]>
Commit | Line | Data |
---|---|---|
663996b3 MS |
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 | |
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 | |
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 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
663996b3 MS |
23 | #include <libudev.h> |
24 | #include <fcntl.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
663996b3 MS |
27 | #include <linux/vt.h> |
28 | #include <sys/timerfd.h> | |
29 | ||
60f067b4 | 30 | #include "sd-daemon.h" |
663996b3 MS |
31 | #include "strv.h" |
32 | #include "conf-parser.h" | |
33 | #include "mkdir.h" | |
60f067b4 JS |
34 | #include "bus-util.h" |
35 | #include "bus-error.h" | |
36 | #include "logind.h" | |
37 | #include "udev-util.h" | |
663996b3 MS |
38 | |
39 | Manager *manager_new(void) { | |
40 | Manager *m; | |
60f067b4 | 41 | int r; |
663996b3 MS |
42 | |
43 | m = new0(Manager, 1); | |
44 | if (!m) | |
45 | return NULL; | |
46 | ||
47 | m->console_active_fd = -1; | |
663996b3 MS |
48 | m->reserve_vt_fd = -1; |
49 | ||
50 | m->n_autovts = 6; | |
51 | m->reserve_vt = 6; | |
60f067b4 | 52 | m->remove_ipc = true; |
663996b3 MS |
53 | m->inhibit_delay_max = 5 * USEC_PER_SEC; |
54 | m->handle_power_key = HANDLE_POWEROFF; | |
55 | m->handle_suspend_key = HANDLE_SUSPEND; | |
56 | m->handle_hibernate_key = HANDLE_HIBERNATE; | |
57 | m->handle_lid_switch = HANDLE_SUSPEND; | |
5eef597e | 58 | m->handle_lid_switch_docked = HANDLE_IGNORE; |
663996b3 MS |
59 | m->lid_switch_ignore_inhibited = true; |
60 | ||
663996b3 MS |
61 | m->idle_action_usec = 30 * USEC_PER_MINUTE; |
62 | m->idle_action = HANDLE_IGNORE; | |
63 | m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); | |
64 | ||
60f067b4 JS |
65 | m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */ |
66 | ||
5eef597e MP |
67 | m->devices = hashmap_new(&string_hash_ops); |
68 | m->seats = hashmap_new(&string_hash_ops); | |
69 | m->sessions = hashmap_new(&string_hash_ops); | |
70 | m->users = hashmap_new(NULL); | |
71 | m->inhibitors = hashmap_new(&string_hash_ops); | |
72 | m->buttons = hashmap_new(&string_hash_ops); | |
663996b3 | 73 | |
5eef597e MP |
74 | m->user_units = hashmap_new(&string_hash_ops); |
75 | m->session_units = hashmap_new(&string_hash_ops); | |
663996b3 | 76 | |
5eef597e | 77 | m->busnames = set_new(&string_hash_ops); |
663996b3 | 78 | |
14228c0d | 79 | if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->busnames || |
60f067b4 JS |
80 | !m->user_units || !m->session_units) |
81 | goto fail; | |
663996b3 | 82 | |
663996b3 | 83 | m->kill_exclude_users = strv_new("root", NULL); |
60f067b4 JS |
84 | if (!m->kill_exclude_users) |
85 | goto fail; | |
663996b3 MS |
86 | |
87 | m->udev = udev_new(); | |
60f067b4 JS |
88 | if (!m->udev) |
89 | goto fail; | |
90 | ||
91 | r = sd_event_default(&m->event); | |
92 | if (r < 0) | |
93 | goto fail; | |
94 | ||
95 | sd_event_set_watchdog(m->event, true); | |
663996b3 | 96 | |
663996b3 | 97 | return m; |
60f067b4 JS |
98 | |
99 | fail: | |
100 | manager_free(m); | |
101 | return NULL; | |
663996b3 MS |
102 | } |
103 | ||
104 | void manager_free(Manager *m) { | |
105 | Session *session; | |
106 | User *u; | |
107 | Device *d; | |
108 | Seat *s; | |
109 | Inhibitor *i; | |
110 | Button *b; | |
111 | ||
112 | assert(m); | |
113 | ||
114 | while ((session = hashmap_first(m->sessions))) | |
115 | session_free(session); | |
116 | ||
117 | while ((u = hashmap_first(m->users))) | |
118 | user_free(u); | |
119 | ||
120 | while ((d = hashmap_first(m->devices))) | |
121 | device_free(d); | |
122 | ||
123 | while ((s = hashmap_first(m->seats))) | |
124 | seat_free(s); | |
125 | ||
126 | while ((i = hashmap_first(m->inhibitors))) | |
127 | inhibitor_free(i); | |
128 | ||
129 | while ((b = hashmap_first(m->buttons))) | |
130 | button_free(b); | |
131 | ||
132 | hashmap_free(m->devices); | |
133 | hashmap_free(m->seats); | |
134 | hashmap_free(m->sessions); | |
135 | hashmap_free(m->users); | |
136 | hashmap_free(m->inhibitors); | |
137 | hashmap_free(m->buttons); | |
138 | ||
14228c0d MB |
139 | hashmap_free(m->user_units); |
140 | hashmap_free(m->session_units); | |
663996b3 | 141 | |
60f067b4 JS |
142 | set_free_free(m->busnames); |
143 | ||
144 | sd_event_source_unref(m->idle_action_event_source); | |
145 | ||
146 | sd_event_source_unref(m->console_active_event_source); | |
147 | sd_event_source_unref(m->udev_seat_event_source); | |
148 | sd_event_source_unref(m->udev_device_event_source); | |
149 | sd_event_source_unref(m->udev_vcsa_event_source); | |
150 | sd_event_source_unref(m->udev_button_event_source); | |
151 | sd_event_source_unref(m->lid_switch_ignore_event_source); | |
663996b3 | 152 | |
60f067b4 | 153 | safe_close(m->console_active_fd); |
663996b3 MS |
154 | |
155 | if (m->udev_seat_monitor) | |
156 | udev_monitor_unref(m->udev_seat_monitor); | |
14228c0d MB |
157 | if (m->udev_device_monitor) |
158 | udev_monitor_unref(m->udev_device_monitor); | |
663996b3 MS |
159 | if (m->udev_vcsa_monitor) |
160 | udev_monitor_unref(m->udev_vcsa_monitor); | |
161 | if (m->udev_button_monitor) | |
