/* cc-firmware-security-panel.c
*
* Copyright (C) 2021 Red Hat, Inc
*
* 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, see .
*
* Author: Kate Hsuan
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "shell/cc-application.h"
#include "cc-firmware-security-panel.h"
#include "cc-firmware-security-resources.h"
#include "cc-firmware-security-dialog.h"
#include "cc-firmware-security-boot-dialog.h"
#include "cc-firmware-security-utils.h"
#include "cc-util.h"
#include
#include
struct _CcfirmwareSecurityPanel
{
CcPanel parent_instance;
GtkButton *hsi_button;
GtkButton *secure_boot_button;
/* HSI button */
GtkWidget *hsi_grid;
GtkWidget *hsi_circle_box;
GtkWidget *hsi_circle_number;
GtkWidget *hsi_label;
GtkWidget *hsi_description;
/* secure boot button */
GtkWidget *secure_boot_button_grid;
GtkWidget *secure_boot_icon;
GtkWidget *secure_boot_label;
GtkWidget *secure_boot_description;
/* event listbox */
GtkWidget *firmware_security_log_listbox;
GtkWidget *firmware_security_log_stack;
GtkWidget *firmware_security_log_pgroup;
GDBusProxy *bus_proxy;
GDBusProxy *properties_bus_proxy;
GHashTable *hsi1_dict;
GHashTable *hsi2_dict;
GHashTable *hsi3_dict;
GHashTable *hsi4_dict;
guint hsi_number;
SecureBootState secure_boot_state;
};
CC_PANEL_REGISTER (CcfirmwareSecurityPanel, cc_firmware_security_panel)
static void
set_hsi_button_view (CcfirmwareSecurityPanel *self);
static void
set_secure_boot_button_view (CcfirmwareSecurityPanel *self)
{
FwupdSecurityAttr *attr;
guint64 sb_flags = 0;
guint64 pk_flags = 0;
/* get HSI-1 flags if set */
attr = g_hash_table_lookup (self->hsi1_dict, FWUPD_SECURITY_ATTR_ID_UEFI_SECUREBOOT);
if (attr != NULL)
sb_flags = attr->flags;
attr = g_hash_table_lookup (self->hsi1_dict, FWUPD_SECURITY_ATTR_ID_UEFI_PK);
if (attr != NULL)
pk_flags = attr->flags;
/* enabled and valid */
if ((sb_flags & FWUPD_SECURITY_ATTR_FLAG_SUCCESS) > 0 &&
(pk_flags & FWUPD_SECURITY_ATTR_FLAG_SUCCESS) > 0)
{
self->secure_boot_state = SECURE_BOOT_STATE_ACTIVE;
}
else if ((sb_flags & FWUPD_SECURITY_ATTR_RESULT_ENABLED) > 0)
{
self->secure_boot_state = SECURE_BOOT_STATE_PROBLEMS;
}
else
{
self->secure_boot_state = SECURE_BOOT_STATE_INACTIVE;
}
/* update UI */
if (self->secure_boot_state == SECURE_BOOT_STATE_ACTIVE)
{
gtk_label_set_text (GTK_LABEL (self->secure_boot_label), _("Secure Boot is Active"));
gtk_label_set_text (GTK_LABEL (self->secure_boot_description), _("Protected against malicious software when the device starts."));
gtk_image_set_from_icon_name (GTK_IMAGE (self->secure_boot_icon), "channel-secure-symbolic");
gtk_widget_add_css_class (self->secure_boot_icon, "good");
}
else if (self->secure_boot_state == SECURE_BOOT_STATE_PROBLEMS)
{
gtk_label_set_text (GTK_LABEL (self->secure_boot_label), _("Secure Boot has Problems"));
gtk_label_set_text (GTK_LABEL (self->secure_boot_description), _("Some protection when the device is started."));
gtk_widget_add_css_class (self->secure_boot_icon, "error");
}
else
{
gtk_label_set_text (GTK_LABEL (self->secure_boot_label), _("Secure Boot is Off"));
gtk_label_set_text (GTK_LABEL (self->secure_boot_description), _("No protection when the device is started."));
gtk_widget_add_css_class (self->secure_boot_icon, "error");
}
}
static gchar *
fu_security_attr_get_description_for_eventlog (FwupdSecurityAttr *attr)
{
GString *str = g_string_new (attr->description);
/* nothing to do */
if (attr->flags & FWUPD_SECURITY_ATTR_FLAG_SUCCESS)
return g_string_free (str, FALSE);
if (attr->flags & FWUPD_SECURITY_ATTR_FLAG_ACTION_CONTACT_OEM &&
attr->flags & FWUPD_SECURITY_ATTR_FLAG_ACTION_CONFIG_FW)
{
g_string_append_printf (str, "\n\n%s",
/* TRANSLATORS: this is to explain an event that has already happened */
_("This issue could have been caused by a change in UEFI firmware "
"settings, an operating system configuration change, or because of "
"malicious software on this system."));
}
else if (attr->flags & FWUPD_SECURITY_ATTR_FLAG_ACTION_CONFIG_FW)
{
