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) 1998-2006 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 #include <stdio.h>
113
114 #include "e_os.h"
115 #ifndef NO_SYS_TYPES_H
116 # include <sys/types.h>
117 #endif
118
119 #if !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_VMS) && !defined(NeXT) && !defined(MAC_OS_pre_X)
120 #include <dirent.h>
121 #endif
122
123 #if defined(WIN32)
124 #include <windows.h>
125 #include <tchar.h>
126 #endif
127
128 #ifdef NeXT
129 #include <sys/dir.h>
130 #define dirent direct
131 #endif
132
133 #include <openssl/objects.h>
134 #include <openssl/bio.h>
135 #include <openssl/pem.h>
136 #include <openssl/x509v3.h>
137 #include "ssl_locl.h"
138 #include <openssl/fips.h>
139
SSL_get_ex_data_X509_STORE_CTX_idx(void)140 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
141 {
142 static volatile int ssl_x509_store_ctx_idx= -1;
143 int got_write_lock = 0;
144
145 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
146
147 if (ssl_x509_store_ctx_idx < 0)
148 {
149 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
150 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
151 got_write_lock = 1;
152
153 if (ssl_x509_store_ctx_idx < 0)
154 {
155 ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
156 0,"SSL for verify callback",NULL,NULL,NULL);
157 }
158 }
159
160 if (got_write_lock)
161 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
162 else
163 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
164
165 return ssl_x509_store_ctx_idx;
166 }
167
ssl_cert_new(void)168 CERT *ssl_cert_new(void)
169 {
170 CERT *ret;
171
172 ret=(CERT *)OPENSSL_malloc(sizeof(CERT));
173 if (ret == NULL)
174 {
175 SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);
176 return(NULL);
177 }
178 memset(ret,0,sizeof(CERT));
179
180 ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
181 ret->references=1;
182
183 return(ret);
184 }
185
ssl_cert_dup(CERT * cert)186 CERT *ssl_cert_dup(CERT *cert)
187 {
188 CERT *ret;
189 int i;
190
191 ret = (CERT *)OPENSSL_malloc(sizeof(CERT));
192 if (ret == NULL)
193 {
194 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);
195 return(NULL);
196 }
197
198 memset(ret, 0, sizeof(CERT));
199
200 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];
201 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),
202 * if you find that more readable */
203
204 ret->valid = cert->valid;
205 ret->mask = cert->mask;
206 ret->export_mask = cert->export_mask;
207
208 #ifndef OPENSSL_NO_RSA
209 if (cert->rsa_tmp != NULL)
210 {
211 RSA_up_ref(cert->rsa_tmp);
212 ret->rsa_tmp = cert->rsa_tmp;
213 }
214 ret->rsa_tmp_cb = cert->rsa_tmp_cb;
215 #endif
216
217 #ifndef OPENSSL_NO_DH
218 if (cert->dh_tmp != NULL)
219 {
220 /* DH parameters don't have a reference count */
221 ret->dh_tmp = DHparams_dup(cert->dh_tmp);
222 if (ret->dh_tmp == NULL)
223 {
224 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB);
225 goto err;
226 }
227 if (cert->dh_tmp->priv_key)
228 {
229 BIGNUM *b = BN_dup(cert->dh_tmp->priv_key);
230 if (!b)
231 {
232 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
233 goto err;
234 }
235 ret->dh_tmp->priv_key = b;
236 }
237 if (cert->dh_tmp->pub_key)
238 {
239 BIGNUM *b = BN_dup(cert->dh_tmp->pub_key);
240 if (!b)
241 {
242 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB);
243 goto err;
244 }
245 ret->dh_tmp->pub_key = b;
246 }
247 }
248 ret->dh_tmp_cb = cert->dh_tmp_cb;
249 #endif
250
251 for (i = 0; i < SSL_PKEY_NUM; i++)
252 {
253 if (cert->pkeys[i].x509 != NULL)
254 {
255 ret->pkeys[i].x509 = cert->pkeys[i].x509;
256 CRYPTO_add(&ret->pkeys[i].x509->references, 1,
257 CRYPTO_LOCK_X509);
258 }
259
260 if (cert->pkeys[i].privatekey != NULL)
261 {
262 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;
263 CRYPTO_add(&ret->pkeys[i].privatekey->references, 1,
264 CRYPTO_LOCK_EVP_PKEY);
265
266 switch(i)
267 {
268 /* If there was anything special to do for
269 * certain types of keys, we'd do it here.
