fwupd/libfwupdplugin/fu-context.c

/*
 * Copyright (C) 2021 Richard Hughes <richard@hughsie.com>
 *
 * SPDX-License-Identifier: LGPL-2.1+
 */

#define G_LOG_DOMAIN "FuContext"

#include "config.h"

#include "fu-bios-settings-private.h"
#include "fu-context-private.h"
#include "fu-fdt-firmware.h"
#include "fu-hwids-private.h"
#include "fu-path.h"
#include "fu-smbios-private.h"
#include "fu-volume-private.h"

/**
 * FuContext:
 *
 * A context that represents the shared system state. This object is shared
 * between the engine, the plugins and the devices.
 */

typedef struct {
	FuContextFlags flags;
	FuHwids *hwids;
	FuSmbios *smbios;
	FuSmbiosChassisKind chassis_kind;
	FuQuirks *quirks;
	GHashTable *runtime_versions;
	GHashTable *compile_versions;
	GPtrArray *udev_subsystems;
	GPtrArray *esp_volumes;
	GHashTable *firmware_gtypes;
	GHashTable *hwid_flags; /* str: */
	FuBatteryState battery_state;
	FuLidState lid_state;
	guint battery_level;
	guint battery_threshold;
	FuBiosSettings *host_bios_settings;
	gboolean loaded_hwinfo;
	FuFirmware *fdt; /* optional */
} FuContextPrivate;

enum { SIGNAL_SECURITY_CHANGED, SIGNAL_LAST };

enum {
	PROP_0,
	PROP_BATTERY_STATE,
	PROP_LID_STATE,
	PROP_BATTERY_LEVEL,
	PROP_BATTERY_THRESHOLD,
	PROP_FLAGS,
	PROP_LAST
};

static guint signals[SIGNAL_LAST] = {0};

G_DEFINE_TYPE_WITH_PRIVATE(FuContext, fu_context, G_TYPE_OBJECT)

#define GET_PRIVATE(o) (fu_context_get_instance_private(o))

static GFile *
fu_context_get_fdt_file(GError **error)
{
	g_autofree gchar *fdtfn_local = NULL;
	g_autofree gchar *fdtfn_sys = NULL;
	g_autofree gchar *localstatedir_pkg = fu_path_from_kind(FU_PATH_KIND_LOCALSTATEDIR_PKG);
	g_autofree gchar *sysfsdir = NULL;

	/* look for override first, fall back to system value */
	fdtfn_local = g_build_filename(localstatedir_pkg, "system.dtb", NULL);
	if (g_file_test(fdtfn_local, G_FILE_TEST_EXISTS))
		return g_file_new_for_path(fdtfn_local);

	/* actual hardware value */
	sysfsdir = fu_path_from_kind(FU_PATH_KIND_SYSFSDIR_FW);
	fdtfn_sys = g_build_filename(sysfsdir, "fdt", NULL);
	if (g_file_test(fdtfn_sys, G_FILE_TEST_EXISTS))
		return g_file_new_for_path(fdtfn_sys);

	/* failed */
	g_set_error(error,
		    FWUPD_ERROR,
		    FWUPD_ERROR_NOT_SUPPORTED,
		    "cannot find %s or override %s",
		    fdtfn_sys,
		    fdtfn_local);
	return NULL;
}

/**
 * fu_context_get_fdt:
 * @self: a #FuContext
 * @error: (nullable): optional return location for an error
 *
 * Gets and parses the system FDT, aka. the Flat Device Tree.
 *
 * The results are cached internally to the context, and subsequent calls to this function
 * returns the pre-parsed object.
 *
 * Returns: (transfer full): a #FuFdtFirmware, or %NULL
 *
 * Since: 1.8.10
 **/
FuFirmware *
fu_context_get_fdt(FuContext *self, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(error == NULL || *error == NULL, NULL);

	/* load if not already parsed */
	if (priv->fdt == NULL) {
		g_autoptr(FuFirmware) fdt_tmp = fu_fdt_firmware_new();
		g_autoptr(GFile) file = fu_context_get_fdt_file(error);
		if (file == NULL)
			return NULL;
		if (!fu_firmware_parse_file(fdt_tmp, file, FWUPD_INSTALL_FLAG_NO_SEARCH, error)) {
			g_prefix_error(error, "failed to parse FDT: ");
			return NULL;
		}
		priv->fdt = g_steal_pointer(&fdt_tmp);
	}

	/* success */
	return g_object_ref(priv->fdt);
}

/**
 * fu_context_get_smbios:
 * @self: a #FuContext
 *
 * Gets the SMBIOS store.
 *
 * Returns: (transfer none): a #FuSmbios
 *
 * Since: 1.8.10
 **/
FuSmbios *
fu_context_get_smbios(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	return priv->smbios;
}

/**
 * fu_context_get_hwids:
 * @self: a #FuContext
 *
 * Gets the HWIDs store.
 *
 * Returns: (transfer none): a #FuHwids
 *
 * Since: 1.8.10
 **/
FuHwids *
fu_context_get_hwids(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	return priv->hwids;
}

