1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2011 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
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
11 (at your option) any later version.
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
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 #include <sys/ioctl.h>
31 #include "sd-messages.h"
34 #include "path-util.h"
38 #include "bus-error.h"
39 #include "logind-session.h"
40 #include "formats-util.h"
41 #include "terminal-util.h"
43 // #define RELEASE_USEC (20*USEC_PER_SEC)
45 static void session_remove_fifo(Session *s);
47 Session* session_new(Manager *m, const char *id) {
52 assert(session_id_valid(id));
58 s->state_file = strappend("/run/systemd/sessions/", id);
64 s->devices = hashmap_new(&devt_hash_ops);
71 s->id = basename(s->state_file);
73 if (hashmap_put(m->sessions, s->id, s) < 0) {
74 hashmap_free(s->devices);
87 void session_free(Session *s) {
93 LIST_REMOVE(gc_queue, s->manager->session_gc_queue, s);
95 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
97 session_remove_fifo(s);
99 session_drop_controller(s);
101 while ((sd = hashmap_first(s->devices)))
102 session_device_free(sd);
104 hashmap_free(s->devices);
107 LIST_REMOVE(sessions_by_user, s->user->sessions, s);
109 if (s->user->display == s)
110 s->user->display = NULL;
114 if (s->seat->active == s)
115 s->seat->active = NULL;
116 if (s->seat->pending_switch == s)
117 s->seat->pending_switch = NULL;
119 seat_evict_position(s->seat, s);
120 LIST_REMOVE(sessions_by_seat, s->seat->sessions, s);
124 hashmap_remove(s->manager->session_units, s->scope);
128 /// elogind does not support systemd scope_jobs
133 sd_bus_message_unref(s->create_message);
137 free(s->remote_host);
138 free(s->remote_user);
142 hashmap_remove(s->manager->sessions, s->id);
148 void session_set_user(Session *s, User *u) {
153 LIST_PREPEND(sessions_by_user, u->sessions, s);
156 int session_save(Session *s) {
157 _cleanup_free_ char *temp_path = NULL;
158 _cleanup_fclose_ FILE *f = NULL;
169 r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
173 r = fopen_temporary(s->state_file, &f, &temp_path);
179 fchmod(fileno(f), 0644);
182 "# This is private data. Do not parse.\n"
190 session_is_active(s),
191 session_state_to_string(session_get_state(s)),
195 fprintf(f, "TYPE=%s\n", session_type_to_string(s->type));
198 fprintf(f, "CLASS=%s\n", session_class_to_string(s->class));
201 fprintf(f, "SCOPE=%s\n", s->scope);
202 /// elogind does not support systemd scope_jobs
205 fprintf(f, "SCOPE_JOB=%s\n", s->scope_job);
209 fprintf(f, "FIFO=%s\n", s->fifo_path);
212 fprintf(f, "SEAT=%s\n", s->seat->id);
215 fprintf(f, "TTY=%s\n", s->tty);
218 fprintf(f, "DISPLAY=%s\n", s->display);
220 if (s->remote_host) {
221 _cleanup_free_ char *escaped;
223 escaped = cescape(s->remote_host);
229 fprintf(f, "REMOTE_HOST=%s\n", escaped);
232 if (s->remote_user) {
233 _cleanup_free_ char *escaped;
235 escaped = cescape(s->remote_user);
241 fprintf(f, "REMOTE_USER=%s\n", escaped);
245 _cleanup_free_ char *escaped;
247 escaped = cescape(s->service);
253 fprintf(f, "SERVICE=%s\n", escaped);
257 _cleanup_free_ char *escaped;
260 escaped = cescape(s->desktop);
266 fprintf(f, "DESKTOP=%s\n", escaped);
269 if (s->seat && seat_has_vts(s->seat))
