Line data Source code
1 : /* crypto/x509/x509name.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 :
67 0 : int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)
68 : {
69 : ASN1_OBJECT *obj;
70 :
71 0 : obj = OBJ_nid2obj(nid);
72 0 : if (obj == NULL)
73 : return (-1);
74 0 : return (X509_NAME_get_text_by_OBJ(name, obj, buf, len));
75 : }
76 :
77 0 : int X509_NAME_get_text_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, char *buf,
78 : int len)
79 : {
80 : int i;
81 : ASN1_STRING *data;
82 :
83 0 : i = X509_NAME_get_index_by_OBJ(name, obj, -1);
84 0 : if (i < 0)
85 : return (-1);
86 0 : data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
87 0 : i = (data->length > (len - 1)) ? (len - 1) : data->length;
88 0 : if (buf == NULL)
89 : return (data->length);
90 0 : memcpy(buf, data->data, i);
91 0 : buf[i] = '\0';
92 0 : return (i);
93 : }
94 :
95 0 : int X509_NAME_entry_count(X509_NAME *name)
96 : {
97 0 : if (name == NULL)
98 : return (0);
99 0 : return (sk_X509_NAME_ENTRY_num(name->entries));
100 : }
101 :
102 803 : int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)
103 : {
104 : ASN1_OBJECT *obj;
105 :
106 803 : obj = OBJ_nid2obj(nid);
107 803 : if (obj == NULL)
108 : return (-2);
109 803 : return (X509_NAME_get_index_by_OBJ(name, obj, lastpos));
110 : }
111 :
112 : /* NOTE: you should be passsing -1, not 0 as lastpos */
113 803 : int X509_NAME_get_index_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int lastpos)
114 : {
115 : int n;
116 : X509_NAME_ENTRY *ne;
117 : STACK_OF(X509_NAME_ENTRY) *sk;
118 :
119 803 : if (name == NULL)
120 : return (-1);
121 803 : if (lastpos < 0)
122 : lastpos = -1;
123 803 : sk = name->entries;
124 803 : n = sk_X509_NAME_ENTRY_num(sk);
125 4015 : for (lastpos++; lastpos < n; lastpos++) {
126 4015 : ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
127 4015 : if (OBJ_cmp(ne->object, obj) == 0)
128 : return (lastpos);
129 : }
130 : return (-1);
131 : }
132 :
133 803 : X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc)
134 : {
135 803 : if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
136 803 : || loc < 0)
137 : return (NULL);
138 : else
139 803 : return (sk_X509_NAME_ENTRY_value(name->entries, loc));
140 : }
141 :
142 0 : X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
143 : {
144 : X509_NAME_ENTRY *ret;
145 : int i, n, set_prev, set_next;
146 : STACK_OF(X509_NAME_ENTRY) *sk;
147 :
148 0 : if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
149 0 : || loc < 0)
150 : return (NULL);
151 0 : sk = name->entries;
152 0 : ret = sk_X509_NAME_ENTRY_delete(sk, loc);
153 0 : n = sk_X509_NAME_ENTRY_num(sk);
154 0 : name->modified = 1;
155 0 : if (loc == n)
156 : return (ret);
157 :
158 : /* else we need to fixup the set field */
159 0 : if (loc != 0)
160 0 : set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
161 : else
162 0 : set_prev = ret->set - 1;
163 0 : set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
164 :
165 : /*-
166 : * set_prev is the previous set
167 : * set is the current set
168 : * set_next is the following
169 : * prev 1 1 1 1 1 1 1 1
170 : * set 1 1 2 2
171 : * next 1 1 2 2 2 2 3 2
172 : * so basically only if prev and next differ by 2, then
173 : * re-number down by 1
174 : */
175 0 : if (set_prev + 1 < set_next)
176 0 : for (i = loc; i < n; i++)
177 0 : sk_X509_NAME_ENTRY_value(sk, i)->set--;
178 0 : return (ret);
179 : }
180 :
181 0 : int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,
182 : unsigned char *bytes, int len, int loc,
183 : int set)
184 : {
185 : X509_NAME_ENTRY *ne;
186 : int ret;
187 0 : ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
188 0 : if (!ne)
189 : return 0;
190 0 : ret = X509_NAME_add_entry(name, ne, loc, set);
191 0 : X509_NAME_ENTRY_free(ne);
192 0 : return ret;
193 : }
194 :
195 0 : int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
196 : unsigned char *bytes, int len, int loc,
197 : int set)
198 : {
199 : X509_NAME_ENTRY *ne;
200 : int ret;
201 0 : ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
202 0 : if (!ne)
203 : return 0;
204 0 : ret = X509_NAME_add_entry(name, ne, loc, set);
205 0 : X509_NAME_ENTRY_free(ne);
206 0 : return ret;
207 : }
208 :
209 0 : int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
210 : const unsigned char *bytes, int len, int loc,
211 : int set)
212 : {
213 : X509_NAME_ENTRY *ne;
214 : int ret;
215 0 : ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
216 0 : if (!ne)
217 : return 0;
218 0 : ret = X509_NAME_add_entry(name, ne, loc, set);
219 0 : X509_NAME_ENTRY_free(ne);
220 0 : return ret;
221 : }
222 :
223 : /*
224 : * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
225 : * guy we are about to stomp on.