/**
 * fu_context_get_smbios_string:
 * @self: a #FuContext
 * @structure_type: a SMBIOS structure type, e.g. %FU_SMBIOS_STRUCTURE_TYPE_BIOS
 * @offset: a SMBIOS offset
 * @error: (nullable): optional return location for an error
 *
 * Gets a hardware SMBIOS string.
 *
 * The @type and @offset can be referenced from the DMTF SMBIOS specification:
 * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.1.1.pdf
 *
 * Returns: a string, or %NULL
 *
 * Since: 1.6.0
 **/
const gchar *
fu_context_get_smbios_string(FuContext *self, guint8 structure_type, guint8 offset, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use SMBIOS before calling ->load_hwinfo()");
		return NULL;
	}
	return fu_smbios_get_string(priv->smbios, structure_type, offset, error);
}

/**
 * fu_context_get_smbios_data:
 * @self: a #FuContext
 * @structure_type: a SMBIOS structure type, e.g. %FU_SMBIOS_STRUCTURE_TYPE_BIOS
 * @error: (nullable): optional return location for an error
 *
 * Gets a hardware SMBIOS data.
 *
 * Returns: (transfer full): a #GBytes, or %NULL
 *
 * Since: 1.6.0
 **/
GBytes *
fu_context_get_smbios_data(FuContext *self, guint8 structure_type, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_autoptr(GBytes) blob = NULL;

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);

	/* must be valid and non-zero length */
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use SMBIOS before calling ->load_hwinfo()");
		g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_NOT_INITIALIZED, "no data");
		return NULL;
	}
	blob = fu_smbios_get_data(priv->smbios, structure_type, error);
	if (blob == NULL)
		return NULL;
	if (g_bytes_get_size(blob) == 0) {
		g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_INVALID_DATA, "no data");
		return NULL;
	}
	return g_steal_pointer(&blob);
}

/**
 * fu_context_get_smbios_integer:
 * @self: a #FuContext
 * @type: a structure type, e.g. %FU_SMBIOS_STRUCTURE_TYPE_BIOS
 * @offset: a structure offset
 * @error: (nullable): optional return location for an error
 *
 * Reads an integer value from the SMBIOS string table of a specific structure.
 *
 * The @type and @offset can be referenced from the DMTF SMBIOS specification:
 * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.1.1.pdf
 *
 * Returns: an integer, or %G_MAXUINT if invalid or not found
 *
 * Since: 1.6.0
 **/
guint
fu_context_get_smbios_integer(FuContext *self, guint8 type, guint8 offset, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), G_MAXUINT);
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use SMBIOS before calling ->load_hwinfo()");
		return G_MAXUINT;
	}
	return fu_smbios_get_integer(priv->smbios, type, offset, error);
}

/**
 * fu_context_reload_bios_settings:
 * @self: a #FuContext
 * @error: (nullable): optional return location for an error
 *
 * Refreshes the list of firmware attributes on the system.
 *
 * Since: 1.8.4
 **/
gboolean
fu_context_reload_bios_settings(FuContext *self, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	return fu_bios_settings_setup(priv->host_bios_settings, error);
}

/**
 * fu_context_get_bios_settings:
 * @self: a #FuContext
 *
 * Returns all the firmware attributes defined in the system.
 *
 * Returns: (transfer full): A #FuBiosSettings
 *
 * Since: 1.8.4
 **/
FuBiosSettings *
fu_context_get_bios_settings(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	return g_object_ref(priv->host_bios_settings);
}

/**
 * fu_context_get_bios_setting:
 * @self: a #FuContext
 * @name: a BIOS setting title, e.g. `BootOrderLock`
 *
 * Finds out if a system supports a given BIOS setting.
 *
 * Returns: (transfer none): #FwupdBiosSetting if the attr exists.
 *
 * Since: 1.8.4
 **/
FwupdBiosSetting *
fu_context_get_bios_setting(FuContext *self, const gchar *name)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(name != NULL, NULL);
	return fu_bios_settings_get_attr(priv->host_bios_settings, name);
}

/**
 * fu_context_get_bios_setting_pending_reboot:
 * @self: a #FuContext
 *
 * Determine if updates to BIOS settings are pending until next boot.
 *
 * Returns: %TRUE if updates are pending.
 *
 * Since: 1.8.4
 **/
gboolean
fu_context_get_bios_setting_pending_reboot(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	gboolean ret;
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	fu_bios_settings_get_pending_reboot(priv->host_bios_settings, &ret, NULL);
	return ret;
}

/**
 * fu_context_get_chassis_kind:
 * @self: a #FuContext
 *
 * Gets the chassis kind, if known.
 *
 * Returns: a #FuSmbiosChassisKind, e.g. %FU_SMBIOS_CHASSIS_KIND_LAPTOP
 *
 * Since: 1.8.10
 **/
FuSmbiosChassisKind
fu_context_get_chassis_kind(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	return priv->chassis_kind;
}

/**
 * fu_context_set_chassis_kind:
 * @self: a #FuContext
 * @chassis_kind: a #FuSmbiosChassisKind, e.g. %FU_SMBIOS_CHASSIS_KIND_TABLET
 *
 * Sets the chassis kind.
 *
 * Since: 1.8.10
 **/
void
fu_context_set_chassis_kind(FuContext *self, FuSmbiosChassisKind chassis_kind)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	priv->chassis_kind = chassis_kind;
}

/**
 * fu_context_has_hwid_guid:
 * @self: a #FuContext
 * @guid: a GUID, e.g. `059eb22d-6dc7-59af-abd3-94bbe017f67c`
 *
 * Finds out if a hardware GUID exists.
 *
 * Returns: %TRUE if the GUID exists
 *
 * Since: 1.6.0
 **/
gboolean
fu_context_has_hwid_guid(FuContext *self, const gchar *guid)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use HWIDs before calling ->load_hwinfo()");
		return FALSE;
	}
	return fu_hwids_has_guid(priv->hwids, guid);
}

