1 /* 2 * Copyright 2008-2023 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <openssl/asn1t.h> 11 #include <openssl/x509v3.h> 12 #include <openssl/err.h> 13 #include <openssl/pem.h> 14 #include <openssl/bio.h> 15 #include <openssl/asn1.h> 16 #include <openssl/cms.h> 17 #include <openssl/cms.h> 18 #include "internal/sizes.h" 19 #include "crypto/x509.h" 20 #include "cms_local.h" 21 22 static STACK_OF(CMS_CertificateChoices) 23 **cms_get0_certificate_choices(CMS_ContentInfo *cms); 24 25 IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo) 26 27 CMS_ContentInfo *d2i_CMS_ContentInfo(CMS_ContentInfo **a, 28 const unsigned char **in, long len) 29 { 30 CMS_ContentInfo *ci; 31 const CMS_CTX *ctx = ossl_cms_get0_cmsctx(a == NULL ? NULL : *a); 32 33 ci = (CMS_ContentInfo *)ASN1_item_d2i_ex((ASN1_VALUE **)a, in, len, 34 (CMS_ContentInfo_it()), 35 ossl_cms_ctx_get0_libctx(ctx), 36 ossl_cms_ctx_get0_propq(ctx)); 37 if (ci != NULL) { 38 ERR_set_mark(); 39 ossl_cms_resolve_libctx(ci); 40 ERR_pop_to_mark(); 41 } 42 return ci; 43 } 44 45 int i2d_CMS_ContentInfo(const CMS_ContentInfo *a, unsigned char **out) 46 { 47 return ASN1_item_i2d((const ASN1_VALUE *)a, out, (CMS_ContentInfo_it())); 48 } 49 50 CMS_ContentInfo *CMS_ContentInfo_new_ex(OSSL_LIB_CTX *libctx, const char *propq) 51 { 52 CMS_ContentInfo *ci; 53 54 ci = (CMS_ContentInfo *)ASN1_item_new_ex(ASN1_ITEM_rptr(CMS_ContentInfo), 55 libctx, propq); 56 if (ci != NULL) { 57 ci->ctx.libctx = libctx; 58 ci->ctx.propq = NULL; 59 if (propq != NULL) { 60 ci->ctx.propq = OPENSSL_strdup(propq); 61 if (ci->ctx.propq == NULL) { 62 CMS_ContentInfo_free(ci); 63 ci = NULL; 64 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE); 65 } 66 } 67 } 68 return ci; 69 } 70 71 CMS_ContentInfo *CMS_ContentInfo_new(void) 72 { 73 return CMS_ContentInfo_new_ex(NULL, NULL); 74 } 75 76 void CMS_ContentInfo_free(CMS_ContentInfo *cms) 77 { 78 if (cms != NULL) { 79 CMS_EncryptedContentInfo *ec = ossl_cms_get0_env_enc_content(cms); 80 81 if (ec != NULL) 82 OPENSSL_clear_free(ec->key, ec->keylen); 83 OPENSSL_free(cms->ctx.propq); 84 ASN1_item_free((ASN1_VALUE *)cms, ASN1_ITEM_rptr(CMS_ContentInfo)); 85 } 86 } 87 88 const CMS_CTX *ossl_cms_get0_cmsctx(const CMS_ContentInfo *cms) 89 { 90 return cms != NULL ? &cms->ctx : NULL; 91 } 92 93 OSSL_LIB_CTX *ossl_cms_ctx_get0_libctx(const CMS_CTX *ctx) 94 { 95 return ctx != NULL ? ctx->libctx : NULL; 96 } 97 98 const char *ossl_cms_ctx_get0_propq(const CMS_CTX *ctx) 99 { 100 return ctx != NULL ? ctx->propq : NULL; 101 } 102 103 void ossl_cms_resolve_libctx(CMS_ContentInfo *ci) 104 { 105 int i; 106 CMS_CertificateChoices *cch; 107 STACK_OF(CMS_CertificateChoices) **pcerts; 108 const CMS_CTX *ctx = ossl_cms_get0_cmsctx(ci); 109 OSSL_LIB_CTX *libctx = ossl_cms_ctx_get0_libctx(ctx); 110 const char *propq = ossl_cms_ctx_get0_propq(ctx); 111 112 ossl_cms_SignerInfos_set_cmsctx(ci); 113 ossl_cms_RecipientInfos_set_cmsctx(ci); 114 115 pcerts = cms_get0_certificate_choices(ci); 116 if (pcerts != NULL) { 117 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) { 118 cch = sk_CMS_CertificateChoices_value(*pcerts, i); 119 if (cch->type == CMS_CERTCHOICE_CERT) 120 ossl_x509_set0_libctx(cch->d.certificate, libctx, propq); 121 } 122 } 123 } 124 125 const ASN1_OBJECT *CMS_get0_type(const