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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
20263082 LP |
2 | |
3 | #include <errno.h> | |
20263082 | 4 | #include <fcntl.h> |
ac4e03d4 | 5 | #include <sys/types.h> |
20263082 | 6 | #include <unistd.h> |
20263082 | 7 | |
cc377381 | 8 | #include "sd-daemon.h" |
4f209af7 | 9 | #include "sd-device.h" |
07630cea | 10 | |
b5efdb8a | 11 | #include "alloc-util.h" |
cc377381 | 12 | #include "bus-error.h" |
ac9f55ed | 13 | #include "bus-log-control-api.h" |
269e4d2d | 14 | #include "bus-polkit.h" |
5d990cc5 | 15 | #include "bus-util.h" |
dccca82b | 16 | #include "cgroup-util.h" |
a0f29c76 | 17 | #include "def.h" |
8437c059 | 18 | #include "device-util.h" |
a0956174 | 19 | #include "dirent-util.h" |
3ffd4af2 | 20 | #include "fd-util.h" |
f97b34a6 | 21 | #include "format-util.h" |
af229d7a | 22 | #include "fs-util.h" |
6ecda0fb LP |
23 | #include "logind-dbus.h" |
24 | #include "logind-seat-dbus.h" | |
25 | #include "logind-session-dbus.h" | |
26 | #include "logind-user-dbus.h" | |
3ffd4af2 | 27 | #include "logind.h" |
5e332028 | 28 | #include "main-func.h" |
1bef256c | 29 | #include "parse-util.h" |
dccca82b | 30 | #include "process-util.h" |
4b51966c | 31 | #include "selinux-util.h" |
fc021a5b | 32 | #include "service-util.h" |
24882e06 | 33 | #include "signal-util.h" |
07630cea | 34 | #include "strv.h" |
adb8688b | 35 | #include "terminal-util.h" |
91bd2c34 | 36 | #include "udev-util.h" |
ac4e03d4 | 37 | #include "user-util.h" |
20263082 | 38 | |
23462168 LP |
39 | static Manager* manager_unref(Manager *m); |
40 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_unref); | |
905f0a39 | 41 | |
23462168 LP |
42 | static int manager_new(Manager **ret) { |
43 | _cleanup_(manager_unrefp) Manager *m = NULL; | |
a2ed7077 ZJS |
44 | int r; |
45 | ||
23462168 LP |
46 | assert(ret); |
47 | ||
b25ba6cf | 48 | m = new(Manager, 1); |
a2ed7077 | 49 | if (!m) |
23462168 | 50 | return -ENOMEM; |
a2ed7077 | 51 | |
b25ba6cf LP |
52 | *m = (Manager) { |
53 | .console_active_fd = -1, | |
54 | .reserve_vt_fd = -1, | |
e83b8b6b | 55 | .idle_action_not_before_usec = now(CLOCK_MONOTONIC), |
b25ba6cf | 56 | }; |
a2ed7077 | 57 | |
d5099efc MS |
58 | m->devices = hashmap_new(&string_hash_ops); |
59 | m->seats = hashmap_new(&string_hash_ops); | |
60 | m->sessions = hashmap_new(&string_hash_ops); | |
238794b1 | 61 | m->sessions_by_leader = hashmap_new(NULL); |
d5099efc MS |
62 | m->users = hashmap_new(NULL); |
63 | m->inhibitors = hashmap_new(&string_hash_ops); | |
64 | m->buttons = hashmap_new(&string_hash_ops); | |
f8e2fb7b | 65 | |
d5099efc MS |
66 | m->user_units = hashmap_new(&string_hash_ops); |
67 | m->session_units = hashmap_new(&string_hash_ops); | |
8c8c4351 | 68 | |
238794b1 | 69 | if (!m->devices || !m->seats || !m->sessions || !m->sessions_by_leader || !m->users || !m->inhibitors || !m->buttons || !m->user_units || !m->session_units) |
23462168 | 70 | return -ENOMEM; |
25d93491 | 71 | |
afc6adb5 | 72 | r = sd_event_default(&m->event); |
ed4ba7e4 | 73 | if (r < 0) |
23462168 | 74 | return r; |
cc377381 | 75 | |
fcfa765d LP |
76 | r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); |
77 | if (r < 0) | |
78 | return r; | |
79 | ||
80 | r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); | |
81 | if (r < 0) | |
82 | return r; | |
83 | ||
23462168 | 84 | (void) sd_event_set_watchdog(m->event, true); |
cde93897 | 85 | |
a2ed7077 ZJS |
86 | manager_reset_config(m); |
87 | ||
23462168 LP |
88 | *ret = TAKE_PTR(m); |
89 | return 0; | |
20263082 LP |
90 | } |
91 | ||
23462168 | 92 | static Manager* manager_unref(Manager *m) { |
20263082 LP |
93 | Session *session; |
94 | User *u; | |
95 | Device *d; | |
96 | Seat *s; | |
f8e2fb7b | 97 | Inhibitor *i; |
069cfc85 | 98 | Button *b; |
20263082 | 99 | |
84a4e660 | 100 | if (!m) |
23462168 | 101 | return NULL; |
20263082 LP |
102 | |
103 | while ((session = hashmap_first(m->sessions))) | |
104 | session_free(session); | |
105 | ||
106 | while ((u = hashmap_first(m->users))) | |
107 | user_free(u); | |
108 | ||
109 | while ((d = hashmap_first(m->devices))) | |
110 | device_free(d); | |
111 | ||
112 | while ((s = hashmap_first(m->seats))) | |
113 | seat_free(s); | |
114 | ||
f8e2fb7b LP |
115 | while ((i = hashmap_first(m->inhibitors))) |
116 | inhibitor_free(i); | |
117 | ||
069cfc85 LP |
118 | while ((b = hashmap_first(m->buttons))) |
119 | button_free(b); | |
120 | ||
20263082 LP |
121 | hashmap_free(m->devices); |
122 | hashmap_free(m->seats); | |
f8e2fb7b | 123 | hashmap_free(m->sessions); |
238794b1 | 124 | hashmap_free(m->sessions_by_leader); |
f8e2fb7b LP |
125 | hashmap_free(m->users); |
126 | hashmap_free(m->inhibitors); | |
069cfc85 | 127 | hashmap_free(m->buttons); |
2a66c2a1 | 128 | hashmap_free(m->brightness_writers); |
f8e2fb7b | 129 | |
fb6becb4 LP |
130 | hashmap_free(m->user_units); |
131 | hashmap_free(m->session_units); | |
8c8c4351 | 132 | |
cc377381 | 133 | sd_event_source_unref(m->idle_action_event_source); |
c0f32805 | 134 | sd_event_source_unref(m->inhibit_timeout_source); |
8aaa023a | 135 | sd_event_source_unref(m->scheduled_shutdown_timeout_source); |
867c37f6 | 136 | sd_event_source_unref(m->nologin_timeout_source); |
e2fa5721 | 137 | sd_event_source_unref(m->wall_message_timeout_source); |
cc377381 LP |
138 | |
139 | sd_event_source_unref(m->console_active_event_source); | |
f9cd6be1 | 140 | sd_event_source_unref(m->lid_switch_ignore_event_source); |
20263082 | 141 | |
3d0ef5c7 LP |
142 | #if ENABLE_UTMP |
143 | sd_event_source_unref(m->utmp_event_source); | |
144 | #endif | |
145 | ||
03e334a1 | 146 | safe_close(m->console_active_fd); |
20263082 | 147 | |
eb968396 YW |
148 | sd_device_monitor_unref(m->device_seat_monitor); |
