2 This file is part of systemd.
4 Copyright 2011 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/ioctl.h>
29 #include "sd-messages.h"
31 #include "alloc-util.h"
32 #include "audit-util.h"
33 #include "bus-error.h"
38 #include "formats-util.h"
40 #include "logind-session.h"
42 #include "parse-util.h"
43 #include "path-util.h"
44 #include "string-table.h"
45 #include "terminal-util.h"
46 #include "user-util.h"
49 // #define RELEASE_USEC (20*USEC_PER_SEC)
51 static void session_remove_fifo(Session *s);
53 Session* session_new(Manager *m, const char *id) {
58 assert(session_id_valid(id));
64 s->state_file = strappend("/run/systemd/sessions/", id);
70 s->devices = hashmap_new(&devt_hash_ops);
77 s->id = basename(s->state_file);
79 if (hashmap_put(m->sessions, s->id, s) < 0) {
80 hashmap_free(s->devices);
93 void session_free(Session *s) {
99 LIST_REMOVE(gc_queue, s->manager->session_gc_queue, s);
101 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
103 session_remove_fifo(s);
105 session_drop_controller(s);
107 while ((sd = hashmap_first(s->devices)))
108 session_device_free(sd);
110 hashmap_free(s->devices);
113 LIST_REMOVE(sessions_by_user, s->user->sessions, s);
115 if (s->user->display == s)
116 s->user->display = NULL;
120 if (s->seat->active == s)
121 s->seat->active = NULL;
122 if (s->seat->pending_switch == s)
123 s->seat->pending_switch = NULL;
125 seat_evict_position(s->seat, s);
126 LIST_REMOVE(sessions_by_seat, s->seat->sessions, s);
130 hashmap_remove(s->manager->session_units, s->scope);
134 #if 0 /// elogind does not support systemd scope_jobs
138 sd_bus_message_unref(s->create_message);
142 free(s->remote_host);
143 free(s->remote_user);
147 hashmap_remove(s->manager->sessions, s->id);
153 void session_set_user(Session *s, User *u) {
158 LIST_PREPEND(sessions_by_user, u->sessions, s);
161 int session_save(Session *s) {
162 _cleanup_free_ char *temp_path = NULL;
163 _cleanup_fclose_ FILE *f = NULL;
174 r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
178 r = fopen_temporary(s->state_file, &f, &temp_path);
184 fchmod(fileno(f), 0644);
187 "# This is private data. Do not parse.\n"
195 session_is_active(s),
196 session_state_to_string(session_get_state(s)),
200 fprintf(f, "TYPE=%s\n", session_type_to_string(s->type));
203 fprintf(f, "CLASS=%s\n", session_class_to_string(s->class));
206 fprintf(f, "SCOPE=%s\n", s->scope);
207 #if 0 /// elogind does not support systemd scope_jobs
209 fprintf(f, "SCOPE_JOB=%s\n", s->scope_job);
213 fprintf(f, "FIFO=%s\n", s->fifo_path);
216 fprintf(f, "SEAT=%s\n", s->seat->id);
219 fprintf(f, "TTY=%s\n", s->tty);
222 fprintf(f, "DISPLAY=%s\n", s->display);
224 if (s->remote_host) {
225 _cleanup_free_ char *escaped;
227 escaped = cescape(s->remote_host);
233 fprintf(f, "REMOTE_HOST=%s\n", escaped);
236 if (s->remote_user) {
237 _cleanup_free_ char *escaped;
239 escaped = cescape(s->remote_user);
245 fprintf(f, "REMOTE_USER=%s\n", escaped);
249 _cleanup_free_ char *escaped;
251 escaped = cescape(s->service);
257 fprintf(f, "SERVICE=%s\n", escaped);
261 _cleanup_free_ char *escaped;
264 escaped = cescape(s->desktop);
270 fprintf(f, "DESKTOP=%s\n", escaped);
273 if (s->seat && seat_has_vts(s->seat))
274 fprintf(f, "VTNR=%u\n", s->vtnr);
