2 * Copyright (C) 2010-2011 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This program is free software: you can redistribute it and/or modify it under
6 * the terms of the GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option) any later
8 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
17 #include "configuration.h"
18 #include "guest-account.h"
19 #include "greeter-session.h"
20 #include "session-config.h"
29 static guint signals[LAST_SIGNAL] = { 0 };
33 /* XDG name for this seat */
36 /* Configuration for this seat */
37 GHashTable *properties;
39 /* TRUE if this seat can run multiple sessions at once */
40 gboolean supports_multi_session;
42 /* TRUE if display server can be shared for sessions */
43 gboolean share_display_server;
45 /* The display servers on this seat */
46 GList *display_servers;
48 /* The sessions on this seat */
51 /* The last session set to active */
52 Session *active_session;
54 /* The session belonging to the active greeter user */
55 Session *next_session;
57 /* The session to set active when it starts */
58 Session *session_to_activate;
60 /* TRUE once we have started */
63 /* TRUE if stopping this seat (waiting for displays to stop) */
69 /* The greeter to be started to replace the current one */
70 GreeterSession *replacement_greeter;
73 static void seat_logger_iface_init (LoggerInterface *iface);
75 G_DEFINE_TYPE_WITH_CODE (Seat, seat, G_TYPE_OBJECT,
76 G_IMPLEMENT_INTERFACE (
77 LOGGER_TYPE, seat_logger_iface_init));
84 static GHashTable *seat_modules = NULL;
86 // FIXME: Make a get_display_server() that re-uses display servers if supported
87 static DisplayServer *create_display_server (Seat *seat, Session *session);
88 static gboolean start_display_server (Seat *seat, DisplayServer *display_server);
89 static GreeterSession *create_greeter_session (Seat *seat);
90 static void start_session (Seat *seat, Session *session);
93 free_seat_module (gpointer data)
95 SeatModule *module = data;
96 g_free (module->name);
101 seat_register_module (const gchar *name, GType type)
106 seat_modules = g_hash_table_new_full (g_str_hash, g_str_equal, free_seat_module, NULL);
108 g_debug ("Registered seat module %s", name);
110 module = g_malloc0 (sizeof (SeatModule));
111 module->name = g_strdup (name);
113 g_hash_table_insert (seat_modules, g_strdup (name), module);
117 seat_new (const gchar *module_name, const gchar *name)
120 SeatModule *m = NULL;
122 g_return_val_if_fail (module_name != NULL, NULL);
125 m = g_hash_table_lookup (seat_modules, module_name);
129 seat = g_object_new (m->type, NULL);
130 seat->priv->name = g_strdup (name);
136 seat_set_property (Seat *seat, const gchar *name, const gchar *value)
138 g_return_if_fail (seat != NULL);
139 g_hash_table_insert (seat->priv->properties, g_strdup (name), g_strdup (value));
143 seat_get_string_property (Seat *seat, const gchar *name)
145 g_return_val_if_fail (seat != NULL, NULL);
146 return g_hash_table_lookup (seat->priv->properties, name);
150 seat_get_string_list_property (Seat *seat, const gchar *name)
152 g_return_val_if_fail (seat != NULL, NULL);
153 return g_strsplit (g_hash_table_lookup (seat->priv->properties, name), ";", 0);
157 seat_get_boolean_property (Seat *seat, const gchar *name)
162 value = seat_get_string_property (seat, name);
166 /* Count the number of non-whitespace characters */
167 for (i = 0; value[i]; i++)
168 if (!g_ascii_isspace (value[i]))
171 return strncmp (value, "true", MAX (length, 4)) == 0;
175 seat_get_integer_property (Seat *seat, const gchar *name)
179 value = seat_get_string_property (seat, name);
180 return value ? atoi (value) : 0;
184 seat_get_name (Seat *seat)
186 return seat->priv->name;
190 seat_set_supports_multi_session (Seat *seat, gboolean supports_multi_session)
192 g_return_if_fail (seat != NULL);
193 seat->priv->supports_multi_session = supports_multi_session;
197 seat_set_share_display_server (Seat *seat, gboolean share_display_server)
199 g_return_if_fail (seat != NULL);
200 seat->priv->share_display_server = share_display_server;
204 seat_start (Seat *seat)
206 g_return_val_if_fail (seat != NULL, FALSE);
208 l_debug (seat, "Starting");
210 SEAT_GET_CLASS (seat)->setup (seat);
211 seat->priv->started = SEAT_GET_CLASS (seat)->start (seat);
213 return seat->priv->started;
217 seat_get_sessions (Seat *seat)
219 g_return_val_if_fail (seat != NULL, NULL);
220 return seat->priv->sessions;
224 set_greeter_idle (gpointer greeter)
226 greeter_idle (GREETER (greeter));
231 seat_set_active_session (Seat *seat, Session *session)
235 g_return_if_fail (seat != NULL);
237 SEAT_GET_CLASS (seat)->set_active_session (seat, session);
239 /* Stop any greeters */
240 for (link = seat->priv->sessions; link; link = link->next)
242 Session *s = link->data;
244 if (s == session || session_get_is_stopping (s))
247 if (IS_GREETER_SESSION (s))
249 Greeter *greeter = greeter_session_get_greeter (GREETER_SESSION (s));
250 if (greeter_get_resettable (greeter))
252 if (seat->priv->active_session == s)
254 l_debug (seat, "Idling greeter");
255 /* Do this in an idle callback, because we might very well
256 be in the middle of responding to a START_SESSION
257 request by a greeter. So they won't expect an IDLE
258 call during that. Plus, this isn't time-sensitive. */
259 g_idle_add (set_greeter_idle, greeter);
264 l_debug (seat, "Stopping greeter");
270 /* Lock previous sessions */
271 if (seat->priv->active_session && session != seat->priv->active_session && !IS_GREETER_SESSION (seat->priv->active_session))
272 session_lock (seat->priv->active_session);
274 session_activate (session);
275 g_clear_object (&seat->priv->active_session);
276 seat->priv->active_session = g_object_ref (session);
280 seat_get_active_session (Seat *seat)
282 g_return_val_if_fail (seat != NULL, NULL);
283 return SEAT_GET_CLASS (seat)->get_active_session (seat);
287 seat_get_next_session (Seat *seat)
289 g_return_val_if_fail (seat != NULL, NULL);
290 return seat->priv->next_session;
294 * Obtains the active session which lightdm expects to be active.
296 * This function is different from seat_get_active_session() in that the
297 * later (in the case of local seats) dynamically finds the session that is
298 * really active (based on the active VT), whereas this function returns the
299 * session that lightdm activated last by itself, which may not be the actual
300 * active session (i.e. VT changes).
303 seat_get_expected_active_session (Seat *seat)
305 g_return_val_if_fail (seat != NULL, NULL);
306 return seat->priv->active_session;
310 * Sets the active session which lightdm expects to be active.
