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