From c08afca0807d8820030c19a40e7590f72878c788 Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Thu, 6 Sep 2018 19:31:50 -0400
Subject: [PATCH 39/51] manager: do initial-setup post work in manager code
Right now we do the initial-setup related post work
when stopping the greeter, but the problem is we delay
stopping the greeter now until after the user session
is started.
That post-work needs to be done before the user session
is started.
This commit moves the code to a more logical place.
---
daemon/gdm-display.c | 132 -------------------------------------------
daemon/gdm-manager.c | 132 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 132 insertions(+), 132 deletions(-)
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c
index 875534272..1cef8c7c1 100644
--- a/daemon/gdm-display.c
+++ b/daemon/gdm-display.c
@@ -22,61 +22,60 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>
#include <xcb/xcb.h>
#include <X11/Xlib.h>
#include "gdm-common.h"
#include "gdm-display.h"
#include "gdm-display-glue.h"
#include "gdm-display-access-file.h"
#include "gdm-launch-environment.h"
#include "gdm-settings-direct.h"
#include "gdm-settings-keys.h"
#include "gdm-launch-environment.h"
#include "gdm-dbus-util.h"
-#define INITIAL_SETUP_USERNAME "gnome-initial-setup"
#define GNOME_SESSION_SESSIONS_PATH DATADIR "/gnome-session/sessions"
#define GDM_DISPLAY_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_DISPLAY, GdmDisplayPrivate))
struct GdmDisplayPrivate
{
char *id;
char *seat_id;
char *session_id;
char *session_class;
char *session_type;
char *remote_hostname;
int x11_display_number;
char *x11_display_name;
int status;
time_t creation_time;
GTimer *server_timer;
char *x11_cookie;
gsize x11_cookie_size;
GdmDisplayAccessFile *access_file;
guint finish_idle_id;
xcb_connection_t *xcb_connection;
int xcb_screen_number;
GDBusConnection *connection;
GdmDisplayAccessFile *user_access_file;
@@ -98,131 +97,60 @@ enum {
PROP_0,
PROP_ID,
PROP_STATUS,
PROP_SEAT_ID,
PROP_SESSION_ID,
PROP_SESSION_CLASS,
PROP_SESSION_TYPE,
PROP_REMOTE_HOSTNAME,
PROP_X11_DISPLAY_NUMBER,
PROP_X11_DISPLAY_NAME,
PROP_X11_COOKIE,
PROP_X11_AUTHORITY_FILE,
PROP_IS_CONNECTED,
PROP_IS_LOCAL,
PROP_LAUNCH_ENVIRONMENT,
PROP_IS_INITIAL,
PROP_ALLOW_TIMED_LOGIN,
PROP_HAVE_EXISTING_USER_ACCOUNTS,
PROP_DOING_INITIAL_SETUP,
};
static void gdm_display_class_init (GdmDisplayClass *klass);
static void gdm_display_init (GdmDisplay *self);
static void gdm_display_finalize (GObject *object);
static void queue_finish (GdmDisplay *self);
static void _gdm_display_set_status (GdmDisplay *self,
int status);
static gboolean wants_initial_setup (GdmDisplay *self);
G_DEFINE_ABSTRACT_TYPE (GdmDisplay, gdm_display, G_TYPE_OBJECT)
-static gboolean
-chown_file (GFile *file,
- uid_t uid,
- gid_t gid,
- GError **error)
-{
- if (!g_file_set_attribute_uint32 (file, G_FILE_ATTRIBUTE_UNIX_UID, uid,
- G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
- NULL, error)) {
- return FALSE;
- }
- if (!g_file_set_attribute_uint32 (file, G_FILE_ATTRIBUTE_UNIX_GID, gid,
- G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
- NULL, error)) {
- return FALSE;
- }
- return TRUE;
-}
-
-static gboolean
-chown_recursively (GFile *dir,
- uid_t uid,
- gid_t gid,
- GError **error)
-{
- GFile *file = NULL;
- GFileInfo *info = NULL;
- GFileEnumerator *enumerator = NULL;
- gboolean retval = FALSE;
-
- if (chown_file (dir, uid, gid, error) == FALSE) {
- goto out;
- }
-
- enumerator = g_file_enumerate_children (dir,
- G_FILE_ATTRIBUTE_STANDARD_TYPE","
