed-file) | |
453 | (call-with-input-file #$%random-seed-file | |
454 | (lambda (seed) | |
455 | (call-with-output-file "/dev/urandom" | |
456 | (lambda (urandom) | |
457 | (dump-port seed urandom)))))) | |
71cb237a LF |
458 | ;; Immediately refresh the seed in case the system doesn't |
459 | ;; shut down cleanly. | |
460 | (call-with-input-file "/dev/urandom" | |
461 | (lambda (urandom) | |
462 | (let ((previous-umask (umask #o077)) | |
463 | (buf (make-bytevector 512))) | |
464 | (mkdir-p (dirname #$%random-seed-file)) | |
465 | (get-bytevector-n! urandom buf 0 512) | |
466 | (call-with-output-file #$%random-seed-file | |
467 | (lambda (seed) | |
468 | (put-bytevector seed buf))) | |
469 | (umask previous-umask)))) | |
a535e122 LF |
470 | #t)) |
471 | (stop #~(lambda _ | |
472 | ;; During shutdown, write from /dev/urandom into random seed. | |
473 | (let ((buf (make-bytevector 512))) | |
474 | (call-with-input-file "/dev/urandom" | |
475 | (lambda (urandom) | |
8fe5d95e LF |
476 | (let ((previous-umask (umask #o077))) |
477 | (get-bytevector-n! urandom buf 0 512) | |
71cb237a | 478 | (mkdir-p (dirname #$%random-seed-file)) |
8fe5d95e LF |
479 | (call-with-output-file #$%random-seed-file |
480 | (lambda (seed) | |
481 | (put-bytevector seed buf))) | |
482 | (umask previous-umask)) | |
a535e122 LF |
483 | #t))))) |
484 | (modules `((rnrs bytevectors) | |
485 | (rnrs io ports) | |
486 | ,@%default-modules))))) | |
487 | ||
488 | (define urandom-seed-service-type | |
489 | (service-type (name 'urandom-seed) | |
490 | (extensions | |
491 | (list (service-extension shepherd-root-service-type | |
71cb237a | 492 | urandom-seed-shepherd-service))))) |
a535e122 LF |
493 | |
494 | (define (urandom-seed-service) | |
495 | (service urandom-seed-service-type #f)) | |
496 | ||
b58cbf9a DC |
497 | |
498 | ;;; | |
499 | ;;; Add hardware random number generator to entropy pool. | |
500 | ;;; | |
501 | ||
502 | (define-record-type* <rngd-configuration> | |
503 | rngd-configuration make-rngd-configuration | |
504 | rngd-configuration? | |
505 | (rng-tools rngd-configuration-rng-tools) ;package | |
506 | (device rngd-configuration-device)) ;string | |
507 | ||
508 | (define rngd-service-type | |
509 | (shepherd-service-type | |
510 | 'rngd | |
511 | (lambda (config) | |
512 | (define rng-tools (rngd-configuration-rng-tools config)) | |
513 | (define device (rngd-configuration-device config)) | |
514 | ||
515 | (define rngd-command | |
516 | (list #~(string-append #$rng-tools "/sbin/rngd") | |
517 | "-f" "-r" device)) | |
518 | ||
519 | (shepherd-service | |
520 | (documentation "Add TRNG to entropy pool.") | |
521 | (requirement '(udev)) | |
522 | (provision '(trng)) | |
523 | (start #~(make-forkexec-constructor #$@rngd-command)) | |
524 | (stop #~(make-kill-destructor)))))) | |
525 | ||
526 | (define* (rngd-service #:key | |
527 | (rng-tools rng-tools) | |
528 | (device "/dev/hwrng")) | |
529 | "Return a service that runs the @command{rngd} program from @var{rng-tools} | |
530 | to add @var{device} to the kernel's entropy pool. The service will fail if | |
531 | @var{device} does not exist." | |
532 | (service rngd-service-type | |
533 | (rngd-configuration | |
534 | (rng-tools rng-tools) | |
535 | (device device)))) | |
536 | ||
537 | ||
e10964ef SB |
538 | ;;; |
539 | ;;; System-wide environment variables. | |
540 | ;;; | |
541 | ||
542 | (define (environment-variables->environment-file vars) | |
543 | "Return a file for pam_env(8) that contains environment variables VARS." | |
544 | (apply mixed-text-file "environment" | |
545 | (append-map (match-lambda | |
546 | ((key . value) | |
547 | (list key "=" value "\n"))) | |
548 | vars))) | |
549 | ||
550 | (define session-environment-service-type | |
551 | (service-type | |
552 | (name 'session-environment) | |
553 | (extensions | |
554 | (list (service-extension | |
555 | etc-service-type | |
556 | (lambda (vars) | |
557 | (list `("environment" | |
558 | ,(environment-variables->environment-file vars))))))) | |
559 | (compose concatenate) | |
560 | (extend append))) | |
561 | ||
562 | (define (session-environment-service vars) | |
563 | "Return a service that builds the @file{/etc/environment}, which can be read | |
564 | by PAM-aware applications to set environment variables for sessions. | |
565 | ||
566 | VARS should be an association list in which both the keys and the values are | |
567 | strings or string-valued gexps." | |
568 | (service session-environment-service-type vars)) | |
569 | ||
570 | \f | |
0adfe95a LC |
571 | ;;; |
572 | ;;; Console & co. | |
573 | ;;; | |
574 | ||
575 | (define host-name-service-type | |
d4053c71 | 576 | (shepherd-service-type |
00184239 | 577 | 'host-name |
0adfe95a | 578 | (lambda (name) |
d4053c71 | 579 | (shepherd-service |
0adfe95a LC |
580 | (documentation "Initialize the machine's host name.") |
581 | (provision '(host-name)) | |
582 | (start #~(lambda _ | |
583 | (sethostname #$name))) | |
584 | (respawn? #f))))) | |
a00dd9fb | 585 | |
db4fdc04 | 586 | (define (host-name-service name) |
51da7ca0 | 587 | "Return a service that sets the host name to @var{name}." |
0adfe95a | 588 | (service host-name-service-type name)) |
db4fdc04 | 589 | |
62ca0fdf LC |
590 | (define (unicode-start tty) |
591 | "Return a gexp to start Unicode support on @var{tty}." | |
