BIO_PAIR_DEBUG did nothing; remove it.
[openssl.git] / crypto / cms / cms_asn1.c
1 /*
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/pem.h>
56 #include <openssl/x509v3.h>
57 #include <openssl/cms.h>
58 #include "cms_lcl.h"
59
60
61 ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
62         ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
63         ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
64 } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)
65
66 ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
67         ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
68         ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
69 } static_ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)
70
71 ASN1_CHOICE(CMS_CertificateChoices) = {
72         ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
73         ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
74         ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
75         ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
76         ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
77 } ASN1_CHOICE_END(CMS_CertificateChoices)
78
79 ASN1_CHOICE(CMS_SignerIdentifier) = {
80         ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
81         ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
82 } static_ASN1_CHOICE_END(CMS_SignerIdentifier)
83
84 ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
85         ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
86         ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
87 } static_ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)
88
89 /* Minor tweak to operation: free up signer key, cert */
90 static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
91                      void *exarg)
92 {
93     if (operation == ASN1_OP_FREE_POST) {
94         CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
95         EVP_PKEY_free(si->pkey);
96         X509_free(si->signer);
97         EVP_MD_CTX_free(si->mctx);
98     }
99     return 1;
100 }
101
102 ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
103         ASN1_SIMPLE(CMS_SignerInfo, version, LONG),
104         ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
105         ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
106         ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
107         ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
108         ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
109         ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
110 } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)
111
112 ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
113         ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
114         ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
115 } static_ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)
116
117 ASN1_CHOICE(CMS_RevocationInfoChoice) = {
118         ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
119         ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
120 } ASN1_CHOICE_END(CMS_RevocationInfoChoice)
121
122 ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
123         ASN1_SIMPLE(CMS_SignedData, version, LONG),
124         ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
125         ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
126         ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
127         ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
128         ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
129 } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)
130
131 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
132         ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
133         ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
134 } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo)
135
136 ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = {
137         ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
138         ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
139         ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
140 } static_ASN1_NDEF_SEQUENCE_END(CMS_EncryptedContentInfo)
141
142 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
143         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, version, LONG),
144         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
145         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
146         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
147 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
148
149 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
150         ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
151         ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
152 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
153
154 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
155         ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
156         ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
157         ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
158 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
159
160 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
161   ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
162   ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
163 } static_ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
164
165 static int cms_rek_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
166                       void *exarg)
167 {
168     CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval;
169     if (operation == ASN1_OP_FREE_POST) {
170         EVP_PKEY_free(rek->pkey);
171     }
172     return 1;
173 }
174
175 ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = {
176         ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
177         ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
178 } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey)
179
180 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
181   ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
182   ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
183 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
184
185 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
186   ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
187   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
188   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
189 } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
190
191 static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
192                        void *exarg)
193 {
194     CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval;
195     if (operation == ASN1_OP_NEW_POST) {
196         kari->ctx = EVP_CIPHER_CTX_new();
197         if (kari->ctx == NULL)
198             return 0;
199         EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
200         kari->pctx = NULL;
201     } else if (operation == ASN1_OP_FREE_POST) {
202         EVP_PKEY_CTX_free(kari->pctx);
203         EVP_CIPHER_CTX_free(kari->ctx);
204     }
205     return 1;
206 }
207
208 ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = {
209         ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
210         ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
211         ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
212         ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
213         ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
214 } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo)
215
216 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
217         ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
218         ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
219         ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
220 } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier)
221
222 ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
223         ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
224         ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
225         ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
226         ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
227 } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
228
229 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
230         ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
231         ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
232         ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
233         ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