g_string_append_printf (str, "\n\n%s",
/* TRANSLATORS: this is to explain an event that has already happened */
_("This issue could have been caused by a change in the UEFI firmware "
"settings, or because of malicious software on this system."));
}
else if (attr->flags & FWUPD_SECURITY_ATTR_FLAG_ACTION_CONFIG_OS)
{
g_string_append_printf (str, "\n\n%s",
/* TRANSLATORS: this is to explain an event that has already happened */
_("This issue could have been caused by an operating system configuration "
"change, or because of malicious software on this system."));
}
return g_string_free (str, FALSE);
}
static void
parse_event_variant_iter (CcfirmwareSecurityPanel *self,
GVariantIter *iter)
{
g_autofree gchar *date_string = NULL;
g_autoptr (GDateTime) date = NULL;
g_autoptr (FwupdSecurityAttr) attr = fu_security_attr_new_from_variant(iter);
GtkWidget *row;
/* unknown to us */
if (attr->appstream_id == NULL || attr->title == NULL)
return;
/* skip events that have either been added or removed with no prior value */
if (attr->result == FWUPD_SECURITY_ATTR_RESULT_UNKNOWN ||
attr->result_fallback == FWUPD_SECURITY_ATTR_RESULT_UNKNOWN)
return;
/* build new row */
date = g_date_time_new_from_unix_local (attr->timestamp);
date_string = g_date_time_format (date, "\%F \%H:\%m:\%S");
row = adw_expander_row_new ();
if (attr->flags & FWUPD_SECURITY_ATTR_FLAG_SUCCESS)
{
adw_expander_row_set_icon_name (ADW_EXPANDER_ROW (row), "emblem-ok");
gtk_widget_add_css_class (row, "success-icon");
}
else
{
adw_expander_row_set_icon_name (ADW_EXPANDER_ROW (row), "process-stop");
gtk_widget_add_css_class (row, "error-icon");
}
if (attr->description != NULL)
{
GtkWidget *subrow = adw_action_row_new ();
g_autofree gchar *str = fu_security_attr_get_description_for_eventlog (attr);
adw_action_row_set_subtitle (ADW_ACTION_ROW (subrow), str);
adw_expander_row_add_row (ADW_EXPANDER_ROW (row), subrow);
}
else
{
adw_expander_row_set_enable_expansion (ADW_EXPANDER_ROW (row), FALSE);
gtk_widget_add_css_class (row, "hide-arrow");
}
adw_preferences_row_set_title (ADW_PREFERENCES_ROW (row), attr->title);
adw_expander_row_set_subtitle (ADW_EXPANDER_ROW (row), date_string);
adw_preferences_group_add (ADW_PREFERENCES_GROUP (self->firmware_security_log_pgroup), GTK_WIDGET (row));
adw_view_stack_set_visible_child_name (ADW_VIEW_STACK (self->firmware_security_log_stack), "page2");
}
static void
parse_variant_iter (CcfirmwareSecurityPanel *self,
GVariantIter *iter)
{
g_autoptr (FwupdSecurityAttr) attr = fu_security_attr_new_from_variant(iter);
const gchar *appstream_id = attr->appstream_id;
/* invalid */
if (appstream_id == NULL)
return;
/* in fwupd <= 1.8.3 org.fwupd.hsi.Uefi.SecureBoot was incorrectly marked as HSI-0,
* so lower the HSI number forcefully if this attribute failed -- the correct thing
* to do of course is to update fwupd to a newer build */
if (g_strcmp0 (attr->appstream_id, FWUPD_SECURITY_ATTR_ID_UEFI_SECUREBOOT) == 0 &&
(attr->flags & FWUPD_SECURITY_ATTR_FLAG_SUCCESS) == 0)
{
self->hsi_number = 0;
set_hsi_button_view (self);
}
/* insert into correct hash table */
switch (attr->hsi_level)
{
case 1:
g_hash_table_insert (self->hsi1_dict,
g_strdup (appstream_id),
g_steal_pointer (&attr));
break;
case 2:
g_hash_table_insert (self->hsi2_dict,
g_strdup (appstream_id),
g_steal_pointer (&attr));
break;
case 3:
g_hash_table_insert (self->hsi3_dict,
g_strdup (appstream_id),
g_steal_pointer (&attr));
break;
case 4:
g_hash_table_insert (self->hsi4_dict,
g_strdup (appstream_id),
g_steal_pointer (&attr));
break;
}
}
static void
parse_data_from_variant (CcfirmwareSecurityPanel *self,
GVariant *value,
const gboolean is_event)
{
const gchar *type_string;
g_autoptr (GVariantIter) iter = NULL;
type_string = g_variant_get_type_string (value);
if (g_strcmp0 (type_string, "(a{sv})") == 0)
{
g_variant_get (value, "(a{sv})", &iter);
if (is_event)
parse_event_variant_iter (self, iter);
else
parse_variant_iter (self, iter);
}
