1 /* v3_bcons.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 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 * 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
60 #include <stdio.h>
61 #include "cryptlib.h"
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/conf.h>
65 #include <openssl/x509v3.h>
66
67 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist);
68 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
69
70 const X509V3_EXT_METHOD v3_bcons = {
71 NID_basic_constraints, 0,
72 ASN1_ITEM_ref(BASIC_CONSTRAINTS),
73 0,0,0,0,
74 0,0,
75 (X509V3_EXT_I2V)i2v_BASIC_CONSTRAINTS,
76 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
77 NULL,NULL,
78 NULL
79 };
80
81 ASN1_SEQUENCE(BASIC_CONSTRAINTS) = {
82 ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN),
83 ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER)
84 } ASN1_SEQUENCE_END(BASIC_CONSTRAINTS)
85
86 IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)
87
88
89 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
90 BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist)
91 {
92 X509V3_add_value_bool("CA", bcons->ca, &extlist);
93 X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
94 return extlist;
95 }
96
97 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
98 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
99 {
100 BASIC_CONSTRAINTS *bcons=NULL;
101 CONF_VALUE *val;
102 int i;
103 if(!(bcons = BASIC_CONSTRAINTS_new())) {
104 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
105 return NULL;
106 }
107 for(i = 0; i < sk_CONF_VALUE_num(values); i++) {
108 val = sk_CONF_VALUE_value(values, i);
109 if(!strcmp(val->name, "CA")) {
110 if(!X509V3_get_value_bool(val, &bcons->ca)) goto err;
111 } else if(!strcmp(val->name, "pathlen")) {
112 if(!X509V3_get_value_int(val, &bcons->pathlen)) goto err;
113 } else {
114 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, X509V3_R_INVALID_NAME);
115 X509V3_conf_err(val);
116 goto err;
117 }
118 }
119 return bcons;
120 err:
121 BASIC_CONSTRAINTS_free(bcons);
122 return NULL;
123 }