include/efi_rng.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2019, Linaro Limited
   4  */
   5
   6 #if !defined _EFI_RNG_H_
   7 #define _EFI_RNG_H_
   8
   9 #include <efi.h>
  10 #include <efi_api.h>
  11
  12 /* EFI random number generation protocol related GUID definitions */
  13 #define EFI_RNG_ALGORITHM_RAW \
  14         EFI_GUID(0xe43176d7, 0xb6e8, 0x4827, 0xb7, 0x84, \
  15                  0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61)
  16
  17 struct efi_rng_protocol {
  18         efi_status_t (EFIAPI *get_info)(struct efi_rng_protocol *protocol,
  19                                         efi_uintn_t *rng_algorithm_list_size,
  20                                         efi_guid_t *rng_algorithm_list);
  21         efi_status_t (EFIAPI *get_rng)(struct efi_rng_protocol *protocol,
  22                                        efi_guid_t *rng_algorithm,
  23                                        efi_uintn_t rng_value_length, uint8_t *rng_value);
  24 };
  25
  26 efi_status_t platform_get_rng_device(struct udevice **dev);
  27
  28 #endif /* _EFI_RNG_H_ */