1 /* crypto/cms/cms_cd.c */
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 "cryptlib.h"
56 #include <openssl/asn1t.h>
57 #include <openssl/pem.h>
58 #include <openssl/x509v3.h>
59 #include <openssl/err.h>
60 #include <openssl/cms.h>
61 #include <openssl/bio.h>
62 #ifndef OPENSSL_NO_COMP
63 # include <openssl/comp.h>
64 #endif
65 #include "cms_lcl.h"
66
DECLARE_ASN1_ITEM(CMS_CompressedData)67 DECLARE_ASN1_ITEM(CMS_CompressedData)
68
69 #ifdef ZLIB
70
71 /* CMS CompressedData Utilities */
72
73 CMS_ContentInfo *cms_CompressedData_create(int comp_nid)
74 {
75 CMS_ContentInfo *cms;
76 CMS_CompressedData *cd;
77 /*
78 * Will need something cleverer if there is ever more than one
79 * compression algorithm or parameters have some meaning...
80 */
81 if (comp_nid != NID_zlib_compression) {
82 CMSerr(CMS_F_CMS_COMPRESSEDDATA_CREATE,
83 CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
84 return NULL;
85 }
86 cms = CMS_ContentInfo_new();
87 if (!cms)
88 return NULL;
89
90 cd = M_ASN1_new_of(CMS_CompressedData);
91
92 if (!cd)
93 goto err;
94
95 cms->contentType = OBJ_nid2obj(NID_id_smime_ct_compressedData);
96 cms->d.compressedData = cd;
97
98 cd->version = 0;
99
100 X509_ALGOR_set0(cd->compressionAlgorithm,
101 OBJ_nid2obj(NID_zlib_compression), V_ASN1_UNDEF, NULL);
102
103 cd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data);
104
105 return cms;
106
107 err:
108
109 if (cms)
110 CMS_ContentInfo_free(cms);
111
112 return NULL;
113 }
114
cms_CompressedData_init_bio(CMS_ContentInfo * cms)115 BIO *cms_CompressedData_init_bio(CMS_ContentInfo *cms)
116 {
117 CMS_CompressedData *cd;
118 ASN1_OBJECT *compoid;
119 if (OBJ_obj2nid(cms->contentType) != NID_id_smime_ct_compressedData) {
120 CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO,
121 CMS_R_CONTENT_TYPE_NOT_COMPRESSED_DATA);
122 return NULL;
123 }
124 cd = cms->d.compressedData;
125 X509_ALGOR_get0(&compoid, NULL, NULL, cd->compressionAlgorithm);
126 if (OBJ_obj2nid(compoid) != NID_zlib_compression) {
127 CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO,
128 CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
129 return NULL;
130 }
131 return BIO_new(BIO_f_zlib());
132 }
133
134 #endif
135