1/* $OpenBSD: x_exten.c,v 1.21 2024/04/09 13:55:02 beck Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2000.
4 */
5/* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 *    software must display the following acknowledgment:
22 *    "This product includes software developed by the OpenSSL Project
23 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 *    endorse or promote products derived from this software without
27 *    prior written permission. For written permission, please contact
28 *    licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 *    nor may "OpenSSL" appear in their names without prior written
32 *    permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 *    acknowledgment:
36 *    "This product includes software developed by the OpenSSL Project
37 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com).  This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <stddef.h>
60#include <openssl/x509.h>
61#include <openssl/asn1.h>
62#include <openssl/asn1t.h>
63
64#include "x509_local.h"
65
66static const ASN1_TEMPLATE X509_EXTENSION_seq_tt[] = {
67	{
68		.offset = offsetof(X509_EXTENSION, object),
69		.field_name = "object",
70		.item = &ASN1_OBJECT_it,
71	},
72	{
73		.flags = ASN1_TFLG_OPTIONAL,
74		.offset = offsetof(X509_EXTENSION, critical),
75		.field_name = "critical",
76		.item = &ASN1_BOOLEAN_it,
77	},
78	{
79		.offset = offsetof(X509_EXTENSION, value),
80		.field_name = "value",
81		.item = &ASN1_OCTET_STRING_it,
82	},
83};
84
85const ASN1_ITEM X509_EXTENSION_it = {
86	.itype = ASN1_ITYPE_SEQUENCE,
87	.utype = V_ASN1_SEQUENCE,
88	.templates = X509_EXTENSION_seq_tt,
89	.tcount = sizeof(X509_EXTENSION_seq_tt) / sizeof(ASN1_TEMPLATE),
90	.size = sizeof(X509_EXTENSION),
91	.sname = "X509_EXTENSION",
92};
93
94static const ASN1_TEMPLATE X509_EXTENSIONS_item_tt = {
95	.flags = ASN1_TFLG_SEQUENCE_OF,
96	.tag = 0,
97	.offset = 0,
98	.field_name = "Extension",
99	.item = &X509_EXTENSION_it,
100};
101
102const ASN1_ITEM X509_EXTENSIONS_it = {
103	.itype = ASN1_ITYPE_PRIMITIVE,
104	.utype = -1,
105	.templates = &X509_EXTENSIONS_item_tt,
106	.tcount = 0,
107	.funcs = NULL,
108	.size = 0,
109	.sname = "X509_EXTENSIONS",
110};
111
112
113X509_EXTENSION *
114d2i_X509_EXTENSION(X509_EXTENSION **a, const unsigned char **in, long len)
115{
116	return (X509_EXTENSION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
117	    &X509_EXTENSION_it);
118}
119LCRYPTO_ALIAS(d2i_X509_EXTENSION);
120
121int
122i2d_X509_EXTENSION(X509_EXTENSION *a, unsigned char **out)
123{
124	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_EXTENSION_it);
125}
126LCRYPTO_ALIAS(i2d_X509_EXTENSION);
127
128X509_EXTENSION *
129X509_EXTENSION_new(void)
130{
131	return (X509_EXTENSION *)ASN1_item_new(&X509_EXTENSION_it);
132}
133LCRYPTO_ALIAS(X509_EXTENSION_new);
134
135void
136X509_EXTENSION_free(X509_EXTENSION *a)
137{
138	ASN1_item_free((ASN1_VALUE *)a, &X509_EXTENSION_it);
139}
140LCRYPTO_ALIAS(X509_EXTENSION_free);
141
142X509_EXTENSIONS *
143d2i_X509_EXTENSIONS(X509_EXTENSIONS **a, const unsigned char **in, long len)
144{
145	return (X509_EXTENSIONS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
146	    &X509_EXTENSIONS_it);
147}
148LCRYPTO_ALIAS(d2i_X509_EXTENSIONS);
149
150int
151i2d_X509_EXTENSIONS(X509_EXTENSIONS *a, unsigned char **out)
152{
153	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_EXTENSIONS_it);
154}
155LCRYPTO_ALIAS(i2d_X509_EXTENSIONS);
156
157X509_EXTENSION *
158X509_EXTENSION_dup(X509_EXTENSION *x)
159{
160	return ASN1_item_dup(&X509_EXTENSION_it, x);
161}
162LCRYPTO_ALIAS(X509_EXTENSION_dup);
163