/**
 * fu_context_get_hwid_guids:
 * @self: a #FuContext
 *
 * Returns all the HWIDs defined in the system. All hardware IDs on a
 * specific system can be shown using the `fwupdmgr hwids` command.
 *
 * Returns: (transfer none) (element-type utf8): an array of GUIDs
 *
 * Since: 1.6.0
 **/
GPtrArray *
fu_context_get_hwid_guids(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use HWIDs before calling ->load_hwinfo()");
		return NULL;
	}
	return fu_hwids_get_guids(priv->hwids);
}

/**
 * fu_context_get_hwid_value:
 * @self: a #FuContext
 * @key: a DMI ID, e.g. `BiosVersion`
 *
 * Gets the cached value for one specific key that is valid ASCII and suitable
 * for display.
 *
 * Returns: the string, e.g. `1.2.3`, or %NULL if not found
 *
 * Since: 1.6.0
 **/
const gchar *
fu_context_get_hwid_value(FuContext *self, const gchar *key)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(key != NULL, NULL);
	if (!priv->loaded_hwinfo) {
		g_critical("cannot use HWIDs before calling ->load_hwinfo()");
		return NULL;
	}
	return fu_hwids_get_value(priv->hwids, key);
}

/**
 * fu_context_get_hwid_replace_value:
 * @self: a #FuContext
 * @keys: a key, e.g. `HardwareID-3` or %FU_HWIDS_KEY_PRODUCT_SKU
 * @error: (nullable): optional return location for an error
 *
 * Gets the replacement value for a specific key. All hardware IDs on a
 * specific system can be shown using the `fwupdmgr hwids` command.
 *
 * Returns: (transfer full): a string, or %NULL for error.
 *
 * Since: 1.6.0
 **/
gchar *
fu_context_get_hwid_replace_value(FuContext *self, const gchar *keys, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(keys != NULL, NULL);
	g_return_val_if_fail(error == NULL || *error == NULL, NULL);

	if (!priv->loaded_hwinfo) {
		g_critical("cannot use HWIDs before calling ->load_hwinfo()");
		g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_NOT_INITIALIZED, "no data");
		return NULL;
	}
	return fu_hwids_get_replace_values(priv->hwids, keys, error);
}

/**
 * fu_context_add_runtime_version:
 * @self: a #FuContext
 * @component_id: an AppStream component id, e.g. `org.gnome.Software`
 * @version: a version string, e.g. `1.2.3`
 *
 * Sets a runtime version of a specific dependency.
 *
 * Since: 1.6.0
 **/
void
fu_context_add_runtime_version(FuContext *self, const gchar *component_id, const gchar *version)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(component_id != NULL);
	g_return_if_fail(version != NULL);

	if (priv->runtime_versions == NULL)
		return;
	g_hash_table_insert(priv->runtime_versions, g_strdup(component_id), g_strdup(version));
}

/**
 * fu_context_set_runtime_versions:
 * @self: a #FuContext
 * @runtime_versions: (element-type utf8 utf8): dictionary of versions
 *
 * Sets the runtime versions for a plugin.
 *
 * Since: 1.6.0
 **/
void
fu_context_set_runtime_versions(FuContext *self, GHashTable *runtime_versions)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(runtime_versions != NULL);
	priv->runtime_versions = g_hash_table_ref(runtime_versions);
}

/**
 * fu_context_add_compile_version:
 * @self: a #FuContext
 * @component_id: an AppStream component id, e.g. `org.gnome.Software`
 * @version: a version string, e.g. `1.2.3`
 *
 * Sets a compile-time version of a specific dependency.
 *
 * Since: 1.6.0
 **/
void
fu_context_add_compile_version(FuContext *self, const gchar *component_id, const gchar *version)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(component_id != NULL);
	g_return_if_fail(version != NULL);

	if (priv->compile_versions == NULL)
		return;
	g_hash_table_insert(priv->compile_versions, g_strdup(component_id), g_strdup(version));
}

/**
 * fu_context_set_compile_versions:
 * @self: a #FuContext
 * @compile_versions: (element-type utf8 utf8): dictionary of versions
 *
 * Sets the compile time versions for a plugin.
 *
 * Since: 1.6.0
 **/
void
fu_context_set_compile_versions(FuContext *self, GHashTable *compile_versions)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(compile_versions != NULL);
	priv->compile_versions = g_hash_table_ref(compile_versions);
}

/**
 * fu_context_add_udev_subsystem:
 * @self: a #FuContext
 * @subsystem: a subsystem name, e.g. `pciport`
 *
 * Registers the udev subsystem to be watched by the daemon.
 *
 * Plugins can use this method only in fu_plugin_init()
 *
 * Since: 1.6.0
 **/
void
fu_context_add_udev_subsystem(FuContext *self, const gchar *subsystem)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(subsystem != NULL);

	for (guint i = 0; i < priv->udev_subsystems->len; i++) {
		const gchar *subsystem_tmp = g_ptr_array_index(priv->udev_subsystems, i);
		if (g_strcmp0(subsystem_tmp, subsystem) == 0)
			return;
	}
	g_debug("added udev subsystem watch of %s", subsystem);
	g_ptr_array_add(priv->udev_subsystems, g_strdup(subsystem));
}

/**
 * fu_context_get_udev_subsystems:
 * @self: a #FuContext
 *
 * Gets the udev subsystems required by all plugins.
 *
 * Returns: (transfer none) (element-type utf8): List of subsystems
 *
 * Since: 1.6.0
 **/
GPtrArray *
fu_context_get_udev_subsystems(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	return priv->udev_subsystems;
}

/**
 * fu_context_add_firmware_gtype:
 * @self: a #FuContext
 * @id: (nullable): an optional string describing the type, e.g. `ihex`
 * @gtype: a #GType e.g. `FU_TYPE_FOO_FIRMWARE`
 *
 * Adds a firmware #GType which is used when creating devices. If @id is not
 * specified then it is guessed using the #GType name.
 *
 * Plugins can use this method only in fu_plugin_init()
 *
 * Since: 1.6.0
 **/
void
fu_context_add_firmware_gtype(FuContext *self, const gchar *id, GType gtype)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(id != NULL);
	g_return_if_fail(gtype != G_TYPE_INVALID);
	g_type_ensure(gtype);
	g_hash_table_insert(priv->firmware_gtypes, g_strdup(id), GSIZE_TO_POINTER(gtype));
}

/**
 * fu_context_get_firmware_gtype_by_id:
 * @self: a #FuContext
 * @id: an string describing the type, e.g. `ihex`
 *
 * Returns the #GType using the firmware @id.
 *
 * Returns: a #GType, or %G_TYPE_INVALID
 *
 * Since: 1.6.0
 **/
GType
fu_context_get_firmware_gtype_by_id(FuContext *self, const gchar *id)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), G_TYPE_INVALID);
	g_return_val_if_fail(id != NULL, G_TYPE_INVALID);
	return GPOINTER_TO_SIZE(g_hash_table_lookup(priv->firmware_gtypes, id));
}

static gint
fu_context_gtypes_sort_cb(gconstpointer a, gconstpointer b)
{
	const gchar *stra = *((const gchar **)a);
	const gchar *strb = *((const gchar **)b);
	return g_strcmp0(stra, strb);
}

/**
 * fu_context_get_firmware_gtype_ids:
 * @self: a #FuContext
 *
 * Returns all the firmware #GType IDs.
 *
 * Returns: (transfer none) (element-type utf8): List of subsystems
 *
 * Since: 1.6.0
 **/
GPtrArray *
fu_context_get_firmware_gtype_ids(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	GPtrArray *firmware_gtypes = g_ptr_array_new_with_free_func(g_free);
	g_autoptr(GList) keys = g_hash_table_get_keys(priv->firmware_gtypes);

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);

	for (GList *l = keys; l != NULL; l = l->next) {
		const gchar *id = l->data;
		g_ptr_array_add(firmware_gtypes, g_strdup(id));
	}
	g_ptr_array_sort(firmware_gtypes, fu_context_gtypes_sort_cb);
	return firmware_gtypes;
}

/**
 * fu_context_add_quirk_key:
 * @self: a #FuContext
 * @key: a quirk string, e.g. `DfuVersion`
 *
 * Adds a possible quirk key. If added by a plugin it should be namespaced
 * using the plugin name, where possible.
 *
 * Plugins can use this method only in fu_plugin_init()
 *
 * Since: 1.6.0
 **/
void
fu_context_add_quirk_key(FuContext *self, const gchar *key)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(key != NULL);
	if (priv->quirks == NULL)
		return;
	fu_quirks_add_possible_key(priv->quirks, key);
}

/**
 * fu_context_lookup_quirk_by_id:
 * @self: a #FuContext
 * @guid: GUID to lookup
 * @key: an ID to match the entry, e.g. `Summary`
 *
 * Looks up an entry in the hardware database using a string value.
 *
 * Returns: (transfer none): values from the database, or %NULL if not found
 *
 * Since: 1.6.0
 **/
const gchar *
fu_context_lookup_quirk_by_id(FuContext *self, const gchar *guid, const gchar *key)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(guid != NULL, NULL);
	g_return_val_if_fail(key != NULL, NULL);

	/* exact ID */
	return fu_quirks_lookup_by_id(priv->quirks, guid, key);
}

/**
 * fu_context_lookup_quirk_by_id_iter:
 * @self: a #FuContext
 * @guid: GUID to lookup
 * @iter_cb: (scope async): a function to call for each result
 * @user_data: user data passed to @iter_cb
 *
 * Looks up all entries in the hardware database using a GUID value.
 *
 * Returns: %TRUE if the ID was found, and @iter was called
 *
 * Since: 1.6.0
 **/
gboolean
fu_context_lookup_quirk_by_id_iter(FuContext *self,
				   const gchar *guid,
				   FuContextLookupIter iter_cb,
				   gpointer user_data)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	g_return_val_if_fail(guid != NULL, FALSE);
	g_return_val_if_fail(iter_cb != NULL, FALSE);
	return fu_quirks_lookup_by_id_iter(priv->quirks, guid, (FuQuirksIter)iter_cb, user_data);
}

/**
 * fu_context_security_changed:
 * @self: a #FuContext
 *
 * Informs the daemon that the HSI state may have changed.
 *
 * Since: 1.6.0
 **/
void
fu_context_security_changed(FuContext *self)
{
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_signal_emit(self, signals[SIGNAL_SECURITY_CHANGED], 0);
}

typedef gboolean (*FuContextHwidsSetupFunc)(FuContext *self, FuHwids *hwids, GError **error);

