x_x509.c revision 215697 
1/* crypto/asn1/x_x509.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 "cryptlib.h"
61#include <openssl/evp.h>
62#include <openssl/asn1t.h>
63#include <openssl/x509.h>
64#include <openssl/x509v3.h>
65
66ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = {
67	ASN1_EXP_OPT(X509_CINF, version, ASN1_INTEGER, 0),
68	ASN1_SIMPLE(X509_CINF, serialNumber, ASN1_INTEGER),
69	ASN1_SIMPLE(X509_CINF, signature, X509_ALGOR),
70	ASN1_SIMPLE(X509_CINF, issuer, X509_NAME),
71	ASN1_SIMPLE(X509_CINF, validity, X509_VAL),
72	ASN1_SIMPLE(X509_CINF, subject, X509_NAME),
73	ASN1_SIMPLE(X509_CINF, key, X509_PUBKEY),
74	ASN1_IMP_OPT(X509_CINF, issuerUID, ASN1_BIT_STRING, 1),
75	ASN1_IMP_OPT(X509_CINF, subjectUID, ASN1_BIT_STRING, 2),
76	ASN1_EXP_SEQUENCE_OF_OPT(X509_CINF, extensions, X509_EXTENSION, 3)
77} ASN1_SEQUENCE_END_enc(X509_CINF, X509_CINF)
78
79IMPLEMENT_ASN1_FUNCTIONS(X509_CINF)
80/* X509 top level structure needs a bit of customisation */
81
82extern void policy_cache_free(X509_POLICY_CACHE *cache);
83
84static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
85{
86	X509 *ret = (X509 *)*pval;
87
88	switch(operation) {
89
90		case ASN1_OP_NEW_POST:
91		ret->valid=0;
92		ret->name = NULL;
93		ret->ex_flags = 0;
94		ret->ex_pathlen = -1;
95		ret->skid = NULL;
96		ret->akid = NULL;
97#ifndef OPENSSL_NO_RFC3779
98		ret->rfc3779_addr = NULL;
99		ret->rfc3779_asid = NULL;
100#endif
101		ret->aux = NULL;
102		CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
103		break;
104
105		case ASN1_OP_D2I_POST:
106		if (ret->name != NULL) OPENSSL_free(ret->name);
107		ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
108		break;
109
110		case ASN1_OP_FREE_POST:
111		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
112		X509_CERT_AUX_free(ret->aux);
113		ASN1_OCTET_STRING_free(ret->skid);
114		AUTHORITY_KEYID_free(ret->akid);
115		policy_cache_free(ret->policy_cache);
116#ifndef OPENSSL_NO_RFC3779
117		sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free);
118		ASIdentifiers_free(ret->rfc3779_asid);
119#endif
120
121		if (ret->name != NULL) OPENSSL_free(ret->name);
122		break;
123
124	}
125
126	return 1;
127
128}
129
130ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = {
131	ASN1_SIMPLE(X509, cert_info, X509_CINF),
132	ASN1_SIMPLE(X509, sig_alg, X509_ALGOR),
133	ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
134} ASN1_SEQUENCE_END_ref(X509, X509)
135
136IMPLEMENT_ASN1_FUNCTIONS(X509)
137IMPLEMENT_ASN1_DUP_FUNCTION(X509)
138
139static ASN1_METHOD meth=
140    {
141    (I2D_OF(void))  i2d_X509,
142    (D2I_OF(void)) d2i_X509,
143    (void *(*)(void))X509_new,
144    (void (*)(void *)) X509_free
145    };
146
147ASN1_METHOD *X509_asn1_meth(void)
148	{
149	return(&meth);
150	}
151
152int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
153	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
154        {
155	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
156				new_func, dup_func, free_func);
157        }
158
159int X509_set_ex_data(X509 *r, int idx, void *arg)
160	{
161	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
162	}
163
164void *X509_get_ex_data(X509 *r, int idx)
165	{
166	return(CRYPTO_get_ex_data(&r->ex_data,idx));
167	}
168
169/* X509_AUX ASN1 routines. X509_AUX is the name given to
170 * a certificate with extra info tagged on the end. Since these
171 * functions set how a certificate is trusted they should only
172 * be used when the certificate comes from a reliable source
173 * such as local storage.
174 *
175 */
176
177X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
178{
179	const unsigned char *q;
180	X509 *ret;
181	/* Save start position */
182	q = *pp;
183	ret = d2i_X509(a, pp, length);
184	/* If certificate unreadable then forget it */
185	if(!ret) return NULL;
186	/* update length */
187	length -= *pp - q;
188	if(!length) return ret;
189	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
190	return ret;
191	err:
192	X509_free(ret);
193	return NULL;
194}
195
196int i2d_X509_AUX(X509 *a, unsigned char **pp)
197{
198	int length;
199	length = i2d_X509(a, pp);
200	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
201	return length;
202}
203