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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
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" |
9b71e4ab | 13 | #include "bus-locator.h" |
ac9f55ed | 14 | #include "bus-log-control-api.h" |
269e4d2d | 15 | #include "bus-polkit.h" |
dccca82b | 16 | #include "cgroup-util.h" |
92e1a209 | 17 | #include "common-signal.h" |
28db6fbf | 18 | #include "constants.h" |
21fe744c | 19 | #include "daemon-util.h" |
8437c059 | 20 | #include "device-util.h" |
a0956174 | 21 | #include "dirent-util.h" |
f38e89c2 | 22 | #include "escape.h" |
3ffd4af2 | 23 | #include "fd-util.h" |
f97b34a6 | 24 | #include "format-util.h" |
af229d7a | 25 | #include "fs-util.h" |
6ecda0fb LP |
26 | #include "logind-dbus.h" |
27 | #include "logind-seat-dbus.h" | |
28 | #include "logind-session-dbus.h" | |
29 | #include "logind-user-dbus.h" | |
3ffd4af2 | 30 | #include "logind.h" |
5e332028 | 31 | #include "main-func.h" |
35cd0ba5 | 32 | #include "mkdir-label.h" |
1bef256c | 33 | #include "parse-util.h" |
dccca82b | 34 | #include "process-util.h" |
4b51966c | 35 | #include "selinux-util.h" |
fc021a5b | 36 | #include "service-util.h" |
24882e06 | 37 | #include "signal-util.h" |
07630cea | 38 | #include "strv.h" |
adb8688b | 39 | #include "terminal-util.h" |
91bd2c34 | 40 | #include "udev-util.h" |
ac4e03d4 | 41 | #include "user-util.h" |
20263082 | 42 | |
5ce8ce90 DT |
43 | static Manager* manager_free(Manager *m); |
44 | DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); | |
905f0a39 | 45 | |
23462168 | 46 | static int manager_new(Manager **ret) { |
5ce8ce90 | 47 | _cleanup_(manager_freep) Manager *m = NULL; |
a2ed7077 ZJS |
48 | int r; |
49 | ||
23462168 LP |
50 | assert(ret); |
51 | ||
b25ba6cf | 52 | m = new(Manager, 1); |
a2ed7077 | 53 | if (!m) |
23462168 | 54 | return -ENOMEM; |
a2ed7077 | 55 | |
b25ba6cf | 56 | *m = (Manager) { |
254d1313 ZJS |
57 | .console_active_fd = -EBADF, |
58 | .reserve_vt_fd = -EBADF, | |
cdf37062 | 59 | .enable_wall_messages = true, |
e83b8b6b | 60 | .idle_action_not_before_usec = now(CLOCK_MONOTONIC), |
b25ba6cf | 61 | }; |
a2ed7077 | 62 | |
d5099efc MS |
63 | m->devices = hashmap_new(&string_hash_ops); |
64 | m->seats = hashmap_new(&string_hash_ops); | |
65 | m->sessions = hashmap_new(&string_hash_ops); | |
238794b1 | 66 | m->sessions_by_leader = hashmap_new(NULL); |
d5099efc MS |
67 | m->users = hashmap_new(NULL); |
68 | m->inhibitors = hashmap_new(&string_hash_ops); | |
69 | m->buttons = hashmap_new(&string_hash_ops); | |
f8e2fb7b | 70 | |
d5099efc MS |
71 | m->user_units = hashmap_new(&string_hash_ops); |
72 | m->session_units = hashmap_new(&string_hash_ops); | |
8c8c4351 | 73 | |
238794b1 | 74 | if (!m->devices || !m->seats || !m->sessions || !m->sessions_by_leader || !m->users || !m->inhibitors || !m->buttons || !m->user_units || !m->session_units) |
23462168 | 75 | return -ENOMEM; |
25d93491 | 76 | |
afc6adb5 | 77 | r = sd_event_default(&m->event); |
ed4ba7e4 | 78 | if (r < 0) |
23462168 | 79 | return r; |
cc377381 | 80 | |
fcfa765d LP |
81 | r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL); |
82 | if (r < 0) | |
83 | return r; | |
84 | ||
85 | r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL); | |
86 | if (r < 0) | |
87 | return r; | |
88 | ||
92e1a209 LP |
89 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN+18, sigrtmin18_handler, NULL); |
90 | if (r < 0) | |
91 | return r; | |
92 | ||
93 | r = sd_event_add_memory_pressure(m->event, NULL, NULL, NULL); | |
94 | if (r < 0) | |
95 | log_debug_errno(r, "Failed allocate memory pressure event source, ignoring: %m"); | |
96 | ||
23462168 | 97 | (void) sd_event_set_watchdog(m->event, true); |
cde93897 | 98 | |
a2ed7077 ZJS |
99 | manager_reset_config(m); |
100 | ||
23462168 LP |
101 | *ret = TAKE_PTR(m); |
102 | return 0; | |
20263082 LP |
103 | } |
104 | ||
5ce8ce90 | 105 | static Manager* manager_free(Manager *m) { |
20263082 LP |
106 | Session *session; |
107 | User *u; | |
108 | Device *d; | |
109 | Seat *s; | |
f8e2fb7b | 110 | Inhibitor *i; |
069cfc85 | 111 | Button *b; |
20263082 | 112 | |
84a4e660 | 113 | if (!m) |
23462168 | 114 | return NULL; |
20263082 LP |
115 | |
116 | while ((session = hashmap_first(m->sessions))) | |
117 | session_free(session); | |
118 | ||
119 | while ((u = hashmap_first(m->users))) | |
120 | user_free(u); | |
121 | ||
122 | while ((d = hashmap_first(m->devices))) | |
123 | device_free(d); | |
124 | ||
125 | while ((s = hashmap_first(m->seats))) | |
126 | seat_free(s); | |
127 | ||
f8e2fb7b LP |
128 | while ((i = hashmap_first(m->inhibitors))) |
129 | inhibitor_free(i); | |
130 | ||
069cfc85 LP |
131 | while ((b = hashmap_first(m->buttons))) |
132 | button_free(b); | |
133 | ||
20263082 LP |
134 | hashmap_free(m->devices); |
135 | hashmap_free(m->seats); | |
f8e2fb7b | 136 | hashmap_free(m->sessions); |
238794b1 | 137 | hashmap_free(m->sessions_by_leader); |
f8e2fb7b LP |
138 | hashmap_free(m->users); |
139 | hashmap_free(m->inhibitors); | |
069cfc85 | 140 | hashmap_free(m->buttons); |
2a66c2a1 | 141 | hashmap_free(m->brightness_writers); |
f8e2fb7b | 142 | |
fb6becb4 LP |
143 | hashmap_free(m->user_units); |
144 | hashmap_free(m->session_units); | |
8c8c4351 | 145 | |
cc377381 | 146 | sd_event_source_unref(m->idle_action_event_source); |
c0f32805 | 147 | sd_event_source_unref(m->inhibit_timeout_source); |
8aaa023a | 148 | sd_event_source_unref(m->scheduled_shutdown_timeout_source); |
867c37f6 | 149 | sd_event_source_unref(m->nologin_timeout_source); |
e2fa5721 | 150 | sd_event_source_unref(m->wall_message_timeout_source); |
cc377381 LP |
151 | |
152 | sd_event_source_unref(m->console_active_event_source); | |
f9cd6be1 | 153 | sd_event_source_unref(m->lid_switch_ignore_event_source); |
20263082 | 154 | |
a520bb66 YA |
155 | sd_event_source_unref(m->reboot_key_long_press_event_source); |
156 | ||
