1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57#include <stdio.h>
58
59#include <openssl/asn1t.h>
60#include <openssl/thread.h>
61#include <openssl/x509.h>
62
63/*
64 * X509_REQ_INFO is handled in an unusual way to get round invalid encodings.
65 * Some broken certificate requests don't encode the attributes field if it
66 * is empty. This is in violation of PKCS#10 but we need to tolerate it. We
67 * do this by making the attributes field OPTIONAL then using the callback to
68 * initialise it to an empty STACK. This means that the field will be
69 * correctly encoded unless we NULL out the field. As a result we no longer
70 * need the req_kludge field because the information is now contained in the
71 * attributes field: 1. If it is NULL then it's the invalid omission. 2. If
72 * it is empty it is the correct encoding. 3. If it is not empty then some
73 * attributes are present.
74 */
75
76static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
77 void *exarg)
78{
79 X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
80
81 if (operation == ASN1_OP_NEW_POST) {
82 rinf->attributes = sk_X509_ATTRIBUTE_new_null();
83 if (!rinf->attributes)
84 return 0;
85 }
86 return 1;
87}
88
89ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = {
90 ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER),
91 ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME),
92 ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY),
93 /* This isn't really OPTIONAL but it gets round invalid
94 * encodings
95 */
96 ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0)
97} ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO)
98
99IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO)
100
101ASN1_SEQUENCE_ref(X509_REQ, 0) = {
102 ASN1_SIMPLE(X509_REQ, req_info, X509_REQ_INFO),
103 ASN1_SIMPLE(X509_REQ, sig_alg, X509_ALGOR),
104 ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING)
105} ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ)
106
107IMPLEMENT_ASN1_FUNCTIONS(X509_REQ)
108
109IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ)
110