1 /*
2 * Copyright 2008-2022 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 "internal/sizes.h"
18 #include "crypto/x509.h"
19 #include "cms_local.h"
20
21 static STACK_OF(CMS_CertificateChoices)
22 **cms_get0_certificate_choices(CMS_ContentInfo *cms);
23
IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo)24 IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo)
25
26 CMS_ContentInfo *d2i_CMS_ContentInfo(CMS_ContentInfo **a,
27 const unsigned char **in, long len)
28 {
29 CMS_ContentInfo *ci;
30 const CMS_CTX *ctx = ossl_cms_get0_cmsctx(a == NULL ? NULL : *a);
31
32 ci = (CMS_ContentInfo *)ASN1_item_d2i_ex((ASN1_VALUE **)a, in, len,
33 (CMS_ContentInfo_it()),
34 ossl_cms_ctx_get0_libctx(ctx),
35 ossl_cms_ctx_get0_propq(ctx));
36 if (ci != NULL)
37 ossl_cms_resolve_libctx(ci);
38 return ci;
39 }
40
i2d_CMS_ContentInfo(const CMS_ContentInfo * a,unsigned char ** out)41 int i2d_CMS_ContentInfo(const CMS_ContentInfo *a, unsigned char **out)
42 {
43 return ASN1_item_i2d((const ASN1_VALUE *)a, out, (CMS_ContentInfo_it()));
44 }
45
CMS_ContentInfo_new_ex(OSSL_LIB_CTX * libctx,const char * propq)46 CMS_ContentInfo *CMS_ContentInfo_new_ex(OSSL_LIB_CTX *libctx, const char *propq)
47 {
48 CMS_ContentInfo *ci;
49
50 ci = (CMS_ContentInfo *)ASN1_item_new_ex(ASN1_ITEM_rptr(CMS_ContentInfo),
51 libctx, propq);
52 if (ci != NULL) {
53 ci->ctx.libctx = libctx;
54 ci->ctx.propq = NULL;
55 if (propq != NULL) {
56 ci->ctx.propq = OPENSSL_strdup(propq);
57 if (ci->ctx.propq == NULL) {
58 CMS_ContentInfo_free(ci);
59 ci = NULL;
60 ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
61 }
62 }
63 }
64 return ci;
65 }
66
CMS_ContentInfo_new(void)67 CMS_ContentInfo *CMS_ContentInfo_new(void)
68 {
69 return CMS_ContentInfo_new_ex(NULL, NULL);
70 }
71
CMS_ContentInfo_free(CMS_ContentInfo * cms)72 void CMS_ContentInfo_free(CMS_ContentInfo *cms)
73 {
74 if (cms != NULL) {
75 OPENSSL_free(cms->ctx.propq);
76 ASN1_item_free((ASN1_VALUE *)cms, ASN1_ITEM_rptr(CMS_ContentInfo));
77 }
78 }
79
ossl_cms_get0_cmsctx(const CMS_ContentInfo * cms)80 const CMS_CTX *ossl_cms_get0_cmsctx(const CMS_ContentInfo *cms)
81 {
82 return cms != NULL ? &cms->ctx : NULL;
83 }
84
ossl_cms_ctx_get0_libctx(const CMS_CTX * ctx)85 OSSL_LIB_CTX *ossl_cms_ctx_get0_libctx(const CMS_CTX *ctx)
86 {
87 return ctx != NULL ? ctx->libctx : NULL;
88 }
89
ossl_cms_ctx_get0_propq(const CMS_CTX * ctx)90 const char *ossl_cms_ctx_get0_propq(const CMS_CTX *ctx)
91 {
92 return ctx != NULL ? ctx->propq : NULL;
93 }
94
ossl_cms_resolve_libctx(CMS_ContentInfo * ci)95 void ossl_cms_resolve_libctx(CMS_ContentInfo *ci)
96 {
97 int i;
98 CMS_CertificateChoices *cch;
99 STACK_OF(CMS_CertificateChoices) **pcerts;
100 const CMS_CTX *ctx = ossl_cms_get0_cmsctx(ci);
101 OSSL_LIB_CTX *libctx = ossl_cms_ctx_get0_libctx(ctx);
102 const char *propq = ossl_cms_ctx_get0_propq(ctx);
103
104 ossl_cms_SignerInfos_set_cmsctx(ci);
105 ossl_cms_RecipientInfos_set_cmsctx(ci);
106
107 pcerts = cms_get0_certificate_choices(ci);
108 if (pcerts != NULL) {
109 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
110 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
111 if (cch->type == CMS_CERTCHOICE_CERT)
112 ossl_x509_set0_libctx(cch->d.certificate, libctx, propq);
113 }
114 }
115 }
116
CMS_get0_type(const CMS_ContentInfo * cms)117 const ASN1_OBJECT *CMS_get0_type(const CMS_ContentInfo *cms)
118 {
119 return cms->contentType;
120 }
121
ossl_cms_Data_create(OSSL_LIB_CTX * libctx,const char * propq)122 CMS_ContentInfo *ossl_cms_Data_create(OSSL_LIB_CTX *libctx, const char *propq)
123 {
124 CMS_ContentInfo *cms = CMS_ContentInfo_new_ex(libctx, propq);
125
126 if (cms != NULL) {
127 cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
128 /* Never detached */
129 CMS_set_detached(cms, 0);
130 }
131 return cms;
132 }
133
ossl_cms_content_bio(CMS_ContentInfo * cms)134 BIO *ossl_cms_content_bio(CMS_ContentInfo *cms)
