1 /* $OpenBSD: ocsp_ext.c,v 1.20 2022/01/07 09:45:52 tb Exp $ */
2 /* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
3 * project. */
4
5 /* History:
6 This file was transfered to Richard Levitte from CertCo by Kathy
7 Weinhold in mid-spring 2000 to be included in OpenSSL or released
8 as a patch kit. */
9
10 /* ====================================================================
11 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. All advertising materials mentioning features or use of this
26 * software must display the following acknowledgment:
27 * "This product includes software developed by the OpenSSL Project
28 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
29 *
30 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission. For written permission, please contact
33 * openssl-core@openssl.org.
34 *
35 * 5. Products derived from this software may not be called "OpenSSL"
36 * nor may "OpenSSL" appear in their names without prior written
37 * permission of the OpenSSL Project.
38 *
39 * 6. Redistributions of any form whatsoever must retain the following
40 * acknowledgment:
41 * "This product includes software developed by the OpenSSL Project
42 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
45 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
48 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
53 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
54 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
55 * OF THE POSSIBILITY OF SUCH DAMAGE.
56 * ====================================================================
57 *
58 * This product includes cryptographic software written by Eric Young
59 * (eay@cryptsoft.com). This product includes software written by Tim
60 * Hudson (tjh@cryptsoft.com).
61 *
62 */
63
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <string.h>
67
68 #include <openssl/objects.h>
69 #include <openssl/ocsp.h>
70 #include <openssl/x509.h>
71 #include <openssl/x509v3.h>
72
73 #include "ocsp_local.h"
74 #include "x509_lcl.h"
75
76 /* Standard wrapper functions for extensions */
77
78 /* OCSP request extensions */
79
80 int
OCSP_REQUEST_get_ext_count(OCSP_REQUEST * x)81 OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x)
82 {
83 return X509v3_get_ext_count(x->tbsRequest->requestExtensions);
84 }
85
86 int
OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST * x,int nid,int lastpos)87 OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos)
88 {
89 return X509v3_get_ext_by_NID(x->tbsRequest->requestExtensions, nid,
90 lastpos);
91 }
92
93 int
OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST * x,const ASN1_OBJECT * obj,int lastpos)94 OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST *x, const ASN1_OBJECT *obj,
95 int lastpos)
96 {
97 return X509v3_get_ext_by_OBJ(x->tbsRequest->requestExtensions, obj,
98 lastpos);
99 }
100
101 int
OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST * x,int crit,int lastpos)102 OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos)
103 {
104 return X509v3_get_ext_by_critical(x->tbsRequest->requestExtensions,
105 crit, lastpos);
106 }
107
108 X509_EXTENSION *
OCSP_REQUEST_get_ext(OCSP_REQUEST * x,int loc)109 OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc)
110 {
111 return X509v3_get_ext(x->tbsRequest->requestExtensions, loc);
112 }
113
114 X509_EXTENSION *
OCSP_REQUEST_delete_ext(OCSP_REQUEST * x,int loc)115 OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc)
116 {
117 return X509v3_delete_ext(x->tbsRequest->requestExtensions, loc);
118 }
119
120 void *
OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST * x,int nid,int * crit,int * idx)121 OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST *x, int nid, int *crit, int *idx)
122 {
123 return X509V3_get_d2i(x->tbsRequest->requestExtensions, nid, crit, idx);
124 }
125
126 int
OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST * x,int nid,void * value,int crit,unsigned long flags)127 OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST *x, int nid, void *value, int crit,
128 unsigned long flags)
129 {
130 return X509V3_add1_i2d(&x->tbsRequest->requestExtensions, nid, value,