162 | udev_monitor_unref(m->udev_button_monitor); | |
163 | ||
164 | if (m->udev) | |
165 | udev_unref(m->udev); | |
166 | ||
5eef597e | 167 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
663996b3 | 168 | |
60f067b4 JS |
169 | sd_bus_unref(m->bus); |
170 | sd_event_unref(m->event); | |
663996b3 | 171 | |
60f067b4 | 172 | safe_close(m->reserve_vt_fd); |
663996b3 | 173 | |
663996b3 MS |
174 | strv_free(m->kill_only_users); |
175 | strv_free(m->kill_exclude_users); | |
176 | ||
177 | free(m->action_job); | |
663996b3 MS |
178 | free(m); |
179 | } | |
180 | ||
60f067b4 | 181 | static int manager_enumerate_devices(Manager *m) { |
663996b3 | 182 | struct udev_list_entry *item = NULL, *first = NULL; |
60f067b4 | 183 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
663996b3 MS |
184 | int r; |
185 | ||
186 | assert(m); | |
187 | ||
188 | /* Loads devices from udev and creates seats for them as | |
189 | * necessary */ | |
190 | ||
191 | e = udev_enumerate_new(m->udev); | |
60f067b4 JS |
192 | if (!e) |
193 | return -ENOMEM; | |
663996b3 MS |
194 | |
195 | r = udev_enumerate_add_match_tag(e, "master-of-seat"); | |
196 | if (r < 0) | |
60f067b4 JS |
197 | return r; |
198 | ||
199 | r = udev_enumerate_add_match_is_initialized(e); | |
200 | if (r < 0) | |
201 | return r; | |
663996b3 MS |
202 | |
203 | r = udev_enumerate_scan_devices(e); | |
204 | if (r < 0) | |
60f067b4 | 205 | return r; |
663996b3 MS |
206 | |
207 | first = udev_enumerate_get_list_entry(e); | |
208 | udev_list_entry_foreach(item, first) { | |
60f067b4 | 209 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
663996b3 MS |
210 | int k; |
211 | ||
212 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
60f067b4 JS |
213 | if (!d) |
214 | return -ENOMEM; | |
663996b3 MS |
215 | |
216 | k = manager_process_seat_device(m, d); | |
663996b3 MS |
217 | if (k < 0) |
218 | r = k; | |
219 | } | |
220 | ||
663996b3 MS |
221 | return r; |
222 | } | |
223 | ||
60f067b4 JS |
224 | static int manager_enumerate_buttons(Manager *m) { |
225 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; | |
663996b3 | 226 | struct udev_list_entry *item = NULL, *first = NULL; |
663996b3 MS |
227 | int r; |
228 | ||
229 | assert(m); | |
230 | ||
231 | /* Loads buttons from udev */ | |
232 | ||
233 | if (m->handle_power_key == HANDLE_IGNORE && | |
234 | m->handle_suspend_key == HANDLE_IGNORE && | |
235 | m->handle_hibernate_key == HANDLE_IGNORE && | |
5eef597e MP |
236 | m->handle_lid_switch == HANDLE_IGNORE && |
237 | m->handle_lid_switch_docked == HANDLE_IGNORE) | |
663996b3 MS |
238 | return 0; |
239 | ||
240 | e = udev_enumerate_new(m->udev); | |
60f067b4 JS |
241 | if (!e) |
242 | return -ENOMEM; | |
663996b3 MS |
243 | |
244 | r = udev_enumerate_add_match_subsystem(e, "input"); | |
245 | if (r < 0) | |
60f067b4 | 246 | return r; |
663996b3 MS |
247 | |
248 | r = udev_enumerate_add_match_tag(e, "power-switch"); | |
249 | if (r < 0) | |
60f067b4 JS |
250 | return r; |
251 | ||
252 | r = udev_enumerate_add_match_is_initialized(e); | |
253 | if (r < 0) | |
254 | return r; | |
663996b3 MS |
255 | |
256 | r = udev_enumerate_scan_devices(e); | |
257 | if (r < 0) | |
60f067b4 | 258 | return r; |
663996b3 MS |
259 | |
260 | first = udev_enumerate_get_list_entry(e); | |
261 | udev_list_entry_foreach(item, first) { | |
60f067b4 | 262 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
663996b3 MS |
263 | int k; |
264 | ||
265 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
60f067b4 JS |
266 | if (!d) |
267 | return -ENOMEM; | |
663996b3 MS |
268 | |
269 | k = manager_process_button_device(m, d); | |
663996b3 MS |
270 | if (k < 0) |
271 | r = k; | |
272 | } | |
273 | ||
663996b3 MS |
274 | return r; |
275 | } | |
276 | ||
60f067b4 | 277 | static int manager_enumerate_seats(Manager *m) { |
14228c0d | 278 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
279 | struct dirent *de; |
280 | int r = 0; | |
281 | ||
282 | assert(m); | |
283 | ||
284 | /* This loads data about seats stored on disk, but does not | |
285 | * actually create any seats. Removes data of seats that no | |
286 | * longer exist. */ | |
287 | ||
288 | d = opendir("/run/systemd/seats"); | |
289 | if (!d) { | |
290 | if (errno == ENOENT) | |
291 | return 0; | |
292 | ||
f47781d8 | 293 | log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); |
663996b3 MS |
294 | return -errno; |
295 | } | |
296 | ||
14228c0d | 297 | FOREACH_DIRENT(de, d, return -errno) { |
663996b3 MS |
298 | Seat *s; |
299 | int k; | |
300 | ||
301 | if (!dirent_is_file(de)) | |
302 | continue; | |
303 | ||
304 | s = hashmap_get(m->seats, de->d_name); | |
305 | if (!s) { | |
306 | unlinkat(dirfd(d), de->d_name, 0); | |
307 | continue; | |
308 | } | |
309 | ||
310 | k = seat_load(s); | |
311 | if (k < 0) | |
312 | r = k; | |
313 | } | |
314 | ||
663996b3 MS |
315 | return r; |
316 | } | |
317 | ||
318 | static int manager_enumerate_linger_users(Manager *m) { | |
14228c0d | 319 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
320 | struct dirent *de; |
321 | int r = 0; | |
322 | ||
14228c0d MB |
323 | assert(m); |
324 | ||
663996b3 MS |
