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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> |
4307c476 | 4 | ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org> |
e10964ef | 5 | ;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com> |
a535e122 | 6 | ;;; Copyright © 2016 Leo Famulari <leo@famulari.name> |
db4fdc04 LC |
7 | ;;; |
8 | ;;; This file is part of GNU Guix. | |
9 | ;;; | |
10 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
11 | ;;; under the terms of the GNU General Public License as published by | |
12 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
13 | ;;; your option) any later version. | |
14 | ;;; | |
15 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
16 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;;; GNU General Public License for more details. | |
19 | ;;; | |
20 | ;;; You should have received a copy of the GNU General Public License | |
21 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
22 | ||
23 | (define-module (gnu services base) | |
e87f0591 | 24 | #:use-module (guix store) |
db4fdc04 | 25 | #:use-module (gnu services) |
0190c1c0 | 26 | #:use-module (gnu services shepherd) |
4a3b3b07 | 27 | #:use-module (gnu services networking) |
6e828634 | 28 | #:use-module (gnu system pam) |
db4fdc04 | 29 | #:use-module (gnu system shadow) ; 'user-account', etc. |
0adfe95a | 30 | #:use-module (gnu system file-systems) ; 'file-system', etc. |
060d62a7 | 31 | #:use-module (gnu system mapped-devices) |
db4fdc04 | 32 | #:use-module (gnu packages admin) |
151a2c07 | 33 | #:use-module ((gnu packages linux) |
255f7308 | 34 | #:select (eudev kbd e2fsprogs lvm2 fuse alsa-utils crda gpm)) |
db4fdc04 | 35 | #:use-module ((gnu packages base) |
bdb36958 | 36 | #:select (canonical-package glibc)) |
db4fdc04 | 37 | #:use-module (gnu packages package-management) |
2d1d2dd8 LC |
38 | #:use-module (gnu packages lsh) |
39 | #:use-module (gnu packages lsof) | |
e2f4b305 | 40 | #:use-module ((gnu build file-systems) |
2c071ce9 | 41 | #:select (mount-flags->bit-mask)) |
b5f4e686 | 42 | #:use-module (guix gexp) |
6454b333 | 43 | #:use-module (guix records) |
db4fdc04 LC |
44 | #:use-module (srfi srfi-1) |
45 | #:use-module (srfi srfi-26) | |
6454b333 | 46 | #:use-module (ice-9 match) |
db4fdc04 | 47 | #:use-module (ice-9 format) |
e43e84ba LC |
48 | #:export (fstab-service-type |
49 | root-file-system-service | |
023f391c | 50 | file-system-service |
d6e2a622 | 51 | user-unmount-service |
2a13d05e | 52 | swap-service |
a00dd9fb | 53 | user-processes-service |
e10964ef SB |
54 | session-environment-service |
55 | session-environment-service-type | |
a00dd9fb | 56 | host-name-service |
5eca9459 | 57 | console-keymap-service |
62ca0fdf | 58 | console-font-service |
c797fabe RW |
59 | |
60 | udev-configuration | |
61 | udev-configuration? | |
62 | udev-configuration-rules | |
0adfe95a | 63 | udev-service-type |
151a2c07 | 64 | udev-service |
80e6f37e | 65 | udev-rule |
66e4f01c LC |
66 | |
67 | mingetty-configuration | |
68 | mingetty-configuration? | |
db4fdc04 | 69 | mingetty-service |
cd6f6c22 | 70 | mingetty-service-type |
6454b333 LC |
71 | |
72 | %nscd-default-caches | |
73 | %nscd-default-configuration | |
74 | ||
75 | nscd-configuration | |
76 | nscd-configuration? | |
77 | ||
78 | nscd-cache | |
79 | nscd-cache? | |
80 | ||
0adfe95a | 81 | nscd-service-type |
db4fdc04 LC |
82 | nscd-service |
83 | syslog-service | |
44abcb28 | 84 | %default-syslog.conf |
0adfe95a LC |
85 | |
86 | guix-configuration | |
87 | guix-configuration? | |
8b198abe | 88 | guix-service |
cd6f6c22 | 89 | guix-service-type |
1c52181f LC |
90 | guix-publish-configuration |
91 | guix-publish-configuration? | |
92 | guix-publish-service | |
93 | guix-publish-service-type | |
8664cc88 LC |
94 | gpm-service-type |
95 | gpm-service | |
0adfe95a | 96 | |
a535e122 LF |
97 | urandom-seed-service |
98 | ||
8b198abe | 99 | %base-services)) |
db4fdc04 LC |
100 | |
101 | ;;; Commentary: | |
102 | ;;; | |
103 | ;;; Base system services---i.e., services that 99% of the users will want to | |
104 | ;;; use. | |
105 | ;;; | |
106 | ;;; Code: | |
107 | ||
0adfe95a LC |
108 | \f |
109 | ;;; | |
110 | ;;; File systems. | |
111 | ;;; | |
a00dd9fb | 112 | |
e43e84ba LC |
113 | (define (file-system->fstab-entry file-system) |
114 | "Return a @file{/etc/fstab} entry for @var{file-system}." | |
115 | (string-append (case (file-system-title file-system) | |
116 | ((label) | |
117 | (string-append "LABEL=" (file-system-device file-system))) | |
118 | ((uuid) | |
119 | (string-append | |
120 | "UUID=" | |
121 | (uuid->string (file-system-device file-system)))) | |
122 | (else | |
123 | (file-system-device file-system))) | |
124 | "\t" | |
125 | (file-system-mount-point file-system) "\t" | |
126 | (file-system-type file-system) "\t" | |
127 | (or (file-system-options file-system) "defaults") "\t" | |
128 | ||
129 | ;; XXX: Omit the 'fs_freq' and 'fs_passno' fields because we | |
130 | ;; don't have anything sensible to put in there. | |
131 | )) | |
132 | ||
133 | (define (file-systems->fstab file-systems) | |
134 | "Return a @file{/etc} entry for an @file{fstab} describing | |
135 | @var{file-systems}." | |
136 | `(("fstab" ,(plain-file "fstab" | |
137 | (string-append | |
138 | "\ | |
139 | # This file was generated from your GuixSD configuration. Any changes | |
140 | # will be lost upon reboot or reconfiguration.\n\n" | |
141 | (string-join (map file-system->fstab-entry | |
142 | file-systems) | |
143 | "\n") | |
144 | "\n"))))) | |
145 | ||
146 | (define fstab-service-type | |
147 | ;; The /etc/fstab service. | |
148 | (service-type (name 'fstab) | |
149 | (extensions | |
150 | (list (service-extension etc-service-type | |
151 | file-systems->fstab))) | |
152 | (compose identity) | |
153 | (extend append))) | |
154 | ||
d4053c71 AK |
155 | (define %root-file-system-shepherd-service |
156 | (shepherd-service | |
be1c2c54 LC |
157 | (documentation "Take care of the root file system.") |
158 | (provision '(root-file-system)) | |
159 | (start #~(const #t)) | |
160 | (stop #~(lambda _ | |
161 | ;; Return #f if successfully stopped. | |
162 | (sync) | |
163 | ||
164 | (call-with-blocked-asyncs | |
165 | (lambda () | |
166 | (let ((null (%make-void-port "w"))) | |
34044d55 | 167 | ;; Close 'shepherd.log'. |
be1c2c54 | 168 | (display "closing log\n") |
34044d55 | 169 | ((@ (shepherd comm) stop-logging)) |
be1c2c54 LC |
170 | |
171 | ;; Redirect the default output ports.. | |
172 | (set-current-output-port null) | |
173 | (set-current-error-port null) | |
174 | ||
175 | ;; Close /dev/console. | |
176 | (for-each close-fdes '(0 1 2)) | |
177 | ||
178 | ;; At this point, there are no open files left, so the | |
179 | ;; root file system can be re-mounted read-only. | |
180 | (mount #f "/" #f | |
181 | (logior MS_REMOUNT MS_RDONLY) | |
182 | #:update-mtab? #f) | |
183 | ||
184 | #f))))) | |
185 | (respawn? #f))) | |
a00dd9fb | 186 | |
0adfe95a | 187 | (define root-file-system-service-type |
d4053c71 AK |
