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1/*! \file ssl/ssl_cert.c */
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) 1999 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
107#include <stdio.h>
108
109#include "e_os.h"
110#ifndef NO_SYS_TYPES_H
111# include <sys/types.h>
112#endif
113
114#if !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_VMS) && !defined(NeXT) && !defined(MAC_OS_pre_X)
115#include <dirent.h>
116#endif
117
118#if defined(WIN32)
119#include <windows.h>
120#include <tchar.h>
121#endif
122
123#ifdef NeXT
124#include <sys/dir.h>
125#define dirent direct
126#endif
127
128#include <openssl/objects.h>
129#include <openssl/bio.h>
130#include <openssl/pem.h>
131#include <openssl/x509v3.h>
132#include "ssl_locl.h"
133#include <openssl/fips.h>
134
135int SSL_get_ex_data_X509_STORE_CTX_idx(void)
136 {
137 static volatile int ssl_x509_store_ctx_idx= -1;
138
139 if (ssl_x509_store_ctx_idx < 0)
140 {
141 /* any write lock will do; usually this branch
142 * will only be taken once anyway */
143 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
144
145 if (ssl_x509_store_ctx_idx < 0)
146 {
147 ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
148 0,"SSL for verify callback",NULL,NULL,NULL);
149 }
150
151 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
152 }
153 return ssl_x509_store_ctx_idx;
154 }
155
156CERT *ssl_cert_new(void)
157 {
158 CERT *ret;
159
160 ret=(CERT *)OPENSSL_malloc(sizeof(CERT));
161 if (ret == NULL)
162 {
163 SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);
164 return(NULL);
165 }
166 memset(ret,0,sizeof(CERT));
167
168 ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
169 ret->references=1;
170
171 return(ret);
172 }
173
174CERT *ssl_cert_dup(CERT *cert)
175 {
176 CERT *ret;
177 int i;
178
179 ret = (CERT *)OPENSSL_malloc(sizeof(CERT));
180 if (ret == NULL)
181 {
182 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);
183 return(NULL);
184 }
185
186 memset(ret, 0, sizeof(CERT));
187
188 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];
189 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),
190 * if you find that more readable */
191
192 ret->valid = cert->valid;
193 ret->mask = cert->mask;
194 ret->export_mask = cert->export_mask;
195
196#ifndef OPENSSL_NO_RSA
197 if (cert->rsa_tmp != NULL)
198 {
199 RSA_up_ref(cert->rsa_tmp);
200 ret->rsa_tmp = cert->rsa_tmp;
201 }
202 ret->rsa_tmp_cb = cert->rsa_tmp_cb;
203#endif
204
205#ifndef OPENSSL_NO_DH
206 if (cert->dh_tmp != NULL)
207 {
208 /* DH parameters don't have a reference count */
209 ret->dh_tmp = DHparams_dup(cert->dh_tmp);
210 if (ret->dh_tmp == NULL)
211 {
212 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB);
213 goto err;
214 }
215 if (cert->dh_tmp->priv_key)
216 {
217 BIGNUM *b = BN_dup(cert->dh_tmp->priv_key);
218 if (!b)
219 {
220 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
221 goto err;
222 }
223 ret->dh_tmp->priv_key = b;
224 }
225 if (cert->dh_tmp->pub_key)
226 {
227 BIGNUM *b = BN_dup(cert->dh_tmp->pub_key);
228 if (!b)
229 {
230 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
231 goto err;
232 }
233 ret->dh_tmp->pub_key = b;
234 }
235 }
236 ret->dh_tmp_cb = cert->dh_tmp_cb;
237#endif
238
239 for (i = 0; i < SSL_PKEY_NUM; i++)
240 {
241 if (cert->pkeys[i].x509 != NULL)
242 {
243 ret->pkeys[i].x509 = cert->pkeys[i].x509;
244 CRYPTO_add(&ret->pkeys[i].x509->references, 1,
245 CRYPTO_LOCK_X509);
246 }
247
248 if (cert->pkeys[i].privatekey != NULL)
249 {
250 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;
251 CRYPTO_add(&ret->pkeys[i].privatekey->references, 1,
252 CRYPTO_LOCK_EVP_PKEY);
253
254 switch(i)
255 {
256 /* If there was anything special to do for
257 * certain types of keys, we'd do it here.
