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diff --git a/src/lib/libcrypto/asn1/x_x509.c b/src/lib/libcrypto/asn1/x_x509.c
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1/* $OpenBSD: x_x509.c,v 1.24 2015/03/19 14:00:22 tedu Exp $ */
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
61#include <openssl/opensslconf.h>
62
63#include <openssl/asn1t.h>
64#include <openssl/evp.h>
65#include <openssl/x509.h>
66#include <openssl/x509v3.h>
67
68static const ASN1_AUX X509_CINF_aux = {
69 .flags = ASN1_AFLG_ENCODING,
70 .enc_offset = offsetof(X509_CINF, enc),
71};
72static const ASN1_TEMPLATE X509_CINF_seq_tt[] = {
73 {
74 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL,
75 .offset = offsetof(X509_CINF, version),
76 .field_name = "version",
77 .item = &ASN1_INTEGER_it,
78 },
79 {
80 .offset = offsetof(X509_CINF, serialNumber),
81 .field_name = "serialNumber",
82 .item = &ASN1_INTEGER_it,
83 },
84 {
85 .offset = offsetof(X509_CINF, signature),
86 .field_name = "signature",
87 .item = &X509_ALGOR_it,
88 },
89 {
90 .offset = offsetof(X509_CINF, issuer),
91 .field_name = "issuer",
92 .item = &X509_NAME_it,
93 },
94 {
95 .offset = offsetof(X509_CINF, validity),
96 .field_name = "validity",
97 .item = &X509_VAL_it,
98 },
99 {
100 .offset = offsetof(X509_CINF, subject),
101 .field_name = "subject",
102 .item = &X509_NAME_it,
103 },
104 {
105 .offset = offsetof(X509_CINF, key),
106 .field_name = "key",
107 .item = &X509_PUBKEY_it,
108 },
109 {
110 .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
111 .tag = 1,
112 .offset = offsetof(X509_CINF, issuerUID),
113 .field_name = "issuerUID",
114 .item = &ASN1_BIT_STRING_it,
115 },
116 {
117 .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
118 .tag = 2,
119 .offset = offsetof(X509_CINF, subjectUID),
120 .field_name = "subjectUID",
121 .item = &ASN1_BIT_STRING_it,
122 },
123 {
124 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_SEQUENCE_OF |
125 ASN1_TFLG_OPTIONAL,
126 .tag = 3,
127 .offset = offsetof(X509_CINF, extensions),
128 .field_name = "extensions",
129 .item = &X509_EXTENSION_it,
130 },
131};
132
133const ASN1_ITEM X509_CINF_it = {
134 .itype = ASN1_ITYPE_SEQUENCE,
135 .utype = V_ASN1_SEQUENCE,
136 .templates = X509_CINF_seq_tt,
137 .tcount = sizeof(X509_CINF_seq_tt) / sizeof(ASN1_TEMPLATE),
138 .funcs = &X509_CINF_aux,
139 .size = sizeof(X509_CINF),
140 .sname = "X509_CINF",
141};
142
143
144X509_CINF *
145d2i_X509_CINF(X509_CINF **a, const unsigned char **in, long len)
146{
147 return (X509_CINF *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
148 &X509_CINF_it);
149}
150
151int
152i2d_X509_CINF(X509_CINF *a, unsigned char **out)
153{
154 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CINF_it);
155}
156
157X509_CINF *
158X509_CINF_new(void)
159{
160 return (X509_CINF *)ASN1_item_new(&X509_CINF_it);
161}
162
163void
164X509_CINF_free(X509_CINF *a)
165{
166 ASN1_item_free((ASN1_VALUE *)a, &X509_CINF_it);
167}
168/* X509 top level structure needs a bit of customisation */
169
170extern void policy_cache_free(X509_POLICY_CACHE *cache);
171
172static int
173x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
174{
175 X509 *ret = (X509 *)*pval;
176
177 switch (operation) {
178
179 case ASN1_OP_NEW_POST:
180 ret->valid = 0;
181 ret->name = NULL;
182 ret->ex_flags = 0;
183 ret->ex_pathlen = -1;
184 ret->skid = NULL;
185 ret->akid = NULL;
186 ret->aux = NULL;
187 ret->crldp = NULL;
188 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
189 break;
190
191 case ASN1_OP_D2I_POST:
