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20263082 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
20263082 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
20263082 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
20263082 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
23 | #include <pwd.h> | |
24 | #include <libudev.h> | |
25 | #include <fcntl.h> | |
26 | #include <string.h> | |
27 | #include <unistd.h> | |
28 | #include <sys/epoll.h> | |
5eda94dd LP |
29 | #include <sys/ioctl.h> |
30 | #include <linux/vt.h> | |
20263082 | 31 | |
81527be1 LP |
32 | #include <systemd/sd-daemon.h> |
33 | ||
20263082 LP |
34 | #include "logind.h" |
35 | #include "dbus-common.h" | |
36 | #include "dbus-loop.h" | |
193197e8 LP |
37 | #include "strv.h" |
38 | #include "conf-parser.h" | |
20263082 | 39 | |
20263082 LP |
40 | Manager *manager_new(void) { |
41 | Manager *m; | |
42 | ||
43 | m = new0(Manager, 1); | |
44 | if (!m) | |
45 | return NULL; | |
46 | ||
47 | m->console_active_fd = -1; | |
48 | m->bus_fd = -1; | |
30ed21ce LP |
49 | m->udev_seat_fd = -1; |
50 | m->udev_vcsa_fd = -1; | |
20263082 LP |
51 | m->epoll_fd = -1; |
52 | m->n_autovts = 6; | |
53 | ||
54 | m->devices = hashmap_new(string_hash_func, string_compare_func); | |
55 | m->seats = hashmap_new(string_hash_func, string_compare_func); | |
56 | m->sessions = hashmap_new(string_hash_func, string_compare_func); | |
57 | m->users = hashmap_new(trivial_hash_func, trivial_compare_func); | |
f8e2fb7b LP |
58 | m->inhibitors = hashmap_new(string_hash_func, string_compare_func); |
59 | ||
1713813d | 60 | m->cgroups = hashmap_new(string_hash_func, string_compare_func); |
f8e2fb7b LP |
61 | m->session_fds = hashmap_new(trivial_hash_func, trivial_compare_func); |
62 | m->inhibitor_fds = hashmap_new(trivial_hash_func, trivial_compare_func); | |
20263082 | 63 | |
f8e2fb7b LP |
64 | if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || |
65 | !m->cgroups || !m->session_fds || !m->inhibitor_fds) { | |
25d93491 LP |
66 | manager_free(m); |
67 | return NULL; | |
68 | } | |
69 | ||
70 | m->reset_controllers = strv_new("cpu", NULL); | |
71 | m->kill_exclude_users = strv_new("root", NULL); | |
72 | if (!m->reset_controllers || !m->kill_exclude_users) { | |
20263082 LP |
73 | manager_free(m); |
74 | return NULL; | |
75 | } | |
76 | ||
77 | m->udev = udev_new(); | |
78 | if (!m->udev) { | |
79 | manager_free(m); | |
80 | return NULL; | |
81 | } | |
82 | ||
83 | if (cg_get_user_path(&m->cgroup_path) < 0) { | |
84 | manager_free(m); | |
85 | return NULL; | |
86 | } | |
87 | ||
88 | return m; | |
89 | } | |
90 | ||
91 | void manager_free(Manager *m) { | |
92 | Session *session; | |
93 | User *u; | |
94 | Device *d; | |
95 | Seat *s; | |
f8e2fb7b | 96 | Inhibitor *i; |
20263082 LP |
97 | |
98 | assert(m); | |
99 | ||
100 | while ((session = hashmap_first(m->sessions))) | |
101 | session_free(session); | |
102 | ||
103 | while ((u = hashmap_first(m->users))) | |
104 | user_free(u); | |
105 | ||
106 | while ((d = hashmap_first(m->devices))) | |
107 | device_free(d); | |
108 | ||
109 | while ((s = hashmap_first(m->seats))) | |
110 | seat_free(s); | |
111 | ||
f8e2fb7b LP |
112 | while ((i = hashmap_first(m->inhibitors))) |
113 | inhibitor_free(i); | |
114 | ||
20263082 LP |
115 | hashmap_free(m->devices); |
116 | hashmap_free(m->seats); | |
f8e2fb7b LP |
117 | hashmap_free(m->sessions); |
118 | hashmap_free(m->users); | |
119 | hashmap_free(m->inhibitors); | |
120 | ||
1713813d | 121 | hashmap_free(m->cgroups); |
f8e2fb7b LP |
122 | hashmap_free(m->session_fds); |
123 | hashmap_free(m->inhibitor_fds); | |
20263082 LP |
124 | |
125 | if (m->console_active_fd >= 0) | |
126 | close_nointr_nofail(m->console_active_fd); | |
127 | ||
30ed21ce LP |
128 | if (m->udev_seat_monitor) |
129 | udev_monitor_unref(m->udev_seat_monitor); | |
130 | ||
131 | if (m->udev_vcsa_monitor) | |
132 | udev_monitor_unref(m->udev_vcsa_monitor); | |
20263082 LP |
133 | |
134 | if (m->udev) | |
135 | udev_unref(m->udev); | |
136 | ||
137 | if (m->bus) { | |
138 | dbus_connection_flush(m->bus); | |
139 | dbus_connection_close(m->bus); | |
140 | dbus_connection_unref(m->bus); | |
141 | } | |
142 | ||
143 | if (m->bus_fd >= 0) | |
144 | close_nointr_nofail(m->bus_fd); | |
145 | ||
146 | if (m->epoll_fd >= 0) | |
147 | close_nointr_nofail(m->epoll_fd); | |
148 | ||
193197e8 LP |
149 | strv_free(m->controllers); |
150 | strv_free(m->reset_controllers); | |
151 | strv_free(m->kill_only_users); | |
152 | strv_free(m->kill_exclude_users); | |
153 | ||
20263082 LP |
154 | free(m->cgroup_path); |
155 | free(m); | |
156 | } | |
157 | ||
158 | int manager_add_device(Manager *m, const char *sysfs, Device **_device) { | |
159 | Device *d; | |
160 | ||
161 | assert(m); | |
162 | assert(sysfs); | |
163 | ||
164 | d = hashmap_get(m->devices, sysfs); | |
165 | if (d) { | |
166 | if (_device) | |
167 | *_device = d; | |
168 | ||
169 | return 0; | |
170 | } | |
171 | ||
172 | d = device_new(m, sysfs); | |
