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1 /* v3_extku.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 #include <stdio.h>
59 
60 #include <openssl/asn1t.h>
61 #include <openssl/conf.h>
62 #include <openssl/err.h>
63 #include <openssl/obj.h>
64 #include <openssl/x509v3.h>
65 
66 
67 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
68 				    X509V3_CTX *ctx,
69 				    STACK_OF(CONF_VALUE) *nval);
70 static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
71 		void *eku, STACK_OF(CONF_VALUE) *extlist);
72 
73 const X509V3_EXT_METHOD v3_ext_ku = {
74 	NID_ext_key_usage, 0,
75 	ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
76 	0,0,0,0,
77 	0,0,
78 	i2v_EXTENDED_KEY_USAGE,
79 	v2i_EXTENDED_KEY_USAGE,
80 	0,0,
81 	NULL
82 };
83 
84 /* NB OCSP acceptable responses also is a SEQUENCE OF OBJECT */
85 const X509V3_EXT_METHOD v3_ocsp_accresp = {
86 	NID_id_pkix_OCSP_acceptableResponses, 0,
87 	ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
88 	0,0,0,0,
89 	0,0,
90 	i2v_EXTENDED_KEY_USAGE,
91 	v2i_EXTENDED_KEY_USAGE,
92 	0,0,
93 	NULL
94 };
95 
ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE)96 ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
97 	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
98 ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
99 
100 IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
101 
102 static STACK_OF(CONF_VALUE) *
103   i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method, void *a,
104 			 STACK_OF(CONF_VALUE) *ext_list)
105 {
106 	EXTENDED_KEY_USAGE *eku = a;
107 	size_t i;
108 	ASN1_OBJECT *obj;
109 	char obj_tmp[80];
110 	for(i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
111 		obj = sk_ASN1_OBJECT_value(eku, i);
112 		i2t_ASN1_OBJECT(obj_tmp, 80, obj);
113 		X509V3_add_value(NULL, obj_tmp, &ext_list);
114 	}
115 	return ext_list;
116 }
117 
v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)118 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
119 				    X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
120 {
121 	EXTENDED_KEY_USAGE *extku;
122 	char *extval;
123 	ASN1_OBJECT *objtmp;
124 	CONF_VALUE *val;
125 	size_t i;
126 
127 	if(!(extku = sk_ASN1_OBJECT_new_null())) {
128 		OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
129 		return NULL;
130 	}
131 
132 	for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
133 		val = sk_CONF_VALUE_value(nval, i);
134 		if(val->value) extval = val->value;
135 		else extval = val->name;
136 		if(!(objtmp = OBJ_txt2obj(extval, 0))) {
137 			sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
138 			OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
139 			X509V3_conf_err(val);
140 			return NULL;
141 		}
142 		sk_ASN1_OBJECT_push(extku, objtmp);
143 	}
144 	return extku;
145 }
146