1183234Ssimon/* crypto/cms/cms_io.c */
2183234Ssimon/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3183234Ssimon * project.
4183234Ssimon */
5183234Ssimon/* ====================================================================
6183234Ssimon * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
7183234Ssimon *
8183234Ssimon * Redistribution and use in source and binary forms, with or without
9183234Ssimon * modification, are permitted provided that the following conditions
10183234Ssimon * are met:
11183234Ssimon *
12183234Ssimon * 1. Redistributions of source code must retain the above copyright
13183234Ssimon *    notice, this list of conditions and the following disclaimer.
14183234Ssimon *
15183234Ssimon * 2. Redistributions in binary form must reproduce the above copyright
16183234Ssimon *    notice, this list of conditions and the following disclaimer in
17183234Ssimon *    the documentation and/or other materials provided with the
18183234Ssimon *    distribution.
19183234Ssimon *
20183234Ssimon * 3. All advertising materials mentioning features or use of this
21183234Ssimon *    software must display the following acknowledgment:
22183234Ssimon *    "This product includes software developed by the OpenSSL Project
23183234Ssimon *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24183234Ssimon *
25183234Ssimon * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26183234Ssimon *    endorse or promote products derived from this software without
27183234Ssimon *    prior written permission. For written permission, please contact
28183234Ssimon *    licensing@OpenSSL.org.
29183234Ssimon *
30183234Ssimon * 5. Products derived from this software may not be called "OpenSSL"
31183234Ssimon *    nor may "OpenSSL" appear in their names without prior written
32183234Ssimon *    permission of the OpenSSL Project.
33183234Ssimon *
34183234Ssimon * 6. Redistributions of any form whatsoever must retain the following
35183234Ssimon *    acknowledgment:
36183234Ssimon *    "This product includes software developed by the OpenSSL Project
37183234Ssimon *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38183234Ssimon *
39183234Ssimon * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40183234Ssimon * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41183234Ssimon * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42183234Ssimon * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43183234Ssimon * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44183234Ssimon * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45183234Ssimon * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46183234Ssimon * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47183234Ssimon * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48183234Ssimon * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49183234Ssimon * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50183234Ssimon * OF THE POSSIBILITY OF SUCH DAMAGE.
51183234Ssimon * ====================================================================
52183234Ssimon */
53183234Ssimon
54183234Ssimon#include <openssl/asn1t.h>
55183234Ssimon#include <openssl/x509.h>
56183234Ssimon#include <openssl/err.h>
57183234Ssimon#include <openssl/pem.h>
58183234Ssimon#include "cms.h"
59183234Ssimon#include "cms_lcl.h"
60183234Ssimon
61238405Sjkimint CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
62238405Sjkim	{
63238405Sjkim	ASN1_OCTET_STRING **pos;
64238405Sjkim	pos = CMS_get0_content(cms);
65238405Sjkim	if (!pos)
66238405Sjkim		return 0;
67238405Sjkim	if (!*pos)
68238405Sjkim		*pos = ASN1_OCTET_STRING_new();
69238405Sjkim	if (*pos)
70238405Sjkim		{
71238405Sjkim		(*pos)->flags |= ASN1_STRING_FLAG_NDEF;
72238405Sjkim		(*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
73238405Sjkim		*boundary = &(*pos)->data;
74238405Sjkim		return 1;
75238405Sjkim		}
76238405Sjkim	CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
77238405Sjkim	return 0;
78238405Sjkim	}
79238405Sjkim
80183234SsimonCMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
81183234Ssimon	{
82183234Ssimon	return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
83183234Ssimon	}
84183234Ssimon
85183234Ssimonint i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
86183234Ssimon	{
87183234Ssimon	return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
88183234Ssimon	}
89183234Ssimon
90183234SsimonIMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
91183234Ssimon
92238405SjkimBIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
93183234Ssimon	{
94238405Sjkim	return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
95238405Sjkim				ASN1_ITEM_rptr(CMS_ContentInfo));
96238405Sjkim	}
97183234Ssimon
98238405Sjkim/* CMS wrappers round generalised stream and MIME routines */
99183234Ssimon
100238405Sjkimint i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
101238405Sjkim	{
102238405Sjkim	return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
103238405Sjkim					ASN1_ITEM_rptr(CMS_ContentInfo));
104238405Sjkim	}
105183234Ssimon
106238405Sjkimint PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
107238405Sjkim	{
108238405Sjkim	return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *) cms, in, flags,
109238405Sjkim					"CMS",
110238405Sjkim					ASN1_ITEM_rptr(CMS_ContentInfo));
111183234Ssimon	}
112183234Ssimon
113183234Ssimonint SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
114183234Ssimon	{
115183234Ssimon	STACK_OF(X509_ALGOR) *mdalgs;
116183234Ssimon	int ctype_nid = OBJ_obj2nid(cms->contentType);
117183234Ssimon	int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
118183234Ssimon	if (ctype_nid == NID_pkcs7_signed)
119183234Ssimon		mdalgs = cms->d.signedData->digestAlgorithms;
120183234Ssimon	else
121183234Ssimon		mdalgs = NULL;
122183234Ssimon
123238405Sjkim	return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
124183234Ssimon					ctype_nid, econt_nid, mdalgs,
125183234Ssimon					ASN1_ITEM_rptr(CMS_ContentInfo));
126183234Ssimon	}
127183234Ssimon
128183234SsimonCMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
129183234Ssimon	{
130183234Ssimon	return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
131183234Ssimon					ASN1_ITEM_rptr(CMS_ContentInfo));
132183234Ssimon	}
133238405Sjkim
134