258 * (Nothing at the moment, I think.) */
259
260 case SSL_PKEY_RSA_ENC:
261 case SSL_PKEY_RSA_SIGN:
262 /* We have an RSA key. */
263 break;
264
265 case SSL_PKEY_DSA_SIGN:
266 /* We have a DSA key. */
267 break;
268
269 case SSL_PKEY_DH_RSA:
270 case SSL_PKEY_DH_DSA:
271 /* We have a DH key. */
272 break;
273
274 default:
275 /* Can't happen. */
276 SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);
277 }
278 }
279 }
280
281 /* ret->extra_certs *should* exist, but currently the own certificate
282 * chain is held inside SSL_CTX */
283
284 ret->references=1;
285
286 return(ret);
287
288#ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */
289err:
290#endif
291#ifndef OPENSSL_NO_RSA
292 if (ret->rsa_tmp != NULL)
293 RSA_free(ret->rsa_tmp);
294#endif
295#ifndef OPENSSL_NO_DH
296 if (ret->dh_tmp != NULL)
297 DH_free(ret->dh_tmp);
298#endif
299
300 for (i = 0; i < SSL_PKEY_NUM; i++)
301 {
302 if (ret->pkeys[i].x509 != NULL)
303 X509_free(ret->pkeys[i].x509);
304 if (ret->pkeys[i].privatekey != NULL)
305 EVP_PKEY_free(ret->pkeys[i].privatekey);
306 }
307
308 return NULL;
309 }
310
311
312void ssl_cert_free(CERT *c)
313 {
314 int i;
315
316 if(c == NULL)
317 return;
318
319 i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);
320#ifdef REF_PRINT
321 REF_PRINT("CERT",c);
322#endif
323 if (i > 0) return;
324#ifdef REF_CHECK
325 if (i < 0)
326 {
327 fprintf(stderr,"ssl_cert_free, bad reference count\n");
328 abort(); /* ok */
329 }
330#endif
331
332#ifndef OPENSSL_NO_RSA
333 if (c->rsa_tmp) RSA_free(c->rsa_tmp);
334#endif
335#ifndef OPENSSL_NO_DH
336 if (c->dh_tmp) DH_free(c->dh_tmp);
337#endif
338
339 for (i=0; i<SSL_PKEY_NUM; i++)
340 {
341 if (c->pkeys[i].x509 != NULL)
342 X509_free(c->pkeys[i].x509);
343 if (c->pkeys[i].privatekey != NULL)
344 EVP_PKEY_free(c->pkeys[i].privatekey);
345#if 0
346 if (c->pkeys[i].publickey != NULL)
347 EVP_PKEY_free(c->pkeys[i].publickey);
348#endif
349 }
350 OPENSSL_free(c);
351 }
352
353int ssl_cert_inst(CERT **o)
354 {
355 /* Create a CERT if there isn't already one
356 * (which cannot really happen, as it is initially created in
357 * SSL_CTX_new; but the earlier code usually allows for that one
358 * being non-existant, so we follow that behaviour, as it might
359 * turn out that there actually is a reason for it -- but I'm
360 * not sure that *all* of the existing code could cope with
361 * s->cert being NULL, otherwise we could do without the
362 * initialization in SSL_CTX_new).
