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db4fdc04 | 1 | ;;; GNU Guix --- Functional package management for GNU |
4a4dd5d8 | 2 | ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org> |
5eca9459 | 3 | ;;; Copyright © 2015 Alex Kost <alezost@gmail.com> |
4307c476 | 4 | ;;; Copyright © 2015 Mark H Weaver <mhw@netris.org> |
db4fdc04 LC |
5 | ;;; |
6 | ;;; This file is part of GNU Guix. | |
7 | ;;; | |
8 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
9 | ;;; under the terms of the GNU General Public License as published by | |
10 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
11 | ;;; your option) any later version. | |
12 | ;;; | |
13 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
14 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | ;;; GNU General Public License for more details. | |
17 | ;;; | |
18 | ;;; You should have received a copy of the GNU General Public License | |
19 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
20 | ||
21 | (define-module (gnu services base) | |
e87f0591 | 22 | #:use-module (guix store) |
db4fdc04 | 23 | #:use-module (gnu services) |
0adfe95a | 24 | #:use-module (gnu services dmd) |
4a3b3b07 | 25 | #:use-module (gnu services networking) |
db4fdc04 LC |
26 | #:use-module (gnu system shadow) ; 'user-account', etc. |
27 | #:use-module (gnu system linux) ; 'pam-service', etc. | |
0adfe95a | 28 | #:use-module (gnu system file-systems) ; 'file-system', etc. |
db4fdc04 | 29 | #:use-module (gnu packages admin) |
151a2c07 | 30 | #:use-module ((gnu packages linux) |
68ac258b | 31 | #:select (eudev kbd e2fsprogs lvm2 fuse alsa-utils crda)) |
db4fdc04 | 32 | #:use-module ((gnu packages base) |
bdb36958 | 33 | #:select (canonical-package glibc)) |
db4fdc04 | 34 | #:use-module (gnu packages package-management) |
2d1d2dd8 LC |
35 | #:use-module (gnu packages lsh) |
36 | #:use-module (gnu packages lsof) | |
e2f4b305 | 37 | #:use-module ((gnu build file-systems) |
2c071ce9 | 38 | #:select (mount-flags->bit-mask)) |
b5f4e686 | 39 | #:use-module (guix gexp) |
6454b333 | 40 | #:use-module (guix records) |
db4fdc04 LC |
41 | #:use-module (srfi srfi-1) |
42 | #:use-module (srfi srfi-26) | |
6454b333 | 43 | #:use-module (ice-9 match) |
db4fdc04 | 44 | #:use-module (ice-9 format) |
a00dd9fb | 45 | #:export (root-file-system-service |
023f391c | 46 | file-system-service |
d6e2a622 | 47 | user-unmount-service |
5dae0186 | 48 | device-mapping-service |
2a13d05e | 49 | swap-service |
a00dd9fb LC |
50 | user-processes-service |
51 | host-name-service | |
5eca9459 | 52 | console-keymap-service |
62ca0fdf | 53 | console-font-service |
0adfe95a | 54 | udev-service-type |
151a2c07 | 55 | udev-service |
66e4f01c LC |
56 | |
57 | mingetty-configuration | |
58 | mingetty-configuration? | |
db4fdc04 | 59 | mingetty-service |
cd6f6c22 | 60 | mingetty-service-type |
6454b333 LC |
61 | |
62 | %nscd-default-caches | |
63 | %nscd-default-configuration | |
64 | ||
65 | nscd-configuration | |
66 | nscd-configuration? | |
67 | ||
68 | nscd-cache | |
69 | nscd-cache? | |
70 | ||
0adfe95a | 71 | nscd-service-type |
db4fdc04 LC |
72 | nscd-service |
73 | syslog-service | |
0adfe95a LC |
74 | |
75 | guix-configuration | |
76 | guix-configuration? | |
8b198abe | 77 | guix-service |
cd6f6c22 | 78 | guix-service-type |
1c52181f LC |
79 | guix-publish-configuration |
80 | guix-publish-configuration? | |
81 | guix-publish-service | |
82 | guix-publish-service-type | |
0adfe95a | 83 | |
8b198abe | 84 | %base-services)) |
db4fdc04 LC |
85 | |
86 | ;;; Commentary: | |
87 | ;;; | |
88 | ;;; Base system services---i.e., services that 99% of the users will want to | |
89 | ;;; use. | |
90 | ;;; | |
91 | ;;; Code: | |
92 | ||
0adfe95a LC |
93 | \f |
94 | ;;; | |
95 | ;;; File systems. | |
96 | ;;; | |
a00dd9fb | 97 | |
0adfe95a LC |
98 | (define %root-file-system-dmd-service |
99 | (dmd-service | |
be1c2c54 LC |
100 | (documentation "Take care of the root file system.") |
101 | (provision '(root-file-system)) | |
102 | (start #~(const #t)) | |
103 | (stop #~(lambda _ | |
104 | ;; Return #f if successfully stopped. | |
105 | (sync) | |
106 | ||
107 | (call-with-blocked-asyncs | |
108 | (lambda () | |
109 | (let ((null (%make-void-port "w"))) | |
110 | ;; Close 'dmd.log'. | |
111 | (display "closing log\n") | |
112 | ;; XXX: Ideally we'd use 'stop-logging', but that one | |
113 | ;; doesn't actually close the port as of dmd 0.1. | |
114 | (close-port (@@ (dmd comm) log-output-port)) | |
115 | (set! (@@ (dmd comm) log-output-port) null) | |
116 | ||
117 | ;; Redirect the default output ports.. | |
118 | (set-current-output-port null) | |
119 | (set-current-error-port null) | |
120 | ||
121 | ;; Close /dev/console. | |
122 | (for-each close-fdes '(0 1 2)) | |
123 | ||
124 | ;; At this point, there are no open files left, so the | |
125 | ;; root file system can be re-mounted read-only. | |
126 | (mount #f "/" #f | |
127 | (logior MS_REMOUNT MS_RDONLY) | |
128 | #:update-mtab? #f) | |
129 | ||
130 | #f))))) | |
131 | (respawn? #f))) | |
a00dd9fb | 132 | |
0adfe95a | 133 | (define root-file-system-service-type |
00184239 LC |
134 | (dmd-service-type 'root-file-system |
135 | (const %root-file-system-dmd-service))) | |
0adfe95a LC |
136 | |
137 | (define (root-file-system-service) | |
138 | "Return a service whose sole purpose is to re-mount read-only the root file | |
139 | system upon shutdown (aka. cleanly \"umounting\" root.) | |
140 | ||
141 | This service must be the root of the service dependency graph so that its | |
142 | 'stop' action is invoked when dmd is the only process left." | |
143 | (service root-file-system-service-type #f)) | |
144 | ||
145 | (define (file-system->dmd-service-name file-system) | |
146 | "Return the symbol that denotes the service mounting and unmounting | |
147 | FILE-SYSTEM." | |
148 | (symbol-append 'file-system- | |
