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) 1998-2007 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111/* ==================================================================== 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 113 * ECC cipher suite support in OpenSSL originally developed by 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 115 */ 116 117#include <stdio.h> 118 119#include "e_os.h" 120#ifndef NO_SYS_TYPES_H 121# include <sys/types.h> 122#endif 123 124#include "o_dir.h" 125#include <openssl/objects.h> 126#include <openssl/bio.h> 127#include <openssl/pem.h> 128#include <openssl/x509v3.h> 129#ifndef OPENSSL_NO_DH 130#include <openssl/dh.h> 131#endif 132#include <openssl/bn.h> 133#include "ssl_locl.h" 134 135int SSL_get_ex_data_X509_STORE_CTX_idx(void) 136 { 137 static volatile int ssl_x509_store_ctx_idx= -1; 138 int got_write_lock = 0; 139 140 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 141 142 if (ssl_x509_store_ctx_idx < 0) 143 { 144 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 145 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 146 got_write_lock = 1; 147 148 if (ssl_x509_store_ctx_idx < 0) 149 { 150 ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index( 151 0,"SSL for verify callback",NULL,NULL,NULL); 152 } 153 } 154 155 if (got_write_lock) 156 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 157 else 158 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 159 160 return ssl_x509_store_ctx_idx; 161 } 162 163CERT *ssl_cert_new(void) 164 { 165 CERT *ret; 166 167 ret=(CERT *)OPENSSL_malloc(sizeof(CERT)); 168 if (ret == NULL) 169 { 170 SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE); 171 return(NULL); 172 } 173 memset(ret,0,sizeof(CERT)); 174 175 ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]); 176 ret->references=1; 177 178 return(ret); 179 } 180 181CERT *ssl_cert_dup(CERT *cert) 182 { 183 CERT *ret; 184 int i; 185 186 ret = (CERT *)OPENSSL_malloc(sizeof(CERT)); 187 if (ret == NULL) 188 { 189 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); 190 return(NULL); 191 } 192 193 memset(ret, 0, sizeof(CERT)); 194 195 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]]; 196 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys), 197 * if you find that more readable */ 198 199 ret->valid = cert->valid; 200 ret->mask_k = cert->mask_k; 201 ret->mask_a = cert->mask_a; 202 ret->export_mask_k = cert->export_mask_k; 203 ret->export_mask_a = cert->export_mask_a; 204 205#ifndef OPENSSL_NO_RSA 206 if (cert->rsa_tmp != NULL) 207 { 208 RSA_up_ref(cert->rsa_tmp); 209 ret->rsa_tmp = cert->rsa_tmp; 210 } 211 ret->rsa_tmp_cb = cert->rsa_tmp_cb; 212#endif 213 214#ifndef OPENSSL_NO_DH 215 if (cert->dh_tmp != NULL) 216 { 217 ret->dh_tmp = DHparams_dup(cert->dh_tmp); 218 if (ret->dh_tmp == NULL) 219 { 220 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_DH_LIB); 221 goto err; 222 } 223 if (cert->dh_tmp->priv_key) 224 { 225 BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); 226 if (!b) 227 { 228 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); 229 goto err; 230 } 231 ret->dh_tmp->priv_key = b; 232 } 233 if (cert->dh_tmp->pub_key) 234 { 235 BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); 236 if (!b) 237 { 238 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_BN_LIB); 239 goto err; 240 } 241 ret->dh_tmp->pub_key = b; 242 } 243 } 244 ret->dh_tmp_cb = cert->dh_tmp_cb; 245#endif 246 247#ifndef OPENSSL_NO_ECDH 248 if (cert->ecdh_tmp) 249 { 250 ret->ecdh_tmp = EC_KEY_dup(cert->ecdh_tmp); 251 if (ret->ecdh_tmp == NULL) 252 { 253 SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_EC_LIB); 254 goto err; 255 } 256 } 257 ret->ecdh_tmp_cb = cert->ecdh_tmp_cb; 258#endif 259 260 for (i = 0; i < SSL_PKEY_NUM; i++) 261 { 262 if (cert->pkeys[i].x509 != NULL) 263 { 264 ret->pkeys[i].x509 = cert->pkeys[i].x509; 265 CRYPTO_add(&ret->pkeys[i].x509->references, 1, 266 CRYPTO_LOCK_X509); 267 } 268 269 if (cert->pkeys[i].privatekey != NULL) 270 { 271 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey; 272 CRYPTO_add(&ret->pkeys[i].privatekey->references, 1, 273 CRYPTO_LOCK_EVP_PKEY); 274 } 275 } 276 277 /* ret->extra_certs *should* exist, but currently the own certificate 278 * chain is held inside SSL_CTX */ 279 280 ret->references=1; 281 282 return(ret); 283 284#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH) 285err: 286#endif 287#ifndef OPENSSL_NO_RSA 288 if (ret->rsa_tmp != NULL) 289 RSA_free(ret->rsa_tmp); 290#endif 291#ifndef OPENSSL_NO_DH 292 if (ret->dh_tmp != NULL) 293 DH_free(ret->dh_tmp); 294#endif 295#ifndef OPENSSL_NO_ECDH 296 if (ret->ecdh_tmp != NULL) 297 EC_KEY_free(ret->ecdh_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#ifndef OPENSSL_NO_ECDH 339 if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp); 340#endif 341 342 for (i=0; i<SSL_PKEY_NUM; i++) 343 { 344 if (c->pkeys[i].x509 != NULL) 345 X509_free(c->pkeys[i].x509); 346 if (c->pkeys[i].privatekey != NULL) 347 EVP_PKEY_free(c->pkeys[i].privatekey); 348#if 0 349 if (c->pkeys[i].publickey != NULL) 350 EVP_PKEY_free(c->pkeys[i].publickey); 351#endif 352 } 353 OPENSSL_free(c); 354 } 355 356int ssl_cert_inst(CERT **o) 357 { 358 /* Create a CERT if there isn't already one 359 * (which cannot really happen, as it is initially created in 360 * SSL_CTX_new; but the earlier code usually allows for that one 361 * being non-existant, so we follow that behaviour, as it might 362 * turn out that there actually is a reason for it -- but I'm 363 * not sure that *all* of the existing code could cope with 364 * s->cert being NULL, otherwise we could do without the 365 * initialization in SSL_CTX_new). 366 */ 367 368 if (o == NULL) 369 { 370 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER); 371 return(0); 372 } 373 if (*o == NULL) 374 { 375 if ((*o = ssl_cert_new()) == NULL) 376 { 377 SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE); 378 return(0); 379 } 380 } 381 return(1); 382 } 383 384 385SESS_CERT *ssl_sess_cert_new(void) 386 { 387 SESS_CERT *ret; 388 389 ret = OPENSSL_malloc(sizeof *ret); 390 if (ret == NULL) 391 { 392 SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE); 393 return NULL; 394 } 395 396 memset(ret, 0 ,sizeof *ret); 397 ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); 398 ret->references = 1; 399 400 return ret; 401 } 402 403void ssl_sess_cert_free(SESS_CERT *sc) 404 { 405 int i; 406 407 if (sc == NULL) 408 return; 409 410 i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); 411#ifdef REF_PRINT 412 REF_PRINT("SESS_CERT", sc); 413#endif 414 if (i > 0) 415 return; 416#ifdef REF_CHECK 417 if (i < 0) 418 { 419 fprintf(stderr,"ssl_sess_cert_free, bad reference count\n"); 420 abort(); /* ok */ 421 } 422#endif 423 424 /* i == 0 */ 425 if (sc->cert_chain != NULL) 426 sk_X509_pop_free(sc->cert_chain, X509_free); 427 for (i = 0; i < SSL_PKEY_NUM; i++) 428 { 429 if (sc->peer_pkeys[i].x509 != NULL) 430 X509_free(sc->peer_pkeys[i].x509); 431#if 0 /* We don't have the peer's private key. These lines are just 432 * here as a reminder that we're still using a not-quite-appropriate 433 * data structure. */ 434 if (sc->peer_pkeys[i].privatekey != NULL) 435 EVP_PKEY_free(sc->peer_pkeys[i].privatekey); 436#endif 437 } 438 439#ifndef OPENSSL_NO_RSA 440 if (sc->peer_rsa_tmp != NULL) 441 RSA_free(sc->peer_rsa_tmp); 442#endif 443#ifndef OPENSSL_NO_DH 444 if (sc->peer_dh_tmp != NULL) 445 DH_free(sc->peer_dh_tmp); 446#endif 447#ifndef OPENSSL_NO_ECDH 448 if (sc->peer_ecdh_tmp != NULL) 449 EC_KEY_free(sc->peer_ecdh_tmp); 450#endif 451 452 OPENSSL_free(sc); 453 } 454 455int ssl_set_peer_cert_type(SESS_CERT *sc,int type) 456 { 457 sc->peer_cert_type = type; 458 return(1); 459 } 460 461int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk) 462 { 463 X509 *x; 464 int i; 465 X509_STORE_CTX ctx; 466 467 if ((sk == NULL) || (sk_X509_num(sk) == 0)) 468 return(0); 469 470 x=sk_X509_value(sk,0); 471 if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk)) 472 { 473 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB); 474 return(0); 475 } 476#if 0 477 if (SSL_get_verify_depth(s) >= 0) 478 X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s)); 479#endif 480 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s); 481 482 /* We need to inherit the verify parameters. These can be determined by 483 * the context: if its a server it will verify SSL client certificates 484 * or vice versa. 485 */ 486 487 X509_STORE_CTX_set_default(&ctx, 488 s->server ? "ssl_client" : "ssl_server"); 489 /* Anything non-default in "param" should overwrite anything in the 490 * ctx. 491 */ 492 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); 493 494 if (s->verify_callback) 495 X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); 496 497 if (s->ctx->app_verify_callback != NULL) 498#if 1 /* new with OpenSSL 0.9.7 */ 499 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); 500#else 501 i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */ 502#endif 503 else 504 { 505#ifndef OPENSSL_NO_X509_VERIFY 506 i=X509_verify_cert(&ctx); 507#else 508 i=0; 509 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION; 510 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK); 511#endif 512 } 513 514 s->verify_result=ctx.error; 515 X509_STORE_CTX_cleanup(&ctx); 516 517 return(i); 518 } 519 520static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list) 521 { 522 if (*ca_list != NULL) 523 sk_X509_NAME_pop_free(*ca_list,X509_NAME_free); 524 525 *ca_list=name_list; 526 } 527 528STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) 529 { 530 int i; 531 STACK_OF(X509_NAME) *ret; 532 X509_NAME *name; 533 534 ret=sk_X509_NAME_new_null(); 535 for (i=0; i<sk_X509_NAME_num(sk); i++) 536 { 537 name=X509_NAME_dup(sk_X509_NAME_value(sk,i)); 538 if ((name == NULL) || !sk_X509_NAME_push(ret,name)) 539 { 540 sk_X509_NAME_pop_free(ret,X509_NAME_free); 541 return(NULL); 542 } 543 } 544 return(ret); 545 } 546 547void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list) 548 { 549 set_client_CA_list(&(s->client_CA),name_list); 550 } 551 552void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list) 553 { 554 set_client_CA_list(&(ctx->client_CA),name_list); 555 } 556 557STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) 558 { 559 return(ctx->client_CA); 560 } 561 562STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) 563 { 564 if (s->type == SSL_ST_CONNECT) 565 { /* we are in the client */ 566 if (((s->version>>8) == SSL3_VERSION_MAJOR) && 567 (s->s3 != NULL)) 568 return(s->s3->tmp.ca_names); 569 else 570 return(NULL); 571 } 572 else 573 { 574 if (s->client_CA != NULL) 575 return(s->client_CA); 576 else 577 return(s->ctx->client_CA); 578 } 579 } 580 581static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x) 582 { 583 X509_NAME *name; 584 585 if (x == NULL) return(0); 586 if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL)) 587 return(0); 588 589 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL) 590 return(0); 591 592 if (!sk_X509_NAME_push(*sk,name)) 593 { 594 X509_NAME_free(name); 595 return(0); 596 } 597 return(1); 598 } 599 600int SSL_add_client_CA(SSL *ssl,X509 *x) 601 { 602 return(add_client_CA(&(ssl->client_CA),x)); 603 } 604 605int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x) 606 { 607 return(add_client_CA(&(ctx->client_CA),x)); 608 } 609 610static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b) 611 { 612 return(X509_NAME_cmp(*a,*b)); 613 } 614 615#ifndef OPENSSL_NO_STDIO 616/*! 617 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; 618 * it doesn't really have anything to do with clients (except that a common use 619 * for a stack of CAs is to send it to the client). Actually, it doesn't have 620 * much to do with CAs, either, since it will load any old cert. 621 * \param file the file containing one or more certs. 622 * \return a ::STACK containing the certs. 623 */ 624STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) 625 { 626 BIO *in; 627 X509 *x=NULL; 628 X509_NAME *xn=NULL; 629 STACK_OF(X509_NAME) *ret = NULL,*sk; 630 631 sk=sk_X509_NAME_new(xname_cmp); 632 633 in=BIO_new(BIO_s_file_internal()); 634 635 if ((sk == NULL) || (in == NULL)) 636 { 637 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); 638 goto err; 639 } 640 641 if (!BIO_read_filename(in,file)) 642 goto err; 643 644 for (;;) 645 { 646 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) 647 break; 648 if (ret == NULL) 649 { 650 ret = sk_X509_NAME_new_null(); 651 if (ret == NULL) 652 { 653 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); 654 goto err; 655 } 656 } 657 if ((xn=X509_get_subject_name(x)) == NULL) goto err; 658 /* check for duplicates */ 659 xn=X509_NAME_dup(xn); 660 if (xn == NULL) goto err; 661 if (sk_X509_NAME_find(sk,xn) >= 0) 662 X509_NAME_free(xn); 663 else 664 { 665 sk_X509_NAME_push(sk,xn); 666 sk_X509_NAME_push(ret,xn); 667 } 668 } 669 670 if (0) 671 { 672err: 673 if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free); 674 ret=NULL; 675 } 676 if (sk != NULL) sk_X509_NAME_free(sk); 677 if (in != NULL) BIO_free(in); 678 if (x != NULL) X509_free(x); 679 if (ret != NULL) 680 ERR_clear_error(); 681 return(ret); 682 } 683#endif 684 685/*! 686 * Add a file of certs to a stack. 687 * \param stack the stack to add to. 688 * \param file the file to add from. All certs in this file that are not 689 * already in the stack will be added. 690 * \return 1 for success, 0 for failure. Note that in the case of failure some 691 * certs may have been added to \c stack. 692 */ 693 694int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, 695 const char *file) 696 { 697 BIO *in; 698 X509 *x=NULL; 699 X509_NAME *xn=NULL; 700 int ret=1; 701 int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b); 702 703 oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp); 704 705 in=BIO_new(BIO_s_file_internal()); 706 707 if (in == NULL) 708 { 709 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE); 710 goto err; 711 } 712 713 if (!BIO_read_filename(in,file)) 714 goto err; 715 716 for (;;) 717 { 718 if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) 719 break; 720 if ((xn=X509_get_subject_name(x)) == NULL) goto err; 721 xn=X509_NAME_dup(xn); 722 if (xn == NULL) goto err; 723 if (sk_X509_NAME_find(stack,xn) >= 0) 724 X509_NAME_free(xn); 725 else 726 sk_X509_NAME_push(stack,xn); 727 } 728 729 ERR_clear_error(); 730 731 if (0) 732 { 733err: 734 ret=0; 735 } 736 if(in != NULL) 737 BIO_free(in); 738 if(x != NULL) 739 X509_free(x); 740 741 (void)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 757int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, 758 const char *dir) 759 { 760 OPENSSL_DIR_CTX *d = NULL; 761 const char *filename; 762 int ret = 0; 763 764 CRYPTO_w_lock(CRYPTO_LOCK_READDIR); 765 766 /* Note that a side effect is that the CAs will be sorted by name */ 767 768 while((filename = OPENSSL_DIR_read(&d, dir))) 769 { 770 char buf[1024]; 771 int r; 772 773 if(strlen(dir)+strlen(filename)+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#ifdef OPENSSL_SYS_VMS 780 r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename); 781#else 782 r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename); 783#endif 784 if (r <= 0 || r >= (int)sizeof(buf)) 785 goto err; 786 if(!SSL_add_file_cert_subjects_to_stack(stack,buf)) 787 goto err; 788 } 789 790 if (errno) 791 { 792 SYSerr(SYS_F_OPENDIR, get_last_sys_error()); 793 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); 794 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); 795 goto err; 796 } 797 798 ret = 1; 799 800err: 801 if (d) OPENSSL_DIR_end(&d); 802 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); 803 return ret; 804 } 805 806