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b38f9f66 DSH |
1 | /* crypto/x509/x509_att.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. | |
0f113f3e | 8 | * |
b38f9f66 DSH |
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 | * |
b38f9f66 DSH |
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 | * |
b38f9f66 DSH |
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 |
b38f9f66 DSH |
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 | * |
b38f9f66 DSH |
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 | * |
b38f9f66 DSH |
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 | ||
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: | |
149 | if (new_attr != NULL) | |
150 | X509_ATTRIBUTE_free(new_attr); | |
151 | if (sk != NULL) | |
152 | sk_X509_ATTRIBUTE_free(sk); | |
153 | return (NULL); | |
b38f9f66 DSH |
154 | } |
155 | ||
0f113f3e MC |
156 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) |
157 | **x, const ASN1_OBJECT *obj, | |
158 | int type, | |
159 | const unsigned char *bytes, | |
160 | int len) | |
77b47b90 | 161 | { |
0f113f3e MC |
162 | X509_ATTRIBUTE *attr; |
163 | STACK_OF(X509_ATTRIBUTE) *ret; | |
164 | attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len); | |
165 | if (!attr) | |
166 | return 0; | |
167 | ret = X509at_add1_attr(x, attr); | |
168 | X509_ATTRIBUTE_free(attr); | |
169 | return ret; | |
77b47b90 DSH |
170 | } |
171 | ||
0f113f3e MC |
172 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) |
173 | **x, int nid, int type, | |
174 | const unsigned char *bytes, | |
175 | int len) | |
77b47b90 | 176 | { |
0f113f3e MC |
177 | X509_ATTRIBUTE *attr; |
178 | STACK_OF(X509_ATTRIBUTE) *ret; | |
179 | attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len); | |
180 | if (!attr) | |
181 | return 0; | |
182 | ret = X509at_add1_attr(x, attr); | |
183 | X509_ATTRIBUTE_free(attr); | |
184 | return ret; | |
77b47b90 DSH |
185 | } |
186 | ||
0f113f3e MC |
187 | STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) |
188 | **x, const char *attrname, | |
189 | int type, | |
190 | const unsigned char *bytes, | |
191 | int len) | |
77b47b90 | 192 | { |
0f113f3e MC |
193 | X509_ATTRIBUTE *attr; |
194 | STACK_OF(X509_ATTRIBUTE) *ret; | |
195 | attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len); | |
196 | if (!attr) | |
197 | return 0; | |
198 | ret = X509at_add1_attr(x, attr); | |
199 | X509_ATTRIBUTE_free(attr); | |
200 | return ret; | |
77b47b90 DSH |
201 | } |
202 | ||
4d318c79 | 203 | void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x, |
0f113f3e | 204 | ASN1_OBJECT *obj, int lastpos, int type) |
4d318c79 | 205 | { |
0f113f3e MC |
206 | int i; |
207 | X509_ATTRIBUTE *at; | |
208 | i = X509at_get_attr_by_OBJ(x, obj, lastpos); | |
209 | if (i == -1) | |
210 | return NULL; | |
211 | if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1)) | |
212 | return NULL; | |
213 | at = X509at_get_attr(x, i); | |
214 | if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1)) | |
215 | return NULL; | |
216 | return X509_ATTRIBUTE_get0_data(at, 0, type, NULL); | |
4d318c79 DSH |
217 | } |
218 | ||
b38f9f66 | 219 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid, |
0f113f3e MC |
220 | int atrtype, const void *data, |
221 | int len) | |
b38f9f66 | 222 | { |
0f113f3e MC |
223 | ASN1_OBJECT *obj; |
224 | X509_ATTRIBUTE *ret; | |
b38f9f66 | 225 | |
0f113f3e MC |
226 | obj = OBJ_nid2obj(nid); |
227 | if (obj == NULL) { | |
228 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID, X509_R_UNKNOWN_NID); | |
229 | return (NULL); | |
230 | } | |
231 | ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len); | |
232 | if (ret == NULL) | |
233 | ASN1_OBJECT_free(obj); | |
234 | return (ret); | |
b38f9f66 DSH |
235 | } |
236 | ||
237 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr, | |
0f113f3e MC |
238 | const ASN1_OBJECT *obj, |
239 | int atrtype, const void *data, | |
240 | int len) | |
b38f9f66 | 241 | { |
0f113f3e | 242 | X509_ATTRIBUTE *ret; |
b38f9f66 | 243 | |
0f113f3e MC |
244 | if ((attr == NULL) || (*attr == NULL)) { |
245 | if ((ret = X509_ATTRIBUTE_new()) == NULL) { | |
246 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ, | |
247 | ERR_R_MALLOC_FAILURE); | |
248 | return (NULL); | |
249 | } | |
250 | } else | |
251 | ret = *attr; | |
b38f9f66 | 252 | |
0f113f3e MC |
253 | if (!X509_ATTRIBUTE_set1_object(ret, obj)) |
254 | goto err; | |