149 | (string->symbol (file-system-mount-point file-system)))) | |
150 | ||
e502bf89 LC |
151 | (define (mapped-device->dmd-service-name md) |
152 | "Return the symbol that denotes the dmd service of MD, a <mapped-device>." | |
153 | (symbol-append 'device-mapping- | |
154 | (string->symbol (mapped-device-target md)))) | |
155 | ||
156 | (define dependency->dmd-service-name | |
157 | (match-lambda | |
158 | ((? mapped-device? md) | |
159 | (mapped-device->dmd-service-name md)) | |
160 | ((? file-system? fs) | |
161 | (file-system->dmd-service-name fs)))) | |
162 | ||
0adfe95a LC |
163 | (define file-system-service-type |
164 | ;; TODO(?): Make this an extensible service that takes <file-system> objects | |
165 | ;; and returns a list of <dmd-service>. | |
166 | (dmd-service-type | |
00184239 | 167 | 'file-system |
0adfe95a LC |
168 | (lambda (file-system) |
169 | (let ((target (file-system-mount-point file-system)) | |
170 | (device (file-system-device file-system)) | |
171 | (type (file-system-type file-system)) | |
172 | (title (file-system-title file-system)) | |
173 | (check? (file-system-check? file-system)) | |
174 | (create? (file-system-create-mount-point? file-system)) | |
175 | (dependencies (file-system-dependencies file-system))) | |
176 | (dmd-service | |
177 | (provision (list (file-system->dmd-service-name file-system))) | |
178 | (requirement `(root-file-system | |
e502bf89 | 179 | ,@(map dependency->dmd-service-name dependencies))) |
0adfe95a LC |
180 | (documentation "Check, mount, and unmount the given file system.") |
181 | (start #~(lambda args | |
182 | ;; FIXME: Use or factorize with 'mount-file-system'. | |
183 | (let ((device (canonicalize-device-spec #$device '#$title)) | |
184 | (flags #$(mount-flags->bit-mask | |
185 | (file-system-flags file-system)))) | |
186 | #$(if create? | |
187 | #~(mkdir-p #$target) | |
188 | #~#t) | |
189 | #$(if check? | |
190 | #~(begin | |
191 | ;; Make sure fsck.ext2 & co. can be found. | |
192 | (setenv "PATH" | |
193 | (string-append | |
194 | #$e2fsprogs "/sbin:" | |
195 | "/run/current-system/profile/sbin:" | |
196 | (getenv "PATH"))) | |
197 | (check-file-system device #$type)) | |
198 | #~#t) | |
199 | ||
200 | (mount device #$target #$type flags | |
201 | #$(file-system-options file-system)) | |
202 | ||
203 | ;; For read-only bind mounts, an extra remount is needed, | |
204 | ;; as per <http://lwn.net/Articles/281157/>, which still | |
205 | ;; applies to Linux 4.0. | |
206 | (when (and (= MS_BIND (logand flags MS_BIND)) | |
207 | (= MS_RDONLY (logand flags MS_RDONLY))) | |
208 | (mount device #$target #$type | |
209 | (logior MS_BIND MS_REMOUNT MS_RDONLY)))) | |
210 | #t)) | |
211 | (stop #~(lambda args | |
212 | ;; Normally there are no processes left at this point, so | |
213 | ;; TARGET can be safely unmounted. | |
214 | ||
215 | ;; Make sure PID 1 doesn't keep TARGET busy. | |
216 | (chdir "/") | |
217 | ||
218 | (umount #$target) | |
219 | #f))))))) | |
220 | ||
221 | (define* (file-system-service file-system) | |
222 | "Return a service that mounts @var{file-system}, a @code{<file-system>} | |
223 | object." | |
224 | (service file-system-service-type file-system)) | |
225 | ||
226 | (define user-unmount-service-type | |
227 | (dmd-service-type | |
5f44ee4f | 228 | 'user-file-systems |
0adfe95a LC |
229 | (lambda (known-mount-points) |
230 | (dmd-service | |
231 | (documentation "Unmount manually-mounted file systems.") | |
5f44ee4f | 232 | (provision '(user-file-systems)) |
0adfe95a LC |
233 | (start #~(const #t)) |
234 | (stop #~(lambda args | |
235 | (define (known? mount-point) | |
236 | (member mount-point | |
237 | (cons* "/proc" "/sys" '#$known-mount-points))) | |
238 | ||
239 | ;; Make sure we don't keep the user's mount points busy. | |
240 | (chdir "/") | |
241 | ||
242 | (for-each (lambda (mount-point) | |
243 | (format #t "unmounting '~a'...~%" mount-point) | |
244 | (catch 'system-error | |
245 | (lambda () | |
246 | (umount mount-point)) | |
247 | (lambda args | |
248 | (let ((errno (system-error-errno args))) | |
249 | (format #t "failed to unmount '~a': ~a~%" | |
250 | mount-point (strerror errno)))))) | |
251 | (filter (negate known?) (mount-points))) | |
252 | #f)))))) | |
023f391c | 253 | |
d6e2a622 LC |
254 | (define (user-unmount-service known-mount-points) |
255 | "Return a service whose sole purpose is to unmount file systems not listed | |
256 | in KNOWN-MOUNT-POINTS when it is stopped." | |
0adfe95a | 257 | (service user-unmount-service-type known-mount-points)) |
d6e2a622 | 258 | |
7d57cfd3 LC |
259 | (define %do-not-kill-file |
260 | ;; Name of the file listing PIDs of processes that must survive when halting | |
261 | ;; the system. Typical example is user-space file systems. | |
262 | "/etc/dmd/do-not-kill") | |
263 | ||
0adfe95a LC |
264 | (define user-processes-service-type |
265 | (dmd-service-type | |
00184239 | 266 | 'user-processes |
0adfe95a LC |
267 | (match-lambda |
268 | ((requirements grace-delay) | |
269 | (dmd-service | |
270 | (documentation "When stopped, terminate all user processes.") | |
271 | (provision '(user-processes)) | |
5f44ee4f LC |
272 | (requirement (cons* 'root-file-system 'user-file-systems |
273 | (map file-system->dmd-service-name | |
274 | requirements))) | |
0adfe95a LC |
275 | (start #~(const #t)) |
276 | (stop #~(lambda _ | |
277 | (define (kill-except omit signal) | |
278 | ;; Kill all the processes with SIGNAL except those listed | |
279 | ;; in OMIT and the current process. | |
280 | (let ((omit (cons (getpid) omit))) | |
281 | (for-each (lambda (pid) | |
282 | (unless (memv pid omit) | |
283 | (false-if-exception | |
284 | (kill pid signal)))) | |
285 | (processes)))) | |
286 | ||
287 | (define omitted-pids | |
288 | ;; List of PIDs that must not be killed. | |
289 | (if (file-exists? #$%do-not-kill-file) | |
290 | (map string->number | |
