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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> | |
20263082 LP |
23 | #include <fcntl.h> |
24 | #include <string.h> | |
25 | #include <unistd.h> | |
20263082 | 26 | |
07630cea | 27 | #include "libudev.h" |
cc377381 | 28 | #include "sd-daemon.h" |
07630cea | 29 | |
cc377381 | 30 | #include "bus-error.h" |
07630cea LP |
31 | #include "bus-util.h" |
32 | #include "conf-parser.h" | |
3ffd4af2 | 33 | #include "fd-util.h" |
6482f626 | 34 | #include "formats-util.h" |
3ffd4af2 | 35 | #include "logind.h" |
24882e06 | 36 | #include "signal-util.h" |
07630cea LP |
37 | #include "strv.h" |
38 | #include "udev-util.h" | |
20263082 | 39 | |
905f0a39 DM |
40 | static void manager_free(Manager *m); |
41 | ||
42 | static Manager *manager_new(void) { | |
20263082 | 43 | Manager *m; |
cc377381 | 44 | int r; |
20263082 LP |
45 | |
46 | m = new0(Manager, 1); | |
47 | if (!m) | |
48 | return NULL; | |
49 | ||
50 | m->console_active_fd = -1; | |
98a77df5 | 51 | m->reserve_vt_fd = -1; |
069cfc85 | 52 | |
20263082 | 53 | m->n_autovts = 6; |
98a77df5 | 54 | m->reserve_vt = 6; |
66cdd0f2 | 55 | m->remove_ipc = true; |
eecd1362 | 56 | m->inhibit_delay_max = 5 * USEC_PER_SEC; |
beaafb2e | 57 | m->handle_power_key = HANDLE_POWEROFF; |
8e7fd6ad LP |
58 | m->handle_suspend_key = HANDLE_SUSPEND; |
59 | m->handle_hibernate_key = HANDLE_HIBERNATE; | |
beaafb2e | 60 | m->handle_lid_switch = HANDLE_SUSPEND; |
3c56cab4 | 61 | m->handle_lid_switch_docked = HANDLE_IGNORE; |
beaafb2e | 62 | m->lid_switch_ignore_inhibited = true; |
9d10cbee | 63 | m->holdoff_timeout_usec = 30 * USEC_PER_SEC; |
20263082 | 64 | |
23406ce5 LP |
65 | m->idle_action_usec = 30 * USEC_PER_MINUTE; |
66 | m->idle_action = HANDLE_IGNORE; | |
67 | m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); | |
68 | ||
1c231f56 LP |
69 | m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */ |
70 | ||
d5099efc MS |
71 | m->devices = hashmap_new(&string_hash_ops); |
72 | m->seats = hashmap_new(&string_hash_ops); | |
73 | m->sessions = hashmap_new(&string_hash_ops); | |
74 | m->users = hashmap_new(NULL); | |
75 | m->inhibitors = hashmap_new(&string_hash_ops); | |
76 | m->buttons = hashmap_new(&string_hash_ops); | |
f8e2fb7b | 77 | |
d5099efc MS |
78 | m->user_units = hashmap_new(&string_hash_ops); |
79 | m->session_units = hashmap_new(&string_hash_ops); | |
8c8c4351 | 80 | |
3cde9e8f | 81 | if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->user_units || !m->session_units) |
ed4ba7e4 | 82 | goto fail; |
25d93491 | 83 | |
25d93491 | 84 | m->kill_exclude_users = strv_new("root", NULL); |
ed4ba7e4 LP |
85 | if (!m->kill_exclude_users) |
86 | goto fail; | |
20263082 LP |
87 | |
88 | m->udev = udev_new(); | |
ed4ba7e4 LP |
89 | if (!m->udev) |
90 | goto fail; | |
20263082 | 91 | |
afc6adb5 | 92 | r = sd_event_default(&m->event); |
ed4ba7e4 LP |
93 | if (r < 0) |
94 | goto fail; | |
cc377381 | 95 | |
cde93897 LP |
96 | sd_event_set_watchdog(m->event, true); |
97 | ||
20263082 | 98 | return m; |
ed4ba7e4 LP |
99 | |
100 | fail: | |
101 | manager_free(m); | |
102 | return NULL; | |
20263082 LP |
103 | } |
104 | ||
905f0a39 | 105 | static void manager_free(Manager *m) { |
20263082 LP |
106 | Session *session; |
107 | User *u; | |
108 | Device *d; | |
109 | Seat *s; | |
f8e2fb7b | 110 | Inhibitor *i; |
069cfc85 | 111 | Button *b; |
20263082 LP |
112 | |
113 | assert(m); | |
114 | ||
115 | while ((session = hashmap_first(m->sessions))) | |
116 | session_free(session); | |
117 | ||
118 | while ((u = hashmap_first(m->users))) | |
119 | user_free(u); | |
120 | ||
121 | while ((d = hashmap_first(m->devices))) | |
122 | device_free(d); | |
123 | ||
124 | while ((s = hashmap_first(m->seats))) | |
125 | seat_free(s); | |
126 | ||
f8e2fb7b LP |
127 | while ((i = hashmap_first(m->inhibitors))) |
128 | inhibitor_free(i); | |
129 | ||
069cfc85 LP |
130 | while ((b = hashmap_first(m->buttons))) |
131 | button_free(b); | |
132 | ||
20263082 LP |
133 | hashmap_free(m->devices); |
134 | hashmap_free(m->seats); | |
f8e2fb7b LP |
135 | hashmap_free(m->sessions); |
136 | hashmap_free(m->users); | |
137 | hashmap_free(m->inhibitors); | |
069cfc85 | 138 | hashmap_free(m->buttons); |
f8e2fb7b | 139 | |
fb6becb4 LP |
140 | hashmap_free(m->user_units); |
141 | hashmap_free(m->session_units); | |
8c8c4351 | 142 | |
cc377381 | 143 | sd_event_source_unref(m->idle_action_event_source); |
c0f32805 | 144 | sd_event_source_unref(m->inhibit_timeout_source); |
8aaa023a | 145 | sd_event_source_unref(m->scheduled_shutdown_timeout_source); |
867c37f6 | 146 | sd_event_source_unref(m->nologin_timeout_source); |
e2fa5721 | 147 | sd_event_source_unref(m->wall_message_timeout_source); |
cc377381 LP |
148 | |
149 | sd_event_source_unref(m->console_active_event_source); | |
150 | sd_event_source_unref(m->udev_seat_event_source); | |
151 | sd_event_source_unref(m->udev_device_event_source); | |
152 | sd_event_source_unref(m->udev_vcsa_event_source); | |
153 | sd_event_source_unref(m->udev_button_event_source); | |
f9cd6be1 | 154 | sd_event_source_unref(m->lid_switch_ignore_event_source); |
20263082 | 155 | |
03e334a1 | 156 | safe_close(m->console_active_fd); |
