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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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* Copyright (C) 2012 Red Hat, Inc.
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* Copyright (C) 2012 Giovanni Campagna <scampa.giovanni@gmail.com>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#include <glib/gi18n.h>
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#include <glib-object.h>
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#include <systemd/sd-daemon.h>
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#include <systemd/sd-login.h>
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#include "gdm-user-switching.h"
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#include "gdm-client.h"
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#ifdef WITH_CONSOLE_KIT
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#define CK_NAME "org.freedesktop.ConsoleKit"
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#define CK_PATH "/org/freedesktop/ConsoleKit"
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#define CK_INTERFACE "org.freedesktop.ConsoleKit"
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#define CK_MANAGER_PATH "/org/freedesktop/ConsoleKit/Manager"
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#define CK_MANAGER_INTERFACE "org.freedesktop.ConsoleKit.Manager"
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#define CK_SEAT_INTERFACE "org.freedesktop.ConsoleKit.Seat"
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#define CK_SESSION_INTERFACE "org.freedesktop.ConsoleKit.Session"
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create_transient_display (GDBusConnection *connection,
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GCancellable *cancellable,
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reply = g_dbus_connection_call_sync (connection,
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"org.gnome.DisplayManager",
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"/org/gnome/DisplayManager/LocalDisplayFactory",
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"org.gnome.DisplayManager.LocalDisplayFactory",
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"CreateTransientDisplay",
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NULL, /* parameters */
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G_VARIANT_TYPE ("(o)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_prefix_error (error, _("Unable to create transient display: "));
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g_variant_get (reply, "(&o)", &value);
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g_debug ("Started %s", value);
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g_variant_unref (reply);
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#ifdef WITH_CONSOLE_KIT
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get_current_session_id (GDBusConnection *connection,
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GError *local_error = NULL;
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reply = g_dbus_connection_call_sync (connection,
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NULL, /* parameters */
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G_VARIANT_TYPE ("(o)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("Unable to determine session: %s", local_error->message);
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g_error_free (local_error);
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g_variant_get (reply, "(o)", session_id);
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g_variant_unref (reply);
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get_seat_id_for_session (GDBusConnection *connection,
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const char *session_id,
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GError *local_error = NULL;
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reply = g_dbus_connection_call_sync (connection,
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CK_SESSION_INTERFACE,
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NULL, /* parameters */
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G_VARIANT_TYPE ("(o)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("Unable to determine seat: %s", local_error->message);
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g_error_free (local_error);
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g_variant_get (reply, "(o)", seat_id);
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g_variant_unref (reply);
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get_current_seat_id (GDBusConnection *connection)
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res = get_current_session_id (connection, &session_id);
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res = get_seat_id_for_session (connection, session_id, &seat_id);
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activate_session_id_for_ck (GDBusConnection *connection,
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GCancellable *cancellable,
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const char *session_id,
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reply = g_dbus_connection_call_sync (connection,
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g_variant_new ("(o)", session_id),
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G_DBUS_CALL_FLAGS_NONE,
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g_prefix_error (error, _("Unable to activate session: "));
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g_variant_unref (reply);
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session_is_login_window (GDBusConnection *connection,
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const char *session_id)
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GError *local_error = NULL;
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reply = g_dbus_connection_call_sync (connection,
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CK_SESSION_INTERFACE,
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G_VARIANT_TYPE ("(s)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("Unable to determine session type: %s", local_error->message);
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g_error_free (local_error);
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g_variant_get (reply, "(&s)", &value);
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if (value == NULL || value[0] == '\0' || strcmp (value, "LoginWindow") != 0) {
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g_variant_unref (reply);
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seat_can_activate_sessions (GDBusConnection *connection,
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GError *local_error = NULL;
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reply = g_dbus_connection_call_sync (connection,
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"CanActivateSessions",
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G_VARIANT_TYPE ("(b)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("Unable to determine if can activate sessions: %s", local_error->message);
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g_error_free (local_error);
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g_variant_get (reply, "(b)", &ret);
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g_variant_unref (reply);
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seat_get_sessions (GDBusConnection *connection,
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GError *local_error = NULL;
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reply = g_dbus_connection_call_sync (connection,
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G_VARIANT_TYPE ("(ao)"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("Unable to list sessions: %s", local_error->message);
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g_error_free (local_error);
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g_variant_get (reply, "(^ao)", &value);
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g_variant_unref (reply);
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get_login_window_session_id_for_ck (GDBusConnection *connection,
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gboolean can_activate_sessions;
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const char **sessions;
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g_debug ("checking if seat can activate sessions");
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can_activate_sessions = seat_can_activate_sessions (connection, seat_id);
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if (! can_activate_sessions) {
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g_debug ("seat is unable to activate sessions");
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sessions = seat_get_sessions (connection, seat_id);
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for (i = 0; sessions [i] != NULL; i++) {
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if (session_is_login_window (connection, ssid)) {
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*session_id = g_strdup (ssid);
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goto_login_session_for_ck (GDBusConnection *connection,
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GCancellable *cancellable,
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/* First look for any existing LoginWindow sessions on the seat.
