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Commit | Line | Data |
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20263082 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
20263082 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
20263082 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
20263082 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
90a18413 DH |
23 | #include <fcntl.h> |
24 | #include <linux/vt.h> | |
25 | #include <linux/kd.h> | |
26 | #include <signal.h> | |
20263082 | 27 | #include <string.h> |
90a18413 | 28 | #include <sys/ioctl.h> |
20263082 LP |
29 | #include <unistd.h> |
30 | ||
cc377381 LP |
31 | #include "sd-id128.h" |
32 | #include "sd-messages.h" | |
20263082 LP |
33 | #include "strv.h" |
34 | #include "util.h" | |
49e942b2 | 35 | #include "mkdir.h" |
9eb977db | 36 | #include "path-util.h" |
a5c32cff | 37 | #include "fileio.h" |
cc377381 LP |
38 | #include "audit.h" |
39 | #include "bus-util.h" | |
40 | #include "bus-error.h" | |
fb6becb4 | 41 | #include "logind-session.h" |
20263082 | 42 | |
831dedef DH |
43 | static unsigned devt_hash_func(const void *p) { |
44 | uint64_t u = *(const dev_t*)p; | |
45 | ||
46 | return uint64_hash_func(&u); | |
47 | } | |
48 | ||
49 | static int devt_compare_func(const void *_a, const void *_b) { | |
50 | dev_t a, b; | |
51 | ||
52 | a = *(const dev_t*) _a; | |
53 | b = *(const dev_t*) _b; | |
54 | ||
55 | return a < b ? -1 : (a > b ? 1 : 0); | |
56 | } | |
57 | ||
9444b1f2 | 58 | Session* session_new(Manager *m, const char *id) { |
20263082 LP |
59 | Session *s; |
60 | ||
61 | assert(m); | |
62 | assert(id); | |
4b549144 | 63 | assert(session_id_valid(id)); |
20263082 | 64 | |
14c3baca | 65 | s = new0(Session, 1); |
20263082 LP |
66 | if (!s) |
67 | return NULL; | |
68 | ||
98a28fef | 69 | s->state_file = strappend("/run/systemd/sessions/", id); |
20263082 LP |
70 | if (!s->state_file) { |
71 | free(s); | |
72 | return NULL; | |
73 | } | |
74 | ||
831dedef | 75 | s->devices = hashmap_new(devt_hash_func, devt_compare_func); |
118ecf32 DH |
76 | if (!s->devices) { |
77 | free(s->state_file); | |
78 | free(s); | |
79 | return NULL; | |
80 | } | |
81 | ||
9eb977db | 82 | s->id = path_get_file_name(s->state_file); |
20263082 LP |
83 | |
84 | if (hashmap_put(m->sessions, s->id, s) < 0) { | |
118ecf32 | 85 | hashmap_free(s->devices); |
f8e2fb7b | 86 | free(s->state_file); |
20263082 LP |
87 | free(s); |
88 | return NULL; | |
89 | } | |
90 | ||
91 | s->manager = m; | |
932e3ee7 | 92 | s->fifo_fd = -1; |
90a18413 | 93 | s->vtfd = -1; |
20263082 LP |
94 | |
95 | return s; | |
96 | } | |
97 | ||
98 | void session_free(Session *s) { | |
118ecf32 DH |
99 | SessionDevice *sd; |
100 | ||
20263082 LP |
101 | assert(s); |
102 | ||
14c3baca | 103 | if (s->in_gc_queue) |
71fda00f | 104 | LIST_REMOVE(gc_queue, s->manager->session_gc_queue, s); |
14c3baca | 105 | |
cc377381 LP |
106 | session_remove_fifo(s); |
107 | ||
ae5e06bd DH |
108 | session_drop_controller(s); |
109 | ||
118ecf32 DH |
110 | while ((sd = hashmap_first(s->devices))) |
111 | session_device_free(sd); | |
112 | ||
113 | hashmap_free(s->devices); | |
114 | ||
20263082 | 115 | if (s->user) { |
71fda00f | 116 | LIST_REMOVE(sessions_by_user, s->user->sessions, s); |
20263082 LP |
117 | |
118 | if (s->user->display == s) | |
119 | s->user->display = NULL; | |
120 | } | |
121 | ||
9418f147 LP |
122 | if (s->seat) { |
123 | if (s->seat->active == s) | |
124 | s->seat->active = NULL; | |
d7bd01b5 DH |
125 | if (s->seat->pending_switch == s) |
126 | s->seat->pending_switch = NULL; | |
9418f147 | 127 | |
71fda00f | 128 | LIST_REMOVE(sessions_by_seat, s->seat->sessions, s); |
9418f147 | 129 | } |
20263082 | 130 | |
fb6becb4 LP |
131 | if (s->scope) { |
132 | hashmap_remove(s->manager->session_units, s->scope); | |
133 | free(s->scope); | |
134 | } | |
135 | ||
136 | free(s->scope_job); | |
1713813d | 137 | |
cc377381 | 138 | sd_bus_message_unref(s->create_message); |
20263082 LP |
139 | |
140 | free(s->tty); | |
141 | free(s->display); | |
142 | free(s->remote_host); | |
3f49d45a | 143 | free(s->remote_user); |
98a28fef | 144 | free(s->service); |
20263082 LP |
145 | |
146 | hashmap_remove(s->manager->sessions, s->id); | |
98a28fef | 147 | |
d2f92cdf | 148 | free(s->state_file); |
20263082 LP |
149 | free(s); |
150 | } | |
151 | ||
9444b1f2 LP |
152 | void session_set_user(Session *s, User *u) { |
153 | assert(s); | |
154 | assert(!s->user); | |
155 | ||
156 | s->user = u; | |
71fda00f | 157 | LIST_PREPEND(sessions_by_user, u->sessions, s); |
9444b1f2 LP |
158 | } |
159 | ||
20263082 | 160 | int session_save(Session *s) { |
