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21#include "qemu/osdep.h"
22#include "crypto/tlscredsanon.h"
23#include "tlscredspriv.h"
24#include "qapi/error.h"
25#include "qemu/module.h"
26#include "qom/object_interfaces.h"
27#include "trace.h"
28
29
30#ifdef CONFIG_GNUTLS
31
32
33static int
34qcrypto_tls_creds_anon_load(QCryptoTLSCredsAnon *creds,
35 Error **errp)
36{
37 g_autofree char *dhparams = NULL;
38 int ret;
39
40 trace_qcrypto_tls_creds_anon_load(creds,
41 creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>");
42
43 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
44 if (qcrypto_tls_creds_get_path(&creds->parent_obj,
45 QCRYPTO_TLS_CREDS_DH_PARAMS,
46 false, &dhparams, errp) < 0) {
47 return -1;
48 }
49
50 ret = gnutls_anon_allocate_server_credentials(&creds->data.server);
51 if (ret < 0) {
52 error_setg(errp, "Cannot allocate credentials: %s",
53 gnutls_strerror(ret));
54 return -1;
55 }
56
57 if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams,
58 &creds->parent_obj.dh_params,
59 errp) < 0) {
60 return -1;
61 }
62
63 gnutls_anon_set_server_dh_params(creds->data.server,
64 creds->parent_obj.dh_params);
65 } else {
66 ret = gnutls_anon_allocate_client_credentials(&creds->data.client);
67 if (ret < 0) {
68 error_setg(errp, "Cannot allocate credentials: %s",
69 gnutls_strerror(ret));
70 return -1;
71 }
72 }
73
74 return 0;
75}
76
77
78static void
79qcrypto_tls_creds_anon_unload(QCryptoTLSCredsAnon *creds)
80{
81 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
82 if (creds->data.client) {
83 gnutls_anon_free_client_credentials(creds->data.client);
84 creds->data.client = NULL;
85 }
86 } else {
87 if (creds->data.server) {
88 gnutls_anon_free_server_credentials(creds->data.server);
89 creds->data.server = NULL;
90 }
91 }
92 if (creds->parent_obj.dh_params) {
93 gnutls_dh_params_deinit(creds->parent_obj.dh_params);
94 creds->parent_obj.dh_params = NULL;
95 }
96}
97
98#else
99
100
101static void
102qcrypto_tls_creds_anon_load(QCryptoTLSCredsAnon *creds G_GNUC_UNUSED,
103 Error **errp)
104{
105 error_setg(errp, "TLS credentials support requires GNUTLS");
106}
107
108
109static void
110qcrypto_tls_creds_anon_unload(QCryptoTLSCredsAnon *creds G_GNUC_UNUSED)
111{
112
113}
114
115
116#endif
117
118
119static void
120qcrypto_tls_creds_anon_prop_set_loaded(Object *obj,
121 bool value,
122 Error **errp)
123{
124 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
125
126 qcrypto_tls_creds_anon_unload(creds);
127 if (value) {
128 qcrypto_tls_creds_anon_load(creds, errp);
129 }
130}
131
132
133#ifdef CONFIG_GNUTLS
134
135
136static bool
137qcrypto_tls_creds_anon_prop_get_loaded(Object *obj,
138 Error **errp G_GNUC_UNUSED)
139{
140 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
141
142 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
143 return creds->data.server != NULL;
144 } else {
145 return creds->data.client != NULL;
146 }
147}
148
149
150#else
151
152
153static bool
154qcrypto_tls_creds_anon_prop_get_loaded(Object *obj G_GNUC_UNUSED,
155 Error **errp G_GNUC_UNUSED)
156{
157 return false;
158}
159
160
161#endif
162
163
164static void
165qcrypto_tls_creds_anon_complete(UserCreatable *uc, Error **errp)
166{
167 object_property_set_bool(OBJECT(uc), "loaded", true, errp);
168}
169
170
171static void
172qcrypto_tls_creds_anon_finalize(Object *obj)
173{
174 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
175
176 qcrypto_tls_creds_anon_unload(creds);
177}
178
179
180static void
181qcrypto_tls_creds_anon_class_init(ObjectClass *oc, void *data)
182{
183 UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
184
185 ucc->complete = qcrypto_tls_creds_anon_complete;
186
187 object_class_property_add_bool(oc, "loaded",
188 qcrypto_tls_creds_anon_prop_get_loaded,
189 qcrypto_tls_creds_anon_prop_set_loaded);
190}
191
192
193static const TypeInfo qcrypto_tls_creds_anon_info = {
194 .parent = TYPE_QCRYPTO_TLS_CREDS,
195 .name = TYPE_QCRYPTO_TLS_CREDS_ANON,
196 .instance_size = sizeof(QCryptoTLSCredsAnon),
197 .instance_finalize = qcrypto_tls_creds_anon_finalize,
198 .class_size = sizeof(QCryptoTLSCredsAnonClass),
199 .class_init = qcrypto_tls_creds_anon_class_init,
200 .interfaces = (InterfaceInfo[]) {
201 { TYPE_USER_CREATABLE },
202 { }
203 }
204};
205
206
207static void
208qcrypto_tls_creds_anon_register_types(void)
209{
210 type_register_static(&qcrypto_tls_creds_anon_info);
211}
212
213
214type_init(qcrypto_tls_creds_anon_register_types);
215