else if (g_strcmp0 (type_string, "a{sv}") == 0)
{
g_variant_get (value, "a{sv}", &iter);
if (is_event)
parse_event_variant_iter (self, iter);
else
parse_variant_iter (self, iter);
}
else
{
g_warning ("type %s not known", type_string);
}
}
static void
parse_array_from_variant (CcfirmwareSecurityPanel *self,
GVariant *value,
const gboolean is_event)
{
gsize sz;
g_autoptr (GVariant) untuple = NULL;
untuple = g_variant_get_child_value (value, 0);
sz = g_variant_n_children (untuple);
for (guint i = 0; i < sz; i++)
{
g_autoptr (GVariant) data = NULL;
data = g_variant_get_child_value (untuple, i);
if (is_event)
parse_data_from_variant (self, data, TRUE);
else
parse_data_from_variant (self, data, FALSE);
}
}
static void
on_bus_event_done_cb (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
g_autoptr (GError) error = NULL;
g_autoptr (GVariant) val = NULL;
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (user_data);
val = g_dbus_proxy_call_finish (G_DBUS_PROXY (source), res, &error);
if (val == NULL)
{
g_warning ("failed to get Security Attribute Event: %s", error->message);
return;
}
parse_array_from_variant (self, val, TRUE);
}
static void
on_bus_done (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (user_data);
g_autoptr (GError) error = NULL;
g_autoptr (GVariant) val = NULL;
val = g_dbus_proxy_call_finish (G_DBUS_PROXY (source), res, &error);
if (val == NULL)
{
CcApplication *application = CC_APPLICATION (g_application_get_default ());
g_warning ("failed to get Security Attribute: %s", error->message);
cc_shell_model_set_panel_visibility (cc_application_get_model (application),
"firmware-security",
CC_PANEL_HIDDEN);
set_secure_boot_button_view (self);
return;
}
parse_array_from_variant (self, val, FALSE);
set_secure_boot_button_view (self);
}
static void
on_bus_ready_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
g_autoptr (GError) error = NULL;
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (user_data);
self->bus_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (self->bus_proxy == NULL)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("failed to connect fwupd: %s", error->message);
return;
}
g_dbus_proxy_call (self->bus_proxy,
"GetHostSecurityAttrs",
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
cc_panel_get_cancellable (CC_PANEL (self)),
on_bus_done,
self);
g_dbus_proxy_call (self->bus_proxy,
"GetHostSecurityEvents",
g_variant_new ("(u)",
100),
G_DBUS_CALL_FLAGS_NONE,
-1,
cc_panel_get_cancellable (CC_PANEL (self)),
on_bus_event_done_cb,
self);
}
static void
on_hsi_button_clicked_cb (GtkWidget *widget,
gpointer data)
{
GtkWidget *toplevel;
CcShell *shell;
GtkWidget *dialog;
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (data);
dialog = cc_firmware_security_dialog_new (self->hsi_number,
self->hsi1_dict,
self->hsi2_dict,
self->hsi3_dict,
self->hsi4_dict);
shell = cc_panel_get_shell (CC_PANEL (self));
toplevel = cc_shell_get_toplevel (shell);
gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (toplevel));
gtk_widget_show (GTK_WIDGET (dialog));
}
static void
on_secure_boot_button_clicked_cb (GtkWidget *widget,
gpointer data)
{
GtkWidget *toplevel;
CcShell *shell;
GtkWidget *boot_dialog;
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (data);
boot_dialog = cc_firmware_security_boot_dialog_new (self->secure_boot_state);
shell = cc_panel_get_shell (CC_PANEL (self));
toplevel = cc_shell_get_toplevel (shell);
gtk_window_set_transient_for (GTK_WINDOW (boot_dialog), GTK_WINDOW (toplevel));
gtk_widget_show (boot_dialog);
}
static void
set_hsi_button_view_contain (CcfirmwareSecurityPanel *self,
guint hsi_number,
gchar *title,
const gchar *description)
{
switch (hsi_number)
{
case 0:
gtk_label_set_label (GTK_LABEL (self->hsi_circle_number), "0");
gtk_widget_add_css_class (self->hsi_circle_box, "level0");
gtk_widget_add_css_class (self->hsi_circle_number, "hsi0");
break;
case 1:
gtk_label_set_label (GTK_LABEL (self->hsi_circle_number), "1");