312 * This function is different from seat_set_active_session() in that the
313 * later performs an actual session activation, whereas this function just
314 * updates the active session after the session has been activated by some
315 * means external to lightdm (i.e. VT changes).
318 seat_set_externally_activated_session (Seat *seat, Session *session)
320 g_return_if_fail (seat != NULL);
321 g_clear_object (&seat->priv->active_session);
322 seat->priv->active_session = g_object_ref (session);
326 seat_find_session_by_login1_id (Seat *seat, const gchar *login1_session_id)
330 for (session_link = seat->priv->sessions; session_link; session_link = session_link->next)
332 Session *session = session_link->data;
333 if (g_strcmp0 (login1_session_id, session_get_login1_session_id (session)) == 0)
341 seat_get_can_switch (Seat *seat)
343 g_return_val_if_fail (seat != NULL, FALSE);
344 return seat_get_boolean_property (seat, "allow-user-switching") && seat->priv->supports_multi_session;
348 seat_get_allow_guest (Seat *seat)
350 g_return_val_if_fail (seat != NULL, FALSE);
351 return seat_get_boolean_property (seat, "allow-guest") && guest_account_is_installed ();
355 run_script (Seat *seat, DisplayServer *display_server, const gchar *script_name, User *user)
358 gboolean result = FALSE;
360 script = process_new (NULL, NULL);
362 process_set_command (script, script_name);
364 /* Set POSIX variables */
365 process_set_clear_environment (script, TRUE);
366 process_set_env (script, "SHELL", "/bin/sh");
368 /* Variables required for regression tests */
369 if (g_getenv ("LIGHTDM_TEST_ROOT"))
371 process_set_env (script, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
372 process_set_env (script, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
373 process_set_env (script, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
374 process_set_env (script, "PATH", g_getenv ("PATH"));
377 process_set_env (script, "PATH", "/usr/local/bin:/usr/bin:/bin");
381 process_set_env (script, "USER", user_get_name (user));
382 process_set_env (script, "LOGNAME", user_get_name (user));
383 process_set_env (script, "HOME", user_get_home_directory (user));
386 process_set_env (script, "HOME", "/");
388 SEAT_GET_CLASS (seat)->run_script (seat, display_server, script);
390 if (process_start (script, TRUE))
394 exit_status = process_get_exit_status (script);
395 if (WIFEXITED (exit_status))
397 l_debug (seat, "Exit status of %s: %d", script_name, WEXITSTATUS (exit_status));
398 result = WEXITSTATUS (exit_status) == EXIT_SUCCESS;
402 g_object_unref (script);
408 seat_real_run_script (Seat *seat, DisplayServer *display_server, Process *process)
413 emit_upstart_signal (const gchar *signal)
415 g_return_if_fail (signal != NULL);
416 g_return_if_fail (signal[0] != 0);
422 /* OK if it fails, probably not installed or not running upstart */
423 p = g_subprocess_new (G_SUBPROCESS_FLAGS_STDERR_SILENCE, NULL, "initctl", "-q", "emit", signal, "DISPLAY_MANAGER=lightdm", NULL);
428 check_stopped (Seat *seat)
430 if (seat->priv->stopping &&
431 !seat->priv->stopped &&
432 g_list_length (seat->priv->display_servers) == 0 &&
433 g_list_length (seat->priv->sessions) == 0)
435 seat->priv->stopped = TRUE;
436 l_debug (seat, "Stopped");
437 g_signal_emit (seat, signals[STOPPED], 0);
442 display_server_stopped_cb (DisplayServer *display_server, Seat *seat)
446 Session *active_session;
448 l_debug (seat, "Display server stopped");
450 /* Run a script right after stopping the display server */
451 script = seat_get_string_property (seat, "display-stopped-script");
453 run_script (seat, NULL, script, NULL);
455 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
456 seat->priv->display_servers = g_list_remove (seat->priv->display_servers, display_server);
458 if (seat->priv->stopping || !seat->priv->started)
460 check_stopped (seat);
461 g_object_unref (display_server);
465 /* Stop all sessions on this display server */
466 list = g_list_copy (seat->priv->sessions);
467 for (link = list; link; link = link->next)
468 g_object_ref (link->data);
469 for (link = list; link; link = link->next)
471 Session *session = link->data;
473 if (session_get_display_server (session) != display_server || session_get_is_stopping (session))
476 /* Stop seat if this is the only display server and it failed to start a greeter */
477 if (IS_GREETER_SESSION (session) &&
478 !session_get_is_started (session) &&
479 g_list_length (seat->priv->display_servers) == 0)
481 l_debug (seat, "Stopping; greeter display server failed to start");
485 l_debug (seat, "Stopping session");
486 session_stop (session);
488 g_list_free_full (list, g_object_unref);
490 if (!seat->priv->stopping)
492 /* If we were the active session, switch to a greeter */
493 active_session = seat_get_active_session (seat);
494 if (!active_session || session_get_display_server (active_session) == display_server)
496 l_debug (seat, "Active display server stopped, starting greeter");
497 if (!seat_switch_to_greeter (seat))
499 l_debug (seat, "Stopping; failed to start a greeter");
505 g_object_unref (display_server);
509 can_share_display_server (Seat *seat, DisplayServer *display_server)
511 return seat->priv->share_display_server && display_server_get_can_share (display_server);
514 static GreeterSession *
515 find_greeter_session (Seat *seat)
519 for (link = seat->priv->sessions; link; link = link->next)
521 Session *session = link->data;
522 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session))
523 return GREETER_SESSION (session);
529 static GreeterSession *
530 find_resettable_greeter (Seat *seat)
534 for (link = seat->priv->sessions; link; link = link->next)
536 Session *session = link->data;
537 if (!session_get_is_stopping (session) && IS_GREETER_SESSION (session) &&
538 greeter_get_resettable (greeter_session_get_greeter (GREETER_SESSION (session))))
539 return GREETER_SESSION (session);
546 set_greeter_hints (Seat *seat, Greeter *greeter)
548 greeter_clear_hints (greeter);
549 greeter_set_hint (greeter, "default-session", seat_get_string_property (seat, "user-session"));
550 greeter_set_hint (greeter, "hide-users", seat_get_boolean_property (seat, "greeter-hide-users") ? "true" : "false");
551 greeter_set_hint (greeter, "show-manual-login", seat_get_boolean_property (seat, "greeter-show-manual-login") ? "true" : "false");
