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Commit | Line | Data |
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20263082 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
20263082 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
20263082 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
20263082 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
20 | #include <errno.h> | |
20263082 LP |
21 | #include <fcntl.h> |
22 | #include <string.h> | |
23 | #include <unistd.h> | |
20263082 | 24 | |
b4bbcaa9 | 25 | #include "libudev.h" |
cc377381 | 26 | #include "sd-daemon.h" |
07630cea | 27 | |
b5efdb8a | 28 | #include "alloc-util.h" |
cc377381 | 29 | #include "bus-error.h" |
07630cea LP |
30 | #include "bus-util.h" |
31 | #include "conf-parser.h" | |
a0f29c76 | 32 | #include "def.h" |
a0956174 | 33 | #include "dirent-util.h" |
3ffd4af2 | 34 | #include "fd-util.h" |
f97b34a6 | 35 | #include "format-util.h" |
3ffd4af2 | 36 | #include "logind.h" |
4b51966c | 37 | #include "selinux-util.h" |
24882e06 | 38 | #include "signal-util.h" |
07630cea LP |
39 | #include "strv.h" |
40 | #include "udev-util.h" | |
f5058264 | 41 | #include "cgroup-util.h" |
20263082 | 42 | |
905f0a39 DM |
43 | static void manager_free(Manager *m); |
44 | ||
a2ed7077 | 45 | static void manager_reset_config(Manager *m) { |
20263082 | 46 | m->n_autovts = 6; |
98a77df5 | 47 | m->reserve_vt = 6; |
66cdd0f2 | 48 | m->remove_ipc = true; |
eecd1362 | 49 | m->inhibit_delay_max = 5 * USEC_PER_SEC; |
beaafb2e | 50 | m->handle_power_key = HANDLE_POWEROFF; |
8e7fd6ad LP |
51 | m->handle_suspend_key = HANDLE_SUSPEND; |
52 | m->handle_hibernate_key = HANDLE_HIBERNATE; | |
beaafb2e | 53 | m->handle_lid_switch = HANDLE_SUSPEND; |
3c56cab4 | 54 | m->handle_lid_switch_docked = HANDLE_IGNORE; |
a2ed7077 ZJS |
55 | m->power_key_ignore_inhibited = false; |
56 | m->suspend_key_ignore_inhibited = false; | |
57 | m->hibernate_key_ignore_inhibited = false; | |
beaafb2e | 58 | m->lid_switch_ignore_inhibited = true; |
a2ed7077 | 59 | |
9d10cbee | 60 | m->holdoff_timeout_usec = 30 * USEC_PER_SEC; |
20263082 | 61 | |
23406ce5 LP |
62 | m->idle_action_usec = 30 * USEC_PER_MINUTE; |
63 | m->idle_action = HANDLE_IGNORE; | |
23406ce5 | 64 | |
d8cf2ac7 | 65 | m->runtime_dir_size = physical_memory_scale(10U, 100U); /* 10% */ |
f5058264 | 66 | m->user_tasks_max = system_tasks_max_scale(DEFAULT_USER_TASKS_MAX_PERCENTAGE, 100U); /* 33% */ |
64b56896 LP |
67 | m->sessions_max = 8192; |
68 | m->inhibitors_max = 8192; | |
1c231f56 | 69 | |
95365a57 | 70 | m->kill_user_processes = KILL_USER_PROCESSES; |
a2ed7077 ZJS |
71 | |
72 | m->kill_only_users = strv_free(m->kill_only_users); | |
73 | m->kill_exclude_users = strv_free(m->kill_exclude_users); | |
74 | } | |
75 | ||
76 | static Manager *manager_new(void) { | |
77 | Manager *m; | |
78 | int r; | |
79 | ||
80 | m = new0(Manager, 1); | |
81 | if (!m) | |
82 | return NULL; | |
83 | ||
84 | m->console_active_fd = -1; | |
85 | m->reserve_vt_fd = -1; | |
86 | ||
87 | m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); | |
88 | ||
d5099efc MS |
89 | m->devices = hashmap_new(&string_hash_ops); |
90 | m->seats = hashmap_new(&string_hash_ops); | |
91 | m->sessions = hashmap_new(&string_hash_ops); | |
92 | m->users = hashmap_new(NULL); | |
93 | m->inhibitors = hashmap_new(&string_hash_ops); | |
94 | m->buttons = hashmap_new(&string_hash_ops); | |
f8e2fb7b | 95 | |
d5099efc MS |
96 | m->user_units = hashmap_new(&string_hash_ops); |
97 | m->session_units = hashmap_new(&string_hash_ops); | |
8c8c4351 | 98 | |
3cde9e8f | 99 | if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->user_units || !m->session_units) |
ed4ba7e4 | 100 | goto fail; |
25d93491 | 101 | |
20263082 | 102 | m->udev = udev_new(); |
ed4ba7e4 LP |
103 | if (!m->udev) |
104 | goto fail; | |
20263082 | 105 | |
afc6adb5 | 106 | r = sd_event_default(&m->event); |
ed4ba7e4 LP |
107 | if (r < 0) |
108 | goto fail; | |
cc377381 | 109 | |
cde93897 LP |
110 | sd_event_set_watchdog(m->event, true); |
111 | ||
a2ed7077 ZJS |
112 | manager_reset_config(m); |
113 | ||
20263082 | 114 | return m; |
ed4ba7e4 LP |
115 | |
116 | fail: | |
117 | manager_free(m); | |
118 | return NULL; | |
20263082 LP |
119 | } |
120 | ||
905f0a39 | 121 | static void manager_free(Manager *m) { |
20263082 LP |
122 | Session *session; |
123 | User *u; | |
124 | Device *d; | |
125 | Seat *s; | |
f8e2fb7b | 126 | Inhibitor *i; |
069cfc85 | 127 | Button *b; |
20263082 | 128 | |
84a4e660 LP |
129 | if (!m) |
130 | return; | |
20263082 LP |
131 | |
132 | while ((session = hashmap_first(m->sessions))) | |
133 | session_free(session); | |
134 | ||
135 | while ((u = hashmap_first(m->users))) | |
136 | user_free(u); | |
137 | ||
138 | while ((d = hashmap_first(m->devices))) | |
139 | device_free(d); | |
140 | ||
141 | while ((s = hashmap_first(m->seats))) | |
142 | seat_free(s); | |
143 | ||
f8e2fb7b LP |
144 | while ((i = hashmap_first(m->inhibitors))) |
145 | inhibitor_free(i); | |
146 | ||
069cfc85 LP |
147 | while ((b = hashmap_first(m->buttons))) |
148 | button_free(b); | |
149 | ||
20263082 LP |
150 | hashmap_free(m->devices); |
151 | hashmap_free(m->seats); | |
f8e2fb7b LP |
152 | hashmap_free(m->sessions); |
153 | hashmap_free(m->users); | |
154 | hashmap_free(m->inhibitors); | |
069cfc85 | 155 | hashmap_free(m->buttons); |
f8e2fb7b | 156 | |
fb6becb4 LP |
157 | hashmap_free(m->user_units); |
158 | hashmap_free(m->session_units); | |
8c8c4351 | 159 | |
cc377381 | 160 | sd_event_source_unref(m->idle_action_event_source); |
c0f32805 | 161 | sd_event_source_unref(m->inhibit_timeout_source); |
8aaa023a | 162 | sd_event_source_unref(m->scheduled_shutdown_timeout_source); |
867c37f6 | 163 | sd_event_source_unref(m->nologin_timeout_source); |
