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, "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);
547 hashmap_put(s->manager->session_units, s->scope, s);
553 static int session_start_cgroup(Session *s) {
558 assert(s->leader > 0);
560 /* First, create our own group */
561 r = cg_create(SYSTEMD_CGROUP_CONTROLLER, s->id);
563 return log_error_errno(r, "Failed to create cgroup %s: %m", s->id);
565 r = cg_attach(SYSTEMD_CGROUP_CONTROLLER, s->id, s->leader);
567 log_warning_errno(r, "Failed to attach PID %d to cgroup %s: %m", s->leader, s->id);
573 int session_start(Session *s) {
584 r = user_start(s->user);
589 /// elogind does its own session management without systemd units,
590 /// slices and scopes
592 r = session_start_scope(s);
594 r = session_start_cgroup(s);
599 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
600 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_START),
601 "SESSION_ID=%s", s->id,
602 "USER_ID=%s", s->user->name,
603 "LEADER="PID_FMT, s->leader,
604 LOG_MESSAGE("New session %s of user %s.", s->id, s->user->name),
607 if (!dual_timestamp_is_set(&s->timestamp))
608 dual_timestamp_get(&s->timestamp);
611 seat_read_active_vt(s->seat);
615 user_elect_display(s->user);
624 session_send_signal(s, true);
625 user_send_changed(s->user, "Sessions", "Display", NULL);
627 if (s->seat->active == s)
628 seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL);
630 seat_send_changed(s->seat, "Sessions", NULL);
636 /// UNNEEDED by elogind
638 static int session_stop_scope(Session *s, bool force) {
639 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
648 if (force || manager_shall_kill(s->manager, s->user->name)) {
649 r = manager_stop_unit(s->manager, s->scope, &error, &job);
651 log_error("Failed to stop session scope: %s", bus_error_message(&error, r));
658 r = manager_abandon_scope(s->manager, s->scope, &error);
660 log_error("Failed to abandon session scope: %s", bus_error_message(&error, r));
669 static int session_stop_cgroup(Session *s, bool force) {
670 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
675 if (force || manager_shall_kill(s->manager, s->user->name)) {
676 r = session_kill(s, KILL_ALL, SIGTERM);
684 int session_stop(Session *s, bool force) {
692 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
695 seat_evict_position(s->seat, s);
697 /* We are going down, don't care about FIFOs anymore */
698 session_remove_fifo(s);
701 /// elogind does not start scopes, but sessions
703 r = session_stop_scope(s, force);
705 r = session_stop_cgroup(s, force);
710 user_elect_display(s->user);
718 int session_finalize(Session *s) {
727 log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
728 LOG_MESSAGE_ID(SD_MESSAGE_SESSION_STOP),
729 "SESSION_ID=%s", s->id,
730 "USER_ID=%s", s->user->name,
731 "LEADER="PID_FMT, s->leader,
732 LOG_MESSAGE("Removed session %s.", s->id),
735 s->timer_event_source = sd_event_source_unref(s->timer_event_source);
738 seat_evict_position(s->seat, s);
740 /* Kill session devices */
741 while ((sd = hashmap_first(s->devices)))
742 session_device_free(sd);
744 (void) unlink(s->state_file);
745 session_add_to_gc_queue(s);
746 user_add_to_gc_queue(s->user);
749 session_send_signal(s, false);
754 if (s->seat->active == s)
755 seat_set_active(s->seat, NULL);
758 seat_send_changed(s->seat, "Sessions", NULL);
762 user_send_changed(s->user, "Sessions", "Display", NULL);
767 /// UNNEEDED by elogind
