Line data Source code
1 : /* crypto/cms/cms_lib.c */
2 : /*
3 : * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 : * project.
5 : */
6 : /* ====================================================================
7 : * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 : *
9 : * Redistribution and use in source and binary forms, with or without
10 : * modification, are permitted provided that the following conditions
11 : * are met:
12 : *
13 : * 1. Redistributions of source code must retain the above copyright
14 : * notice, this list of conditions and the following disclaimer.
15 : *
16 : * 2. Redistributions in binary form must reproduce the above copyright
17 : * notice, this list of conditions and the following disclaimer in
18 : * the documentation and/or other materials provided with the
19 : * distribution.
20 : *
21 : * 3. All advertising materials mentioning features or use of this
22 : * software must display the following acknowledgment:
23 : * "This product includes software developed by the OpenSSL Project
24 : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 : *
26 : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 : * endorse or promote products derived from this software without
28 : * prior written permission. For written permission, please contact
29 : * licensing@OpenSSL.org.
30 : *
31 : * 5. Products derived from this software may not be called "OpenSSL"
32 : * nor may "OpenSSL" appear in their names without prior written
33 : * permission of the OpenSSL Project.
34 : *
35 : * 6. Redistributions of any form whatsoever must retain the following
36 : * acknowledgment:
37 : * "This product includes software developed by the OpenSSL Project
38 : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 : *
40 : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 : * OF THE POSSIBILITY OF SUCH DAMAGE.
52 : * ====================================================================
53 : */
54 :
55 : #include <openssl/asn1t.h>
56 : #include <openssl/x509v3.h>
57 : #include <openssl/err.h>
58 : #include <openssl/pem.h>
59 : #include <openssl/bio.h>
60 : #include <openssl/asn1.h>
61 : #include "cms.h"
62 : #include "cms_lcl.h"
63 :
64 0 : IMPLEMENT_ASN1_FUNCTIONS(CMS_ContentInfo)
65 0 : IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo)
66 :
67 : DECLARE_ASN1_ITEM(CMS_CertificateChoices)
68 : DECLARE_ASN1_ITEM(CMS_RevocationInfoChoice)
69 : DECLARE_STACK_OF(CMS_CertificateChoices)
70 : DECLARE_STACK_OF(CMS_RevocationInfoChoice)
71 :
72 0 : const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms)
73 : {
74 0 : return cms->contentType;
75 : }
76 :
77 0 : CMS_ContentInfo *cms_Data_create(void)
78 : {
79 : CMS_ContentInfo *cms;
80 : cms = CMS_ContentInfo_new();
81 0 : if (cms) {
82 0 : cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
83 : /* Never detached */
84 0 : CMS_set_detached(cms, 0);
85 : }
86 0 : return cms;
87 : }
88 :
89 0 : BIO *cms_content_bio(CMS_ContentInfo *cms)
90 : {
91 0 : ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
92 0 : if (!pos)
93 : return NULL;
94 : /* If content detached data goes nowhere: create NULL BIO */
95 0 : if (!*pos)
96 0 : return BIO_new(BIO_s_null());
97 : /*
98 : * If content not detached and created return memory BIO
99 : */
100 0 : if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
101 0 : return BIO_new(BIO_s_mem());
102 : /* Else content was read in: return read only BIO for it */
103 0 : return BIO_new_mem_buf((*pos)->data, (*pos)->length);
104 : }
105 :
106 0 : BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
107 : {
108 : BIO *cmsbio, *cont;
109 0 : if (icont)
110 : cont = icont;
111 : else
112 0 : cont = cms_content_bio(cms);
113 0 : if (!cont) {
114 0 : CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT);
115 0 : return NULL;
116 : }
117 0 : switch (OBJ_obj2nid(cms->contentType)) {
118 :
119 : case NID_pkcs7_data:
120 : return cont;
121 :
122 : case NID_pkcs7_signed:
123 0 : cmsbio = cms_SignedData_init_bio(cms);
124 0 : break;
125 :
126 : case NID_pkcs7_digest:
127 0 : cmsbio = cms_DigestedData_init_bio(cms);
128 0 : break;
129 : #ifdef ZLIB
130 : case NID_id_smime_ct_compressedData:
131 : cmsbio = cms_CompressedData_init_bio(cms);
132 : break;
133 : #endif
134 :
135 : case NID_pkcs7_encrypted:
136 0 : cmsbio = cms_EncryptedData_init_bio(cms);
137 0 : break;
138 :
139 : case NID_pkcs7_enveloped:
140 0 : cmsbio = cms_EnvelopedData_init_bio(cms);
141 0 : break;
142 :
143 : default:
144 0 : CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE);
145 0 : return NULL;
146 : }
147 :
148 0 : if (cmsbio)
149 0 : return BIO_push(cmsbio, cont);
150 :
151 0 : if (!icont)
152 0 : BIO_free(cont);
153 : return NULL;
154 :
155 : }
156 :
157 0 : int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
158 : {
159 0 : ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
160 0 : if (!pos)
161 : return 0;
162 : /* If ebmedded content find memory BIO and set content */
163 0 : if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) {
164 : BIO *mbio;
165 : unsigned char *cont;
166 : long contlen;
167 0 : mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
168 0 : if (!mbio) {
169 0 : CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
170 0 : return 0;
171 : }
172 0 : contlen = BIO_get_mem_data(mbio, &cont);
173 : /* Set bio as read only so its content can't be clobbered */
174 0 : BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
175 0 : BIO_set_mem_eof_return(mbio, 0);
176 0 : ASN1_STRING_set0(*pos, cont, contlen);
177 0 : (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
178 : }
179 :
180 0 : switch (OBJ_obj2nid(cms->contentType)) {
181 :
182 : case NID_pkcs7_data:
183 : case NID_pkcs7_enveloped:
184 : case NID_pkcs7_encrypted:
185 : case NID_id_smime_ct_compressedData:
186 : /* Nothing to do */
187 : return 1;
188 :
189 : case NID_pkcs7_signed:
190 0 : return cms_SignedData_final(cms, cmsbio);
191 :
192 : case NID_pkcs7_digest:
193 0 : return cms_DigestedData_do_final(cms, cmsbio, 0);
194 :
195 : default:
196 0 : CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
197 0 : return 0;
198 : }
199 : }
200 :
201 : /*
202 : * Return an OCTET STRING pointer to content. This allows it to be accessed
203 : * or set later.
204 : */
205 :
206 0 : ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
207 : {
208 0 : switch (OBJ_obj2nid(cms->contentType)) {
209 :
210 : case NID_pkcs7_data:
211 0 : return &cms->d.data;
212 :
213 : case NID_pkcs7_signed:
214 0 : return &cms->d.signedData->encapContentInfo->eContent;
215 :
216 : case NID_pkcs7_enveloped:
217 0 : return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
218 :
219 : case NID_pkcs7_digest:
220 0 : return &cms->d.digestedData->encapContentInfo->eContent;
221 :
222 : case NID_pkcs7_encrypted:
223 0 : return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
224 :
225 : case NID_id_smime_ct_authData:
226 0 : return &cms->d.authenticatedData->encapContentInfo->eContent;
227 :
228 : case NID_id_smime_ct_compressedData:
229 0 : return &cms->d.compressedData->encapContentInfo->eContent;
230 :
231 : default:
232 0 : if (cms->d.other->type == V_ASN1_OCTET_STRING)
233 0 : return &cms->d.other->value.octet_string;
234 0 : CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
235 0 : return NULL;
236 :
237 : }
238 : }
239 :
240 : /*
241 : * Return an ASN1_OBJECT pointer to content type. This allows it to be
242 : * accessed or set later.