507f22bd | 161 | _cleanup_free_ char *temp_path = NULL; |
cc377381 | 162 | _cleanup_fclose_ FILE *f = NULL; |
20263082 LP |
163 | int r = 0; |
164 | ||
165 | assert(s); | |
166 | ||
9444b1f2 LP |
167 | if (!s->user) |
168 | return -ESTALE; | |
169 | ||
accaeded LP |
170 | if (!s->started) |
171 | return 0; | |
172 | ||
d2e54fae | 173 | r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0); |
20263082 | 174 | if (r < 0) |
14c3baca | 175 | goto finish; |
20263082 | 176 | |
14c3baca LP |
177 | r = fopen_temporary(s->state_file, &f, &temp_path); |
178 | if (r < 0) | |
179 | goto finish; | |
20263082 LP |
180 | |
181 | assert(s->user); | |
182 | ||
14c3baca LP |
183 | fchmod(fileno(f), 0644); |
184 | ||
20263082 LP |
185 | fprintf(f, |
186 | "# This is private data. Do not parse.\n" | |
187 | "UID=%lu\n" | |
188 | "USER=%s\n" | |
189 | "ACTIVE=%i\n" | |
0604381b | 190 | "STATE=%s\n" |
fb6becb4 | 191 | "REMOTE=%i\n", |
20263082 LP |
192 | (unsigned long) s->user->uid, |
193 | s->user->name, | |
194 | session_is_active(s), | |
0604381b | 195 | session_state_to_string(session_get_state(s)), |
fb6becb4 | 196 | s->remote); |
20263082 | 197 | |
a91e4e53 | 198 | if (s->type >= 0) |
507f22bd | 199 | fprintf(f, "TYPE=%s\n", session_type_to_string(s->type)); |
a91e4e53 | 200 | |
55efac6c | 201 | if (s->class >= 0) |
507f22bd | 202 | fprintf(f, "CLASS=%s\n", session_class_to_string(s->class)); |
55efac6c | 203 | |
fb6becb4 LP |
204 | if (s->scope) |
205 | fprintf(f, "SCOPE=%s\n", s->scope); | |
206 | ||
207 | if (s->scope_job) | |
208 | fprintf(f, "SCOPE_JOB=%s\n", s->scope_job); | |
20263082 | 209 | |
932e3ee7 | 210 | if (s->fifo_path) |
507f22bd | 211 | fprintf(f, "FIFO=%s\n", s->fifo_path); |
932e3ee7 | 212 | |
20263082 | 213 | if (s->seat) |
507f22bd | 214 | fprintf(f, "SEAT=%s\n", s->seat->id); |
20263082 LP |
215 | |
216 | if (s->tty) | |
507f22bd | 217 | fprintf(f, "TTY=%s\n", s->tty); |
20263082 LP |
218 | |
219 | if (s->display) | |
507f22bd | 220 | fprintf(f, "DISPLAY=%s\n", s->display); |
20263082 LP |
221 | |
222 | if (s->remote_host) | |
507f22bd | 223 | fprintf(f, "REMOTE_HOST=%s\n", s->remote_host); |
20263082 | 224 | |
3f49d45a | 225 | if (s->remote_user) |
507f22bd | 226 | fprintf(f, "REMOTE_USER=%s\n", s->remote_user); |
3f49d45a | 227 | |
98a28fef | 228 | if (s->service) |
507f22bd | 229 | fprintf(f, "SERVICE=%s\n", s->service); |
98a28fef | 230 | |
bf7825ae | 231 | if (s->seat && seat_has_vts(s->seat)) |
507f22bd | 232 | fprintf(f, "VTNR=%i\n", s->vtnr); |
20263082 LP |
233 | |
234 | if (s->leader > 0) | |
507f22bd | 235 | fprintf(f, "LEADER=%lu\n", (unsigned long) s->leader); |
20263082 LP |
236 | |
237 | if (s->audit_id > 0) | |
507f22bd | 238 | fprintf(f, "AUDIT=%"PRIu32"\n", s->audit_id); |
20263082 | 239 | |
9444b1f2 LP |
240 | if (dual_timestamp_is_set(&s->timestamp)) |
241 | fprintf(f, | |
242 | "REALTIME=%llu\n" | |
243 | "MONOTONIC=%llu\n", | |
244 | (unsigned long long) s->timestamp.realtime, | |
245 | (unsigned long long) s->timestamp.monotonic); | |
246 | ||
6d33772f DH |
247 | if (s->controller) |
248 | fprintf(f, "CONTROLLER=%s\n", s->controller); | |
249 | ||
20263082 | 250 | fflush(f); |
14c3baca LP |
251 | |
252 | if (ferror(f) || rename(temp_path, s->state_file) < 0) { | |
20263082 LP |
253 | r = -errno; |
254 | unlink(s->state_file); | |
14c3baca | 255 | unlink(temp_path); |
20263082 LP |
256 | } |
257 | ||
14c3baca LP |
258 | finish: |
259 | if (r < 0) | |
260 | log_error("Failed to save session data for %s: %s", s->id, strerror(-r)); | |
261 | ||
20263082 LP |
262 | return r; |
263 | } | |
264 | ||
265 | int session_load(Session *s) { | |
9444b1f2 | 266 | _cleanup_free_ char *remote = NULL, |
a185c5aa LP |
267 | *seat = NULL, |
268 | *vtnr = NULL, | |
269 | *leader = NULL, | |
55efac6c | 270 | *type = NULL, |
9444b1f2 LP |
271 | *class = NULL, |
272 | *uid = NULL, | |
273 | *realtime = NULL, | |
6d33772f DH |
274 | *monotonic = NULL, |
275 | *controller = NULL; | |
a185c5aa LP |
276 | |
277 | int k, r; | |
278 | ||
20263082 LP |
279 | assert(s); |
280 | ||
a185c5aa LP |
281 | r = parse_env_file(s->state_file, NEWLINE, |
282 | "REMOTE", &remote, | |
fb6becb4 LP |
283 | "SCOPE", &s->scope, |
284 | "SCOPE_JOB", &s->scope_job, | |
932e3ee7 | 285 | "FIFO", &s->fifo_path, |
a185c5aa LP |
286 | "SEAT", &seat, |
287 | "TTY", &s->tty, | |
288 | "DISPLAY", &s->display, | |
289 | "REMOTE_HOST", &s->remote_host, | |
290 | "REMOTE_USER", &s->remote_user, | |
98a28fef | 291 | "SERVICE", &s->service, |
a185c5aa LP |
292 | "VTNR", &vtnr, |
293 | "LEADER", &leader, | |
a91e4e53 | 294 | "TYPE", &type, |
55efac6c | 295 | "CLASS", &class, |
9444b1f2 LP |
296 | "UID", &uid, |
