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authorcvs2svn <admin@example.com>2009-06-25 14:33:51 +0000
committercvs2svn <admin@example.com>2009-06-25 14:33:51 +0000
commit3944e6efcea0baa7128a89353d149b37100c0ece (patch)
tree64c1ad6d7af88839fd67d630ca81c768fd1191cd /src/lib/libcrypto/cms/cms_lib.c
parent2eabc3aa42ad7d46a1723621f8e34e533342f67a (diff)
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This commit was manufactured by cvs2git to create tag 'OPENBSD_4_6_BASE'.OPENBSD_4_6_BASE
Diffstat (limited to 'src/lib/libcrypto/cms/cms_lib.c')
-rw-r--r--src/lib/libcrypto/cms/cms_lib.c623
1 files changed, 0 insertions, 623 deletions
diff --git a/src/lib/libcrypto/cms/cms_lib.c b/src/lib/libcrypto/cms/cms_lib.c
deleted file mode 100644
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--- a/src/lib/libcrypto/cms/cms_lib.c
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@@ -1,623 +0,0 @@
1/* crypto/cms/cms_lib.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5/* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 */
53
54#include <openssl/asn1t.h>
55#include <openssl/x509.h>
56#include <openssl/err.h>
57#include <openssl/pem.h>
58#include <openssl/bio.h>
59#include <openssl/asn1.h>
60#include "cms.h"
61#include "cms_lcl.h"
62
63IMPLEMENT_ASN1_FUNCTIONS_const(CMS_ContentInfo)
64
65DECLARE_ASN1_ITEM(CMS_CertificateChoices)
66DECLARE_ASN1_ITEM(CMS_RevocationInfoChoice)
67DECLARE_STACK_OF(CMS_CertificateChoices)
68DECLARE_STACK_OF(CMS_RevocationInfoChoice)
69
70const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms)
71 {
72 return cms->contentType;
73 }
74
75CMS_ContentInfo *cms_Data_create(void)
76 {
77 CMS_ContentInfo *cms;
78 cms = CMS_ContentInfo_new();
79 if (cms)
80 {
81 cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
82 /* Never detached */
83 CMS_set_detached(cms, 0);
84 }
85 return cms;
86 }
87
88BIO *cms_content_bio(CMS_ContentInfo *cms)
89 {
90 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
91 if (!pos)
92 return NULL;
93 /* If content detached data goes nowhere: create NULL BIO */
94 if (!*pos)
95 return BIO_new(BIO_s_null());
96 /* If content not detached and created return memory BIO
97 */
98 if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
99 return BIO_new(BIO_s_mem());
100 /* Else content was read in: return read only BIO for it */
101 return BIO_new_mem_buf((*pos)->data, (*pos)->length);
102 }
103
104BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
105 {
106 BIO *cmsbio, *cont;
107 if (icont)
108 cont = icont;
109 else
110 cont = cms_content_bio(cms);
111 if (!cont)
112 {
113 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT);
114 return NULL;
115 }
116 switch (OBJ_obj2nid(cms->contentType))
117 {
118
119 case NID_pkcs7_data:
120 return cont;
121
122 case NID_pkcs7_signed:
123 cmsbio = cms_SignedData_init_bio(cms);
124 break;
125
126 case NID_pkcs7_digest:
127 cmsbio = cms_DigestedData_init_bio(cms);
128 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 cmsbio = cms_EncryptedData_init_bio(cms);
137 break;
138
139 case NID_pkcs7_enveloped:
140 cmsbio = cms_EnvelopedData_init_bio(cms);
141 break;
142
143 default:
144 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE);
145 return NULL;
146 }
147
148 if (cmsbio)
149 return BIO_push(cmsbio, cont);
150
151 if (!icont)
152 BIO_free(cont);
153 return NULL;
154
155 }
156
157int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
158 {
159 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
160 if (!pos)
161 return 0;
162 /* If ebmedded content find memory BIO and set content */
163 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT))
164 {
165 BIO *mbio;
166 unsigned char *cont;
167 long contlen;
168 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
169 if (!mbio)
170 {
171 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
172 return 0;
173 }
174 contlen = BIO_get_mem_data(mbio, &cont);
175 /* Set bio as read only so its content can't be clobbered */
176 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
177 BIO_set_mem_eof_return(mbio, 0);
178 ASN1_STRING_set0(*pos, cont, contlen);
179 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
180 }
181
182 switch (OBJ_obj2nid(cms->contentType))
183 {
184
185 case NID_pkcs7_data:
186 case NID_pkcs7_enveloped:
187 case NID_pkcs7_encrypted:
188 case NID_id_smime_ct_compressedData:
189 /* Nothing to do */
190 return 1;
191
192 case NID_pkcs7_signed:
193 return cms_SignedData_final(cms, cmsbio);
194
195 case NID_pkcs7_digest:
196 return cms_DigestedData_do_final(cms, cmsbio, 0);
197
198 default:
199 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
200 return 0;
201 }
202 }
203
204/* Return an OCTET STRING pointer to content. This allows it to
205 * be accessed or set later.
