In BIO_write(), update the write statistics, not the read statistics.
[openssl.git] / crypto / pkcs7 / pk7_asn1.c
1 /* pk7_asn.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project 2000.
4  */
5 /* ====================================================================
6  * Copyright (c) 2000 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  * This product includes cryptographic software written by Eric Young
54  * (eay@cryptsoft.com).  This product includes software written by Tim
55  * Hudson (tjh@cryptsoft.com).
56  *
57  */
58
59 #include <stdio.h>
60 #include "cryptlib.h"
61 #include <openssl/asn1t.h>
62 #include <openssl/pkcs7.h>
63 #include <openssl/x509.h>
64
65 /* PKCS#7 ASN1 module */
66
67 /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */
68
69 ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0);
70
71 ASN1_ADB(PKCS7) = {
72         ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)),
73         ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
74         ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
75         ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
76         ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
77         ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
78 } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL);
79
80 /* PKCS#7 streaming support */
81 static int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
82                                                         void *exarg)
83 {
84         ASN1_STREAM_ARG *sarg = exarg;
85         PKCS7 *p7;
86         if (pval)
87                 p7 = (PKCS7 *)*pval;
88         else
89                 p7 = NULL;
90         switch(operation)
91                 {
92
93                 case ASN1_OP_STREAM_PRE:
94                 if (PKCS7_stream(&sarg->boundary, p7) <= 0)
95                         return 0;
96                 case ASN1_OP_DETACHED_PRE:
97                 sarg->ndef_bio = PKCS7_dataInit(p7, sarg->out);
98                 if (!sarg->ndef_bio)
99                         return 0;
100                 break;
101
102                 case ASN1_OP_STREAM_POST:
103                 case ASN1_OP_DETACHED_POST:
104                 if (PKCS7_dataFinal(p7, sarg->ndef_bio) <= 0)
105                         return 0;
106                 break;
107
108                 }
109         return 1;
110 }
111
112 ASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = {
113         ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
114         ASN1_ADB_OBJECT(PKCS7)
115 }ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7)
116
117 IMPLEMENT_ASN1_FUNCTIONS(PKCS7)
118 IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7)
119 IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7)
120
121 ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = {
122         ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
123         ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
124         ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
125         ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
126         ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
127         ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
128 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED)
129
130 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED)
131
132 /* Minor tweak to operation: free up EVP_PKEY */
133 static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
134                                                         void *exarg)
135 {
136         if(operation == ASN1_OP_FREE_POST) {
137                 PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
138                 EVP_PKEY_free(si->pkey);
139         }
140         return 1;
141 }
142
143 ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = {
144         ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
145         ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
146         ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
147         /* NB this should be a SET OF but we use a SEQUENCE OF so the
148          * original order * is retained when the structure is reencoded.
149          * Since the attributes are implicitly tagged this will not affect
150          * the encoding.
151          */
152         ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
153         ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
154         ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
155         ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
156 } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO)
157
158 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
159
160 ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = {
161         ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
162         ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
163 } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL)
164
165 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
166
167 ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = {
168         ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
169         ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
170         ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
171 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE)
172
173 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
174
175 /* Minor tweak to operation: free up X509 */
176 static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
177                                                                 void *exarg)
178 {
179         if(operation == ASN1_OP_FREE_POST) {
180                 PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
181                 X509_free(ri->cert);
182         }
183         return 1;
184 }
185
186 ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = {
187         ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
188         ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
189         ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
190         ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
191 } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO)
192
193 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
194
195 ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = {
196         ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
197         ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
198         ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0)
199 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT)
200
201 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
202
203 ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
204         ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
205         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
206         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
207         ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
208         ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
209         ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
210         ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
211 } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE)
212
213 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
214
215 ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = {
216         ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
217         ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
218 } ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT)
219
220 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
221
222 ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = {
223         ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
224         ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
225         ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
226         ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
227 } ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST)
228
229 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST)
230
231 /* Specials for authenticated attributes */
232
233 /* When signing attributes we want to reorder them to match the sorted
234  * encoding.
235  */
236
237 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = 
238         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
239 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN)
240
241 /* When verifying attributes we need to use the received order. So 
242  * we use SEQUENCE OF and tag it to SET OF
243  */
244
245 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = 
246         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
247                                 V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
248 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY)
249
250 IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7)