xref: /openbmc/qemu/crypto/tlscredsx509.c (revision 4921d0a7)
1 /*
2  * QEMU crypto TLS x509 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 #include "qemu/osdep.h"
22 #include "crypto/tlscredsx509.h"
23 #include "tlscredspriv.h"
24 #include "crypto/secret.h"
25 #include "qapi/error.h"
26 #include "qemu/module.h"
27 #include "qom/object_interfaces.h"
28 #include "trace.h"
29 
30 
31 #ifdef CONFIG_GNUTLS
32 
33 #include <gnutls/gnutls.h>
34 #include <gnutls/x509.h>
35 
36 
37 static int
38 qcrypto_tls_creds_check_cert_times(gnutls_x509_crt_t cert,
39                                    const char *certFile,
40                                    bool isServer,
41                                    bool isCA,
42                                    Error **errp)
43 {
44     time_t now = time(NULL);
45 
46     if (now == ((time_t)-1)) {
47         error_setg_errno(errp, errno, "cannot get current time");
48         return -1;
49     }
50 
51     if (gnutls_x509_crt_get_expiration_time(cert) < now) {
52         error_setg(errp,
53                    (isCA ?
54                     "The CA certificate %s has expired" :
55                     (isServer ?
56                      "The server certificate %s has expired" :
57                      "The client certificate %s has expired")),
58                    certFile);
59         return -1;
60     }
61 
62     if (gnutls_x509_crt_get_activation_time(cert) > now) {
63         error_setg(errp,
64                    (isCA ?
65                     "The CA certificate %s is not yet active" :
66                     (isServer ?
67                      "The server certificate %s is not yet active" :
68                      "The client certificate %s is not yet active")),
69                    certFile);
70         return -1;
71     }
72 
73     return 0;
74 }
75 
76 
77 static int
78 qcrypto_tls_creds_check_cert_basic_constraints(QCryptoTLSCredsX509 *creds,
79                                                gnutls_x509_crt_t cert,
80                                                const char *certFile,
81                                                bool isServer,
82                                                bool isCA,
83                                                Error **errp)
84 {
85     int status;
86 
87     status = gnutls_x509_crt_get_basic_constraints(cert, NULL, NULL, NULL);
88     trace_qcrypto_tls_creds_x509_check_basic_constraints(
89         creds, certFile, status);
90 
91     if (status > 0) { /* It is a CA cert */
92         if (!isCA) {
93             error_setg(errp, isServer ?
94                        "The certificate %s basic constraints show a CA, "
95                        "but we need one for a server" :
96                        "The certificate %s basic constraints show a CA, "
97                        "but we need one for a client",
98                        certFile);
99             return -1;
100         }
101     } else if (status == 0) { /* It is not a CA cert */
102         if (isCA) {
103             error_setg(errp,
104                        "The certificate %s basic constraints do not "
105                        "show a CA",
106                        certFile);
107             return -1;
108         }
109     } else if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
110         /* Missing basicConstraints */
111         if (isCA) {
112             error_setg(errp,
113                        "The certificate %s is missing basic constraints "
114                        "for a CA",
115                        certFile);
116             return -1;
117         }
118     } else { /* General error */
119         error_setg(errp,
120                    "Unable to query certificate %s basic constraints: %s",
121                    certFile, gnutls_strerror(status));
122         return -1;
123     }
124 
125     return 0;
126 }
127 
128 
129 static int
130 qcrypto_tls_creds_check_cert_key_usage(QCryptoTLSCredsX509 *creds,
131                                        gnutls_x509_crt_t cert,
132                                        const char *certFile,
133                                        bool isCA,
134                                        Error **errp)
135 {
136     int status;
137     unsigned int usage = 0;
138     unsigned int critical = 0;
139 
140     status = gnutls_x509_crt_get_key_usage(cert, &usage, &critical);
141     trace_qcrypto_tls_creds_x509_check_key_usage(
142         creds, certFile, status, usage, critical);
143 
144     if (status < 0) {
145         if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
146             usage = isCA ? GNUTLS_KEY_KEY_CERT_SIGN :
147                 GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT;
148         } else {
149             error_setg(errp,
150                        "Unable to query certificate %s key usage: %s",
151                        certFile, gnutls_strerror(status));
152             return -1;
153         }
154     }
155 
156     if (isCA) {
157         if (!(usage & GNUTLS_KEY_KEY_CERT_SIGN)) {
158             if (critical) {
159                 error_setg(errp,
160                            "Certificate %s usage does not permit "
161                            "certificate signing", certFile);
162                 return -1;
163             }
164         }
165     } else {
166         if (!(usage & GNUTLS_KEY_DIGITAL_SIGNATURE)) {
167             if (critical) {
168                 error_setg(errp,
169                            "Certificate %s usage does not permit digital "
170                            "signature", certFile);
171                 return -1;
172             }
173         }
174         if (!(usage & GNUTLS_KEY_KEY_ENCIPHERMENT)) {
175             if (critical) {