131 crit, flags);
132 }
133
134 int
OCSP_REQUEST_add_ext(OCSP_REQUEST * x,X509_EXTENSION * ex,int loc)135 OCSP_REQUEST_add_ext(OCSP_REQUEST *x, X509_EXTENSION *ex, int loc)
136 {
137 return X509v3_add_ext(&(x->tbsRequest->requestExtensions), ex,
138 loc) != NULL;
139 }
140
141 /* Single extensions */
142
143 int
OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ * x)144 OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x)
145 {
146 return X509v3_get_ext_count(x->singleRequestExtensions);
147 }
148
149 int
OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ * x,int nid,int lastpos)150 OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos)
151 {
152 return X509v3_get_ext_by_NID(x->singleRequestExtensions, nid, lastpos);
153 }
154
155 int
OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ * x,const ASN1_OBJECT * obj,int lastpos)156 OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ *x, const ASN1_OBJECT *obj, int lastpos)
157 {
158 return X509v3_get_ext_by_OBJ(x->singleRequestExtensions, obj, lastpos);
159 }
160
161 int
OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ * x,int crit,int lastpos)162 OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos)
163 {
164 return X509v3_get_ext_by_critical(x->singleRequestExtensions, crit,
165 lastpos);
166 }
167
168 X509_EXTENSION *
OCSP_ONEREQ_get_ext(OCSP_ONEREQ * x,int loc)169 OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc)
170 {
171 return X509v3_get_ext(x->singleRequestExtensions, loc);
172 }
173
174 X509_EXTENSION *
OCSP_ONEREQ_delete_ext(OCSP_ONEREQ * x,int loc)175 OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc)
176 {
177 return X509v3_delete_ext(x->singleRequestExtensions, loc);
178 }
179
180 void *
OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ * x,int nid,int * crit,int * idx)181 OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ *x, int nid, int *crit, int *idx)
182 {
183 return X509V3_get_d2i(x->singleRequestExtensions, nid, crit, idx);
184 }
185
186 int
OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ * x,int nid,void * value,int crit,unsigned long flags)187 OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ *x, int nid, void *value, int crit,
188 unsigned long flags)
189 {
190 return X509V3_add1_i2d(&x->singleRequestExtensions, nid, value, crit,
191 flags);
192 }
193
194 int
OCSP_ONEREQ_add_ext(OCSP_ONEREQ * x,X509_EXTENSION * ex,int loc)195 OCSP_ONEREQ_add_ext(OCSP_ONEREQ *x, X509_EXTENSION *ex, int loc)
196 {
197 return X509v3_add_ext(&(x->singleRequestExtensions), ex, loc) != NULL;
198 }
199
200 /* OCSP Basic response */
201
202 int
OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP * x)203 OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x)
204 {
205 return X509v3_get_ext_count(x->tbsResponseData->responseExtensions);
206 }
207
208 int
OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP * x,int nid,int lastpos)209 OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos)
210 {
211 return X509v3_get_ext_by_NID(x->tbsResponseData->responseExtensions,
212 nid, lastpos);
213 }
214
215 int
OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP * x,const ASN1_OBJECT * obj,int lastpos)216 OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP *x, const ASN1_OBJECT *obj,
217 int lastpos)
218 {
219 return X509v3_get_ext_by_OBJ(x->tbsResponseData->responseExtensions,
220 obj, lastpos);
221 }
222
223 int
OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP * x,int crit,int lastpos)224 OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit, int lastpos)
225 {
226 return X509v3_get_ext_by_critical(
227 x->tbsResponseData->responseExtensions, crit, lastpos);
228 }
229
230 X509_EXTENSION *
OCSP_BASICRESP_get_ext(OCSP_BASICRESP * x,int loc)231 OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc)
232 {
233 return X509v3_get_ext(x->tbsResponseData->responseExtensions, loc);
234 }
235
236 X509_EXTENSION *
OCSP_BASICRESP_delete_ext(OCSP_BASICRESP * x,int loc)237 OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc)
238 {
239 return X509v3_delete_ext(x->tbsResponseData->responseExtensions, loc);