CMS_ContentInfo *cms) 126 { 127 return cms->contentType; 128 } 129 130 CMS_ContentInfo *ossl_cms_Data_create(OSSL_LIB_CTX *libctx, const char *propq) 131 { 132 CMS_ContentInfo *cms = CMS_ContentInfo_new_ex(libctx, propq); 133 134 if (cms != NULL) { 135 cms->contentType = OBJ_nid2obj(NID_pkcs7_data); 136 /* Never detached */ 137 CMS_set_detached(cms, 0); 138 } 139 return cms; 140 } 141 142 BIO *ossl_cms_content_bio(CMS_ContentInfo *cms) 143 { 144 ASN1_OCTET_STRING **pos = CMS_get0_content(cms); 145 146 if (pos == NULL) 147 return NULL; 148 /* If content detached data goes nowhere: create NULL BIO */ 149 if (*pos == NULL) 150 return BIO_new(BIO_s_null()); 151 /* 152 * If content not detached and created return memory BIO 153 */ 154 if (*pos == NULL || ((*pos)->flags == ASN1_STRING_FLAG_CONT)) 155 return BIO_new(BIO_s_mem()); 156 /* Else content was read in: return read only BIO for it */ 157 return BIO_new_mem_buf((*pos)->data, (*pos)->length); 158 } 159 160 BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont) 161 { 162 BIO *cmsbio, *cont; 163 if (icont) 164 cont = icont; 165 else 166 cont = ossl_cms_content_bio(cms); 167 if (!cont) { 168 ERR_raise(ERR_LIB_CMS, CMS_R_NO_CONTENT); 169 return NULL; 170 } 171 switch (OBJ_obj2nid(cms->contentType)) { 172 173 case NID_pkcs7_data: 174 return cont; 175 176 case NID_pkcs7_signed: 177 cmsbio = ossl_cms_SignedData_init_bio(cms); 178 break; 179 180 case NID_pkcs7_digest: 181 cmsbio = ossl_cms_DigestedData_init_bio(cms); 182 break; 183 #ifdef ZLIB 184 case NID_id_smime_ct_compressedData: 185 cmsbio = ossl_cms_CompressedData_init_bio(cms); 186 break; 187 #endif 188 189 case NID_pkcs7_encrypted: 190 cmsbio = ossl_cms_EncryptedData_init_bio(cms); 191 break; 192 193 case NID_pkcs7_enveloped: 194 cmsbio = ossl_cms_EnvelopedData_init_bio(cms); 195 break; 196 197 case NID_id_smime_ct_authEnvelopedData: 198 cmsbio = ossl_cms_AuthEnvelopedData_init_bio(cms); 199 break; 200 201 default: 202 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_TYPE); 203 goto err; 204 } 205 206 if (cmsbio) 207 return BIO_push(cmsbio, cont); 208 err: 209 if (!icont) 210 BIO_free(cont); 211 return NULL; 212 213 } 214 215 /* unfortunately cannot constify SMIME_write_ASN1() due to this function */ 216 int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio) 217 { 218 ASN1_OCTET_STRING **pos = CMS_get0_content(cms); 219 220 if (pos == NULL) 221 return 0; 222 /* If embedded content find memory BIO and set content */ 223 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) { 224 BIO *mbio; 225 unsigned char *cont; 226 long contlen; 227 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM); 228 if (!mbio) { 229 ERR_raise(ERR_LIB_CMS, CMS_R_CONTENT_NOT_FOUND); 230 return 0; 231 } 232 contlen = BIO_get_mem_data(mbio, &cont); 233 /* Set bio as read only so its content can't be clobbered */ 234 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY); 235 BIO_set_mem_eof_return(mbio, 0); 236 ASN1_STRING_set0(*pos, cont, contlen); 237 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT; 238 } 239 240 switch (OBJ_obj2nid(cms->contentType)) { 241 242 case NID_pkcs7_data: 243 case NID_pkcs7_encrypted: 244 case NID_id_smime_ct_compressedData: 245 /* Nothing to do */ 246 return 1; 247 248 case NID_pkcs7_enveloped: 249 return