176                 error_setg(errp,
177                            "Certificate %s usage does not permit key "
178                            "encipherment", certFile);
179                 return -1;
180             }
181         }
182     }
183 
184     return 0;
185 }
186 
187 
188 static int
189 qcrypto_tls_creds_check_cert_key_purpose(QCryptoTLSCredsX509 *creds,
190                                          gnutls_x509_crt_t cert,
191                                          const char *certFile,
192                                          bool isServer,
193                                          Error **errp)
194 {
195     int status;
196     size_t i;
197     unsigned int purposeCritical;
198     unsigned int critical;
199     char *buffer = NULL;
200     size_t size;
201     bool allowClient = false, allowServer = false;
202 
203     critical = 0;
204     for (i = 0; ; i++) {
205         size = 0;
206         status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer,
207                                                      &size, NULL);
208 
209         if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
210 
211             /* If there is no data at all, then we must allow
212                client/server to pass */
213             if (i == 0) {
214                 allowServer = allowClient = true;
215             }
216             break;
217         }
218         if (status != GNUTLS_E_SHORT_MEMORY_BUFFER) {
219             error_setg(errp,
220                        "Unable to query certificate %s key purpose: %s",
221                        certFile, gnutls_strerror(status));
222             return -1;
223         }
224 
225         buffer = g_new0(char, size);
226 
227         status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer,
228                                                      &size, &purposeCritical);
229 
230         if (status < 0) {
231             trace_qcrypto_tls_creds_x509_check_key_purpose(
232                 creds, certFile, status, "<none>", purposeCritical);
233             g_free(buffer);
234             error_setg(errp,
235                        "Unable to query certificate %s key purpose: %s",
236                        certFile, gnutls_strerror(status));
237             return -1;
238         }
239         trace_qcrypto_tls_creds_x509_check_key_purpose(
240             creds, certFile, status, buffer, purposeCritical);
241         if (purposeCritical) {
242             critical = true;
243         }
244 
245         if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_SERVER)) {
246             allowServer = true;
247         } else if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_CLIENT)) {
248             allowClient = true;
249         } else if (g_str_equal(buffer, GNUTLS_KP_ANY)) {
250             allowServer = allowClient = true;
251         }
252 
253         g_free(buffer);
254         buffer = NULL;
255     }
256 
257     if (isServer) {
258         if (!allowServer) {
259             if (critical) {
260                 error_setg(errp,
261                            "Certificate %s purpose does not allow "
262                            "use with a TLS server", certFile);
263                 return -1;
264             }
265         }
266     } else {
267         if (!allowClient) {
268             if (critical) {
269                 error_setg(errp,
270                            "Certificate %s purpose does not allow use "
271                            "with a TLS client", certFile);
272                 return -1;
273             }
274         }
275     }
276 
277     return 0;
278 }
279 
280 
281 static int
282 qcrypto_tls_creds_check_cert(QCryptoTLSCredsX509 *creds,
283                              gnutls_x509_crt_t cert,
284                              const char *certFile,
285                              bool isServer,
286                              bool isCA,
287                              Error **errp)
288 {
289     if (qcrypto_tls_creds_check_cert_times(cert, certFile,
290                                            isServer, isCA,
291                                            errp) < 0) {
292         return -1;
293     }
294 
295     if (qcrypto_tls_creds_check_cert_basic_constraints(creds,
296                                                        cert, certFile,
297                                                        isServer, isCA,
298                                                        errp) < 0) {
299         return -1;
300     }
301 
302     if (qcrypto_tls_creds_check_cert_key_usage(creds,
303                                                cert, certFile,
304                                                isCA, errp) < 0) {
305         return -1;
306     }
307 
308     if (!isCA &&
309         qcrypto_tls_creds_check_cert_key_purpose(creds,
310                                                  cert, certFile,
311                                                  isServer, errp) < 0) {
312         return -1;
313     }
314 
315     return 0;
316 }
317 
318 
319 static int
320 qcrypto_tls_creds_check_cert_pair(gnutls_x509_crt_t cert,
321                                   const char *certFile,
322                                   gnutls_x509_crt_t *cacerts,
323                                   size_t ncacerts,
324                                   const char *cacertFile,
325                                   bool isServer,
326                                   Error **errp)
327 {
328     unsigned int status;
329 
330     if (gnutls_x509_crt_list_verify(&cert, 1,
331                                     cacerts, ncacerts,
332                                     NULL, 0,
333                                     0, &status) < 0) {
334         error_setg(errp, isServer ?