188 | (shepherd-service-type 'root-file-system |
189 | (const %root-file-system-shepherd-service))) | |
0adfe95a LC |
190 | |
191 | (define (root-file-system-service) | |
192 | "Return a service whose sole purpose is to re-mount read-only the root file | |
193 | system upon shutdown (aka. cleanly \"umounting\" root.) | |
194 | ||
195 | This service must be the root of the service dependency graph so that its | |
d4053c71 | 196 | 'stop' action is invoked when shepherd is the only process left." |
0adfe95a LC |
197 | (service root-file-system-service-type #f)) |
198 | ||
d4053c71 | 199 | (define (file-system->shepherd-service-name file-system) |
0adfe95a LC |
200 | "Return the symbol that denotes the service mounting and unmounting |
201 | FILE-SYSTEM." | |
202 | (symbol-append 'file-system- | |
203 | (string->symbol (file-system-mount-point file-system)))) | |
204 | ||
d4053c71 AK |
205 | (define (mapped-device->shepherd-service-name md) |
206 | "Return the symbol that denotes the shepherd service of MD, a <mapped-device>." | |
e502bf89 LC |
207 | (symbol-append 'device-mapping- |
208 | (string->symbol (mapped-device-target md)))) | |
209 | ||
d4053c71 | 210 | (define dependency->shepherd-service-name |
e502bf89 LC |
211 | (match-lambda |
212 | ((? mapped-device? md) | |
d4053c71 | 213 | (mapped-device->shepherd-service-name md)) |
e502bf89 | 214 | ((? file-system? fs) |
d4053c71 | 215 | (file-system->shepherd-service-name fs)))) |
e502bf89 | 216 | |
d4053c71 AK |
217 | (define (file-system-shepherd-service file-system) |
218 | "Return a list containing the shepherd service for @var{file-system}." | |
e43e84ba LC |
219 | (let ((target (file-system-mount-point file-system)) |
220 | (device (file-system-device file-system)) | |
221 | (type (file-system-type file-system)) | |
222 | (title (file-system-title file-system)) | |
223 | (check? (file-system-check? file-system)) | |
224 | (create? (file-system-create-mount-point? file-system)) | |
225 | (dependencies (file-system-dependencies file-system))) | |
be21979d LC |
226 | (if (file-system-mount? file-system) |
227 | (list | |
d4053c71 AK |
228 | (shepherd-service |
229 | (provision (list (file-system->shepherd-service-name file-system))) | |
be21979d | 230 | (requirement `(root-file-system |
d4053c71 | 231 | ,@(map dependency->shepherd-service-name dependencies))) |
be21979d LC |
232 | (documentation "Check, mount, and unmount the given file system.") |
233 | (start #~(lambda args | |
234 | ;; FIXME: Use or factorize with 'mount-file-system'. | |
235 | (let ((device (canonicalize-device-spec #$device '#$title)) | |
236 | (flags #$(mount-flags->bit-mask | |
237 | (file-system-flags file-system)))) | |
238 | #$(if create? | |
239 | #~(mkdir-p #$target) | |
240 | #~#t) | |
241 | #$(if check? | |
242 | #~(begin | |
243 | ;; Make sure fsck.ext2 & co. can be found. | |
244 | (setenv "PATH" | |
245 | (string-append | |
246 | #$e2fsprogs "/sbin:" | |
247 | "/run/current-system/profile/sbin:" | |
248 | (getenv "PATH"))) | |
249 | (check-file-system device #$type)) | |
250 | #~#t) | |
251 | ||
252 | (mount device #$target #$type flags | |
253 | #$(file-system-options file-system)) | |
254 | ||
255 | ;; For read-only bind mounts, an extra remount is | |
256 | ;; needed, as per <http://lwn.net/Articles/281157/>, | |
257 | ;; which still applies to Linux 4.0. | |
258 | (when (and (= MS_BIND (logand flags MS_BIND)) | |
259 | (= MS_RDONLY (logand flags MS_RDONLY))) | |
260 | (mount device #$target #$type | |
261 | (logior MS_BIND MS_REMOUNT MS_RDONLY)))) | |
262 | #t)) | |
263 | (stop #~(lambda args | |
264 | ;; Normally there are no processes left at this point, so | |
265 | ;; TARGET can be safely unmounted. | |
266 | ||
267 | ;; Make sure PID 1 doesn't keep TARGET busy. | |
268 | (chdir "/") | |
269 | ||
270 | (umount #$target) | |
271 | #f)) | |
272 | ||
273 | ;; We need an additional module. | |
274 | (modules `(((gnu build file-systems) | |
275 | #:select (check-file-system canonicalize-device-spec)) | |
276 | ,@%default-modules)) | |
277 | (imported-modules `((gnu build file-systems) | |
6eb43907 | 278 | (guix build bournish) |
be21979d LC |
279 | ,@%default-imported-modules)))) |
280 | '()))) | |
e43e84ba | 281 | |
0adfe95a LC |
282 | (define file-system-service-type |
283 | ;; TODO(?): Make this an extensible service that takes <file-system> objects | |
d4053c71 | 284 | ;; and returns a list of <shepherd-service>. |
e43e84ba LC |
285 | (service-type (name 'file-system) |
286 | (extensions | |
d4053c71 AK |
287 | (list (service-extension shepherd-root-service-type |
288 | file-system-shepherd-service) | |
e43e84ba LC |
289 | (service-extension fstab-service-type |
290 | identity))))) | |
0adfe95a LC |
291 | |
292 | (define* (file-system-service file-system) | |
293 | "Return a service that mounts @var{file-system}, a @code{<file-system>} | |
294 | object." | |
295 | (service file-system-service-type file-system)) | |
296 | ||
297 | (define user-unmount-service-type | |
d4053c71 | 298 | (shepherd-service-type |
5f44ee4f | 299 | 'user-file-systems |
0adfe95a | 300 | (lambda (known-mount-points) |
d4053c71 | 301 | (shepherd-service |
0adfe95a | 302 | (documentation "Unmount manually-mounted file systems.") |
5f44ee4f | 303 | (provision '(user-file-systems)) |
0adfe95a LC |
304 | (start #~(const #t)) |
305 | (stop #~(lambda args | |
306 | (define (known? mount-point) | |
307 | (member mount-point | |
308 | (cons* "/proc" "/sys" '#$known-mount-points))) | |
309 | ||
310 | ;; Make sure we don't keep the user's mount points busy. | |
311 | (chdir "/") | |
312 | ||
313 | (for-each (lambda (mount-point) | |
314 | (format #t "unmounting '~a'...~%" mount-point) | |
315 | (catch 'system-error | |
316 | (lambda () | |
317 | (umount mount-point)) | |
318 | (lambda args | |
319 | (let ((errno (system-error-errno args))) | |
320 | (format #t "failed to unmount '~a': ~a~%" | |
321 | mount-point (strerror errno)))))) | |
322 | (filter (negate known?) (mount-points))) | |
323 | #f)))))) | |
023f391c | 324 | |
d6e2a622 LC |
325 | (define (user-unmount-service known-mount-points) |
326 | "Return a service whose sole purpose is to unmount file systems not listed | |
327 | in KNOWN-MOUNT-POINTS when it is stopped." | |
0adfe95a | 328 | (service user-unmount-service-type known-mount-points)) |
d6e2a622 | 329 | |
7d57cfd3 LC |
330 | (define %do-not-kill-file |
331 | ;; Name of the file listing PIDs of processes that must survive when halting | |
332 | ;; the system. Typical example is user-space file systems. | |
b8c02c18 | 333 | "/etc/shepherd/do-not-kill") |
7d57cfd3 | 334 | |
0adfe95a | 335 | (define user-processes-service-type |
d4053c71 | 336 | (shepherd-service-type |
00184239 | 337 | 'user-processes |
0adfe95a LC |
338 | (match-lambda |
339 | ((requirements grace-delay) | |
d4053c71 | 340 | (shepherd-service |
0adfe95a LC |
341 | (documentation "When stopped, terminate all user processes.") |
342 | (provision '(user-processes)) | |