ossl_cms_EnvelopedData_final(cms, cmsbio); 250 251 case NID_id_smime_ct_authEnvelopedData: 252 return ossl_cms_AuthEnvelopedData_final(cms, cmsbio); 253 254 case NID_pkcs7_signed: 255 return ossl_cms_SignedData_final(cms, cmsbio); 256 257 case NID_pkcs7_digest: 258 return ossl_cms_DigestedData_do_final(cms, cmsbio, 0); 259 260 default: 261 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_TYPE); 262 return 0; 263 } 264 } 265 266 /* 267 * Return an OCTET STRING pointer to content. This allows it to be accessed 268 * or set later. 269 */ 270 271 ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms) 272 { 273 switch (OBJ_obj2nid(cms->contentType)) { 274 275 case NID_pkcs7_data: 276 return &cms->d.data; 277 278 case NID_pkcs7_signed: 279 return &cms->d.signedData->encapContentInfo->eContent; 280 281 case NID_pkcs7_enveloped: 282 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent; 283 284 case NID_pkcs7_digest: 285 return &cms->d.digestedData->encapContentInfo->eContent; 286 287 case NID_pkcs7_encrypted: 288 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent; 289 290 case NID_id_smime_ct_authEnvelopedData: 291 return &cms->d.authEnvelopedData->authEncryptedContentInfo 292 ->encryptedContent; 293 294 case NID_id_smime_ct_authData: 295 return &cms->d.authenticatedData->encapContentInfo->eContent; 296 297 case NID_id_smime_ct_compressedData: 298 return &cms->d.compressedData->encapContentInfo->eContent; 299 300 default: 301 if (cms->d.other->type == V_ASN1_OCTET_STRING) 302 return &cms->d.other->value.octet_string; 303 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE); 304 return NULL; 305 306 } 307 } 308 309 /* 310 * Return an ASN1_OBJECT pointer to content type. This allows it to be 311 * accessed or set later. 312 */ 313 314 static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms) 315 { 316 switch (OBJ_obj2nid(cms->contentType)) { 317 318 case NID_pkcs7_signed: 319 return &cms->d.signedData->encapContentInfo->eContentType; 320 321 case NID_pkcs7_enveloped: 322 return &cms->d.envelopedData->encryptedContentInfo->contentType; 323 324 case NID_pkcs7_digest: 325 return &cms->d.digestedData->encapContentInfo->eContentType; 326 327 case NID_pkcs7_encrypted: 328 return &cms->d.encryptedData->encryptedContentInfo->contentType; 329 330 case NID_id_smime_ct_authEnvelopedData: 331 return &cms->d.authEnvelopedData->authEncryptedContentInfo 332 ->contentType; 333 case NID_id_smime_ct_authData: 334 return &cms->d.authenticatedData->encapContentInfo->eContentType; 335 336 case NID_id_smime_ct_compressedData: 337 return &cms->d.compressedData->encapContentInfo->eContentType; 338 339 default: 340 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE); 341 return NULL; 342 343 } 344 } 345 346 const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms) 347 { 348 ASN1_OBJECT **petype; 349 petype = cms_get0_econtent_type(cms); 350 if (petype) 351 return *petype; 352 return NULL; 353 } 354 355 int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid) 356 { 357 ASN1_OBJECT **petype, *etype; 358 359 petype = cms_get0_econtent_type(cms); 360 if (petype == NULL) 361 return 0; 362 if (oid == NULL) 363 return 1; 364 etype = OBJ_dup(oid); 365 if (etype == NULL) 366 return 0; 367 ASN1_OBJECT_free(*petype); 368 *petype = etype; 