592 | ||
593 | ;; We have to run 'unicode_start' in a pipe so that when it invokes the | |
594 | ;; 'tty' command, that command returns TTY. | |
595 | #~(begin | |
596 | (let ((pid (primitive-fork))) | |
597 | (case pid | |
598 | ((0) | |
599 | (close-fdes 0) | |
600 | (dup2 (open-fdes #$tty O_RDONLY) 0) | |
601 | (close-fdes 1) | |
602 | (dup2 (open-fdes #$tty O_WRONLY) 1) | |
603 | (execl (string-append #$kbd "/bin/unicode_start") | |
604 | "unicode_start")) | |
605 | (else | |
606 | (zero? (cdr (waitpid pid)))))))) | |
607 | ||
0adfe95a | 608 | (define console-keymap-service-type |
d4053c71 | 609 | (shepherd-service-type |
00184239 | 610 | 'console-keymap |
b3d05f48 | 611 | (lambda (files) |
d4053c71 | 612 | (shepherd-service |
0adfe95a LC |
613 | (documentation (string-append "Load console keymap (loadkeys).")) |
614 | (provision '(console-keymap)) | |
615 | (start #~(lambda _ | |
616 | (zero? (system* (string-append #$kbd "/bin/loadkeys") | |
b3d05f48 | 617 | #$@files)))) |
0adfe95a LC |
618 | (respawn? #f))))) |
619 | ||
b3d05f48 AK |
620 | (define (console-keymap-service . files) |
621 | "Return a service to load console keymaps from @var{files}." | |
622 | (service console-keymap-service-type files)) | |
0adfe95a LC |
623 | |
624 | (define console-font-service-type | |
d4053c71 | 625 | (shepherd-service-type |
00184239 | 626 | 'console-font |
0adfe95a LC |
627 | (match-lambda |
628 | ((tty font) | |
629 | (let ((device (string-append "/dev/" tty))) | |
d4053c71 | 630 | (shepherd-service |
0adfe95a LC |
631 | (documentation "Load a Unicode console font.") |
632 | (provision (list (symbol-append 'console-font- | |
633 | (string->symbol tty)))) | |
634 | ||
635 | ;; Start after mingetty has been started on TTY, otherwise the settings | |
636 | ;; are ignored. | |
637 | (requirement (list (symbol-append 'term- | |
638 | (string->symbol tty)))) | |
639 | ||
640 | (start #~(lambda _ | |
641 | (and #$(unicode-start device) | |
642 | (zero? | |
643 | (system* (string-append #$kbd "/bin/setfont") | |
644 | "-C" #$device #$font))))) | |
645 | (stop #~(const #t)) | |
646 | (respawn? #f))))))) | |
5eca9459 | 647 | |
62ca0fdf LC |
648 | (define* (console-font-service tty #:optional (font "LatGrkCyr-8x16")) |
649 | "Return a service that sets up Unicode support in @var{tty} and loads | |
650 | @var{font} for that tty (fonts are per virtual console in Linux.)" | |
651 | ;; Note: 'LatGrkCyr-8x16' has the advantage of providing three common | |
652 | ;; scripts as well as glyphs for em dash, quotation marks, and other Unicode | |
653 | ;; codepoints notably found in the UTF-8 manual. | |
0adfe95a | 654 | (service console-font-service-type (list tty font))) |
62ca0fdf | 655 | |
66e4f01c LC |
656 | (define-record-type* <mingetty-configuration> |
657 | mingetty-configuration make-mingetty-configuration | |
658 | mingetty-configuration? | |
659 | (mingetty mingetty-configuration-mingetty ;<package> | |
660 | (default mingetty)) | |
661 | (tty mingetty-configuration-tty) ;string | |
662 | (motd mingetty-configuration-motd ;file-like | |
663 | (default (plain-file "motd" "Welcome.\n"))) | |
664 | (auto-login mingetty-auto-login ;string | #f | |
665 | (default #f)) | |
666 | (login-program mingetty-login-program ;gexp | |
667 | (default #f)) | |
668 | (login-pause? mingetty-login-pause? ;Boolean | |
669 | (default #f)) | |
670 | ||
671 | ;; Allow empty passwords by default so that first-time users can log in when | |
672 | ;; the 'root' account has just been created. | |
673 | (allow-empty-passwords? mingetty-configuration-allow-empty-passwords? | |
674 | (default #t))) ;Boolean | |
675 | ||
0adfe95a LC |
676 | (define (mingetty-pam-service conf) |
677 | "Return the list of PAM service needed for CONF." | |
678 | ;; Let 'login' be known to PAM. All the mingetty services will have that | |
679 | ;; PAM service, but that's fine because they're all identical and duplicates | |
680 | ;; are removed. | |
681 | (list (unix-pam-service "login" | |
682 | #:allow-empty-passwords? | |
683 | (mingetty-configuration-allow-empty-passwords? conf) | |
684 | #:motd | |
685 | (mingetty-configuration-motd conf)))) | |
686 | ||
d4053c71 | 687 | (define mingetty-shepherd-service |
0adfe95a | 688 | (match-lambda |
66e4f01c LC |
689 | (($ <mingetty-configuration> mingetty tty motd auto-login login-program |
690 | login-pause? allow-empty-passwords?) | |
0adfe95a | 691 | (list |
d4053c71 | 692 | (shepherd-service |
0adfe95a LC |
693 | (documentation "Run mingetty on an tty.") |
694 | (provision (list (symbol-append 'term- (string->symbol tty)))) | |
695 | ||
696 | ;; Since the login prompt shows the host name, wait for the 'host-name' | |
697 | ;; service to be done. Also wait for udev essentially so that the tty | |
698 | ;; text is not lost in the middle of kernel messages (XXX). | |
699 | (requirement '(user-processes host-name udev)) | |
700 | ||
701 | (start #~(make-forkexec-constructor | |
702 | (list (string-append #$mingetty "/sbin/mingetty") | |
703 | "--noclear" #$tty | |
704 | #$@(if auto-login | |
705 | #~("--autologin" #$auto-login) | |
706 | #~()) | |
707 | #$@(if login-program | |
708 | #~("--loginprog" #$login-program) | |
709 | #~()) | |
710 | #$@(if login-pause? | |
711 | #~("--loginpause") | |