769 static int release_timeout_callback(sd_event_source *es, uint64_t usec, void *userdata) {
770 Session *s = userdata;
775 session_stop(s, false);
780 int session_release(Session *s) {
783 if (!s->started || s->stopping)
786 if (s->timer_event_source)
789 /* In systemd, session release is triggered by user jobs
790 dying. In elogind we don't have that so go ahead and stop
793 return sd_event_add_time(s->manager->event,
794 &s->timer_event_source,
796 now(CLOCK_MONOTONIC) + RELEASE_USEC, 0,
797 release_timeout_callback, s);
800 return session_stop(s, false);
804 bool session_is_active(Session *s) {
810 return s->seat->active == s;
813 static int get_tty_atime(const char *tty, usec_t *atime) {
814 _cleanup_free_ char *p = NULL;
820 if (!path_is_absolute(tty)) {
821 p = strappend("/dev/", tty);
826 } else if (!path_startswith(tty, "/dev/"))
829 if (lstat(tty, &st) < 0)
832 *atime = timespec_load(&st.st_atim);
836 static int get_process_ctty_atime(pid_t pid, usec_t *atime) {
837 _cleanup_free_ char *p = NULL;
843 r = get_ctty(pid, NULL, &p);
847 return get_tty_atime(p, atime);
850 int session_get_idle_hint(Session *s, dual_timestamp *t) {
856 /* Explicit idle hint is set */
859 *t = s->idle_hint_timestamp;
864 /* Graphical sessions should really implement a real
869 /* For sessions with an explicitly configured tty, let's check
872 r = get_tty_atime(s->tty, &atime);
877 /* For sessions with a leader but no explicitly configured
878 * tty, let's check the controlling tty of the leader */
880 r = get_process_ctty_atime(s->leader, &atime);
887 *t = s->idle_hint_timestamp;
893 dual_timestamp_from_realtime(t, atime);
895 n = now(CLOCK_REALTIME);
897 if (s->manager->idle_action_usec <= 0)
900 return atime + s->manager->idle_action_usec <= n;
903 void session_set_idle_hint(Session *s, bool b) {
906 if (s->idle_hint == b)
910 dual_timestamp_get(&s->idle_hint_timestamp);
912 session_send_changed(s, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
915 seat_send_changed(s->seat, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
917 user_send_changed(s->user, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
918 manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
921 static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
922 Session *s = userdata;
925 assert(s->fifo_fd == fd);
927 /* EOF on the FIFO means the session died abnormally. */
929 session_remove_fifo(s);
930 session_stop(s, false);
935 int session_create_fifo(Session *s) {
942 r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0);
946 if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0)
949 if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST)
953 /* Open reading side */
954 if (s->fifo_fd < 0) {
955 s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
961 if (!s->fifo_event_source) {
962 r = sd_event_add_io(s->manager->event, &s->fifo_event_source, s->fifo_fd, 0, session_dispatch_fifo, s);
966 r = sd_event_source_set_priority(s->fifo_event_source, SD_EVENT_PRIORITY_IDLE);
971 /* Open writing side */
972 r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
979 static void session_remove_fifo(Session *s) {
982 s->fifo_event_source = sd_event_source_unref(s->fifo_event_source);
983 s->fifo_fd = safe_close(s->fifo_fd);
986 unlink(s->fifo_path);
987 s->fifo_path = mfree(s->fifo_path);
991 bool session_check_gc(Session *s, bool drop_not_started) {
994 if (drop_not_started && !s->started)
1000 if (s->fifo_fd >= 0) {
1001 if (pipe_eof(s->fifo_fd) <= 0)
1005 /// elogind supports neither scopes nor jobs
