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authorcvs2svn <admin@example.com>2009-06-25 14:33:51 +0000
committercvs2svn <admin@example.com>2009-06-25 14:33:51 +0000
commit3944e6efcea0baa7128a89353d149b37100c0ece (patch)
tree64c1ad6d7af88839fd67d630ca81c768fd1191cd /src/lib/libcrypto/x509v3/v3_lib.c
parent2eabc3aa42ad7d46a1723621f8e34e533342f67a (diff)
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Diffstat (limited to 'src/lib/libcrypto/x509v3/v3_lib.c')
-rw-r--r--src/lib/libcrypto/x509v3/v3_lib.c303
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diff --git a/src/lib/libcrypto/x509v3/v3_lib.c b/src/lib/libcrypto/x509v3/v3_lib.c
deleted file mode 100644
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1/* v3_lib.c */
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/* X509 v3 extension utilities */
59
60#include <stdio.h>
61#include "cryptlib.h"
62#include <openssl/conf.h>
63#include <openssl/x509v3.h>
64
65#include "ext_dat.h"
66
67static STACK_OF(X509V3_EXT_METHOD) *ext_list = NULL;
68
69static int ext_cmp(const X509V3_EXT_METHOD * const *a,
70 const X509V3_EXT_METHOD * const *b);
71static void ext_list_free(X509V3_EXT_METHOD *ext);
72
73int X509V3_EXT_add(X509V3_EXT_METHOD *ext)
74{
75 if(!ext_list && !(ext_list = sk_X509V3_EXT_METHOD_new(ext_cmp))) {
76 X509V3err(X509V3_F_X509V3_EXT_ADD,ERR_R_MALLOC_FAILURE);
77 return 0;
78 }
79 if(!sk_X509V3_EXT_METHOD_push(ext_list, ext)) {
80 X509V3err(X509V3_F_X509V3_EXT_ADD,ERR_R_MALLOC_FAILURE);
81 return 0;
82 }
83 return 1;
84}
85
86static int ext_cmp(const X509V3_EXT_METHOD * const *a,
87 const X509V3_EXT_METHOD * const *b)
88{
89 return ((*a)->ext_nid - (*b)->ext_nid);
90}
91
92X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid)
93{
94 X509V3_EXT_METHOD tmp, *t = &tmp, **ret;
95 int idx;
96 if(nid < 0) return NULL;
97 tmp.ext_nid = nid;
98 ret = (X509V3_EXT_METHOD **) OBJ_bsearch((char *)&t,
99 (char *)standard_exts, STANDARD_EXTENSION_COUNT,
100 sizeof(X509V3_EXT_METHOD *), (int (*)(const void *, const void *))ext_cmp);
101 if(ret) return *ret;
102 if(!ext_list) return NULL;
103 idx = sk_X509V3_EXT_METHOD_find(ext_list, &tmp);
104 if(idx == -1) return NULL;
105 return sk_X509V3_EXT_METHOD_value(ext_list, idx);
106}
107
108X509V3_EXT_METHOD *X509V3_EXT_get(X509_EXTENSION *ext)
109{
110 int nid;
111 if((nid = OBJ_obj2nid(ext->object)) == NID_undef) return NULL;
112 return X509V3_EXT_get_nid(nid);
113}
114
115
116int X509V3_EXT_add_list(X509V3_EXT_METHOD *extlist)
117{
118 for(;extlist->ext_nid!=-1;extlist++)
119 if(!X509V3_EXT_add(extlist)) return 0;
120 return 1;
121}
122
123int X509V3_EXT_add_alias(int nid_to, int nid_from)
124{
125 X509V3_EXT_METHOD *ext, *tmpext;
126 if(!(ext = X509V3_EXT_get_nid(nid_from))) {
127 X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS,X509V3_R_EXTENSION_NOT_FOUND);
128 return 0;
129 }
130 if(!(tmpext = (X509V3_EXT_METHOD *)OPENSSL_malloc(sizeof(X509V3_EXT_METHOD)))) {
131 X509V3err(X509V3_F_X509V3_EXT_ADD_ALIAS,ERR_R_MALLOC_FAILURE);
132 return 0;
133 }
134 *tmpext = *ext;
135 tmpext->ext_nid = nid_to;
136 tmpext->ext_flags |= X509V3_EXT_DYNAMIC;
137 return X509V3_EXT_add(tmpext);
138}
139
140void X509V3_EXT_cleanup(void)
141{
142 sk_X509V3_EXT_METHOD_pop_free(ext_list, ext_list_free);
143 ext_list = NULL;
144}
145
146static void ext_list_free(X509V3_EXT_METHOD *ext)
147{
148 if(ext->ext_flags & X509V3_EXT_DYNAMIC) OPENSSL_free(ext);
149}
150
151/* Legacy function: we don't need to add standard extensions
152 * any more because they are now kept in ext_dat.h.
153 */
154
155int X509V3_add_standard_extensions(void)
156{
157 return 1;
158}
159
160/* Return an extension internal structure */
161
162void *X509V3_EXT_d2i(X509_EXTENSION *ext)
163{
164 X509V3_EXT_METHOD *method;
165 const unsigned char *p;
166
167 if(!(method = X509V3_EXT_get(ext))) return NULL;
168 p = ext->value->data;
169 if(method->it) return ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it));
170 return method->d2i(NULL, &p, ext->value->length);
171}
172
173/* Get critical flag and decoded version of extension from a NID.
174 * The "idx" variable returns the last found extension and can
175 * be used to retrieve multiple extensions of the same NID.
176 * However multiple extensions with the same NID is usually
177 * due to a badly encoded certificate so if idx is NULL we
178 * choke if multiple extensions exist.
179 * The "crit" variable is set to the critical value.
180 * The return value is the decoded extension or NULL on
181 * error. The actual error can have several different causes,
182 * the value of *crit reflects the cause:
183 * >= 0, extension found but not decoded (reflects critical value).
184 * -1 extension not found.
185 * -2 extension occurs more than once.
186 */
187
188void *X509V3_get_d2i(STACK_OF(X509_EXTENSION) *x, int nid, int *crit, int *idx)
189{
190 int lastpos, i;
191 X509_EXTENSION *ex, *found_ex = NULL;
192 if(!x) {
193 if(idx) *idx = -1;
194 if(crit) *crit = -1;
195 return NULL;
196 }
197 if(idx) lastpos = *idx + 1;
198 else lastpos = 0;
199 if(lastpos < 0) lastpos = 0;
200 for(i = lastpos; i < sk_X509_EXTENSION_num(x); i++)
201 {
202 ex = sk_X509_EXTENSION_value(x, i);
203 if(OBJ_obj2nid(ex->object) == nid) {
204 if(idx) {
205 *idx = i;
206 found_ex = ex;
207 break;
208 } else if(found_ex) {
209 /* Found more than one */
210 if(crit) *crit = -2;
211 return NULL;
212 }
213 found_ex = ex;
214 }
215 }
216 if(found_ex) {
217 /* Found it */
218 if(crit) *crit = X509_EXTENSION_get_critical(found_ex);
219 return X509V3_EXT_d2i(found_ex);
220 }
221
222 /* Extension not found */
223 if(idx) *idx = -1;
224 if(crit) *crit = -1;
225 return NULL;
226}
227
228/* This function is a general extension append, replace and delete utility.
229 * The precise operation is governed by the 'flags' value. The 'crit' and
230 * 'value' arguments (if relevant) are the extensions internal structure.
231 */
232
233int X509V3_add1_i2d(STACK_OF(X509_EXTENSION) **x, int nid, void *value,
234 int crit, unsigned long flags)
235{
236 int extidx = -1;
237 int errcode;
238 X509_EXTENSION *ext, *extmp;
239 unsigned long ext_op = flags & X509V3_ADD_OP_MASK;
240
241 /* If appending we don't care if it exists, otherwise
242 * look for existing extension.
243 */
244 if(ext_op != X509V3_ADD_APPEND)
245 extidx = X509v3_get_ext_by_NID(*x, nid, -1);
246
247 /* See if extension exists */
248 if(extidx >= 0) {
249 /* If keep existing, nothing to do */
250 if(ext_op == X509V3_ADD_KEEP_EXISTING)
251 return 1;
252 /* If default then its an error */
253 if(ext_op == X509V3_ADD_DEFAULT) {
254 errcode = X509V3_R_EXTENSION_EXISTS;
255 goto err;
256 }
257 /* If delete, just delete it */
258 if(ext_op == X509V3_ADD_DELETE) {
259 if(!sk_X509_EXTENSION_delete(*x, extidx)) return -1;
260 return 1;
261 }
262 } else {
263 /* If replace existing or delete, error since
264 * extension must exist
265 */
266 if((ext_op == X509V3_ADD_REPLACE_EXISTING) ||
267 (ext_op == X509V3_ADD_DELETE)) {
268 errcode = X509V3_R_EXTENSION_NOT_FOUND;
269 goto err;
270 }
271 }
272
273 /* If we get this far then we have to create an extension:
274 * could have some flags for alternative encoding schemes...
275 */
276
277 ext = X509V3_EXT_i2d(nid, crit, value);
278
279 if(!ext) {
280 X509V3err(X509V3_F_X509V3_ADD1_I2D, X509V3_R_ERROR_CREATING_EXTENSION);
281 return 0;
282 }
283
284 /* If extension exists replace it.. */
285 if(extidx >= 0) {
286 extmp = sk_X509_EXTENSION_value(*x, extidx);
287 X509_EXTENSION_free(extmp);
288 if(!sk_X509_EXTENSION_set(*x, extidx, ext)) return -1;
289 return 1;
290 }
291
292 if(!*x && !(*x = sk_X509_EXTENSION_new_null())) return -1;
293 if(!sk_X509_EXTENSION_push(*x, ext)) return -1;
294
295 return 1;
296
297 err:
298 if(!(flags & X509V3_ADD_SILENT))
299 X509V3err(X509V3_F_X509V3_ADD1_I2D, errcode);
300 return 0;
301}
302
303IMPLEMENT_STACK_OF(X509V3_EXT_METHOD)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-06 15:28:06 +0000