20263082 | 157 | |
3e044c49 ME |
158 | udev_monitor_unref(m->udev_seat_monitor); |
159 | udev_monitor_unref(m->udev_device_monitor); | |
160 | udev_monitor_unref(m->udev_vcsa_monitor); | |
161 | udev_monitor_unref(m->udev_button_monitor); | |
162 | ||
163 | udev_unref(m->udev); | |
20263082 | 164 | |
867c37f6 | 165 | if (m->unlink_nologin) |
a790812c | 166 | (void) unlink("/run/nologin"); |
867c37f6 | 167 | |
36e34057 | 168 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
20263082 | 169 | |
cc377381 LP |
170 | sd_bus_unref(m->bus); |
171 | sd_event_unref(m->event); | |
20263082 | 172 | |
03e334a1 | 173 | safe_close(m->reserve_vt_fd); |
98a77df5 | 174 | |
193197e8 LP |
175 | strv_free(m->kill_only_users); |
176 | strv_free(m->kill_exclude_users); | |
177 | ||
8aaa023a | 178 | free(m->scheduled_shutdown_type); |
e2fa5721 DM |
179 | free(m->scheduled_shutdown_tty); |
180 | free(m->wall_message); | |
af9792ac | 181 | free(m->action_job); |
20263082 LP |
182 | free(m); |
183 | } | |
184 | ||
9588bc32 | 185 | static int manager_enumerate_devices(Manager *m) { |
20263082 | 186 | struct udev_list_entry *item = NULL, *first = NULL; |
bf5332d2 | 187 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
14c3baca | 188 | int r; |
20263082 LP |
189 | |
190 | assert(m); | |
191 | ||
192 | /* Loads devices from udev and creates seats for them as | |
193 | * necessary */ | |
194 | ||
195 | e = udev_enumerate_new(m->udev); | |
bf5332d2 LP |
196 | if (!e) |
197 | return -ENOMEM; | |
20263082 | 198 | |
2d96536d | 199 | r = udev_enumerate_add_match_tag(e, "master-of-seat"); |
14c3baca | 200 | if (r < 0) |
bf5332d2 | 201 | return r; |
20263082 | 202 | |
e1202047 LP |
203 | r = udev_enumerate_add_match_is_initialized(e); |
204 | if (r < 0) | |
205 | return r; | |
206 | ||
14c3baca LP |
207 | r = udev_enumerate_scan_devices(e); |
208 | if (r < 0) | |
bf5332d2 | 209 | return r; |
20263082 LP |
210 | |
211 | first = udev_enumerate_get_list_entry(e); | |
212 | udev_list_entry_foreach(item, first) { | |
bf5332d2 | 213 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
20263082 LP |
214 | int k; |
215 | ||
216 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
bf5332d2 LP |
217 | if (!d) |
218 | return -ENOMEM; | |
20263082 | 219 | |
bf5332d2 | 220 | k = manager_process_seat_device(m, d); |
20263082 LP |
221 | if (k < 0) |
222 | r = k; | |
223 | } | |
224 | ||
20263082 LP |
225 | return r; |
226 | } | |
227 | ||
9588bc32 | 228 | static int manager_enumerate_buttons(Manager *m) { |
bf5332d2 | 229 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
069cfc85 | 230 | struct udev_list_entry *item = NULL, *first = NULL; |
069cfc85 LP |
231 | int r; |
232 | ||
233 | assert(m); | |
234 | ||
235 | /* Loads buttons from udev */ | |
236 | ||
beaafb2e | 237 | if (m->handle_power_key == HANDLE_IGNORE && |
8e7fd6ad LP |
238 | m->handle_suspend_key == HANDLE_IGNORE && |
239 | m->handle_hibernate_key == HANDLE_IGNORE && | |
3c56cab4 BW |
240 | m->handle_lid_switch == HANDLE_IGNORE && |
241 | m->handle_lid_switch_docked == HANDLE_IGNORE) | |
6de0e0e5 LP |
242 | return 0; |
243 | ||
069cfc85 | 244 | e = udev_enumerate_new(m->udev); |
bf5332d2 LP |
245 | if (!e) |
246 | return -ENOMEM; | |
069cfc85 LP |
247 | |
248 | r = udev_enumerate_add_match_subsystem(e, "input"); | |
249 | if (r < 0) | |
bf5332d2 | 250 | return r; |
069cfc85 LP |
251 | |
252 | r = udev_enumerate_add_match_tag(e, "power-switch"); | |
253 | if (r < 0) | |
bf5332d2 | 254 | return r; |
069cfc85 | 255 | |
e1202047 LP |
256 | r = udev_enumerate_add_match_is_initialized(e); |
257 | if (r < 0) | |
258 | return r; | |
259 | ||
069cfc85 LP |
260 | r = udev_enumerate_scan_devices(e); |
261 | if (r < 0) | |
bf5332d2 | 262 | return r; |
069cfc85 LP |
263 | |
264 | first = udev_enumerate_get_list_entry(e); | |
265 | udev_list_entry_foreach(item, first) { | |
bf5332d2 | 266 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
069cfc85 LP |
267 | int k; |
268 | ||
269 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
bf5332d2 LP |
270 | if (!d) |
271 | return -ENOMEM; | |
069cfc85 | 272 | |
bf5332d2 | 273 | k = manager_process_button_device(m, d); |
069cfc85 LP |
274 | if (k < 0) |
275 | r = k; | |
276 | } | |
277 | ||
069cfc85 LP |
278 | return r; |
279 | } | |
280 | ||
9588bc32 | 281 | static int manager_enumerate_seats(Manager *m) { |
9444b1f2 | 282 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
283 | struct dirent *de; |
284 | int r = 0; | |
285 | ||
286 | assert(m); | |
287 | ||
288 | /* This loads data about seats stored on disk, but does not | |
289 | * actually create any seats. Removes data of seats that no | |
290 | * longer exist. */ | |
291 | ||
292 | d = opendir("/run/systemd/seats"); | |
293 | if (!d) { | |
294 | if (errno == ENOENT) | |
295 | return 0; | |
296 | ||
56f64d95 | 297 | log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); |
20263082 LP |
298 | return -errno; |
299 | } | |
300 | ||
9444b1f2 | 301 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 LP |
302 | Seat *s; |
303 | int k; | |
304 | ||
305 | if (!dirent_is_file(de)) | |
306 | continue; | |
307 | ||
308 | s = hashmap_get(m->seats, de->d_name); | |
309 | if (!s) { | |
