v3_extku.c revision 55714 
1/* v3_extku.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/conf.h>
64#include <openssl/x509v3.h>
65
66static STACK_OF(ASN1_OBJECT) *v2i_ext_ku(X509V3_EXT_METHOD *method,
67				X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
68static STACK_OF(CONF_VALUE) *i2v_ext_ku(X509V3_EXT_METHOD *method,
69		STACK_OF(ASN1_OBJECT) *eku, STACK_OF(CONF_VALUE) *extlist);
70X509V3_EXT_METHOD v3_ext_ku = {
71NID_ext_key_usage, 0,
72(X509V3_EXT_NEW)ext_ku_new,
73(X509V3_EXT_FREE)ext_ku_free,
74(X509V3_EXT_D2I)d2i_ext_ku,
75(X509V3_EXT_I2D)i2d_ext_ku,
76NULL, NULL,
77(X509V3_EXT_I2V)i2v_ext_ku,
78(X509V3_EXT_V2I)v2i_ext_ku,
79NULL,NULL,
80NULL
81};
82
83STACK_OF(ASN1_OBJECT) *ext_ku_new(void)
84{
85	return sk_ASN1_OBJECT_new_null();
86}
87
88void ext_ku_free(STACK_OF(ASN1_OBJECT) *eku)
89{
90	sk_ASN1_OBJECT_pop_free(eku, ASN1_OBJECT_free);
91	return;
92}
93
94int i2d_ext_ku(STACK_OF(ASN1_OBJECT) *a, unsigned char **pp)
95{
96	return i2d_ASN1_SET_OF_ASN1_OBJECT(a, pp, i2d_ASN1_OBJECT,
97				V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, IS_SEQUENCE);
98}
99
100STACK_OF(ASN1_OBJECT) *d2i_ext_ku(STACK_OF(ASN1_OBJECT) **a,
101					unsigned char **pp, long length)
102{
103	return d2i_ASN1_SET_OF_ASN1_OBJECT(a, pp, length, d2i_ASN1_OBJECT,
104			 ASN1_OBJECT_free, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
105}
106
107
108
109static STACK_OF(CONF_VALUE) *i2v_ext_ku(X509V3_EXT_METHOD *method,
110		STACK_OF(ASN1_OBJECT) *eku, STACK_OF(CONF_VALUE) *ext_list)
111{
112int i;
113ASN1_OBJECT *obj;
114char obj_tmp[80];
115for(i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
116	obj = sk_ASN1_OBJECT_value(eku, i);
117	i2t_ASN1_OBJECT(obj_tmp, 80, obj);
118	X509V3_add_value(NULL, obj_tmp, &ext_list);
119}
120return ext_list;
121}
122
123static STACK_OF(ASN1_OBJECT) *v2i_ext_ku(X509V3_EXT_METHOD *method,
124				X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
125{
126STACK_OF(ASN1_OBJECT) *extku;
127char *extval;
128ASN1_OBJECT *objtmp;
129CONF_VALUE *val;
130int i;
131
132if(!(extku = sk_ASN1_OBJECT_new(NULL))) {
133	X509V3err(X509V3_F_V2I_EXT_KU,ERR_R_MALLOC_FAILURE);
134	return NULL;
135}
136
137for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
138	val = sk_CONF_VALUE_value(nval, i);
139	if(val->value) extval = val->value;
140	else 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_EXT_KU,X509V3_R_INVALID_OBJECT_IDENTIFIER);
144		X509V3_conf_err(val);
145		return NULL;
146	}
147	sk_ASN1_OBJECT_push(extku, objtmp);
148}
149return extku;
150}
151