3d0ef5c7 LP |
157 | #if ENABLE_UTMP |
158 | sd_event_source_unref(m->utmp_event_source); | |
159 | #endif | |
160 | ||
03e334a1 | 161 | safe_close(m->console_active_fd); |
20263082 | 162 | |
eb968396 YW |
163 | sd_device_monitor_unref(m->device_seat_monitor); |
164 | sd_device_monitor_unref(m->device_monitor); | |
165 | sd_device_monitor_unref(m->device_vcsa_monitor); | |
166 | sd_device_monitor_unref(m->device_button_monitor); | |
3e044c49 | 167 | |
867c37f6 | 168 | if (m->unlink_nologin) |
af229d7a | 169 | (void) unlink_or_warn("/run/nologin"); |
867c37f6 | 170 | |
36e34057 | 171 | bus_verify_polkit_async_registry_free(m->polkit_registry); |
20263082 | 172 | |
92e31da1 | 173 | sd_bus_flush_close_unref(m->bus); |
cc377381 | 174 | sd_event_unref(m->event); |
20263082 | 175 | |
03e334a1 | 176 | safe_close(m->reserve_vt_fd); |
98a77df5 | 177 | |
193197e8 LP |
178 | strv_free(m->kill_only_users); |
179 | strv_free(m->kill_exclude_users); | |
180 | ||
e2fa5721 DM |
181 | free(m->scheduled_shutdown_tty); |
182 | free(m->wall_message); | |
af9792ac | 183 | free(m->action_job); |
23462168 | 184 | |
d4bd786d | 185 | strv_free(m->efi_boot_loader_entries); |
af2697e8 | 186 | free(m->efi_loader_entry_one_shot); |
d4bd786d | 187 | |
23462168 | 188 | return mfree(m); |
20263082 LP |
189 | } |
190 | ||
9588bc32 | 191 | static int manager_enumerate_devices(Manager *m) { |
4f209af7 | 192 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
14c3baca | 193 | int r; |
20263082 LP |
194 | |
195 | assert(m); | |
196 | ||
197 | /* Loads devices from udev and creates seats for them as | |
198 | * necessary */ | |
199 | ||
4f209af7 | 200 | r = sd_device_enumerator_new(&e); |
14c3baca | 201 | if (r < 0) |
bf5332d2 | 202 | return r; |
20263082 | 203 | |
4f209af7 | 204 | r = sd_device_enumerator_add_match_tag(e, "master-of-seat"); |
e1202047 LP |
205 | if (r < 0) |
206 | return r; | |
207 | ||
8437c059 | 208 | FOREACH_DEVICE(e, d) { |
20263082 LP |
209 | int k; |
210 | ||
bf5332d2 | 211 | k = manager_process_seat_device(m, d); |
20263082 LP |
212 | if (k < 0) |
213 | r = k; | |
214 | } | |
215 | ||
20263082 LP |
216 | return r; |
217 | } | |
218 | ||
9588bc32 | 219 | static int manager_enumerate_buttons(Manager *m) { |
4f209af7 | 220 | _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
069cfc85 LP |
221 | int r; |
222 | ||
223 | assert(m); | |
224 | ||
225 | /* Loads buttons from udev */ | |
226 | ||
e25937a3 | 227 | if (manager_all_buttons_ignored(m)) |
6de0e0e5 LP |
228 | return 0; |
229 | ||
4f209af7 | 230 | r = sd_device_enumerator_new(&e); |
069cfc85 | 231 | if (r < 0) |
bf5332d2 | 232 | return r; |
069cfc85 | 233 | |
4f209af7 | 234 | r = sd_device_enumerator_add_match_subsystem(e, "input", true); |
069cfc85 | 235 | if (r < 0) |
bf5332d2 | 236 | return r; |
069cfc85 | 237 | |
4f209af7 | 238 | r = sd_device_enumerator_add_match_tag(e, "power-switch"); |
e1202047 LP |
239 | if (r < 0) |
240 | return r; | |
241 | ||
8437c059 | 242 | FOREACH_DEVICE(e, d) { |
069cfc85 LP |
243 | int k; |
244 | ||
bf5332d2 | 245 | k = manager_process_button_device(m, d); |
069cfc85 LP |
246 | if (k < 0) |
247 | r = k; | |
248 | } | |
249 | ||
069cfc85 LP |
250 | return r; |
251 | } | |
252 | ||
9588bc32 | 253 | static int manager_enumerate_seats(Manager *m) { |
9444b1f2 | 254 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
255 | int r = 0; |
256 | ||
257 | assert(m); | |
258 | ||
259 | /* This loads data about seats stored on disk, but does not | |
260 | * actually create any seats. Removes data of seats that no | |
261 | * longer exist. */ | |
262 | ||
263 | d = opendir("/run/systemd/seats"); | |
264 | if (!d) { | |
265 | if (errno == ENOENT) | |
266 | return 0; | |
267 | ||
e1427b13 | 268 | return log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); |
20263082 LP |
269 | } |
270 | ||
9444b1f2 | 271 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 LP |
272 | Seat *s; |
273 | int k; | |
274 | ||
275 | if (!dirent_is_file(de)) | |
276 | continue; | |
277 | ||
278 | s = hashmap_get(m->seats, de->d_name); | |
279 | if (!s) { | |
cb51ee7a | 280 | if (unlinkat(dirfd(d), de->d_name, 0) < 0) |
19cdcd5d | 281 | log_warning_errno(errno, "Failed to remove /run/systemd/seats/%s, ignoring: %m", |
111a3aae | 282 | de->d_name); |
20263082 LP |
283 | continue; |
284 | } | |
285 | ||
286 | k = seat_load(s); | |
287 | if (k < 0) | |
288 | r = k; | |
289 | } | |
290 | ||
14c3baca LP |
291 | return r; |
292 | } | |
20263082 | 293 | |
14c3baca | 294 | static int manager_enumerate_linger_users(Manager *m) { |
9444b1f2 | 295 | _cleanup_closedir_ DIR *d = NULL; |
14c3baca LP |
296 | int r = 0; |
297 | ||
9444b1f2 LP |
298 | assert(m); |
299 | ||
14c3baca LP |
300 | d = opendir("/var/lib/systemd/linger"); |
301 | if (!d) { | |
302 | if (errno == ENOENT) | |
303 | return 0; | |
304 | ||
e1427b13 | 305 | return log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); |
14c3baca LP |
306 | } |
307 | ||
9444b1f2 | 308 | FOREACH_DIRENT(de, d, return -errno) { |
14c3baca | 309 | int k; |
f38e89c2 | 310 | _cleanup_free_ char *n = NULL; |
14c3baca LP |
311 | |
312 | if (!dirent_is_file(de)) | |
20263082 | 313 | continue; |
f38e89c2 MK |
314 | k = cunescape(de->d_name, 0, &n); |
315 | if (k < 0) { | |
316 | r = log_warning_errno(k, "Failed to unescape username '%s', ignoring: %m", de->d_name); | |
317 | continue; | |
318 | } | |
319 | k = manager_add_user_by_name(m, n, NULL); | |
20fff3de LP |
320 | if (k < 0) |
321 | r = log_warning_errno(k, "Couldn't add lingering user %s, ignoring: %m", de->d_name); | |
20263082 LP |
322 | } |
323 | ||
20263082 LP |
324 | return r; |
325 | } | |
326 | ||
9588bc32 | 327 | static int manager_enumerate_users(Manager *m) { |
9444b1f2 | 328 | _cleanup_closedir_ DIR *d = NULL; |
14c3baca | 329 | int r, k; |
20263082 LP |
330 | |
331 | assert(m); | |
332 | ||
9444b1f2 | 333 | /* Add lingering users */ |