gtk_widget_add_css_class (self->hsi_circle_box, "level1");
gtk_widget_add_css_class (self->hsi_circle_number, "hsi1");
break;
case 2:
gtk_label_set_label (GTK_LABEL (self->hsi_circle_number), "2");
gtk_widget_add_css_class (self->hsi_circle_box, "level2");
gtk_widget_add_css_class (self->hsi_circle_number, "hsi2");
break;
case 3:
case 4:
gtk_label_set_label (GTK_LABEL (self->hsi_circle_number), "3");
gtk_widget_add_css_class (self->hsi_circle_box, "level3");
gtk_widget_add_css_class (self->hsi_circle_number, "hsi3");
break;
default:
gtk_label_set_label (GTK_LABEL (self->hsi_circle_number), "?");
gtk_widget_add_css_class (self->hsi_circle_box, "level1");
gtk_widget_add_css_class (self->hsi_circle_number, "hsi1");
break;
}
gtk_label_set_text (GTK_LABEL (self->hsi_label), title);
gtk_label_set_text (GTK_LABEL (self->hsi_description), description);
}
static void
set_hsi_button_view (CcfirmwareSecurityPanel *self)
{
switch (self->hsi_number)
{
case 0:
set_hsi_button_view_contain (self,
self->hsi_number,
/* TRANSLATORS: in reference to firmware protection: 0/4 stars */
_("Security Level 0"),
_("Exposed to serious security threats."));
break;
case 1:
set_hsi_button_view_contain (self,
self->hsi_number,
/* TRANSLATORS: in reference to firmware protection: 1/4 stars */
_("Security Level 1"),
_("Limited protection against simple security threats."));
break;
case 2:
set_hsi_button_view_contain (self,
self->hsi_number,
/* TRANSLATORS: in reference to firmware protection: 2/4 stars */
_("Security Level 2"),
_("Protected against common security threats."));
break;
case 3:
set_hsi_button_view_contain (self,
self->hsi_number,
/* TRANSLATORS: in reference to firmware protection: 3/4 stars */
_("Security Level 3"),
_("Protected against a wide range of security threats."));
break;
case 4:
set_hsi_button_view_contain (self,
/* Based on current HSI definition, the max HSI value would be 3. */
3,
/* TRANSLATORS: in reference to firmware protection: 4/4 stars */
_("Comprehensive Protection"),
_("Protected against a wide range of security threats."));
break;
case G_MAXUINT:
set_hsi_button_view_contain (self,
self->hsi_number,
/* TRANSLATORS: in reference to firmware protection: ??? stars */
_("Security Level"),
_("Security levels are not available for this device."));
break;
default:
g_warning ("incorrect HSI number %u", self->hsi_number);
}
}
static void
on_properties_bus_done_cb (GObject *source,
GAsyncResult *res,
gpointer user_data)
{
g_autoptr (GError) error = NULL;
g_autoptr (GVariant) val = NULL;
const gchar *hsi_str = NULL;
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (user_data);
val = g_dbus_proxy_call_finish (G_DBUS_PROXY (source), res, &error);
if (val == NULL)
{
g_warning ("failed to get HSI number");
return;
}
/* parse value */
hsi_str = g_variant_get_data (val);
if (hsi_str != NULL && g_str_has_prefix (hsi_str, "HSI:INVALID"))
{
self->hsi_number = G_MAXUINT;
}
else if (hsi_str != NULL && g_str_has_prefix (hsi_str, "HSI:"))
{
self->hsi_number = g_ascii_strtoll (hsi_str + 4, NULL, 10);
}
set_hsi_button_view (self);
}
static void
on_properties_bus_ready_cb (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (user_data);
g_autoptr (GError) error = NULL;
self->properties_bus_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (self->properties_bus_proxy == NULL)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
g_warning ("failed to connect fwupd: %s", error->message);
return;
}
g_dbus_proxy_call (self->properties_bus_proxy,
"Get",
g_variant_new ("(ss)",
"org.freedesktop.fwupd",
"HostSecurityId"),
G_DBUS_CALL_FLAGS_NONE,
-1,
cc_panel_get_cancellable (CC_PANEL (self)),
on_properties_bus_done_cb,
self);
}
static void
update_panel_visibility (const gchar *chassis_type)
{
CcApplication *application;
gboolean visible = TRUE;
/* there's no point showing this */
if (g_strcmp0 (chassis_type, "vm") == 0 || g_strcmp0 (chassis_type, "") == 0)
visible = FALSE;
application = CC_APPLICATION (g_application_get_default ());