5f44ee4f | 343 | (requirement (cons* 'root-file-system 'user-file-systems |
d4053c71 | 344 | (map file-system->shepherd-service-name |
5f44ee4f | 345 | requirements))) |
0adfe95a LC |
346 | (start #~(const #t)) |
347 | (stop #~(lambda _ | |
348 | (define (kill-except omit signal) | |
349 | ;; Kill all the processes with SIGNAL except those listed | |
350 | ;; in OMIT and the current process. | |
351 | (let ((omit (cons (getpid) omit))) | |
352 | (for-each (lambda (pid) | |
353 | (unless (memv pid omit) | |
354 | (false-if-exception | |
355 | (kill pid signal)))) | |
356 | (processes)))) | |
357 | ||
358 | (define omitted-pids | |
359 | ;; List of PIDs that must not be killed. | |
360 | (if (file-exists? #$%do-not-kill-file) | |
361 | (map string->number | |
362 | (call-with-input-file #$%do-not-kill-file | |
363 | (compose string-tokenize | |
364 | (@ (ice-9 rdelim) read-string)))) | |
365 | '())) | |
366 | ||
367 | (define (now) | |
368 | (car (gettimeofday))) | |
369 | ||
370 | (define (sleep* n) | |
371 | ;; Really sleep N seconds. | |
372 | ;; Work around <http://bugs.gnu.org/19581>. | |
373 | (define start (now)) | |
374 | (let loop ((elapsed 0)) | |
375 | (when (> n elapsed) | |
376 | (sleep (- n elapsed)) | |
377 | (loop (- (now) start))))) | |
378 | ||
379 | (define lset= (@ (srfi srfi-1) lset=)) | |
380 | ||
381 | (display "sending all processes the TERM signal\n") | |
382 | ||
383 | (if (null? omitted-pids) | |
384 | (begin | |
385 | ;; Easy: terminate all of them. | |
386 | (kill -1 SIGTERM) | |
387 | (sleep* #$grace-delay) | |
388 | (kill -1 SIGKILL)) | |
389 | (begin | |
390 | ;; Kill them all except OMITTED-PIDS. XXX: We would | |
391 | ;; like to (kill -1 SIGSTOP) to get a fixed list of | |
392 | ;; processes, like 'killall5' does, but that seems | |
393 | ;; unreliable. | |
394 | (kill-except omitted-pids SIGTERM) | |
395 | (sleep* #$grace-delay) | |
396 | (kill-except omitted-pids SIGKILL) | |
397 | (delete-file #$%do-not-kill-file))) | |
398 | ||
399 | (let wait () | |
400 | (let ((pids (processes))) | |
401 | (unless (lset= = pids (cons 1 omitted-pids)) | |
402 | (format #t "waiting for process termination\ | |
403 | (processes left: ~s)~%" | |
404 | pids) | |
405 | (sleep* 2) | |
406 | (wait)))) | |
407 | ||
408 | (display "all processes have been terminated\n") | |
409 | #f)) | |
410 | (respawn? #f)))))) | |
411 | ||
412 | (define* (user-processes-service file-systems #:key (grace-delay 4)) | |
a00dd9fb LC |
413 | "Return the service that is responsible for terminating all the processes so |
414 | that the root file system can be re-mounted read-only, just before | |
415 | rebooting/halting. Processes still running GRACE-DELAY seconds after SIGTERM | |
416 | has been sent are terminated with SIGKILL. | |
417 | ||
d4053c71 | 418 | The returned service will depend on 'root-file-system' and on all the shepherd |
0adfe95a | 419 | services corresponding to FILE-SYSTEMS. |
023f391c | 420 | |
a00dd9fb LC |
421 | All the services that spawn processes must depend on this one so that they are |
422 | stopped before 'kill' is called." | |
0adfe95a | 423 | (service user-processes-service-type |
be21979d | 424 | (list (filter file-system-mount? file-systems) grace-delay))) |
d656c14e | 425 | |
0adfe95a | 426 | \f |
a535e122 LF |
427 | ;;; |
428 | ;;; Preserve entropy to seed /dev/urandom on boot. | |
429 | ;;; | |
430 | ||
431 | (define %random-seed-file | |
432 | "/var/lib/random-seed") | |
433 | ||
434 | (define %urandom-seed-activation | |
435 | ;; Activation gexp for the urandom seed | |
436 | #~(begin | |
437 | (use-modules (guix build utils)) | |
438 | ||
439 | (mkdir-p (dirname #$%random-seed-file)) | |
440 | (close-port (open-file #$%random-seed-file "a0b")) | |
441 | (chmod #$%random-seed-file #o600))) | |
442 | ||
443 | (define (urandom-seed-shepherd-service _) | |
444 | "Return a shepherd service for the /dev/urandom seed." | |
445 | (list (shepherd-service | |
446 | (documentation "Preserve entropy across reboots for /dev/urandom.") | |
447 | (provision '(urandom-seed)) | |
448 | (requirement '(user-processes)) | |
449 | (start #~(lambda _ | |
450 | ;; On boot, write random seed into /dev/urandom. | |
451 | (when (file-exists? #$%random-seed-file) | |
452 | (call-with-input-file #$%random-seed-file | |
453 | (lambda (seed) | |
454 | (call-with-output-file "/dev/urandom" | |
455 | (lambda (urandom) | |
456 | (dump-port seed urandom)))))) | |
457 | #t)) | |
458 | (stop #~(lambda _ | |
459 | ;; During shutdown, write from /dev/urandom into random seed. | |
460 | (let ((buf (make-bytevector 512))) | |
461 | (call-with-input-file "/dev/urandom" | |
462 | (lambda (urandom) | |
463 | (get-bytevector-n! urandom buf 0 512) | |
464 | (call-with-output-file #$%random-seed-file | |
465 | (lambda (seed) | |
466 | (put-bytevector seed buf))) | |
467 | #t))))) | |
468 | (modules `((rnrs bytevectors) | |
469 | (rnrs io ports) | |
470 | ,@%default-modules))))) | |
471 | ||
472 | (define urandom-seed-service-type | |
473 | (service-type (name 'urandom-seed) | |
474 | (extensions | |
475 | (list (service-extension shepherd-root-service-type | |
476 | urandom-seed-shepherd-service) | |
477 | (service-extension activation-service-type | |
478 | (const %urandom-seed-activation)))))) | |
479 | ||
480 | (define (urandom-seed-service) | |
481 | (service urandom-seed-service-type #f)) | |
482 | ||
483 | \f | |
e10964ef SB |
484 | ;;; |
485 | ;;; System-wide environment variables. | |
486 | ;;; | |
487 | ||
488 | (define (environment-variables->environment-file vars) | |
489 | "Return a file for pam_env(8) that contains environment variables VARS." | |
490 | (apply mixed-text-file "environment" | |
491 | (append-map (match-lambda | |
492 | ((key . value) | |
493 | (list key "=" value "\n"))) | |
494 | vars))) | |
495 | ||
496 | (define session-environment-service-type | |
497 | (service-type | |
498 | (name 'session-environment) | |
499 | (extensions | |
500 | (list (service-extension | |
501 | etc-service-type | |
502 | (lambda (vars) | |
503 | (list `("environment" | |
504 | ,(environment-variables->environment-file vars))))))) | |
505 | (compose concatenate) | |
506 | (extend append))) | |
507 | ||
508 | (define (session-environment-service vars) | |
509 | "Return a service that builds the @file{/etc/environment}, which can be read | |
510 | by PAM-aware applications to set environment variables for sessions. | |
511 | ||
512 | VARS should be an association list in which both the keys and the values are | |
513 | strings or string-valued gexps." | |
514 | (service session-environment-service-type vars)) | |
515 | ||
516 | \f | |
0adfe95a LC |
517 | ;;; |
518 | ;;; Console & co. | |
519 | ;;; | |
520 | ||
521 | (define host-name-service-type | |
d4053c71 | 522 | (shepherd-service-type |
00184239 | 523 | 'host-name |
0adfe95a | 524 | (lambda (name) |
d4053c71 | 525 | (shepherd-service |
0adfe95a LC |
526 | (documentation "Initialize the machine's host name.") |
527 | (provision '(host-name)) | |
528 | (start #~(lambda _ | |
