1 /* $OpenBSD: x509_ocsp.c,v 1.2 2022/01/07 09:45:52 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/opensslconf.h>
63
64 #ifndef OPENSSL_NO_OCSP
65
66 #include <openssl/asn1.h>
67 #include <openssl/conf.h>
68 #include <openssl/err.h>
69 #include <openssl/ocsp.h>
70 #include <openssl/x509v3.h>
71
72 #include "ocsp_local.h"
73
74 /* OCSP extensions and a couple of CRL entry extensions
75 */
76
77 static int i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *nonce,
78 BIO *out, int indent);
79 static int i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *nonce,
80 BIO *out, int indent);
81 static int i2r_object(const X509V3_EXT_METHOD *method, void *obj, BIO *out,
82 int indent);
83
84 static void *ocsp_nonce_new(void);
85 static int i2d_ocsp_nonce(void *a, unsigned char **pp);
86 static void *d2i_ocsp_nonce(void *a, const unsigned char **pp, long length);
87 static void ocsp_nonce_free(void *a);
88 static int i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce,
89 BIO *out, int indent);
90
91 static int i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method,
92 void *nocheck, BIO *out, int indent);
93 static void *s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
94 const char *str);
95 static int i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in,
96 BIO *bp, int ind);
97
98 const X509V3_EXT_METHOD v3_ocsp_crlid = {
99 .ext_nid = NID_id_pkix_OCSP_CrlID,
100 .ext_flags = 0,
101 .it = &OCSP_CRLID_it,
102 .ext_new = NULL,
103 .ext_free = NULL,
104 .d2i = NULL,
105 .i2d = NULL,
106 .i2s = NULL,
107 .s2i = NULL,
108 .i2v = NULL,
109 .v2i = NULL,
110 .i2r = i2r_ocsp_crlid,
111 .r2i = NULL,
112 .usr_data = NULL,
113 };
114
115 const X509V3_EXT_METHOD v3_ocsp_acutoff = {
116 .ext_nid = NID_id_pkix_OCSP_archiveCutoff,
117 .ext_flags = 0,
118 .it = &ASN1_GENERALIZEDTIME_it,
119 .ext_new = NULL,
120 .ext_free = NULL,
121 .d2i = NULL,
122 .i2d = NULL,
123 .i2s = NULL,
124 .s2i = NULL,
125 .i2v = NULL,
126 .v2i = NULL,
127 .i2r = i2r_ocsp_acutoff,
128 .r2i = NULL,
129 .usr_data = NULL,
130 };
131
132 const X509V3_EXT_METHOD v3_crl_invdate = {
133 .ext_nid = NID_invalidity_date,
134 .ext_flags = 0,
135 .it = &ASN1_GENERALIZEDTIME_it,
136 .ext_new = NULL,
137 .ext_free = NULL,
138 .d2i = NULL,
139 .i2d = NULL,
140 .i2s = NULL,
141 .s2i = NULL,
142 .i2v = NULL,
143 .v2i = NULL,
144 .i2r = i2r_ocsp_acutoff,
145 .r2i = NULL,
146 .usr_data = NULL,
147 };
148
149 const X509V3_EXT_METHOD v3_crl_hold = {
150 .ext_nid = NID_hold_instruction_code,
151 .ext_flags = 0,
152 .it = &ASN1_OBJECT_it,
153 .ext_new = NULL,
154 .ext_free = NULL,
155 .d2i = NULL,
156 .i2d = NULL,
157 .i2s = NULL,
158 .s2i = NULL,
159 .i2v = NULL,
160 .v2i = NULL,
161 .i2r = i2r_object,
162 .r2i = NULL,
163 .usr_data = NULL,
164 };
165
