util/smmstoretool/vs.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #ifndef SMMSTORETOOL__VS_H__
   4 #define SMMSTORETOOL__VS_H__
   5
   6 #include <stdbool.h>
   7
   8 #include "udk2017.h"
   9 #include "utils.h"
  10
  11 // Variable store is part of firmware volume.  This unit doesn't deal with its
  12 // header only with data that follows.
  13
  14 struct var_t {
  15         uint8_t reserved;
  16         uint32_t attrs;
  17         EFI_GUID guid;
  18         CHAR16 *name;
  19         size_t name_size; // in bytes
  20         uint8_t *data;
  21         size_t data_size; // in bytes
  22         struct var_t *next;
  23 };
  24
  25 struct var_store_t {
  26         struct var_t *vars;
  27         bool auth_vars;
  28 };
  29
  30 struct var_store_t vs_load(struct mem_range_t vs_data, bool auth_vars);
  31
  32 bool vs_store(struct var_store_t *vs, struct mem_range_t vs_data);
  33
  34 struct var_t *vs_new_var(struct var_store_t *vs);
  35
  36 struct var_t *vs_find(struct var_store_t *vs,
  37                       const char name[],
  38                       const EFI_GUID *guid);
  39
  40 void vs_delete(struct var_store_t *vs, struct var_t *var);
  41
  42 void vs_free(struct var_store_t *vs);
  43
  44 #endif // SMMSTORETOOL__VS_H__