e2fa5721 | 164 | sd_event_source_unref(m->wall_message_timeout_source); |
cc377381 LP |
165 | |
166 | sd_event_source_unref(m->console_active_event_source); | |
167 | sd_event_source_unref(m->udev_seat_event_source); | |
168 | sd_event_source_unref(m->udev_device_event_source); | |
169 | sd_event_source_unref(m->udev_vcsa_event_source); | |
170 | sd_event_source_unref(m->udev_button_event_source); | |
f9cd6be1 | 171 | sd_event_source_unref(m->lid_switch_ignore_event_source); |
20263082 | 172 | |
03e334a1 | 173 | safe_close(m->console_active_fd); |
20263082 | 174 | |
3e044c49 ME |
175 | udev_monitor_unref(m->udev_seat_monitor); |
176 | udev_monitor_unref(m->udev_device_monitor); | |
177 | udev_monitor_unref(m->udev_vcsa_monitor); | |
178 | udev_monitor_unref(m->udev_button_monitor); | |
179 | ||
180 | udev_unref(m->udev); | |
20263082 | 181 | |
867c37f6 | 182 | if (m->unlink_nologin) |
a790812c | 183 | (void) unlink("/run/nologin"); |
867c37f6 | 184 | |
36e34057 | 185 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
20263082 | 186 | |
cc377381 LP |
187 | sd_bus_unref(m->bus); |
188 | sd_event_unref(m->event); | |
20263082 | 189 | |
03e334a1 | 190 | safe_close(m->reserve_vt_fd); |
98a77df5 | 191 | |
193197e8 LP |
192 | strv_free(m->kill_only_users); |
193 | strv_free(m->kill_exclude_users); | |
194 | ||
8aaa023a | 195 | free(m->scheduled_shutdown_type); |
e2fa5721 DM |
196 | free(m->scheduled_shutdown_tty); |
197 | free(m->wall_message); | |
af9792ac | 198 | free(m->action_job); |
20263082 LP |
199 | free(m); |
200 | } | |
201 | ||
9588bc32 | 202 | static int manager_enumerate_devices(Manager *m) { |
20263082 | 203 | struct udev_list_entry *item = NULL, *first = NULL; |
bf5332d2 | 204 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
14c3baca | 205 | int r; |
20263082 LP |
206 | |
207 | assert(m); | |
208 | ||
209 | /* Loads devices from udev and creates seats for them as | |
210 | * necessary */ | |
211 | ||
212 | e = udev_enumerate_new(m->udev); | |
bf5332d2 LP |
213 | if (!e) |
214 | return -ENOMEM; | |
20263082 | 215 | |
2d96536d | 216 | r = udev_enumerate_add_match_tag(e, "master-of-seat"); |
14c3baca | 217 | if (r < 0) |
bf5332d2 | 218 | return r; |
20263082 | 219 | |
e1202047 LP |
220 | r = udev_enumerate_add_match_is_initialized(e); |
221 | if (r < 0) | |
222 | return r; | |
223 | ||
14c3baca LP |
224 | r = udev_enumerate_scan_devices(e); |
225 | if (r < 0) | |
bf5332d2 | 226 | return r; |
20263082 LP |
227 | |
228 | first = udev_enumerate_get_list_entry(e); | |
229 | udev_list_entry_foreach(item, first) { | |
bf5332d2 | 230 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
20263082 LP |
231 | int k; |
232 | ||
233 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
bf5332d2 LP |
234 | if (!d) |
235 | return -ENOMEM; | |
20263082 | 236 | |
bf5332d2 | 237 | k = manager_process_seat_device(m, d); |
20263082 LP |
238 | if (k < 0) |
239 | r = k; | |
240 | } | |
241 | ||
20263082 LP |
242 | return r; |
243 | } | |
244 | ||
9588bc32 | 245 | static int manager_enumerate_buttons(Manager *m) { |
bf5332d2 | 246 | _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
069cfc85 | 247 | struct udev_list_entry *item = NULL, *first = NULL; |
069cfc85 LP |
248 | int r; |
249 | ||
250 | assert(m); | |
251 | ||
252 | /* Loads buttons from udev */ | |
253 | ||
beaafb2e | 254 | if (m->handle_power_key == HANDLE_IGNORE && |
8e7fd6ad LP |
255 | m->handle_suspend_key == HANDLE_IGNORE && |
256 | m->handle_hibernate_key == HANDLE_IGNORE && | |
3c56cab4 BW |
257 | m->handle_lid_switch == HANDLE_IGNORE && |
258 | m->handle_lid_switch_docked == HANDLE_IGNORE) | |
6de0e0e5 LP |
259 | return 0; |
260 | ||
069cfc85 | 261 | e = udev_enumerate_new(m->udev); |
bf5332d2 LP |
262 | if (!e) |
263 | return -ENOMEM; | |
069cfc85 LP |
264 | |
265 | r = udev_enumerate_add_match_subsystem(e, "input"); | |
266 | if (r < 0) | |
bf5332d2 | 267 | return r; |
069cfc85 LP |
268 | |
269 | r = udev_enumerate_add_match_tag(e, "power-switch"); | |
270 | if (r < 0) | |
bf5332d2 | 271 | return r; |
069cfc85 | 272 | |
e1202047 LP |
273 | r = udev_enumerate_add_match_is_initialized(e); |
274 | if (r < 0) | |
275 | return r; | |
276 | ||
069cfc85 LP |
277 | r = udev_enumerate_scan_devices(e); |
278 | if (r < 0) | |
bf5332d2 | 279 | return r; |
069cfc85 LP |
280 | |
281 | first = udev_enumerate_get_list_entry(e); | |
282 | udev_list_entry_foreach(item, first) { | |
bf5332d2 | 283 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
069cfc85 LP |
284 | int k; |
285 | ||
286 | d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); | |
bf5332d2 LP |
287 | if (!d) |
288 | return -ENOMEM; | |
069cfc85 | 289 | |
bf5332d2 | 290 | k = manager_process_button_device(m, d); |
069cfc85 LP |
291 | if (k < 0) |
292 | r = k; | |
293 | } | |
294 | ||
069cfc85 LP |
295 | return r; |
296 | } | |
297 | ||
9588bc32 | 298 | static int manager_enumerate_seats(Manager *m) { |
9444b1f2 | 299 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
300 | struct dirent *de; |
301 | int r = 0; | |
302 | ||
303 | assert(m); | |
304 | ||
305 | /* This loads data about seats stored on disk, but does not | |
306 | * actually create any seats. Removes data of seats that no | |
307 | * longer exist. */ | |
308 | ||
309 | d = opendir("/run/systemd/seats"); | |
310 | if (!d) { | |
311 | if (errno == ENOENT) | |
312 | return 0; | |
313 | ||
e1427b13 | 314 | return log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); |
20263082 LP |
315 | } |
316 | ||
9444b1f2 | 317 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 LP |
318 | Seat *s; |
319 | int k; | |
320 | ||
321 | if (!dirent_is_file(de)) | |
322 | continue; | |
323 | ||
324 | s = hashmap_get(m->seats, de->d_name); | |
325 | if (!s) { | |
326 | unlinkat(dirfd(d), de->d_name, 0); | |