277 fprintf(f, "POSITION=%u\n", s->position);
280 fprintf(f, "LEADER="PID_FMT"\n", s->leader);
283 fprintf(f, "AUDIT=%"PRIu32"\n", s->audit_id);
285 if (dual_timestamp_is_set(&s->timestamp))
287 "REALTIME="USEC_FMT"\n"
288 "MONOTONIC="USEC_FMT"\n",
289 s->timestamp.realtime,
290 s->timestamp.monotonic);
293 fprintf(f, "CONTROLLER=%s\n", s->controller);
295 r = fflush_and_check(f);
299 if (rename(temp_path, s->state_file) < 0) {
307 (void) unlink(s->state_file);
310 (void) unlink(temp_path);
312 return log_error_errno(r, "Failed to save session data %s: %m", s->state_file);
316 int session_load(Session *s) {
317 _cleanup_free_ char *remote = NULL,
334 r = parse_env_file(s->state_file, NEWLINE,
337 #if 0 /// elogind does not support systemd scope_jobs
338 "SCOPE_JOB", &s->scope_job,
340 "FIFO", &s->fifo_path,
343 "DISPLAY", &s->display,
344 "REMOTE_HOST", &s->remote_host,
345 "REMOTE_USER", &s->remote_user,
346 "SERVICE", &s->service,
347 "DESKTOP", &s->desktop,
350 "POSITION", &position,
355 "REALTIME", &realtime,
356 "MONOTONIC", &monotonic,
357 "CONTROLLER", &controller,
361 return log_error_errno(r, "Failed to read %s: %m", s->state_file);
368 log_error("UID not specified for session %s", s->id);
372 r = parse_uid(uid, &u);
374 log_error("Failed to parse UID value %s for session %s.", uid, s->id);
378 user = hashmap_get(s->manager->users, UID_TO_PTR(u));
380 log_error("User of session %s not known.", s->id);
384 session_set_user(s, user);
388 k = parse_boolean(remote);
394 safe_atou(vtnr, &s->vtnr);
396 if (seat && !s->seat) {
399 o = hashmap_get(s->manager->seats, seat);
401 r = seat_attach_session(o, s);
403 log_error("Cannot attach session %s to seat %s", s->id, seat);
406 if (!s->seat || !seat_has_vts(s->seat))
409 if (position && s->seat) {
412 safe_atou(position, &npos);
413 seat_claim_position(s->seat, s, npos);
417 k = parse_pid(leader, &s->leader);
419 audit_session_from_pid(s->leader, &s->audit_id);
425 t = session_type_from_string(type);
433 c = session_class_from_string(class);
438 if (state && streq(state, "closing"))
444 /* If we open an unopened pipe for reading we will not
445 get an EOF. to trigger an EOF we hence open it for
446 writing, but close it right away which then will
447 trigger the EOF. This will happen immediately if no
448 other process has the FIFO open for writing, i. e.
449 when the session died before logind (re)started. */
451 fd = session_create_fifo(s);
456 unsigned long long l;
457 if (sscanf(realtime, "%llu", &l) > 0)
458 s->timestamp.realtime = l;
462 unsigned long long l;
463 if (sscanf(monotonic, "%llu", &l) > 0)
464 s->timestamp.monotonic = l;
468 if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0)
469 session_set_controller(s, controller, false);
471 session_restore_vt(s);
477 int session_activate(Session *s) {
478 unsigned int num_pending;
486 if (s->seat->active == s)
489 /* on seats with VTs, we let VTs manage session-switching */
490 if (seat_has_vts(s->seat)) {
494 return chvt(s->vtnr);
497 /* On seats without VTs, we implement session-switching in logind. We
498 * try to pause all session-devices and wait until the session
499 * controller acknowledged them. Once all devices are asleep, we simply
500 * switch the active session and be done.