- G_FILE_ATTRIBUTE_STANDARD_NAME,
- G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
- NULL, error);
- if (!enumerator) {
- goto out;
- }
-
- while ((info = g_file_enumerator_next_file (enumerator, NULL, error)) != NULL) {
- file = g_file_get_child (dir, g_file_info_get_name (info));
-
- if (g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY) {
- if (chown_recursively (file, uid, gid, error) == FALSE) {
- goto out;
- }
- } else if (chown_file (file, uid, gid, error) == FALSE) {
- goto out;
- }
-
- g_clear_object (&file);
- g_clear_object (&info);
- }
-
- if (*error) {
- goto out;
- }
-
- retval = TRUE;
-out:
- g_clear_object (&file);
- g_clear_object (&info);
- g_clear_object (&enumerator);
-
- return retval;
-}
-
GQuark
gdm_display_error_quark (void)
{
static GQuark ret = 0;
if (ret == 0) {
ret = g_quark_from_static_string ("gdm_display_error");
}
return ret;
}
time_t
gdm_display_get_creation_time (GdmDisplay *self)
{
g_return_val_if_fail (GDM_IS_DISPLAY (self), 0);
return self->priv->creation_time;
}
int
gdm_display_get_status (GdmDisplay *self)
{
g_return_val_if_fail (GDM_IS_DISPLAY (self), 0);
return self->priv->status;
}
const char *
gdm_display_get_session_id (GdmDisplay *self)
{
@@ -1649,145 +1577,85 @@ gdm_display_start_greeter_session (GdmDisplay *self)
G_CALLBACK (on_launch_environment_session_stopped),
self, 0);
g_signal_connect_object (self->priv->launch_environment,
"exited",
G_CALLBACK (on_launch_environment_session_exited),
self, 0);
g_signal_connect_object (self->priv->launch_environment,
"died",
G_CALLBACK (on_launch_environment_session_died),
self, 0);
if (auth_file != NULL) {
g_object_set (self->priv->launch_environment,
"x11-authority-file", auth_file,
NULL);
}
gdm_launch_environment_start (self->priv->launch_environment);
session = gdm_launch_environment_get_session (self->priv->launch_environment);
g_object_set (G_OBJECT (session),
"display-is-initial", self->priv->is_initial,
NULL);
g_free (display_name);
g_free (seat_id);
g_free (hostname);
g_free (auth_file);
}
-static void
-chown_initial_setup_home_dir (void)
-{
- GFile *dir;
- GError *error;
- char *gis_dir_path;
- char *gis_uid_path;
- char *gis_uid_contents;
- struct passwd *pwe;
- uid_t uid;
-
- if (!gdm_get_pwent_for_name (INITIAL_SETUP_USERNAME, &pwe)) {
- g_warning ("Unknown user %s", INITIAL_SETUP_USERNAME);
- return;
- }
-
- gis_dir_path = g_strdup (pwe->pw_dir);
-
- gis_uid_path = g_build_filename (gis_dir_path,
- "gnome-initial-setup-uid",
- NULL);
- if (!g_file_get_contents (gis_uid_path, &gis_uid_contents, NULL, NULL)) {
- g_warning ("Unable to read %s", gis_uid_path);
- goto out;
- }
-
- uid = (uid_t) atoi (gis_uid_contents);
- pwe = getpwuid (uid);
- if (uid == 0 || pwe == NULL) {
- g_warning ("UID '%s' in %s is not valid", gis_uid_contents, gis_uid_path);
- goto out;
- }
-
- error = NULL;
- dir = g_file_new_for_path (gis_dir_path);
- if (!chown_recursively (dir, pwe->pw_uid, pwe->pw_gid, &error)) {
- g_warning ("Failed to change ownership for %s: %s", gis_dir_path, error->message);
- g_error_free (error);
- }
- g_object_unref (dir);
-out:
- g_free (gis_uid_contents);
- g_free (gis_uid_path);
- g_free (gis_dir_path);
-}
-
void
gdm_display_stop_greeter_session (GdmDisplay *self)
{
GError *error = NULL;
if (self->priv->launch_environment != NULL) {
g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
G_CALLBACK (on_launch_environment_session_opened),
self);
g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
G_CALLBACK (on_launch_environment_session_started),
self);
