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(X509_CINF) = {
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(X509_CINF)
78
79IMPLEMENT_ASN1_FUNCTIONS(X509_CINF)
80/* X509 top level structure needs a bit of customisation */
81
82static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
83{
84	X509 *ret = (X509 *)*pval;
85
86	switch(operation) {
87
88		case ASN1_OP_NEW_POST:
89		ret->valid=0;
90		ret->name = NULL;
91		ret->ex_flags = 0;
92		ret->ex_pathlen = -1;
93		ret->skid = NULL;
94		ret->akid = NULL;
95		ret->aux = NULL;
96		CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
97		break;
98
99		case ASN1_OP_D2I_POST:
100		if (ret->name != NULL) OPENSSL_free(ret->name);
101		ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
102		break;
103
104		case ASN1_OP_FREE_POST:
105		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
106		X509_CERT_AUX_free(ret->aux);
107		ASN1_OCTET_STRING_free(ret->skid);
108		AUTHORITY_KEYID_free(ret->akid);
109
110		if (ret->name != NULL) OPENSSL_free(ret->name);
111		break;
112
113	}
114
115	return 1;
116
117}
118
119ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = {
120	ASN1_SIMPLE(X509, cert_info, X509_CINF),
121	ASN1_SIMPLE(X509, sig_alg, X509_ALGOR),
122	ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
123} ASN1_SEQUENCE_END_ref(X509, X509)
124
125IMPLEMENT_ASN1_FUNCTIONS(X509)
126IMPLEMENT_ASN1_DUP_FUNCTION(X509)
127
128static ASN1_METHOD meth={
129	(int (*)())  i2d_X509,
130	(char *(*)())d2i_X509,
131	(char *(*)())X509_new,
132	(void (*)()) X509_free};
133
134ASN1_METHOD *X509_asn1_meth(void)
135	{
136	return(&meth);
137	}
138
139int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
140	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
141        {
142	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
143				new_func, dup_func, free_func);
144        }
145
146int X509_set_ex_data(X509 *r, int idx, void *arg)
147	{
148	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
149	}
150
151void *X509_get_ex_data(X509 *r, int idx)
152	{
153	return(CRYPTO_get_ex_data(&r->ex_data,idx));
154	}
155
156/* X509_AUX ASN1 routines. X509_AUX is the name given to
157 * a certificate with extra info tagged on the end. Since these
158 * functions set how a certificate is trusted they should only
159 * be used when the certificate comes from a reliable source
160 * such as local storage.
161 *
162 */
163
164X509 *d2i_X509_AUX(X509 **a, unsigned char **pp, long length)
165{
166	unsigned char *q;
167	X509 *ret;
168	/* Save start position */
169	q = *pp;
170	ret = d2i_X509(a, pp, length);
171	/* If certificate unreadable then forget it */
172	if(!ret) return NULL;
173	/* update length */
174	length -= *pp - q;
175	if(!length) return ret;
176	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
177	return ret;
178	err:
179	X509_free(ret);
180	return NULL;
181}
182
183int i2d_X509_AUX(X509 *a, unsigned char **pp)
184{
185	int length;
186	length = i2d_X509(a, pp);
187	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
188	return length;
189}
190