173 | if (!d) | |
174 | return -ENOMEM; | |
175 | ||
176 | if (_device) | |
177 | *_device = d; | |
178 | ||
179 | return 0; | |
180 | } | |
181 | ||
182 | int manager_add_seat(Manager *m, const char *id, Seat **_seat) { | |
183 | Seat *s; | |
184 | ||
185 | assert(m); | |
186 | assert(id); | |
187 | ||
188 | s = hashmap_get(m->seats, id); | |
189 | if (s) { | |
190 | if (_seat) | |
191 | *_seat = s; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | s = seat_new(m, id); | |
197 | if (!s) | |
198 | return -ENOMEM; | |
199 | ||
200 | if (_seat) | |
201 | *_seat = s; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | int manager_add_session(Manager *m, User *u, const char *id, Session **_session) { | |
207 | Session *s; | |
208 | ||
209 | assert(m); | |
210 | assert(id); | |
211 | ||
212 | s = hashmap_get(m->sessions, id); | |
213 | if (s) { | |
214 | if (_session) | |
215 | *_session = s; | |
216 | ||
217 | return 0; | |
218 | } | |
219 | ||
220 | s = session_new(m, u, id); | |
221 | if (!s) | |
222 | return -ENOMEM; | |
223 | ||
224 | if (_session) | |
225 | *_session = s; | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user) { | |
231 | User *u; | |
20263082 LP |
232 | |
233 | assert(m); | |
234 | assert(name); | |
235 | ||
236 | u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); | |
237 | if (u) { | |
238 | if (_user) | |
239 | *_user = u; | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | u = user_new(m, uid, gid, name); | |
245 | if (!u) | |
246 | return -ENOMEM; | |
247 | ||
14c3baca LP |
248 | if (_user) |
249 | *_user = u; | |
20263082 | 250 | |
14c3baca | 251 | return 0; |
20263082 LP |
252 | } |
253 | ||
254 | int manager_add_user_by_name(Manager *m, const char *name, User **_user) { | |
4b67834e LP |
255 | uid_t uid; |
256 | gid_t gid; | |
257 | int r; | |
20263082 LP |
258 | |
259 | assert(m); | |
260 | assert(name); | |
261 | ||
4b67834e LP |
262 | r = get_user_creds(&name, &uid, &gid, NULL); |
263 | if (r < 0) | |
264 | return r; | |
20263082 | 265 | |
4b67834e | 266 | return manager_add_user(m, uid, gid, name, _user); |
20263082 LP |
267 | } |
268 | ||
269 | int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user) { | |
270 | struct passwd *p; | |
271 | ||
272 | assert(m); | |
273 | ||
274 | errno = 0; | |
275 | p = getpwuid(uid); | |
276 | if (!p) | |
277 | return errno ? -errno : -ENOENT; | |
278 | ||
279 | return manager_add_user(m, uid, p->pw_gid, p->pw_name, _user); | |
280 | } | |
281 | ||
f8e2fb7b LP |
282 | int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor) { |
283 | Inhibitor *i; | |
284 | ||
285 | assert(m); | |
286 | assert(id); | |
287 | ||
288 | i = hashmap_get(m->inhibitors, id); | |
289 | if (i) { | |
290 | if (_inhibitor) | |
291 | *_inhibitor = i; | |
292 | ||
293 | return 0; | |
294 | } | |
295 | ||
296 | i = inhibitor_new(m, id); | |
297 | if (!i) | |
298 | return -ENOMEM; | |
299 | ||
300 | if (_inhibitor) | |
301 | *_inhibitor = i; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
30ed21ce | 306 | int manager_process_seat_device(Manager *m, struct udev_device *d) { |
20263082 LP |
307 | Device *device; |
308 | int r; | |
309 | ||
310 | assert(m); | |
311 | ||
14c3baca | 312 | if (streq_ptr(udev_device_get_action(d), "remove")) { |
20263082 | 313 | |
3745b500 | 314 | device = hashmap_get(m->devices, udev_device_get_syspath(d)); |
14c3baca LP |
315 | if (!device) |
316 | return 0; | |
20263082 | 317 | |
14c3baca LP |
318 | seat_add_to_gc_queue(device->seat); |
319 | device_free(device); | |
320 | ||
321 | } else { | |
322 | const char *sn; | |
323 | Seat *seat; | |
324 | ||
3f49d45a | 325 | sn = udev_device_get_property_value(d, "ID_SEAT"); |
53907215 | 326 | if (isempty(sn)) |
14c3baca LP |
327 | sn = "seat0"; |
328 | ||
3f49d45a LP |
329 | if (!seat_name_is_valid(sn)) { |
330 | log_warning("Device with invalid seat name %s found, ignoring.", sn); | |
331 | return 0; | |
332 | } | |
14c3baca | 333 | |
3745b500 | 334 | r = manager_add_device(m, udev_device_get_syspath(d), &device); |
14c3baca LP |
335 | if (r < 0) |
336 | return r; | |
337 | ||
338 | r = manager_add_seat(m, sn, &seat); | |
339 | if (r < 0) { | |
340 | if (!device->seat) | |
341 | device_free(device); | |
342 | ||
343 | return r; | |
344 | } | |
345 | ||
346 | device_attach(device, seat); | |
3f49d45a | 347 | seat_start(seat); |
14c3baca | 348 | } |
20263082 | 349 | |
20263082 LP |
350 | return 0; |
351 | } | |
352 | ||
353 | int manager_enumerate_devices(Manager *m) { | |
354 | struct udev_list_entry *item = NULL, *first = NULL; | |
355 | struct udev_enumerate *e; | |
14c3baca | 356 | int r; |
20263082 LP |
357 | |
358 | assert(m); | |
359 | ||
360 | /* Loads devices from udev and creates seats for them as | |
361 | * necessary */ | |
362 | ||
363 | e = udev_enumerate_new(m->udev); | |
14c3baca LP |
364 | if (!e) { |
365 | r = -ENOMEM; | |
5eda94dd | 366 | goto finish; |
14c3baca | 367 | } |
20263082 | 368 | |
14c3baca LP |
369 | r = udev_enumerate_add_match_subsystem(e, "graphics"); |