291 | (call-with-input-file #$%do-not-kill-file | |
292 | (compose string-tokenize | |
293 | (@ (ice-9 rdelim) read-string)))) | |
294 | '())) | |
295 | ||
296 | (define (now) | |
297 | (car (gettimeofday))) | |
298 | ||
299 | (define (sleep* n) | |
300 | ;; Really sleep N seconds. | |
301 | ;; Work around <http://bugs.gnu.org/19581>. | |
302 | (define start (now)) | |
303 | (let loop ((elapsed 0)) | |
304 | (when (> n elapsed) | |
305 | (sleep (- n elapsed)) | |
306 | (loop (- (now) start))))) | |
307 | ||
308 | (define lset= (@ (srfi srfi-1) lset=)) | |
309 | ||
310 | (display "sending all processes the TERM signal\n") | |
311 | ||
312 | (if (null? omitted-pids) | |
313 | (begin | |
314 | ;; Easy: terminate all of them. | |
315 | (kill -1 SIGTERM) | |
316 | (sleep* #$grace-delay) | |
317 | (kill -1 SIGKILL)) | |
318 | (begin | |
319 | ;; Kill them all except OMITTED-PIDS. XXX: We would | |
320 | ;; like to (kill -1 SIGSTOP) to get a fixed list of | |
321 | ;; processes, like 'killall5' does, but that seems | |
322 | ;; unreliable. | |
323 | (kill-except omitted-pids SIGTERM) | |
324 | (sleep* #$grace-delay) | |
325 | (kill-except omitted-pids SIGKILL) | |
326 | (delete-file #$%do-not-kill-file))) | |
327 | ||
328 | (let wait () | |
329 | (let ((pids (processes))) | |
330 | (unless (lset= = pids (cons 1 omitted-pids)) | |
331 | (format #t "waiting for process termination\ | |
332 | (processes left: ~s)~%" | |
333 | pids) | |
334 | (sleep* 2) | |
335 | (wait)))) | |
336 | ||
337 | (display "all processes have been terminated\n") | |
338 | #f)) | |
339 | (respawn? #f)))))) | |
340 | ||
341 | (define* (user-processes-service file-systems #:key (grace-delay 4)) | |
a00dd9fb LC |
342 | "Return the service that is responsible for terminating all the processes so |
343 | that the root file system can be re-mounted read-only, just before | |
344 | rebooting/halting. Processes still running GRACE-DELAY seconds after SIGTERM | |
345 | has been sent are terminated with SIGKILL. | |
346 | ||
0adfe95a LC |
347 | The returned service will depend on 'root-file-system' and on all the dmd |
348 | services corresponding to FILE-SYSTEMS. | |
023f391c | 349 | |
a00dd9fb LC |
350 | All the services that spawn processes must depend on this one so that they are |
351 | stopped before 'kill' is called." | |
0adfe95a LC |
352 | (service user-processes-service-type |
353 | (list file-systems grace-delay))) | |
d656c14e | 354 | |
0adfe95a LC |
355 | \f |
356 | ;;; | |
357 | ;;; Console & co. | |
358 | ;;; | |
359 | ||
360 | (define host-name-service-type | |
361 | (dmd-service-type | |
00184239 | 362 | 'host-name |
0adfe95a LC |
363 | (lambda (name) |
364 | (dmd-service | |
365 | (documentation "Initialize the machine's host name.") | |
366 | (provision '(host-name)) | |
367 | (start #~(lambda _ | |
368 | (sethostname #$name))) | |
369 | (respawn? #f))))) | |
a00dd9fb | 370 | |
db4fdc04 | 371 | (define (host-name-service name) |
51da7ca0 | 372 | "Return a service that sets the host name to @var{name}." |
0adfe95a | 373 | (service host-name-service-type name)) |
db4fdc04 | 374 | |
62ca0fdf LC |
375 | (define (unicode-start tty) |
376 | "Return a gexp to start Unicode support on @var{tty}." | |
377 | ||
378 | ;; We have to run 'unicode_start' in a pipe so that when it invokes the | |
379 | ;; 'tty' command, that command returns TTY. | |
380 | #~(begin | |
381 | (let ((pid (primitive-fork))) | |
382 | (case pid | |
383 | ((0) | |
384 | (close-fdes 0) | |
385 | (dup2 (open-fdes #$tty O_RDONLY) 0) | |
386 | (close-fdes 1) | |
387 | (dup2 (open-fdes #$tty O_WRONLY) 1) | |
388 | (execl (string-append #$kbd "/bin/unicode_start") | |
389 | "unicode_start")) | |
390 | (else | |
391 | (zero? (cdr (waitpid pid)))))))) | |
392 | ||
0adfe95a LC |
393 | (define console-keymap-service-type |
394 | (dmd-service-type | |
00184239 | 395 | 'console-keymap |
0adfe95a LC |
396 | (lambda (file) |
397 | (dmd-service | |
398 | (documentation (string-append "Load console keymap (loadkeys).")) | |
399 | (provision '(console-keymap)) | |
400 | (start #~(lambda _ | |
401 | (zero? (system* (string-append #$kbd "/bin/loadkeys") | |
402 | #$file)))) | |
403 | (respawn? #f))))) | |
404 | ||
5eca9459 AK |
405 | (define (console-keymap-service file) |
406 | "Return a service to load console keymap from @var{file}." | |
0adfe95a LC |
407 | (service console-keymap-service-type file)) |
408 | ||
409 | (define console-font-service-type | |
410 | (dmd-service-type | |
00184239 | 411 | 'console-font |
0adfe95a LC |
412 | (match-lambda |
413 | ((tty font) | |
414 | (let ((device (string-append "/dev/" tty))) | |
415 | (dmd-service | |
416 | (documentation "Load a Unicode console font.") | |
417 | (provision (list (symbol-append 'console-font- | |
418 | (string->symbol tty)))) | |
419 | ||
420 | ;; Start after mingetty has been started on TTY, otherwise the settings | |
421 | ;; are ignored. | |
422 | (requirement (list (symbol-append 'term- | |
423 | (string->symbol tty)))) | |
424 | ||
425 | (start #~(lambda _ | |
426 | (and #$(unicode-start device) | |
427 | (zero? | |
428 | (system* (string-append #$kbd "/bin/setfont") | |
429 | "-C" #$device #$font))))) | |
430 | (stop #~(const #t)) | |
431 | (respawn? #f))))))) | |
5eca9459 | 432 | |
62ca0fdf LC |
433 | (define* (console-font-service tty #:optional (font "LatGrkCyr-8x16")) |
434 | "Return a service that sets up Unicode support in @var{tty} and loads | |
435 | @var{font} for that tty (fonts are per virtual console in Linux.)" | |
436 | ;; Note: 'LatGrkCyr-8x16' has the advantage of providing three common | |
437 | ;; scripts as well as glyphs for em dash, quotation marks, and other Unicode | |
438 | ;; codepoints notably found in the UTF-8 manual. | |
0adfe95a | 439 | (service console-font-service-type (list tty font))) |
62ca0fdf | 440 | |
66e4f01c LC |