cc_shell_model_set_panel_visibility (cc_application_get_model (application),
"firmware-security",
visible ? CC_PANEL_VISIBLE : CC_PANEL_HIDDEN);
g_debug ("Firmware Security panel visible: %s as chassis was %s",
visible ? "yes" : "no",
chassis_type);
}
void
cc_firmware_security_panel_static_init_func (void)
{
g_autoptr(GDBusConnection) connection = NULL;
g_autoptr(GError) error = NULL;
g_autoptr(GVariant) inner = NULL;
g_autoptr(GVariant) variant = NULL;
connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (!connection)
{
g_warning ("system bus not available: %s", error->message);
return;
}
variant = g_dbus_connection_call_sync (connection,
"org.freedesktop.hostname1",
"/org/freedesktop/hostname1",
"org.freedesktop.DBus.Properties",
"Get",
g_variant_new ("(ss)",
"org.freedesktop.hostname1",
"Chassis"),
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
&error);
if (!variant)
{
g_warning ("Cannot get org.freedesktop.hostname1.Chassis: %s", error->message);
return;
}
g_variant_get (variant, "(v)", &inner);
update_panel_visibility (g_variant_get_string (inner, NULL));
}
static void
cc_firmware_security_panel_finalize (GObject *object)
{
CcfirmwareSecurityPanel *self = CC_FIRMWARE_SECURITY_PANEL (object);
g_clear_pointer (&self->hsi1_dict, g_hash_table_unref);
g_clear_pointer (&self->hsi2_dict, g_hash_table_unref);
g_clear_pointer (&self->hsi3_dict, g_hash_table_unref);
g_clear_pointer (&self->hsi4_dict, g_hash_table_unref);
g_clear_object (&self->bus_proxy);
g_clear_object (&self->properties_bus_proxy);
G_OBJECT_CLASS (cc_firmware_security_panel_parent_class)->finalize (object);
}
static void
cc_firmware_security_panel_class_init (CcfirmwareSecurityPanelClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = cc_firmware_security_panel_finalize;
gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/control-center/firmware-security/cc-firmware-security-panel.ui");
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, firmware_security_log_pgroup);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, firmware_security_log_stack);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, hsi_button);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, hsi_description);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, hsi_circle_box);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, hsi_circle_number);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, hsi_label);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, secure_boot_button);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, secure_boot_description);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, secure_boot_icon);
gtk_widget_class_bind_template_child (widget_class, CcfirmwareSecurityPanel, secure_boot_label);
gtk_widget_class_bind_template_callback (widget_class, on_hsi_button_clicked_cb);
gtk_widget_class_bind_template_callback (widget_class, on_secure_boot_button_clicked_cb);
}
static void
cc_firmware_security_panel_init (CcfirmwareSecurityPanel *self)
{
g_resources_register (cc_firmware_security_get_resource ());
gtk_widget_init_template (GTK_WIDGET (self));
self->hsi1_dict = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) fu_security_attr_free);
self->hsi2_dict = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) fu_security_attr_free);
self->hsi3_dict = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) fu_security_attr_free);
self->hsi4_dict = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) fu_security_attr_free);
load_custom_css ("/org/gnome/control-center/firmware-security/security-level.css");
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
"org.freedesktop.fwupd",
"/",
"org.freedesktop.DBus.Properties",
cc_panel_get_cancellable (CC_PANEL (self)),
on_properties_bus_ready_cb,
self);
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
"org.freedesktop.fwupd",
"/",
"org.freedesktop.fwupd",
cc_panel_get_cancellable (CC_PANEL (self)),
on_bus_ready_cb,
self);
}