meson: Merge trace_events_subdirs array
[qemu/ar7.git] / crypto / tlscredsx509.c
blobdbadad4df28e66f175a23d82e9926886a1473dd0
1 /*
2 * QEMU crypto TLS x509 credential support
4 * Copyright (c) 2015 Red Hat, Inc.
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.
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.
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/>.
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"
31 #ifdef CONFIG_GNUTLS
33 #include <gnutls/x509.h>
36 static int
37 qcrypto_tls_creds_check_cert_times(gnutls_x509_crt_t cert,
38 const char *certFile,
39 bool isServer,
40 bool isCA,
41 Error **errp)
43 time_t now = time(NULL);
45 if (now == ((time_t)-1)) {
46 error_setg_errno(errp, errno, "cannot get current time");
47 return -1;
50 if (gnutls_x509_crt_get_expiration_time(cert) < now) {
51 error_setg(errp,
52 (isCA ?
53 "The CA certificate %s has expired" :
54 (isServer ?
55 "The server certificate %s has expired" :
56 "The client certificate %s has expired")),
57 certFile);
58 return -1;
61 if (gnutls_x509_crt_get_activation_time(cert) > now) {
62 error_setg(errp,
63 (isCA ?
64 "The CA certificate %s is not yet active" :
65 (isServer ?
66 "The server certificate %s is not yet active" :
67 "The client certificate %s is not yet active")),
68 certFile);
69 return -1;
72 return 0;
76 static int
77 qcrypto_tls_creds_check_cert_basic_constraints(QCryptoTLSCredsX509 *creds,
78 gnutls_x509_crt_t cert,
79 const char *certFile,
80 bool isServer,
81 bool isCA,
82 Error **errp)
84 int status;
86 status = gnutls_x509_crt_get_basic_constraints(cert, NULL, NULL, NULL);
87 trace_qcrypto_tls_creds_x509_check_basic_constraints(
88 creds, certFile, status);
90 if (status > 0) { /* It is a CA cert */
91 if (!isCA) {
92 error_setg(errp, isServer ?
93 "The certificate %s basic constraints show a CA, "
94 "but we need one for a server" :
95 "The certificate %s basic constraints show a CA, "
96 "but we need one for a client",
97 certFile);
98 return -1;
100 } else if (status == 0) { /* It is not a CA cert */
101 if (isCA) {
102 error_setg(errp,
103 "The certificate %s basic constraints do not "
104 "show a CA",
105 certFile);
106 return -1;
108 } else if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
109 /* Missing basicConstraints */
110 if (isCA) {
111 error_setg(errp,
112 "The certificate %s is missing basic constraints "
113 "for a CA",
114 certFile);
115 return -1;
117 } else { /* General error */
118 error_setg(errp,
119 "Unable to query certificate %s basic constraints: %s",
120 certFile, gnutls_strerror(status));
121 return -1;
124 return 0;
128 static int
129 qcrypto_tls_creds_check_cert_key_usage(QCryptoTLSCredsX509 *creds,
130 gnutls_x509_crt_t cert,
131 const char *certFile,
132 bool isCA,
133 Error **errp)
135 int status;
136 unsigned int usage = 0;
137 unsigned int critical = 0;
139 status = gnutls_x509_crt_get_key_usage(cert, &usage, &critical);
140 trace_qcrypto_tls_creds_x509_check_key_usage(
141 creds, certFile, status, usage, critical);
143 if (status < 0) {
144 if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
145 usage = isCA ? GNUTLS_KEY_KEY_CERT_SIGN :
146 GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT;
147 } else {
148 error_setg(errp,
149 "Unable to query certificate %s key usage: %s",
150 certFile, gnutls_strerror(status));
151 return -1;
155 if (isCA) {
156 if (!(usage & GNUTLS_KEY_KEY_CERT_SIGN)) {
157 if (critical) {
158 error_setg(errp,
159 "Certificate %s usage does not permit "
160 "certificate signing", certFile);
161 return -1;
164 } else {