149 | sd_device_monitor_unref(m->device_monitor); | |
150 | sd_device_monitor_unref(m->device_vcsa_monitor); | |
151 | sd_device_monitor_unref(m->device_button_monitor); | |
3e044c49 | 152 | |
867c37f6 | 153 | if (m->unlink_nologin) |
af229d7a | 154 | (void) unlink_or_warn("/run/nologin"); |
867c37f6 | 155 | |
36e34057 | 156 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
20263082 | 157 | |
92e31da1 | 158 | sd_bus_flush_close_unref(m->bus); |
cc377381 | 159 | sd_event_unref(m->event); |
20263082 | 160 | |
03e334a1 | 161 | safe_close(m->reserve_vt_fd); |
98a77df5 | 162 | |
193197e8 LP |
163 | strv_free(m->kill_only_users); |
164 | strv_free(m->kill_exclude_users); | |
165 | ||
8aaa023a | 166 | free(m->scheduled_shutdown_type); |
e2fa5721 DM |
167 | free(m->scheduled_shutdown_tty); |
168 | free(m->wall_message); | |
af9792ac | 169 | free(m->action_job); |
23462168 | 170 | |
d4bd786d LP |
171 | strv_free(m->efi_boot_loader_entries); |
172 | ||
23462168 | 173 | return mfree(m); |
20263082 LP |
174 | } |
175 | ||
9588bc32 | 176 | static int manager_enumerate_devices(Manager *m) { |
4f209af7 YW |
177 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
178 | sd_device *d; | |
14c3baca | 179 | int r; |
20263082 LP |
180 | |
181 | assert(m); | |
182 | ||
183 | /* Loads devices from udev and creates seats for them as | |
184 | * necessary */ | |
185 | ||
4f209af7 | 186 | r = sd_device_enumerator_new(&e); |
14c3baca | 187 | if (r < 0) |
bf5332d2 | 188 | return r; |
20263082 | 189 | |
4f209af7 | 190 | r = sd_device_enumerator_add_match_tag(e, "master-of-seat"); |
e1202047 LP |
191 | if (r < 0) |
192 | return r; | |
193 | ||
8437c059 | 194 | FOREACH_DEVICE(e, d) { |
20263082 LP |
195 | int k; |
196 | ||
bf5332d2 | 197 | k = manager_process_seat_device(m, d); |
20263082 LP |
198 | if (k < 0) |
199 | r = k; | |
200 | } | |
201 | ||
20263082 LP |
202 | return r; |
203 | } | |
204 | ||
9588bc32 | 205 | static int manager_enumerate_buttons(Manager *m) { |
4f209af7 YW |
206 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
207 | sd_device *d; | |
069cfc85 LP |
208 | int r; |
209 | ||
210 | assert(m); | |
211 | ||
212 | /* Loads buttons from udev */ | |
213 | ||
e25937a3 | 214 | if (manager_all_buttons_ignored(m)) |
6de0e0e5 LP |
215 | return 0; |
216 | ||
4f209af7 | 217 | r = sd_device_enumerator_new(&e); |
069cfc85 | 218 | if (r < 0) |
bf5332d2 | 219 | return r; |
069cfc85 | 220 | |
4f209af7 | 221 | r = sd_device_enumerator_add_match_subsystem(e, "input", true); |
069cfc85 | 222 | if (r < 0) |
bf5332d2 | 223 | return r; |
069cfc85 | 224 | |
4f209af7 | 225 | r = sd_device_enumerator_add_match_tag(e, "power-switch"); |
e1202047 LP |
226 | if (r < 0) |
227 | return r; | |
228 | ||
8437c059 | 229 | FOREACH_DEVICE(e, d) { |
069cfc85 LP |
230 | int k; |
231 | ||
bf5332d2 | 232 | k = manager_process_button_device(m, d); |
069cfc85 LP |
233 | if (k < 0) |
234 | r = k; | |
235 | } | |
236 | ||
069cfc85 LP |
237 | return r; |
238 | } | |
239 | ||
9588bc32 | 240 | static int manager_enumerate_seats(Manager *m) { |
9444b1f2 | 241 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
242 | struct dirent *de; |
243 | int r = 0; | |
244 | ||
245 | assert(m); | |
246 | ||
247 | /* This loads data about seats stored on disk, but does not | |
248 | * actually create any seats. Removes data of seats that no | |
249 | * longer exist. */ | |
250 | ||
251 | d = opendir("/run/systemd/seats"); | |
252 | if (!d) { | |
253 | if (errno == ENOENT) | |
254 | return 0; | |
255 | ||
e1427b13 | 256 | return log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); |
20263082 LP |
257 | } |
258 | ||
9444b1f2 | 259 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 LP |
260 | Seat *s; |
261 | int k; | |
262 | ||
263 | if (!dirent_is_file(de)) | |
264 | continue; | |
265 | ||
266 | s = hashmap_get(m->seats, de->d_name); | |
267 | if (!s) { | |
cb51ee7a ZJS |
268 | if (unlinkat(dirfd(d), de->d_name, 0) < 0) |
269 | log_warning("Failed to remove /run/systemd/seats/%s: %m", | |
270 | de->d_name); | |
20263082 LP |
271 | continue; |
272 | } | |
273 | ||
274 | k = seat_load(s); | |
275 | if (k < 0) | |
276 | r = k; | |
277 | } | |
278 | ||
14c3baca LP |
279 | return r; |
280 | } | |
20263082 | 281 | |
14c3baca | 282 | static int manager_enumerate_linger_users(Manager *m) { |
9444b1f2 | 283 | _cleanup_closedir_ DIR *d = NULL; |
14c3baca LP |
284 | struct dirent *de; |
285 | int r = 0; | |
286 | ||
9444b1f2 LP |
287 | assert(m); |
288 | ||
14c3baca LP |
289 | d = opendir("/var/lib/systemd/linger"); |
290 | if (!d) { | |
291 | if (errno == ENOENT) | |
292 | return 0; | |
293 | ||
e1427b13 | 294 | return log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); |
14c3baca LP |
295 | } |
296 | ||
9444b1f2 | 297 | FOREACH_DIRENT(de, d, return -errno) { |
14c3baca LP |
298 | int k; |
299 | ||
28e68bb2 | 300 | dirent_ensure_type(d, de); |
14c3baca | 301 | if (!dirent_is_file(de)) |
20263082 LP |
302 | continue; |
303 | ||
14c3baca | 304 | k = manager_add_user_by_name(m, de->d_name, NULL); |
20fff3de LP |
305 | if (k < 0) |
306 | r = log_warning_errno(k, "Couldn't add lingering user %s, ignoring: %m", de->d_name); | |
20263082 LP |
307 | } |
308 | ||
20263082 LP |
309 | return r; |
310 | } | |
311 | ||
9588bc32 | 312 | static int manager_enumerate_users(Manager *m) { |
9444b1f2 | 313 | _cleanup_closedir_ DIR *d = NULL; |
20263082 | 314 | struct dirent *de; |
14c3baca | 315 | int r, k; |
20263082 LP |
316 | |
317 | assert(m); | |
318 | ||
9444b1f2 | 319 | /* Add lingering users */ |
b3629c7d | 320 | r = manager_enumerate_linger_users(m); |
14c3baca | 321 | |
9444b1f2 | 322 | /* Read in user data stored on disk */ |
20263082 LP |
323 | d = opendir("/run/systemd/users"); |
324 | if (!d) { | |
325 | if (errno == ENOENT) | |