712 | #~())))) | |
713 | (stop #~(make-kill-destructor))))))) | |
714 | ||
715 | (define mingetty-service-type | |
716 | (service-type (name 'mingetty) | |
d4053c71 AK |
717 | (extensions (list (service-extension shepherd-root-service-type |
718 | mingetty-shepherd-service) | |
0adfe95a LC |
719 | (service-extension pam-root-service-type |
720 | mingetty-pam-service))))) | |
721 | ||
722 | (define* (mingetty-service config) | |
723 | "Return a service to run mingetty according to @var{config}, which specifies | |
724 | the tty to run, among other things." | |
725 | (service mingetty-service-type config)) | |
db4fdc04 | 726 | |
6454b333 LC |
727 | (define-record-type* <nscd-configuration> nscd-configuration |
728 | make-nscd-configuration | |
729 | nscd-configuration? | |
730 | (log-file nscd-configuration-log-file ;string | |
731 | (default "/var/log/nscd.log")) | |
732 | (debug-level nscd-debug-level ;integer | |
733 | (default 0)) | |
734 | ;; TODO: See nscd.conf in glibc for other options to add. | |
735 | (caches nscd-configuration-caches ;list of <nscd-cache> | |
b893f1ae LC |
736 | (default %nscd-default-caches)) |
737 | (name-services nscd-configuration-name-services ;list of <packages> | |
738 | (default '())) | |
739 | (glibc nscd-configuration-glibc ;<package> | |
740 | (default (canonical-package glibc)))) | |
6454b333 LC |
741 | |
742 | (define-record-type* <nscd-cache> nscd-cache make-nscd-cache | |
743 | nscd-cache? | |
744 | (database nscd-cache-database) ;symbol | |
745 | (positive-time-to-live nscd-cache-positive-time-to-live) ;integer | |
746 | (negative-time-to-live nscd-cache-negative-time-to-live | |
747 | (default 20)) ;integer | |
748 | (suggested-size nscd-cache-suggested-size ;integer ("default module | |
749 | ;of hash table") | |
750 | (default 211)) | |
751 | (check-files? nscd-cache-check-files? ;Boolean | |
752 | (default #t)) | |
753 | (persistent? nscd-cache-persistent? ;Boolean | |
754 | (default #t)) | |
755 | (shared? nscd-cache-shared? ;Boolean | |
756 | (default #t)) | |
757 | (max-database-size nscd-cache-max-database-size ;integer | |
758 | (default (* 32 (expt 2 20)))) | |
759 | (auto-propagate? nscd-cache-auto-propagate? ;Boolean | |
760 | (default #t))) | |
761 | ||
762 | (define %nscd-default-caches | |
763 | ;; Caches that we want to enable by default. Note that when providing an | |
764 | ;; empty nscd.conf, all caches are disabled. | |
765 | (list (nscd-cache (database 'hosts) | |
766 | ||
767 | ;; Aggressively cache the host name cache to improve | |
768 | ;; privacy and resilience. | |
769 | (positive-time-to-live (* 3600 12)) | |
770 | (negative-time-to-live 20) | |
771 | (persistent? #t)) | |
772 | ||
773 | (nscd-cache (database 'services) | |
774 | ||
775 | ;; Services are unlikely to change, so we can be even more | |
776 | ;; aggressive. | |
777 | (positive-time-to-live (* 3600 24)) | |
778 | (negative-time-to-live 3600) | |
779 | (check-files? #t) ;check /etc/services changes | |
780 | (persistent? #t)))) | |
781 | ||
782 | (define %nscd-default-configuration | |
783 | ;; Default nscd configuration. | |
784 | (nscd-configuration)) | |
785 | ||
786 | (define (nscd.conf-file config) | |
787 | "Return the @file{nscd.conf} configuration file for @var{config}, an | |
788 | @code{<nscd-configuration>} object." | |
789 | (define cache->config | |
790 | (match-lambda | |
be1c2c54 LC |
791 | (($ <nscd-cache> (= symbol->string database) |
792 | positive-ttl negative-ttl size check-files? | |
793 | persistent? shared? max-size propagate?) | |
794 | (string-append "\nenable-cache\t" database "\tyes\n" | |
795 | ||
796 | "positive-time-to-live\t" database "\t" | |
797 | (number->string positive-ttl) "\n" | |
798 | "negative-time-to-live\t" database "\t" | |
799 | (number->string negative-ttl) "\n" | |
800 | "suggested-size\t" database "\t" | |
801 | (number->string size) "\n" | |
802 | "check-files\t" database "\t" | |
803 | (if check-files? "yes\n" "no\n") | |
804 | "persistent\t" database "\t" | |
805 | (if persistent? "yes\n" "no\n") | |
806 | "shared\t" database "\t" | |
807 | (if shared? "yes\n" "no\n") | |
808 | "max-db-size\t" database "\t" | |
809 | (number->string max-size) "\n" | |
810 | "auto-propagate\t" database "\t" | |
811 | (if propagate? "yes\n" "no\n"))))) | |
6454b333 LC |
812 | |
813 | (match config | |
814 | (($ <nscd-configuration> log-file debug-level caches) | |
be1c2c54 LC |
815 | (plain-file "nscd.conf" |
816 | (string-append "\ | |
6454b333 | 817 | # Configuration of libc's name service cache daemon (nscd).\n\n" |
be1c2c54 LC |
818 | (if log-file |
819 | (string-append "logfile\t" log-file) | |
820 | "") | |
821 | "\n" | |
822 | (if debug-level | |
823 | (string-append "debug-level\t" | |
824 | (number->string debug-level)) | |
825 | "") | |
826 | "\n" | |
827 | (string-concatenate | |
828 | (map cache->config caches))))))) | |
6454b333 | 829 | |
d4053c71 AK |
830 | (define (nscd-shepherd-service config) |
831 | "Return a shepherd service for CONFIG, an <nscd-configuration> object." | |
0adfe95a LC |
832 | (let ((nscd.conf (nscd.conf-file config)) |
833 | (name-services (nscd-configuration-name-services config))) | |
d4053c71 | 834 | (list (shepherd-service |
0adfe95a LC |
835 | (documentation "Run libc's name service cache daemon (nscd).") |