165 if (!(usage & GNUTLS_KEY_DIGITAL_SIGNATURE)) {
166 if (critical) {
167 error_setg(errp,
168 "Certificate %s usage does not permit digital "
169 "signature", certFile);
170 return -1;
173 if (!(usage & GNUTLS_KEY_KEY_ENCIPHERMENT)) {
174 if (critical) {
175 error_setg(errp,
176 "Certificate %s usage does not permit key "
177 "encipherment", certFile);
178 return -1;
183 return 0;
187 static int
188 qcrypto_tls_creds_check_cert_key_purpose(QCryptoTLSCredsX509 *creds,
189 gnutls_x509_crt_t cert,
190 const char *certFile,
191 bool isServer,
192 Error **errp)
194 int status;
195 size_t i;
196 unsigned int purposeCritical;
197 unsigned int critical;
198 char *buffer = NULL;
199 size_t size;
200 bool allowClient = false, allowServer = false;
202 critical = 0;
203 for (i = 0; ; i++) {
204 size = 0;
205 status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer,
206 &size, NULL);
208 if (status == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
210 /* If there is no data at all, then we must allow
211 client/server to pass */
212 if (i == 0) {
213 allowServer = allowClient = true;
215 break;
217 if (status != GNUTLS_E_SHORT_MEMORY_BUFFER) {
218 error_setg(errp,
219 "Unable to query certificate %s key purpose: %s",
220 certFile, gnutls_strerror(status));
221 return -1;
224 buffer = g_new0(char, size);
226 status = gnutls_x509_crt_get_key_purpose_oid(cert, i, buffer,
227 &size, &purposeCritical);
229 if (status < 0) {
230 trace_qcrypto_tls_creds_x509_check_key_purpose(
231 creds, certFile, status, "<none>", purposeCritical);
232 g_free(buffer);
233 error_setg(errp,
234 "Unable to query certificate %s key purpose: %s",
235 certFile, gnutls_strerror(status));
236 return -1;
238 trace_qcrypto_tls_creds_x509_check_key_purpose(
239 creds, certFile, status, buffer, purposeCritical);
240 if (purposeCritical) {
241 critical = true;
244 if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_SERVER)) {
245 allowServer = true;
246 } else if (g_str_equal(buffer, GNUTLS_KP_TLS_WWW_CLIENT)) {
247 allowClient = true;
248 } else if (g_str_equal(buffer, GNUTLS_KP_ANY)) {
249 allowServer = allowClient = true;
252 g_free(buffer);
253 buffer = NULL;
256 if (isServer) {
257 if (!allowServer) {
258 if (critical) {
259 error_setg(errp,
260 "Certificate %s purpose does not allow "
261 "use with a TLS server", certFile);
262 return -1;
265 } else {
266 if (!allowClient) {
267 if (critical) {
268 error_setg(errp,
269 "Certificate %s purpose does not allow use "
270 "with a TLS client", certFile);
271 return -1;
276 return 0;
280 static int
281 qcrypto_tls_creds_check_cert(QCryptoTLSCredsX509 *creds,
282 gnutls_x509_crt_t cert,
283 const char *certFile,
284 bool isServer,
285 bool isCA,
286 Error **errp)
288 if (qcrypto_tls_creds_check_cert_times(cert, certFile,
289 isServer, isCA,
290 errp) < 0) {
291 return -1;
294 if (qcrypto_tls_creds_check_cert_basic_constraints(creds,
295 cert, certFile,
296 isServer, isCA,
297 errp) < 0) {
298 return -1;
301 if (qcrypto_tls_creds_check_cert_key_usage(creds,
302 cert, certFile,
303 isCA, errp) < 0) {
304 return -1;
307 if (!isCA &&
308 qcrypto_tls_creds_check_cert_key_purpose(creds,
309 cert, certFile,
310 isServer, errp) < 0) {
311 return -1;
314 return 0;
318 static int
319 qcrypto_tls_creds_check_cert_pair(gnutls_x509_crt_t cert,
320 const char *certFile,
321 gnutls_x509_crt_t *cacerts,
322 size_t ncacerts,
323 const char *cacertFile,
324 bool isServer,
325 Error **errp)
327 unsigned int status;
329 if (gnutls_x509_crt_list_verify(&cert, 1,
330 cacerts, ncacerts,
331 NULL, 0,
332 0, &status) < 0) {
333 error_setg(errp, isServer ?
