1 /* $OpenBSD: x509_info.c,v 1.3 2023/02/16 08:38:17 tb Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 #include <stdio.h>
60 #include <string.h>
61
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/conf.h>
65 #include <openssl/err.h>
66 #include <openssl/x509v3.h>
67
68 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
69 X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo,
70 STACK_OF(CONF_VALUE) *ret);
71 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(
72 X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
73
74 const X509V3_EXT_METHOD v3_info = {
75 .ext_nid = NID_info_access,
76 .ext_flags = X509V3_EXT_MULTILINE,
77 .it = &AUTHORITY_INFO_ACCESS_it,
78 .ext_new = NULL,
79 .ext_free = NULL,
80 .d2i = NULL,
81 .i2d = NULL,
82 .i2s = NULL,
83 .s2i = NULL,
84 .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,
85 .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
86 .i2r = NULL,
87 .r2i = NULL,
88 .usr_data = NULL,
89 };
90
91 const X509V3_EXT_METHOD v3_sinfo = {
92 .ext_nid = NID_sinfo_access,
93 .ext_flags = X509V3_EXT_MULTILINE,
94 .it = &AUTHORITY_INFO_ACCESS_it,
95 .ext_new = NULL,
96 .ext_free = NULL,
97 .d2i = NULL,
98 .i2d = NULL,
99 .i2s = NULL,
100 .s2i = NULL,
101 .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,
102 .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
103 .i2r = NULL,
104 .r2i = NULL,
105 .usr_data = NULL,
106 };
107
108 static const ASN1_TEMPLATE ACCESS_DESCRIPTION_seq_tt[] = {
109 {
110 .flags = 0,
111 .tag = 0,
112 .offset = offsetof(ACCESS_DESCRIPTION, method),
113 .field_name = "method",
114 .item = &ASN1_OBJECT_it,
115 },
116 {
117 .flags = 0,
118 .tag = 0,
119 .offset = offsetof(ACCESS_DESCRIPTION, location),
120 .field_name = "location",
121 .item = &GENERAL_NAME_it,
122 },
123 };
124
125 const ASN1_ITEM ACCESS_DESCRIPTION_it = {
126 .itype = ASN1_ITYPE_SEQUENCE,
127 .utype = V_ASN1_SEQUENCE,
128 .templates = ACCESS_DESCRIPTION_seq_tt,
129 .tcount = sizeof(ACCESS_DESCRIPTION_seq_tt) / sizeof(ASN1_TEMPLATE),
130 .funcs = NULL,
131 .size = sizeof(ACCESS_DESCRIPTION),
132 .sname = "ACCESS_DESCRIPTION",
133 };
134
135
136 ACCESS_DESCRIPTION *
d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION ** a,const unsigned char ** in,long len)137 d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION **a, const unsigned char **in, long len)
138 {
139 return (ACCESS_DESCRIPTION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
140 &ACCESS_DESCRIPTION_it);
141 }
142 LCRYPTO_ALIAS(d2i_ACCESS_DESCRIPTION);
143
144 int
i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION * a,unsigned char ** out)145 i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION *a, unsigned char **out)
146 {
147 return ASN1_item_i2d((ASN1_VALUE *)a, out, &ACCESS_DESCRIPTION_it);
148 }
149 LCRYPTO_ALIAS(i2d_ACCESS_DESCRIPTION);
150
151 ACCESS_DESCRIPTION *
ACCESS_DESCRIPTION_new(void)152 ACCESS_DESCRIPTION_new(void)
153 {
154 return (ACCESS_DESCRIPTION *)ASN1_item_new(&ACCESS_DESCRIPTION_it);
155 }
156 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_new);
157
158 void
ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION * a)159 ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION *a)
160 {
161 ASN1_item_free((ASN1_VALUE *)a, &ACCESS_DESCRIPTION_it);
162 }
163 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_free);
164
165 static const ASN1_TEMPLATE AUTHORITY_INFO_ACCESS_item_tt = {
166 .flags = ASN1_TFLG_SEQUENCE_OF,
167 .tag = 0,
168 .offset = 0,
169 .field_name = "GeneralNames",
170 .item = &ACCESS_DESCRIPTION_it,
171 };
172
173 const ASN1_ITEM AUTHORITY_INFO_ACCESS_it = {
174 .itype = ASN1_ITYPE_PRIMITIVE,
175 .utype = -1,
176 .templates = &AUTHORITY_INFO_ACCESS_item_tt,
177 .tcount = 0,
178 .funcs = NULL,
179 .size = 0,
180 .sname = "AUTHORITY_INFO_ACCESS",
181 };
182
183
184 AUTHORITY_INFO_ACCESS *
d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS ** a,const unsigned char ** in,long len)185 d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS **a, const unsigned char **in, long len)