b3629c7d | 334 | r = manager_enumerate_linger_users(m); |
14c3baca | 335 | |
9444b1f2 | 336 | /* Read in user data stored on disk */ |
20263082 LP |
337 | d = opendir("/run/systemd/users"); |
338 | if (!d) { | |
339 | if (errno == ENOENT) | |
340 | return 0; | |
341 | ||
e1427b13 | 342 | return log_error_errno(errno, "Failed to open /run/systemd/users: %m"); |
20263082 LP |
343 | } |
344 | ||
9444b1f2 | 345 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 346 | User *u; |
ac4e03d4 | 347 | uid_t uid; |
20263082 LP |
348 | |
349 | if (!dirent_is_file(de)) | |
350 | continue; | |
351 | ||
ac4e03d4 JP |
352 | k = parse_uid(de->d_name, &uid); |
353 | if (k < 0) { | |
354 | r = log_warning_errno(k, "Failed to parse filename /run/systemd/users/%s as UID.", de->d_name); | |
355 | continue; | |
356 | } | |
357 | ||
358 | k = manager_add_user_by_uid(m, uid, &u); | |
20263082 | 359 | if (k < 0) { |
20fff3de | 360 | r = log_warning_errno(k, "Failed to add user by file name %s, ignoring: %m", de->d_name); |
20263082 LP |
361 | continue; |
362 | } | |
363 | ||
9444b1f2 LP |
364 | user_add_to_gc_queue(u); |
365 | ||
20263082 LP |
366 | k = user_load(u); |
367 | if (k < 0) | |
368 | r = k; | |
369 | } | |
370 | ||
20263082 LP |
371 | return r; |
372 | } | |
373 | ||
1bef256c AJ |
374 | static int parse_fdname(const char *fdname, char **session_id, dev_t *dev) { |
375 | _cleanup_strv_free_ char **parts = NULL; | |
376 | _cleanup_free_ char *id = NULL; | |
14cb109d | 377 | unsigned major, minor; |
1bef256c AJ |
378 | int r; |
379 | ||
380 | parts = strv_split(fdname, "-"); | |
381 | if (!parts) | |
382 | return -ENOMEM; | |
383 | if (strv_length(parts) != 5) | |
384 | return -EINVAL; | |
385 | ||
386 | if (!streq(parts[0], "session")) | |
387 | return -EINVAL; | |
36591e10 | 388 | |
1bef256c AJ |
389 | id = strdup(parts[1]); |
390 | if (!id) | |
391 | return -ENOMEM; | |
392 | ||
393 | if (!streq(parts[2], "device")) | |
394 | return -EINVAL; | |
36591e10 ZJS |
395 | |
396 | r = safe_atou(parts[3], &major); | |
397 | if (r < 0) | |
398 | return r; | |
399 | r = safe_atou(parts[4], &minor); | |
1bef256c AJ |
400 | if (r < 0) |
401 | return r; | |
402 | ||
403 | *dev = makedev(major, minor); | |
ae2a15bc | 404 | *session_id = TAKE_PTR(id); |
1bef256c AJ |
405 | |
406 | return 0; | |
407 | } | |
408 | ||
efc19ee4 LP |
409 | static int deliver_fd(Manager *m, const char *fdname, int fd) { |
410 | _cleanup_free_ char *id = NULL; | |
411 | SessionDevice *sd; | |
412 | struct stat st; | |
413 | Session *s; | |
414 | dev_t dev; | |
415 | int r; | |
416 | ||
417 | assert(m); | |
418 | assert(fd >= 0); | |
419 | ||
420 | r = parse_fdname(fdname, &id, &dev); | |
421 | if (r < 0) | |
422 | return log_debug_errno(r, "Failed to parse fd name %s: %m", fdname); | |
423 | ||
424 | s = hashmap_get(m->sessions, id); | |
425 | if (!s) | |
426 | /* If the session doesn't exist anymore, the associated session device attached to this fd | |
427 | * doesn't either. Let's simply close this fd. */ | |
428 | return log_debug_errno(SYNTHETIC_ERRNO(ENXIO), "Failed to attach fd for unknown session: %s", id); | |
429 | ||
430 | if (fstat(fd, &st) < 0) | |
431 | /* The device is allowed to go away at a random point, in which case fstat() failing is | |
432 | * expected. */ | |
433 | return log_debug_errno(errno, "Failed to stat device fd for session %s: %m", id); | |
434 | ||
435 | if (!S_ISCHR(st.st_mode) || st.st_rdev != dev) | |
436 | return log_debug_errno(SYNTHETIC_ERRNO(ENODEV), "Device fd doesn't point to the expected character device node"); | |
437 | ||
438 | sd = hashmap_get(s->devices, &dev); | |
439 | if (!sd) | |
440 | /* Weird, we got an fd for a session device which wasn't recorded in the session state | |
441 | * file... */ | |
442 | return log_warning_errno(SYNTHETIC_ERRNO(ENODEV), "Got fd for missing session device [%u:%u] in session %s", | |
443 | major(dev), minor(dev), s->id); | |
444 | ||
445 | log_debug("Attaching fd to session device [%u:%u] for session %s", | |
446 | major(dev), minor(dev), s->id); | |
447 | ||
448 | session_device_attach_fd(sd, fd, s->was_active); | |
449 | return 0; | |
450 | } | |
451 | ||
aed24c4c FB |
452 | static int manager_attach_fds(Manager *m) { |
453 | _cleanup_strv_free_ char **fdnames = NULL; | |
2720b6f2 | 454 | int n; |
aed24c4c | 455 | |
efc19ee4 LP |
456 | /* Upon restart, PID1 will send us back all fds of session devices that we previously opened. Each |
457 | * file descriptor is associated with a given session. The session ids are passed through FDNAMES. */ | |
aed24c4c FB |
458 | |
459 | n = sd_listen_fds_with_names(true, &fdnames); | |
efc19ee4 LP |
460 | if (n < 0) |
461 | return log_warning_errno(n, "Failed to acquire passed fd list: %m"); | |
462 | if (n == 0) | |
463 | return 0; | |
aed24c4c | 464 | |
efc19ee4 LP |
465 | for (int i = 0; i < n; i++) { |
466 | int fd = SD_LISTEN_FDS_START + i; | |
aed24c4c | 467 | |
efc19ee4 | 468 | if (deliver_fd(m, fdnames[i], fd) >= 0) |
51ead3e3 | 469 | continue; |
aed24c4c | 470 | |
2720b6f2 YW |
471 | /* Hmm, we couldn't deliver the fd to any session device object? If so, let's close the fd |
472 | * and remove it from fdstore. */ | |
473 | close_and_notify_warn(fd, fdnames[i]); | |
aed24c4c FB |
474 | } |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
9588bc32 | 479 | static int manager_enumerate_sessions(Manager *m) { |
9444b1f2 | 480 | _cleanup_closedir_ DIR *d = NULL; |
aed24c4c | 481 | int r = 0, k; |
20263082 | 482 | |
9444b1f2 LP |
483 | assert(m); |
484 | ||
485 | /* Read in session data stored on disk */ | |
486 | d = opendir("/run/systemd/sessions"); | |
487 | if (!d) { | |
488 | if (errno == ENOENT) | |
489 | return 0; | |
490 | ||
e1427b13 | 491 | return log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); |
9444b1f2 LP |
492 | } |
493 | ||
494 | FOREACH_DIRENT(de, d, return -errno) { | |
