Line data Source code
1 : /* x_algor.c */
2 : /*
3 : * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 : * 2000.
5 : */
6 : /* ====================================================================
7 : * Copyright (c) 2000 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 <stddef.h>
61 : #include <openssl/x509.h>
62 : #include <openssl/asn1.h>
63 : #include <openssl/asn1t.h>
64 :
65 : ASN1_SEQUENCE(X509_ALGOR) = {
66 : ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT),
67 : ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY)
68 : } ASN1_SEQUENCE_END(X509_ALGOR)
69 :
70 : ASN1_ITEM_TEMPLATE(X509_ALGORS) =
71 : ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR)
72 : ASN1_ITEM_TEMPLATE_END(X509_ALGORS)
73 :
74 0 : IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR)
75 0 : IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS)
76 0 : IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR)
77 :
78 : IMPLEMENT_STACK_OF(X509_ALGOR)
79 : IMPLEMENT_ASN1_SET_OF(X509_ALGOR)
80 :
81 0 : int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
82 : {
83 0 : if (!alg)
84 : return 0;
85 0 : if (ptype != V_ASN1_UNDEF) {
86 0 : if (alg->parameter == NULL)
87 0 : alg->parameter = ASN1_TYPE_new();
88 0 : if (alg->parameter == NULL)
89 : return 0;
90 : }
91 0 : if (alg) {
92 0 : if (alg->algorithm)
93 0 : ASN1_OBJECT_free(alg->algorithm);
94 0 : alg->algorithm = aobj;
95 : }
96 0 : if (ptype == 0)
97 : return 1;
98 0 : if (ptype == V_ASN1_UNDEF) {
99 0 : if (alg->parameter) {
100 0 : ASN1_TYPE_free(alg->parameter);
101 0 : alg->parameter = NULL;
102 : }
103 : } else
104 0 : ASN1_TYPE_set(alg->parameter, ptype, pval);
105 : return 1;
106 : }
107 :
108 0 : void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
109 : X509_ALGOR *algor)
110 : {
111 0 : if (paobj)
112 0 : *paobj = algor->algorithm;
113 0 : if (pptype) {
114 0 : if (algor->parameter == NULL) {
115 0 : *pptype = V_ASN1_UNDEF;
116 0 : return;
117 : } else
118 0 : *pptype = algor->parameter->type;
119 0 : if (ppval)
120 0 : *ppval = algor->parameter->value.ptr;
121 : }
122 : }
123 :
124 : /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
125 :
126 0 : void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
127 : {
128 : int param_type;
129 :
130 0 : if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
131 : param_type = V_ASN1_UNDEF;
132 : else
133 : param_type = V_ASN1_NULL;
134 :
135 0 : X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
136 :
137 0 : }
138 :
139 370 : int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b)
140 : {
141 : int rv;
142 370 : rv = OBJ_cmp(a->algorithm, b->algorithm);
143 370 : if (rv)
144 : return rv;
145 370 : if (!a->parameter && !b->parameter)
146 : return 0;
147 370 : return ASN1_TYPE_cmp(a->parameter, b->parameter);
148 : }
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