1007 if (s->scope_job && manager_job_is_active(s->manager, s->scope_job))
1010 if (s->scope && manager_unit_is_active(s->manager, s->scope))
1014 if ( s->user->manager
1015 && (cg_is_empty_recursive (SYSTEMD_CGROUP_CONTROLLER, s->user->manager->cgroup_root) > 0) )
1021 void session_add_to_gc_queue(Session *s) {
1027 LIST_PREPEND(gc_queue, s->manager->session_gc_queue, s);
1028 s->in_gc_queue = true;
1031 SessionState session_get_state(Session *s) {
1034 /* always check closing first */
1035 if (s->stopping || s->timer_event_source)
1036 return SESSION_CLOSING;
1038 /// elogind does not support systemd scope_jobs
1040 if (s->scope_job || s->fifo_fd < 0)
1044 return SESSION_OPENING;
1046 if (session_is_active(s))
1047 return SESSION_ACTIVE;
1049 return SESSION_ONLINE;
1052 int session_kill(Session *s, KillWho who, int signo) {
1055 /// Without direct cgroup support, elogind can not kill sessions
1060 return manager_kill_unit(s->manager, s->scope, who, signo, NULL);
1062 if (who == KILL_LEADER) {
1066 /* FIXME: verify that leader is in cgroup? */
1068 if (kill(s->leader, signo) < 0) {
1069 return log_error_errno(errno, "Failed to kill process leader %d for session %s: %m", s->leader, s->id);
1073 bool sigcont = false;
1074 bool ignore_self = true;
1076 return cg_kill_recursive (SYSTEMD_CGROUP_CONTROLLER, s->id, signo,
1077 sigcont, ignore_self, rem, NULL);
1082 static int session_open_vt(Session *s) {
1083 char path[sizeof("/dev/tty") + DECIMAL_STR_MAX(s->vtnr)];
1091 sprintf(path, "/dev/tty%u", s->vtnr);
1092 s->vtfd = open_terminal(path, O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY);
1094 return log_error_errno(errno, "cannot open VT %s of session %s: %m", path, s->id);
1099 int session_prepare_vt(Session *s) {
1101 struct vt_mode mode = { 0 };
1106 vt = session_open_vt(s);
1110 r = fchown(vt, s->user->uid, -1);
1113 log_error_errno(errno, "Cannot change owner of /dev/tty%u: %m", s->vtnr);
1117 r = ioctl(vt, KDSKBMODE, K_OFF);
1120 log_error_errno(errno, "Cannot set K_OFF on /dev/tty%u: %m", s->vtnr);
1124 r = ioctl(vt, KDSETMODE, KD_GRAPHICS);
1127 log_error_errno(errno, "Cannot set KD_GRAPHICS on /dev/tty%u: %m", s->vtnr);
1131 /* Oh, thanks to the VT layer, VT_AUTO does not work with KD_GRAPHICS.
1132 * So we need a dummy handler here which just acknowledges *all* VT
1133 * switch requests. */
1134 mode.mode = VT_PROCESS;
1135 mode.relsig = SIGRTMIN;
1136 mode.acqsig = SIGRTMIN + 1;
1137 r = ioctl(vt, VT_SETMODE, &mode);
1140 log_error_errno(errno, "Cannot set VT_PROCESS on /dev/tty%u: %m", s->vtnr);
1147 session_restore_vt(s);
1151 void session_restore_vt(Session *s) {
1152 _cleanup_free_ char *utf8 = NULL;
1153 int vt, kb = K_XLATE;
1154 struct vt_mode mode = { 0 };
1156 /* We need to get a fresh handle to the virtual terminal,
1157 * since the old file-descriptor is potentially in a hung-up
1158 * state after the controlling process exited; we do a
1159 * little dance to avoid having the terminal be available
1160 * for reuse before we've cleaned it up.
1162 int old_fd = s->vtfd;
1165 vt = session_open_vt(s);
1171 (void) ioctl(vt, KDSETMODE, KD_TEXT);
1173 if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && *utf8 == '1')
1176 (void) ioctl(vt, KDSKBMODE, kb);
1178 mode.mode = VT_AUTO;
1179 (void) ioctl(vt, VT_SETMODE, &mode);
1183 s->vtfd = safe_close(s->vtfd);
1186 void session_leave_vt(Session *s) {
1191 /* This is called whenever we get a VT-switch signal from the kernel.