495 | struct Session *s; | |
20263082 | 496 | |
9444b1f2 | 497 | if (!dirent_is_file(de)) |
14c3baca LP |
498 | continue; |
499 | ||
9444b1f2 | 500 | k = manager_add_session(m, de->d_name, &s); |
20263082 | 501 | if (k < 0) { |
20fff3de | 502 | r = log_warning_errno(k, "Failed to add session by file name %s, ignoring: %m", de->d_name); |
20263082 LP |
503 | continue; |
504 | } | |
505 | ||
9444b1f2 | 506 | session_add_to_gc_queue(s); |
20263082 | 507 | |
9444b1f2 | 508 | k = session_load(s); |
20263082 LP |
509 | if (k < 0) |
510 | r = k; | |
511 | } | |
512 | ||
efc19ee4 LP |
513 | /* We might be restarted and PID1 could have sent us back the session device fds we previously |
514 | * saved. */ | |
515 | (void) manager_attach_fds(m); | |
aed24c4c | 516 | |
20263082 LP |
517 | return r; |
518 | } | |
519 | ||
9588bc32 | 520 | static int manager_enumerate_inhibitors(Manager *m) { |
9444b1f2 | 521 | _cleanup_closedir_ DIR *d = NULL; |
20263082 LP |
522 | int r = 0; |
523 | ||
524 | assert(m); | |
525 | ||
9444b1f2 | 526 | d = opendir("/run/systemd/inhibit"); |
20263082 LP |
527 | if (!d) { |
528 | if (errno == ENOENT) | |
529 | return 0; | |
530 | ||
e1427b13 | 531 | return log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); |
20263082 LP |
532 | } |
533 | ||
9444b1f2 | 534 | FOREACH_DIRENT(de, d, return -errno) { |
20263082 | 535 | int k; |
9444b1f2 | 536 | Inhibitor *i; |
20263082 LP |
537 | |
538 | if (!dirent_is_file(de)) | |
539 | continue; | |
540 | ||
9444b1f2 LP |
541 | k = manager_add_inhibitor(m, de->d_name, &i); |
542 | if (k < 0) { | |
20fff3de | 543 | r = log_warning_errno(k, "Couldn't add inhibitor %s, ignoring: %m", de->d_name); |
20263082 LP |
544 | continue; |
545 | } | |
546 | ||
9444b1f2 | 547 | k = inhibitor_load(i); |
20263082 LP |
548 | if (k < 0) |
549 | r = k; | |
550 | } | |
551 | ||
20263082 LP |
552 | return r; |
553 | } | |
554 | ||
eb968396 | 555 | static int manager_dispatch_seat_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
99534007 | 556 | Manager *m = ASSERT_PTR(userdata); |
20263082 | 557 | |
eb968396 | 558 | assert(device); |
20263082 | 559 | |
eb968396 | 560 | manager_process_seat_device(m, device); |
7b77ed8c | 561 | return 0; |
30ed21ce LP |
562 | } |
563 | ||
eb968396 | 564 | static int manager_dispatch_device_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
99534007 | 565 | Manager *m = ASSERT_PTR(userdata); |
718d006a | 566 | |
eb968396 | 567 | assert(device); |
718d006a | 568 | |
eb968396 | 569 | manager_process_seat_device(m, device); |
7b77ed8c | 570 | return 0; |
718d006a DH |
571 | } |
572 | ||
eb968396 | 573 | static int manager_dispatch_vcsa_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
99534007 | 574 | Manager *m = ASSERT_PTR(userdata); |
91bd2c34 | 575 | const char *name; |
30ed21ce | 576 | |
eb968396 | 577 | assert(device); |
30ed21ce LP |
578 | |
579 | /* Whenever a VCSA device is removed try to reallocate our | |
580 | * VTs, to make sure our auto VTs never go away. */ | |
581 | ||
eb968396 | 582 | if (sd_device_get_sysname(device, &name) >= 0 && |
4f209af7 | 583 | startswith(name, "vcsa") && |
a1130022 | 584 | device_for_action(device, SD_DEVICE_REMOVE)) |
7b77ed8c | 585 | seat_preallocate_vts(m->seat0); |
30ed21ce | 586 | |
7b77ed8c | 587 | return 0; |
20263082 LP |
588 | } |
589 | ||
eb968396 | 590 | static int manager_dispatch_button_udev(sd_device_monitor *monitor, sd_device *device, void *userdata) { |
99534007 | 591 | Manager *m = ASSERT_PTR(userdata); |
069cfc85 | 592 | |
eb968396 | 593 | assert(device); |
069cfc85 | 594 | |
eb968396 | 595 | manager_process_button_device(m, device); |
7b77ed8c | 596 | return 0; |
069cfc85 LP |
597 | } |
598 | ||
cc377381 | 599 | static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { |
99534007 | 600 | Manager *m = ASSERT_PTR(userdata); |
cc377381 | 601 | |
92432fcc | 602 | assert(m->seat0); |
cc377381 | 603 | assert(m->console_active_fd == fd); |
20263082 | 604 | |
92432fcc | 605 | seat_read_active_vt(m->seat0); |
20263082 LP |
606 | return 0; |
607 | } | |
608 | ||
98a77df5 LP |
609 | static int manager_reserve_vt(Manager *m) { |
610 | _cleanup_free_ char *p = NULL; | |
611 | ||
612 | assert(m); | |
613 | ||
614 | if (m->reserve_vt <= 0) | |
615 | return 0; | |
616 | ||
617 | if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0) | |
618 | return log_oom(); | |
619 | ||
620 | m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
621 | if (m->reserve_vt_fd < 0) { | |
d4d882e5 LP |
622 | |
623 | /* Don't complain on VT-less systems */ | |
624 | if (errno != ENOENT) | |
56f64d95 | 625 | log_warning_errno(errno, "Failed to pin reserved VT: %m"); |
98a77df5 LP |
626 | return -errno; |
627 | } | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
cc377381 | 632 | static int manager_connect_bus(Manager *m) { |
cc377381 | 633 | int r; |
31b79c2b | 634 | |
cc377381 LP |
635 | assert(m); |
636 | assert(!m->bus); | |
31b79c2b | 637 | |
76b54375 | 638 | r = sd_bus_default_system(&m->bus); |
f647962d MS |
639 | if (r < 0) |
640 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
31b79c2b | 641 | |
c2b178d3 | 642 | r = bus_add_implementation(m->bus, &manager_object, m); |
f647962d | 643 | if (r < 0) |
c2b178d3 | 644 | return r; |
20263082 | 645 | |
c2b178d3 | 646 | r = bus_log_control_api_register(m->bus); |
f647962d | 647 | if (r < 0) |
c2b178d3 | 648 | return r; |
20263082 | 649 | |
5d990cc5 | 650 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "JobRemoved", match_job_removed, NULL, m); |
f647962d | 651 | if (r < 0) |
75152a4d LP |
652 | return log_error_errno(r, "Failed to request match for JobRemoved: %m"); |
653 | ||
5d990cc5 | 654 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "UnitRemoved", match_unit_removed, NULL, m); |
f647962d | 655 | if (r < 0) |
75152a4d LP |
656 | return log_error_errno(r, "Failed to request match for UnitRemoved: %m"); |
