Alexandre Lision | f26d3e5 | 2014-04-14 16:22:31 -0400 | [diff] [blame^] | 1 | /* crypto/cms/cms_lib.c */ |
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 3 | * project. |
| 4 | */ |
| 5 | /* ==================================================================== |
| 6 | * Copyright (c) 2008 The OpenSSL Project. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in |
| 17 | * the documentation and/or other materials provided with the |
| 18 | * distribution. |
| 19 | * |
| 20 | * 3. All advertising materials mentioning features or use of this |
| 21 | * software must display the following acknowledgment: |
| 22 | * "This product includes software developed by the OpenSSL Project |
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 24 | * |
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 26 | * endorse or promote products derived from this software without |
| 27 | * prior written permission. For written permission, please contact |
| 28 | * licensing@OpenSSL.org. |
| 29 | * |
| 30 | * 5. Products derived from this software may not be called "OpenSSL" |
| 31 | * nor may "OpenSSL" appear in their names without prior written |
| 32 | * permission of the OpenSSL Project. |
| 33 | * |
| 34 | * 6. Redistributions of any form whatsoever must retain the following |
| 35 | * acknowledgment: |
| 36 | * "This product includes software developed by the OpenSSL Project |
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 38 | * |
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 51 | * ==================================================================== |
| 52 | */ |
| 53 | |
| 54 | #include <openssl/asn1t.h> |
| 55 | #include <openssl/x509.h> |
| 56 | #include <openssl/err.h> |
| 57 | #include <openssl/pem.h> |
| 58 | #include <openssl/bio.h> |
| 59 | #include <openssl/asn1.h> |
| 60 | #include "cms.h" |
| 61 | #include "cms_lcl.h" |
| 62 | |
| 63 | IMPLEMENT_ASN1_FUNCTIONS(CMS_ContentInfo) |
| 64 | IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo) |
| 65 | |
| 66 | DECLARE_ASN1_ITEM(CMS_CertificateChoices) |
| 67 | DECLARE_ASN1_ITEM(CMS_RevocationInfoChoice) |
| 68 | DECLARE_STACK_OF(CMS_CertificateChoices) |
| 69 | DECLARE_STACK_OF(CMS_RevocationInfoChoice) |
| 70 | |
| 71 | const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms) |
| 72 | { |
| 73 | return cms->contentType; |
| 74 | } |
| 75 | |
| 76 | CMS_ContentInfo *cms_Data_create(void) |
| 77 | { |
| 78 | CMS_ContentInfo *cms; |
| 79 | cms = CMS_ContentInfo_new(); |
| 80 | if (cms) |
| 81 | { |
| 82 | cms->contentType = OBJ_nid2obj(NID_pkcs7_data); |
| 83 | /* Never detached */ |
| 84 | CMS_set_detached(cms, 0); |
| 85 | } |
| 86 | return cms; |
| 87 | } |
| 88 | |
| 89 | BIO *cms_content_bio(CMS_ContentInfo *cms) |
| 90 | { |
| 91 | ASN1_OCTET_STRING **pos = CMS_get0_content(cms); |
| 92 | if (!pos) |
| 93 | return NULL; |
| 94 | /* If content detached data goes nowhere: create NULL BIO */ |
| 95 | if (!*pos) |
| 96 | return BIO_new(BIO_s_null()); |
| 97 | /* If content not detached and created return memory BIO |
| 98 | */ |
| 99 | if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT)) |
| 100 | return BIO_new(BIO_s_mem()); |