327 | continue; | |
328 | } | |
329 | ||
330 | k = seat_load(s); | |
331 | if (k < 0) | |
332 | r = k; | |
333 | } | |
334 | ||
14c3baca LP |
335 | return r; |
336 | } | |
20263082 | 337 | |
14c3baca | 338 | static int manager_enumerate_linger_users(Manager *m) { |
9444b1f2 | 339 | _cleanup_closedir_ DIR *d = NULL; |
14c3baca LP |
340 | struct dirent *de; |
341 | int r = 0; | |
342 | ||
9444b1f2 LP |
343 | assert(m); |
344 | ||
14c3baca LP |
345 | d = opendir("/var/lib/systemd/linger"); |
346 | if (!d) { | |
347 | if (errno == ENOENT) | |
348 | return 0; | |
349 | ||
e1427b13 | 350 | return log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); |
14c3baca LP |
351 | } |
352 | ||
9444b1f2 | 353 | FOREACH_DIRENT(de, d, return -errno) { |
14c3baca LP |
354 | int k; |
355 | ||
356 | if (!dirent_is_file(de)) | |
20263082 LP |
357 | continue; |
358 | ||
14c3baca LP |
359 | k = manager_add_user_by_name(m, de->d_name, NULL); |
360 | if (k < 0) { | |
da927ba9 | 361 | log_notice_errno(k, "Couldn't add lingering user %s: %m", de->d_name); |
14c3baca | 362 | r = k; |
20263082 LP |
363 | } |
364 | } | |
365 | ||
20263082 LP |
366 | return r; |
367 | } | |
368 | ||
9588bc32 | 369 | static int manager_enumerate_users(Manager *m) { |
9444b1f2 | 370 | _cleanup_closedir_ DIR *d = NULL; |
20263082 | 371 | struct dirent *de; |
14c3baca | 372 | int r, k; |
20263082 LP |
373 | |
374 | assert(m); | |
375 | ||
9444b1f2 | 376 | /* Add lingering users */ |
b3629c7d | 377 | r = manager_enumerate_linger_users(m); |
14c3baca | 378 | |
9444b1f2 | 379 | /* Read in user data stored on disk */ |
20263082 LP |
380 | d = opendir("/run/systemd/users"); |
381 | if (!d) { | |
382 | if (errno == ENOENT) | |
383 | return 0; | |
384 | ||
e1427b13 | 385 | return log_error_errno(errno, "Failed to open /run/systemd/users: %m"); |
20263082 LP |
386 | } |
387 | ||
9444b1f2 | 388 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 389 | User *u; |
20263082 LP |
390 | |
391 | if (!dirent_is_file(de)) | |
392 | continue; | |
393 | ||
9444b1f2 | 394 | k = manager_add_user_by_name(m, de->d_name, &u); |
20263082 | 395 | if (k < 0) { |
da927ba9 | 396 | log_error_errno(k, "Failed to add user by file name %s: %m", de->d_name); |
20263082 | 397 | |
9444b1f2 | 398 | r = k; |
20263082 LP |
399 | continue; |
400 | } | |
401 | ||
9444b1f2 LP |
402 | user_add_to_gc_queue(u); |
403 | ||
20263082 LP |
404 | k = user_load(u); |
405 | if (k < 0) | |
406 | r = k; | |
407 | } | |
408 | ||
20263082 LP |
409 | return r; |
410 | } | |
411 | ||
aed24c4c FB |
412 | static int manager_attach_fds(Manager *m) { |
413 | _cleanup_strv_free_ char **fdnames = NULL; | |
414 | int n, i, fd; | |
415 | ||
416 | /* Upon restart, PID1 will send us back all fds of session devices | |
417 | * that we previously opened. Each file descriptor is associated | |
418 | * with a given session. The session ids are passed through FDNAMES. */ | |
419 | ||
420 | n = sd_listen_fds_with_names(true, &fdnames); | |
421 | if (n <= 0) | |
422 | return n; | |
423 | ||
424 | for (i = 0; i < n; i++) { | |
425 | struct stat st; | |
426 | SessionDevice *sd; | |
427 | Session *s; | |
428 | char *id; | |
429 | ||
430 | fd = SD_LISTEN_FDS_START + i; | |
431 | ||
432 | id = startswith(fdnames[i], "session-"); | |
433 | if (!id) | |
434 | continue; | |
435 | ||
436 | s = hashmap_get(m->sessions, id); | |
437 | if (!s) { | |
438 | /* If the session doesn't exist anymore, the associated session | |
439 | * device attached to this fd doesn't either. Let's simply close | |
440 | * this fd. */ | |
441 | log_debug("Failed to attach fd for unknown session: %s", id); | |
442 | close_nointr(fd); | |
443 | continue; | |
444 | } | |
445 | ||
446 | if (fstat(fd, &st) < 0) { | |
447 | /* The device is allowed to go away at a random point, in which | |
448 | * case fstat failing is expected. */ | |
449 | log_debug_errno(errno, "Failed to stat device fd for session %s: %m", id); | |
450 | close_nointr(fd); | |
451 | continue; | |
452 | } | |
453 | ||
454 | sd = hashmap_get(s->devices, &st.st_rdev); | |
455 | if (!sd) { | |
456 | /* Weird we got an fd for a session device which wasn't | |
457 | * recorded in the session state file... */ | |
458 | log_warning("Got fd for missing session device [%u:%u] in session %s", | |
459 | major(st.st_rdev), minor(st.st_rdev), s->id); | |
460 | close_nointr(fd); | |
461 | continue; | |
462 | } | |
463 | ||
464 | log_debug("Attaching fd to session device [%u:%u] for session %s", | |
465 | major(st.st_rdev), minor(st.st_rdev), s->id); | |
466 | ||
467 | session_device_attach_fd(sd, fd, s->was_active); | |
468 | } | |
469 | ||
470 | return 0; | |
471 | } | |
472 | ||
9588bc32 | 473 | static int manager_enumerate_sessions(Manager *m) { |
9444b1f2 LP |
474 | _cleanup_closedir_ DIR *d = NULL; |
475 | struct dirent *de; | |
aed24c4c | 476 | int r = 0, k; |
20263082 | 477 | |
9444b1f2 LP |
478 | assert(m); |
479 | ||
480 | /* Read in session data stored on disk */ | |
481 | d = opendir("/run/systemd/sessions"); | |
482 | if (!d) { | |
483 | if (errno == ENOENT) | |
484 | return 0; | |
485 | ||
e1427b13 | 486 | return log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); |
9444b1f2 LP |
487 | } |
488 | ||
489 | FOREACH_DIRENT(de, d, return -errno) { | |
490 | struct Session *s; | |
20263082 | 491 | |
9444b1f2 | 492 | if (!dirent_is_file(de)) |
14c3baca LP |
493 | continue; |
494 | ||
4b549144 ZJS |
495 | if (!session_id_valid(de->d_name)) { |
496 | log_warning("Invalid session file name '%s', ignoring.", de->d_name); | |
497 | r = -EINVAL; | |
498 | continue; | |
499 | } | |
500 | ||
9444b1f2 | 501 | k = manager_add_session(m, de->d_name, &s); |
20263082 | 502 | if (k < 0) { |
da927ba9 | 503 | log_error_errno(k, "Failed to add session by file name %s: %m", de->d_name); |