297 | "REALTIME", &realtime, | |
298 | "MONOTONIC", &monotonic, | |
6d33772f | 299 | "CONTROLLER", &controller, |
a185c5aa LP |
300 | NULL); |
301 | ||
9444b1f2 LP |
302 | if (r < 0) { |
303 | log_error("Failed to read %s: %s", s->state_file, strerror(-r)); | |
304 | return r; | |
305 | } | |
306 | ||
307 | if (!s->user) { | |
308 | uid_t u; | |
309 | User *user; | |
310 | ||
311 | if (!uid) { | |
312 | log_error("UID not specified for session %s", s->id); | |
313 | return -ENOENT; | |
314 | } | |
315 | ||
316 | r = parse_uid(uid, &u); | |
317 | if (r < 0) { | |
318 | log_error("Failed to parse UID value %s for session %s.", uid, s->id); | |
319 | return r; | |
320 | } | |
321 | ||
322 | user = hashmap_get(s->manager->users, ULONG_TO_PTR((unsigned long) u)); | |
323 | if (!user) { | |
324 | log_error("User of session %s not known.", s->id); | |
325 | return -ENOENT; | |
326 | } | |
327 | ||
328 | session_set_user(s, user); | |
329 | } | |
a185c5aa LP |
330 | |
331 | if (remote) { | |
332 | k = parse_boolean(remote); | |
333 | if (k >= 0) | |
334 | s->remote = k; | |
335 | } | |
336 | ||
9418f147 | 337 | if (seat && !s->seat) { |
a185c5aa LP |
338 | Seat *o; |
339 | ||
340 | o = hashmap_get(s->manager->seats, seat); | |
341 | if (o) | |
342 | seat_attach_session(o, s); | |
343 | } | |
344 | ||
bf7825ae | 345 | if (vtnr && s->seat && seat_has_vts(s->seat)) { |
a185c5aa LP |
346 | int v; |
347 | ||
348 | k = safe_atoi(vtnr, &v); | |
349 | if (k >= 0 && v >= 1) | |
350 | s->vtnr = v; | |
351 | } | |
352 | ||
353 | if (leader) { | |
f8e2fb7b LP |
354 | k = parse_pid(leader, &s->leader); |
355 | if (k >= 0) | |
356 | audit_session_from_pid(s->leader, &s->audit_id); | |
a185c5aa LP |
357 | } |
358 | ||
a91e4e53 LP |
359 | if (type) { |
360 | SessionType t; | |
361 | ||
362 | t = session_type_from_string(type); | |
363 | if (t >= 0) | |
364 | s->type = t; | |
365 | } | |
366 | ||
55efac6c LP |
367 | if (class) { |
368 | SessionClass c; | |
369 | ||
370 | c = session_class_from_string(class); | |
371 | if (c >= 0) | |
372 | s->class = c; | |
373 | } | |
374 | ||
b4f78aea LP |
375 | if (s->fifo_path) { |
376 | int fd; | |
377 | ||
378 | /* If we open an unopened pipe for reading we will not | |
379 | get an EOF. to trigger an EOF we hence open it for | |
380 | reading, but close it right-away which then will | |
381 | trigger the EOF. */ | |
382 | ||
383 | fd = session_create_fifo(s); | |
384 | if (fd >= 0) | |
385 | close_nointr_nofail(fd); | |
386 | } | |
387 | ||
9444b1f2 LP |
388 | if (realtime) { |
389 | unsigned long long l; | |
390 | if (sscanf(realtime, "%llu", &l) > 0) | |
391 | s->timestamp.realtime = l; | |
392 | } | |
393 | ||
394 | if (monotonic) { | |
395 | unsigned long long l; | |
396 | if (sscanf(monotonic, "%llu", &l) > 0) | |
397 | s->timestamp.monotonic = l; | |
398 | } | |
a185c5aa | 399 | |
6d33772f DH |
400 | if (controller) { |
401 | if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0) | |
402 | session_set_controller(s, controller, false); | |
90a18413 DH |
403 | else |
404 | session_restore_vt(s); | |
6d33772f DH |
405 | } |
406 | ||
a185c5aa | 407 | return r; |
20263082 LP |
408 | } |
409 | ||
410 | int session_activate(Session *s) { | |
d7bd01b5 DH |
411 | unsigned int num_pending; |
412 | ||
20263082 | 413 | assert(s); |
9444b1f2 | 414 | assert(s->user); |
20263082 | 415 | |
20263082 LP |
416 | if (!s->seat) |
417 | return -ENOTSUP; | |
418 | ||
419 | if (s->seat->active == s) | |
420 | return 0; | |
421 | ||
d7bd01b5 DH |
422 | /* on seats with VTs, we let VTs manage session-switching */ |
423 | if (seat_has_vts(s->seat)) { | |
424 | if (s->vtnr <= 0) | |
425 | return -ENOTSUP; | |
426 | ||
427 | return chvt(s->vtnr); | |
428 | } | |
429 | ||
430 | /* On seats without VTs, we implement session-switching in logind. We | |
431 | * try to pause all session-devices and wait until the session | |
432 | * controller acknowledged them. Once all devices are asleep, we simply | |
433 | * switch the active session and be done. | |
434 | * We save the session we want to switch to in seat->pending_switch and | |
435 | * seat_complete_switch() will perform the final switch. */ | |
436 | ||
437 | s->seat->pending_switch = s; | |
438 | ||
439 | /* if no devices are running, immediately perform the session switch */ | |
440 | num_pending = session_device_try_pause_all(s); | |
441 | if (!num_pending) | |
442 | seat_complete_switch(s->seat); | |
20263082 | 443 | |
d7bd01b5 | 444 | return 0; |
20263082 LP |
445 | } |
446 | ||
20263082 | 447 | static int session_link_x11_socket(Session *s) { |
5af726cc ZJS |
448 | _cleanup_free_ char *t = NULL, *f = NULL; |
449 | char *c; | |
