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> 134 135 int 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 } 155 156 CERT *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 } 173 174 CERT *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 */ 289 err: 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 } 310 311 312 void 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 } 352 353 int 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 } 380 381 382 SESS_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 } 399 400 void 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 } 447 448 int ssl_set_peer_cert_type(SESS_CERT *sc,int type) 449 { 450 sc->peer_cert_type = type; 451 return(1); 452 } 453 454 int 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 } 509 510 static 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 } 517 518 STACK_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 } 536 537 void 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 } 541 542 void 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 } 546 547 STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) 548 { 549 return(ctx->client_CA); 550 } 551 552 STACK_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 } 570 571 static 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 } 589 590 int SSL_add_client_CA(SSL *ssl,X509 *x) 591 { 592 return(add_client_CA(&(ssl->client_CA),x)); 593 } 594 595 int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x) 596 { 597 return(add_client_CA(&(ctx->client_CA),x)); 598 } 599 600 static 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 */ 614 STACK_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 { 662 err: 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 */ 683 684 int 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 { 721 err: 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! */ 748 749 int 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; 786 787 err: 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 812 813 int 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; 887 888 err: 889 FindClose(hFind); 890 err_noclose: 891 if (wdir != NULL) 892 free(wdir); 893 894 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); 895 return ret; 896 } 897 898 #endif 899