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8931b30d | 1 | /* crypto/cms/cms_cd.c */ |
0f113f3e MC |
2 | /* |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
8931b30d DSH |
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 | |
0f113f3e | 14 | * notice, this list of conditions and the following disclaimer. |
8931b30d DSH |
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> | |
1703627b | 62 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 63 | # include <openssl/comp.h> |
1703627b | 64 | #endif |
8931b30d | 65 | #include "cms_lcl.h" |
8931b30d DSH |
66 | |
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) | |
0f113f3e MC |
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; | |
8931b30d | 89 | |
0f113f3e | 90 | cd = M_ASN1_new_of(CMS_CompressedData); |
8931b30d | 91 | |
0f113f3e MC |
92 | if (!cd) |
93 | goto err; | |
8931b30d | 94 | |
0f113f3e MC |
95 | cms->contentType = OBJ_nid2obj(NID_id_smime_ct_compressedData); |
96 | cms->d.compressedData = cd; | |
8931b30d | 97 | |
0f113f3e | 98 | cd->version = 0; |
8931b30d | 99 | |
0f113f3e MC |
100 | X509_ALGOR_set0(cd->compressionAlgorithm, |
101 | OBJ_nid2obj(NID_zlib_compression), V_ASN1_UNDEF, NULL); | |
8931b30d | 102 | |
0f113f3e | 103 | cd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data); |
8931b30d | 104 | |
0f113f3e | 105 | return cms; |
8931b30d | 106 | |
0f113f3e | 107 | err: |
8931b30d | 108 | |
0f113f3e MC |
109 | if (cms) |
110 | CMS_ContentInfo_free(cms); | |
8931b30d | 111 | |
0f113f3e MC |
112 | return NULL; |
113 | } | |
8931b30d DSH |
114 | |
115 | BIO *cms_CompressedData_init_bio(CMS_ContentInfo *cms) | |
0f113f3e MC |
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 | } | |
8931b30d DSH |
133 | |
134 | #endif |