836 | (provision '(nscd)) | |
837 | (requirement '(user-processes)) | |
838 | (start #~(make-forkexec-constructor | |
839 | (list (string-append #$(nscd-configuration-glibc config) | |
840 | "/sbin/nscd") | |
841 | "-f" #$nscd.conf "--foreground") | |
842 | ||
04101d99 LC |
843 | ;; Wait for the PID file. However, the PID file is |
844 | ;; written before nscd is actually listening on its | |
845 | ;; socket (XXX). | |
846 | #:pid-file "/var/run/nscd/nscd.pid" | |
847 | ||
0adfe95a LC |
848 | #:environment-variables |
849 | (list (string-append "LD_LIBRARY_PATH=" | |
850 | (string-join | |
851 | (map (lambda (dir) | |
852 | (string-append dir "/lib")) | |
853 | (list #$@name-services)) | |
854 | ":"))))) | |
cc7234ae | 855 | (stop #~(make-kill-destructor)))))) |
0adfe95a LC |
856 | |
857 | (define nscd-activation | |
858 | ;; Actions to take before starting nscd. | |
859 | #~(begin | |
860 | (use-modules (guix build utils)) | |
861 | (mkdir-p "/var/run/nscd") | |
862 | (mkdir-p "/var/db/nscd"))) ;for the persistent cache | |
863 | ||
864 | (define nscd-service-type | |
865 | (service-type (name 'nscd) | |
866 | (extensions | |
867 | (list (service-extension activation-service-type | |
868 | (const nscd-activation)) | |
d4053c71 AK |
869 | (service-extension shepherd-root-service-type |
870 | nscd-shepherd-service))) | |
0adfe95a LC |
871 | |
872 | ;; This can be extended by providing additional name services | |
873 | ;; such as nss-mdns. | |
874 | (compose concatenate) | |
875 | (extend (lambda (config name-services) | |
876 | (nscd-configuration | |
877 | (inherit config) | |
878 | (name-services (append | |
879 | (nscd-configuration-name-services config) | |
880 | name-services))))))) | |
881 | ||
b893f1ae | 882 | (define* (nscd-service #:optional (config %nscd-default-configuration)) |
6454b333 | 883 | "Return a service that runs libc's name service cache daemon (nscd) with the |
b893f1ae LC |
884 | given @var{config}---an @code{<nscd-configuration>} object. @xref{Name |
885 | Service Switch}, for an example." | |
0adfe95a LC |
886 | (service nscd-service-type config)) |
887 | ||
888 | (define syslog-service-type | |
d4053c71 | 889 | (shepherd-service-type |
00184239 | 890 | 'syslog |
0adfe95a | 891 | (lambda (config-file) |
d4053c71 | 892 | (shepherd-service |
0adfe95a LC |
893 | (documentation "Run the syslog daemon (syslogd).") |
894 | (provision '(syslogd)) | |
895 | (requirement '(user-processes)) | |
896 | (start #~(make-forkexec-constructor | |
897 | (list (string-append #$inetutils "/libexec/syslogd") | |
898 | "--no-detach" "--rcfile" #$config-file))) | |
899 | (stop #~(make-kill-destructor)))))) | |
be1c2c54 LC |
900 | |
901 | ;; Snippet adapted from the GNU inetutils manual. | |
902 | (define %default-syslog.conf | |
903 | (plain-file "syslog.conf" " | |
1f3fc60d | 904 | # Log all error messages, authentication messages of |
db4fdc04 LC |
905 | # level notice or higher and anything of level err or |
906 | # higher to the console. | |
907 | # Don't log private authentication messages! | |
6a191274 | 908 | *.alert;auth.notice;authpriv.none /dev/console |
db4fdc04 LC |
909 | |
910 | # Log anything (except mail) of level info or higher. | |
911 | # Don't log private authentication messages! | |
912 | *.info;mail.none;authpriv.none /var/log/messages | |
913 | ||
914 | # Same, in a different place. | |
915 | *.info;mail.none;authpriv.none /dev/tty12 | |
916 | ||
917 | # The authpriv file has restricted access. | |
918 | authpriv.* /var/log/secure | |
919 | ||
920 | # Log all the mail messages in one place. | |
921 | mail.* /var/log/maillog | |
be1c2c54 | 922 | ")) |
0adfe95a | 923 | |
be1c2c54 | 924 | (define* (syslog-service #:key (config-file %default-syslog.conf)) |
44abcb28 LC |
925 | "Return a service that runs @command{syslogd}. If configuration file |
926 | name @var{config-file} is not specified, use some reasonable default | |
927 | settings. | |
928 | ||
929 | @xref{syslogd invocation,,, inetutils, GNU Inetutils}, for more | |
930 | information on the configuration file syntax." | |
0adfe95a | 931 | (service syslog-service-type config-file)) |
db4fdc04 | 932 | |
909147e4 RW |
933 | (define pam-limits-service-type |
934 | (let ((security-limits | |
935 | ;; Create /etc/security containing the provided "limits.conf" file. | |
936 | (lambda (limits-file) | |
937 | `(("security" | |
938 | ,(computed-file | |
939 | "security" | |
940 | #~(begin | |
941 | (mkdir #$output) | |
942 | (stat #$limits-file) | |
943 | (symlink #$limits-file | |
944 | (string-append #$output "/limits.conf")))))))) | |
945 | (pam-extension | |
946 | (lambda (pam) | |
947 | (let ((pam-limits (pam-entry | |
948 | (control "required") | |
949 | (module "pam_limits.so") | |
950 | (arguments '("conf=/etc/security/limits.conf"))))) | |
951 | (if (member (pam-service-name pam) | |
952 | '("login" "su" "slim")) | |
953 | (pam-service | |
954 | (inherit pam) | |
955 | (session (cons pam-limits | |
956 | (pam-service-session pam)))) | |
957 | pam))))) | |
958 | (service-type | |
959 | (name 'limits) | |
960 | (extensions | |
961 | (list (service-extension etc-service-type security-limits) | |
962 | (service-extension pam-root-service-type | |
963 | (lambda _ (list pam-extension)))))))) | |
964 | ||