243 : */
244 :
245 0 : static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
246 : {
247 0 : switch (OBJ_obj2nid(cms->contentType)) {
248 :
249 : case NID_pkcs7_signed:
250 0 : return &cms->d.signedData->encapContentInfo->eContentType;
251 :
252 : case NID_pkcs7_enveloped:
253 0 : return &cms->d.envelopedData->encryptedContentInfo->contentType;
254 :
255 : case NID_pkcs7_digest:
256 0 : return &cms->d.digestedData->encapContentInfo->eContentType;
257 :
258 : case NID_pkcs7_encrypted:
259 0 : return &cms->d.encryptedData->encryptedContentInfo->contentType;
260 :
261 : case NID_id_smime_ct_authData:
262 0 : return &cms->d.authenticatedData->encapContentInfo->eContentType;
263 :
264 : case NID_id_smime_ct_compressedData:
265 0 : return &cms->d.compressedData->encapContentInfo->eContentType;
266 :
267 : default:
268 0 : CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE, CMS_R_UNSUPPORTED_CONTENT_TYPE);
269 0 : return NULL;
270 :
271 : }
272 : }
273 :
274 0 : const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
275 : {
276 : ASN1_OBJECT **petype;
277 0 : petype = cms_get0_econtent_type(cms);
278 0 : if (petype)
279 0 : return *petype;
280 : return NULL;
281 : }
282 :
283 0 : int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
284 : {
285 : ASN1_OBJECT **petype, *etype;
286 0 : petype = cms_get0_econtent_type(cms);
287 0 : if (!petype)
288 : return 0;
289 0 : if (!oid)
290 : return 1;
291 0 : etype = OBJ_dup(oid);
292 0 : if (!etype)
293 : return 0;
294 0 : ASN1_OBJECT_free(*petype);
295 0 : *petype = etype;
296 0 : return 1;
297 : }
298 :
299 0 : int CMS_is_detached(CMS_ContentInfo *cms)
300 : {
301 : ASN1_OCTET_STRING **pos;
302 0 : pos = CMS_get0_content(cms);
303 0 : if (!pos)
304 : return -1;
305 0 : if (*pos)
306 : return 0;
307 0 : return 1;
308 : }
309 :
310 0 : int CMS_set_detached(CMS_ContentInfo *cms, int detached)
311 : {
312 : ASN1_OCTET_STRING **pos;
313 0 : pos = CMS_get0_content(cms);
314 0 : if (!pos)
315 : return 0;
316 0 : if (detached) {
317 0 : if (*pos) {
318 0 : ASN1_OCTET_STRING_free(*pos);
319 0 : *pos = NULL;
320 : }
321 : return 1;
322 : }
323 0 : if (!*pos)
324 0 : *pos = ASN1_OCTET_STRING_new();
325 0 : if (*pos) {
326 : /*
327 : * NB: special flag to show content is created and not read in.
328 : */
329 0 : (*pos)->flags |= ASN1_STRING_FLAG_CONT;
330 0 : return 1;
331 : }
332 0 : CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
333 0 : return 0;
334 : }
335 :
336 : /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
337 :
338 0 : void cms_DigestAlgorithm_set(X509_ALGOR *alg, const EVP_MD *md)
339 : {
340 : int param_type;
341 :
342 0 : if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
343 : param_type = V_ASN1_UNDEF;
344 : else
345 : param_type = V_ASN1_NULL;
346 :
347 0 : X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
348 :
349 0 : }
350 :
351 : /* Create a digest BIO from an X509_ALGOR structure */
352 :
353 0 : BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
354 : {
355 : BIO *mdbio = NULL;
356 : ASN1_OBJECT *digestoid;
357 : const EVP_MD *digest;
358 0 : X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
359 0 : digest = EVP_get_digestbyobj(digestoid);
360 0 : if (!digest) {
361 0 : CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
362 : CMS_R_UNKNOWN_DIGEST_ALGORIHM);
363 0 : goto err;
364 : }
365 0 : mdbio = BIO_new(BIO_f_md());
366 0 : if (!mdbio || !BIO_set_md(mdbio, digest)) {
367 0 : CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, CMS_R_MD_BIO_INIT_ERROR);
368 0 : goto err;
369 : }
370 : return mdbio;
371 : err:
372 0 : if (mdbio)
373 0 : BIO_free(mdbio);
374 : return NULL;
375 : }
376 :
377 : /* Locate a message digest content from a BIO chain based on SignerInfo */
378 :
379 0 : int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
380 : X509_ALGOR *mdalg)
381 : {
382 : int nid;
383 : ASN1_OBJECT *mdoid;
384 0 : X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
385 0 : nid = OBJ_obj2nid(mdoid);
386 : /* Look for digest type to match signature */
387 : for (;;) {
388 : EVP_MD_CTX *mtmp;
389 0 : chain = BIO_find_type(chain, BIO_TYPE_MD);
390 0 : if (chain == NULL) {
391 0 : CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
392 : CMS_R_NO_MATCHING_DIGEST);
393 0 : return 0;
394 : }
395 0 : BIO_get_md_ctx(chain, &mtmp);
396 0 : if (EVP_MD_CTX_type(mtmp) == nid
397 : /*
398 : * Workaround for broken implementations that use signature
399 : * algorithm OID instead of digest.
