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1 | /* |
2 | * QEMU Crypto random number provider | |
3 | * | |
4 | * Copyright (c) 2015-2016 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 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 | ||
23 | #include "crypto/random.h" | |
e688df6b | 24 | #include "qapi/error.h" |
b917da4c DB |
25 | |
26 | #include <gnutls/gnutls.h> | |
27 | #include <gnutls/crypto.h> | |
28 | ||
29 | int qcrypto_random_bytes(uint8_t *buf, | |
30 | size_t buflen, | |
31 | Error **errp) | |
32 | { | |
33 | int ret; | |
34 | ||
35 | ret = gnutls_rnd(GNUTLS_RND_RANDOM, buf, buflen); | |
36 | ||
37 | if (ret < 0) { | |
38 | error_setg(errp, "Cannot get random bytes: %s", | |
39 | gnutls_strerror(ret)); | |
40 | return -1; | |
41 | } | |
42 | ||
43 | return 0; | |
44 | } | |
a3727816 GMI |
45 | |
46 | ||
47 | int qcrypto_random_init(Error **errp G_GNUC_UNUSED) { return 0; } |