g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
G_CALLBACK (on_launch_environment_session_stopped),
self);
g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
G_CALLBACK (on_launch_environment_session_exited),
self);
g_signal_handlers_disconnect_by_func (self->priv->launch_environment,
G_CALLBACK (on_launch_environment_session_died),
self);
gdm_launch_environment_stop (self->priv->launch_environment);
g_clear_object (&self->priv->launch_environment);
}
-
- if (self->priv->doing_initial_setup) {
- chown_initial_setup_home_dir ();
-
- if (!g_file_set_contents (ALREADY_RAN_INITIAL_SETUP_ON_THIS_BOOT,
- "1",
- 1,
- &error)) {
- g_warning ("GdmDisplay: Could not write initial-setup-done marker to %s: %s",
- ALREADY_RAN_INITIAL_SETUP_ON_THIS_BOOT,
- error->message);
- g_clear_error (&error);
- }
- }
}
static xcb_window_t
get_root_window (xcb_connection_t *connection,
int screen_number)
{
xcb_screen_t *screen = NULL;
xcb_screen_iterator_t iter;
iter = xcb_setup_roots_iterator (xcb_get_setup (connection));
while (iter.rem) {
if (screen_number == 0)
screen = iter.data;
screen_number--;
xcb_screen_next (&iter);
}
if (screen != NULL) {
return screen->root;
}
return XCB_WINDOW_NONE;
}
static void
gdm_display_set_windowpath (GdmDisplay *self)
{
/* setting WINDOWPATH for clients */
xcb_intern_atom_cookie_t atom_cookie;
xcb_intern_atom_reply_t *atom_reply = NULL;
diff --git a/daemon/gdm-manager.c b/daemon/gdm-manager.c
index 0823e8638..cf982870c 100644
--- a/daemon/gdm-manager.c
+++ b/daemon/gdm-manager.c
@@ -35,60 +35,61 @@
#include <glib-object.h>
#include <act/act-user-manager.h>
#include <systemd/sd-login.h>
#include "gdm-common.h"
#include "gdm-dbus-util.h"
#include "gdm-manager.h"
#include "gdm-manager-glue.h"
#include "gdm-display-store.h"
#include "gdm-display-factory.h"
#include "gdm-launch-environment.h"
#include "gdm-local-display.h"
#include "gdm-local-display-factory.h"
#include "gdm-session.h"
#include "gdm-session-record.h"
#include "gdm-settings-direct.h"
#include "gdm-settings-keys.h"
#include "gdm-xdmcp-display-factory.h"
#include "gdm-xdmcp-chooser-display.h"
#define GDM_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_MANAGER, GdmManagerPrivate))
#define GDM_DBUS_PATH "/org/gnome/DisplayManager"
#define GDM_MANAGER_PATH GDM_DBUS_PATH "/Manager"
#define GDM_MANAGER_DISPLAYS_PATH GDM_DBUS_PATH "/Displays"
#define INITIAL_SETUP_USERNAME "gnome-initial-setup"
+#define ALREADY_RAN_INITIAL_SETUP_ON_THIS_BOOT GDM_RUN_DIR "/gdm.ran-initial-setup"
typedef struct
{
GdmManager *manager;
GdmSession *session;
char *service_name;
guint idle_id;
} StartUserSessionOperation;
struct GdmManagerPrivate
{
GdmDisplayStore *display_store;
GdmLocalDisplayFactory *local_factory;
#ifdef HAVE_LIBXDMCP
GdmXdmcpDisplayFactory *xdmcp_factory;
#endif
GdmDisplay *automatic_login_display;
GList *user_sessions;
GHashTable *transient_sessions;
GHashTable *open_reauthentication_requests;
gboolean xdmcp_enabled;
gboolean started;
gboolean show_local_greeter;
GDBusConnection *connection;
GDBusObjectManagerServer *object_manager;
#ifdef WITH_PLYMOUTH
guint plymouth_is_running : 1;
@@ -1630,130 +1631,261 @@ start_user_session (GdmManager *manager,
destroy_start_user_session_operation (operation);
}
static void
create_display_for_user_session (GdmManager *self,
GdmSession *session,
const char *session_id)
{
GdmDisplay *display;
/* at the moment we only create GdmLocalDisplay objects on seat0 */
const char *seat_id = "seat0";
display = gdm_local_display_new ();
g_object_set (G_OBJECT (display),