20263082 LP |
504 | r = k; |
505 | continue; | |
506 | } | |
507 | ||
9444b1f2 | 508 | session_add_to_gc_queue(s); |
20263082 | 509 | |
9444b1f2 | 510 | k = session_load(s); |
20263082 LP |
511 | if (k < 0) |
512 | r = k; | |
513 | } | |
514 | ||
aed24c4c FB |
515 | /* We might be restarted and PID1 could have sent us back the |
516 | * session device fds we previously saved. */ | |
517 | k = manager_attach_fds(m); | |
518 | if (k < 0) | |
519 | log_warning_errno(k, "Failed to reattach session device fds: %m"); | |
520 | ||
20263082 LP |
521 | return r; |
522 | } | |
523 | ||
9588bc32 | 524 | static int manager_enumerate_inhibitors(Manager *m) { |
9444b1f2 | 525 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
526 | struct dirent *de; |
527 | int r = 0; | |
528 | ||
529 | assert(m); | |
530 | ||
9444b1f2 | 531 | d = opendir("/run/systemd/inhibit"); |
20263082 LP |
532 | if (!d) { |
533 | if (errno == ENOENT) | |
534 | return 0; | |
535 | ||
e1427b13 | 536 | return log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); |
20263082 LP |
537 | } |
538 | ||
9444b1f2 | 539 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 540 | int k; |
9444b1f2 | 541 | Inhibitor *i; |
20263082 LP |
542 | |
543 | if (!dirent_is_file(de)) | |
544 | continue; | |
545 | ||
9444b1f2 LP |
546 | k = manager_add_inhibitor(m, de->d_name, &i); |
547 | if (k < 0) { | |
da927ba9 | 548 | log_notice_errno(k, "Couldn't add inhibitor %s: %m", de->d_name); |
9444b1f2 | 549 | r = k; |
20263082 LP |
550 | continue; |
551 | } | |
552 | ||
9444b1f2 | 553 | k = inhibitor_load(i); |
20263082 LP |
554 | if (k < 0) |
555 | r = k; | |
556 | } | |
557 | ||
20263082 LP |
558 | return r; |
559 | } | |
560 | ||
cc377381 | 561 | static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 562 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 563 | Manager *m = userdata; |
20263082 LP |
564 | |
565 | assert(m); | |
566 | ||
30ed21ce | 567 | d = udev_monitor_receive_device(m->udev_seat_monitor); |
20263082 LP |
568 | if (!d) |
569 | return -ENOMEM; | |
570 | ||
7b77ed8c LP |
571 | manager_process_seat_device(m, d); |
572 | return 0; | |
30ed21ce LP |
573 | } |
574 | ||
cc377381 | 575 | static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 576 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 577 | Manager *m = userdata; |
718d006a DH |
578 | |
579 | assert(m); | |
580 | ||
581 | d = udev_monitor_receive_device(m->udev_device_monitor); | |
582 | if (!d) | |
583 | return -ENOMEM; | |
584 | ||
7b77ed8c LP |
585 | manager_process_seat_device(m, d); |
586 | return 0; | |
718d006a DH |
587 | } |
588 | ||
cc377381 | 589 | static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 590 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 591 | Manager *m = userdata; |
30ed21ce LP |
592 | const char *name; |
593 | ||
594 | assert(m); | |
595 | ||
596 | d = udev_monitor_receive_device(m->udev_vcsa_monitor); | |
597 | if (!d) | |
598 | return -ENOMEM; | |
599 | ||
600 | name = udev_device_get_sysname(d); | |
601 | ||
602 | /* Whenever a VCSA device is removed try to reallocate our | |
603 | * VTs, to make sure our auto VTs never go away. */ | |
604 | ||
605 | if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove")) | |
7b77ed8c | 606 | seat_preallocate_vts(m->seat0); |
30ed21ce | 607 | |
7b77ed8c | 608 | return 0; |
20263082 LP |
609 | } |
610 | ||
cc377381 | 611 | static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
7b77ed8c | 612 | _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
cc377381 | 613 | Manager *m = userdata; |
069cfc85 LP |
614 | |
615 | assert(m); | |
616 | ||
617 | d = udev_monitor_receive_device(m->udev_button_monitor); | |
618 | if (!d) | |
619 | return -ENOMEM; | |
620 | ||
7b77ed8c LP |
621 | manager_process_button_device(m, d); |
622 | return 0; | |
069cfc85 LP |
623 | } |
624 | ||
cc377381 LP |
625 | static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
626 | Manager *m = userdata; | |
627 | ||
20263082 | 628 | assert(m); |
92432fcc | 629 | assert(m->seat0); |
cc377381 | 630 | assert(m->console_active_fd == fd); |
20263082 | 631 | |
92432fcc | 632 | seat_read_active_vt(m->seat0); |
20263082 LP |
633 | return 0; |
634 | } | |
635 | ||
98a77df5 LP |
636 | static int manager_reserve_vt(Manager *m) { |
637 | _cleanup_free_ char *p = NULL; | |
638 | ||
639 | assert(m); | |
640 | ||
641 | if (m->reserve_vt <= 0) | |
642 | return 0; | |
643 | ||
644 | if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0) | |
645 | return log_oom(); | |
646 | ||
647 | m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
648 | if (m->reserve_vt_fd < 0) { | |
d4d882e5 LP |
649 | |
650 | /* Don't complain on VT-less systems */ | |
651 | if (errno != ENOENT) | |
56f64d95 | 652 | log_warning_errno(errno, "Failed to pin reserved VT: %m"); |
98a77df5 LP |
653 | return -errno; |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
cc377381 | 659 | static int manager_connect_bus(Manager *m) { |
4afd3348 | 660 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
cc377381 | 661 | int r; |
31b79c2b | 662 | |
cc377381 LP |
663 | assert(m); |
664 | assert(!m->bus); | |
31b79c2b | 665 | |
76b54375 | 666 | r = sd_bus_default_system(&m->bus); |
f647962d MS |
667 | if (r < 0) |
668 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
31b79c2b | 669 | |
19befb2d | 670 | r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m); |
f647962d MS |
671 | if (r < 0) |
672 | return log_error_errno(r, "Failed to add manager object vtable: %m"); | |
f8e2fb7b | 673 | |
19befb2d | 674 | 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 |
675 | if (r < 0) |
676 | return log_error_errno(r, "Failed to add seat object vtable: %m"); | |
069cfc85 | 677 | |
