1 /* $OpenBSD: x509name.c,v 1.27 2021/11/01 20:53:08 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 #include <openssl/asn1.h>
63 #include <openssl/err.h>
64 #include <openssl/evp.h>
65 #include <openssl/objects.h>
66 #include <openssl/stack.h>
67 #include <openssl/x509.h>
72 X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)
76 obj = OBJ_nid2obj(nid);
79 return (X509_NAME_get_text_by_OBJ(name, obj, buf, len));
83 X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, char *buf,
89 i = X509_NAME_get_index_by_OBJ(name, obj, -1);
92 data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
93 i = (data->length > (len - 1)) ? (len - 1) : data->length;
95 return (data->length);
97 memcpy(buf, data->data, i);
104 X509_NAME_entry_count(const X509_NAME *name)
108 return (sk_X509_NAME_ENTRY_num(name->entries));
112 X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
116 obj = OBJ_nid2obj(nid);
119 return (X509_NAME_get_index_by_OBJ(name, obj, lastpos));
122 /* NOTE: you should be passsing -1, not 0 as lastpos */
124 X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
129 STACK_OF(X509_NAME_ENTRY) *sk;
136 n = sk_X509_NAME_ENTRY_num(sk);
137 for (lastpos++; lastpos < n; lastpos++) {
138 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
139 if (OBJ_cmp(ne->object, obj) == 0)
146 X509_NAME_get_entry(const X509_NAME *name, int loc)
148 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc ||
152 return (sk_X509_NAME_ENTRY_value(name->entries, loc));
156 X509_NAME_delete_entry(X509_NAME *name, int loc)
158 X509_NAME_ENTRY *ret;
159 int i, n, set_prev, set_next;
160 STACK_OF(X509_NAME_ENTRY) *sk;
162 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc ||
166 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
167 n = sk_X509_NAME_ENTRY_num(sk);
172 /* else we need to fixup the set field */
174 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
176 set_prev = ret->set - 1;
177 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
179 /* set_prev is the previous set
180 * set is the current set
181 * set_next is the following
182 * prev 1 1 1 1 1 1 1 1
184 * next 1 1 2 2 2 2 3 2
185 * so basically only if prev and next differ by 2, then
186 * re-number down by 1 */
187 if (set_prev + 1 < set_next)
188 for (i = loc; i < n; i++)
189 sk_X509_NAME_ENTRY_value(sk, i)->set--;
194 X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
195 const unsigned char *bytes, int len, int loc, int set)
200 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
203 ret = X509_NAME_add_entry(name, ne, loc, set);
204 X509_NAME_ENTRY_free(ne);
209 X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
210 const unsigned char *bytes, int len, int loc, int set)
215 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
218 ret = X509_NAME_add_entry(name, ne, loc, set);
219 X509_NAME_ENTRY_free(ne);
224 X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
225 const unsigned char *bytes, int len, int loc, int set)
230 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
233 ret = X509_NAME_add_entry(name, ne, loc, set);
234 X509_NAME_ENTRY_free(ne);
238 /* if set is -1, append to previous set, 0 'a new one', and 1,
239 * prepend to the guy we are about to stomp on. */
241 X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
244 X509_NAME_ENTRY *new_name = NULL;
246 STACK_OF(X509_NAME_ENTRY) *sk;
251 n = sk_X509_NAME_ENTRY_num(sk);
264 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
265 } else /* if (set >= 0) */ {
268 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
272 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
275 /* OpenSSL has ASN1-generated X509_NAME_ENTRY_dup() without const. */
276 if ((new_name = X509_NAME_ENTRY_dup((X509_NAME_ENTRY *)ne)) == NULL)
279 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
280 X509error(ERR_R_MALLOC_FAILURE);
284 n = sk_X509_NAME_ENTRY_num(sk);
285 for (i = loc + 1; i < n; i++)
286 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
291 if (new_name != NULL)
292 X509_NAME_ENTRY_free(new_name);
297 X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
298 const char *field, int type, const unsigned char *bytes, int len)
301 X509_NAME_ENTRY *nentry;
303 obj = OBJ_txt2obj(field, 0);
305 X509error(X509_R_INVALID_FIELD_NAME);
306 ERR_asprintf_error_data("name=%s", field);
309 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
310 ASN1_OBJECT_free(obj);
315 X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid, int type,
316 const unsigned char *bytes, int len)
319 X509_NAME_ENTRY *nentry;
321 obj = OBJ_nid2obj(nid);
323 X509error(X509_R_UNKNOWN_NID);
326 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
327 ASN1_OBJECT_free(obj);
332 X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, const ASN1_OBJECT *obj,
333 int type, const unsigned char *bytes, int len)
335 X509_NAME_ENTRY *ret;
337 if ((ne == NULL) || (*ne == NULL)) {
338 if ((ret = X509_NAME_ENTRY_new()) == NULL)
343 if (!X509_NAME_ENTRY_set_object(ret, obj))
345 if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
348 if ((ne != NULL) && (*ne == NULL))
353 if ((ne == NULL) || (ret != *ne))
354 X509_NAME_ENTRY_free(ret);
359 X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
361 if ((ne == NULL) || (obj == NULL)) {
362 X509error(ERR_R_PASSED_NULL_PARAMETER);
365 ASN1_OBJECT_free(ne->object);
366 ne->object = OBJ_dup(obj);
367 return ((ne->object == NULL) ? 0 : 1);
371 X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
372 const unsigned char *bytes, int len)
376 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
378 if ((type > 0) && (type & MBSTRING_FLAG))
379 return ASN1_STRING_set_by_NID(&ne->value, bytes, len, type,
380 OBJ_obj2nid(ne->object)) ? 1 : 0;
382 len = strlen((const char *)bytes);
383 i = ASN1_STRING_set(ne->value, bytes, len);
386 if (type != V_ASN1_UNDEF) {
387 if (type == V_ASN1_APP_CHOOSE)
388 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
390 ne->value->type = type;
396 X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
404 X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
412 X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)