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diff --git a/src/lib/libssl/ssl_cert.c b/src/lib/libssl/ssl_cert.c
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--- a/src/lib/libssl/ssl_cert.c
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1/* $OpenBSD: ssl_cert.c,v 1.107 2023/07/08 16:40:13 beck Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111/* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116
117#include <sys/types.h>
118
119#include <dirent.h>
120#include <stdio.h>
121#include <unistd.h>
122
123#include <openssl/bio.h>
124#include <openssl/bn.h>
125#include <openssl/dh.h>
126#include <openssl/objects.h>
127#include <openssl/opensslconf.h>
128#include <openssl/pem.h>
129#include <openssl/x509v3.h>
130
131#include "ssl_local.h"
132
133int
134SSL_get_ex_data_X509_STORE_CTX_idx(void)
135{
136 static volatile int ssl_x509_store_ctx_idx = -1;
137 int got_write_lock = 0;
138
139 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
140
141 if (ssl_x509_store_ctx_idx < 0) {
142 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
143 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
144 got_write_lock = 1;
145
146 if (ssl_x509_store_ctx_idx < 0) {
147 ssl_x509_store_ctx_idx =
148 X509_STORE_CTX_get_ex_new_index(
149 0, "SSL for verify callback", NULL, NULL, NULL);
150 }
151 }
152
153 if (got_write_lock)
154 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
155 else
156 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
157
158 return ssl_x509_store_ctx_idx;
159}
160LSSL_ALIAS(SSL_get_ex_data_X509_STORE_CTX_idx);
161
162SSL_CERT *
163ssl_cert_new(void)
164{
165 SSL_CERT *ret;
166
167 ret = calloc(1, sizeof(SSL_CERT));
168 if (ret == NULL) {
169 SSLerrorx(ERR_R_MALLOC_FAILURE);
170 return (NULL);
171 }
172 ret->key = &(ret->pkeys[SSL_PKEY_RSA]);
173 ret->references = 1;
174 ret->security_cb = ssl_security_default_cb;
175 ret->security_level = OPENSSL_TLS_SECURITY_LEVEL;
176 ret->security_ex_data = NULL;
177 return (ret);
178}
179
180SSL_CERT *
181ssl_cert_dup(SSL_CERT *cert)
182{
183 SSL_CERT *ret;
184 int i;
185
186 ret = calloc(1, sizeof(SSL_CERT));
187 if (ret == NULL) {
188 SSLerrorx(ERR_R_MALLOC_FAILURE);
189 return (NULL);
190 }
191
192 /*
193 * same as ret->key = ret->pkeys + (cert->key - cert->pkeys),
194 * if you find that more readable
195 */
196 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];
197
198 ret->valid = cert->valid;
199 ret->mask_k = cert->mask_k;
200 ret->mask_a = cert->mask_a;
201
202 if (cert->dhe_params != NULL) {
203 ret->dhe_params = DHparams_dup(cert->dhe_params);
204 if (ret->dhe_params == NULL) {
205 SSLerrorx(ERR_R_DH_LIB);
206 goto err;
207 }
208 }
209 ret->dhe_params_cb = cert->dhe_params_cb;
210 ret->dhe_params_auto = cert->dhe_params_auto;
211
212 for (i = 0; i < SSL_PKEY_NUM; i++) {
213 if (cert->pkeys[i].x509 != NULL) {
214 ret->pkeys[i].x509 = cert->pkeys[i].x509;
215 X509_up_ref(ret->pkeys[i].x509);
216 }
217
218 if (cert->pkeys[i].privatekey != NULL) {
219 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;
220 EVP_PKEY_up_ref(ret->pkeys[i].privatekey);
221 switch (i) {
222 /*
223 * If there was anything special to do for
224 * certain types of keys, we'd do it here.
225 * (Nothing at the moment, I think.)
226 */
227
228 case SSL_PKEY_RSA:
229 /* We have an RSA key. */
230 break;
231
232 case SSL_PKEY_ECC:
233 /* We have an ECC key */
234 break;
235
236 case SSL_PKEY_GOST01:
237 /* We have a GOST key */
238 break;
239
240 default:
241 /* Can't happen. */
242 SSLerrorx(SSL_R_LIBRARY_BUG);
243 }
244 }
245
246 if (cert->pkeys[i].chain != NULL) {
247 if ((ret->pkeys[i].chain =
248 X509_chain_up_ref(cert->pkeys[i].chain)) == NULL)
249 goto err;
250 }
251 }
252
253 ret->security_cb = cert->security_cb;
254 ret->security_level = cert->security_level;
255 ret->security_ex_data = cert->security_ex_data;
256
257 /*
258 * ret->extra_certs *should* exist, but currently the own certificate
259 * chain is held inside SSL_CTX
260 */
261
262 ret->references = 1;
263
264 return (ret);
265
266 err:
267 DH_free(ret->dhe_params);
268
269 for (i = 0; i < SSL_PKEY_NUM; i++) {
270 X509_free(ret->pkeys[i].x509);
271 EVP_PKEY_free(ret->pkeys[i].privatekey);
272 sk_X509_pop_free(ret->pkeys[i].chain, X509_free);
273 }
274 free (ret);
275 return NULL;
276}
277
278
279void
280ssl_cert_free(SSL_CERT *c)
281{
282 int i;
283
284 if (c == NULL)
285 return;
286
287 i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT);
288 if (i > 0)
289 return;
290
291 DH_free(c->dhe_params);
292
293 for (i = 0; i < SSL_PKEY_NUM; i++) {
294 X509_free(c->pkeys[i].x509);
295 EVP_PKEY_free(c->pkeys[i].privatekey);
296 sk_X509_pop_free(c->pkeys[i].chain, X509_free);
297 }
298
299 free(c);
300}
301
302SSL_CERT *
303ssl_get0_cert(SSL_CTX *ctx, SSL *ssl)
304{
305 if (ssl != NULL)
306 return ssl->cert;
307
308 return ctx->cert;
309}
310
311int
312ssl_cert_set0_chain(SSL_CTX *ctx, SSL *ssl, STACK_OF(X509) *chain)
313{
314 SSL_CERT *ssl_cert;
315 SSL_CERT_PKEY *cpk;
316 X509 *x509;
317 int ssl_err;
318 int i;
319
320 if ((ssl_cert = ssl_get0_cert(ctx, ssl)) == NULL)
321 return 0;
322
323 if ((cpk = ssl_cert->key) == NULL)
324 return 0;
325
326 for (i = 0; i < sk_X509_num(chain); i++) {
327 x509 = sk_X509_value(chain, i);
328 if (!ssl_security_cert(ctx, ssl, x509, 0, &ssl_err)) {
329 SSLerrorx(ssl_err);
330 return 0;
331 }
332 }
333
334 sk_X509_pop_free(cpk->chain, X509_free);
335 cpk->chain = chain;
336
337 return 1;
338}
339
340int
341ssl_cert_set1_chain(SSL_CTX *ctx, SSL *ssl, STACK_OF(X509) *chain)
342{
343 STACK_OF(X509) *new_chain = NULL;
344
345 if (chain != NULL) {
346 if ((new_chain = X509_chain_up_ref(chain)) == NULL)
347 return 0;
348 }
349 if (!ssl_cert_set0_chain(ctx, ssl, new_chain)) {
350 sk_X509_pop_free(new_chain, X509_free);
351 return 0;
352 }
353
354 return 1;
355}
356
357int
358ssl_cert_add0_chain_cert(SSL_CTX *ctx, SSL *ssl, X509 *cert)
359{
360 SSL_CERT *ssl_cert;
361 SSL_CERT_PKEY *cpk;
362 int ssl_err;
363
364 if ((ssl_cert = ssl_get0_cert(ctx, ssl)) == NULL)
365 return 0;
366
367 if ((cpk = ssl_cert->key) == NULL)
368 return 0;
369
370 if (!ssl_security_cert(ctx, ssl, cert, 0, &ssl_err)) {
371 SSLerrorx(ssl_err);
372 return 0;
373 }
374
375 if (cpk->chain == NULL) {
376 if ((cpk->chain = sk_X509_new_null()) == NULL)
377 return 0;
378 }
379 if (!sk_X509_push(cpk->chain, cert))
380 return 0;
381
382 return 1;
383}
384
385int
386ssl_cert_add1_chain_cert(SSL_CTX *ctx, SSL *ssl, X509 *cert)
387{
388 if (!ssl_cert_add0_chain_cert(ctx, ssl, cert))
389 return 0;
390
391 X509_up_ref(cert);
392
393 return 1;
394}
395
396int
397ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *certs)
398{
399 X509_STORE_CTX *ctx = NULL;
400 X509_VERIFY_PARAM *param;
401 X509 *cert;
402 int ret = 0;
403
404 if (sk_X509_num(certs) < 1)
405 goto err;
406
407 if ((ctx = X509_STORE_CTX_new()) == NULL)
408 goto err;
409
410 cert = sk_X509_value(certs, 0);
411 if (!X509_STORE_CTX_init(ctx, s->ctx->cert_store, cert, certs)) {
412 SSLerror(s, ERR_R_X509_LIB);
413 goto err;
414 }
415 X509_STORE_CTX_set_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s);
416
417 /*
418 * We need to inherit the verify parameters. These can be
419 * determined by the context: if its a server it will verify
420 * SSL client certificates or vice versa.
421 */
422 X509_STORE_CTX_set_default(ctx, s->server ? "ssl_client" : "ssl_server");
423
424 param = X509_STORE_CTX_get0_param(ctx);
425
426 X509_VERIFY_PARAM_set_auth_level(param, SSL_get_security_level(s));
427
428 /*
429 * Anything non-default in "param" should overwrite anything
430 * in the ctx.
431 */
432 X509_VERIFY_PARAM_set1(param, s->param);
433
434 if (s->verify_callback)
435 X509_STORE_CTX_set_verify_cb(ctx, s->verify_callback);
436
437 if (s->ctx->app_verify_callback != NULL)
438 ret = s->ctx->app_verify_callback(ctx,
439 s->ctx->app_verify_arg);
440 else
441 ret = X509_verify_cert(ctx);
442
443 s->verify_result = X509_STORE_CTX_get_error(ctx);
444 sk_X509_pop_free(s->s3->hs.verified_chain, X509_free);
445 s->s3->hs.verified_chain = NULL;
446 if (X509_STORE_CTX_get0_chain(ctx) != NULL) {
447 s->s3->hs.verified_chain = X509_STORE_CTX_get1_chain(ctx);
448 if (s->s3->hs.verified_chain == NULL) {
449 SSLerrorx(ERR_R_MALLOC_FAILURE);
450 ret = 0;
451 }
452 }
453
454 err:
455 X509_STORE_CTX_free(ctx);
456
457 return (ret);
458}
459
460static void
461set_client_CA_list(STACK_OF(X509_NAME) **ca_list,
462 STACK_OF(X509_NAME) *name_list)
463{
464 sk_X509_NAME_pop_free(*ca_list, X509_NAME_free);
465 *ca_list = name_list;
466}
467
468STACK_OF(X509_NAME) *
469SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk)
470{
471 int i;
472 STACK_OF(X509_NAME) *ret;
473 X509_NAME *name = NULL;
474
475 if ((ret = sk_X509_NAME_new_null()) == NULL)
476 goto err;
477
478 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
479 if ((name = X509_NAME_dup(sk_X509_NAME_value(sk, i))) == NULL)
480 goto err;
481 if (!sk_X509_NAME_push(ret, name))
482 goto err;
483 }
484 return (ret);
485
486 err:
487 X509_NAME_free(name);
488 sk_X509_NAME_pop_free(ret, X509_NAME_free);
489 return NULL;
490}
491LSSL_ALIAS(SSL_dup_CA_list);
492
493void
494SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list)
495{
496 set_client_CA_list(&(s->client_CA), name_list);
497}
498LSSL_ALIAS(SSL_set_client_CA_list);
499
500void
501SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list)
502{
503 set_client_CA_list(&(ctx->client_CA), name_list);
504}
505LSSL_ALIAS(SSL_CTX_set_client_CA_list);
506
507STACK_OF(X509_NAME) *
508SSL_CTX_get_client_CA_list(const SSL_CTX *ctx)
509{
510 return (ctx->client_CA);
511}
512LSSL_ALIAS(SSL_CTX_get_client_CA_list);
513
514STACK_OF(X509_NAME) *
515SSL_get_client_CA_list(const SSL *s)
516{
517 if (!s->server) {
518 /* We are in the client. */
519 if ((s->version >> 8) == SSL3_VERSION_MAJOR)
520 return (s->s3->hs.tls12.ca_names);
521 else
522 return (NULL);
523 } else {
524 if (s->client_CA != NULL)
525 return (s->client_CA);
526 else
527 return (s->ctx->client_CA);
528 }
529}
530LSSL_ALIAS(SSL_get_client_CA_list);
531
532static int
533add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x)
534{
535 X509_NAME *name;
536
537 if (x == NULL)
538 return (0);
539 if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL))
540 return (0);
541
542 if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL)
543 return (0);
544
545 if (!sk_X509_NAME_push(*sk, name)) {
546 X509_NAME_free(name);
547 return (0);
548 }
549 return (1);
550}
551
552int
553SSL_add_client_CA(SSL *ssl, X509 *x)
554{
555 return (add_client_CA(&(ssl->client_CA), x));
556}
557LSSL_ALIAS(SSL_add_client_CA);
558
559int
560SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x)
561{
562 return (add_client_CA(&(ctx->client_CA), x));
563}
564LSSL_ALIAS(SSL_CTX_add_client_CA);
565
566static int
567xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
568{
569 return (X509_NAME_cmp(*a, *b));
570}
571
572/*!
573 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
574 * it doesn't really have anything to do with clients (except that a common use
575 * for a stack of CAs is to send it to the client). Actually, it doesn't have
576 * much to do with CAs, either, since it will load any old cert.