501 * We save the session we want to switch to in seat->pending_switch and
502 * seat_complete_switch() will perform the final switch. */
504 s->seat->pending_switch = s;
506 /* if no devices are running, immediately perform the session switch */
507 num_pending = session_device_try_pause_all(s);
509 seat_complete_switch(s->seat);
514 #if 0 /// UNNEEDED by elogind
515 static int session_start_scope(Session *s) {
522 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
523 char *scope, *job = NULL;
524 const char *description;
526 scope = strjoin("session-", s->id, ".scope", NULL);
530 description = strjoina("Session ", s->id, " of user ", s->user->name, NULL);
532 r = manager_start_scope(
538 "systemd-logind.service",
539 "systemd-user-sessions.service",
540 (uint64_t) -1, /* disable TasksMax= for the scope, rely on the slice setting for it */
544 log_error_errno(r, "Failed to start session scope %s: %s", scope, bus_error_message(&error, r));
556 (void) hashmap_put(s->manager->session_units, s->scope, s);
562 static int session_start_cgroup(Session *s) {
567 assert(s->leader > 0);
569 /* First, create our own group */
570 r = cg_create(SYSTEMD_CGROUP_CONTROLLER, s->id);
572 return log_error_errno(r, "Failed to create cgroup %s: %m", s->id);
574 r = cg_attach(SYSTEMD_CGROUP_CONTROLLER, s->id, s->leader);
576 log_warning_errno(r, "Failed to attach PID %d to cgroup %s: %m", s->leader, s->id);
582 int session_start(Session *s) {
593 r = user_start(s->user);
598 /// elogind does its own session management without systemd units,
599 /// slices and scopes
601 r = session_start_scope(s);
603 r = session_start_cgroup(s);
608 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
609 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_START),
610 "SESSION_ID=%s", s->id,
611 "USER_ID=%s", s->user->name,
612 "LEADER="PID_FMT, s->leader,
613 LOG_MESSAGE("New session %s of user %s.", s->id, s->user->name),
616 if (!dual_timestamp_is_set(&s->timestamp))
617 dual_timestamp_get(&s->timestamp);
620 seat_read_active_vt(s->seat);
624 user_elect_display(s->user);
633 session_send_signal(s, true);
634 user_send_changed(s->user, "Sessions", "Display", NULL);
636 if (s->seat->active == s)
637 seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL);
639 seat_send_changed(s->seat, "Sessions", NULL);
645 #if 0 /// UNNEEDED by elogind
646 static int session_stop_scope(Session *s, bool force) {
647 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
656 if (force || manager_shall_kill(s->manager, s->user->name)) {
657 r = manager_stop_unit(s->manager, s->scope, &error, &job);
659 log_error("Failed to stop session scope: %s", bus_error_message(&error, r));
666 r = manager_abandon_scope(s->manager, s->scope, &error);
668 log_error("Failed to abandon session scope: %s", bus_error_message(&error, r));
677 static int session_stop_cgroup(Session *s, bool force) {
678 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
683 if (force || manager_shall_kill(s->manager, s->user->name)) {
684 r = session_kill(s, KILL_ALL, SIGTERM);
692 int session_stop(Session *s, bool force) {
700 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
703 seat_evict_position(s->seat, s);
705 /* We are going down, don't care about FIFOs anymore */
706 session_remove_fifo(s);
709 #if 0 /// elogind does not start scopes, but sessions
710 r = session_stop_scope(s, force);
712 r = session_stop_cgroup(s, force);
717 user_elect_display(s->user);
725 int session_finalize(Session *s) {
734 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
735 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_STOP),
736 "SESSION_ID=%s", s->id,
737 "USER_ID=%s", s->user->name,
738 "LEADER="PID_FMT, s->leader,
739 LOG_MESSAGE("Removed session %s.", s->id),