370 | if (r < 0) | |
20263082 LP |
371 | goto finish; |
372 | ||
14c3baca LP |
373 | r = udev_enumerate_add_match_tag(e, "seat"); |
374 | if (r < 0) | |
20263082 LP |
375 | goto finish; |
376 | ||
14c3baca LP |
377 | r = udev_enumerate_scan_devices(e); |
378 | if (r < 0) | |
20263082 LP |
379 | goto finish; |
380 | ||
381 | first = udev_enumerate_get_list_entry(e); | |
382 | udev_list_entry_foreach(item, first) { | |
383 | struct udev_device *d; | |
384 | int k; | |
385 | ||
386 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
14c3baca LP |
387 | if (!d) { |
388 | r = -ENOMEM; | |
20263082 | 389 | goto finish; |
14c3baca | 390 | } |
20263082 | 391 | |
30ed21ce | 392 | k = manager_process_seat_device(m, d); |
20263082 LP |
393 | udev_device_unref(d); |
394 | ||
395 | if (k < 0) | |
396 | r = k; | |
397 | } | |
398 | ||
399 | finish: | |
400 | if (e) | |
401 | udev_enumerate_unref(e); | |
402 | ||
403 | return r; | |
404 | } | |
405 | ||
406 | int manager_enumerate_seats(Manager *m) { | |
407 | DIR *d; | |
408 | struct dirent *de; | |
409 | int r = 0; | |
410 | ||
411 | assert(m); | |
412 | ||
413 | /* This loads data about seats stored on disk, but does not | |
414 | * actually create any seats. Removes data of seats that no | |
415 | * longer exist. */ | |
416 | ||
417 | d = opendir("/run/systemd/seats"); | |
418 | if (!d) { | |
419 | if (errno == ENOENT) | |
420 | return 0; | |
421 | ||
422 | log_error("Failed to open /run/systemd/seats: %m"); | |
423 | return -errno; | |
424 | } | |
425 | ||
426 | while ((de = readdir(d))) { | |
427 | Seat *s; | |
428 | int k; | |
429 | ||
430 | if (!dirent_is_file(de)) | |
431 | continue; | |
432 | ||
433 | s = hashmap_get(m->seats, de->d_name); | |
434 | if (!s) { | |
435 | unlinkat(dirfd(d), de->d_name, 0); | |
436 | continue; | |
437 | } | |
438 | ||
439 | k = seat_load(s); | |
440 | if (k < 0) | |
441 | r = k; | |
442 | } | |
443 | ||
444 | closedir(d); | |
445 | ||
446 | return r; | |
447 | } | |
448 | ||
449 | static int manager_enumerate_users_from_cgroup(Manager *m) { | |
f8e2fb7b | 450 | int r = 0, k; |
20263082 LP |
451 | char *name; |
452 | DIR *d; | |
453 | ||
454 | r = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_path, &d); | |
455 | if (r < 0) { | |
456 | if (r == -ENOENT) | |
457 | return 0; | |
458 | ||
459 | log_error("Failed to open %s: %s", m->cgroup_path, strerror(-r)); | |
460 | return r; | |
461 | } | |
462 | ||
3e085b6c | 463 | while ((k = cg_read_subgroup(d, &name)) > 0) { |
20263082 | 464 | User *user; |
14c3baca LP |
465 | |
466 | k = manager_add_user_by_name(m, name, &user); | |
467 | if (k < 0) { | |
468 | free(name); | |
469 | r = k; | |
470 | continue; | |
471 | } | |
472 | ||
473 | user_add_to_gc_queue(user); | |
474 | ||
475 | if (!user->cgroup_path) | |
476 | if (asprintf(&user->cgroup_path, "%s/%s", m->cgroup_path, name) < 0) { | |
477 | r = -ENOMEM; | |
478 | free(name); | |
479 | break; | |
480 | } | |
20263082 | 481 | |
20263082 | 482 | free(name); |
14c3baca LP |
483 | } |
484 | ||
3e085b6c LP |
485 | if (r >= 0 && k < 0) |
486 | r = k; | |
487 | ||
14c3baca LP |
488 | closedir(d); |
489 | ||
490 | return r; | |
491 | } | |
20263082 | 492 | |
14c3baca LP |
493 | static int manager_enumerate_linger_users(Manager *m) { |
494 | DIR *d; | |
495 | struct dirent *de; | |
496 | int r = 0; | |
497 | ||
498 | d = opendir("/var/lib/systemd/linger"); | |
499 | if (!d) { | |
500 | if (errno == ENOENT) | |
501 | return 0; | |
502 | ||
503 | log_error("Failed to open /var/lib/systemd/linger/: %m"); | |
504 | return -errno; | |
505 | } | |
506 | ||
507 | while ((de = readdir(d))) { | |
508 | int k; | |
509 | ||
510 | if (!dirent_is_file(de)) | |
20263082 LP |
511 | continue; |
512 | ||
14c3baca LP |
513 | k = manager_add_user_by_name(m, de->d_name, NULL); |
514 | if (k < 0) { | |
515 | log_notice("Couldn't add lingering user %s: %s", de->d_name, strerror(-k)); | |
516 | r = k; | |
20263082 LP |
517 | } |
518 | } | |
519 | ||
14c3baca | 520 | closedir(d); |
20263082 LP |
521 | |
522 | return r; | |
523 | } | |
524 | ||
525 | int manager_enumerate_users(Manager *m) { | |
526 | DIR *d; | |
527 | struct dirent *de; | |
14c3baca | 528 | int r, k; |
20263082 LP |
529 | |
530 | assert(m); | |
531 | ||
14c3baca | 532 | /* First, enumerate user cgroups */ |
20263082 LP |
533 | r = manager_enumerate_users_from_cgroup(m); |
534 | ||
14c3baca LP |
535 | /* Second, add lingering users on top */ |
536 | k = manager_enumerate_linger_users(m); | |
537 | if (k < 0) | |
538 | r = k; | |
539 | ||
540 | /* Third, read in user data stored on disk */ | |
20263082 LP |
541 | d = opendir("/run/systemd/users"); |
542 | if (!d) { | |
543 | if (errno == ENOENT) | |
544 | return 0; | |
545 | ||
546 | log_error("Failed to open /run/systemd/users: %m"); | |
547 | return -errno; | |
548 | } | |
549 | ||
550 | while ((de = readdir(d))) { | |
ddd88763 | 551 | uid_t uid; |
20263082 | 552 | User *u; |
20263082 LP |
553 | |
554 | if (!dirent_is_file(de)) | |
