| 1 | /*
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| 2 | * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <openssl/asn1t.h>
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| 11 | #include <openssl/x509.h>
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| 12 | #include <openssl/err.h>
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| 13 | #include <openssl/pem.h>
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| 14 | #include <openssl/cms.h>
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| 15 | #include "cms_local.h"
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| 16 |
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| 17 | int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
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| 18 | {
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| 19 | ASN1_OCTET_STRING **pos;
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| 20 | pos = CMS_get0_content(cms);
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| 21 | if (pos == NULL)
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| 22 | return 0;
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| 23 | if (*pos == NULL)
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| 24 | *pos = ASN1_OCTET_STRING_new();
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| 25 | if (*pos != NULL) {
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| 26 | (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
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| 27 | (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
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| 28 | *boundary = &(*pos)->data;
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| 29 | return 1;
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| 30 | }
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| 31 | CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
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| 32 | return 0;
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| 33 | }
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| 34 |
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| 35 | CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
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| 36 | {
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| 37 | return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
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| 38 | }
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| 39 |
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| 40 | int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
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| 41 | {
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| 42 | return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
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| 43 | }
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| 44 |
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| 45 | IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
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| 46 |
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| 47 | BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
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| 48 | {
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| 49 | return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
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| 50 | ASN1_ITEM_rptr(CMS_ContentInfo));
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| 51 | }
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| 52 |
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| 53 | /* CMS wrappers round generalised stream and MIME routines */
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| 54 |
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| 55 | int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
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| 56 | {
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| 57 | return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
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| 58 | ASN1_ITEM_rptr(CMS_ContentInfo));
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| 59 | }
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| 60 |
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| 61 | int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
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| 62 | int flags)
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| 63 | {
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| 64 | return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
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| 65 | "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
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| 66 | }
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| 67 |
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| 68 | int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
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| 69 | {
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| 70 | STACK_OF(X509_ALGOR) *mdalgs;
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| 71 | int ctype_nid = OBJ_obj2nid(cms->contentType);
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| 72 | int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
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| 73 | if (ctype_nid == NID_pkcs7_signed)
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| 74 | mdalgs = cms->d.signedData->digestAlgorithms;
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| 75 | else
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| 76 | mdalgs = NULL;
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| 77 |
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| 78 | return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
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| 79 | ctype_nid, econt_nid, mdalgs,
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| 80 | ASN1_ITEM_rptr(CMS_ContentInfo));
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| 81 | }
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| 82 |
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| 83 | CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
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| 84 | {
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| 85 | return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
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| 86 | ASN1_ITEM_rptr
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| 87 | (CMS_ContentInfo));
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| 88 | }
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