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.]
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>
67 int X509v3_get_ext_count(STACK *x)
69 if (x == NULL) return(0);
73 int X509v3_get_ext_by_NID(STACK *x, int nid, int lastpos)
78 if (obj == NULL) return(-2);
79 return(X509v3_get_ext_by_OBJ(x,obj,lastpos));
82 int X509v3_get_ext_by_OBJ(STACK *sk, ASN1_OBJECT *obj, int lastpos)
87 if (sk == NULL) return(-1);
92 for ( ; lastpos < n; lastpos++)
94 ex=(X509_EXTENSION *)sk_value(sk,lastpos);
95 if (OBJ_cmp(ex->object,obj) == 0)
101 int X509v3_get_ext_by_critical(STACK *sk, int crit, int lastpos)
106 if (sk == NULL) return(-1);
111 for ( ; lastpos < n; lastpos++)
113 ex=(X509_EXTENSION *)sk_value(sk,lastpos);
114 if ( (ex->critical && crit) ||
115 (!ex->critical && !crit))
121 X509_EXTENSION *X509v3_get_ext(STACK *x, int loc)
123 if ((x == NULL) || (sk_num(x) <= loc) || (loc < 0))
126 return((X509_EXTENSION *)sk_value(x,loc));
129 X509_EXTENSION *X509v3_delete_ext(STACK *x, int loc)
133 if ((x == NULL) || (sk_num(x) <= loc) || (loc < 0))
135 ret=(X509_EXTENSION *)sk_delete(x,loc);
139 STACK *X509v3_add_ext(STACK **x, X509_EXTENSION *ex, int loc)
141 X509_EXTENSION *new_ex=NULL;
145 if ((x != NULL) && (*x == NULL))
147 if ((sk=sk_new_null()) == NULL)
155 else if (loc < 0) loc=n;
157 if ((new_ex=X509_EXTENSION_dup(ex)) == NULL)
159 if (!sk_insert(sk,(char *)new_ex,loc))
161 if ((x != NULL) && (*x == NULL))
165 X509err(X509_F_X509V3_ADD_EXT,ERR_R_MALLOC_FAILURE);
167 if (new_ex != NULL) X509_EXTENSION_free(new_ex);
168 if (sk != NULL) sk_free(sk);
172 X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
173 int crit, ASN1_OCTET_STRING *data)
178 obj=OBJ_nid2obj(nid);
181 X509err(X509_F_X509_EXTENSION_CREATE_BY_NID,X509_R_UNKNOWN_NID);
184 ret=X509_EXTENSION_create_by_OBJ(ex,obj,crit,data);
185 if (ret == NULL) ASN1_OBJECT_free(obj);
189 X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
190 ASN1_OBJECT *obj, int crit, ASN1_OCTET_STRING *data)
194 if ((ex == NULL) || (*ex == NULL))
196 if ((ret=X509_EXTENSION_new()) == NULL)
198 X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
205 if (!X509_EXTENSION_set_object(ret,obj))
207 if (!X509_EXTENSION_set_critical(ret,crit))
209 if (!X509_EXTENSION_set_data(ret,data))
212 if ((ex != NULL) && (*ex == NULL)) *ex=ret;
215 if ((ex == NULL) || (ret != *ex))
216 X509_EXTENSION_free(ret);
220 int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj)
222 if ((ex == NULL) || (obj == NULL))
224 ASN1_OBJECT_free(ex->object);
225 ex->object=OBJ_dup(obj);
229 int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
231 if (ex == NULL) return(0);
232 ex->critical=(crit)?0xFF:0;
236 int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
240 if (ex == NULL) return(0);
241 i=ASN1_OCTET_STRING_set(ex->value,data->data,data->length);
246 ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
248 if (ex == NULL) return(NULL);
252 ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
254 if (ex == NULL) return(NULL);
258 int X509_EXTENSION_get_critical(X509_EXTENSION *ex)
260 if (ex == NULL) return(0);
261 return(ex->critical);