/*

 * Copyright 2021 Richard Hughes <richard@hughsie.com>

 *

 * SPDX-License-Identifier: LGPL-2.1-or-later

 */

#define G_LOG_DOMAIN "FuContext"

#include "config.h"

#include "fu-context-private.h"

#include "fu-hwids-private.h"

#include "fu-path.h"

#include "fu-smbios-struct.h"

#include "fu-string.h"

gboolean

fu_hwids_dmi_setup(FuContext *ctx, FuHwids *self, GError **error)

{

  g_autofree gchar *path = fu_path_from_kind(FU_PATH_KIND_SYSFSDIR_DMI);

  struct {

    const gchar *hwid;

    const gchar *key;

  } map[] = {{FU_HWIDS_KEY_BASEBOARD_MANUFACTURER, "board_vendor"},

       {FU_HWIDS_KEY_BASEBOARD_PRODUCT, "board_name"},

       {FU_HWIDS_KEY_BIOS_VENDOR, "bios_vendor"},

       {FU_HWIDS_KEY_BIOS_VERSION, "bios_version"},

       {FU_HWIDS_KEY_FAMILY, "product_family"},

       {FU_HWIDS_KEY_MANUFACTURER, "sys_vendor"},

       {FU_HWIDS_KEY_PRODUCT_NAME, "product_name"},

       {FU_HWIDS_KEY_PRODUCT_SKU, "product_sku"},

       {FU_HWIDS_KEY_ENCLOSURE_KIND, "chassis_type"},

       {NULL, NULL}};

  /* the values the kernel parsed; these are world-readable */

  if (!g_file_test(path, G_FILE_TEST_IS_DIR)) {

    g_set_error(error, FWUPD_ERROR, FWUPD_ERROR_NOT_SUPPORTED, "no %s", path);

    return FALSE;

  }

  for (guint i = 0; map[i].key != NULL; i++) {

    gsize bufsz = 0;

    g_autofree gchar *buf = NULL;

    g_autofree gchar *fn = g_build_filename(path, map[i].key, NULL);

    g_autoptr(GError) error_local = NULL;

    if (!g_file_get_contents(fn, &buf, &bufsz, &error_local)) {

      g_debug("unable to read SMBIOS data from %s: %s", fn, error_local->message);

      continue;

    }

    if (bufsz == 0)

      continue;

    /* trim trailing newline added by kernel */

    if (buf[bufsz - 1] == '\n')

      buf[bufsz - 1] = 0;

    fu_hwids_add_value(self, map[i].hwid, buf);

    if (g_strcmp0(map[i].hwid, FU_HWIDS_KEY_ENCLOSURE_KIND) == 0) {

      guint64 val = 0;

      if (!fu_strtoull(buf,

           &val,

           FU_SMBIOS_CHASSIS_KIND_OTHER,

           FU_SMBIOS_CHASSIS_KIND_LAST,

           FU_INTEGER_BASE_AUTO,

           &error_local)) {

        g_warning("ignoring enclosure kind %s", buf);

        continue;

      }

      fu_context_set_chassis_kind(ctx, val);

    }

  }

  /* success */

  return TRUE;

}