334 "Unable to verify server certificate %s against "
335 "CA certificate %s" :
336 "Unable to verify client certificate %s against "
337 "CA certificate %s",
338 certFile, cacertFile);
339 return -1;
342 if (status != 0) {
343 const char *reason = "Invalid certificate";
345 if (status & GNUTLS_CERT_INVALID) {
346 reason = "The certificate is not trusted";
349 if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) {
350 reason = "The certificate hasn't got a known issuer";
353 if (status & GNUTLS_CERT_REVOKED) {
354 reason = "The certificate has been revoked";
357 #ifndef GNUTLS_1_0_COMPAT
358 if (status & GNUTLS_CERT_INSECURE_ALGORITHM) {
359 reason = "The certificate uses an insecure algorithm";
361 #endif
363 error_setg(errp,
364 "Our own certificate %s failed validation against %s: %s",
365 certFile, cacertFile, reason);
366 return -1;
369 return 0;
373 static gnutls_x509_crt_t
374 qcrypto_tls_creds_load_cert(QCryptoTLSCredsX509 *creds,
375 const char *certFile,
376 bool isServer,
377 Error **errp)
379 gnutls_datum_t data;
380 gnutls_x509_crt_t cert = NULL;
381 g_autofree char *buf = NULL;
382 gsize buflen;
383 GError *gerr = NULL;
384 int ret = -1;
385 int err;
387 trace_qcrypto_tls_creds_x509_load_cert(creds, isServer, certFile);
389 err = gnutls_x509_crt_init(&cert);
390 if (err < 0) {
391 error_setg(errp, "Unable to initialize certificate: %s",
392 gnutls_strerror(err));
393 goto cleanup;
396 if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) {
397 error_setg(errp, "Cannot load CA cert list %s: %s",
398 certFile, gerr->message);
399 g_error_free(gerr);
400 goto cleanup;
403 data.data = (unsigned char *)buf;
404 data.size = strlen(buf);
406 err = gnutls_x509_crt_import(cert, &data, GNUTLS_X509_FMT_PEM);
407 if (err < 0) {
408 error_setg(errp, isServer ?
409 "Unable to import server certificate %s: %s" :
410 "Unable to import client certificate %s: %s",
411 certFile,
412 gnutls_strerror(err));
413 goto cleanup;
416 ret = 0;
418 cleanup:
419 if (ret != 0) {
420 gnutls_x509_crt_deinit(cert);
421 cert = NULL;
423 return cert;
427 static int
428 qcrypto_tls_creds_load_ca_cert_list(QCryptoTLSCredsX509 *creds,
429 const char *certFile,
430 gnutls_x509_crt_t *certs,
431 unsigned int certMax,
432 size_t *ncerts,
433 Error **errp)
435 gnutls_datum_t data;
436 g_autofree char *buf = NULL;
437 gsize buflen;
438 GError *gerr = NULL;
440 *ncerts = 0;
441 trace_qcrypto_tls_creds_x509_load_cert_list(creds, certFile);
443 if (!g_file_get_contents(certFile, &buf, &buflen, &gerr)) {
444 error_setg(errp, "Cannot load CA cert list %s: %s",
445 certFile, gerr->message);
446 g_error_free(gerr);
447 return -1;
450 data.data = (unsigned char *)buf;
451 data.size = strlen(buf);
453 if (gnutls_x509_crt_list_import(certs, &certMax, &data,
454 GNUTLS_X509_FMT_PEM, 0) < 0) {
455 error_setg(errp,
456 "Unable to import CA certificate list %s",
457 certFile);
458 return -1;
460 *ncerts = certMax;
462 return 0;
466 #define MAX_CERTS 16
467 static int
468 qcrypto_tls_creds_x509_sanity_check(QCryptoTLSCredsX509 *creds,
469 bool isServer,
470 const char *cacertFile,
471 const char *certFile,
472 Error **errp)
474 gnutls_x509_crt_t cert = NULL;
475 gnutls_x509_crt_t cacerts[MAX_CERTS];
476 size_t ncacerts = 0;
477 size_t i;
478 int ret = -1;
480 memset(cacerts, 0, sizeof(cacerts));
481 if (certFile &&
482 access(certFile, R_OK) == 0) {
483 cert = qcrypto_tls_creds_load_cert(creds,
484 certFile, isServer,
485 errp);
486 if (!cert) {
487 goto cleanup;
490 if (access(cacertFile, R_OK) == 0) {
491 if (qcrypto_tls_creds_load_ca_cert_list(creds,
492 cacertFile, cacerts,
493 MAX_CERTS, &ncacerts,
494 errp) < 0) {
495 goto cleanup;
499 if (cert &&
500 qcrypto_tls_creds_check_cert(creds,
501 cert, certFile, isServer,
502 false, errp) < 0) {
503 goto cleanup;