20263082 LP |
450 | size_t k; |
451 | ||
452 | assert(s); | |
453 | assert(s->user); | |
454 | assert(s->user->runtime_path); | |
455 | ||
456 | if (s->user->display) | |
457 | return 0; | |
458 | ||
4d6d6518 | 459 | if (!s->display || !display_is_local(s->display)) |
20263082 LP |
460 | return 0; |
461 | ||
462 | k = strspn(s->display+1, "0123456789"); | |
463 | f = new(char, sizeof("/tmp/.X11-unix/X") + k); | |
0d0f0c50 SL |
464 | if (!f) |
465 | return log_oom(); | |
20263082 LP |
466 | |
467 | c = stpcpy(f, "/tmp/.X11-unix/X"); | |
468 | memcpy(c, s->display+1, k); | |
469 | c[k] = 0; | |
470 | ||
471 | if (access(f, F_OK) < 0) { | |
6ccf7562 | 472 | log_warning("Session %s has display %s with non-existing socket %s.", s->id, s->display, f); |
20263082 LP |
473 | return -ENOENT; |
474 | } | |
475 | ||
c9d8629b LP |
476 | /* Note that this cannot be in a subdir to avoid |
477 | * vulnerabilities since we are privileged but the runtime | |
478 | * path is owned by the user */ | |
479 | ||
fc3c1c6e | 480 | t = strappend(s->user->runtime_path, "/X11-display"); |
5af726cc | 481 | if (!t) |
0d0f0c50 | 482 | return log_oom(); |
20263082 LP |
483 | |
484 | if (link(f, t) < 0) { | |
485 | if (errno == EEXIST) { | |
486 | unlink(t); | |
487 | ||
488 | if (link(f, t) >= 0) | |
489 | goto done; | |
490 | } | |
491 | ||
492 | if (symlink(f, t) < 0) { | |
493 | ||
494 | if (errno == EEXIST) { | |
495 | unlink(t); | |
496 | ||
497 | if (symlink(f, t) >= 0) | |
498 | goto done; | |
499 | } | |
500 | ||
501 | log_error("Failed to link %s to %s: %m", f, t); | |
20263082 LP |
502 | return -errno; |
503 | } | |
504 | } | |
505 | ||
506 | done: | |
507 | log_info("Linked %s to %s.", f, t); | |
20263082 LP |
508 | s->user->display = s; |
509 | ||
510 | return 0; | |
511 | } | |
512 | ||
fb6becb4 | 513 | static int session_start_scope(Session *s) { |
98a28fef LP |
514 | int r; |
515 | ||
516 | assert(s); | |
9444b1f2 | 517 | assert(s->user); |
fb6becb4 | 518 | assert(s->user->slice); |
98a28fef | 519 | |
fb6becb4 | 520 | if (!s->scope) { |
cc377381 | 521 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
d0af76e6 | 522 | _cleanup_free_ char *description = NULL; |
405e0255 | 523 | const char *kill_mode; |
d0af76e6 LP |
524 | char *scope, *job; |
525 | ||
405e0255 LP |
526 | description = strjoin("Session ", s->id, " of user ", s->user->name, NULL); |
527 | if (!description) | |
528 | return log_oom(); | |
529 | ||
d0af76e6 LP |
530 | scope = strjoin("session-", s->id, ".scope", NULL); |
531 | if (!scope) | |
ae018d9b LP |
532 | return log_oom(); |
533 | ||
405e0255 | 534 | kill_mode = manager_shall_kill(s->manager, s->user->name) ? "control-group" : "none"; |
98a28fef | 535 | |
405e0255 | 536 | r = manager_start_scope(s->manager, scope, s->leader, s->user->slice, description, "systemd-user-sessions.service", kill_mode, &error, &job); |
d0af76e6 | 537 | if (r < 0) { |
042f5988 | 538 | log_error("Failed to start session scope %s: %s %s", |
cc377381 | 539 | scope, bus_error_message(&error, r), error.name); |
d0af76e6 | 540 | free(scope); |
f2d4f98d | 541 | return r; |
d0af76e6 LP |
542 | } else { |
543 | s->scope = scope; | |
544 | ||
545 | free(s->scope_job); | |
546 | s->scope_job = job; | |
547 | } | |
20263082 LP |
548 | } |
549 | ||
d0af76e6 LP |
550 | if (s->scope) |
551 | hashmap_put(s->manager->session_units, s->scope, s); | |
552 | ||
20263082 LP |
553 | return 0; |
554 | } | |
555 | ||
556 | int session_start(Session *s) { | |
557 | int r; | |
558 | ||
559 | assert(s); | |
9444b1f2 LP |
560 | |
561 | if (!s->user) | |
562 | return -ESTALE; | |
20263082 | 563 | |
9418f147 LP |
564 | if (s->started) |
565 | return 0; | |
566 | ||
ed18b08b LP |
567 | r = user_start(s->user); |
568 | if (r < 0) | |
569 | return r; | |
570 | ||
fb6becb4 LP |
571 | /* Create cgroup */ |
572 | r = session_start_scope(s); | |
573 | if (r < 0) | |
574 | return r; | |
575 | ||
877d54e9 | 576 | log_struct(s->type == SESSION_TTY || s->type == SESSION_X11 ? LOG_INFO : LOG_DEBUG, |
1ca6783f | 577 | MESSAGE_ID(SD_MESSAGE_SESSION_START), |
877d54e9 LP |
578 | "SESSION_ID=%s", s->id, |
579 | "USER_ID=%s", s->user->name, | |
580 | "LEADER=%lu", (unsigned long) s->leader, | |
581 | "MESSAGE=New session %s of user %s.", s->id, s->user->name, | |
582 | NULL); | |
98a28fef | 583 | |
20263082 LP |
584 | /* Create X11 symlink */ |
585 | session_link_x11_socket(s); | |
14c3baca | 586 | |
9444b1f2 LP |
587 | if (!dual_timestamp_is_set(&s->timestamp)) |
588 | dual_timestamp_get(&s->timestamp); | |
14c3baca | 589 | |
e9816c48 LP |
590 | if (s->seat) |
591 | seat_read_active_vt(s->seat); | |
592 | ||
9418f147 LP |
