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ddbb0d09 DB |
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 | |
b7cbb874 | 9 | * version 2.1 of the License, or (at your option) any later version. |
ddbb0d09 DB |
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 | ||
42f7a448 | 21 | #include "qemu/osdep.h" |
ddbb0d09 | 22 | #include "crypto/init.h" |
da34e65c | 23 | #include "qapi/error.h" |
62893b67 | 24 | #include "qemu/thread.h" |
ddbb0d09 DB |
25 | |
26 | #ifdef CONFIG_GNUTLS | |
27 | #include <gnutls/gnutls.h> | |
28 | #include <gnutls/crypto.h> | |
91bfcdb0 | 29 | #endif |
ddbb0d09 | 30 | |
91bfcdb0 | 31 | #ifdef CONFIG_GCRYPT |
62893b67 DB |
32 | #include <gcrypt.h> |
33 | #endif | |
34 | ||
a3727816 GMI |
35 | #include "crypto/random.h" |
36 | ||
ddbb0d09 | 37 | /* #define DEBUG_GNUTLS */ |
ddbb0d09 DB |
38 | #ifdef DEBUG_GNUTLS |
39 | static void qcrypto_gnutls_log(int level, const char *str) | |
40 | { | |
41 | fprintf(stderr, "%d: %s", level, str); | |
42 | } | |
43 | #endif | |
44 | ||
45 | int qcrypto_init(Error **errp) | |
46 | { | |
91bfcdb0 | 47 | #ifdef CONFIG_GNUTLS |
ddbb0d09 DB |
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 | |
91bfcdb0 | 60 | #endif |
62893b67 | 61 | |
91bfcdb0 | 62 | #ifdef CONFIG_GCRYPT |
d6cca8e1 | 63 | if (!gcry_check_version(NULL)) { |
62893b67 DB |
64 | error_setg(errp, "Unable to initialize gcrypt"); |
65 | return -1; | |
66 | } | |
62893b67 DB |
67 | gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0); |
68 | #endif | |
69 | ||
a3727816 GMI |
70 | if (qcrypto_random_init(errp) < 0) { |
71 | return -1; | |
72 | } | |
73 | ||
ddbb0d09 DB |
74 | return 0; |
75 | } |