135 {
136 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
137
138 if (pos == NULL)
139 return NULL;
140 /* If content detached data goes nowhere: create NULL BIO */
141 if (*pos == NULL)
142 return BIO_new(BIO_s_null());
143 /*
144 * If content not detached and created return memory BIO
145 */
146 if (*pos == NULL || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
147 return BIO_new(BIO_s_mem());
148 /* Else content was read in: return read only BIO for it */
149 return BIO_new_mem_buf((*pos)->data, (*pos)->length);
150 }
151
CMS_dataInit(CMS_ContentInfo * cms,BIO * icont)152 BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
153 {
154 BIO *cmsbio, *cont;
155 if (icont)
156 cont = icont;
157 else
158 cont = ossl_cms_content_bio(cms);
159 if (!cont) {
160 ERR_raise(ERR_LIB_CMS, CMS_R_NO_CONTENT);
161 return NULL;
162 }
163 switch (OBJ_obj2nid(cms->contentType)) {
164
165 case NID_pkcs7_data:
166 return cont;
167
168 case NID_pkcs7_signed:
169 cmsbio = ossl_cms_SignedData_init_bio(cms);
170 break;
171
172 case NID_pkcs7_digest:
173 cmsbio = ossl_cms_DigestedData_init_bio(cms);
174 break;
175 #ifdef ZLIB
176 case NID_id_smime_ct_compressedData:
177 cmsbio = ossl_cms_CompressedData_init_bio(cms);
178 break;
179 #endif
180
181 case NID_pkcs7_encrypted:
182 cmsbio = ossl_cms_EncryptedData_init_bio(cms);
183 break;
184
185 case NID_pkcs7_enveloped:
186 cmsbio = ossl_cms_EnvelopedData_init_bio(cms);
187 break;
188
189 case NID_id_smime_ct_authEnvelopedData:
190 cmsbio = ossl_cms_AuthEnvelopedData_init_bio(cms);
191 break;
192
193 default:
194 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_TYPE);
195 goto err;
196 }
197
198 if (cmsbio)
199 return BIO_push(cmsbio, cont);
200 err:
201 if (!icont)
202 BIO_free(cont);
203 return NULL;
204
205 }
206
207 /* unfortunately cannot constify SMIME_write_ASN1() due to this function */
CMS_dataFinal(CMS_ContentInfo * cms,BIO * cmsbio)208 int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
209 {
210 return ossl_cms_DataFinal(cms, cmsbio, NULL, 0);
211 }
212
ossl_cms_DataFinal(CMS_ContentInfo * cms,BIO * cmsbio,const unsigned char * precomp_md,unsigned int precomp_mdlen)213 int ossl_cms_DataFinal(CMS_ContentInfo *cms, BIO *cmsbio,
214 const unsigned char *precomp_md,
215 unsigned int precomp_mdlen)
216 {
217 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
218
219 if (pos == NULL)
220 return 0;
221 /* If embedded content find memory BIO and set content */
222 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) {
223 BIO *mbio;
224 unsigned char *cont;
225 long contlen;
226 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
227 if (!mbio) {
228 ERR_raise(ERR_LIB_CMS, CMS_R_CONTENT_NOT_FOUND);
229 return 0;
230 }
231 contlen = BIO_get_mem_data(mbio, &cont);
232 /* Set bio as read only so its content can't be clobbered */
233 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
234 BIO_set_mem_eof_return(mbio, 0);
235 ASN1_STRING_set0(*pos, cont, contlen);
236 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
237 }
238
239 switch (OBJ_obj2nid(cms->contentType)) {
240
241 case NID_pkcs7_data:
242 case NID_pkcs7_encrypted:
243 case NID_id_smime_ct_compressedData:
244 /* Nothing to do */
245 return 1;
246
247 case NID_pkcs7_enveloped:
248 return ossl_cms_EnvelopedData_final(cms, cmsbio);
249
250 case NID_id_smime_ct_authEnvelopedData:
251 return ossl_cms_AuthEnvelopedData_final(cms, cmsbio);
252
253 case NID_pkcs7_signed:
254 return ossl_cms_SignedData_final(cms, cmsbio, precomp_md, precomp_mdlen);
255
256 case NID_pkcs7_digest:
257 return ossl_cms_DigestedData_do_final(cms, cmsbio, 0);
258
259 default:
260 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_TYPE);
261 return 0;
262 }
263 }
264
265 /*
266 * Return an OCTET STRING pointer to content. This allows it to be accessed
267 * or set later.