555 | continue; | |
556 | ||
ddd88763 | 557 | k = parse_uid(de->d_name, &uid); |
20263082 LP |
558 | if (k < 0) { |
559 | log_error("Failed to parse file name %s: %s", de->d_name, strerror(-k)); | |
560 | continue; | |
561 | } | |
562 | ||
ddd88763 | 563 | u = hashmap_get(m->users, ULONG_TO_PTR(uid)); |
20263082 LP |
564 | if (!u) { |
565 | unlinkat(dirfd(d), de->d_name, 0); | |
566 | continue; | |
567 | } | |
568 | ||
569 | k = user_load(u); | |
570 | if (k < 0) | |
571 | r = k; | |
572 | } | |
573 | ||
574 | closedir(d); | |
575 | ||
576 | return r; | |
577 | } | |
578 | ||
579 | static int manager_enumerate_sessions_from_cgroup(Manager *m) { | |
580 | User *u; | |
581 | Iterator i; | |
582 | int r = 0; | |
583 | ||
584 | HASHMAP_FOREACH(u, m->users, i) { | |
585 | DIR *d; | |
586 | char *name; | |
587 | int k; | |
588 | ||
14c3baca LP |
589 | if (!u->cgroup_path) |
590 | continue; | |
591 | ||
20263082 LP |
592 | k = cg_enumerate_subgroups(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, &d); |
593 | if (k < 0) { | |
594 | if (k == -ENOENT) | |
595 | continue; | |
596 | ||
597 | log_error("Failed to open %s: %s", u->cgroup_path, strerror(-k)); | |
598 | r = k; | |
599 | continue; | |
600 | } | |
601 | ||
602 | while ((k = cg_read_subgroup(d, &name)) > 0) { | |
603 | Session *session; | |
604 | ||
11896841 LP |
605 | if (streq(name, "shared")) |
606 | continue; | |
607 | ||
20263082 | 608 | k = manager_add_session(m, u, name, &session); |
14c3baca LP |
609 | if (k < 0) { |
610 | free(name); | |
20263082 | 611 | break; |
14c3baca | 612 | } |
20263082 | 613 | |
14c3baca | 614 | session_add_to_gc_queue(session); |
20263082 | 615 | |
14c3baca LP |
616 | if (!session->cgroup_path) |
617 | if (asprintf(&session->cgroup_path, "%s/%s", u->cgroup_path, name) < 0) { | |
618 | k = -ENOMEM; | |
619 | free(name); | |
620 | break; | |
621 | } | |
622 | ||
623 | free(name); | |
20263082 LP |
624 | } |
625 | ||
626 | closedir(d); | |
627 | ||
628 | if (k < 0) | |
629 | r = k; | |
630 | } | |
631 | ||
632 | return r; | |
633 | } | |
634 | ||
635 | int manager_enumerate_sessions(Manager *m) { | |
636 | DIR *d; | |
637 | struct dirent *de; | |
638 | int r = 0; | |
639 | ||
640 | assert(m); | |
641 | ||
14c3baca | 642 | /* First enumerate session cgroups */ |
20263082 LP |
643 | r = manager_enumerate_sessions_from_cgroup(m); |
644 | ||
14c3baca | 645 | /* Second, read in session data stored on disk */ |
20263082 LP |
646 | d = opendir("/run/systemd/sessions"); |
647 | if (!d) { | |
648 | if (errno == ENOENT) | |
649 | return 0; | |
650 | ||
651 | log_error("Failed to open /run/systemd/sessions: %m"); | |
652 | return -errno; | |
653 | } | |
654 | ||
655 | while ((de = readdir(d))) { | |
656 | struct Session *s; | |
657 | int k; | |
658 | ||
659 | if (!dirent_is_file(de)) | |
660 | continue; | |
661 | ||
662 | s = hashmap_get(m->sessions, de->d_name); | |
663 | if (!s) { | |
664 | unlinkat(dirfd(d), de->d_name, 0); | |
665 | continue; | |
666 | } | |
667 | ||
668 | k = session_load(s); | |
669 | if (k < 0) | |
670 | r = k; | |
671 | } | |
672 | ||
673 | closedir(d); | |
674 | ||
675 | return r; | |
676 | } | |
677 | ||
f8e2fb7b LP |
678 | int manager_enumerate_inhibitors(Manager *m) { |
679 | DIR *d; | |
680 | struct dirent *de; | |
681 | int r = 0; | |
682 | ||
683 | assert(m); | |
684 | ||
685 | d = opendir("/run/systemd/inhibit"); | |
686 | if (!d) { | |
687 | if (errno == ENOENT) | |
688 | return 0; | |
689 | ||
690 | log_error("Failed to open /run/systemd/inhibit: %m"); | |
691 | return -errno; | |
692 | } | |
693 | ||
694 | while ((de = readdir(d))) { | |
695 | int k; | |
696 | Inhibitor *i; | |
697 | ||
698 | if (!dirent_is_file(de)) | |
699 | continue; | |
700 | ||
701 | k = manager_add_inhibitor(m, de->d_name, &i); | |
702 | if (k < 0) { | |
703 | log_notice("Couldn't add inhibitor %s: %s", de->d_name, strerror(-k)); | |
704 | r = k; | |
705 | continue; | |
706 | } | |
707 | ||
708 | k = inhibitor_load(i); | |
709 | if (k < 0) | |
710 | r = k; | |
711 | } | |
712 | ||
713 | closedir(d); | |
714 | ||
715 | return r; | |
716 | } | |
717 | ||
30ed21ce | 718 | int manager_dispatch_seat_udev(Manager *m) { |
20263082 LP |
719 | struct udev_device *d; |
720 | int r; | |
721 | ||
722 | assert(m); | |
723 | ||
30ed21ce | 724 | d = udev_monitor_receive_device(m->udev_seat_monitor); |
20263082 LP |
725 | if (!d) |
726 | return -ENOMEM; | |
727 | ||
30ed21ce LP |
728 | r = manager_process_seat_device(m, d); |
729 | udev_device_unref(d); | |
730 | ||
731 | return r; | |
732 | } | |
733 | ||
30ed21ce LP |
734 | int manager_dispatch_vcsa_udev(Manager *m) { |
735 | struct udev_device *d; | |
736 | int r = 0; | |
737 | const char *name; | |
738 | ||
739 | assert(m); | |
740 | ||
741 | d = udev_monitor_receive_device(m->udev_vcsa_monitor); | |
742 | if (!d) | |
743 | return -ENOMEM; | |
744 | ||
745 | name = udev_device_get_sysname(d); | |
746 | ||
747 | /* Whenever a VCSA device is removed try to reallocate our | |
