1 /* $OpenBSD: x509_extku.c,v 1.1 2020/06/04 15:19:31 jsing Exp $ */
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
59 #include <stdio.h>
60
61 #include <openssl/asn1t.h>
62 #include <openssl/conf.h>
63 #include <openssl/err.h>
64 #include <openssl/x509v3.h>
65
66 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
67 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
68 static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(
69 const X509V3_EXT_METHOD *method, void *eku, STACK_OF(CONF_VALUE) *extlist);
70
71 const X509V3_EXT_METHOD v3_ext_ku = {
72 .ext_nid = NID_ext_key_usage,
73 .ext_flags = 0,
74 .it = &EXTENDED_KEY_USAGE_it,
75 .ext_new = NULL,
76 .ext_free = NULL,
77 .d2i = NULL,
78 .i2d = NULL,
79 .i2s = NULL,
80 .s2i = NULL,
81 .i2v = i2v_EXTENDED_KEY_USAGE,
82 .v2i = v2i_EXTENDED_KEY_USAGE,
83 .i2r = NULL,
84 .r2i = NULL,
85 .usr_data = NULL,
86 };
87
88 /* NB OCSP acceptable responses also is a SEQUENCE OF OBJECT */
89 const X509V3_EXT_METHOD v3_ocsp_accresp = {
90 .ext_nid = NID_id_pkix_OCSP_acceptableResponses,
91 .ext_flags = 0,
92 .it = &EXTENDED_KEY_USAGE_it,
93 .ext_new = NULL,
94 .ext_free = NULL,
95 .d2i = NULL,
96 .i2d = NULL,
97 .i2s = NULL,
98 .s2i = NULL,
99 .i2v = i2v_EXTENDED_KEY_USAGE,
100 .v2i = v2i_EXTENDED_KEY_USAGE,
101 .i2r = NULL,
102 .r2i = NULL,
103 .usr_data = NULL,
104 };
105
106 static const ASN1_TEMPLATE EXTENDED_KEY_USAGE_item_tt = {
107 .flags = ASN1_TFLG_SEQUENCE_OF,
108 .tag = 0,
109 .offset = 0,
110 .field_name = "EXTENDED_KEY_USAGE",
111 .item = &ASN1_OBJECT_it,
112 };
113
114 const ASN1_ITEM EXTENDED_KEY_USAGE_it = {
115 .itype = ASN1_ITYPE_PRIMITIVE,
116 .utype = -1,
117 .templates = &EXTENDED_KEY_USAGE_item_tt,
118 .tcount = 0,
119 .funcs = NULL,
120 .size = 0,
121 .sname = "EXTENDED_KEY_USAGE",
122 };
123
124
125 EXTENDED_KEY_USAGE *
d2i_EXTENDED_KEY_USAGE(EXTENDED_KEY_USAGE ** a,const unsigned char ** in,long len)126 d2i_EXTENDED_KEY_USAGE(EXTENDED_KEY_USAGE **a, const unsigned char **in, long len)
127 {
128 return (EXTENDED_KEY_USAGE *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
129 &EXTENDED_KEY_USAGE_it);
130 }
131
132 int
i2d_EXTENDED_KEY_USAGE(EXTENDED_KEY_USAGE * a,unsigned char ** out)133 i2d_EXTENDED_KEY_USAGE(EXTENDED_KEY_USAGE *a, unsigned char **out)
134 {
135 return ASN1_item_i2d((ASN1_VALUE *)a, out, &EXTENDED_KEY_USAGE_it);
136 }
137
138 EXTENDED_KEY_USAGE *
EXTENDED_KEY_USAGE_new(void)139 EXTENDED_KEY_USAGE_new(void)
140 {
141 return (EXTENDED_KEY_USAGE *)ASN1_item_new(&EXTENDED_KEY_USAGE_it);
142 }
143
144 void
EXTENDED_KEY_USAGE_free(EXTENDED_KEY_USAGE * a)145 EXTENDED_KEY_USAGE_free(EXTENDED_KEY_USAGE *a)
146 {
147 ASN1_item_free((ASN1_VALUE *)a, &EXTENDED_KEY_USAGE_it);
148 }
149
STACK_OF(CONF_VALUE)150 static STACK_OF(CONF_VALUE) *
151 i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method, void *a,
152 STACK_OF(CONF_VALUE) *extlist)
153 {
154 ASN1_OBJECT *obj;
155 EXTENDED_KEY_USAGE *eku = a;
156 STACK_OF(CONF_VALUE) *free_extlist = NULL;
157 char obj_tmp[80];
158 int i;
159
160 if (extlist == NULL) {
161 if ((free_extlist = extlist = sk_CONF_VALUE_new_null()) == NULL)
162 return NULL;
163 }
164
165 for (i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
166 if ((obj = sk_ASN1_OBJECT_value(eku, i)) == NULL)
167 goto err;
168 if (!i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, obj))
169 goto err;
170 if (!X509V3_add_value(NULL, obj_tmp, &extlist))
171 goto err;
172 }
173
174 return extlist;
175
176 err:
177 sk_CONF_VALUE_pop_free(free_extlist, X509V3_conf_free);
178
179 return NULL;
180 }
181
182 static void *
v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)183 v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
184 STACK_OF(CONF_VALUE) *nval)
185 {
186 EXTENDED_KEY_USAGE *extku;
187 char *extval;
188 ASN1_OBJECT *objtmp;
189 CONF_VALUE *val;
190 int i;
191
192 if (!(extku = sk_ASN1_OBJECT_new_null())) {
193 X509V3error(ERR_R_MALLOC_FAILURE);
194 return NULL;
195 }
196
197 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
198 val = sk_CONF_VALUE_value(nval, i);
199 if (val->value)
200 extval = val->value;
201 else
202 extval = val->name;
203 if (!(objtmp = OBJ_txt2obj(extval, 0))) {
204 sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
205 X509V3error(X509V3_R_INVALID_OBJECT_IDENTIFIER);
206 X509V3_conf_err(val);
207 return NULL;
208 }
209 if (sk_ASN1_OBJECT_push(extku, objtmp) == 0) {
210 ASN1_OBJECT_free(objtmp);
211 sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
212 X509V3error(ERR_R_MALLOC_FAILURE);
213 return NULL;
214 }
215 }
216 return extku;
217 }
218