Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | |
| 135 | int 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 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 163 | CERT *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; |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 177 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 178 | return(ret); |
| 179 | } |
| 180 | |
| 181 | CERT *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 | switch(i) |
| 276 | { |
| 277 | /* If there was anything special to do for |
| 278 | * certain types of keys, we'd do it here. |
| 279 | * (Nothing at the moment, I think.) */ |
| 280 | |
| 281 | case SSL_PKEY_RSA_ENC: |
| 282 | case SSL_PKEY_RSA_SIGN: |
| 283 | /* We have an RSA key. */ |
| 284 | break; |
| 285 | |
| 286 | case SSL_PKEY_DSA_SIGN: |
| 287 | /* We have a DSA key. */ |
| 288 | break; |
| 289 | |
| 290 | case SSL_PKEY_DH_RSA: |
| 291 | case SSL_PKEY_DH_DSA: |
| 292 | /* We have a DH key. */ |
| 293 | break; |
| 294 | |
| 295 | case SSL_PKEY_ECC: |
| 296 | /* We have an ECC key */ |
| 297 | break; |
| 298 | |
| 299 | default: |
| 300 | /* Can't happen. */ |
| 301 | SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG); |
| 302 | } |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | /* ret->extra_certs *should* exist, but currently the own certificate |
| 307 | * chain is held inside SSL_CTX */ |
| 308 | |
| 309 | ret->references=1; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 310 | |
| 311 | return(ret); |
| 312 | |
| 313 | #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH) |
| 314 | err: |
| 315 | #endif |
| 316 | #ifndef OPENSSL_NO_RSA |
| 317 | if (ret->rsa_tmp != NULL) |
| 318 | RSA_free(ret->rsa_tmp); |
| 319 | #endif |
| 320 | #ifndef OPENSSL_NO_DH |
| 321 | if (ret->dh_tmp != NULL) |
| 322 | DH_free(ret->dh_tmp); |
| 323 | #endif |
| 324 | #ifndef OPENSSL_NO_ECDH |
| 325 | if (ret->ecdh_tmp != NULL) |
| 326 | EC_KEY_free(ret->ecdh_tmp); |
| 327 | #endif |
| 328 | |
| 329 | for (i = 0; i < SSL_PKEY_NUM; i++) |
| 330 | { |
| 331 | if (ret->pkeys[i].x509 != NULL) |
| 332 | X509_free(ret->pkeys[i].x509); |
| 333 | if (ret->pkeys[i].privatekey != NULL) |
| 334 | EVP_PKEY_free(ret->pkeys[i].privatekey); |
| 335 | } |
| 336 | |
| 337 | return NULL; |
| 338 | } |
| 339 | |
| 340 | |
| 341 | void ssl_cert_free(CERT *c) |
| 342 | { |
| 343 | int i; |
| 344 | |
| 345 | if(c == NULL) |
| 346 | return; |
| 347 | |
| 348 | i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT); |
| 349 | #ifdef REF_PRINT |
| 350 | REF_PRINT("CERT",c); |
| 351 | #endif |
| 352 | if (i > 0) return; |
| 353 | #ifdef REF_CHECK |
| 354 | if (i < 0) |
| 355 | { |
| 356 | fprintf(stderr,"ssl_cert_free, bad reference count\n"); |
| 357 | abort(); /* ok */ |
| 358 | } |
| 359 | #endif |
| 360 | |
| 361 | #ifndef OPENSSL_NO_RSA |
| 362 | if (c->rsa_tmp) RSA_free(c->rsa_tmp); |
| 363 | #endif |
| 364 | #ifndef OPENSSL_NO_DH |
| 365 | if (c->dh_tmp) DH_free(c->dh_tmp); |
| 366 | #endif |
| 367 | #ifndef OPENSSL_NO_ECDH |
| 368 | if (c->ecdh_tmp) EC_KEY_free(c->ecdh_tmp); |
| 369 | #endif |
| 370 | |
| 371 | for (i=0; i<SSL_PKEY_NUM; i++) |
| 372 | { |
| 373 | if (c->pkeys[i].x509 != NULL) |
| 374 | X509_free(c->pkeys[i].x509); |
| 375 | if (c->pkeys[i].privatekey != NULL) |
| 376 | EVP_PKEY_free(c->pkeys[i].privatekey); |
| 377 | #if 0 |
| 378 | if (c->pkeys[i].publickey != NULL) |
| 379 | EVP_PKEY_free(c->pkeys[i].publickey); |
| 380 | #endif |
| 381 | } |
| 382 | OPENSSL_free(c); |
| 383 | } |
| 384 | |
| 385 | int ssl_cert_inst(CERT **o) |
| 386 | { |
| 387 | /* Create a CERT if there isn't already one |
| 388 | * (which cannot really happen, as it is initially created in |
| 389 | * SSL_CTX_new; but the earlier code usually allows for that one |
| 390 | * being non-existant, so we follow that behaviour, as it might |
| 391 | * turn out that there actually is a reason for it -- but I'm |
| 392 | * not sure that *all* of the existing code could cope with |
| 393 | * s->cert being NULL, otherwise we could do without the |
| 394 | * initialization in SSL_CTX_new). |
| 395 | */ |
| 396 | |
| 397 | if (o == NULL) |
| 398 | { |
| 399 | SSLerr(SSL_F_SSL_CERT_INST, ERR_R_PASSED_NULL_PARAMETER); |
| 400 | return(0); |
| 401 | } |
| 402 | if (*o == NULL) |
| 403 | { |
| 404 | if ((*o = ssl_cert_new()) == NULL) |
| 405 | { |
| 406 | SSLerr(SSL_F_SSL_CERT_INST, ERR_R_MALLOC_FAILURE); |
| 407 | return(0); |
| 408 | } |
| 409 | } |
| 410 | return(1); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | SESS_CERT *ssl_sess_cert_new(void) |
| 415 | { |
| 416 | SESS_CERT *ret; |
| 417 | |
| 418 | ret = OPENSSL_malloc(sizeof *ret); |
| 419 | if (ret == NULL) |
| 420 | { |
| 421 | SSLerr(SSL_F_SSL_SESS_CERT_NEW, ERR_R_MALLOC_FAILURE); |
| 422 | return NULL; |
| 423 | } |
| 424 | |
| 425 | memset(ret, 0 ,sizeof *ret); |
| 426 | ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); |
| 427 | ret->references = 1; |
| 428 | |
| 429 | return ret; |
| 430 | } |
| 431 | |
| 432 | void ssl_sess_cert_free(SESS_CERT *sc) |
| 433 | { |
| 434 | int i; |
| 435 | |
| 436 | if (sc == NULL) |
| 437 | return; |
| 438 | |
| 439 | i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); |
| 440 | #ifdef REF_PRINT |
| 441 | REF_PRINT("SESS_CERT", sc); |
| 442 | #endif |
| 443 | if (i > 0) |
| 444 | return; |
| 445 | #ifdef REF_CHECK |
| 446 | if (i < 0) |
| 447 | { |
| 448 | fprintf(stderr,"ssl_sess_cert_free, bad reference count\n"); |
| 449 | abort(); /* ok */ |
| 450 | } |
| 451 | #endif |
| 452 | |
| 453 | /* i == 0 */ |
| 454 | if (sc->cert_chain != NULL) |
| 455 | sk_X509_pop_free(sc->cert_chain, X509_free); |
| 456 | for (i = 0; i < SSL_PKEY_NUM; i++) |
| 457 | { |
| 458 | if (sc->peer_pkeys[i].x509 != NULL) |
| 459 | X509_free(sc->peer_pkeys[i].x509); |
| 460 | #if 0 /* We don't have the peer's private key. These lines are just |
| 461 | * here as a reminder that we're still using a not-quite-appropriate |
| 462 | * data structure. */ |
| 463 | if (sc->peer_pkeys[i].privatekey != NULL) |
| 464 | EVP_PKEY_free(sc->peer_pkeys[i].privatekey); |
| 465 | #endif |
| 466 | } |
| 467 | |
| 468 | #ifndef OPENSSL_NO_RSA |
| 469 | if (sc->peer_rsa_tmp != NULL) |
| 470 | RSA_free(sc->peer_rsa_tmp); |
| 471 | #endif |
| 472 | #ifndef OPENSSL_NO_DH |
| 473 | if (sc->peer_dh_tmp != NULL) |
| 474 | DH_free(sc->peer_dh_tmp); |
| 475 | #endif |
| 476 | #ifndef OPENSSL_NO_ECDH |
| 477 | if (sc->peer_ecdh_tmp != NULL) |
| 478 | EC_KEY_free(sc->peer_ecdh_tmp); |
| 479 | #endif |
| 480 | |
| 481 | OPENSSL_free(sc); |
| 482 | } |
| 483 | |
| 484 | int ssl_set_peer_cert_type(SESS_CERT *sc,int type) |
| 485 | { |
| 486 | sc->peer_cert_type = type; |
| 487 | return(1); |
| 488 | } |
| 489 | |
| 490 | int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk) |
| 491 | { |
| 492 | X509 *x; |
| 493 | int i; |
| 494 | X509_STORE_CTX ctx; |
| 495 | |
| 496 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) |
| 497 | return(0); |
| 498 | |
| 499 | x=sk_X509_value(sk,0); |
| 500 | if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk)) |
| 501 | { |
| 502 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB); |
| 503 | return(0); |
| 504 | } |
| 505 | #if 0 |
| 506 | if (SSL_get_verify_depth(s) >= 0) |
| 507 | X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s)); |
| 508 | #endif |
| 509 | X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),s); |
| 510 | |
| 511 | /* We need to inherit the verify parameters. These can be determined by |
| 512 | * the context: if its a server it will verify SSL client certificates |
| 513 | * or vice versa. |
| 514 | */ |
| 515 | |
| 516 | X509_STORE_CTX_set_default(&ctx, |
| 517 | s->server ? "ssl_client" : "ssl_server"); |
| 518 | /* Anything non-default in "param" should overwrite anything in the |
| 519 | * ctx. |
| 520 | */ |
| 521 | X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); |
| 522 | |
| 523 | if (s->verify_callback) |
| 524 | X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback); |
| 525 | |
| 526 | if (s->ctx->app_verify_callback != NULL) |
| 527 | #if 1 /* new with OpenSSL 0.9.7 */ |
| 528 | i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg); |
| 529 | #else |
| 530 | i=s->ctx->app_verify_callback(&ctx); /* should pass app_verify_arg */ |
| 531 | #endif |
| 532 | else |
| 533 | { |
| 534 | #ifndef OPENSSL_NO_X509_VERIFY |
| 535 | i=X509_verify_cert(&ctx); |
| 536 | #else |
| 537 | i=0; |
| 538 | ctx.error=X509_V_ERR_APPLICATION_VERIFICATION; |
| 539 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK); |
| 540 | #endif |
| 541 | } |
| 542 | |
| 543 | s->verify_result=ctx.error; |
| 544 | X509_STORE_CTX_cleanup(&ctx); |
| 545 | |
| 546 | return(i); |
| 547 | } |
| 548 | |
| 549 | static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *name_list) |
| 550 | { |
| 551 | if (*ca_list != NULL) |
| 552 | sk_X509_NAME_pop_free(*ca_list,X509_NAME_free); |
| 553 | |
| 554 | *ca_list=name_list; |
| 555 | } |
| 556 | |
| 557 | STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) |
| 558 | { |
| 559 | int i; |
| 560 | STACK_OF(X509_NAME) *ret; |
| 561 | X509_NAME *name; |
| 562 | |
| 563 | ret=sk_X509_NAME_new_null(); |
| 564 | for (i=0; i<sk_X509_NAME_num(sk); i++) |
| 565 | { |
| 566 | name=X509_NAME_dup(sk_X509_NAME_value(sk,i)); |
| 567 | if ((name == NULL) || !sk_X509_NAME_push(ret,name)) |
| 568 | { |
| 569 | sk_X509_NAME_pop_free(ret,X509_NAME_free); |
| 570 | return(NULL); |
| 571 | } |
| 572 | } |
| 573 | return(ret); |
| 574 | } |
| 575 | |
| 576 | void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *name_list) |
| 577 | { |
| 578 | set_client_CA_list(&(s->client_CA),name_list); |
| 579 | } |
| 580 | |
| 581 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *name_list) |
| 582 | { |
| 583 | set_client_CA_list(&(ctx->client_CA),name_list); |
| 584 | } |
| 585 | |
| 586 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
| 587 | { |
| 588 | return(ctx->client_CA); |
| 589 | } |
| 590 | |
| 591 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
| 592 | { |
| 593 | if (s->type == SSL_ST_CONNECT) |
| 594 | { /* we are in the client */ |
| 595 | if (((s->version>>8) == SSL3_VERSION_MAJOR) && |
| 596 | (s->s3 != NULL)) |
| 597 | return(s->s3->tmp.ca_names); |
| 598 | else |
| 599 | return(NULL); |
| 600 | } |
| 601 | else |
| 602 | { |
| 603 | if (s->client_CA != NULL) |
| 604 | return(s->client_CA); |
| 605 | else |
| 606 | return(s->ctx->client_CA); |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x) |
| 611 | { |
| 612 | X509_NAME *name; |
| 613 | |
| 614 | if (x == NULL) return(0); |
| 615 | if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL)) |
| 616 | return(0); |
| 617 | |
| 618 | if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL) |
| 619 | return(0); |
| 620 | |
| 621 | if (!sk_X509_NAME_push(*sk,name)) |
| 622 | { |
| 623 | X509_NAME_free(name); |
| 624 | return(0); |
| 625 | } |
| 626 | return(1); |
| 627 | } |
| 628 | |
| 629 | int SSL_add_client_CA(SSL *ssl,X509 *x) |
| 630 | { |
| 631 | return(add_client_CA(&(ssl->client_CA),x)); |
| 632 | } |
| 633 | |
| 634 | int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x) |
| 635 | { |
| 636 | return(add_client_CA(&(ctx->client_CA),x)); |
| 637 | } |
| 638 | |
| 639 | static int xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b) |
| 640 | { |
| 641 | return(X509_NAME_cmp(*a,*b)); |
| 642 | } |
| 643 | |
| 644 | #ifndef OPENSSL_NO_STDIO |
| 645 | /*! |
| 646 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
| 647 | * it doesn't really have anything to do with clients (except that a common use |
| 648 | * for a stack of CAs is to send it to the client). Actually, it doesn't have |
| 649 | * much to do with CAs, either, since it will load any old cert. |
| 650 | * \param file the file containing one or more certs. |
| 651 | * \return a ::STACK containing the certs. |
| 652 | */ |
| 653 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
| 654 | { |
| 655 | BIO *in; |
| 656 | X509 *x=NULL; |
| 657 | X509_NAME *xn=NULL; |
| 658 | STACK_OF(X509_NAME) *ret = NULL,*sk; |
| 659 | |
| 660 | sk=sk_X509_NAME_new(xname_cmp); |
| 661 | |
| 662 | in=BIO_new(BIO_s_file_internal()); |
| 663 | |
| 664 | if ((sk == NULL) || (in == NULL)) |
| 665 | { |
| 666 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); |
| 667 | goto err; |
| 668 | } |
| 669 | |
| 670 | if (!BIO_read_filename(in,file)) |
| 671 | goto err; |
| 672 | |
| 673 | for (;;) |
| 674 | { |
| 675 | if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) |
| 676 | break; |
| 677 | if (ret == NULL) |
| 678 | { |
| 679 | ret = sk_X509_NAME_new_null(); |
| 680 | if (ret == NULL) |
| 681 | { |
| 682 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); |
| 683 | goto err; |
| 684 | } |
| 685 | } |
| 686 | if ((xn=X509_get_subject_name(x)) == NULL) goto err; |
| 687 | /* check for duplicates */ |
| 688 | xn=X509_NAME_dup(xn); |
| 689 | if (xn == NULL) goto err; |
| 690 | if (sk_X509_NAME_find(sk,xn) >= 0) |
| 691 | X509_NAME_free(xn); |
| 692 | else |
| 693 | { |
| 694 | sk_X509_NAME_push(sk,xn); |
| 695 | sk_X509_NAME_push(ret,xn); |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | if (0) |
| 700 | { |
| 701 | err: |
| 702 | if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free); |
| 703 | ret=NULL; |
| 704 | } |
| 705 | if (sk != NULL) sk_X509_NAME_free(sk); |
| 706 | if (in != NULL) BIO_free(in); |
| 707 | if (x != NULL) X509_free(x); |
| 708 | if (ret != NULL) |
| 709 | ERR_clear_error(); |
| 710 | return(ret); |
| 711 | } |
| 712 | #endif |
| 713 | |
| 714 | /*! |
| 715 | * Add a file of certs to a stack. |
| 716 | * \param stack the stack to add to. |
| 717 | * \param file the file to add from. All certs in this file that are not |
| 718 | * already in the stack will be added. |
| 719 | * \return 1 for success, 0 for failure. Note that in the case of failure some |
| 720 | * certs may have been added to \c stack. |
| 721 | */ |
| 722 | |
| 723 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
| 724 | const char *file) |
| 725 | { |
| 726 | BIO *in; |
| 727 | X509 *x=NULL; |
| 728 | X509_NAME *xn=NULL; |
| 729 | int ret=1; |
| 730 | int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b); |
| 731 | |
| 732 | oldcmp=sk_X509_NAME_set_cmp_func(stack,xname_cmp); |
| 733 | |
| 734 | in=BIO_new(BIO_s_file_internal()); |
| 735 | |
| 736 | if (in == NULL) |
| 737 | { |
| 738 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE); |
| 739 | goto err; |
| 740 | } |
| 741 | |
| 742 | if (!BIO_read_filename(in,file)) |
| 743 | goto err; |
| 744 | |
| 745 | for (;;) |
| 746 | { |
| 747 | if (PEM_read_bio_X509(in,&x,NULL,NULL) == NULL) |
| 748 | break; |
| 749 | if ((xn=X509_get_subject_name(x)) == NULL) goto err; |
| 750 | xn=X509_NAME_dup(xn); |
| 751 | if (xn == NULL) goto err; |
| 752 | if (sk_X509_NAME_find(stack,xn) >= 0) |
| 753 | X509_NAME_free(xn); |
| 754 | else |
| 755 | sk_X509_NAME_push(stack,xn); |
| 756 | } |
| 757 | |
| 758 | ERR_clear_error(); |
| 759 | |
| 760 | if (0) |
| 761 | { |
| 762 | err: |
| 763 | ret=0; |
| 764 | } |
| 765 | if(in != NULL) |
| 766 | BIO_free(in); |
| 767 | if(x != NULL) |
| 768 | X509_free(x); |
| 769 | |
| 770 | (void)sk_X509_NAME_set_cmp_func(stack,oldcmp); |
| 771 | |
| 772 | return ret; |
| 773 | } |
| 774 | |
| 775 | /*! |
| 776 | * Add a directory of certs to a stack. |
| 777 | * \param stack the stack to append to. |
| 778 | * \param dir the directory to append from. All files in this directory will be |
| 779 | * examined as potential certs. Any that are acceptable to |
| 780 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
| 781 | * included. |
| 782 | * \return 1 for success, 0 for failure. Note that in the case of failure some |
| 783 | * certs may have been added to \c stack. |
| 784 | */ |
| 785 | |
| 786 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
| 787 | const char *dir) |
| 788 | { |
| 789 | OPENSSL_DIR_CTX *d = NULL; |
| 790 | const char *filename; |
| 791 | int ret = 0; |
| 792 | |
| 793 | CRYPTO_w_lock(CRYPTO_LOCK_READDIR); |
| 794 | |
| 795 | /* Note that a side effect is that the CAs will be sorted by name */ |
| 796 | |
| 797 | while((filename = OPENSSL_DIR_read(&d, dir))) |
| 798 | { |
| 799 | char buf[1024]; |
| 800 | int r; |
| 801 | |
| 802 | if(strlen(dir)+strlen(filename)+2 > sizeof buf) |
| 803 | { |
| 804 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG); |
| 805 | goto err; |
| 806 | } |
| 807 | |
| 808 | #ifdef OPENSSL_SYS_VMS |
| 809 | r = BIO_snprintf(buf,sizeof buf,"%s%s",dir,filename); |
| 810 | #else |
| 811 | r = BIO_snprintf(buf,sizeof buf,"%s/%s",dir,filename); |
| 812 | #endif |
| 813 | if (r <= 0 || r >= (int)sizeof(buf)) |
| 814 | goto err; |
| 815 | if(!SSL_add_file_cert_subjects_to_stack(stack,buf)) |
| 816 | goto err; |
| 817 | } |
| 818 | |
| 819 | if (errno) |
| 820 | { |
| 821 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); |
| 822 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); |
| 823 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); |
| 824 | goto err; |
| 825 | } |
| 826 | |
| 827 | ret = 1; |
| 828 | |
| 829 | err: |
| 830 | if (d) OPENSSL_DIR_end(&d); |
| 831 | CRYPTO_w_unlock(CRYPTO_LOCK_READDIR); |
| 832 | return ret; |
| 833 | } |
| 834 | |