335                    "Unable to verify server certificate %s against "
336                    "CA certificate %s" :
337                    "Unable to verify client certificate %s against "
338                    "CA certificate %s",
339                    certFile, cacertFile);
340         return -1;
341     }
342 
343     if (status != 0) {
344         const char *reason = "Invalid certificate";
345 
346         if (status & GNUTLS_CERT_INVALID) {
347             reason = "The certificate is not trusted";
348         }
349 
350         if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) {
351             reason = "The certificate hasn't got a known issuer";
352         }
353 
354         if (status & GNUTLS_CERT_REVOKED) {
355             reason = "The certificate has been revoked";
356         }
357 
358         if (status & GNUTLS_CERT_INSECURE_ALGORITHM) {
359             reason = "The certificate uses an insecure algorithm";
360         }
361 
362         error_setg(errp,
363                    "Our own certificate %s failed validation against %s: %s",
364                    certFile, cacertFile, reason);
365         return -1;
366     }
367 
368     return 0;
369 }
370 
371 
372 static gnutls_x509_crt_t
373 qcrypto_tls_creds_load_cert(QCryptoTLSCredsX509 *creds,
374                             const char *certFile,
375                             bool isServer,
376                             Error **errp)
377 {
378     gnutls_datum_t data;
379     gnutls_x509_crt_t cert = NULL;
380     g_autofree char *buf = NULL;
381     gsize buflen;
382     GError *gerr = NULL;
383     int ret = -1;
384     int err;
385 
386     trace_qcrypto_tls_creds_x509_load_cert(creds, isServer, certFile);
387 
388     err = gnutls_x509_crt_init(&cert);
389     if (err < 0) {
390         error_setg(errp, "Unable to initialize certificate: %s",
391                    gnutls_strerror(err));
392         goto cleanup;
393     }
394 
395     if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) {
396         error_setg(errp, "Cannot load CA cert list %s: %s",
397                    certFile, gerr->message);
398         g_error_free(gerr);
399         goto cleanup;
400     }
401 
402     data.data = (unsigned char *)buf;
403     data.size = strlen(buf);
404 
405     err = gnutls_x509_crt_import(cert, &data, GNUTLS_X509_FMT_PEM);
406     if (err < 0) {
407         error_setg(errp, isServer ?
408                    "Unable to import server certificate %s: %s" :
409                    "Unable to import client certificate %s: %s",
410                    certFile,
411                    gnutls_strerror(err));
412         goto cleanup;
413     }
414 
415     ret = 0;
416 
417  cleanup:
418     if (ret != 0) {
419         gnutls_x509_crt_deinit(cert);
420         cert = NULL;
421     }
422     return cert;
423 }
424 
425 
426 static int
427 qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX509 *creds,
428                                     const char *certFile,
429                                     gnutls_x509_crt_t *certs,
430                                     unsigned int certMax,
431                                     size_t *ncerts,
432                                     Error **errp)
433 {
434     gnutls_datum_t data;
435     g_autofree char *buf = NULL;
436     gsize buflen;
437     GError *gerr = NULL;
438 
439     *ncerts = 0;
440     trace_qcrypto_tls_creds_x509_load_cert_list(creds, certFile);
441 
442     if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) {
443         error_setg(errp, "Cannot load CA cert list %s: %s",
444                    certFile, gerr->message);
445         g_error_free(gerr);
446         return -1;
447     }
448 
449     data.data = (unsigned char *)buf;
450     data.size = strlen(buf);
451 
452     if (gnutls_x509_crt_list_import(certs, &certMax, &data,
453                                     GNUTLS_X509_FMT_PEM, 0) < 0) {
454         error_setg(errp,
455                    "Unable to import CA certificate list %s",
456                    certFile);
457         return -1;
458     }
459     *ncerts = certMax;
460 
461     return 0;
462 }
463 
464 
465 #define MAX_CERTS 16
466 static int
467 qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509 *creds,
468                                     bool isServer,
469                                     const char *cacertFile,
470                                     const char *certFile,
471                                     Error **errp)