"session-class", "user",
"seat-id", seat_id,
"session-id", session_id,
NULL);
gdm_display_store_add (self->priv->display_store,
display);
g_object_set_data (G_OBJECT (session), "gdm-display", display);
g_object_set_data_full (G_OBJECT (display),
"gdm-user-session",
g_object_ref (session),
(GDestroyNotify)
clean_user_session);
}
+static gboolean
+chown_file (GFile *file,
+ uid_t uid,
+ gid_t gid,
+ GError **error)
+{
+ if (!g_file_set_attribute_uint32 (file, G_FILE_ATTRIBUTE_UNIX_UID, uid,
+ G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+ NULL, error)) {
+ return FALSE;
+ }
+ if (!g_file_set_attribute_uint32 (file, G_FILE_ATTRIBUTE_UNIX_GID, gid,
+ G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+ NULL, error)) {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static gboolean
+chown_recursively (GFile *dir,
+ uid_t uid,
+ gid_t gid,
+ GError **error)
+{
+ GFile *file = NULL;
+ GFileInfo *info = NULL;
+ GFileEnumerator *enumerator = NULL;
+ gboolean retval = FALSE;
+
+ if (chown_file (dir, uid, gid, error) == FALSE) {
+ goto out;
+ }
+
+ enumerator = g_file_enumerate_children (dir,
+ G_FILE_ATTRIBUTE_STANDARD_TYPE","
+ G_FILE_ATTRIBUTE_STANDARD_NAME,
+ G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+ NULL, error);
+ if (!enumerator) {
+ goto out;
+ }
+
+ while ((info = g_file_enumerator_next_file (enumerator, NULL, error)) != NULL) {
+ file = g_file_get_child (dir, g_file_info_get_name (info));
+
+ if (g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY) {
+ if (chown_recursively (file, uid, gid, error) == FALSE) {
+ goto out;
+ }
+ } else if (chown_file (file, uid, gid, error) == FALSE) {
+ goto out;
+ }
+
+ g_clear_object (&file);
+ g_clear_object (&info);
+ }
+
+ if (*error) {
+ goto out;
+ }
+
+ retval = TRUE;
+out:
+ g_clear_object (&file);
+ g_clear_object (&info);
+ g_clear_object (&enumerator);
+
+ return retval;
+}
+
+static void
+chown_initial_setup_home_dir (void)
+{
+ GFile *dir;
+ GError *error;
+ char *gis_dir_path;
+ char *gis_uid_path;
+ char *gis_uid_contents;
+ struct passwd *pwe;
+ uid_t uid;
+
+ if (!gdm_get_pwent_for_name (INITIAL_SETUP_USERNAME, &pwe)) {
+ g_warning ("Unknown user %s", INITIAL_SETUP_USERNAME);
+ return;
+ }
+
+ gis_dir_path = g_strdup (pwe->pw_dir);
+
+ gis_uid_path = g_build_filename (gis_dir_path,
+ "gnome-initial-setup-uid",
+ NULL);
+ if (!g_file_get_contents (gis_uid_path, &gis_uid_contents, NULL, NULL)) {
+ g_warning ("Unable to read %s", gis_uid_path);
+ goto out;
+ }
+
+ uid = (uid_t) atoi (gis_uid_contents);
+ pwe = getpwuid (uid);
+ if (uid == 0 || pwe == NULL) {
+ g_warning ("UID '%s' in %s is not valid", gis_uid_contents, gis_uid_path);
+ goto out;
+ }
+
+ error = NULL;
+ dir = g_file_new_for_path (gis_dir_path);
+ if (!chown_recursively (dir, pwe->pw_uid, pwe->pw_gid, &error)) {
+ g_warning ("Failed to change ownership for %s: %s", gis_dir_path, error->message);
+ g_error_free (error);
+ }
+ g_object_unref (dir);
+out:
+ g_free (gis_uid_contents);
+ g_free (gis_uid_path);
+ g_free (gis_dir_path);
+}
+
static gboolean
on_start_user_session (StartUserSessionOperation *operation)
{
GdmManager *self = operation->manager;
gboolean migrated;
gboolean fail_if_already_switched = TRUE;
gboolean doing_initial_setup = FALSE;
GdmDisplay *display;
const char *session_id;
#if defined(ENABLE_WAYLAND_SUPPORT) && defined(ENABLE_USER_DISPLAY_SERVER)
g_autofree char *display_session_type = NULL;
#endif
g_debug ("GdmManager: start or jump to session");
/* If there's already a session running, jump to it.
