mirror of
https://git.proxmox.com/git/fwupd
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116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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* Copyright (C) 2019 9elements Agency GmbH <patrick.rudolph@9elements.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <string.h>
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#include <stdio.h>
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#include "fu-plugin-coreboot.h"
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/**
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* FU_QUIRKS_COREBOOT_VERSION:
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* @key: The SMBIOS manufacturer name
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* @value: One of the following: "lenovo-cbet-prefix"
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*
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* "lenovo-cbet-prefix" quirk:
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* The thinkpad_acpi kernel module requires a specific pattern
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* in the DMI version string. To satisfy those requirements
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* coreboot adds the CBETxxxx prefix to the DMI version string
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* on all Lenovo devices. The prefix isn't present in the
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* version string found in coreboot tables, or on other
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* coreboot enabled devices.
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*
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* Since: 1.3.5
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*/
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#define FU_QUIRKS_COREBOOT_VERSION "CorebootVersionQuirks"
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#define FU_QUIRK_CBET_PREFIX "lenovo-cbet-prefix"
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/* Tries to convert the coreboot version string to a triplet string.
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* Returns NULL on error. */
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gchar *
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fu_plugin_coreboot_version_string_to_triplet (const gchar *coreboot_version,
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GError **error)
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{
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guint cb_major = 0;
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guint cb_minor = 0;
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guint cb_build = 0;
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gint rc;
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rc = sscanf (coreboot_version, "%u.%u-%u", &cb_major, &cb_minor, &cb_build);
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if (rc < 0) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"Failed to parse firmware version");
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return NULL;
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}
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/* Sanity check */
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if (cb_major == 0) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"Invalid firmware version");
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return NULL;
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}
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return g_strdup_printf ("%u.%u.%u", cb_major, cb_minor, cb_build);
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}
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/* convert firmware type to user friendly string representation */
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gchar *
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fu_plugin_coreboot_get_name_for_type (FuPlugin *plugin,
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const gchar *vboot_partition)
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{
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GString *display_name;
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if (vboot_partition != NULL) {
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display_name = g_string_new (vboot_partition);
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g_string_prepend (display_name, ", VBOOT partition ");
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} else {
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display_name = g_string_new ("");
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}
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g_string_prepend (display_name, "coreboot System Firmware");
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return g_string_free (display_name, FALSE);
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}
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/* Returns the version string with possible quirks applied */
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const gchar *
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fu_plugin_coreboot_get_version_string (FuPlugin *plugin)
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{
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const gchar *version;
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const gchar *manufacturer;
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const gchar *quirk = NULL;
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version = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_BIOS_VERSION);
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if (version == NULL)
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return NULL;
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manufacturer = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_MANUFACTURER);
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if (manufacturer != NULL) {
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g_autofree gchar *group = NULL;
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/* any quirks match */
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group = g_strdup_printf ("SmbiosManufacturer=%s", manufacturer);
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quirk = fu_plugin_lookup_quirk_by_id (plugin, group,
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FU_QUIRKS_COREBOOT_VERSION);
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}
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if (quirk == NULL)
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return version;
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if (g_strcmp0(quirk, FU_QUIRK_CBET_PREFIX) == 0) {
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if (strlen (version) > 9 && g_str_has_prefix (version, "CBET"))
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version += 9;
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return version;
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}
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return version;
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}
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