/**
 * fu_context_load_hwinfo:
 * @self: a #FuContext
 * @progress: a #FuProgress
 * @flags: a #FuContextHwidFlags, e.g. %FU_CONTEXT_HWID_FLAG_LOAD_SMBIOS
 * @error: (nullable): optional return location for an error
 *
 * Loads all hardware information parts of the context.
 *
 * Returns: %TRUE for success
 *
 * Since: 1.8.10
 **/
gboolean
fu_context_load_hwinfo(FuContext *self,
		       FuProgress *progress,
		       FuContextHwidFlags flags,
		       GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	GPtrArray *guids;
	g_autoptr(GError) error_hwids = NULL;
	g_autoptr(GError) error_bios_settings = NULL;
	struct {
		const gchar *name;
		FuContextHwidFlags flag;
		FuContextHwidsSetupFunc func;
	} hwids_setup_map[] = {{"config", FU_CONTEXT_HWID_FLAG_LOAD_CONFIG, fu_hwids_config_setup},
			       {"smbios", FU_CONTEXT_HWID_FLAG_LOAD_SMBIOS, fu_hwids_smbios_setup},
			       {"fdt", FU_CONTEXT_HWID_FLAG_LOAD_FDT, fu_hwids_fdt_setup},
			       {"kenv", FU_CONTEXT_HWID_FLAG_LOAD_KENV, fu_hwids_kenv_setup},
			       {"dmi", FU_CONTEXT_HWID_FLAG_LOAD_DMI, fu_hwids_dmi_setup},
			       {NULL, FU_CONTEXT_HWID_FLAG_NONE, NULL}};

	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	g_return_val_if_fail(error == NULL || *error == NULL, FALSE);

	/* progress */
	fu_progress_set_id(progress, G_STRLOC);
	fu_progress_add_step(progress, FWUPD_STATUS_LOADING, 1, "hwids-setup-funcs");
	fu_progress_add_step(progress, FWUPD_STATUS_LOADING, 1, "hwids-setup");
	fu_progress_add_step(progress, FWUPD_STATUS_LOADING, 3, "set-flags");
	fu_progress_add_step(progress, FWUPD_STATUS_LOADING, 95, "reload-bios-settings");

	/* run all the HWID setup funcs */
	for (guint i = 0; hwids_setup_map[i].name != NULL; i++) {
		if ((flags & hwids_setup_map[i].flag) > 0) {
			g_autoptr(GError) error_local = NULL;
			if (!hwids_setup_map[i].func(self, priv->hwids, &error_local)) {
				g_debug("failed to load %s: %s",
					hwids_setup_map[i].name,
					error_local->message);
				continue;
			}
		}
	}
	priv->loaded_hwinfo = TRUE;
	fu_progress_step_done(progress);

	if (!fu_hwids_setup(priv->hwids, &error_hwids))
		g_warning("Failed to load HWIDs: %s", error_hwids->message);
	fu_progress_step_done(progress);

	/* set the hwid flags */
	guids = fu_context_get_hwid_guids(self);
	for (guint i = 0; i < guids->len; i++) {
		const gchar *guid = g_ptr_array_index(guids, i);
		const gchar *value;

		/* does prefixed quirk exist */
		value = fu_context_lookup_quirk_by_id(self, guid, FU_QUIRKS_FLAGS);
		if (value != NULL) {
			g_auto(GStrv) values = g_strsplit(value, ",", -1);
			for (guint j = 0; values[j] != NULL; j++)
				g_hash_table_add(priv->hwid_flags, g_strdup(values[j]));
		}
	}
	fu_progress_step_done(progress);

	fu_context_add_udev_subsystem(self, "firmware-attributes");
	if (!fu_context_reload_bios_settings(self, &error_bios_settings))
		g_debug("%s", error_bios_settings->message);
	fu_progress_step_done(progress);

	/* always */
	return TRUE;
}

/**
 * fu_context_has_hwid_flag:
 * @self: a #FuContext
 * @flag: flag, e.g. `use-legacy-bootmgr-desc`
 *
 * Returns if a HwId custom flag exists, typically added from a DMI quirk.
 *
 * Returns: %TRUE if the flag exists
 *
 * Since: 1.7.2
 **/
gboolean
fu_context_has_hwid_flag(FuContext *self, const gchar *flag)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	g_return_val_if_fail(flag != NULL, FALSE);
	return g_hash_table_lookup(priv->hwid_flags, flag) != NULL;
}

/**
 * fu_context_load_quirks:
 * @self: a #FuContext
 * @flags: quirks load flags, e.g. %FU_QUIRKS_LOAD_FLAG_READONLY_FS
 * @error: (nullable): optional return location for an error
 *
 * Loads all quirks into the context.
 *
 * Returns: %TRUE for success
 *
 * Since: 1.6.0
 **/
gboolean
fu_context_load_quirks(FuContext *self, FuQuirksLoadFlags flags, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_autoptr(GError) error_local = NULL;

	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	g_return_val_if_fail(error == NULL || *error == NULL, FALSE);

	/* rebuild silo if required */
	if (!fu_quirks_load(priv->quirks, flags, &error_local))
		g_warning("Failed to load quirks: %s", error_local->message);