310 | unlinkat(dirfd(d), de->d_name, 0); | |
311 | continue; | |
312 | } | |
313 | ||
314 | k = seat_load(s); | |
315 | if (k < 0) | |
316 | r = k; | |
317 | } | |
318 | ||
14c3baca LP |
319 | return r; |
320 | } | |
20263082 | 321 | |
14c3baca | 322 | static int manager_enumerate_linger_users(Manager *m) { |
9444b1f2 | 323 | _cleanup_closedir_ DIR *d = NULL; |
14c3baca LP |
324 | struct dirent *de; |
325 | int r = 0; | |
326 | ||
9444b1f2 LP |
327 | assert(m); |
328 | ||
14c3baca LP |
329 | d = opendir("/var/lib/systemd/linger"); |
330 | if (!d) { | |
331 | if (errno == ENOENT) | |
332 | return 0; | |
333 | ||
56f64d95 | 334 | log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); |
14c3baca LP |
335 | return -errno; |
336 | } | |
337 | ||
9444b1f2 | 338 | FOREACH_DIRENT(de, d, return -errno) { |
14c3baca LP |
339 | int k; |
340 | ||
341 | if (!dirent_is_file(de)) | |
20263082 LP |
342 | continue; |
343 | ||
14c3baca LP |
344 | k = manager_add_user_by_name(m, de->d_name, NULL); |
345 | if (k < 0) { | |
da927ba9 | 346 | log_notice_errno(k, "Couldn't add lingering user %s: %m", de->d_name); |
14c3baca | 347 | r = k; |
20263082 LP |
348 | } |
349 | } | |
350 | ||
20263082 LP |
351 | return r; |
352 | } | |
353 | ||
9588bc32 | 354 | static int manager_enumerate_users(Manager *m) { |
9444b1f2 | 355 | _cleanup_closedir_ DIR *d = NULL; |
20263082 | 356 | struct dirent *de; |
14c3baca | 357 | int r, k; |
20263082 LP |
358 | |
359 | assert(m); | |
360 | ||
9444b1f2 | 361 | /* Add lingering users */ |
b3629c7d | 362 | r = manager_enumerate_linger_users(m); |
14c3baca | 363 | |
9444b1f2 | 364 | /* Read in user data stored on disk */ |
20263082 LP |
365 | d = opendir("/run/systemd/users"); |
366 | if (!d) { | |
367 | if (errno == ENOENT) | |
368 | return 0; | |
369 | ||
56f64d95 | 370 | log_error_errno(errno, "Failed to open /run/systemd/users: %m"); |
20263082 LP |
371 | return -errno; |
372 | } | |
373 | ||
9444b1f2 | 374 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 375 | User *u; |
20263082 LP |
376 | |
377 | if (!dirent_is_file(de)) | |
378 | continue; | |
379 | ||
9444b1f2 | 380 | k = manager_add_user_by_name(m, de->d_name, &u); |
20263082 | 381 | if (k < 0) { |
da927ba9 | 382 | log_error_errno(k, "Failed to add user by file name %s: %m", de->d_name); |
20263082 | 383 | |
9444b1f2 | 384 | r = k; |
20263082 LP |
385 | continue; |
386 | } | |
387 | ||
9444b1f2 LP |
388 | user_add_to_gc_queue(u); |
389 | ||
20263082 LP |
390 | k = user_load(u); |
391 | if (k < 0) | |
392 | r = k; | |
393 | } | |
394 | ||
20263082 LP |
395 | return r; |
396 | } | |
397 | ||
9588bc32 | 398 | static int manager_enumerate_sessions(Manager *m) { |
9444b1f2 LP |
399 | _cleanup_closedir_ DIR *d = NULL; |
400 | struct dirent *de; | |
20263082 LP |
401 | int r = 0; |
402 | ||
9444b1f2 LP |
403 | assert(m); |
404 | ||
405 | /* Read in session data stored on disk */ | |
406 | d = opendir("/run/systemd/sessions"); | |
407 | if (!d) { | |
408 | if (errno == ENOENT) | |
409 | return 0; | |
410 | ||
56f64d95 | 411 | log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); |
9444b1f2 LP |
412 | return -errno; |
413 | } | |
414 | ||
415 | FOREACH_DIRENT(de, d, return -errno) { | |
416 | struct Session *s; | |
20263082 LP |
417 | int k; |
418 | ||
9444b1f2 | 419 | if (!dirent_is_file(de)) |
14c3baca LP |
420 | continue; |
421 | ||
4b549144 ZJS |
422 | if (!session_id_valid(de->d_name)) { |
423 | log_warning("Invalid session file name '%s', ignoring.", de->d_name); | |
424 | r = -EINVAL; | |
425 | continue; | |
426 | } | |
427 | ||
9444b1f2 | 428 | k = manager_add_session(m, de->d_name, &s); |
20263082 | 429 | if (k < 0) { |
da927ba9 | 430 | log_error_errno(k, "Failed to add session by file name %s: %m", de->d_name); |
20263082 | 431 | |
20263082 LP |
432 | r = k; |
433 | continue; | |
434 | } | |
435 | ||
9444b1f2 | 436 | session_add_to_gc_queue(s); |
20263082 | 437 | |
9444b1f2 | 438 | k = session_load(s); |
20263082 LP |
439 | if (k < 0) |
440 | r = k; | |
441 | } | |
442 | ||
443 | return r; | |
444 | } | |
445 | ||
9588bc32 | 446 | static int manager_enumerate_inhibitors(Manager *m) { |
9444b1f2 | 447 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
448 | struct dirent *de; |
449 | int r = 0; | |
450 | ||
451 | assert(m); | |
452 | ||
9444b1f2 | 453 | d = opendir("/run/systemd/inhibit"); |
20263082 LP |
454 | if (!d) { |
455 | if (errno == ENOENT) | |
456 | return 0; | |
457 | ||
56f64d95 | 458 | log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); |
20263082 LP |
459 | return -errno; |
460 | } | |
461 | ||
9444b1f2 | 462 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 463 | int k; |
9444b1f2 | 464 | Inhibitor *i; |
20263082 LP |
465 | |
466 | if (!dirent_is_file(de)) | |
467 | continue; | |
468 | ||
9444b1f2 LP |
469 | k = manager_add_inhibitor(m, de->d_name, &i); |
470 | if (k < 0) { | |
da927ba9 | 471 | log_notice_errno(k, "Couldn't add inhibitor %s: %m", de->d_name); |
9444b1f2 | 472 | r = k; |
20263082 LP |
473 | continue; |
474 | } | |
475 | ||
9444b1f2 | 476 | k = inhibitor_load(i); |
20263082 LP |
477 | if (k < 0) |
478 | r = k; | |
479 | } | |
480 | ||
20263082 LP |
481 | return r; |
482 | } | |
483 | ||