472 {
473     gnutls_x509_crt_t cert = NULL;
474     gnutls_x509_crt_t cacerts[MAX_CERTS];
475     size_t ncacerts = 0;
476     size_t i;
477     int ret = -1;
478 
479     memset(cacerts, 0, sizeof(cacerts));
480     if (certFile &&
481         access(certFile, R_OK) == 0) {
482         cert = qcrypto_tls_creds_load_cert(creds,
483                                            certFile, isServer,
484                                            errp);
485         if (!cert) {
486             goto cleanup;
487         }
488     }
489     if (access(cacertFile, R_OK) == 0) {
490         if (qcrypto_tls_creds_load_ca_cert_list(creds,
491                                                 cacertFile, cacerts,
492                                                 MAX_CERTS, &ncacerts,
493                                                 errp) < 0) {
494             goto cleanup;
495         }
496     }
497 
498     if (cert &&
499         qcrypto_tls_creds_check_cert(creds,
500                                      cert, certFile, isServer,
501                                      false, errp) < 0) {
502         goto cleanup;
503     }
504 
505     for (i = 0; i < ncacerts; i++) {
506         if (qcrypto_tls_creds_check_cert(creds,
507                                          cacerts[i], cacertFile,
508                                          isServer, true, errp) < 0) {
509             goto cleanup;
510         }
511     }
512 
513     if (cert && ncacerts &&
514         qcrypto_tls_creds_check_cert_pair(cert, certFile, cacerts,
515                                           ncacerts, cacertFile,
516                                           isServer, errp) < 0) {
517         goto cleanup;
518     }
519 
520     ret = 0;
521 
522  cleanup:
523     if (cert) {
524         gnutls_x509_crt_deinit(cert);
525     }
526     for (i = 0; i < ncacerts; i++) {
527         gnutls_x509_crt_deinit(cacerts[i]);
528     }
529     return ret;
530 }
531 
532 
533 static int
534 qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds,
535                             Error **errp)
536 {
537     char *cacert = NULL, *cacrl = NULL, *cert = NULL,
538         *key = NULL, *dhparams = NULL;
539     int ret;
540     int rv = -1;
541 
542     trace_qcrypto_tls_creds_x509_load(creds,
543             creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>");
544 
545     if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
546         if (qcrypto_tls_creds_get_path(&creds->parent_obj,
547                                        QCRYPTO_TLS_CREDS_X509_CA_CERT,
548                                        true, &cacert, errp) < 0 ||
549             qcrypto_tls_creds_get_path(&creds->parent_obj,
550                                        QCRYPTO_TLS_CREDS_X509_CA_CRL,
551                                        false, &cacrl, errp) < 0 ||
552             qcrypto_tls_creds_get_path(&creds->parent_obj,
553                                        QCRYPTO_TLS_CREDS_X509_SERVER_CERT,
554                                        true, &cert, errp) < 0 ||
555             qcrypto_tls_creds_get_path(&creds->parent_obj,
556                                        QCRYPTO_TLS_CREDS_X509_SERVER_KEY,
557                                        true, &key, errp) < 0 ||
558             qcrypto_tls_creds_get_path(&creds->parent_obj,
559                                        QCRYPTO_TLS_CREDS_DH_PARAMS,
560                                        false, &dhparams, errp) < 0) {
561             goto cleanup;
562         }
563     } else {
564         if (qcrypto_tls_creds_get_path(&creds->parent_obj,
565                                        QCRYPTO_TLS_CREDS_X509_CA_CERT,
566                                        true, &cacert, errp) < 0 ||
567             qcrypto_tls_creds_get_path(&creds->parent_obj,
568                                        QCRYPTO_TLS_CREDS_X509_CLIENT_CERT,
569                                        false, &cert, errp) < 0 ||
570             qcrypto_tls_creds_get_path(&creds->parent_obj,
571                                        QCRYPTO_TLS_CREDS_X509_CLIENT_KEY,
572                                        false, &key, errp) < 0) {
573             goto cleanup;
574         }
575     }
576 
577     if (creds->sanityCheck &&
578         qcrypto_tls_creds_x509_sanity_check(creds,
579             creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
580             cacert, cert, errp) < 0) {
581         goto cleanup;