	/* always */
	return TRUE;
}

/**
 * fu_context_get_battery_state:
 * @self: a #FuContext
 *
 * Gets if the system is on battery power, e.g. UPS or laptop battery.
 *
 * Returns: a battery state, e.g. %FU_BATTERY_STATE_DISCHARGING
 *
 * Since: 1.6.0
 **/
FuBatteryState
fu_context_get_battery_state(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	return priv->battery_state;
}

/**
 * fu_context_set_battery_state:
 * @self: a #FuContext
 * @battery_state: a battery state, e.g. %FU_BATTERY_STATE_DISCHARGING
 *
 * Sets if the system is on battery power, e.g. UPS or laptop battery.
 *
 * Since: 1.6.0
 **/
void
fu_context_set_battery_state(FuContext *self, FuBatteryState battery_state)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	if (priv->battery_state == battery_state)
		return;
	priv->battery_state = battery_state;
	g_debug("battery state now %s", fu_battery_state_to_string(battery_state));
	g_object_notify(G_OBJECT(self), "battery-state");
}

/**
 * fu_context_get_lid_state:
 * @self: a #FuContext
 *
 * Gets the laptop lid state, if applicable.
 *
 * Returns: a battery state, e.g. %FU_LID_STATE_CLOSED
 *
 * Since: 1.7.4
 **/
FuLidState
fu_context_get_lid_state(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), FALSE);
	return priv->lid_state;
}

/**
 * fu_context_set_lid_state:
 * @self: a #FuContext
 * @lid_state: a battery state, e.g. %FU_LID_STATE_CLOSED
 *
 * Sets the laptop lid state, if applicable.
 *
 * Since: 1.7.4
 **/
void
fu_context_set_lid_state(FuContext *self, FuLidState lid_state)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	if (priv->lid_state == lid_state)
		return;
	priv->lid_state = lid_state;
	g_debug("lid state now %s", fu_lid_state_to_string(lid_state));
	g_object_notify(G_OBJECT(self), "lid-state");
}

/**
 * fu_context_get_battery_level:
 * @self: a #FuContext
 *
 * Gets the system battery level in percent.
 *
 * Returns: percentage value, or %FWUPD_BATTERY_LEVEL_INVALID for unknown
 *
 * Since: 1.6.0
 **/
guint
fu_context_get_battery_level(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), G_MAXUINT);
	return priv->battery_level;
}

/**
 * fu_context_set_battery_level:
 * @self: a #FuContext
 * @battery_level: value
 *
 * Sets the system battery level in percent.
 *
 * Since: 1.6.0
 **/
void
fu_context_set_battery_level(FuContext *self, guint battery_level)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(battery_level <= FWUPD_BATTERY_LEVEL_INVALID);
	if (priv->battery_level == battery_level)
		return;
	priv->battery_level = battery_level;
	g_debug("battery level now %u", battery_level);
	g_object_notify(G_OBJECT(self), "battery-level");
}

/**
 * fu_context_get_battery_threshold:
 * @self: a #FuContext
 *
 * Gets the system battery threshold in percent.
 *
 * Returns: percentage value, or %FWUPD_BATTERY_LEVEL_INVALID for unknown
 *
 * Since: 1.6.0
 **/
guint
fu_context_get_battery_threshold(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_val_if_fail(FU_IS_CONTEXT(self), G_MAXUINT);
	return priv->battery_threshold;
}

/**
 * fu_context_set_battery_threshold:
 * @self: a #FuContext
 * @battery_threshold: value
 *
 * Sets the system battery threshold in percent.
 *
 * Since: 1.6.0
 **/
void
fu_context_set_battery_threshold(FuContext *self, guint battery_threshold)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(battery_threshold <= FWUPD_BATTERY_LEVEL_INVALID);
	if (priv->battery_threshold == battery_threshold)
		return;
	priv->battery_threshold = battery_threshold;
	g_debug("battery threshold now %u", battery_threshold);
	g_object_notify(G_OBJECT(self), "battery-threshold");
}

/**
 * fu_context_add_flag:
 * @context: a #FuContext
 * @flag: the context flag
 *
 * Adds a specific flag to the context.
 *
 * Since: 1.8.5
 **/
void
fu_context_add_flag(FuContext *context, FuContextFlags flag)
{
	FuContextPrivate *priv = GET_PRIVATE(context);
	g_return_if_fail(FU_IS_CONTEXT(context));
	if (priv->flags & flag)
		return;
	priv->flags |= flag;
	g_object_notify(G_OBJECT(context), "flags");
}

/**
 * fu_context_remove_flag:
 * @context: a #FuContext
 * @flag: the context flag
 *
 * Removes a specific flag from the context.
 *
 * Since: 1.8.10
 **/
void
fu_context_remove_flag(FuContext *context, FuContextFlags flag)
{
	FuContextPrivate *priv = GET_PRIVATE(context);
	g_return_if_fail(FU_IS_CONTEXT(context));
	if ((priv->flags & flag) == 0)
		return;
	priv->flags &= ~flag;
	g_object_notify(G_OBJECT(context), "flags");
}

/**
 * fu_context_has_flag:
 * @context: a #FuContext
 * @flag: the context flag
 *
 * Finds if the context has a specific flag.
 *
 * Returns: %TRUE if the flag is set
 *
 * Since: 1.8.5
 **/
gboolean
fu_context_has_flag(FuContext *context, FuContextFlags flag)
{
	FuContextPrivate *priv = GET_PRIVATE(context);
	g_return_val_if_fail(FU_IS_CONTEXT(context), FALSE);
	return (priv->flags & flag) > 0;
}

