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 62int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms) 63{ 64 ASN1_OCTET_STRING **pos; 65 pos = CMS_get0_content(cms); 66 if (!pos) 67 return 0; 68 if (!*pos) 69 *pos = ASN1_OCTET_STRING_new(); 70 if (*pos) { 71 (*pos)->flags |= ASN1_STRING_FLAG_NDEF; 72 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT; 73 *boundary = &(*pos)->data; 74 return 1; 75 } 76 CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE); 77 return 0; 78} 79 80CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms) 81{ 82 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); 83} 84 85int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms) 86{ 87 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); 88} 89 90IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo) 91 92BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms) 93{ 94 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 100int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags) 101{ 102 return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags, 103 ASN1_ITEM_rptr(CMS_ContentInfo)); 104} 105 106int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, 107 int flags) 108{ 109 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags, 110 "CMS", ASN1_ITEM_rptr(CMS_ContentInfo)); 111} 112 113int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags) 114{ 115 STACK_OF(X509_ALGOR) *mdalgs; 116 int ctype_nid = OBJ_obj2nid(cms->contentType); 117 int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms)); 118 if (ctype_nid == NID_pkcs7_signed) 119 mdalgs = cms->d.signedData->digestAlgorithms; 120 else 121 mdalgs = NULL; 122 123 return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags, 124 ctype_nid, econt_nid, mdalgs, 125 ASN1_ITEM_rptr(CMS_ContentInfo)); 126} 127 128CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont) 129{ 130 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont, 131 ASN1_ITEM_rptr 132 (CMS_ContentInfo)); 133} 134