cc377381 | 484 | static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 485 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 486 | Manager *m = userdata; |
20263082 LP |
487 | |
488 | assert(m); | |
489 | ||
30ed21ce | 490 | d = udev_monitor_receive_device(m->udev_seat_monitor); |
20263082 LP |
491 | if (!d) |
492 | return -ENOMEM; | |
493 | ||
7b77ed8c LP |
494 | manager_process_seat_device(m, d); |
495 | return 0; | |
30ed21ce LP |
496 | } |
497 | ||
cc377381 | 498 | static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 499 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 500 | Manager *m = userdata; |
718d006a DH |
501 | |
502 | assert(m); | |
503 | ||
504 | d = udev_monitor_receive_device(m->udev_device_monitor); | |
505 | if (!d) | |
506 | return -ENOMEM; | |
507 | ||
7b77ed8c LP |
508 | manager_process_seat_device(m, d); |
509 | return 0; | |
718d006a DH |
510 | } |
511 | ||
cc377381 | 512 | static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 513 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 514 | Manager *m = userdata; |
30ed21ce LP |
515 | const char *name; |
516 | ||
517 | assert(m); | |
518 | ||
519 | d = udev_monitor_receive_device(m->udev_vcsa_monitor); | |
520 | if (!d) | |
521 | return -ENOMEM; | |
522 | ||
523 | name = udev_device_get_sysname(d); | |
524 | ||
525 | /* Whenever a VCSA device is removed try to reallocate our | |
526 | * VTs, to make sure our auto VTs never go away. */ | |
527 | ||
528 | if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove")) | |
7b77ed8c | 529 | seat_preallocate_vts(m->seat0); |
30ed21ce | 530 | |
7b77ed8c | 531 | return 0; |
20263082 LP |
532 | } |
533 | ||
cc377381 | 534 | static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 535 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 536 | Manager *m = userdata; |
069cfc85 LP |
537 | |
538 | assert(m); | |
539 | ||
540 | d = udev_monitor_receive_device(m->udev_button_monitor); | |
541 | if (!d) | |
542 | return -ENOMEM; | |
543 | ||
7b77ed8c LP |
544 | manager_process_button_device(m, d); |
545 | return 0; | |
069cfc85 LP |
546 | } |
547 | ||
cc377381 LP |
548 | static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
549 | Manager *m = userdata; | |
550 | ||
20263082 | 551 | assert(m); |
92432fcc | 552 | assert(m->seat0); |
cc377381 | 553 | assert(m->console_active_fd == fd); |
20263082 | 554 | |
92432fcc | 555 | seat_read_active_vt(m->seat0); |
20263082 LP |
556 | return 0; |
557 | } | |
558 | ||
98a77df5 LP |
559 | static int manager_reserve_vt(Manager *m) { |
560 | _cleanup_free_ char *p = NULL; | |
561 | ||
562 | assert(m); | |
563 | ||
564 | if (m->reserve_vt <= 0) | |
565 | return 0; | |
566 | ||
567 | if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0) | |
568 | return log_oom(); | |
569 | ||
570 | m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
571 | if (m->reserve_vt_fd < 0) { | |
d4d882e5 LP |
572 | |
573 | /* Don't complain on VT-less systems */ | |
574 | if (errno != ENOENT) | |
56f64d95 | 575 | log_warning_errno(errno, "Failed to pin reserved VT: %m"); |
98a77df5 LP |
576 | return -errno; |
577 | } | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
cc377381 LP |
582 | static int manager_connect_bus(Manager *m) { |
583 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
584 | int r; | |
31b79c2b | 585 | |
cc377381 LP |
586 | assert(m); |
587 | assert(!m->bus); | |
31b79c2b | 588 | |
76b54375 | 589 | r = sd_bus_default_system(&m->bus); |
f647962d MS |
590 | if (r < 0) |
591 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
31b79c2b | 592 | |
19befb2d | 593 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m); |
f647962d MS |
594 | if (r < 0) |
595 | return log_error_errno(r, "Failed to add manager object vtable: %m"); | |
f8e2fb7b | 596 | |
19befb2d | 597 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m); |
f647962d MS |
598 | if (r < 0) |
599 | return log_error_errno(r, "Failed to add seat object vtable: %m"); | |
069cfc85 | 600 | |
19befb2d | 601 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/seat", seat_node_enumerator, m); |
f647962d MS |
602 | if (r < 0) |
603 | return log_error_errno(r, "Failed to add seat enumerator: %m"); | |
20263082 | 604 | |
19befb2d | 605 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m); |
f647962d MS |
606 | if (r < 0) |
607 | return log_error_errno(r, "Failed to add session object vtable: %m"); | |
20263082 | 608 | |
19befb2d | 609 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/session", session_node_enumerator, m); |
f647962d MS |
610 | if (r < 0) |
611 | return log_error_errno(r, "Failed to add session enumerator: %m"); | |
20263082 | 612 | |
19befb2d | 613 | r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m); |
f647962d MS |
614 | if (r < 0) |
615 | return log_error_errno(r, "Failed to add user object vtable: %m"); | |
20263082 | 616 | |
19befb2d | 617 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/user", user_node_enumerator, m); |
f647962d MS |
618 | if (r < 0) |
619 | return log_error_errno(r, "Failed to add user enumerator: %m"); | |
20263082 | 620 | |
cc377381 | 621 | r = sd_bus_add_match(m->bus, |
19befb2d | 622 | NULL, |
cc377381 LP |
