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b38f9f66 DSH |
1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
2 | * All rights reserved. | |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
b38f9f66 DSH |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
b38f9f66 DSH |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
b38f9f66 DSH |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
b38f9f66 DSH |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
b38f9f66 DSH |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
b38f9f66 DSH |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
59 | #include <openssl/stack.h> | |
b39fc560 | 60 | #include "internal/cryptlib.h" |
b38f9f66 DSH |
61 | #include <openssl/asn1.h> |
62 | #include <openssl/objects.h> | |
63 | #include <openssl/evp.h> | |
64 | #include <openssl/x509.h> | |
65 | #include <openssl/x509v3.h> | |
9b0a4531 | 66 | #include "x509_lcl.h" |
b38f9f66 | 67 | |
77b47b90 | 68 | int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x) |
b38f9f66 | 69 | { |
0f113f3e | 70 | return sk_X509_ATTRIBUTE_num(x); |
b38f9f66 DSH |
71 | } |
72 | ||
77b47b90 | 73 | int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid, |
0f113f3e | 74 | int lastpos) |
b38f9f66 | 75 | { |
0f113f3e | 76 | ASN1_OBJECT *obj; |
b38f9f66 | 77 | |
0f113f3e MC |
78 | obj = OBJ_nid2obj(nid); |
79 | if (obj == NULL) | |
80 | return (-2); | |
81 | return (X509at_get_attr_by_OBJ(x, obj, lastpos)); | |
b38f9f66 DSH |
82 | } |
83 | ||
0f113f3e MC |
84 | int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, |
85 | ASN1_OBJECT *obj, int lastpos) | |
b38f9f66 | 86 | { |
0f113f3e MC |
87 | int n; |
88 | X509_ATTRIBUTE *ex; | |
b38f9f66 | 89 | |
0f113f3e MC |
90 | if (sk == NULL) |
91 | return (-1); | |
92 | lastpos++; | |
93 | if (lastpos < 0) | |
94 | lastpos = 0; | |
95 | n = sk_X509_ATTRIBUTE_num(sk); | |
96 | for (; lastpos < n; lastpos++) { | |
97 | ex = sk_X509_ATTRIBUTE_value(sk, lastpos); | |
98 | if (OBJ_cmp(ex->object, obj) == 0) | |
99 | return (lastpos); | |
100 | } | |
101 | return (-1); | |
b38f9f66 DSH |
102 | } |
103 | ||
77b47b90 | 104 | X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc) |
b38f9f66 | 105 | { |
0f113f3e MC |
106 | if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) |
107 | return NULL; | |
108 | else | |
109 | return sk_X509_ATTRIBUTE_value(x, loc); | |
b38f9f66 DSH |
110 | } |
111 | ||
77b47b90 | 112 | X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc) |
b38f9f66 | 113 | { |
0f113f3e | 114 | X509_ATTRIBUTE *ret; |
b38f9f66 | 115 | |
0f113f3e MC |
116 | if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) |
117 | return (NULL); | |
118 | ret = sk_X509_ATTRIBUTE_delete(x, loc); | |
119 | return (ret); | |
b38f9f66 DSH |
120 | } |
121 | ||
c7cb16a8 | 122 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x, |
0f113f3e | 123 | X509_ATTRIBUTE *attr) |
b38f9f66 | 124 | { |
0f113f3e MC |
125 | X509_ATTRIBUTE *new_attr = NULL; |
126 | STACK_OF(X509_ATTRIBUTE) *sk = NULL; | |
b38f9f66 | 127 | |
0f113f3e MC |
128 | if (x == NULL) { |
129 | X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER); | |
130 | goto err2; | |
131 | } | |
c755c5fd | 132 | |
0f113f3e MC |
133 | if (*x == NULL) { |
134 | if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL) | |
135 | goto err; | |
136 | } else | |
137 | sk = *x; | |
b38f9f66 | 138 | |
0f113f3e MC |
139 | if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL) |
140 | goto err2; | |
141 | if (!sk_X509_ATTRIBUTE_push(sk, new_attr)) | |
142 | goto err; | |
143 | if (*x == NULL) | |
144 | *x = sk; | |
145 | return (sk); | |
146 | err: | |
147 | X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_MALLOC_FAILURE); | |
148 | err2: | |
222561fe RS |
149 | X509_ATTRIBUTE_free(new_attr); |
150 | sk_X509_ATTRIBUTE_free(sk); | |
0f113f3e | 151 | return (NULL); |
b38f9f66 DSH |
152 | } |
153 | ||