506 for (i = 0; i < ncacerts; i++) {
507 if (qcrypto_tls_creds_check_cert(creds,
508 cacerts[i], cacertFile,
509 isServer, true, errp) < 0) {
510 goto cleanup;
514 if (cert && ncacerts &&
515 qcrypto_tls_creds_check_cert_pair(cert, certFile, cacerts,
516 ncacerts, cacertFile,
517 isServer, errp) < 0) {
518 goto cleanup;
521 ret = 0;
523 cleanup:
524 if (cert) {
525 gnutls_x509_crt_deinit(cert);
527 for (i = 0; i < ncacerts; i++) {
528 gnutls_x509_crt_deinit(cacerts[i]);
530 return ret;
534 static int
535 qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds,
536 Error **errp)
538 char *cacert = NULL, *cacrl = NULL, *cert = NULL,
539 *key = NULL, *dhparams = NULL;
540 int ret;
541 int rv = -1;
543 trace_qcrypto_tls_creds_x509_load(creds,
544 creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>");
546 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
547 if (qcrypto_tls_creds_get_path(&creds->parent_obj,
548 QCRYPTO_TLS_CREDS_X509_CA_CERT,
549 true, &cacert, errp) < 0 ||
550 qcrypto_tls_creds_get_path(&creds->parent_obj,
551 QCRYPTO_TLS_CREDS_X509_CA_CRL,
552 false, &cacrl, errp) < 0 ||
553 qcrypto_tls_creds_get_path(&creds->parent_obj,
554 QCRYPTO_TLS_CREDS_X509_SERVER_CERT,
555 true, &cert, errp) < 0 ||
556 qcrypto_tls_creds_get_path(&creds->parent_obj,
557 QCRYPTO_TLS_CREDS_X509_SERVER_KEY,
558 true, &key, errp) < 0 ||
559 qcrypto_tls_creds_get_path(&creds->parent_obj,
560 QCRYPTO_TLS_CREDS_DH_PARAMS,
561 false, &dhparams, errp) < 0) {
562 goto cleanup;
564 } else {
565 if (qcrypto_tls_creds_get_path(&creds->parent_obj,
566 QCRYPTO_TLS_CREDS_X509_CA_CERT,
567 true, &cacert, errp) < 0 ||
568 qcrypto_tls_creds_get_path(&creds->parent_obj,
569 QCRYPTO_TLS_CREDS_X509_CLIENT_CERT,
570 false, &cert, errp) < 0 ||
571 qcrypto_tls_creds_get_path(&creds->parent_obj,
572 QCRYPTO_TLS_CREDS_X509_CLIENT_KEY,
573 false, &key, errp) < 0) {
574 goto cleanup;
578 if (creds->sanityCheck &&
579 qcrypto_tls_creds_x509_sanity_check(creds,
580 creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
581 cacert, cert, errp) < 0) {
582 goto cleanup;
585 ret = gnutls_certificate_allocate_credentials(&creds->data);
586 if (ret < 0) {
587 error_setg(errp, "Cannot allocate credentials: '%s'",
588 gnutls_strerror(ret));
589 goto cleanup;
592 ret = gnutls_certificate_set_x509_trust_file(creds->data,
593 cacert,
594 GNUTLS_X509_FMT_PEM);
595 if (ret < 0) {
596 error_setg(errp, "Cannot load CA certificate '%s': %s",
597 cacert, gnutls_strerror(ret));
598 goto cleanup;
601 if (cert != NULL && key != NULL) {
602 char *password = NULL;
603 if (creds->passwordid) {
604 password = qcrypto_secret_lookup_as_utf8(creds->passwordid,
605 errp);
606 if (!password) {
607 goto cleanup;
610 ret = gnutls_certificate_set_x509_key_file2(creds->data,
611 cert, key,
612 GNUTLS_X509_FMT_PEM,
613 password,
615 g_free(password);
616 if (ret < 0) {
617 error_setg(errp, "Cannot load certificate '%s' & key '%s': %s",
618 cert, key, gnutls_strerror(ret));
619 goto cleanup;
623 if (cacrl != NULL) {
624 ret = gnutls_certificate_set_x509_crl_file(creds->data,
625 cacrl,
626 GNUTLS_X509_FMT_PEM);
627 if (ret < 0) {
628 error_setg(errp, "Cannot load CRL '%s': %s",
629 cacrl, gnutls_strerror(ret));
630 goto cleanup;
634 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
635 if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams,
636 &creds->parent_obj.dh_params,
637 errp) < 0) {
638 goto cleanup;
640 gnutls_certificate_set_dh_params(creds->data,
641 creds->parent_obj.dh_params);
644 rv = 0;
645 cleanup:
646 g_free(cacert);
647 g_free(cacrl);
648 g_free(cert);
649 g_free(key);
650 g_free(dhparams);
651 return rv;
655 static void
656 qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds)
658 if (creds->data) {
659 gnutls_certificate_free_credentials(creds->data);
660 creds->data = NULL;
