v3_extku.c revision 296465 
1/* v3_extku.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 1999.
5 */
6/* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/asn1t.h>
63#include <openssl/conf.h>
64#include <openssl/x509v3.h>
65
66static void *v2i_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
67                                    X509V3_CTX *ctx,
68                                    STACK_OF(CONF_VALUE) *nval);
69static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
70                                                    void *eku,
71                                                    STACK_OF(CONF_VALUE)
72                                                    *extlist);
73
74const X509V3_EXT_METHOD v3_ext_ku = {
75    NID_ext_key_usage, 0,
76    ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
77    0, 0, 0, 0,
78    0, 0,
79    i2v_EXTENDED_KEY_USAGE,
80    v2i_EXTENDED_KEY_USAGE,
81    0, 0,
82    NULL
83};
84
85/* NB OCSP acceptable responses also is a SEQUENCE OF OBJECT */
86const X509V3_EXT_METHOD v3_ocsp_accresp = {
87    NID_id_pkix_OCSP_acceptableResponses, 0,
88    ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
89    0, 0, 0, 0,
90    0, 0,
91    i2v_EXTENDED_KEY_USAGE,
92    v2i_EXTENDED_KEY_USAGE,
93    0, 0,
94    NULL
95};
96
97ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
98        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
99ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
100
101IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
102
103static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
104                                                    void *a,
105                                                    STACK_OF(CONF_VALUE)
106                                                    *ext_list)
107{
108    EXTENDED_KEY_USAGE *eku = a;
109    int i;
110    ASN1_OBJECT *obj;
111    char obj_tmp[80];
112    for (i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
113        obj = sk_ASN1_OBJECT_value(eku, i);
114        i2t_ASN1_OBJECT(obj_tmp, 80, obj);
115        X509V3_add_value(NULL, obj_tmp, &ext_list);
116    }
117    return ext_list;
118}
119
120static void *v2i_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
121                                    X509V3_CTX *ctx,
122                                    STACK_OF(CONF_VALUE) *nval)
123{
124    EXTENDED_KEY_USAGE *extku;
125    char *extval;
126    ASN1_OBJECT *objtmp;
127    CONF_VALUE *val;
128    int i;
129
130    if (!(extku = sk_ASN1_OBJECT_new_null())) {
131        X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE, ERR_R_MALLOC_FAILURE);
132        return NULL;
133    }
134
135    for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
136        val = sk_CONF_VALUE_value(nval, i);
137        if (val->value)
138            extval = val->value;
139        else
140            extval = val->name;
141        if (!(objtmp = OBJ_txt2obj(extval, 0))) {
142            sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
143            X509V3err(X509V3_F_V2I_EXTENDED_KEY_USAGE,
144                      X509V3_R_INVALID_OBJECT_IDENTIFIER);
145            X509V3_conf_err(val);
146            return NULL;
147        }
148        sk_ASN1_OBJECT_push(extku, objtmp);
149    }
150    return extku;
151}
152