/**
 * fu_context_add_esp_volume:
 * @self: a #FuContext
 * @volume: a #FuVolume
 *
 * Adds an ESP volume location.
 *
 * Since: 1.8.5
 **/
void
fu_context_add_esp_volume(FuContext *self, FuVolume *volume)
{
	FuContextPrivate *priv = GET_PRIVATE(self);

	g_return_if_fail(FU_IS_CONTEXT(self));
	g_return_if_fail(FU_IS_VOLUME(volume));

	/* check for dupes */
	for (guint i = 0; i < priv->esp_volumes->len; i++) {
		FuVolume *volume_tmp = g_ptr_array_index(priv->esp_volumes, i);
		if (g_strcmp0(fu_volume_get_id(volume_tmp), fu_volume_get_id(volume)) == 0) {
			g_debug("not adding duplicate volume %s", fu_volume_get_id(volume));
			return;
		}
	}

	/* add */
	g_ptr_array_add(priv->esp_volumes, g_object_ref(volume));
}

/**
 * fu_context_get_esp_volumes:
 * @self: a #FuContext
 * @error: (nullable): optional return location for an error
 *
 * Finds all volumes that could be an ESP.
 *
 * The volumes are cached and so subsequent calls to this function will be much faster.
 *
 * Returns: (transfer container) (element-type FuVolume): a #GPtrArray, or %NULL if no ESP was found
 *
 * Since: 1.8.5
 **/
GPtrArray *
fu_context_get_esp_volumes(FuContext *self, GError **error)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	const gchar *path_tmp;
	g_autoptr(GError) error_bdp = NULL;
	g_autoptr(GError) error_esp = NULL;
	g_autoptr(GPtrArray) volumes_bdp = NULL;
	g_autoptr(GPtrArray) volumes_esp = NULL;

	g_return_val_if_fail(FU_IS_CONTEXT(self), NULL);
	g_return_val_if_fail(error == NULL || *error == NULL, NULL);

	/* cached result */
	if (priv->esp_volumes->len > 0)
		return g_ptr_array_ref(priv->esp_volumes);

	/* for the test suite use local directory for ESP */
	path_tmp = g_getenv("FWUPD_UEFI_ESP_PATH");
	if (path_tmp != NULL) {
		g_autoptr(FuVolume) vol = fu_volume_new_from_mount_path(path_tmp);
		fu_context_add_esp_volume(self, vol);
		return g_ptr_array_ref(priv->esp_volumes);
	}

	/* ESP */
	volumes_esp = fu_volume_new_by_kind(FU_VOLUME_KIND_ESP, &error_esp);
	if (volumes_esp == NULL) {
		g_debug("%s", error_esp->message);
	} else {
		for (guint i = 0; i < volumes_esp->len; i++) {
			FuVolume *vol = g_ptr_array_index(volumes_esp, i);
			g_autofree gchar *type = fu_volume_get_id_type(vol);
			if (g_strcmp0(type, "ext4") == 0)
				continue;
			fu_context_add_esp_volume(self, vol);
		}
	}

	/* BDP */
	volumes_bdp = fu_volume_new_by_kind(FU_VOLUME_KIND_BDP, &error_bdp);
	if (volumes_bdp == NULL) {
		g_debug("%s", error_bdp->message);
	} else {
		for (guint i = 0; i < volumes_bdp->len; i++) {
			FuVolume *vol = g_ptr_array_index(volumes_bdp, i);
			g_autofree gchar *type = fu_volume_get_id_type(vol);
			if (g_strcmp0(type, "vfat") != 0)
				continue;
			if (!fu_volume_is_internal(vol))
				continue;
			fu_context_add_esp_volume(self, vol);
		}
	}

	/* nothing found */
	if (priv->esp_volumes->len == 0) {
		g_set_error_literal(error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND, "No ESP or BDP found");
		return NULL;
	}

	/* success */
	return g_ptr_array_ref(priv->esp_volumes);
}

static void
fu_context_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
	FuContext *self = FU_CONTEXT(object);
	FuContextPrivate *priv = GET_PRIVATE(self);
	switch (prop_id) {
	case PROP_BATTERY_STATE:
		g_value_set_uint(value, priv->battery_state);
		break;
	case PROP_LID_STATE:
		g_value_set_uint(value, priv->lid_state);
		break;
	case PROP_BATTERY_LEVEL:
		g_value_set_uint(value, priv->battery_level);
		break;
	case PROP_BATTERY_THRESHOLD:
		g_value_set_uint(value, priv->battery_threshold);
		break;
	case PROP_FLAGS:
		g_value_set_uint64(value, priv->flags);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
		break;
	}
}

static void
fu_context_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
	FuContext *self = FU_CONTEXT(object);
	FuContextPrivate *priv = GET_PRIVATE(self);
	switch (prop_id) {
	case PROP_BATTERY_STATE:
		fu_context_set_battery_state(self, g_value_get_uint(value));
		break;
	case PROP_LID_STATE:
		fu_context_set_lid_state(self, g_value_get_uint(value));
		break;
	case PROP_BATTERY_LEVEL:
		fu_context_set_battery_level(self, g_value_get_uint(value));
		break;
	case PROP_BATTERY_THRESHOLD:
		fu_context_set_battery_threshold(self, g_value_get_uint(value));
		break;
	case PROP_FLAGS:
		priv->flags = g_value_get_uint64(value);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
		break;
	}
}