369 return 1; 370 } 371 372 int CMS_is_detached(CMS_ContentInfo *cms) 373 { 374 ASN1_OCTET_STRING **pos; 375 376 pos = CMS_get0_content(cms); 377 if (pos == NULL) 378 return -1; 379 if (*pos != NULL) 380 return 0; 381 return 1; 382 } 383 384 int CMS_set_detached(CMS_ContentInfo *cms, int detached) 385 { 386 ASN1_OCTET_STRING **pos; 387 388 pos = CMS_get0_content(cms); 389 if (pos == NULL) 390 return 0; 391 if (detached) { 392 ASN1_OCTET_STRING_free(*pos); 393 *pos = NULL; 394 return 1; 395 } 396 if (*pos == NULL) 397 *pos = ASN1_OCTET_STRING_new(); 398 if (*pos != NULL) { 399 /* 400 * NB: special flag to show content is created and not read in. 401 */ 402 (*pos)->flags |= ASN1_STRING_FLAG_CONT; 403 return 1; 404 } 405 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE); 406 return 0; 407 } 408 409 /* Create a digest BIO from an X509_ALGOR structure */ 410 411 BIO *ossl_cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm, 412 const CMS_CTX *ctx) 413 { 414 BIO *mdbio = NULL; 415 const ASN1_OBJECT *digestoid; 416 const EVP_MD *digest = NULL; 417 EVP_MD *fetched_digest = NULL; 418 char alg[OSSL_MAX_NAME_SIZE]; 419 420 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm); 421 OBJ_obj2txt(alg, sizeof(alg), digestoid, 0); 422 423 (void)ERR_set_mark(); 424 fetched_digest = EVP_MD_fetch(ossl_cms_ctx_get0_libctx(ctx), alg, 425 ossl_cms_ctx_get0_propq(ctx)); 426 427 if (fetched_digest != NULL) 428 digest = fetched_digest; 429 else 430 digest = EVP_get_digestbyobj(digestoid); 431 if (digest == NULL) { 432 (void)ERR_clear_last_mark(); 433 ERR_raise(ERR_LIB_CMS, CMS_R_UNKNOWN_DIGEST_ALGORITHM); 434 goto err; 435 } 436 (void)ERR_pop_to_mark(); 437 438 mdbio = BIO_new(BIO_f_md()); 439 if (mdbio == NULL || BIO_set_md(mdbio, digest) <= 0) { 440 ERR_raise(ERR_LIB_CMS, CMS_R_MD_BIO_INIT_ERROR); 441 goto err; 442 } 443 EVP_MD_free(fetched_digest); 444 return mdbio; 445 err: 446 EVP_MD_free(fetched_digest); 447 BIO_free(mdbio); 448 return NULL; 449 } 450 451 /* Locate a message digest content from a BIO chain based on SignerInfo */ 452 453 int ossl_cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain, 454 X509_ALGOR *mdalg) 455 { 456 int nid; 457 const ASN1_OBJECT *mdoid; 458 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg); 459 nid = OBJ_obj2nid(mdoid); 460 /* Look for digest type to match signature */ 461 for (;;) { 462 EVP_MD_CTX *mtmp; 463 chain = BIO_find_type(chain, BIO_TYPE_MD); 464 if (chain == NULL) { 465 ERR_raise(ERR_LIB_CMS, CMS_R_NO_MATCHING_DIGEST); 466 return 0; 467 } 468 BIO_get_md_ctx(chain, &mtmp); 469 if (EVP_MD_CTX_get_type(mtmp) == nid 470 /* 471 * Workaround for broken implementations that use signature 472 * algorithm OID instead of digest. 473 */ 474 || EVP_MD_get_pkey_type(EVP_MD_CTX_get0_md(mtmp)) == nid) 475 return EVP_MD_CTX_copy_ex(mctx, mtmp); 476 chain = BIO_next(chain); 477 } 478 } 479 480 static STACK_OF(CMS_CertificateChoices) 481 **cms_get0_certificate_choices(CMS_ContentInfo *cms) 482 { 483 switch (OBJ_obj2nid(cms->contentType)) { 484 485 case NID_pkcs7_signed: 486 return &cms->d.signedData->certificates; 487 488 case NID_pkcs7_enveloped: 489 if (cms->d.envelopedData->originatorInfo == NULL) 490 return NULL; 491 return &cms->d.envelopedData->originatorInfo->certificates; 492 493 case