748 | * VTs, to make sure our auto VTs never go away. */ | |
749 | ||
750 | if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove")) | |
751 | r = seat_preallocate_vts(m->vtconsole); | |
752 | ||
20263082 LP |
753 | udev_device_unref(d); |
754 | ||
755 | return r; | |
756 | } | |
757 | ||
758 | int manager_dispatch_console(Manager *m) { | |
20263082 LP |
759 | assert(m); |
760 | ||
20263082 | 761 | if (m->vtconsole) |
14c3baca | 762 | seat_read_active_vt(m->vtconsole); |
20263082 LP |
763 | |
764 | return 0; | |
765 | } | |
766 | ||
5eda94dd LP |
767 | static int vt_is_busy(int vtnr) { |
768 | struct vt_stat vt_stat; | |
769 | int r = 0, fd; | |
770 | ||
771 | assert(vtnr >= 1); | |
772 | ||
d0a522eb LP |
773 | /* We explicitly open /dev/tty1 here instead of /dev/tty0. If |
774 | * we'd open the latter we'd open the foreground tty which | |
775 | * hence would be unconditionally busy. By opening /dev/tty1 | |
776 | * we avoid this. Since tty1 is special and needs to be an | |
777 | * explicitly loaded getty or DM this is safe. */ | |
778 | ||
779 | fd = open_terminal("/dev/tty1", O_RDWR|O_NOCTTY|O_CLOEXEC); | |
5eda94dd LP |
780 | if (fd < 0) |
781 | return -errno; | |
782 | ||
783 | if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0) | |
784 | r = -errno; | |
785 | else | |
786 | r = !!(vt_stat.v_state & (1 << vtnr)); | |
787 | ||
788 | close_nointr_nofail(fd); | |
789 | ||
790 | return r; | |
791 | } | |
792 | ||
20263082 | 793 | int manager_spawn_autovt(Manager *m, int vtnr) { |
5eda94dd | 794 | int r; |
d0a522eb LP |
795 | DBusMessage *message = NULL, *reply = NULL; |
796 | char *name = NULL; | |
797 | const char *mode = "fail"; | |
798 | DBusError error; | |
5eda94dd | 799 | |
20263082 | 800 | assert(m); |
30ed21ce | 801 | assert(vtnr >= 1); |
20263082 | 802 | |
d0a522eb LP |
803 | dbus_error_init(&error); |
804 | ||
30ed21ce | 805 | if ((unsigned) vtnr > m->n_autovts) |
975fd867 LP |
806 | return 0; |
807 | ||
5eda94dd | 808 | r = vt_is_busy(vtnr); |
975fd867 | 809 | if (r < 0) |
5eda94dd | 810 | return r; |
975fd867 LP |
811 | else if (r > 0) |
812 | return -EBUSY; | |
5eda94dd | 813 | |
d0a522eb LP |
814 | message = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartUnit"); |
815 | if (!message) { | |
816 | log_error("Could not allocate message."); | |
817 | r = -ENOMEM; | |
818 | goto finish; | |
819 | } | |
5eda94dd | 820 | |
cd9e5d0a | 821 | if (asprintf(&name, "autovt@tty%i.service", vtnr) < 0) { |
d0a522eb LP |
822 | log_error("Could not allocate service name."); |
823 | r = -ENOMEM; | |
824 | goto finish; | |
825 | } | |
826 | ||
827 | if (!dbus_message_append_args(message, | |
828 | DBUS_TYPE_STRING, &name, | |
829 | DBUS_TYPE_STRING, &mode, | |
830 | DBUS_TYPE_INVALID)) { | |
831 | log_error("Could not attach target and flag information to message."); | |
832 | r = -ENOMEM; | |
833 | goto finish; | |
834 | } | |
835 | ||
836 | reply = dbus_connection_send_with_reply_and_block(m->bus, message, -1, &error); | |
837 | if (!reply) { | |
838 | log_error("Failed to start unit: %s", bus_error_message(&error)); | |
839 | goto finish; | |
840 | } | |
841 | ||
842 | r = 0; | |
843 | ||
844 | finish: | |
845 | free(name); | |
846 | ||
847 | if (message) | |
848 | dbus_message_unref(message); | |
849 | ||
850 | if (reply) | |
851 | dbus_message_unref(reply); | |
852 | ||
853 | dbus_error_free(&error); | |
854 | ||
855 | return r; | |
20263082 LP |
856 | } |
857 | ||
9b221b63 | 858 | int manager_get_session_by_cgroup(Manager *m, const char *cgroup, Session **session) { |
acb14d31 | 859 | Session *s; |
1713813d LP |
860 | char *p; |
861 | ||
862 | assert(m); | |
863 | assert(cgroup); | |
9b221b63 | 864 | assert(session); |
1713813d | 865 | |
acb14d31 LP |
866 | s = hashmap_get(m->cgroups, cgroup); |
867 | if (s) { | |
868 | *session = s; | |
869 | return 1; | |
870 | } | |
871 | ||
1713813d LP |
872 | p = strdup(cgroup); |
873 | if (!p) { | |
874 | log_error("Out of memory."); | |
9b221b63 | 875 | return -ENOMEM; |
1713813d LP |
876 | } |
877 | ||
878 | for (;;) { | |
879 | char *e; | |
20263082 | 880 | |
acb14d31 LP |
881 | e = strrchr(p, '/'); |
882 | if (!e || e == p) { | |
9b221b63 LP |
883 | free(p); |
884 | *session = NULL; | |
885 | return 0; | |
886 | } | |
1713813d | 887 | |
acb14d31 LP |
888 | *e = 0; |
889 | ||
1713813d | 890 | s = hashmap_get(m->cgroups, p); |
9b221b63 LP |
891 | if (s) { |
892 | free(p); | |
893 | *session = s; | |
894 | return 1; | |
895 | } | |
1713813d | 896 | } |
9b221b63 LP |
897 | } |
898 | ||
899 | int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) { | |
900 | char *p; | |
901 | int r; | |
902 | ||
903 | assert(m); | |
904 | assert(pid >= 1); | |
905 | assert(session); | |
1713813d | 906 | |
9b221b63 LP |
907 | r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, pid, &p); |
908 | if (r < 0) | |
909 | return r; | |
910 | ||
911 | r = manager_get_session_by_cgroup(m, p, session); | |
1713813d | 912 | free(p); |
9b221b63 LP |
913 | |
914 | return r; | |