1192 * We acknowledge all of them unconditionally. Note that session are
1193 * free to overwrite those handlers and we only register them for
1194 * sessions with controllers. Legacy sessions are not affected.
1195 * However, if we switch from a non-legacy to a legacy session, we must
1196 * make sure to pause all device before acknowledging the switch. We
1197 * process the real switch only after we are notified via sysfs, so the
1198 * legacy session might have already started using the devices. If we
1199 * don't pause the devices before the switch, we might confuse the
1200 * session we switch to. */
1205 session_device_pause_all(s);
1206 r = ioctl(s->vtfd, VT_RELDISP, 1);
1208 log_debug_errno(errno, "Cannot release VT of session %s: %m", s->id);
1211 bool session_is_controller(Session *s, const char *sender) {
1214 return streq_ptr(s->controller, sender);
1217 static void session_release_controller(Session *s, bool notify) {
1218 _cleanup_free_ char *name = NULL;
1224 name = s->controller;
1226 /* By resetting the controller before releasing the devices, we won't
1227 * send notification signals. This avoids sending useless notifications
1228 * if the controller is released on disconnects. */
1230 s->controller = NULL;
1232 while ((sd = hashmap_first(s->devices)))
1233 session_device_free(sd);
1235 s->controller = NULL;
1236 s->track = sd_bus_track_unref(s->track);
1239 static int on_bus_track(sd_bus_track *track, void *userdata) {
1240 Session *s = userdata;
1245 session_drop_controller(s);
1250 int session_set_controller(Session *s, const char *sender, bool force) {
1251 _cleanup_free_ char *name = NULL;
1257 if (session_is_controller(s, sender))
1259 if (s->controller && !force)
1262 name = strdup(sender);
1266 s->track = sd_bus_track_unref(s->track);
1267 r = sd_bus_track_new(s->manager->bus, &s->track, on_bus_track, s);
1271 r = sd_bus_track_add_name(s->track, name);
1275 /* When setting a session controller, we forcibly mute the VT and set
1276 * it into graphics-mode. Applications can override that by changing
1277 * VT state after calling TakeControl(). However, this serves as a good
1278 * default and well-behaving controllers can now ignore VTs entirely.
1279 * Note that we reset the VT on ReleaseControl() and if the controller
1281 * If logind crashes/restarts, we restore the controller during restart
1282 * or reset the VT in case it crashed/exited, too. */
1283 r = session_prepare_vt(s);
1285 s->track = sd_bus_track_unref(s->track);
1289 session_release_controller(s, true);
1290 s->controller = name;
1297 void session_drop_controller(Session *s) {
1303 s->track = sd_bus_track_unref(s->track);
1304 session_release_controller(s, false);
1306 session_restore_vt(s);
1309 static const char* const session_state_table[_SESSION_STATE_MAX] = {
1310 [SESSION_OPENING] = "opening",
1311 [SESSION_ONLINE] = "online",
1312 [SESSION_ACTIVE] = "active",
1313 [SESSION_CLOSING] = "closing"
1316 DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState);
1318 static const char* const session_type_table[_SESSION_TYPE_MAX] = {
1319 [SESSION_UNSPECIFIED] = "unspecified",
1320 [SESSION_TTY] = "tty",
1321 [SESSION_X11] = "x11",
1322 [SESSION_WAYLAND] = "wayland",
1323 [SESSION_MIR] = "mir",
1324 [SESSION_WEB] = "web",
1327 DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType);
1329 static const char* const session_class_table[_SESSION_CLASS_MAX] = {
1330 [SESSION_USER] = "user",
1331 [SESSION_GREETER] = "greeter",
1332 [SESSION_LOCK_SCREEN] = "lock-screen",
1333 [SESSION_BACKGROUND] = "background"
1336 DEFINE_STRING_TABLE_LOOKUP(session_class, SessionClass);
1338 static const char* const kill_who_table[_KILL_WHO_MAX] = {
1339 [KILL_LEADER] = "leader",
1343 DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho);