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authorcvs2svn <admin@example.com>2015-08-02 21:54:22 +0000
committercvs2svn <admin@example.com>2015-08-02 21:54:22 +0000
commited3760bf4be4a96a89233fb8f8b84a0d44725862 (patch)
tree5609c82060f75c53af0a7641d9b33a88574876cd /src/lib/libcrypto/asn1/x_algor.c
parentf8b563fb5ba1524c821d37308f4e6abfc866bc3f (diff)
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diff --git a/src/lib/libcrypto/asn1/x_algor.c b/src/lib/libcrypto/asn1/x_algor.c
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1/* $OpenBSD: x_algor.c,v 1.21 2015/07/24 15:09:52 jsing Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2000.
4 */
5/* ====================================================================
6 * Copyright (c) 2000 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 <stddef.h>
60#include <openssl/x509.h>
61#include <openssl/asn1.h>
62#include <openssl/asn1t.h>
63
64static const ASN1_TEMPLATE X509_ALGOR_seq_tt[] = {
65 {
66 .offset = offsetof(X509_ALGOR, algorithm),
67 .field_name = "algorithm",
68 .item = &ASN1_OBJECT_it,
69 },
70 {
71 .flags = ASN1_TFLG_OPTIONAL,
72 .offset = offsetof(X509_ALGOR, parameter),
73 .field_name = "parameter",
74 .item = &ASN1_ANY_it,
75 },
76};
77
78const ASN1_ITEM X509_ALGOR_it = {
79 .itype = ASN1_ITYPE_SEQUENCE,
80 .utype = V_ASN1_SEQUENCE,
81 .templates = X509_ALGOR_seq_tt,
82 .tcount = sizeof(X509_ALGOR_seq_tt) / sizeof(ASN1_TEMPLATE),
83 .size = sizeof(X509_ALGOR),
84 .sname = "X509_ALGOR",
85};
86
87static const ASN1_TEMPLATE X509_ALGORS_item_tt = {
88 .flags = ASN1_TFLG_SEQUENCE_OF,
89 .tag = 0,
90 .offset = 0,
91 .field_name = "algorithms",
92 .item = &X509_ALGOR_it,
93};
94
95const ASN1_ITEM X509_ALGORS_it = {
96 .itype = ASN1_ITYPE_PRIMITIVE,
97 .utype = -1,
98 .templates = &X509_ALGORS_item_tt,
99 .tcount = 0,
100 .funcs = NULL,
101 .size = 0,
102 .sname = "X509_ALGORS",
103};
104
105
106X509_ALGOR *
107d2i_X509_ALGOR(X509_ALGOR **a, const unsigned char **in, long len)
108{
109 return (X509_ALGOR *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
110 &X509_ALGOR_it);
111}
112
113int
114i2d_X509_ALGOR(X509_ALGOR *a, unsigned char **out)
115{
116 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_ALGOR_it);
117}
118
119X509_ALGOR *
120X509_ALGOR_new(void)
121{
122 return (X509_ALGOR *)ASN1_item_new(&X509_ALGOR_it);
123}
124
125void
126X509_ALGOR_free(X509_ALGOR *a)
127{
128 ASN1_item_free((ASN1_VALUE *)a, &X509_ALGOR_it);
129}
130
131X509_ALGORS *
132d2i_X509_ALGORS(X509_ALGORS **a, const unsigned char **in, long len)
133{
134 return (X509_ALGORS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
135 &X509_ALGORS_it);
136}
137
138int
139i2d_X509_ALGORS(X509_ALGORS *a, unsigned char **out)
140{
141 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_ALGORS_it);
142}
143
144X509_ALGOR *
145X509_ALGOR_dup(X509_ALGOR *x)
146{
147 return ASN1_item_dup(&X509_ALGOR_it, x);
148}
149
150int
151X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
152{
153 if (!alg)
154 return 0;
155 if (ptype != V_ASN1_UNDEF) {
156 if (alg->parameter == NULL)
157 alg->parameter = ASN1_TYPE_new();
158 if (alg->parameter == NULL)
159 return 0;
160 }
161 if (alg) {
162 if (alg->algorithm)
163 ASN1_OBJECT_free(alg->algorithm);
164 alg->algorithm = aobj;
165 }
166 if (ptype == 0)
167 return 1;
168 if (ptype == V_ASN1_UNDEF) {
169 if (alg->parameter) {
170 ASN1_TYPE_free(alg->parameter);
171 alg->parameter = NULL;
172 }
173 } else
174 ASN1_TYPE_set(alg->parameter, ptype, pval);
175 return 1;
176}
177
178void
179X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
180 X509_ALGOR *algor)
181{
182 if (paobj)
183 *paobj = algor->algorithm;
184 if (pptype) {
185 if (algor->parameter == NULL) {
186 *pptype = V_ASN1_UNDEF;
187 return;
188 } else
189 *pptype = algor->parameter->type;
190 if (ppval)
191 *ppval = algor->parameter->value.ptr;
192 }
193}
194
195/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
196
197void
198X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
199{
200 int param_type;
201
202 if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
203 param_type = V_ASN1_UNDEF;
204 else
205 param_type = V_ASN1_NULL;
206
207 X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
208}
209
210/* Returns 0 if they are equal, != 0 otherwise. */
211int
212X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b)
213{
214 int rv = OBJ_cmp(a->algorithm, b->algorithm);
215 if (!rv) {
216 if (!a->parameter && !b->parameter)
217 rv = 0;
218 else
219 rv = ASN1_TYPE_cmp(a->parameter, b->parameter);
220 }
221 return(rv);
222}