Line data    Source code

       1             : /* crypto/cms/cms_io.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 <openssl/asn1t.h>
      56             : #include <openssl/x509.h>
      57             : #include <openssl/err.h>
      58             : #include <openssl/pem.h>
      59             : #include "cms.h"
      60             : #include "cms_lcl.h"
      61             : 
      62           0 : int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
      63             : {
      64             :     ASN1_OCTET_STRING **pos;
      65           0 :     pos = CMS_get0_content(cms);
      66           0 :     if (!pos)
      67             :         return 0;
      68           0 :     if (!*pos)
      69           0 :         *pos = ASN1_OCTET_STRING_new();
      70           0 :     if (*pos) {
      71           0 :         (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
      72           0 :         (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
      73           0 :         *boundary = &(*pos)->data;
      74           0 :         return 1;
      75             :     }
      76           0 :     CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
      77           0 :     return 0;
      78             : }
      79             : 
      80           0 : CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
      81             : {
      82           0 :     return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
      83             : }
      84             : 
      85           0 : int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
      86             : {
      87           0 :     return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
      88             : }
      89             : 
      90           0 : IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
      91             : 
      92           0 : BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
      93             : {
      94           0 :     return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
      95             :                         ASN1_ITEM_rptr(CMS_ContentInfo));
      96             : }
      97             : 
      98             : /* CMS wrappers round generalised stream and MIME routines */
      99             : 
     100           0 : int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
     101             : {
     102           0 :     return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
     103             :                                ASN1_ITEM_rptr(CMS_ContentInfo));
     104             : }
     105             : 
     106           0 : int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
     107             :                              int flags)
     108             : {
     109           0 :     return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
     110             :                                      "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
     111             : }
     112             : 
     113           0 : int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
     114             : {
     115             :     STACK_OF(X509_ALGOR) *mdalgs;
     116           0 :     int ctype_nid = OBJ_obj2nid(cms->contentType);
     117           0 :     int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
     118           0 :     if (ctype_nid == NID_pkcs7_signed)
     119           0 :         mdalgs = cms->d.signedData->digestAlgorithms;
     120             :     else
     121             :         mdalgs = NULL;
     122             : 
     123           0 :     return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
     124             :                             ctype_nid, econt_nid, mdalgs,
     125             :                             ASN1_ITEM_rptr(CMS_ContentInfo));
     126             : }
     127             : 
     128           0 : CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
     129             : {
     130           0 :     return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
     131             :                                               ASN1_ITEM_rptr
     132             :                                               (CMS_ContentInfo));
     133             : }