915 | } | |
916 | ||
917 | void manager_cgroup_notify_empty(Manager *m, const char *cgroup) { | |
918 | Session *s; | |
919 | int r; | |
920 | ||
921 | r = manager_get_session_by_cgroup(m, cgroup, &s); | |
922 | if (r <= 0) | |
923 | return; | |
924 | ||
925 | session_add_to_gc_queue(s); | |
20263082 LP |
926 | } |
927 | ||
31b79c2b LP |
928 | static void manager_pipe_notify_eof(Manager *m, int fd) { |
929 | Session *s; | |
f8e2fb7b | 930 | Inhibitor *i; |
31b79c2b LP |
931 | |
932 | assert_se(m); | |
933 | assert_se(fd >= 0); | |
934 | ||
f8e2fb7b LP |
935 | s = hashmap_get(m->session_fds, INT_TO_PTR(fd + 1)); |
936 | if (s) { | |
937 | assert(s->fifo_fd == fd); | |
938 | session_remove_fifo(s); | |
939 | session_stop(s); | |
940 | return; | |
941 | } | |
31b79c2b | 942 | |
f8e2fb7b LP |
943 | i = hashmap_get(m->inhibitor_fds, INT_TO_PTR(fd + 1)); |
944 | if (i) { | |
945 | assert(i->fifo_fd == fd); | |
946 | inhibitor_stop(i); | |
947 | inhibitor_free(i); | |
948 | return; | |
949 | } | |
950 | ||
951 | assert_not_reached("Got EOF on unknown pipe"); | |
31b79c2b LP |
952 | } |
953 | ||
20263082 | 954 | static int manager_connect_bus(Manager *m) { |
20263082 LP |
955 | DBusError error; |
956 | int r; | |
957 | struct epoll_event ev; | |
958 | ||
959 | assert(m); | |
960 | assert(!m->bus); | |
961 | assert(m->bus_fd < 0); | |
962 | ||
963 | dbus_error_init(&error); | |
964 | ||
965 | m->bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error); | |
966 | if (!m->bus) { | |
a2e52832 | 967 | log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error)); |
20263082 LP |
968 | r = -ECONNREFUSED; |
969 | goto fail; | |
970 | } | |
971 | ||
3f49d45a LP |
972 | if (!dbus_connection_register_object_path(m->bus, "/org/freedesktop/login1", &bus_manager_vtable, m) || |
973 | !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/seat", &bus_seat_vtable, m) || | |
974 | !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/session", &bus_session_vtable, m) || | |
975 | !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/user", &bus_user_vtable, m) || | |
1713813d | 976 | !dbus_connection_add_filter(m->bus, bus_message_filter, m, NULL)) { |
20263082 LP |
977 | log_error("Not enough memory"); |
978 | r = -ENOMEM; | |
979 | goto fail; | |
980 | } | |
981 | ||
982 | dbus_bus_add_match(m->bus, | |
983 | "type='signal'," | |
984 | "interface='org.freedesktop.systemd1.Agent'," | |
985 | "member='Released'," | |
986 | "path='/org/freedesktop/systemd1/agent'", | |
987 | &error); | |
988 | ||
989 | if (dbus_error_is_set(&error)) { | |
a2e52832 | 990 | log_error("Failed to register match: %s", bus_error_message(&error)); |
20263082 LP |
991 | r = -EIO; |
992 | goto fail; | |
993 | } | |
994 | ||
bafd4449 LP |
995 | r = dbus_bus_request_name(m->bus, "org.freedesktop.login1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error); |
996 | if (dbus_error_is_set(&error)) { | |
997 | log_error("Failed to register name on bus: %s", bus_error_message(&error)); | |
998 | r = -EIO; | |
999 | goto fail; | |
1000 | } | |
1001 | ||
1002 | if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { | |
1003 | log_error("Failed to acquire name."); | |
20263082 LP |
1004 | r = -EEXIST; |
1005 | goto fail; | |
1006 | } | |
1007 | ||
1008 | m->bus_fd = bus_loop_open(m->bus); | |
1009 | if (m->bus_fd < 0) { | |
1010 | r = m->bus_fd; | |
1011 | goto fail; | |
1012 | } | |
1013 | ||
1014 | zero(ev); | |
1015 | ev.events = EPOLLIN; | |
1016 | ev.data.u32 = FD_BUS; | |
1017 | ||
1018 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->bus_fd, &ev) < 0) | |
1019 | goto fail; | |
1020 | ||
1021 | return 0; | |
1022 | ||
1023 | fail: | |
1024 | dbus_error_free(&error); | |
1025 | ||
1026 | return r; | |
1027 | } | |
1028 | ||
1029 | static int manager_connect_console(Manager *m) { | |
1030 | struct epoll_event ev; | |
1031 | ||
1032 | assert(m); | |
1033 | assert(m->console_active_fd < 0); | |
1034 | ||
74afee9c LP |
1035 | /* On certain architectures (S390 and Xen, and containers), |
1036 | /dev/tty0 does not exist, so don't fail if we can't open | |
1037 | it. */ | |
1038 | if (access("/dev/tty0", F_OK) < 0) { | |
1039 | m->console_active_fd = -1; | |
1040 | return 0; | |
1041 | } | |
1042 | ||
20263082 LP |
1043 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); |
1044 | if (m->console_active_fd < 0) { | |
1045 | log_error("Failed to open /sys/class/tty/tty0/active: %m"); | |
1046 | return -errno; | |
1047 | } | |
1048 | ||
1049 | zero(ev); | |
14c3baca | 1050 | ev.events = 0; |
20263082 LP |
1051 | ev.data.u32 = FD_CONSOLE; |
1052 | ||
1053 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->console_active_fd, &ev) < 0) | |
1054 | return -errno; | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | static int manager_connect_udev(Manager *m) { | |
1060 | struct epoll_event ev; | |
14c3baca | 1061 | int r; |
20263082 LP |
1062 | |
1063 | assert(m); | |
30ed21ce LP |
1064 | assert(!m->udev_seat_monitor); |
1065 | assert(!m->udev_vcsa_monitor); | |