19befb2d | 678 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/seat", seat_node_enumerator, m); |
f647962d MS |
679 | if (r < 0) |
680 | return log_error_errno(r, "Failed to add seat enumerator: %m"); | |
20263082 | 681 | |
19befb2d | 682 | 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 |
683 | if (r < 0) |
684 | return log_error_errno(r, "Failed to add session object vtable: %m"); | |
20263082 | 685 | |
19befb2d | 686 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/session", session_node_enumerator, m); |
f647962d MS |
687 | if (r < 0) |
688 | return log_error_errno(r, "Failed to add session enumerator: %m"); | |
20263082 | 689 | |
19befb2d | 690 | 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 |
691 | if (r < 0) |
692 | return log_error_errno(r, "Failed to add user object vtable: %m"); | |
20263082 | 693 | |
19befb2d | 694 | r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/user", user_node_enumerator, m); |
f647962d MS |
695 | if (r < 0) |
696 | return log_error_errno(r, "Failed to add user enumerator: %m"); | |
20263082 | 697 | |
cc377381 | 698 | r = sd_bus_add_match(m->bus, |
19befb2d | 699 | NULL, |
cc377381 LP |
700 | "type='signal'," |
701 | "sender='org.freedesktop.systemd1'," | |
702 | "interface='org.freedesktop.systemd1.Manager'," | |
703 | "member='JobRemoved'," | |
704 | "path='/org/freedesktop/systemd1'", | |
705 | match_job_removed, m); | |
f647962d MS |
706 | if (r < 0) |
707 | return log_error_errno(r, "Failed to add match for JobRemoved: %m"); | |
943aca8e | 708 | |
cc377381 | 709 | r = sd_bus_add_match(m->bus, |
19befb2d | 710 | NULL, |
cc377381 LP |
711 | "type='signal'," |
712 | "sender='org.freedesktop.systemd1'," | |
713 | "interface='org.freedesktop.systemd1.Manager'," | |
714 | "member='UnitRemoved'," | |
715 | "path='/org/freedesktop/systemd1'", | |
716 | match_unit_removed, m); | |
f647962d MS |
717 | if (r < 0) |
718 | return log_error_errno(r, "Failed to add match for UnitRemoved: %m"); | |
fb6becb4 | 719 | |
cc377381 | 720 | r = sd_bus_add_match(m->bus, |
19befb2d | 721 | NULL, |
cc377381 LP |
722 | "type='signal'," |
723 | "sender='org.freedesktop.systemd1'," | |
724 | "interface='org.freedesktop.DBus.Properties'," | |
725 | "member='PropertiesChanged'", | |
726 | match_properties_changed, m); | |
f647962d MS |
727 | if (r < 0) |
728 | return log_error_errno(r, "Failed to add match for PropertiesChanged: %m"); | |
fb6becb4 | 729 | |
cc377381 | 730 | r = sd_bus_add_match(m->bus, |
19befb2d | 731 | NULL, |
cc377381 LP |
732 | "type='signal'," |
733 | "sender='org.freedesktop.systemd1'," | |
734 | "interface='org.freedesktop.systemd1.Manager'," | |
735 | "member='Reloading'," | |
736 | "path='/org/freedesktop/systemd1'", | |
737 | match_reloading, m); | |
f647962d MS |
738 | if (r < 0) |
739 | return log_error_errno(r, "Failed to add match for Reloading: %m"); | |
6797c324 | 740 | |
cc377381 | 741 | r = sd_bus_call_method( |
fb6becb4 LP |
742 | m->bus, |
743 | "org.freedesktop.systemd1", | |
744 | "/org/freedesktop/systemd1", | |
745 | "org.freedesktop.systemd1.Manager", | |
746 | "Subscribe", | |
fb6becb4 | 747 | &error, |
cc377381 | 748 | NULL, NULL); |
fb6becb4 | 749 | if (r < 0) { |
cc377381 LP |
750 | log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); |
751 | return r; | |
20263082 LP |
752 | } |
753 | ||
5bb658a1 | 754 | r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0); |
f647962d MS |
755 | if (r < 0) |
756 | return log_error_errno(r, "Failed to register name: %m"); | |
bafd4449 | 757 | |
e11544a8 | 758 | r = sd_bus_attach_event(m->bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
f647962d MS |
759 | if (r < 0) |
760 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
20263082 | 761 | |
20263082 | 762 | return 0; |
20263082 LP |
763 | } |
764 | ||
92683ad2 DH |
765 | static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) { |
766 | Manager *m = data; | |
767 | Session *active, *iter; | |
768 | ||
769 | /* | |
770 | * We got a VT-switch signal and we have to acknowledge it immediately. | |
771 | * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately, | |
772 | * old user-space might run multiple sessions on a single VT, *sigh*. | |
773 | * Therefore, we have to iterate all sessions and find one with a vtfd | |
774 | * on the requested VT. | |
775 | * As only VTs with active controllers have VT_PROCESS set, our current | |
776 | * notion of the active VT might be wrong (for instance if the switch | |
777 | * happens while we setup VT_PROCESS). Therefore, read the current VT | |
778 | * first and then use s->active->vtnr as reference. Note that this is | |
779 | * not racy, as no further VT-switch can happen as long as we're in | |
780 | * synchronous VT_PROCESS mode. | |
781 | */ | |
782 | ||
783 | assert(m->seat0); | |
784 | seat_read_active_vt(m->seat0); | |
785 | ||
786 | active = m->seat0->active; | |
787 | if (!active || active->vtnr < 1) { | |
788 | log_warning("Received VT_PROCESS signal without a registered session on that VT."); | |
789 | return 0; | |
790 | } | |
791 | ||
792 | if (active->vtfd >= 0) { | |
2ec3ff66 | 793 | session_leave_vt(active); |
92683ad2 DH |
794 | } else { |
795 | LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) { | |
796 | if (iter->vtnr == active->vtnr && iter->vtfd >= 0) { | |
2ec3ff66 | 797 | session_leave_vt(iter); |
92683ad2 DH |
798 | break; |
799 | } | |
800 | } | |
801 | } | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
20263082 | 806 | static int manager_connect_console(Manager *m) { |
cc377381 | 807 | int r; |
20263082 LP |
808 | |
809 | assert(m); | |
810 | assert(m->console_active_fd < 0); | |
811 | ||
74afee9c LP |
812 | /* On certain architectures (S390 and Xen, and containers), |