206 */
207
208ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
209 {
210 switch (OBJ_obj2nid(cms->contentType))
211 {
212
213 case NID_pkcs7_data:
214 return &cms->d.data;
215
216 case NID_pkcs7_signed:
217 return &cms->d.signedData->encapContentInfo->eContent;
218
219 case NID_pkcs7_enveloped:
220 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
221
222 case NID_pkcs7_digest:
223 return &cms->d.digestedData->encapContentInfo->eContent;
224
225 case NID_pkcs7_encrypted:
226 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
227
228 case NID_id_smime_ct_authData:
229 return &cms->d.authenticatedData->encapContentInfo->eContent;
230
231 case NID_id_smime_ct_compressedData:
232 return &cms->d.compressedData->encapContentInfo->eContent;
233
234 default:
235 if (cms->d.other->type == V_ASN1_OCTET_STRING)
236 return &cms->d.other->value.octet_string;
237 CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
238 return NULL;
239
240 }
241 }
242
243/* Return an ASN1_OBJECT pointer to content type. This allows it to
244 * be accessed or set later.
245 */
246
247static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
248 {
249 switch (OBJ_obj2nid(cms->contentType))
250 {
251
252 case NID_pkcs7_signed:
253 return &cms->d.signedData->encapContentInfo->eContentType;
254
255 case NID_pkcs7_enveloped:
256 return &cms->d.envelopedData->encryptedContentInfo->contentType;
257
258 case NID_pkcs7_digest:
259 return &cms->d.digestedData->encapContentInfo->eContentType;
260
261 case NID_pkcs7_encrypted:
262 return &cms->d.encryptedData->encryptedContentInfo->contentType;
263
264 case NID_id_smime_ct_authData:
265 return &cms->d.authenticatedData->encapContentInfo->eContentType;
266
267 case NID_id_smime_ct_compressedData:
268 return &cms->d.compressedData->encapContentInfo->eContentType;
269
270 default:
271 CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE,
272 CMS_R_UNSUPPORTED_CONTENT_TYPE);
273 return NULL;
274
275 }
276 }
277
278const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
279 {
280 ASN1_OBJECT **petype;
281 petype = cms_get0_econtent_type(cms);
282 if (petype)
283 return *petype;
284 return NULL;
285 }
286
287int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
288 {
289 ASN1_OBJECT **petype, *etype;
290 petype = cms_get0_econtent_type(cms);
291 if (!petype)
292 return 0;
293 if (!oid)
294 return 1;
295 etype = OBJ_dup(oid);
296 if (!etype)
297 return 0;
298 ASN1_OBJECT_free(*petype);
299 *petype = etype;
300 return 1;
301 }
302
303int CMS_is_detached(CMS_ContentInfo *cms)
304 {
305 ASN1_OCTET_STRING **pos;
306 pos = CMS_get0_content(cms);
307 if (!pos)
308 return -1;
309 if (*pos)
310 return 0;
311 return 1;
312 }
313
314int CMS_set_detached(CMS_ContentInfo *cms, int detached)
315 {
316 ASN1_OCTET_STRING **pos;
317 pos = CMS_get0_content(cms);
318 if (!pos)
319 return 0;
320 if (detached)
321 {
322 if (*pos)
323 {
324 ASN1_OCTET_STRING_free(*pos);
325 *pos = NULL;
326 }
327 return 1;
328 }
329 if (!*pos)
330 *pos = ASN1_OCTET_STRING_new();
331 if (*pos)
332 {
333 /* NB: special flag to show content is created and not
334 * read in.
