1 /* crypto/cms/cms_io.c */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 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 13 * notice, this list of conditions and the following disclaimer. 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 54 #include <openssl/asn1t.h> 55 #include <openssl/x509.h> 56 #include <openssl/err.h> 57 #include <openssl/pem.h> 58 #include "cms.h" 59 #include "cms_lcl.h" 60 61 int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms) 62 { 63 ASN1_OCTET_STRING **pos; 64 pos = CMS_get0_content(cms); 65 if (!pos) 66 return 0; 67 if (!*pos) 68 *pos = ASN1_OCTET_STRING_new(); 69 if (*pos) 70 { 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 80 CMS_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 85 int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms) 86 { 87 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); 88 } 89 90 IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo) 91 92 BIO *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 */ 99 100 int 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 } 105 106 int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags) 107 { 108 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *) cms, in, flags, 109 "CMS", 110 ASN1_ITEM_rptr(CMS_ContentInfo)); 111 } 112 113 int 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 } 127 128 CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont) 129 { 130 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont, 131 ASN1_ITEM_rptr(CMS_ContentInfo)); 132 } 133 134