813 | /dev/tty0 does not exist, so don't fail if we can't open | |
814 | it. */ | |
cc377381 | 815 | if (access("/dev/tty0", F_OK) < 0) |
74afee9c | 816 | return 0; |
74afee9c | 817 | |
20263082 LP |
818 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); |
819 | if (m->console_active_fd < 0) { | |
cdc564d2 MS |
820 | |
821 | /* On some systems the device node /dev/tty0 may exist | |
822 | * even though /sys/class/tty/tty0 does not. */ | |
823 | if (errno == ENOENT) | |
824 | return 0; | |
825 | ||
e1427b13 | 826 | return log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); |
20263082 LP |
827 | } |
828 | ||
151b9b96 | 829 | r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); |
cc377381 LP |
830 | if (r < 0) { |
831 | log_error("Failed to watch foreground console"); | |
832 | return r; | |
833 | } | |
20263082 | 834 | |
92683ad2 DH |
835 | /* |
836 | * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used | |
837 | * as VT-acquire signal. We ignore any acquire-events (yes, we still | |
838 | * have to provide a valid signal-number for it!) and acknowledge all | |
839 | * release events immediately. | |
840 | */ | |
841 | ||
842 | if (SIGRTMIN + 1 > SIGRTMAX) { | |
843 | log_error("Not enough real-time signals available: %u-%u", SIGRTMIN, SIGRTMAX); | |
844 | return -EINVAL; | |
845 | } | |
846 | ||
72c0a2c2 LP |
847 | assert_se(ignore_signals(SIGRTMIN + 1, -1) >= 0); |
848 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0); | |
92683ad2 DH |
849 | |
850 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); | |
851 | if (r < 0) | |
852 | return r; | |
853 | ||
20263082 LP |
854 | return 0; |
855 | } | |
856 | ||
857 | static int manager_connect_udev(Manager *m) { | |
14c3baca | 858 | int r; |
20263082 LP |
859 | |
860 | assert(m); | |
30ed21ce | 861 | assert(!m->udev_seat_monitor); |
718d006a | 862 | assert(!m->udev_device_monitor); |
30ed21ce | 863 | assert(!m->udev_vcsa_monitor); |
069cfc85 | 864 | assert(!m->udev_button_monitor); |
20263082 | 865 | |
30ed21ce LP |
866 | m->udev_seat_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
867 | if (!m->udev_seat_monitor) | |
20263082 LP |
868 | return -ENOMEM; |
869 | ||
2d96536d | 870 | r = udev_monitor_filter_add_match_tag(m->udev_seat_monitor, "master-of-seat"); |
14c3baca LP |
871 | if (r < 0) |
872 | return r; | |
20263082 | 873 | |
30ed21ce | 874 | r = udev_monitor_enable_receiving(m->udev_seat_monitor); |
14c3baca LP |
875 | if (r < 0) |
876 | return r; | |
20263082 | 877 | |
151b9b96 | 878 | 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 |
879 | if (r < 0) |
880 | return r; | |
069cfc85 | 881 | |
718d006a DH |
882 | m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
883 | if (!m->udev_device_monitor) | |
884 | return -ENOMEM; | |
885 | ||
886 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "input", NULL); | |
887 | if (r < 0) | |
888 | return r; | |
889 | ||
890 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "graphics", NULL); | |
891 | if (r < 0) | |
892 | return r; | |
893 | ||
894 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_device_monitor, "drm", NULL); | |
895 | if (r < 0) | |
896 | return r; | |
897 | ||
898 | r = udev_monitor_enable_receiving(m->udev_device_monitor); | |
899 | if (r < 0) | |
900 | return r; | |
901 | ||
151b9b96 | 902 | 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 |
903 | if (r < 0) |
904 | return r; | |
718d006a | 905 | |
6de0e0e5 | 906 | /* Don't watch keys if nobody cares */ |
beaafb2e | 907 | if (m->handle_power_key != HANDLE_IGNORE || |
8e7fd6ad LP |
908 | m->handle_suspend_key != HANDLE_IGNORE || |
909 | m->handle_hibernate_key != HANDLE_IGNORE || | |
3c56cab4 BW |
910 | m->handle_lid_switch != HANDLE_IGNORE || |
911 | m->handle_lid_switch_docked != HANDLE_IGNORE) { | |
069cfc85 | 912 | |
6de0e0e5 LP |
913 | m->udev_button_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
914 | if (!m->udev_button_monitor) | |
915 | return -ENOMEM; | |
069cfc85 | 916 | |
6de0e0e5 LP |
917 | r = udev_monitor_filter_add_match_tag(m->udev_button_monitor, "power-switch"); |
918 | if (r < 0) | |
919 | return r; | |
069cfc85 | 920 | |
6de0e0e5 LP |
921 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_button_monitor, "input", NULL); |
922 | if (r < 0) | |
923 | return r; | |
069cfc85 | 924 | |
6de0e0e5 LP |
925 | r = udev_monitor_enable_receiving(m->udev_button_monitor); |
926 | if (r < 0) | |
927 | return r; | |
069cfc85 | 928 | |
151b9b96 | 929 | 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 |
930 | if (r < 0) |
931 | return r; | |
6de0e0e5 | 932 | } |
069cfc85 | 933 | |
976c088a | 934 | /* Don't bother watching VCSA devices, if nobody cares */ |
6de0e0e5 | 935 | if (m->n_autovts > 0 && m->console_active_fd >= 0) { |
30ed21ce | 936 | |
6de0e0e5 LP |
937 | m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); |
938 | if (!m->udev_vcsa_monitor) | |
939 | return -ENOMEM; | |
30ed21ce | 940 | |
6de0e0e5 LP |
941 | r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL); |
942 | if (r < 0) | |
943 | return r; | |
30ed21ce | 944 | |
6de0e0e5 LP |
945 | r = udev_monitor_enable_receiving(m->udev_vcsa_monitor); |
946 | if (r < 0) | |
947 | return r; | |
30ed21ce | 948 | |
151b9b96 | 949 | 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 |
950 | if (r < 0) |
951 | return r; | |
6de0e0e5 | 952 | } |
20263082 LP |
953 | |
954 | return 0; | |
955 | } | |
956 | ||
905f0a39 | 957 | static void manager_gc(Manager *m, bool drop_not_started) { |
14c3baca LP |
958 | Seat *seat; |
959 | Session *session; | |
960 | User *user; | |
961 | ||
962 | assert(m); | |
963 | ||
964 | while ((seat = m->seat_gc_queue)) { | |
71fda00f | 965 | LIST_REMOVE(gc_queue, m->seat_gc_queue, seat); |
14c3baca LP |
966 | seat->in_gc_queue = false; |
967 | ||
