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0f113f3e MC |
1 | /* |
2 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
8931b30d DSH |
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 | |
0f113f3e | 13 | * notice, this list of conditions and the following disclaimer. |
8931b30d DSH |
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 | ||
b39fc560 | 54 | #include "internal/cryptlib.h" |
8931b30d DSH |
55 | #include <openssl/asn1t.h> |
56 | #include <openssl/pem.h> | |
57 | #include <openssl/x509v3.h> | |
58 | #include <openssl/err.h> | |
59 | #include <openssl/cms.h> | |
60 | #include <openssl/bio.h> | |
1703627b | 61 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 62 | # include <openssl/comp.h> |
1703627b | 63 | #endif |
8931b30d | 64 | #include "cms_lcl.h" |
8931b30d | 65 | |
8931b30d DSH |
66 | #ifdef ZLIB |
67 | ||
68 | /* CMS CompressedData Utilities */ | |
69 | ||
70 | CMS_ContentInfo *cms_CompressedData_create(int comp_nid) | |
0f113f3e MC |
71 | { |
72 | CMS_ContentInfo *cms; | |
73 | CMS_CompressedData *cd; | |
74 | /* | |
75 | * Will need something cleverer if there is ever more than one | |
76 | * compression algorithm or parameters have some meaning... | |
77 | */ | |
78 | if (comp_nid != NID_zlib_compression) { | |
79 | CMSerr(CMS_F_CMS_COMPRESSEDDATA_CREATE, | |
80 | CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); | |
81 | return NULL; | |
82 | } | |
83 | cms = CMS_ContentInfo_new(); | |
90945fa3 | 84 | if (cms == NULL) |
0f113f3e | 85 | return NULL; |
8931b30d | 86 | |
0f113f3e | 87 | cd = M_ASN1_new_of(CMS_CompressedData); |
8931b30d | 88 | |
90945fa3 | 89 | if (cd == NULL) |
0f113f3e | 90 | goto err; |
8931b30d | 91 | |
0f113f3e MC |
92 | cms->contentType = OBJ_nid2obj(NID_id_smime_ct_compressedData); |
93 | cms->d.compressedData = cd; | |
8931b30d | 94 | |
0f113f3e | 95 | cd->version = 0; |
8931b30d | 96 | |
0f113f3e MC |
97 | X509_ALGOR_set0(cd->compressionAlgorithm, |
98 | OBJ_nid2obj(NID_zlib_compression), V_ASN1_UNDEF, NULL); | |
8931b30d | 99 | |
0f113f3e | 100 | cd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data); |
8931b30d | 101 | |
0f113f3e | 102 | return cms; |
8931b30d | 103 | |
0f113f3e | 104 | err: |
25aaa98a | 105 | CMS_ContentInfo_free(cms); |
0f113f3e MC |
106 | return NULL; |
107 | } | |
8931b30d DSH |
108 | |
109 | BIO *cms_CompressedData_init_bio(CMS_ContentInfo *cms) | |
0f113f3e MC |
110 | { |
111 | CMS_CompressedData *cd; | |
112 | ASN1_OBJECT *compoid; | |
113 | if (OBJ_obj2nid(cms->contentType) != NID_id_smime_ct_compressedData) { | |
114 | CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO, | |
115 | CMS_R_CONTENT_TYPE_NOT_COMPRESSED_DATA); | |
116 | return NULL; | |
117 | } | |
118 | cd = cms->d.compressedData; | |
119 | X509_ALGOR_get0(&compoid, NULL, NULL, cd->compressionAlgorithm); | |
120 | if (OBJ_obj2nid(compoid) != NID_zlib_compression) { | |
121 | CMSerr(CMS_F_CMS_COMPRESSEDDATA_INIT_BIO, | |
122 | CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); | |
123 | return NULL; | |
124 | } | |
125 | return BIO_new(BIO_f_zlib()); | |
126 | } | |
8931b30d DSH |
127 | |
128 | #endif |