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
X509v3_get_ext_count(const STACK_OF (X509_EXTENSION)* x)68 int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
69 {
70 if (x == NULL)
71 return (0);
72 return (sk_X509_EXTENSION_num(x));
73 }
74
X509v3_get_ext_by_NID(const STACK_OF (X509_EXTENSION)* x,int nid,int lastpos)75 int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
76 int lastpos)
77 {
78 ASN1_OBJECT *obj;
79
80 obj = OBJ_nid2obj(nid);
81 if (obj == NULL)
82 return (-2);
83 return (X509v3_get_ext_by_OBJ(x, obj, lastpos));
84 }
85
X509v3_get_ext_by_OBJ(const STACK_OF (X509_EXTENSION)* sk,ASN1_OBJECT * obj,int lastpos)86 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 if (sk == NULL)
93 return (-1);
94 lastpos++;
95 if (lastpos < 0)
96 lastpos = 0;
97 n = sk_X509_EXTENSION_num(sk);
98 for (; lastpos < n; lastpos++) {
99 ex = sk_X509_EXTENSION_value(sk, lastpos);
100 if (OBJ_cmp(ex->object, obj) == 0)
101 return (lastpos);
102 }
103 return (-1);
104 }
105
X509v3_get_ext_by_critical(const STACK_OF (X509_EXTENSION)* sk,int crit,int lastpos)106 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 if (sk == NULL)
113 return (-1);
114 lastpos++;
115 if (lastpos < 0)
116 lastpos = 0;
117 n = sk_X509_EXTENSION_num(sk);
118 for (; lastpos < n; lastpos++) {
119 ex = sk_X509_EXTENSION_value(sk, lastpos);
120 if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit))
121 return (lastpos);
122 }
123 return (-1);
124 }
125
X509v3_get_ext(const STACK_OF (X509_EXTENSION)* x,int loc)126 X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
127 {
128 if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
129 return NULL;
130 else
131 return sk_X509_EXTENSION_value(x, loc);
132 }
133
X509v3_delete_ext(STACK_OF (X509_EXTENSION)* x,int loc)134 X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
135 {
136 X509_EXTENSION *ret;
137
138 if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
139 return (NULL);
140 ret = sk_X509_EXTENSION_delete(x, loc);
141 return (ret);
142 }
143
STACK_OF(X509_EXTENSION)144 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 if (x == NULL) {
152 X509err(X509_F_X509V3_ADD_EXT, ERR_R_PASSED_NULL_PARAMETER);
153 goto err2;
154 }
155
156 if (*x == NULL) {
157 if ((sk = sk_X509_EXTENSION_new_null()) == NULL)
158 goto err;
159 } else
160 sk = *x;
161
162 n = sk_X509_EXTENSION_num(sk);
163 if (loc > n)
164 loc = n;
165 else if (loc < 0)
166 loc = n;
167
168 if ((new_ex = X509_EXTENSION_dup(ex)) == NULL)
169 goto err2;
170 if (!sk_X509_EXTENSION_insert(sk, new_ex, loc))
171 goto err;
172 if (*x == NULL)
173 *x = sk;
174 return (sk);
175 err:
176 X509err(X509_F_X509V3_ADD_EXT, ERR_R_MALLOC_FAILURE);
177 err2:
178 if (new_ex != NULL)
179 X509_EXTENSION_free(new_ex);
180 if (sk != NULL)
181 sk_X509_EXTENSION_free(sk);
182 return (NULL);
183 }
184
X509_EXTENSION_create_by_NID(X509_EXTENSION ** ex,int nid,int crit,ASN1_OCTET_STRING * data)185 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 obj = OBJ_nid2obj(nid);
193 if (obj == NULL) {
194 X509err(X509_F_X509_EXTENSION_CREATE_BY_NID, X509_R_UNKNOWN_NID);
195 return (NULL);
196 }
197 ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data);
198 if (ret == NULL)
199 ASN1_OBJECT_free(obj);
200 return (ret);
201 }
202
X509_EXTENSION_create_by_OBJ(X509_EXTENSION ** ex,ASN1_OBJECT * obj,int crit,ASN1_OCTET_STRING * data)203 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 if ((ex == NULL) || (*ex == NULL)) {
210 if ((ret = X509_EXTENSION_new()) == NULL) {
211 X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,
212 ERR_R_MALLOC_FAILURE);
213 return (NULL);
214 }
215 } else
216 ret = *ex;
217
218 if (!X509_EXTENSION_set_object(ret, obj))
219 goto err;
220 if (!X509_EXTENSION_set_critical(ret, crit))
221 goto err;
222 if (!X509_EXTENSION_set_data(ret, data))
223 goto err;
224
225 if ((ex != NULL) && (*ex == NULL))
226 *ex = ret;
227 return (ret);
228 err:
229 if ((ex == NULL) || (ret != *ex))
230 X509_EXTENSION_free(ret);
231 return (NULL);
232 }
233
X509_EXTENSION_set_object(X509_EXTENSION * ex,ASN1_OBJECT * obj)234 int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj)
235 {
236 if ((ex == NULL) || (obj == NULL))
237 return (0);
238 ASN1_OBJECT_free(ex->object);
239 ex->object = OBJ_dup(obj);
240 return (1);
241 }
242
X509_EXTENSION_set_critical(X509_EXTENSION * ex,int crit)243 int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
244 {
245 if (ex == NULL)
246 return (0);
247 ex->critical = (crit) ? 0xFF : -1;
248 return (1);
249 }
250
X509_EXTENSION_set_data(X509_EXTENSION * ex,ASN1_OCTET_STRING * data)251 int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
252 {
253 int i;
254
255 if (ex == NULL)
256 return (0);
257 i = M_ASN1_OCTET_STRING_set(ex->value, data->data, data->length);
258 if (!i)
259 return (0);
260 return (1);
261 }
262
X509_EXTENSION_get_object(X509_EXTENSION * ex)263 ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
264 {
265 if (ex == NULL)
266 return (NULL);
267 return (ex->object);
268 }
269
X509_EXTENSION_get_data(X509_EXTENSION * ex)270 ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
271 {
272 if (ex == NULL)
273 return (NULL);
274 return (ex->value);
275 }
276
X509_EXTENSION_get_critical(X509_EXTENSION * ex)277 int X509_EXTENSION_get_critical(X509_EXTENSION *ex)
278 {
279 if (ex == NULL)
280 return (0);
281 if (ex->critical > 0)
282 return 1;
283 return 0;
284 }
285