552 greeter_set_hint (greeter, "show-remote-login", seat_get_boolean_property (seat, "greeter-show-remote-login") ? "true" : "false");
553 greeter_set_hint (greeter, "has-guest-account", seat_get_allow_guest (seat) && seat_get_boolean_property (seat, "greeter-allow-guest") ? "true" : "false");
557 switch_to_greeter_from_failed_session (Seat *seat, Session *session)
559 GreeterSession *greeter_session;
561 gboolean existing = FALSE;
563 /* Switch to greeter if one open */
564 greeter_session = find_resettable_greeter (seat);
567 l_debug (seat, "Switching to existing greeter");
568 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
573 greeter_session = create_greeter_session (seat);
575 greeter = greeter_session_get_greeter (greeter_session);
577 if (session_get_is_guest (session))
578 greeter_set_hint (greeter, "select-guest", "true");
580 greeter_set_hint (greeter, "select-user", session_get_username (session));
584 greeter_reset (greeter);
585 seat_set_active_session (seat, SESSION (greeter_session));
589 g_clear_object (&seat->priv->session_to_activate);
590 seat->priv->session_to_activate = g_object_ref (greeter_session);
592 if (can_share_display_server (seat, session_get_display_server (session)))
593 session_set_display_server (SESSION (greeter_session), session_get_display_server (session));
596 DisplayServer *display_server;
598 display_server = create_display_server (seat, session);
599 session_set_display_server (session, display_server);
600 if (!start_display_server (seat, display_server))
602 l_debug (seat, "Failed to start display server for greeter");
607 start_session (seat, SESSION (greeter_session));
610 /* Stop failed session */
611 session_stop (session);
615 start_session (Seat *seat, Session *session)
617 /* Use system location for greeter log file */
618 if (IS_GREETER_SESSION (session))
620 gchar *log_dir, *filename, *log_filename;
621 gboolean backup_logs;
623 log_dir = config_get_string (config_get_instance (), "LightDM", "log-directory");
624 filename = g_strdup_printf ("%s-greeter.log", seat->priv->name);
625 log_filename = g_build_filename (log_dir, filename, NULL);
628 backup_logs = config_get_boolean (config_get_instance (), "LightDM", "backup-logs");
629 session_set_log_file (session, log_filename, backup_logs ? LOG_MODE_BACKUP_AND_TRUNCATE : LOG_MODE_APPEND);
630 g_free (log_filename);
633 if (session_start (session))
636 if (IS_GREETER_SESSION (session))
638 l_debug (seat, "Failed to start greeter");
639 display_server_stop (session_get_display_server (session));
643 l_debug (seat, "Failed to start session, starting greeter");
644 switch_to_greeter_from_failed_session (seat, session);
648 run_session (Seat *seat, Session *session)
652 if (IS_GREETER_SESSION (session))
653 script = seat_get_string_property (seat, "greeter-setup-script");
655 script = seat_get_string_property (seat, "session-setup-script");
656 if (script && !run_script (seat, session_get_display_server (session), script, session_get_user (session)))
658 l_debug (seat, "Switching to greeter due to failed setup script");
659 switch_to_greeter_from_failed_session (seat, session);
663 if (!IS_GREETER_SESSION (session))
665 g_signal_emit (seat, signals[RUNNING_USER_SESSION], 0, session);
666 emit_upstart_signal ("desktop-session-start");
669 session_run (session);
671 // FIXME: Wait until the session is ready
673 if (session == seat->priv->session_to_activate)
675 seat_set_active_session (seat, session);
676 g_clear_object (&seat->priv->session_to_activate);
678 else if (seat->priv->active_session)
680 /* Multiple sessions can theoretically be on the same VT (especially
681 if using Mir). If a new session appears on an existing active VT,
682 logind will mark it as active, while ConsoleKit will re-mark the
683 oldest session as active. In either case, that may not be the
684 session that we want to be active. So let's be explicit and
685 re-activate the correct session whenever a new session starts.
686 There's no harm to do this in seats that enforce separate VTs. */
687 session_activate (seat->priv->active_session);
692 find_user_session (Seat *seat, const gchar *username, Session *ignore_session)
699 for (link = seat->priv->sessions; link; link = link->next)
701 Session *session = link->data;
703 if (session == ignore_session)
706 if (!session_get_is_stopping (session) && g_strcmp0 (session_get_username (session), username) == 0)
714 greeter_active_username_changed_cb (Greeter *greeter, GParamSpec *pspec, Seat *seat)
718 session = find_user_session (seat, greeter_get_active_username (greeter), seat->priv->active_session);
720 g_clear_object (&seat->priv->next_session);
721 seat->priv->next_session = session ? g_object_ref (session) : NULL;
723 SEAT_GET_CLASS (seat)->set_next_session (seat, session);
727 session_authentication_complete_cb (Session *session, Seat *seat)
729 if (session_get_is_authenticated (session))
733 s = find_user_session (seat, session_get_username (session), session);
736 l_debug (seat, "Session authenticated, switching to existing user session");
737 seat_set_active_session (seat, s);
738 session_stop (session);
742 l_debug (seat, "Session authenticated, running command");
743 run_session (seat, session);
746 else if (!IS_GREETER_SESSION (session))
748 l_debug (seat, "Switching to greeter due to failed authentication");
749 switch_to_greeter_from_failed_session (seat, session);
753 l_debug (seat, "Stopping session that failed authentication");
754 session_stop (session);
759 session_stopped_cb (Session *session, Seat *seat)
761 DisplayServer *display_server;
763 l_debug (seat, "Session stopped");
765 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, seat);
766 seat->priv->sessions = g_list_remove (seat->priv->sessions, session);
767 if (session == seat->priv->active_session)
768 g_clear_object (&seat->priv->active_session);
769 if (session == seat->priv->next_session)
770 g_clear_object (&seat->priv->next_session);
771 if (session == seat->priv->session_to_activate)
772 g_clear_object (&seat->priv->session_to_activate);
774 display_server = session_get_display_server (session);
777 g_object_unref (session);
782 if (!IS_GREETER_SESSION (session))
785 script = seat_get_string_property (seat, "session-cleanup-script");
787 run_script (seat, display_server, script, session_get_user (session));
790 /* We were waiting for this session, but it didn't start :( */
791 // FIXME: Start a greeter on this?
