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71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2018 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 <efivar.h>
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#include "fu-uefi-common.h"
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gboolean
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fu_uefi_secure_boot_enabled (void)
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{
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gint rc;
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gsize data_size = 0;
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guint32 attributes = 0;
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g_autofree guint8 *data = NULL;
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rc = efi_get_variable (efi_guid_global, "SecureBoot", &data, &data_size, &attributes);
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if (rc < 0)
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return FALSE;
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if (data_size >= 1 && data[0] & 1)
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return TRUE;
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return FALSE;
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}
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static gint
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fu_uefi_strcmp_sort_cb (gconstpointer a, gconstpointer b)
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{
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const gchar *stra = *((const gchar **) a);
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const gchar *strb = *((const gchar **) b);
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return g_strcmp0 (stra, strb);
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}
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GPtrArray *
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fu_uefi_get_esrt_entry_paths (const gchar *esrt_path, GError **error)
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{
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GPtrArray *entries = g_ptr_array_new_with_free_func (g_free);
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const gchar *fn;
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g_autofree gchar *esrt_entries = NULL;
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g_autoptr(GDir) dir = NULL;
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/* search ESRT */
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esrt_entries = g_build_filename (esrt_path, "entries", NULL);
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dir = g_dir_open (esrt_entries, 0, error);
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if (dir == NULL)
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return NULL;
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while ((fn = g_dir_read_name (dir)) != NULL)
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g_ptr_array_add (entries, g_build_filename (esrt_entries, fn, NULL));
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/* sort by name */
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g_ptr_array_sort (entries, fu_uefi_strcmp_sort_cb);
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return entries;
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}
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guint64
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fu_uefi_read_file_as_uint64 (const gchar *path, const gchar *attr_name)
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{
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g_autofree gchar *data = NULL;
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g_autofree gchar *fn = g_build_filename (path, attr_name, NULL);
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if (!g_file_get_contents (fn, &data, NULL, NULL))
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return 0x0;
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if (g_str_has_prefix (data, "0x"))
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return g_ascii_strtoull (data + 2, NULL, 16);
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return g_ascii_strtoull (data, NULL, 10);
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}
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