crypto/cms/cms_cd.c

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