577 * \param file the file containing one or more certs.
578 * \return a ::STACK containing the certs.
579 */
580STACK_OF(X509_NAME) *
581SSL_load_client_CA_file(const char *file)
582{
583 BIO *in;
584 X509 *x = NULL;
585 X509_NAME *xn = NULL;
586 STACK_OF(X509_NAME) *ret = NULL, *sk;
587
588 sk = sk_X509_NAME_new(xname_cmp);
589
590 in = BIO_new(BIO_s_file());
591
592 if ((sk == NULL) || (in == NULL)) {
593 SSLerrorx(ERR_R_MALLOC_FAILURE);
594 goto err;
595 }
596
597 if (!BIO_read_filename(in, file))
598 goto err;
599
600 for (;;) {
601 if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL)
602 break;
603 if (ret == NULL) {
604 ret = sk_X509_NAME_new_null();
605 if (ret == NULL) {
606 SSLerrorx(ERR_R_MALLOC_FAILURE);
607 goto err;
608 }
609 }
610 if ((xn = X509_get_subject_name(x)) == NULL)
611 goto err;
612 /* check for duplicates */
613 xn = X509_NAME_dup(xn);
614 if (xn == NULL)
615 goto err;
616 if (sk_X509_NAME_find(sk, xn) >= 0)
617 X509_NAME_free(xn);
618 else {
619 if (!sk_X509_NAME_push(sk, xn))
620 goto err;
621 if (!sk_X509_NAME_push(ret, xn))
622 goto err;
623 }
624 }
625
626 if (0) {
627 err:
628 sk_X509_NAME_pop_free(ret, X509_NAME_free);
629 ret = NULL;
630 }
631 sk_X509_NAME_free(sk);
632 BIO_free(in);
633 X509_free(x);
634 if (ret != NULL)
635 ERR_clear_error();
636
637 return (ret);
638}
639LSSL_ALIAS(SSL_load_client_CA_file);
640
641/*!
642 * Add a file of certs to a stack.
643 * \param stack the stack to add to.
644 * \param file the file to add from. All certs in this file that are not
645 * already in the stack will be added.
646 * \return 1 for success, 0 for failure. Note that in the case of failure some
647 * certs may have been added to \c stack.
648 */
649
650int
651SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
652 const char *file)
653{
654 BIO *in;
655 X509 *x = NULL;
656 X509_NAME *xn = NULL;
657 int ret = 1;
658 int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b);
659
660 oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp);
661
662 in = BIO_new(BIO_s_file());
663
664 if (in == NULL) {
665 SSLerrorx(ERR_R_MALLOC_FAILURE);
666 goto err;
667 }
668
669 if (!BIO_read_filename(in, file))
670 goto err;
671
672 for (;;) {
673 if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL)
674 break;
675 if ((xn = X509_get_subject_name(x)) == NULL)
676 goto err;
677 xn = X509_NAME_dup(xn);
678 if (xn == NULL)
679 goto err;
680 if (sk_X509_NAME_find(stack, xn) >= 0)
681 X509_NAME_free(xn);
682 else
683 if (!sk_X509_NAME_push(stack, xn))
684 goto err;
685 }
686
687 ERR_clear_error();
688
689 if (0) {
690 err:
691 ret = 0;
692 }
693 BIO_free(in);
694 X509_free(x);
695
696 (void)sk_X509_NAME_set_cmp_func(stack, oldcmp);
697
698 return ret;
699}
700LSSL_ALIAS(SSL_add_file_cert_subjects_to_stack);
701
702/*!
703 * Add a directory of certs to a stack.
704 * \param stack the stack to append to.
705 * \param dir the directory to append from. All files in this directory will be
706 * examined as potential certs. Any that are acceptable to
707 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will
708 * be included.
709 * \return 1 for success, 0 for failure. Note that in the case of failure some
710 * certs may have been added to \c stack.
711 */
712
713int
714SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *dir)
715{
716 DIR *dirp = NULL;
717 char *path = NULL;
718 int ret = 0;
719
720 dirp = opendir(dir);
721 if (dirp) {
722 struct dirent *dp;
723 while ((dp = readdir(dirp)) != NULL) {
724 if (asprintf(&path, "%s/%s", dir, dp->d_name) != -1) {
725 ret = SSL_add_file_cert_subjects_to_stack(
726 stack, path);
727 free(path);
728 }
729 if (!ret)
730 break;
731 }
732 (void) closedir(dirp);
733 }
734 if (!ret) {
735 SYSerror(errno);
736 ERR_asprintf_error_data("opendir ('%s')", dir);
737 SSLerrorx(ERR_R_SYS_LIB);
738 }
739 return ret;
740}
741LSSL_ALIAS(SSL_add_dir_cert_subjects_to_stack);
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