441 | (define-record-type* <mingetty-configuration> |
442 | mingetty-configuration make-mingetty-configuration | |
443 | mingetty-configuration? | |
444 | (mingetty mingetty-configuration-mingetty ;<package> | |
445 | (default mingetty)) | |
446 | (tty mingetty-configuration-tty) ;string | |
447 | (motd mingetty-configuration-motd ;file-like | |
448 | (default (plain-file "motd" "Welcome.\n"))) | |
449 | (auto-login mingetty-auto-login ;string | #f | |
450 | (default #f)) | |
451 | (login-program mingetty-login-program ;gexp | |
452 | (default #f)) | |
453 | (login-pause? mingetty-login-pause? ;Boolean | |
454 | (default #f)) | |
455 | ||
456 | ;; Allow empty passwords by default so that first-time users can log in when | |
457 | ;; the 'root' account has just been created. | |
458 | (allow-empty-passwords? mingetty-configuration-allow-empty-passwords? | |
459 | (default #t))) ;Boolean | |
460 | ||
0adfe95a LC |
461 | (define (mingetty-pam-service conf) |
462 | "Return the list of PAM service needed for CONF." | |
463 | ;; Let 'login' be known to PAM. All the mingetty services will have that | |
464 | ;; PAM service, but that's fine because they're all identical and duplicates | |
465 | ;; are removed. | |
466 | (list (unix-pam-service "login" | |
467 | #:allow-empty-passwords? | |
468 | (mingetty-configuration-allow-empty-passwords? conf) | |
469 | #:motd | |
470 | (mingetty-configuration-motd conf)))) | |
471 | ||
472 | (define mingetty-dmd-service | |
473 | (match-lambda | |
66e4f01c LC |
474 | (($ <mingetty-configuration> mingetty tty motd auto-login login-program |
475 | login-pause? allow-empty-passwords?) | |
0adfe95a LC |
476 | (list |
477 | (dmd-service | |
478 | (documentation "Run mingetty on an tty.") | |
479 | (provision (list (symbol-append 'term- (string->symbol tty)))) | |
480 | ||
481 | ;; Since the login prompt shows the host name, wait for the 'host-name' | |
482 | ;; service to be done. Also wait for udev essentially so that the tty | |
483 | ;; text is not lost in the middle of kernel messages (XXX). | |
484 | (requirement '(user-processes host-name udev)) | |
485 | ||
486 | (start #~(make-forkexec-constructor | |
487 | (list (string-append #$mingetty "/sbin/mingetty") | |
488 | "--noclear" #$tty | |
489 | #$@(if auto-login | |
490 | #~("--autologin" #$auto-login) | |
491 | #~()) | |
492 | #$@(if login-program | |
493 | #~("--loginprog" #$login-program) | |
494 | #~()) | |
495 | #$@(if login-pause? | |
496 | #~("--loginpause") | |
497 | #~())))) | |
498 | (stop #~(make-kill-destructor))))))) | |
499 | ||
500 | (define mingetty-service-type | |
501 | (service-type (name 'mingetty) | |
502 | (extensions (list (service-extension dmd-root-service-type | |
503 | mingetty-dmd-service) | |
504 | (service-extension pam-root-service-type | |
505 | mingetty-pam-service))))) | |
506 | ||
507 | (define* (mingetty-service config) | |
508 | "Return a service to run mingetty according to @var{config}, which specifies | |
509 | the tty to run, among other things." | |
510 | (service mingetty-service-type config)) | |
db4fdc04 | 511 | |
6454b333 LC |
512 | (define-record-type* <nscd-configuration> nscd-configuration |
513 | make-nscd-configuration | |
514 | nscd-configuration? | |
515 | (log-file nscd-configuration-log-file ;string | |
516 | (default "/var/log/nscd.log")) | |
517 | (debug-level nscd-debug-level ;integer | |
518 | (default 0)) | |
519 | ;; TODO: See nscd.conf in glibc for other options to add. | |
520 | (caches nscd-configuration-caches ;list of <nscd-cache> | |
b893f1ae LC |
521 | (default %nscd-default-caches)) |
522 | (name-services nscd-configuration-name-services ;list of <packages> | |
523 | (default '())) | |
524 | (glibc nscd-configuration-glibc ;<package> | |
525 | (default (canonical-package glibc)))) | |
6454b333 LC |
526 | |
527 | (define-record-type* <nscd-cache> nscd-cache make-nscd-cache | |
528 | nscd-cache? | |
529 | (database nscd-cache-database) ;symbol | |
530 | (positive-time-to-live nscd-cache-positive-time-to-live) ;integer | |
531 | (negative-time-to-live nscd-cache-negative-time-to-live | |
532 | (default 20)) ;integer | |
533 | (suggested-size nscd-cache-suggested-size ;integer ("default module | |
534 | ;of hash table") | |
535 | (default 211)) | |
536 | (check-files? nscd-cache-check-files? ;Boolean | |
537 | (default #t)) | |
538 | (persistent? nscd-cache-persistent? ;Boolean | |
539 | (default #t)) | |
540 | (shared? nscd-cache-shared? ;Boolean | |
541 | (default #t)) | |
542 | (max-database-size nscd-cache-max-database-size ;integer | |
543 | (default (* 32 (expt 2 20)))) | |
544 | (auto-propagate? nscd-cache-auto-propagate? ;Boolean | |
545 | (default #t))) | |
546 | ||
547 | (define %nscd-default-caches | |
548 | ;; Caches that we want to enable by default. Note that when providing an | |
549 | ;; empty nscd.conf, all caches are disabled. | |
550 | (list (nscd-cache (database 'hosts) | |
551 | ||
552 | ;; Aggressively cache the host name cache to improve | |
553 | ;; privacy and resilience. | |
554 | (positive-time-to-live (* 3600 12)) | |
555 | (negative-time-to-live 20) | |
556 | (persistent? #t)) | |
557 | ||
558 | (nscd-cache (database 'services) | |
559 | ||
560 | ;; Services are unlikely to change, so we can be even more | |
561 | ;; aggressive. | |
562 | (positive-time-to-live (* 3600 24)) | |
563 | (negative-time-to-live 3600) | |
564 | (check-files? #t) ;check /etc/services changes | |
565 | (persistent? #t)))) | |
566 | ||
567 | (define %nscd-default-configuration | |
568 | ;; Default nscd configuration. | |
569 | (nscd-configuration)) | |
570 | ||
571 | (define (nscd.conf-file config) | |
572 | "Return the @file{nscd.conf} configuration file for @var{config}, an | |
573 | @code{<nscd-configuration>} object." | |
574 | (define cache->config | |
575 | (match-lambda | |
be1c2c54 LC |
576 | (($ <nscd-cache> (= symbol->string database) |