593 | s->started = true; |
594 | ||
e9816c48 LP |
595 | /* Save session data */ |
596 | session_save(s); | |
7f7bb946 | 597 | user_save(s->user); |
e9816c48 | 598 | |
da119395 LP |
599 | session_send_signal(s, true); |
600 | ||
9418f147 | 601 | if (s->seat) { |
7f7bb946 LP |
602 | seat_save(s->seat); |
603 | ||
9418f147 | 604 | if (s->seat->active == s) |
cc377381 | 605 | seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL); |
9418f147 | 606 | else |
cc377381 | 607 | seat_send_changed(s->seat, "Sessions", NULL); |
9418f147 LP |
608 | } |
609 | ||
cc377381 | 610 | user_send_changed(s->user, "Sessions", NULL); |
9418f147 | 611 | |
20263082 LP |
612 | return 0; |
613 | } | |
614 | ||
fb6becb4 | 615 | static int session_stop_scope(Session *s) { |
cc377381 | 616 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
fb6becb4 | 617 | char *job; |
20263082 | 618 | int r; |
20263082 LP |
619 | |
620 | assert(s); | |
621 | ||
fb6becb4 LP |
622 | if (!s->scope) |
623 | return 0; | |
9b221b63 | 624 | |
fb6becb4 LP |
625 | r = manager_stop_unit(s->manager, s->scope, &error, &job); |
626 | if (r < 0) { | |
cc377381 | 627 | log_error("Failed to stop session scope: %s", bus_error_message(&error, r)); |
fb6becb4 | 628 | return r; |
20263082 LP |
629 | } |
630 | ||
fb6becb4 LP |
631 | free(s->scope_job); |
632 | s->scope_job = job; | |
20263082 | 633 | |
9b221b63 | 634 | return 0; |
20263082 LP |
635 | } |
636 | ||
637 | static int session_unlink_x11_socket(Session *s) { | |
5af726cc | 638 | _cleanup_free_ char *t = NULL; |
20263082 LP |
639 | int r; |
640 | ||
641 | assert(s); | |
642 | assert(s->user); | |
643 | ||
644 | if (s->user->display != s) | |
645 | return 0; | |
646 | ||
647 | s->user->display = NULL; | |
648 | ||
fc3c1c6e | 649 | t = strappend(s->user->runtime_path, "/X11-display"); |
0d0f0c50 SL |
650 | if (!t) |
651 | return log_oom(); | |
20263082 LP |
652 | |
653 | r = unlink(t); | |
20263082 LP |
654 | return r < 0 ? -errno : 0; |
655 | } | |
656 | ||
657 | int session_stop(Session *s) { | |
405e0255 LP |
658 | int r; |
659 | ||
660 | assert(s); | |
661 | ||
662 | if (!s->user) | |
663 | return -ESTALE; | |
664 | ||
665 | /* Kill cgroup */ | |
666 | r = session_stop_scope(s); | |
667 | ||
668 | session_save(s); | |
cc377381 | 669 | user_save(s->user); |
405e0255 LP |
670 | |
671 | return r; | |
672 | } | |
673 | ||
674 | int session_finalize(Session *s) { | |
675 | int r = 0; | |
118ecf32 | 676 | SessionDevice *sd; |
20263082 LP |
677 | |
678 | assert(s); | |
679 | ||
9444b1f2 LP |
680 | if (!s->user) |
681 | return -ESTALE; | |
682 | ||
ed18b08b | 683 | if (s->started) |
877d54e9 | 684 | log_struct(s->type == SESSION_TTY || s->type == SESSION_X11 ? LOG_INFO : LOG_DEBUG, |
1ca6783f | 685 | MESSAGE_ID(SD_MESSAGE_SESSION_STOP), |
877d54e9 LP |
686 | "SESSION_ID=%s", s->id, |
687 | "USER_ID=%s", s->user->name, | |
688 | "LEADER=%lu", (unsigned long) s->leader, | |
689 | "MESSAGE=Removed session %s.", s->id, | |
690 | NULL); | |
98a28fef | 691 | |
118ecf32 DH |
692 | /* Kill session devices */ |
693 | while ((sd = hashmap_first(s->devices))) | |
694 | session_device_free(sd); | |
695 | ||
20263082 LP |
696 | /* Remove X11 symlink */ |
697 | session_unlink_x11_socket(s); | |
698 | ||
d2f92cdf LP |
699 | unlink(s->state_file); |
700 | session_add_to_gc_queue(s); | |
ed18b08b | 701 | user_add_to_gc_queue(s->user); |
14c3baca | 702 | |
405e0255 | 703 | if (s->started) { |
ed18b08b | 704 | session_send_signal(s, false); |
405e0255 LP |
705 | s->started = false; |
706 | } | |
50fb9793 | 707 | |
9418f147 LP |
708 | if (s->seat) { |
709 | if (s->seat->active == s) | |
710 | seat_set_active(s->seat, NULL); | |
711 | ||
cc377381 | 712 | seat_send_changed(s->seat, "Sessions", NULL); |
23bd3b62 | 713 | seat_save(s->seat); |
9418f147 LP |
714 | } |
715 | ||
cc377381 | 716 | user_send_changed(s->user, "Sessions", NULL); |
23bd3b62 | 717 | user_save(s->user); |
9418f147 | 718 | |
20263082 LP |
719 | return r; |
720 | } | |
721 | ||
722 | bool session_is_active(Session *s) { | |
723 | assert(s); | |
724 | ||
725 | if (!s->seat) | |
726 | return true; | |
727 | ||
728 | return s->seat->active == s; | |
729 | } | |
730 | ||
23406ce5 LP |
731 | static int get_tty_atime(const char *tty, usec_t *atime) { |
732 | _cleanup_free_ char *p = NULL; | |
a185c5aa | 733 | struct stat st; |
23406ce5 LP |
734 | |
735 | assert(tty); | |
736 | assert(atime); | |
737 | ||
738 | if (!path_is_absolute(tty)) { | |
739 | p = strappend("/dev/", tty); | |
740 | if (!p) | |
741 | return -ENOMEM; | |
742 | ||
743 | tty = p; | |
744 | } else if (!path_startswith(tty, "/dev/")) | |
745 | return -ENOENT; | |
746 | ||
747 | if (lstat(tty, &st) < 0) | |
748 | return -errno; | |
749 | ||
750 | *atime = timespec_load(&st.st_atim); | |
751 | return 0; | |
752 | } | |
753 | ||
754 | static int get_process_ctty_atime(pid_t pid, usec_t *atime) { | |
755 | _cleanup_free_ char *p = NULL; | |
756 | int r; | |
757 | ||
758 | assert(pid > 0); | |
759 | assert(atime); | |
760 | ||
761 | r = get_ctty(pid, NULL, &p); | |
762 | if (r < 0) | |
763 | return r; | |
764 | ||
765 | return get_tty_atime(p, atime); | |
766 | } | |
767 | ||
768 | int session_get_idle_hint(Session *s, dual_timestamp *t) { | |
23406ce5 LP |
769 | usec_t atime = 0, n; |
770 | int r; | |
a185c5aa LP |
771 | |
772 | assert(s); | |
773 | ||
23406ce5 | 774 | /* Explicit idle hint is set */ |
a185c5aa LP |
775 | if (s->idle_hint) { |
776 | if (t) | |
777 | *t = s->idle_hint_timestamp; | |
778 | ||
779 | return s->idle_hint; | |
780 | } | |
781 | ||
0762eaa3 | 782 | /* Graphical sessions should really implement a real |
23406ce5 LP |
783 | * idle hint logic */ |
784 | if (s->display) | |
a185c5aa LP |
785 | goto dont_know; |
786 | ||
23406ce5 LP |
787 | /* For sessions with an explicitly configured tty, let's check |
788 | * its atime */ | |
789 | if (s->tty) { | |
790 | r = get_tty_atime(s->tty, &atime); | |
791 | if (r >= 0) | |
792 | goto found_atime; | |
793 | } | |
a185c5aa | 794 | |
23406ce5 LP |
795 | /* For sessions with a leader but no explicitly configured |
796 | * tty, let's check the controlling tty of the leader */ | |
797 | if (s->leader > 0) { | |
798 | r = get_process_ctty_atime(s->leader, &atime); | |
799 | if (r >= 0) | |
800 | goto found_atime; | |
a185c5aa LP |
801 | } |
802 | ||
a185c5aa LP |
803 | dont_know: |
804 | if (t) | |
805 | *t = s->idle_hint_timestamp; | |
806 | ||
807 | return 0; | |
23406ce5 LP |
808 | |
809 | found_atime: | |
810 | if (t) | |
811 | dual_timestamp_from_realtime(t, atime); | |
812 | ||
813 | n = now(CLOCK_REALTIME); | |
814 | ||
815 | if (s->manager->idle_action_usec <= 0) | |
816 | return 0; | |
817 | ||
818 | return atime + s->manager->idle_action_usec <= n; | |
a185c5aa LP |
819 | } |
820 | ||
bef422ae LP |
821 | void session_set_idle_hint(Session *s, bool b) { |
822 | assert(s); | |
823 | ||
824 | if (s->idle_hint == b) | |
825 | return; | |
826 | ||
827 | s->idle_hint = b; | |
828 | dual_timestamp_get(&s->idle_hint_timestamp); | |
9418f147 | 829 | |
cc377381 | 830 | session_send_changed(s, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); |
9418f147 LP |
831 | |
832 | if (s->seat) | |
cc377381 LP |
833 | seat_send_changed(s->seat, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); |
834 | ||
835 | user_send_changed(s->user, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); | |
836 | manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); | |
837 | } | |
838 | ||
839 | static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) { | |
840 | Session *s = userdata; | |
841 | ||
842 | assert(s); | |
843 | assert(s->fifo_fd == fd); | |
844 | ||
845 | /* EOF on the FIFO means the session died abnormally. */ | |
846 | ||
847 | session_remove_fifo(s); | |
848 | session_stop(s); | |
849 | ||
850 | return 1; | |
bef422ae LP |
851 | } |
852 | ||
932e3ee7 LP |
853 | int session_create_fifo(Session *s) { |
854 | int r; | |
855 | ||
31b79c2b LP |
856 | assert(s); |
857 | ||
b4f78aea | 858 | /* Create FIFO */ |
932e3ee7 | 859 | if (!s->fifo_path) { |
d2e54fae | 860 | r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0); |
e6061ab2 LP |
861 | if (r < 0) |
862 | return r; | |
863 | ||
932e3ee7 LP |
864 | if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0) |
865 | return -ENOMEM; | |
31b79c2b | 866 | |
932e3ee7 LP |
867 | if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST) |
868 | return -errno; | |
869 | } | |
31b79c2b | 870 | |
932e3ee7 | 871 | /* Open reading side */ |
b4f78aea | 872 | if (s->fifo_fd < 0) { |
b4f78aea LP |
873 | s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY); |
874 | if (s->fifo_fd < 0) | |
875 | return -errno; | |
876 | ||
cc377381 LP |
877 | } |
878 | ||
879 | if (!s->fifo_event_source) { | |
880 | r = sd_event_add_io(s->manager->event, s->fifo_fd, 0, session_dispatch_fifo, s, &s->fifo_event_source); | |
b4f78aea LP |
881 | if (r < 0) |
882 | return r; | |
883 | ||
718db961 | 884 | r = sd_event_source_set_priority(s->fifo_event_source, SD_EVENT_PRIORITY_IDLE); |
cc377381 LP |
885 | if (r < 0) |
886 | return r; | |
b4f78aea | 887 | } |
932e3ee7 LP |
888 | |
889 | /* Open writing side */ | |
890 | r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY); | |
891 | if (r < 0) | |
892 | return -errno; | |
31b79c2b | 893 | |
932e3ee7 LP |
894 | return r; |
895 | } | |
896 | ||
897 | void session_remove_fifo(Session *s) { | |
898 | assert(s); | |
899 | ||
cc377381 LP |
900 | if (s->fifo_event_source) |
901 | s->fifo_event_source = sd_event_source_unref(s->fifo_event_source); | |
902 | ||
932e3ee7 | 903 | if (s->fifo_fd >= 0) { |
932e3ee7 LP |
904 | close_nointr_nofail(s->fifo_fd); |
905 | s->fifo_fd = -1; | |
906 | } | |
907 | ||
908 | if (s->fifo_path) { | |
909 | unlink(s->fifo_path); | |
910 | free(s->fifo_path); | |
911 | s->fifo_path = NULL; | |
912 | } | |
31b79c2b LP |
913 | } |
914 | ||
cc377381 | 915 | bool session_check_gc(Session *s, bool drop_not_started) { |
20263082 LP |
916 | int r; |
917 | ||
918 | assert(s); | |
919 | ||
4a4b033f | 920 | if (drop_not_started && !s->started) |
cc377381 | 921 | return false; |
932e3ee7 | 922 | |
9444b1f2 | 923 | if (!s->user) |
cc377381 | 924 | return false; |
9444b1f2 | 925 | |
932e3ee7 | 926 | if (s->fifo_fd >= 0) { |
932e3ee7 | 927 | r = pipe_eof(s->fifo_fd); |
20263082 | 928 | if (r < 0) |
cc377381 | 929 | return true; |
20263082 | 930 | |
14c3baca | 931 | if (r == 0) |
cc377381 | 932 | return true; |
20263082 LP |
933 | } |
934 | ||
cc377381 LP |
935 | if (s->scope_job && manager_job_is_active(s->manager, s->scope_job)) |
936 | return true; | |
20263082 | 937 | |
cc377381 LP |
938 | if (s->scope && manager_unit_is_active(s->manager, s->scope)) |
939 | return true; | |
20263082 | 940 | |
cc377381 | 941 | return false; |
20263082 LP |
942 | } |
943 | ||
14c3baca LP |
944 | void session_add_to_gc_queue(Session *s) { |
945 | assert(s); | |
946 | ||
947 | if (s->in_gc_queue) | |
948 | return; | |
949 | ||
71fda00f | 950 | LIST_PREPEND(gc_queue, s->manager->session_gc_queue, s); |
14c3baca LP |
951 | s->in_gc_queue = true; |
952 | } | |
953 | ||
0604381b LP |
954 | SessionState session_get_state(Session *s) { |
955 | assert(s); | |
956 | ||
405e0255 LP |
957 | if (s->closing) |
958 | return SESSION_CLOSING; | |
959 | ||
fb6becb4 | 960 | if (s->scope_job) |
405e0255 | 961 | return SESSION_OPENING; |
fb6becb4 | 962 | |
0604381b LP |
963 | if (s->fifo_fd < 0) |
964 | return SESSION_CLOSING; | |
965 | ||
966 | if (session_is_active(s)) | |
967 | return SESSION_ACTIVE; | |
968 | ||
969 | return SESSION_ONLINE; | |
970 | } | |
971 | ||
de07ab16 | 972 | int session_kill(Session *s, KillWho who, int signo) { |
de07ab16 LP |
973 | assert(s); |
974 | ||
fb6becb4 | 975 | if (!s->scope) |
de07ab16 LP |
976 | return -ESRCH; |
977 | ||
fb6becb4 | 978 | return manager_kill_unit(s->manager, s->scope, who, signo, NULL); |
de07ab16 LP |
979 | } |
980 | ||
90a18413 DH |
981 | static int session_open_vt(Session *s) { |
982 | char path[128]; | |
983 | ||
984 | if (s->vtnr <= 0) | |
985 | return -1; | |
986 | ||
987 | if (s->vtfd >= 0) | |
988 | return s->vtfd; | |
989 | ||
990 | sprintf(path, "/dev/tty%d", s->vtnr); | |
991 | s->vtfd = open(path, O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY); | |
992 | if (s->vtfd < 0) { | |
993 | log_error("cannot open VT %s of session %s: %m", path, s->id); | |
994 | return -1; | |
995 | } | |
996 | ||
997 | return s->vtfd; | |
998 | } | |
999 | ||
1000 | static int session_vt_fn(sd_event_source *source, const struct signalfd_siginfo *si, void *data) { | |
1001 | Session *s = data; | |
1002 | ||
1003 | if (s->vtfd >= 0) | |
1004 | ioctl(s->vtfd, VT_RELDISP, 1); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | void session_mute_vt(Session *s) { | |
1010 | int vt, r; | |
1011 | struct vt_mode mode = { 0 }; | |
1012 | sigset_t mask; | |
1013 | ||
1014 | vt = session_open_vt(s); | |
1015 | if (vt < 0) | |
1016 | return; | |
1017 | ||
1018 | r = ioctl(vt, KDSKBMODE, K_OFF); | |
1019 | if (r < 0) | |
1020 | goto error; | |
1021 | ||
1022 | r = ioctl(vt, KDSETMODE, KD_GRAPHICS); | |
1023 | if (r < 0) | |
1024 | goto error; | |
1025 | ||
1026 | sigemptyset(&mask); | |
1027 | sigaddset(&mask, SIGUSR1); | |
1028 | sigprocmask(SIG_BLOCK, &mask, NULL); | |
1029 | ||
1030 | r = sd_event_add_signal(s->manager->event, SIGUSR1, session_vt_fn, s, &s->vt_source); | |
1031 | if (r < 0) | |
1032 | goto error; | |
1033 | ||
1034 | /* Oh, thanks to the VT layer, VT_AUTO does not work with KD_GRAPHICS. | |
1035 | * So we need a dummy handler here which just acknowledges *all* VT | |
1036 | * switch requests. */ | |
1037 | mode.mode = VT_PROCESS; | |
1038 | mode.relsig = SIGUSR1; | |
1039 | mode.acqsig = SIGUSR1; | |
1040 | r = ioctl(vt, VT_SETMODE, &mode); | |
1041 | if (r < 0) | |
1042 | goto error; | |
1043 | ||
1044 | return; | |
1045 | ||
1046 | error: | |
1047 | log_error("cannot mute VT %d for session %s (%d/%d)", s->vtnr, s->id, r, errno); | |
1048 | session_restore_vt(s); | |
1049 | } | |
1050 | ||
1051 | void session_restore_vt(Session *s) { | |
1052 | _cleanup_free_ char *utf8; | |
1053 | int vt, kb = K_XLATE; | |
1054 | struct vt_mode mode = { 0 }; | |
1055 | ||
1056 | vt = session_open_vt(s); | |
1057 | if (vt < 0) | |
1058 | return; | |
1059 | ||
1060 | sd_event_source_unref(s->vt_source); | |
1061 | s->vt_source = NULL; | |
1062 | ||
1063 | ioctl(vt, KDSETMODE, KD_TEXT); | |
1064 | ||
1065 | if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && *utf8 == '1') | |
1066 | kb = K_UNICODE; | |
1067 | ioctl(vt, KDSKBMODE, kb); | |
1068 | ||
1069 | mode.mode = VT_AUTO; | |
1070 | ioctl(vt, VT_SETMODE, &mode); | |
1071 | ||
1072 | close_nointr_nofail(vt); | |
1073 | s->vtfd = -1; | |
1074 | } | |
1075 | ||
cc377381 | 1076 | bool session_is_controller(Session *s, const char *sender) { |
ae5e06bd DH |
1077 | assert(s); |
1078 | ||
1079 | return streq_ptr(s->controller, sender); | |
1080 | } | |
1081 | ||
6d33772f DH |
1082 | static void session_swap_controller(Session *s, char *name) { |
1083 | SessionDevice *sd; | |
1084 | ||
1085 | if (s->controller) { | |
1086 | manager_drop_busname(s->manager, s->controller); | |
1087 | free(s->controller); | |
1088 | s->controller = NULL; | |
1089 | ||
1090 | /* Drop all devices as they're now unused. Do that after the | |
1091 | * controller is released to avoid sending out useles | |
1092 | * dbus signals. */ | |
1093 | while ((sd = hashmap_first(s->devices))) | |
1094 | session_device_free(sd); | |
90a18413 DH |
1095 | |
1096 | if (!name) | |
1097 | session_restore_vt(s); | |
6d33772f DH |
1098 | } |
1099 | ||
1100 | s->controller = name; | |
1101 | session_save(s); | |
1102 | } | |
1103 | ||
ae5e06bd DH |
1104 | int session_set_controller(Session *s, const char *sender, bool force) { |
1105 | char *t; | |
1106 | int r; | |
1107 | ||
1108 | assert(s); | |
1109 | assert(sender); | |
1110 | ||
1111 | if (session_is_controller(s, sender)) | |
1112 | return 0; | |
1113 | if (s->controller && !force) | |
1114 | return -EBUSY; | |
1115 | ||
1116 | t = strdup(sender); | |
1117 | if (!t) | |
1118 | return -ENOMEM; | |
1119 | ||
1120 | r = manager_watch_busname(s->manager, sender); | |
1121 | if (r) { | |
1122 | free(t); | |
1123 | return r; | |
1124 | } | |
1125 | ||
6d33772f | 1126 | session_swap_controller(s, t); |
ae5e06bd | 1127 | |
90a18413 DH |
1128 | /* When setting a session controller, we forcibly mute the VT and set |
1129 | * it into graphics-mode. Applications can override that by changing | |
1130 | * VT state after calling TakeControl(). However, this serves as a good | |
1131 | * default and well-behaving controllers can now ignore VTs entirely. | |
1132 | * Note that we reset the VT on ReleaseControl() and if the controller | |
1133 | * exits. | |
1134 | * If logind crashes/restarts, we restore the controller during restart | |
1135 | * or reset the VT in case it crashed/exited, too. */ | |
1136 | session_mute_vt(s); | |
1137 | ||
ae5e06bd DH |
1138 | return 0; |
1139 | } | |
1140 | ||
1141 | void session_drop_controller(Session *s) { | |
1142 | assert(s); | |
1143 | ||
1144 | if (!s->controller) | |
1145 | return; | |
1146 | ||
6d33772f | 1147 | session_swap_controller(s, NULL); |
ae5e06bd DH |
1148 | } |
1149 | ||
fb6becb4 LP |
1150 | static const char* const session_state_table[_SESSION_STATE_MAX] = { |
1151 | [SESSION_OPENING] = "opening", | |
0604381b LP |
1152 | [SESSION_ONLINE] = "online", |
1153 | [SESSION_ACTIVE] = "active", | |
1154 | [SESSION_CLOSING] = "closing" | |
1155 | }; | |
1156 | ||
1157 | DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState); | |
1158 | ||
20263082 | 1159 | static const char* const session_type_table[_SESSION_TYPE_MAX] = { |
3f49d45a | 1160 | [SESSION_TTY] = "tty", |
98a28fef | 1161 | [SESSION_X11] = "x11", |
a91e4e53 | 1162 | [SESSION_UNSPECIFIED] = "unspecified" |
20263082 LP |
1163 | }; |
1164 | ||
1165 | DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType); | |
de07ab16 | 1166 | |
55efac6c LP |
1167 | static const char* const session_class_table[_SESSION_CLASS_MAX] = { |
1168 | [SESSION_USER] = "user", | |
1169 | [SESSION_GREETER] = "greeter", | |
e2acb67b LP |
1170 | [SESSION_LOCK_SCREEN] = "lock-screen", |
1171 | [SESSION_BACKGROUND] = "background" | |
55efac6c LP |
1172 | }; |
1173 | ||
1174 | DEFINE_STRING_TABLE_LOOKUP(session_class, SessionClass); | |
1175 | ||
de07ab16 LP |
1176 | static const char* const kill_who_table[_KILL_WHO_MAX] = { |
1177 | [KILL_LEADER] = "leader", | |
1178 | [KILL_ALL] = "all" | |
1179 | }; | |
1180 | ||
1181 | DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho); |