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If none are found, create a new one. */
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seat_id = get_current_seat_id (connection);
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if (seat_id == NULL || seat_id[0] == '\0') {
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g_debug ("seat id is not set; can't switch sessions");
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("Could not identify the current session."));
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res = get_login_window_session_id_for_ck (connection, seat_id, &session_id);
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("User unable to switch sessions."));
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if (session_id != NULL) {
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res = activate_session_id_for_ck (connection, cancellable, seat_id, session_id, error);
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if (! ret && g_strcmp0 (seat_id, "/org/freedesktop/ConsoleKit/Seat1") == 0) {
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res = create_transient_display (connection, cancellable, error);
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activate_session_id_for_systemd (GDBusConnection *connection,
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GCancellable *cancellable,
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const char *session_id,
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reply = g_dbus_connection_call_sync (connection,
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"org.freedesktop.login1",
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"/org/freedesktop/login1",
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"org.freedesktop.login1.Manager",
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"ActivateSessionOnSeat",
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g_variant_new ("(ss)", session_id, seat_id),
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G_DBUS_CALL_FLAGS_NONE,
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g_prefix_error (error, _("Unable to activate session: "));
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g_variant_unref (reply);
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get_login_window_session_id_for_systemd (const char *seat_id,
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res = sd_seat_get_sessions (seat_id, &sessions, NULL, NULL);
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g_debug ("Failed to determine sessions: %s", strerror (-res));
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if (sessions == NULL || sessions[0] == NULL) {
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for (i = 0; sessions[i]; i ++) {
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res = sd_session_get_class (sessions[i], &service_class);
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g_debug ("failed to determine class of session %s: %s", sessions[i], strerror (-res));
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if (strcmp (service_class, "greeter") != 0) {
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free (service_class);
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free (service_class);
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ret = sd_session_get_state (sessions[i], &state);
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g_debug ("failed to determine state of session %s: %s", sessions[i], strerror (-res));
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if (g_strcmp0 (state, "closing") == 0) {
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res = sd_session_get_service (sessions[i], &service_id);
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g_debug ("failed to determine service of session %s: %s", sessions[i], strerror (-res));
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if (strcmp (service_id, "gdm-launch-environment") == 0) {
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*session_id = g_strdup (sessions[i]);
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for (i = 0; sessions[i]; i ++) {
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goto_login_session_for_systemd (GDBusConnection *connection,
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GCancellable *cancellable,
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/* First look for any existing LoginWindow sessions on the seat.
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If none are found, create a new one. */
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/* Note that we mostly use free () here, instead of g_free ()
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* since the data allocated is from libsystemd-logind, which
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* does not use GLib's g_malloc (). */
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res = sd_pid_get_session (0, &our_session);
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g_debug ("failed to determine own session: %s", strerror (-res));
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("Could not identify the current session."));
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res = sd_session_get_seat (our_session, &seat_id);
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g_debug ("failed to determine own seat: %s", strerror (-res));
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("Could not identify the current seat."));
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res = sd_seat_can_multi_session (seat_id);
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g_debug ("failed to determine whether seat can do multi session: %s", strerror (-res));
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("The system is unable to determine whether to switch to an existing login screen or start up a new login screen."));
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g_set_error (error, GDM_CLIENT_ERROR, 0, _("The system is unable to start up a new login screen."));
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res = get_login_window_session_id_for_systemd (seat_id, &session_id);
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if (res && session_id != NULL) {
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res = activate_session_id_for_systemd (connection, cancellable, seat_id, session_id, error);
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if (! ret && g_strcmp0 (seat_id, "seat0") == 0) {
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res = create_transient_display (connection, cancellable, error);
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gdm_goto_login_session_sync (GCancellable *cancellable,
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GDBusConnection *connection;
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connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, cancellable, error);
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if (sd_booted () > 0) {
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retval = goto_login_session_for_systemd (connection,
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g_object_unref (connection);
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#ifdef WITH_CONSOLE_KIT
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retval = goto_login_session_for_ck (connection, cancellable, error);
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g_object_unref (connection);
added
removed
.pc/00git_logind_check.patch/gui/libgdm/gdm-user-switching.c