186 {
187 return (AUTHORITY_INFO_ACCESS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
188 &AUTHORITY_INFO_ACCESS_it);
189 }
190 LCRYPTO_ALIAS(d2i_AUTHORITY_INFO_ACCESS);
191
192 int
i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS * a,unsigned char ** out)193 i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS *a, unsigned char **out)
194 {
195 return ASN1_item_i2d((ASN1_VALUE *)a, out, &AUTHORITY_INFO_ACCESS_it);
196 }
197 LCRYPTO_ALIAS(i2d_AUTHORITY_INFO_ACCESS);
198
199 AUTHORITY_INFO_ACCESS *
AUTHORITY_INFO_ACCESS_new(void)200 AUTHORITY_INFO_ACCESS_new(void)
201 {
202 return (AUTHORITY_INFO_ACCESS *)ASN1_item_new(&AUTHORITY_INFO_ACCESS_it);
203 }
204 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_new);
205
206 void
AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS * a)207 AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS *a)
208 {
209 ASN1_item_free((ASN1_VALUE *)a, &AUTHORITY_INFO_ACCESS_it);
210 }
211 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_free);
212
STACK_OF(CONF_VALUE)213 static STACK_OF(CONF_VALUE) *
214 i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method,
215 AUTHORITY_INFO_ACCESS *ainfo, STACK_OF(CONF_VALUE) *ret)
216 {
217 ACCESS_DESCRIPTION *desc;
218 CONF_VALUE *vtmp;
219 STACK_OF(CONF_VALUE) *free_ret = NULL;
220 char objtmp[80], *ntmp;
221 int i;
222
223 if (ret == NULL) {
224 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL)
225 return NULL;
226 }
227
228 for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
229 if ((desc = sk_ACCESS_DESCRIPTION_value(ainfo, i)) == NULL)
230 goto err;
231 if ((ret = i2v_GENERAL_NAME(method, desc->location,
232 ret)) == NULL)
233 goto err;
234 if ((vtmp = sk_CONF_VALUE_value(ret, i)) == NULL)
235 goto err;
236 if (!i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method))
237 goto err;
238 if (asprintf(&ntmp, "%s - %s", objtmp, vtmp->name) == -1) {
239 ntmp = NULL;
240 X509V3error(ERR_R_MALLOC_FAILURE);
241 goto err;
242 }
243 free(vtmp->name);
244 vtmp->name = ntmp;
245 }
246
247 return ret;
248
249 err:
250 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free);
251
252 return NULL;
253 }
254
255 static AUTHORITY_INFO_ACCESS *
v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)256 v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
257 STACK_OF(CONF_VALUE) *nval)
258 {
259 AUTHORITY_INFO_ACCESS *ainfo = NULL;
260 CONF_VALUE *cnf, ctmp;
261 ACCESS_DESCRIPTION *acc;
262 int i, objlen;
263 char *objtmp, *ptmp;
264
265 if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {
266 X509V3error(ERR_R_MALLOC_FAILURE);
267 return NULL;
268 }
269 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
270 cnf = sk_CONF_VALUE_value(nval, i);
271 if ((acc = ACCESS_DESCRIPTION_new()) == NULL) {
272 X509V3error(ERR_R_MALLOC_FAILURE);
273 goto err;
274 }
275 if (sk_ACCESS_DESCRIPTION_push(ainfo, acc) == 0) {
276 ACCESS_DESCRIPTION_free(acc);
277 X509V3error(ERR_R_MALLOC_FAILURE);
278 goto err;
279 }
280 ptmp = strchr(cnf->name, ';');
281 if (!ptmp) {
282 X509V3error(X509V3_R_INVALID_SYNTAX);
283 goto err;
284 }
285 objlen = ptmp - cnf->name;
286 ctmp.name = ptmp + 1;
287 ctmp.value = cnf->value;
288 if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
289 goto err;
290 if (!(objtmp = malloc(objlen + 1))) {
291 X509V3error(ERR_R_MALLOC_FAILURE);
292 goto err;
293 }
294 strlcpy(objtmp, cnf->name, objlen + 1);
295 acc->method = OBJ_txt2obj(objtmp, 0);
296 if (!acc->method) {
297 X509V3error(X509V3_R_BAD_OBJECT);
298 ERR_asprintf_error_data("value=%s", objtmp);
299 free(objtmp);
300 goto err;
301 }
302 free(objtmp);
303 }
304 return ainfo;
305
306 err:
307 sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
308 return NULL;
309 }
310
311 int
i2a_ACCESS_DESCRIPTION(BIO * bp,const ACCESS_DESCRIPTION * a)312 i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION* a)
313 {
314 i2a_ASN1_OBJECT(bp, a->method);
315 return 2;
316 }
317 LCRYPTO_ALIAS(i2a_ACCESS_DESCRIPTION);
318