582     }
583 
584     ret = gnutls_certificate_allocate_credentials(&creds->data);
585     if (ret < 0) {
586         error_setg(errp, "Cannot allocate credentials: '%s'",
587                    gnutls_strerror(ret));
588         goto cleanup;
589     }
590 
591     ret = gnutls_certificate_set_x509_trust_file(creds->data,
592                                                  cacert,
593                                                  GNUTLS_X509_FMT_PEM);
594     if (ret < 0) {
595         error_setg(errp, "Cannot load CA certificate '%s': %s",
596                    cacert, gnutls_strerror(ret));
597         goto cleanup;
598     }
599 
600     if (cert != NULL && key != NULL) {
601         char *password = NULL;
602         if (creds->passwordid) {
603             password = qcrypto_secret_lookup_as_utf8(creds->passwordid,
604                                                      errp);
605             if (!password) {
606                 goto cleanup;
607             }
608         }
609         ret = gnutls_certificate_set_x509_key_file2(creds->data,
610                                                     cert, key,
611                                                     GNUTLS_X509_FMT_PEM,
612                                                     password,
613                                                     0);
614         g_free(password);
615         if (ret < 0) {
616             error_setg(errp, "Cannot load certificate '%s' & key '%s': %s",
617                        cert, key, gnutls_strerror(ret));
618             goto cleanup;
619         }
620     }
621 
622     if (cacrl != NULL) {
623         ret = gnutls_certificate_set_x509_crl_file(creds->data,
624                                                    cacrl,
625                                                    GNUTLS_X509_FMT_PEM);
626         if (ret < 0) {
627             error_setg(errp, "Cannot load CRL '%s': %s",
628                        cacrl, gnutls_strerror(ret));
629             goto cleanup;
630         }
631     }
632 
633     if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
634         if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams,
635                                                  &creds->parent_obj.dh_params,
636                                                  errp) < 0) {
637             goto cleanup;
638         }
639         gnutls_certificate_set_dh_params(creds->data,
640                                          creds->parent_obj.dh_params);
641     }
642 
643     rv = 0;
644  cleanup:
645     g_free(cacert);
646     g_free(cacrl);
647     g_free(cert);
648     g_free(key);
649     g_free(dhparams);
650     return rv;
651 }
652 
653 
654 static void
655 qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds)
656 {
657     if (creds->data) {
658         gnutls_certificate_free_credentials(creds->data);
659         creds->data = NULL;
660     }
661     if (creds->parent_obj.dh_params) {
662         gnutls_dh_params_deinit(creds->parent_obj.dh_params);
663         creds->parent_obj.dh_params = NULL;
664     }
665 }
666 
667 
668 #else /* ! CONFIG_GNUTLS */
669 
670 
671 static void
672 qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED,
673                             Error **errp)
674 {
675     error_setg(errp, "TLS credentials support requires GNUTLS");
676 }
677 
678 
679 static void
680 qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED)
681 {
682     /* nada */
683 }
684 
685 
686 #endif /* ! CONFIG_GNUTLS */
687 
688 
689 static void
690 qcrypto_tls_creds_x509_complete(UserCreatable *uc, Error **errp)
691 {
692     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(uc);
693 
694     qcrypto_tls_creds_x509_load(creds, errp);
695 }
696 
697 
698 #ifdef CONFIG_GNUTLS
699 
700 
701 static bool
702 qcrypto_tls_creds_x509_prop_get_loaded(Object *obj,
703                                        Error **errp G_GNUC_UNUSED)
704 {
705     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
706 
707     return creds->data != NULL;
708 }
709 
710 
711 #else /* ! CONFIG_GNUTLS */
712 
713 
714 static bool
715 qcrypto_tls_creds_x509_prop_get_loaded(Object *obj G_GNUC_UNUSED,
716                                        Error **errp G_GNUC_UNUSED)
717 {
718     return false;
719 }
720 
721 
722 #endif /* ! CONFIG_GNUTLS */
723 
724 
725 static void
726 qcrypto_tls_creds_x509_prop_set_sanity(Object *obj,
727                                        bool value,
