1 /* $OpenBSD: x509_info.c,v 1.5 2024/07/13 15:08:58 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 static const X509V3_EXT_METHOD x509v3_ext_info_access = {
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 *
x509v3_ext_method_info_access(void)92 x509v3_ext_method_info_access(void)
93 {
94 return &x509v3_ext_info_access;
95 }
96
97 static const X509V3_EXT_METHOD x509v3_ext_sinfo_access = {
98 .ext_nid = NID_sinfo_access,
99 .ext_flags = X509V3_EXT_MULTILINE,
100 .it = &AUTHORITY_INFO_ACCESS_it,
101 .ext_new = NULL,
102 .ext_free = NULL,
103 .d2i = NULL,
104 .i2d = NULL,
105 .i2s = NULL,
106 .s2i = NULL,
107 .i2v = (X509V3_EXT_I2V)i2v_AUTHORITY_INFO_ACCESS,
108 .v2i = (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
109 .i2r = NULL,
110 .r2i = NULL,
111 .usr_data = NULL,
112 };
113
114 const X509V3_EXT_METHOD *
x509v3_ext_method_sinfo_access(void)115 x509v3_ext_method_sinfo_access(void)
116 {
117 return &x509v3_ext_sinfo_access;
118 }
119
120 static const ASN1_TEMPLATE ACCESS_DESCRIPTION_seq_tt[] = {
121 {
122 .flags = 0,
123 .tag = 0,
124 .offset = offsetof(ACCESS_DESCRIPTION, method),
125 .field_name = "method",
126 .item = &ASN1_OBJECT_it,
127 },
128 {
129 .flags = 0,
130 .tag = 0,
131 .offset = offsetof(ACCESS_DESCRIPTION, location),
132 .field_name = "location",
133 .item = &GENERAL_NAME_it,
134 },
135 };
136
137 const ASN1_ITEM ACCESS_DESCRIPTION_it = {
138 .itype = ASN1_ITYPE_SEQUENCE,
139 .utype = V_ASN1_SEQUENCE,
140 .templates = ACCESS_DESCRIPTION_seq_tt,
141 .tcount = sizeof(ACCESS_DESCRIPTION_seq_tt) / sizeof(ASN1_TEMPLATE),
142 .funcs = NULL,
143 .size = sizeof(ACCESS_DESCRIPTION),
144 .sname = "ACCESS_DESCRIPTION",
145 };
146 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_it);
147
148
149 ACCESS_DESCRIPTION *
d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION ** a,const unsigned char ** in,long len)150 d2i_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION **a, const unsigned char **in, long len)
151 {
152 return (ACCESS_DESCRIPTION *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
153 &ACCESS_DESCRIPTION_it);
154 }
155 LCRYPTO_ALIAS(d2i_ACCESS_DESCRIPTION);
156
157 int
i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION * a,unsigned char ** out)158 i2d_ACCESS_DESCRIPTION(ACCESS_DESCRIPTION *a, unsigned char **out)
159 {
160 return ASN1_item_i2d((ASN1_VALUE *)a, out, &ACCESS_DESCRIPTION_it);
161 }
162 LCRYPTO_ALIAS(i2d_ACCESS_DESCRIPTION);
163
164 ACCESS_DESCRIPTION *
ACCESS_DESCRIPTION_new(void)165 ACCESS_DESCRIPTION_new(void)
166 {
167 return (ACCESS_DESCRIPTION *)ASN1_item_new(&ACCESS_DESCRIPTION_it);
168 }
169 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_new);
170
171 void
ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION * a)172 ACCESS_DESCRIPTION_free(ACCESS_DESCRIPTION *a)
173 {
174 ASN1_item_free((ASN1_VALUE *)a, &ACCESS_DESCRIPTION_it);
175 }
176 LCRYPTO_ALIAS(ACCESS_DESCRIPTION_free);
177
178 static const ASN1_TEMPLATE AUTHORITY_INFO_ACCESS_item_tt = {
179 .flags = ASN1_TFLG_SEQUENCE_OF,
180 .tag = 0,
181 .offset = 0,
182 .field_name = "GeneralNames",
183 .item = &ACCESS_DESCRIPTION_it,
184 };
185
186 const ASN1_ITEM AUTHORITY_INFO_ACCESS_it = {
187 .itype = ASN1_ITYPE_PRIMITIVE,
188 .utype = -1,
189 .templates = &AUTHORITY_INFO_ACCESS_item_tt,
190 .tcount = 0,
191 .funcs = NULL,
192 .size = 0,
193 .sname = "AUTHORITY_INFO_ACCESS",
194 };
195 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_it);
196
197
198 AUTHORITY_INFO_ACCESS *
d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS ** a,const unsigned char ** in,long len)199 d2i_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS **a, const unsigned char **in, long len)
200 {
201 return (AUTHORITY_INFO_ACCESS *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
202 &AUTHORITY_INFO_ACCESS_it);