577 | positive-ttl negative-ttl size check-files? | |
578 | persistent? shared? max-size propagate?) | |
579 | (string-append "\nenable-cache\t" database "\tyes\n" | |
580 | ||
581 | "positive-time-to-live\t" database "\t" | |
582 | (number->string positive-ttl) "\n" | |
583 | "negative-time-to-live\t" database "\t" | |
584 | (number->string negative-ttl) "\n" | |
585 | "suggested-size\t" database "\t" | |
586 | (number->string size) "\n" | |
587 | "check-files\t" database "\t" | |
588 | (if check-files? "yes\n" "no\n") | |
589 | "persistent\t" database "\t" | |
590 | (if persistent? "yes\n" "no\n") | |
591 | "shared\t" database "\t" | |
592 | (if shared? "yes\n" "no\n") | |
593 | "max-db-size\t" database "\t" | |
594 | (number->string max-size) "\n" | |
595 | "auto-propagate\t" database "\t" | |
596 | (if propagate? "yes\n" "no\n"))))) | |
6454b333 LC |
597 | |
598 | (match config | |
599 | (($ <nscd-configuration> log-file debug-level caches) | |
be1c2c54 LC |
600 | (plain-file "nscd.conf" |
601 | (string-append "\ | |
6454b333 | 602 | # Configuration of libc's name service cache daemon (nscd).\n\n" |
be1c2c54 LC |
603 | (if log-file |
604 | (string-append "logfile\t" log-file) | |
605 | "") | |
606 | "\n" | |
607 | (if debug-level | |
608 | (string-append "debug-level\t" | |
609 | (number->string debug-level)) | |
610 | "") | |
611 | "\n" | |
612 | (string-concatenate | |
613 | (map cache->config caches))))))) | |
6454b333 | 614 | |
0adfe95a LC |
615 | (define (nscd-dmd-service config) |
616 | "Return a dmd service for CONFIG, an <nscd-configuration> object." | |
617 | (let ((nscd.conf (nscd.conf-file config)) | |
618 | (name-services (nscd-configuration-name-services config))) | |
619 | (list (dmd-service | |
620 | (documentation "Run libc's name service cache daemon (nscd).") | |
621 | (provision '(nscd)) | |
622 | (requirement '(user-processes)) | |
623 | (start #~(make-forkexec-constructor | |
624 | (list (string-append #$(nscd-configuration-glibc config) | |
625 | "/sbin/nscd") | |
626 | "-f" #$nscd.conf "--foreground") | |
627 | ||
628 | #:environment-variables | |
629 | (list (string-append "LD_LIBRARY_PATH=" | |
630 | (string-join | |
631 | (map (lambda (dir) | |
632 | (string-append dir "/lib")) | |
633 | (list #$@name-services)) | |
634 | ":"))))) | |
635 | (stop #~(make-kill-destructor)) | |
636 | ||
637 | (respawn? #f))))) | |
638 | ||
639 | (define nscd-activation | |
640 | ;; Actions to take before starting nscd. | |
641 | #~(begin | |
642 | (use-modules (guix build utils)) | |
643 | (mkdir-p "/var/run/nscd") | |
644 | (mkdir-p "/var/db/nscd"))) ;for the persistent cache | |
645 | ||
646 | (define nscd-service-type | |
647 | (service-type (name 'nscd) | |
648 | (extensions | |
649 | (list (service-extension activation-service-type | |
650 | (const nscd-activation)) | |
651 | (service-extension dmd-root-service-type | |
652 | nscd-dmd-service))) | |
653 | ||
654 | ;; This can be extended by providing additional name services | |
655 | ;; such as nss-mdns. | |
656 | (compose concatenate) | |
657 | (extend (lambda (config name-services) | |
658 | (nscd-configuration | |
659 | (inherit config) | |
660 | (name-services (append | |
661 | (nscd-configuration-name-services config) | |
662 | name-services))))))) | |
663 | ||
b893f1ae | 664 | (define* (nscd-service #:optional (config %nscd-default-configuration)) |
6454b333 | 665 | "Return a service that runs libc's name service cache daemon (nscd) with the |
b893f1ae LC |
666 | given @var{config}---an @code{<nscd-configuration>} object. @xref{Name |
667 | Service Switch}, for an example." | |
0adfe95a LC |
668 | (service nscd-service-type config)) |
669 | ||
670 | (define syslog-service-type | |
671 | (dmd-service-type | |
00184239 | 672 | 'syslog |
0adfe95a LC |
673 | (lambda (config-file) |
674 | (dmd-service | |
675 | (documentation "Run the syslog daemon (syslogd).") | |
676 | (provision '(syslogd)) | |
677 | (requirement '(user-processes)) | |
678 | (start #~(make-forkexec-constructor | |
679 | (list (string-append #$inetutils "/libexec/syslogd") | |
680 | "--no-detach" "--rcfile" #$config-file))) | |
681 | (stop #~(make-kill-destructor)))))) | |
be1c2c54 LC |
682 | |
683 | ;; Snippet adapted from the GNU inetutils manual. | |
684 | (define %default-syslog.conf | |
685 | (plain-file "syslog.conf" " | |
1f3fc60d | 686 | # Log all error messages, authentication messages of |
db4fdc04 LC |
687 | # level notice or higher and anything of level err or |
688 | # higher to the console. | |
689 | # Don't log private authentication messages! | |
6a191274 | 690 | *.alert;auth.notice;authpriv.none /dev/console |
db4fdc04 LC |
691 | |
692 | # Log anything (except mail) of level info or higher. | |
693 | # Don't log private authentication messages! | |
694 | *.info;mail.none;authpriv.none /var/log/messages | |
695 | ||
696 | # Same, in a different place. | |
697 | *.info;mail.none;authpriv.none /dev/tty12 | |
698 | ||
699 | # The authpriv file has restricted access. | |
700 | authpriv.* /var/log/secure | |
701 | ||
702 | # Log all the mail messages in one place. | |
703 | mail.* /var/log/maillog | |
be1c2c54 | 704 | ")) |
0adfe95a | 705 | |
be1c2c54 LC |
706 | (define* (syslog-service #:key (config-file %default-syslog.conf)) |
707 | "Return a service that runs @code{syslogd}. | |
708 | If configuration file name @var{config-file} is not specified, use some | |
709 | reasonable default settings." | |
0adfe95a | 710 | (service syslog-service-type config-file)) |
db4fdc04 | 711 | |
1c52181f LC |
712 | \f |
713 | ;;; | |
714 | ;;; Guix services. | |
715 | ;;; | |
716 | ||
db4fdc04 | 717 | (define* (guix-build-accounts count #:key |
ab6a279a | 718 | (group "guixbuild") |
db4fdc04 | 719 | (first-uid 30001) |
db4fdc04 LC |
720 | (shadow shadow)) |
721 | "Return a list of COUNT user accounts for Guix build users, with UIDs | |