270 fprintf(f, "VTNR=%u\n", s->vtnr);
273 fprintf(f, "POSITION=%u\n", s->position);
276 fprintf(f, "LEADER="PID_FMT"\n", s->leader);
279 fprintf(f, "AUDIT=%"PRIu32"\n", s->audit_id);
281 if (dual_timestamp_is_set(&s->timestamp))
283 "REALTIME="USEC_FMT"\n"
284 "MONOTONIC="USEC_FMT"\n",
285 s->timestamp.realtime,
286 s->timestamp.monotonic);
289 fprintf(f, "CONTROLLER=%s\n", s->controller);
291 r = fflush_and_check(f);
295 if (rename(temp_path, s->state_file) < 0) {
303 (void) unlink(s->state_file);
306 (void) unlink(temp_path);
308 return log_error_errno(r, "Failed to save session data %s: %m", s->state_file);
312 int session_load(Session *s) {
313 _cleanup_free_ char *remote = NULL,
330 r = parse_env_file(s->state_file, NEWLINE,
333 /// elogind does not support systemd scope_jobs
335 "SCOPE_JOB", &s->scope_job,
337 "FIFO", &s->fifo_path,
340 "DISPLAY", &s->display,
341 "REMOTE_HOST", &s->remote_host,
342 "REMOTE_USER", &s->remote_user,
343 "SERVICE", &s->service,
344 "DESKTOP", &s->desktop,
347 "POSITION", &position,
352 "REALTIME", &realtime,
353 "MONOTONIC", &monotonic,
354 "CONTROLLER", &controller,
358 return log_error_errno(r, "Failed to read %s: %m", s->state_file);
365 log_error("UID not specified for session %s", s->id);
369 r = parse_uid(uid, &u);
371 log_error("Failed to parse UID value %s for session %s.", uid, s->id);
375 user = hashmap_get(s->manager->users, UID_TO_PTR(u));
377 log_error("User of session %s not known.", s->id);
381 session_set_user(s, user);
385 k = parse_boolean(remote);
391 safe_atou(vtnr, &s->vtnr);
393 if (seat && !s->seat) {
396 o = hashmap_get(s->manager->seats, seat);
398 r = seat_attach_session(o, s);
400 log_error("Cannot attach session %s to seat %s", s->id, seat);
403 if (!s->seat || !seat_has_vts(s->seat))
406 if (position && s->seat) {
409 safe_atou(position, &npos);
410 seat_claim_position(s->seat, s, npos);
414 k = parse_pid(leader, &s->leader);
416 audit_session_from_pid(s->leader, &s->audit_id);
422 t = session_type_from_string(type);
430 c = session_class_from_string(class);
435 if (state && streq(state, "closing"))
441 /* If we open an unopened pipe for reading we will not
442 get an EOF. to trigger an EOF we hence open it for
443 writing, but close it right away which then will
444 trigger the EOF. This will happen immediately if no
445 other process has the FIFO open for writing, i. e.
446 when the session died before logind (re)started. */
448 fd = session_create_fifo(s);
453 unsigned long long l;
454 if (sscanf(realtime, "%llu", &l) > 0)
455 s->timestamp.realtime = l;
459 unsigned long long l;
460 if (sscanf(monotonic, "%llu", &l) > 0)
461 s->timestamp.monotonic = l;
465 if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0)
466 session_set_controller(s, controller, false);
468 session_restore_vt(s);
474 int session_activate(Session *s) {
475 unsigned int num_pending;
483 if (s->seat->active == s)
486 /* on seats with VTs, we let VTs manage session-switching */
487 if (seat_has_vts(s->seat)) {
491 return chvt(s->vtnr);
494 /* On seats without VTs, we implement session-switching in logind. We
495 * try to pause all session-devices and wait until the session
496 * controller acknowledged them. Once all devices are asleep, we simply
497 * switch the active session and be done.
