src/crypto/random.h

   1 /*
   2  * Random number generator
   3  * Copyright (c) 2010-2011, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef RANDOM_H
  16 #define RANDOM_H
  17
  18 #ifdef CONFIG_NO_RANDOM_POOL
  19 #define random_init(e) do { } while (0)
  20 #define random_deinit() do { } while (0)
  21 #define random_add_randomness(b, l) do { } while (0)
  22 #define random_get_bytes(b, l) os_get_random((b), (l))
  23 #define random_pool_ready() 1
  24 #define random_mark_pool_ready() do { } while (0)
  25 #else /* CONFIG_NO_RANDOM_POOL */
  26 void random_init(const char *entropy_file);
  27 void random_deinit(void);
  28 void random_add_randomness(const void *buf, size_t len);
  29 int random_get_bytes(void *buf, size_t len);
  30 int random_pool_ready(void);
  31 void random_mark_pool_ready(void);
  32 #endif /* CONFIG_NO_RANDOM_POOL */
  33
  34 #endif /* RANDOM_H */