325 | d = opendir("/var/lib/systemd/linger"); |
326 | if (!d) { | |
327 | if (errno == ENOENT) | |
328 | return 0; | |
329 | ||
f47781d8 | 330 | log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); |
663996b3 MS |
331 | return -errno; |
332 | } | |
333 | ||
14228c0d | 334 | FOREACH_DIRENT(de, d, return -errno) { |
663996b3 MS |
335 | int k; |
336 | ||
337 | if (!dirent_is_file(de)) | |
338 | continue; | |
339 | ||
340 | k = manager_add_user_by_name(m, de->d_name, NULL); | |
341 | if (k < 0) { | |
f47781d8 | 342 | log_notice_errno(k, "Couldn't add lingering user %s: %m", de->d_name); |
663996b3 MS |
343 | r = k; |
344 | } | |
345 | } | |
346 | ||
663996b3 MS |
347 | return r; |
348 | } | |
349 | ||
60f067b4 | 350 | static int manager_enumerate_users(Manager *m) { |
14228c0d | 351 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
352 | struct dirent *de; |
353 | int r, k; | |
354 | ||
355 | assert(m); | |
356 | ||
14228c0d MB |
357 | /* Add lingering users */ |
358 | r = manager_enumerate_linger_users(m); | |
663996b3 | 359 | |
14228c0d | 360 | /* Read in user data stored on disk */ |
663996b3 MS |
361 | d = opendir("/run/systemd/users"); |
362 | if (!d) { | |
363 | if (errno == ENOENT) | |
364 | return 0; | |
365 | ||
f47781d8 | 366 | log_error_errno(errno, "Failed to open /run/systemd/users: %m"); |
663996b3 MS |
367 | return -errno; |
368 | } | |
369 | ||
14228c0d | 370 | FOREACH_DIRENT(de, d, return -errno) { |
663996b3 MS |
371 | User *u; |
372 | ||
373 | if (!dirent_is_file(de)) | |
374 | continue; | |
375 | ||
14228c0d | 376 | k = manager_add_user_by_name(m, de->d_name, &u); |
663996b3 | 377 | if (k < 0) { |
f47781d8 | 378 | log_error_errno(k, "Failed to add user by file name %s: %m", de->d_name); |
663996b3 | 379 | |
663996b3 MS |
380 | r = k; |
381 | continue; | |
382 | } | |
383 | ||
14228c0d | 384 | user_add_to_gc_queue(u); |
663996b3 | 385 | |
14228c0d | 386 | k = user_load(u); |
663996b3 MS |
387 | if (k < 0) |
388 | r = k; | |
389 | } | |
390 | ||
391 | return r; | |
392 | } | |
393 | ||
60f067b4 | 394 | static int manager_enumerate_sessions(Manager *m) { |
14228c0d | 395 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
396 | struct dirent *de; |
397 | int r = 0; | |
398 | ||
399 | assert(m); | |
400 | ||
14228c0d | 401 | /* Read in session data stored on disk */ |
663996b3 MS |
402 | d = opendir("/run/systemd/sessions"); |
403 | if (!d) { | |
404 | if (errno == ENOENT) | |
405 | return 0; | |
406 | ||
f47781d8 | 407 | log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); |
663996b3 MS |
408 | return -errno; |
409 | } | |
410 | ||
14228c0d | 411 | FOREACH_DIRENT(de, d, return -errno) { |
663996b3 MS |
412 | struct Session *s; |
413 | int k; | |
414 | ||
415 | if (!dirent_is_file(de)) | |
416 | continue; | |
417 | ||
14228c0d MB |
418 | if (!session_id_valid(de->d_name)) { |
419 | log_warning("Invalid session file name '%s', ignoring.", de->d_name); | |
420 | r = -EINVAL; | |
421 | continue; | |
422 | } | |
423 | ||
424 | k = manager_add_session(m, de->d_name, &s); | |
425 | if (k < 0) { | |
f47781d8 | 426 | log_error_errno(k, "Failed to add session by file name %s: %m", de->d_name); |
14228c0d MB |
427 | |
428 | r = k; | |
663996b3 MS |
429 | continue; |
430 | } | |
431 | ||
14228c0d MB |
432 | session_add_to_gc_queue(s); |
433 | ||
663996b3 MS |
434 | k = session_load(s); |
435 | if (k < 0) | |
436 | r = k; | |
437 | } | |
438 | ||
663996b3 MS |
439 | return r; |
440 | } | |
441 | ||
60f067b4 | 442 | static int manager_enumerate_inhibitors(Manager *m) { |
14228c0d | 443 | _cleanup_closedir_ DIR *d = NULL; |
663996b3 MS |
444 | struct dirent *de; |
445 | int r = 0; | |
446 | ||
447 | assert(m); | |
448 | ||
449 | d = opendir("/run/systemd/inhibit"); | |
450 | if (!d) { | |
451 | if (errno == ENOENT) | |
452 | return 0; | |
453 | ||
f47781d8 | 454 | log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); |
663996b3 MS |
455 | return -errno; |
456 | } | |
457 | ||
14228c0d | 458 | FOREACH_DIRENT(de, d, return -errno) { |
663996b3 MS |
459 | int k; |
460 | Inhibitor *i; | |
461 | ||
462 | if (!dirent_is_file(de)) | |
463 | continue; | |
464 | ||
465 | k = manager_add_inhibitor(m, de->d_name, &i); | |
466 | if (k < 0) { | |
f47781d8 | 467 | log_notice_errno(k, "Couldn't add inhibitor %s: %m", de->d_name); |
663996b3 MS |
468 | r = k; |
469 | continue; | |
470 | } | |
471 | ||
472 | k = inhibitor_load(i); | |
473 | if (k < 0) | |
474 | r = k; | |
475 | } | |
476 | ||
663996b3 MS |
477 | return r; |
478 | } | |
479 | ||
60f067b4 JS |
480 | static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
481 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; | |
482 | Manager *m = userdata; | |
663996b3 MS |
483 | |
484 | assert(m); | |
485 | ||
486 | d = udev_monitor_receive_device(m->udev_seat_monitor); | |
487 | if (!d) | |
488 | return -ENOMEM; | |
489 | ||
60f067b4 JS |
490 | manager_process_seat_device(m, d); |
491 | return 0; | |
663996b3 MS |
492 | } |
493 | ||
60f067b4 JS |
494 | static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
495 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; | |