728                                        Error **errp G_GNUC_UNUSED)
729 {
730     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
731 
732     creds->sanityCheck = value;
733 }
734 
735 
736 static void
737 qcrypto_tls_creds_x509_prop_set_passwordid(Object *obj,
738                                            const char *value,
739                                            Error **errp G_GNUC_UNUSED)
740 {
741     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
742 
743     creds->passwordid = g_strdup(value);
744 }
745 
746 
747 static char *
748 qcrypto_tls_creds_x509_prop_get_passwordid(Object *obj,
749                                            Error **errp G_GNUC_UNUSED)
750 {
751     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
752 
753     return g_strdup(creds->passwordid);
754 }
755 
756 
757 static bool
758 qcrypto_tls_creds_x509_prop_get_sanity(Object *obj,
759                                        Error **errp G_GNUC_UNUSED)
760 {
761     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
762 
763     return creds->sanityCheck;
764 }
765 
766 
767 #ifdef CONFIG_GNUTLS
768 
769 
770 static bool
771 qcrypto_tls_creds_x509_reload(QCryptoTLSCreds *creds, Error **errp)
772 {
773     QCryptoTLSCredsX509 *x509_creds = QCRYPTO_TLS_CREDS_X509(creds);
774     Error *local_err = NULL;
775     gnutls_certificate_credentials_t creds_data = x509_creds->data;
776     gnutls_dh_params_t creds_dh_params = x509_creds->parent_obj.dh_params;
777 
778     x509_creds->data = NULL;
779     x509_creds->parent_obj.dh_params = NULL;
780     qcrypto_tls_creds_x509_load(x509_creds, &local_err);
781     if (local_err) {
782         qcrypto_tls_creds_x509_unload(x509_creds);
783         x509_creds->data = creds_data;
784         x509_creds->parent_obj.dh_params = creds_dh_params;
785         error_propagate(errp, local_err);
786         return false;
787     }
788 
789     if (creds_data) {
790         gnutls_certificate_free_credentials(creds_data);
791     }
792     if (creds_dh_params) {
793         gnutls_dh_params_deinit(creds_dh_params);
794     }
795     return true;
796 }
797 
798 
799 #else /* ! CONFIG_GNUTLS */
800 
801 
802 static bool
803 qcrypto_tls_creds_x509_reload(QCryptoTLSCreds *creds, Error **errp)
804 {
805     return false;
806 }
807 
808 
809 #endif /* ! CONFIG_GNUTLS */
810 
811 
812 static void
813 qcrypto_tls_creds_x509_init(Object *obj)
814 {
815     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
816 
817     creds->sanityCheck = true;
818 }
819 
820 
821 static void
822 qcrypto_tls_creds_x509_finalize(Object *obj)
823 {
824     QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
825 
826     g_free(creds->passwordid);
827     qcrypto_tls_creds_x509_unload(creds);
828 }
829 
830 
831 static void
832 qcrypto_tls_creds_x509_class_init(ObjectClass *oc, void *data)
833 {
834     UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
835     QCryptoTLSCredsClass *ctcc = QCRYPTO_TLS_CREDS_CLASS(oc);
836 
837     ctcc->reload = qcrypto_tls_creds_x509_reload;
838 
839     ucc->complete = qcrypto_tls_creds_x509_complete;
840 
841     object_class_property_add_bool(oc, "loaded",
842                                    qcrypto_tls_creds_x509_prop_get_loaded,
843                                    NULL);
844     object_class_property_add_bool(oc, "sanity-check",
845                                    qcrypto_tls_creds_x509_prop_get_sanity,
846                                    qcrypto_tls_creds_x509_prop_set_sanity);
847     object_class_property_add_str(oc, "passwordid",
848                                   qcrypto_tls_creds_x509_prop_get_passwordid,
849                                   qcrypto_tls_creds_x509_prop_set_passwordid);
850 }
851 
852 
853 static const TypeInfo qcrypto_tls_creds_x509_info = {
854     .parent = TYPE_QCRYPTO_TLS_CREDS,
855     .name = TYPE_QCRYPTO_TLS_CREDS_X509,
856     .instance_size = sizeof(QCryptoTLSCredsX509),
857     .instance_init = qcrypto_tls_creds_x509_init,
858     .instance_finalize = qcrypto_tls_creds_x509_finalize,
859     .class_size = sizeof(QCryptoTLSCredsX509Class),
860     .class_init = qcrypto_tls_creds_x509_class_init,
861     .interfaces = (InterfaceInfo[]) {
862         { TYPE_USER_CREATABLE },
863         { }
864     }
865 };
866 
867 
868 static void
869 qcrypto_tls_creds_x509_register_types(void)
870 {
871     type_register_static(&qcrypto_tls_creds_x509_info);
872 }
873 
874 
875 type_init(qcrypto_tls_creds_x509_register_types);
876