fwupd/libfwupdplugin/fu-coswid-firmware.c

/*
 * Copyright (C) 2022 Richard Hughes <richard@hughsie.com>
 *
 * SPDX-License-Identifier: LGPL-2.1+
 */

#define G_LOG_DOMAIN "FuFirmware"

#include "config.h"

#ifdef HAVE_CBOR
#include <cbor.h>
#endif

#include "fu-common.h"
#include "fu-coswid-common.h"
#include "fu-coswid-firmware.h"

/**
 * FuCoswidFirmware:
 *
 * A coSWID SWID section.
 *
 * See also: [class@FuCoswidFirmware]
 */

typedef struct {
	gchar *product;
	gchar *summary;
	gchar *colloquial_version;
	FuCoswidVersionScheme version_scheme;
	GPtrArray *links;    /* of FuCoswidFirmwareLink */
	GPtrArray *entities; /* of FuCoswidFirmwareEntity */
} FuCoswidFirmwarePrivate;

G_DEFINE_TYPE_WITH_PRIVATE(FuCoswidFirmware, fu_coswid_firmware, FU_TYPE_FIRMWARE)
#define GET_PRIVATE(o) (fu_coswid_firmware_get_instance_private(o))

typedef struct {
	gchar *name;
	gchar *regid;
	FuCoswidEntityRole roles[6];
} FuCoswidFirmwareEntity;

typedef struct {
	gchar *href;
	FuCoswidLinkRel rel;
} FuCoswidFirmwareLink;

static void
fu_coswid_firmware_entity_free(FuCoswidFirmwareEntity *entity)
{
	g_free(entity->name);
	g_free(entity->regid);
	g_free(entity);
}

G_DEFINE_AUTOPTR_CLEANUP_FUNC(FuCoswidFirmwareEntity, fu_coswid_firmware_entity_free)

static void
fu_coswid_firmware_link_free(FuCoswidFirmwareLink *link)
{
	g_free(link->href);
	g_free(link);
}

G_DEFINE_AUTOPTR_CLEANUP_FUNC(FuCoswidFirmwareLink, fu_coswid_firmware_link_free)

#ifdef HAVE_CBOR
G_DEFINE_AUTOPTR_CLEANUP_FUNC(cbor_item_t, cbor_intermediate_decref)

static gchar *
fu_coswid_firmware_strndup(cbor_item_t *item)
{
	if (!cbor_string_is_definite(item))
		return NULL;
	return g_strndup((const gchar *)cbor_string_handle(item), cbor_string_length(item));
}

static gboolean
fu_coswid_firmware_parse_meta(FuCoswidFirmware *self, cbor_item_t *item, GError **error)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	struct cbor_pair *pairs = cbor_map_handle(item);

	for (gsize i = 0; i < cbor_map_size(item); i++) {
		FuCoswidTag tag_id = cbor_get_uint8(pairs[i].key);
		if (tag_id == FU_COSWID_TAG_SUMMARY) {
			priv->summary = fu_coswid_firmware_strndup(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_COLLOQUIAL_VERSION) {
			priv->colloquial_version = fu_coswid_firmware_strndup(pairs[i].value);
		}
	}

	/* success */
	return TRUE;
}

static gboolean
fu_coswid_firmware_parse_link(FuCoswidFirmware *self, cbor_item_t *item, GError **error)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	struct cbor_pair *pairs = cbor_map_handle(item);
	g_autoptr(FuCoswidFirmwareLink) link = g_new0(FuCoswidFirmwareLink, 1);

	for (gsize i = 0; i < cbor_map_size(item); i++) {
		FuCoswidTag tag_id = cbor_get_uint8(pairs[i].key);
		if (tag_id == FU_COSWID_TAG_HREF) {
			link->href = fu_coswid_firmware_strndup(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_REL) {
			if (cbor_isa_negint(pairs[i].value))
				link->rel = (-1) - cbor_get_uint8(pairs[i].value);
			else
				link->rel = cbor_get_uint8(pairs[i].value);
		}
	}