* If the only session running is the one we just opened,
* start a session on it.
*/
migrated = switch_to_compatible_user_session (operation->manager, operation->session, fail_if_already_switched);
g_debug ("GdmManager: migrated: %d", migrated);
if (migrated) {
/* We don't stop the manager here because
when Xorg exits it switches to the VT it was
started from. That interferes with fast
user switching. */
gdm_session_reset (operation->session);
destroy_start_user_session_operation (operation);
goto out;
}
display = get_display_for_user_session (operation->session);
g_object_get (G_OBJECT (display),
"doing-initial-setup", &doing_initial_setup,
#if defined(ENABLE_WAYLAND_SUPPORT) && defined(ENABLE_USER_DISPLAY_SERVER)
"session-type", &display_session_type,
#endif
NULL);
session_id = gdm_session_get_conversation_session_id (operation->session,
operation->service_name);
if (gdm_session_get_display_mode (operation->session) == GDM_SESSION_DISPLAY_MODE_REUSE_VT) {
/* In this case, the greeter's display is morphing into
* the user session display. Kill the greeter on this session
* and let the user session follow the same display. */
gdm_display_stop_greeter_session (display);
g_object_set (G_OBJECT (display),
"session-class", "user",
"session-id", session_id,
NULL);
} else {
uid_t allowed_uid;
g_object_ref (display);
if (doing_initial_setup) {
+ g_autoptr(GError) error = NULL;
+
#if defined(ENABLE_WAYLAND_SUPPORT) && defined(ENABLE_USER_DISPLAY_SERVER)
if (g_strcmp0 (display_session_type, "wayland") == 0) {
g_debug ("GdmManager: closing down initial setup display in background");
g_object_set (G_OBJECT (display), "status", GDM_DISPLAY_WAITING_TO_FINISH, NULL);
}
#endif
if (gdm_display_get_status (display) == GDM_DISPLAY_MANAGED) {
g_debug ("GdmManager: closing down initial setup display");
gdm_display_stop_greeter_session (display);
gdm_display_unmanage (display);
gdm_display_finish (display);
}
+
+ chown_initial_setup_home_dir ();
+
+ if (!g_file_set_contents (ALREADY_RAN_INITIAL_SETUP_ON_THIS_BOOT,
+ "1",
+ 1,
+ &error)) {
+ g_warning ("GdmDisplay: Could not write initial-setup-done marker to %s: %s",
+ ALREADY_RAN_INITIAL_SETUP_ON_THIS_BOOT,
+ error->message);
+ g_clear_error (&error);
+ }
} else {
g_debug ("GdmManager: session has its display server, reusing our server for another login screen");
}
/* The user session is going to follow the session worker
* into the new display. Untie it from this display and
* create a new session for a future user login. */
allowed_uid = gdm_session_get_allowed_user (operation->session);
g_object_set_data (G_OBJECT (display), "gdm-user-session", NULL);
g_object_set_data (G_OBJECT (operation->session), "gdm-display", NULL);
create_user_session_for_display (operation->manager, display, allowed_uid);
/* Give the user session a new display object for bookkeeping purposes */
create_display_for_user_session (operation->manager,
operation->session,
session_id);
if ((g_strcmp0 (operation->service_name, "gdm-autologin") == 0) &&
!gdm_session_client_is_connected (operation->session)) {
/* remove the unused prepared greeter display since we're not going
* to have a greeter */
gdm_display_store_remove (self->priv->display_store, display);
g_object_unref (display);
self->priv->automatic_login_display = g_object_get_data (G_OBJECT (operation->session), "gdm-display");
g_object_add_weak_pointer (G_OBJECT (self->priv->automatic_login_display), (gpointer *) &self->priv->automatic_login_display);
}
}
start_user_session (operation->manager, operation);
--
2.27.0