400 : */
401 0 : || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)
402 0 : return EVP_MD_CTX_copy_ex(mctx, mtmp);
403 0 : chain = BIO_next(chain);
404 0 : }
405 : }
406 :
407 : static STACK_OF(CMS_CertificateChoices)
408 0 : **cms_get0_certificate_choices(CMS_ContentInfo *cms)
409 : {
410 0 : switch (OBJ_obj2nid(cms->contentType)) {
411 :
412 : case NID_pkcs7_signed:
413 0 : return &cms->d.signedData->certificates;
414 :
415 : case NID_pkcs7_enveloped:
416 0 : return &cms->d.envelopedData->originatorInfo->certificates;
417 :
418 : default:
419 0 : CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
420 : CMS_R_UNSUPPORTED_CONTENT_TYPE);
421 0 : return NULL;
422 :
423 : }
424 : }
425 :
426 0 : CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
427 : {
428 : STACK_OF(CMS_CertificateChoices) **pcerts;
429 : CMS_CertificateChoices *cch;
430 0 : pcerts = cms_get0_certificate_choices(cms);
431 0 : if (!pcerts)
432 : return NULL;
433 0 : if (!*pcerts)
434 0 : *pcerts = sk_CMS_CertificateChoices_new_null();
435 0 : if (!*pcerts)
436 : return NULL;
437 0 : cch = M_ASN1_new_of(CMS_CertificateChoices);
438 0 : if (!cch)
439 : return NULL;
440 0 : if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) {
441 0 : M_ASN1_free_of(cch, CMS_CertificateChoices);
442 0 : return NULL;
443 : }
444 : return cch;
445 : }
446 :
447 0 : int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
448 : {
449 : CMS_CertificateChoices *cch;
450 : STACK_OF(CMS_CertificateChoices) **pcerts;
451 : int i;
452 0 : pcerts = cms_get0_certificate_choices(cms);
453 0 : if (!pcerts)
454 : return 0;
455 0 : for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
456 0 : cch = sk_CMS_CertificateChoices_value(*pcerts, i);
457 0 : if (cch->type == CMS_CERTCHOICE_CERT) {
458 0 : if (!X509_cmp(cch->d.certificate, cert)) {
459 0 : CMSerr(CMS_F_CMS_ADD0_CERT,
460 : CMS_R_CERTIFICATE_ALREADY_PRESENT);
461 0 : return 0;
462 : }
463 : }
464 : }
465 0 : cch = CMS_add0_CertificateChoices(cms);
466 0 : if (!cch)
467 : return 0;
468 0 : cch->type = CMS_CERTCHOICE_CERT;
469 0 : cch->d.certificate = cert;
470 0 : return 1;
471 : }
472 :
473 0 : int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
474 : {
475 : int r;
476 0 : r = CMS_add0_cert(cms, cert);
477 0 : if (r > 0)
478 0 : CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
479 0 : return r;
480 : }
481 :
482 : static STACK_OF(CMS_RevocationInfoChoice)
483 0 : **cms_get0_revocation_choices(CMS_ContentInfo *cms)
484 : {
485 0 : switch (OBJ_obj2nid(cms->contentType)) {
486 :
487 : case NID_pkcs7_signed:
488 0 : return &cms->d.signedData->crls;
489 :
490 : case NID_pkcs7_enveloped:
491 0 : return &cms->d.envelopedData->originatorInfo->crls;
492 :
493 : default:
494 0 : CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
495 : CMS_R_UNSUPPORTED_CONTENT_TYPE);
496 0 : return NULL;
497 :
498 : }
499 : }
500 :
501 0 : CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
502 : {
503 : STACK_OF(CMS_RevocationInfoChoice) **pcrls;
504 : CMS_RevocationInfoChoice *rch;
505 0 : pcrls = cms_get0_revocation_choices(cms);
506 0 : if (!pcrls)
507 : return NULL;
508 0 : if (!*pcrls)
509 0 : *pcrls = sk_CMS_RevocationInfoChoice_new_null();
510 0 : if (!*pcrls)
511 : return NULL;
512 0 : rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
513 0 : if (!rch)
514 : return NULL;
515 0 : if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) {
516 0 : M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
517 0 : return NULL;
518 : }
519 : return rch;
520 : }
521 :
522 0 : int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
523 : {
524 : CMS_RevocationInfoChoice *rch;
525 0 : rch = CMS_add0_RevocationInfoChoice(cms);
526 0 : if (!rch)
527 : return 0;
528 0 : rch->type = CMS_REVCHOICE_CRL;
529 0 : rch->d.crl = crl;
530 0 : return 1;
531 : }
532 :
533 0 : int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl)
534 : {
535 : int r;
536 : r = CMS_add0_crl(cms, crl);
537 0 : if (r > 0)
538 0 : CRYPTO_add(&crl->references, 1, CRYPTO_LOCK_X509_CRL);
539 0 : return r;
540 : }
541 :
542 0 : STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
543 : {
544 : STACK_OF(X509) *certs = NULL;
545 : CMS_CertificateChoices *cch;
546 : STACK_OF(CMS_CertificateChoices) **pcerts;
547 : int i;
548 0 : pcerts = cms_get0_certificate_choices(cms);
549 0 : if (!pcerts)
550 : return NULL;
551 0 : for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
552 0 : cch = sk_CMS_CertificateChoices_value(*pcerts, i);
553 0 : if (cch->type == 0) {
554 0 : if (!certs) {
555 0 : certs = sk_X509_new_null();
556 0 : if (!certs)
557 : return NULL;
558 : }
559 0 : if (!sk_X509_push(certs, cch->d.certificate)) {
560 0 : sk_X509_pop_free(certs, X509_free);
561 0 : return NULL;
562 : }
563 0 : CRYPTO_add(&cch->d.certificate->references, 1, CRYPTO_LOCK_X509);
564 : }
565 : }
566 : return certs;
567 :
568 : }
569 :
570 0 : STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
571 : {
572 : STACK_OF(X509_CRL) *crls = NULL;
573 : STACK_OF(CMS_RevocationInfoChoice) **pcrls;
574 : CMS_RevocationInfoChoice *rch;
575 : int i;
576 0 : pcrls = cms_get0_revocation_choices(cms);
577 0 : if (!pcrls)
578 : return NULL;
579 0 : for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) {
580 0 : rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
581 0 : if (rch->type == 0) {
582 0 : if (!crls) {
583 0 : crls = sk_X509_CRL_new_null();
584 0 : if (!crls)
585 : return NULL;
586 : }
587 0 : if (!sk_X509_CRL_push(crls, rch->d.crl)) {
588 0 : sk_X509_CRL_pop_free(crls, X509_CRL_free);
589 0 : return NULL;
590 : }
591 0 : CRYPTO_add(&rch->d.crl->references, 1, CRYPTO_LOCK_X509_CRL);
592 : }
593 : }
594 : return crls;
595 : }
596 :
597 0 : int cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert)
598 : {
599 : int ret;
600 0 : ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert));
601 0 : if (ret)
602 : return ret;
603 0 : return ASN1_INTEGER_cmp(ias->serialNumber, X509_get_serialNumber(cert));
604 : }
605 :
606 0 : int cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert)
607 : {
608 0 : X509_check_purpose(cert, -1, -1);
609 0 : if (!cert->skid)
610 : return -1;
611 0 : return ASN1_OCTET_STRING_cmp(keyid, cert->skid);
612 : }
613 :
614 0 : int cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert)
615 : {
616 : CMS_IssuerAndSerialNumber *ias;
617 0 : ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber);
618 0 : if (!ias)
619 : goto err;
620 0 : if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert)))
621 : goto err;
622 0 : if (!ASN1_STRING_copy(ias->serialNumber, X509_get_serialNumber(cert)))
623 : goto err;
624 0 : if (*pias)
625 0 : M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber);
626 0 : *pias = ias;
627 0 : return 1;
628 : err:
629 0 : if (ias)
630 0 : M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber);
631 0 : CMSerr(CMS_F_CMS_SET1_IAS, ERR_R_MALLOC_FAILURE);
632 0 : return 0;
633 : }
634 :
635 0 : int cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert)
636 : {
637 : ASN1_OCTET_STRING *keyid = NULL;
638 0 : X509_check_purpose(cert, -1, -1);
639 0 : if (!cert->skid) {
640 0 : CMSerr(CMS_F_CMS_SET1_KEYID, CMS_R_CERTIFICATE_HAS_NO_KEYID);
641 0 : return 0;
642 : }
643 0 : keyid = ASN1_STRING_dup(cert->skid);
644 0 : if (!keyid) {
645 0 : CMSerr(CMS_F_CMS_SET1_KEYID, ERR_R_MALLOC_FAILURE);
646 0 : return 0;
647 : }
648 0 : if (*pkeyid)
649 0 : ASN1_OCTET_STRING_free(*pkeyid);
650 0 : *pkeyid = keyid;
651 0 : return 1;
652 : }
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