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								void *exarg)
86{
87	X509 *ret = (X509 *)*pval;
88
89	switch(operation) {
90
91		case ASN1_OP_NEW_POST:
92		ret->valid=0;
93		ret->name = NULL;
94		ret->ex_flags = 0;
95		ret->ex_pathlen = -1;
96		ret->skid = NULL;
97		ret->akid = NULL;
98#ifndef OPENSSL_NO_RFC3779
99		ret->rfc3779_addr = NULL;
100		ret->rfc3779_asid = NULL;
101#endif
102		ret->aux = NULL;
103		ret->crldp = NULL;
104		CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
105		break;
106
107		case ASN1_OP_D2I_POST:
108		if (ret->name != NULL) OPENSSL_free(ret->name);
109		ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
110		break;
111
112		case ASN1_OP_FREE_POST:
113		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
114		X509_CERT_AUX_free(ret->aux);
115		ASN1_OCTET_STRING_free(ret->skid);
116		AUTHORITY_KEYID_free(ret->akid);
117		CRL_DIST_POINTS_free(ret->crldp);
118		policy_cache_free(ret->policy_cache);
119		GENERAL_NAMES_free(ret->altname);
120		NAME_CONSTRAINTS_free(ret->nc);
121#ifndef OPENSSL_NO_RFC3779
122		sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free);
123		ASIdentifiers_free(ret->rfc3779_asid);
124#endif
125
126		if (ret->name != NULL) OPENSSL_free(ret->name);
127		break;
128
129	}
130
131	return 1;
132
133}
134
135ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = {
136	ASN1_SIMPLE(X509, cert_info, X509_CINF),
137	ASN1_SIMPLE(X509, sig_alg, X509_ALGOR),
138	ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
139} ASN1_SEQUENCE_END_ref(X509, X509)
140
141IMPLEMENT_ASN1_FUNCTIONS(X509)
142IMPLEMENT_ASN1_DUP_FUNCTION(X509)
143
144int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
145	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
146        {
147	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
148				new_func, dup_func, free_func);
149        }
150
151int X509_set_ex_data(X509 *r, int idx, void *arg)
152	{
153	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
154	}
155
156void *X509_get_ex_data(X509 *r, int idx)
157	{
158	return(CRYPTO_get_ex_data(&r->ex_data,idx));
159	}
160
161/* X509_AUX ASN1 routines. X509_AUX is the name given to
162 * a certificate with extra info tagged on the end. Since these
163 * functions set how a certificate is trusted they should only
164 * be used when the certificate comes from a reliable source
165 * such as local storage.
166 *
167 */
168
169X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
170{
171	const unsigned char *q;
172	X509 *ret;
173	/* Save start position */
174	q = *pp;
175	ret = d2i_X509(a, pp, length);
176	/* If certificate unreadable then forget it */
177	if(!ret) return NULL;
178	/* update length */
179	length -= *pp - q;
180	if(!length) return ret;
181	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
182	return ret;
183	err:
184	X509_free(ret);
185	return NULL;
186}
187
188int i2d_X509_AUX(X509 *a, unsigned char **pp)
189{
190	int length;
191	length = i2d_X509(a, pp);
192	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
193	return length;
194}
195