/* 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); }