496 | Manager *m = userdata; | |
14228c0d MB |
497 | |
498 | assert(m); | |
499 | ||
500 | d = udev_monitor_receive_device(m->udev_device_monitor); | |
501 | if (!d) | |
502 | return -ENOMEM; | |
503 | ||
60f067b4 JS |
504 | manager_process_seat_device(m, d); |
505 | return 0; | |
14228c0d MB |
506 | } |
507 | ||
60f067b4 JS |
508 | static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
509 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; | |
510 | Manager *m = userdata; | |
663996b3 MS |
511 | const char *name; |
512 | ||
513 | assert(m); | |
514 | ||
515 | d = udev_monitor_receive_device(m->udev_vcsa_monitor); | |
516 | if (!d) | |
517 | return -ENOMEM; | |
518 | ||
519 | name = udev_device_get_sysname(d); | |
520 | ||
521 | /* Whenever a VCSA device is removed try to reallocate our | |
522 | * VTs, to make sure our auto VTs never go away. */ | |
523 | ||
524 | if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove")) | |
60f067b4 | 525 | seat_preallocate_vts(m->seat0); |
663996b3 | 526 | |
60f067b4 | 527 | return 0; |
663996b3 MS |
528 | } |
529 | ||
60f067b4 JS |
530 | static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
531 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; | |
532 | Manager *m = userdata; | |
663996b3 MS |
533 | |
534 | assert(m); | |
535 | ||
536 | d = udev_monitor_receive_device(m->udev_button_monitor); | |
537 | if (!d) | |
538 | return -ENOMEM; | |
539 | ||
60f067b4 JS |
540 | manager_process_button_device(m, d); |
541 | return 0; | |
663996b3 MS |
542 | } |
543 | ||
60f067b4 JS |
544 | static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
545 | Manager *m = userdata; | |
546 | ||
663996b3 | 547 | assert(m); |
14228c0d | 548 | assert(m->seat0); |
60f067b4 | 549 | assert(m->console_active_fd == fd); |
663996b3 | 550 | |
14228c0d | 551 | seat_read_active_vt(m->seat0); |
663996b3 MS |
552 | return 0; |
553 | } | |
554 | ||
663996b3 MS |
555 | static int manager_reserve_vt(Manager *m) { |
556 | _cleanup_free_ char *p = NULL; | |
557 | ||
558 | assert(m); | |
559 | ||
560 | if (m->reserve_vt <= 0) | |
561 | return 0; | |
562 | ||
563 | if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0) | |
564 | return log_oom(); | |
565 | ||
566 | m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
567 | if (m->reserve_vt_fd < 0) { | |
568 | ||
569 | /* Don't complain on VT-less systems */ | |
570 | if (errno != ENOENT) | |
f47781d8 | 571 | log_warning_errno(errno, "Failed to pin reserved VT: %m"); |
663996b3 MS |
572 | return -errno; |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
60f067b4 JS |
578 | static int manager_connect_bus(Manager *m) { |
579 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
580 | int r; | |
663996b3 | 581 | |
60f067b4 JS |
582 | assert(m); |
583 | assert(!m->bus); | |
663996b3 | 584 | |
60f067b4 | 585 | r = sd_bus_default_system(&m->bus); |
f47781d8 MP |
586 | if (r < 0) |
587 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
663996b3 | 588 | |
60f067b4 | 589 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m); |
f47781d8 MP |
590 | if (r < 0) |
591 | return log_error_errno(r, "Failed to add manager object vtable: %m"); | |
663996b3 | 592 | |
60f067b4 | 593 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m); |
f47781d8 MP |
594 | if (r < 0) |
595 | return log_error_errno(r, "Failed to add seat object vtable: %m"); | |
663996b3 | 596 | |
60f067b4 | 597 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/seat", seat_node_enumerator, m); |
f47781d8 MP |
598 | if (r < 0) |
599 | return log_error_errno(r, "Failed to add seat enumerator: %m"); | |
663996b3 | 600 | |
60f067b4 | 601 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m); |
f47781d8 MP |
602 | if (r < 0) |
603 | return log_error_errno(r, "Failed to add session object vtable: %m"); | |
663996b3 | 604 | |
60f067b4 | 605 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/session", session_node_enumerator, m); |
f47781d8 MP |
606 | if (r < 0) |
607 | return log_error_errno(r, "Failed to add session enumerator: %m"); | |
663996b3 | 608 | |
60f067b4 | 609 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m); |
f47781d8 MP |
610 | if (r < 0) |
611 | return log_error_errno(r, "Failed to add user object vtable: %m"); | |
663996b3 | 612 | |
60f067b4 | 613 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/user", user_node_enumerator, m); |
f47781d8 MP |
614 | if (r < 0) |
615 | return log_error_errno(r, "Failed to add user enumerator: %m"); | |
663996b3 | 616 | |
60f067b4 JS |
617 | r = sd_bus_add_match(m->bus, |
618 | NULL, | |
619 | "type='signal'," | |
620 | "sender='org.freedesktop.DBus'," | |
621 | "interface='org.freedesktop.DBus'," | |
622 | "member='NameOwnerChanged'," | |
623 | "path='/org/freedesktop/DBus'", | |
624 | match_name_owner_changed, m); | |
f47781d8 MP |
625 | if (r < 0) |
626 | return log_error_errno(r, "Failed to add match for NameOwnerChanged: %m"); | |
14228c0d | 627 | |
60f067b4 JS |
628 | r = sd_bus_add_match(m->bus, |
629 | NULL, | |
630 | "type='signal'," | |
631 | "sender='org.freedesktop.systemd1'," | |
