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.
7 *
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).
14 *
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.
21 *
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 :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
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.
51 *
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#include <string.h>
58
59#include <openssl/asn1.h>
60#include <openssl/err.h>
61#include <openssl/evp.h>
62#include <openssl/obj.h>
63#include <openssl/stack.h>
64#include <openssl/x509.h>
65
66#include "../internal.h"
67
68
69int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)
70{
71 const ASN1_OBJECT *obj;
72
73 obj = OBJ_nid2obj(nid);
74 if (obj == NULL)
75 return (-1);
76 return (X509_NAME_get_text_by_OBJ(name, obj, buf, len));
77}
78
79int X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
80 char *buf, int len)
81{
82 int i;
83 ASN1_STRING *data;
84
85 i = X509_NAME_get_index_by_OBJ(name, obj, -1);
86 if (i < 0)
87 return (-1);
88 data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
89 i = (data->length > (len - 1)) ? (len - 1) : data->length;
90 if (buf == NULL)
91 return (data->length);
92 OPENSSL_memcpy(buf, data->data, i);
93 buf[i] = '\0';
94 return (i);
95}
96
97int X509_NAME_entry_count(X509_NAME *name)
98{
99 if (name == NULL)
100 return (0);
101 return (sk_X509_NAME_ENTRY_num(name->entries));
102}
103
104int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)
105{
106 const ASN1_OBJECT *obj;
107
108 obj = OBJ_nid2obj(nid);
109 if (obj == NULL)
110 return (-2);
111 return (X509_NAME_get_index_by_OBJ(name, obj, lastpos));
112}
113
114/* NOTE: you should be passsing -1, not 0 as lastpos */
115int X509_NAME_get_index_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
116 int lastpos)
117{
118 int n;
119 X509_NAME_ENTRY *ne;
120 STACK_OF(X509_NAME_ENTRY) *sk;
121
122 if (name == NULL)
123 return (-1);
124 if (lastpos < 0)
125 lastpos = -1;
126 sk = name->entries;
127 n = sk_X509_NAME_ENTRY_num(sk);
128 for (lastpos++; lastpos < n; lastpos++) {
129 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
130 if (OBJ_cmp(ne->object, obj) == 0)
131 return (lastpos);
132 }
133 return (-1);
134}
135
136X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc)
137{
138 if (name == NULL || loc < 0
139 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
140 return (NULL);
141 else
142 return (sk_X509_NAME_ENTRY_value(name->entries, loc));
143}
144
145X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
146{
147 X509_NAME_ENTRY *ret;
148 int i, n, set_prev, set_next;
149 STACK_OF(X509_NAME_ENTRY) *sk;
150
151 if (name == NULL || loc < 0
152 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
153 return (NULL);
154 sk = name->entries;
155 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
156 n = sk_X509_NAME_ENTRY_num(sk);
157 name->modified = 1;
158 if (loc == n)
159 return (ret);
160
161 /* else we need to fixup the set field */
162 if (loc != 0)
163 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
164 else
165 set_prev = ret->set - 1;
166 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
167
168 /*
169 * set_prev is the previous set set is the current set set_next is the
170 * following prev 1 1 1 1 1 1 1 1 set 1 1 2 2 next 1 1 2 2 2 2 3 2 so
171 * basically only if prev and next differ by 2, then re-number down by 1
172 */
173 if (set_prev + 1 < set_next)
174 for (i = loc; i < n; i++)
175 sk_X509_NAME_ENTRY_value(sk, i)->set--;
176 return (ret);
177}
178
179int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,
180 unsigned char *bytes, int len, int loc,
181 int set)
182{
183 X509_NAME_ENTRY *ne;
184 int ret;
185 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
186 if (!ne)
187 return 0;
188 ret = X509_NAME_add_entry(name, ne, loc, set);
189 X509_NAME_ENTRY_free(ne);
190 return ret;
191}
192
193int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
194 unsigned char *bytes, int len, int loc,
195 int set)
196{
197 X509_NAME_ENTRY *ne;
198 int ret;
199 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
200 if (!ne)
201 return 0;
202 ret = X509_NAME_add_entry(name, ne, loc, set);
203 X509_NAME_ENTRY_free(ne);
204 return ret;
205}
206
207int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
208 const unsigned char *bytes, int len, int loc,
209 int set)
210{
211 X509_NAME_ENTRY *ne;
212 int ret;
213 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
214 if (!ne)
215 return 0;
216 ret = X509_NAME_add_entry(name, ne, loc, set);
217 X509_NAME_ENTRY_free(ne);
218 return ret;
219}
220
221/*
222 * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
223 * guy we are about to stomp on.
224 */
225int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc,
226 int set)
227{
228 X509_NAME_ENTRY *new_name = NULL;
229 int n, i, inc;
230 STACK_OF(X509_NAME_ENTRY) *sk;
231
232 if (name == NULL)
233 return (0);
234 sk = name->entries;
235 n = sk_X509_NAME_ENTRY_num(sk);
236 if (loc > n)
237 loc = n;
238 else if (loc < 0)
239 loc = n;
240
241 inc = (set == 0);
242 name->modified = 1;
243
244 if (set == -1) {
245 if (loc == 0) {
246 set = 0;
247 inc = 1;
248 } else {
249 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
250 }
251 } else { /* if (set >= 0) */
252
253 if (loc >= n) {
254 if (loc != 0)
255 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
256 else
257 set = 0;
258 } else
259 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
260 }
261
262 if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
263 goto err;
264 new_name->set = set;
265 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
266 OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
267 goto err;
268 }
269 if (inc) {
270 n = sk_X509_NAME_ENTRY_num(sk);
271 for (i = loc + 1; i < n; i++)
272 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
273 }
274 return (1);
275 err:
276 if (new_name != NULL)
277 X509_NAME_ENTRY_free(new_name);
278 return (0);
279}
280
281X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
282 const char *field, int type,
283 const unsigned char *bytes,
284 int len)
285{
286 ASN1_OBJECT *obj;
287 X509_NAME_ENTRY *nentry;
288
289 obj = OBJ_txt2obj(field, 0);
290 if (obj == NULL) {
291 OPENSSL_PUT_ERROR(X509, X509_R_INVALID_FIELD_NAME);
292 ERR_add_error_data(2, "name=", field);
293 return (NULL);
294 }
295 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
296 ASN1_OBJECT_free(obj);
297 return nentry;
298}
299
300X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
301 int type, unsigned char *bytes,
302 int len)
303{
304 const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
305 if (obj == NULL) {
306 OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID);
307 return NULL;
308 }
309 return X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
310}
311
312X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
313 const ASN1_OBJECT *obj,
314 int type,
315 const unsigned char *bytes,
316 int len)
317{
318 X509_NAME_ENTRY *ret;
319
320 if ((ne == NULL) || (*ne == NULL)) {
321 if ((ret = X509_NAME_ENTRY_new()) == NULL)
322 return (NULL);
323 } else
324 ret = *ne;
325
326 if (!X509_NAME_ENTRY_set_object(ret, obj))
327 goto err;
328 if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
329 goto err;
330
331 if ((ne != NULL) && (*ne == NULL))
332 *ne = ret;
333 return (ret);
334 err:
335 if ((ne == NULL) || (ret != *ne))
336 X509_NAME_ENTRY_free(ret);
337 return (NULL);
338}
339
340int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
341{
342 if ((ne == NULL) || (obj == NULL)) {
343 OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER);
344 return (0);
345 }
346 ASN1_OBJECT_free(ne->object);
347 ne->object = OBJ_dup(obj);
348 return ((ne->object == NULL) ? 0 : 1);
349}
350
351int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
352 const unsigned char *bytes, int len)
353{
354 int i;
355
356 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
357 return (0);
358 if ((type > 0) && (type & MBSTRING_FLAG))
359 return ASN1_STRING_set_by_NID(&ne->value, bytes,
360 len, type,
361 OBJ_obj2nid(ne->object)) ? 1 : 0;
362 if (len < 0)
363 len = strlen((const char *)bytes);
364 i = ASN1_STRING_set(ne->value, bytes, len);
365 if (!i)
366 return (0);
367 if (type != V_ASN1_UNDEF) {
368 if (type == V_ASN1_APP_CHOOSE)
369 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
370 else
371 ne->value->type = type;
372 }
373 return (1);
374}
375
376ASN1_OBJECT *X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne)
377{
378 if (ne == NULL)
379 return (NULL);
380 return (ne->object);
381}
382
383ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne)
384{
385 if (ne == NULL)
386 return (NULL);
387 return (ne->value);
388}
389