static void
fu_context_finalize(GObject *object)
{
	FuContext *self = FU_CONTEXT(object);
	FuContextPrivate *priv = GET_PRIVATE(self);

	if (priv->runtime_versions != NULL)
		g_hash_table_unref(priv->runtime_versions);
	if (priv->compile_versions != NULL)
		g_hash_table_unref(priv->compile_versions);
	if (priv->fdt != NULL)
		g_object_unref(priv->fdt);
	g_object_unref(priv->hwids);
	g_hash_table_unref(priv->hwid_flags);
	g_object_unref(priv->quirks);
	g_object_unref(priv->smbios);
	g_object_unref(priv->host_bios_settings);
	g_hash_table_unref(priv->firmware_gtypes);
	g_ptr_array_unref(priv->udev_subsystems);
	g_ptr_array_unref(priv->esp_volumes);

	G_OBJECT_CLASS(fu_context_parent_class)->finalize(object);
}

static void
fu_context_class_init(FuContextClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS(klass);
	GParamSpec *pspec;

	object_class->get_property = fu_context_get_property;
	object_class->set_property = fu_context_set_property;

	/**
	 * FuContext:battery-state:
	 *
	 * The system battery state.
	 *
	 * Since: 1.6.0
	 */
	pspec = g_param_spec_uint("battery-state",
				  NULL,
				  NULL,
				  FU_BATTERY_STATE_UNKNOWN,
				  FU_BATTERY_STATE_LAST,
				  FU_BATTERY_STATE_UNKNOWN,
				  G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
	g_object_class_install_property(object_class, PROP_BATTERY_STATE, pspec);

	/**
	 * FuContext:lid-state:
	 *
	 * The system lid state.
	 *
	 * Since: 1.7.4
	 */
	pspec = g_param_spec_uint("lid-state",
				  NULL,
				  NULL,
				  FU_LID_STATE_UNKNOWN,
				  FU_LID_STATE_LAST,
				  FU_LID_STATE_UNKNOWN,
				  G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
	g_object_class_install_property(object_class, PROP_LID_STATE, pspec);

	/**
	 * FuContext:battery-level:
	 *
	 * The system battery level in percent.
	 *
	 * Since: 1.6.0
	 */
	pspec = g_param_spec_uint("battery-level",
				  NULL,
				  NULL,
				  0,
				  FWUPD_BATTERY_LEVEL_INVALID,
				  FWUPD_BATTERY_LEVEL_INVALID,
				  G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
	g_object_class_install_property(object_class, PROP_BATTERY_LEVEL, pspec);

	/**
	 * FuContext:battery-threshold:
	 *
	 * The system battery threshold in percent.
	 *
	 * Since: 1.6.0
	 */
	pspec = g_param_spec_uint("battery-threshold",
				  NULL,
				  NULL,
				  0,
				  FWUPD_BATTERY_LEVEL_INVALID,
				  FWUPD_BATTERY_LEVEL_INVALID,
				  G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
	g_object_class_install_property(object_class, PROP_BATTERY_THRESHOLD, pspec);

	/**
	 * FuContext:flags:
	 *
	 * The context flags.
	 *
	 * Since: 1.8.10
	 */
	pspec = g_param_spec_uint64("flags",
				    NULL,
				    NULL,
				    FU_CONTEXT_FLAG_NONE,
				    G_MAXUINT64,
				    FU_CONTEXT_FLAG_NONE,
				    G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
	g_object_class_install_property(object_class, PROP_FLAGS, pspec);

	/**
	 * FuContext::security-changed:
	 * @self: the #FuContext instance that emitted the signal
	 *
	 * The ::security-changed signal is emitted when some system state has changed that could
	 * have affected the security level.
	 *
	 * Since: 1.6.0
	 **/
	signals[SIGNAL_SECURITY_CHANGED] =
	    g_signal_new("security-changed",
			 G_TYPE_FROM_CLASS(object_class),
			 G_SIGNAL_RUN_LAST,
			 G_STRUCT_OFFSET(FuContextClass, security_changed),
			 NULL,
			 NULL,
			 g_cclosure_marshal_VOID__VOID,
			 G_TYPE_NONE,
			 0);

	object_class->finalize = fu_context_finalize;
}

static void
fu_context_init(FuContext *self)
{
	FuContextPrivate *priv = GET_PRIVATE(self);
	priv->chassis_kind = FU_SMBIOS_CHASSIS_KIND_UNKNOWN;
	priv->battery_level = FWUPD_BATTERY_LEVEL_INVALID;
	priv->battery_threshold = FWUPD_BATTERY_LEVEL_INVALID;
	priv->smbios = fu_smbios_new();
	priv->hwids = fu_hwids_new();
	priv->hwid_flags = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
	priv->udev_subsystems = g_ptr_array_new_with_free_func(g_free);
	priv->firmware_gtypes = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
	priv->quirks = fu_quirks_new();
	priv->host_bios_settings = fu_bios_settings_new();
	priv->esp_volumes = g_ptr_array_new_with_free_func((GDestroyNotify)g_object_unref);
}

/**
 * fu_context_new:
 *
 * Creates a new #FuContext
 *
 * Returns: (transfer full): the object
 *
 * Since: 1.6.0
 **/
FuContext *
fu_context_new(void)
{
	return FU_CONTEXT(g_object_new(FU_TYPE_CONTEXT, NULL));
}