623 | "type='signal'," |
624 | "sender='org.freedesktop.systemd1'," | |
625 | "interface='org.freedesktop.systemd1.Manager'," | |
626 | "member='JobRemoved'," | |
627 | "path='/org/freedesktop/systemd1'", | |
628 | match_job_removed, m); | |
f647962d MS |
629 | if (r < 0) |
630 | return log_error_errno(r, "Failed to add match for JobRemoved: %m"); | |
943aca8e | 631 | |
cc377381 | 632 | r = sd_bus_add_match(m->bus, |
19befb2d | 633 | NULL, |
cc377381 LP |
634 | "type='signal'," |
635 | "sender='org.freedesktop.systemd1'," | |
636 | "interface='org.freedesktop.systemd1.Manager'," | |
637 | "member='UnitRemoved'," | |
638 | "path='/org/freedesktop/systemd1'", | |
639 | match_unit_removed, m); | |
f647962d MS |
640 | if (r < 0) |
641 | return log_error_errno(r, "Failed to add match for UnitRemoved: %m"); | |
fb6becb4 | 642 | |
cc377381 | 643 | r = sd_bus_add_match(m->bus, |
19befb2d | 644 | NULL, |
cc377381 LP |
645 | "type='signal'," |
646 | "sender='org.freedesktop.systemd1'," | |
647 | "interface='org.freedesktop.DBus.Properties'," | |
648 | "member='PropertiesChanged'", | |
649 | match_properties_changed, m); | |
f647962d MS |
650 | if (r < 0) |
651 | return log_error_errno(r, "Failed to add match for PropertiesChanged: %m"); | |
fb6becb4 | 652 | |
cc377381 | 653 | r = sd_bus_add_match(m->bus, |
19befb2d | 654 | NULL, |
cc377381 LP |
655 | "type='signal'," |
656 | "sender='org.freedesktop.systemd1'," | |
657 | "interface='org.freedesktop.systemd1.Manager'," | |
658 | "member='Reloading'," | |
659 | "path='/org/freedesktop/systemd1'", | |
660 | match_reloading, m); | |
f647962d MS |
661 | if (r < 0) |
662 | return log_error_errno(r, "Failed to add match for Reloading: %m"); | |
6797c324 | 663 | |
cc377381 | 664 | r = sd_bus_call_method( |
fb6becb4 LP |
665 | m->bus, |
666 | "org.freedesktop.systemd1", | |
667 | "/org/freedesktop/systemd1", | |
668 | "org.freedesktop.systemd1.Manager", | |
669 | "Subscribe", | |
fb6becb4 | 670 | &error, |
cc377381 | 671 | NULL, NULL); |
fb6becb4 | 672 | if (r < 0) { |
cc377381 LP |
673 | log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); |
674 | return r; | |
20263082 LP |
675 | } |
676 | ||
5bb658a1 | 677 | r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0); |
f647962d MS |
678 | if (r < 0) |
679 | return log_error_errno(r, "Failed to register name: %m"); | |
bafd4449 | 680 | |
cc377381 | 681 | r = sd_bus_attach_event(m->bus, m->event, 0); |
f647962d MS |
682 | if (r < 0) |
683 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
20263082 | 684 | |
20263082 | 685 | return 0; |
20263082 LP |
686 | } |
687 | ||
92683ad2 DH |
688 | static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) { |
689 | Manager *m = data; | |
690 | Session *active, *iter; | |
691 | ||
692 | /* | |
693 | * We got a VT-switch signal and we have to acknowledge it immediately. | |
694 | * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately, | |
695 | * old user-space might run multiple sessions on a single VT, *sigh*. | |
696 | * Therefore, we have to iterate all sessions and find one with a vtfd | |
697 | * on the requested VT. | |
698 | * As only VTs with active controllers have VT_PROCESS set, our current | |
699 | * notion of the active VT might be wrong (for instance if the switch | |
700 | * happens while we setup VT_PROCESS). Therefore, read the current VT | |
701 | * first and then use s->active->vtnr as reference. Note that this is | |
702 | * not racy, as no further VT-switch can happen as long as we're in | |
703 | * synchronous VT_PROCESS mode. | |
704 | */ | |
705 | ||
706 | assert(m->seat0); | |
707 | seat_read_active_vt(m->seat0); | |
708 | ||
709 | active = m->seat0->active; | |
710 | if (!active || active->vtnr < 1) { | |
711 | log_warning("Received VT_PROCESS signal without a registered session on that VT."); | |
712 | return 0; | |
713 | } | |
714 | ||
715 | if (active->vtfd >= 0) { | |
2ec3ff66 | 716 | session_leave_vt(active); |
92683ad2 DH |
717 | } else { |
718 | LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) { | |
719 | if (iter->vtnr == active->vtnr && iter->vtfd >= 0) { | |
2ec3ff66 | 720 | session_leave_vt(iter); |
92683ad2 DH |
721 | break; |
722 | } | |
723 | } | |
724 | } | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
20263082 | 729 | static int manager_connect_console(Manager *m) { |
cc377381 | 730 | int r; |
20263082 LP |
731 | |
732 | assert(m); | |
733 | assert(m->console_active_fd < 0); | |
734 | ||
74afee9c LP |
735 | /* On certain architectures (S390 and Xen, and containers), |
736 | /dev/tty0 does not exist, so don't fail if we can't open | |
737 | it. */ | |
cc377381 | 738 | if (access("/dev/tty0", F_OK) < 0) |
74afee9c | 739 | return 0; |
74afee9c | 740 | |
20263082 LP |
741 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); |
742 | if (m->console_active_fd < 0) { | |
cdc564d2 MS |
743 | |
744 | /* On some systems the device node /dev/tty0 may exist | |
745 | * even though /sys/class/tty/tty0 does not. */ | |
746 | if (errno == ENOENT) | |
747 | return 0; | |
748 | ||
56f64d95 | 749 | log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); |
20263082 LP |
750 | return -errno; |
751 | } | |
752 | ||