792 if (session == seat->priv->session_to_activate)
793 g_clear_object (&seat->priv->session_to_activate);
795 if (seat->priv->stopping)
797 check_stopped (seat);
798 g_object_unref (session);
802 /* If there is a pending replacement greeter, start it */
803 if (IS_GREETER_SESSION (session) && seat->priv->replacement_greeter)
805 GreeterSession *replacement_greeter = seat->priv->replacement_greeter;
806 seat->priv->replacement_greeter = NULL;
808 if (session_get_is_authenticated (SESSION (replacement_greeter)))
810 l_debug (seat, "Greeter stopped, running session");
811 run_session (seat, SESSION (replacement_greeter));
815 l_debug (seat, "Greeter stopped, starting session authentication");
816 start_session (seat, SESSION (replacement_greeter));
819 g_object_unref (replacement_greeter);
821 /* If this is the greeter session then re-use this display server */
822 else if (IS_GREETER_SESSION (session) &&
823 can_share_display_server (seat, display_server) &&
824 greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))))
828 for (link = seat->priv->sessions; link; link = link->next)
830 Session *s = link->data;
832 /* Skip this session and sessions on other display servers */
833 if (s == session || session_get_display_server (s) != display_server || session_get_is_stopping (s))
836 if (session_get_is_authenticated (s))
838 l_debug (seat, "Greeter stopped, running session");
839 run_session (seat, s);
843 l_debug (seat, "Greeter stopped, starting session authentication");
844 start_session (seat, s);
849 /* If this is the greeter and nothing else is running then stop the seat */
850 else if (IS_GREETER_SESSION (session) &&
851 !greeter_get_start_session (greeter_session_get_greeter (GREETER_SESSION (session))) &&
852 g_list_length (seat->priv->display_servers) == 1 &&
853 g_list_nth_data (seat->priv->display_servers, 0) == display_server)
855 l_debug (seat, "Stopping; failed to start a greeter");
858 /* If we were the active session, switch to a greeter */
859 else if (!IS_GREETER_SESSION (session) && session == seat_get_active_session (seat))
861 l_debug (seat, "Active session stopped, starting greeter");
862 if (!seat_switch_to_greeter (seat))
864 l_debug (seat, "Stopping; failed to start a greeter");
869 /* Stop the display server if no-longer required */
870 if (display_server && !display_server_get_is_stopping (display_server) &&
871 !SEAT_GET_CLASS (seat)->display_server_is_used (seat, display_server))
873 l_debug (seat, "Stopping display server, no sessions require it");
874 display_server_stop (display_server);
877 g_signal_emit (seat, signals[SESSION_REMOVED], 0, session);
878 g_object_unref (session);
882 set_session_env (Session *session)
884 /* Connect using the session bus */
887 if (g_getenv ("DBUS_SESSION_BUS_ADDRESS"))
888 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
889 session_set_env (session, "LDM_BUS", "SESSION");
890 if (g_getenv ("LD_PRELOAD"))
891 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
892 if (g_getenv ("LD_LIBRARY_PATH"))
893 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
894 if (g_getenv ("PATH"))
895 session_set_env (session, "PATH", g_getenv ("PATH"));
898 /* Variables required for regression tests */
899 if (g_getenv ("LIGHTDM_TEST_ROOT"))
901 session_set_env (session, "LIGHTDM_TEST_ROOT", g_getenv ("LIGHTDM_TEST_ROOT"));
902 session_set_env (session, "DBUS_SYSTEM_BUS_ADDRESS", g_getenv ("DBUS_SYSTEM_BUS_ADDRESS"));
903 session_set_env (session, "DBUS_SESSION_BUS_ADDRESS", g_getenv ("DBUS_SESSION_BUS_ADDRESS"));
904 session_set_env (session, "LD_PRELOAD", g_getenv ("LD_PRELOAD"));
905 session_set_env (session, "LD_LIBRARY_PATH", g_getenv ("LD_LIBRARY_PATH"));
906 session_set_env (session, "GI_TYPELIB_PATH", g_getenv ("GI_TYPELIB_PATH"));
911 create_session (Seat *seat, gboolean autostart)
915 session = SEAT_GET_CLASS (seat)->create_session (seat);
916 seat->priv->sessions = g_list_append (seat->priv->sessions, session);
918 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
919 g_signal_connect (session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
921 set_session_env (session);
923 g_signal_emit (seat, signals[SESSION_ADDED], 0, session);
929 get_session_argv (Seat *seat, SessionConfig *session_config, const gchar *session_wrapper)
934 GError *error = NULL;
936 /* If configured, run sessions through a wrapper */
939 argv = g_malloc (sizeof (gchar *) * 3);
940 path = g_find_program_in_path (session_wrapper);
941 argv[0] = path ? path : g_strdup (session_wrapper);
942 argv[1] = g_strdup (session_config_get_command (session_config));
947 /* Split command into an array listing and make command absolute */
948 result = g_shell_parse_argv (session_config_get_command (session_config), &argc, &argv, &error);
950 l_debug (seat, "Invalid session command '%s': %s", session_config_get_command (session_config), error->message);
951 g_clear_error (&error);
954 path = g_find_program_in_path (argv[0]);
964 static SessionConfig *
965 find_session_config (Seat *seat, const gchar *sessions_dir, const gchar *session_name)
968 SessionConfig *session_config = NULL;
970 GError *error = NULL;
972 g_return_val_if_fail (sessions_dir != NULL, NULL);
973 g_return_val_if_fail (session_name != NULL, NULL);
975 dirs = g_strsplit (sessions_dir, ":", -1);
976 for (i = 0; dirs[i]; i++)
978 gchar *filename, *path;
979 const gchar *default_session_type = "x";
981 if (strcmp (dirs[i], WAYLAND_SESSIONS_DIR) == 0)
982 default_session_type = "wayland";
984 filename = g_strdup_printf ("%s.desktop", session_name);
985 path = g_build_filename (dirs[i], filename, NULL);
987 session_config = session_config_new_from_file (path, default_session_type, &error);
992 if (dirs[i+1] == NULL)
993 l_debug (seat, "Failed to find session configuration %s", session_name);
994 g_clear_error (&error);
998 return session_config;
1002 configure_session (Session *session, SessionConfig *config, const gchar *session_name, const gchar *language)
1004 gchar **desktop_names;
1006 session_set_config (session, config);
1007 session_set_env (session, "XDG_SESSION_DESKTOP", session_name);
1008 session_set_env (session, "DESKTOP_SESSION", session_name);
1009 session_set_env (session, "GDMSESSION", session_name);
1010 desktop_names = session_config_get_desktop_names (config);
1014 value = g_strjoinv (":", desktop_names);
1015 session_set_env (session, "XDG_CURRENT_DESKTOP", value);
1018 if (language && language[0] != '\0')
1020 session_set_env (session, "LANG", language);
1021 session_set_env (session, "GDM_LANG", language);
1026 create_user_session (Seat *seat, const gchar *username, gboolean autostart)
1029 gchar *sessions_dir;
1030 const gchar *session_name, *language;
1031 SessionConfig *session_config;
1032 Session *session = NULL;
1034 l_debug (seat, "Creating user session");
1036 /* Load user preferences */
1037 user = accounts_get_user_by_name (username);
1040 l_debug (seat, "Can't login unknown user '%s'", username);
1043 session_name = user_get_xsession (user);
1044 language = user_get_language (user);
1046 /* Override session for autologin if configured */
1049 const gchar *autologin_session_name = seat_get_string_property (seat, "autologin-session");
1050 if (autologin_session_name)
1051 session_name = autologin_session_name;
1055 session_name = seat_get_string_property (seat, "user-session");
1056 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1057 session_config = find_session_config (seat, sessions_dir, session_name);
1058 g_free (sessions_dir);
1063 session = create_session (seat, autostart);
1064 configure_session (session, session_config, session_name, language);
1065 session_set_username (session, username);
1066 session_set_do_authenticate (session, TRUE);
1067 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1068 session_set_argv (session, argv);
1070 g_object_unref (session_config);
1073 l_debug (seat, "Can't find session '%s'", session_name);
1075 g_object_unref (user);
1081 prepend_argv (gchar ***argv, const gchar *value)
1083 gchar **old_argv, **new_argv;
1087 new_argv = g_malloc (sizeof (gchar *) * (g_strv_length (*argv) + 2));
1088 new_argv[0] = g_strdup (value);
1089 for (i = 0; old_argv[i]; i++)
1090 new_argv[i + 1] = old_argv[i];
1091 new_argv[i + 1] = NULL;
1098 create_guest_session (Seat *seat, const gchar *session_name)
1100 const gchar *guest_wrapper;
1101 gchar *sessions_dir, **argv;
1102 SessionConfig *session_config;
1106 session_name = seat_get_string_property (seat, "guest-session");
1108 session_name = seat_get_string_property (seat, "user-session");
1109 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1110 session_config = find_session_config (seat, sessions_dir, session_name);
1111 g_free (sessions_dir);
1112 if (!session_config)
1114 l_debug (seat, "Can't find session '%s'", session_name);
1118 session = create_session (seat, TRUE);
1119 configure_session (session, session_config, session_name, NULL);
1120 session_set_do_authenticate (session, TRUE);
1121 session_set_is_guest (session, TRUE);
1122 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1123 guest_wrapper = seat_get_string_property (seat, "guest-wrapper");
1127 path = g_find_program_in_path (guest_wrapper);
1128 prepend_argv (&argv, path ? path : guest_wrapper);
1132 session_set_argv (session, argv);
1134 g_object_unref (session_config);
1139 // FIXME: This is inefficient and we already know the greeter session when we set the callbacks...