NID_id_smime_ct_authEnvelopedData: 494 if (cms->d.authEnvelopedData->originatorInfo == NULL) 495 return NULL; 496 return &cms->d.authEnvelopedData->originatorInfo->certificates; 497 498 default: 499 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE); 500 return NULL; 501 502 } 503 } 504 505 CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms) 506 { 507 STACK_OF(CMS_CertificateChoices) **pcerts; 508 CMS_CertificateChoices *cch; 509 510 pcerts = cms_get0_certificate_choices(cms); 511 if (pcerts == NULL) 512 return NULL; 513 if (*pcerts == NULL) 514 *pcerts = sk_CMS_CertificateChoices_new_null(); 515 if (*pcerts == NULL) 516 return NULL; 517 cch = M_ASN1_new_of(CMS_CertificateChoices); 518 if (!cch) 519 return NULL; 520 if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) { 521 M_ASN1_free_of(cch, CMS_CertificateChoices); 522 return NULL; 523 } 524 return cch; 525 } 526 527 int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert) 528 { 529 CMS_CertificateChoices *cch; 530 STACK_OF(CMS_CertificateChoices) **pcerts; 531 int i; 532 533 pcerts = cms_get0_certificate_choices(cms); 534 if (pcerts == NULL) 535 return 0; 536 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) { 537 cch = sk_CMS_CertificateChoices_value(*pcerts, i); 538 if (cch->type == CMS_CERTCHOICE_CERT) { 539 if (!X509_cmp(cch->d.certificate, cert)) { 540 ERR_raise(ERR_LIB_CMS, CMS_R_CERTIFICATE_ALREADY_PRESENT); 541 return 0; 542 } 543 } 544 } 545 cch = CMS_add0_CertificateChoices(cms); 546 if (!cch) 547 return 0; 548 cch->type = CMS_CERTCHOICE_CERT; 549 cch->d.certificate = cert; 550 return 1; 551 } 552 553 int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert) 554 { 555 int r; 556 r = CMS_add0_cert(cms, cert); 557 if (r > 0) 558 X509_up_ref(cert); 559 return r; 560 } 561 562 static STACK_OF(CMS_RevocationInfoChoice) 563 **cms_get0_revocation_choices(CMS_ContentInfo *cms) 564 { 565 switch (OBJ_obj2nid(cms->contentType)) { 566 567 case NID_pkcs7_signed: 568 return &cms->d.signedData->crls; 569 570 case NID_pkcs7_enveloped: 571 if (cms->d.envelopedData->originatorInfo == NULL) 572 return NULL; 573 return &cms->d.envelopedData->originatorInfo->crls; 574 575 case NID_id_smime_ct_authEnvelopedData: 576 if (cms->d.authEnvelopedData->originatorInfo == NULL) 577 return NULL; 578 return &cms->d.authEnvelopedData->originatorInfo->crls; 579 580 default: 581 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE); 582 return NULL; 583 584 } 585 } 586 587 CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms) 588 { 589 STACK_OF(CMS_RevocationInfoChoice) **pcrls; 590 CMS_RevocationInfoChoice *rch; 591 592 pcrls = cms_get0_revocation_choices(cms); 593 if (pcrls == NULL) 594 return NULL; 595 if (*pcrls == NULL) 596 *pcrls = sk_CMS_RevocationInfoChoice_new_null(); 597 if (*pcrls == NULL) 598 return NULL; 599 rch = M_ASN1_new_of(CMS_RevocationInfoChoice); 600 if (rch == NULL) 601 return NULL; 602 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) { 603 M_ASN1_free_of(rch, CMS_RevocationInfoChoice); 604 return NULL; 605 } 606 return rch; 607 } 608 609 int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl) 610 { 611 CMS_RevocationInfoChoice *rch; 612 rch = CMS_add0_RevocationInfoChoice(cms); 613 if (!rch) 614 return 0; 615 rch->type = CMS_REVCHOICE_CRL; 616 