722 | starting at FIRST-UID, and under GID." | |
5250a4f2 LC |
723 | (unfold (cut > <> count) |
724 | (lambda (n) | |
725 | (user-account | |
726 | (name (format #f "guixbuilder~2,'0d" n)) | |
727 | (system? #t) | |
728 | (uid (+ first-uid n -1)) | |
729 | (group group) | |
730 | ||
731 | ;; guix-daemon expects GROUP to be listed as a | |
732 | ;; supplementary group too: | |
733 | ;; <http://lists.gnu.org/archive/html/bug-guix/2013-01/msg00239.html>. | |
734 | (supplementary-groups (list group "kvm")) | |
735 | ||
736 | (comment (format #f "Guix Build User ~2d" n)) | |
737 | (home-directory "/var/empty") | |
738 | (shell #~(string-append #$shadow "/sbin/nologin")))) | |
739 | 1+ | |
740 | 1)) | |
db4fdc04 | 741 | |
2c5c696c LC |
742 | (define (hydra-key-authorization guix) |
743 | "Return a gexp with code to register the hydra.gnu.org public key with | |
744 | GUIX." | |
745 | #~(unless (file-exists? "/etc/guix/acl") | |
746 | (let ((pid (primitive-fork))) | |
747 | (case pid | |
748 | ((0) | |
749 | (let* ((key (string-append #$guix | |
750 | "/share/guix/hydra.gnu.org.pub")) | |
751 | (port (open-file key "r0b"))) | |
752 | (format #t "registering public key '~a'...~%" key) | |
753 | (close-port (current-input-port)) | |
2c5c696c LC |
754 | (dup port 0) |
755 | (execl (string-append #$guix "/bin/guix") | |
756 | "guix" "archive" "--authorize") | |
757 | (exit 1))) | |
758 | (else | |
759 | (let ((status (cdr (waitpid pid)))) | |
760 | (unless (zero? status) | |
761 | (format (current-error-port) "warning: \ | |
762 | failed to register hydra.gnu.org public key: ~a~%" status)))))))) | |
763 | ||
0adfe95a LC |
764 | (define-record-type* <guix-configuration> |
765 | guix-configuration make-guix-configuration | |
766 | guix-configuration? | |
767 | (guix guix-configuration-guix ;<package> | |
768 | (default guix)) | |
769 | (build-group guix-configuration-build-group ;string | |
770 | (default "guixbuild")) | |
771 | (build-accounts guix-configuration-build-accounts ;integer | |
772 | (default 10)) | |
773 | (authorize-key? guix-configuration-authorize-key? ;Boolean | |
774 | (default #t)) | |
775 | (use-substitutes? guix-configuration-use-substitutes? ;Boolean | |
776 | (default #t)) | |
b0b9f6e0 LC |
777 | (substitute-urls guix-configuration-substitute-urls ;list of strings |
778 | (default %default-substitute-urls)) | |
0adfe95a LC |
779 | (extra-options guix-configuration-extra-options ;list of strings |
780 | (default '())) | |
781 | (lsof guix-configuration-lsof ;<package> | |
782 | (default lsof)) | |
783 | (lsh guix-configuration-lsh ;<package> | |
784 | (default lsh))) | |
785 | ||
786 | (define %default-guix-configuration | |
787 | (guix-configuration)) | |
788 | ||
789 | (define (guix-dmd-service config) | |
790 | "Return a <dmd-service> for the Guix daemon service with CONFIG." | |
791 | (match config | |
792 | (($ <guix-configuration> guix build-group build-accounts authorize-key? | |
b0b9f6e0 LC |
793 | use-substitutes? substitute-urls extra-options |
794 | lsof lsh) | |
0adfe95a LC |
795 | (list (dmd-service |
796 | (documentation "Run the Guix daemon.") | |
797 | (provision '(guix-daemon)) | |
798 | (requirement '(user-processes)) | |
799 | (start | |
800 | #~(make-forkexec-constructor | |
801 | (list (string-append #$guix "/bin/guix-daemon") | |
802 | "--build-users-group" #$build-group | |
803 | #$@(if use-substitutes? | |
804 | '() | |
805 | '("--no-substitutes")) | |
b0b9f6e0 | 806 | "--substitute-urls" #$(string-join substitute-urls) |
0adfe95a LC |
807 | #$@extra-options) |
808 | ||
809 | ;; Add 'lsof' (for the GC) and 'lsh' (for offloading) to the | |
810 | ;; daemon's $PATH. | |
811 | #:environment-variables | |
812 | (list (string-append "PATH=" #$lsof "/bin:" #$lsh "/bin")))) | |
813 | (stop #~(make-kill-destructor))))))) | |
814 | ||
815 | (define (guix-accounts config) | |
816 | "Return the user accounts and user groups for CONFIG." | |
817 | (match config | |
818 | (($ <guix-configuration> _ build-group build-accounts) | |
819 | (cons (user-group | |
820 | (name build-group) | |
821 | (system? #t) | |
822 | ||
823 | ;; Use a fixed GID so that we can create the store with the right | |
824 | ;; owner. | |
825 | (id 30000)) | |
826 | (guix-build-accounts build-accounts | |
827 | #:group build-group))))) | |
828 | ||
829 | (define (guix-activation config) | |
830 | "Return the activation gexp for CONFIG." | |
831 | (match config | |
832 | (($ <guix-configuration> guix build-group build-accounts authorize-key?) | |
833 | ;; Assume that the store has BUILD-GROUP as its group. We could | |
834 | ;; otherwise call 'chown' here, but the problem is that on a COW unionfs, | |
835 | ;; chown leads to an entire copy of the tree, which is a bad idea. | |
836 | ||
837 | ;; Optionally authorize hydra.gnu.org's key. | |
838 | (and authorize-key? | |
839 | (hydra-key-authorization guix))))) | |
840 | ||
841 | (define guix-service-type | |
842 | (service-type | |
843 | (name 'guix) | |
844 | (extensions | |
845 | (list (service-extension dmd-root-service-type guix-dmd-service) | |
846 | (service-extension account-service-type guix-accounts) | |
847 | (service-extension activation-service-type guix-activation))))) | |
848 | ||
849 | (define* (guix-service #:optional (config %default-guix-configuration)) | |
850 | "Return a service that runs the Guix build daemon according to | |
851 | @var{config}." | |
852 | (service guix-service-type config)) | |
853 | ||
1c52181f LC |
854 | |
855 | (define-record-type* <guix-publish-configuration> | |
856 | guix-publish-configuration make-guix-publish-configuration | |
857 | guix-publish-configuration? | |
858 | (guix guix-publish-configuration-guix ;package | |
859 | (default guix)) | |
860 | (port guix-publish-configuration-port ;number | |
861 | (default 80)) | |
862 | (host guix-publish-configuration-host ;string | |