965 | (define* (pam-limits-service #:optional (limits '())) | |
966 | "Return a service that makes selected programs respect the list of | |
967 | pam-limits-entry specified in LIMITS via pam_limits.so." | |
968 | (service pam-limits-service-type | |
969 | (plain-file "limits.conf" | |
970 | (string-join (map pam-limits-entry->string limits) | |
971 | "\n")))) | |
972 | ||
1c52181f LC |
973 | \f |
974 | ;;; | |
975 | ;;; Guix services. | |
976 | ;;; | |
977 | ||
db4fdc04 | 978 | (define* (guix-build-accounts count #:key |
ab6a279a | 979 | (group "guixbuild") |
db4fdc04 | 980 | (first-uid 30001) |
db4fdc04 LC |
981 | (shadow shadow)) |
982 | "Return a list of COUNT user accounts for Guix build users, with UIDs | |
983 | starting at FIRST-UID, and under GID." | |
5250a4f2 LC |
984 | (unfold (cut > <> count) |
985 | (lambda (n) | |
986 | (user-account | |
987 | (name (format #f "guixbuilder~2,'0d" n)) | |
988 | (system? #t) | |
989 | (uid (+ first-uid n -1)) | |
990 | (group group) | |
991 | ||
992 | ;; guix-daemon expects GROUP to be listed as a | |
993 | ;; supplementary group too: | |
994 | ;; <http://lists.gnu.org/archive/html/bug-guix/2013-01/msg00239.html>. | |
995 | (supplementary-groups (list group "kvm")) | |
996 | ||
997 | (comment (format #f "Guix Build User ~2d" n)) | |
998 | (home-directory "/var/empty") | |
999 | (shell #~(string-append #$shadow "/sbin/nologin")))) | |
1000 | 1+ | |
1001 | 1)) | |
db4fdc04 | 1002 | |
5b58c28b LC |
1003 | (define (hydra-key-authorization key guix) |
1004 | "Return a gexp with code to register KEY, a file containing a 'guix archive' | |
1005 | public key, with GUIX." | |
2c5c696c LC |
1006 | #~(unless (file-exists? "/etc/guix/acl") |
1007 | (let ((pid (primitive-fork))) | |
1008 | (case pid | |
1009 | ((0) | |
5b58c28b | 1010 | (let* ((key #$key) |
2c5c696c LC |
1011 | (port (open-file key "r0b"))) |
1012 | (format #t "registering public key '~a'...~%" key) | |
1013 | (close-port (current-input-port)) | |
2c5c696c LC |
1014 | (dup port 0) |
1015 | (execl (string-append #$guix "/bin/guix") | |
1016 | "guix" "archive" "--authorize") | |
1017 | (exit 1))) | |
1018 | (else | |
1019 | (let ((status (cdr (waitpid pid)))) | |
1020 | (unless (zero? status) | |
1021 | (format (current-error-port) "warning: \ | |
1022 | failed to register hydra.gnu.org public key: ~a~%" status)))))))) | |
1023 | ||
5b58c28b LC |
1024 | (define %default-authorized-guix-keys |
1025 | ;; List of authorized substitute keys. | |
1026 | (list #~(string-append #$guix "/share/guix/hydra.gnu.org.pub"))) | |
1027 | ||
0adfe95a LC |
1028 | (define-record-type* <guix-configuration> |
1029 | guix-configuration make-guix-configuration | |
1030 | guix-configuration? | |
1031 | (guix guix-configuration-guix ;<package> | |
1032 | (default guix)) | |
1033 | (build-group guix-configuration-build-group ;string | |
1034 | (default "guixbuild")) | |
1035 | (build-accounts guix-configuration-build-accounts ;integer | |
1036 | (default 10)) | |
1037 | (authorize-key? guix-configuration-authorize-key? ;Boolean | |
1038 | (default #t)) | |
5b58c28b LC |
1039 | (authorized-keys guix-configuration-authorized-keys ;list of gexps |
1040 | (default %default-authorized-guix-keys)) | |
0adfe95a LC |
1041 | (use-substitutes? guix-configuration-use-substitutes? ;Boolean |
1042 | (default #t)) | |
b0b9f6e0 LC |
1043 | (substitute-urls guix-configuration-substitute-urls ;list of strings |
1044 | (default %default-substitute-urls)) | |
0adfe95a LC |
1045 | (extra-options guix-configuration-extra-options ;list of strings |
1046 | (default '())) | |
1047 | (lsof guix-configuration-lsof ;<package> | |
1048 | (default lsof)) | |
1049 | (lsh guix-configuration-lsh ;<package> | |
1050 | (default lsh))) | |
1051 | ||
1052 | (define %default-guix-configuration | |
1053 | (guix-configuration)) | |
1054 | ||
d4053c71 AK |
1055 | (define (guix-shepherd-service config) |
1056 | "Return a <shepherd-service> for the Guix daemon service with CONFIG." | |
0adfe95a | 1057 | (match config |
5b58c28b LC |
1058 | (($ <guix-configuration> guix build-group build-accounts |
1059 | authorize-key? keys | |
b0b9f6e0 LC |
1060 | use-substitutes? substitute-urls extra-options |
1061 | lsof lsh) | |
d4053c71 | 1062 | (list (shepherd-service |
0adfe95a LC |
1063 | (documentation "Run the Guix daemon.") |
1064 | (provision '(guix-daemon)) | |
1065 | (requirement '(user-processes)) | |
1066 | (start | |
1067 | #~(make-forkexec-constructor | |
1068 | (list (string-append #$guix "/bin/guix-daemon") | |
1069 | "--build-users-group" #$build-group | |
1070 | #$@(if use-substitutes? | |
1071 | '() | |
1072 | '("--no-substitutes")) | |
b0b9f6e0 | 1073 | "--substitute-urls" #$(string-join substitute-urls) |
0adfe95a LC |
1074 | #$@extra-options) |
1075 | ||
1076 | ;; Add 'lsof' (for the GC) and 'lsh' (for offloading) to the | |
1077 | ;; daemon's $PATH. | |
1078 | #:environment-variables | |
1079 | (list (string-append "PATH=" #$lsof "/bin:" #$lsh "/bin")))) | |
1080 | (stop #~(make-kill-destructor))))))) | |
1081 | ||
1082 | (define (guix-accounts config) | |
1083 | "Return the user accounts and user groups for CONFIG." | |
1084 | (match config | |
1085 | (($ <guix-configuration> _ build-group build-accounts) | |
1086 | (cons (user-group | |
1087 | (name build-group) | |
1088 | (system? #t) | |
