1 /* $OpenBSD: x_exten.c,v 1.17 2021/11/01 20:53:08 tb 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_lcl.h"
65 
66 static 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 
85 const 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 
94 static 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 
102 const 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 
113 X509_EXTENSION *
114 d2i_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 }
119 
120 int
121 i2d_X509_EXTENSION(X509_EXTENSION *a, unsigned char **out)
122 {
123 	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_EXTENSION_it);
124 }
125 
126 X509_EXTENSION *
127 X509_EXTENSION_new(void)
128 {
129 	return (X509_EXTENSION *)ASN1_item_new(&X509_EXTENSION_it);
130 }
131 
132 void
133 X509_EXTENSION_free(X509_EXTENSION *a)
134 {
135 	ASN1_item_free((ASN1_VALUE *)a, &X509_EXTENSION_it);
136 }
137 
138 X509_EXTENSIONS *
139 d2i_X509_EXTENSIONS(X509_EXTENSIONS **a, const unsigned char **in, long len)
140 {
141 	return (X509_EXTENSIONS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
142 	    &X509_EXTENSIONS_it);
143 }
144 
145 int
146 i2d_X509_EXTENSIONS(X509_EXTENSIONS *a, unsigned char **out)
147 {
148 	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_EXTENSIONS_it);
149 }
150 
151 X509_EXTENSION *
152 X509_EXTENSION_dup(X509_EXTENSION *x)
153 {
154 	return ASN1_item_dup(&X509_EXTENSION_it, x);
155 }
156