234 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
235
236 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
237   ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
238   ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
239 } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
240
241 /* Free up RecipientInfo additional data */
242 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
243                      void *exarg)
244 {
245     if (operation == ASN1_OP_FREE_PRE) {
246         CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
247         if (ri->type == CMS_RECIPINFO_TRANS) {
248             CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
249             EVP_PKEY_free(ktri->pkey);
250             X509_free(ktri->recip);
251             EVP_PKEY_CTX_free(ktri->pctx);
252         } else if (ri->type == CMS_RECIPINFO_KEK) {
253             CMS_KEKRecipientInfo *kekri = ri->d.kekri;
254             OPENSSL_clear_free(kekri->key, kekri->keylen);
255         } else if (ri->type == CMS_RECIPINFO_PASS) {
256             CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
257             OPENSSL_clear_free(pwri->pass, pwri->passlen);
258         }
259     }
260     return 1;
261 }
262
263 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
264         ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
265         ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
266         ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
267         ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
268         ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
269 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
270
271 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
272         ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
273         ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
274         ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
275         ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
276         ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
277 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
278
279 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
280         ASN1_SIMPLE(CMS_DigestedData, version, LONG),
281         ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
282         ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
283         ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
284 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
285
286 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
287         ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
288         ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
289         ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
290 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
291
292 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
293         ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
294         ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
295         ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
296         ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
297         ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
298         ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
299         ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
300         ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
301         ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
302 } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
303
304 ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
305         ASN1_SIMPLE(CMS_CompressedData, version, LONG),
306         ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
307         ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
308 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
309
310 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
311
312 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
313
314 ASN1_ADB(CMS_ContentInfo) = {
315         ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
316         ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
317         ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
318         ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
319         ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
320         ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
321         ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
322 } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);
323
324 /* CMS streaming support */
325 static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
326                   void *exarg)
327 {
328     ASN1_STREAM_ARG *sarg = exarg;
329     CMS_ContentInfo *cms = NULL;
330     if (pval)
331         cms = (CMS_ContentInfo *)*pval;
332     else
333         return 1;
334     switch (operation) {
335
336     case ASN1_OP_STREAM_PRE:
337         if (CMS_stream(&sarg->boundary, cms) <= 0)
338             return 0;
339     case ASN1_OP_DETACHED_PRE:
340         sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
341         if (!sarg->ndef_bio)
342             return 0;
343         break;
344
345     case ASN1_OP_STREAM_POST:
346     case ASN1_OP_DETACHED_POST:
347         if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
348             return 0;
349         break;
350
351     }
352     return 1;
353 }
354
355 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
356         ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
357         ASN1_ADB_OBJECT(CMS_ContentInfo)
358 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
359
360 /* Specials for signed attributes */
361
362 /*
363  * When signing attributes we want to reorder them to match the sorted
364  * encoding.
365  */
366
367 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
368         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
369 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
370
371 /*
372  * When verifying attributes we need to use the received order. So we use
373  * SEQUENCE OF and tag it to SET OF
374  */
375
376 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
377         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
378                                 V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
379 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
380
381
382
383 ASN1_CHOICE(CMS_ReceiptsFrom) = {
384   ASN1_IMP(CMS_ReceiptsFrom, d.allOrFirstTier, LONG, 0),
385   ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
386 } static_ASN1_CHOICE_END(CMS_ReceiptsFrom)
387
388 ASN1_SEQUENCE(CMS_ReceiptRequest) = {
389   ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
390   ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
391   ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
392 } ASN1_SEQUENCE_END(CMS_ReceiptRequest)
393
394 ASN1_SEQUENCE(CMS_Receipt) = {
395   ASN1_SIMPLE(CMS_Receipt, version, LONG),
396   ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
397   ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
398   ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
399 } ASN1_SEQUENCE_END(CMS_Receipt)
400
401 /*
402  * Utilities to encode the CMS_SharedInfo structure used during key
403  * derivation.
404  */
405
406 typedef struct {
407     X509_ALGOR *keyInfo;
408     ASN1_OCTET_STRING *entityUInfo;
409     ASN1_OCTET_STRING *suppPubInfo;
410 } CMS_SharedInfo;
411
412 ASN1_SEQUENCE(CMS_SharedInfo) = {
413   ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
414   ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
415   ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
416 } static_ASN1_SEQUENCE_END(CMS_SharedInfo)
417
418 int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg,
419                           ASN1_OCTET_STRING *ukm, int keylen)
420 {
421     union {
422         CMS_SharedInfo *pecsi;
423         ASN1_VALUE *a;
424     } intsi = {
425         NULL
426     };
427
428     ASN1_OCTET_STRING oklen;
429     unsigned char kl[4];
430     CMS_SharedInfo ecsi;
431
432     keylen <<= 3;
433     kl[0] = (keylen >> 24) & 0xff;
434     kl[1] = (keylen >> 16) & 0xff;
435     kl[2] = (keylen >> 8) & 0xff;
436     kl[3] = keylen & 0xff;
437     oklen.length = 4;
438     oklen.data = kl;
439     oklen.type = V_ASN1_OCTET_STRING;
440     oklen.flags = 0;
441     ecsi.keyInfo = kekalg;
442     ecsi.entityUInfo = ukm;
443     ecsi.suppPubInfo = &oklen;
444     intsi.pecsi = &ecsi;
445     return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
446 }