Line data Source code
1 : /* crypto/x509/x509_v3.c */
2 : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 : * All rights reserved.
4 : *
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.
8 : *
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).
15 : *
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.
22 : *
23 : * Redistribution and use in source and binary forms, with or without
24 : * modification, are permitted provided that the following conditions
25 : * are met:
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)"
40 : *
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
51 : * SUCH DAMAGE.
52 : *
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.]
57 : */
58 :
59 : #include <stdio.h>
60 : #include <openssl/stack.h>
61 : #include "cryptlib.h"
62 : #include <openssl/asn1.h>
63 : #include <openssl/objects.h>
64 : #include <openssl/evp.h>
65 : #include <openssl/x509.h>
66 : #include <openssl/x509v3.h>
67 :
68 3158 : int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
69 : {
70 3158 : if (x == NULL)
71 : return (0);
72 2828 : return (sk_X509_EXTENSION_num(x));
73 : }
74 :
75 0 : int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
76 : int lastpos)
77 : {
78 : ASN1_OBJECT *obj;
79 :
80 0 : obj = OBJ_nid2obj(nid);
81 0 : if (obj == NULL)
82 : return (-2);
83 0 : return (X509v3_get_ext_by_OBJ(x, obj, lastpos));
84 : }
85 :
86 0 : int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk,
87 : ASN1_OBJECT *obj, int lastpos)
88 : {
89 : int n;
90 : X509_EXTENSION *ex;
91 :
92 0 : if (sk == NULL)
93 : return (-1);
94 0 : lastpos++;
95 0 : if (lastpos < 0)
96 : lastpos = 0;
97 0 : n = sk_X509_EXTENSION_num(sk);
98 0 : for (; lastpos < n; lastpos++) {
99 0 : ex = sk_X509_EXTENSION_value(sk, lastpos);
100 0 : if (OBJ_cmp(ex->object, obj) == 0)
101 : return (lastpos);
102 : }
103 : return (-1);
104 : }
105 :
106 0 : int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
107 : int lastpos)
108 : {
109 : int n;
110 : X509_EXTENSION *ex;
111 :
112 0 : if (sk == NULL)
113 : return (-1);
114 0 : lastpos++;
115 0 : if (lastpos < 0)
116 : lastpos = 0;
117 0 : n = sk_X509_EXTENSION_num(sk);
118 0 : for (; lastpos < n; lastpos++) {
119 0 : ex = sk_X509_EXTENSION_value(sk, lastpos);
120 0 : if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit))
121 : return (lastpos);
122 : }
123 : return (-1);
124 : }
125 :
126 2121 : X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
127 : {
128 2121 : if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
129 : return NULL;
130 : else
131 2121 : return sk_X509_EXTENSION_value(x, loc);
132 : }
133 :
134 0 : X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
135 : {
136 : X509_EXTENSION *ret;
137 :
138 0 : if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
139 : return (NULL);
140 0 : ret = sk_X509_EXTENSION_delete(x, loc);
141 0 : return (ret);
142 : }
143 :
144 0 : STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
145 : X509_EXTENSION *ex, int loc)
146 : {
147 : X509_EXTENSION *new_ex = NULL;
148 : int n;
149 : STACK_OF(X509_EXTENSION) *sk = NULL;
150 :
151 0 : if (x == NULL) {
152 0 : X509err(X509_F_X509V3_ADD_EXT, ERR_R_PASSED_NULL_PARAMETER);
153 0 : goto err2;
154 : }
155 :
156 0 : if (*x == NULL) {
157 0 : if ((sk = sk_X509_EXTENSION_new_null()) == NULL)
158 : goto err;
159 : } else
160 : sk = *x;
161 :
162 0 : n = sk_X509_EXTENSION_num(sk);
163 0 : if (loc > n)
164 : loc = n;
165 0 : else if (loc < 0)
166 : loc = n;
167 :
168 0 : if ((new_ex = X509_EXTENSION_dup(ex)) == NULL)
169 : goto err2;
170 0 : if (!sk_X509_EXTENSION_insert(sk, new_ex, loc))
171 : goto err;
172 0 : if (*x == NULL)
173 0 : *x = sk;
174 0 : return (sk);
175 : err:
176 0 : X509err(X509_F_X509V3_ADD_EXT, ERR_R_MALLOC_FAILURE);
177 : err2:
178 0 : if (new_ex != NULL)
179 0 : X509_EXTENSION_free(new_ex);
180 0 : if (sk != NULL)
181 0 : sk_X509_EXTENSION_free(sk);
182 : return (NULL);
183 : }
184 :
185 0 : X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
186 : int crit,
187 : ASN1_OCTET_STRING *data)
188 : {
189 : ASN1_OBJECT *obj;
190 : X509_EXTENSION *ret;
191 :
192 0 : obj = OBJ_nid2obj(nid);
193 0 : if (obj == NULL) {
194 0 : X509err(X509_F_X509_EXTENSION_CREATE_BY_NID, X509_R_UNKNOWN_NID);
195 0 : return (NULL);
196 : }
197 0 : ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data);
198 0 : if (ret == NULL)
199 0 : ASN1_OBJECT_free(obj);
200 0 : return (ret);
201 : }
202 :
203 0 : X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
204 : ASN1_OBJECT *obj, int crit,
205 : ASN1_OCTET_STRING *data)
206 : {
207 : X509_EXTENSION *ret;
208 :
209 0 : if ((ex == NULL) || (*ex == NULL)) {
210 0 : if ((ret = X509_EXTENSION_new()) == NULL) {
211 0 : X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,
212 : ERR_R_MALLOC_FAILURE);
213 0 : return (NULL);
214 : }
215 : } else
216 : ret = *ex;
217 :
218 0 : if (!X509_EXTENSION_set_object(ret, obj))
219 : goto err;
220 0 : if (!X509_EXTENSION_set_critical(ret, crit))
221 : goto err;
222 0 : if (!X509_EXTENSION_set_data(ret, data))
223 : goto err;
224 :
225 0 : if ((ex != NULL) && (*ex == NULL))
226 0 : *ex = ret;
227 0 : return (ret);
228 : err:
229 0 : if ((ex == NULL) || (ret != *ex))
230 0 : X509_EXTENSION_free(ret);
231 : return (NULL);
232 : }
233 :
234 0 : int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj)
235 : {
236 0 : if ((ex == NULL) || (obj == NULL))
237 : return (0);
238 0 : ASN1_OBJECT_free(ex->object);
239 0 : ex->object = OBJ_dup(obj);
240 0 : return (1);
241 : }
242 :
243 0 : int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
244 : {
245 0 : if (ex == NULL)
246 : return (0);
247 0 : ex->critical = (crit) ? 0xFF : -1;
248 0 : return (1);
249 : }
250 :
251 0 : int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
252 : {
253 : int i;
254 :
255 0 : if (ex == NULL)
256 : return (0);
257 0 : i = M_ASN1_OCTET_STRING_set(ex->value, data->data, data->length);
258 0 : if (!i)
259 : return (0);
260 0 : return (1);
261 : }
262 :
263 2121 : ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
264 : {
265 2121 : if (ex == NULL)
266 : return (NULL);
267 2121 : return (ex->object);
268 : }
269 :
270 0 : ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
271 : {
272 0 : if (ex == NULL)
273 : return (NULL);
274 0 : return (ex->value);
275 : }
276 :
277 2121 : int X509_EXTENSION_get_critical(X509_EXTENSION *ex)
278 : {
279 2121 : if (ex == NULL)
280 : return (0);
281 2121 : if (ex->critical > 0)
282 : return 1;
283 2121 : return 0;
284 : }
|
