1 /* $OpenBSD: cms_io.c,v 1.21 2024/03/30 01:53:05 joshua Exp $ */
2 /*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 * project.
5 */
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 */
54
55 #include <openssl/asn1t.h>
56 #include <openssl/cms.h>
57 #include <openssl/err.h>
58 #include <openssl/pem.h>
59 #include <openssl/x509.h>
60
61 #include "asn1_local.h"
62 #include "cms_local.h"
63
64 int
CMS_stream(unsigned char *** boundary,CMS_ContentInfo * cms)65 CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
66 {
67 ASN1_OCTET_STRING **pos;
68
69 if ((pos = CMS_get0_content(cms)) == NULL)
70 return 0;
71
72 if (*pos == NULL)
73 *pos = ASN1_OCTET_STRING_new();
74 if (*pos == NULL) {
75 CMSerror(ERR_R_MALLOC_FAILURE);
76 return 0;
77 }
78
79 (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
80 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
81 *boundary = &(*pos)->data;
82
83 return 1;
84 }
85 LCRYPTO_ALIAS(CMS_stream);
86
87 CMS_ContentInfo *
d2i_CMS_bio(BIO * bp,CMS_ContentInfo ** cms)88 d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
89 {
90 return ASN1_item_d2i_bio(&CMS_ContentInfo_it, bp, cms);
91 }
92 LCRYPTO_ALIAS(d2i_CMS_bio);
93
94 int
i2d_CMS_bio(BIO * bp,CMS_ContentInfo * cms)95 i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
96 {
97 return ASN1_item_i2d_bio(&CMS_ContentInfo_it, bp, cms);
98 }
99 LCRYPTO_ALIAS(i2d_CMS_bio);
100
101
102 CMS_ContentInfo *
PEM_read_bio_CMS(BIO * bp,CMS_ContentInfo ** x,pem_password_cb * cb,void * u)103 PEM_read_bio_CMS(BIO *bp, CMS_ContentInfo **x, pem_password_cb *cb, void *u)
104 {
105 return PEM_ASN1_read_bio((d2i_of_void *)d2i_CMS_ContentInfo,
106 PEM_STRING_CMS, bp, (void **)x, cb, u);
107 }
108 LCRYPTO_ALIAS(PEM_read_bio_CMS);
109
110 CMS_ContentInfo *
PEM_read_CMS(FILE * fp,CMS_ContentInfo ** x,pem_password_cb * cb,void * u)111 PEM_read_CMS(FILE *fp, CMS_ContentInfo **x, pem_password_cb *cb, void *u)
112 {
113 return PEM_ASN1_read((d2i_of_void *)d2i_CMS_ContentInfo,
114 PEM_STRING_CMS, fp, (void **)x, cb, u);
115 }
116 LCRYPTO_ALIAS(PEM_read_CMS);
117
118 int
PEM_write_bio_CMS(BIO * bp,const CMS_ContentInfo * x)119 PEM_write_bio_CMS(BIO *bp, const CMS_ContentInfo *x)
120 {
121 return PEM_ASN1_write_bio((i2d_of_void *)i2d_CMS_ContentInfo,
122 PEM_STRING_CMS, bp, (void *)x, NULL, NULL, 0, NULL, NULL);
123 }
124 LCRYPTO_ALIAS(PEM_write_bio_CMS);
125
126 int
PEM_write_CMS(FILE * fp,const CMS_ContentInfo * x)127 PEM_write_CMS(FILE *fp, const CMS_ContentInfo *x)
128 {
129 return PEM_ASN1_write((i2d_of_void *)i2d_CMS_ContentInfo,
130 PEM_STRING_CMS, fp, (void *)x, NULL, NULL, 0, NULL, NULL);
131 }
132 LCRYPTO_ALIAS(PEM_write_CMS);
133
134 BIO *
BIO_new_CMS(BIO * out,CMS_ContentInfo * cms)135 BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
136 {
137 return BIO_new_NDEF(out, (ASN1_VALUE *)cms, &CMS_ContentInfo_it);
138 }
139 LCRYPTO_ALIAS(BIO_new_CMS);
140
141 /* CMS wrappers round generalised stream and MIME routines */
142
143 int
i2d_CMS_bio_stream(BIO * out,CMS_ContentInfo * cms,BIO * in,int flags)144 i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
145 {
146 return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
147 &CMS_ContentInfo_it);
148 }
149 LCRYPTO_ALIAS(i2d_CMS_bio_stream);
150
151 int
PEM_write_bio_CMS_stream(BIO * out,CMS_ContentInfo * cms,BIO * in,int flags)152 PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
153 {
154 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
155 "CMS", &CMS_ContentInfo_it);
156 }
157 LCRYPTO_ALIAS(PEM_write_bio_CMS_stream);
158
159 int
SMIME_write_CMS(BIO * bio,CMS_ContentInfo * cms,BIO * data,int flags)160 SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
161 {
162 STACK_OF(X509_ALGOR) *mdalgs = NULL;
163 int ctype_nid = OBJ_obj2nid(cms->contentType);
164 int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
165
166 if (ctype_nid == NID_pkcs7_signed)
167 mdalgs = cms->d.signedData->digestAlgorithms;
168
169 return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags, ctype_nid,
170 econt_nid, mdalgs, &CMS_ContentInfo_it);
171 }
172 LCRYPTO_ALIAS(SMIME_write_CMS);
173
174 CMS_ContentInfo *
SMIME_read_CMS(BIO * bio,BIO ** bcont)175 SMIME_read_CMS(BIO *bio, BIO **bcont)
176 {
177 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
178 &CMS_ContentInfo_it);
179 }
180 LCRYPTO_ALIAS(SMIME_read_CMS);
181