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