192 free(ret->name);
193 ret->name = X509_NAME_oneline(ret->cert_info->subject, NULL, 0);
194 break;
195
196 case ASN1_OP_FREE_POST:
197 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
198 X509_CERT_AUX_free(ret->aux);
199 ASN1_OCTET_STRING_free(ret->skid);
200 AUTHORITY_KEYID_free(ret->akid);
201 CRL_DIST_POINTS_free(ret->crldp);
202 policy_cache_free(ret->policy_cache);
203 GENERAL_NAMES_free(ret->altname);
204 NAME_CONSTRAINTS_free(ret->nc);
205 free(ret->name);
206 ret->name = NULL;
207 break;
208 }
209
210 return 1;
211}
212
213static const ASN1_AUX X509_aux = {
214 .app_data = NULL,
215 .flags = ASN1_AFLG_REFCOUNT,
216 .ref_offset = offsetof(X509, references),
217 .ref_lock = CRYPTO_LOCK_X509,
218 .asn1_cb = x509_cb,
219};
220static const ASN1_TEMPLATE X509_seq_tt[] = {
221 {
222 .offset = offsetof(X509, cert_info),
223 .field_name = "cert_info",
224 .item = &X509_CINF_it,
225 },
226 {
227 .offset = offsetof(X509, sig_alg),
228 .field_name = "sig_alg",
229 .item = &X509_ALGOR_it,
230 },
231 {
232 .offset = offsetof(X509, signature),
233 .field_name = "signature",
234 .item = &ASN1_BIT_STRING_it,
235 },
236};
237
238const ASN1_ITEM X509_it = {
239 .itype = ASN1_ITYPE_SEQUENCE,
240 .utype = V_ASN1_SEQUENCE,
241 .templates = X509_seq_tt,
242 .tcount = sizeof(X509_seq_tt) / sizeof(ASN1_TEMPLATE),
243 .funcs = &X509_aux,
244 .size = sizeof(X509),
245 .sname = "X509",
246};
247
248
249X509 *
250d2i_X509(X509 **a, const unsigned char **in, long len)
251{
252 return (X509 *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
253 &X509_it);
254}
255
256int
257i2d_X509(X509 *a, unsigned char **out)
258{
259 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_it);
260}
261
262X509 *
263X509_new(void)
264{
265 return (X509 *)ASN1_item_new(&X509_it);
266}
267
268void
269X509_free(X509 *a)
270{
271 ASN1_item_free((ASN1_VALUE *)a, &X509_it);
272}
273
274X509 *
275X509_dup(X509 *x)
276{
277 return ASN1_item_dup(&X509_it, x);
278}
279
280int
281X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
282 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
283{
284 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
285 new_func, dup_func, free_func);
286}
287
288int
289X509_set_ex_data(X509 *r, int idx, void *arg)
290{
291 return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
292}
293
294void *
295X509_get_ex_data(X509 *r, int idx)
296{
297 return (CRYPTO_get_ex_data(&r->ex_data, idx));
298}
299
300/* X509_AUX ASN1 routines. X509_AUX is the name given to
301 * a certificate with extra info tagged on the end. Since these
302 * functions set how a certificate is trusted they should only
303 * be used when the certificate comes from a reliable source
304 * such as local storage.
305 *
306 */
307
308X509 *
309d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
310{
311 const unsigned char *q;
312 X509 *ret;
313
314 /* Save start position */
315 q = *pp;
316 ret = d2i_X509(NULL, pp, length);
317 /* If certificate unreadable then forget it */
318 if (!ret)
319 return NULL;
320 /* update length */
321 length -= *pp - q;
322 if (length > 0) {
323 if (!d2i_X509_CERT_AUX(&ret->aux, pp, length))
324 goto err;
325 }
326 if (a != NULL) {
327 X509_free(*a);
328 *a = ret;
329 }
330 return ret;
331
332err:
333 X509_free(ret);
334 return NULL;
335}
336
337int
338i2d_X509_AUX(X509 *a, unsigned char **pp)
339{
340 int length;
341
342 length = i2d_X509(a, pp);
343 if (a)
344 length += i2d_X509_CERT_AUX(a->aux, pp);
345 return length;
346}
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