657 | ||
658 | r = sd_bus_match_signal_async( | |
659 | m->bus, | |
660 | NULL, | |
661 | "org.freedesktop.systemd1", | |
662 | NULL, | |
663 | "org.freedesktop.DBus.Properties", | |
664 | "PropertiesChanged", | |
665 | match_properties_changed, NULL, m); | |
f647962d | 666 | if (r < 0) |
75152a4d LP |
667 | return log_error_errno(r, "Failed to request match for PropertiesChanged: %m"); |
668 | ||
5d990cc5 | 669 | r = bus_match_signal_async(m->bus, NULL, bus_systemd_mgr, "Reloading", match_reloading, NULL, m); |
f647962d | 670 | if (r < 0) |
75152a4d | 671 | return log_error_errno(r, "Failed to request match for Reloading: %m"); |
6797c324 | 672 | |
5d990cc5 | 673 | r = bus_call_method_async(m->bus, NULL, bus_systemd_mgr, "Subscribe", NULL, NULL, NULL); |
31b2cd5d LP |
674 | if (r < 0) |
675 | return log_error_errno(r, "Failed to enable subscription: %m"); | |
20263082 | 676 | |
0c0b9306 | 677 | r = sd_bus_request_name_async(m->bus, NULL, "org.freedesktop.login1", 0, NULL, NULL); |
f647962d | 678 | if (r < 0) |
0c0b9306 | 679 | return log_error_errno(r, "Failed to request name: %m"); |
bafd4449 | 680 | |
e11544a8 | 681 | r = sd_bus_attach_event(m->bus, m->event, SD_EVENT_PRIORITY_NORMAL); |
f647962d MS |
682 | if (r < 0) |
683 | return log_error_errno(r, "Failed to attach bus to event loop: %m"); | |
20263082 | 684 | |
20263082 | 685 | return 0; |
20263082 LP |
686 | } |
687 | ||
92683ad2 DH |
688 | static int manager_vt_switch(sd_event_source *src, const struct signalfd_siginfo *si, void *data) { |
689 | Manager *m = data; | |
03677889 | 690 | Session *active; |
92683ad2 DH |
691 | |
692 | /* | |
693 | * We got a VT-switch signal and we have to acknowledge it immediately. | |
694 | * Preferably, we'd just use m->seat0->active->vtfd, but unfortunately, | |
695 | * old user-space might run multiple sessions on a single VT, *sigh*. | |
696 | * Therefore, we have to iterate all sessions and find one with a vtfd | |
697 | * on the requested VT. | |
698 | * As only VTs with active controllers have VT_PROCESS set, our current | |
699 | * notion of the active VT might be wrong (for instance if the switch | |
700 | * happens while we setup VT_PROCESS). Therefore, read the current VT | |
701 | * first and then use s->active->vtnr as reference. Note that this is | |
702 | * not racy, as no further VT-switch can happen as long as we're in | |
703 | * synchronous VT_PROCESS mode. | |
704 | */ | |
705 | ||
706 | assert(m->seat0); | |
707 | seat_read_active_vt(m->seat0); | |
708 | ||
709 | active = m->seat0->active; | |
710 | if (!active || active->vtnr < 1) { | |
254d1313 | 711 | _cleanup_close_ int fd = -EBADF; |
adb8688b FB |
712 | int r; |
713 | ||
714 | /* We are requested to acknowledge the VT-switch signal by the kernel but | |
715 | * there's no registered sessions for the current VT. Normally this | |
716 | * shouldn't happen but something wrong might have happened when we tried | |
717 | * to release the VT. Better be safe than sorry, and try to release the VT | |
718 | * one more time otherwise the user will be locked with the current VT. */ | |
719 | ||
720 | log_warning("Received VT_PROCESS signal without a registered session, restoring VT."); | |
721 | ||
722 | /* At this point we only have the kernel mapping for referring to the | |
723 | * current VT. */ | |
724 | fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK); | |
725 | if (fd < 0) { | |
726 | log_warning_errno(fd, "Failed to open, ignoring: %m"); | |
727 | return 0; | |
728 | } | |
729 | ||
730 | r = vt_release(fd, true); | |
731 | if (r < 0) | |
732 | log_warning_errno(r, "Failed to release VT, ignoring: %m"); | |
733 | ||
92683ad2 DH |
734 | return 0; |
735 | } | |
736 | ||
03677889 | 737 | if (active->vtfd >= 0) |
2ec3ff66 | 738 | session_leave_vt(active); |
03677889 YW |
739 | else |
740 | LIST_FOREACH(sessions_by_seat, iter, m->seat0->sessions) | |
92683ad2 | 741 | if (iter->vtnr == active->vtnr && iter->vtfd >= 0) { |
2ec3ff66 | 742 | session_leave_vt(iter); |
92683ad2 DH |
743 | break; |
744 | } | |
92683ad2 DH |
745 | |
746 | return 0; | |
747 | } | |
748 | ||
20263082 | 749 | static int manager_connect_console(Manager *m) { |
cc377381 | 750 | int r; |
20263082 LP |
751 | |
752 | assert(m); | |
753 | assert(m->console_active_fd < 0); | |
754 | ||
0b6d55ca LP |
755 | /* On certain systems (such as S390, Xen, and containers) /dev/tty0 does not exist (as there is no VC), so |
756 | * don't fail if we can't open it. */ | |
757 | ||
cc377381 | 758 | if (access("/dev/tty0", F_OK) < 0) |
74afee9c | 759 | return 0; |
74afee9c | 760 | |
20263082 LP |
761 | m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); |
762 | if (m->console_active_fd < 0) { | |
cdc564d2 | 763 | |
0b6d55ca LP |
764 | /* On some systems /dev/tty0 may exist even though /sys/class/tty/tty0 does not. These are broken, but |
765 | * common. Let's complain but continue anyway. */ | |
766 | if (errno == ENOENT) { | |
767 | log_warning_errno(errno, "System has /dev/tty0 but not /sys/class/tty/tty0/active which is broken, ignoring: %m"); | |
cdc564d2 | 768 | return 0; |
0b6d55ca | 769 | } |
cdc564d2 | 770 | |
e1427b13 | 771 | return log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); |
20263082 LP |
772 | } |
773 | ||
151b9b96 | 774 | r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); |
0b6d55ca LP |
775 | if (r < 0) |
776 | return log_error_errno(r, "Failed to watch foreground console: %m"); | |
20263082 | 777 | |
92683ad2 DH |
778 | /* |
779 | * SIGRTMIN is used as global VT-release signal, SIGRTMIN + 1 is used | |
780 | * as VT-acquire signal. We ignore any acquire-events (yes, we still | |
781 | * have to provide a valid signal-number for it!) and acknowledge all | |
782 | * release events immediately. | |
783 | */ | |
784 | ||
baaa35ad ZJS |
785 | if (SIGRTMIN + 1 > SIGRTMAX) |