268 */
269
CMS_get0_content(CMS_ContentInfo * cms)270 ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
271 {
272 switch (OBJ_obj2nid(cms->contentType)) {
273
274 case NID_pkcs7_data:
275 return &cms->d.data;
276
277 case NID_pkcs7_signed:
278 return &cms->d.signedData->encapContentInfo->eContent;
279
280 case NID_pkcs7_enveloped:
281 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
282
283 case NID_pkcs7_digest:
284 return &cms->d.digestedData->encapContentInfo->eContent;
285
286 case NID_pkcs7_encrypted:
287 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
288
289 case NID_id_smime_ct_authEnvelopedData:
290 return &cms->d.authEnvelopedData->authEncryptedContentInfo
291 ->encryptedContent;
292
293 case NID_id_smime_ct_authData:
294 return &cms->d.authenticatedData->encapContentInfo->eContent;
295
296 case NID_id_smime_ct_compressedData:
297 return &cms->d.compressedData->encapContentInfo->eContent;
298
299 default:
300 if (cms->d.other->type == V_ASN1_OCTET_STRING)
301 return &cms->d.other->value.octet_string;
302 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE);
303 return NULL;
304
305 }
306 }
307
308 /*
309 * Return an ASN1_OBJECT pointer to content type. This allows it to be
310 * accessed or set later.
311 */
312
cms_get0_econtent_type(CMS_ContentInfo * cms)313 static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
314 {
315 switch (OBJ_obj2nid(cms->contentType)) {
316
317 case NID_pkcs7_signed:
318 return &cms->d.signedData->encapContentInfo->eContentType;
319
320 case NID_pkcs7_enveloped:
321 return &cms->d.envelopedData->encryptedContentInfo->contentType;
322
323 case NID_pkcs7_digest:
324 return &cms->d.digestedData->encapContentInfo->eContentType;
325
326 case NID_pkcs7_encrypted:
327 return &cms->d.encryptedData->encryptedContentInfo->contentType;
328
329 case NID_id_smime_ct_authEnvelopedData:
330 return &cms->d.authEnvelopedData->authEncryptedContentInfo
331 ->contentType;
332 case NID_id_smime_ct_authData:
333 return &cms->d.authenticatedData->encapContentInfo->eContentType;
334
335 case NID_id_smime_ct_compressedData:
336 return &cms->d.compressedData->encapContentInfo->eContentType;
337
338 default:
339 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE);
340 return NULL;
341
342 }
343 }
344
CMS_get0_eContentType(CMS_ContentInfo * cms)345 const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
346 {
347 ASN1_OBJECT **petype;
348 petype = cms_get0_econtent_type(cms);
349 if (petype)
350 return *petype;
351 return NULL;
352 }
353
CMS_set1_eContentType(CMS_ContentInfo * cms,const ASN1_OBJECT * oid)354 int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
355 {
356 ASN1_OBJECT **petype, *etype;
357
358 petype = cms_get0_econtent_type(cms);
359 if (petype == NULL)
360 return 0;
361 if (oid == NULL)
362 return 1;
363 etype = OBJ_dup(oid);
364 if (etype == NULL)
365 return 0;
366 ASN1_OBJECT_free(*petype);
367 *petype = etype;
368 return 1;
369 }
370
CMS_is_detached(CMS_ContentInfo * cms)371 int CMS_is_detached(CMS_ContentInfo *cms)
372 {
373 ASN1_OCTET_STRING **pos;
374
375 pos = CMS_get0_content(cms);
376 if (pos == NULL)
377 return -1;
378 if (*pos != NULL)
379 return 0;
380 return 1;
381 }
382
CMS_set_detached(CMS_ContentInfo * cms,int detached)383 int CMS_set_detached(CMS_ContentInfo *cms, int detached)
384 {
385 ASN1_OCTET_STRING **pos;
386
387 pos = CMS_get0_content(cms);
388 if (pos == NULL)
389 return 0;
390 if (detached) {
391 ASN1_OCTET_STRING_free(*pos);
392 *pos = NULL;
393 return 1;
394 }
395 if (*pos == NULL)
396 *pos = ASN1_OCTET_STRING_new();
397 if (*pos != NULL) {
398 /*
399 * NB: special flag to show content is created and not read in.