529 | (sethostname #$name))) | |
530 | (respawn? #f))))) | |
a00dd9fb | 531 | |
db4fdc04 | 532 | (define (host-name-service name) |
51da7ca0 | 533 | "Return a service that sets the host name to @var{name}." |
0adfe95a | 534 | (service host-name-service-type name)) |
db4fdc04 | 535 | |
62ca0fdf LC |
536 | (define (unicode-start tty) |
537 | "Return a gexp to start Unicode support on @var{tty}." | |
538 | ||
539 | ;; We have to run 'unicode_start' in a pipe so that when it invokes the | |
540 | ;; 'tty' command, that command returns TTY. | |
541 | #~(begin | |
542 | (let ((pid (primitive-fork))) | |
543 | (case pid | |
544 | ((0) | |
545 | (close-fdes 0) | |
546 | (dup2 (open-fdes #$tty O_RDONLY) 0) | |
547 | (close-fdes 1) | |
548 | (dup2 (open-fdes #$tty O_WRONLY) 1) | |
549 | (execl (string-append #$kbd "/bin/unicode_start") | |
550 | "unicode_start")) | |
551 | (else | |
552 | (zero? (cdr (waitpid pid)))))))) | |
553 | ||
0adfe95a | 554 | (define console-keymap-service-type |
d4053c71 | 555 | (shepherd-service-type |
00184239 | 556 | 'console-keymap |
b3d05f48 | 557 | (lambda (files) |
d4053c71 | 558 | (shepherd-service |
0adfe95a LC |
559 | (documentation (string-append "Load console keymap (loadkeys).")) |
560 | (provision '(console-keymap)) | |
561 | (start #~(lambda _ | |
562 | (zero? (system* (string-append #$kbd "/bin/loadkeys") | |
b3d05f48 | 563 | #$@files)))) |
0adfe95a LC |
564 | (respawn? #f))))) |
565 | ||
b3d05f48 AK |
566 | (define (console-keymap-service . files) |
567 | "Return a service to load console keymaps from @var{files}." | |
568 | (service console-keymap-service-type files)) | |
0adfe95a LC |
569 | |
570 | (define console-font-service-type | |
d4053c71 | 571 | (shepherd-service-type |
00184239 | 572 | 'console-font |
0adfe95a LC |
573 | (match-lambda |
574 | ((tty font) | |
575 | (let ((device (string-append "/dev/" tty))) | |
d4053c71 | 576 | (shepherd-service |
0adfe95a LC |
577 | (documentation "Load a Unicode console font.") |
578 | (provision (list (symbol-append 'console-font- | |
579 | (string->symbol tty)))) | |
580 | ||
581 | ;; Start after mingetty has been started on TTY, otherwise the settings | |
582 | ;; are ignored. | |
583 | (requirement (list (symbol-append 'term- | |
584 | (string->symbol tty)))) | |
585 | ||
586 | (start #~(lambda _ | |
587 | (and #$(unicode-start device) | |
588 | (zero? | |
589 | (system* (string-append #$kbd "/bin/setfont") | |
590 | "-C" #$device #$font))))) | |
591 | (stop #~(const #t)) | |
592 | (respawn? #f))))))) | |
5eca9459 | 593 | |
62ca0fdf LC |
594 | (define* (console-font-service tty #:optional (font "LatGrkCyr-8x16")) |
595 | "Return a service that sets up Unicode support in @var{tty} and loads | |
596 | @var{font} for that tty (fonts are per virtual console in Linux.)" | |
597 | ;; Note: 'LatGrkCyr-8x16' has the advantage of providing three common | |
598 | ;; scripts as well as glyphs for em dash, quotation marks, and other Unicode | |
599 | ;; codepoints notably found in the UTF-8 manual. | |
0adfe95a | 600 | (service console-font-service-type (list tty font))) |
62ca0fdf | 601 | |
66e4f01c LC |
602 | (define-record-type* <mingetty-configuration> |
603 | mingetty-configuration make-mingetty-configuration | |
604 | mingetty-configuration? | |
605 | (mingetty mingetty-configuration-mingetty ;<package> | |
606 | (default mingetty)) | |
607 | (tty mingetty-configuration-tty) ;string | |
608 | (motd mingetty-configuration-motd ;file-like | |
609 | (default (plain-file "motd" "Welcome.\n"))) | |
610 | (auto-login mingetty-auto-login ;string | #f | |
611 | (default #f)) | |
612 | (login-program mingetty-login-program ;gexp | |
613 | (default #f)) | |
614 | (login-pause? mingetty-login-pause? ;Boolean | |
615 | (default #f)) | |
616 | ||
617 | ;; Allow empty passwords by default so that first-time users can log in when | |
618 | ;; the 'root' account has just been created. | |
619 | (allow-empty-passwords? mingetty-configuration-allow-empty-passwords? | |
620 | (default #t))) ;Boolean | |
621 | ||
0adfe95a LC |
622 | (define (mingetty-pam-service conf) |
623 | "Return the list of PAM service needed for CONF." | |
624 | ;; Let 'login' be known to PAM. All the mingetty services will have that | |
625 | ;; PAM service, but that's fine because they're all identical and duplicates | |
626 | ;; are removed. | |
627 | (list (unix-pam-service "login" | |
628 | #:allow-empty-passwords? | |
629 | (mingetty-configuration-allow-empty-passwords? conf) | |
630 | #:motd | |
631 | (mingetty-configuration-motd conf)))) | |
632 | ||
d4053c71 | 633 | (define mingetty-shepherd-service |
0adfe95a | 634 | (match-lambda |
66e4f01c LC |
635 | (($ <mingetty-configuration> mingetty tty motd auto-login login-program |
636 | login-pause? allow-empty-passwords?) | |
0adfe95a | 637 | (list |
d4053c71 | 638 | (shepherd-service |
0adfe95a LC |
639 | (documentation "Run mingetty on an tty.") |
640 | (provision (list (symbol-append 'term- (string->symbol tty)))) | |
641 | ||
642 | ;; Since the login prompt shows the host name, wait for the 'host-name' | |
643 | ;; service to be done. Also wait for udev essentially so that the tty | |
644 | ;; text is not lost in the middle of kernel messages (XXX). | |
645 | (requirement '(user-processes host-name udev)) | |
646 | ||
647 | (start #~(make-forkexec-constructor | |
648 | (list (string-append #$mingetty "/sbin/mingetty") | |
649 | "--noclear" #$tty | |
650 | #$@(if auto-login | |
651 | #~("--autologin" #$auto-login) | |
652 | #~()) | |
653 | #$@(if login-program | |
654 | #~("--loginprog" #$login-program) | |
655 | #~()) | |
656 | #$@(if login-pause? | |
657 | #~("--loginpause") | |
658 | #~())))) | |
659 | (stop #~(make-kill-destructor))))))) | |
660 | ||
661 | (define mingetty-service-type | |
662 | (service-type (name 'mingetty) | |
d4053c71 AK |
663 | (extensions (list (service-extension shepherd-root-service-type |
664 | mingetty-shepherd-service) | |
0adfe95a LC |
665 | (service-extension pam-root-service-type |
666 | mingetty-pam-service))))) | |
667 | ||
668 | (define* (mingetty-service config) | |
669 | "Return a service to run mingetty according to @var{config}, which specifies | |
670 | the tty to run, among other things." | |
671 | (service mingetty-service-type config)) | |
db4fdc04 | 672 | |
6454b333 LC |
673 | (define-record-type* <nscd-configuration> nscd-configuration |
674 | make-nscd-configuration | |
675 | nscd-configuration? | |
676 | (log-file nscd-configuration-log-file ;string | |
677 | (default "/var/log/nscd.log")) | |
678 | (debug-level nscd-debug-level ;integer | |
679 | (default 0)) | |
680 | ;; TODO: See nscd.conf in glibc for other options to add. | |
681 | (caches nscd-configuration-caches ;list of <nscd-cache> | |
b893f1ae LC |
682 | (default %nscd-default-caches)) |
683 | (name-services nscd-configuration-name-services ;list of <packages> | |
684 | (default '())) | |
685 | (glibc nscd-configuration-glibc ;<package> | |
686 | (default (canonical-package glibc)))) | |