632 | "interface='org.freedesktop.systemd1.Manager'," | |
633 | "member='JobRemoved'," | |
634 | "path='/org/freedesktop/systemd1'", | |
635 | match_job_removed, m); | |
f47781d8 MP |
636 | if (r < 0) |
637 | return log_error_errno(r, "Failed to add match for JobRemoved: %m"); | |
663996b3 | 638 | |
60f067b4 JS |
639 | r = sd_bus_add_match(m->bus, |
640 | NULL, | |
641 | "type='signal'," | |
642 | "sender='org.freedesktop.systemd1'," | |
643 | "interface='org.freedesktop.systemd1.Manager'," | |
644 | "member='UnitRemoved'," | |
645 | "path='/org/freedesktop/systemd1'", | |
646 | match_unit_removed, m); | |
f47781d8 MP |
647 | if (r < 0) |
648 | return log_error_errno(r, "Failed to add match for UnitRemoved: %m"); | |
14228c0d | 649 | |
60f067b4 JS |
650 | r = sd_bus_add_match(m->bus, |
651 | NULL, | |
652 | "type='signal'," | |
653 | "sender='org.freedesktop.systemd1'," | |
654 | "interface='org.freedesktop.DBus.Properties'," | |
655 | "member='PropertiesChanged'", | |
656 | match_properties_changed, m); | |
f47781d8 MP |
657 | if (r < 0) |
658 | return log_error_errno(r, "Failed to add match for PropertiesChanged: %m"); | |
14228c0d | 659 | |
60f067b4 JS |
660 | r = sd_bus_add_match(m->bus, |
661 | NULL, | |
662 | "type='signal'," | |
663 | "sender='org.freedesktop.systemd1'," | |
664 | "interface='org.freedesktop.systemd1.Manager'," | |
665 | "member='Reloading'," | |
666 | "path='/org/freedesktop/systemd1'", | |
667 | match_reloading, m); | |
f47781d8 MP |
668 | if (r < 0) |
669 | return log_error_errno(r, "Failed to add match for Reloading: %m"); | |
14228c0d | 670 | |
60f067b4 | 671 | r = sd_bus_call_method( |
14228c0d MB |
672 | m->bus, |
673 | "org.freedesktop.systemd1", | |
674 | "/org/freedesktop/systemd1", | |
675 | "org.freedesktop.systemd1.Manager", | |
676 | "Subscribe", | |
14228c0d | 677 | &error, |
60f067b4 | 678 | NULL, NULL); |
14228c0d | 679 | if (r < 0) { |
60f067b4 JS |
680 | log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); |
681 | return r; | |
663996b3 MS |
682 | } |
683 | ||
60f067b4 | 684 | r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0); |
f47781d8 MP |
685 | if (r < 0) |
686 | return log_error_errno(r, "Failed to register name: %m"); | |
663996b3 | 687 | |
60f067b4 | 688 | r = sd_bus_attach_event(m->bus, m->event, 0); |
f47781d8 MP |
689 | if (r < 0) |
690 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
663996b3 | 691 | |
663996b3 | 692 | return 0; |
663996b3 MS |
693 | } |
694 | ||
5eef597e MP |
695 | static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) { |
696 | Manager *m = data; | |
697 | Session *active, *iter; | |
698 | ||
699 | /* | |
700 | * We got a VT-switch signal and we have to acknowledge it immediately. | |
701 | * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately, | |
702 | * old user-space might run multiple sessions on a single VT, *sigh*. | |
703 | * Therefore, we have to iterate all sessions and find one with a vtfd | |
704 | * on the requested VT. | |
705 | * As only VTs with active controllers have VT_PROCESS set, our current | |
706 | * notion of the active VT might be wrong (for instance if the switch | |
707 | * happens while we setup VT_PROCESS). Therefore, read the current VT | |
708 | * first and then use s->active->vtnr as reference. Note that this is | |
709 | * not racy, as no further VT-switch can happen as long as we're in | |
710 | * synchronous VT_PROCESS mode. | |
711 | */ | |
712 | ||
713 | assert(m->seat0); | |
714 | seat_read_active_vt(m->seat0); | |
715 | ||
716 | active = m->seat0->active; | |
717 | if (!active || active->vtnr < 1) { | |
718 | log_warning("Received VT_PROCESS signal without a registered session on that VT."); | |
719 | return 0; | |
720 | } | |
721 | ||
722 | if (active->vtfd >= 0) { | |
723 | session_leave_vt(active); | |
724 | } else { | |
725 | LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) { | |
726 | if (iter->vtnr == active->vtnr && iter->vtfd >= 0) { | |
727 | session_leave_vt(iter); | |
728 | break; | |
729 | } | |
730 | } | |
731 | } | |
732 | ||
733 | return 0; | |
734 | } | |
735 | ||
663996b3 | 736 | static int manager_connect_console(Manager *m) { |
60f067b4 | 737 | int r; |
663996b3 MS |
738 | |
739 | assert(m); | |
740 | assert(m->console_active_fd < 0); | |
741 | ||
742 | /* On certain architectures (S390 and Xen, and containers), | |
743 | /dev/tty0 does not exist, so don't fail if we can't open | |
744 | it. */ | |
60f067b4 | 745 | if (access("/dev/tty0", F_OK) < 0) |
663996b3 | 746 | return 0; |
663996b3 MS |
747 | |
748 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); | |
749 | if (m->console_active_fd < 0) { | |
750 | ||
751 | /* On some systems the device node /dev/tty0 may exist | |
752 | * even though /sys/class/tty/tty0 does not. */ | |
753 | if (errno == ENOENT) | |
754 | return 0; | |
755 | ||
f47781d8 | 756 | log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); |
663996b3 MS |
757 | return -errno; |
758 | } | |
759 | ||
60f067b4 JS |
760 | r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); |
761 | if (r < 0) { | |
762 | log_error("Failed to watch foreground console"); | |