335 */
336 (*pos)->flags |= ASN1_STRING_FLAG_CONT;
337 return 1;
338 }
339 CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
340 return 0;
341 }
342
343/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
344
345void cms_DigestAlgorithm_set(X509_ALGOR *alg, const EVP_MD *md)
346 {
347 int param_type;
348
349 switch (EVP_MD_type(md))
350 {
351 case NID_sha1:
352 case NID_sha224:
353 case NID_sha256:
354 case NID_sha384:
355 case NID_sha512:
356 param_type = V_ASN1_UNDEF;
357 break;
358
359 default:
360 param_type = V_ASN1_NULL;
361 break;
362 }
363
364 X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
365
366 }
367
368/* Create a digest BIO from an X509_ALGOR structure */
369
370BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
371 {
372 BIO *mdbio = NULL;
373 ASN1_OBJECT *digestoid;
374 const EVP_MD *digest;
375 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
376 digest = EVP_get_digestbyobj(digestoid);
377 if (!digest)
378 {
379 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
380 CMS_R_UNKNOWN_DIGEST_ALGORIHM);
381 goto err;
382 }
383 mdbio = BIO_new(BIO_f_md());
384 if (!mdbio || !BIO_set_md(mdbio, digest))
385 {
386 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
387 CMS_R_MD_BIO_INIT_ERROR);
388 goto err;
389 }
390 return mdbio;
391 err:
392 if (mdbio)
393 BIO_free(mdbio);
394 return NULL;
395 }
396
397/* Locate a message digest content from a BIO chain based on SignerInfo */
398
399int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
400 X509_ALGOR *mdalg)
401 {
402 int nid;
403 ASN1_OBJECT *mdoid;
404 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
405 nid = OBJ_obj2nid(mdoid);
406 /* Look for digest type to match signature */
407 for (;;)
408 {
409 EVP_MD_CTX *mtmp;
410 chain = BIO_find_type(chain, BIO_TYPE_MD);
411 if (chain == NULL)
412 {
413 CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
414 CMS_R_NO_MATCHING_DIGEST);
415 return 0;
416 }
417 BIO_get_md_ctx(chain, &mtmp);
418 if (EVP_MD_CTX_type(mtmp) == nid)
419 {
420 EVP_MD_CTX_copy_ex(mctx, mtmp);
421 return 1;
422 }
423 chain = BIO_next(chain);
424 }
425 }
426
427static STACK_OF(CMS_CertificateChoices) **cms_get0_certificate_choices(CMS_ContentInfo *cms)
428 {
429 switch (OBJ_obj2nid(cms->contentType))
430 {
431
432 case NID_pkcs7_signed:
433 return &cms->d.signedData->certificates;
434
435 case NID_pkcs7_enveloped:
436 return &cms->d.envelopedData->originatorInfo->certificates;
437
438 default:
439 CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
440 CMS_R_UNSUPPORTED_CONTENT_TYPE);
441 return NULL;
442
443 }
444 }
445
446CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
447 {
448 STACK_OF(CMS_CertificateChoices) **pcerts;
449 CMS_CertificateChoices *cch;
450 pcerts = cms_get0_certificate_choices(cms);
451 if (!pcerts)
452 return NULL;
453 if (!*pcerts)
454 *pcerts = sk_CMS_CertificateChoices_new_null();
455 if (!*pcerts)
456 return NULL;
457 cch = M_ASN1_new_of(CMS_CertificateChoices);
458 if (!cch)
459 return NULL;
460 if (!sk_CMS_CertificateChoices_push(*pcerts, cch))
461 {
462 M_ASN1_free_of(cch, CMS_CertificateChoices);
463 return NULL;
464 }
465 return cch;
466 }
467
468int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
469 {
470 CMS_CertificateChoices *cch;
471 STACK_OF(CMS_CertificateChoices) **pcerts;
472 int i;
473 pcerts = cms_get0_certificate_choices(cms);
474 if (!pcerts)
475 return 0;
476 if (!pcerts)
477 return 0;
478 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++)
479 {