166 const X509V3_EXT_METHOD v3_ocsp_nonce = {
167 .ext_nid = NID_id_pkix_OCSP_Nonce,
168 .ext_flags = 0,
169 .it = NULL,
170 .ext_new = ocsp_nonce_new,
171 .ext_free = ocsp_nonce_free,
172 .d2i = d2i_ocsp_nonce,
173 .i2d = i2d_ocsp_nonce,
174 .i2s = NULL,
175 .s2i = NULL,
176 .i2v = NULL,
177 .v2i = NULL,
178 .i2r = i2r_ocsp_nonce,
179 .r2i = NULL,
180 .usr_data = NULL,
181 };
182
183 const X509V3_EXT_METHOD v3_ocsp_nocheck = {
184 .ext_nid = NID_id_pkix_OCSP_noCheck,
185 .ext_flags = 0,
186 .it = &ASN1_NULL_it,
187 .ext_new = NULL,
188 .ext_free = NULL,
189 .d2i = NULL,
190 .i2d = NULL,
191 .i2s = NULL,
192 .s2i = s2i_ocsp_nocheck,
193 .i2v = NULL,
194 .v2i = NULL,
195 .i2r = i2r_ocsp_nocheck,
196 .r2i = NULL,
197 .usr_data = NULL,
198 };
199
200 const X509V3_EXT_METHOD v3_ocsp_serviceloc = {
201 .ext_nid = NID_id_pkix_OCSP_serviceLocator,
202 .ext_flags = 0,
203 .it = &OCSP_SERVICELOC_it,
204 .ext_new = NULL,
205 .ext_free = NULL,
206 .d2i = NULL,
207 .i2d = NULL,
208 .i2s = NULL,
209 .s2i = NULL,
210 .i2v = NULL,
211 .v2i = NULL,
212 .i2r = i2r_ocsp_serviceloc,
213 .r2i = NULL,
214 .usr_data = NULL,
215 };
216
217 static int
i2r_ocsp_crlid(const X509V3_EXT_METHOD * method,void * in,BIO * bp,int ind)218 i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *in, BIO *bp, int ind)
219 {
220 OCSP_CRLID *a = in;
221 if (a->crlUrl) {
222 if (BIO_printf(bp, "%*scrlUrl: ", ind, "") <= 0)
223 goto err;
224 if (!ASN1_STRING_print(bp, (ASN1_STRING*)a->crlUrl))
225 goto err;
226 if (BIO_write(bp, "\n", 1) <= 0)
227 goto err;
228 }
229 if (a->crlNum) {
230 if (BIO_printf(bp, "%*scrlNum: ", ind, "") <= 0)
231 goto err;
232 if (i2a_ASN1_INTEGER(bp, a->crlNum) <= 0)
233 goto err;
234 if (BIO_write(bp, "\n", 1) <= 0)
235 goto err;
236 }
237 if (a->crlTime) {
238 if (BIO_printf(bp, "%*scrlTime: ", ind, "") <= 0)
239 goto err;
240 if (!ASN1_GENERALIZEDTIME_print(bp, a->crlTime))
241 goto err;
242 if (BIO_write(bp, "\n", 1) <= 0)
243 goto err;
244 }
245 return 1;
246
247 err:
248 return 0;
249 }
250
251 static int
i2r_ocsp_acutoff(const X509V3_EXT_METHOD * method,void * cutoff,BIO * bp,int ind)252 i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *cutoff, BIO *bp,
253 int ind)
254 {
255 if (BIO_printf(bp, "%*s", ind, "") <= 0)
256 return 0;
257 if (!ASN1_GENERALIZEDTIME_print(bp, cutoff))
258 return 0;
259 return 1;
260 }
261
262 static int
i2r_object(const X509V3_EXT_METHOD * method,void * oid,BIO * bp,int ind)263 i2r_object(const X509V3_EXT_METHOD *method, void *oid, BIO *bp, int ind)
264 {
265 if (BIO_printf(bp, "%*s", ind, "") <= 0)
266 return 0;
267 if (i2a_ASN1_OBJECT(bp, oid) <= 0)
268 return 0;
269 return 1;
270 }
271
272 /* OCSP nonce. This is needs special treatment because it doesn't have
273 * an ASN1 encoding at all: it just contains arbitrary data.