498 * We save the session we want to switch to in seat->pending_switch and
499 * seat_complete_switch() will perform the final switch. */
501 s->seat->pending_switch = s;
503 /* if no devices are running, immediately perform the session switch */
504 num_pending = session_device_try_pause_all(s);
506 seat_complete_switch(s->seat);
511 /// UNNEEDED by elogind
513 static int session_start_scope(Session *s) {
518 assert(s->user->slice);
521 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
522 _cleanup_free_ char *description = NULL;
523 char *scope = NULL; //, *job = NULL;
525 description = strjoin("Session ", s->id, " of user ", s->user->name, NULL);
529 scope = strjoin("session-", s->id, ".scope", NULL);
533 r = manager_start_scope(s->manager, scope, s->leader, s->user->slice, description, "systemd-logind.service", "systemd-user-sessions.service", &error, &job);
535 log_error("Failed to start session scope %s: %s %s",
536 scope, bus_error_message(&error, r), error.name);
548 hashmap_put(s->manager->session_units, s->scope, s);
554 static int session_start_cgroup(Session *s) {
559 assert(s->leader > 0);
561 /* First, create our own group */
562 r = cg_create(SYSTEMD_CGROUP_CONTROLLER, s->id);
564 return log_error_errno(r, "Failed to create cgroup %s: %m", s->id);
566 r = cg_attach(SYSTEMD_CGROUP_CONTROLLER, s->id, s->leader);
568 log_warning_errno(r, "Failed to attach PID %d to cgroup %s: %m", s->leader, s->id);
574 int session_start(Session *s) {
585 r = user_start(s->user);
590 /// elogind does its own session management without systemd units,
591 /// slices and scopes
593 r = session_start_scope(s);
595 r = session_start_cgroup(s);
600 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
601 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_START),
602 "SESSION_ID=%s", s->id,
603 "USER_ID=%s", s->user->name,
604 "LEADER="PID_FMT, s->leader,
605 LOG_MESSAGE("New session %s of user %s.", s->id, s->user->name),
608 if (!dual_timestamp_is_set(&s->timestamp))
609 dual_timestamp_get(&s->timestamp);
612 seat_read_active_vt(s->seat);
616 user_elect_display(s->user);
625 session_send_signal(s, true);
626 user_send_changed(s->user, "Sessions", "Display", NULL);
628 if (s->seat->active == s)
629 seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL);
631 seat_send_changed(s->seat, "Sessions", NULL);
637 /// UNNEEDED by elogind
639 static int session_stop_scope(Session *s, bool force) {
640 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
649 if (force || manager_shall_kill(s->manager, s->user->name)) {
650 r = manager_stop_unit(s->manager, s->scope, &error, &job);
652 log_error("Failed to stop session scope: %s", bus_error_message(&error, r));
659 r = manager_abandon_scope(s->manager, s->scope, &error);
661 log_error("Failed to abandon session scope: %s", bus_error_message(&error, r));
670 static int session_stop_cgroup(Session *s, bool force) {
671 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
676 if (force || manager_shall_kill(s->manager, s->user->name)) {
677 r = session_kill(s, KILL_ALL, SIGTERM);
685 int session_stop(Session *s, bool force) {
693 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
696 seat_evict_position(s->seat, s);
698 /* We are going down, don't care about FIFOs anymore */
699 session_remove_fifo(s);
702 /// elogind does not start scopes, but sessions
704 r = session_stop_scope(s, force);
706 r = session_stop_cgroup(s, force);
711 user_elect_display(s->user);
719 int session_finalize(Session *s) {
728 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
729 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_STOP),
730 "SESSION_ID=%s", s->id,
731 "USER_ID=%s", s->user->name,
732 "LEADER="PID_FMT, s->leader,
733 LOG_MESSAGE("Removed session %s.", s->id),
