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
X509_NAME_get_text_by_NID(const X509_NAME * name,int nid,char * buf,int len)69 int X509_NAME_get_text_by_NID(const X509_NAME *name, int nid, char *buf,
70 int len)
71 {
72 const ASN1_OBJECT *obj;
73
74 obj = OBJ_nid2obj(nid);
75 if (obj == NULL)
76 return (-1);
77 return (X509_NAME_get_text_by_OBJ(name, obj, buf, len));
78 }
79
X509_NAME_get_text_by_OBJ(const X509_NAME * name,const ASN1_OBJECT * obj,char * buf,int len)80 int X509_NAME_get_text_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
81 char *buf, int len)
82 {
83 int i;
84 ASN1_STRING *data;
85
86 i = X509_NAME_get_index_by_OBJ(name, obj, -1);
87 if (i < 0)
88 return (-1);
89 data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
90 i = (data->length > (len - 1)) ? (len - 1) : data->length;
91 if (buf == NULL)
92 return (data->length);
93 OPENSSL_memcpy(buf, data->data, i);
94 buf[i] = '\0';
95 return (i);
96 }
97
X509_NAME_entry_count(const X509_NAME * name)98 int X509_NAME_entry_count(const X509_NAME *name)
99 {
100 if (name == NULL)
101 return (0);
102 return (sk_X509_NAME_ENTRY_num(name->entries));
103 }
104
X509_NAME_get_index_by_NID(const X509_NAME * name,int nid,int lastpos)105 int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
106 {
107 const ASN1_OBJECT *obj;
108
109 obj = OBJ_nid2obj(nid);
110 if (obj == NULL)
111 return (-2);
112 return (X509_NAME_get_index_by_OBJ(name, obj, lastpos));
113 }
114
115 /* NOTE: you should be passsing -1, not 0 as lastpos */
X509_NAME_get_index_by_OBJ(const X509_NAME * name,const ASN1_OBJECT * obj,int lastpos)116 int X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
117 int lastpos)
118 {
119 int n;
120 X509_NAME_ENTRY *ne;
121 STACK_OF(X509_NAME_ENTRY) *sk;
122
123 if (name == NULL)
124 return (-1);
125 if (lastpos < 0)
126 lastpos = -1;
127 sk = name->entries;
128 n = sk_X509_NAME_ENTRY_num(sk);
129 for (lastpos++; lastpos < n; lastpos++) {
130 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
131 if (OBJ_cmp(ne->object, obj) == 0)
132 return (lastpos);
133 }
134 return (-1);
135 }
136
X509_NAME_get_entry(const X509_NAME * name,int loc)137 X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
138 {
139 if (name == NULL || loc < 0
140 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
141 return (NULL);
142 else
143 return (sk_X509_NAME_ENTRY_value(name->entries, loc));
144 }
145
X509_NAME_delete_entry(X509_NAME * name,int loc)146 X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
147 {
148 X509_NAME_ENTRY *ret;
149 int i, n, set_prev, set_next;
150 STACK_OF(X509_NAME_ENTRY) *sk;
151
152 if (name == NULL || loc < 0
153 || sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc)
154 return (NULL);
155 sk = name->entries;
156 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
157 n = sk_X509_NAME_ENTRY_num(sk);
158 name->modified = 1;
159 if (loc == n)
160 return (ret);
161
162 /* else we need to fixup the set field */
163 if (loc != 0)
164 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
165 else
166 set_prev = ret->set - 1;
167 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
168
169 /*
170 * set_prev is the previous set set is the current set set_next is the
171 * 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
172 * basically only if prev and next differ by 2, then re-number down by 1
173 */
174 if (set_prev + 1 < set_next)
175 for (i = loc; i < n; i++)
176 sk_X509_NAME_ENTRY_value(sk, i)->set--;
177 return (ret);
178 }
179
X509_NAME_add_entry_by_OBJ(X509_NAME * name,ASN1_OBJECT * obj,int type,const unsigned char * bytes,int len,int loc,int set)180 int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type,
181 const unsigned char *bytes, int len, int loc,
182 int set)
183 {
184 X509_NAME_ENTRY *ne;
185 int ret;
186 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
187 if (!ne)
188 return 0;
189 ret = X509_NAME_add_entry(name, ne, loc, set);
190 X509_NAME_ENTRY_free(ne);
191 return ret;
192 }
193
X509_NAME_add_entry_by_NID(X509_NAME * name,int nid,int type,const unsigned char * bytes,int len,int loc,int set)194 int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
195 const unsigned char *bytes, int len, int loc,
196 int set)
197 {
198 X509_NAME_ENTRY *ne;
199 int ret;
200 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
201 if (!ne)
202 return 0;
203 ret = X509_NAME_add_entry(name, ne, loc, set);
204 X509_NAME_ENTRY_free(ne);
205 return ret;
206 }
207
X509_NAME_add_entry_by_txt(X509_NAME * name,const char * field,int type,const unsigned char * bytes,int len,int loc,int set)208 int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
209 const unsigned char *bytes, int len, int loc,
210 int set)
211 {
212 X509_NAME_ENTRY *ne;
213 int ret;
214 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
215 if (!ne)
216 return 0;
217 ret = X509_NAME_add_entry(name, ne, loc, set);
218 X509_NAME_ENTRY_free(ne);
219 return ret;
220 }
221
222 /*
223 * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
224 * guy we are about to stomp on.
225 */
X509_NAME_add_entry(X509_NAME * name,X509_NAME_ENTRY * ne,int loc,int set)226 int X509_NAME_add_entry(X509_NAME *name, X509_NAME_ENTRY *ne, int loc,
227 int set)
228 {
229 X509_NAME_ENTRY *new_name = NULL;
230 int n, i, inc;
231 STACK_OF(X509_NAME_ENTRY) *sk;
232
233 if (name == NULL)
234 return (0);
235 sk = name->entries;
236 n = sk_X509_NAME_ENTRY_num(sk);
237 if (loc > n)
238 loc = n;
239 else if (loc < 0)
240 loc = n;
241
242 inc = (set == 0);
243 name->modified = 1;
244
245 if (set == -1) {
246 if (loc == 0) {
247 set = 0;
248 inc = 1;
249 } else {
250 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
251 }
252 } else { /* if (set >= 0) */
253
254 if (loc >= n) {
255 if (loc != 0)
256 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
257 else
258 set = 0;
259 } else
260 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
261 }
262
263 if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
264 goto err;
265 new_name->set = set;
266 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
267 OPENSSL_PUT_ERROR(X509, ERR_R_MALLOC_FAILURE);
268 goto err;
269 }
270 if (inc) {
271 n = sk_X509_NAME_ENTRY_num(sk);
272 for (i = loc + 1; i < n; i++)
273 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
274 }
275 return (1);
276 err:
277 if (new_name != NULL)
278 X509_NAME_ENTRY_free(new_name);
279 return (0);
280 }
281
X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY ** ne,const char * field,int type,const unsigned char * bytes,int len)282 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
283 const char *field, int type,
284 const unsigned char *bytes,
285 int len)
286 {
287 ASN1_OBJECT *obj;
288 X509_NAME_ENTRY *nentry;
289
290 obj = OBJ_txt2obj(field, 0);
291 if (obj == NULL) {
292 OPENSSL_PUT_ERROR(X509, X509_R_INVALID_FIELD_NAME);
293 ERR_add_error_data(2, "name=", field);
294 return (NULL);
295 }
296 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
297 ASN1_OBJECT_free(obj);
298 return nentry;
299 }
300
X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY ** ne,int nid,int type,const unsigned char * bytes,int len)301 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
302 int type,
303 const unsigned char *bytes,
304 int len)
305 {
306 const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
307 if (obj == NULL) {
308 OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID);
309 return NULL;
310 }
311 return X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
312 }
313
X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY ** ne,const ASN1_OBJECT * obj,int type,const unsigned char * bytes,int len)314 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
315 const ASN1_OBJECT *obj,
316 int type,
317 const unsigned char *bytes,
318 int len)
319 {
320 X509_NAME_ENTRY *ret;
321
322 if ((ne == NULL) || (*ne == NULL)) {
323 if ((ret = X509_NAME_ENTRY_new()) == NULL)
324 return (NULL);
325 } else
326 ret = *ne;
327
328 if (!X509_NAME_ENTRY_set_object(ret, obj))
329 goto err;
330 if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
331 goto err;
332
333 if ((ne != NULL) && (*ne == NULL))
334 *ne = ret;
335 return (ret);
336 err:
337 if ((ne == NULL) || (ret != *ne))
338 X509_NAME_ENTRY_free(ret);
339 return (NULL);
340 }
341
X509_NAME_ENTRY_set_object(X509_NAME_ENTRY * ne,const ASN1_OBJECT * obj)342 int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
343 {
344 if ((ne == NULL) || (obj == NULL)) {
345 OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER);
346 return (0);
347 }
348 ASN1_OBJECT_free(ne->object);
349 ne->object = OBJ_dup(obj);
350 return ((ne->object == NULL) ? 0 : 1);
351 }
352
X509_NAME_ENTRY_set_data(X509_NAME_ENTRY * ne,int type,const unsigned char * bytes,int len)353 int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
354 const unsigned char *bytes, int len)
355 {
356 int i;
357
358 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
359 return (0);
360 if ((type > 0) && (type & MBSTRING_FLAG))
361 return ASN1_STRING_set_by_NID(&ne->value, bytes,
362 len, type,
363 OBJ_obj2nid(ne->object)) ? 1 : 0;
364 if (len < 0)
365 len = strlen((const char *)bytes);
366 i = ASN1_STRING_set(ne->value, bytes, len);
367 if (!i)
368 return (0);
369 if (type != V_ASN1_UNDEF) {
370 if (type == V_ASN1_APP_CHOOSE)
371 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
372 else
373 ne->value->type = type;
374 }
375 return (1);
376 }
377
X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY * ne)378 ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
379 {
380 if (ne == NULL)
381 return (NULL);
382 return (ne->object);
383 }
384
X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY * ne)385 ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
386 {
387 if (ne == NULL)
388 return (NULL);
389 return (ne->value);
390 }
391