226 : */
227 0 : int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc,
228 : int set)
229 : {
230 : X509_NAME_ENTRY *new_name = NULL;
231 : int n, i, inc;
232 : STACK_OF(X509_NAME_ENTRY) *sk;
233 :
234 0 : if (name == NULL)
235 : return (0);
236 0 : sk = name->entries;
237 0 : n = sk_X509_NAME_ENTRY_num(sk);
238 0 : if (loc > n)
239 : loc = n;
240 0 : else if (loc < 0)
241 : loc = n;
242 :
243 0 : name->modified = 1;
244 :
245 0 : if (set == -1) {
246 0 : if (loc == 0) {
247 : set = 0;
248 : inc = 1;
249 : } else {
250 0 : set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
251 : inc = 0;
252 : }
253 : } else { /* if (set >= 0) */
254 :
255 0 : if (loc >= n) {
256 0 : if (loc != 0)
257 0 : set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
258 : else
259 : set = 0;
260 : } else
261 0 : set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
262 0 : inc = (set == 0) ? 1 : 0;
263 : }
264 :
265 0 : if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
266 : goto err;
267 0 : new_name->set = set;
268 0 : if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
269 0 : X509err(X509_F_X509_NAME_ADD_ENTRY, ERR_R_MALLOC_FAILURE);
270 0 : goto err;
271 : }
272 0 : if (inc) {
273 0 : n = sk_X509_NAME_ENTRY_num(sk);
274 0 : for (i = loc + 1; i < n; i++)
275 0 : sk_X509_NAME_ENTRY_value(sk, i - 1)->set += 1;
276 : }
277 : return (1);
278 : err:
279 0 : if (new_name != NULL)
280 0 : X509_NAME_ENTRY_free(new_name);
281 : return (0);
282 : }
283 :
284 0 : X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
285 : const char *field, int type,
286 : const unsigned char *bytes,
287 : int len)
288 : {
289 : ASN1_OBJECT *obj;
290 : X509_NAME_ENTRY *nentry;
291 :
292 0 : obj = OBJ_txt2obj(field, 0);
293 0 : if (obj == NULL) {
294 0 : X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT,
295 : X509_R_INVALID_FIELD_NAME);
296 0 : ERR_add_error_data(2, "name=", field);
297 0 : return (NULL);
298 : }
299 0 : nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
300 0 : ASN1_OBJECT_free(obj);
301 0 : return nentry;
302 : }
303 :
304 0 : X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
305 : int type, unsigned char *bytes,
306 : int len)
307 : {
308 : ASN1_OBJECT *obj;
309 : X509_NAME_ENTRY *nentry;
310 :
311 0 : obj = OBJ_nid2obj(nid);
312 0 : if (obj == NULL) {
313 0 : X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID, X509_R_UNKNOWN_NID);
314 0 : return (NULL);
315 : }
316 0 : nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
317 0 : ASN1_OBJECT_free(obj);
318 0 : return nentry;
319 : }
320 :
321 0 : X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
322 : ASN1_OBJECT *obj, int type,
323 : const unsigned char *bytes,
324 : int len)
325 : {
326 : X509_NAME_ENTRY *ret;
327 :
328 0 : if ((ne == NULL) || (*ne == NULL)) {
329 0 : if ((ret = X509_NAME_ENTRY_new()) == NULL)
330 : return (NULL);
331 : } else
332 : ret = *ne;
333 :
334 0 : if (!X509_NAME_ENTRY_set_object(ret, obj))
335 : goto err;
336 0 : if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
337 : goto err;
338 :
339 0 : if ((ne != NULL) && (*ne == NULL))
340 0 : *ne = ret;
341 0 : return (ret);
342 : err:
343 0 : if ((ne == NULL) || (ret != *ne))
344 0 : X509_NAME_ENTRY_free(ret);
345 : return (NULL);
346 : }
347 :
348 0 : int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, ASN1_OBJECT *obj)
349 : {
350 0 : if ((ne == NULL) || (obj == NULL)) {
351 0 : X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT,
352 : ERR_R_PASSED_NULL_PARAMETER);
353 0 : return (0);
354 : }
355 0 : ASN1_OBJECT_free(ne->object);
356 0 : ne->object = OBJ_dup(obj);
357 0 : return ((ne->object == NULL) ? 0 : 1);
358 : }
359 :
360 0 : int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
361 : const unsigned char *bytes, int len)
362 : {
363 : int i;
364 :
365 0 : if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
366 : return (0);
367 0 : if ((type > 0) && (type & MBSTRING_FLAG))
368 0 : return ASN1_STRING_set_by_NID(&ne->value, bytes,
369 : len, type,
370 0 : OBJ_obj2nid(ne->object)) ? 1 : 0;
371 0 : if (len < 0)
372 0 : len = strlen((const char *)bytes);
373 0 : i = ASN1_STRING_set(ne->value, bytes, len);
374 0 : if (!i)
375 : return (0);
376 0 : if (type != V_ASN1_UNDEF) {
377 0 : if (type == V_ASN1_APP_CHOOSE)
378 0 : ne->value->type = ASN1_PRINTABLE_type(bytes, len);
379 : else
380 0 : ne->value->type = type;
381 : }
382 : return (1);
383 : }
384 :
385 0 : ASN1_OBJECT *X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne)
386 : {
387 0 : if (ne == NULL)
388 : return (NULL);
389 0 : return (ne->object);
390 : }
391 :
392 803 : ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne)
393 : {
394 803 : if (ne == NULL)
395 : return (NULL);
396 803 : return (ne->value);
397 : }
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