326 | return 0; | |
327 | ||
e1427b13 | 328 | return log_error_errno(errno, "Failed to open /run/systemd/users: %m"); |
20263082 LP |
329 | } |
330 | ||
9444b1f2 | 331 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 332 | User *u; |
ac4e03d4 | 333 | uid_t uid; |
20263082 LP |
334 | |
335 | if (!dirent_is_file(de)) | |
336 | continue; | |
337 | ||
ac4e03d4 JP |
338 | k = parse_uid(de->d_name, &uid); |
339 | if (k < 0) { | |
340 | r = log_warning_errno(k, "Failed to parse filename /run/systemd/users/%s as UID.", de->d_name); | |
341 | continue; | |
342 | } | |
343 | ||
344 | k = manager_add_user_by_uid(m, uid, &u); | |
20263082 | 345 | if (k < 0) { |
20fff3de | 346 | r = log_warning_errno(k, "Failed to add user by file name %s, ignoring: %m", de->d_name); |
20263082 LP |
347 | continue; |
348 | } | |
349 | ||
9444b1f2 LP |
350 | user_add_to_gc_queue(u); |
351 | ||
20263082 LP |
352 | k = user_load(u); |
353 | if (k < 0) | |
354 | r = k; | |
355 | } | |
356 | ||
20263082 LP |
357 | return r; |
358 | } | |
359 | ||
1bef256c AJ |
360 | static int parse_fdname(const char *fdname, char **session_id, dev_t *dev) { |
361 | _cleanup_strv_free_ char **parts = NULL; | |
362 | _cleanup_free_ char *id = NULL; | |
14cb109d | 363 | unsigned major, minor; |
1bef256c AJ |
364 | int r; |
365 | ||
366 | parts = strv_split(fdname, "-"); | |
367 | if (!parts) | |
368 | return -ENOMEM; | |
369 | if (strv_length(parts) != 5) | |
370 | return -EINVAL; | |
371 | ||
372 | if (!streq(parts[0], "session")) | |
373 | return -EINVAL; | |
36591e10 | 374 | |
1bef256c AJ |
375 | id = strdup(parts[1]); |
376 | if (!id) | |
377 | return -ENOMEM; | |
378 | ||
379 | if (!streq(parts[2], "device")) | |
380 | return -EINVAL; | |
36591e10 ZJS |
381 | |
382 | r = safe_atou(parts[3], &major); | |
383 | if (r < 0) | |
384 | return r; | |
385 | r = safe_atou(parts[4], &minor); | |
1bef256c AJ |
386 | if (r < 0) |
387 | return r; | |
388 | ||
389 | *dev = makedev(major, minor); | |
ae2a15bc | 390 | *session_id = TAKE_PTR(id); |
1bef256c AJ |
391 | |
392 | return 0; | |
393 | } | |
394 | ||
efc19ee4 LP |
395 | static int deliver_fd(Manager *m, const char *fdname, int fd) { |
396 | _cleanup_free_ char *id = NULL; | |
397 | SessionDevice *sd; | |
398 | struct stat st; | |
399 | Session *s; | |
400 | dev_t dev; | |
401 | int r; | |
402 | ||
403 | assert(m); | |
404 | assert(fd >= 0); | |
405 | ||
406 | r = parse_fdname(fdname, &id, &dev); | |
407 | if (r < 0) | |
408 | return log_debug_errno(r, "Failed to parse fd name %s: %m", fdname); | |
409 | ||
410 | s = hashmap_get(m->sessions, id); | |
411 | if (!s) | |
412 | /* If the session doesn't exist anymore, the associated session device attached to this fd | |
413 | * doesn't either. Let's simply close this fd. */ | |
414 | return log_debug_errno(SYNTHETIC_ERRNO(ENXIO), "Failed to attach fd for unknown session: %s", id); | |
415 | ||
416 | if (fstat(fd, &st) < 0) | |
417 | /* The device is allowed to go away at a random point, in which case fstat() failing is | |
418 | * expected. */ | |
419 | return log_debug_errno(errno, "Failed to stat device fd for session %s: %m", id); | |
420 | ||
421 | if (!S_ISCHR(st.st_mode) || st.st_rdev != dev) | |
422 | return log_debug_errno(SYNTHETIC_ERRNO(ENODEV), "Device fd doesn't point to the expected character device node"); | |
423 | ||
424 | sd = hashmap_get(s->devices, &dev); | |
425 | if (!sd) | |
426 | /* Weird, we got an fd for a session device which wasn't recorded in the session state | |
427 | * file... */ | |
428 | return log_warning_errno(SYNTHETIC_ERRNO(ENODEV), "Got fd for missing session device [%u:%u] in session %s", | |
429 | major(dev), minor(dev), s->id); | |
430 | ||
431 | log_debug("Attaching fd to session device [%u:%u] for session %s", | |
432 | major(dev), minor(dev), s->id); | |
433 | ||
434 | session_device_attach_fd(sd, fd, s->was_active); | |
435 | return 0; | |
436 | } | |
437 | ||
aed24c4c FB |
438 | static int manager_attach_fds(Manager *m) { |
439 | _cleanup_strv_free_ char **fdnames = NULL; | |
efc19ee4 | 440 | int n; |
aed24c4c | 441 | |
efc19ee4 LP |
442 | /* Upon restart, PID1 will send us back all fds of session devices that we previously opened. Each |
443 | * file descriptor is associated with a given session. The session ids are passed through FDNAMES. */ | |
aed24c4c FB |
444 | |
445 | n = sd_listen_fds_with_names(true, &fdnames); | |
efc19ee4 LP |
446 | if (n < 0) |
447 | return log_warning_errno(n, "Failed to acquire passed fd list: %m"); | |
448 | if (n == 0) | |
449 | return 0; | |
aed24c4c | 450 | |
efc19ee4 LP |
451 | for (int i = 0; i < n; i++) { |
452 | int fd = SD_LISTEN_FDS_START + i; | |
aed24c4c | 453 | |
efc19ee4 | 454 | if (deliver_fd(m, fdnames[i], fd) >= 0) |
51ead3e3 | 455 | continue; |
aed24c4c | 456 | |
efc19ee4 LP |
457 | /* Hmm, we couldn't deliver the fd to any session device object? If so, let's close the fd */ |
458 | safe_close(fd); | |
aed24c4c | 459 | |
efc19ee4 LP |
460 | /* Remove from fdstore as well */ |
461 | (void) sd_notifyf(false, | |
462 | "FDSTOREREMOVE=1\n" | |
463 | "FDNAME=%s", fdnames[i]); | |
aed24c4c FB |
464 | } |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
9588bc32 | 469 | static int manager_enumerate_sessions(Manager *m) { |
9444b1f2 LP |
470 | _cleanup_closedir_ DIR *d = NULL; |
471 | struct dirent *de; | |
aed24c4c | 472 | int r = 0, k; |
20263082 | 473 | |
9444b1f2 LP |
474 | assert(m); |
475 | ||
476 | /* Read in session data stored on disk */ | |
477 | d = opendir("/run/systemd/sessions"); | |
478 | if (!d) { | |
479 | if (errno == ENOENT) | |
480 | return 0; | |
481 | ||
e1427b13 | 482 | return log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); |
9444b1f2 LP |
483 | } |
484 | ||
