1 /* crypto/x509/x509_v3.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.]
68 static X509_EXTENSION_METHOD *find_by_nid(int nid);
69 static int xem_cmp(X509_EXTENSION_METHOD **a, X509_EXTENSION_METHOD **b);
71 static X509_EXTENSION_METHOD *find_by_nid();
75 static STACK *extensions=NULL;
77 int X509v3_get_ext_count(x)
80 if (x == NULL) return(0);
84 int X509v3_get_ext_by_NID(x,nid,lastpos)
92 if (obj == NULL) return(-2);
93 return(X509v3_get_ext_by_OBJ(x,obj,lastpos));
96 int X509v3_get_ext_by_OBJ(sk,obj,lastpos)
104 if (sk == NULL) return(-1);
109 for ( ; lastpos < n; lastpos++)
111 ex=(X509_EXTENSION *)sk_value(sk,lastpos);
112 if (OBJ_cmp(ex->object,obj) == 0)
118 int X509v3_get_ext_by_critical(sk,crit,lastpos)
126 if (sk == NULL) return(-1);
131 for ( ; lastpos < n; lastpos++)
133 ex=(X509_EXTENSION *)sk_value(sk,lastpos);
134 if ( (ex->critical && crit) ||
135 (!ex->critical && !crit))
141 X509_EXTENSION *X509v3_get_ext(x,loc)
145 if ((x == NULL) || (sk_num(x) <= loc) || (loc < 0))
148 return((X509_EXTENSION *)sk_value(x,loc));
151 X509_EXTENSION *X509v3_delete_ext(x,loc)
157 if ((x == NULL) || (sk_num(x) <= loc) || (loc < 0))
159 ret=(X509_EXTENSION *)sk_delete(x,loc);
163 STACK *X509v3_add_ext(x,ex,loc)
168 X509_EXTENSION *new_ex=NULL;
172 if ((x != NULL) && (*x == NULL))
174 if ((sk=sk_new_null()) == NULL)
182 else if (loc < 0) loc=n;
184 if ((new_ex=X509_EXTENSION_dup(ex)) == NULL)
186 if (!sk_insert(sk,(char *)new_ex,loc))
188 if ((x != NULL) && (*x == NULL))
192 X509err(X509_F_X509V3_ADD_EXT,ERR_R_MALLOC_FAILURE);
194 if (new_ex != NULL) X509_EXTENSION_free(new_ex);
195 if (sk != NULL) sk_free(sk);
199 X509_EXTENSION *X509_EXTENSION_create_by_NID(ex,nid,crit,data)
203 ASN1_OCTET_STRING *data;
208 obj=OBJ_nid2obj(nid);
211 X509err(X509_F_X509_EXTENSION_CREATE_BY_NID,X509_R_UNKNOWN_NID);
214 ret=X509_EXTENSION_create_by_OBJ(ex,obj,crit,data);
215 if (ret == NULL) ASN1_OBJECT_free(obj);
219 X509_EXTENSION *X509_EXTENSION_create_by_OBJ(ex,obj,crit,data)
223 ASN1_OCTET_STRING *data;
227 if ((ex == NULL) || (*ex == NULL))
229 if ((ret=X509_EXTENSION_new()) == NULL)
231 X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
238 if (!X509_EXTENSION_set_object(ret,obj))
240 if (!X509_EXTENSION_set_critical(ret,crit))
242 if (!X509_EXTENSION_set_data(ret,data))
245 if ((ex != NULL) && (*ex == NULL)) *ex=ret;
248 if ((ex == NULL) || (ret != *ex))
249 X509_EXTENSION_free(ret);
253 int X509_EXTENSION_set_object(ex,obj)
257 if ((ex == NULL) || (obj == NULL))
259 ASN1_OBJECT_free(ex->object);
260 ex->object=OBJ_dup(obj);
264 int X509_EXTENSION_set_critical(ex,crit)
268 if (ex == NULL) return(0);
269 ex->critical=(crit)?0xFF:0;
273 int X509_EXTENSION_set_data(ex,data)
275 ASN1_OCTET_STRING *data;
279 if (ex == NULL) return(0);
280 i=ASN1_OCTET_STRING_set(ex->value,data->data,data->length);
285 ASN1_OBJECT *X509_EXTENSION_get_object(ex)
288 if (ex == NULL) return(NULL);
292 ASN1_OCTET_STRING *X509_EXTENSION_get_data(ex)
295 if (ex == NULL) return(NULL);
299 int X509_EXTENSION_get_critical(ex)
302 if (ex == NULL) return(0);
303 return(ex->critical);
306 int X509v3_data_type_by_OBJ(obj)
311 nid=OBJ_obj2nid(obj);
312 if (nid == V_ASN1_UNDEF) return(V_ASN1_UNDEF);
313 return(X509v3_data_type_by_NID(nid));
316 int X509v3_data_type_by_NID(nid)
319 X509_EXTENSION_METHOD *x;
323 return(V_ASN1_UNDEF);
325 return(x->data_type);
328 int X509v3_pack_type_by_OBJ(obj)
333 nid=OBJ_obj2nid(obj);
334 if (nid == NID_undef) return(X509_EXT_PACK_UNKNOWN);
335 return(X509v3_pack_type_by_NID(nid));
338 int X509v3_pack_type_by_NID(nid)
341 X509_EXTENSION_METHOD *x;
345 return(X509_EXT_PACK_UNKNOWN);
347 return(x->pack_type);
350 static X509_EXTENSION_METHOD *find_by_nid(nid)
353 X509_EXTENSION_METHOD x;
357 if (extensions == NULL) return(NULL);
358 i=sk_find(extensions,(char *)&x);
362 return((X509_EXTENSION_METHOD *)sk_value(extensions,i));
365 static int xem_cmp(a,b)
366 X509_EXTENSION_METHOD **a,**b;
368 return((*a)->nid-(*b)->nid);
371 void X509v3_cleanup_extensions()
375 if (extensions != NULL)
377 for (i=0; i<sk_num(extensions); i++)
378 Free(sk_value(extensions,i));
384 int X509v3_add_extension(x)
385 X509_EXTENSION_METHOD *x;
387 X509_EXTENSION_METHOD *newx;
389 if (extensions == NULL)
391 extensions=sk_new(xem_cmp);
392 if (extensions == NULL) goto err;
394 newx=(X509_EXTENSION_METHOD *)Malloc(sizeof(X509_EXTENSION_METHOD));
395 if (newx == NULL) goto err;
397 newx->data_type=x->data_type;
398 newx->pack_type=x->pack_type;
399 if (!sk_push(extensions,(char *)newx))
406 X509err(X509_F_X509V3_ADD_EXTENSION,ERR_R_MALLOC_FAILURE);