76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
|
|
* QEMU Crypto initialization
|
|
*
|
|
* Copyright (c) 2015 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "crypto/init.h"
|
|
#include "qapi/error.h"
|
|
#include "qemu/thread.h"
|
|
|
|
#ifdef CONFIG_GNUTLS
|
|
#include <gnutls/gnutls.h>
|
|
#include <gnutls/crypto.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_GCRYPT
|
|
#include <gcrypt.h>
|
|
#endif
|
|
|
|
#include "crypto/random.h"
|
|
|
|
/* #define DEBUG_GNUTLS */
|
|
#ifdef DEBUG_GNUTLS
|
|
static void qcrypto_gnutls_log(int level, const char *str)
|
|
{
|
|
fprintf(stderr, "%d: %s", level, str);
|
|
}
|
|
#endif
|
|
|
|
int qcrypto_init(Error **errp)
|
|
{
|
|
#ifdef CONFIG_GNUTLS
|
|
int ret;
|
|
ret = gnutls_global_init();
|
|
if (ret < 0) {
|
|
error_setg(errp,
|
|
"Unable to initialize GNUTLS library: %s",
|
|
gnutls_strerror(ret));
|
|
return -1;
|
|
}
|
|
#ifdef DEBUG_GNUTLS
|
|
gnutls_global_set_log_level(10);
|
|
gnutls_global_set_log_function(qcrypto_gnutls_log);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_GCRYPT
|
|
if (!gcry_check_version(NULL)) {
|
|
error_setg(errp, "Unable to initialize gcrypt");
|
|
return -1;
|
|
}
|
|
gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
|
|
#endif
|
|
|
|
if (qcrypto_random_init(errp) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|