400 */
401 (*pos)->flags |= ASN1_STRING_FLAG_CONT;
402 return 1;
403 }
404 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
405 return 0;
406 }
407
408 /* Create a digest BIO from an X509_ALGOR structure */
409
ossl_cms_DigestAlgorithm_init_bio(X509_ALGOR * digestAlgorithm,const CMS_CTX * ctx)410 BIO *ossl_cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm,
411 const CMS_CTX *ctx)
412 {
413 BIO *mdbio = NULL;
414 const ASN1_OBJECT *digestoid;
415 const EVP_MD *digest = NULL;
416 EVP_MD *fetched_digest = NULL;
417 char alg[OSSL_MAX_NAME_SIZE];
418
419 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
420 OBJ_obj2txt(alg, sizeof(alg), digestoid, 0);
421
422 (void)ERR_set_mark();
423 fetched_digest = EVP_MD_fetch(ossl_cms_ctx_get0_libctx(ctx), alg,
424 ossl_cms_ctx_get0_propq(ctx));
425
426 if (fetched_digest != NULL)
427 digest = fetched_digest;
428 else
429 digest = EVP_get_digestbyobj(digestoid);
430 if (digest == NULL) {
431 (void)ERR_clear_last_mark();
432 ERR_raise(ERR_LIB_CMS, CMS_R_UNKNOWN_DIGEST_ALGORITHM);
433 goto err;
434 }
435 (void)ERR_pop_to_mark();
436
437 mdbio = BIO_new(BIO_f_md());
438 if (mdbio == NULL || !BIO_set_md(mdbio, digest)) {
439 ERR_raise(ERR_LIB_CMS, CMS_R_MD_BIO_INIT_ERROR);
440 goto err;
441 }
442 EVP_MD_free(fetched_digest);
443 return mdbio;
444 err:
445 EVP_MD_free(fetched_digest);
446 BIO_free(mdbio);
447 return NULL;
448 }
449
450 /* Locate a message digest content from a BIO chain based on SignerInfo */
451
ossl_cms_DigestAlgorithm_find_ctx(EVP_MD_CTX * mctx,BIO * chain,X509_ALGOR * mdalg)452 int ossl_cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
453 X509_ALGOR *mdalg)
454 {
455 int nid;
456 const ASN1_OBJECT *mdoid;
457 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
458 nid = OBJ_obj2nid(mdoid);
459 /* Look for digest type to match signature */
460 for (;;) {
461 EVP_MD_CTX *mtmp;
462 chain = BIO_find_type(chain, BIO_TYPE_MD);
463 if (chain == NULL) {
464 ERR_raise(ERR_LIB_CMS, CMS_R_NO_MATCHING_DIGEST);
465 return 0;
466 }
467 BIO_get_md_ctx(chain, &mtmp);
468 if (EVP_MD_CTX_get_type(mtmp) == nid
469 /*
470 * Workaround for broken implementations that use signature
471 * algorithm OID instead of digest.