736 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
739 seat_evict_position(s->seat, s);
741 /* Kill session devices */
742 while ((sd = hashmap_first(s->devices)))
743 session_device_free(sd);
745 (void) unlink(s->state_file);
746 session_add_to_gc_queue(s);
747 user_add_to_gc_queue(s->user);
750 session_send_signal(s, false);
755 if (s->seat->active == s)
756 seat_set_active(s->seat, NULL);
759 seat_send_changed(s->seat, "Sessions", NULL);
763 user_send_changed(s->user, "Sessions", "Display", NULL);
768 /// UNNEEDED by elogind
770 static int release_timeout_callback(sd_event_source *es, uint64_t usec, void *userdata) {
771 Session *s = userdata;
776 session_stop(s, false);
781 int session_release(Session *s) {
784 if (!s->started || s->stopping)
787 if (s->timer_event_source)
790 /* In systemd, session release is triggered by user jobs
791 dying. In elogind we don't have that so go ahead and stop
794 return sd_event_add_time(s->manager->event,
795 &s->timer_event_source,
797 now(CLOCK_MONOTONIC) + RELEASE_USEC, 0,
798 release_timeout_callback, s);
801 return session_stop(s, false);
805 bool session_is_active(Session *s) {
811 return s->seat->active == s;
814 static int get_tty_atime(const char *tty, usec_t *atime) {
815 _cleanup_free_ char *p = NULL;
821 if (!path_is_absolute(tty)) {
822 p = strappend("/dev/", tty);
827 } else if (!path_startswith(tty, "/dev/"))
830 if (lstat(tty, &st) < 0)
833 *atime = timespec_load(&st.st_atim);
837 static int get_process_ctty_atime(pid_t pid, usec_t *atime) {
838 _cleanup_free_ char *p = NULL;
844 r = get_ctty(pid, NULL, &p);
848 return get_tty_atime(p, atime);
851 int session_get_idle_hint(Session *s, dual_timestamp *t) {
857 /* Explicit idle hint is set */
860 *t = s->idle_hint_timestamp;
865 /* Graphical sessions should really implement a real
870 /* For sessions with an explicitly configured tty, let's check
873 r = get_tty_atime(s->tty, &atime);
878 /* For sessions with a leader but no explicitly configured
879 * tty, let's check the controlling tty of the leader */
881 r = get_process_ctty_atime(s->leader, &atime);
888 *t = s->idle_hint_timestamp;
894 dual_timestamp_from_realtime(t, atime);
896 n = now(CLOCK_REALTIME);
898 if (s->manager->idle_action_usec <= 0)
901 return atime + s->manager->idle_action_usec <= n;
904 void session_set_idle_hint(Session *s, bool b) {
907 if (s->idle_hint == b)
911 dual_timestamp_get(&s->idle_hint_timestamp);
913 session_send_changed(s, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
916 seat_send_changed(s->seat, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
918 user_send_changed(s->user, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
919 manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
922 static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
923 Session *s = userdata;
926 assert(s->fifo_fd == fd);
928 /* EOF on the FIFO means the session died abnormally. */
930 session_remove_fifo(s);
931 session_stop(s, false);
936 int session_create_fifo(Session *s) {
943 r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
947 if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0)
950 if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST)
954 /* Open reading side */
955 if (s->fifo_fd < 0) {
956 s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
962 if (!s->fifo_event_source) {
963 r = sd_event_add_io(s->manager->event, &s->fifo_event_source, s->fifo_fd, 0, session_dispatch_fifo, s);
967 r = sd_event_source_set_priority(s->fifo_event_source, SD_EVENT_PRIORITY_IDLE);
972 /* Open writing side */
973 r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
980 static void session_remove_fifo(Session *s) {
983 s->fifo_event_source = sd_event_source_unref(s->fifo_event_source);