1089 | ||
1090 | ;; Use a fixed GID so that we can create the store with the right | |
1091 | ;; owner. | |
1092 | (id 30000)) | |
1093 | (guix-build-accounts build-accounts | |
1094 | #:group build-group))))) | |
1095 | ||
1096 | (define (guix-activation config) | |
1097 | "Return the activation gexp for CONFIG." | |
1098 | (match config | |
5b58c28b | 1099 | (($ <guix-configuration> guix build-group build-accounts authorize-key? keys) |
0adfe95a LC |
1100 | ;; Assume that the store has BUILD-GROUP as its group. We could |
1101 | ;; otherwise call 'chown' here, but the problem is that on a COW unionfs, | |
1102 | ;; chown leads to an entire copy of the tree, which is a bad idea. | |
1103 | ||
1104 | ;; Optionally authorize hydra.gnu.org's key. | |
5f4a446d | 1105 | (if authorize-key? |
5b58c28b LC |
1106 | #~(begin |
1107 | #$@(map (cut hydra-key-authorization <> guix) keys)) | |
5f4a446d | 1108 | #~#f)))) |
0adfe95a LC |
1109 | |
1110 | (define guix-service-type | |
1111 | (service-type | |
1112 | (name 'guix) | |
1113 | (extensions | |
d4053c71 | 1114 | (list (service-extension shepherd-root-service-type guix-shepherd-service) |
0adfe95a | 1115 | (service-extension account-service-type guix-accounts) |
9a8b9eb8 LC |
1116 | (service-extension activation-service-type guix-activation) |
1117 | (service-extension profile-service-type | |
1118 | (compose list guix-configuration-guix)))))) | |
0adfe95a LC |
1119 | |
1120 | (define* (guix-service #:optional (config %default-guix-configuration)) | |
1121 | "Return a service that runs the Guix build daemon according to | |
1122 | @var{config}." | |
1123 | (service guix-service-type config)) | |
1124 | ||
1c52181f LC |
1125 | |
1126 | (define-record-type* <guix-publish-configuration> | |
1127 | guix-publish-configuration make-guix-publish-configuration | |
1128 | guix-publish-configuration? | |
1129 | (guix guix-publish-configuration-guix ;package | |
1130 | (default guix)) | |
1131 | (port guix-publish-configuration-port ;number | |
1132 | (default 80)) | |
1133 | (host guix-publish-configuration-host ;string | |
1134 | (default "localhost"))) | |
1135 | ||
d4053c71 | 1136 | (define guix-publish-shepherd-service |
1c52181f LC |
1137 | (match-lambda |
1138 | (($ <guix-publish-configuration> guix port host) | |
d4053c71 | 1139 | (list (shepherd-service |
1c52181f LC |
1140 | (provision '(guix-publish)) |
1141 | (requirement '(guix-daemon)) | |
1142 | (start #~(make-forkexec-constructor | |
1143 | (list (string-append #$guix "/bin/guix") | |
1144 | "publish" "-u" "guix-publish" | |
1145 | "-p" #$(number->string port) | |
1146 | (string-append "--listen=" #$host)))) | |
1147 | (stop #~(make-kill-destructor))))))) | |
1148 | ||
1149 | (define %guix-publish-accounts | |
1150 | (list (user-group (name "guix-publish") (system? #t)) | |
1151 | (user-account | |
1152 | (name "guix-publish") | |
1153 | (group "guix-publish") | |
1154 | (system? #t) | |
1155 | (comment "guix publish user") | |
1156 | (home-directory "/var/empty") | |
1157 | (shell #~(string-append #$shadow "/sbin/nologin"))))) | |
1158 | ||
1159 | (define guix-publish-service-type | |
1160 | (service-type (name 'guix-publish) | |
1161 | (extensions | |
d4053c71 AK |
1162 | (list (service-extension shepherd-root-service-type |
1163 | guix-publish-shepherd-service) | |
1c52181f LC |
1164 | (service-extension account-service-type |
1165 | (const %guix-publish-accounts)))))) | |
1166 | ||
1167 | (define* (guix-publish-service #:key (guix guix) (port 80) (host "localhost")) | |
1168 | "Return a service that runs @command{guix publish} listening on @var{host} | |
1169 | and @var{port} (@pxref{Invoking guix publish}). | |
1170 | ||
1171 | This assumes that @file{/etc/guix} already contains a signing key pair as | |
1172 | created by @command{guix archive --generate-key} (@pxref{Invoking guix | |
1173 | archive}). If that is not the case, the service will fail to start." | |
1174 | (service guix-publish-service-type | |
1175 | (guix-publish-configuration (guix guix) (port port) (host host)))) | |
1176 | ||
0adfe95a LC |
1177 | \f |
1178 | ;;; | |
1179 | ;;; Udev. | |
1180 | ;;; | |
1181 | ||
1182 | (define-record-type* <udev-configuration> | |
1183 | udev-configuration make-udev-configuration | |
1184 | udev-configuration? | |
1185 | (udev udev-configuration-udev ;<package> | |
1186 | (default udev)) | |
1187 | (rules udev-configuration-rules ;list of <package> | |
1188 | (default '()))) | |
db4fdc04 | 1189 | |
ecd06ca9 LC |
1190 | (define (udev-rules-union packages) |
1191 | "Return the union of the @code{lib/udev/rules.d} directories found in each | |
1192 | item of @var{packages}." | |
1193 | (define build | |
4ee96a79 LC |
1194 | (with-imported-modules '((guix build union) |
1195 | (guix build utils)) | |
1196 | #~(begin | |
1197 | (use-modules (guix build union) | |
1198 | (guix build utils) | |
1199 | (srfi srfi-1) | |
1200 | (srfi srfi-26)) | |
ecd06ca9 | 1201 | |
4ee96a79 LC |
1202 | (define %standard-locations |
1203 | '("/lib/udev/rules.d" "/libexec/udev/rules.d")) | |
ecd06ca9 | 1204 | |
4ee96a79 LC |
1205 | (define (rules-sub-directory directory) |
1206 | ;; Return the sub-directory of DIRECTORY containing udev rules, or | |
1207 | ;; #f if none was found. | |
1208 | (find directory-exists? | |
