1 /*
2 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <openssl/asn1t.h>
11 #include <openssl/x509.h>
12 #include <openssl/err.h>
13 #include <openssl/pem.h>
14 #include <openssl/cms.h>
15 #include "cms_local.h"
16
CMS_stream(unsigned char *** boundary,CMS_ContentInfo * cms)17 int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
18 {
19 ASN1_OCTET_STRING **pos;
20 pos = CMS_get0_content(cms);
21 if (pos == NULL)
22 return 0;
23 if (*pos == NULL)
24 *pos = ASN1_OCTET_STRING_new();
25 if (*pos != NULL) {
26 (*pos)->flags |= ASN1_STRING_FLAG_NDEF;
27 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
28 *boundary = &(*pos)->data;
29 return 1;
30 }
31 CMSerr(CMS_F_CMS_STREAM, ERR_R_MALLOC_FAILURE);
32 return 0;
33 }
34
d2i_CMS_bio(BIO * bp,CMS_ContentInfo ** cms)35 CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
36 {
37 return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
38 }
39
i2d_CMS_bio(BIO * bp,CMS_ContentInfo * cms)40 int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
41 {
42 return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
43 }
44
IMPLEMENT_PEM_rw_const(CMS,CMS_ContentInfo,PEM_STRING_CMS,CMS_ContentInfo)45 IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
46
47 BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
48 {
49 return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
50 ASN1_ITEM_rptr(CMS_ContentInfo));
51 }
52
53 /* CMS wrappers round generalised stream and MIME routines */
54
i2d_CMS_bio_stream(BIO * out,CMS_ContentInfo * cms,BIO * in,int flags)55 int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
56 {
57 return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
58 ASN1_ITEM_rptr(CMS_ContentInfo));
59 }
60
PEM_write_bio_CMS_stream(BIO * out,CMS_ContentInfo * cms,BIO * in,int flags)61 int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
62 int flags)
63 {
64 return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
65 "CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
66 }
67
SMIME_write_CMS(BIO * bio,CMS_ContentInfo * cms,BIO * data,int flags)68 int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
69 {
70 STACK_OF(X509_ALGOR) *mdalgs;
71 int ctype_nid = OBJ_obj2nid(cms->contentType);
72 int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
73 if (ctype_nid == NID_pkcs7_signed)
74 mdalgs = cms->d.signedData->digestAlgorithms;
75 else
76 mdalgs = NULL;
77
78 return SMIME_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags,
79 ctype_nid, econt_nid, mdalgs,
80 ASN1_ITEM_rptr(CMS_ContentInfo));
81 }
82
SMIME_read_CMS(BIO * bio,BIO ** bcont)83 CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
84 {
85 return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont,
86 ASN1_ITEM_rptr
87 (CMS_ContentInfo));
88 }
89