151b9b96 | 753 | r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); |
cc377381 LP |
754 | if (r < 0) { |
755 | log_error("Failed to watch foreground console"); | |
756 | return r; | |
757 | } | |
20263082 | 758 | |
92683ad2 DH |
759 | /* |
760 | * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used | |
761 | * as VT-acquire signal. We ignore any acquire-events (yes, we still | |
762 | * have to provide a valid signal-number for it!) and acknowledge all | |
763 | * release events immediately. | |
764 | */ | |
765 | ||
766 | if (SIGRTMIN + 1 > SIGRTMAX) { | |
767 | log_error("Not enough real-time signals available: %u-%u", SIGRTMIN, SIGRTMAX); | |
768 | return -EINVAL; | |
769 | } | |
770 | ||
72c0a2c2 LP |
771 | assert_se(ignore_signals(SIGRTMIN + 1, -1) >= 0); |
772 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0); | |
92683ad2 DH |
773 | |
774 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); | |
775 | if (r < 0) | |
776 | return r; | |
777 | ||
20263082 LP |
778 | return 0; |
779 | } | |
780 | ||
781 | static int manager_connect_udev(Manager *m) { | |
14c3baca | 782 | int r; |
20263082 LP |
783 | |
784 | assert(m); | |
30ed21ce | 785 | assert(!m->udev_seat_monitor); |
718d006a | 786 | assert(!m->udev_device_monitor); |
30ed21ce | 787 | assert(!m->udev_vcsa_monitor); |
069cfc85 | 788 | assert(!m->udev_button_monitor); |
20263082 | 789 | |
30ed21ce LP |
790 | m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
791 | if (!m->udev_seat_monitor) | |
20263082 LP |
792 | return -ENOMEM; |
793 | ||
2d96536d | 794 | r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "master-of-seat"); |
14c3baca LP |
795 | if (r < 0) |
796 | return r; | |
20263082 | 797 | |
30ed21ce | 798 | r = udev_monitor_enable_receiving(m->udev_seat_monitor); |
14c3baca LP |
799 | if (r < 0) |
800 | return r; | |
20263082 | 801 | |
151b9b96 | 802 | 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); |
cc377381 LP |
803 | if (r < 0) |
804 | return r; | |
069cfc85 | 805 | |
718d006a DH |
806 | m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
807 | if (!m->udev_device_monitor) | |
808 | return -ENOMEM; | |
809 | ||
810 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "input", NULL); | |
811 | if (r < 0) | |
812 | return r; | |
813 | ||
814 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "graphics", NULL); | |
815 | if (r < 0) | |
816 | return r; | |
817 | ||
818 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "drm", NULL); | |
819 | if (r < 0) | |
820 | return r; | |
821 | ||
822 | r = udev_monitor_enable_receiving(m->udev_device_monitor); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
151b9b96 | 826 | 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); |
cc377381 LP |
827 | if (r < 0) |
828 | return r; | |
718d006a | 829 | |
6de0e0e5 | 830 | /* Don't watch keys if nobody cares */ |
beaafb2e | 831 | if (m->handle_power_key != HANDLE_IGNORE || |
8e7fd6ad LP |
832 | m->handle_suspend_key != HANDLE_IGNORE || |
833 | m->handle_hibernate_key != HANDLE_IGNORE || | |
3c56cab4 BW |
834 | m->handle_lid_switch != HANDLE_IGNORE || |
835 | m->handle_lid_switch_docked != HANDLE_IGNORE) { | |
069cfc85 | 836 | |
6de0e0e5 LP |
837 | m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
838 | if (!m->udev_button_monitor) | |
839 | return -ENOMEM; | |
069cfc85 | 840 | |
6de0e0e5 LP |
841 | r = udev_monitor_filter_add_match_tag(m->udev_button_monitor, "power-switch"); |
842 | if (r < 0) | |
843 | return r; | |
069cfc85 | 844 | |
6de0e0e5 LP |
845 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_button_monitor, "input", NULL); |
846 | if (r < 0) | |
847 | return r; | |
069cfc85 | 848 | |
6de0e0e5 LP |
849 | r = udev_monitor_enable_receiving(m->udev_button_monitor); |
850 | if (r < 0) | |
851 | return r; | |
069cfc85 | 852 | |
151b9b96 | 853 | 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); |
cc377381 LP |
854 | if (r < 0) |
855 | return r; | |
6de0e0e5 | 856 | } |
069cfc85 | 857 | |
976c088a | 858 | /* Don't bother watching VCSA devices, if nobody cares */ |
6de0e0e5 | 859 | if (m->n_autovts > 0 && m->console_active_fd >= 0) { |
30ed21ce | 860 | |
6de0e0e5 LP |
861 | m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
862 | if (!m->udev_vcsa_monitor) | |
863 | return -ENOMEM; | |
30ed21ce | 864 | |
6de0e0e5 LP |
865 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL); |
866 | if (r < 0) | |
867 | return r; | |
30ed21ce | 868 | |
6de0e0e5 LP |
869 | r = udev_monitor_enable_receiving(m->udev_vcsa_monitor); |
870 | if (r < 0) | |
871 | return r; | |
30ed21ce | 872 | |
151b9b96 | 873 | 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); |
cc377381 LP |
874 | if (r < 0) |
875 | return r; | |
6de0e0e5 | 876 | } |
20263082 LP |
877 | |
878 | return 0; | |
879 | } | |
880 | ||
905f0a39 | 881 | static void manager_gc(Manager *m, bool drop_not_started) { |
14c3baca LP |
882 | Seat *seat; |
883 | Session *session; | |
884 | User *user; | |
885 | ||
886 | assert(m); | |
887 | ||
888 | while ((seat = m->seat_gc_queue)) { | |
71fda00f | 889 | LIST_REMOVE(gc_queue, m->seat_gc_queue, seat); |
14c3baca LP |
890 | seat->in_gc_queue = false; |
891 | ||
cc377381 | 892 | if (!seat_check_gc(seat, drop_not_started)) { |