1209 | (map (cut string-append directory <>) %standard-locations))) | |
ecd06ca9 | 1210 | |
4ee96a79 LC |
1211 | (mkdir-p (string-append #$output "/lib/udev")) |
1212 | (union-build (string-append #$output "/lib/udev/rules.d") | |
1213 | (filter-map rules-sub-directory '#$packages))))) | |
ecd06ca9 | 1214 | |
4ee96a79 | 1215 | (computed-file "udev-rules" build)) |
ecd06ca9 | 1216 | |
80e6f37e RW |
1217 | (define (udev-rule file-name contents) |
1218 | "Return a directory with a udev rule file FILE-NAME containing CONTENTS." | |
1219 | (computed-file file-name | |
4ee96a79 LC |
1220 | (with-imported-modules '((guix build utils)) |
1221 | #~(begin | |
1222 | (use-modules (guix build utils)) | |
1223 | ||
1224 | (define rules.d | |
1225 | (string-append #$output "/lib/udev/rules.d")) | |
1226 | ||
1227 | (mkdir-p rules.d) | |
1228 | (call-with-output-file | |
1229 | (string-append rules.d "/" #$file-name) | |
1230 | (lambda (port) | |
1231 | (display #$contents port))))))) | |
7f28bf9a | 1232 | |
80e6f37e RW |
1233 | (define kvm-udev-rule |
1234 | ;; Return a directory with a udev rule that changes the group of /dev/kvm to | |
1235 | ;; "kvm" and makes it #o660. Apparently QEMU-KVM used to ship this rule, | |
1236 | ;; but now we have to add it by ourselves. | |
1237 | ||
1238 | ;; Build users are part of the "kvm" group, so we can fearlessly make | |
1239 | ;; /dev/kvm 660 (see <http://bugs.gnu.org/18994>, for background.) | |
1240 | (udev-rule "90-kvm.rules" | |
1241 | "KERNEL==\"kvm\", GROUP=\"kvm\", MODE=\"0660\"\n")) | |
1242 | ||
d4053c71 AK |
1243 | (define udev-shepherd-service |
1244 | ;; Return a <shepherd-service> for UDEV with RULES. | |
0adfe95a LC |
1245 | (match-lambda |
1246 | (($ <udev-configuration> udev rules) | |
80e6f37e | 1247 | (let* ((rules (udev-rules-union (cons* udev kvm-udev-rule rules))) |
0adfe95a LC |
1248 | (udev.conf (computed-file "udev.conf" |
1249 | #~(call-with-output-file #$output | |
1250 | (lambda (port) | |
1251 | (format port | |
1252 | "udev_rules=\"~a/lib/udev/rules.d\"\n" | |
1253 | #$rules)))))) | |
1254 | (list | |
d4053c71 | 1255 | (shepherd-service |
0adfe95a LC |
1256 | (provision '(udev)) |
1257 | ||
1258 | ;; Udev needs /dev to be a 'devtmpfs' mount so that new device nodes can | |
1259 | ;; be added: see | |
1260 | ;; <http://www.linuxfromscratch.org/lfs/view/development/chapter07/udev.html>. | |
1261 | (requirement '(root-file-system)) | |
1262 | ||
1263 | (documentation "Populate the /dev directory, dynamically.") | |
1264 | (start #~(lambda () | |
1265 | (define find | |
1266 | (@ (srfi srfi-1) find)) | |
1267 | ||
1268 | (define udevd | |
1269 | ;; Choose the right 'udevd'. | |
1270 | (find file-exists? | |
1271 | (map (lambda (suffix) | |
1272 | (string-append #$udev suffix)) | |
1273 | '("/libexec/udev/udevd" ;udev | |
1274 | "/sbin/udevd")))) ;eudev | |
1275 | ||
1276 | (define (wait-for-udevd) | |
1277 | ;; Wait until someone's listening on udevd's control | |
1278 | ;; socket. | |
1279 | (let ((sock (socket AF_UNIX SOCK_SEQPACKET 0))) | |
1280 | (let try () | |
1281 | (catch 'system-error | |
1282 | (lambda () | |
1283 | (connect sock PF_UNIX "/run/udev/control") | |
1284 | (close-port sock)) | |
1285 | (lambda args | |
1286 | (format #t "waiting for udevd...~%") | |
1287 | (usleep 500000) | |
1288 | (try)))))) | |
1289 | ||
1290 | ;; Allow udev to find the modules. | |
1291 | (setenv "LINUX_MODULE_DIRECTORY" | |
1292 | "/run/booted-system/kernel/lib/modules") | |
1293 | ||
1294 | ;; The first one is for udev, the second one for eudev. | |
1295 | (setenv "UDEV_CONFIG_FILE" #$udev.conf) | |
1296 | (setenv "EUDEV_RULES_DIRECTORY" | |
1297 | (string-append #$rules "/lib/udev/rules.d")) | |
1298 | ||
1299 | (let ((pid (primitive-fork))) | |
1300 | (case pid | |
1301 | ((0) | |
1302 | (exec-command (list udevd))) | |
1303 | (else | |
1304 | ;; Wait until udevd is up and running. This | |
1305 | ;; appears to be needed so that the events | |
1306 | ;; triggered below are actually handled. | |
1307 | (wait-for-udevd) | |
1308 | ||
1309 | ;; Trigger device node creation. | |
1310 | (system* (string-append #$udev "/bin/udevadm") | |
1311 | "trigger" "--action=add") | |
1312 | ||
1313 | ;; Wait for things to settle down. | |
1314 | (system* (string-append #$udev "/bin/udevadm") | |
1315 | "settle") | |
1316 | pid))))) | |
1317 | (stop #~(make-kill-destructor)) | |
1318 | ||
1319 | ;; When halting the system, 'udev' is actually killed by | |
1320 | ;; 'user-processes', i.e., before its own 'stop' method was called. | |
1321 | ;; Thus, make sure it is not respawned. | |
1322 | (respawn? #f))))))) | |
1323 | ||
1324 | (define udev-service-type | |
1325 | (service-type (name 'udev) | |
1326 | (extensions | |
d4053c71 AK |
1327 | (list (service-extension shepherd-root-service-type |
1328 | udev-shepherd-service))) | |
0adfe95a LC |
1329 | |
1330 | (compose concatenate) ;concatenate the list of rules | |
1331 | (extend (lambda (config rules) | |
1332 | (match config | |
1333 | (($ <udev-configuration> udev initial-rules) | |
1334 | (udev-configuration | |
1335 | (udev udev) | |
1336 | (rules (append initial-rules rules))))))))) | |
1337 | ||
255f7308 | 1338 | (define* (udev-service #:key (udev eudev) (rules '())) |
ecd06ca9 LC |