984 s->fifo_fd = safe_close(s->fifo_fd);
987 unlink(s->fifo_path);
988 s->fifo_path = mfree(s->fifo_path);
992 bool session_check_gc(Session *s, bool drop_not_started) {
995 if (drop_not_started && !s->started)
1001 if (s->fifo_fd >= 0) {
1002 if (pipe_eof(s->fifo_fd) <= 0)
1006 /// elogind supports neither scopes nor jobs
1008 if (s->scope_job && manager_job_is_active(s->manager, s->scope_job))
1011 if (s->scope && manager_unit_is_active(s->manager, s->scope))
1015 if ( s->user->manager
1016 && (cg_is_empty_recursive (SYSTEMD_CGROUP_CONTROLLER, s->user->manager->cgroup_root) > 0) )
1022 void session_add_to_gc_queue(Session *s) {
1028 LIST_PREPEND(gc_queue, s->manager->session_gc_queue, s);
1029 s->in_gc_queue = true;
1032 SessionState session_get_state(Session *s) {
1035 /* always check closing first */
1036 if (s->stopping || s->timer_event_source)
1037 return SESSION_CLOSING;
1039 /// elogind does not support systemd scope_jobs
1041 if (s->scope_job || s->fifo_fd < 0)
1045 return SESSION_OPENING;
1047 if (session_is_active(s))
1048 return SESSION_ACTIVE;
1050 return SESSION_ONLINE;
1053 int session_kill(Session *s, KillWho who, int signo) {
1056 /// Without direct cgroup support, elogind can not kill sessions
1061 return manager_kill_unit(s->manager, s->scope, who, signo, NULL);
1063 if (who == KILL_LEADER) {
1067 /* FIXME: verify that leader is in cgroup? */
1069 if (kill(s->leader, signo) < 0) {
1070 return log_error_errno(errno, "Failed to kill process leader %d for session %s: %m", s->leader, s->id);
1074 bool sigcont = false;
1075 bool ignore_self = true;
1077 return cg_kill_recursive (SYSTEMD_CGROUP_CONTROLLER, s->id, signo,
1078 sigcont, ignore_self, rem, NULL);
1083 static int session_open_vt(Session *s) {
1084 char path[sizeof("/dev/tty") + DECIMAL_STR_MAX(s->vtnr)];
1092 sprintf(path, "/dev/tty%u", s->vtnr);
1093 s->vtfd = open_terminal(path, O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY);
1095 return log_error_errno(errno, "cannot open VT %s of session %s: %m", path, s->id);
1100 int session_prepare_vt(Session *s) {
1102 struct vt_mode mode = { 0 };
1107 vt = session_open_vt(s);
1111 r = fchown(vt, s->user->uid, -1);
1113 r = log_error_errno(errno,
1114 "Cannot change owner of /dev/tty%u: %m",
1119 r = ioctl(vt, KDSKBMODE, K_OFF);
1121 r = log_error_errno(errno,
1122 "Cannot set K_OFF on /dev/tty%u: %m",
1127 r = ioctl(vt, KDSETMODE, KD_GRAPHICS);
1129 r = log_error_errno(errno,
1130 "Cannot set KD_GRAPHICS on /dev/tty%u: %m",
1135 /* Oh, thanks to the VT layer, VT_AUTO does not work with KD_GRAPHICS.
1136 * So we need a dummy handler here which just acknowledges *all* VT
1137 * switch requests. */
1138 mode.mode = VT_PROCESS;
1139 mode.relsig = SIGRTMIN;
1140 mode.acqsig = SIGRTMIN + 1;
1141 r = ioctl(vt, VT_SETMODE, &mode);
1143 r = log_error_errno(errno,
1144 "Cannot set VT_PROCESS on /dev/tty%u: %m",
1152 session_restore_vt(s);
1156 void session_restore_vt(Session *s) {
1157 _cleanup_free_ char *utf8 = NULL;
1158 int vt, kb = K_XLATE;
1159 struct vt_mode mode = { 0 };
1161 /* We need to get a fresh handle to the virtual terminal,
1162 * since the old file-descriptor is potentially in a hung-up
1163 * state after the controlling process exited; we do a
1164 * little dance to avoid having the terminal be available
1165 * for reuse before we've cleaned it up.
1167 int old_fd = s->vtfd;
1170 vt = session_open_vt(s);
1176 (void) ioctl(vt, KDSETMODE, KD_TEXT);
1178 if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && *utf8 == '1')
1181 (void) ioctl(vt, KDSKBMODE, kb);
1183 mode.mode = VT_AUTO;
1184 (void) ioctl(vt, VT_SETMODE, &mode);
1188 s->vtfd = safe_close(s->vtfd);
1191 void session_leave_vt(Session *s) {
1196 /* This is called whenever we get a VT-switch signal from the kernel.
