1 /* crypto/x509/x509_att.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 #include <openssl/x509v3.h>
67
X509at_get_attr_count(const STACK_OF (X509_ATTRIBUTE)* x)68 int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
69 {
70 if (!x) return 0;
71 return(sk_X509_ATTRIBUTE_num(x));
72 }
73
X509at_get_attr_by_NID(const STACK_OF (X509_ATTRIBUTE)* x,int nid,int lastpos)74 int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
75 int lastpos)
76 {
77 ASN1_OBJECT *obj;
78
79 obj=OBJ_nid2obj(nid);
80 if (obj == NULL) return(-2);
81 return(X509at_get_attr_by_OBJ(x,obj,lastpos));
82 }
83
X509at_get_attr_by_OBJ(const STACK_OF (X509_ATTRIBUTE)* sk,ASN1_OBJECT * obj,int lastpos)84 int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj,
85 int lastpos)
86 {
87 int n;
88 X509_ATTRIBUTE *ex;
89
90 if (sk == NULL) return(-1);
91 lastpos++;
92 if (lastpos < 0)
93 lastpos=0;
94 n=sk_X509_ATTRIBUTE_num(sk);
95 for ( ; lastpos < n; lastpos++)
96 {
97 ex=sk_X509_ATTRIBUTE_value(sk,lastpos);
98 if (OBJ_cmp(ex->object,obj) == 0)
99 return(lastpos);
100 }
101 return(-1);
102 }
103
X509at_get_attr(const STACK_OF (X509_ATTRIBUTE)* x,int loc)104 X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
105 {
106 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
107 return NULL;
108 else
109 return sk_X509_ATTRIBUTE_value(x,loc);
110 }
111
X509at_delete_attr(STACK_OF (X509_ATTRIBUTE)* x,int loc)112 X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
113 {
114 X509_ATTRIBUTE *ret;
115
116 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
117 return(NULL);
118 ret=sk_X509_ATTRIBUTE_delete(x,loc);
119 return(ret);
120 }
121
STACK_OF(X509_ATTRIBUTE)122 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
123 X509_ATTRIBUTE *attr)
124 {
125 X509_ATTRIBUTE *new_attr=NULL;
126 STACK_OF(X509_ATTRIBUTE) *sk=NULL;
127
128 if (x == NULL)
129 {
130 X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER);
131 goto err2;
132 }
133
134 if (*x == NULL)
135 {
136 if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL)
137 goto err;
138 }
139 else
140 sk= *x;
141
142 if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL)
143 goto err2;
144 if (!sk_X509_ATTRIBUTE_push(sk,new_attr))
145 goto err;
146 if (*x == NULL)
147 *x=sk;
148 return(sk);
149 err:
150 X509err(X509_F_X509AT_ADD1_ATTR,ERR_R_MALLOC_FAILURE);
151 err2:
152 if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr);
153 if (sk != NULL) sk_X509_ATTRIBUTE_free(sk);
154 return(NULL);
155 }
156
STACK_OF(X509_ATTRIBUTE)157 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x,
158 const ASN1_OBJECT *obj, int type,
159 const unsigned char *bytes, int len)
160 {
161 X509_ATTRIBUTE *attr;
162 STACK_OF(X509_ATTRIBUTE) *ret;
163 attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
164 if(!attr) return 0;
165 ret = X509at_add1_attr(x, attr);
166 X509_ATTRIBUTE_free(attr);
167 return ret;
168 }
169
STACK_OF(X509_ATTRIBUTE)170 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x,
171 int nid, int type,
172 const unsigned char *bytes, int len)
173 {
174 X509_ATTRIBUTE *attr;
175 STACK_OF(X509_ATTRIBUTE) *ret;
176 attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
177 if(!attr) return 0;
178 ret = X509at_add1_attr(x, attr);
179 X509_ATTRIBUTE_free(attr);
180 return ret;
181 }
182
STACK_OF(X509_ATTRIBUTE)183 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x,
184 const char *attrname, int type,
185 const unsigned char *bytes, int len)
186 {
187 X509_ATTRIBUTE *attr;
188 STACK_OF(X509_ATTRIBUTE) *ret;
189 attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
190 if(!attr) return 0;
191 ret = X509at_add1_attr(x, attr);
192 X509_ATTRIBUTE_free(attr);
193 return ret;
194 }
195
X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE ** attr,int nid,int atrtype,const void * data,int len)196 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
197 int atrtype, const void *data, int len)
198 {
199 ASN1_OBJECT *obj;
200 X509_ATTRIBUTE *ret;
201
202 obj=OBJ_nid2obj(nid);
203 if (obj == NULL)
204 {
205 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID);
206 return(NULL);
207 }
