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diff --git a/src/lib/libcrypto/asn1/x_req.c b/src/lib/libcrypto/asn1/x_req.c
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1/* $OpenBSD: x_req.c,v 1.15 2015/02/11 04:00:39 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60
61#include <openssl/asn1t.h>
62#include <openssl/x509.h>
63
64/* X509_REQ_INFO is handled in an unusual way to get round
65 * invalid encodings. Some broken certificate requests don't
66 * encode the attributes field if it is empty. This is in
67 * violation of PKCS#10 but we need to tolerate it. We do
68 * this by making the attributes field OPTIONAL then using
69 * the callback to initialise it to an empty STACK.
70 *
71 * This means that the field will be correctly encoded unless
72 * we NULL out the field.
73 *
74 * As a result we no longer need the req_kludge field because
75 * the information is now contained in the attributes field:
76 * 1. If it is NULL then it's the invalid omission.
77 * 2. If it is empty it is the correct encoding.
78 * 3. If it is not empty then some attributes are present.
79 *
80 */
81
82static int
83rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
84{
85 X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
86
87 if (operation == ASN1_OP_NEW_POST) {
88 rinf->attributes = sk_X509_ATTRIBUTE_new_null();
89 if (!rinf->attributes)
90 return 0;
91 }
92 return 1;
93}
94
95static const ASN1_AUX X509_REQ_INFO_aux = {
96 .flags = ASN1_AFLG_ENCODING,
97 .asn1_cb = rinf_cb,
98 .enc_offset = offsetof(X509_REQ_INFO, enc),
99};
100static const ASN1_TEMPLATE X509_REQ_INFO_seq_tt[] = {
101 {
102 .offset = offsetof(X509_REQ_INFO, version),
103 .field_name = "version",
104 .item = &ASN1_INTEGER_it,
105 },
106 {
107 .offset = offsetof(X509_REQ_INFO, subject),
108 .field_name = "subject",
109 .item = &X509_NAME_it,
110 },
111 {
112 .offset = offsetof(X509_REQ_INFO, pubkey),
113 .field_name = "pubkey",
114 .item = &X509_PUBKEY_it,
115 },
116 /* This isn't really OPTIONAL but it gets round invalid
117 * encodings
118 */
119 {
120 .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL,
121 .offset = offsetof(X509_REQ_INFO, attributes),
122 .field_name = "attributes",
123 .item = &X509_ATTRIBUTE_it,
124 },
125};
126
127const ASN1_ITEM X509_REQ_INFO_it = {
128 .itype = ASN1_ITYPE_SEQUENCE,
129 .utype = V_ASN1_SEQUENCE,
130 .templates = X509_REQ_INFO_seq_tt,
131 .tcount = sizeof(X509_REQ_INFO_seq_tt) / sizeof(ASN1_TEMPLATE),
132 .funcs = &X509_REQ_INFO_aux,
133 .size = sizeof(X509_REQ_INFO),
134 .sname = "X509_REQ_INFO",
135};
136
137
138X509_REQ_INFO *
139d2i_X509_REQ_INFO(X509_REQ_INFO **a, const unsigned char **in, long len)
140{
141 return (X509_REQ_INFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
142 &X509_REQ_INFO_it);
143}
144
145int
146i2d_X509_REQ_INFO(X509_REQ_INFO *a, unsigned char **out)
147{
148 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_REQ_INFO_it);
149}
150
151X509_REQ_INFO *
152X509_REQ_INFO_new(void)
153{
154 return (X509_REQ_INFO *)ASN1_item_new(&X509_REQ_INFO_it);
155}
156
157void
158X509_REQ_INFO_free(X509_REQ_INFO *a)
159{
160 ASN1_item_free((ASN1_VALUE *)a, &X509_REQ_INFO_it);
161}
162
163static const ASN1_AUX X509_REQ_aux = {
164 .app_data = NULL,
165 .flags = ASN1_AFLG_REFCOUNT,
166 .ref_offset = offsetof(X509_REQ, references),
167 .ref_lock = CRYPTO_LOCK_X509_REQ,
168};
169static const ASN1_TEMPLATE X509_REQ_seq_tt[] = {
170 {
171 .offset = offsetof(X509_REQ, req_info),
172 .field_name = "req_info",
173 .item = &X509_REQ_INFO_it,
174 },
175 {
176 .offset = offsetof(X509_REQ, sig_alg),
177 .field_name = "sig_alg",
178 .item = &X509_ALGOR_it,
179 },
180 {
181 .offset = offsetof(X509_REQ, signature),
182 .field_name = "signature",
183 .item = &ASN1_BIT_STRING_it,
184 },
185};
186
187const ASN1_ITEM X509_REQ_it = {
188 .itype = ASN1_ITYPE_SEQUENCE,
189 .utype = V_ASN1_SEQUENCE,
190 .templates = X509_REQ_seq_tt,
191 .tcount = sizeof(X509_REQ_seq_tt) / sizeof(ASN1_TEMPLATE),
192 .funcs = &X509_REQ_aux,
193 .size = sizeof(X509_REQ),
194 .sname = "X509_REQ",
195};
196
197
198X509_REQ *
199d2i_X509_REQ(X509_REQ **a, const unsigned char **in, long len)
200{
201 return (X509_REQ *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
202 &X509_REQ_it);
203}
204
205int
206i2d_X509_REQ(X509_REQ *a, unsigned char **out)
207{
208 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_REQ_it);
209}
210
211X509_REQ *
212X509_REQ_new(void)
213{
214 return (X509_REQ *)ASN1_item_new(&X509_REQ_it);
215}
216
217void
218X509_REQ_free(X509_REQ *a)
219{
220 ASN1_item_free((ASN1_VALUE *)a, &X509_REQ_it);
221}
222
223X509_REQ *
224X509_REQ_dup(X509_REQ *x)
225{
226 return ASN1_item_dup(&X509_REQ_it, x);
227}
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