742 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
745 seat_evict_position(s->seat, s);
747 /* Kill session devices */
748 while ((sd = hashmap_first(s->devices)))
749 session_device_free(sd);
751 (void) unlink(s->state_file);
752 session_add_to_gc_queue(s);
753 user_add_to_gc_queue(s->user);
756 session_send_signal(s, false);
761 if (s->seat->active == s)
762 seat_set_active(s->seat, NULL);
765 seat_send_changed(s->seat, "Sessions", NULL);
769 user_send_changed(s->user, "Sessions", "Display", NULL);
774 #if 0 /// UNNEEDED by elogind
775 static int release_timeout_callback(sd_event_source *es, uint64_t usec, void *userdata) {
776 Session *s = userdata;
781 session_stop(s, false);
786 int session_release(Session *s) {
789 if (!s->started || s->stopping)
792 if (s->timer_event_source)
795 /* In systemd, session release is triggered by user jobs
796 dying. In elogind we don't have that so go ahead and stop
799 return sd_event_add_time(s->manager->event,
800 &s->timer_event_source,
802 now(CLOCK_MONOTONIC) + RELEASE_USEC, 0,
803 release_timeout_callback, s);
806 return session_stop(s, false);
810 bool session_is_active(Session *s) {
816 return s->seat->active == s;
819 static int get_tty_atime(const char *tty, usec_t *atime) {
820 _cleanup_free_ char *p = NULL;
826 if (!path_is_absolute(tty)) {
827 p = strappend("/dev/", tty);
832 } else if (!path_startswith(tty, "/dev/"))
835 if (lstat(tty, &st) < 0)
838 *atime = timespec_load(&st.st_atim);
842 static int get_process_ctty_atime(pid_t pid, usec_t *atime) {
843 _cleanup_free_ char *p = NULL;
849 r = get_ctty(pid, NULL, &p);
853 return get_tty_atime(p, atime);
856 int session_get_idle_hint(Session *s, dual_timestamp *t) {
862 /* Explicit idle hint is set */
865 *t = s->idle_hint_timestamp;
870 /* Graphical sessions should really implement a real
875 /* For sessions with an explicitly configured tty, let's check
878 r = get_tty_atime(s->tty, &atime);
883 /* For sessions with a leader but no explicitly configured
884 * tty, let's check the controlling tty of the leader */
886 r = get_process_ctty_atime(s->leader, &atime);
893 *t = s->idle_hint_timestamp;
899 dual_timestamp_from_realtime(t, atime);
901 n = now(CLOCK_REALTIME);
903 if (s->manager->idle_action_usec <= 0)
906 return atime + s->manager->idle_action_usec <= n;
909 void session_set_idle_hint(Session *s, bool b) {
912 if (s->idle_hint == b)
916 dual_timestamp_get(&s->idle_hint_timestamp);
918 session_send_changed(s, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
921 seat_send_changed(s->seat, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
923 user_send_changed(s->user, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
924 manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
927 static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
928 Session *s = userdata;
931 assert(s->fifo_fd == fd);
933 /* EOF on the FIFO means the session died abnormally. */
935 session_remove_fifo(s);
936 session_stop(s, false);
941 int session_create_fifo(Session *s) {
948 r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
952 if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0)
955 if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST)
959 /* Open reading side */
960 if (s->fifo_fd < 0) {
961 s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
967 if (!s->fifo_event_source) {
968 r = sd_event_add_io(s->manager->event, &s->fifo_event_source, s->fifo_fd, 0, session_dispatch_fifo, s);
972 r = sd_event_source_set_priority(s->fifo_event_source, SD_EVENT_PRIORITY_IDLE);
977 /* Open writing side */
978 r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
985 static void session_remove_fifo(Session *s) {
988 s->fifo_event_source = sd_event_source_unref(s->fifo_event_source);
