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d02b48c6 | 1 | /* crypto/x509/x509_v3.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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. | |
0f113f3e | 8 | * |
d02b48c6 RE |
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). | |
0f113f3e | 15 | * |
d02b48c6 RE |
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. | |
0f113f3e | 22 | * |
d02b48c6 RE |
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 :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
d02b48c6 RE |
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. | |
0f113f3e | 52 | * |
d02b48c6 RE |
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> | |
ec577822 | 60 | #include <openssl/stack.h> |
b39fc560 | 61 | #include "internal/cryptlib.h" |
ec577822 BM |
62 | #include <openssl/asn1.h> |
63 | #include <openssl/objects.h> | |
64 | #include <openssl/evp.h> | |
65 | #include <openssl/x509.h> | |
13938ace | 66 | #include <openssl/x509v3.h> |
4903abd5 | 67 | #include "x509_lcl.h" |
d02b48c6 | 68 | |
0b3f827c | 69 | int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x) |
0f113f3e MC |
70 | { |
71 | if (x == NULL) | |
72 | return (0); | |
73 | return (sk_X509_EXTENSION_num(x)); | |
74 | } | |
d02b48c6 | 75 | |
0b3f827c | 76 | int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid, |
0f113f3e MC |
77 | int lastpos) |
78 | { | |
79 | ASN1_OBJECT *obj; | |
d02b48c6 | 80 | |
0f113f3e MC |
81 | obj = OBJ_nid2obj(nid); |
82 | if (obj == NULL) | |
83 | return (-2); | |
84 | return (X509v3_get_ext_by_OBJ(x, obj, lastpos)); | |
85 | } | |
d02b48c6 | 86 | |
0f113f3e MC |
87 | int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk, |
88 | ASN1_OBJECT *obj, int lastpos) | |
89 | { | |
90 | int n; | |
91 | X509_EXTENSION *ex; | |
d02b48c6 | 92 | |
0f113f3e MC |
93 | if (sk == NULL) |
94 | return (-1); | |
95 | lastpos++; | |
96 | if (lastpos < 0) | |
97 | lastpos = 0; | |
98 | n = sk_X509_EXTENSION_num(sk); | |
99 | for (; lastpos < n; lastpos++) { | |
100 | ex = sk_X509_EXTENSION_value(sk, lastpos); | |
101 | if (OBJ_cmp(ex->object, obj) == 0) | |
102 | return (lastpos); | |
103 | } | |
104 | return (-1); | |
105 | } | |
d02b48c6 | 106 | |
0b3f827c | 107 | int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit, |
0f113f3e MC |
108 | int lastpos) |
109 | { | |
110 | int n; | |
111 | X509_EXTENSION *ex; | |
d02b48c6 | 112 | |
0f113f3e MC |
113 | if (sk == NULL) |
114 | return (-1); | |
115 | lastpos++; | |
116 | if (lastpos < 0) | |
117 | lastpos = 0; | |
118 | n = sk_X509_EXTENSION_num(sk); | |
119 | for (; lastpos < n; lastpos++) { | |
120 | ex = sk_X509_EXTENSION_value(sk, lastpos); | |
121 | if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit)) | |
122 | return (lastpos); | |
123 | } | |
124 | return (-1); | |
125 | } | |
d02b48c6 | 126 | |
0b3f827c | 127 | X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc) |
0f113f3e MC |
128 | { |
129 | if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) | |
130 | return NULL; | |
131 | else | |
132 | return sk_X509_EXTENSION_value(x, loc); | |
133 | } | |
d02b48c6 | 134 | |
0b3f827c | 135 | X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc) |
0f113f3e MC |
136 | { |
137 | X509_EXTENSION *ret; | |
d02b48c6 | 138 | |
0f113f3e MC |
139 | if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) |
140 | return (NULL); | |
141 | ret = sk_X509_EXTENSION_delete(x, loc); | |
142 | return (ret); | |
143 | } | |
d02b48c6 | 144 | |
0b3f827c | 145 | STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x, |
0f113f3e MC |
146 | X509_EXTENSION *ex, int loc) |
147 | { | |
148 | X509_EXTENSION *new_ex = NULL; | |
149 | int n; | |
150 | STACK_OF(X509_EXTENSION) *sk = NULL; | |
d02b48c6 | 151 | |
0f113f3e MC |
152 | if (x == NULL) { |
153 | X509err(X509_F_X509V3_ADD_EXT, ERR_R_PASSED_NULL_PARAMETER); | |
154 | goto err2; | |
155 | } | |
c755c5fd | 156 | |
0f113f3e MC |
157 | if (*x == NULL) { |
