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source: vbox/trunk/src/libs/openssl-1.1.0g/crypto/cms/cms_lib.c@ 69881

Last change on this file since 69881 was 69881, checked in by vboxsync, 7 years ago

Update OpenSSL to 1.1.0g.
bugref:8070: src/libs maintenance
  • Property svn:eol-style set to native
File size: 15.5 KB
Line 
1/*
2 * Copyright 2008-2016 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_lcl.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 return NULL;
96 }
97
98 if (cmsbio)
99 return BIO_push(cmsbio, cont);
100
101 if (!icont)
102 BIO_free(cont);
103 return NULL;
104
105}
106
107int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
108{
109 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
110 if (!pos)
111 return 0;
112 /* If embedded content find memory BIO and set content */
113 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) {
114 BIO *mbio;
115 unsigned char *cont;
116 long contlen;
117 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
118 if (!mbio) {
119 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
120 return 0;
121 }
122 contlen = BIO_get_mem_data(mbio, &cont);
123 /* Set bio as read only so its content can't be clobbered */
124 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
125 BIO_set_mem_eof_return(mbio, 0);
126 ASN1_STRING_set0(*pos, cont, contlen);
127 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
128 }
129
130 switch (OBJ_obj2nid(cms->contentType)) {
131
132 case NID_pkcs7_data:
133 case NID_pkcs7_enveloped:
134 case NID_pkcs7_encrypted:
135 case NID_id_smime_ct_compressedData:
136 /* Nothing to do */
137 return 1;
138
139 case NID_pkcs7_signed:
140 return cms_SignedData_final(cms, cmsbio);
141
142 case NID_pkcs7_digest:
143 return cms_DigestedData_do_final(cms, cmsbio, 0);
144
145 default:
146 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
147 return 0;
148 }
149}
150
151/*
152 * Return an OCTET STRING pointer to content. This allows it to be accessed
153 * or set later.
154 */
155
156ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
157{
158 switch (OBJ_obj2nid(cms->contentType)) {
159
160 case NID_pkcs7_data:
161 return &cms->d.data;
162
163 case NID_pkcs7_signed:
164 return &cms->d.signedData->encapContentInfo->eContent;
165
166 case NID_pkcs7_enveloped:
167 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
168
169 case NID_pkcs7_digest:
170 return &cms->d.digestedData->encapContentInfo->eContent;
171
172 case NID_pkcs7_encrypted:
173 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
174
175 case NID_id_smime_ct_authData:
176 return &cms->d.authenticatedData->encapContentInfo->eContent;
177
178 case NID_id_smime_ct_compressedData:
179 return &cms->d.compressedData->encapContentInfo->eContent;
180
181 default:
182 if (cms->d.other->type == V_ASN1_OCTET_STRING)
183 return &cms->d.other->value.octet_string;
184 CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
185 return NULL;
186
187 }
188}
189
190/*
191 * Return an ASN1_OBJECT pointer to content type. This allows it to be
192 * accessed or set later.
193 */
194
195static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
196{
197 switch (OBJ_obj2nid(cms->contentType)) {
198
199 case NID_pkcs7_signed:
200 return &cms->d.signedData->encapContentInfo->eContentType;
201
202 case NID_pkcs7_enveloped:
203 return &cms->d.envelopedData->encryptedContentInfo->contentType;
204
205 case NID_pkcs7_digest:
206 return &cms->d.digestedData->encapContentInfo->eContentType;
207
208 case NID_pkcs7_encrypted:
209 return &cms->d.encryptedData->encryptedContentInfo->contentType;
210
211 case NID_id_smime_ct_authData:
212 return &cms->d.authenticatedData->encapContentInfo->eContentType;
213
214 case NID_id_smime_ct_compressedData:
215 return &cms->d.compressedData->encapContentInfo->eContentType;
216
217 default:
218 CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE, CMS_R_UNSUPPORTED_CONTENT_TYPE);
219 return NULL;
220
221 }
222}
223
224const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
225{
226 ASN1_OBJECT **petype;
227 petype = cms_get0_econtent_type(cms);
228 if (petype)
229 return *petype;
230 return NULL;
231}
232
233int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
234{
235 ASN1_OBJECT **petype, *etype;
236 petype = cms_get0_econtent_type(cms);
237 if (!petype)
238 return 0;
239 if (!oid)
240 return 1;
241 etype = OBJ_dup(oid);
242 if (!etype)
243 return 0;
244 ASN1_OBJECT_free(*petype);
245 *petype = etype;
246 return 1;
247}
248
249int CMS_is_detached(CMS_ContentInfo *cms)
250{
251 ASN1_OCTET_STRING **pos;
252 pos = CMS_get0_content(cms);
253 if (!pos)
254 return -1;
255 if (*pos)
256 return 0;
257 return 1;
258}
259
260int CMS_set_detached(CMS_ContentInfo *cms, int detached)
261{
262 ASN1_OCTET_STRING **pos;
263 pos = CMS_get0_content(cms);
264 if (!pos)
265 return 0;
266 if (detached) {
267 ASN1_OCTET_STRING_free(*pos);
268 *pos = NULL;
269 return 1;
270 }
271 if (*pos == NULL)
272 *pos = ASN1_OCTET_STRING_new();
273 if (*pos != NULL) {
274 /*
275 * NB: special flag to show content is created and not read in.