1141 get_greeter_session (Seat *seat, Greeter *greeter)
1145 /* Stop any greeters */
1146 for (link = seat->priv->sessions; link; link = link->next)
1148 Session *session = link->data;
1150 if (IS_GREETER_SESSION (session) && greeter_session_get_greeter (GREETER_SESSION (session)))
1158 greeter_create_session_cb (Greeter *greeter, Seat *seat)
1160 Session *greeter_session, *session;
1162 greeter_session = get_greeter_session (seat, greeter);
1163 session = create_session (seat, FALSE);
1164 session_set_config (session, session_get_config (greeter_session));
1165 session_set_display_server (session, session_get_display_server (greeter_session));
1167 return g_object_ref (session);
1171 greeter_start_session_cb (Greeter *greeter, SessionType type, const gchar *session_name, Seat *seat)
1173 Session *session, *existing_session, *greeter_session;
1174 const gchar *username;
1175 DisplayServer *display_server;
1177 /* Get the session to use */
1178 if (greeter_get_guest_authenticated (greeter))
1180 session = create_guest_session (seat, session_name);
1183 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1187 const gchar *language = NULL;
1188 SessionConfig *session_config;
1190 gchar *sessions_dir = NULL;
1193 session = greeter_get_authentication_session (greeter);
1195 /* Get session command to run */
1198 case SESSION_TYPE_LOCAL:
1199 sessions_dir = config_get_string (config_get_instance (), "LightDM", "sessions-directory");
1201 case SESSION_TYPE_REMOTE:
1202 sessions_dir = config_get_string (config_get_instance (), "LightDM", "remote-sessions-directory");
1206 /* Load user preferences */
1207 user = session_get_user (session);
1211 session_name = user_get_xsession (user);
1212 language = user_get_language (user);
1216 session_name = seat_get_string_property (seat, "user-session");
1218 user_set_xsession (session_get_user (session), session_name);
1220 session_config = find_session_config (seat, sessions_dir, session_name);
1221 g_free (sessions_dir);
1222 if (!session_config)
1224 l_debug (seat, "Can't find session '%s'", session_name);
1228 configure_session (session, session_config, session_name, language);
1229 argv = get_session_argv (seat, session_config, seat_get_string_property (seat, "session-wrapper"));
1230 session_set_argv (session, argv);
1232 g_object_unref (session_config);
1235 /* Switch to this session when it is ready */
1236 g_clear_object (&seat->priv->session_to_activate);
1237 seat->priv->session_to_activate = g_object_ref (session);
1239 /* Return to existing session if it is open */
1240 username = session_get_username (session);
1241 existing_session = find_user_session (seat, username, NULL);
1242 if (existing_session && session != existing_session)
1244 l_debug (seat, "Returning to existing user session %s", username);
1245 session_stop (session);
1246 session_unlock (existing_session);
1247 seat_set_active_session (seat, existing_session);
1251 /* If can re-use the display server, stop the greeter first */
1252 greeter_session = get_greeter_session (seat, greeter);
1253 if (greeter_session)
1255 display_server = session_get_display_server (greeter_session);
1256 if (display_server &&
1257 !greeter_get_resettable (greeter) &&
1258 can_share_display_server (seat, display_server) &&
1259 strcmp (display_server_get_session_type (display_server), session_get_session_type (session)) == 0)
1261 l_debug (seat, "Stopping greeter; display server will be re-used for user session");
1263 /* Run on the same display server after the greeter has stopped */
1264 session_set_display_server (session, display_server);
1266 /* Stop the greeter */
1267 session_stop (greeter_session);
1273 /* Otherwise start a new display server for this session */
1274 display_server = create_display_server (seat, session);
1275 session_set_display_server (session, display_server);
1276 if (!start_display_server (seat, display_server))
1278 l_debug (seat, "Failed to start display server for new session");
1285 static GreeterSession *
1286 create_greeter_session (Seat *seat)
1288 gchar *sessions_dir, **argv;
1289 SessionConfig *session_config;
1290 GreeterSession *greeter_session;
1292 const gchar *greeter_wrapper;
1293 const gchar *autologin_username;
1294 int autologin_timeout;
1295 gboolean autologin_guest;
1297 l_debug (seat, "Creating greeter session");
1299 sessions_dir = config_get_string (config_get_instance (), "LightDM", "greeters-directory");
1300 session_config = find_session_config (seat, sessions_dir, seat_get_string_property (seat, "greeter-session"));
1301 g_free (sessions_dir);
1302 if (!session_config)
1305 argv = get_session_argv (seat, session_config, NULL);
1306 greeter_wrapper = seat_get_string_property (seat, "greeter-wrapper");
1307 if (greeter_wrapper)
1310 path = g_find_program_in_path (greeter_wrapper);
1311 prepend_argv (&argv, path ? path : greeter_wrapper);
1315 greeter_session = SEAT_GET_CLASS (seat)->create_greeter_session (seat);
1316 greeter = greeter_session_get_greeter (greeter_session);
1317 session_set_config (SESSION (greeter_session), session_config);
1318 seat->priv->sessions = g_list_append (seat->priv->sessions, SESSION (greeter_session));
1319 g_signal_connect (greeter, GREETER_SIGNAL_ACTIVE_USERNAME_CHANGED, G_CALLBACK (greeter_active_username_changed_cb), seat);
1320 g_signal_connect (greeter_session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (session_authentication_complete_cb), seat);
1321 g_signal_connect (greeter_session, SESSION_SIGNAL_STOPPED, G_CALLBACK (session_stopped_cb), seat);
1323 set_session_env (SESSION (greeter_session));
1324 session_set_env (SESSION (greeter_session), "XDG_SESSION_CLASS", "greeter");
1326 session_set_pam_service (SESSION (greeter_session), seat_get_string_property (seat, "pam-greeter-service"));
1329 gchar *greeter_user;
1330 greeter_user = config_get_string (config_get_instance (), "LightDM", "greeter-user");
1331 session_set_username (SESSION (greeter_session), greeter_user);
1332 g_free (greeter_user);
1336 /* In test mode run the greeter as ourself */
1337 session_set_username (SESSION (greeter_session), user_get_name (accounts_get_current_user ()));
1339 session_set_argv (SESSION (greeter_session), argv);
1342 greeter_set_pam_services (greeter,