763 | return r; | |
764 | } | |
663996b3 | 765 | |
5eef597e MP |
766 | /* |
767 | * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used | |
768 | * as VT-acquire signal. We ignore any acquire-events (yes, we still | |
769 | * have to provide a valid signal-number for it!) and acknowledge all | |
770 | * release events immediately. | |
771 | */ | |
772 | ||
773 | if (SIGRTMIN + 1 > SIGRTMAX) { | |
774 | log_error("Not enough real-time signals available: %u-%u", SIGRTMIN, SIGRTMAX); | |
775 | return -EINVAL; | |
776 | } | |
777 | ||
778 | r = ignore_signals(SIGRTMIN + 1, -1); | |
f47781d8 MP |
779 | if (r < 0) |
780 | return log_error_errno(r, "Cannot ignore SIGRTMIN + 1: %m"); | |
5eef597e MP |
781 | |
782 | r = sigprocmask_many(SIG_BLOCK, SIGRTMIN, -1); | |
f47781d8 MP |
783 | if (r < 0) |
784 | return log_error_errno(r, "Cannot block SIGRTMIN: %m"); | |
5eef597e MP |
785 | |
786 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); | |
787 | if (r < 0) | |
788 | return r; | |
789 | ||
663996b3 MS |
790 | return 0; |
791 | } | |
792 | ||
793 | static int manager_connect_udev(Manager *m) { | |
794 | int r; | |
663996b3 MS |
795 | |
796 | assert(m); | |
797 | assert(!m->udev_seat_monitor); | |
14228c0d | 798 | assert(!m->udev_device_monitor); |
663996b3 MS |
799 | assert(!m->udev_vcsa_monitor); |
800 | assert(!m->udev_button_monitor); | |
801 | ||
802 | m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); | |
803 | if (!m->udev_seat_monitor) | |
804 | return -ENOMEM; | |
805 | ||
806 | r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "master-of-seat"); | |
807 | if (r < 0) | |
808 | return r; | |
809 | ||
810 | r = udev_monitor_enable_receiving(m->udev_seat_monitor); | |
811 | if (r < 0) | |
812 | return r; | |
813 | ||
60f067b4 JS |
814 | r = sd_event_add_io(m->event, &m->udev_seat_event_source, udev_monitor_get_fd(m->udev_seat_monitor), EPOLLIN, manager_dispatch_seat_udev, m); |
815 | if (r < 0) | |
816 | return r; | |
663996b3 | 817 | |
14228c0d MB |
818 | m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
819 | if (!m->udev_device_monitor) | |
820 | return -ENOMEM; | |
821 | ||
822 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "input", NULL); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
826 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "graphics", NULL); | |
827 | if (r < 0) | |
828 | return r; | |
829 | ||
830 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "drm", NULL); | |
831 | if (r < 0) | |
832 | return r; | |
833 | ||
834 | r = udev_monitor_enable_receiving(m->udev_device_monitor); | |
835 | if (r < 0) | |
836 | return r; | |
837 | ||
60f067b4 JS |
838 | r = sd_event_add_io(m->event, &m->udev_device_event_source, udev_monitor_get_fd(m->udev_device_monitor), EPOLLIN, manager_dispatch_device_udev, m); |
839 | if (r < 0) | |
840 | return r; | |
14228c0d | 841 | |
663996b3 MS |
842 | /* Don't watch keys if nobody cares */ |
843 | if (m->handle_power_key != HANDLE_IGNORE || | |
844 | m->handle_suspend_key != HANDLE_IGNORE || | |
845 | m->handle_hibernate_key != HANDLE_IGNORE || | |
5eef597e MP |
846 | m->handle_lid_switch != HANDLE_IGNORE || |
847 | m->handle_lid_switch_docked != HANDLE_IGNORE) { | |
663996b3 MS |
848 | |
849 | m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); | |
850 | if (!m->udev_button_monitor) | |
851 | return -ENOMEM; | |
852 | ||
853 | r = udev_monitor_filter_add_match_tag(m->udev_button_monitor, "power-switch"); | |
854 | if (r < 0) | |
855 | return r; | |
856 | ||
857 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_button_monitor, "input", NULL); | |
858 | if (r < 0) | |
859 | return r; | |
860 | ||
861 | r = udev_monitor_enable_receiving(m->udev_button_monitor); | |
862 | if (r < 0) | |
863 | return r; | |
864 | ||
60f067b4 JS |
865 | r = sd_event_add_io(m->event, &m->udev_button_event_source, udev_monitor_get_fd(m->udev_button_monitor), EPOLLIN, manager_dispatch_button_udev, m); |
866 | if (r < 0) | |
867 | return r; | |
663996b3 MS |
868 | } |
869 | ||
870 | /* Don't bother watching VCSA devices, if nobody cares */ | |
871 | if (m->n_autovts > 0 && m->console_active_fd >= 0) { | |
872 | ||
873 | m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); | |
874 | if (!m->udev_vcsa_monitor) | |
875 | return -ENOMEM; | |
876 | ||
877 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL); | |
878 | if (r < 0) | |
879 | return r; | |
880 | ||
881 | r = udev_monitor_enable_receiving(m->udev_vcsa_monitor); | |
882 | if (r < 0) | |
883 | return r; | |
884 | ||
60f067b4 JS |
885 | r = sd_event_add_io(m->event, &m->udev_vcsa_event_source, udev_monitor_get_fd(m->udev_vcsa_monitor), EPOLLIN, manager_dispatch_vcsa_udev, m); |
886 | if (r < 0) | |
887 | return r; | |
663996b3 MS |
888 | } |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | void manager_gc(Manager *m, bool drop_not_started) { | |
894 | Seat *seat; | |
895 | Session *session; | |
896 | User *user; | |
897 | ||
898 | assert(m); | |
899 | ||
900 | while ((seat = m->seat_gc_queue)) { | |
60f067b4 | 901 | LIST_REMOVE(gc_queue, m->seat_gc_queue, seat); |
663996b3 MS |