863 | (default "localhost"))) | |
864 | ||
865 | (define guix-publish-dmd-service | |
866 | (match-lambda | |
867 | (($ <guix-publish-configuration> guix port host) | |
868 | (list (dmd-service | |
869 | (provision '(guix-publish)) | |
870 | (requirement '(guix-daemon)) | |
871 | (start #~(make-forkexec-constructor | |
872 | (list (string-append #$guix "/bin/guix") | |
873 | "publish" "-u" "guix-publish" | |
874 | "-p" #$(number->string port) | |
875 | (string-append "--listen=" #$host)))) | |
876 | (stop #~(make-kill-destructor))))))) | |
877 | ||
878 | (define %guix-publish-accounts | |
879 | (list (user-group (name "guix-publish") (system? #t)) | |
880 | (user-account | |
881 | (name "guix-publish") | |
882 | (group "guix-publish") | |
883 | (system? #t) | |
884 | (comment "guix publish user") | |
885 | (home-directory "/var/empty") | |
886 | (shell #~(string-append #$shadow "/sbin/nologin"))))) | |
887 | ||
888 | (define guix-publish-service-type | |
889 | (service-type (name 'guix-publish) | |
890 | (extensions | |
891 | (list (service-extension dmd-root-service-type | |
892 | guix-publish-dmd-service) | |
893 | (service-extension account-service-type | |
894 | (const %guix-publish-accounts)))))) | |
895 | ||
896 | (define* (guix-publish-service #:key (guix guix) (port 80) (host "localhost")) | |
897 | "Return a service that runs @command{guix publish} listening on @var{host} | |
898 | and @var{port} (@pxref{Invoking guix publish}). | |
899 | ||
900 | This assumes that @file{/etc/guix} already contains a signing key pair as | |
901 | created by @command{guix archive --generate-key} (@pxref{Invoking guix | |
902 | archive}). If that is not the case, the service will fail to start." | |
903 | (service guix-publish-service-type | |
904 | (guix-publish-configuration (guix guix) (port port) (host host)))) | |
905 | ||
0adfe95a LC |
906 | \f |
907 | ;;; | |
908 | ;;; Udev. | |
909 | ;;; | |
910 | ||
911 | (define-record-type* <udev-configuration> | |
912 | udev-configuration make-udev-configuration | |
913 | udev-configuration? | |
914 | (udev udev-configuration-udev ;<package> | |
915 | (default udev)) | |
916 | (rules udev-configuration-rules ;list of <package> | |
917 | (default '()))) | |
db4fdc04 | 918 | |
ecd06ca9 LC |
919 | (define (udev-rules-union packages) |
920 | "Return the union of the @code{lib/udev/rules.d} directories found in each | |
921 | item of @var{packages}." | |
922 | (define build | |
923 | #~(begin | |
924 | (use-modules (guix build union) | |
925 | (guix build utils) | |
926 | (srfi srfi-1) | |
927 | (srfi srfi-26)) | |
928 | ||
929 | (define %standard-locations | |
930 | '("/lib/udev/rules.d" "/libexec/udev/rules.d")) | |
931 | ||
932 | (define (rules-sub-directory directory) | |
933 | ;; Return the sub-directory of DIRECTORY containing udev rules, or | |
934 | ;; #f if none was found. | |
935 | (find directory-exists? | |
936 | (map (cut string-append directory <>) %standard-locations))) | |
937 | ||
938 | (mkdir-p (string-append #$output "/lib/udev")) | |
939 | (union-build (string-append #$output "/lib/udev/rules.d") | |
940 | (filter-map rules-sub-directory '#$packages)))) | |
941 | ||
be1c2c54 LC |
942 | (computed-file "udev-rules" build |
943 | #:modules '((guix build union) | |
944 | (guix build utils)))) | |
ecd06ca9 | 945 | |
7f28bf9a LC |
946 | (define* (kvm-udev-rule) |
947 | "Return a directory with a udev rule that changes the group of | |
948 | @file{/dev/kvm} to \"kvm\" and makes it #o660." | |
949 | ;; Apparently QEMU-KVM used to ship this rule, but now we have to add it by | |
950 | ;; ourselves. | |
be1c2c54 LC |
951 | (computed-file "kvm-udev-rules" |
952 | #~(begin | |
953 | (use-modules (guix build utils)) | |
954 | ||
955 | (define rules.d | |
956 | (string-append #$output "/lib/udev/rules.d")) | |
957 | ||
958 | (mkdir-p rules.d) | |
959 | (call-with-output-file | |
960 | (string-append rules.d "/90-kvm.rules") | |
961 | (lambda (port) | |
962 | ;; Build users are part of the "kvm" group, so we | |
963 | ;; can fearlessly make /dev/kvm 660 (see | |
964 | ;; <http://bugs.gnu.org/18994>, for background.) | |
965 | (display "\ | |
64720891 | 966 | KERNEL==\"kvm\", GROUP=\"kvm\", MODE=\"0660\"\n" port)))) |
be1c2c54 | 967 | #:modules '((guix build utils)))) |
7f28bf9a | 968 | |
0adfe95a LC |
969 | (define udev-dmd-service |
970 | ;; Return a <dmd-service> for UDEV with RULES. | |
971 | (match-lambda | |
972 | (($ <udev-configuration> udev rules) | |
973 | (let* ((rules (udev-rules-union (cons* udev (kvm-udev-rule) rules))) | |
974 | (udev.conf (computed-file "udev.conf" | |
975 | #~(call-with-output-file #$output | |
976 | (lambda (port) | |
977 | (format port | |
978 | "udev_rules=\"~a/lib/udev/rules.d\"\n" | |
979 | #$rules)))))) | |
980 | (list | |
981 | (dmd-service | |
982 | (provision '(udev)) | |
983 | ||
984 | ;; Udev needs /dev to be a 'devtmpfs' mount so that new device nodes can | |
985 | ;; be added: see | |
986 | ;; <http://www.linuxfromscratch.org/lfs/view/development/chapter07/udev.html>. | |
987 | (requirement '(root-file-system)) | |
988 | ||
989 | (documentation "Populate the /dev directory, dynamically.") | |
990 | (start #~(lambda () | |
991 | (define find | |
992 | (@ (srfi srfi-1) find)) | |
993 | ||
994 | (define udevd | |
995 | ;; Choose the right 'udevd'. | |
996 | (find file-exists? | |
997 | (map (lambda (suffix) | |
998 | (string-append #$udev suffix)) | |
999 | '("/libexec/udev/udevd" ;udev | |
1000 | "/sbin/udevd")))) ;eudev | |
1001 | ||
1002 | (define (wait-for-udevd) | |
1003 | ;; Wait until someone's listening on udevd's control | |
1004 | ;; socket. | |
1005 | (let ((sock (socket AF_UNIX SOCK_SEQPACKET 0))) | |
1006 | (let try () | |
1007 | (catch 'system-error | |
1008 | (lambda () | |
1009 | (connect sock PF_UNIX "/run/udev/control") | |
1010 | (close-port sock)) | |
1011 | (lambda args | |