1343 seat_get_string_property (seat, "pam-service"),
1344 seat_get_string_property (seat, "pam-autologin-service"));
1345 g_signal_connect (greeter, GREETER_SIGNAL_CREATE_SESSION, G_CALLBACK (greeter_create_session_cb), seat);
1346 g_signal_connect (greeter, GREETER_SIGNAL_START_SESSION, G_CALLBACK (greeter_start_session_cb), seat);
1348 /* Set hints to greeter */
1349 greeter_set_allow_guest (greeter, seat_get_allow_guest (seat));
1350 set_greeter_hints (seat, greeter);
1352 /* Configure for automatic login */
1353 autologin_username = seat_get_string_property (seat, "autologin-user");
1354 if (g_strcmp0 (autologin_username, "") == 0)
1355 autologin_username = NULL;
1356 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1357 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1358 if (autologin_timeout > 0)
1362 value = g_strdup_printf ("%d", autologin_timeout);
1363 greeter_set_hint (greeter, "autologin-timeout", value);
1365 if (autologin_username)
1366 greeter_set_hint (greeter, "autologin-user", autologin_username);
1367 if (autologin_guest)
1368 greeter_set_hint (greeter, "autologin-guest", "true");
1371 g_object_unref (session_config);
1373 return greeter_session;
1377 find_session_for_display_server (Seat *seat, DisplayServer *display_server)
1381 for (link = seat->priv->sessions; link; link = link->next)
1383 Session *session = link->data;
1385 if (session_get_display_server (session) == display_server &&
1386 !session_get_is_stopping (session) &&
1387 !session_get_is_run (session))
1395 display_server_ready_cb (DisplayServer *display_server, Seat *seat)
1397 const gchar *script;
1400 /* Run setup script */
1401 script = seat_get_string_property (seat, "display-setup-script");
1402 if (script && !run_script (seat, display_server, script, NULL))
1404 l_debug (seat, "Stopping display server due to failed setup script");
1405 display_server_stop (display_server);
1409 emit_upstart_signal ("login-session-start");
1411 /* Start the session waiting for this display server */
1412 session = find_session_for_display_server (seat, display_server);
1415 if (session_get_is_authenticated (session))
1417 l_debug (seat, "Display server ready, running session");
1418 run_session (seat, session);
1422 l_debug (seat, "Display server ready, starting session authentication");
1423 start_session (seat, session);
1428 l_debug (seat, "Stopping not required display server");
1429 display_server_stop (display_server);
1433 static DisplayServer *
1434 create_display_server (Seat *seat, Session *session)
1436 DisplayServer *display_server;
1438 l_debug (seat, "Creating display server of type %s", session_get_session_type (session));
1440 display_server = SEAT_GET_CLASS (seat)->create_display_server (seat, session);
1441 if (!display_server)
1444 /* Remember this display server */
1445 if (!g_list_find (seat->priv->display_servers, display_server))
1447 seat->priv->display_servers = g_list_append (seat->priv->display_servers, display_server);
1448 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_READY, G_CALLBACK (display_server_ready_cb), seat);
1449 g_signal_connect (display_server, DISPLAY_SERVER_SIGNAL_STOPPED, G_CALLBACK (display_server_stopped_cb), seat);
1452 return display_server;
1456 start_display_server (Seat *seat, DisplayServer *display_server)
1458 if (display_server_get_is_ready (display_server))
1460 display_server_ready_cb (display_server, seat);
1464 return display_server_start (display_server);
1468 seat_switch_to_greeter (Seat *seat)
1470 GreeterSession *greeter_session;
1471 DisplayServer *display_server;
1473 g_return_val_if_fail (seat != NULL, FALSE);
1475 if (!seat_get_can_switch (seat))
1478 /* Switch to greeter if one open */
1479 greeter_session = find_greeter_session (seat);
1480 if (greeter_session)
1482 l_debug (seat, "Switching to existing greeter");
1483 seat_set_active_session (seat, SESSION (greeter_session));
1487 greeter_session = create_greeter_session (seat);
1488 if (!greeter_session)
1491 g_clear_object (&seat->priv->session_to_activate);
1492 seat->priv->session_to_activate = g_object_ref (greeter_session);
1494 display_server = create_display_server (seat, SESSION (greeter_session));
1495 session_set_display_server (SESSION (greeter_session), display_server);
1497 return start_display_server (seat, display_server);
1501 switch_authentication_complete_cb (Session *session, Seat *seat)
1503 GreeterSession *greeter_session;
1505 DisplayServer *display_server;
1506 gboolean existing = FALSE;
1508 /* If authenticated, then unlock existing session or start new one */
1509 if (session_get_is_authenticated (session))
1513 s = find_user_session (seat, session_get_username (session), session);
1516 l_debug (seat, "Session authenticated, switching to existing user session");
1518 seat_set_active_session (seat, s);
1519 session_stop (session);
1523 l_debug (seat, "Session authenticated, starting display server");
1524 g_clear_object (&seat->priv->session_to_activate);
1525 seat->priv->session_to_activate = g_object_ref (session);
1526 display_server = create_display_server (seat, session);
1527 session_set_display_server (session, display_server);
1528 start_display_server (seat, display_server);
1534 session_stop (session);
1536 /* See if we already have a greeter up and reuse it if so */
1537 greeter_session = find_resettable_greeter (seat);
1538 if (greeter_session)
1540 l_debug (seat, "Switching to existing greeter to authenticate session");
1541 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1546 l_debug (seat, "Starting greeter to authenticate session");
1547 greeter_session = create_greeter_session (seat);
1549 greeter = greeter_session_get_greeter (greeter_session);
1551 if (session_get_is_guest (session))
1552 greeter_set_hint (greeter, "select-guest", "true");
1554 greeter_set_hint (greeter, "select-user", session_get_username (session));
1558 greeter_reset (greeter);
1559 seat_set_active_session (seat, SESSION (greeter_session));
1563 g_clear_object (&seat->priv->session_to_activate);
1564 seat->priv->session_to_activate = g_object_ref (greeter_session);
1566 display_server = create_display_server (seat, SESSION (greeter_session));
1567 session_set_display_server (SESSION (greeter_session), display_server);