255 | if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len)) | |
256 | goto err; | |
8528128b | 257 | |
0f113f3e MC |
258 | if ((attr != NULL) && (*attr == NULL)) |
259 | *attr = ret; | |
260 | return (ret); | |
261 | err: | |
262 | if ((attr == NULL) || (ret != *attr)) | |
263 | X509_ATTRIBUTE_free(ret); | |
264 | return (NULL); | |
b38f9f66 DSH |
265 | } |
266 | ||
77b47b90 | 267 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr, |
0f113f3e MC |
268 | const char *atrname, int type, |
269 | const unsigned char *bytes, | |
270 | int len) | |
271 | { | |
272 | ASN1_OBJECT *obj; | |
273 | X509_ATTRIBUTE *nattr; | |
77b47b90 | 274 | |
0f113f3e MC |
275 | obj = OBJ_txt2obj(atrname, 0); |
276 | if (obj == NULL) { | |
277 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT, | |
278 | X509_R_INVALID_FIELD_NAME); | |
279 | ERR_add_error_data(2, "name=", atrname); | |
280 | return (NULL); | |
281 | } | |
282 | nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len); | |
283 | ASN1_OBJECT_free(obj); | |
284 | return nattr; | |
285 | } | |
77b47b90 | 286 | |
f2a253e0 | 287 | int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj) |
b38f9f66 | 288 | { |
0f113f3e MC |
289 | if ((attr == NULL) || (obj == NULL)) |
290 | return (0); | |
291 | ASN1_OBJECT_free(attr->object); | |
292 | attr->object = OBJ_dup(obj); | |
293 | return (1); | |
b38f9f66 DSH |
294 | } |
295 | ||
0f113f3e MC |
296 | int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, |
297 | const void *data, int len) | |
b38f9f66 | 298 | { |
0f113f3e MC |
299 | ASN1_TYPE *ttmp; |
300 | ASN1_STRING *stmp = NULL; | |
301 | int atype = 0; | |
302 | if (!attr) | |
303 | return 0; | |
304 | if (attrtype & MBSTRING_FLAG) { | |
305 | stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype, | |
306 | OBJ_obj2nid(attr->object)); | |
307 | if (!stmp) { | |
308 | X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB); | |
309 | return 0; | |
310 | } | |
311 | atype = stmp->type; | |
312 | } else if (len != -1) { | |
313 | if (!(stmp = ASN1_STRING_type_new(attrtype))) | |
314 | goto err; | |
315 | if (!ASN1_STRING_set(stmp, data, len)) | |
316 | goto err; | |
317 | atype = attrtype; | |
318 | } | |
319 | if (!(attr->value.set = sk_ASN1_TYPE_new_null())) | |
320 | goto err; | |
321 | attr->single = 0; | |
322 | /* | |
323 | * This is a bit naughty because the attribute should really have at | |
324 | * least one value but some types use and zero length SET and require | |
325 | * this. | |
326 | */ | |
327 | if (attrtype == 0) | |
328 | return 1; | |
329 | if (!(ttmp = ASN1_TYPE_new())) | |
330 | goto err; | |
331 | if ((len == -1) && !(attrtype & MBSTRING_FLAG)) { | |
332 | if (!ASN1_TYPE_set1(ttmp, attrtype, data)) | |
333 | goto err; | |
334 | } else | |
335 | ASN1_TYPE_set(ttmp, atype, stmp); | |
336 | if (!sk_ASN1_TYPE_push(attr->value.set, ttmp)) | |
337 | goto err; | |
338 | return 1; | |
339 | err: | |
340 | X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE); | |
341 | return 0; | |
b38f9f66 DSH |
342 | } |
343 | ||
344 | int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr) | |
345 | { | |
0f113f3e MC |
346 | if (!attr->single) |
347 | return sk_ASN1_TYPE_num(attr->value.set); | |
348 | if (attr->value.single) | |
349 | return 1; | |
350 | return 0; | |
b38f9f66 DSH |
351 | } |
352 | ||
c7cb16a8 | 353 | ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr) |
b38f9f66 | 354 | { |
0f113f3e MC |
355 | if (attr == NULL) |
356 | return (NULL); | |
357 | return (attr->object); | |
b38f9f66 DSH |
358 | } |
359 | ||
c7cb16a8 | 360 | void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx, |
0f113f3e | 361 | int atrtype, void *data) |
b38f9f66 | 362 | { |
0f113f3e MC |
363 | ASN1_TYPE *ttmp; |
364 | ttmp = X509_ATTRIBUTE_get0_type(attr, idx); | |
365 | if (!ttmp) | |
366 | return NULL; | |
367 | if (atrtype != ASN1_TYPE_get(ttmp)) { | |
368 | X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE); | |
369 | return NULL; | |
370 | } | |
371 | return ttmp->value.ptr; | |
b38f9f66 DSH |
372 | } |
373 | ||
c7cb16a8 | 374 | ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx) |
b38f9f66 | 375 | { |
0f113f3e MC |
376 | if (attr == NULL) |
377 | return (NULL); | |
378 | if (idx >= X509_ATTRIBUTE_count(attr)) | |
379 | return NULL; | |
380 | if (!attr->single) | |
381 | return sk_ASN1_TYPE_value(attr->value.set, idx); | |
382 | else | |
383 | return attr->value.single; | |
b38f9f66 | 384 | } |