/src/openssl/crypto/asn1/x_algor.c
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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 | | IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR) |
75 | | IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS) |
76 | | IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR) |
77 | | |
78 | | IMPLEMENT_STACK_OF(X509_ALGOR) |
79 | | IMPLEMENT_ASN1_SET_OF(X509_ALGOR) |
80 | | |
81 | | int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval) |
82 | 0 | { |
83 | 0 | if (!alg) |
84 | 0 | 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 | 0 | return 0; |
90 | 0 | } |
91 | 0 | if (alg) { |
92 | 0 | if (alg->algorithm) |
93 | 0 | ASN1_OBJECT_free(alg->algorithm); |
94 | 0 | alg->algorithm = aobj; |
95 | 0 | } |
96 | 0 | if (ptype == 0) |
97 | 0 | 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 | 0 | } |
103 | 0 | } else |
104 | 0 | ASN1_TYPE_set(alg->parameter, ptype, pval); |
105 | 0 | return 1; |
106 | 0 | } |
107 | | |
108 | | void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval, |
109 | | X509_ALGOR *algor) |
110 | 0 | { |
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 | 0 | } else |
118 | 0 | *pptype = algor->parameter->type; |
119 | 0 | if (ppval) |
120 | 0 | *ppval = algor->parameter->value.ptr; |
121 | 0 | } |
122 | 0 | } |
123 | | |
124 | | /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */ |
125 | | |
126 | | void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md) |
127 | 0 | { |
128 | 0 | int param_type; |
129 | |
|
130 | 0 | if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT) |
131 | 0 | param_type = V_ASN1_UNDEF; |
132 | 0 | else |
133 | 0 | 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 | | int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b) |
140 | 0 | { |
141 | 0 | int rv; |
142 | 0 | rv = OBJ_cmp(a->algorithm, b->algorithm); |
143 | 0 | if (rv) |
144 | 0 | return rv; |
145 | 0 | if (!a->parameter && !b->parameter) |
146 | 0 | return 0; |
147 | 0 | return ASN1_TYPE_cmp(a->parameter, b->parameter); |
148 | 0 | } |