480 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
481 if (cch->type == CMS_CERTCHOICE_CERT)
482 {
483 if (!X509_cmp(cch->d.certificate, cert))
484 {
485 CMSerr(CMS_F_CMS_ADD0_CERT,
486 CMS_R_CERTIFICATE_ALREADY_PRESENT);
487 return 0;
488 }
489 }
490 }
491 cch = CMS_add0_CertificateChoices(cms);
492 if (!cch)
493 return 0;
494 cch->type = CMS_CERTCHOICE_CERT;
495 cch->d.certificate = cert;
496 return 1;
497 }
498
499int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
500 {
501 int r;
502 r = CMS_add0_cert(cms, cert);
503 if (r > 0)
504 CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
505 return r;
506 }
507
508static STACK_OF(CMS_RevocationInfoChoice) **cms_get0_revocation_choices(CMS_ContentInfo *cms)
509 {
510 switch (OBJ_obj2nid(cms->contentType))
511 {
512
513 case NID_pkcs7_signed:
514 return &cms->d.signedData->crls;
515
516 case NID_pkcs7_enveloped:
517 return &cms->d.envelopedData->originatorInfo->crls;
518
519 default:
520 CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
521 CMS_R_UNSUPPORTED_CONTENT_TYPE);
522 return NULL;
523
524 }
525 }
526
527CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
528 {
529 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
530 CMS_RevocationInfoChoice *rch;
531 pcrls = cms_get0_revocation_choices(cms);
532 if (!pcrls)
533 return NULL;
534 if (!*pcrls)
535 *pcrls = sk_CMS_RevocationInfoChoice_new_null();
536 if (!*pcrls)
537 return NULL;
538 rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
539 if (!rch)
540 return NULL;
541 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch))
542 {
543 M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
544 return NULL;
545 }
546 return rch;
547 }
548
549int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
550 {
551 CMS_RevocationInfoChoice *rch;
552 rch = CMS_add0_RevocationInfoChoice(cms);
553 if (!rch)
554 return 0;
555 rch->type = CMS_REVCHOICE_CRL;
556 rch->d.crl = crl;
557 return 1;
558 }
559
560STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
561 {
562 STACK_OF(X509) *certs = NULL;
563 CMS_CertificateChoices *cch;
564 STACK_OF(CMS_CertificateChoices) **pcerts;
565 int i;
566 pcerts = cms_get0_certificate_choices(cms);
567 if (!pcerts)
568 return NULL;
569 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++)
570 {
571 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
572 if (cch->type == 0)
573 {
574 if (!certs)
575 {
576 certs = sk_X509_new_null();
577 if (!certs)
578 return NULL;
579 }
580 if (!sk_X509_push(certs, cch->d.certificate))
581 {
582 sk_X509_pop_free(certs, X509_free);
583 return NULL;
584 }
585 CRYPTO_add(&cch->d.certificate->references,
586 1, CRYPTO_LOCK_X509);
587 }
588 }
589 return certs;
590
591 }
592
593STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
594 {
595 STACK_OF(X509_CRL) *crls = NULL;
596 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
597 CMS_RevocationInfoChoice *rch;
598 int i;
599 pcrls = cms_get0_revocation_choices(cms);
600 if (!pcrls)
601 return NULL;
602 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++)
603 {
604 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
605 if (rch->type == 0)
606 {
607 if (!crls)
608 {
609 crls = sk_X509_CRL_new_null();
610 if (!crls)
611 return NULL;
612 }
613 if (!sk_X509_CRL_push(crls, rch->d.crl))
614 {
615 sk_X509_CRL_pop_free(crls, X509_CRL_free);
616 return NULL;
617 }
618 CRYPTO_add(&rch->d.crl->references,
619 1, CRYPTO_LOCK_X509_CRL);
620 }
621 }
622 return crls;
623 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-05 21:19:18 +0000