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94b2c29f | 1 | /* crypto/cms/cms_io.c */ |
40720ce3 MC |
2 | /* |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
94b2c29f DSH |
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 | |
40720ce3 | 14 | * notice, this list of conditions and the following disclaimer. |
94b2c29f DSH |
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 | ||
62 | CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms) | |
40720ce3 MC |
63 | { |
64 | return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); | |
65 | } | |
94b2c29f DSH |
66 | |
67 | int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms) | |
40720ce3 MC |
68 | { |
69 | return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); | |
70 | } | |
94b2c29f DSH |
71 | |
72 | IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo) | |
73 | ||
74 | /* Callback for int_smime_write_ASN1 */ | |
94b2c29f | 75 | static int cms_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags, |
40720ce3 MC |
76 | const ASN1_ITEM *it) |
77 | { | |
78 | CMS_ContentInfo *cms = (CMS_ContentInfo *)val; | |
79 | BIO *tmpbio, *cmsbio; | |
80 | int r = 0; | |
94b2c29f | 81 | |
40720ce3 MC |
82 | if (!(flags & SMIME_DETACHED)) { |
83 | SMIME_crlf_copy(data, out, flags); | |
84 | return 1; | |
85 | } | |
94b2c29f | 86 | |
40720ce3 | 87 | /* Let CMS code prepend any needed BIOs */ |
94b2c29f | 88 | |
40720ce3 | 89 | cmsbio = CMS_dataInit(cms, out); |
94b2c29f | 90 | |
40720ce3 MC |
91 | if (!cmsbio) |
92 | return 0; | |
94b2c29f | 93 | |
40720ce3 MC |
94 | /* Copy data across, passing through filter BIOs for processing */ |
95 | SMIME_crlf_copy(data, cmsbio, flags); | |
94b2c29f | 96 | |
40720ce3 MC |
97 | /* Finalize structure */ |
98 | if (CMS_dataFinal(cms, cmsbio) <= 0) | |
99 | goto err; | |
94b2c29f | 100 | |
40720ce3 | 101 | r = 1; |
94b2c29f | 102 | |
40720ce3 | 103 | err: |
94b2c29f | 104 | |
40720ce3 | 105 | /* Now remove any digests prepended to the BIO */ |
94b2c29f | 106 | |
40720ce3 MC |
107 | while (cmsbio != out) { |
108 | tmpbio = BIO_pop(cmsbio); | |
109 | BIO_free(cmsbio); | |
110 | cmsbio = tmpbio; | |
111 | } | |
94b2c29f | 112 | |
40720ce3 | 113 | return r; |
94b2c29f | 114 | |
40720ce3 | 115 | } |
94b2c29f DSH |
116 | |
117 | int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags) | |
40720ce3 MC |
118 | { |
119 | STACK_OF(X509_ALGOR) *mdalgs; | |
120 | int ctype_nid = OBJ_obj2nid(cms->contentType); | |
121 | int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms)); | |
122 | if (ctype_nid == NID_pkcs7_signed) | |
123 | mdalgs = cms->d.signedData->digestAlgorithms; | |
124 | else | |
125 | mdalgs = NULL; | |
126 | ||
127 | return int_smime_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags, | |
128 | ctype_nid, econt_nid, mdalgs, | |
129 | cms_output_data, | |
130 | ASN1_ITEM_rptr(CMS_ContentInfo)); | |
131 | } | |
94b2c29f DSH |
132 | |
133 | CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont) | |
40720ce3 MC |
134 | { |
135 | return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont, | |
136 | ASN1_ITEM_rptr | |
137 | (CMS_ContentInfo)); | |
138 | } |