1568 start_display_server (seat, display_server);
1573 seat_switch_to_user (Seat *seat, const gchar *username, const gchar *session_name)
1577 g_return_val_if_fail (seat != NULL, FALSE);
1578 g_return_val_if_fail (username != NULL, FALSE);
1580 if (!seat_get_can_switch (seat))
1583 /* If we're already on this session, then ignore */
1584 session = find_user_session (seat, username, NULL);
1585 if (session && session == seat->priv->active_session)
1588 l_debug (seat, "Switching to user %s", username);
1590 /* Attempt to authenticate them */
1591 session = create_user_session (seat, username, FALSE);
1592 g_signal_connect (session, SESSION_SIGNAL_AUTHENTICATION_COMPLETE, G_CALLBACK (switch_authentication_complete_cb), seat);
1593 session_set_pam_service (session, seat_get_string_property (seat, "pam-service"));
1595 return session_start (session);
1599 find_guest_session (Seat *seat)
1603 for (link = seat->priv->sessions; link; link = link->next)
1605 Session *session = link->data;
1606 if (!session_get_is_stopping (session) && session_get_is_guest (session))
1614 seat_switch_to_guest (Seat *seat, const gchar *session_name)
1617 DisplayServer *display_server;
1619 g_return_val_if_fail (seat != NULL, FALSE);
1621 if (!seat_get_can_switch (seat) || !seat_get_allow_guest (seat))
1624 /* Switch to session if one open */
1625 session = find_guest_session (seat);
1628 l_debug (seat, "Switching to existing guest account %s", session_get_username (session));
1629 seat_set_active_session (seat, session);
1633 session = create_guest_session (seat, session_name);
1637 display_server = create_display_server (seat, session);
1639 g_clear_object (&seat->priv->session_to_activate);
1640 seat->priv->session_to_activate = g_object_ref (session);
1641 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1642 session_set_display_server (session, display_server);
1644 return start_display_server (seat, display_server);
1648 seat_lock (Seat *seat, const gchar *username)
1650 GreeterSession *greeter_session;
1652 DisplayServer *display_server = NULL;
1653 gboolean reset_existing = FALSE;
1654 gboolean reuse_xserver = FALSE;
1656 g_return_val_if_fail (seat != NULL, FALSE);
1658 if (!seat_get_can_switch (seat))
1661 // FIXME: If already locked then don't bother...
1663 l_debug (seat, "Locking");
1665 /* Switch to greeter we can reuse */
1666 greeter_session = find_resettable_greeter (seat);
1667 if (greeter_session)
1669 l_debug (seat, "Switching to existing greeter");
1670 set_greeter_hints (seat, greeter_session_get_greeter (greeter_session));
1671 reset_existing = TRUE;
1675 /* If the existing greeter can't be reused, stop it and reuse its display server */
1676 greeter_session = find_greeter_session (seat);
1677 if (greeter_session)
1679 display_server = session_get_display_server (SESSION (greeter_session));
1680 if (!session_get_is_stopping (SESSION (greeter_session)))
1682 l_debug (seat, "Stopping session");
1683 session_stop (SESSION (greeter_session));
1685 reuse_xserver = TRUE;
1688 greeter_session = create_greeter_session (seat);
1689 if (!greeter_session)
1692 greeter = greeter_session_get_greeter (greeter_session);
1694 greeter_set_hint (greeter, "lock-screen", "true");
1696 greeter_set_hint (greeter, "select-user", username);
1700 greeter_reset (greeter);
1701 seat_set_active_session (seat, SESSION (greeter_session));
1707 display_server = create_display_server (seat, SESSION (greeter_session));
1708 session_set_display_server (SESSION (greeter_session), display_server);
1710 g_clear_object (&seat->priv->session_to_activate);
1711 seat->priv->session_to_activate = g_object_ref (greeter_session);
1715 g_clear_object (&seat->priv->replacement_greeter);
1716 seat->priv->replacement_greeter = g_object_ref (greeter_session);
1720 return start_display_server (seat, display_server);
1725 seat_stop (Seat *seat)
1727 g_return_if_fail (seat != NULL);
1729 if (seat->priv->stopping)
1732 l_debug (seat, "Stopping");
1733 seat->priv->stopping = TRUE;
1734 SEAT_GET_CLASS (seat)->stop (seat);
1738 seat_get_is_stopping (Seat *seat)
1740 g_return_val_if_fail (seat != NULL, FALSE);
1741 return seat->priv->stopping;
1745 seat_real_setup (Seat *seat)
1750 seat_real_start (Seat *seat)
1752 const gchar *autologin_username;
1753 int autologin_timeout;
1754 gboolean autologin_guest;
1755 gboolean autologin_in_background;
1756 Session *session = NULL, *background_session = NULL;
1758 /* Get autologin settings */
1759 autologin_username = seat_get_string_property (seat, "autologin-user");
1760 if (g_strcmp0 (autologin_username, "") == 0)
1761 autologin_username = NULL;
1762 autologin_timeout = seat_get_integer_property (seat, "autologin-user-timeout");
1763 autologin_guest = seat_get_boolean_property (seat, "autologin-guest");
1764 autologin_in_background = seat_get_boolean_property (seat, "autologin-in-background");
1766 /* Autologin if configured */
1767 if (autologin_timeout == 0 || autologin_in_background)
1769 if (autologin_guest)
1770 session = create_guest_session (seat, NULL);
1771 else if (autologin_username != NULL)
1772 session = create_user_session (seat, autologin_username, TRUE);
1775 session_set_pam_service (session, seat_get_string_property (seat, "pam-autologin-service"));
1777 /* Load in background if required */
1778 if (autologin_in_background && session)
1780 background_session = session;
1786 DisplayServer *display_server;
1788 g_clear_object (&seat->priv->session_to_activate);
1789 seat->priv->session_to_activate = g_object_ref (session);
1791 display_server = create_display_server (seat, session);
1792 session_set_display_server (session, display_server);
1793 if (!display_server || !start_display_server (seat, display_server))
1795 l_debug (seat, "Can't create display server for automatic login");
1796 session_stop (session);
1798 display_server_stop (display_server);
1804 /* Fallback to a greeter */
1807 GreeterSession *greeter_session;
1808 DisplayServer *display_server;
1810 greeter_session = create_greeter_session (seat);
1811 if (!greeter_session)
1813 l_debug (seat, "Failed to create greeter session");
1817 g_clear_object (&seat->priv->session_to_activate);
1818 seat->priv->session_to_activate = g_object_ref (greeter_session);
1819 session = SESSION (greeter_session);
