board/gdsys/a38x/hre.h

   1 /*
   2  * (C) Copyright 2013
   3  * Reinhard Pfau, Guntermann & Drunck GmbH, reinhard.pfau@gdsys.cc
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef __HRE_H
   9 #define __HRE_H
  10
  11 struct key_program {
  12         uint32_t magic;
  13         uint32_t code_crc;
  14         uint32_t code_size;
  15         uint8_t code[];
  16 };
  17
  18 struct h_reg {
  19         bool valid;
  20         uint8_t digest[20];
  21 };
  22
  23 /* CCDM specific contants */
  24 enum {
  25         /* NV indices */
  26         NV_COMMON_DATA_INDEX    = 0x40000001,
  27         /* magics for key blob chains */
  28         MAGIC_KEY_PROGRAM       = 0x68726500,
  29         MAGIC_HMAC              = 0x68616300,
  30         MAGIC_END_OF_CHAIN      = 0x00000000,
  31         /* sizes */
  32         NV_COMMON_DATA_MIN_SIZE = 3 * sizeof(uint64_t) + 2 * sizeof(uint16_t),
  33 };
  34
  35 int hre_verify_program(struct key_program *prg);
  36 int hre_run_program(const uint8_t *code, size_t code_size);
  37
  38 #endif /* __HRE_H */