989 s->fifo_fd = safe_close(s->fifo_fd);
992 unlink(s->fifo_path);
993 s->fifo_path = mfree(s->fifo_path);
997 bool session_check_gc(Session *s, bool drop_not_started) {
1000 if (drop_not_started && !s->started)
1006 if (s->fifo_fd >= 0) {
1007 if (pipe_eof(s->fifo_fd) <= 0)
1011 #if 0 /// elogind supports neither scopes nor jobs
1012 if (s->scope_job && manager_job_is_active(s->manager, s->scope_job))
1015 if (s->scope && manager_unit_is_active(s->manager, s->scope))
1019 if ( s->user->manager
1020 && (cg_is_empty_recursive (SYSTEMD_CGROUP_CONTROLLER, s->user->manager->cgroup_root) > 0) )
1026 void session_add_to_gc_queue(Session *s) {
1032 LIST_PREPEND(gc_queue, s->manager->session_gc_queue, s);
1033 s->in_gc_queue = true;
1036 SessionState session_get_state(Session *s) {
1039 /* always check closing first */
1040 if (s->stopping || s->timer_event_source)
1041 return SESSION_CLOSING;
1043 #if 0 /// elogind does not support systemd scope_jobs
1044 if (s->scope_job || s->fifo_fd < 0)
1048 return SESSION_OPENING;
1050 if (session_is_active(s))
1051 return SESSION_ACTIVE;
1053 return SESSION_ONLINE;
1056 int session_kill(Session *s, KillWho who, int signo) {
1059 #if 0 /// Without direct cgroup support, elogind can not kill sessions
1063 return manager_kill_unit(s->manager, s->scope, who, signo, NULL);
1065 if (who == KILL_LEADER) {
1069 /* FIXME: verify that leader is in cgroup? */
1071 if (kill(s->leader, signo) < 0) {
1072 return log_error_errno(errno, "Failed to kill process leader %d for session %s: %m", s->leader, s->id);
1076 bool sigcont = false;
1077 bool ignore_self = true;
1079 return cg_kill_recursive (SYSTEMD_CGROUP_CONTROLLER, s->id, signo,
1080 sigcont, ignore_self, rem, NULL);
1085 static int session_open_vt(Session *s) {
1086 char path[sizeof("/dev/tty") + DECIMAL_STR_MAX(s->vtnr)];
1094 sprintf(path, "/dev/tty%u", s->vtnr);
1095 s->vtfd = open_terminal(path, O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY);
1097 return log_error_errno(s->vtfd, "cannot open VT %s of session %s: %m", path, s->id);
1102 int session_prepare_vt(Session *s) {
1104 struct vt_mode mode = { 0 };
1109 vt = session_open_vt(s);
1113 r = fchown(vt, s->user->uid, -1);
1115 r = log_error_errno(errno,
1116 "Cannot change owner of /dev/tty%u: %m",
1121 r = ioctl(vt, KDSKBMODE, K_OFF);
1123 r = log_error_errno(errno,
1124 "Cannot set K_OFF on /dev/tty%u: %m",
1129 r = ioctl(vt, KDSETMODE, KD_GRAPHICS);
1131 r = log_error_errno(errno,
1132 "Cannot set KD_GRAPHICS on /dev/tty%u: %m",
1137 /* Oh, thanks to the VT layer, VT_AUTO does not work with KD_GRAPHICS.
1138 * So we need a dummy handler here which just acknowledges *all* VT
1139 * switch requests. */
1140 mode.mode = VT_PROCESS;
1141 mode.relsig = SIGRTMIN;
1142 mode.acqsig = SIGRTMIN + 1;
1143 r = ioctl(vt, VT_SETMODE, &mode);
1145 r = log_error_errno(errno,
1146 "Cannot set VT_PROCESS on /dev/tty%u: %m",
1154 session_restore_vt(s);
1158 void session_restore_vt(Session *s) {
1160 static const struct vt_mode mode = {
1164 _cleanup_free_ char *utf8 = NULL;
1167 /* We need to get a fresh handle to the virtual terminal,
1168 * since the old file-descriptor is potentially in a hung-up
1169 * state after the controlling process exited; we do a
1170 * little dance to avoid having the terminal be available
1171 * for reuse before we've cleaned it up.
1176 vt = session_open_vt(s);
1182 (void) ioctl(vt, KDSETMODE, KD_TEXT);
1184 if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && *utf8 == '1')
1189 (void) ioctl(vt, KDSKBMODE, kb);
1191 (void) ioctl(vt, VT_SETMODE, &mode);
1192 (void) fchown(vt, 0, (gid_t) -1);
1194 s->vtfd = safe_close(s->vtfd);
1197 void session_leave_vt(Session *s) {
1202 /* This is called whenever we get a VT-switch signal from the kernel.
