]> CyberLeo.Net >> Repos - FreeBSD/releng/9.3.git/blob - crypto/openssl/crypto/x509v3/v3_extku.c
Fix multiple OpenSSL vulnerabilities.
[FreeBSD/releng/9.3.git] / crypto / openssl / crypto / x509v3 / v3_extku.c
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
66 static void *v2i_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
67                                     X509V3_CTX *ctx,
68                                     STACK_OF(CONF_VALUE) *nval);
69 static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(X509V3_EXT_METHOD *method,
70                                                     void *eku,
71                                                     STACK_OF(CONF_VALUE)
72                                                     *extlist);
73
74 const 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 */
86 const 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
97 ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
98         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
99 ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
100
101 IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
102
103 static 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
120 static 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 }