1197 * We acknowledge all of them unconditionally. Note that session are
1198 * free to overwrite those handlers and we only register them for
1199 * sessions with controllers. Legacy sessions are not affected.
1200 * However, if we switch from a non-legacy to a legacy session, we must
1201 * make sure to pause all device before acknowledging the switch. We
1202 * process the real switch only after we are notified via sysfs, so the
1203 * legacy session might have already started using the devices. If we
1204 * don't pause the devices before the switch, we might confuse the
1205 * session we switch to. */
1210 session_device_pause_all(s);
1211 r = ioctl(s->vtfd, VT_RELDISP, 1);
1213 log_debug_errno(errno, "Cannot release VT of session %s: %m", s->id);
1216 bool session_is_controller(Session *s, const char *sender) {
1219 return streq_ptr(s->controller, sender);
1222 static void session_release_controller(Session *s, bool notify) {
1223 _cleanup_free_ char *name = NULL;
1229 name = s->controller;
1231 /* By resetting the controller before releasing the devices, we won't
1232 * send notification signals. This avoids sending useless notifications
1233 * if the controller is released on disconnects. */
1235 s->controller = NULL;
1237 while ((sd = hashmap_first(s->devices)))
1238 session_device_free(sd);
1240 s->controller = NULL;
1241 s->track = sd_bus_track_unref(s->track);
1244 static int on_bus_track(sd_bus_track *track, void *userdata) {
1245 Session *s = userdata;
1250 session_drop_controller(s);
1255 int session_set_controller(Session *s, const char *sender, bool force) {
1256 _cleanup_free_ char *name = NULL;
1262 if (session_is_controller(s, sender))
1264 if (s->controller && !force)
1267 name = strdup(sender);
1271 s->track = sd_bus_track_unref(s->track);
1272 r = sd_bus_track_new(s->manager->bus, &s->track, on_bus_track, s);
1276 r = sd_bus_track_add_name(s->track, name);
1280 /* When setting a session controller, we forcibly mute the VT and set
1281 * it into graphics-mode. Applications can override that by changing
1282 * VT state after calling TakeControl(). However, this serves as a good
1283 * default and well-behaving controllers can now ignore VTs entirely.
1284 * Note that we reset the VT on ReleaseControl() and if the controller
1286 * If logind crashes/restarts, we restore the controller during restart
1287 * or reset the VT in case it crashed/exited, too. */
1288 r = session_prepare_vt(s);
1290 s->track = sd_bus_track_unref(s->track);
1294 session_release_controller(s, true);
1295 s->controller = name;
1302 void session_drop_controller(Session *s) {
1308 s->track = sd_bus_track_unref(s->track);
1309 session_release_controller(s, false);
1311 session_restore_vt(s);
1314 static const char* const session_state_table[_SESSION_STATE_MAX] = {
1315 [SESSION_OPENING] = "opening",
1316 [SESSION_ONLINE] = "online",
1317 [SESSION_ACTIVE] = "active",
1318 [SESSION_CLOSING] = "closing"
1321 DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState);
1323 static const char* const session_type_table[_SESSION_TYPE_MAX] = {
1324 [SESSION_UNSPECIFIED] = "unspecified",
1325 [SESSION_TTY] = "tty",
1326 [SESSION_X11] = "x11",
1327 [SESSION_WAYLAND] = "wayland",
1328 [SESSION_MIR] = "mir",
1329 [SESSION_WEB] = "web",
1332 DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType);
1334 static const char* const session_class_table[_SESSION_CLASS_MAX] = {
1335 [SESSION_USER] = "user",
1336 [SESSION_GREETER] = "greeter",
1337 [SESSION_LOCK_SCREEN] = "lock-screen",
1338 [SESSION_BACKGROUND] = "background"
1341 DEFINE_STRING_TABLE_LOOKUP(session_class, SessionClass);
1343 static const char* const kill_who_table[_KILL_WHO_MAX] = {
1344 [KILL_LEADER] = "leader",
1348 DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho);