1 /* $OpenBSD: x509_v3.c,v 1.17 2018/05/19 10:54:40 tb Exp $ */
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.]
61 #include <openssl/asn1.h>
62 #include <openssl/err.h>
63 #include <openssl/evp.h>
64 #include <openssl/objects.h>
65 #include <openssl/stack.h>
66 #include <openssl/x509.h>
67 #include <openssl/x509v3.h>
70 X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
74 return (sk_X509_EXTENSION_num(x));
78 X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid, int lastpos)
82 obj = OBJ_nid2obj(nid);
85 return (X509v3_get_ext_by_OBJ(x, obj, lastpos));
89 X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk,
90 const ASN1_OBJECT *obj, int lastpos)
100 n = sk_X509_EXTENSION_num(sk);
101 for (; lastpos < n; lastpos++) {
102 ex = sk_X509_EXTENSION_value(sk, lastpos);
103 if (OBJ_cmp(ex->object, obj) == 0)
110 X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
121 n = sk_X509_EXTENSION_num(sk);
122 for (; lastpos < n; lastpos++) {
123 ex = sk_X509_EXTENSION_value(sk, lastpos);
124 if (((ex->critical > 0) && crit) ||
125 ((ex->critical <= 0) && !crit))
132 X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
134 if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
137 return sk_X509_EXTENSION_value(x, loc);
141 X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
145 if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
147 ret = sk_X509_EXTENSION_delete(x, loc);
151 STACK_OF(X509_EXTENSION) *
152 X509v3_add_ext(STACK_OF(X509_EXTENSION) **x, X509_EXTENSION *ex, int loc)
154 X509_EXTENSION *new_ex = NULL;
156 STACK_OF(X509_EXTENSION) *sk = NULL;
159 X509error(ERR_R_PASSED_NULL_PARAMETER);
164 if ((sk = sk_X509_EXTENSION_new_null()) == NULL)
169 n = sk_X509_EXTENSION_num(sk);
175 if ((new_ex = X509_EXTENSION_dup(ex)) == NULL)
177 if (!sk_X509_EXTENSION_insert(sk, new_ex, loc))
184 X509error(ERR_R_MALLOC_FAILURE);
187 X509_EXTENSION_free(new_ex);
188 if (sk != NULL && (x != NULL && sk != *x))
189 sk_X509_EXTENSION_free(sk);
194 X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, int crit,
195 ASN1_OCTET_STRING *data)
200 obj = OBJ_nid2obj(nid);
202 X509error(X509_R_UNKNOWN_NID);
205 ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data);
207 ASN1_OBJECT_free(obj);
212 X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex, const ASN1_OBJECT *obj,
213 int crit, ASN1_OCTET_STRING *data)
217 if ((ex == NULL) || (*ex == NULL)) {
218 if ((ret = X509_EXTENSION_new()) == NULL) {
219 X509error(ERR_R_MALLOC_FAILURE);
225 if (!X509_EXTENSION_set_object(ret, obj))
227 if (!X509_EXTENSION_set_critical(ret, crit))
229 if (!X509_EXTENSION_set_data(ret, data))
232 if ((ex != NULL) && (*ex == NULL))
237 if ((ex == NULL) || (ret != *ex))
238 X509_EXTENSION_free(ret);
243 X509_EXTENSION_set_object(X509_EXTENSION *ex, const ASN1_OBJECT *obj)
245 if ((ex == NULL) || (obj == NULL))
247 ASN1_OBJECT_free(ex->object);
248 ex->object = OBJ_dup(obj);
249 return ex->object != NULL;
253 X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
257 ex->critical = (crit) ? 0xFF : -1;
262 X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
268 i = ASN1_STRING_set(ex->value, data->data, data->length);
275 X509_EXTENSION_get_object(X509_EXTENSION *ex)
283 X509_EXTENSION_get_data(X509_EXTENSION *ex)
291 X509_EXTENSION_get_critical(const X509_EXTENSION *ex)
295 if (ex->critical > 0)