240 }
241
242 void *
OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP * x,int nid,int * crit,int * idx)243 OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP *x, int nid, int *crit, int *idx)
244 {
245 return X509V3_get_d2i(x->tbsResponseData->responseExtensions, nid,
246 crit, idx);
247 }
248
249 int
OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP * x,int nid,void * value,int crit,unsigned long flags)250 OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP *x, int nid, void *value, int crit,
251 unsigned long flags)
252 {
253 return X509V3_add1_i2d(&x->tbsResponseData->responseExtensions, nid,
254 value, crit, flags);
255 }
256
257 int
OCSP_BASICRESP_add_ext(OCSP_BASICRESP * x,X509_EXTENSION * ex,int loc)258 OCSP_BASICRESP_add_ext(OCSP_BASICRESP *x, X509_EXTENSION *ex, int loc)
259 {
260 return X509v3_add_ext(&(x->tbsResponseData->responseExtensions), ex,
261 loc) != NULL;
262 }
263
264 /* OCSP single response extensions */
265
266 int
OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP * x)267 OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x)
268 {
269 return X509v3_get_ext_count(x->singleExtensions);
270 }
271
272 int
OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP * x,int nid,int lastpos)273 OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos)
274 {
275 return X509v3_get_ext_by_NID(x->singleExtensions, nid, lastpos);
276 }
277
278 int
OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP * x,const ASN1_OBJECT * obj,int lastpos)279 OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP *x, const ASN1_OBJECT *obj,
280 int lastpos)
281 {
282 return X509v3_get_ext_by_OBJ(x->singleExtensions, obj, lastpos);
283 }
284
285 int
OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP * x,int crit,int lastpos)286 OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit, int lastpos)
287 {
288 return X509v3_get_ext_by_critical(x->singleExtensions, crit, lastpos);
289 }
290
291 X509_EXTENSION *
OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP * x,int loc)292 OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc)
293 {
294 return X509v3_get_ext(x->singleExtensions, loc);
295 }
296
297 X509_EXTENSION *
OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP * x,int loc)298 OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc)
299 {
300 return X509v3_delete_ext(x->singleExtensions, loc);
301 }
302
303 void *
OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP * x,int nid,int * crit,int * idx)304 OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP *x, int nid, int *crit, int *idx)
305 {
306 return X509V3_get_d2i(x->singleExtensions, nid, crit, idx);
307 }
308
309 int
OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP * x,int nid,void * value,int crit,unsigned long flags)310 OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP *x, int nid, void *value, int crit,
311 unsigned long flags)
312 {
313 return X509V3_add1_i2d(&x->singleExtensions, nid, value, crit, flags);
314 }
315
316 int
OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP * x,X509_EXTENSION * ex,int loc)317 OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP *x, X509_EXTENSION *ex, int loc)
318 {
319 return X509v3_add_ext(&(x->singleExtensions), ex, loc) != NULL;
320 }
321
322 /* Nonce handling functions */
323
324 /* Add a nonce to an extension stack. A nonce can be specificed or if NULL
325 * a random nonce will be generated.
326 * Note: OpenSSL 0.9.7d and later create an OCTET STRING containing the
327 * nonce, previous versions used the raw nonce.
328 */
329
330 static int
ocsp_add1_nonce(STACK_OF (X509_EXTENSION)** exts,unsigned char * val,int len)331 ocsp_add1_nonce(STACK_OF(X509_EXTENSION) **exts, unsigned char *val, int len)
332 {
333 unsigned char *tmpval;
334 ASN1_OCTET_STRING os;
335 int ret = 0;
336
337 if (len <= 0)
338 len = OCSP_DEFAULT_NONCE_LENGTH;
339 /* Create the OCTET STRING manually by writing out the header and
340 * appending the content octets. This avoids an extra memory allocation
341 * operation in some cases. Applications should *NOT* do this because
342 * it relies on library internals.