276 */
277 (*pos)->flags |= ASN1_STRING_FLAG_CONT;
278 return 1;
279 }
280 CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
281 return 0;
282}
283
284/* Create a digest BIO from an X509_ALGOR structure */
285
286BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
287{
288 BIO *mdbio = NULL;
289 const ASN1_OBJECT *digestoid;
290 const EVP_MD *digest;
291 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
292 digest = EVP_get_digestbyobj(digestoid);
293 if (!digest) {
294 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
295 CMS_R_UNKNOWN_DIGEST_ALGORIHM);
296 goto err;
297 }
298 mdbio = BIO_new(BIO_f_md());
299 if (mdbio == NULL || !BIO_set_md(mdbio, digest)) {
300 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, CMS_R_MD_BIO_INIT_ERROR);
301 goto err;
302 }
303 return mdbio;
304 err:
305 BIO_free(mdbio);
306 return NULL;
307}
308
309/* Locate a message digest content from a BIO chain based on SignerInfo */
310
311int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
312 X509_ALGOR *mdalg)
313{
314 int nid;
315 const ASN1_OBJECT *mdoid;
316 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
317 nid = OBJ_obj2nid(mdoid);
318 /* Look for digest type to match signature */
319 for (;;) {
320 EVP_MD_CTX *mtmp;
321 chain = BIO_find_type(chain, BIO_TYPE_MD);
322 if (chain == NULL) {
323 CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
324 CMS_R_NO_MATCHING_DIGEST);
325 return 0;
326 }
327 BIO_get_md_ctx(chain, &mtmp);
328 if (EVP_MD_CTX_type(mtmp) == nid
329 /*
330 * Workaround for broken implementations that use signature
331 * algorithm OID instead of digest.
332 */
333 || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)
334 return EVP_MD_CTX_copy_ex(mctx, mtmp);
335 chain = BIO_next(chain);
336 }
337}
338
339static STACK_OF(CMS_CertificateChoices)
340**cms_get0_certificate_choices(CMS_ContentInfo *cms)
341{
342 switch (OBJ_obj2nid(cms->contentType)) {
343
344 case NID_pkcs7_signed:
345 return &cms->d.signedData->certificates;
346
347 case NID_pkcs7_enveloped:
348 if (cms->d.envelopedData->originatorInfo == NULL)
349 return NULL;
350 return &cms->d.envelopedData->originatorInfo->certificates;
351
352 default:
353 CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
354 CMS_R_UNSUPPORTED_CONTENT_TYPE);
355 return NULL;
356
357 }
358}
359
360CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
361{
362 STACK_OF(CMS_CertificateChoices) **pcerts;
363 CMS_CertificateChoices *cch;
364 pcerts = cms_get0_certificate_choices(cms);
365 if (!pcerts)
366 return NULL;
367 if (!*pcerts)
368 *pcerts = sk_CMS_CertificateChoices_new_null();
369 if (!*pcerts)
370 return NULL;
371 cch = M_ASN1_new_of(CMS_CertificateChoices);
372 if (!cch)
373 return NULL;
374 if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) {
375 M_ASN1_free_of(cch, CMS_CertificateChoices);
376 return NULL;
377 }
378 return cch;
379}
380
381int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
382{
383 CMS_CertificateChoices *cch;
384 STACK_OF(CMS_CertificateChoices) **pcerts;
385 int i;
386 pcerts = cms_get0_certificate_choices(cms);
387 if (!pcerts)
388 return 0;
389 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
390 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
391 if (cch->type == CMS_CERTCHOICE_CERT) {
392 if (!X509_cmp(cch->d.certificate, cert)) {
393 CMSerr(CMS_F_CMS_ADD0_CERT,
394 CMS_R_CERTIFICATE_ALREADY_PRESENT);
395 return 0;
396 }
397 }
398 }
399 cch = CMS_add0_CertificateChoices(cms);
400 if (!cch)
401 return 0;
402 cch->type = CMS_CERTCHOICE_CERT;
403 cch->d.certificate = cert;
404 return 1;
405}
406
407int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
408{
409 int r;
410 r = CMS_add0_cert(cms, cert);
411 if (r > 0)
412 X509_up_ref(cert);
413 return r;
414}
415
416static STACK_OF(CMS_RevocationInfoChoice)
417**cms_get0_revocation_choices(CMS_ContentInfo *cms)
418{
419 switch (OBJ_obj2nid(cms->contentType)) {
420
421 case NID_pkcs7_signed:
422 return &cms->d.signedData->crls;
423
424 case NID_pkcs7_enveloped:
425 if (cms->d.envelopedData->originatorInfo == NULL)
426 return NULL;
427 return &cms->d.envelopedData->originatorInfo->crls;
428
429 default:
430 CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
431 CMS_R_UNSUPPORTED_CONTENT_TYPE);
432 return NULL;
433
434 }
435}
436
437CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
438{
439 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
440 CMS_RevocationInfoChoice *rch;
441 pcrls = cms_get0_revocation_choices(cms);
442 if (!pcrls)
443 return NULL;
444 if (!*pcrls)
445 *pcrls = sk_CMS_RevocationInfoChoice_new_null();
446 if (!*pcrls)
447 return NULL;
448 rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
449 if (!rch)
450 return NULL;
451 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) {
452 M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
453 return NULL;
454 }
455 return rch;
456}
457
458int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
459{
460 CMS_RevocationInfoChoice *rch;
461 rch = CMS_add0_RevocationInfoChoice(cms);
462 if (!rch)
463 return 0;
464 rch->type = CMS_REVCHOICE_CRL;
465 rch->d.crl = crl;
466 return 1;
467}
468
469int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl)
470{
471 int r;
472 r = CMS_add0_crl(cms, crl);
473 if (r > 0)
474 X509_CRL_up_ref(crl);
475 return r;
476}
477
478STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
479{
480 STACK_OF(X509) *certs = NULL;
481 CMS_CertificateChoices *cch;
482 STACK_OF(CMS_CertificateChoices) **pcerts;
483 int i;
484 pcerts = cms_get0_certificate_choices(cms);
485 if (!pcerts)
486 return NULL;
487 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
488 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
489 if (cch->type == 0) {
490 if (!certs) {
491 certs = sk_X509_new_null();
492 if (!certs)
493 return NULL;
494 }
495 if (!sk_X509_push(certs, cch->d.certificate)) {
496 sk_X509_pop_free(certs, X509_free);
497 return NULL;
498 }
499 X509_up_ref(cch->d.certificate);
500 }
501 }
502 return certs;
503
504}
505
506STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
507{
508 STACK_OF(X509_CRL) *crls = NULL;
509 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
510 CMS_RevocationInfoChoice *rch;
511 int i;
512 pcrls = cms_get0_revocation_choices(cms);
513 if (!pcrls)
514 return NULL;
515 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) {
516 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
517 if (rch->type == 0) {
518 if (!crls) {
519 crls = sk_X509_CRL_new_null();
520 if (!crls)
521 return NULL;
522 }
523 if (!sk_X509_CRL_push(crls, rch->d.crl)) {
524 sk_X509_CRL_pop_free(crls, X509_CRL_free);
525 return NULL;
526 }
527 X509_CRL_up_ref(rch->d.crl);
528 }
529 }
530 return crls;
531}
532
533int cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert)
534{
535 int ret;
536 ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert));
537 if (ret)
538 return ret;
539 return ASN1_INTEGER_cmp(ias->serialNumber, X509_get_serialNumber(cert));
540}
541
542int cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert)
543{
544 const ASN1_OCTET_STRING *cert_keyid = X509_get0_subject_key_id(cert);
545
546 if (cert_keyid == NULL)
547 return -1;
548 return ASN1_OCTET_STRING_cmp(keyid, cert_keyid);
549}
550
551int cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert)
552{
553 CMS_IssuerAndSerialNumber *ias;
554 ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber);
555 if (!ias)
556 goto err;
557 if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert)))
558 goto err;
559 if (!ASN1_STRING_copy(ias->serialNumber, X509_get_serialNumber(cert)))
560 goto err;
561 M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber);
562 *pias = ias;
563 return 1;
564 err:
565 M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber);
566 CMSerr(CMS_F_CMS_SET1_IAS, ERR_R_MALLOC_FAILURE);
567 return 0;
568}
569
570int cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert)
571{
572 ASN1_OCTET_STRING *keyid = NULL;
573 const ASN1_OCTET_STRING *cert_keyid;
574 cert_keyid = X509_get0_subject_key_id(cert);
575 if (cert_keyid == NULL) {
576 CMSerr(CMS_F_CMS_SET1_KEYID, CMS_R_CERTIFICATE_HAS_NO_KEYID);
577 return 0;
578 }
579 keyid = ASN1_STRING_dup(cert_keyid);
580 if (!keyid) {
581 CMSerr(CMS_F_CMS_SET1_KEYID, ERR_R_MALLOC_FAILURE);
582 return 0;
583 }
584 ASN1_OCTET_STRING_free(*pkeyid);
585 *pkeyid = keyid;
586 return 1;
587}
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