203 }
204 LCRYPTO_ALIAS(d2i_AUTHORITY_INFO_ACCESS);
205
206 int
i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS * a,unsigned char ** out)207 i2d_AUTHORITY_INFO_ACCESS(AUTHORITY_INFO_ACCESS *a, unsigned char **out)
208 {
209 return ASN1_item_i2d((ASN1_VALUE *)a, out, &AUTHORITY_INFO_ACCESS_it);
210 }
211 LCRYPTO_ALIAS(i2d_AUTHORITY_INFO_ACCESS);
212
213 AUTHORITY_INFO_ACCESS *
AUTHORITY_INFO_ACCESS_new(void)214 AUTHORITY_INFO_ACCESS_new(void)
215 {
216 return (AUTHORITY_INFO_ACCESS *)ASN1_item_new(&AUTHORITY_INFO_ACCESS_it);
217 }
218 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_new);
219
220 void
AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS * a)221 AUTHORITY_INFO_ACCESS_free(AUTHORITY_INFO_ACCESS *a)
222 {
223 ASN1_item_free((ASN1_VALUE *)a, &AUTHORITY_INFO_ACCESS_it);
224 }
225 LCRYPTO_ALIAS(AUTHORITY_INFO_ACCESS_free);
226
STACK_OF(CONF_VALUE)227 static STACK_OF(CONF_VALUE) *
228 i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method,
229 AUTHORITY_INFO_ACCESS *ainfo, STACK_OF(CONF_VALUE) *ret)
230 {
231 ACCESS_DESCRIPTION *desc;
232 CONF_VALUE *vtmp;
233 STACK_OF(CONF_VALUE) *free_ret = NULL;
234 char objtmp[80], *ntmp;
235 int i;
236
237 if (ret == NULL) {
238 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL)
239 return NULL;
240 }
241
242 for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
243 if ((desc = sk_ACCESS_DESCRIPTION_value(ainfo, i)) == NULL)
244 goto err;
245 if ((ret = i2v_GENERAL_NAME(method, desc->location,
246 ret)) == NULL)
247 goto err;
248 if ((vtmp = sk_CONF_VALUE_value(ret, i)) == NULL)
249 goto err;
250 if (!i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method))
251 goto err;
252 if (asprintf(&ntmp, "%s - %s", objtmp, vtmp->name) == -1) {
253 ntmp = NULL;
254 X509V3error(ERR_R_MALLOC_FAILURE);
255 goto err;
256 }
257 free(vtmp->name);
258 vtmp->name = ntmp;
259 }
260
261 return ret;
262
263 err:
264 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free);
265
266 return NULL;
267 }
268
269 static AUTHORITY_INFO_ACCESS *
v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)270 v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
271 STACK_OF(CONF_VALUE) *nval)
272 {
273 AUTHORITY_INFO_ACCESS *ainfo = NULL;
274 CONF_VALUE *cnf, ctmp;
275 ACCESS_DESCRIPTION *acc;
276 int i, objlen;
277 char *objtmp, *ptmp;
278
279 if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {
280 X509V3error(ERR_R_MALLOC_FAILURE);
281 return NULL;
282 }
283 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
284 cnf = sk_CONF_VALUE_value(nval, i);
285 if ((acc = ACCESS_DESCRIPTION_new()) == NULL) {
286 X509V3error(ERR_R_MALLOC_FAILURE);
287 goto err;
288 }
289 if (sk_ACCESS_DESCRIPTION_push(ainfo, acc) == 0) {
290 ACCESS_DESCRIPTION_free(acc);
291 X509V3error(ERR_R_MALLOC_FAILURE);
292 goto err;
293 }
294 ptmp = strchr(cnf->name, ';');
295 if (!ptmp) {
296 X509V3error(X509V3_R_INVALID_SYNTAX);
297 goto err;
298 }
299 objlen = ptmp - cnf->name;
300 ctmp.name = ptmp + 1;
301 ctmp.value = cnf->value;
302 if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
303 goto err;
304 if (!(objtmp = malloc(objlen + 1))) {
305 X509V3error(ERR_R_MALLOC_FAILURE);
306 goto err;
307 }
308 strlcpy(objtmp, cnf->name, objlen + 1);
309 acc->method = OBJ_txt2obj(objtmp, 0);
310 if (!acc->method) {
311 X509V3error(X509V3_R_BAD_OBJECT);
312 ERR_asprintf_error_data("value=%s", objtmp);
313 free(objtmp);
314 goto err;
315 }
316 free(objtmp);
317 }
318 return ainfo;
319
320 err:
321 sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
322 return NULL;
323 }
324
325 int
i2a_ACCESS_DESCRIPTION(BIO * bp,const ACCESS_DESCRIPTION * a)326 i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION* a)
327 {
328 i2a_ASN1_OBJECT(bp, a->method);
329 return 2;
330 }
331 LCRYPTO_ALIAS(i2a_ACCESS_DESCRIPTION);
332