343 */
344 os.length = ASN1_object_size(0, len, V_ASN1_OCTET_STRING);
345 os.data = malloc(os.length);
346 if (os.data == NULL)
347 goto err;
348 tmpval = os.data;
349 ASN1_put_object(&tmpval, 0, len, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL);
350 if (val)
351 memcpy(tmpval, val, len);
352 else
353 arc4random_buf(tmpval, len);
354 if (!X509V3_add1_i2d(exts, NID_id_pkix_OCSP_Nonce, &os, 0,
355 X509V3_ADD_REPLACE))
356 goto err;
357 ret = 1;
358
359 err:
360 free(os.data);
361 return ret;
362 }
363
364 /* Add nonce to an OCSP request */
365 int
OCSP_request_add1_nonce(OCSP_REQUEST * req,unsigned char * val,int len)366 OCSP_request_add1_nonce(OCSP_REQUEST *req, unsigned char *val, int len)
367 {
368 return ocsp_add1_nonce(&req->tbsRequest->requestExtensions, val, len);
369 }
370
371 /* Same as above but for a response */
372 int
OCSP_basic_add1_nonce(OCSP_BASICRESP * resp,unsigned char * val,int len)373 OCSP_basic_add1_nonce(OCSP_BASICRESP *resp, unsigned char *val, int len)
374 {
375 return ocsp_add1_nonce(&resp->tbsResponseData->responseExtensions, val,
376 len);
377 }
378
379 /* Check nonce validity in a request and response.
380 * Return value reflects result:
381 * 1: nonces present and equal.
382 * 2: nonces both absent.
383 * 3: nonce present in response only.
384 * 0: nonces both present and not equal.
385 * -1: nonce in request only.
386 *
387 * For most responders clients can check return > 0.
388 * If responder doesn't handle nonces return != 0 may be
389 * necessary. return == 0 is always an error.
390 */
391 int
OCSP_check_nonce(OCSP_REQUEST * req,OCSP_BASICRESP * bs)392 OCSP_check_nonce(OCSP_REQUEST *req, OCSP_BASICRESP *bs)
393 {
394 /*
395 * Since we are only interested in the presence or absence of
396 * the nonce and comparing its value there is no need to use
397 * the X509V3 routines: this way we can avoid them allocating an
398 * ASN1_OCTET_STRING structure for the value which would be
399 * freed immediately anyway.
400 */
401 int req_idx, resp_idx;
402 X509_EXTENSION *req_ext, *resp_ext;
403
404 req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
405 resp_idx = OCSP_BASICRESP_get_ext_by_NID(bs,
406 NID_id_pkix_OCSP_Nonce, -1);
407 /* Check both absent */
408 if (req_idx < 0 && resp_idx < 0)
409 return 2;
410 /* Check in request only */
411 if (req_idx >= 0 && resp_idx < 0)
412 return -1;
413 /* Check in response but not request */
414 if (req_idx < 0 && resp_idx >= 0)
415 return 3;
416 /* Otherwise nonce in request and response so retrieve the extensions */
417 req_ext = OCSP_REQUEST_get_ext(req, req_idx);
418 resp_ext = OCSP_BASICRESP_get_ext(bs, resp_idx);
419 if (ASN1_OCTET_STRING_cmp(req_ext->value, resp_ext->value))
420 return 0;
421 return 1;
422 }
423
424 /* Copy the nonce value (if any) from an OCSP request to
425 * a response.