cc377381 | 968 | if (!seat_check_gc(seat, drop_not_started)) { |
9bb69af4 | 969 | seat_stop(seat, false); |
14c3baca LP |
970 | seat_free(seat); |
971 | } | |
972 | } | |
973 | ||
974 | while ((session = m->session_gc_queue)) { | |
71fda00f | 975 | LIST_REMOVE(gc_queue, m->session_gc_queue, session); |
14c3baca LP |
976 | session->in_gc_queue = false; |
977 | ||
5f41d1f1 LP |
978 | /* First, if we are not closing yet, initiate stopping */ |
979 | if (!session_check_gc(session, drop_not_started) && | |
980 | session_get_state(session) != SESSION_CLOSING) | |
9bb69af4 | 981 | session_stop(session, false); |
5f41d1f1 | 982 | |
491ac9f2 LP |
983 | /* Normally, this should make the session referenced |
984 | * again, if it doesn't then let's get rid of it | |
5f41d1f1 LP |
985 | * immediately */ |
986 | if (!session_check_gc(session, drop_not_started)) { | |
405e0255 | 987 | session_finalize(session); |
14c3baca LP |
988 | session_free(session); |
989 | } | |
990 | } | |
991 | ||
992 | while ((user = m->user_gc_queue)) { | |
71fda00f | 993 | LIST_REMOVE(gc_queue, m->user_gc_queue, user); |
14c3baca LP |
994 | user->in_gc_queue = false; |
995 | ||
b58b227a DH |
996 | /* First step: queue stop jobs */ |
997 | if (!user_check_gc(user, drop_not_started)) | |
9bb69af4 | 998 | user_stop(user, false); |
5f41d1f1 | 999 | |
b58b227a | 1000 | /* Second step: finalize user */ |
5f41d1f1 | 1001 | if (!user_check_gc(user, drop_not_started)) { |
405e0255 | 1002 | user_finalize(user); |
14c3baca LP |
1003 | user_free(user); |
1004 | } | |
1005 | } | |
1006 | } | |
1007 | ||
cc377381 LP |
1008 | static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { |
1009 | Manager *m = userdata; | |
23406ce5 | 1010 | struct dual_timestamp since; |
cc377381 | 1011 | usec_t n, elapse; |
23406ce5 | 1012 | int r; |
23406ce5 LP |
1013 | |
1014 | assert(m); | |
1015 | ||
1016 | if (m->idle_action == HANDLE_IGNORE || | |
cc377381 LP |
1017 | m->idle_action_usec <= 0) |
1018 | return 0; | |
23406ce5 | 1019 | |
23406ce5 LP |
1020 | n = now(CLOCK_MONOTONIC); |
1021 | ||
1022 | r = manager_get_idle_hint(m, &since); | |
1023 | if (r <= 0) | |
39ccc87c | 1024 | /* Not idle. Let's check if after a timeout it might be idle then. */ |
cc377381 | 1025 | elapse = n + m->idle_action_usec; |
23406ce5 LP |
1026 | else { |
1027 | /* Idle! Let's see if it's time to do something, or if | |
1028 | * we shall sleep for longer. */ | |
1029 | ||
1030 | if (n >= since.monotonic + m->idle_action_usec && | |
1031 | (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) { | |
1032 | log_info("System idle. Taking action."); | |
1033 | ||
1034 | manager_handle_action(m, 0, m->idle_action, false, false); | |
1035 | m->idle_action_not_before_usec = n; | |
1036 | } | |
1037 | ||
cc377381 | 1038 | elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; |
23406ce5 LP |
1039 | } |
1040 | ||
cc377381 | 1041 | if (!m->idle_action_event_source) { |
23406ce5 | 1042 | |
6a0f1f6d LP |
1043 | r = sd_event_add_time( |
1044 | m->event, | |
1045 | &m->idle_action_event_source, | |
1046 | CLOCK_MONOTONIC, | |
1047 | elapse, USEC_PER_SEC*30, | |
1048 | manager_dispatch_idle_action, m); | |
f647962d MS |
1049 | if (r < 0) |
1050 | return log_error_errno(r, "Failed to add idle event source: %m"); | |
23406ce5 | 1051 | |
718db961 | 1052 | r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); |
f647962d MS |
1053 | if (r < 0) |
1054 | return log_error_errno(r, "Failed to set idle event source priority: %m"); | |
cc377381 LP |
1055 | } else { |
1056 | r = sd_event_source_set_time(m->idle_action_event_source, elapse); | |
f647962d MS |
1057 | if (r < 0) |
1058 | return log_error_errno(r, "Failed to set idle event timer: %m"); | |
23406ce5 | 1059 | |
cc377381 | 1060 | r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); |
f647962d MS |
1061 | if (r < 0) |
1062 | return log_error_errno(r, "Failed to enable idle event timer: %m"); | |
23406ce5 LP |
1063 | } |
1064 | ||
1065 | return 0; | |
23406ce5 | 1066 | } |
cc377381 | 1067 | |
a2ed7077 ZJS |
1068 | static int manager_parse_config_file(Manager *m) { |
1069 | assert(m); | |
1070 | ||
43688c49 | 1071 | return config_parse_many_nulstr(PKGSYSCONFDIR "/logind.conf", |
da412854 YW |
1072 | CONF_PATHS_NULSTR("systemd/logind.conf.d"), |
1073 | "Login\0", | |
1074 | config_item_perf_lookup, logind_gperf_lookup, | |
1075 | false, m); | |
a2ed7077 ZJS |
1076 | } |
1077 | ||
1078 | static int manager_dispatch_reload_signal(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { | |
1079 | Manager *m = userdata; | |
1080 | int r; | |
1081 | ||
1082 | manager_reset_config(m); | |
1083 | r = manager_parse_config_file(m); | |
1084 | if (r < 0) | |
1085 | log_warning_errno(r, "Failed to parse config file, using defaults: %m"); | |
1086 | else | |
1087 | log_info("Config file reloaded."); | |
1088 | ||
1089 | return 0; | |
1090 | } | |
1091 | ||
905f0a39 | 1092 | static int manager_startup(Manager *m) { |
20263082 | 1093 | int r; |
14c3baca LP |
1094 | Seat *seat; |
1095 | Session *session; | |
1096 | User *user; | |
ed4ba7e4 | 1097 | Button *button; |
f8e2fb7b | 1098 | Inhibitor *inhibitor; |
14c3baca | 1099 | Iterator i; |
20263082 LP |
1100 | |
1101 | assert(m); | |
20263082 | 1102 | |
a2ed7077 ZJS |
1103 | assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGHUP, -1) >= 0); |
1104 | ||
1105 | r = sd_event_add_signal(m->event, NULL, SIGHUP, manager_dispatch_reload_signal, m); | |
1106 | if (r < 0) | |
1107 | return log_error_errno(r, "Failed to register SIGHUP handler: %m"); | |
1108 | ||
976c088a LP |
1109 | /* Connect to console */ |
1110 | r = manager_connect_console(m); | |
20263082 LP |
1111 | if (r < 0) |
1112 | return r; | |
1113 | ||
976c088a LP |
1114 | /* Connect to udev */ |
