Line data Source code
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 :
66 : ASN1_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 :
79 0 : IMPLEMENT_ASN1_FUNCTIONS(X509_CINF)
80 : /* X509 top level structure needs a bit of customisation */
81 :
82 : extern void policy_cache_free(X509_POLICY_CACHE *cache);
83 :
84 14316 : static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
85 : void *exarg)
86 : {
87 14316 : X509 *ret = (X509 *)*pval;
88 :
89 14316 : switch (operation) {
90 :
91 : case ASN1_OP_NEW_POST:
92 1681 : ret->valid = 0;
93 1681 : ret->name = NULL;
94 1681 : ret->ex_flags = 0;
95 1681 : ret->ex_pathlen = -1;
96 1681 : ret->skid = NULL;
97 1681 : ret->akid = NULL;
98 : #ifndef OPENSSL_NO_RFC3779
99 : ret->rfc3779_addr = NULL;
100 : ret->rfc3779_asid = NULL;
101 : #endif
102 1681 : ret->aux = NULL;
103 1681 : ret->crldp = NULL;
104 1681 : CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
105 1681 : break;
106 :
107 : case ASN1_OP_D2I_POST:
108 1681 : if (ret->name != NULL)
109 0 : OPENSSL_free(ret->name);
110 1681 : ret->name = X509_NAME_oneline(ret->cert_info->subject, NULL, 0);
111 1681 : break;
112 :
113 : case ASN1_OP_FREE_POST:
114 1681 : CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
115 1681 : X509_CERT_AUX_free(ret->aux);
116 1681 : ASN1_OCTET_STRING_free(ret->skid);
117 1681 : AUTHORITY_KEYID_free(ret->akid);
118 1681 : CRL_DIST_POINTS_free(ret->crldp);
119 1681 : policy_cache_free(ret->policy_cache);
120 1681 : GENERAL_NAMES_free(ret->altname);
121 1681 : NAME_CONSTRAINTS_free(ret->nc);
122 : #ifndef OPENSSL_NO_RFC3779
123 : sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free);
124 : ASIdentifiers_free(ret->rfc3779_asid);
125 : #endif
126 :
127 1681 : if (ret->name != NULL)
128 1681 : OPENSSL_free(ret->name);
129 : break;
130 :
131 : }
132 :
133 14316 : return 1;
134 :
135 : }
136 :
137 : ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = {
138 : ASN1_SIMPLE(X509, cert_info, X509_CINF),
139 : ASN1_SIMPLE(X509, sig_alg, X509_ALGOR),
140 : ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
141 : } ASN1_SEQUENCE_END_ref(X509, X509)
142 :
143 7945 : IMPLEMENT_ASN1_FUNCTIONS(X509)
144 :
145 0 : IMPLEMENT_ASN1_DUP_FUNCTION(X509)
146 :
147 0 : int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
148 : CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
149 : {
150 0 : return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
151 : new_func, dup_func, free_func);
152 : }
153 :
154 0 : int X509_set_ex_data(X509 *r, int idx, void *arg)
155 : {
156 0 : return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
157 : }
158 :
159 0 : void *X509_get_ex_data(X509 *r, int idx)
160 : {
161 0 : return (CRYPTO_get_ex_data(&r->ex_data, idx));
162 : }
163 :
164 : /*
165 : * X509_AUX ASN1 routines. X509_AUX is the name given to a certificate with
166 : * extra info tagged on the end. Since these functions set how a certificate
167 : * is trusted they should only be used when the certificate comes from a
168 : * reliable source such as local storage.
169 : */
170 :
171 872 : X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
172 : {
173 : const unsigned char *q;
174 : X509 *ret;
175 : int freeret = 0;
176 :
177 : /* Save start position */
178 872 : q = *pp;
179 :
180 872 : if (!a || *a == NULL) {
181 : freeret = 1;
182 : }
183 : ret = d2i_X509(a, pp, length);
184 : /* If certificate unreadable then forget it */
185 872 : if (!ret)
186 : return NULL;
187 : /* update length */
188 872 : length -= *pp - q;
189 872 : if (!length)
190 : return ret;
191 0 : if (!d2i_X509_CERT_AUX(&ret->aux, pp, length))
192 : goto err;
193 : return ret;
194 : err:
195 0 : if (freeret) {
196 : X509_free(ret);
197 0 : if (a)
198 0 : *a = NULL;
199 : }
200 : return NULL;
201 : }
202 :
203 0 : int i2d_X509_AUX(X509 *a, unsigned char **pp)
204 : {
205 : int length;
206 : length = i2d_X509(a, pp);
207 0 : if (a)
208 0 : length += i2d_X509_CERT_AUX(a->aux, pp);
209 0 : return length;
210 : }
211 :
212 0 : int i2d_re_X509_tbs(X509 *x, unsigned char **pp)
213 : {
214 0 : x->cert_info->enc.modified = 1;
215 0 : return i2d_X509_CINF(x->cert_info, pp);
216 : }
217 :
218 0 : void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg,
219 : const X509 *x)
220 : {
221 0 : if (psig)
222 0 : *psig = x->signature;
223 0 : if (palg)
224 0 : *palg = x->sig_alg;
225 0 : }
226 :
227 0 : int X509_get_signature_nid(const X509 *x)
228 : {
229 0 : return OBJ_obj2nid(x->sig_alg->algorithm);
230 : }
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