1 /* $OpenBSD: x_attrib.c,v 1.13 2015/02/14 14:56:45 jsing Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include <openssl/asn1t.h>
62 #include <openssl/objects.h>
63 #include <openssl/x509.h>
65 /* X509_ATTRIBUTE: this has the following form:
67 * typedef struct x509_attributes_st
69 * ASN1_OBJECT *object;
73 * STACK_OF(ASN1_TYPE) *set;
78 * this needs some extra thought because the CHOICE type is
79 * merged with the main structure and because the value can
80 * be anything at all we *must* try the SET OF first because
81 * the ASN1_ANY type will swallow anything including the whole
85 static const ASN1_TEMPLATE X509_ATTRIBUTE_SET_ch_tt
[] = {
87 .flags
= ASN1_TFLG_SET_OF
,
89 .offset
= offsetof(X509_ATTRIBUTE
, value
.set
),
90 .field_name
= "value.set",
96 .offset
= offsetof(X509_ATTRIBUTE
, value
.single
),
97 .field_name
= "value.single",
102 const ASN1_ITEM X509_ATTRIBUTE_SET_it
= {
103 .itype
= ASN1_ITYPE_CHOICE
,
104 .utype
= offsetof(X509_ATTRIBUTE
, single
),
105 .templates
= X509_ATTRIBUTE_SET_ch_tt
,
106 .tcount
= sizeof(X509_ATTRIBUTE_SET_ch_tt
) / sizeof(ASN1_TEMPLATE
),
108 .size
= sizeof(X509_ATTRIBUTE
),
109 .sname
= "X509_ATTRIBUTE",
112 static const ASN1_TEMPLATE X509_ATTRIBUTE_seq_tt
[] = {
116 .offset
= offsetof(X509_ATTRIBUTE
, object
),
117 .field_name
= "object",
118 .item
= &ASN1_OBJECT_it
,
120 /* CHOICE type merged with parent */
122 .flags
= 0 | ASN1_TFLG_COMBINE
,
126 .item
= &X509_ATTRIBUTE_SET_it
,
130 const ASN1_ITEM X509_ATTRIBUTE_it
= {
131 .itype
= ASN1_ITYPE_SEQUENCE
,
132 .utype
= V_ASN1_SEQUENCE
,
133 .templates
= X509_ATTRIBUTE_seq_tt
,
134 .tcount
= sizeof(X509_ATTRIBUTE_seq_tt
) / sizeof(ASN1_TEMPLATE
),
136 .size
= sizeof(X509_ATTRIBUTE
),
137 .sname
= "X509_ATTRIBUTE",
142 d2i_X509_ATTRIBUTE(X509_ATTRIBUTE
**a
, const unsigned char **in
, long len
)
144 return (X509_ATTRIBUTE
*)ASN1_item_d2i((ASN1_VALUE
**)a
, in
, len
,
149 i2d_X509_ATTRIBUTE(X509_ATTRIBUTE
*a
, unsigned char **out
)
151 return ASN1_item_i2d((ASN1_VALUE
*)a
, out
, &X509_ATTRIBUTE_it
);
155 X509_ATTRIBUTE_new(void)
157 return (X509_ATTRIBUTE
*)ASN1_item_new(&X509_ATTRIBUTE_it
);
161 X509_ATTRIBUTE_free(X509_ATTRIBUTE
*a
)
163 ASN1_item_free((ASN1_VALUE
*)a
, &X509_ATTRIBUTE_it
);
167 X509_ATTRIBUTE_dup(X509_ATTRIBUTE
*x
)
169 return ASN1_item_dup(&X509_ATTRIBUTE_it
, x
);
173 X509_ATTRIBUTE_create(int nid
, int atrtype
, void *value
)
175 X509_ATTRIBUTE
*ret
= NULL
;
176 ASN1_TYPE
*val
= NULL
;
178 if ((ret
= X509_ATTRIBUTE_new()) == NULL
)
180 ret
->object
= OBJ_nid2obj(nid
);
182 if ((ret
->value
.set
= sk_ASN1_TYPE_new_null()) == NULL
)
184 if ((val
= ASN1_TYPE_new()) == NULL
)
186 if (!sk_ASN1_TYPE_push(ret
->value
.set
, val
))
189 ASN1_TYPE_set(val
, atrtype
, value
);
194 X509_ATTRIBUTE_free(ret
);