]>
Commit | Line | Data |
---|---|---|
d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd 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 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd 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 GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
25ac040b | 22 | #include <errno.h> |
f94ea366 | 23 | #include <sys/epoll.h> |
25ac040b LP |
24 | #include <libudev.h> |
25 | ||
87f0e418 | 26 | #include "unit.h" |
5cb5a6ff LP |
27 | #include "device.h" |
28 | #include "strv.h" | |
25ac040b | 29 | #include "log.h" |
9e2f7c11 | 30 | #include "unit-name.h" |
4139c1b2 | 31 | #include "dbus-device.h" |
f6a6225e | 32 | #include "def.h" |
5cb5a6ff | 33 | |
f50e0a01 LP |
34 | static const UnitActiveState state_translation_table[_DEVICE_STATE_MAX] = { |
35 | [DEVICE_DEAD] = UNIT_INACTIVE, | |
73608ed9 | 36 | [DEVICE_PLUGGED] = UNIT_ACTIVE |
f50e0a01 LP |
37 | }; |
38 | ||
8fe914ec LP |
39 | static void device_unset_sysfs(Device *d) { |
40 | Device *first; | |
41 | ||
42 | assert(d); | |
43 | ||
a7f241db LP |
44 | if (!d->sysfs) |
45 | return; | |
46 | ||
47 | /* Remove this unit from the chain of devices which share the | |
48 | * same sysfs path. */ | |
49 | first = hashmap_get(d->meta.manager->devices_by_sysfs, d->sysfs); | |
50 | LIST_REMOVE(Device, same_sysfs, first, d); | |
8fe914ec | 51 | |
a7f241db LP |
52 | if (first) |
53 | hashmap_remove_and_replace(d->meta.manager->devices_by_sysfs, d->sysfs, first->sysfs, first); | |
54 | else | |
55 | hashmap_remove(d->meta.manager->devices_by_sysfs, d->sysfs); | |
56 | ||
57 | free(d->sysfs); | |
58 | d->sysfs = NULL; | |
8fe914ec LP |
59 | } |
60 | ||
faf919f1 LP |
61 | static void device_init(Unit *u) { |
62 | Device *d = DEVICE(u); | |
63 | ||
64 | assert(d); | |
65 | assert(d->meta.load_state == UNIT_STUB); | |
66 | ||
8fe914ec LP |
67 | /* In contrast to all other unit types we timeout jobs waiting |
68 | * for devices by default. This is because they otherwise wait | |
35b8ca3a | 69 | * indefinitely for plugged in devices, something which cannot |
8fe914ec LP |
70 | * happen for the other units since their operations time out |
71 | * anyway. */ | |
faf919f1 LP |
72 | d->meta.job_timeout = DEFAULT_TIMEOUT_USEC; |
73 | } | |
74 | ||
87f0e418 LP |
75 | static void device_done(Unit *u) { |
76 | Device *d = DEVICE(u); | |
034c6ed7 LP |
77 | |
78 | assert(d); | |
e537352b | 79 | |
8fe914ec | 80 | device_unset_sysfs(d); |
e537352b LP |
81 | } |
82 | ||
f50e0a01 LP |
83 | static void device_set_state(Device *d, DeviceState state) { |
84 | DeviceState old_state; | |
85 | assert(d); | |
5cb5a6ff | 86 | |
f50e0a01 LP |
87 | old_state = d->state; |
88 | d->state = state; | |
5cb5a6ff | 89 | |
e537352b | 90 | if (state != old_state) |
40d50879 | 91 | log_debug("%s changed %s -> %s", |
4cd1fbcc | 92 | d->meta.id, |
a16e1123 LP |
93 | device_state_to_string(old_state), |
94 | device_state_to_string(state)); | |
f50e0a01 | 95 | |
e2f3b44c | 96 | unit_notify(UNIT(d), state_translation_table[old_state], state_translation_table[state], true); |
f50e0a01 LP |
97 | } |
98 | ||
99 | static int device_coldplug(Unit *u) { | |
100 | Device *d = DEVICE(u); | |
101 | ||
102 | assert(d); | |
103 | assert(d->state == DEVICE_DEAD); | |
104 | ||
105 | if (d->sysfs) | |
73608ed9 | 106 | device_set_state(d, DEVICE_PLUGGED); |