786 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
c0f86d66 | 787 | "Not enough real-time signals available: %i-%i", |
baaa35ad | 788 | SIGRTMIN, SIGRTMAX); |
92683ad2 | 789 | |
9c274488 | 790 | assert_se(ignore_signals(SIGRTMIN + 1) >= 0); |
72c0a2c2 | 791 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0); |
92683ad2 DH |
792 | |
793 | r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); | |
794 | if (r < 0) | |
0b6d55ca | 795 | return log_error_errno(r, "Failed to subscribe to signal: %m"); |
92683ad2 | 796 | |
20263082 LP |
797 | return 0; |
798 | } | |
799 | ||
800 | static int manager_connect_udev(Manager *m) { | |
14c3baca | 801 | int r; |
20263082 LP |
802 | |
803 | assert(m); | |
eb968396 YW |
804 | assert(!m->device_seat_monitor); |
805 | assert(!m->device_monitor); | |
806 | assert(!m->device_vcsa_monitor); | |
807 | assert(!m->device_button_monitor); | |
20263082 | 808 | |
eb968396 YW |
809 | r = sd_device_monitor_new(&m->device_seat_monitor); |
810 | if (r < 0) | |
811 | return r; | |
20263082 | 812 | |
eb968396 | 813 | r = sd_device_monitor_filter_add_match_tag(m->device_seat_monitor, "master-of-seat"); |
14c3baca LP |
814 | if (r < 0) |
815 | return r; | |
20263082 | 816 | |
deb2b734 | 817 | r = sd_device_monitor_attach_event(m->device_seat_monitor, m->event); |
14c3baca LP |
818 | if (r < 0) |
819 | return r; | |
20263082 | 820 | |
deb2b734 | 821 | r = sd_device_monitor_start(m->device_seat_monitor, manager_dispatch_seat_udev, m); |
cc377381 LP |
822 | if (r < 0) |
823 | return r; | |
069cfc85 | 824 | |
17bf3c55 | 825 | (void) sd_device_monitor_set_description(m->device_seat_monitor, "seat"); |
deb2b734 | 826 | |
eb968396 YW |
827 | r = sd_device_monitor_new(&m->device_monitor); |
828 | if (r < 0) | |
829 | return r; | |
718d006a | 830 | |
eb968396 | 831 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "input", NULL); |
718d006a DH |
832 | if (r < 0) |
833 | return r; | |
834 | ||
eb968396 | 835 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "graphics", NULL); |
718d006a DH |
836 | if (r < 0) |
837 | return r; | |
838 | ||
eb968396 | 839 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_monitor, "drm", NULL); |
718d006a DH |
840 | if (r < 0) |
841 | return r; | |
842 | ||
deb2b734 | 843 | r = sd_device_monitor_attach_event(m->device_monitor, m->event); |
718d006a DH |
844 | if (r < 0) |
845 | return r; | |
846 | ||
deb2b734 | 847 | r = sd_device_monitor_start(m->device_monitor, manager_dispatch_device_udev, m); |
cc377381 LP |
848 | if (r < 0) |
849 | return r; | |
718d006a | 850 | |
17bf3c55 | 851 | (void) sd_device_monitor_set_description(m->device_monitor, "input,graphics,drm"); |
deb2b734 | 852 | |
6de0e0e5 | 853 | /* Don't watch keys if nobody cares */ |
e25937a3 | 854 | if (!manager_all_buttons_ignored(m)) { |
eb968396 YW |
855 | r = sd_device_monitor_new(&m->device_button_monitor); |
856 | if (r < 0) | |
857 | return r; | |
069cfc85 | 858 | |
eb968396 | 859 | r = sd_device_monitor_filter_add_match_tag(m->device_button_monitor, "power-switch"); |
6de0e0e5 LP |
860 | if (r < 0) |
861 | return r; | |
069cfc85 | 862 | |
eb968396 | 863 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_button_monitor, "input", NULL); |
6de0e0e5 LP |
864 | if (r < 0) |
865 | return r; | |
069cfc85 | 866 | |
deb2b734 | 867 | r = sd_device_monitor_attach_event(m->device_button_monitor, m->event); |
6de0e0e5 LP |
868 | if (r < 0) |
869 | return r; | |
069cfc85 | 870 | |
deb2b734 | 871 | r = sd_device_monitor_start(m->device_button_monitor, manager_dispatch_button_udev, m); |
cc377381 LP |
872 | if (r < 0) |
873 | return r; | |
deb2b734 | 874 | |
17bf3c55 | 875 | (void) sd_device_monitor_set_description(m->device_button_monitor, "button"); |
6de0e0e5 | 876 | } |
069cfc85 | 877 | |
976c088a | 878 | /* Don't bother watching VCSA devices, if nobody cares */ |
6de0e0e5 | 879 | if (m->n_autovts > 0 && m->console_active_fd >= 0) { |
30ed21ce | 880 | |
eb968396 YW |
881 | r = sd_device_monitor_new(&m->device_vcsa_monitor); |
882 | if (r < 0) | |
883 | return r; | |
30ed21ce | 884 | |
eb968396 | 885 | r = sd_device_monitor_filter_add_match_subsystem_devtype(m->device_vcsa_monitor, "vc", NULL); |
6de0e0e5 LP |
886 | if (r < 0) |
887 | return r; | |
30ed21ce | 888 | |
deb2b734 | 889 | r = sd_device_monitor_attach_event(m->device_vcsa_monitor, m->event); |
6de0e0e5 LP |
890 | if (r < 0) |
891 | return r; | |
30ed21ce | 892 | |
deb2b734 | 893 | r = sd_device_monitor_start(m->device_vcsa_monitor, manager_dispatch_vcsa_udev, m); |
cc377381 LP |
894 | if (r < 0) |
895 | return r; | |
deb2b734 | 896 | |
17bf3c55 | 897 | (void) sd_device_monitor_set_description(m->device_vcsa_monitor, "vcsa"); |
6de0e0e5 | 898 | } |
20263082 LP |
899 | |
900 | return 0; | |
901 | } | |
902 | ||
905f0a39 | 903 | static void manager_gc(Manager *m, bool drop_not_started) { |
14c3baca LP |
904 | Seat *seat; |
905 | Session *session; | |
906 | User *user; | |
907 | ||
908 | assert(m); | |
909 | ||
52e3671b | 910 | while ((seat = LIST_POP(gc_queue, m->seat_gc_queue))) { |
14c3baca LP |
911 | seat->in_gc_queue = false; |
912 | ||
5c093a23 | 913 | if (seat_may_gc(seat, drop_not_started)) { |
bda62573 | 914 | seat_stop(seat, /* force = */ false); |
14c3baca LP |
915 | seat_free(seat); |
916 | } | |
917 | } | |
918 | ||
52e3671b | 919 | while ((session = LIST_POP(gc_queue, m->session_gc_queue))) { |
14c3baca LP |
920 | session->in_gc_queue = false; |
921 | ||
6c75e317 | 922 | /* First, if we are not closing yet, initiate stopping. */ |
5c093a23 | 923 | if (session_may_gc(session, drop_not_started) && |
5f41d1f1 | 924 | session_get_state(session) != SESSION_CLOSING) |
bda62573 | 925 | (void) session_stop(session, /* force = */ false); |
5f41d1f1 | 926 | |
6c75e317 ZJS |
927 | /* Normally, this should make the session referenced again, if it doesn't then let's get rid |
928 | * of it immediately. */ | |
