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source: vbox/trunk/src/libs/openssl-1.1.1j/crypto/cms/cms_lib.c@ 88679

Last change on this file since 88679 was 87984, checked in by vboxsync, 4 years ago

openssl-1.1.1j: Applied and adjusted our OpenSSL changes to 1.1.1j. bugref:9963
File size: 15.5 KB
Line 
1/*
2 * Copyright 2008-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 "cms_local.h"
18
19IMPLEMENT_ASN1_FUNCTIONS(CMS_ContentInfo)
20IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo)
21
22const ASN1_OBJECT *CMS_get0_type(const CMS_ContentInfo *cms)
23{
24 return cms->contentType;
25}
26
27CMS_ContentInfo *cms_Data_create(void)
28{
29 CMS_ContentInfo *cms;
30 cms = CMS_ContentInfo_new();
31 if (cms != NULL) {
32 cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
33 /* Never detached */
34 CMS_set_detached(cms, 0);
35 }
36 return cms;
37}
38
39BIO *cms_content_bio(CMS_ContentInfo *cms)
40{
41 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
42 if (!pos)
43 return NULL;
44 /* If content detached data goes nowhere: create NULL BIO */
45 if (!*pos)
46 return BIO_new(BIO_s_null());
47 /*
48 * If content not detached and created return memory BIO
49 */
50 if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
51 return BIO_new(BIO_s_mem());
52 /* Else content was read in: return read only BIO for it */
53 return BIO_new_mem_buf((*pos)->data, (*pos)->length);
54}
55
56BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
57{
58 BIO *cmsbio, *cont;
59 if (icont)
60 cont = icont;
61 else
62 cont = cms_content_bio(cms);
63 if (!cont) {
64 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT);
65 return NULL;
66 }
67 switch (OBJ_obj2nid(cms->contentType)) {
68
69 case NID_pkcs7_data:
70 return cont;
71
72 case NID_pkcs7_signed:
73 cmsbio = cms_SignedData_init_bio(cms);
74 break;
75
76 case NID_pkcs7_digest:
77 cmsbio = cms_DigestedData_init_bio(cms);
78 break;
79#ifdef ZLIB
80 case NID_id_smime_ct_compressedData:
81 cmsbio = cms_CompressedData_init_bio(cms);
82 break;
83#endif
84
85 case NID_pkcs7_encrypted:
86 cmsbio = cms_EncryptedData_init_bio(cms);
87 break;
88
89 case NID_pkcs7_enveloped:
90 cmsbio = cms_EnvelopedData_init_bio(cms);
91 break;
92
93 default:
94 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE);
95 goto err;
96 }
97
98 if (cmsbio)
99 return BIO_push(cmsbio, cont);
100
101err:
102 if (!icont)
103 BIO_free(cont);
104 return NULL;
105
106}
107
108int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
109{
110 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
111 if (!pos)
112 return 0;
113 /* If embedded content find memory BIO and set content */
114 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) {
115 BIO *mbio;
116 unsigned char *cont;
117 long contlen;
118 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
119 if (!mbio) {
120 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
121 return 0;
122 }
123 contlen = BIO_get_mem_data(mbio, &cont);
124 /* Set bio as read only so its content can't be clobbered */
125 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
126 BIO_set_mem_eof_return(mbio, 0);
127 ASN1_STRING_set0(*pos, cont, contlen);
128 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
129 }
130
131 switch (OBJ_obj2nid(cms->contentType)) {
132
133 case NID_pkcs7_data:
134 case NID_pkcs7_enveloped:
135 case NID_pkcs7_encrypted:
136 case NID_id_smime_ct_compressedData:
137 /* Nothing to do */
138 return 1;
139
140 case NID_pkcs7_signed:
141 return cms_SignedData_final(cms, cmsbio);
142
143 case NID_pkcs7_digest:
144 return cms_DigestedData_do_final(cms, cmsbio, 0);
145
146 default:
147 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
148 return 0;
149 }
150}
151
152/*
153 * Return an OCTET STRING pointer to content. This allows it to be accessed
154 * or set later.
