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21#include "qemu/osdep.h"
22#include "qapi/error.h"
23#include "crypto/tlscredspriv.h"
24#include "trace.h"
25
26#define DH_BITS 2048
27
28#ifdef CONFIG_GNUTLS
29int
30qcrypto_tls_creds_get_dh_params_file(QCryptoTLSCreds *creds,
31 const char *filename,
32 gnutls_dh_params_t *dh_params,
33 Error **errp)
34{
35 int ret;
36
37 trace_qcrypto_tls_creds_load_dh(creds, filename ? filename : "<generated>");
38
39 if (filename == NULL) {
40 ret = gnutls_dh_params_init(dh_params);
41 if (ret < 0) {
42 error_setg(errp, "Unable to initialize DH parameters: %s",
43 gnutls_strerror(ret));
44 return -1;
45 }
46 ret = gnutls_dh_params_generate2(*dh_params, DH_BITS);
47 if (ret < 0) {
48 gnutls_dh_params_deinit(*dh_params);
49 *dh_params = NULL;
50 error_setg(errp, "Unable to generate DH parameters: %s",
51 gnutls_strerror(ret));
52 return -1;
53 }
54 } else {
55 GError *gerr = NULL;
56 gchar *contents;
57 gsize len;
58 gnutls_datum_t data;
59 if (!g_file_get_contents(filename,
60 &contents,
61 &len,
62 &gerr)) {
63
64 error_setg(errp, "%s", gerr->message);
65 g_error_free(gerr);
66 return -1;
67 }
68 data.data = (unsigned char *)contents;
69 data.size = len;
70 ret = gnutls_dh_params_init(dh_params);
71 if (ret < 0) {
72 g_free(contents);
73 error_setg(errp, "Unable to initialize DH parameters: %s",
74 gnutls_strerror(ret));
75 return -1;
76 }
77 ret = gnutls_dh_params_import_pkcs3(*dh_params,
78 &data,
79 GNUTLS_X509_FMT_PEM);
80 g_free(contents);
81 if (ret < 0) {
82 gnutls_dh_params_deinit(*dh_params);
83 *dh_params = NULL;
84 error_setg(errp, "Unable to load DH parameters from %s: %s",
85 filename, gnutls_strerror(ret));
86 return -1;
87 }
88 }
89
90 return 0;
91}
92
93
94int
95qcrypto_tls_creds_get_path(QCryptoTLSCreds *creds,
96 const char *filename,
97 bool required,
98 char **cred,
99 Error **errp)
100{
101 struct stat sb;
102 int ret = -1;
103
104 if (!creds->dir) {
105 if (required) {
106 error_setg(errp, "Missing 'dir' property value");
107 return -1;
108 } else {
109 return 0;
110 }
111 }
112
113 *cred = g_strdup_printf("%s/%s", creds->dir, filename);
114
115 if (stat(*cred, &sb) < 0) {
116 if (errno == ENOENT && !required) {
117 ret = 0;
118 } else {
119 error_setg_errno(errp, errno,
120 "Unable to access credentials %s",
121 *cred);
122 }
123 g_free(*cred);
124 *cred = NULL;
125 goto cleanup;
126 }
127
128 ret = 0;
129 cleanup:
130 trace_qcrypto_tls_creds_get_path(creds, filename,
131 *cred ? *cred : "<none>");
132 return ret;
133}
134
135
136#endif
137
138
139static void
140qcrypto_tls_creds_prop_set_verify(Object *obj,
141 bool value,
142 Error **errp G_GNUC_UNUSED)
143{
144 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
145
146 creds->verifyPeer = value;
147}
148
149
150static bool
151qcrypto_tls_creds_prop_get_verify(Object *obj,
152 Error **errp G_GNUC_UNUSED)
153{
154 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
155
156 return creds->verifyPeer;
157}
158
159
160static void
161qcrypto_tls_creds_prop_set_dir(Object *obj,
162 const char *value,
163 Error **errp G_GNUC_UNUSED)
164{
165 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
166
167 creds->dir = g_strdup(value);
168}
169
170
171static char *
172qcrypto_tls_creds_prop_get_dir(Object *obj,
173 Error **errp G_GNUC_UNUSED)
174{
175 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
176
177 return g_strdup(creds->dir);
178}
179
180
181static void
182qcrypto_tls_creds_prop_set_priority(Object *obj,
183 const char *value,
184 Error **errp G_GNUC_UNUSED)
185{
186 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
187
188 creds->priority = g_strdup(value);
189}
190
191
192static char *
193qcrypto_tls_creds_prop_get_priority(Object *obj,
194 Error **errp G_GNUC_UNUSED)
195{
196 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
197
198 return g_strdup(creds->priority);
199}
200
201
202static void
203qcrypto_tls_creds_prop_set_endpoint(Object *obj,
204 int value,
205 Error **errp G_GNUC_UNUSED)
206{
207 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
208
209 creds->endpoint = value;
210}
211
212
213static int
214qcrypto_tls_creds_prop_get_endpoint(Object *obj,
215 Error **errp G_GNUC_UNUSED)
216{
217 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
218
219 return creds->endpoint;
220}
221
222
223static void
224qcrypto_tls_creds_class_init(ObjectClass *oc, void *data)
225{
226 object_class_property_add_bool(oc, "verify-peer",
227 qcrypto_tls_creds_prop_get_verify,
228 qcrypto_tls_creds_prop_set_verify,
229 NULL);
230 object_class_property_add_str(oc, "dir",
231 qcrypto_tls_creds_prop_get_dir,
232 qcrypto_tls_creds_prop_set_dir,
233 NULL);
234 object_class_property_add_enum(oc, "endpoint",
235 "QCryptoTLSCredsEndpoint",
236 &QCryptoTLSCredsEndpoint_lookup,
237 qcrypto_tls_creds_prop_get_endpoint,
238 qcrypto_tls_creds_prop_set_endpoint,
239 NULL);
240 object_class_property_add_str(oc, "priority",
241 qcrypto_tls_creds_prop_get_priority,
242 qcrypto_tls_creds_prop_set_priority,
243 NULL);
244}
245
246
247static void
248qcrypto_tls_creds_init(Object *obj)
249{
250 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
251
252 creds->verifyPeer = true;
253}
254
255
256static void
257qcrypto_tls_creds_finalize(Object *obj)
258{
259 QCryptoTLSCreds *creds = QCRYPTO_TLS_CREDS(obj);
260
261 g_free(creds->dir);
262 g_free(creds->priority);
263}
264
265
266static const TypeInfo qcrypto_tls_creds_info = {
267 .parent = TYPE_OBJECT,
268 .name = TYPE_QCRYPTO_TLS_CREDS,
269 .instance_size = sizeof(QCryptoTLSCreds),
270 .instance_init = qcrypto_tls_creds_init,
271 .instance_finalize = qcrypto_tls_creds_finalize,
272 .class_init = qcrypto_tls_creds_class_init,
273 .class_size = sizeof(QCryptoTLSCredsClass),
274 .abstract = true,
275};
276
277
278static void
279qcrypto_tls_creds_register_types(void)
280{
281 type_register_static(&qcrypto_tls_creds_info);
282}
283
284
285type_init(qcrypto_tls_creds_register_types);
286