662 if (creds->parent_obj.dh_params) {
663 gnutls_dh_params_deinit(creds->parent_obj.dh_params);
664 creds->parent_obj.dh_params = NULL;
669 #else /* ! CONFIG_GNUTLS */
672 static void
673 qcrypto_tls_creds_x509_load(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED,
674 Error **errp)
676 error_setg(errp, "TLS credentials support requires GNUTLS");
680 static void
681 qcrypto_tls_creds_x509_unload(QCryptoTLSCredsX509 *creds G_GNUC_UNUSED)
683 /* nada */
687 #endif /* ! CONFIG_GNUTLS */
690 static void
691 qcrypto_tls_creds_x509_prop_set_loaded(Object *obj,
692 bool value,
693 Error **errp)
695 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
697 qcrypto_tls_creds_x509_unload(creds);
698 if (value) {
699 qcrypto_tls_creds_x509_load(creds, errp);
704 #ifdef CONFIG_GNUTLS
707 static bool
708 qcrypto_tls_creds_x509_prop_get_loaded(Object *obj,
709 Error **errp G_GNUC_UNUSED)
711 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
713 return creds->data != NULL;
717 #else /* ! CONFIG_GNUTLS */
720 static bool
721 qcrypto_tls_creds_x509_prop_get_loaded(Object *obj G_GNUC_UNUSED,
722 Error **errp G_GNUC_UNUSED)
724 return false;
728 #endif /* ! CONFIG_GNUTLS */
731 static void
732 qcrypto_tls_creds_x509_prop_set_sanity(Object *obj,
733 bool value,
734 Error **errp G_GNUC_UNUSED)
736 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
738 creds->sanityCheck = value;
742 static void
743 qcrypto_tls_creds_x509_prop_set_passwordid(Object *obj,
744 const char *value,
745 Error **errp G_GNUC_UNUSED)
747 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
749 creds->passwordid = g_strdup(value);
753 static char *
754 qcrypto_tls_creds_x509_prop_get_passwordid(Object *obj,
755 Error **errp G_GNUC_UNUSED)
757 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
759 return g_strdup(creds->passwordid);
763 static bool
764 qcrypto_tls_creds_x509_prop_get_sanity(Object *obj,
765 Error **errp G_GNUC_UNUSED)
767 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
769 return creds->sanityCheck;
773 static void
774 qcrypto_tls_creds_x509_complete(UserCreatable *uc, Error **errp)
776 object_property_set_bool(OBJECT(uc), "loaded", true, errp);
780 static void
781 qcrypto_tls_creds_x509_init(Object *obj)
783 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
785 creds->sanityCheck = true;
789 static void
790 qcrypto_tls_creds_x509_finalize(Object *obj)
792 QCryptoTLSCredsX509 *creds = QCRYPTO_TLS_CREDS_X509(obj);
794 g_free(creds->passwordid);
795 qcrypto_tls_creds_x509_unload(creds);
799 static void
800 qcrypto_tls_creds_x509_class_init(ObjectClass *oc, void *data)
802 UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
804 ucc->complete = qcrypto_tls_creds_x509_complete;
806 object_class_property_add_bool(oc, "loaded",
807 qcrypto_tls_creds_x509_prop_get_loaded,
808 qcrypto_tls_creds_x509_prop_set_loaded);
809 object_class_property_add_bool(oc, "sanity-check",
810 qcrypto_tls_creds_x509_prop_get_sanity,
811 qcrypto_tls_creds_x509_prop_set_sanity);
812 object_class_property_add_str(oc, "passwordid",
813 qcrypto_tls_creds_x509_prop_get_passwordid,
814 qcrypto_tls_creds_x509_prop_set_passwordid);
818 static const TypeInfo qcrypto_tls_creds_x509_info = {
819 .parent = TYPE_QCRYPTO_TLS_CREDS,
820 .name = TYPE_QCRYPTO_TLS_CREDS_X509,
821 .instance_size = sizeof(QCryptoTLSCredsX509),
822 .instance_init = qcrypto_tls_creds_x509_init,
823 .instance_finalize = qcrypto_tls_creds_x509_finalize,
824 .class_size = sizeof(QCryptoTLSCredsX509Class),
825 .class_init = qcrypto_tls_creds_x509_class_init,
826 .interfaces = (InterfaceInfo[]) {
827 { TYPE_USER_CREATABLE },
833 static void
834 qcrypto_tls_creds_x509_register_types(void)
836 type_register_static(&qcrypto_tls_creds_x509_info);
840 type_init(qcrypto_tls_creds_x509_register_types);