6454b333 LC |
687 | |
688 | (define-record-type* <nscd-cache> nscd-cache make-nscd-cache | |
689 | nscd-cache? | |
690 | (database nscd-cache-database) ;symbol | |
691 | (positive-time-to-live nscd-cache-positive-time-to-live) ;integer | |
692 | (negative-time-to-live nscd-cache-negative-time-to-live | |
693 | (default 20)) ;integer | |
694 | (suggested-size nscd-cache-suggested-size ;integer ("default module | |
695 | ;of hash table") | |
696 | (default 211)) | |
697 | (check-files? nscd-cache-check-files? ;Boolean | |
698 | (default #t)) | |
699 | (persistent? nscd-cache-persistent? ;Boolean | |
700 | (default #t)) | |
701 | (shared? nscd-cache-shared? ;Boolean | |
702 | (default #t)) | |
703 | (max-database-size nscd-cache-max-database-size ;integer | |
704 | (default (* 32 (expt 2 20)))) | |
705 | (auto-propagate? nscd-cache-auto-propagate? ;Boolean | |
706 | (default #t))) | |
707 | ||
708 | (define %nscd-default-caches | |
709 | ;; Caches that we want to enable by default. Note that when providing an | |
710 | ;; empty nscd.conf, all caches are disabled. | |
711 | (list (nscd-cache (database 'hosts) | |
712 | ||
713 | ;; Aggressively cache the host name cache to improve | |
714 | ;; privacy and resilience. | |
715 | (positive-time-to-live (* 3600 12)) | |
716 | (negative-time-to-live 20) | |
717 | (persistent? #t)) | |
718 | ||
719 | (nscd-cache (database 'services) | |
720 | ||
721 | ;; Services are unlikely to change, so we can be even more | |
722 | ;; aggressive. | |
723 | (positive-time-to-live (* 3600 24)) | |
724 | (negative-time-to-live 3600) | |
725 | (check-files? #t) ;check /etc/services changes | |
726 | (persistent? #t)))) | |
727 | ||
728 | (define %nscd-default-configuration | |
729 | ;; Default nscd configuration. | |
730 | (nscd-configuration)) | |
731 | ||
732 | (define (nscd.conf-file config) | |
733 | "Return the @file{nscd.conf} configuration file for @var{config}, an | |
734 | @code{<nscd-configuration>} object." | |
735 | (define cache->config | |
736 | (match-lambda | |
be1c2c54 LC |
737 | (($ <nscd-cache> (= symbol->string database) |
738 | positive-ttl negative-ttl size check-files? | |
739 | persistent? shared? max-size propagate?) | |
740 | (string-append "\nenable-cache\t" database "\tyes\n" | |
741 | ||
742 | "positive-time-to-live\t" database "\t" | |
743 | (number->string positive-ttl) "\n" | |
744 | "negative-time-to-live\t" database "\t" | |
745 | (number->string negative-ttl) "\n" | |
746 | "suggested-size\t" database "\t" | |
747 | (number->string size) "\n" | |
748 | "check-files\t" database "\t" | |
749 | (if check-files? "yes\n" "no\n") | |
750 | "persistent\t" database "\t" | |
751 | (if persistent? "yes\n" "no\n") | |
752 | "shared\t" database "\t" | |
753 | (if shared? "yes\n" "no\n") | |
754 | "max-db-size\t" database "\t" | |
755 | (number->string max-size) "\n" | |
756 | "auto-propagate\t" database "\t" | |
757 | (if propagate? "yes\n" "no\n"))))) | |
6454b333 LC |
758 | |
759 | (match config | |
760 | (($ <nscd-configuration> log-file debug-level caches) | |
be1c2c54 LC |
761 | (plain-file "nscd.conf" |
762 | (string-append "\ | |
6454b333 | 763 | # Configuration of libc's name service cache daemon (nscd).\n\n" |
be1c2c54 LC |
764 | (if log-file |
765 | (string-append "logfile\t" log-file) | |
766 | "") | |
767 | "\n" | |
768 | (if debug-level | |
769 | (string-append "debug-level\t" | |
770 | (number->string debug-level)) | |
771 | "") | |
772 | "\n" | |
773 | (string-concatenate | |
774 | (map cache->config caches))))))) | |
6454b333 | 775 | |
d4053c71 AK |
776 | (define (nscd-shepherd-service config) |
777 | "Return a shepherd service for CONFIG, an <nscd-configuration> object." | |
0adfe95a LC |
778 | (let ((nscd.conf (nscd.conf-file config)) |
779 | (name-services (nscd-configuration-name-services config))) | |
d4053c71 | 780 | (list (shepherd-service |
0adfe95a LC |
781 | (documentation "Run libc's name service cache daemon (nscd).") |
782 | (provision '(nscd)) | |
783 | (requirement '(user-processes)) | |
784 | (start #~(make-forkexec-constructor | |
785 | (list (string-append #$(nscd-configuration-glibc config) | |
786 | "/sbin/nscd") | |
787 | "-f" #$nscd.conf "--foreground") | |
788 | ||
789 | #:environment-variables | |
790 | (list (string-append "LD_LIBRARY_PATH=" | |
791 | (string-join | |
792 | (map (lambda (dir) | |
793 | (string-append dir "/lib")) | |
794 | (list #$@name-services)) | |
795 | ":"))))) | |
cc7234ae | 796 | (stop #~(make-kill-destructor)))))) |
0adfe95a LC |
797 | |
798 | (define nscd-activation | |
799 | ;; Actions to take before starting nscd. | |
800 | #~(begin | |
801 | (use-modules (guix build utils)) | |
802 | (mkdir-p "/var/run/nscd") | |
803 | (mkdir-p "/var/db/nscd"))) ;for the persistent cache | |
804 | ||
805 | (define nscd-service-type | |
806 | (service-type (name 'nscd) | |
807 | (extensions | |
808 | (list (service-extension activation-service-type | |
809 | (const nscd-activation)) | |
d4053c71 AK |
810 | (service-extension shepherd-root-service-type |
811 | nscd-shepherd-service))) | |
0adfe95a LC |
812 | |
813 | ;; This can be extended by providing additional name services | |
814 | ;; such as nss-mdns. | |
815 | (compose concatenate) | |
816 | (extend (lambda (config name-services) | |
817 | (nscd-configuration | |
818 | (inherit config) | |
819 | (name-services (append | |
820 | (nscd-configuration-name-services config) | |
821 | name-services))))))) | |
822 | ||
b893f1ae | 823 | (define* (nscd-service #:optional (config %nscd-default-configuration)) |
6454b333 | 824 | "Return a service that runs libc's name service cache daemon (nscd) with the |
b893f1ae LC |
825 | given @var{config}---an @code{<nscd-configuration>} object. @xref{Name |
826 | Service Switch}, for an example." | |
0adfe95a LC |
827 | (service nscd-service-type config)) |
828 | ||
829 | (define syslog-service-type | |
d4053c71 | 830 | (shepherd-service-type |
00184239 | 831 | 'syslog |
0adfe95a | 832 | (lambda (config-file) |
d4053c71 | 833 | (shepherd-service |
0adfe95a LC |
834 | (documentation "Run the syslog daemon (syslogd).") |
835 | (provision '(syslogd)) | |
836 | (requirement '(user-processes)) | |
837 | (start #~(make-forkexec-constructor | |
838 | (list (string-append #$inetutils "/libexec/syslogd") | |
839 | "--no-detach" "--rcfile" #$config-file))) | |
840 | (stop #~(make-kill-destructor)))))) | |
be1c2c54 LC |
841 | |
842 | ;; Snippet adapted from the GNU inetutils manual. | |
843 | (define %default-syslog.conf | |
844 | (plain-file "syslog.conf" " | |
1f3fc60d | 845 | # Log all error messages, authentication messages of |
db4fdc04 LC |
846 | # level notice or higher and anything of level err or |
847 | # higher to the console. | |
848 | # Don't log private authentication messages! | |
6a191274 | 849 | *.alert;auth.notice;authpriv.none /dev/console |
db4fdc04 LC |
850 | |
851 | # Log anything (except mail) of level info or higher. | |
852 | # Don't log private authentication messages! | |