	/* success */
	g_ptr_array_add(priv->links, g_steal_pointer(&link));
	return TRUE;
}

static gboolean
fu_coswid_firmware_parse_entity(FuCoswidFirmware *self, cbor_item_t *item, GError **error)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	struct cbor_pair *pairs = cbor_map_handle(item);
	guint entity_role_cnt = 0;
	g_autoptr(FuCoswidFirmwareEntity) entity = g_new0(FuCoswidFirmwareEntity, 1);

	for (gsize i = 0; i < cbor_map_size(item); i++) {
		FuCoswidTag tag_id = cbor_get_uint8(pairs[i].key);
		if (tag_id == FU_COSWID_TAG_ENTITY_NAME) {
			entity->name = fu_coswid_firmware_strndup(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_REG_ID) {
			entity->regid = fu_coswid_firmware_strndup(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_ROLE) {
			if (cbor_isa_uint(pairs[i].value)) {
				FuCoswidEntityRole role = cbor_get_uint8(pairs[i].value);
				entity->roles[entity_role_cnt++] = role;
			}
			for (guint j = 0; j < cbor_array_size(pairs[i].value); j++) {
				g_autoptr(cbor_item_t) value = cbor_array_get(pairs[i].value, j);
				FuCoswidEntityRole role = cbor_get_uint8(value);
				if (entity_role_cnt >= G_N_ELEMENTS(entity->roles)) {
					g_set_error_literal(error,
							    G_IO_ERROR,
							    G_IO_ERROR_INVALID_DATA,
							    "too many roles");
					return FALSE;
				}
				entity->roles[entity_role_cnt++] = role;
			}
		}
	}

	/* success */
	g_ptr_array_add(priv->entities, g_steal_pointer(&entity));
	return TRUE;
}
#endif

static gboolean
fu_coswid_firmware_parse(FuFirmware *firmware,
			 GBytes *fw,
			 gsize offset,
			 FwupdInstallFlags flags,
			 GError **error)
{
#ifdef HAVE_CBOR
	FuCoswidFirmware *self = FU_COSWID_FIRMWARE(firmware);
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	struct cbor_load_result result = {0x0};
	struct cbor_pair *pairs = NULL;
	g_autoptr(cbor_item_t) item = NULL;

	item = cbor_load(g_bytes_get_data(fw, NULL), g_bytes_get_size(fw), &result);
	if (item == NULL) {
		g_set_error(error,
			    FWUPD_ERROR,
			    FWUPD_ERROR_NOT_SUPPORTED,
			    "failed to parse CBOR at offset 0x%x: 0x%x",
			    (guint)result.error.position,
			    result.error.code);
		return FALSE;
	}
	fu_firmware_set_size(firmware, result.read);

	/* pretty-print the result */
	if (g_getenv("FWUPD_CBOR_VERBOSE") != NULL) {
		cbor_describe(item, stdout);
		fflush(stdout);
	}

	/* parse out anything interesting */
	pairs = cbor_map_handle(item);
	for (gsize i = 0; i < cbor_map_size(item); i++) {
		FuCoswidTag tag_id = cbor_get_uint8(pairs[i].key);

		/* identity can be specified as a string or in binary */
		if (tag_id == FU_COSWID_TAG_TAG_ID) {
			g_autofree gchar *str = NULL;
			if (cbor_isa_string(pairs[i].value)) {
				str = fu_coswid_firmware_strndup(pairs[i].value);
			} else if (cbor_isa_bytestring(pairs[i].value) &&
				   cbor_bytestring_length(pairs[i].value) == 16) {
				str = fwupd_guid_to_string(
				    (const fwupd_guid_t *)cbor_bytestring_handle(pairs[i].value),
				    FWUPD_GUID_FLAG_NONE);
			}
			if (str != NULL)
				fu_firmware_set_id(firmware, str);
		} else if (tag_id == FU_COSWID_TAG_SOFTWARE_NAME) {
			priv->product = fu_coswid_firmware_strndup(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_SOFTWARE_VERSION) {
			g_autofree gchar *str = fu_coswid_firmware_strndup(pairs[i].value);
			fu_firmware_set_version(firmware, str);
		} else if (tag_id == FU_COSWID_TAG_VERSION_SCHEME) {
			priv->version_scheme = cbor_get_uint16(pairs[i].value);
		} else if (tag_id == FU_COSWID_TAG_SOFTWARE_META) {
			if (!fu_coswid_firmware_parse_meta(self, pairs[i].value, error))
				return FALSE;
		} else if (tag_id == FU_COSWID_TAG_LINK) {
			for (guint j = 0; j < cbor_array_size(pairs[i].value); j++) {
				g_autoptr(cbor_item_t) value = cbor_array_get(pairs[i].value, j);
				if (!fu_coswid_firmware_parse_link(self, value, error))
					return FALSE;
			}
		} else if (tag_id == FU_COSWID_TAG_ENTITY) {
			for (guint j = 0; j < cbor_array_size(pairs[i].value); j++) {
				g_autoptr(cbor_item_t) value = cbor_array_get(pairs[i].value, j);
				if (!fu_coswid_firmware_parse_entity(self, value, error))
					return FALSE;
			}
		}
	}

	/* success */
	return TRUE;
#else
	g_set_error_literal(error,
			    G_IO_ERROR,
			    G_IO_ERROR_NOT_SUPPORTED,
			    "not compiled with CBOR support");
	return FALSE;
#endif
}

#ifdef HAVE_CBOR
static void
fu_coswid_firmware_write_tag_string(cbor_item_t *root, FuCoswidTag tag, const gchar *item)
{
	g_autoptr(cbor_item_t) key = cbor_build_uint8(tag);
	g_autoptr(cbor_item_t) val = cbor_build_string(item);
	cbor_map_add(root, (struct cbor_pair){.key = key, .value = val});
}

static void
fu_coswid_firmware_write_tag_bool(cbor_item_t *root, FuCoswidTag tag, gboolean item)
{
	g_autoptr(cbor_item_t) key = cbor_build_uint8(tag);
	g_autoptr(cbor_item_t) val = cbor_build_bool(item);
	cbor_map_add(root, (struct cbor_pair){.key = key, .value = val});
}

static void
fu_coswid_firmware_write_tag_uint16(cbor_item_t *root, FuCoswidTag tag, guint16 item)
{
	g_autoptr(cbor_item_t) key = cbor_build_uint8(tag);
	g_autoptr(cbor_item_t) val = cbor_build_uint16(item);
	cbor_map_add(root, (struct cbor_pair){.key = key, .value = val});
}

static void
fu_coswid_firmware_write_tag_int8(cbor_item_t *root, FuCoswidTag tag, gint8 item)
{
	g_autoptr(cbor_item_t) key = cbor_build_uint8(tag);
	g_autoptr(cbor_item_t) val = cbor_new_int8();
	if (item >= 0) {
		cbor_set_uint8(val, item);
	} else {
		cbor_set_uint8(val, 0xFF - item);
		cbor_mark_negint(val);
	}
	cbor_map_add(root, (struct cbor_pair){.key = key, .value = val});
}

static void
fu_coswid_firmware_write_tag_item(cbor_item_t *root, FuCoswidTag tag, cbor_item_t *item)
{
	g_autoptr(cbor_item_t) key = cbor_build_uint8(tag);
	cbor_map_add(root, (struct cbor_pair){.key = key, .value = item});
}
#endif

static GBytes *
fu_coswid_firmware_write(FuFirmware *firmware, GError **error)
{
#ifdef HAVE_CBOR
	FuCoswidFirmware *self = FU_COSWID_FIRMWARE(firmware);
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	gsize buflen;
	gsize bufsz = 0;
	g_autofree guchar *buf = NULL;
	g_autoptr(cbor_item_t) root = cbor_new_indefinite_map();
	g_autoptr(cbor_item_t) item_meta = cbor_new_indefinite_map();

	/* preallocate the map structure */
	fu_coswid_firmware_write_tag_string(root, FU_COSWID_TAG_LANG, "en-US");
	if (fu_firmware_get_id(firmware) != NULL) {
		fu_coswid_firmware_write_tag_string(root,
						    FU_COSWID_TAG_TAG_ID,
						    fu_firmware_get_id(firmware));
	}
	fu_coswid_firmware_write_tag_bool(root, FU_COSWID_TAG_CORPUS, TRUE);
	if (priv->product != NULL) {
		fu_coswid_firmware_write_tag_string(root,
						    FU_COSWID_TAG_SOFTWARE_NAME,
						    priv->product);
	}
	if (fu_firmware_get_version(firmware) != NULL) {
		fu_coswid_firmware_write_tag_string(root,
						    FU_COSWID_TAG_SOFTWARE_VERSION,
						    fu_firmware_get_version(firmware));
	}
	if (priv->version_scheme != FU_COSWID_VERSION_SCHEME_UNKNOWN) {
		fu_coswid_firmware_write_tag_uint16(root,
						    FU_COSWID_TAG_VERSION_SCHEME,
						    priv->version_scheme);
	}
	fu_coswid_firmware_write_tag_item(root, FU_COSWID_TAG_SOFTWARE_META, item_meta);
	fu_coswid_firmware_write_tag_string(item_meta, FU_COSWID_TAG_GENERATOR, PACKAGE_NAME);
	if (priv->summary != NULL) {
		fu_coswid_firmware_write_tag_string(item_meta,
						    FU_COSWID_TAG_SUMMARY,
						    priv->summary);
	}
	if (priv->colloquial_version != NULL) {
		fu_coswid_firmware_write_tag_string(item_meta,
						    FU_COSWID_TAG_COLLOQUIAL_VERSION,
						    priv->colloquial_version);
	}

	/* add entities */
	if (priv->entities->len > 0) {
		g_autoptr(cbor_item_t) item_entities = cbor_new_indefinite_array();
		for (guint i = 0; i < priv->entities->len; i++) {
			FuCoswidFirmwareEntity *entity = g_ptr_array_index(priv->entities, i);
			g_autoptr(cbor_item_t) item_entity = cbor_new_indefinite_map();
			g_autoptr(cbor_item_t) item_roles = cbor_new_indefinite_array();
			if (entity->name != NULL) {
				fu_coswid_firmware_write_tag_string(item_entity,
								    FU_COSWID_TAG_ENTITY_NAME,
								    entity->name);
			}
			if (entity->regid != NULL) {
				fu_coswid_firmware_write_tag_string(item_entity,
								    FU_COSWID_TAG_REG_ID,
								    entity->regid);
			}
			for (guint j = 0; entity->roles[j] != FU_COSWID_ENTITY_ROLE_UNKNOWN; j++) {
				g_autoptr(cbor_item_t) item_role =
				    cbor_build_uint8(entity->roles[j]);
				cbor_array_push(item_roles, item_role);
			}
			fu_coswid_firmware_write_tag_item(item_entity,
							  FU_COSWID_TAG_ROLE,
							  item_roles);
			cbor_array_push(item_entities, item_entity);
		}
		fu_coswid_firmware_write_tag_item(root, FU_COSWID_TAG_ENTITY, item_entities);
	}

	/* add links */
	if (priv->links->len > 0) {
		g_autoptr(cbor_item_t) item_links = cbor_new_indefinite_array();
		for (guint i = 0; i < priv->links->len; i++) {
			FuCoswidFirmwareLink *link = g_ptr_array_index(priv->links, i);
			g_autoptr(cbor_item_t) item_link = cbor_new_indefinite_map();
			if (link->href != NULL) {
				fu_coswid_firmware_write_tag_string(item_link,
								    FU_COSWID_TAG_HREF,
								    link->href);
			}
			fu_coswid_firmware_write_tag_int8(item_link, FU_COSWID_TAG_REL, link->rel);
			cbor_array_push(item_links, item_link);
		}
		fu_coswid_firmware_write_tag_item(root, FU_COSWID_TAG_LINK, item_links);
	}

	/* serialize */
	buflen = cbor_serialize_alloc(root, &buf, &bufsz);
	if (buflen > bufsz) {
		g_set_error_literal(error,
				    G_IO_ERROR,
				    G_IO_ERROR_NOT_SUPPORTED,
				    "CBOR allocation failure");
		return NULL;
	}
	return g_bytes_new(buf, buflen);
#else
	g_set_error_literal(error,
			    G_IO_ERROR,
			    G_IO_ERROR_NOT_SUPPORTED,
			    "not compiled with CBOR support");
	return NULL;
#endif
}

static gboolean
fu_coswid_firmware_build_entity(FuCoswidFirmware *self, XbNode *n, GError **error)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	const gchar *tmp;
	guint entity_role_cnt = 0;
	FuCoswidEntityRole role;
	g_autoptr(GPtrArray) roles = NULL;
	g_autoptr(FuCoswidFirmwareEntity) entity = g_new0(FuCoswidFirmwareEntity, 1);

	/* these are required */
	tmp = xb_node_query_text(n, "name", error);
	if (tmp == NULL)
		return FALSE;
	entity->name = g_strdup(tmp);
	tmp = xb_node_query_text(n, "regid", error);
	if (tmp == NULL)
		return FALSE;
	entity->regid = g_strdup(tmp);

	/* optional */
	roles = xb_node_query(n, "role", 0, NULL);
	if (roles != NULL) {
		for (guint i = 0; i < roles->len; i++) {
			XbNode *c = g_ptr_array_index(roles, i);
			tmp = xb_node_get_text(c);
			role = fu_coswid_entity_role_from_string(tmp);
			if (role == FU_COSWID_ENTITY_ROLE_UNKNOWN) {
				g_set_error(error,
					    G_IO_ERROR,
					    G_IO_ERROR_INVALID_DATA,
					    "failed to parse entity role %s",
					    tmp);
				return FALSE;
			}
			if (entity_role_cnt >= G_N_ELEMENTS(entity->roles)) {
				g_set_error_literal(error,
						    G_IO_ERROR,
						    G_IO_ERROR_INVALID_DATA,
						    "too many roles");
				return FALSE;
			}
			entity->roles[entity_role_cnt++] = role;
		}
	}

	/* success */
	g_ptr_array_add(priv->entities, g_steal_pointer(&entity));
	return TRUE;
}

static gboolean
fu_coswid_firmware_build_link(FuCoswidFirmware *self, XbNode *n, GError **error)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	const gchar *tmp;
	g_autoptr(FuCoswidFirmwareLink) link = g_new0(FuCoswidFirmwareLink, 1);

	/* required */
	tmp = xb_node_query_text(n, "href", error);
	if (tmp == NULL)
		return FALSE;
	link->href = g_strdup(tmp);

	/* optional */
	tmp = xb_node_query_text(n, "rel", NULL);
	if (tmp != NULL) {
		link->rel = fu_coswid_link_rel_from_string(tmp);
		if (link->rel == FU_COSWID_LINK_REL_UNKNOWN) {
			g_set_error(error,
				    G_IO_ERROR,
				    G_IO_ERROR_INVALID_DATA,
				    "failed to parse link rel %s",
				    tmp);
			return FALSE;
		}
	}

	/* success */
	g_ptr_array_add(priv->links, g_steal_pointer(&link));
	return TRUE;
}

static gboolean
fu_coswid_firmware_build(FuFirmware *firmware, XbNode *n, GError **error)
{
	FuCoswidFirmware *self = FU_COSWID_FIRMWARE(firmware);
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	const gchar *tmp;
	g_autoptr(GPtrArray) links = NULL;
	g_autoptr(GPtrArray) entities = NULL;

	/* simple properties */
	tmp = xb_node_query_text(n, "product", NULL);
	if (tmp != NULL)
		priv->product = g_strdup(tmp);
	tmp = xb_node_query_text(n, "summary", NULL);
	if (tmp != NULL)
		priv->summary = g_strdup(tmp);
	tmp = xb_node_query_text(n, "colloquial_version", NULL);
	if (tmp != NULL)
		priv->colloquial_version = g_strdup(tmp);

	tmp = xb_node_query_text(n, "version_scheme", NULL);
	if (tmp != NULL) {
		priv->version_scheme = fu_coswid_version_scheme_from_string(tmp);
		if (priv->version_scheme == FU_COSWID_VERSION_SCHEME_UNKNOWN) {
			g_set_error(error,
				    G_IO_ERROR,
				    G_IO_ERROR_INVALID_DATA,
				    "failed to parse version_scheme %s",
				    tmp);
			return FALSE;
		}
	}

	/* multiple links allowed */
	links = xb_node_query(n, "link", 0, NULL);
	if (links != NULL) {
		for (guint i = 0; i < links->len; i++) {
			XbNode *c = g_ptr_array_index(links, i);
			if (!fu_coswid_firmware_build_link(self, c, error))
				return FALSE;
		}
	}

	/* multiple entities allowed */
	entities = xb_node_query(n, "entity", 0, NULL);
	if (entities != NULL) {
		for (guint i = 0; i < entities->len; i++) {
			XbNode *c = g_ptr_array_index(entities, i);
			if (!fu_coswid_firmware_build_entity(self, c, error))
				return FALSE;
		}
	}

	/* success */
	return TRUE;
}

static void
fu_coswid_firmware_export(FuFirmware *firmware, FuFirmwareExportFlags flags, XbBuilderNode *bn)
{
	FuCoswidFirmware *self = FU_COSWID_FIRMWARE(firmware);
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	if (priv->version_scheme != FU_COSWID_VERSION_SCHEME_UNKNOWN) {
		fu_xmlb_builder_insert_kv(bn,
					  "version_scheme",
					  fu_coswid_version_scheme_to_string(priv->version_scheme));
	}
	fu_xmlb_builder_insert_kv(bn, "product", priv->product);
	fu_xmlb_builder_insert_kv(bn, "summary", priv->summary);
	fu_xmlb_builder_insert_kv(bn, "colloquial_version", priv->colloquial_version);
	for (guint i = 0; i < priv->links->len; i++) {
		FuCoswidFirmwareLink *link = g_ptr_array_index(priv->links, i);
		g_autoptr(XbBuilderNode) bc = xb_builder_node_insert(bn, "link", NULL);
		fu_xmlb_builder_insert_kv(bc, "href", link->href);
		if (link->rel != FU_COSWID_LINK_REL_UNKNOWN) {
			fu_xmlb_builder_insert_kv(bc,
						  "rel",
						  fu_coswid_link_rel_to_string(link->rel));
		}
	}
	for (guint i = 0; i < priv->entities->len; i++) {
		FuCoswidFirmwareEntity *entity = g_ptr_array_index(priv->entities, i);
		g_autoptr(XbBuilderNode) bc = xb_builder_node_insert(bn, "entity", NULL);
		fu_xmlb_builder_insert_kv(bc, "name", entity->name);
		fu_xmlb_builder_insert_kv(bc, "regid", entity->regid);
		for (guint j = 0; entity->roles[j] != FU_COSWID_ENTITY_ROLE_UNKNOWN; j++) {
			fu_xmlb_builder_insert_kv(
			    bc,
			    "role",
			    fu_coswid_entity_role_to_string(entity->roles[j]));
		}
	}
}

static void
fu_coswid_firmware_init(FuCoswidFirmware *self)
{
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);
	priv->version_scheme = FU_COSWID_VERSION_SCHEME_SEMVER;
	priv->links = g_ptr_array_new_with_free_func((GDestroyNotify)fu_coswid_firmware_link_free);
	priv->entities =
	    g_ptr_array_new_with_free_func((GDestroyNotify)fu_coswid_firmware_entity_free);
}

static void
fu_coswid_firmware_finalize(GObject *object)
{
	FuCoswidFirmware *self = FU_COSWID_FIRMWARE(object);
	FuCoswidFirmwarePrivate *priv = GET_PRIVATE(self);

	g_free(priv->product);
	g_free(priv->summary);
	g_free(priv->colloquial_version);
	g_ptr_array_unref(priv->links);
	g_ptr_array_unref(priv->entities);

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

static void
fu_coswid_firmware_class_init(FuCoswidFirmwareClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS(klass);
	FuFirmwareClass *klass_firmware = FU_FIRMWARE_CLASS(klass);
	object_class->finalize = fu_coswid_firmware_finalize;
	klass_firmware->parse = fu_coswid_firmware_parse;
	klass_firmware->write = fu_coswid_firmware_write;
	klass_firmware->build = fu_coswid_firmware_build;
	klass_firmware->export = fu_coswid_firmware_export;
}

/**
 * fu_coswid_firmware_new:
 *
 * Creates a new #FuFirmware of sub type coSWID
 *
 * Since: 1.8.0
 **/
FuFirmware *
fu_coswid_firmware_new(void)
{
	return FU_FIRMWARE(g_object_new(FU_TYPE_COSWID_FIRMWARE, NULL));
}