5c093a23 | 929 | if (session_may_gc(session, drop_not_started)) { |
75bbdf47 | 930 | (void) session_finalize(session); |
14c3baca LP |
931 | session_free(session); |
932 | } | |
933 | } | |
934 | ||
52e3671b | 935 | while ((user = LIST_POP(gc_queue, m->user_gc_queue))) { |
14c3baca LP |
936 | user->in_gc_queue = false; |
937 | ||
b58b227a | 938 | /* First step: queue stop jobs */ |
5c093a23 | 939 | if (user_may_gc(user, drop_not_started)) |
75bbdf47 | 940 | (void) user_stop(user, false); |
5f41d1f1 | 941 | |
b58b227a | 942 | /* Second step: finalize user */ |
5c093a23 | 943 | if (user_may_gc(user, drop_not_started)) { |
75bbdf47 | 944 | (void) user_finalize(user); |
14c3baca LP |
945 | user_free(user); |
946 | } | |
947 | } | |
948 | } | |
949 | ||
cc377381 | 950 | static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { |
99534007 | 951 | Manager *m = ASSERT_PTR(userdata); |
23406ce5 | 952 | struct dual_timestamp since; |
cc377381 | 953 | usec_t n, elapse; |
23406ce5 | 954 | int r; |
23406ce5 | 955 | |
23406ce5 | 956 | if (m->idle_action == HANDLE_IGNORE || |
cc377381 LP |
957 | m->idle_action_usec <= 0) |
958 | return 0; | |
23406ce5 | 959 | |
23406ce5 LP |
960 | n = now(CLOCK_MONOTONIC); |
961 | ||
962 | r = manager_get_idle_hint(m, &since); | |
4e2cfb77 | 963 | if (r <= 0) { |
39ccc87c | 964 | /* Not idle. Let's check if after a timeout it might be idle then. */ |
cc377381 | 965 | elapse = n + m->idle_action_usec; |
4e2cfb77 MS |
966 | m->was_idle = false; |
967 | } else { | |
968 | ||
23406ce5 LP |
969 | /* Idle! Let's see if it's time to do something, or if |
970 | * we shall sleep for longer. */ | |
971 | ||
972 | if (n >= since.monotonic + m->idle_action_usec && | |
973 | (m->idle_action_not_before_usec <= 0 || n >= m->idle_action_not_before_usec + m->idle_action_usec)) { | |
4e2cfb77 MS |
974 | bool is_edge = false; |
975 | ||
976 | /* We weren't idle previously or some activity happened while we were sleeping, and now we are | |
977 | * idle. Let's remember that for the next time and make this an edge transition. */ | |
978 | if (!m->was_idle || since.monotonic >= m->idle_action_not_before_usec) { | |
979 | is_edge = true; | |
980 | m->was_idle = true; | |
981 | } | |
982 | ||
983 | if (m->idle_action == HANDLE_LOCK && !is_edge) | |
984 | /* We are idle and we were before so we are actually not taking any action. */ | |
985 | log_debug("System idle."); | |
986 | else | |
987 | log_info("System idle. Will %s now.", handle_action_verb_to_string(m->idle_action)); | |
23406ce5 | 988 | |
4e2cfb77 | 989 | manager_handle_action(m, 0, m->idle_action, false, is_edge); |
23406ce5 LP |
990 | m->idle_action_not_before_usec = n; |
991 | } | |
992 | ||
cc377381 | 993 | elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; |
23406ce5 LP |
994 | } |
995 | ||
cc377381 | 996 | if (!m->idle_action_event_source) { |
23406ce5 | 997 | |
6a0f1f6d LP |
998 | r = sd_event_add_time( |
999 | m->event, | |
1000 | &m->idle_action_event_source, | |
1001 | CLOCK_MONOTONIC, | |
1002 | elapse, USEC_PER_SEC*30, | |
1003 | manager_dispatch_idle_action, m); | |
f647962d MS |
1004 | if (r < 0) |
1005 | return log_error_errno(r, "Failed to add idle event source: %m"); | |
23406ce5 | 1006 | |
718db961 | 1007 | r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); |
f647962d MS |
1008 | if (r < 0) |
1009 | return log_error_errno(r, "Failed to set idle event source priority: %m"); | |
cc377381 LP |
1010 | } else { |
1011 | r = sd_event_source_set_time(m->idle_action_event_source, elapse); | |
f647962d MS |
1012 | if (r < 0) |
1013 | return log_error_errno(r, "Failed to set idle event timer: %m"); | |
23406ce5 | 1014 | |
cc377381 | 1015 | r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); |
f647962d MS |
1016 | if (r < 0) |
1017 | return log_error_errno(r, "Failed to enable idle event timer: %m"); | |
23406ce5 LP |
1018 | } |
1019 | ||
1020 | return 0; | |
23406ce5 | 1021 | } |
cc377381 | 1022 | |
a2ed7077 ZJS |
1023 | static int manager_dispatch_reload_signal(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { |
1024 | Manager *m = userdata; | |
1025 | int r; | |
1026 | ||
5d71e463 LP |
1027 | (void) sd_notifyf(/* unset= */ false, |
1028 | "RELOADING=1\n" | |
1029 | "STATUS=Reloading configuration...\n" | |
1030 | "MONOTONIC_USEC=" USEC_FMT, now(CLOCK_MONOTONIC)); | |
1031 | ||
a2ed7077 ZJS |
1032 | manager_reset_config(m); |
1033 | r = manager_parse_config_file(m); | |
1034 | if (r < 0) | |
1035 | log_warning_errno(r, "Failed to parse config file, using defaults: %m"); | |
1036 | else | |
1037 | log_info("Config file reloaded."); | |
1038 | ||
5d71e463 | 1039 | (void) sd_notify(/* unset= */ false, NOTIFY_READY); |
a2ed7077 ZJS |
1040 | return 0; |
1041 | } | |
1042 | ||
905f0a39 | 1043 | static int manager_startup(Manager *m) { |
20263082 | 1044 | int r; |
14c3baca LP |
1045 | Seat *seat; |
1046 | Session *session; | |
513cf7da | 1047 | User *user; |
ed4ba7e4 | 1048 | Button *button; |
f8e2fb7b | 1049 | Inhibitor *inhibitor; |
20263082 LP |
1050 | |
1051 | assert(m); | |
20263082 | 1052 | |
a2ed7077 ZJS |
1053 | r = sd_event_add_signal(m->event, NULL, SIGHUP, manager_dispatch_reload_signal, m); |
1054 | if (r < 0) | |
1055 | return log_error_errno(r, "Failed to register SIGHUP handler: %m"); | |
1056 | ||
3d0ef5c7 LP |
1057 | /* Connect to utmp */ |
1058 | manager_connect_utmp(m); | |
1059 | ||
976c088a LP |
1060 | /* Connect to console */ |
1061 | r = manager_connect_console(m); | |
20263082 LP |
1062 | if (r < 0) |
1063 | return r; | |
1064 | ||
976c088a LP |
1065 | /* Connect to udev */ |
1066 | r = manager_connect_udev(m); | |
f647962d MS |
1067 | if (r < 0) |
1068 | return log_error_errno(r, "Failed to create udev watchers: %m"); | |
20263082 LP |
1069 | |
1070 | /* Connect to the bus */ | |
1071 | r = manager_connect_bus(m); | |
1072 | if (r < 0) | |
1073 | return r; | |
