Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210330' into...
[qemu/ar7.git] / crypto / random-gnutls.c
blob96af91aee4a1cb3be8396c68320bc29ea88f94f1
1 /*
2 * QEMU Crypto random number provider
4 * Copyright (c) 2015-2016 Red Hat, Inc.
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.
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.
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/>.
21 #include "qemu/osdep.h"
23 #include "crypto/random.h"
24 #include "qapi/error.h"
26 #include <gnutls/gnutls.h>
27 #include <gnutls/crypto.h>
29 int qcrypto_random_bytes(void *buf,
30 size_t buflen,
31 Error **errp)
33 int ret;
35 ret = gnutls_rnd(GNUTLS_RND_RANDOM, buf, buflen);
37 if (ret < 0) {
38 error_setg(errp, "Cannot get random bytes: %s",
39 gnutls_strerror(ret));
40 return -1;
43 return 0;
47 int qcrypto_random_init(Error **errp G_GNUC_UNUSED) { return 0; }