diff options
Diffstat (limited to 'daemon/gdm-display.c')
| -rw-r--r-- | daemon/gdm-display.c | 307 |
1 files changed, 297 insertions, 10 deletions
diff --git a/daemon/gdm-display.c b/daemon/gdm-display.c index 97f0e7da..77302f65 100644 --- a/daemon/gdm-display.c +++ b/daemon/gdm-display.c @@ -42,9 +42,14 @@ #include "gdm-settings-direct.h" #include "gdm-settings-keys.h" +#include "gdm-launch-environment.h" #include "gdm-simple-slave.h" +#include "gdm-xdmcp-chooser-slave.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 @@ -83,6 +88,7 @@ struct GdmDisplayPrivate guint is_initial : 1; guint allow_timed_login : 1; guint have_existing_user_accounts : 1; + guint doing_initial_setup : 1; }; enum { @@ -101,7 +107,8 @@ enum { PROP_LAUNCH_ENVIRONMENT, PROP_IS_INITIAL, PROP_ALLOW_TIMED_LOGIN, - PROP_HAVE_EXISTING_USER_ACCOUNTS + PROP_HAVE_EXISTING_USER_ACCOUNTS, + PROP_DOING_INITIAL_SETUP, }; static void gdm_display_class_init (GdmDisplayClass *klass); @@ -110,9 +117,79 @@ static void gdm_display_finalize (GObject *object); static void queue_finish (GdmDisplay *self); static void _gdm_display_set_status (GdmDisplay *self, int status); - 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) { @@ -523,11 +600,6 @@ gdm_display_real_prepare (GdmDisplay *self) G_CALLBACK (on_slave_stopped), self, 0); - g_object_bind_property (G_OBJECT (self->priv->slave), - "session-id", - G_OBJECT (self), - "session-id", - G_BINDING_DEFAULT); return TRUE; } @@ -796,6 +868,12 @@ _gdm_display_set_launch_environment (GdmDisplay *self, g_clear_object (&self->priv->launch_environment); self->priv->launch_environment = g_object_ref (launch_environment); + + g_object_bind_property (launch_environment, + "session-id", + self, + "session-id", + G_BINDING_SYNC_CREATE); } static void @@ -922,6 +1000,9 @@ gdm_display_get_property (GObject *object, case PROP_HAVE_EXISTING_USER_ACCOUNTS: g_value_set_boolean (value, self->priv->have_existing_user_accounts); break; + case PROP_DOING_INITIAL_SETUP: + g_value_set_boolean (value, self->priv->doing_initial_setup); + break; case PROP_ALLOW_TIMED_LOGIN: g_value_set_boolean (value, self->priv->allow_timed_login); break; @@ -1337,6 +1418,13 @@ gdm_display_class_init (GdmDisplayClass *klass) FALSE, G_PARAM_READABLE)); g_object_class_install_property (object_class, + PROP_DOING_INITIAL_SETUP, + g_param_spec_boolean ("doing-initial-setup", + NULL, + NULL, + FALSE, + G_PARAM_READABLE)); + g_object_class_install_property (object_class, PROP_LAUNCH_ENVIRONMENT, g_param_spec_object ("launch-environment", NULL, @@ -1418,23 +1506,222 @@ gdm_display_get_object_skeleton (GdmDisplay *self) return self->priv->object_skeleton; } +static void +on_launch_environment_session_opened (GdmLaunchEnvironment *launch_environment, + GdmDisplay *self) +{ + char *session_id; + + g_debug ("GdmDisplay: Greeter session opened"); + session_id = gdm_launch_environment_get_session_id (launch_environment); + + g_object_set (GDM_SLAVE (self), "session-id", session_id, NULL); + g_free (session_id); +} + +static void +on_launch_environment_session_started (GdmLaunchEnvironment *launch_environment, + GdmDisplay *self) +{ + g_debug ("GdmDisplay: Greeter started"); +} + +static void +on_launch_environment_session_stopped (GdmLaunchEnvironment *launch_environment, + GdmDisplay *self) +{ + g_debug ("GdmDisplay: Greeter stopped"); + gdm_slave_stop (self->priv->slave); + + g_clear_object (&self->priv->launch_environment); +} + +static void +on_launch_environment_session_exited (GdmLaunchEnvironment *launch_environment, + int code, + GdmDisplay *self) +{ + g_debug ("GdmDisplay: Greeter exited: %d", code); + gdm_slave_stop (self->priv->slave); +} + +static void +on_launch_environment_session_died (GdmLaunchEnvironment *launch_environment, + int signal, + GdmDisplay *self) +{ + g_debug ("GdmDisplay: Greeter died: %d", signal); + gdm_slave_stop (self->priv->slave); +} + +static gboolean +can_create_environment (const char *session_id) +{ + char *path; + gboolean session_exists; + + path = g_strdup_printf (GNOME_SESSION_SESSIONS_PATH "/%s.session", session_id); + session_exists = g_file_test (path, G_FILE_TEST_EXISTS); + + g_free (path); + + return session_exists; +} + +static gboolean +wants_initial_setup (GdmDisplay *self) +{ + gboolean enabled = FALSE; + + /* don't run initial-setup on remote displays + */ + if (!self->priv->is_local) { + return FALSE; + } + + /* don't run if the system has existing users */ + if (self->priv->have_existing_user_accounts) { + return FALSE; + } + + /* don't run if initial-setup is unavailable */ + if (!can_create_environment ("gnome-initial-setup")) { + return FALSE; + } + + if (!gdm_settings_direct_get_boolean (GDM_KEY_INITIAL_SETUP_ENABLE, &enabled)) { + return FALSE; + } + + return enabled; +} + void gdm_display_set_up_greeter_session (GdmDisplay *self, char **username) { - gdm_slave_set_up_greeter_session (self->priv->slave, username); + self->priv->doing_initial_setup = wants_initial_setup (self); + + if (self->priv->doing_initial_setup) { + *username = g_strdup (INITIAL_SETUP_USERNAME); + } else { + *username = g_strdup (GDM_USERNAME); + } } void gdm_display_start_greeter_session (GdmDisplay *self) { - gdm_slave_start_greeter_session (self->priv->slave); + char *display_name; + char *seat_id; + char *hostname; + char *auth_file; + + g_debug ("GdmDisplay: Running greeter"); + + display_name = NULL; + seat_id = NULL; + hostname = NULL; + + g_object_get (self, + "x11-display-name", &display_name, + "seat-id", &seat_id, + "remote-hostname", &hostname, + NULL); + auth_file = gdm_display_access_file_get_path (self->priv->access_file); + + g_debug ("GdmDisplay: Creating greeter for %s %s", display_name, hostname); + + g_signal_connect (self->priv->launch_environment, + "opened", + G_CALLBACK (on_launch_environment_session_opened), + self); + g_signal_connect (self->priv->launch_environment, + "started", + G_CALLBACK (on_launch_environment_session_started), + self); + g_signal_connect (self->priv->launch_environment, + "stopped", + G_CALLBACK (on_launch_environment_session_stopped), + self); + g_signal_connect (self->priv->launch_environment, + "exited", + G_CALLBACK (on_launch_environment_session_exited), + self); + g_signal_connect (self->priv->launch_environment, + "died", + G_CALLBACK (on_launch_environment_session_died), + self); + + g_object_set (self->priv->launch_environment, + "x11-authority-file", auth_file, + NULL); + + gdm_launch_environment_start (self->priv->launch_environment); + + 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) { - gdm_slave_stop_greeter_session (self->priv->slave); + if (self->priv->launch_environment != NULL) { + 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 (); + } } GdmSlave * |