1115 | r = manager_connect_udev(m); | |
f647962d MS |
1116 | if (r < 0) |
1117 | return log_error_errno(r, "Failed to create udev watchers: %m"); | |
20263082 LP |
1118 | |
1119 | /* Connect to the bus */ | |
1120 | r = manager_connect_bus(m); | |
1121 | if (r < 0) | |
1122 | return r; | |
1123 | ||
14c3baca | 1124 | /* Instantiate magic seat 0 */ |
92432fcc | 1125 | r = manager_add_seat(m, "seat0", &m->seat0); |
f647962d MS |
1126 | if (r < 0) |
1127 | return log_error_errno(r, "Failed to add seat0: %m"); | |
14c3baca | 1128 | |
9d10cbee | 1129 | r = manager_set_lid_switch_ignore(m, 0 + m->holdoff_timeout_usec); |
f9cd6be1 | 1130 | if (r < 0) |
da927ba9 | 1131 | log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); |
f9cd6be1 | 1132 | |
20263082 | 1133 | /* Deserialize state */ |
042f5988 ZJS |
1134 | r = manager_enumerate_devices(m); |
1135 | if (r < 0) | |
da927ba9 | 1136 | log_warning_errno(r, "Device enumeration failed: %m"); |
042f5988 ZJS |
1137 | |
1138 | r = manager_enumerate_seats(m); | |
1139 | if (r < 0) | |
da927ba9 | 1140 | log_warning_errno(r, "Seat enumeration failed: %m"); |
042f5988 ZJS |
1141 | |
1142 | r = manager_enumerate_users(m); | |
1143 | if (r < 0) | |
da927ba9 | 1144 | log_warning_errno(r, "User enumeration failed: %m"); |
042f5988 ZJS |
1145 | |
1146 | r = manager_enumerate_sessions(m); | |
1147 | if (r < 0) | |
da927ba9 | 1148 | log_warning_errno(r, "Session enumeration failed: %m"); |
042f5988 ZJS |
1149 | |
1150 | r = manager_enumerate_inhibitors(m); | |
1151 | if (r < 0) | |
da927ba9 | 1152 | log_warning_errno(r, "Inhibitor enumeration failed: %m"); |
042f5988 ZJS |
1153 | |
1154 | r = manager_enumerate_buttons(m); | |
1155 | if (r < 0) | |
da927ba9 | 1156 | log_warning_errno(r, "Button enumeration failed: %m"); |
20263082 | 1157 | |
4a4b033f LP |
1158 | /* Remove stale objects before we start them */ |
1159 | manager_gc(m, false); | |
1160 | ||
98a77df5 LP |
1161 | /* Reserve the special reserved VT */ |
1162 | manager_reserve_vt(m); | |
1163 | ||
14c3baca LP |
1164 | /* And start everything */ |
1165 | HASHMAP_FOREACH(seat, m->seats, i) | |
1166 | seat_start(seat); | |
1167 | ||
1168 | HASHMAP_FOREACH(user, m->users, i) | |
1169 | user_start(user); | |
1170 | ||
1171 | HASHMAP_FOREACH(session, m->sessions, i) | |
1172 | session_start(session); | |
20263082 | 1173 | |
f8e2fb7b LP |
1174 | HASHMAP_FOREACH(inhibitor, m->inhibitors, i) |
1175 | inhibitor_start(inhibitor); | |
1176 | ||
ed4ba7e4 | 1177 | HASHMAP_FOREACH(button, m->buttons, i) |
2d62c530 | 1178 | button_check_switches(button); |
ed4ba7e4 | 1179 | |
cc377381 | 1180 | manager_dispatch_idle_action(NULL, 0, m); |
23406ce5 | 1181 | |
20263082 LP |
1182 | return 0; |
1183 | } | |
1184 | ||
905f0a39 | 1185 | static int manager_run(Manager *m) { |
cc377381 LP |
1186 | int r; |
1187 | ||
20263082 LP |
1188 | assert(m); |
1189 | ||
1190 | for (;;) { | |
cc377381 LP |
1191 | r = sd_event_get_state(m->event); |
1192 | if (r < 0) | |
1193 | return r; | |
1194 | if (r == SD_EVENT_FINISHED) | |
1195 | return 0; | |
20263082 | 1196 | |
4a4b033f | 1197 | manager_gc(m, true); |
14c3baca | 1198 | |
418b22b8 DM |
1199 | r = manager_dispatch_delayed(m, false); |
1200 | if (r < 0) | |
1201 | return r; | |
1202 | if (r > 0) | |
1203 | continue; | |
1204 | ||
c0f32805 | 1205 | r = sd_event_run(m->event, (uint64_t) -1); |
cc377381 LP |
1206 | if (r < 0) |
1207 | return r; | |
20263082 | 1208 | } |
20263082 LP |
1209 | } |
1210 | ||
1211 | int main(int argc, char *argv[]) { | |
1212 | Manager *m = NULL; | |
5eda94dd | 1213 | int r; |
20263082 LP |
1214 | |
1215 | log_set_target(LOG_TARGET_AUTO); | |
3eff4208 | 1216 | log_set_facility(LOG_AUTH); |
20263082 LP |
1217 | log_parse_environment(); |
1218 | log_open(); | |
1219 | ||
4c12626c LP |
1220 | umask(0022); |
1221 | ||
20263082 LP |
1222 | if (argc != 1) { |
1223 | log_error("This program takes no arguments."); | |
1224 | r = -EINVAL; | |
1225 | goto finish; | |
1226 | } | |
1227 | ||
c3dacc8b | 1228 | r = mac_selinux_init(); |
4b51966c NI |
1229 | if (r < 0) { |
1230 | log_error_errno(r, "Could not initialize labelling: %m"); | |
1231 | goto finish; | |
1232 | } | |
1233 | ||
bb27ff66 LP |
1234 | /* Always create the directories people can create inotify |
1235 | * watches in. Note that some applications might check for the | |
ab06eef8 | 1236 | * existence of /run/systemd/seats/ to determine whether |
bb27ff66 LP |
1237 | * logind is available, so please always make sure this check |
1238 | * stays in. */ | |
1239 | mkdir_label("/run/systemd/seats", 0755); | |
1240 | mkdir_label("/run/systemd/users", 0755); | |
1241 | mkdir_label("/run/systemd/sessions", 0755); | |
1242 | ||
20263082 LP |
1243 | m = manager_new(); |
1244 | if (!m) { | |
0d0f0c50 | 1245 | r = log_oom(); |
20263082 LP |
1246 | goto finish; |
1247 | } | |
1248 | ||
193197e8 LP |
1249 | manager_parse_config_file(m); |
1250 | ||
20263082 LP |
1251 | r = manager_startup(m); |
1252 | if (r < 0) { | |
da927ba9 | 1253 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
20263082 LP |
1254 | goto finish; |
1255 | } | |
1256 | ||
df0ff127 | 1257 | log_debug("systemd-logind running as pid "PID_FMT, getpid_cached()); |
e6960940 LP |
1258 | |
1259 | sd_notify(false, | |
1260 | "READY=1\n" | |
1261 | "STATUS=Processing requests..."); | |
1262 | ||
20263082 LP |
1263 | r = manager_run(m); |
1264 | ||
df0ff127 | 1265 | log_debug("systemd-logind stopped as pid "PID_FMT, getpid_cached()); |
e6960940 | 1266 | |
20263082 | 1267 | finish: |
e6960940 | 1268 | sd_notify(false, |
af4ec430 | 1269 | "STOPPING=1\n" |
e6960940 LP |
1270 | "STATUS=Shutting down..."); |
1271 | ||
3e044c49 | 1272 | manager_free(m); |
20263082 LP |
1273 | |
1274 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1275 | } |