xref: /openbmc/qemu/include/crypto/tlscredsanon.h (revision 2038f8c8)
1 /*
2  * QEMU crypto TLS anonymous credential support
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 #ifndef QCRYPTO_TLSCREDSANON_H
22 #define QCRYPTO_TLSCREDSANON_H
23 
24 #include "crypto/tlscreds.h"
25 
26 #define TYPE_QCRYPTO_TLS_CREDS_ANON "tls-creds-anon"
27 #define QCRYPTO_TLS_CREDS_ANON(obj)                  \
28     OBJECT_CHECK(QCryptoTLSCredsAnon, (obj), TYPE_QCRYPTO_TLS_CREDS_ANON)
29 
30 
31 typedef struct QCryptoTLSCredsAnon QCryptoTLSCredsAnon;
32 typedef struct QCryptoTLSCredsAnonClass QCryptoTLSCredsAnonClass;
33 
34 /**
35  * QCryptoTLSCredsAnon:
36  *
37  * The QCryptoTLSCredsAnon object provides a representation
38  * of anonymous credentials used perform a TLS handshake.
39  * This is primarily provided for backwards compatibility and
40  * its use is discouraged as it has poor security characteristics
41  * due to lacking MITM attack protection amongst other problems.
42  *
43  * This is a user creatable object, which can be instantiated
44  * via object_new_propv():
45  *
46  * <example>
47  *   <title>Creating anonymous TLS credential objects in code</title>
48  *   <programlisting>
49  *   Object *obj;
50  *   Error *err = NULL;
51  *   obj = object_new_propv(TYPE_QCRYPTO_TLS_CREDS_ANON,
52  *                          "tlscreds0",
53  *                          &err,
54  *                          "endpoint", "server",
55  *                          "dir", "/path/x509/cert/dir",
56  *                          "verify-peer", "yes",
57  *                          NULL);
58  *   </programlisting>
59  * </example>
60  *
61  * Or via QMP:
62  *
63  * <example>
64  *   <title>Creating anonymous TLS credential objects via QMP</title>
65  *   <programlisting>
66  *    {
67  *       "execute": "object-add", "arguments": {
68  *          "id": "tlscreds0",
69  *          "qom-type": "tls-creds-anon",
70  *          "props": {
71  *             "endpoint": "server",
72  *             "dir": "/path/to/x509/cert/dir",
73  *             "verify-peer": false
74  *          }
75  *       }
76  *    }
77  *   </programlisting>
78  * </example>
79  *
80  *
81  * Or via the CLI:
82  *
83  * <example>
84  *   <title>Creating anonymous TLS credential objects via CLI</title>
85  *   <programlisting>
86  *  qemu-system-x86_64 -object tls-creds-anon,id=tlscreds0,\
87  *          endpoint=server,verify-peer=off,\
88  *          dir=/path/to/x509/certdir/
89  *   </programlisting>
90  * </example>
91  *
92  */
93 
94 
95 struct QCryptoTLSCredsAnon {
96     QCryptoTLSCreds parent_obj;
97 #ifdef CONFIG_GNUTLS
98     union {
99         gnutls_anon_server_credentials_t server;
100         gnutls_anon_client_credentials_t client;
101     } data;
102 #endif
103 };
104 
105 
106 struct QCryptoTLSCredsAnonClass {
107     QCryptoTLSCredsClass parent_class;
108 };
109 
110 
111 #endif /* QCRYPTO_TLSCREDSANON_H */
112