0f113f3e MC |
154 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) |
155 | **x, const ASN1_OBJECT *obj, | |
156 | int type, | |
157 | const unsigned char *bytes, | |
158 | int len) | |
77b47b90 | 159 | { |
0f113f3e MC |
160 | X509_ATTRIBUTE *attr; |
161 | STACK_OF(X509_ATTRIBUTE) *ret; | |
162 | attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len); | |
163 | if (!attr) | |
164 | return 0; | |
165 | ret = X509at_add1_attr(x, attr); | |
166 | X509_ATTRIBUTE_free(attr); | |
167 | return ret; | |
77b47b90 DSH |
168 | } |
169 | ||
0f113f3e MC |
170 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) |
171 | **x, int nid, int type, | |
172 | const unsigned char *bytes, | |
173 | int len) | |
77b47b90 | 174 | { |
0f113f3e MC |
175 | X509_ATTRIBUTE *attr; |
176 | STACK_OF(X509_ATTRIBUTE) *ret; | |
177 | attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len); | |
178 | if (!attr) | |
179 | return 0; | |
180 | ret = X509at_add1_attr(x, attr); | |
181 | X509_ATTRIBUTE_free(attr); | |
182 | return ret; | |
77b47b90 DSH |
183 | } |
184 | ||
0f113f3e MC |
185 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) |
186 | **x, const char *attrname, | |
187 | int type, | |
188 | const unsigned char *bytes, | |
189 | int len) | |
77b47b90 | 190 | { |
0f113f3e MC |
191 | X509_ATTRIBUTE *attr; |
192 | STACK_OF(X509_ATTRIBUTE) *ret; | |
193 | attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len); | |
194 | if (!attr) | |
195 | return 0; | |
196 | ret = X509at_add1_attr(x, attr); | |
197 | X509_ATTRIBUTE_free(attr); | |
198 | return ret; | |
77b47b90 DSH |
199 | } |
200 | ||
4d318c79 | 201 | void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x, |
0f113f3e | 202 | ASN1_OBJECT *obj, int lastpos, int type) |
4d318c79 | 203 | { |
0f113f3e MC |
204 | int i; |
205 | X509_ATTRIBUTE *at; | |
206 | i = X509at_get_attr_by_OBJ(x, obj, lastpos); | |
207 | if (i == -1) | |
208 | return NULL; | |
209 | if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1)) | |
210 | return NULL; | |
211 | at = X509at_get_attr(x, i); | |
212 | if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1)) | |
213 | return NULL; | |
214 | return X509_ATTRIBUTE_get0_data(at, 0, type, NULL); | |
4d318c79 DSH |
215 | } |
216 | ||
b38f9f66 | 217 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid, |
0f113f3e MC |
218 | int atrtype, const void *data, |
219 | int len) | |
b38f9f66 | 220 | { |
0f113f3e MC |
221 | ASN1_OBJECT *obj; |
222 | X509_ATTRIBUTE *ret; | |
b38f9f66 | 223 | |
0f113f3e MC |
224 | obj = OBJ_nid2obj(nid); |
225 | if (obj == NULL) { | |
226 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID, X509_R_UNKNOWN_NID); | |
227 | return (NULL); | |
228 | } | |
229 | ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len); | |
230 | if (ret == NULL) | |
231 | ASN1_OBJECT_free(obj); | |
232 | return (ret); | |
b38f9f66 DSH |
233 | } |
234 | ||
235 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr, | |
0f113f3e MC |
236 | const ASN1_OBJECT *obj, |
237 | int atrtype, const void *data, | |
238 | int len) | |
b38f9f66 | 239 | { |
0f113f3e | 240 | X509_ATTRIBUTE *ret; |
b38f9f66 | 241 | |
0f113f3e MC |
242 | if ((attr == NULL) || (*attr == NULL)) { |
243 | if ((ret = X509_ATTRIBUTE_new()) == NULL) { | |
244 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ, | |
245 | ERR_R_MALLOC_FAILURE); | |
246 | return (NULL); | |
247 | } | |
248 | } else | |
249 | ret = *attr; | |
b38f9f66 | 250 | |
0f113f3e MC |
251 | if (!X509_ATTRIBUTE_set1_object(ret, obj)) |
252 | goto err; | |
253 | if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len)) | |
254 | goto err; | |
8528128b | 255 | |
0f113f3e MC |
256 | if ((attr != NULL) && (*attr == NULL)) |
257 | *attr = ret; | |
258 | return (ret); | |
259 | err: | |
260 | if ((attr == NULL) || (ret != *attr)) | |
261 | X509_ATTRIBUTE_free(ret); | |
262 | return (NULL); | |
b38f9f66 DSH |