485 | FOREACH_DIRENT(de, d, return -errno) { | |
486 | struct Session *s; | |
20263082 | 487 | |
9444b1f2 | 488 | if (!dirent_is_file(de)) |
14c3baca LP |
489 | continue; |
490 | ||
9444b1f2 | 491 | k = manager_add_session(m, de->d_name, &s); |
20263082 | 492 | if (k < 0) { |
20fff3de | 493 | r = log_warning_errno(k, "Failed to add session by file name %s, ignoring: %m", de->d_name); |
20263082 LP |
494 | continue; |
495 | } | |
496 | ||
9444b1f2 | 497 | session_add_to_gc_queue(s); |
20263082 | 498 | |
9444b1f2 | 499 | k = session_load(s); |
20263082 LP |
500 | if (k < 0) |
501 | r = k; | |
502 | } | |
503 | ||
efc19ee4 LP |
504 | /* We might be restarted and PID1 could have sent us back the session device fds we previously |
505 | * saved. */ | |
506 | (void) manager_attach_fds(m); | |
aed24c4c | 507 | |
20263082 LP |
508 | return r; |
509 | } | |
510 | ||
9588bc32 | 511 | static int manager_enumerate_inhibitors(Manager *m) { |
9444b1f2 | 512 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
513 | struct dirent *de; |
514 | int r = 0; | |
515 | ||
516 | assert(m); | |
517 | ||
9444b1f2 | 518 | d = opendir("/run/systemd/inhibit"); |
20263082 LP |
519 | if (!d) { |
520 | if (errno == ENOENT) | |
521 | return 0; | |
522 | ||
e1427b13 | 523 | return log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); |
20263082 LP |
524 | } |
525 | ||
9444b1f2 | 526 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 527 | int k; |
9444b1f2 | 528 | Inhibitor *i; |
20263082 LP |
529 | |
530 | if (!dirent_is_file(de)) | |
531 | continue; | |
532 | ||
9444b1f2 LP |
533 | k = manager_add_inhibitor(m, de->d_name, &i); |
534 | if (k < 0) { | |
20fff3de | 535 | r = log_warning_errno(k, "Couldn't add inhibitor %s, ignoring: %m", de->d_name); |
20263082 LP |
536 | continue; |
537 | } | |
538 | ||
9444b1f2 | 539 | k = inhibitor_load(i); |
20263082 LP |
540 | if (k < 0) |
541 | r = k; | |
542 | } | |
543 | ||
20263082 LP |
544 | return r; |
545 | } | |
546 | ||
eb968396 | 547 | static int manager_dispatch_seat_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
cc377381 | 548 | Manager *m = userdata; |
20263082 LP |
549 | |
550 | assert(m); | |
eb968396 | 551 | assert(device); |
20263082 | 552 | |
eb968396 | 553 | manager_process_seat_device(m, device); |
7b77ed8c | 554 | return 0; |
30ed21ce LP |
555 | } |
556 | ||
eb968396 | 557 | static int manager_dispatch_device_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
cc377381 | 558 | Manager *m = userdata; |
718d006a DH |
559 | |
560 | assert(m); | |
eb968396 | 561 | assert(device); |
718d006a | 562 | |
eb968396 | 563 | manager_process_seat_device(m, device); |
7b77ed8c | 564 | return 0; |
718d006a DH |
565 | } |
566 | ||
eb968396 | 567 | static int manager_dispatch_vcsa_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
cc377381 | 568 | Manager *m = userdata; |
91bd2c34 | 569 | const char *name; |
30ed21ce LP |
570 | |
571 | assert(m); | |
eb968396 | 572 | assert(device); |
30ed21ce LP |
573 | |
574 | /* Whenever a VCSA device is removed try to reallocate our | |
575 | * VTs, to make sure our auto VTs never go away. */ | |
576 | ||
eb968396 | 577 | if (sd_device_get_sysname(device, &name) >= 0 && |
4f209af7 | 578 | startswith(name, "vcsa") && |
91bd2c34 | 579 | device_for_action(device, DEVICE_ACTION_REMOVE)) |
7b77ed8c | 580 | seat_preallocate_vts(m->seat0); |
30ed21ce | 581 | |
7b77ed8c | 582 | return 0; |
20263082 LP |
583 | } |
584 | ||
eb968396 | 585 | static int manager_dispatch_button_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
cc377381 | 586 | Manager *m = userdata; |
069cfc85 LP |
587 | |
588 | assert(m); | |
eb968396 | 589 | assert(device); |
069cfc85 | 590 | |
eb968396 | 591 | manager_process_button_device(m, device); |
7b77ed8c | 592 | return 0; |
069cfc85 LP |
593 | } |
594 | ||
cc377381 LP |
595 | static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
596 | Manager *m = userdata; | |
597 | ||
20263082 | 598 | assert(m); |
92432fcc | 599 | assert(m->seat0); |
cc377381 | 600 | assert(m->console_active_fd == fd); |
20263082 | 601 | |
92432fcc | 602 | seat_read_active_vt(m->seat0); |
20263082 LP |
603 | return 0; |
604 | } | |
605 | ||
98a77df5 LP |
606 | static int manager_reserve_vt(Manager *m) { |
607 | _cleanup_free_ char *p = NULL; | |
608 | ||
609 | assert(m); | |
610 | ||
611 | if (m->reserve_vt <= 0) | |
612 | return 0; | |
613 | ||
614 | if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0) | |
615 | return log_oom(); | |
616 | ||
617 | m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
618 | if (m->reserve_vt_fd < 0) { | |
d4d882e5 LP |
619 | |
620 | /* Don't complain on VT-less systems */ | |
621 | if (errno != ENOENT) | |
56f64d95 | 622 | log_warning_errno(errno, "Failed to pin reserved VT: %m"); |
98a77df5 LP |
623 | return -errno; |
624 | } | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
cc377381 | 629 | static int manager_connect_bus(Manager *m) { |
cc377381 | 630 | int r; |
31b79c2b | 631 | |
cc377381 LP |
632 | assert(m); |
633 | assert(!m->bus); | |
31b79c2b | 634 | |
76b54375 | 635 | r = sd_bus_default_system(&m->bus); |
f647962d MS |
636 | if (r < 0) |
637 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
31b79c2b | 638 | |
c2b178d3 | 639 | r = bus_add_implementation(m->bus, &manager_object, m); |
f647962d | 640 | if (r < 0) |
c2b178d3 | 641 | return r; |
20263082 | 642 | |
c2b178d3 | 643 | r = bus_log_control_api_register(m->bus); |
f647962d | 644 | if (r < 0) |
c2b178d3 | 645 | return r; |
20263082 | 646 | |
5d990cc5 | 647 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "JobRemoved", match_job_removed, NULL, m); |
f647962d | 648 | if (r < 0) |
75152a4d LP |
649 | return log_error_errno(r, "Failed to request match for JobRemoved: %m"); |
650 | ||
