src/boot/efi/util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /*
   3  * This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the GNU Lesser General Public License as published by
   5  * the Free Software Foundation; either version 2.1 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org>
  14  * Copyright (C) 2012 Harald Hoyer <harald@redhat.com>
  15  */
  16
  17 #ifndef __SDBOOT_UTIL_H
  18 #define __SDBOOT_UTIL_H
  19
  20 #include <efi.h>
  21 #include <efilib.h>
  22
  23 #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
  24
  25 static inline const CHAR16 *yes_no(BOOLEAN b) {
  26         return b ? L"yes" : L"no";
  27 }
  28
  29 EFI_STATUS parse_boolean(CHAR8 *v, BOOLEAN *b);
  30
  31 UINT64 ticks_read(void);
  32 UINT64 ticks_freq(void);
  33 UINT64 time_usec(void);
  34
  35 EFI_STATUS efivar_set(CHAR16 *name, CHAR16 *value, BOOLEAN persistent);
  36 EFI_STATUS efivar_set_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent);
  37 EFI_STATUS efivar_set_int(CHAR16 *name, UINTN i, BOOLEAN persistent);
  38 VOID efivar_set_time_usec(CHAR16 *name, UINT64 usec);
  39
  40 EFI_STATUS efivar_get(CHAR16 *name, CHAR16 **value);
  41 EFI_STATUS efivar_get_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size);
  42 EFI_STATUS efivar_get_int(CHAR16 *name, UINTN *i);
  43
  44 CHAR8 *strchra(CHAR8 *s, CHAR8 c);
  45 CHAR16 *stra_to_path(CHAR8 *stra);
  46 CHAR16 *stra_to_str(CHAR8 *stra);
  47
  48 INTN file_read(EFI_FILE_HANDLE dir, CHAR16 *name, UINTN off, UINTN size, CHAR8 **content);
  49 #endif