263 | } |
264 | ||
77b47b90 | 265 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr, |
0f113f3e MC |
266 | const char *atrname, int type, |
267 | const unsigned char *bytes, | |
268 | int len) | |
269 | { | |
270 | ASN1_OBJECT *obj; | |
271 | X509_ATTRIBUTE *nattr; | |
77b47b90 | 272 | |
0f113f3e MC |
273 | obj = OBJ_txt2obj(atrname, 0); |
274 | if (obj == NULL) { | |
275 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT, | |
276 | X509_R_INVALID_FIELD_NAME); | |
277 | ERR_add_error_data(2, "name=", atrname); | |
278 | return (NULL); | |
279 | } | |
280 | nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len); | |
281 | ASN1_OBJECT_free(obj); | |
282 | return nattr; | |
283 | } | |
77b47b90 | 284 | |
f2a253e0 | 285 | int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj) |
b38f9f66 | 286 | { |
0f113f3e MC |
287 | if ((attr == NULL) || (obj == NULL)) |
288 | return (0); | |
289 | ASN1_OBJECT_free(attr->object); | |
290 | attr->object = OBJ_dup(obj); | |
4e0e4d29 | 291 | return attr->object != NULL; |
b38f9f66 DSH |
292 | } |
293 | ||
0f113f3e MC |
294 | int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, |
295 | const void *data, int len) | |
b38f9f66 | 296 | { |
0f113f3e MC |
297 | ASN1_TYPE *ttmp; |
298 | ASN1_STRING *stmp = NULL; | |
299 | int atype = 0; | |
300 | if (!attr) | |
301 | return 0; | |
302 | if (attrtype & MBSTRING_FLAG) { | |
303 | stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype, | |
304 | OBJ_obj2nid(attr->object)); | |
305 | if (!stmp) { | |
306 | X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB); | |
307 | return 0; | |
308 | } | |
309 | atype = stmp->type; | |
310 | } else if (len != -1) { | |
75ebbd9a | 311 | if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL) |
0f113f3e MC |
312 | goto err; |
313 | if (!ASN1_STRING_set(stmp, data, len)) | |
314 | goto err; | |
315 | atype = attrtype; | |
316 | } | |
0f113f3e MC |
317 | /* |
318 | * This is a bit naughty because the attribute should really have at | |
319 | * least one value but some types use and zero length SET and require | |
320 | * this. | |
321 | */ | |
322 | if (attrtype == 0) | |
323 | return 1; | |
75ebbd9a | 324 | if ((ttmp = ASN1_TYPE_new()) == NULL) |
0f113f3e MC |
325 | goto err; |
326 | if ((len == -1) && !(attrtype & MBSTRING_FLAG)) { | |
327 | if (!ASN1_TYPE_set1(ttmp, attrtype, data)) | |
328 | goto err; | |
329 | } else | |
330 | ASN1_TYPE_set(ttmp, atype, stmp); | |
e20b5727 | 331 | if (!sk_ASN1_TYPE_push(attr->set, ttmp)) |
0f113f3e MC |
332 | goto err; |
333 | return 1; | |
334 | err: | |
335 | X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE); | |
336 | return 0; | |
b38f9f66 DSH |
337 | } |
338 | ||
339 | int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr) | |
340 | { | |
e20b5727 DSH |
341 | if (attr == NULL) |
342 | return 0; | |
343 | return sk_ASN1_TYPE_num(attr->set); | |
b38f9f66 DSH |
344 | } |
345 | ||
c7cb16a8 | 346 | ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr) |
b38f9f66 | 347 | { |
0f113f3e MC |
348 | if (attr == NULL) |
349 | return (NULL); | |
350 | return (attr->object); | |
b38f9f66 DSH |
351 | } |
352 | ||
c7cb16a8 | 353 | void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx, |
0f113f3e | 354 | int atrtype, void *data) |
b38f9f66 | 355 | { |
0f113f3e MC |
356 | ASN1_TYPE *ttmp; |
357 | ttmp = X509_ATTRIBUTE_get0_type(attr, idx); | |
358 | if (!ttmp) | |
359 | return NULL; | |
360 | if (atrtype != ASN1_TYPE_get(ttmp)) { | |
361 | X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE); | |
362 | return NULL; | |
363 | } | |
364 | return ttmp->value.ptr; | |
b38f9f66 DSH |
365 | } |
366 | ||
c7cb16a8 | 367 | ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx) |
b38f9f66 | 368 | { |
0f113f3e | 369 | if (attr == NULL) |
0f113f3e | 370 | return NULL; |
e20b5727 | 371 | return sk_ASN1_TYPE_value(attr->set, idx); |
b38f9f66 | 372 | } |