1 /* crypto/x509/x509_att.c */
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.]
60 #include <openssl/stack.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>
68 int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
70 return sk_X509_ATTRIBUTE_num(x);
73 int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
78 obj = OBJ_nid2obj(nid);
81 return (X509at_get_attr_by_OBJ(x, obj, lastpos));
84 int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
85 ASN1_OBJECT *obj, int lastpos)
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)
104 X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
106 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
109 return sk_X509_ATTRIBUTE_value(x, loc);
112 X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
116 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
118 ret = sk_X509_ATTRIBUTE_delete(x, loc);
122 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
123 X509_ATTRIBUTE *attr)
125 X509_ATTRIBUTE *new_attr = NULL;
126 STACK_OF(X509_ATTRIBUTE) *sk = NULL;
129 X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER);
134 if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
139 if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
141 if (!sk_X509_ATTRIBUTE_push(sk, new_attr))
147 X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_MALLOC_FAILURE);
149 if (new_attr != NULL)
150 X509_ATTRIBUTE_free(new_attr);
152 sk_X509_ATTRIBUTE_free(sk);
156 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
157 **x, const ASN1_OBJECT *obj,
159 const unsigned char *bytes,
162 X509_ATTRIBUTE *attr;
163 STACK_OF(X509_ATTRIBUTE) *ret;
164 attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
167 ret = X509at_add1_attr(x, attr);
168 X509_ATTRIBUTE_free(attr);
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,
177 X509_ATTRIBUTE *attr;
178 STACK_OF(X509_ATTRIBUTE) *ret;
179 attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
182 ret = X509at_add1_attr(x, attr);
183 X509_ATTRIBUTE_free(attr);
187 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
188 **x, const char *attrname,
190 const unsigned char *bytes,
193 X509_ATTRIBUTE *attr;
194 STACK_OF(X509_ATTRIBUTE) *ret;
195 attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
198 ret = X509at_add1_attr(x, attr);
199 X509_ATTRIBUTE_free(attr);
203 void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
204 ASN1_OBJECT *obj, int lastpos, int type)
208 i = X509at_get_attr_by_OBJ(x, obj, lastpos);
211 if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
213 at = X509at_get_attr(x, i);
214 if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
216 return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
219 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
220 int atrtype, const void *data,
226 obj = OBJ_nid2obj(nid);
228 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID, X509_R_UNKNOWN_NID);
231 ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
233 ASN1_OBJECT_free(obj);
237 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
238 const ASN1_OBJECT *obj,
239 int atrtype, const void *data,
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);
253 if (!X509_ATTRIBUTE_set1_object(ret, obj))
255 if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
258 if ((attr != NULL) && (*attr == NULL))
262 if ((attr == NULL) || (ret != *attr))
263 X509_ATTRIBUTE_free(ret);
267 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
268 const char *atrname, int type,
269 const unsigned char *bytes,
273 X509_ATTRIBUTE *nattr;
275 obj = OBJ_txt2obj(atrname, 0);
277 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
278 X509_R_INVALID_FIELD_NAME);
279 ERR_add_error_data(2, "name=", atrname);
282 nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
283 ASN1_OBJECT_free(obj);
287 int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
289 if ((attr == NULL) || (obj == NULL))
291 ASN1_OBJECT_free(attr->object);
292 attr->object = OBJ_dup(obj);
296 int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
297 const void *data, int len)
300 ASN1_STRING *stmp = NULL;
304 if (attrtype & MBSTRING_FLAG) {
305 stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
306 OBJ_obj2nid(attr->object));
308 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB);
312 } else if (len != -1) {
313 if (!(stmp = ASN1_STRING_type_new(attrtype)))
315 if (!ASN1_STRING_set(stmp, data, len))
319 if (!(attr->value.set = sk_ASN1_TYPE_new_null()))
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
329 if (!(ttmp = ASN1_TYPE_new()))
331 if ((len == -1) && !(attrtype & MBSTRING_FLAG)) {
332 if (!ASN1_TYPE_set1(ttmp, attrtype, data))
335 ASN1_TYPE_set(ttmp, atype, stmp);
336 if (!sk_ASN1_TYPE_push(attr->value.set, ttmp))
340 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE);
344 int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)
347 return sk_ASN1_TYPE_num(attr->value.set);
348 if (attr->value.single)
353 ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
357 return (attr->object);
360 void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
361 int atrtype, void *data)
364 ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
367 if (atrtype != ASN1_TYPE_get(ttmp)) {
368 X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE);
371 return ttmp->value.ptr;
374 ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
378 if (idx >= X509_ATTRIBUTE_count(attr))
381 return sk_ASN1_TYPE_value(attr->value.set, idx);
383 return attr->value.single;