v3_bcons.c revision 167613 
1/* v3_bcons.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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
67static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist);
68static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
69
70const X509V3_EXT_METHOD v3_bcons = {
71NID_basic_constraints, 0,
72ASN1_ITEM_ref(BASIC_CONSTRAINTS),
730,0,0,0,
740,0,
75(X509V3_EXT_I2V)i2v_BASIC_CONSTRAINTS,
76(X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
77NULL,NULL,
78NULL
79};
80
81ASN1_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
86IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)
87
88
89static 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
97static 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}
124
125