9bb69af4 | 893 | seat_stop(seat, false); |
14c3baca LP |
894 | seat_free(seat); |
895 | } | |
896 | } | |
897 | ||
898 | while ((session = m->session_gc_queue)) { | |
71fda00f | 899 | LIST_REMOVE(gc_queue, m->session_gc_queue, session); |
14c3baca LP |
900 | session->in_gc_queue = false; |
901 | ||
5f41d1f1 LP |
902 | /* First, if we are not closing yet, initiate stopping */ |
903 | if (!session_check_gc(session, drop_not_started) && | |
904 | session_get_state(session) != SESSION_CLOSING) | |
9bb69af4 | 905 | session_stop(session, false); |
5f41d1f1 | 906 | |
491ac9f2 LP |
907 | /* Normally, this should make the session referenced |
908 | * again, if it doesn't then let's get rid of it | |
5f41d1f1 LP |
909 | * immediately */ |
910 | if (!session_check_gc(session, drop_not_started)) { | |
405e0255 | 911 | session_finalize(session); |
14c3baca LP |
912 | session_free(session); |
913 | } | |
914 | } | |
915 | ||
916 | while ((user = m->user_gc_queue)) { | |
71fda00f | 917 | LIST_REMOVE(gc_queue, m->user_gc_queue, user); |
14c3baca LP |
918 | user->in_gc_queue = false; |
919 | ||
b58b227a DH |
920 | /* First step: queue stop jobs */ |
921 | if (!user_check_gc(user, drop_not_started)) | |
9bb69af4 | 922 | user_stop(user, false); |
5f41d1f1 | 923 | |
b58b227a | 924 | /* Second step: finalize user */ |
5f41d1f1 | 925 | if (!user_check_gc(user, drop_not_started)) { |
405e0255 | 926 | user_finalize(user); |
14c3baca LP |
927 | user_free(user); |
928 | } | |
929 | } | |
930 | } | |
931 | ||
cc377381 LP |
932 | static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { |
933 | Manager *m = userdata; | |
23406ce5 | 934 | struct dual_timestamp since; |
cc377381 | 935 | usec_t n, elapse; |
23406ce5 | 936 | int r; |
23406ce5 LP |
937 | |
938 | assert(m); | |
939 | ||
940 | if (m->idle_action == HANDLE_IGNORE || | |
cc377381 LP |
941 | m->idle_action_usec <= 0) |
942 | return 0; | |
23406ce5 | 943 | |
23406ce5 LP |
944 | n = now(CLOCK_MONOTONIC); |
945 | ||
946 | r = manager_get_idle_hint(m, &since); | |
947 | if (r <= 0) | |
39ccc87c | 948 | /* Not idle. Let's check if after a timeout it might be idle then. */ |
cc377381 | 949 | elapse = n + m->idle_action_usec; |
23406ce5 LP |
950 | else { |
951 | /* Idle! Let's see if it's time to do something, or if | |
952 | * we shall sleep for longer. */ | |
953 | ||
954 | if (n >= since.monotonic + m->idle_action_usec && | |
955 | (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) { | |
956 | log_info("System idle. Taking action."); | |
957 | ||
958 | manager_handle_action(m, 0, m->idle_action, false, false); | |
959 | m->idle_action_not_before_usec = n; | |
960 | } | |
961 | ||
cc377381 | 962 | elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; |
23406ce5 LP |
963 | } |
964 | ||
cc377381 | 965 | if (!m->idle_action_event_source) { |
23406ce5 | 966 | |
6a0f1f6d LP |
967 | r = sd_event_add_time( |
968 | m->event, | |
969 | &m->idle_action_event_source, | |
970 | CLOCK_MONOTONIC, | |
971 | elapse, USEC_PER_SEC*30, | |
972 | manager_dispatch_idle_action, m); | |
f647962d MS |
973 | if (r < 0) |
974 | return log_error_errno(r, "Failed to add idle event source: %m"); | |
23406ce5 | 975 | |
718db961 | 976 | r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); |
f647962d MS |
977 | if (r < 0) |
978 | return log_error_errno(r, "Failed to set idle event source priority: %m"); | |
cc377381 LP |
979 | } else { |
980 | r = sd_event_source_set_time(m->idle_action_event_source, elapse); | |
f647962d MS |
981 | if (r < 0) |
982 | return log_error_errno(r, "Failed to set idle event timer: %m"); | |
23406ce5 | 983 | |
cc377381 | 984 | r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); |
f647962d MS |
985 | if (r < 0) |
986 | return log_error_errno(r, "Failed to enable idle event timer: %m"); | |
23406ce5 LP |
987 | } |
988 | ||
989 | return 0; | |
23406ce5 | 990 | } |
cc377381 | 991 | |
905f0a39 | 992 | static int manager_startup(Manager *m) { |
20263082 | 993 | int r; |
14c3baca LP |
994 | Seat *seat; |
995 | Session *session; | |
996 | User *user; | |
ed4ba7e4 | 997 | Button *button; |
f8e2fb7b | 998 | Inhibitor *inhibitor; |
14c3baca | 999 | Iterator i; |
20263082 LP |
1000 | |
1001 | assert(m); | |
20263082 | 1002 | |
976c088a LP |
1003 | /* Connect to console */ |
1004 | r = manager_connect_console(m); | |
20263082 LP |
1005 | if (r < 0) |
1006 | return r; | |
1007 | ||
976c088a LP |
1008 | /* Connect to udev */ |
1009 | r = manager_connect_udev(m); | |
f647962d MS |
1010 | if (r < 0) |
1011 | return log_error_errno(r, "Failed to create udev watchers: %m"); | |
20263082 LP |
1012 | |
1013 | /* Connect to the bus */ | |
1014 | r = manager_connect_bus(m); | |
1015 | if (r < 0) | |
1016 | return r; | |
1017 | ||
14c3baca | 1018 | /* Instantiate magic seat 0 */ |
92432fcc | 1019 | r = manager_add_seat(m, "seat0", &m->seat0); |
f647962d MS |
1020 | if (r < 0) |
1021 | return log_error_errno(r, "Failed to add seat0: %m"); | |
14c3baca | 1022 | |
9d10cbee | 1023 | r = manager_set_lid_switch_ignore(m, 0 + m->holdoff_timeout_usec); |
f9cd6be1 | 1024 | if (r < 0) |
da927ba9 | 1025 | log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); |
f9cd6be1 | 1026 | |