472 */
473 || EVP_MD_get_pkey_type(EVP_MD_CTX_get0_md(mtmp)) == nid)
474 return EVP_MD_CTX_copy_ex(mctx, mtmp);
475 chain = BIO_next(chain);
476 }
477 }
478
STACK_OF(CMS_CertificateChoices)479 static STACK_OF(CMS_CertificateChoices)
480 **cms_get0_certificate_choices(CMS_ContentInfo *cms)
481 {
482 switch (OBJ_obj2nid(cms->contentType)) {
483
484 case NID_pkcs7_signed:
485 return &cms->d.signedData->certificates;
486
487 case NID_pkcs7_enveloped:
488 if (cms->d.envelopedData->originatorInfo == NULL)
489 return NULL;
490 return &cms->d.envelopedData->originatorInfo->certificates;
491
492 case NID_id_smime_ct_authEnvelopedData:
493 if (cms->d.authEnvelopedData->originatorInfo == NULL)
494 return NULL;
495 return &cms->d.authEnvelopedData->originatorInfo->certificates;
496
497 default:
498 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE);
499 return NULL;
500
501 }
502 }
503
CMS_add0_CertificateChoices(CMS_ContentInfo * cms)504 CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
505 {
506 STACK_OF(CMS_CertificateChoices) **pcerts;
507 CMS_CertificateChoices *cch;
508
509 pcerts = cms_get0_certificate_choices(cms);
510 if (pcerts == NULL)
511 return NULL;
512 if (*pcerts == NULL)
513 *pcerts = sk_CMS_CertificateChoices_new_null();
514 if (*pcerts == NULL)
515 return NULL;
516 cch = M_ASN1_new_of(CMS_CertificateChoices);
517 if (!cch)
518 return NULL;
519 if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) {
520 M_ASN1_free_of(cch, CMS_CertificateChoices);
521 return NULL;
522 }
523 return cch;
524 }
525
CMS_add0_cert(CMS_ContentInfo * cms,X509 * cert)526 int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
527 {
528 CMS_CertificateChoices *cch;
529 STACK_OF(CMS_CertificateChoices) **pcerts;
530 int i;
531
532 pcerts = cms_get0_certificate_choices(cms);
533 if (pcerts == NULL)
534 return 0;
535 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
536 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
537 if (cch->type == CMS_CERTCHOICE_CERT) {
538 if (!X509_cmp(cch->d.certificate, cert)) {
539 ERR_raise(ERR_LIB_CMS, CMS_R_CERTIFICATE_ALREADY_PRESENT);
540 return 0;
541 }
542 }
543 }
544 cch = CMS_add0_CertificateChoices(cms);
545 if (!cch)
546 return 0;
547 cch->type = CMS_CERTCHOICE_CERT;
548 cch->d.certificate = cert;
549 return 1;
550 }
551
CMS_add1_cert(CMS_ContentInfo * cms,X509 * cert)552 int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
553 {
554 int r;
555 r = CMS_add0_cert(cms, cert);
556 if (r > 0)
557 X509_up_ref(cert);
558 return r;
559 }
560
STACK_OF(CMS_RevocationInfoChoice)561 static STACK_OF(CMS_RevocationInfoChoice)
562 **cms_get0_revocation_choices(CMS_ContentInfo *cms)
563 {
564 switch (OBJ_obj2nid(cms->contentType)) {
565
566 case NID_pkcs7_signed:
567 return &cms->d.signedData->crls;
568
569 case NID_pkcs7_enveloped:
570 if (cms->d.envelopedData->originatorInfo == NULL)
571 return NULL;
572 return &cms->d.envelopedData->originatorInfo->crls;
573
574 case NID_id_smime_ct_authEnvelopedData:
575 if (cms->d.authEnvelopedData->originatorInfo == NULL)
576 return NULL;
577 return &cms->d.authEnvelopedData->originatorInfo->crls;
578
579 default:
580 ERR_raise(ERR_LIB_CMS, CMS_R_UNSUPPORTED_CONTENT_TYPE);
581 return NULL;
582
583 }
584 }
585
CMS_add0_RevocationInfoChoice(CMS_ContentInfo * cms)586 CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
587 {
588 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
589 CMS_RevocationInfoChoice *rch;
590
591 pcrls = cms_get0_revocation_choices(cms);
592 if (pcrls == NULL)
593 return NULL;
594 if (*pcrls == NULL)
595 *pcrls = sk_CMS_RevocationInfoChoice_new_null();
596 if (*pcrls == NULL)
597 return NULL;
598 rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
599 if (rch == NULL)
600 return NULL;
601 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) {
602 M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
603 return NULL;
604 }
605 return rch;
606 }
607
CMS_add0_crl(CMS_ContentInfo * cms,X509_CRL * crl)608 int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
609 {
610 CMS_RevocationInfoChoice *rch;
611 rch = CMS_add0_RevocationInfoChoice(cms);
612 if (!rch)
613 return 0;
614 rch->type = CMS_REVCHOICE_CRL;
615 rch->d.crl = crl;
616 return 1;
617 }
618
CMS_add1_crl(CMS_ContentInfo * cms,X509_CRL * crl)619 int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl)
620 {
621 int r;
622 r = CMS_add0_crl(cms, crl);
623 if (r > 0)
624 X509_CRL_up_ref(crl);
625 return r;
626 }
627
STACK_OF(X509)628 STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
629 {
630 STACK_OF(X509) *certs = NULL;
631 CMS_CertificateChoices *cch;
632 STACK_OF(CMS_CertificateChoices) **pcerts;
633 int i;
634
635 pcerts = cms_get0_certificate_choices(cms);
636 if (pcerts == NULL)
637 return NULL;
638 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
639 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
640 if (cch->type == 0) {
641 if (!ossl_x509_add_cert_new(&certs, cch->d.certificate,
642 X509_ADD_FLAG_UP_REF)) {
643 OSSL_STACK_OF_X509_free(certs);
644 return NULL;
645 }
646 }
647 }
648 return certs;
649
650 }
651
STACK_OF(X509_CRL)652 STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
653 {
654 STACK_OF(X509_CRL) *crls = NULL;
655 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
656 CMS_RevocationInfoChoice *rch;
657 int i;
658
659 pcrls = cms_get0_revocation_choices(cms);
660 if (pcrls == NULL)
661 return NULL;
662 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) {
663 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
664 if (rch->type == 0) {
665 if (!crls) {
666 crls = sk_X509_CRL_new_null();
667 if (!crls)
668 return NULL;
669 }
670 if (!sk_X509_CRL_push(crls, rch->d.crl)) {
671 sk_X509_CRL_pop_free(crls, X509_CRL_free);
672 return NULL;
673 }
674 X509_CRL_up_ref(rch->d.crl);
675 }
676 }
677 return crls;
678 }
679
ossl_cms_ias_cert_cmp(CMS_IssuerAndSerialNumber * ias,X509 * cert)680 int ossl_cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert)
681 {
682 int ret;
683 ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert));
684 if (ret)
685 return ret;
686 return ASN1_INTEGER_cmp(ias->serialNumber, X509_get0_serialNumber(cert));
687 }
688
ossl_cms_keyid_cert_cmp(ASN1_OCTET_STRING * keyid,X509 * cert)689 int ossl_cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert)
690 {
691 const ASN1_OCTET_STRING *cert_keyid = X509_get0_subject_key_id(cert);
692
693 if (cert_keyid == NULL)
694 return -1;
695 return ASN1_OCTET_STRING_cmp(keyid, cert_keyid);
696 }
697
ossl_cms_set1_ias(CMS_IssuerAndSerialNumber ** pias,X509 * cert)698 int ossl_cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert)
699 {
700 CMS_IssuerAndSerialNumber *ias;
701 ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber);
702 if (!ias)
703 goto err;
704 if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert)))
705 goto err;
706 if (!ASN1_STRING_copy(ias->serialNumber, X509_get0_serialNumber(cert)))
707 goto err;
708 M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber);
709 *pias = ias;
710 return 1;
711 err:
712 M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber);
713 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
714 return 0;
715 }
716
ossl_cms_set1_keyid(ASN1_OCTET_STRING ** pkeyid,X509 * cert)717 int ossl_cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert)
718 {
719 ASN1_OCTET_STRING *keyid = NULL;
720 const ASN1_OCTET_STRING *cert_keyid;
721 cert_keyid = X509_get0_subject_key_id(cert);
722 if (cert_keyid == NULL) {
723 ERR_raise(ERR_LIB_CMS, CMS_R_CERTIFICATE_HAS_NO_KEYID);
724 return 0;
725 }
726 keyid = ASN1_STRING_dup(cert_keyid);
727 if (!keyid) {
728 ERR_raise(ERR_LIB_CMS, ERR_R_MALLOC_FAILURE);
729 return 0;
730 }
731 ASN1_OCTET_STRING_free(*pkeyid);
732 *pkeyid = keyid;
733 return 1;
734 }
735
