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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <pwd.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>
#include "gdm-common.h"
#include "gdm-display.h"
#include "gdm-launch-environment.h"
#include "gdm-legacy-display.h"
#include "gdm-local-display-glue.h"
#include "gdm-server.h"
#include "gdm-settings-direct.h"
#include "gdm-settings-keys.h"
struct _GdmLegacyDisplay
{
GdmDisplay parent;
GdmDBusLocalDisplay *skeleton;
GdmServer *server;
};
static void gdm_legacy_display_class_init (GdmLegacyDisplayClass *klass);
static void gdm_legacy_display_init (GdmLegacyDisplay *legacy_display);
G_DEFINE_TYPE (GdmLegacyDisplay, gdm_legacy_display, GDM_TYPE_DISPLAY)
static GObject *
gdm_legacy_display_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties)
{
GdmLegacyDisplay *display;
display = GDM_LEGACY_DISPLAY (G_OBJECT_CLASS (gdm_legacy_display_parent_class)->constructor (type,
n_construct_properties,
construct_properties));
display->skeleton = GDM_DBUS_LOCAL_DISPLAY (gdm_dbus_local_display_skeleton_new ());
g_dbus_object_skeleton_add_interface (gdm_display_get_object_skeleton (GDM_DISPLAY (display)),
G_DBUS_INTERFACE_SKELETON (display->skeleton));
return G_OBJECT (display);
}
static void
gdm_legacy_display_finalize (GObject *object)
{
GdmLegacyDisplay *display = GDM_LEGACY_DISPLAY (object);
g_clear_object (&display->skeleton);
g_clear_object (&display->server);
G_OBJECT_CLASS (gdm_legacy_display_parent_class)->finalize (object);
}
static gboolean
gdm_legacy_display_prepare (GdmDisplay *display)
{
GdmLegacyDisplay *self = GDM_LEGACY_DISPLAY (display);
GdmLaunchEnvironment *launch_environment;
char *display_name;
char *seat_id;
gboolean doing_initial_setup = FALSE;
display_name = NULL;
seat_id = NULL;
g_object_get (self,
"x11-display-name", &display_name,
"seat-id", &seat_id,
"doing-initial-setup", &doing_initial_setup,
NULL);
if (!doing_initial_setup) {
launch_environment = gdm_create_greeter_launch_environment (display_name,
seat_id,
NULL,
NULL,
TRUE);
} else {
launch_environment = gdm_create_initial_setup_launch_environment (display_name,
seat_id,
NULL,
NULL,
TRUE);
}
g_object_set (self, "launch-environment", launch_environment, NULL);
g_object_unref (launch_environment);
if (!gdm_display_create_authority (display)) {
g_warning ("Unable to set up access control for display %s",
display_name);
return FALSE;
}
return GDM_DISPLAY_CLASS (gdm_legacy_display_parent_class)->prepare (display);
}
static void
on_server_ready (GdmServer *server,
GdmLegacyDisplay *self)
{
gboolean ret;
ret = gdm_display_connect (GDM_DISPLAY (self));
if (!ret) {
g_debug ("GdmDisplay: could not connect to display");
gdm_display_unmanage (GDM_DISPLAY (self));
} else {
GdmLaunchEnvironment *launch_environment;
char *display_device;
display_device = gdm_server_get_display_device (server);
g_object_get (G_OBJECT (self),
"launch-environment", &launch_environment,
NULL);
g_object_set (G_OBJECT (launch_environment),
"x11-display-device",
display_device,
NULL);
g_clear_pointer(&display_device, g_free);
g_clear_object (&launch_environment);
g_debug ("GdmDisplay: connected to display");
g_object_set (G_OBJECT (self), "status", GDM_DISPLAY_MANAGED, NULL);
}
}
static void
on_server_exited (GdmServer *server,
int exit_code,
GdmDisplay *self)
{
g_debug ("GdmDisplay: server exited with code %d\n", exit_code);
gdm_display_unmanage (GDM_DISPLAY (self));
}
static void
on_server_died (GdmServer *server,
int signal_number,
GdmDisplay *self)
{
g_debug ("GdmDisplay: server died with signal %d, (%s)",
signal_number,
g_strsignal (signal_number));
gdm_display_unmanage (GDM_DISPLAY (self));
}
static void
gdm_legacy_display_manage (GdmDisplay *display)
{
GdmLegacyDisplay *self = GDM_LEGACY_DISPLAY (display);
char *display_name;
char *auth_file;
char *seat_id;
gboolean is_initial;
gboolean res;
gboolean disable_tcp;
g_object_get (G_OBJECT (self),
"x11-display-name", &display_name,
"x11-authority-file", &auth_file,
"seat-id", &seat_id,
"is-initial", &is_initial,
NULL);
self->server = gdm_server_new (display_name, seat_id, auth_file, is_initial);
g_free (display_name);
g_free (auth_file);
g_free (seat_id);
disable_tcp = TRUE;
if (gdm_settings_direct_get_boolean (GDM_KEY_DISALLOW_TCP, &disable_tcp)) {
g_object_set (self->server,
"disable-tcp", disable_tcp,
NULL);
}
g_signal_connect (self->server,
"exited",
G_CALLBACK (on_server_exited),
self);
g_signal_connect (self->server,
"died",
G_CALLBACK (on_server_died),
self);
g_signal_connect (self->server,
"ready",
G_CALLBACK (on_server_ready),
self);
res = gdm_server_start (self->server);
if (! res) {
g_warning (_("Could not start the X "
"server (your graphical environment) "
"due to an internal error. "
"Please contact your system administrator "
"or check your syslog to diagnose. "
"In the meantime this display will be "
"disabled. Please restart GDM when "
"the problem is corrected."));
gdm_display_unmanage (GDM_DISPLAY (self));
}
g_debug ("GdmDisplay: Started X server");
}
static void
gdm_legacy_display_class_init (GdmLegacyDisplayClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdmDisplayClass *display_class = GDM_DISPLAY_CLASS (klass);
object_class->constructor = gdm_legacy_display_constructor;
object_class->finalize = gdm_legacy_display_finalize;
display_class->prepare = gdm_legacy_display_prepare;
display_class->manage = gdm_legacy_display_manage;
}
static void
on_display_status_changed (GdmLegacyDisplay *self)
{
int status;
status = gdm_display_get_status (GDM_DISPLAY (self));
switch (status) {
case GDM_DISPLAY_UNMANAGED:
if (self->server != NULL)
gdm_server_stop (self->server);
break;
default:
break;
}
}
static void
gdm_legacy_display_init (GdmLegacyDisplay *legacy_display)
{
g_signal_connect (legacy_display, "notify::status",
G_CALLBACK (on_display_status_changed),
NULL);
}
GdmDisplay *
gdm_legacy_display_new (int display_number)
{
GObject *object;
char *x11_display;
x11_display = g_strdup_printf (":%d", display_number);
object = g_object_new (GDM_TYPE_LEGACY_DISPLAY,
"x11-display-number", display_number,
"x11-display-name", x11_display,
NULL);
g_free (x11_display);
return GDM_DISPLAY (object);
}
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