274 */
275
276 static void *
ocsp_nonce_new(void)277 ocsp_nonce_new(void)
278 {
279 return ASN1_OCTET_STRING_new();
280 }
281
282 static int
i2d_ocsp_nonce(void * a,unsigned char ** pp)283 i2d_ocsp_nonce(void *a, unsigned char **pp)
284 {
285 ASN1_OCTET_STRING *os = a;
286
287 if (pp) {
288 memcpy(*pp, os->data, os->length);
289 *pp += os->length;
290 }
291 return os->length;
292 }
293
294 static void *
d2i_ocsp_nonce(void * a,const unsigned char ** pp,long length)295 d2i_ocsp_nonce(void *a, const unsigned char **pp, long length)
296 {
297 ASN1_OCTET_STRING *os, **pos;
298
299 pos = a;
300 if (pos == NULL || *pos == NULL) {
301 os = ASN1_OCTET_STRING_new();
302 if (os == NULL)
303 goto err;
304 } else
305 os = *pos;
306 if (ASN1_OCTET_STRING_set(os, *pp, length) == 0)
307 goto err;
308
309 *pp += length;
310
311 if (pos != NULL)
312 *pos = os;
313 return os;
314
315 err:
316 if (pos == NULL || *pos != os)
317 ASN1_OCTET_STRING_free(os);
318 OCSPerror(ERR_R_MALLOC_FAILURE);
319 return NULL;
320 }
321
322 static void
ocsp_nonce_free(void * a)323 ocsp_nonce_free(void *a)
324 {
325 ASN1_OCTET_STRING_free(a);
326 }
327
328 static int
i2r_ocsp_nonce(const X509V3_EXT_METHOD * method,void * nonce,BIO * out,int indent)329 i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce, BIO *out,
330 int indent)
331 {
332 if (BIO_printf(out, "%*s", indent, "") <= 0)
333 return 0;
334 if (i2a_ASN1_STRING(out, nonce, V_ASN1_OCTET_STRING) <= 0)
335 return 0;
336 return 1;
337 }
338
339 /* Nocheck is just a single NULL. Don't print anything and always set it */
340
341 static int
i2r_ocsp_nocheck(const X509V3_EXT_METHOD * method,void * nocheck,BIO * out,int indent)342 i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method, void *nocheck, BIO *out,
343 int indent)
344 {
345 return 1;
346 }
347
348 static void *
s2i_ocsp_nocheck(const X509V3_EXT_METHOD * method,X509V3_CTX * ctx,const char * str)349 s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
350 const char *str)
351 {
352 return ASN1_NULL_new();
353 }
354
355 static int
i2r_ocsp_serviceloc(const X509V3_EXT_METHOD * method,void * in,BIO * bp,int ind)356 i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in, BIO *bp, int ind)
357 {
358 int i;
359 OCSP_SERVICELOC *a = in;
360 ACCESS_DESCRIPTION *ad;
361
362 if (BIO_printf(bp, "%*sIssuer: ", ind, "") <= 0)
363 goto err;
364 if (X509_NAME_print_ex(bp, a->issuer, 0, XN_FLAG_ONELINE) <= 0)
365 goto err;
366 for (i = 0; i < sk_ACCESS_DESCRIPTION_num(a->locator); i++) {
367 ad = sk_ACCESS_DESCRIPTION_value(a->locator, i);
368 if (BIO_printf(bp, "\n%*s", (2 * ind), "") <= 0)
369 goto err;
370 if (i2a_ASN1_OBJECT(bp, ad->method) <= 0)
371 goto err;
372 if (BIO_puts(bp, " - ") <= 0)
373 goto err;
374 if (GENERAL_NAME_print(bp, ad->location) <= 0)
375 goto err;
376 }
377 return 1;
378
379 err:
380 return 0;
381 }
382 #endif
383