20263082 | 1066 | |
30ed21ce LP |
1067 | m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
1068 | if (!m->udev_seat_monitor) | |
20263082 LP |
1069 | return -ENOMEM; |
1070 | ||
30ed21ce | 1071 | r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "seat"); |
14c3baca LP |
1072 | if (r < 0) |
1073 | return r; | |
20263082 | 1074 | |
30ed21ce | 1075 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_seat_monitor, "graphics", NULL); |
14c3baca LP |
1076 | if (r < 0) |
1077 | return r; | |
20263082 | 1078 | |
30ed21ce | 1079 | r = udev_monitor_enable_receiving(m->udev_seat_monitor); |
14c3baca LP |
1080 | if (r < 0) |
1081 | return r; | |
20263082 | 1082 | |
30ed21ce | 1083 | m->udev_seat_fd = udev_monitor_get_fd(m->udev_seat_monitor); |
20263082 LP |
1084 | |
1085 | zero(ev); | |
1086 | ev.events = EPOLLIN; | |
30ed21ce | 1087 | ev.data.u32 = FD_SEAT_UDEV; |
20263082 | 1088 | |
976c088a LP |
1089 | /* Don't bother watching VCSA devices, if nobody cares */ |
1090 | if (m->n_autovts <= 0 || m->console_active_fd < 0) | |
30ed21ce LP |
1091 | return 0; |
1092 | ||
1093 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_seat_fd, &ev) < 0) | |
1094 | return -errno; | |
1095 | ||
1096 | m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); | |
1097 | if (!m->udev_vcsa_monitor) | |
1098 | return -ENOMEM; | |
1099 | ||
1100 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL); | |
1101 | if (r < 0) | |
1102 | return r; | |
1103 | ||
1104 | r = udev_monitor_enable_receiving(m->udev_vcsa_monitor); | |
1105 | if (r < 0) | |
1106 | return r; | |
1107 | ||
1108 | m->udev_vcsa_fd = udev_monitor_get_fd(m->udev_vcsa_monitor); | |
1109 | ||
1110 | zero(ev); | |
1111 | ev.events = EPOLLIN; | |
1112 | ev.data.u32 = FD_VCSA_UDEV; | |
1113 | ||
1114 | if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_vcsa_fd, &ev) < 0) | |
20263082 LP |
1115 | return -errno; |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
4a4b033f | 1120 | void manager_gc(Manager *m, bool drop_not_started) { |
14c3baca LP |
1121 | Seat *seat; |
1122 | Session *session; | |
1123 | User *user; | |
1124 | ||
1125 | assert(m); | |
1126 | ||
1127 | while ((seat = m->seat_gc_queue)) { | |
1128 | LIST_REMOVE(Seat, gc_queue, m->seat_gc_queue, seat); | |
1129 | seat->in_gc_queue = false; | |
1130 | ||
4a4b033f | 1131 | if (seat_check_gc(seat, drop_not_started) == 0) { |
14c3baca LP |
1132 | seat_stop(seat); |
1133 | seat_free(seat); | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | while ((session = m->session_gc_queue)) { | |
1138 | LIST_REMOVE(Session, gc_queue, m->session_gc_queue, session); | |
1139 | session->in_gc_queue = false; | |
1140 | ||
4a4b033f | 1141 | if (session_check_gc(session, drop_not_started) == 0) { |
14c3baca LP |
1142 | session_stop(session); |
1143 | session_free(session); | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | while ((user = m->user_gc_queue)) { | |
1148 | LIST_REMOVE(User, gc_queue, m->user_gc_queue, user); | |
1149 | user->in_gc_queue = false; | |
1150 | ||
4a4b033f | 1151 | if (user_check_gc(user, drop_not_started) == 0) { |
14c3baca LP |
1152 | user_stop(user); |
1153 | user_free(user); | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | ||
a185c5aa LP |
1158 | int manager_get_idle_hint(Manager *m, dual_timestamp *t) { |
1159 | Session *s; | |
c7b5eb98 | 1160 | bool idle_hint; |
a185c5aa LP |
1161 | dual_timestamp ts = { 0, 0 }; |
1162 | Iterator i; | |
1163 | ||
1164 | assert(m); | |
1165 | ||
c7b5eb98 LP |
1166 | idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, t); |
1167 | ||
a185c5aa LP |
1168 | HASHMAP_FOREACH(s, m->sessions, i) { |
1169 | dual_timestamp k; | |
1170 | int ih; | |
1171 | ||
1172 | ih = session_get_idle_hint(s, &k); | |
1173 | if (ih < 0) | |
1174 | return ih; | |
1175 | ||
1176 | if (!ih) { | |
1177 | if (!idle_hint) { | |
1178 | if (k.monotonic < ts.monotonic) | |
1179 | ts = k; | |
1180 | } else { | |
1181 | idle_hint = false; | |
1182 | ts = k; | |
1183 | } | |
1184 | } else if (idle_hint) { | |
1185 | ||
1186 | if (k.monotonic > ts.monotonic) | |
1187 | ts = k; | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | if (t) | |
1192 | *t = ts; | |
1193 | ||
1194 | return idle_hint; | |
1195 | } | |
1196 | ||
20263082 LP |
1197 | int manager_startup(Manager *m) { |
1198 | int r; | |
14c3baca LP |
1199 | Seat *seat; |
1200 | Session *session; | |
1201 | User *user; | |
f8e2fb7b | 1202 | Inhibitor *inhibitor; |
14c3baca | 1203 | Iterator i; |
20263082 LP |
1204 | |
1205 | assert(m); | |
1206 | assert(m->epoll_fd <= 0); | |
1207 | ||
1208 | m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); | |
1209 | if (m->epoll_fd < 0) | |
1210 | return -errno; | |
1211 | ||
976c088a LP |
1212 | /* Connect to console */ |
1213 | r = manager_connect_console(m); | |
20263082 LP |
1214 | if (r < 0) |
1215 | return r; | |
1216 | ||
976c088a LP |
1217 | /* Connect to udev */ |
1218 | r = manager_connect_udev(m); | |
20263082 LP |
1219 | if (r < 0) |
1220 | return r; | |