1339 | "Run @var{udev}, which populates the @file{/dev} directory dynamically. Get |
1340 | extra rules from the packages listed in @var{rules}." | |
0adfe95a LC |
1341 | (service udev-service-type |
1342 | (udev-configuration (udev udev) (rules rules)))) | |
1343 | ||
0adfe95a | 1344 | (define swap-service-type |
d4053c71 | 1345 | (shepherd-service-type |
00184239 | 1346 | 'swap |
0adfe95a LC |
1347 | (lambda (device) |
1348 | (define requirement | |
1349 | (if (string-prefix? "/dev/mapper/" device) | |
1350 | (list (symbol-append 'device-mapping- | |
1351 | (string->symbol (basename device)))) | |
1352 | '())) | |
1353 | ||
d4053c71 | 1354 | (shepherd-service |
0adfe95a LC |
1355 | (provision (list (symbol-append 'swap- (string->symbol device)))) |
1356 | (requirement `(udev ,@requirement)) | |
1357 | (documentation "Enable the given swap device.") | |
1358 | (start #~(lambda () | |
1359 | (restart-on-EINTR (swapon #$device)) | |
1360 | #t)) | |
1361 | (stop #~(lambda _ | |
1362 | (restart-on-EINTR (swapoff #$device)) | |
1363 | #f)) | |
1364 | (respawn? #f))))) | |
5dae0186 | 1365 | |
2a13d05e LC |
1366 | (define (swap-service device) |
1367 | "Return a service that uses @var{device} as a swap device." | |
0adfe95a | 1368 | (service swap-service-type device)) |
2a13d05e | 1369 | |
8664cc88 LC |
1370 | (define-record-type* <gpm-configuration> |
1371 | gpm-configuration make-gpm-configuration gpm-configuration? | |
1372 | (gpm gpm-configuration-gpm) ;package | |
1373 | (options gpm-configuration-options)) ;list of strings | |
1374 | ||
d4053c71 | 1375 | (define gpm-shepherd-service |
8664cc88 | 1376 | (match-lambda |
a907d997 | 1377 | (($ <gpm-configuration> gpm options) |
d4053c71 | 1378 | (list (shepherd-service |
8664cc88 LC |
1379 | (requirement '(udev)) |
1380 | (provision '(gpm)) | |
1381 | (start #~(lambda () | |
1382 | ;; 'gpm' runs in the background and sets a PID file. | |
1383 | ;; Note that it requires running as "root". | |
1384 | (false-if-exception (delete-file "/var/run/gpm.pid")) | |
1385 | (fork+exec-command (list (string-append #$gpm "/sbin/gpm") | |
1386 | #$@options)) | |
1387 | ||
1388 | ;; Wait for the PID file to appear; declare failure if | |
1389 | ;; it doesn't show up. | |
1390 | (let loop ((i 3)) | |
1391 | (or (file-exists? "/var/run/gpm.pid") | |
1392 | (if (zero? i) | |
1393 | #f | |
1394 | (begin | |
1395 | (sleep 1) | |
1396 | (loop (1- i)))))))) | |
1397 | ||
1398 | (stop #~(lambda (_) | |
1399 | ;; Return #f if successfully stopped. | |
1400 | (not (zero? (system* (string-append #$gpm "/sbin/gpm") | |
1401 | "-k")))))))))) | |
1402 | ||
1403 | (define gpm-service-type | |
1404 | (service-type (name 'gpm) | |
1405 | (extensions | |
d4053c71 AK |
1406 | (list (service-extension shepherd-root-service-type |
1407 | gpm-shepherd-service))))) | |
8664cc88 LC |
1408 | |
1409 | (define* (gpm-service #:key (gpm gpm) | |
1410 | (options '("-m" "/dev/input/mice" "-t" "ps2"))) | |
1411 | "Run @var{gpm}, the general-purpose mouse daemon, with the given | |
1412 | command-line @var{options}. GPM allows users to use the mouse in the console, | |
1413 | notably to select, copy, and paste text. The default value of @var{options} | |
1414 | uses the @code{ps2} protocol, which works for both USB and PS/2 mice. | |
1415 | ||
1416 | This service is not part of @var{%base-services}." | |
1417 | ;; To test in QEMU, use "-usbdevice mouse" and then, in the monitor, use | |
1418 | ;; "info mice" and "mouse_set X" to use the right mouse. | |
1419 | (service gpm-service-type | |
1420 | (gpm-configuration (gpm gpm) (options options)))) | |
1421 | ||
1422 | \f | |
8b198abe LC |
1423 | (define %base-services |
1424 | ;; Convenience variable holding the basic services. | |
ce8a6dfc | 1425 | (let ((motd (plain-file "motd" " |
8b198abe | 1426 | This is the GNU operating system, welcome!\n\n"))) |
62ca0fdf LC |
1427 | (list (console-font-service "tty1") |
1428 | (console-font-service "tty2") | |
1429 | (console-font-service "tty3") | |
1430 | (console-font-service "tty4") | |
1431 | (console-font-service "tty5") | |
1432 | (console-font-service "tty6") | |
1433 | ||
66e4f01c LC |
1434 | (mingetty-service (mingetty-configuration |
1435 | (tty "tty1") (motd motd))) | |
1436 | (mingetty-service (mingetty-configuration | |
1437 | (tty "tty2") (motd motd))) | |
1438 | (mingetty-service (mingetty-configuration | |
1439 | (tty "tty3") (motd motd))) | |
1440 | (mingetty-service (mingetty-configuration | |
1441 | (tty "tty4") (motd motd))) | |
1442 | (mingetty-service (mingetty-configuration | |
1443 | (tty "tty5") (motd motd))) | |
1444 | (mingetty-service (mingetty-configuration | |
1445 | (tty "tty6") (motd motd))) | |
1446 | ||
4a3b3b07 LC |
1447 | (static-networking-service "lo" "127.0.0.1" |
1448 | #:provision '(loopback)) | |
8b198abe | 1449 | (syslog-service) |
a535e122 | 1450 | (urandom-seed-service) |
8b198abe | 1451 | (guix-service) |
151a2c07 | 1452 | (nscd-service) |
ecd06ca9 | 1453 | |
52bd5734 LC |
1454 | ;; The LVM2 rules are needed as soon as LVM2 or the device-mapper is |
1455 | ;; used, so enable them by default. The FUSE and ALSA rules are | |
1456 | ;; less critical, but handy. | |
68ac258b | 1457 | (udev-service #:rules (list lvm2 fuse alsa-utils crda))))) |
8b198abe | 1458 | |
db4fdc04 | 1459 | ;;; base.scm ends here |