1821 display_server = create_display_server (seat, session);
1822 session_set_display_server (session, display_server);
1823 if (!display_server || !start_display_server (seat, display_server))
1825 l_debug (seat, "Can't create display server for greeter");
1826 session_stop (session);
1828 display_server_stop (display_server);
1833 /* Fail if can't start a session */
1840 /* Start background session */
1841 if (background_session)
1843 DisplayServer *background_display_server;
1845 background_display_server = create_display_server (seat, background_session);
1846 session_set_display_server (background_session, background_display_server);
1847 if (!start_display_server (seat, background_display_server))
1848 l_warning (seat, "Failed to start display server for background session");
1854 static DisplayServer *
1855 seat_real_create_display_server (Seat *seat, Session *session)
1861 seat_real_display_server_is_used (Seat *seat, DisplayServer *display_server)
1865 for (link = seat->priv->sessions; link; link = link->next)
1867 Session *session = link->data;
1870 d = session_get_display_server (session);
1874 if (d == display_server || display_server_get_parent (d) == display_server)
1881 static GreeterSession *
1882 seat_real_create_greeter_session (Seat *seat)
1884 return greeter_session_new ();
1888 create_session_cb (Greeter *greeter, Seat *seat)
1890 return create_session (seat, FALSE);
1894 create_greeter_cb (Session *session, Seat *seat)
1898 greeter = greeter_new ();
1899 greeter_set_pam_services (greeter,
1900 seat_get_string_property (seat, "pam-service"),
1901 seat_get_string_property (seat, "pam-autologin-service"));
1902 g_signal_connect (greeter, GREETER_SIGNAL_CREATE_SESSION, G_CALLBACK (create_session_cb), seat);
1903 g_signal_connect (greeter, GREETER_SIGNAL_START_SESSION, G_CALLBACK (greeter_start_session_cb), seat);
1909 seat_real_create_session (Seat *seat)
1913 session = session_new ();
1914 g_signal_connect (session, SESSION_SIGNAL_CREATE_GREETER, G_CALLBACK (create_greeter_cb), seat);
1920 seat_real_set_active_session (Seat *seat, Session *session)
1925 seat_real_set_next_session (Seat *seat, Session *session)
1930 seat_real_get_active_session (Seat *seat)
1936 seat_real_stop (Seat *seat)
1940 check_stopped (seat);
1941 if (seat->priv->stopped)
1944 /* Stop all the display servers and sessions on the seat. Copy the list as
1945 * it might be modified if a display server / session stops during this loop */
1946 list = g_list_copy (seat->priv->display_servers);
1947 for (link = list; link; link = link->next)
1948 g_object_ref (link->data);
1949 for (link = list; link; link = link->next)
1951 DisplayServer *display_server = link->data;
1952 if (!display_server_get_is_stopping (display_server))
1954 l_debug (seat, "Stopping display server");
1955 display_server_stop (display_server);
1958 g_list_free_full (list, g_object_unref);
1959 list = g_list_copy (seat->priv->sessions);
1960 for (link = list; link; link = link->next)
1961 g_object_ref (link->data);
1962 for (link = list; link; link = link->next)
1964 Session *session = link->data;
1965 if (!session_get_is_stopping (session))
1967 l_debug (seat, "Stopping session");
1968 session_stop (session);
1971 g_list_free_full (list, g_object_unref);
1975 seat_init (Seat *seat)
1977 seat->priv = G_TYPE_INSTANCE_GET_PRIVATE (seat, SEAT_TYPE, SeatPrivate);
1978 seat->priv->properties = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1979 seat->priv->share_display_server = TRUE;
1983 seat_finalize (GObject *object)
1985 Seat *self = SEAT (object);
1988 g_free (self->priv->name);
1989 g_hash_table_unref (self->priv->properties);
1990 for (link = self->priv->display_servers; link; link = link->next)
1992 DisplayServer *display_server = link->data;
1993 g_signal_handlers_disconnect_matched (display_server, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
1995 g_list_free_full (self->priv->display_servers, g_object_unref);
1996 for (link = self->priv->sessions; link; link = link->next)
1998 Session *session = link->data;
1999 g_signal_handlers_disconnect_matched (session, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
2001 g_list_free_full (self->priv->sessions, g_object_unref);
2002 g_clear_object (&self->priv->active_session);
2003 g_clear_object (&self->priv->next_session);
2004 g_clear_object (&self->priv->session_to_activate);
2005 g_clear_object (&self->priv->replacement_greeter);
2007 G_OBJECT_CLASS (seat_parent_class)->finalize (object);
2011 seat_class_init (SeatClass *klass)
2013 GObjectClass *object_class = G_OBJECT_CLASS (klass);
2015 klass->setup = seat_real_setup;
2016 klass->start = seat_real_start;
2017 klass->create_display_server = seat_real_create_display_server;
2018 klass->display_server_is_used = seat_real_display_server_is_used;
2019 klass->create_greeter_session = seat_real_create_greeter_session;
2020 klass->create_session = seat_real_create_session;
2021 klass->set_active_session = seat_real_set_active_session;
2022 klass->get_active_session = seat_real_get_active_session;
2023 klass->set_next_session = seat_real_set_next_session;
2024 klass->run_script = seat_real_run_script;
2025 klass->stop = seat_real_stop;
2027 object_class->finalize = seat_finalize;
2029 g_type_class_add_private (klass, sizeof (SeatPrivate));
2031 signals[SESSION_ADDED] =
2032 g_signal_new (SEAT_SIGNAL_SESSION_ADDED,
2033 G_TYPE_FROM_CLASS (klass),
2035 G_STRUCT_OFFSET (SeatClass, session_added),
2038 G_TYPE_NONE, 1, SESSION_TYPE);
2039 signals[RUNNING_USER_SESSION] =
2040 g_signal_new (SEAT_SIGNAL_RUNNING_USER_SESSION,
2041 G_TYPE_FROM_CLASS (klass),
2043 G_STRUCT_OFFSET (SeatClass, running_user_session),
2046 G_TYPE_NONE, 1, SESSION_TYPE);
2047 signals[SESSION_REMOVED] =
2048 g_signal_new (SEAT_SIGNAL_SESSION_REMOVED,
2049 G_TYPE_FROM_CLASS (klass),
2051 G_STRUCT_OFFSET (SeatClass, session_removed),
2054 G_TYPE_NONE, 1, SESSION_TYPE);
2056 g_signal_new (SEAT_SIGNAL_STOPPED,
2057 G_TYPE_FROM_CLASS (klass),
2059 G_STRUCT_OFFSET (SeatClass, stopped),
2066 seat_real_logprefix (Logger *self, gchar *buf, gulong buflen)
2068 return g_snprintf (buf, buflen, "Seat %s: ", SEAT (self)->priv->name);
2072 seat_logger_iface_init (LoggerInterface *iface)
2074 iface->logprefix = &seat_real_logprefix;