1221 | ||
1222 | /* Connect to the bus */ | |
1223 | r = manager_connect_bus(m); | |
1224 | if (r < 0) | |
1225 | return r; | |
1226 | ||
14c3baca LP |
1227 | /* Instantiate magic seat 0 */ |
1228 | r = manager_add_seat(m, "seat0", &m->vtconsole); | |
1229 | if (r < 0) | |
1230 | return r; | |
1231 | ||
20263082 LP |
1232 | /* Deserialize state */ |
1233 | manager_enumerate_devices(m); | |
1234 | manager_enumerate_seats(m); | |
1235 | manager_enumerate_users(m); | |
1236 | manager_enumerate_sessions(m); | |
f8e2fb7b | 1237 | manager_enumerate_inhibitors(m); |
20263082 | 1238 | |
4a4b033f LP |
1239 | /* Remove stale objects before we start them */ |
1240 | manager_gc(m, false); | |
1241 | ||
14c3baca LP |
1242 | /* And start everything */ |
1243 | HASHMAP_FOREACH(seat, m->seats, i) | |
1244 | seat_start(seat); | |
1245 | ||
1246 | HASHMAP_FOREACH(user, m->users, i) | |
1247 | user_start(user); | |
1248 | ||
1249 | HASHMAP_FOREACH(session, m->sessions, i) | |
1250 | session_start(session); | |
20263082 | 1251 | |
f8e2fb7b LP |
1252 | HASHMAP_FOREACH(inhibitor, m->inhibitors, i) |
1253 | inhibitor_start(inhibitor); | |
1254 | ||
20263082 LP |
1255 | return 0; |
1256 | } | |
1257 | ||
1258 | int manager_run(Manager *m) { | |
1259 | assert(m); | |
1260 | ||
1261 | for (;;) { | |
1262 | struct epoll_event event; | |
1263 | int n; | |
1264 | ||
4a4b033f | 1265 | manager_gc(m, true); |
14c3baca | 1266 | |
20263082 LP |
1267 | if (dbus_connection_dispatch(m->bus) != DBUS_DISPATCH_COMPLETE) |
1268 | continue; | |
1269 | ||
4a4b033f | 1270 | manager_gc(m, true); |
1713813d | 1271 | |
20263082 LP |
1272 | n = epoll_wait(m->epoll_fd, &event, 1, -1); |
1273 | if (n < 0) { | |
3f49d45a LP |
1274 | if (errno == EINTR || errno == EAGAIN) |
1275 | continue; | |
1276 | ||
20263082 LP |
1277 | log_error("epoll() failed: %m"); |
1278 | return -errno; | |
1279 | } | |
1280 | ||
1281 | switch (event.data.u32) { | |
1282 | ||
30ed21ce LP |
1283 | case FD_SEAT_UDEV: |
1284 | manager_dispatch_seat_udev(m); | |
1285 | break; | |
1286 | ||
1287 | case FD_VCSA_UDEV: | |
1288 | manager_dispatch_vcsa_udev(m); | |
20263082 LP |
1289 | break; |
1290 | ||
1291 | case FD_CONSOLE: | |
1292 | manager_dispatch_console(m); | |
1293 | break; | |
1294 | ||
1295 | case FD_BUS: | |
1296 | bus_loop_dispatch(m->bus_fd); | |
1297 | break; | |
31b79c2b LP |
1298 | |
1299 | default: | |
932e3ee7 LP |
1300 | if (event.data.u32 >= FD_FIFO_BASE) |
1301 | manager_pipe_notify_eof(m, event.data.u32 - FD_FIFO_BASE); | |
20263082 LP |
1302 | } |
1303 | } | |
1304 | ||
1305 | return 0; | |
1306 | } | |
1307 | ||
193197e8 | 1308 | static int manager_parse_config_file(Manager *m) { |
193197e8 LP |
1309 | FILE *f; |
1310 | const char *fn; | |
1311 | int r; | |
1312 | ||
1313 | assert(m); | |
1314 | ||
18b754d3 | 1315 | fn = "/etc/systemd/logind.conf"; |
193197e8 LP |
1316 | f = fopen(fn, "re"); |
1317 | if (!f) { | |
1318 | if (errno == ENOENT) | |
1319 | return 0; | |
1320 | ||
1321 | log_warning("Failed to open configuration file %s: %m", fn); | |
1322 | return -errno; | |
1323 | } | |
1324 | ||
f975e971 | 1325 | r = config_parse(fn, f, "Login\0", config_item_perf_lookup, (void*) logind_gperf_lookup, false, m); |
193197e8 LP |
1326 | if (r < 0) |
1327 | log_warning("Failed to parse configuration file: %s", strerror(-r)); | |
1328 | ||
1329 | fclose(f); | |
1330 | ||
1331 | return r; | |
1332 | } | |
1333 | ||
20263082 LP |
1334 | int main(int argc, char *argv[]) { |
1335 | Manager *m = NULL; | |
5eda94dd | 1336 | int r; |
20263082 LP |
1337 | |
1338 | log_set_target(LOG_TARGET_AUTO); | |
3eff4208 | 1339 | log_set_facility(LOG_AUTH); |
20263082 LP |
1340 | log_parse_environment(); |
1341 | log_open(); | |
1342 | ||
4c12626c LP |
1343 | umask(0022); |
1344 | ||
20263082 LP |
1345 | if (argc != 1) { |
1346 | log_error("This program takes no arguments."); | |
1347 | r = -EINVAL; | |
1348 | goto finish; | |
1349 | } | |
1350 | ||
20263082 LP |
1351 | m = manager_new(); |
1352 | if (!m) { | |
1353 | log_error("Out of memory"); | |
1354 | r = -ENOMEM; | |
1355 | goto finish; | |
1356 | } | |
1357 | ||
193197e8 LP |
1358 | manager_parse_config_file(m); |
1359 | ||
20263082 LP |
1360 | r = manager_startup(m); |
1361 | if (r < 0) { | |
1362 | log_error("Failed to fully start up daemon: %s", strerror(-r)); | |
1363 | goto finish; | |
1364 | } | |
1365 | ||
e6960940 LP |
1366 | log_debug("systemd-logind running as pid %lu", (unsigned long) getpid()); |
1367 | ||
1368 | sd_notify(false, | |
1369 | "READY=1\n" | |
1370 | "STATUS=Processing requests..."); | |
1371 | ||
20263082 LP |
1372 | r = manager_run(m); |
1373 | ||
e6960940 LP |
1374 | log_debug("systemd-logind stopped as pid %lu", (unsigned long) getpid()); |
1375 | ||
20263082 | 1376 | finish: |
e6960940 LP |
1377 | sd_notify(false, |
1378 | "STATUS=Shutting down..."); | |
1379 | ||
20263082 LP |
1380 | if (m) |
1381 | manager_free(m); | |
1382 | ||
1383 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1384 | } |