853 | *.info;mail.none;authpriv.none /var/log/messages | |
854 | ||
855 | # Same, in a different place. | |
856 | *.info;mail.none;authpriv.none /dev/tty12 | |
857 | ||
858 | # The authpriv file has restricted access. | |
859 | authpriv.* /var/log/secure | |
860 | ||
861 | # Log all the mail messages in one place. | |
862 | mail.* /var/log/maillog | |
be1c2c54 | 863 | ")) |
0adfe95a | 864 | |
be1c2c54 | 865 | (define* (syslog-service #:key (config-file %default-syslog.conf)) |
44abcb28 LC |
866 | "Return a service that runs @command{syslogd}. If configuration file |
867 | name @var{config-file} is not specified, use some reasonable default | |
868 | settings. | |
869 | ||
870 | @xref{syslogd invocation,,, inetutils, GNU Inetutils}, for more | |
871 | information on the configuration file syntax." | |
0adfe95a | 872 | (service syslog-service-type config-file)) |
db4fdc04 | 873 | |
1c52181f LC |
874 | \f |
875 | ;;; | |
876 | ;;; Guix services. | |
877 | ;;; | |
878 | ||
db4fdc04 | 879 | (define* (guix-build-accounts count #:key |
ab6a279a | 880 | (group "guixbuild") |
db4fdc04 | 881 | (first-uid 30001) |
db4fdc04 LC |
882 | (shadow shadow)) |
883 | "Return a list of COUNT user accounts for Guix build users, with UIDs | |
884 | starting at FIRST-UID, and under GID." | |
5250a4f2 LC |
885 | (unfold (cut > <> count) |
886 | (lambda (n) | |
887 | (user-account | |
888 | (name (format #f "guixbuilder~2,'0d" n)) | |
889 | (system? #t) | |
890 | (uid (+ first-uid n -1)) | |
891 | (group group) | |
892 | ||
893 | ;; guix-daemon expects GROUP to be listed as a | |
894 | ;; supplementary group too: | |
895 | ;; <http://lists.gnu.org/archive/html/bug-guix/2013-01/msg00239.html>. | |
896 | (supplementary-groups (list group "kvm")) | |
897 | ||
898 | (comment (format #f "Guix Build User ~2d" n)) | |
899 | (home-directory "/var/empty") | |
900 | (shell #~(string-append #$shadow "/sbin/nologin")))) | |
901 | 1+ | |
902 | 1)) | |
db4fdc04 | 903 | |
2c5c696c LC |
904 | (define (hydra-key-authorization guix) |
905 | "Return a gexp with code to register the hydra.gnu.org public key with | |
906 | GUIX." | |
907 | #~(unless (file-exists? "/etc/guix/acl") | |
908 | (let ((pid (primitive-fork))) | |
909 | (case pid | |
910 | ((0) | |
911 | (let* ((key (string-append #$guix | |
912 | "/share/guix/hydra.gnu.org.pub")) | |
913 | (port (open-file key "r0b"))) | |
914 | (format #t "registering public key '~a'...~%" key) | |
915 | (close-port (current-input-port)) | |
2c5c696c LC |
916 | (dup port 0) |
917 | (execl (string-append #$guix "/bin/guix") | |
918 | "guix" "archive" "--authorize") | |
919 | (exit 1))) | |
920 | (else | |
921 | (let ((status (cdr (waitpid pid)))) | |
922 | (unless (zero? status) | |
923 | (format (current-error-port) "warning: \ | |
924 | failed to register hydra.gnu.org public key: ~a~%" status)))))))) | |
925 | ||
0adfe95a LC |
926 | (define-record-type* <guix-configuration> |
927 | guix-configuration make-guix-configuration | |
928 | guix-configuration? | |
929 | (guix guix-configuration-guix ;<package> | |
930 | (default guix)) | |
931 | (build-group guix-configuration-build-group ;string | |
932 | (default "guixbuild")) | |
933 | (build-accounts guix-configuration-build-accounts ;integer | |
934 | (default 10)) | |
935 | (authorize-key? guix-configuration-authorize-key? ;Boolean | |
936 | (default #t)) | |
937 | (use-substitutes? guix-configuration-use-substitutes? ;Boolean | |
938 | (default #t)) | |
b0b9f6e0 LC |
939 | (substitute-urls guix-configuration-substitute-urls ;list of strings |
940 | (default %default-substitute-urls)) | |
0adfe95a LC |
941 | (extra-options guix-configuration-extra-options ;list of strings |
942 | (default '())) | |
943 | (lsof guix-configuration-lsof ;<package> | |
944 | (default lsof)) | |
945 | (lsh guix-configuration-lsh ;<package> | |
946 | (default lsh))) | |
947 | ||
948 | (define %default-guix-configuration | |
949 | (guix-configuration)) | |
950 | ||
d4053c71 AK |
951 | (define (guix-shepherd-service config) |
952 | "Return a <shepherd-service> for the Guix daemon service with CONFIG." | |
0adfe95a LC |
953 | (match config |
954 | (($ <guix-configuration> guix build-group build-accounts authorize-key? | |
b0b9f6e0 LC |
955 | use-substitutes? substitute-urls extra-options |
956 | lsof lsh) | |
d4053c71 | 957 | (list (shepherd-service |
0adfe95a LC |
958 | (documentation "Run the Guix daemon.") |
959 | (provision '(guix-daemon)) | |
960 | (requirement '(user-processes)) | |
961 | (start | |
962 | #~(make-forkexec-constructor | |
963 | (list (string-append #$guix "/bin/guix-daemon") | |
964 | "--build-users-group" #$build-group | |
965 | #$@(if use-substitutes? | |
966 | '() | |
967 | '("--no-substitutes")) | |
b0b9f6e0 | 968 | "--substitute-urls" #$(string-join substitute-urls) |
0adfe95a LC |
969 | #$@extra-options) |
970 | ||
971 | ;; Add 'lsof' (for the GC) and 'lsh' (for offloading) to the | |
972 | ;; daemon's $PATH. | |
973 | #:environment-variables | |
974 | (list (string-append "PATH=" #$lsof "/bin:" #$lsh "/bin")))) | |
975 | (stop #~(make-kill-destructor))))))) | |
976 | ||
977 | (define (guix-accounts config) | |
978 | "Return the user accounts and user groups for CONFIG." | |
979 | (match config | |
980 | (($ <guix-configuration> _ build-group build-accounts) | |
981 | (cons (user-group | |
982 | (name build-group) | |
983 | (system? #t) | |
984 | ||
985 | ;; Use a fixed GID so that we can create the store with the right | |
986 | ;; owner. | |
987 | (id 30000)) | |
988 | (guix-build-accounts build-accounts | |
989 | #:group build-group))))) | |
990 | ||
991 | (define (guix-activation config) | |
992 | "Return the activation gexp for CONFIG." | |
993 | (match config | |
994 | (($ <guix-configuration> guix build-group build-accounts authorize-key?) | |
995 | ;; Assume that the store has BUILD-GROUP as its group. We could | |
996 | ;; otherwise call 'chown' here, but the problem is that on a COW unionfs, | |
997 | ;; chown leads to an entire copy of the tree, which is a bad idea. | |
998 | ||
999 | ;; Optionally authorize hydra.gnu.org's key. | |
1000 | (and authorize-key? | |
1001 | (hydra-key-authorization guix))))) | |
1002 | ||
1003 | (define guix-service-type | |
1004 | (service-type | |
1005 | (name 'guix) | |
1006 | (extensions | |
d4053c71 | 1007 | (list (service-extension shepherd-root-service-type guix-shepherd-service) |
0adfe95a | 1008 | (service-extension account-service-type guix-accounts) |
9a8b9eb8 LC |
1009 | (service-extension activation-service-type guix-activation) |
1010 | (service-extension profile-service-type | |
1011 | (compose list guix-configuration-guix)))))) | |
0adfe95a LC |
1012 | |
1013 | (define* (guix-service #:optional (config %default-guix-configuration)) | |
1014 | "Return a service that runs the Guix build daemon according to | |
1015 | @var{config}." | |
1016 | (service guix-service-type config)) | |
1017 | ||
1c52181f LC |
1018 | |
1019 | (define-record-type* <guix-publish-configuration> | |