f50e0a01 LP |
107 | |
108 | return 0; | |
109 | } | |
110 | ||
111 | static void device_dump(Unit *u, FILE *f, const char *prefix) { | |
25ac040b | 112 | Device *d = DEVICE(u); |
5cb5a6ff | 113 | |
25ac040b | 114 | assert(d); |
5cb5a6ff LP |
115 | |
116 | fprintf(f, | |
25ac040b LP |
117 | "%sDevice State: %s\n" |
118 | "%sSysfs Path: %s\n", | |
a16e1123 | 119 | prefix, device_state_to_string(d->state), |
f50e0a01 LP |
120 | prefix, strna(d->sysfs)); |
121 | } | |
122 | ||
123 | static UnitActiveState device_active_state(Unit *u) { | |
124 | assert(u); | |
125 | ||
126 | return state_translation_table[DEVICE(u)->state]; | |
25ac040b LP |
127 | } |
128 | ||
10a94420 LP |
129 | static const char *device_sub_state_to_string(Unit *u) { |
130 | assert(u); | |
131 | ||
a16e1123 | 132 | return device_state_to_string(DEVICE(u)->state); |
10a94420 LP |
133 | } |
134 | ||
8fe914ec | 135 | static int device_add_escaped_name(Unit *u, const char *dn) { |
25ac040b LP |
136 | char *e; |
137 | int r; | |
138 | ||
139 | assert(u); | |
140 | assert(dn); | |
141 | assert(dn[0] == '/'); | |
142 | ||
a16e1123 | 143 | if (!(e = unit_name_from_path(dn, ".device"))) |
25ac040b LP |
144 | return -ENOMEM; |
145 | ||
146 | r = unit_add_name(u, e); | |
147 | free(e); | |
148 | ||
149 | if (r < 0 && r != -EEXIST) | |
150 | return r; | |
151 | ||
152 | return 0; | |
153 | } | |
154 | ||
aab14b13 LP |
155 | static int device_find_escape_name(Manager *m, const char *dn, Unit **_u) { |
156 | char *e; | |
157 | Unit *u; | |
158 | ||
159 | assert(m); | |
160 | assert(dn); | |
161 | assert(dn[0] == '/'); | |
162 | assert(_u); | |
163 | ||
a16e1123 | 164 | if (!(e = unit_name_from_path(dn, ".device"))) |
aab14b13 LP |
165 | return -ENOMEM; |
166 | ||
167 | u = manager_get_unit(m, e); | |
168 | free(e); | |
169 | ||
170 | if (u) { | |
171 | *_u = u; | |
172 | return 1; | |
173 | } | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
8fe914ec LP |
178 | static int device_update_unit(Manager *m, struct udev_device *dev, const char *path, bool main) { |
179 | const char *sysfs, *model; | |
25ac040b LP |
180 | Unit *u = NULL; |
181 | int r; | |
25ac040b | 182 | bool delete; |
25ac040b LP |
183 | |
184 | assert(m); | |
185 | ||
7f275a9f LP |
186 | if (!(sysfs = udev_device_get_syspath(dev))) |
187 | return -ENOMEM; | |
188 | ||
8fe914ec | 189 | if ((r = device_find_escape_name(m, path, &u)) < 0) |
aab14b13 | 190 | return r; |
25ac040b | 191 | |
5845b46b | 192 | if (u && DEVICE(u)->sysfs && !path_equal(DEVICE(u)->sysfs, sysfs)) |
8fe914ec | 193 | return -EEXIST; |
25ac040b | 194 | |
aab14b13 LP |
195 | if (!u) { |
196 | delete = true; | |
197 | ||
198 | if (!(u = unit_new(m))) | |
199 | return -ENOMEM; | |
25ac040b | 200 | |
8fe914ec | 201 | if ((r = device_add_escaped_name(u, path)) < 0) |
25ac040b LP |
202 | goto fail; |
203 | ||
ee6cb288 LP |
204 | unit_add_to_load_queue(u); |
205 | } else | |
206 | delete = false; | |
207 | ||
208 | /* If this was created via some dependency and has not | |
209 | * actually been seen yet ->sysfs will not be | |
210 | * initialized. Hence initialize it if necessary. */ | |
211 | ||
212 | if (!DEVICE(u)->sysfs) { | |
213 | Device *first; | |
214 | ||
25ac040b LP |
215 | if (!(DEVICE(u)->sysfs = strdup(sysfs))) { |
216 | r = -ENOMEM; | |
217 | goto fail; | |
218 | } | |
219 | ||
8fe914ec LP |
220 | if (!m->devices_by_sysfs) |
221 | if (!(m->devices_by_sysfs = hashmap_new(string_hash_func, string_compare_func))) { | |
222 | r = -ENOMEM; | |
223 | goto fail; | |
224 | } | |
25ac040b | 225 | |
8fe914ec LP |
226 | first = hashmap_get(m->devices_by_sysfs, sysfs); |
227 | LIST_PREPEND(Device, same_sysfs, first, DEVICE(u)); | |
228 | ||
229 | if ((r = hashmap_replace(m->devices_by_sysfs, DEVICE(u)->sysfs, first)) < 0) | |
25ac040b | 230 | goto fail; |
ee6cb288 | 231 | } |
8fe914ec | 232 | |
aab14b13 LP |
233 | if ((model = udev_device_get_property_value(dev, "ID_MODEL_FROM_DATABASE")) || |
234 | (model = udev_device_get_property_value(dev, "ID_MODEL"))) { | |
235 | if ((r = unit_set_description(u, model)) < 0) | |
236 | goto fail; | |
4e85aff4 | 237 | } else |
8fe914ec | 238 | if ((r = unit_set_description(u, path)) < 0) |
4e85aff4 | 239 | goto fail; |
aab14b13 | 240 | |
8fe914ec LP |
241 | if (main) { |
242 | /* The additional systemd udev properties we only | |
243 | * interpret for the main object */ | |
244 | const char *wants, *alias; | |
245 | ||
246 | if ((alias = udev_device_get_property_value(dev, "SYSTEMD_ALIAS"))) { | |
247 | if (!is_path(alias)) | |
248 | log_warning("SYSTEMD_ALIAS for %s is not a path, ignoring: %s", sysfs, alias); | |
249 | else { | |
250 | if ((r = device_add_escaped_name(u, alias)) < 0) | |
251 | goto fail; | |
b866264a | 252 | } |
8fe914ec | 253 | } |
25ac040b | 254 | |
8fe914ec LP |
255 | if ((wants = udev_device_get_property_value(dev, "SYSTEMD_WANTS"))) { |
256 | char *state, *w; | |
257 | size_t l; | |
25ac040b | 258 | |
8fe914ec LP |
259 | FOREACH_WORD_QUOTED(w, l, wants, state) { |
260 | char *e; | |
261 | ||
262 | if (!(e = strndup(w, l))) { | |
263 | r = -ENOMEM; | |
264 | goto fail; | |
265 | } | |
266 | ||
267 | r = unit_add_dependency_by_name(u, UNIT_WANTS, e, NULL, true); | |
268 | free(e); | |
269 | ||
270 | if (r < 0) | |
271 | goto fail; | |
272 | } | |
25ac040b | 273 | } |
a7f241db | 274 | } |
f94ea366 | 275 | |
c1e1601e | 276 | unit_add_to_dbus_queue(u); |
25ac040b LP |
277 | return 0; |
278 | ||
279 | fail: | |
ee5f3479 LP |
280 | log_warning("Failed to load device unit: %s", strerror(-r)); |
281 | ||
25ac040b LP |
282 | if (delete && u) |
283 | unit_free(u); | |
ee5f3479 | 284 | |
25ac040b LP |
285 | return r; |
286 | } | |
287 | ||
8fe914ec LP |
288 | static int device_process_new_device(Manager *m, struct udev_device *dev, bool update_state) { |
289 | const char *sysfs, *dn; | |
290 | struct udev_list_entry *item = NULL, *first = NULL; | |
291 | ||
292 | assert(m); | |
293 | ||
294 | if (!(sysfs = udev_device_get_syspath(dev))) | |
295 | return -ENOMEM; | |
296 | ||
297 | /* Add the main unit named after the sysfs path */ | |
298 | device_update_unit(m, dev, sysfs, true); | |
299 | ||
300 | /* Add an additional unit for the device node */ | |
301 | if ((dn = udev_device_get_devnode(dev))) | |
302 | device_update_unit(m, dev, dn, false); | |
303 | ||
304 | /* Add additional units for all symlinks */ | |
305 | first = udev_device_get_devlinks_list_entry(dev); | |
306 | udev_list_entry_foreach(item, first) { | |
307 | const char *p; | |
5845b46b | 308 | struct stat st; |
8fe914ec LP |
309 | |
310 | /* Don't bother with the /dev/block links */ | |
311 | p = udev_list_entry_get_name(item); | |
312 | ||
313 | if (path_startswith(p, "/dev/block/") || | |
314 | path_startswith(p, "/dev/char/")) | |
315 | continue; | |
316 | ||
5845b46b LP |
317 | /* Verify that the symlink in the FS actually belongs |
318 | * to this device. This is useful to deal with | |
319 | * conflicting devices, e.g. when two disks want the | |
320 | * same /dev/disk/by-label/xxx link because they have | |
321 | * the same label. We want to make sure that the same | |
322 | * device that won the symlink wins in systemd, so we | |
323 | * check the device node major/minor*/ | |
324 | if (stat(p, &st) >= 0) | |
325 | if ((!S_ISBLK(st.st_mode) && !S_ISCHR(st.st_mode)) || | |
326 | st.st_rdev != udev_device_get_devnum(dev)) | |
327 | continue; | |
328 | ||
8fe914ec LP |
329 | device_update_unit(m, dev, p, false); |
330 | } | |
331 | ||
332 | if (update_state) { | |
333 | Device *d, *l; | |
334 | ||
335 | manager_dispatch_load_queue(m); | |
336 | ||
337 | l = hashmap_get(m->devices_by_sysfs, sysfs); | |
338 | LIST_FOREACH(same_sysfs, d, l) | |
339 | device_set_state(d, DEVICE_PLUGGED); | |
340 | } | |
341 | ||
342 | return 0; | |
343 | } | |
344 | ||
f94ea366 | 345 | static int device_process_path(Manager *m, const char *path, bool update_state) { |
25ac040b LP |
346 | int r; |
347 | struct udev_device *dev; | |
348 | ||
349 | assert(m); | |
350 | assert(path); | |
351 | ||
352 | if (!(dev = udev_device_new_from_syspath(m->udev, path))) { | |
353 | log_warning("Failed to get udev device object from udev for path %s.", path); | |
354 | return -ENOMEM; | |
355 | } | |
356 | ||
f94ea366 | 357 | r = device_process_new_device(m, dev, update_state); |
25ac040b LP |
358 | udev_device_unref(dev); |
359 | return r; | |
360 | } | |
361 | ||
f94ea366 LP |
362 | static int device_process_removed_device(Manager *m, struct udev_device *dev) { |
363 | const char *sysfs; | |
f94ea366 LP |
364 | Device *d; |
365 | ||
366 | assert(m); | |
367 | assert(dev); | |
368 | ||
369 | if (!(sysfs = udev_device_get_syspath(dev))) | |
370 | return -ENOMEM; | |
371 | ||
8fe914ec LP |
372 | /* Remove all units of this sysfs path */ |
373 | while ((d = hashmap_get(m->devices_by_sysfs, sysfs))) { | |
374 | device_unset_sysfs(d); | |
375 | device_set_state(d, DEVICE_DEAD); | |
376 | } | |
f94ea366 | 377 | |
f94ea366 LP |
378 | return 0; |
379 | } | |
380 | ||
a7f241db LP |
381 | static Unit *device_following(Unit *u) { |
382 | Device *d = DEVICE(u); | |
383 | Device *other, *first = NULL; | |
384 | ||
385 | assert(d); | |
386 | ||
387 | if (startswith(u->meta.id, "sys-")) | |
388 | return NULL; | |
389 | ||
390 | /* Make everybody follow the unit that's named after the sysfs path */ | |
391 | for (other = d->same_sysfs_next; other; other = other->same_sysfs_next) | |
392 | if (startswith(other->meta.id, "sys-")) | |
393 | return UNIT(other); | |
394 | ||
395 | for (other = d->same_sysfs_prev; other; other = other->same_sysfs_prev) { | |
396 | if (startswith(other->meta.id, "sys-")) | |
397 | return UNIT(other); | |
398 | ||
399 | first = other; | |
400 | } | |
401 | ||
402 | return UNIT(first); | |
403 | } | |
404 | ||
6210e7fc LP |
405 | static int device_following_set(Unit *u, Set **_s) { |
406 | Device *d = DEVICE(u); | |
407 | Device *other; | |
408 | Set *s; | |
409 | int r; | |
410 | ||
411 | assert(d); | |
412 | assert(_s); | |
413 | ||
414 | if (!d->same_sysfs_prev && !d->same_sysfs_next) { | |
415 | *_s = NULL; | |
416 | return 0; | |
417 | } | |
418 | ||
419 | if (!(s = set_new(NULL, NULL))) | |
420 | return -ENOMEM; | |
421 | ||
422 | for (other = d->same_sysfs_next; other; other = other->same_sysfs_next) | |
423 | if ((r = set_put(s, other)) < 0) | |
424 | goto fail; | |
425 | ||
426 | for (other = d->same_sysfs_prev; other; other = other->same_sysfs_prev) | |
427 | if ((r = set_put(s, other)) < 0) | |
428 | goto fail; | |
429 | ||
430 | *_s = s; | |
431 | return 1; | |
432 | ||
433 | fail: | |
434 | set_free(s); | |
435 | return r; | |
436 | } | |
437 | ||
25ac040b LP |
438 | static void device_shutdown(Manager *m) { |
439 | assert(m); | |
440 | ||
a16e1123 | 441 | if (m->udev_monitor) { |
f94ea366 | 442 | udev_monitor_unref(m->udev_monitor); |
a16e1123 LP |
443 | m->udev_monitor = NULL; |
444 | } | |
f94ea366 | 445 | |
a16e1123 | 446 | if (m->udev) { |
25ac040b | 447 | udev_unref(m->udev); |
a16e1123 LP |
448 | m->udev = NULL; |
449 | } | |
8fe914ec LP |
450 | |
451 | hashmap_free(m->devices_by_sysfs); | |
452 | m->devices_by_sysfs = NULL; | |
25ac040b LP |
453 | } |
454 | ||
455 | static int device_enumerate(Manager *m) { | |
f94ea366 | 456 | struct epoll_event ev; |
25ac040b LP |
457 | int r; |
458 | struct udev_enumerate *e = NULL; | |
459 | struct udev_list_entry *item = NULL, *first = NULL; | |
460 | ||
461 | assert(m); | |
462 | ||
a16e1123 LP |
463 | if (!m->udev) { |
464 | if (!(m->udev = udev_new())) | |
465 | return -ENOMEM; | |
25ac040b | 466 | |
a16e1123 LP |
467 | if (!(m->udev_monitor = udev_monitor_new_from_netlink(m->udev, "udev"))) { |
468 | r = -ENOMEM; | |
469 | goto fail; | |
470 | } | |
f94ea366 | 471 | |
47ae6e67 LP |
472 | /* This will fail if we are unprivileged, but that |
473 | * should not matter much, as user instances won't run | |
474 | * during boot. */ | |
475 | udev_monitor_set_receive_buffer_size(m->udev_monitor, 128*1024*1024); | |
99448c1f | 476 | |
e1ce2c27 LP |
477 | if (udev_monitor_filter_add_match_tag(m->udev_monitor, "systemd") < 0) { |
478 | r = -ENOMEM; | |
479 | goto fail; | |
480 | } | |
481 | ||
a16e1123 LP |
482 | if (udev_monitor_enable_receiving(m->udev_monitor) < 0) { |
483 | r = -EIO; | |
484 | goto fail; | |
485 | } | |
f94ea366 | 486 | |
a16e1123 LP |
487 | m->udev_watch.type = WATCH_UDEV; |
488 | m->udev_watch.fd = udev_monitor_get_fd(m->udev_monitor); | |
f94ea366 | 489 | |
a16e1123 LP |
490 | zero(ev); |
491 | ev.events = EPOLLIN; | |
492 | ev.data.ptr = &m->udev_watch; | |
f94ea366 | 493 | |
a16e1123 LP |
494 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_watch.fd, &ev) < 0) |
495 | return -errno; | |
496 | } | |
f94ea366 | 497 | |
4f2d528d LP |
498 | if (!(e = udev_enumerate_new(m->udev))) { |
499 | r = -ENOMEM; | |
500 | goto fail; | |
501 | } | |
e1ce2c27 LP |
502 | if (udev_enumerate_add_match_tag(e, "systemd") < 0) { |
503 | r = -EIO; | |
504 | goto fail; | |
505 | } | |
25ac040b | 506 | |
4f2d528d LP |
507 | if (udev_enumerate_scan_devices(e) < 0) { |
508 | r = -EIO; | |
509 | goto fail; | |
510 | } | |
25ac040b | 511 | |
4f2d528d LP |
512 | first = udev_enumerate_get_list_entry(e); |
513 | udev_list_entry_foreach(item, first) | |
514 | device_process_path(m, udev_list_entry_get_name(item), false); | |
25ac040b | 515 | |
4f2d528d | 516 | udev_enumerate_unref(e); |
25ac040b LP |
517 | return 0; |
518 | ||
519 | fail: | |
520 | if (e) | |
521 | udev_enumerate_unref(e); | |
522 | ||
523 | device_shutdown(m); | |
524 | return r; | |
5cb5a6ff LP |
525 | } |
526 | ||
f94ea366 LP |
527 | void device_fd_event(Manager *m, int events) { |
528 | struct udev_device *dev; | |
529 | int r; | |
2958c886 | 530 | const char *action, *ready; |
f94ea366 LP |
531 | |
532 | assert(m); | |
99448c1f KS |
533 | |
534 | if (events != EPOLLIN) { | |
535 | static RATELIMIT_DEFINE(limit, 10*USEC_PER_SEC, 5); | |
536 | ||
537 | if (!ratelimit_test(&limit)) | |
538 | log_error("Failed to get udev event: %m"); | |
2e6081f2 KS |
539 | if (!(events & EPOLLIN)) |
540 | return; | |
99448c1f | 541 | } |
f94ea366 | 542 | |
f94ea366 | 543 | if (!(dev = udev_monitor_receive_device(m->udev_monitor))) { |
99448c1f KS |
544 | /* |
545 | * libudev might filter-out devices which pass the bloom filter, | |
35b8ca3a | 546 | * so getting NULL here is not necessarily an error |
99448c1f | 547 | */ |
f94ea366 LP |
548 | return; |
549 | } | |
550 | ||
551 | if (!(action = udev_device_get_action(dev))) { | |
552 | log_error("Failed to get udev action string."); | |
553 | goto fail; | |
554 | } | |
555 | ||
2958c886 LP |
556 | ready = udev_device_get_property_value(dev, "SYSTEMD_READY"); |
557 | ||
558 | if (streq(action, "remove") || (ready && parse_boolean(ready) == 0)) { | |
f94ea366 LP |
559 | if ((r = device_process_removed_device(m, dev)) < 0) { |
560 | log_error("Failed to process udev device event: %s", strerror(-r)); | |
561 | goto fail; | |
562 | } | |
563 | } else { | |
564 | if ((r = device_process_new_device(m, dev, true)) < 0) { | |
565 | log_error("Failed to process udev device event: %s", strerror(-r)); | |
566 | goto fail; | |
567 | } | |
568 | } | |
569 | ||
570 | fail: | |
571 | udev_device_unref(dev); | |
572 | } | |
573 | ||
a16e1123 LP |
574 | static const char* const device_state_table[_DEVICE_STATE_MAX] = { |
575 | [DEVICE_DEAD] = "dead", | |
73608ed9 | 576 | [DEVICE_PLUGGED] = "plugged" |
a16e1123 LP |
577 | }; |
578 | ||
579 | DEFINE_STRING_TABLE_LOOKUP(device_state, DeviceState); | |
580 | ||
87f0e418 | 581 | const UnitVTable device_vtable = { |
5cb5a6ff LP |
582 | .suffix = ".device", |
583 | ||
9e2f7c11 | 584 | .no_instances = true, |
41447faf | 585 | .no_snapshots = true, |
c497c7a9 | 586 | .no_isolate = true, |
9e2f7c11 | 587 | |
faf919f1 LP |
588 | .init = device_init, |
589 | ||
e537352b | 590 | .load = unit_load_fragment_and_dropin_optional, |
034c6ed7 | 591 | .done = device_done, |
f50e0a01 LP |
592 | .coldplug = device_coldplug, |
593 | ||
5cb5a6ff LP |
594 | .dump = device_dump, |
595 | ||
f50e0a01 | 596 | .active_state = device_active_state, |
10a94420 | 597 | .sub_state_to_string = device_sub_state_to_string, |
25ac040b | 598 | |
c4e2ceae | 599 | .bus_interface = "org.freedesktop.systemd1.Device", |
4139c1b2 | 600 | .bus_message_handler = bus_device_message_handler, |
c4e2ceae | 601 | .bus_invalidating_properties = bus_device_invalidating_properties, |
4139c1b2 | 602 | |
a7f241db | 603 | .following = device_following, |
6210e7fc | 604 | .following_set = device_following_set, |
a7f241db | 605 | |
f50e0a01 LP |
606 | .enumerate = device_enumerate, |
607 | .shutdown = device_shutdown | |
5cb5a6ff | 608 | }; |