| 101 | /* Else content was read in: return read only BIO for it */ |
| 102 | return BIO_new_mem_buf((*pos)->data, (*pos)->length); |
| 103 | } |
| 104 | |
| 105 | BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont) |
| 106 | { |
| 107 | BIO *cmsbio, *cont; |
| 108 | if (icont) |
| 109 | cont = icont; |
| 110 | else |
| 111 | cont = cms_content_bio(cms); |
| 112 | if (!cont) |
| 113 | { |
| 114 | CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT); |
| 115 | return NULL; |
| 116 | } |
| 117 | switch (OBJ_obj2nid(cms->contentType)) |
| 118 | { |
| 119 | |
| 120 | case NID_pkcs7_data: |
| 121 | return cont; |
| 122 | |
| 123 | case NID_pkcs7_signed: |
| 124 | cmsbio = cms_SignedData_init_bio(cms); |
| 125 | break; |
| 126 | |
| 127 | case NID_pkcs7_digest: |
| 128 | cmsbio = cms_DigestedData_init_bio(cms); |
| 129 | break; |
| 130 | #ifdef ZLIB |
| 131 | case NID_id_smime_ct_compressedData: |
| 132 | cmsbio = cms_CompressedData_init_bio(cms); |
| 133 | break; |
| 134 | #endif |
| 135 | |
| 136 | case NID_pkcs7_encrypted: |
| 137 | cmsbio = cms_EncryptedData_init_bio(cms); |
| 138 | break; |
| 139 | |
| 140 | case NID_pkcs7_enveloped: |
| 141 | cmsbio = cms_EnvelopedData_init_bio(cms); |
| 142 | break; |
| 143 | |
| 144 | default: |
| 145 | CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE); |
| 146 | return NULL; |
| 147 | } |
| 148 | |
| 149 | if (cmsbio) |
| 150 | return BIO_push(cmsbio, cont); |
| 151 | |
| 152 | if (!icont) |
| 153 | BIO_free(cont); |
| 154 | return NULL; |
| 155 | |
| 156 | } |
| 157 | |
| 158 | int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio) |
| 159 | { |
| 160 | ASN1_OCTET_STRING **pos = CMS_get0_content(cms); |
| 161 | if (!pos) |
| 162 | return 0; |
| 163 | /* If ebmedded content find memory BIO and set content */ |
| 164 | if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) |
| 165 | { |
| 166 | BIO *mbio; |
| 167 | unsigned char *cont; |
| 168 | long contlen; |
| 169 | mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM); |
| 170 | if (!mbio) |
| 171 | { |
| 172 | CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND); |
| 173 | return 0; |
| 174 | } |
| 175 | contlen = BIO_get_mem_data(mbio, &cont); |
| 176 | /* Set bio as read only so its content can't be clobbered */ |
| 177 | BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY); |
| 178 | BIO_set_mem_eof_return(mbio, 0); |
| 179 | ASN1_STRING_set0(*pos, cont, contlen); |
| 180 | (*pos)->flags &= ~ASN1_STRING_FLAG_CONT; |
| 181 | } |
| 182 | |
| 183 | switch (OBJ_obj2nid(cms->contentType)) |
| 184 | { |
| 185 | |
| 186 | case NID_pkcs7_data: |
| 187 | case NID_pkcs7_enveloped: |
| 188 | case NID_pkcs7_encrypted: |
| 189 | case NID_id_smime_ct_compressedData: |
| 190 | /* Nothing to do */ |
| 191 | return 1; |
| 192 | |
| 193 | case NID_pkcs7_signed: |
| 194 | return cms_SignedData_final(cms, cmsbio); |
| 195 | |
| 196 | case NID_pkcs7_digest: |
| 197 | return cms_DigestedData_do_final(cms, cmsbio, 0); |
| 198 | |
| 199 | default: |
| 200 | CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE); |
| 201 | return 0; |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | /* Return an OCTET STRING pointer to content. This allows it to |