1020 | guix-publish-configuration make-guix-publish-configuration | |
1021 | guix-publish-configuration? | |
1022 | (guix guix-publish-configuration-guix ;package | |
1023 | (default guix)) | |
1024 | (port guix-publish-configuration-port ;number | |
1025 | (default 80)) | |
1026 | (host guix-publish-configuration-host ;string | |
1027 | (default "localhost"))) | |
1028 | ||
d4053c71 | 1029 | (define guix-publish-shepherd-service |
1c52181f LC |
1030 | (match-lambda |
1031 | (($ <guix-publish-configuration> guix port host) | |
d4053c71 | 1032 | (list (shepherd-service |
1c52181f LC |
1033 | (provision '(guix-publish)) |
1034 | (requirement '(guix-daemon)) | |
1035 | (start #~(make-forkexec-constructor | |
1036 | (list (string-append #$guix "/bin/guix") | |
1037 | "publish" "-u" "guix-publish" | |
1038 | "-p" #$(number->string port) | |
1039 | (string-append "--listen=" #$host)))) | |
1040 | (stop #~(make-kill-destructor))))))) | |
1041 | ||
1042 | (define %guix-publish-accounts | |
1043 | (list (user-group (name "guix-publish") (system? #t)) | |
1044 | (user-account | |
1045 | (name "guix-publish") | |
1046 | (group "guix-publish") | |
1047 | (system? #t) | |
1048 | (comment "guix publish user") | |
1049 | (home-directory "/var/empty") | |
1050 | (shell #~(string-append #$shadow "/sbin/nologin"))))) | |
1051 | ||
1052 | (define guix-publish-service-type | |
1053 | (service-type (name 'guix-publish) | |
1054 | (extensions | |
d4053c71 AK |
1055 | (list (service-extension shepherd-root-service-type |
1056 | guix-publish-shepherd-service) | |
1c52181f LC |
1057 | (service-extension account-service-type |
1058 | (const %guix-publish-accounts)))))) | |
1059 | ||
1060 | (define* (guix-publish-service #:key (guix guix) (port 80) (host "localhost")) | |
1061 | "Return a service that runs @command{guix publish} listening on @var{host} | |
1062 | and @var{port} (@pxref{Invoking guix publish}). | |
1063 | ||
1064 | This assumes that @file{/etc/guix} already contains a signing key pair as | |
1065 | created by @command{guix archive --generate-key} (@pxref{Invoking guix | |
1066 | archive}). If that is not the case, the service will fail to start." | |
1067 | (service guix-publish-service-type | |
1068 | (guix-publish-configuration (guix guix) (port port) (host host)))) | |
1069 | ||
0adfe95a LC |
1070 | \f |
1071 | ;;; | |
1072 | ;;; Udev. | |
1073 | ;;; | |
1074 | ||
1075 | (define-record-type* <udev-configuration> | |
1076 | udev-configuration make-udev-configuration | |
1077 | udev-configuration? | |
1078 | (udev udev-configuration-udev ;<package> | |
1079 | (default udev)) | |
1080 | (rules udev-configuration-rules ;list of <package> | |
1081 | (default '()))) | |
db4fdc04 | 1082 | |
ecd06ca9 LC |
1083 | (define (udev-rules-union packages) |
1084 | "Return the union of the @code{lib/udev/rules.d} directories found in each | |
1085 | item of @var{packages}." | |
1086 | (define build | |
1087 | #~(begin | |
1088 | (use-modules (guix build union) | |
1089 | (guix build utils) | |
1090 | (srfi srfi-1) | |
1091 | (srfi srfi-26)) | |
1092 | ||
1093 | (define %standard-locations | |
1094 | '("/lib/udev/rules.d" "/libexec/udev/rules.d")) | |
1095 | ||
1096 | (define (rules-sub-directory directory) | |
1097 | ;; Return the sub-directory of DIRECTORY containing udev rules, or | |
1098 | ;; #f if none was found. | |
1099 | (find directory-exists? | |
1100 | (map (cut string-append directory <>) %standard-locations))) | |
1101 | ||
1102 | (mkdir-p (string-append #$output "/lib/udev")) | |
1103 | (union-build (string-append #$output "/lib/udev/rules.d") | |
1104 | (filter-map rules-sub-directory '#$packages)))) | |
1105 | ||
be1c2c54 LC |
1106 | (computed-file "udev-rules" build |
1107 | #:modules '((guix build union) | |
1108 | (guix build utils)))) | |
ecd06ca9 | 1109 | |
80e6f37e RW |
1110 | (define (udev-rule file-name contents) |
1111 | "Return a directory with a udev rule file FILE-NAME containing CONTENTS." | |
1112 | (computed-file file-name | |
be1c2c54 LC |
1113 | #~(begin |
1114 | (use-modules (guix build utils)) | |
1115 | ||
1116 | (define rules.d | |
1117 | (string-append #$output "/lib/udev/rules.d")) | |
1118 | ||
1119 | (mkdir-p rules.d) | |
1120 | (call-with-output-file | |
80e6f37e | 1121 | (string-append rules.d "/" #$file-name) |
be1c2c54 | 1122 | (lambda (port) |
80e6f37e | 1123 | (display #$contents port)))) |
be1c2c54 | 1124 | #:modules '((guix build utils)))) |
7f28bf9a | 1125 | |
80e6f37e RW |
1126 | (define kvm-udev-rule |
1127 | ;; Return a directory with a udev rule that changes the group of /dev/kvm to | |
1128 | ;; "kvm" and makes it #o660. Apparently QEMU-KVM used to ship this rule, | |
1129 | ;; but now we have to add it by ourselves. | |
1130 | ||
1131 | ;; Build users are part of the "kvm" group, so we can fearlessly make | |
1132 | ;; /dev/kvm 660 (see <http://bugs.gnu.org/18994>, for background.) | |
1133 | (udev-rule "90-kvm.rules" | |
1134 | "KERNEL==\"kvm\", GROUP=\"kvm\", MODE=\"0660\"\n")) | |
1135 | ||
d4053c71 AK |
1136 | (define udev-shepherd-service |
1137 | ;; Return a <shepherd-service> for UDEV with RULES. | |
0adfe95a LC |
1138 | (match-lambda |
1139 | (($ <udev-configuration> udev rules) | |
80e6f37e | 1140 | (let* ((rules (udev-rules-union (cons* udev kvm-udev-rule rules))) |
0adfe95a LC |
1141 | (udev.conf (computed-file "udev.conf" |
1142 | #~(call-with-output-file #$output | |
1143 | (lambda (port) | |
1144 | (format port | |
1145 | "udev_rules=\"~a/lib/udev/rules.d\"\n" | |
1146 | #$rules)))))) | |
1147 | (list | |
d4053c71 | 1148 | (shepherd-service |
0adfe95a LC |
1149 | (provision '(udev)) |
1150 | ||
1151 | ;; Udev needs /dev to be a 'devtmpfs' mount so that new device nodes can | |
1152 | ;; be added: see | |
1153 | ;; <http://www.linuxfromscratch.org/lfs/view/development/chapter07/udev.html>. | |
1154 | (requirement '(root-file-system)) | |
1155 | ||
1156 | (documentation "Populate the /dev directory, dynamically.") | |
1157 | (start #~(lambda () | |
1158 | (define find | |
1159 | (@ (srfi srfi-1) find)) | |
1160 | ||
1161 | (define udevd | |
1162 | ;; Choose the right 'udevd'. | |
1163 | (find file-exists? | |
1164 | (map (lambda (suffix) | |
1165 | (string-append #$udev suffix)) | |
1166 | '("/libexec/udev/udevd" ;udev | |
1167 | "/sbin/udevd")))) ;eudev | |
1168 | ||
1169 | (define (wait-for-udevd) | |
1170 | ;; Wait until someone's listening on udevd's control | |
1171 | ;; socket. | |
1172 | (let ((sock (socket AF_UNIX SOCK_SEQPACKET 0))) | |
1173 | (let try () | |
1174 | (catch 'system-error | |
1175 | (lambda () | |
1176 | (connect sock PF_UNIX "/run/udev/control") | |
1177 | (close-port sock)) | |
1178 | (lambda args | |
1179 | (format #t "waiting for udevd...~%") | |
1180 | (usleep 500000) | |
1181 | (try)))))) | |
1182 | ||
1183 | ;; Allow udev to find the modules. | |
1184 | (setenv "LINUX_MODULE_DIRECTORY" | |
1185 | "/run/booted-system/kernel/lib/modules") | |
1186 | ||
1187 | ;; The first one is for udev, the second one for eudev. | |