902 | seat->in_gc_queue = false; |
903 | ||
60f067b4 JS |
904 | if (!seat_check_gc(seat, drop_not_started)) { |
905 | seat_stop(seat, false); | |
663996b3 MS |
906 | seat_free(seat); |
907 | } | |
908 | } | |
909 | ||
910 | while ((session = m->session_gc_queue)) { | |
60f067b4 | 911 | LIST_REMOVE(gc_queue, m->session_gc_queue, session); |
663996b3 MS |
912 | session->in_gc_queue = false; |
913 | ||
60f067b4 JS |
914 | /* First, if we are not closing yet, initiate stopping */ |
915 | if (!session_check_gc(session, drop_not_started) && | |
916 | session_get_state(session) != SESSION_CLOSING) | |
917 | session_stop(session, false); | |
918 | ||
919 | /* Normally, this should make the session busy again, | |
920 | * if it doesn't then let's get rid of it | |
921 | * immediately */ | |
922 | if (!session_check_gc(session, drop_not_started)) { | |
14228c0d | 923 | session_finalize(session); |
663996b3 MS |
924 | session_free(session); |
925 | } | |
926 | } | |
927 | ||
928 | while ((user = m->user_gc_queue)) { | |
60f067b4 | 929 | LIST_REMOVE(gc_queue, m->user_gc_queue, user); |
663996b3 MS |
930 | user->in_gc_queue = false; |
931 | ||
60f067b4 JS |
932 | /* First step: queue stop jobs */ |
933 | if (!user_check_gc(user, drop_not_started)) | |
934 | user_stop(user, false); | |
935 | ||
936 | /* Second step: finalize user */ | |
937 | if (!user_check_gc(user, drop_not_started)) { | |
14228c0d | 938 | user_finalize(user); |
663996b3 MS |
939 | user_free(user); |
940 | } | |
941 | } | |
942 | } | |
943 | ||
60f067b4 JS |
944 | static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { |
945 | Manager *m = userdata; | |
663996b3 | 946 | struct dual_timestamp since; |
60f067b4 | 947 | usec_t n, elapse; |
663996b3 | 948 | int r; |
663996b3 MS |
949 | |
950 | assert(m); | |
951 | ||
952 | if (m->idle_action == HANDLE_IGNORE || | |
60f067b4 JS |
953 | m->idle_action_usec <= 0) |
954 | return 0; | |
663996b3 MS |
955 | |
956 | n = now(CLOCK_MONOTONIC); | |
957 | ||
958 | r = manager_get_idle_hint(m, &since); | |
959 | if (r <= 0) | |
960 | /* Not idle. Let's check if after a timeout it might be idle then. */ | |
60f067b4 | 961 | elapse = n + m->idle_action_usec; |
663996b3 MS |
962 | else { |
963 | /* Idle! Let's see if it's time to do something, or if | |
964 | * we shall sleep for longer. */ | |
965 | ||
966 | if (n >= since.monotonic + m->idle_action_usec && | |
967 | (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) { | |
968 | log_info("System idle. Taking action."); | |
969 | ||
970 | manager_handle_action(m, 0, m->idle_action, false, false); | |
971 | m->idle_action_not_before_usec = n; | |
972 | } | |
973 | ||
60f067b4 | 974 | elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; |
663996b3 MS |
975 | } |
976 | ||
60f067b4 JS |
977 | if (!m->idle_action_event_source) { |
978 | ||
979 | r = sd_event_add_time( | |
980 | m->event, | |
981 | &m->idle_action_event_source, | |
982 | CLOCK_MONOTONIC, | |
983 | elapse, USEC_PER_SEC*30, | |
984 | manager_dispatch_idle_action, m); | |
f47781d8 MP |
985 | if (r < 0) |
986 | return log_error_errno(r, "Failed to add idle event source: %m"); | |
663996b3 | 987 | |
60f067b4 | 988 | r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); |
f47781d8 MP |
989 | if (r < 0) |
990 | return log_error_errno(r, "Failed to set idle event source priority: %m"); | |
60f067b4 JS |
991 | } else { |
992 | r = sd_event_source_set_time(m->idle_action_event_source, elapse); | |
f47781d8 MP |
993 | if (r < 0) |
994 | return log_error_errno(r, "Failed to set idle event timer: %m"); | |
663996b3 | 995 | |
60f067b4 | 996 | r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); |
f47781d8 MP |
997 | if (r < 0) |
998 | return log_error_errno(r, "Failed to enable idle event timer: %m"); | |
663996b3 MS |
999 | } |
1000 | ||
1001 | return 0; | |
663996b3 | 1002 | } |
60f067b4 | 1003 | |
663996b3 MS |
1004 | int manager_startup(Manager *m) { |
1005 | int r; | |
1006 | Seat *seat; | |
1007 | Session *session; | |
1008 | User *user; | |
60f067b4 | 1009 | Button *button; |
663996b3 MS |
1010 | Inhibitor *inhibitor; |
1011 | Iterator i; | |
1012 | ||
1013 | assert(m); | |
663996b3 MS |
1014 | |
1015 | /* Connect to console */ | |
1016 | r = manager_connect_console(m); | |
1017 | if (r < 0) | |
1018 | return r; | |
1019 | ||
1020 | /* Connect to udev */ | |
1021 | r = manager_connect_udev(m); | |
f47781d8 MP |
1022 | if (r < 0) |
1023 | return log_error_errno(r, "Failed to create udev watchers: %m"); | |
663996b3 MS |
1024 | |
1025 | /* Connect to the bus */ | |
1026 | r = manager_connect_bus(m); | |
1027 | if (r < 0) | |
1028 | return r; | |
1029 | ||
1030 | /* Instantiate magic seat 0 */ | |
14228c0d | 1031 | r = manager_add_seat(m, "seat0", &m->seat0); |
f47781d8 MP |
1032 | if (r < 0) |
1033 | return log_error_errno(r, "Failed to add seat0: %m"); | |
60f067b4 JS |
1034 | |
1035 | r = manager_set_lid_switch_ignore(m, 0 + IGNORE_LID_SWITCH_STARTUP_USEC); | |
1036 | if (r < 0) | |
f47781d8 | 1037 | log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); |
663996b3 MS |
1038 | |
1039 | /* Deserialize state */ | |