363 */
364
365 if (o == NULL)
366 {
367 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER);
368 return(0);
369 }
370 if (*o == NULL)
371 {
372 if ((*o = ssl_cert_new()) == NULL)
373 {
374 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE);
375 return(0);
376 }
377 }
378 return(1);
379 }
380
381
382SESS_CERT *ssl_sess_cert_new(void)
383 {
384 SESS_CERT *ret;
385
386 ret = OPENSSL_malloc(sizeof *ret);
387 if (ret == NULL)
388 {
389 SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE);
390 return NULL;
391 }
392
393 memset(ret, 0 ,sizeof *ret);
394 ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]);
395 ret->references = 1;
396
397 return ret;
398 }
399
400void ssl_sess_cert_free(SESS_CERT *sc)
401 {
402 int i;
403
404 if (sc == NULL)
405 return;
406
407 i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT);
408#ifdef REF_PRINT
409 REF_PRINT("SESS_CERT", sc);
410#endif
411 if (i > 0)
412 return;
413#ifdef REF_CHECK
414 if (i < 0)
415 {
416 fprintf(stderr,"ssl_sess_cert_free, bad reference count\n");
417 abort(); /* ok */
418 }
419#endif
420
421 /* i == 0 */
422 if (sc->cert_chain != NULL)
423 sk_X509_pop_free(sc->cert_chain, X509_free);
424 for (i = 0; i < SSL_PKEY_NUM; i++)
425 {
426 if (sc->peer_pkeys[i].x509 != NULL)
427 X509_free(sc->peer_pkeys[i].x509);
428#if 0 /* We don't have the peer's private key. These lines are just
429 * here as a reminder that we're still using a not-quite-appropriate
430 * data structure. */
431 if (sc->peer_pkeys[i].privatekey != NULL)
432 EVP_PKEY_free(sc->peer_pkeys[i].privatekey);
433#endif
434 }
435
436#ifndef OPENSSL_NO_RSA
437 if (sc->peer_rsa_tmp != NULL)
438 RSA_free(sc->peer_rsa_tmp);
439#endif
440#ifndef OPENSSL_NO_DH
441 if (sc->peer_dh_tmp != NULL)
442 DH_free(sc->peer_dh_tmp);
443#endif
444
445 OPENSSL_free(sc);
446 }
447
448int ssl_set_peer_cert_type(SESS_CERT *sc,int type)
449 {
450 sc->peer_cert_type = type;
451 return(1);
452 }
453
454int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
455 {
456 X509 *x;
457 int i;
458 X509_STORE_CTX ctx;
459
460 if ((sk == NULL) || (sk_X509_num(sk) == 0))
461 return(0);
462
463 x=sk_X509_value(sk,0);
464 if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk))
465 {
466 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);
467 return(0);
468 }
469 if (SSL_get_verify_depth(s) >= 0)
470 X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
471 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);
472
473 /* We need to set the verify purpose. The purpose can be determined by
474 * the context: if its a server it will verify SSL client certificates
475 * or vice versa.
476 */
477 if (s->server)
478 i = X509_PURPOSE_SSL_CLIENT;
479 else
480 i = X509_PURPOSE_SSL_SERVER;
481
482 X509_STORE_CTX_purpose_inherit(&ctx, i, s->purpose, s->trust);
483
484 if (s->verify_callback)
485 X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
486
487 if (s->ctx->app_verify_callback != NULL)
488#if 1 /* new with OpenSSL 0.9.7 */
489 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg);
490#else
491 i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */
492#endif
493 else
494 {
495#ifndef OPENSSL_NO_X509_VERIFY
496 i=X509_verify_cert(&ctx);
497#else
498 i=0;
499 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
500 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
501#endif
502 }
503
504 s->verify_result=ctx.error;
505 X509_STORE_CTX_cleanup(&ctx);
506
507 return(i);
508 }
509
510static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list)
511 {
512 if (*ca_list != NULL)
513 sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);
514
515 *ca_list=name_list;
516 }
517
518STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk)
519 {
520 int i;
521 STACK_OF(X509_NAME) *ret;
522 X509_NAME *name;
523
524 ret=sk_X509_NAME_new_null();
525 for (i=0; i<sk_X509_NAME_num(sk); i++)
526 {
527 name=X509_NAME_dup(sk_X509_NAME_value(sk,i));
528 if ((name == NULL) || !sk_X509_NAME_push(ret,name))
529 {
530 sk_X509_NAME_pop_free(ret,X509_NAME_free);
531 return(NULL);
532 }
533 }
534 return(ret);
535 }
536
537void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list)
538 {
539 set_client_CA_list(&(s->client_CA),name_list);
540 }
541
542void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list)
543 {
544 set_client_CA_list(&(ctx->client_CA),name_list);
545 }
546
547STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx)
548 {
549 return(ctx->client_CA);
550 }
551
552STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s)
553 {
554 if (s->type == SSL_ST_CONNECT)
555 { /* we are in the client */
556 if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
557 (s->s3 != NULL))
558 return(s->s3->tmp.ca_names);
559 else
560 return(NULL);
561 }
562 else
563 {
564 if (s->client_CA != NULL)
565 return(s->client_CA);
566 else
567 return(s->ctx->client_CA);
568 }
569 }
570
571static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x)
572 {
573 X509_NAME *name;
574
575 if (x == NULL) return(0);
576 if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL))
577 return(0);
578
579 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
580 return(0);
581
582 if (!sk_X509_NAME_push(*sk,name))
583 {
584 X509_NAME_free(name);
585 return(0);
586 }
587 return(1);
588 }
589
590int SSL_add_client_CA(SSL *ssl,X509 *x)
591 {
592 return(add_client_CA(&(ssl->client_CA),x));
593 }
594
595int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x)
596 {
597 return(add_client_CA(&(ctx->client_CA),x));
598 }
599
600static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
601 {
602 return(X509_NAME_cmp(*a,*b));
603 }
604
605#ifndef OPENSSL_NO_STDIO
606/*!
607 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
608 * it doesn't really have anything to do with clients (except that a common use
609 * for a stack of CAs is to send it to the client). Actually, it doesn't have
610 * much to do with CAs, either, since it will load any old cert.
611 * \param file the file containing one or more certs.
612 * \return a ::STACK containing the certs.
613 */
614STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
615 {
616 BIO *in;
617 X509 *x=NULL;
618 X509_NAME *xn=NULL;
619 STACK_OF(X509_NAME) *ret = NULL,*sk;
620
621 sk=sk_X509_NAME_new(xname_cmp);
622
623 in=BIO_new(BIO_s_file_internal());
624
625 if ((sk == NULL) || (in == NULL))
626 {
627 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
628 goto err;
629 }
630
631 if (!BIO_read_filename(in,file))
632 goto err;
633
634 for (;;)
635 {
636 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
637 break;
638 if (ret == NULL)
639 {
640 ret = sk_X509_NAME_new_null();
641 if (ret == NULL)
642 {
643 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
644 goto err;
645 }
646 }
647 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
648 /* check for duplicates */
649 xn=X509_NAME_dup(xn);
650 if (xn == NULL) goto err;
651 if (sk_X509_NAME_find(sk,xn) >= 0)
652 X509_NAME_free(xn);
653 else
654 {
655 sk_X509_NAME_push(sk,xn);
656 sk_X509_NAME_push(ret,xn);
657 }
658 }
659
660 if (0)
661 {
662err:
663 if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free);
664 ret=NULL;
665 }
666 if (sk != NULL) sk_X509_NAME_free(sk);
667 if (in != NULL) BIO_free(in);
668 if (x != NULL) X509_free(x);
669 if (ret != NULL)
670 ERR_clear_error();
671 return(ret);
672 }
673#endif
674
675/*!
676 * Add a file of certs to a stack.
677 * \param stack the stack to add to.
678 * \param file the file to add from. All certs in this file that are not
679 * already in the stack will be added.
680 * \return 1 for success, 0 for failure. Note that in the case of failure some
681 * certs may have been added to \c stack.
682 */
683
684int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
685 const char *file)
686 {
687 BIO *in;
688 X509 *x=NULL;
689 X509_NAME *xn=NULL;
690 int ret=1;
691 int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b);
692
693 oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp);
694
695 in=BIO_new(BIO_s_file_internal());
696
697 if (in == NULL)
698 {
699 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
700 goto err;
701 }
702
703 if (!BIO_read_filename(in,file))
704 goto err;
705
706 for (;;)
707 {
708 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
709 break;
710 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
711 xn=X509_NAME_dup(xn);
712 if (xn == NULL) goto err;
713 if (sk_X509_NAME_find(stack,xn) >= 0)
714 X509_NAME_free(xn);
715 else
716 sk_X509_NAME_push(stack,xn);
717 }
718
719 if (0)
720 {
721err:
722 ret=0;
723 }
724 if(in != NULL)
725 BIO_free(in);
726 if(x != NULL)
727 X509_free(x);
728
729 sk_X509_NAME_set_cmp_func(stack,oldcmp);
730
731 return ret;
732 }
733
734/*!
735 * Add a directory of certs to a stack.
736 * \param stack the stack to append to.
737 * \param dir the directory to append from. All files in this directory will be
738 * examined as potential certs. Any that are acceptable to
739 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
740 * included.
741 * \return 1 for success, 0 for failure. Note that in the case of failure some
742 * certs may have been added to \c stack.
743 */
744
745#ifndef OPENSSL_SYS_WIN32
746#ifndef OPENSSL_SYS_VMS /* XXXX This may be fixed in the future */
747#ifndef OPENSSL_SYS_MACINTOSH_CLASSIC /* XXXXX: Better scheme needed! */
748
749int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
750 const char *dir)
751 {
752 DIR *d;
753 struct dirent *dstruct;
754 int ret = 0;
755
756 CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
757 d = opendir(dir);
758
759 /* Note that a side effect is that the CAs will be sorted by name */
760 if(!d)
761 {
762 SYSerr(SYS_F_OPENDIR, get_last_sys_error());
763 ERR_add_error_data(3, "opendir('", dir, "')");
764 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
765 goto err;
766 }
767
768 while((dstruct=readdir(d)))
769 {
770 char buf[1024];
771 int r;
772
773 if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
774 {
775 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
776 goto err;
777 }
778
779 r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,dstruct->d_name);
780 if (r <= 0 || r >= sizeof buf)
781 goto err;
782 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
783 goto err;
784 }
785 ret = 1;
786
787err:
788 if (d) closedir(d);
789 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
790 return ret;
791 }
792
793#endif
794#endif
795
796#else /* OPENSSL_SYS_WIN32 */
797
798#if defined(_WIN32_WCE)
799# ifndef UNICODE
800# error "WinCE comes in UNICODE flavor only..."
801# endif
802# if _WIN32_WCE<101 && !defined(OPENSSL_NO_MULTIBYTE)
803# define OPENSSL_NO_MULTIBYTE
804# endif
805# ifndef FindFirstFile
806# define FindFirstFile FindFirstFileW
807# endif
808# ifndef FindNextFile
809# define FindNextFile FindNextFileW
810# endif
811#endif
812
813int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
814 const char *dir)
815 {
816 WIN32_FIND_DATA FindFileData;
817 HANDLE hFind;
818 int ret = 0;
819 TCHAR *wdir = NULL;
820 size_t i,len_0 = strlen(dir)+1; /* len_0 accounts for trailing 0 */
821 char buf[1024],*slash;
822
823 if (len_0 > (sizeof(buf)-14)) /* 14 is just some value... */
824 {
825 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
826 return ret;
827 }
828
829 CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
830
831 if (sizeof(TCHAR) != sizeof(char))
832 {
833 wdir = (TCHAR *)malloc(len_0*sizeof(TCHAR));
834 if (wdir == NULL)
835 goto err_noclose;
836#ifndef OPENSSL_NO_MULTIBYTE
837 if (!MultiByteToWideChar(CP_ACP,0,dir,len_0,
838 (WCHAR *)wdir,len_0))
839#endif
840 for (i=0;i<len_0;i++) wdir[i]=(TCHAR)dir[i];
841
842 hFind = FindFirstFile(wdir, &FindFileData);
843 }
844 else hFind = FindFirstFile((const TCHAR *)dir, &FindFileData);
845
846 /* Note that a side effect is that the CAs will be sorted by name */
847 if(hFind == INVALID_HANDLE_VALUE)
848 {
849 SYSerr(SYS_F_OPENDIR, get_last_sys_error());
850 ERR_add_error_data(3, "opendir('", dir, "')");
851 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
852 goto err_noclose;
853 }
854
855 strncpy(buf,dir,sizeof(buf)); /* strcpy is safe too... */
856 buf[len_0-1]='/'; /* no trailing zero! */
857 slash=buf+len_0;
858
859 do {
860 const TCHAR *fnam=FindFileData.cFileName;
861 size_t flen_0=_tcslen(fnam)+1;
862
863 if (flen_0 > (sizeof(buf)-len_0))
864 {
865 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
866 goto err;
867 }
868 /* else strcpy would be safe too... */
869
870 if (sizeof(TCHAR) != sizeof(char))
871 {
872#ifndef OPENSSL_NO_MULTIBYTE
873 if (!WideCharToMultiByte(CP_ACP,0,
874 (WCHAR *)fnam,flen_0,
875 slash,sizeof(buf)-len_0,
876 NULL,0))
877#endif
878 for (i=0;i<flen_0;i++) slash[i]=(char)fnam[i];
879 }
880 else strncpy(slash,(const char *)fnam,sizeof(buf)-len_0);
881
882 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
883 goto err;
884 }
885 while (FindNextFile(hFind, &FindFileData) != FALSE);
886 ret = 1;
887
888err:
889 FindClose(hFind);
890err_noclose:
891 if (wdir != NULL)
892 free(wdir);
893
894 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
895 return ret;
896 }
897
898#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-10-27 10:44:20 +0000