1188 | (setenv "UDEV_CONFIG_FILE" #$udev.conf) | |
1189 | (setenv "EUDEV_RULES_DIRECTORY" | |
1190 | (string-append #$rules "/lib/udev/rules.d")) | |
1191 | ||
1192 | (let ((pid (primitive-fork))) | |
1193 | (case pid | |
1194 | ((0) | |
1195 | (exec-command (list udevd))) | |
1196 | (else | |
1197 | ;; Wait until udevd is up and running. This | |
1198 | ;; appears to be needed so that the events | |
1199 | ;; triggered below are actually handled. | |
1200 | (wait-for-udevd) | |
1201 | ||
1202 | ;; Trigger device node creation. | |
1203 | (system* (string-append #$udev "/bin/udevadm") | |
1204 | "trigger" "--action=add") | |
1205 | ||
1206 | ;; Wait for things to settle down. | |
1207 | (system* (string-append #$udev "/bin/udevadm") | |
1208 | "settle") | |
1209 | pid))))) | |
1210 | (stop #~(make-kill-destructor)) | |
1211 | ||
1212 | ;; When halting the system, 'udev' is actually killed by | |
1213 | ;; 'user-processes', i.e., before its own 'stop' method was called. | |
1214 | ;; Thus, make sure it is not respawned. | |
1215 | (respawn? #f))))))) | |
1216 | ||
1217 | (define udev-service-type | |
1218 | (service-type (name 'udev) | |
1219 | (extensions | |
d4053c71 AK |
1220 | (list (service-extension shepherd-root-service-type |
1221 | udev-shepherd-service))) | |
0adfe95a LC |
1222 | |
1223 | (compose concatenate) ;concatenate the list of rules | |
1224 | (extend (lambda (config rules) | |
1225 | (match config | |
1226 | (($ <udev-configuration> udev initial-rules) | |
1227 | (udev-configuration | |
1228 | (udev udev) | |
1229 | (rules (append initial-rules rules))))))))) | |
1230 | ||
255f7308 | 1231 | (define* (udev-service #:key (udev eudev) (rules '())) |
ecd06ca9 LC |
1232 | "Run @var{udev}, which populates the @file{/dev} directory dynamically. Get |
1233 | extra rules from the packages listed in @var{rules}." | |
0adfe95a LC |
1234 | (service udev-service-type |
1235 | (udev-configuration (udev udev) (rules rules)))) | |
1236 | ||
0adfe95a | 1237 | (define swap-service-type |
d4053c71 | 1238 | (shepherd-service-type |
00184239 | 1239 | 'swap |
0adfe95a LC |
1240 | (lambda (device) |
1241 | (define requirement | |
1242 | (if (string-prefix? "/dev/mapper/" device) | |
1243 | (list (symbol-append 'device-mapping- | |
1244 | (string->symbol (basename device)))) | |
1245 | '())) | |
1246 | ||
d4053c71 | 1247 | (shepherd-service |
0adfe95a LC |
1248 | (provision (list (symbol-append 'swap- (string->symbol device)))) |
1249 | (requirement `(udev ,@requirement)) | |
1250 | (documentation "Enable the given swap device.") | |
1251 | (start #~(lambda () | |
1252 | (restart-on-EINTR (swapon #$device)) | |
1253 | #t)) | |
1254 | (stop #~(lambda _ | |
1255 | (restart-on-EINTR (swapoff #$device)) | |
1256 | #f)) | |
1257 | (respawn? #f))))) | |
5dae0186 | 1258 | |
2a13d05e LC |
1259 | (define (swap-service device) |
1260 | "Return a service that uses @var{device} as a swap device." | |
0adfe95a | 1261 | (service swap-service-type device)) |
2a13d05e | 1262 | |
8664cc88 LC |
1263 | (define-record-type* <gpm-configuration> |
1264 | gpm-configuration make-gpm-configuration gpm-configuration? | |
1265 | (gpm gpm-configuration-gpm) ;package | |
1266 | (options gpm-configuration-options)) ;list of strings | |
1267 | ||
d4053c71 | 1268 | (define gpm-shepherd-service |
8664cc88 | 1269 | (match-lambda |
a907d997 | 1270 | (($ <gpm-configuration> gpm options) |
d4053c71 | 1271 | (list (shepherd-service |
8664cc88 LC |
1272 | (requirement '(udev)) |
1273 | (provision '(gpm)) | |
1274 | (start #~(lambda () | |
1275 | ;; 'gpm' runs in the background and sets a PID file. | |
1276 | ;; Note that it requires running as "root". | |
1277 | (false-if-exception (delete-file "/var/run/gpm.pid")) | |
1278 | (fork+exec-command (list (string-append #$gpm "/sbin/gpm") | |
1279 | #$@options)) | |
1280 | ||
1281 | ;; Wait for the PID file to appear; declare failure if | |
1282 | ;; it doesn't show up. | |
1283 | (let loop ((i 3)) | |
1284 | (or (file-exists? "/var/run/gpm.pid") | |
1285 | (if (zero? i) | |
1286 | #f | |
1287 | (begin | |
1288 | (sleep 1) | |
1289 | (loop (1- i)))))))) | |
1290 | ||
1291 | (stop #~(lambda (_) | |
1292 | ;; Return #f if successfully stopped. | |
1293 | (not (zero? (system* (string-append #$gpm "/sbin/gpm") | |
1294 | "-k")))))))))) | |
1295 | ||
1296 | (define gpm-service-type | |
1297 | (service-type (name 'gpm) | |
1298 | (extensions | |
d4053c71 AK |
1299 | (list (service-extension shepherd-root-service-type |
1300 | gpm-shepherd-service))))) | |
8664cc88 LC |
1301 | |
1302 | (define* (gpm-service #:key (gpm gpm) | |
1303 | (options '("-m" "/dev/input/mice" "-t" "ps2"))) | |
1304 | "Run @var{gpm}, the general-purpose mouse daemon, with the given | |
1305 | command-line @var{options}. GPM allows users to use the mouse in the console, | |
1306 | notably to select, copy, and paste text. The default value of @var{options} | |
1307 | uses the @code{ps2} protocol, which works for both USB and PS/2 mice. | |
1308 | ||
1309 | This service is not part of @var{%base-services}." | |
1310 | ;; To test in QEMU, use "-usbdevice mouse" and then, in the monitor, use | |
1311 | ;; "info mice" and "mouse_set X" to use the right mouse. | |
1312 | (service gpm-service-type | |
1313 | (gpm-configuration (gpm gpm) (options options)))) | |
1314 | ||
1315 | \f | |
8b198abe LC |
1316 | (define %base-services |
1317 | ;; Convenience variable holding the basic services. | |
ce8a6dfc | 1318 | (let ((motd (plain-file "motd" " |
8b198abe | 1319 | This is the GNU operating system, welcome!\n\n"))) |
62ca0fdf LC |
1320 | (list (console-font-service "tty1") |
1321 | (console-font-service "tty2") | |
1322 | (console-font-service "tty3") | |
1323 | (console-font-service "tty4") | |
1324 | (console-font-service "tty5") | |
1325 | (console-font-service "tty6") | |
1326 | ||
66e4f01c LC |
1327 | (mingetty-service (mingetty-configuration |
1328 | (tty "tty1") (motd motd))) | |
1329 | (mingetty-service (mingetty-configuration | |
1330 | (tty "tty2") (motd motd))) | |
1331 | (mingetty-service (mingetty-configuration | |
1332 | (tty "tty3") (motd motd))) | |
1333 | (mingetty-service (mingetty-configuration | |
1334 | (tty "tty4") (motd motd))) | |
1335 | (mingetty-service (mingetty-configuration | |
1336 | (tty "tty5") (motd motd))) | |
1337 | (mingetty-service (mingetty-configuration | |
1338 | (tty "tty6") (motd motd))) | |
1339 | ||
4a3b3b07 LC |
1340 | (static-networking-service "lo" "127.0.0.1" |
1341 | #:provision '(loopback)) | |
8b198abe | 1342 | (syslog-service) |
a535e122 | 1343 | (urandom-seed-service) |
8b198abe | 1344 | (guix-service) |
151a2c07 | 1345 | (nscd-service) |
ecd06ca9 | 1346 | |
52bd5734 LC |
1347 | ;; The LVM2 rules are needed as soon as LVM2 or the device-mapper is |
1348 | ;; used, so enable them by default. The FUSE and ALSA rules are | |
1349 | ;; less critical, but handy. | |
68ac258b | 1350 | (udev-service #:rules (list lvm2 fuse alsa-utils crda))))) |
8b198abe | 1351 | |
db4fdc04 | 1352 | ;;; base.scm ends here |