270 * (Nothing at the moment, I think.) */
271
272 case SSL_PKEY_RSA_ENC:
273 case SSL_PKEY_RSA_SIGN:
274 /* We have an RSA key. */
275 break;
276
277 case SSL_PKEY_DSA_SIGN:
278 /* We have a DSA key. */
279 break;
280
281 case SSL_PKEY_DH_RSA:
282 case SSL_PKEY_DH_DSA:
283 /* We have a DH key. */
284 break;
285
286 default:
287 /* Can't happen. */
288 SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);
289 }
290 }
291 }
292
293 /* ret->extra_certs *should* exist, but currently the own certificate
294 * chain is held inside SSL_CTX */
295
296 ret->references=1;
297
298 return(ret);
299
300 #ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */
301 err:
302 #endif
303 #ifndef OPENSSL_NO_RSA
304 if (ret->rsa_tmp != NULL)
305 RSA_free(ret->rsa_tmp);
306 #endif
307 #ifndef OPENSSL_NO_DH
308 if (ret->dh_tmp != NULL)
309 DH_free(ret->dh_tmp);
310 #endif
311
312 for (i = 0; i < SSL_PKEY_NUM; i++)
313 {
314 if (ret->pkeys[i].x509 != NULL)
315 X509_free(ret->pkeys[i].x509);
316 if (ret->pkeys[i].privatekey != NULL)
317 EVP_PKEY_free(ret->pkeys[i].privatekey);
318 }
319
320 return NULL;
321 }
322
323
ssl_cert_free(CERT * c)324 void ssl_cert_free(CERT *c)
325 {
326 int i;
327
328 if(c == NULL)
329 return;
330
331 i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);
332 #ifdef REF_PRINT
333 REF_PRINT("CERT",c);
334 #endif
335 if (i > 0) return;
336 #ifdef REF_CHECK
337 if (i < 0)
338 {
339 fprintf(stderr,"ssl_cert_free, bad reference count\n");
340 abort(); /* ok */
341 }
342 #endif
343
344 #ifndef OPENSSL_NO_RSA
345 if (c->rsa_tmp) RSA_free(c->rsa_tmp);
346 #endif
347 #ifndef OPENSSL_NO_DH
348 if (c->dh_tmp) DH_free(c->dh_tmp);
349 #endif
350
351 for (i=0; i<SSL_PKEY_NUM; i++)
352 {
353 if (c->pkeys[i].x509 != NULL)
354 X509_free(c->pkeys[i].x509);
355 if (c->pkeys[i].privatekey != NULL)
356 EVP_PKEY_free(c->pkeys[i].privatekey);
357 #if 0
358 if (c->pkeys[i].publickey != NULL)
359 EVP_PKEY_free(c->pkeys[i].publickey);
360 #endif
361 }
362 OPENSSL_free(c);
363 }
364
ssl_cert_inst(CERT ** o)365 int ssl_cert_inst(CERT **o)
366 {
367 /* Create a CERT if there isn't already one
368 * (which cannot really happen, as it is initially created in
369 * SSL_CTX_new; but the earlier code usually allows for that one
370 * being non-existant, so we follow that behaviour, as it might
371 * turn out that there actually is a reason for it -- but I'm
372 * not sure that *all* of the existing code could cope with
373 * s->cert being NULL, otherwise we could do without the
374 * initialization in SSL_CTX_new).
375 */
376
377 if (o == NULL)
378 {
379 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER);
380 return(0);
381 }
382 if (*o == NULL)
383 {
384 if ((*o = ssl_cert_new()) == NULL)
385 {
386 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE);
387 return(0);
388 }
389 }
390 return(1);
391 }
392
393
ssl_sess_cert_new(void)394 SESS_CERT *ssl_sess_cert_new(void)
395 {
396 SESS_CERT *ret;
397
398 ret = OPENSSL_malloc(sizeof *ret);
399 if (ret == NULL)
400 {
401 SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE);
402 return NULL;
403 }
404
405 memset(ret, 0 ,sizeof *ret);
406 ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]);
407 ret->references = 1;
408
409 return ret;
410 }
411
ssl_sess_cert_free(SESS_CERT * sc)412 void ssl_sess_cert_free(SESS_CERT *sc)
413 {
414 int i;
415
416 if (sc == NULL)
417 return;
418
419 i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT);
420 #ifdef REF_PRINT
421 REF_PRINT("SESS_CERT", sc);
422 #endif
423 if (i > 0)
424 return;
425 #ifdef REF_CHECK
426 if (i < 0)
427 {
428 fprintf(stderr,"ssl_sess_cert_free, bad reference count\n");
429 abort(); /* ok */
430 }
431 #endif
432
433 /* i == 0 */
434 if (sc->cert_chain != NULL)
435 sk_X509_pop_free(sc->cert_chain, X509_free);
436 for (i = 0; i < SSL_PKEY_NUM; i++)
437 {
438 if (sc->peer_pkeys[i].x509 != NULL)
439 X509_free(sc->peer_pkeys[i].x509);
440 #if 0 /* We don't have the peer's private key. These lines are just
441 * here as a reminder that we're still using a not-quite-appropriate
442 * data structure. */
443 if (sc->peer_pkeys[i].privatekey != NULL)
444 EVP_PKEY_free(sc->peer_pkeys[i].privatekey);
445 #endif
446 }
447
448 #ifndef OPENSSL_NO_RSA
449 if (sc->peer_rsa_tmp != NULL)
450 RSA_free(sc->peer_rsa_tmp);
451 #endif
452 #ifndef OPENSSL_NO_DH
453 if (sc->peer_dh_tmp != NULL)
454 DH_free(sc->peer_dh_tmp);
455 #endif
456
457 OPENSSL_free(sc);
458 }
459
ssl_set_peer_cert_type(SESS_CERT * sc,int type)460 int ssl_set_peer_cert_type(SESS_CERT *sc,int type)
461 {
462 sc->peer_cert_type = type;
463 return(1);
464 }
465
ssl_verify_cert_chain(SSL * s,STACK_OF (X509)* sk)466 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk)
467 {
468 X509 *x;
469 int i;
470 X509_STORE_CTX ctx;
471
472 if ((sk == NULL) || (sk_X509_num(sk) == 0))
473 return(0);
474
475 x=sk_X509_value(sk,0);
476 if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk))
477 {
478 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);
479 return(0);
480 }
481 if (SSL_get_verify_depth(s) >= 0)
482 X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
483 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s);
484
485 /* We need to set the verify purpose. The purpose can be determined by
486 * the context: if its a server it will verify SSL client certificates
487 * or vice versa.
488 */
489 if (s->server)
490 i = X509_PURPOSE_SSL_CLIENT;
491 else
492 i = X509_PURPOSE_SSL_SERVER;
493
494 X509_STORE_CTX_purpose_inherit(&ctx, i, s->purpose, s->trust);
495
496 if (s->verify_callback)
497 X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
498
499 if (s->ctx->app_verify_callback != NULL)
500 #if 1 /* new with OpenSSL 0.9.7 */
501 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg);
502 #else
503 i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */
504 #endif
505 else
506 {
507 #ifndef OPENSSL_NO_X509_VERIFY
508 i=X509_verify_cert(&ctx);
509 #else
510 i=0;
511 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
512 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
513 #endif
514 }
515
516 s->verify_result=ctx.error;
517 X509_STORE_CTX_cleanup(&ctx);
518
519 return(i);
520 }
521
set_client_CA_list(STACK_OF (X509_NAME)** ca_list,STACK_OF (X509_NAME)* name_list)522 static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list)
523 {
524 if (*ca_list != NULL)
525 sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);
526
527 *ca_list=name_list;
528 }
529
STACK_OF(X509_NAME)530 STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk)
531 {
532 int i;
533 STACK_OF(X509_NAME) *ret;
534 X509_NAME *name;
535
536 ret=sk_X509_NAME_new_null();
537 for (i=0; i<sk_X509_NAME_num(sk); i++)
538 {
539 name=X509_NAME_dup(sk_X509_NAME_value(sk,i));
540 if ((name == NULL) || !sk_X509_NAME_push(ret,name))
541 {
542 sk_X509_NAME_pop_free(ret,X509_NAME_free);
543 return(NULL);
544 }
545 }
546 return(ret);
547 }
548
SSL_set_client_CA_list(SSL * s,STACK_OF (X509_NAME)* name_list)549 void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list)
550 {
551 set_client_CA_list(&(s->client_CA),name_list);
552 }
553
SSL_CTX_set_client_CA_list(SSL_CTX * ctx,STACK_OF (X509_NAME)* name_list)554 void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list)
555 {
556 set_client_CA_list(&(ctx->client_CA),name_list);
557 }
558
STACK_OF(X509_NAME)559 STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx)
560 {
561 return(ctx->client_CA);
562 }
563
STACK_OF(X509_NAME)564 STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s)
565 {
566 if (s->type == SSL_ST_CONNECT)
567 { /* we are in the client */
568 if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
569 (s->s3 != NULL))
570 return(s->s3->tmp.ca_names);
571 else
572 return(NULL);
573 }
574 else
575 {
576 if (s->client_CA != NULL)
577 return(s->client_CA);
578 else
579 return(s->ctx->client_CA);
580 }
581 }
582
add_client_CA(STACK_OF (X509_NAME)** sk,X509 * x)583 static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x)
584 {
585 X509_NAME *name;
586
587 if (x == NULL) return(0);
588 if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL))
589 return(0);
590
591 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
592 return(0);
593
594 if (!sk_X509_NAME_push(*sk,name))
595 {
596 X509_NAME_free(name);
597 return(0);
598 }
599 return(1);
600 }
601
SSL_add_client_CA(SSL * ssl,X509 * x)602 int SSL_add_client_CA(SSL *ssl,X509 *x)
603 {
604 return(add_client_CA(&(ssl->client_CA),x));
605 }
606
SSL_CTX_add_client_CA(SSL_CTX * ctx,X509 * x)607 int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x)
608 {
609 return(add_client_CA(&(ctx->client_CA),x));
610 }
611
xname_cmp(const X509_NAME * const * a,const X509_NAME * const * b)612 static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
613 {
614 return(X509_NAME_cmp(*a,*b));
615 }
616
617 #ifndef OPENSSL_NO_STDIO
618 /*!
619 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
620 * it doesn't really have anything to do with clients (except that a common use
621 * for a stack of CAs is to send it to the client). Actually, it doesn't have
622 * much to do with CAs, either, since it will load any old cert.
623 * \param file the file containing one or more certs.
624 * \return a ::STACK containing the certs.
625 */
STACK_OF(X509_NAME)626 STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
627 {
628 BIO *in;
629 X509 *x=NULL;
630 X509_NAME *xn=NULL;
631 STACK_OF(X509_NAME) *ret = NULL,*sk;
632
633 sk=sk_X509_NAME_new(xname_cmp);
634
635 in=BIO_new(BIO_s_file_internal());
636
637 if ((sk == NULL) || (in == NULL))
638 {
639 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
640 goto err;
641 }
642
643 if (!BIO_read_filename(in,file))
644 goto err;
645
646 for (;;)
647 {
648 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
649 break;
650 if (ret == NULL)
651 {
652 ret = sk_X509_NAME_new_null();
653 if (ret == NULL)
654 {
655 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
656 goto err;
657 }
658 }
659 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
660 /* check for duplicates */
661 xn=X509_NAME_dup(xn);
662 if (xn == NULL) goto err;
663 if (sk_X509_NAME_find(sk,xn) >= 0)
664 X509_NAME_free(xn);
665 else
666 {
667 sk_X509_NAME_push(sk,xn);
668 sk_X509_NAME_push(ret,xn);
669 }
670 }
671
672 if (0)
673 {
674 err:
675 if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free);
676 ret=NULL;
677 }
678 if (sk != NULL) sk_X509_NAME_free(sk);
679 if (in != NULL) BIO_free(in);
680 if (x != NULL) X509_free(x);
681 if (ret != NULL)
682 ERR_clear_error();
683 return(ret);
684 }
685 #endif
686
687 /*!
688 * Add a file of certs to a stack.
689 * \param stack the stack to add to.
690 * \param file the file to add from. All certs in this file that are not
691 * already in the stack will be added.
692 * \return 1 for success, 0 for failure. Note that in the case of failure some
693 * certs may have been added to \c stack.
694 */
695
SSL_add_file_cert_subjects_to_stack(STACK_OF (X509_NAME)* stack,const char * file)696 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
697 const char *file)
698 {
699 BIO *in;
700 X509 *x=NULL;
701 X509_NAME *xn=NULL;
702 int ret=1;
703 int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b);
704
705 oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp);
706
707 in=BIO_new(BIO_s_file_internal());
708
709 if (in == NULL)
710 {
711 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
712 goto err;
713 }
714
715 if (!BIO_read_filename(in,file))
716 goto err;
717
718 for (;;)
719 {
720 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL)
721 break;
722 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
723 xn=X509_NAME_dup(xn);
724 if (xn == NULL) goto err;
725 if (sk_X509_NAME_find(stack,xn) >= 0)
726 X509_NAME_free(xn);
727 else
728 sk_X509_NAME_push(stack,xn);
729 }
730
731 if (0)
732 {
733 err:
734 ret=0;
735 }
736 if(in != NULL)
737 BIO_free(in);
738 if(x != NULL)
739 X509_free(x);
740
741 sk_X509_NAME_set_cmp_func(stack,oldcmp);
742
743 return ret;
744 }
745
746 /*!
747 * Add a directory of certs to a stack.
748 * \param stack the stack to append to.
749 * \param dir the directory to append from. All files in this directory will be
750 * examined as potential certs. Any that are acceptable to
751 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
752 * included.
753 * \return 1 for success, 0 for failure. Note that in the case of failure some
754 * certs may have been added to \c stack.
755 */
756
757 #ifndef OPENSSL_SYS_WIN32
758 #ifndef OPENSSL_SYS_VMS /* XXXX This may be fixed in the future */
759 #ifndef OPENSSL_SYS_MACINTOSH_CLASSIC /* XXXXX: Better scheme needed! */
760
SSL_add_dir_cert_subjects_to_stack(STACK_OF (X509_NAME)* stack,const char * dir)761 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
762 const char *dir)
763 {
764 DIR *d;
765 struct dirent *dstruct;
766 int ret = 0;
767
768 CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
769 d = opendir(dir);
770
771 /* Note that a side effect is that the CAs will be sorted by name */
772 if(!d)
773 {
774 SYSerr(SYS_F_OPENDIR, get_last_sys_error());
775 ERR_add_error_data(3, "opendir('", dir, "')");
776 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
777 goto err;
778 }
779
780 while((dstruct=readdir(d)))
781 {
782 char buf[1024];
783 int r;
784
785 if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
786 {
787 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
788 goto err;
789 }
790
791 r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,dstruct->d_name);
792 if (r <= 0 || r >= sizeof buf)
793 goto err;
794 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
795 goto err;
796 }
797 ret = 1;
798
799 err:
800 if (d) closedir(d);
801 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
802 return ret;
803 }
804
805 #endif
806 #endif
807
808 #else /* OPENSSL_SYS_WIN32 */
809
810 #if defined(_WIN32_WCE)
811 # ifndef UNICODE
812 # error "WinCE comes in UNICODE flavor only..."
813 # endif
814 # if _WIN32_WCE<101 && !defined(OPENSSL_NO_MULTIBYTE)
815 # define OPENSSL_NO_MULTIBYTE
816 # endif
817 # ifndef FindFirstFile
818 # define FindFirstFile FindFirstFileW
819 # endif
820 # ifndef FindNextFile
821 # define FindNextFile FindNextFileW
822 # endif
823 #endif
824
SSL_add_dir_cert_subjects_to_stack(STACK_OF (X509_NAME)* stack,const char * dir)825 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
826 const char *dir)
827 {
828 WIN32_FIND_DATA FindFileData;
829 HANDLE hFind;
830 int ret = 0;
831 TCHAR *wdir = NULL;
832 size_t i,len_0 = strlen(dir)+1; /* len_0 accounts for trailing 0 */
833 char buf[1024],*slash;
834
835 if (len_0 > (sizeof(buf)-14)) /* 14 is just some value... */
836 {
837 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
838 return ret;
839 }
840
841 CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
842
843 if (sizeof(TCHAR) != sizeof(char))
844 {
845 wdir = (TCHAR *)malloc(len_0*sizeof(TCHAR));
846 if (wdir == NULL)
847 goto err_noclose;
848 #ifndef OPENSSL_NO_MULTIBYTE
849 if (!MultiByteToWideChar(CP_ACP,0,dir,len_0,
850 (WCHAR *)wdir,len_0))
851 #endif
852 for (i=0;i<len_0;i++) wdir[i]=(TCHAR)dir[i];
853
854 hFind = FindFirstFile(wdir, &FindFileData);
855 }
856 else hFind = FindFirstFile((const TCHAR *)dir, &FindFileData);
857
858 /* Note that a side effect is that the CAs will be sorted by name */
859 if(hFind == INVALID_HANDLE_VALUE)
860 {
861 SYSerr(SYS_F_OPENDIR, get_last_sys_error());
862 ERR_add_error_data(3, "opendir('", dir, "')");
863 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB);
864 goto err_noclose;
865 }
866
867 strncpy(buf,dir,sizeof(buf)); /* strcpy is safe too... */
868 buf[len_0-1]='/'; /* no trailing zero! */
869 slash=buf+len_0;
870
871 do {
872 const TCHAR *fnam=FindFileData.cFileName;
873 size_t flen_0=_tcslen(fnam)+1;
874
875 if (flen_0 > (sizeof(buf)-len_0))
876 {
877 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
878 goto err;
879 }
880 /* else strcpy would be safe too... */
881
882 if (sizeof(TCHAR) != sizeof(char))
883 {
884 #ifndef OPENSSL_NO_MULTIBYTE
885 if (!WideCharToMultiByte(CP_ACP,0,
886 (WCHAR *)fnam,flen_0,
887 slash,sizeof(buf)-len_0,
888 NULL,0))
889 #endif
890 for (i=0;i<flen_0;i++) slash[i]=(char)fnam[i];
891 }
892 else strncpy(slash,(const char *)fnam,sizeof(buf)-len_0);
893
894 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))
895 goto err;
896 }
897 while (FindNextFile(hFind, &FindFileData) != FALSE);
898 ret = 1;
899
900 err:
901 FindClose(hFind);
902 err_noclose:
903 if (wdir != NULL)
904 free(wdir);
905
906 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
907 return ret;
908 }
909
910 #endif
911