158 | if ((sk = sk_X509_EXTENSION_new_null()) == NULL) | |
159 | goto err; | |
160 | } else | |
161 | sk = *x; | |
d02b48c6 | 162 | |
0f113f3e MC |
163 | n = sk_X509_EXTENSION_num(sk); |
164 | if (loc > n) | |
165 | loc = n; | |
166 | else if (loc < 0) | |
167 | loc = n; | |
d02b48c6 | 168 | |
0f113f3e MC |
169 | if ((new_ex = X509_EXTENSION_dup(ex)) == NULL) |
170 | goto err2; | |
171 | if (!sk_X509_EXTENSION_insert(sk, new_ex, loc)) | |
172 | goto err; | |
173 | if (*x == NULL) | |
174 | *x = sk; | |
175 | return (sk); | |
176 | err: | |
177 | X509err(X509_F_X509V3_ADD_EXT, ERR_R_MALLOC_FAILURE); | |
178 | err2: | |
222561fe RS |
179 | X509_EXTENSION_free(new_ex); |
180 | sk_X509_EXTENSION_free(sk); | |
0f113f3e MC |
181 | return (NULL); |
182 | } | |
d02b48c6 | 183 | |
6b691a5c | 184 | X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, |
0f113f3e MC |
185 | int crit, |
186 | ASN1_OCTET_STRING *data) | |
187 | { | |
188 | ASN1_OBJECT *obj; | |
189 | X509_EXTENSION *ret; | |
d02b48c6 | 190 | |
0f113f3e MC |
191 | obj = OBJ_nid2obj(nid); |
192 | if (obj == NULL) { | |
193 | X509err(X509_F_X509_EXTENSION_CREATE_BY_NID, X509_R_UNKNOWN_NID); | |
194 | return (NULL); | |
195 | } | |
196 | ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data); | |
197 | if (ret == NULL) | |
198 | ASN1_OBJECT_free(obj); | |
199 | return (ret); | |
200 | } | |
d02b48c6 | 201 | |
6b691a5c | 202 | X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex, |
0f113f3e MC |
203 | ASN1_OBJECT *obj, int crit, |
204 | ASN1_OCTET_STRING *data) | |
205 | { | |
206 | X509_EXTENSION *ret; | |
207 | ||
208 | if ((ex == NULL) || (*ex == NULL)) { | |
209 | if ((ret = X509_EXTENSION_new()) == NULL) { | |
210 | X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ, | |
211 | ERR_R_MALLOC_FAILURE); | |
212 | return (NULL); | |
213 | } | |
214 | } else | |
215 | ret = *ex; | |
d02b48c6 | 216 | |
0f113f3e MC |
217 | if (!X509_EXTENSION_set_object(ret, obj)) |
218 | goto err; | |
219 | if (!X509_EXTENSION_set_critical(ret, crit)) | |
220 | goto err; | |
221 | if (!X509_EXTENSION_set_data(ret, data)) | |
222 | goto err; | |
d02b48c6 | 223 | |
0f113f3e MC |
224 | if ((ex != NULL) && (*ex == NULL)) |
225 | *ex = ret; | |
226 | return (ret); | |
227 | err: | |
228 | if ((ex == NULL) || (ret != *ex)) | |
229 | X509_EXTENSION_free(ret); | |
230 | return (NULL); | |
231 | } | |
d02b48c6 | 232 | |
6b691a5c | 233 | int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj) |
0f113f3e MC |
234 | { |
235 | if ((ex == NULL) || (obj == NULL)) | |
236 | return (0); | |
237 | ASN1_OBJECT_free(ex->object); | |
238 | ex->object = OBJ_dup(obj); | |
239 | return (1); | |
240 | } | |
d02b48c6 | 241 | |
6b691a5c | 242 | int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit) |
0f113f3e MC |
243 | { |
244 | if (ex == NULL) | |
245 | return (0); | |
246 | ex->critical = (crit) ? 0xFF : -1; | |
247 | return (1); | |
248 | } | |
d02b48c6 | 249 | |
6b691a5c | 250 | int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data) |
0f113f3e MC |
251 | { |
252 | int i; | |
d02b48c6 | 253 | |
0f113f3e MC |
254 | if (ex == NULL) |
255 | return (0); | |
f422a514 | 256 | i = ASN1_OCTET_STRING_set(ex->value, data->data, data->length); |
0f113f3e MC |
257 | if (!i) |
258 | return (0); | |
259 | return (1); | |
260 | } | |
d02b48c6 | 261 | |
6b691a5c | 262 | ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex) |
0f113f3e MC |
263 | { |
264 | if (ex == NULL) | |
265 | return (NULL); | |
266 | return (ex->object); | |
267 | } | |
d02b48c6 | 268 | |
6b691a5c | 269 | ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex) |
0f113f3e MC |
270 | { |
271 | if (ex == NULL) | |
272 | return (NULL); | |
273 | return (ex->value); | |
274 | } | |
d02b48c6 | 275 | |
6b691a5c | 276 | int X509_EXTENSION_get_critical(X509_EXTENSION *ex) |
0f113f3e MC |
277 | { |
278 | if (ex == NULL) | |
279 | return (0); | |
280 | if (ex->critical > 0) | |
281 | return 1; | |
282 | return 0; | |
283 | } |