1074 | ||
14c3baca | 1075 | /* Instantiate magic seat 0 */ |
92432fcc | 1076 | r = manager_add_seat(m, "seat0", &m->seat0); |
f647962d MS |
1077 | if (r < 0) |
1078 | return log_error_errno(r, "Failed to add seat0: %m"); | |
14c3baca | 1079 | |
9d10cbee | 1080 | r = manager_set_lid_switch_ignore(m, 0 + m->holdoff_timeout_usec); |
f9cd6be1 | 1081 | if (r < 0) |
da927ba9 | 1082 | log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); |
f9cd6be1 | 1083 | |
20263082 | 1084 | /* Deserialize state */ |
042f5988 ZJS |
1085 | r = manager_enumerate_devices(m); |
1086 | if (r < 0) | |
da927ba9 | 1087 | log_warning_errno(r, "Device enumeration failed: %m"); |
042f5988 ZJS |
1088 | |
1089 | r = manager_enumerate_seats(m); | |
1090 | if (r < 0) | |
da927ba9 | 1091 | log_warning_errno(r, "Seat enumeration failed: %m"); |
042f5988 ZJS |
1092 | |
1093 | r = manager_enumerate_users(m); | |
1094 | if (r < 0) | |
da927ba9 | 1095 | log_warning_errno(r, "User enumeration failed: %m"); |
042f5988 ZJS |
1096 | |
1097 | r = manager_enumerate_sessions(m); | |
1098 | if (r < 0) | |
da927ba9 | 1099 | log_warning_errno(r, "Session enumeration failed: %m"); |
042f5988 ZJS |
1100 | |
1101 | r = manager_enumerate_inhibitors(m); | |
1102 | if (r < 0) | |
da927ba9 | 1103 | log_warning_errno(r, "Inhibitor enumeration failed: %m"); |
042f5988 ZJS |
1104 | |
1105 | r = manager_enumerate_buttons(m); | |
1106 | if (r < 0) | |
da927ba9 | 1107 | log_warning_errno(r, "Button enumeration failed: %m"); |
20263082 | 1108 | |
aa6123e8 LN |
1109 | manager_load_scheduled_shutdown(m); |
1110 | ||
4a4b033f LP |
1111 | /* Remove stale objects before we start them */ |
1112 | manager_gc(m, false); | |
1113 | ||
98a77df5 LP |
1114 | /* Reserve the special reserved VT */ |
1115 | manager_reserve_vt(m); | |
1116 | ||
3d0ef5c7 LP |
1117 | /* Read in utmp if it exists */ |
1118 | manager_read_utmp(m); | |
1119 | ||
14c3baca | 1120 | /* And start everything */ |
90e74a66 | 1121 | HASHMAP_FOREACH(seat, m->seats) |
75bbdf47 | 1122 | (void) seat_start(seat); |
14c3baca | 1123 | |
513cf7da MS |
1124 | HASHMAP_FOREACH(user, m->users) |
1125 | (void) user_start(user); | |
1126 | ||
90e74a66 | 1127 | HASHMAP_FOREACH(session, m->sessions) |
25a1ab4e | 1128 | (void) session_start(session, NULL, NULL); |
20263082 | 1129 | |
90e74a66 | 1130 | HASHMAP_FOREACH(inhibitor, m->inhibitors) { |
11eae36d LP |
1131 | (void) inhibitor_start(inhibitor); |
1132 | ||
1133 | /* Let's see if the inhibitor is dead now, then remove it */ | |
1134 | if (inhibitor_is_orphan(inhibitor)) { | |
1135 | inhibitor_stop(inhibitor); | |
1136 | inhibitor_free(inhibitor); | |
1137 | } | |
1138 | } | |
f8e2fb7b | 1139 | |
90e74a66 | 1140 | HASHMAP_FOREACH(button, m->buttons) |
2d62c530 | 1141 | button_check_switches(button); |
ed4ba7e4 | 1142 | |
cc377381 | 1143 | manager_dispatch_idle_action(NULL, 0, m); |
23406ce5 | 1144 | |
20263082 LP |
1145 | return 0; |
1146 | } | |
1147 | ||
905f0a39 | 1148 | static int manager_run(Manager *m) { |
cc377381 LP |
1149 | int r; |
1150 | ||
20263082 LP |
1151 | assert(m); |
1152 | ||
1153 | for (;;) { | |
cc377381 LP |
1154 | r = sd_event_get_state(m->event); |
1155 | if (r < 0) | |
1156 | return r; | |
1157 | if (r == SD_EVENT_FINISHED) | |
1158 | return 0; | |
20263082 | 1159 | |
4a4b033f | 1160 | manager_gc(m, true); |
14c3baca | 1161 | |
418b22b8 DM |
1162 | r = manager_dispatch_delayed(m, false); |
1163 | if (r < 0) | |
1164 | return r; | |
1165 | if (r > 0) | |
1166 | continue; | |
1167 | ||
f5fbe71d | 1168 | r = sd_event_run(m->event, UINT64_MAX); |
cc377381 LP |
1169 | if (r < 0) |
1170 | return r; | |
20263082 | 1171 | } |
20263082 LP |
1172 | } |
1173 | ||
c11cfa28 | 1174 | static int run(int argc, char *argv[]) { |
5ce8ce90 | 1175 | _cleanup_(manager_freep) Manager *m = NULL; |
d7ac0952 | 1176 | _unused_ _cleanup_(notify_on_cleanup) const char *notify_message = NULL; |
5eda94dd | 1177 | int r; |
20263082 | 1178 | |
3eff4208 | 1179 | log_set_facility(LOG_AUTH); |
d2acb93d | 1180 | log_setup(); |
20263082 | 1181 | |
fc021a5b ZJS |
1182 | r = service_parse_argv("systemd-logind.service", |
1183 | "Manager for user logins and devices and privileged operations.", | |
d4cc0edf ZJS |
1184 | BUS_IMPLEMENTATIONS(&manager_object, |
1185 | &log_control_object), | |
fc021a5b ZJS |
1186 | argc, argv); |
1187 | if (r <= 0) | |
1188 | return r; | |
4c12626c | 1189 | |
fc021a5b | 1190 | umask(0022); |
20263082 | 1191 | |
a452c807 | 1192 | r = mac_init(); |
c11cfa28 | 1193 | if (r < 0) |
a9ba0e32 | 1194 | return r; |
4b51966c | 1195 | |
6c75e317 ZJS |
1196 | /* Always create the directories people can create inotify watches in. Note that some applications |
1197 | * might check for the existence of /run/systemd/seats/ to determine whether logind is available, so | |
1198 | * please always make sure these directories are created early on and unconditionally. */ | |
90b8a009 LP |
1199 | (void) mkdir_label("/run/systemd/seats", 0755); |
1200 | (void) mkdir_label("/run/systemd/users", 0755); | |
1201 | (void) mkdir_label("/run/systemd/sessions", 0755); | |
bb27ff66 | 1202 | |
92e1a209 | 1203 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGHUP, SIGTERM, SIGINT, SIGCHLD, SIGRTMIN+18, -1) >= 0); |
fcfa765d | 1204 | |
23462168 | 1205 | r = manager_new(&m); |
c11cfa28 ZJS |
1206 | if (r < 0) |
1207 | return log_error_errno(r, "Failed to allocate manager object: %m"); | |
20263082 | 1208 | |
23462168 | 1209 | (void) manager_parse_config_file(m); |
193197e8 | 1210 | |
20263082 | 1211 | r = manager_startup(m); |
c11cfa28 ZJS |
1212 | if (r < 0) |
1213 | return log_error_errno(r, "Failed to fully start up daemon: %m"); | |
20263082 | 1214 | |
21fe744c ZJS |
1215 | notify_message = notify_start(NOTIFY_READY, NOTIFY_STOPPING); |
1216 | return manager_run(m); | |
20263082 | 1217 | } |
c11cfa28 ZJS |
1218 | |
1219 | DEFINE_MAIN_FUNCTION(run); |