208 ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data,len);
209 if (ret == NULL) ASN1_OBJECT_free(obj);
210 return(ret);
211 }
212
X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE ** attr,const ASN1_OBJECT * obj,int atrtype,const void * data,int len)213 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
214 const ASN1_OBJECT *obj, int atrtype, const void *data, int len)
215 {
216 X509_ATTRIBUTE *ret;
217
218 if ((attr == NULL) || (*attr == NULL))
219 {
220 if ((ret=X509_ATTRIBUTE_new()) == NULL)
221 {
222 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
223 return(NULL);
224 }
225 }
226 else
227 ret= *attr;
228
229 if (!X509_ATTRIBUTE_set1_object(ret,obj))
230 goto err;
231 if (!X509_ATTRIBUTE_set1_data(ret,atrtype,data,len))
232 goto err;
233
234 if ((attr != NULL) && (*attr == NULL)) *attr=ret;
235 return(ret);
236 err:
237 if ((attr == NULL) || (ret != *attr))
238 X509_ATTRIBUTE_free(ret);
239 return(NULL);
240 }
241
X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE ** attr,const char * atrname,int type,const unsigned char * bytes,int len)242 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
243 const char *atrname, int type, const unsigned char *bytes, int len)
244 {
245 ASN1_OBJECT *obj;
246 X509_ATTRIBUTE *nattr;
247
248 obj=OBJ_txt2obj(atrname, 0);
249 if (obj == NULL)
250 {
251 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT,
252 X509_R_INVALID_FIELD_NAME);
253 ERR_add_error_data(2, "name=", atrname);
254 return(NULL);
255 }
256 nattr = X509_ATTRIBUTE_create_by_OBJ(attr,obj,type,bytes,len);
257 ASN1_OBJECT_free(obj);
258 return nattr;
259 }
260
X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE * attr,const ASN1_OBJECT * obj)261 int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
262 {
263 if ((attr == NULL) || (obj == NULL))
264 return(0);
265 ASN1_OBJECT_free(attr->object);
266 attr->object=OBJ_dup(obj);
267 return(1);
268 }
269
X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE * attr,int attrtype,const void * data,int len)270 int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *data, int len)
271 {
272 ASN1_TYPE *ttmp;
273 ASN1_STRING *stmp;
274 int atype;
275 if (!attr) return 0;
276 if(attrtype & MBSTRING_FLAG) {
277 stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
278 OBJ_obj2nid(attr->object));
279 if(!stmp) {
280 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB);
281 return 0;
282 }
283 atype = stmp->type;
284 } else {
285 if(!(stmp = ASN1_STRING_type_new(attrtype))) goto err;
286 if(!ASN1_STRING_set(stmp, data, len)) goto err;
287 atype = attrtype;
288 }
289 if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err;
290 if(!(ttmp = ASN1_TYPE_new())) goto err;
291 if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err;
292 attr->single = 0;
293 ASN1_TYPE_set(ttmp, atype, stmp);
294 return 1;
295 err:
296 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE);
297 return 0;
298 }
299
X509_ATTRIBUTE_count(X509_ATTRIBUTE * attr)300 int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr)
301 {
302 if(!attr->single) return sk_ASN1_TYPE_num(attr->value.set);
303 if(attr->value.single) return 1;
304 return 0;
305 }
306
X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE * attr)307 ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
308 {
309 if (attr == NULL) return(NULL);
310 return(attr->object);
311 }
312
X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE * attr,int idx,int atrtype,void * data)313 void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
314 int atrtype, void *data)
315 {
316 ASN1_TYPE *ttmp;
317 ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
318 if(!ttmp) return NULL;
319 if(atrtype != ASN1_TYPE_get(ttmp)){
320 X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE);
321 return NULL;
322 }
323 return ttmp->value.ptr;
324 }
325
X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE * attr,int idx)326 ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
327 {
328 if (attr == NULL) return(NULL);
329 if(idx >= X509_ATTRIBUTE_count(attr)) return NULL;
330 if(!attr->single) return sk_ASN1_TYPE_value(attr->value.set, idx);
331 else return attr->value.single;
332 }
333