155 */
156
157ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
158{
159 switch (OBJ_obj2nid(cms->contentType)) {
160
161 case NID_pkcs7_data:
162 return &cms->d.data;
163
164 case NID_pkcs7_signed:
165 return &cms->d.signedData->encapContentInfo->eContent;
166
167 case NID_pkcs7_enveloped:
168 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
169
170 case NID_pkcs7_digest:
171 return &cms->d.digestedData->encapContentInfo->eContent;
172
173 case NID_pkcs7_encrypted:
174 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
175
176 case NID_id_smime_ct_authData:
177 return &cms->d.authenticatedData->encapContentInfo->eContent;
178
179 case NID_id_smime_ct_compressedData:
180 return &cms->d.compressedData->encapContentInfo->eContent;
181
182 default:
183 if (cms->d.other->type == V_ASN1_OCTET_STRING)
184 return &cms->d.other->value.octet_string;
185 CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
186 return NULL;
187
188 }
189}
190
191/*
192 * Return an ASN1_OBJECT pointer to content type. This allows it to be
193 * accessed or set later.
194 */
195
196static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
197{
198 switch (OBJ_obj2nid(cms->contentType)) {
199
200 case NID_pkcs7_signed:
201 return &cms->d.signedData->encapContentInfo->eContentType;
202
203 case NID_pkcs7_enveloped:
204 return &cms->d.envelopedData->encryptedContentInfo->contentType;
205
206 case NID_pkcs7_digest:
207 return &cms->d.digestedData->encapContentInfo->eContentType;
208
209 case NID_pkcs7_encrypted:
210 return &cms->d.encryptedData->encryptedContentInfo->contentType;
211
212 case NID_id_smime_ct_authData:
213 return &cms->d.authenticatedData->encapContentInfo->eContentType;
214
215 case NID_id_smime_ct_compressedData:
216 return &cms->d.compressedData->encapContentInfo->eContentType;
217
218 default:
219 CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE, CMS_R_UNSUPPORTED_CONTENT_TYPE);
220 return NULL;
221
222 }
223}
224
225const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
226{
227 ASN1_OBJECT **petype;
228 petype = cms_get0_econtent_type(cms);
229 if (petype)
230 return *petype;
231 return NULL;
232}
233
234int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
235{
236 ASN1_OBJECT **petype, *etype;
237 petype = cms_get0_econtent_type(cms);
238 if (!petype)
239 return 0;
240 if (!oid)
241 return 1;
242 etype = OBJ_dup(oid);
243 if (!etype)
244 return 0;
245 ASN1_OBJECT_free(*petype);
246 *petype = etype;
247 return 1;
248}
249
250int CMS_is_detached(CMS_ContentInfo *cms)
251{
252 ASN1_OCTET_STRING **pos;
253 pos = CMS_get0_content(cms);
254 if (!pos)
255 return -1;
256 if (*pos)
257 return 0;
258 return 1;
259}
260
261int CMS_set_detached(CMS_ContentInfo *cms, int detached)
262{
263 ASN1_OCTET_STRING **pos;
264 pos = CMS_get0_content(cms);
265 if (!pos)
266 return 0;
267 if (detached) {
268 ASN1_OCTET_STRING_free(*pos);
269 *pos = NULL;
270 return 1;
271 }
272 if (*pos == NULL)
273 *pos = ASN1_OCTET_STRING_new();
274 if (*pos != NULL) {
275 /*
276 * NB: special flag to show content is created and not read in.
277 */
278 (*pos)->flags |= ASN1_STRING_FLAG_CONT;
279 return 1;
280 }
281 CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
282 return 0;
283}
284
285/* Create a digest BIO from an X509_ALGOR structure */
286
287BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
288{
289 BIO *mdbio = NULL;
290 const ASN1_OBJECT *digestoid;
291 const EVP_MD *digest;
292 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
293 digest = EVP_get_digestbyobj(digestoid);
294 if (!digest) {
295 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
296 CMS_R_UNKNOWN_DIGEST_ALGORITHM);
297 goto err;
298 }
299 mdbio = BIO_new(BIO_f_md());
300 if (mdbio == NULL || !BIO_set_md(mdbio, digest)) {
301 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, CMS_R_MD_BIO_INIT_ERROR);
302 goto err;
303 }
304 return mdbio;
305 err:
306 BIO_free(mdbio);
307 return NULL;
308}
309
310/* Locate a message digest content from a BIO chain based on SignerInfo */
311
312int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
313 X509_ALGOR *mdalg)
314{
315 int nid;
316 const ASN1_OBJECT *mdoid;
317 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
318 nid = OBJ_obj2nid(mdoid);
319 /* Look for digest type to match signature */
320 for (;;) {
321 EVP_MD_CTX *mtmp;
322 chain = BIO_find_type(chain, BIO_TYPE_MD);
323 if (chain == NULL) {
324 CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
325 CMS_R_NO_MATCHING_DIGEST);
326 return 0;
327 }
328 BIO_get_md_ctx(chain, &mtmp);
329 if (EVP_MD_CTX_type(mtmp) == nid
330 /*
331 * Workaround for broken implementations that use signature
332 * algorithm OID instead of digest.
333 */
334 || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)
335 return EVP_MD_CTX_copy_ex(mctx, mtmp);
336 chain = BIO_next(chain);
337 }
338}
339
340static STACK_OF(CMS_CertificateChoices)
341**cms_get0_certificate_choices(CMS_ContentInfo *cms)
342{
343 switch (OBJ_obj2nid(cms->contentType)) {
344
345 case NID_pkcs7_signed:
346 return &cms->d.signedData->certificates;
347
348 case NID_pkcs7_enveloped:
349 if (cms->d.envelopedData->originatorInfo == NULL)
350 return NULL;
351 return &cms->d.envelopedData->originatorInfo->certificates;
352
353 default:
354 CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
355 CMS_R_UNSUPPORTED_CONTENT_TYPE);
356 return NULL;
357
358 }
359}
360
361CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
362{
363 STACK_OF(CMS_CertificateChoices) **pcerts;
364 CMS_CertificateChoices *cch;
365 pcerts = cms_get0_certificate_choices(cms);
366 if (!pcerts)
367 return NULL;
368 if (!*pcerts)
369 *pcerts = sk_CMS_CertificateChoices_new_null();
370 if (!*pcerts)
371 return NULL;
372 cch = M_ASN1_new_of(CMS_CertificateChoices);
373 if (!cch)
374 return NULL;
375 if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) {
376 M_ASN1_free_of(cch, CMS_CertificateChoices);
377 return NULL;
378 }
379 return cch;
380}
381
382int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
383{
384 CMS_CertificateChoices *cch;
385 STACK_OF(CMS_CertificateChoices) **pcerts;
386 int i;
387 pcerts = cms_get0_certificate_choices(cms);
388 if (!pcerts)
389 return 0;
390 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
391 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
392 if (cch->type == CMS_CERTCHOICE_CERT) {
393 if (!X509_cmp(cch->d.certificate, cert)) {
394 CMSerr(CMS_F_CMS_ADD0_CERT,
395 CMS_R_CERTIFICATE_ALREADY_PRESENT);
396 return 0;
397 }
398 }
399 }
400 cch = CMS_add0_CertificateChoices(cms);
401 if (!cch)
402 return 0;
403 cch->type = CMS_CERTCHOICE_CERT;
404 cch->d.certificate = cert;
405 return 1;
406}
407
408int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
409{
410 int r;
411 r = CMS_add0_cert(cms, cert);
412 if (r > 0)
413 X509_up_ref(cert);
414 return r;
415}
416
417static STACK_OF(CMS_RevocationInfoChoice)
418**cms_get0_revocation_choices(CMS_ContentInfo *cms)
419{
420 switch (OBJ_obj2nid(cms->contentType)) {
421
422 case NID_pkcs7_signed:
423 return &cms->d.signedData->crls;
424
425 case NID_pkcs7_enveloped:
426 if (cms->d.envelopedData->originatorInfo == NULL)
427 return NULL;
428 return &cms->d.envelopedData->originatorInfo->crls;
429
430 default:
431 CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
432 CMS_R_UNSUPPORTED_CONTENT_TYPE);
433 return NULL;
434
435 }
436}
437
438CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
439{
440 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
441 CMS_RevocationInfoChoice *rch;
442 pcrls = cms_get0_revocation_choices(cms);
443 if (!pcrls)
444 return NULL;
445 if (!*pcrls)
446 *pcrls = sk_CMS_RevocationInfoChoice_new_null();
447 if (!*pcrls)
448 return NULL;
449 rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
450 if (!rch)
451 return NULL;
452 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) {
453 M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
454 return NULL;
455 }
456 return rch;
457}
458
459int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
460{
461 CMS_RevocationInfoChoice *rch;
462 rch = CMS_add0_RevocationInfoChoice(cms);
463 if (!rch)
464 return 0;
465 rch->type = CMS_REVCHOICE_CRL;
466 rch->d.crl = crl;
467 return 1;
468}
469
470int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl)
471{
472 int r;
473 r = CMS_add0_crl(cms, crl);
474 if (r > 0)
475 X509_CRL_up_ref(crl);
476 return r;
477}
478
479STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
480{
481 STACK_OF(X509) *certs = NULL;
482 CMS_CertificateChoices *cch;
483 STACK_OF(CMS_CertificateChoices) **pcerts;
484 int i;
485 pcerts = cms_get0_certificate_choices(cms);
486 if (!pcerts)
487 return NULL;
488 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
489 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
490 if (cch->type == 0) {
491 if (!certs) {
492 certs = sk_X509_new_null();
493 if (!certs)
494 return NULL;
495 }
496 if (!sk_X509_push(certs, cch->d.certificate)) {
497 sk_X509_pop_free(certs, X509_free);
498 return NULL;
499 }
500 X509_up_ref(cch->d.certificate);
501 }
502 }
503 return certs;
504
505}
506
507STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
508{
509 STACK_OF(X509_CRL) *crls = NULL;
510 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
511 CMS_RevocationInfoChoice *rch;
512 int i;
513 pcrls = cms_get0_revocation_choices(cms);
514 if (!pcrls)
515 return NULL;
516 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) {
517 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
518 if (rch->type == 0) {
519 if (!crls) {
520 crls = sk_X509_CRL_new_null();
521 if (!crls)
522 return NULL;
523 }
524 if (!sk_X509_CRL_push(crls, rch->d.crl)) {
525 sk_X509_CRL_pop_free(crls, X509_CRL_free);
526 return NULL;
527 }
528 X509_CRL_up_ref(rch->d.crl);
529 }
530 }
531 return crls;
532}
533
534int cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert)
535{
536 int ret;
537 ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert));
538 if (ret)
539 return ret;
540 return ASN1_INTEGER_cmp(ias->serialNumber, X509_get_serialNumber(cert));
541}
542
543int cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert)
544{
545 const ASN1_OCTET_STRING *cert_keyid = X509_get0_subject_key_id(cert);
546
547 if (cert_keyid == NULL)
548 return -1;
549 return ASN1_OCTET_STRING_cmp(keyid, cert_keyid);
550}
551
552int cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert)
553{
554 CMS_IssuerAndSerialNumber *ias;
555 ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber);
556 if (!ias)
557 goto err;
558 if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert)))
559 goto err;
560 if (!ASN1_STRING_copy(ias->serialNumber, X509_get_serialNumber(cert)))
561 goto err;
562 M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber);
563 *pias = ias;
564 return 1;
565 err:
566 M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber);
567 CMSerr(CMS_F_CMS_SET1_IAS, ERR_R_MALLOC_FAILURE);
568 return 0;
569}
570
571int cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert)
572{
573 ASN1_OCTET_STRING *keyid = NULL;
574 const ASN1_OCTET_STRING *cert_keyid;
575 cert_keyid = X509_get0_subject_key_id(cert);
576 if (cert_keyid == NULL) {
577 CMSerr(CMS_F_CMS_SET1_KEYID, CMS_R_CERTIFICATE_HAS_NO_KEYID);
578 return 0;
579 }
580 keyid = ASN1_STRING_dup(cert_keyid);
581 if (!keyid) {
582 CMSerr(CMS_F_CMS_SET1_KEYID, ERR_R_MALLOC_FAILURE);
583 return 0;
584 }
585 ASN1_OCTET_STRING_free(*pkeyid);
586 *pkeyid = keyid;
587 return 1;
588}
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