crypto/random-none.c

   1 /*
   2  * QEMU Crypto "none" random number provider
   3  *
   4  * Copyright (c) 2020 Marek Marczykowski-Górecki
   5  *                      <marmarek@invisiblethingslab.com>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 #include "qemu/osdep.h"
  23
  24 #include "crypto/random.h"
  25 #include "qapi/error.h"
  26
  27 int qcrypto_random_init(Error **errp)
  28 {
  29     return 0;
  30 }
  31
  32 int qcrypto_random_bytes(void *buf,
  33                          size_t buflen,
  34                          Error **errp)
  35 {
  36     error_setg(errp, "Random bytes not available with \"none\" rng");
  37     return -1;
  38 }