1203 * We acknowledge all of them unconditionally. Note that session are
1204 * free to overwrite those handlers and we only register them for
1205 * sessions with controllers. Legacy sessions are not affected.
1206 * However, if we switch from a non-legacy to a legacy session, we must
1207 * make sure to pause all device before acknowledging the switch. We
1208 * process the real switch only after we are notified via sysfs, so the
1209 * legacy session might have already started using the devices. If we
1210 * don't pause the devices before the switch, we might confuse the
1211 * session we switch to. */
1216 session_device_pause_all(s);
1217 r = ioctl(s->vtfd, VT_RELDISP, 1);
1219 log_debug_errno(errno, "Cannot release VT of session %s: %m", s->id);
1222 bool session_is_controller(Session *s, const char *sender) {
1225 return streq_ptr(s->controller, sender);
1228 static void session_release_controller(Session *s, bool notify) {
1229 _cleanup_free_ char *name = NULL;
1235 name = s->controller;
1237 /* By resetting the controller before releasing the devices, we won't
1238 * send notification signals. This avoids sending useless notifications
1239 * if the controller is released on disconnects. */
1241 s->controller = NULL;
1243 while ((sd = hashmap_first(s->devices)))
1244 session_device_free(sd);
1246 s->controller = NULL;
1247 s->track = sd_bus_track_unref(s->track);
1250 static int on_bus_track(sd_bus_track *track, void *userdata) {
1251 Session *s = userdata;
1256 session_drop_controller(s);
1261 int session_set_controller(Session *s, const char *sender, bool force) {
1262 _cleanup_free_ char *name = NULL;
1268 if (session_is_controller(s, sender))
1270 if (s->controller && !force)
1273 name = strdup(sender);
1277 s->track = sd_bus_track_unref(s->track);
1278 r = sd_bus_track_new(s->manager->bus, &s->track, on_bus_track, s);
1282 r = sd_bus_track_add_name(s->track, name);
1286 /* When setting a session controller, we forcibly mute the VT and set
1287 * it into graphics-mode. Applications can override that by changing
1288 * VT state after calling TakeControl(). However, this serves as a good
1289 * default and well-behaving controllers can now ignore VTs entirely.
1290 * Note that we reset the VT on ReleaseControl() and if the controller
1292 * If logind crashes/restarts, we restore the controller during restart
1293 * or reset the VT in case it crashed/exited, too. */
1294 r = session_prepare_vt(s);
1296 s->track = sd_bus_track_unref(s->track);
1300 session_release_controller(s, true);
1301 s->controller = name;
1308 void session_drop_controller(Session *s) {
1314 s->track = sd_bus_track_unref(s->track);
1315 session_release_controller(s, false);
1317 session_restore_vt(s);
1320 static const char* const session_state_table[_SESSION_STATE_MAX] = {
1321 [SESSION_OPENING] = "opening",
1322 [SESSION_ONLINE] = "online",
1323 [SESSION_ACTIVE] = "active",
1324 [SESSION_CLOSING] = "closing"
1327 DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState);
1329 static const char* const session_type_table[_SESSION_TYPE_MAX] = {
1330 [SESSION_UNSPECIFIED] = "unspecified",
1331 [SESSION_TTY] = "tty",
1332 [SESSION_X11] = "x11",
1333 [SESSION_WAYLAND] = "wayland",
1334 [SESSION_MIR] = "mir",
1335 [SESSION_WEB] = "web",
1338 DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType);
1340 static const char* const session_class_table[_SESSION_CLASS_MAX] = {
1341 [SESSION_USER] = "user",
1342 [SESSION_GREETER] = "greeter",
1343 [SESSION_LOCK_SCREEN] = "lock-screen",
1344 [SESSION_BACKGROUND] = "background"
1347 DEFINE_STRING_TABLE_LOOKUP(session_class, SessionClass);
1349 static const char* const kill_who_table[_KILL_WHO_MAX] = {
1350 [KILL_LEADER] = "leader",
1354 DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho);