1 /*
2 * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL project
3 * 1999.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999 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 * [email protected].
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 * ([email protected]). This product includes software written by Tim
55 * Hudson ([email protected]). */
56
57 #include <stdio.h>
58 #include <string.h>
59
60 #include <openssl/asn1.h>
61 #include <openssl/asn1t.h>
62 #include <openssl/conf.h>
63 #include <openssl/err.h>
64 #include <openssl/obj.h>
65 #include <openssl/x509.h>
66
67 #include "internal.h"
68
69
70 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(
71 const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *extlist);
72 static void *v2i_BASIC_CONSTRAINTS(const X509V3_EXT_METHOD *method,
73 const X509V3_CTX *ctx,
74 const STACK_OF(CONF_VALUE) *values);
75
76 const X509V3_EXT_METHOD v3_bcons = {
77 NID_basic_constraints,
78 0,
79 ASN1_ITEM_ref(BASIC_CONSTRAINTS),
80 0,
81 0,
82 0,
83 0,
84 0,
85 0,
86 i2v_BASIC_CONSTRAINTS,
87 v2i_BASIC_CONSTRAINTS,
88 NULL,
89 NULL,
90 NULL,
91 };
92
93 ASN1_SEQUENCE(BASIC_CONSTRAINTS) = {
94 ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN),
95 ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER),
96 } ASN1_SEQUENCE_END(BASIC_CONSTRAINTS)
97
98 IMPLEMENT_ASN1_FUNCTIONS_const(BASIC_CONSTRAINTS)
99
100 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(
101 const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *extlist) {
102 const BASIC_CONSTRAINTS *bcons = ext;
103 X509V3_add_value_bool("CA", bcons->ca, &extlist);
104 X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
105 return extlist;
106 }
107
v2i_BASIC_CONSTRAINTS(const X509V3_EXT_METHOD * method,const X509V3_CTX * ctx,const STACK_OF (CONF_VALUE)* values)108 static void *v2i_BASIC_CONSTRAINTS(const X509V3_EXT_METHOD *method,
109 const X509V3_CTX *ctx,
110 const STACK_OF(CONF_VALUE) *values) {
111 BASIC_CONSTRAINTS *bcons = NULL;
112 if (!(bcons = BASIC_CONSTRAINTS_new())) {
113 return NULL;
114 }
115 for (size_t i = 0; i < sk_CONF_VALUE_num(values); i++) {
116 const CONF_VALUE *val = sk_CONF_VALUE_value(values, i);
117 if (!strcmp(val->name, "CA")) {
118 if (!X509V3_get_value_bool(val, &bcons->ca)) {
119 goto err;
120 }
121 } else if (!strcmp(val->name, "pathlen")) {
122 if (!X509V3_get_value_int(val, &bcons->pathlen)) {
123 goto err;
124 }
125 } else {
126 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NAME);
127 X509V3_conf_err(val);
128 goto err;
129 }
130 }
131 return bcons;
132 err:
133 BASIC_CONSTRAINTS_free(bcons);
134 return NULL;
135 }
136