20263082 | 1027 | /* Deserialize state */ |
042f5988 ZJS |
1028 | r = manager_enumerate_devices(m); |
1029 | if (r < 0) | |
da927ba9 | 1030 | log_warning_errno(r, "Device enumeration failed: %m"); |
042f5988 ZJS |
1031 | |
1032 | r = manager_enumerate_seats(m); | |
1033 | if (r < 0) | |
da927ba9 | 1034 | log_warning_errno(r, "Seat enumeration failed: %m"); |
042f5988 ZJS |
1035 | |
1036 | r = manager_enumerate_users(m); | |
1037 | if (r < 0) | |
da927ba9 | 1038 | log_warning_errno(r, "User enumeration failed: %m"); |
042f5988 ZJS |
1039 | |
1040 | r = manager_enumerate_sessions(m); | |
1041 | if (r < 0) | |
da927ba9 | 1042 | log_warning_errno(r, "Session enumeration failed: %m"); |
042f5988 ZJS |
1043 | |
1044 | r = manager_enumerate_inhibitors(m); | |
1045 | if (r < 0) | |
da927ba9 | 1046 | log_warning_errno(r, "Inhibitor enumeration failed: %m"); |
042f5988 ZJS |
1047 | |
1048 | r = manager_enumerate_buttons(m); | |
1049 | if (r < 0) | |
da927ba9 | 1050 | log_warning_errno(r, "Button enumeration failed: %m"); |
20263082 | 1051 | |
4a4b033f LP |
1052 | /* Remove stale objects before we start them */ |
1053 | manager_gc(m, false); | |
1054 | ||
98a77df5 LP |
1055 | /* Reserve the special reserved VT */ |
1056 | manager_reserve_vt(m); | |
1057 | ||
14c3baca LP |
1058 | /* And start everything */ |
1059 | HASHMAP_FOREACH(seat, m->seats, i) | |
1060 | seat_start(seat); | |
1061 | ||
1062 | HASHMAP_FOREACH(user, m->users, i) | |
1063 | user_start(user); | |
1064 | ||
1065 | HASHMAP_FOREACH(session, m->sessions, i) | |
1066 | session_start(session); | |
20263082 | 1067 | |
f8e2fb7b LP |
1068 | HASHMAP_FOREACH(inhibitor, m->inhibitors, i) |
1069 | inhibitor_start(inhibitor); | |
1070 | ||
ed4ba7e4 | 1071 | HASHMAP_FOREACH(button, m->buttons, i) |
2d62c530 | 1072 | button_check_switches(button); |
ed4ba7e4 | 1073 | |
cc377381 | 1074 | manager_dispatch_idle_action(NULL, 0, m); |
23406ce5 | 1075 | |
20263082 LP |
1076 | return 0; |
1077 | } | |
1078 | ||
905f0a39 | 1079 | static int manager_run(Manager *m) { |
cc377381 LP |
1080 | int r; |
1081 | ||
20263082 LP |
1082 | assert(m); |
1083 | ||
1084 | for (;;) { | |
cc377381 LP |
1085 | r = sd_event_get_state(m->event); |
1086 | if (r < 0) | |
1087 | return r; | |
1088 | if (r == SD_EVENT_FINISHED) | |
1089 | return 0; | |
20263082 | 1090 | |
4a4b033f | 1091 | manager_gc(m, true); |
14c3baca | 1092 | |
418b22b8 DM |
1093 | r = manager_dispatch_delayed(m, false); |
1094 | if (r < 0) | |
1095 | return r; | |
1096 | if (r > 0) | |
1097 | continue; | |
1098 | ||
c0f32805 | 1099 | r = sd_event_run(m->event, (uint64_t) -1); |
cc377381 LP |
1100 | if (r < 0) |
1101 | return r; | |
20263082 | 1102 | } |
20263082 LP |
1103 | } |
1104 | ||
193197e8 | 1105 | static int manager_parse_config_file(Manager *m) { |
193197e8 LP |
1106 | assert(m); |
1107 | ||
e8461023 JT |
1108 | return config_parse_many("/etc/systemd/logind.conf", |
1109 | CONF_DIRS_NULSTR("systemd/logind.conf"), | |
1110 | "Login\0", | |
1111 | config_item_perf_lookup, logind_gperf_lookup, | |
1112 | false, m); | |
193197e8 LP |
1113 | } |
1114 | ||
20263082 LP |
1115 | int main(int argc, char *argv[]) { |
1116 | Manager *m = NULL; | |
5eda94dd | 1117 | int r; |
20263082 LP |
1118 | |
1119 | log_set_target(LOG_TARGET_AUTO); | |
3eff4208 | 1120 | log_set_facility(LOG_AUTH); |
20263082 LP |
1121 | log_parse_environment(); |
1122 | log_open(); | |
1123 | ||
4c12626c LP |
1124 | umask(0022); |
1125 | ||
20263082 LP |
1126 | if (argc != 1) { |
1127 | log_error("This program takes no arguments."); | |
1128 | r = -EINVAL; | |
1129 | goto finish; | |
1130 | } | |
1131 | ||
bb27ff66 LP |
1132 | /* Always create the directories people can create inotify |
1133 | * watches in. Note that some applications might check for the | |
ab06eef8 | 1134 | * existence of /run/systemd/seats/ to determine whether |
bb27ff66 LP |
1135 | * logind is available, so please always make sure this check |
1136 | * stays in. */ | |
1137 | mkdir_label("/run/systemd/seats", 0755); | |
1138 | mkdir_label("/run/systemd/users", 0755); | |
1139 | mkdir_label("/run/systemd/sessions", 0755); | |
1140 | ||
20263082 LP |
1141 | m = manager_new(); |
1142 | if (!m) { | |
0d0f0c50 | 1143 | r = log_oom(); |
20263082 LP |
1144 | goto finish; |
1145 | } | |
1146 | ||
193197e8 LP |
1147 | manager_parse_config_file(m); |
1148 | ||
20263082 LP |
1149 | r = manager_startup(m); |
1150 | if (r < 0) { | |
da927ba9 | 1151 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
20263082 LP |
1152 | goto finish; |
1153 | } | |
1154 | ||
de0671ee | 1155 | log_debug("systemd-logind running as pid "PID_FMT, getpid()); |
e6960940 LP |
1156 | |
1157 | sd_notify(false, | |
1158 | "READY=1\n" | |
1159 | "STATUS=Processing requests..."); | |
1160 | ||
20263082 LP |
1161 | r = manager_run(m); |
1162 | ||
de0671ee | 1163 | log_debug("systemd-logind stopped as pid "PID_FMT, getpid()); |
e6960940 | 1164 | |
20263082 | 1165 | finish: |
e6960940 | 1166 | sd_notify(false, |
af4ec430 | 1167 | "STOPPING=1\n" |
e6960940 LP |
1168 | "STATUS=Shutting down..."); |
1169 | ||
3e044c49 | 1170 | manager_free(m); |
20263082 LP |
1171 | |
1172 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1173 | } |