14228c0d MB |
1040 | r = manager_enumerate_devices(m); |
1041 | if (r < 0) | |
f47781d8 | 1042 | log_warning_errno(r, "Device enumeration failed: %m"); |
14228c0d MB |
1043 | |
1044 | r = manager_enumerate_seats(m); | |
1045 | if (r < 0) | |
f47781d8 | 1046 | log_warning_errno(r, "Seat enumeration failed: %m"); |
14228c0d MB |
1047 | |
1048 | r = manager_enumerate_users(m); | |
1049 | if (r < 0) | |
f47781d8 | 1050 | log_warning_errno(r, "User enumeration failed: %m"); |
14228c0d MB |
1051 | |
1052 | r = manager_enumerate_sessions(m); | |
1053 | if (r < 0) | |
f47781d8 | 1054 | log_warning_errno(r, "Session enumeration failed: %m"); |
14228c0d MB |
1055 | |
1056 | r = manager_enumerate_inhibitors(m); | |
1057 | if (r < 0) | |
f47781d8 | 1058 | log_warning_errno(r, "Inhibitor enumeration failed: %m"); |
14228c0d MB |
1059 | |
1060 | r = manager_enumerate_buttons(m); | |
1061 | if (r < 0) | |
f47781d8 | 1062 | log_warning_errno(r, "Button enumeration failed: %m"); |
663996b3 MS |
1063 | |
1064 | /* Remove stale objects before we start them */ | |
1065 | manager_gc(m, false); | |
1066 | ||
1067 | /* Reserve the special reserved VT */ | |
1068 | manager_reserve_vt(m); | |
1069 | ||
1070 | /* And start everything */ | |
1071 | HASHMAP_FOREACH(seat, m->seats, i) | |
1072 | seat_start(seat); | |
1073 | ||
1074 | HASHMAP_FOREACH(user, m->users, i) | |
1075 | user_start(user); | |
1076 | ||
1077 | HASHMAP_FOREACH(session, m->sessions, i) | |
1078 | session_start(session); | |
1079 | ||
1080 | HASHMAP_FOREACH(inhibitor, m->inhibitors, i) | |
1081 | inhibitor_start(inhibitor); | |
1082 | ||
60f067b4 JS |
1083 | HASHMAP_FOREACH(button, m->buttons, i) |
1084 | button_check_switches(button); | |
663996b3 | 1085 | |
60f067b4 | 1086 | manager_dispatch_idle_action(NULL, 0, m); |
663996b3 | 1087 | |
60f067b4 | 1088 | return 0; |
663996b3 MS |
1089 | } |
1090 | ||
1091 | int manager_run(Manager *m) { | |
60f067b4 JS |
1092 | int r; |
1093 | ||
663996b3 MS |
1094 | assert(m); |
1095 | ||
1096 | for (;;) { | |
60f067b4 JS |
1097 | usec_t us = (uint64_t) -1; |
1098 | ||
1099 | r = sd_event_get_state(m->event); | |
1100 | if (r < 0) | |
1101 | return r; | |
1102 | if (r == SD_EVENT_FINISHED) | |
1103 | return 0; | |
663996b3 MS |
1104 | |
1105 | manager_gc(m, true); | |
1106 | ||
1107 | if (manager_dispatch_delayed(m) > 0) | |
1108 | continue; | |
1109 | ||
663996b3 MS |
1110 | if (m->action_what != 0 && !m->action_job) { |
1111 | usec_t x, y; | |
1112 | ||
1113 | x = now(CLOCK_MONOTONIC); | |
1114 | y = m->action_timestamp + m->inhibit_delay_max; | |
1115 | ||
60f067b4 | 1116 | us = x >= y ? 0 : y - x; |
663996b3 MS |
1117 | } |
1118 | ||
60f067b4 JS |
1119 | r = sd_event_run(m->event, us); |
1120 | if (r < 0) | |
1121 | return r; | |
663996b3 | 1122 | } |
663996b3 MS |
1123 | } |
1124 | ||
1125 | static int manager_parse_config_file(Manager *m) { | |
663996b3 MS |
1126 | assert(m); |
1127 | ||
f47781d8 MP |
1128 | return config_parse_many("/etc/systemd/logind.conf", |
1129 | CONF_DIRS_NULSTR("systemd/logind.conf"), | |
1130 | "Login\0", | |
1131 | config_item_perf_lookup, logind_gperf_lookup, | |
1132 | false, m); | |
663996b3 MS |
1133 | } |
1134 | ||
1135 | int main(int argc, char *argv[]) { | |
1136 | Manager *m = NULL; | |
1137 | int r; | |
1138 | ||
1139 | log_set_target(LOG_TARGET_AUTO); | |
1140 | log_set_facility(LOG_AUTH); | |
1141 | log_parse_environment(); | |
1142 | log_open(); | |
1143 | ||
1144 | umask(0022); | |
1145 | ||
1146 | if (argc != 1) { | |
1147 | log_error("This program takes no arguments."); | |
1148 | r = -EINVAL; | |
1149 | goto finish; | |
1150 | } | |
1151 | ||
1152 | /* Always create the directories people can create inotify | |
1153 | * watches in. Note that some applications might check for the | |
1154 | * existence of /run/systemd/seats/ to determine whether | |
1155 | * logind is available, so please always make sure this check | |
1156 | * stays in. */ | |
1157 | mkdir_label("/run/systemd/seats", 0755); | |
1158 | mkdir_label("/run/systemd/users", 0755); | |
1159 | mkdir_label("/run/systemd/sessions", 0755); | |
1160 | ||
1161 | m = manager_new(); | |
1162 | if (!m) { | |
1163 | r = log_oom(); | |
1164 | goto finish; | |
1165 | } | |
1166 | ||
1167 | manager_parse_config_file(m); | |
1168 | ||
1169 | r = manager_startup(m); | |
1170 | if (r < 0) { | |
f47781d8 | 1171 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
663996b3 MS |
1172 | goto finish; |
1173 | } | |
1174 | ||
60f067b4 | 1175 | log_debug("systemd-logind running as pid "PID_FMT, getpid()); |
663996b3 MS |
1176 | |
1177 | sd_notify(false, | |
1178 | "READY=1\n" | |
1179 | "STATUS=Processing requests..."); | |
1180 | ||
1181 | r = manager_run(m); | |
1182 | ||
60f067b4 | 1183 | log_debug("systemd-logind stopped as pid "PID_FMT, getpid()); |
663996b3 MS |
1184 | |
1185 | finish: | |
1186 | sd_notify(false, | |
5eef597e | 1187 | "STOPPING=1\n" |
663996b3 MS |
1188 | "STATUS=Shutting down..."); |
1189 | ||
1190 | if (m) | |
1191 | manager_free(m); | |
1192 | ||
1193 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1194 | } |