rch->d.crl = crl; 617 return 1; 618 } 619 620 int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl) 621 { 622 if (!X509_CRL_up_ref(crl)) 623 return 0; 624 if (CMS_add0_crl(cms, crl)) 625 return 1; 626 X509_CRL_free(crl); 627 return 0; 628 } 629 630 STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms) 631 { 632 STACK_OF(X509) *certs = NULL; 633 CMS_CertificateChoices *cch; 634 STACK_OF(CMS_CertificateChoices) **pcerts; 635 int i; 636 637 pcerts = cms_get0_certificate_choices(cms); 638 if (pcerts == NULL) 639 return NULL; 640 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) { 641 cch = sk_CMS_CertificateChoices_value(*pcerts, i); 642 if (cch->type == 0) { 643 if (!ossl_x509_add_cert_new(&certs, cch->d.certificate, 644 X509_ADD_FLAG_UP_REF)) { 645 sk_X509_pop_free(certs, X509_free); 646 return NULL; 647 } 648 } 649 } 650 return certs; 651 652 } 653 654 STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms) 655 { 656 STACK_OF(X509_CRL) *crls = NULL; 657 STACK_OF(CMS_RevocationInfoChoice) **pcrls; 658 CMS_RevocationInfoChoice *rch; 659 int i; 660 661 pcrls = cms_get0_revocation_choices(cms); 662 if (pcrls == NULL) 663 return NULL; 664 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) { 665 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i); 666 if (rch->type == 0) { 667 if (!crls) { 668 crls = sk_X509_CRL_new_null(); 669 if (!crls) 670 return NULL; 671 } 672 if (!sk_X509_CRL_push(crls, rch->d.crl)) { 673 sk_X509_CRL_pop_free(crls, X509_CRL_free); 674 return NULL; 675 } 676 X509_CRL_up_ref(rch->d.crl); 677 } 678 } 679 return crls; 680 } 681 682 int ossl_cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert) 683 { 684 int ret; 685 ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert)); 686 if (ret) 687 return ret; 688 return ASN1_INTEGER_cmp(ias->serialNumber, X509_get0_serialNumber(cert)); 689 } 690 691 int ossl_cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert) 692 { 693 const ASN1_OCTET_STRING *cert_keyid = X509_get0_subject_key_id(cert); 694 695 if (cert_keyid == NULL) 696 return -1; 697 return ASN1_OCTET_STRING_cmp(keyid, cert_keyid); 698 } 699 700 int ossl_cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert) 701 { 702 CMS_IssuerAndSerialNumber *ias; 703 ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber); 704 if (!ias) 705 goto err; 706 if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert))) 707 goto err; 708 if (!ASN1_STRING_copy(ias->serialNumber, X509_get0_serialNumber(cert))) 709 goto err; 710 M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber); 711 *pias = ias; 712 return 1; 713 err: 714 M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber); 715 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE); 716 return 0; 717 } 718 719 int ossl_cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert) 720 { 721 ASN1_OCTET_STRING *keyid = NULL; 722 const ASN1_OCTET_STRING *cert_keyid; 723 cert_keyid = X509_get0_subject_key_id(cert); 724 if (cert_keyid == NULL) { 725 ERR_raise(ERR_LIB_CMS, CMS_R_CERTIFICATE_HAS_NO_KEYID); 726 return 0; 727 } 728 keyid = ASN1_STRING_dup(cert_keyid); 729 if (!keyid) { 730 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE); 731 return 0; 732 } 733 ASN1_OCTET_STRING_free(*pkeyid); 734 *pkeyid = keyid; 735 return 1; 736 } 737