| 206 | * be accessed or set later. |
| 207 | */ |
| 208 | |
| 209 | ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms) |
| 210 | { |
| 211 | switch (OBJ_obj2nid(cms->contentType)) |
| 212 | { |
| 213 | |
| 214 | case NID_pkcs7_data: |
| 215 | return &cms->d.data; |
| 216 | |
| 217 | case NID_pkcs7_signed: |
| 218 | return &cms->d.signedData->encapContentInfo->eContent; |
| 219 | |
| 220 | case NID_pkcs7_enveloped: |
| 221 | return &cms->d.envelopedData->encryptedContentInfo->encryptedContent; |
| 222 | |
| 223 | case NID_pkcs7_digest: |
| 224 | return &cms->d.digestedData->encapContentInfo->eContent; |
| 225 | |
| 226 | case NID_pkcs7_encrypted: |
| 227 | return &cms->d.encryptedData->encryptedContentInfo->encryptedContent; |
| 228 | |
| 229 | case NID_id_smime_ct_authData: |
| 230 | return &cms->d.authenticatedData->encapContentInfo->eContent; |
| 231 | |
| 232 | case NID_id_smime_ct_compressedData: |
| 233 | return &cms->d.compressedData->encapContentInfo->eContent; |
| 234 | |
| 235 | default: |
| 236 | if (cms->d.other->type == V_ASN1_OCTET_STRING) |
| 237 | return &cms->d.other->value.octet_string; |
| 238 | CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE); |
| 239 | return NULL; |
| 240 | |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | /* Return an ASN1_OBJECT pointer to content type. This allows it to |
| 245 | * be accessed or set later. |
| 246 | */ |
| 247 | |
| 248 | static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms) |
| 249 | { |
| 250 | switch (OBJ_obj2nid(cms->contentType)) |
| 251 | { |
| 252 | |
| 253 | case NID_pkcs7_signed: |
| 254 | return &cms->d.signedData->encapContentInfo->eContentType; |
| 255 | |
| 256 | case NID_pkcs7_enveloped: |
| 257 | return &cms->d.envelopedData->encryptedContentInfo->contentType; |
| 258 | |
| 259 | case NID_pkcs7_digest: |
| 260 | return &cms->d.digestedData->encapContentInfo->eContentType; |
| 261 | |
| 262 | case NID_pkcs7_encrypted: |
| 263 | return &cms->d.encryptedData->encryptedContentInfo->contentType; |
| 264 | |
| 265 | case NID_id_smime_ct_authData: |
| 266 | return &cms->d.authenticatedData->encapContentInfo->eContentType; |
| 267 | |
| 268 | case NID_id_smime_ct_compressedData: |
| 269 | return &cms->d.compressedData->encapContentInfo->eContentType; |
| 270 | |
| 271 | default: |
| 272 | CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE, |
| 273 | CMS_R_UNSUPPORTED_CONTENT_TYPE); |
| 274 | return NULL; |
| 275 | |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms) |
| 280 | { |
| 281 | ASN1_OBJECT **petype; |
| 282 | petype = cms_get0_econtent_type(cms); |
| 283 | if (petype) |
| 284 | return *petype; |
| 285 | return NULL; |
| 286 | } |
| 287 | |
| 288 | int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid) |
| 289 | { |
| 290 | ASN1_OBJECT **petype, *etype; |
| 291 | petype = cms_get0_econtent_type(cms); |
| 292 | if (!petype) |
| 293 | return 0; |
| 294 | if (!oid) |
| 295 | return 1; |
| 296 | etype = OBJ_dup(oid); |
| 297 | if (!etype) |
| 298 | return 0; |
| 299 | ASN1_OBJECT_free(*petype); |
| 300 | *petype = etype; |
| 301 | return 1; |
| 302 | } |
| 303 | |
| 304 | int CMS_is_detached(CMS_ContentInfo *cms) |
| 305 | { |
| 306 | ASN1_OCTET_STRING **pos; |
| 307 | pos = CMS_get0_content(cms); |
| 308 | if (!pos) |
| 309 | return -1; |
| 310 | if (*pos) |
| 311 | return 0; |
| 312 | return 1; |
| 313 | } |
| 314 | |
| 315 | int CMS_set_detached(CMS_ContentInfo *cms, int detached) |
| 316 | { |
| 317 | ASN1_OCTET_STRING **pos; |
| 318 | pos = CMS_get0_content(cms); |
| 319 | if (!pos) |
| 320 | return 0; |
| 321 | if (detached) |
| 322 | { |
| 323 | if (*pos) |
| 324 | { |
| 325 | ASN1_OCTET_STRING_free(*pos); |
| 326 | *pos = NULL; |
| 327 | } |
| 328 | return 1; |
| 329 | } |
| 330 | if (!*pos) |
| 331 | *pos = ASN1_OCTET_STRING_new(); |
| 332 | if (*pos) |
| 333 | { |
| 334 | /* NB: special flag to show content is created and not |
| 335 | * read in. |
| 336 | */ |
| 337 | (*pos)->flags |= ASN1_STRING_FLAG_CONT; |
| 338 | return 1; |
| 339 | } |
| 340 | CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE); |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */ |
| 345 | |
| 346 | void cms_DigestAlgorithm_set(X509_ALGOR *alg, const EVP_MD *md) |
| 347 | { |
| 348 | int param_type; |
| 349 | |
| 350 | if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT) |
| 351 | param_type = V_ASN1_UNDEF; |
| 352 | else |
| 353 | param_type = V_ASN1_NULL; |
| 354 | |
| 355 | X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL); |
| 356 | |
| 357 | } |
| 358 | |
| 359 | /* Create a digest BIO from an X509_ALGOR structure */ |
| 360 | |
| 361 | BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm) |
| 362 | { |
| 363 | BIO *mdbio = NULL; |
| 364 | ASN1_OBJECT *digestoid; |
| 365 | const EVP_MD *digest; |
| 366 | X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm); |
| 367 | digest = EVP_get_digestbyobj(digestoid); |
| 368 | if (!digest) |
| 369 | { |
| 370 | CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, |
| 371 | CMS_R_UNKNOWN_DIGEST_ALGORIHM); |
| 372 | goto err; |
| 373 | } |
| 374 | mdbio = BIO_new(BIO_f_md()); |
| 375 | if (!mdbio || !BIO_set_md(mdbio, digest)) |
| 376 | { |
| 377 | CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, |
| 378 | CMS_R_MD_BIO_INIT_ERROR); |
| 379 | goto err; |
| 380 | } |
| 381 | return mdbio; |
| 382 | err: |
| 383 | if (mdbio) |
| 384 | BIO_free(mdbio); |
| 385 | return NULL; |
| 386 | } |
| 387 | |
| 388 | /* Locate a message digest content from a BIO chain based on SignerInfo */ |
| 389 | |
| 390 | int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain, |
| 391 | X509_ALGOR *mdalg) |
| 392 | { |
| 393 | int nid; |
| 394 | ASN1_OBJECT *mdoid; |
| 395 | X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg); |
| 396 | nid = OBJ_obj2nid(mdoid); |
| 397 | /* Look for digest type to match signature */ |
| 398 | for (;;) |
| 399 | { |
| 400 | EVP_MD_CTX *mtmp; |
| 401 | chain = BIO_find_type(chain, BIO_TYPE_MD); |
| 402 | if (chain == NULL) |
| 403 | { |
| 404 | CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX, |
| 405 | CMS_R_NO_MATCHING_DIGEST); |
| 406 | return 0; |
| 407 | } |
| 408 | BIO_get_md_ctx(chain, &mtmp); |
| 409 | if (EVP_MD_CTX_type(mtmp) == nid |
| 410 | /* Workaround for broken implementations that use signature |
| 411 | * algorithm OID instead of digest. |
| 412 | */ |
| 413 | || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid) |
| 414 | return EVP_MD_CTX_copy_ex(mctx, mtmp); |
| 415 | chain = BIO_next(chain); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | static STACK_OF(CMS_CertificateChoices) **cms_get0_certificate_choices(CMS_ContentInfo *cms) |
| 420 | { |
| 421 | switch (OBJ_obj2nid(cms->contentType)) |
| 422 | { |
| 423 | |
| 424 | case NID_pkcs7_signed: |
| 425 | return &cms->d.signedData->certificates; |
| 426 | |
| 427 | case NID_pkcs7_enveloped: |
| 428 | return &cms->d.envelopedData->originatorInfo->certificates; |
| 429 | |
| 430 | default: |
| 431 | CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES, |
| 432 | CMS_R_UNSUPPORTED_CONTENT_TYPE); |
| 433 | return NULL; |
| 434 | |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms) |
| 439 | { |
| 440 | STACK_OF(CMS_CertificateChoices) **pcerts; |
| 441 | CMS_CertificateChoices *cch; |
| 442 | pcerts = cms_get0_certificate_choices(cms); |
| 443 | if (!pcerts) |
| 444 | return NULL; |
| 445 | if (!*pcerts) |
| 446 | *pcerts = sk_CMS_CertificateChoices_new_null(); |
| 447 | if (!*pcerts) |
| 448 | return NULL; |
| 449 | cch = M_ASN1_new_of(CMS_CertificateChoices); |
| 450 | if (!cch) |
| 451 | return NULL; |
| 452 | if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) |
| 453 | { |
| 454 | M_ASN1_free_of(cch, CMS_CertificateChoices); |
| 455 | return NULL; |
| 456 | } |
| 457 | return cch; |
| 458 | } |
| 459 | |
| 460 | int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert) |
| 461 | { |
| 462 | CMS_CertificateChoices *cch; |
| 463 | STACK_OF(CMS_CertificateChoices) **pcerts; |
| 464 | int i; |
| 465 | pcerts = cms_get0_certificate_choices(cms); |
| 466 | if (!pcerts) |
| 467 | return 0; |
| 468 | for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) |
| 469 | { |
| 470 | cch = sk_CMS_CertificateChoices_value(*pcerts, i); |
| 471 | if (cch->type == CMS_CERTCHOICE_CERT) |
| 472 | { |
| 473 | if (!X509_cmp(cch->d.certificate, cert)) |
| 474 | { |
| 475 | CMSerr(CMS_F_CMS_ADD0_CERT, |
| 476 | CMS_R_CERTIFICATE_ALREADY_PRESENT); |
| 477 | return 0; |
| 478 | } |
| 479 | } |
| 480 | } |
| 481 | cch = CMS_add0_CertificateChoices(cms); |
| 482 | if (!cch) |
| 483 | return 0; |
| 484 | cch->type = CMS_CERTCHOICE_CERT; |
| 485 | cch->d.certificate = cert; |
| 486 | return 1; |
| 487 | } |
| 488 | |
| 489 | int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert) |
| 490 | { |
| 491 | int r; |
| 492 | r = CMS_add0_cert(cms, cert); |
| 493 | if (r > 0) |
| 494 | CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509); |
| 495 | return r; |
| 496 | } |
| 497 | |
| 498 | static STACK_OF(CMS_RevocationInfoChoice) **cms_get0_revocation_choices(CMS_ContentInfo *cms) |
| 499 | { |
| 500 | switch (OBJ_obj2nid(cms->contentType)) |
| 501 | { |
| 502 | |
| 503 | case NID_pkcs7_signed: |
| 504 | return &cms->d.signedData->crls; |
| 505 | |
| 506 | case NID_pkcs7_enveloped: |
| 507 | return &cms->d.envelopedData->originatorInfo->crls; |
| 508 | |
| 509 | default: |
| 510 | CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES, |
| 511 | CMS_R_UNSUPPORTED_CONTENT_TYPE); |
| 512 | return NULL; |
| 513 | |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms) |
| 518 | { |
| 519 | STACK_OF(CMS_RevocationInfoChoice) **pcrls; |
| 520 | CMS_RevocationInfoChoice *rch; |
| 521 | pcrls = cms_get0_revocation_choices(cms); |
| 522 | if (!pcrls) |
| 523 | return NULL; |
| 524 | if (!*pcrls) |
| 525 | *pcrls = sk_CMS_RevocationInfoChoice_new_null(); |
| 526 | if (!*pcrls) |
| 527 | return NULL; |
| 528 | rch = M_ASN1_new_of(CMS_RevocationInfoChoice); |
| 529 | if (!rch) |
| 530 | return NULL; |
| 531 | if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) |
| 532 | { |
| 533 | M_ASN1_free_of(rch, CMS_RevocationInfoChoice); |
| 534 | return NULL; |
| 535 | } |
| 536 | return rch; |
| 537 | } |
| 538 | |
| 539 | int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl) |
| 540 | { |
| 541 | CMS_RevocationInfoChoice *rch; |
| 542 | rch = CMS_add0_RevocationInfoChoice(cms); |
| 543 | if (!rch) |
| 544 | return 0; |
| 545 | rch->type = CMS_REVCHOICE_CRL; |
| 546 | rch->d.crl = crl; |
| 547 | return 1; |
| 548 | } |
| 549 | |
| 550 | int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl) |
| 551 | { |
| 552 | int r; |
| 553 | r = CMS_add0_crl(cms, crl); |
| 554 | if (r > 0) |
| 555 | CRYPTO_add(&crl->references, 1, CRYPTO_LOCK_X509_CRL); |
| 556 | return r; |
| 557 | } |
| 558 | |
| 559 | STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms) |
| 560 | { |
| 561 | STACK_OF(X509) *certs = NULL; |
| 562 | CMS_CertificateChoices *cch; |
| 563 | STACK_OF(CMS_CertificateChoices) **pcerts; |
| 564 | int i; |
| 565 | pcerts = cms_get0_certificate_choices(cms); |
| 566 | if (!pcerts) |
| 567 | return NULL; |
| 568 | for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) |
| 569 | { |
| 570 | cch = sk_CMS_CertificateChoices_value(*pcerts, i); |
| 571 | if (cch->type == 0) |
| 572 | { |
| 573 | if (!certs) |
| 574 | { |
| 575 | certs = sk_X509_new_null(); |
| 576 | if (!certs) |
| 577 | return NULL; |
| 578 | } |
| 579 | if (!sk_X509_push(certs, cch->d.certificate)) |
| 580 | { |
| 581 | sk_X509_pop_free(certs, X509_free); |
| 582 | return NULL; |
| 583 | } |
| 584 | CRYPTO_add(&cch->d.certificate->references, |
| 585 | 1, CRYPTO_LOCK_X509); |
| 586 | } |
| 587 | } |
| 588 | return certs; |
| 589 | |
| 590 | } |
| 591 | |
| 592 | STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms) |
| 593 | { |
| 594 | STACK_OF(X509_CRL) *crls = NULL; |
| 595 | STACK_OF(CMS_RevocationInfoChoice) **pcrls; |
| 596 | CMS_RevocationInfoChoice *rch; |
| 597 | int i; |
| 598 | pcrls = cms_get0_revocation_choices(cms); |
| 599 | if (!pcrls) |
| 600 | return NULL; |
| 601 | for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) |
| 602 | { |
| 603 | rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i); |
| 604 | if (rch->type == 0) |
| 605 | { |
| 606 | if (!crls) |
| 607 | { |
| 608 | crls = sk_X509_CRL_new_null(); |
| 609 | if (!crls) |
| 610 | return NULL; |
| 611 | } |
| 612 | if (!sk_X509_CRL_push(crls, rch->d.crl)) |
| 613 | { |
| 614 | sk_X509_CRL_pop_free(crls, X509_CRL_free); |
| 615 | return NULL; |
| 616 | } |
| 617 | CRYPTO_add(&rch->d.crl->references, |
| 618 | 1, CRYPTO_LOCK_X509_CRL); |
| 619 | } |
| 620 | } |
| 621 | return crls; |
| 622 | } |