cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

init.c (1856B)

      1/*
      2 * QEMU Crypto initialization
      3 *
      4 * Copyright (c) 2015 Red Hat, Inc.
      5 *
      6 * This library is free software; you can redistribute it and/or
      7 * modify it under the terms of the GNU Lesser General Public
      8 * License as published by the Free Software Foundation; either
      9 * version 2.1 of the License, or (at your option) any later version.
     10 *
     11 * This library is distributed in the hope that it will be useful,
     12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14 * Lesser General Public License for more details.
     15 *
     16 * You should have received a copy of the GNU Lesser General Public
     17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18 *
     19 */
     20
     21#include "qemu/osdep.h"
     22#include "crypto/init.h"
     23#include "qapi/error.h"
     24#include "qemu/thread.h"
     25
     26#ifdef CONFIG_GNUTLS
     27#include <gnutls/gnutls.h>
     28#include <gnutls/crypto.h>
     29#endif
     30
     31#ifdef CONFIG_GCRYPT
     32#include <gcrypt.h>
     33#endif
     34
     35#include "crypto/random.h"
     36
     37/* #define DEBUG_GNUTLS */
     38#ifdef DEBUG_GNUTLS
     39static void qcrypto_gnutls_log(int level, const char *str)
     40{
     41    fprintf(stderr, "%d: %s", level, str);
     42}
     43#endif
     44
     45int qcrypto_init(Error **errp)
     46{
     47#ifdef CONFIG_GNUTLS
     48    int ret;
     49    ret = gnutls_global_init();
     50    if (ret < 0) {
     51        error_setg(errp,
     52                   "Unable to initialize GNUTLS library: %s",
     53                   gnutls_strerror(ret));
     54        return -1;
     55    }
     56#ifdef DEBUG_GNUTLS
     57    gnutls_global_set_log_level(10);
     58    gnutls_global_set_log_function(qcrypto_gnutls_log);
     59#endif
     60#endif
     61
     62#ifdef CONFIG_GCRYPT
     63    if (!gcry_check_version(NULL)) {
     64        error_setg(errp, "Unable to initialize gcrypt");
     65        return -1;
     66    }
     67    gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
     68#endif
     69
     70    if (qcrypto_random_init(errp) < 0) {
     71        return -1;
     72    }
     73
     74    return 0;
     75}