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https://git.proxmox.com/git/fwupd
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63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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* Copyright (C) 2020 Richard Hughes <richard@hughsie.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 "fu-plugin-vfuncs.h"
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#include "fu-hash.h"
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#include "fu-acpi-dmar.h"
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void
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fu_plugin_init (FuPlugin *plugin)
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{
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fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
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}
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void
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fu_plugin_add_security_attrs (FuPlugin *plugin, FuSecurityAttrs *attrs)
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{
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g_autofree gchar *fn = NULL;
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g_autofree gchar *path = NULL;
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g_autoptr(FuAcpiDmar) dmar = NULL;
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g_autoptr(FwupdSecurityAttr) attr = NULL;
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g_autoptr(GBytes) blob = NULL;
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g_autoptr(GError) error_local = NULL;
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/* only Intel */
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if (!fu_common_is_cpu_intel ())
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return;
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/* create attr */
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attr = fwupd_security_attr_new ("org.uefi.ACPI.Dmar");
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fwupd_security_attr_set_plugin (attr, fu_plugin_get_name (plugin));
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fwupd_security_attr_set_level (attr, FWUPD_SECURITY_ATTR_LEVEL_THEORETICAL);
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fwupd_security_attr_set_name (attr, "Pre-boot kernel DMA protection");
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fu_security_attrs_append (attrs, attr);
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/* load DMAR table */
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path = fu_common_get_path (FU_PATH_KIND_ACPI_TABLES);
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fn = g_build_filename (path, "DMAR", NULL);
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blob = fu_common_get_contents_bytes (fn, &error_local);
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if (blob == NULL) {
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g_warning ("failed to load %s: %s", fn, error_local->message);
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fwupd_security_attr_set_result (attr, "Could not load DMAR");
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return;
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}
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dmar = fu_acpi_dmar_new (blob, &error_local);
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if (dmar == NULL) {
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g_warning ("failed to parse %s: %s", fn, error_local->message);
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fwupd_security_attr_set_result (attr, "Could not parse DMAR");
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return;
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}
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if (!fu_acpi_dmar_get_opt_in (dmar)) {
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fwupd_security_attr_set_result (attr, "Unavailable");
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return;
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}
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/* success */
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fwupd_security_attr_add_flag (attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
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}
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