5d990cc5 | 651 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "UnitRemoved", match_unit_removed, NULL, m); |
f647962d | 652 | if (r < 0) |
75152a4d LP |
653 | return log_error_errno(r, "Failed to request match for UnitRemoved: %m"); |
654 | ||
655 | r = sd_bus_match_signal_async( | |
656 | m->bus, | |
657 | NULL, | |
658 | "org.freedesktop.systemd1", | |
659 | NULL, | |
660 | "org.freedesktop.DBus.Properties", | |
661 | "PropertiesChanged", | |
662 | match_properties_changed, NULL, m); | |
f647962d | 663 | if (r < 0) |
75152a4d LP |
664 | return log_error_errno(r, "Failed to request match for PropertiesChanged: %m"); |
665 | ||
5d990cc5 | 666 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "Reloading", match_reloading, NULL, m); |
f647962d | 667 | if (r < 0) |
75152a4d | 668 | return log_error_errno(r, "Failed to request match for Reloading: %m"); |
6797c324 | 669 | |
5d990cc5 | 670 | r = bus_call_method_async(m->bus, NULL, bus_systemd_mgr, "Subscribe", NULL, NULL, NULL); |
31b2cd5d LP |
671 | if (r < 0) |
672 | return log_error_errno(r, "Failed to enable subscription: %m"); | |
20263082 | 673 | |
0c0b9306 | 674 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.login1", 0, NULL, NULL); |
f647962d | 675 | if (r < 0) |
0c0b9306 | 676 | return log_error_errno(r, "Failed to request name: %m"); |
bafd4449 | 677 | |
e11544a8 | 678 | r = sd_bus_attach_event(m->bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
f647962d MS |
679 | if (r < 0) |
680 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
20263082 | 681 | |
20263082 | 682 | return 0; |
20263082 LP |
683 | } |
684 | ||
92683ad2 DH |
685 | static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) { |
686 | Manager *m = data; | |
687 | Session *active, *iter; | |
688 | ||
689 | /* | |
690 | * We got a VT-switch signal and we have to acknowledge it immediately. | |
691 | * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately, | |
692 | * old user-space might run multiple sessions on a single VT, *sigh*. | |
693 | * Therefore, we have to iterate all sessions and find one with a vtfd | |
694 | * on the requested VT. | |
695 | * As only VTs with active controllers have VT_PROCESS set, our current | |
696 | * notion of the active VT might be wrong (for instance if the switch | |
697 | * happens while we setup VT_PROCESS). Therefore, read the current VT | |
698 | * first and then use s->active->vtnr as reference. Note that this is | |
699 | * not racy, as no further VT-switch can happen as long as we're in | |
700 | * synchronous VT_PROCESS mode. | |
701 | */ | |
702 | ||
703 | assert(m->seat0); | |
704 | seat_read_active_vt(m->seat0); | |
705 | ||
706 | active = m->seat0->active; | |
707 | if (!active || active->vtnr < 1) { | |
adb8688b FB |
708 | _cleanup_close_ int fd = -1; |
709 | int r; | |
710 | ||
711 | /* We are requested to acknowledge the VT-switch signal by the kernel but | |
712 | * there's no registered sessions for the current VT. Normally this | |
713 | * shouldn't happen but something wrong might have happened when we tried | |
714 | * to release the VT. Better be safe than sorry, and try to release the VT | |
715 | * one more time otherwise the user will be locked with the current VT. */ | |
716 | ||
717 | log_warning("Received VT_PROCESS signal without a registered session, restoring VT."); | |
718 | ||
719 | /* At this point we only have the kernel mapping for referring to the | |
720 | * current VT. */ | |
721 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
722 | if (fd < 0) { | |
723 | log_warning_errno(fd, "Failed to open, ignoring: %m"); | |
724 | return 0; | |
725 | } | |
726 | ||
727 | r = vt_release(fd, true); | |
728 | if (r < 0) | |
729 | log_warning_errno(r, "Failed to release VT, ignoring: %m"); | |
730 | ||
92683ad2 DH |
731 | return 0; |
732 | } | |
733 | ||
734 | if (active->vtfd >= 0) { | |
2ec3ff66 | 735 | session_leave_vt(active); |
92683ad2 DH |
736 | } else { |
737 | LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) { | |
738 | if (iter->vtnr == active->vtnr && iter->vtfd >= 0) { | |
2ec3ff66 | 739 | session_leave_vt(iter); |
92683ad2 DH |
740 | break; |
741 | } | |
742 | } | |
743 | } | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
20263082 | 748 | static int manager_connect_console(Manager *m) { |
cc377381 | 749 | int r; |
20263082 LP |
750 | |
751 | assert(m); | |
752 | assert(m->console_active_fd < 0); | |
753 | ||
0b6d55ca LP |
754 | /* On certain systems (such as S390, Xen, and containers) /dev/tty0 does not exist (as there is no VC), so |
755 | * don't fail if we can't open it. */ | |
756 | ||
cc377381 | 757 | if (access("/dev/tty0", F_OK) < 0) |
74afee9c | 758 | return 0; |
74afee9c | 759 | |
20263082 LP |
760 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); |
761 | if (m->console_active_fd < 0) { | |
cdc564d2 | 762 | |
0b6d55ca LP |
763 | /* On some systems /dev/tty0 may exist even though /sys/class/tty/tty0 does not. These are broken, but |
764 | * common. Let's complain but continue anyway. */ | |
765 | if (errno == ENOENT) { | |
766 | log_warning_errno(errno, "System has /dev/tty0 but not /sys/class/tty/tty0/active which is broken, ignoring: %m"); | |
cdc564d2 | 767 | return 0; |
0b6d55ca | 768 | } |
cdc564d2 | 769 | |
e1427b13 | 770 | return log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); |
20263082 LP |
771 | } |
772 | ||
151b9b96 | 773 | r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); |
0b6d55ca LP |
774 | if (r < 0) |
775 | return log_error_errno(r, "Failed to watch foreground console: %m"); | |
20263082 | 776 | |
92683ad2 DH |
777 | /* |
778 | * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used | |
779 | * as VT-acquire signal. We ignore any acquire-events (yes, we still | |
780 | * have to provide a valid signal-number for it!) and acknowledge all | |
781 | * release events immediately. | |
782 | */ | |
783 | ||
baaa35ad ZJS |
784 | if (SIGRTMIN + 1 > SIGRTMAX) |
785 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
786 | "Not enough real-time signals available: %u-%u", | |
787 | SIGRTMIN, SIGRTMAX); | |
92683ad2 | 788 | |
72c0a2c2 LP |
789 | assert_se(ignore_signals(SIGRTMIN + 1, -1) >= 0); |
790 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0); | |
92683ad2 DH |
791 | |
792 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); | |
793 | if (r < 0) | |
0b6d55ca | 794 | return log_error_errno(r, "Failed to subscribe to signal: %m"); |
92683ad2 | 795 | |
20263082 LP |
796 | return 0; |
797 | } | |
798 | ||
799 | static int manager_connect_udev(Manager *m) { | |
14c3baca | 800 | int r; |
20263082 LP |
801 | |
802 | assert(m); | |
eb968396 YW |
803 | assert(!m->device_seat_monitor); |
804 | assert(!m->device_monitor); | |
805 | assert(!m->device_vcsa_monitor); | |
806 | assert(!m->device_button_monitor); | |
20263082 | 807 | |
eb968396 YW |
808 | r = sd_device_monitor_new(&m->device_seat_monitor); |
809 | if (r < 0) | |
810 | return r; | |
20263082 | 811 | |
eb968396 | 812 | r = sd_device_monitor_filter_add_match_tag(m->device_seat_monitor, "master-of-seat"); |
14c3baca LP |
813 | if (r < 0) |
814 | return r; | |
20263082 | 815 | |
deb2b734 | 816 | r = sd_device_monitor_attach_event(m->device_seat_monitor, m->event); |
14c3baca LP |
817 | if (r < 0) |
818 | return r; | |
20263082 | 819 | |
deb2b734 | 820 | r = sd_device_monitor_start(m->device_seat_monitor, manager_dispatch_seat_udev, m); |
cc377381 LP |
821 | if (r < 0) |
822 | return r; | |
069cfc85 | 823 | |
deb2b734 YW |
824 | (void) sd_event_source_set_description(sd_device_monitor_get_event_source(m->device_seat_monitor), "logind-seat-monitor"); |
825 | ||
eb968396 YW |
826 | r = sd_device_monitor_new(&m->device_monitor); |
827 | if (r < 0) | |
828 | return r; | |
718d006a | 829 | |
eb968396 | 830 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "input", NULL); |
718d006a DH |
831 | if (r < 0) |
832 | return r; | |
833 | ||
eb968396 | 834 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "graphics", NULL); |
718d006a DH |
835 | if (r < 0) |
836 | return r; | |
837 | ||
eb968396 | 838 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "drm", NULL); |
718d006a DH |
839 | if (r < 0) |
840 | return r; | |
841 | ||
deb2b734 | 842 | r = sd_device_monitor_attach_event(m->device_monitor, m->event); |
718d006a DH |
843 | if (r < 0) |
844 | return r; | |
845 | ||
deb2b734 | 846 | r = sd_device_monitor_start(m->device_monitor, manager_dispatch_device_udev, m); |
cc377381 LP |
847 | if (r < 0) |
848 | return r; | |
718d006a | 849 | |
deb2b734 YW |
850 | (void) sd_event_source_set_description(sd_device_monitor_get_event_source(m->device_monitor), "logind-device-monitor"); |
851 | ||
6de0e0e5 | 852 | /* Don't watch keys if nobody cares */ |
e25937a3 | 853 | if (!manager_all_buttons_ignored(m)) { |
eb968396 YW |
854 | r = sd_device_monitor_new(&m->device_button_monitor); |
855 | if (r < 0) | |
856 | return r; | |
069cfc85 | 857 | |
eb968396 | 858 | r = sd_device_monitor_filter_add_match_tag(m->device_button_monitor, "power-switch"); |
6de0e0e5 LP |
859 | if (r < 0) |
860 | return r; | |
069cfc85 | 861 | |
eb968396 | 862 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_button_monitor, "input", NULL); |
6de0e0e5 LP |
863 | if (r < 0) |
864 | return r; | |
069cfc85 | 865 | |
deb2b734 | 866 | r = sd_device_monitor_attach_event(m->device_button_monitor, m->event); |
6de0e0e5 LP |
867 | if (r < 0) |
868 | return r; | |
069cfc85 | 869 | |
deb2b734 | 870 | r = sd_device_monitor_start(m->device_button_monitor, manager_dispatch_button_udev, m); |
cc377381 LP |
871 | if (r < 0) |
872 | return r; | |
deb2b734 YW |
873 | |
874 | (void) sd_event_source_set_description(sd_device_monitor_get_event_source(m->device_button_monitor), "logind-button-monitor"); | |
6de0e0e5 | 875 | } |
069cfc85 | 876 | |
976c088a | 877 | /* Don't bother watching VCSA devices, if nobody cares */ |
6de0e0e5 | 878 | if (m->n_autovts > 0 && m->console_active_fd >= 0) { |
30ed21ce | 879 | |
eb968396 YW |
880 | r = sd_device_monitor_new(&m->device_vcsa_monitor); |
881 | if (r < 0) | |
882 | return r; | |
30ed21ce | 883 | |
eb968396 | 884 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_vcsa_monitor, "vc", NULL); |
6de0e0e5 LP |
885 | if (r < 0) |
886 | return r; | |
30ed21ce | 887 | |
deb2b734 | 888 | r = sd_device_monitor_attach_event(m->device_vcsa_monitor, m->event); |
6de0e0e5 LP |
889 | if (r < 0) |
890 | return r; | |
30ed21ce | 891 | |
deb2b734 | 892 | r = sd_device_monitor_start(m->device_vcsa_monitor, manager_dispatch_vcsa_udev, m); |
cc377381 LP |
893 | if (r < 0) |
894 | return r; | |
deb2b734 YW |
895 | |
896 | (void) sd_event_source_set_description(sd_device_monitor_get_event_source(m->device_vcsa_monitor), "logind-vcsa-monitor"); | |
6de0e0e5 | 897 | } |
20263082 LP |
898 | |
899 | return 0; | |
900 | } | |
901 | ||
905f0a39 | 902 | static void manager_gc(Manager *m, bool drop_not_started) { |
14c3baca LP |
903 | Seat *seat; |
904 | Session *session; | |
905 | User *user; | |
906 | ||
907 | assert(m); | |
908 | ||
909 | while ((seat = m->seat_gc_queue)) { | |
71fda00f | 910 | LIST_REMOVE(gc_queue, m->seat_gc_queue, seat); |
14c3baca LP |
911 | seat->in_gc_queue = false; |
912 | ||
5c093a23 | 913 | if (seat_may_gc(seat, drop_not_started)) { |
9bb69af4 | 914 | seat_stop(seat, false); |
14c3baca LP |
915 | seat_free(seat); |
916 | } | |
917 | } | |
918 | ||
919 | while ((session = m->session_gc_queue)) { | |
71fda00f | 920 | LIST_REMOVE(gc_queue, m->session_gc_queue, session); |
14c3baca LP |
921 | session->in_gc_queue = false; |
922 | ||
5f41d1f1 | 923 | /* First, if we are not closing yet, initiate stopping */ |
5c093a23 | 924 | if (session_may_gc(session, drop_not_started) && |
5f41d1f1 | 925 | session_get_state(session) != SESSION_CLOSING) |
75bbdf47 | 926 | (void) session_stop(session, false); |
5f41d1f1 | 927 | |
491ac9f2 LP |
928 | /* Normally, this should make the session referenced |
929 | * again, if it doesn't then let's get rid of it | |
5f41d1f1 | 930 | * immediately */ |
5c093a23 | 931 | if (session_may_gc(session, drop_not_started)) { |
75bbdf47 | 932 | (void) session_finalize(session); |
14c3baca LP |
933 | session_free(session); |
934 | } | |
935 | } | |
936 | ||
937 | while ((user = m->user_gc_queue)) { | |
71fda00f | 938 | LIST_REMOVE(gc_queue, m->user_gc_queue, user); |
14c3baca LP |
939 | user->in_gc_queue = false; |
940 | ||
b58b227a | 941 | /* First step: queue stop jobs */ |
5c093a23 | 942 | if (user_may_gc(user, drop_not_started)) |
75bbdf47 | 943 | (void) user_stop(user, false); |
5f41d1f1 | 944 | |
b58b227a | 945 | /* Second step: finalize user */ |
5c093a23 | 946 | if (user_may_gc(user, drop_not_started)) { |
75bbdf47 | 947 | (void) user_finalize(user); |
14c3baca LP |
948 | user_free(user); |
949 | } | |
950 | } | |
951 | } | |
952 | ||
cc377381 LP |
953 | static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { |
954 | Manager *m = userdata; | |
23406ce5 | 955 | struct dual_timestamp since; |
cc377381 | 956 | usec_t n, elapse; |
23406ce5 | 957 | int r; |
23406ce5 LP |
958 | |
959 | assert(m); | |
960 | ||
961 | if (m->idle_action == HANDLE_IGNORE || | |
cc377381 LP |
962 | m->idle_action_usec <= 0) |
963 | return 0; | |
23406ce5 | 964 | |
23406ce5 LP |
965 | n = now(CLOCK_MONOTONIC); |
966 | ||
967 | r = manager_get_idle_hint(m, &since); | |
968 | if (r <= 0) | |
39ccc87c | 969 | /* Not idle. Let's check if after a timeout it might be idle then. */ |
cc377381 | 970 | elapse = n + m->idle_action_usec; |
23406ce5 LP |
971 | else { |
972 | /* Idle! Let's see if it's time to do something, or if | |
973 | * we shall sleep for longer. */ | |
974 | ||
975 | if (n >= since.monotonic + m->idle_action_usec && | |
976 | (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) { | |
b81b40d4 | 977 | log_info("System idle. Doing %s operation.", handle_action_to_string(m->idle_action)); |
23406ce5 LP |
978 | |
979 | manager_handle_action(m, 0, m->idle_action, false, false); | |
980 | m->idle_action_not_before_usec = n; | |
981 | } | |
982 | ||
cc377381 | 983 | elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; |
23406ce5 LP |
984 | } |
985 | ||
cc377381 | 986 | if (!m->idle_action_event_source) { |
23406ce5 | 987 | |
6a0f1f6d LP |
988 | r = sd_event_add_time( |
989 | m->event, | |
990 | &m->idle_action_event_source, | |
991 | CLOCK_MONOTONIC, | |
992 | elapse, USEC_PER_SEC*30, | |
993 | manager_dispatch_idle_action, m); | |
f647962d MS |
994 | if (r < 0) |
995 | return log_error_errno(r, "Failed to add idle event source: %m"); | |
23406ce5 | 996 | |
718db961 | 997 | r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); |
f647962d MS |
998 | if (r < 0) |
999 | return log_error_errno(r, "Failed to set idle event source priority: %m"); | |
cc377381 LP |
1000 | } else { |
1001 | r = sd_event_source_set_time(m->idle_action_event_source, elapse); | |
f647962d MS |
1002 | if (r < 0) |
1003 | return log_error_errno(r, "Failed to set idle event timer: %m"); | |
23406ce5 | 1004 | |
cc377381 | 1005 | r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); |
f647962d MS |
1006 | if (r < 0) |
1007 | return log_error_errno(r, "Failed to enable idle event timer: %m"); | |
23406ce5 LP |
1008 | } |
1009 | ||
1010 | return 0; | |
23406ce5 | 1011 | } |
cc377381 | 1012 | |
a2ed7077 ZJS |
1013 | static int manager_dispatch_reload_signal(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { |
1014 | Manager *m = userdata; | |
1015 | int r; | |
1016 | ||
1017 | manager_reset_config(m); | |
1018 | r = manager_parse_config_file(m); | |
1019 | if (r < 0) | |
1020 | log_warning_errno(r, "Failed to parse config file, using defaults: %m"); | |
1021 | else | |
1022 | log_info("Config file reloaded."); | |
1023 | ||
1024 | return 0; | |
1025 | } | |
1026 | ||
905f0a39 | 1027 | static int manager_startup(Manager *m) { |
20263082 | 1028 | int r; |
14c3baca LP |
1029 | Seat *seat; |
1030 | Session *session; | |
1031 | User *user; | |
ed4ba7e4 | 1032 | Button *button; |
f8e2fb7b | 1033 | Inhibitor *inhibitor; |
14c3baca | 1034 | Iterator i; |
20263082 LP |
1035 | |
1036 | assert(m); | |
20263082 | 1037 | |
a2ed7077 ZJS |
1038 | r = sd_event_add_signal(m->event, NULL, SIGHUP, manager_dispatch_reload_signal, m); |
1039 | if (r < 0) | |
1040 | return log_error_errno(r, "Failed to register SIGHUP handler: %m"); | |
1041 | ||
3d0ef5c7 LP |
1042 | /* Connect to utmp */ |
1043 | manager_connect_utmp(m); | |
1044 | ||
976c088a LP |
1045 | /* Connect to console */ |
1046 | r = manager_connect_console(m); | |
20263082 LP |
1047 | if (r < 0) |
1048 | return r; | |
1049 | ||
976c088a LP |
1050 | /* Connect to udev */ |
1051 | r = manager_connect_udev(m); | |
f647962d MS |
1052 | if (r < 0) |
1053 | return log_error_errno(r, "Failed to create udev watchers: %m"); | |
20263082 LP |
1054 | |
1055 | /* Connect to the bus */ | |
1056 | r = manager_connect_bus(m); | |
1057 | if (r < 0) | |
1058 | return r; | |
1059 | ||
14c3baca | 1060 | /* Instantiate magic seat 0 */ |
92432fcc | 1061 | r = manager_add_seat(m, "seat0", &m->seat0); |
f647962d MS |
1062 | if (r < 0) |
1063 | return log_error_errno(r, "Failed to add seat0: %m"); | |
14c3baca | 1064 | |
9d10cbee | 1065 | r = manager_set_lid_switch_ignore(m, 0 + m->holdoff_timeout_usec); |
f9cd6be1 | 1066 | if (r < 0) |
da927ba9 | 1067 | log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); |
f9cd6be1 | 1068 | |
20263082 | 1069 | /* Deserialize state */ |
042f5988 ZJS |
1070 | r = manager_enumerate_devices(m); |
1071 | if (r < 0) | |
da927ba9 | 1072 | log_warning_errno(r, "Device enumeration failed: %m"); |
042f5988 ZJS |
1073 | |
1074 | r = manager_enumerate_seats(m); | |
1075 | if (r < 0) | |
da927ba9 | 1076 | log_warning_errno(r, "Seat enumeration failed: %m"); |
042f5988 ZJS |
1077 | |
1078 | r = manager_enumerate_users(m); | |
1079 | if (r < 0) | |
da927ba9 | 1080 | log_warning_errno(r, "User enumeration failed: %m"); |
042f5988 ZJS |
1081 | |
1082 | r = manager_enumerate_sessions(m); | |
1083 | if (r < 0) | |
da927ba9 | 1084 | log_warning_errno(r, "Session enumeration failed: %m"); |
042f5988 ZJS |
1085 | |
1086 | r = manager_enumerate_inhibitors(m); | |
1087 | if (r < 0) | |
da927ba9 | 1088 | log_warning_errno(r, "Inhibitor enumeration failed: %m"); |
042f5988 ZJS |
1089 | |
1090 | r = manager_enumerate_buttons(m); | |
1091 | if (r < 0) | |
da927ba9 | 1092 | log_warning_errno(r, "Button enumeration failed: %m"); |
20263082 | 1093 | |
4a4b033f LP |
1094 | /* Remove stale objects before we start them */ |
1095 | manager_gc(m, false); | |
1096 | ||
98a77df5 LP |
1097 | /* Reserve the special reserved VT */ |
1098 | manager_reserve_vt(m); | |
1099 | ||
3d0ef5c7 LP |
1100 | /* Read in utmp if it exists */ |
1101 | manager_read_utmp(m); | |
1102 | ||
14c3baca LP |
1103 | /* And start everything */ |
1104 | HASHMAP_FOREACH(seat, m->seats, i) | |
75bbdf47 | 1105 | (void) seat_start(seat); |
14c3baca LP |
1106 | |
1107 | HASHMAP_FOREACH(user, m->users, i) | |
75bbdf47 | 1108 | (void) user_start(user); |
14c3baca LP |
1109 | |
1110 | HASHMAP_FOREACH(session, m->sessions, i) | |
25a1ab4e | 1111 | (void) session_start(session, NULL, NULL); |
20263082 | 1112 | |
11eae36d LP |
1113 | HASHMAP_FOREACH(inhibitor, m->inhibitors, i) { |
1114 | (void) inhibitor_start(inhibitor); | |
1115 | ||
1116 | /* Let's see if the inhibitor is dead now, then remove it */ | |
1117 | if (inhibitor_is_orphan(inhibitor)) { | |
1118 | inhibitor_stop(inhibitor); | |
1119 | inhibitor_free(inhibitor); | |
1120 | } | |
1121 | } | |
f8e2fb7b | 1122 | |
ed4ba7e4 | 1123 | HASHMAP_FOREACH(button, m->buttons, i) |
2d62c530 | 1124 | button_check_switches(button); |
ed4ba7e4 | 1125 | |
cc377381 | 1126 | manager_dispatch_idle_action(NULL, 0, m); |
23406ce5 | 1127 | |
20263082 LP |
1128 | return 0; |
1129 | } | |
1130 | ||
905f0a39 | 1131 | static int manager_run(Manager *m) { |
cc377381 LP |
1132 | int r; |
1133 | ||
20263082 LP |
1134 | assert(m); |
1135 | ||
1136 | for (;;) { | |
cc377381 LP |
1137 | r = sd_event_get_state(m->event); |
1138 | if (r < 0) | |
1139 | return r; | |
1140 | if (r == SD_EVENT_FINISHED) | |
1141 | return 0; | |
20263082 | 1142 | |
4a4b033f | 1143 | manager_gc(m, true); |
14c3baca | 1144 | |
418b22b8 DM |
1145 | r = manager_dispatch_delayed(m, false); |
1146 | if (r < 0) | |
1147 | return r; | |
1148 | if (r > 0) | |
1149 | continue; | |
1150 | ||
c0f32805 | 1151 | r = sd_event_run(m->event, (uint64_t) -1); |
cc377381 LP |
1152 | if (r < 0) |
1153 | return r; | |
20263082 | 1154 | } |
20263082 LP |
1155 | } |
1156 | ||
c11cfa28 | 1157 | static int run(int argc, char *argv[]) { |
23462168 | 1158 | _cleanup_(manager_unrefp) Manager *m = NULL; |
5eda94dd | 1159 | int r; |
20263082 | 1160 | |
3eff4208 | 1161 | log_set_facility(LOG_AUTH); |
6bf3c61c | 1162 | log_setup_service(); |
20263082 | 1163 | |
fc021a5b ZJS |
1164 | r = service_parse_argv("systemd-logind.service", |
1165 | "Manager for user logins and devices and privileged operations.", | |
d4cc0edf ZJS |
1166 | BUS_IMPLEMENTATIONS(&manager_object, |
1167 | &log_control_object), | |
fc021a5b ZJS |
1168 | argc, argv); |
1169 | if (r <= 0) | |
1170 | return r; | |
4c12626c | 1171 | |
fc021a5b | 1172 | umask(0022); |
20263082 | 1173 | |
c3dacc8b | 1174 | r = mac_selinux_init(); |
c11cfa28 | 1175 | if (r < 0) |
a9ba0e32 | 1176 | return r; |
4b51966c | 1177 | |
90b8a009 LP |
1178 | /* Always create the directories people can create inotify watches in. Note that some applications might check |
1179 | * for the existence of /run/systemd/seats/ to determine whether logind is available, so please always make | |
1180 | * sure these directories are created early on and unconditionally. */ | |
1181 | (void) mkdir_label("/run/systemd/seats", 0755); | |
1182 | (void) mkdir_label("/run/systemd/users", 0755); | |
1183 | (void) mkdir_label("/run/systemd/sessions", 0755); | |
bb27ff66 | 1184 | |
2a66c2a1 | 1185 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGHUP, SIGTERM, SIGINT, SIGCHLD, -1) >= 0); |
fcfa765d | 1186 | |
23462168 | 1187 | r = manager_new(&m); |
c11cfa28 ZJS |
1188 | if (r < 0) |
1189 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
20263082 | 1190 | |
23462168 | 1191 | (void) manager_parse_config_file(m); |
193197e8 | 1192 | |
20263082 | 1193 | r = manager_startup(m); |
c11cfa28 ZJS |
1194 | if (r < 0) |
1195 | return log_error_errno(r, "Failed to fully start up daemon: %m"); | |
20263082 | 1196 | |
df0ff127 | 1197 | log_debug("systemd-logind running as pid "PID_FMT, getpid_cached()); |
23462168 LP |
1198 | (void) sd_notify(false, |
1199 | "READY=1\n" | |
1200 | "STATUS=Processing requests..."); | |
e6960940 | 1201 | |
20263082 LP |
1202 | r = manager_run(m); |
1203 | ||
df0ff127 | 1204 | log_debug("systemd-logind stopped as pid "PID_FMT, getpid_cached()); |
23462168 LP |
1205 | (void) sd_notify(false, |
1206 | "STOPPING=1\n" | |
1207 | "STATUS=Shutting down..."); | |
20263082 | 1208 | |
c11cfa28 | 1209 | return r; |
20263082 | 1210 | } |
c11cfa28 ZJS |
1211 | |
1212 | DEFINE_MAIN_FUNCTION(run); |