1012 | (format #t "waiting for udevd...~%") | |
1013 | (usleep 500000) | |
1014 | (try)))))) | |
1015 | ||
1016 | ;; Allow udev to find the modules. | |
1017 | (setenv "LINUX_MODULE_DIRECTORY" | |
1018 | "/run/booted-system/kernel/lib/modules") | |
1019 | ||
1020 | ;; The first one is for udev, the second one for eudev. | |
1021 | (setenv "UDEV_CONFIG_FILE" #$udev.conf) | |
1022 | (setenv "EUDEV_RULES_DIRECTORY" | |
1023 | (string-append #$rules "/lib/udev/rules.d")) | |
1024 | ||
1025 | (let ((pid (primitive-fork))) | |
1026 | (case pid | |
1027 | ((0) | |
1028 | (exec-command (list udevd))) | |
1029 | (else | |
1030 | ;; Wait until udevd is up and running. This | |
1031 | ;; appears to be needed so that the events | |
1032 | ;; triggered below are actually handled. | |
1033 | (wait-for-udevd) | |
1034 | ||
1035 | ;; Trigger device node creation. | |
1036 | (system* (string-append #$udev "/bin/udevadm") | |
1037 | "trigger" "--action=add") | |
1038 | ||
1039 | ;; Wait for things to settle down. | |
1040 | (system* (string-append #$udev "/bin/udevadm") | |
1041 | "settle") | |
1042 | pid))))) | |
1043 | (stop #~(make-kill-destructor)) | |
1044 | ||
1045 | ;; When halting the system, 'udev' is actually killed by | |
1046 | ;; 'user-processes', i.e., before its own 'stop' method was called. | |
1047 | ;; Thus, make sure it is not respawned. | |
1048 | (respawn? #f))))))) | |
1049 | ||
1050 | (define udev-service-type | |
1051 | (service-type (name 'udev) | |
1052 | (extensions | |
1053 | (list (service-extension dmd-root-service-type | |
1054 | udev-dmd-service))) | |
1055 | ||
1056 | (compose concatenate) ;concatenate the list of rules | |
1057 | (extend (lambda (config rules) | |
1058 | (match config | |
1059 | (($ <udev-configuration> udev initial-rules) | |
1060 | (udev-configuration | |
1061 | (udev udev) | |
1062 | (rules (append initial-rules rules))))))))) | |
1063 | ||
8a7330fd | 1064 | (define* (udev-service #:key (udev eudev) (rules '())) |
ecd06ca9 LC |
1065 | "Run @var{udev}, which populates the @file{/dev} directory dynamically. Get |
1066 | extra rules from the packages listed in @var{rules}." | |
0adfe95a LC |
1067 | (service udev-service-type |
1068 | (udev-configuration (udev udev) (rules rules)))) | |
1069 | ||
1070 | (define device-mapping-service-type | |
1071 | (dmd-service-type | |
00184239 | 1072 | 'device-mapping |
0adfe95a LC |
1073 | (match-lambda |
1074 | ((target open close) | |
1075 | (dmd-service | |
1076 | (provision (list (symbol-append 'device-mapping- (string->symbol target)))) | |
1077 | (requirement '(udev)) | |
1078 | (documentation "Map a device node using Linux's device mapper.") | |
1079 | (start #~(lambda () #$open)) | |
1080 | (stop #~(lambda _ (not #$close))) | |
1081 | (respawn? #f)))))) | |
151a2c07 | 1082 | |
722554a3 | 1083 | (define (device-mapping-service target open close) |
5dae0186 | 1084 | "Return a service that maps device @var{target}, a string such as |
722554a3 LC |
1085 | @code{\"home\"} (meaning @code{/dev/mapper/home}). Evaluate @var{open}, a |
1086 | gexp, to open it, and evaluate @var{close} to close it." | |
0adfe95a LC |
1087 | (service device-mapping-service-type |
1088 | (list target open close))) | |
1089 | ||
1090 | (define swap-service-type | |
1091 | (dmd-service-type | |
00184239 | 1092 | 'swap |
0adfe95a LC |
1093 | (lambda (device) |
1094 | (define requirement | |
1095 | (if (string-prefix? "/dev/mapper/" device) | |
1096 | (list (symbol-append 'device-mapping- | |
1097 | (string->symbol (basename device)))) | |
1098 | '())) | |
1099 | ||
1100 | (dmd-service | |
1101 | (provision (list (symbol-append 'swap- (string->symbol device)))) | |
1102 | (requirement `(udev ,@requirement)) | |
1103 | (documentation "Enable the given swap device.") | |
1104 | (start #~(lambda () | |
1105 | (restart-on-EINTR (swapon #$device)) | |
1106 | #t)) | |
1107 | (stop #~(lambda _ | |
1108 | (restart-on-EINTR (swapoff #$device)) | |
1109 | #f)) | |
1110 | (respawn? #f))))) | |
5dae0186 | 1111 | |
2a13d05e LC |
1112 | (define (swap-service device) |
1113 | "Return a service that uses @var{device} as a swap device." | |
0adfe95a | 1114 | (service swap-service-type device)) |
2a13d05e | 1115 | |
8b198abe LC |
1116 | (define %base-services |
1117 | ;; Convenience variable holding the basic services. | |
ce8a6dfc | 1118 | (let ((motd (plain-file "motd" " |
8b198abe | 1119 | This is the GNU operating system, welcome!\n\n"))) |
62ca0fdf LC |
1120 | (list (console-font-service "tty1") |
1121 | (console-font-service "tty2") | |
1122 | (console-font-service "tty3") | |
1123 | (console-font-service "tty4") | |
1124 | (console-font-service "tty5") | |
1125 | (console-font-service "tty6") | |
1126 | ||
66e4f01c LC |
1127 | (mingetty-service (mingetty-configuration |
1128 | (tty "tty1") (motd motd))) | |
1129 | (mingetty-service (mingetty-configuration | |
1130 | (tty "tty2") (motd motd))) | |
1131 | (mingetty-service (mingetty-configuration | |
1132 | (tty "tty3") (motd motd))) | |
1133 | (mingetty-service (mingetty-configuration | |
1134 | (tty "tty4") (motd motd))) | |
1135 | (mingetty-service (mingetty-configuration | |
1136 | (tty "tty5") (motd motd))) | |
1137 | (mingetty-service (mingetty-configuration | |
1138 | (tty "tty6") (motd motd))) | |
1139 | ||
4a3b3b07 LC |
1140 | (static-networking-service "lo" "127.0.0.1" |
1141 | #:provision '(loopback)) | |
8b198abe LC |
1142 | (syslog-service) |
1143 | (guix-service) | |
151a2c07 | 1144 | (nscd-service) |
ecd06ca9 | 1145 | |
52bd5734 LC |
1146 | ;; The LVM2 rules are needed as soon as LVM2 or the device-mapper is |
1147 | ;; used, so enable them by default. The FUSE and ALSA rules are | |
1148 | ;; less critical, but handy. | |
68ac258b | 1149 | (udev-service #:rules (list lvm2 fuse alsa-utils crda))))) |
8b198abe | 1150 | |
db4fdc04 | 1151 | ;;; base.scm ends here |