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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 | |
68 int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x) | |
69 { | |
70 return sk_X509_ATTRIBUTE_num(x); | |
71 } | |
72 | |
73 int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid, | |
74 int lastpos) | |
75 { | |
76 ASN1_OBJECT *obj; | |
77 | |
78 obj=OBJ_nid2obj(nid); | |
79 if (obj == NULL) return(-2); | |
80 return(X509at_get_attr_by_OBJ(x,obj,lastpos)); | |
81 } | |
82 | |
83 int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj, | |
84 int lastpos) | |
85 { | |
86 int n; | |
87 X509_ATTRIBUTE *ex; | |
88 | |
89 if (sk == NULL) return(-1); | |
90 lastpos++; | |
91 if (lastpos < 0) | |
92 lastpos=0; | |
93 n=sk_X509_ATTRIBUTE_num(sk); | |
94 for ( ; lastpos < n; lastpos++) | |
95 { | |
96 ex=sk_X509_ATTRIBUTE_value(sk,lastpos); | |
97 if (OBJ_cmp(ex->object,obj) == 0) | |
98 return(lastpos); | |
99 } | |
100 return(-1); | |
101 } | |
102 | |
103 X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc) | |
104 { | |
105 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) | |
106 return NULL; | |
107 else | |
108 return sk_X509_ATTRIBUTE_value(x,loc); | |
109 } | |
110 | |
111 X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc) | |
112 { | |
113 X509_ATTRIBUTE *ret; | |
114 | |
115 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) | |
116 return(NULL); | |
117 ret=sk_X509_ATTRIBUTE_delete(x,loc); | |
118 return(ret); | |
119 } | |
120 | |
121 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x, | |
122 X509_ATTRIBUTE *attr) | |
123 { | |
124 X509_ATTRIBUTE *new_attr=NULL; | |
125 STACK_OF(X509_ATTRIBUTE) *sk=NULL; | |
126 | |
127 if (x == NULL) | |
128 { | |
129 X509err(X509_F_X509AT_ADD1_ATTR, ERR_R_PASSED_NULL_PARAMETER); | |
130 goto err2; | |
131 } | |
132 | |
133 if (*x == NULL) | |
134 { | |
135 if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL) | |
136 goto err; | |
137 } | |
138 else | |
139 sk= *x; | |
140 | |
141 if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL) | |
142 goto err2; | |
143 if (!sk_X509_ATTRIBUTE_push(sk,new_attr)) | |
144 goto err; | |
145 if (*x == NULL) | |
146 *x=sk; | |
147 return(sk); | |
148 err: | |
149 X509err(X509_F_X509AT_ADD1_ATTR,ERR_R_MALLOC_FAILURE); | |
150 err2: | |
151 if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr); | |
152 if (sk != NULL) sk_X509_ATTRIBUTE_free(sk); | |
153 return(NULL); | |
154 } | |
155 | |
156 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x, | |
157 const ASN1_OBJECT *obj, int type, | |
158 const unsigned char *bytes, int len) | |
159 { | |
160 X509_ATTRIBUTE *attr; | |
161 STACK_OF(X509_ATTRIBUTE) *ret; | |
162 attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len); | |
163 if(!attr) return 0; | |
164 ret = X509at_add1_attr(x, attr); | |
165 X509_ATTRIBUTE_free(attr); | |
166 return ret; | |
167 } | |
168 | |
169 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x, | |
170 int nid, int type, | |
171 const unsigned char *bytes, int len) | |
172 { | |
173 X509_ATTRIBUTE *attr; | |
174 STACK_OF(X509_ATTRIBUTE) *ret; | |
175 attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len); | |
176 if(!attr) return 0; | |
177 ret = X509at_add1_attr(x, attr); | |
178 X509_ATTRIBUTE_free(attr); | |
179 return ret; | |
180 } | |
181 | |
182 STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x, | |
183 const char *attrname, int type, | |
184 const unsigned char *bytes, int len) | |
185 { | |
186 X509_ATTRIBUTE *attr; | |
187 STACK_OF(X509_ATTRIBUTE) *ret; | |
188 attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len); | |
189 if(!attr) return 0; | |
190 ret = X509at_add1_attr(x, attr); | |
191 X509_ATTRIBUTE_free(attr); | |
192 return ret; | |
193 } | |
194 | |
195 void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x, | |
196 ASN1_OBJECT *obj, int lastpos, int type) | |
197 { | |
198 int i; | |
199 X509_ATTRIBUTE *at; | |
200 i = X509at_get_attr_by_OBJ(x, obj, lastpos); | |
201 if (i == -1) | |
202 return NULL; | |
203 if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1)) | |
204 return NULL; | |
205 at = X509at_get_attr(x, i); | |
206 if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1)) | |
207 return NULL; | |
208 return X509_ATTRIBUTE_get0_data(at, 0, type, NULL); | |
209 } | |
210 | |
211 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid, | |
212 int atrtype, const void *data, int len) | |
213 { | |
214 ASN1_OBJECT *obj; | |
215 X509_ATTRIBUTE *ret; | |
216 | |
217 obj=OBJ_nid2obj(nid); | |
218 if (obj == NULL) | |
219 { | |
220 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID); | |
221 return(NULL); | |
222 } | |
223 ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data,len); | |
224 if (ret == NULL) ASN1_OBJECT_free(obj); | |
225 return(ret); | |
226 } | |
227 | |
228 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr, | |
229 const ASN1_OBJECT *obj, int atrtype, const void *data, int len) | |
230 { | |
231 X509_ATTRIBUTE *ret; | |
232 | |
233 if ((attr == NULL) || (*attr == NULL)) | |
234 { | |
235 if ((ret=X509_ATTRIBUTE_new()) == NULL) | |
236 { | |
237 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC
_FAILURE); | |
238 return(NULL); | |
239 } | |
240 } | |
241 else | |
242 ret= *attr; | |
243 | |
244 if (!X509_ATTRIBUTE_set1_object(ret,obj)) | |
245 goto err; | |
246 if (!X509_ATTRIBUTE_set1_data(ret,atrtype,data,len)) | |
247 goto err; | |
248 | |
249 if ((attr != NULL) && (*attr == NULL)) *attr=ret; | |
250 return(ret); | |
251 err: | |
252 if ((attr == NULL) || (ret != *attr)) | |
253 X509_ATTRIBUTE_free(ret); | |
254 return(NULL); | |
255 } | |
256 | |
257 X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr, | |
258 const char *atrname, int type, const unsigned char *bytes, int l
en) | |
259 { | |
260 ASN1_OBJECT *obj; | |
261 X509_ATTRIBUTE *nattr; | |
262 | |
263 obj=OBJ_txt2obj(atrname, 0); | |
264 if (obj == NULL) | |
265 { | |
266 X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_TXT, | |
267 X509_R_INVALID_FIELD_NAME); | |
268 ERR_add_error_data(2, "name=", atrname); | |
269 return(NULL); | |
270 } | |
271 nattr = X509_ATTRIBUTE_create_by_OBJ(attr,obj,type,bytes,len); | |
272 ASN1_OBJECT_free(obj); | |
273 return nattr; | |
274 } | |
275 | |
276 int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj) | |
277 { | |
278 if ((attr == NULL) || (obj == NULL)) | |
279 return(0); | |
280 ASN1_OBJECT_free(attr->object); | |
281 attr->object=OBJ_dup(obj); | |
282 return(1); | |
283 } | |
284 | |
285 int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype, const void *dat
a, int len) | |
286 { | |
287 ASN1_TYPE *ttmp; | |
288 ASN1_STRING *stmp = NULL; | |
289 int atype = 0; | |
290 if (!attr) return 0; | |
291 if(attrtype & MBSTRING_FLAG) { | |
292 stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype, | |
293 OBJ_obj2nid(attr->object)); | |
294 if(!stmp) { | |
295 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_ASN1_LIB)
; | |
296 return 0; | |
297 } | |
298 atype = stmp->type; | |
299 } else if (len != -1){ | |
300 if(!(stmp = ASN1_STRING_type_new(attrtype))) goto err; | |
301 if(!ASN1_STRING_set(stmp, data, len)) goto err; | |
302 atype = attrtype; | |
303 } | |
304 if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err; | |
305 attr->single = 0; | |
306 /* This is a bit naughty because the attribute should really have | |
307 * at least one value but some types use and zero length SET and | |
308 * require this. | |
309 */ | |
310 if (attrtype == 0) | |
311 return 1; | |
312 if(!(ttmp = ASN1_TYPE_new())) goto err; | |
313 if ((len == -1) && !(attrtype & MBSTRING_FLAG)) | |
314 { | |
315 if (!ASN1_TYPE_set1(ttmp, attrtype, data)) | |
316 goto err; | |
317 } | |
318 else | |
319 ASN1_TYPE_set(ttmp, atype, stmp); | |
320 if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err; | |
321 return 1; | |
322 err: | |
323 X509err(X509_F_X509_ATTRIBUTE_SET1_DATA, ERR_R_MALLOC_FAILURE); | |
324 return 0; | |
325 } | |
326 | |
327 int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr) | |
328 { | |
329 if(!attr->single) return sk_ASN1_TYPE_num(attr->value.set); | |
330 if(attr->value.single) return 1; | |
331 return 0; | |
332 } | |
333 | |
334 ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr) | |
335 { | |
336 if (attr == NULL) return(NULL); | |
337 return(attr->object); | |
338 } | |
339 | |
340 void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx, | |
341 int atrtype, void *data) | |
342 { | |
343 ASN1_TYPE *ttmp; | |
344 ttmp = X509_ATTRIBUTE_get0_type(attr, idx); | |
345 if(!ttmp) return NULL; | |
346 if(atrtype != ASN1_TYPE_get(ttmp)){ | |
347 X509err(X509_F_X509_ATTRIBUTE_GET0_DATA, X509_R_WRONG_TYPE); | |
348 return NULL; | |
349 } | |
350 return ttmp->value.ptr; | |
351 } | |
352 | |
353 ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx) | |
354 { | |
355 if (attr == NULL) return(NULL); | |
356 if(idx >= X509_ATTRIBUTE_count(attr)) return NULL; | |
357 if(!attr->single) return sk_ASN1_TYPE_value(attr->value.set, idx); | |
358 else return attr->value.single; | |
359 } | |
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