426 */
427 int
OCSP_copy_nonce(OCSP_BASICRESP * resp,OCSP_REQUEST * req)428 OCSP_copy_nonce(OCSP_BASICRESP *resp, OCSP_REQUEST *req)
429 {
430 X509_EXTENSION *req_ext;
431 int req_idx;
432
433 /* Check for nonce in request */
434 req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
435 /* If no nonce that's OK */
436 if (req_idx < 0)
437 return 2;
438 req_ext = OCSP_REQUEST_get_ext(req, req_idx);
439 return OCSP_BASICRESP_add_ext(resp, req_ext, -1);
440 }
441
442 X509_EXTENSION *
OCSP_crlID_new(const char * url,long * n,char * tim)443 OCSP_crlID_new(const char *url, long *n, char *tim)
444 {
445 X509_EXTENSION *x = NULL;
446 OCSP_CRLID *cid = NULL;
447
448 if (!(cid = OCSP_CRLID_new()))
449 goto err;
450 if (url) {
451 if (!(cid->crlUrl = ASN1_IA5STRING_new()))
452 goto err;
453 if (!(ASN1_STRING_set(cid->crlUrl, url, -1)))
454 goto err;
455 }
456 if (n) {
457 if (!(cid->crlNum = ASN1_INTEGER_new()))
458 goto err;
459 if (!(ASN1_INTEGER_set(cid->crlNum, *n)))
460 goto err;
461 }
462 if (tim) {
463 if (!(cid->crlTime = ASN1_GENERALIZEDTIME_new()))
464 goto err;
465 if (!(ASN1_GENERALIZEDTIME_set_string(cid->crlTime, tim)))
466 goto err;
467 }
468 x = X509V3_EXT_i2d(NID_id_pkix_OCSP_CrlID, 0, cid);
469
470 err:
471 if (cid)
472 OCSP_CRLID_free(cid);
473 return x;
474 }
475
476 /* AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER */
477 X509_EXTENSION *
OCSP_accept_responses_new(char ** oids)478 OCSP_accept_responses_new(char **oids)
479 {
480 int nid;
481 STACK_OF(ASN1_OBJECT) *sk = NULL;
482 ASN1_OBJECT *o = NULL;
483 X509_EXTENSION *x = NULL;
484
485 if (!(sk = sk_ASN1_OBJECT_new_null()))
486 return NULL;
487 while (oids && *oids) {
488 if ((nid = OBJ_txt2nid(*oids)) != NID_undef &&
489 (o = OBJ_nid2obj(nid)))
490 if (sk_ASN1_OBJECT_push(sk, o) == 0) {
491 sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
492 return NULL;
493 }
494 oids++;
495 }
496 x = X509V3_EXT_i2d(NID_id_pkix_OCSP_acceptableResponses, 0, sk);
497 sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
498 return x;
499 }
500
501 /* ArchiveCutoff ::= GeneralizedTime */
502 X509_EXTENSION *
OCSP_archive_cutoff_new(char * tim)503 OCSP_archive_cutoff_new(char* tim)
504 {
505 X509_EXTENSION *x = NULL;
506 ASN1_GENERALIZEDTIME *gt = NULL;
507
508 if (!(gt = ASN1_GENERALIZEDTIME_new()))
509 return NULL;
510 if (!(ASN1_GENERALIZEDTIME_set_string(gt, tim)))
511 goto err;
512 x = X509V3_EXT_i2d(NID_id_pkix_OCSP_archiveCutoff, 0, gt);
513
514 err:
515 if (gt)
516 ASN1_GENERALIZEDTIME_free(gt);
517 return x;
518 }
519
520 /* per ACCESS_DESCRIPTION parameter are oids, of which there are currently
521 * two--NID_ad_ocsp, NID_id_ad_caIssuers--and GeneralName value. This
522 * method forces NID_ad_ocsp and uniformResourceLocator [6] IA5String.
523 */
524 X509_EXTENSION *
OCSP_url_svcloc_new(X509_NAME * issuer,const char ** urls)525 OCSP_url_svcloc_new(X509_NAME* issuer, const char **urls)
526 {
527 X509_EXTENSION *x = NULL;
528 ASN1_IA5STRING *ia5 = NULL;
529 OCSP_SERVICELOC *sloc = NULL;
530 ACCESS_DESCRIPTION *ad = NULL;
531
532 if (!(sloc = OCSP_SERVICELOC_new()))
533 goto err;
534 if (!(sloc->issuer = X509_NAME_dup(issuer)))
535 goto err;
536 if (urls && *urls &&
537 !(sloc->locator = sk_ACCESS_DESCRIPTION_new_null()))
538 goto err;
539 while (urls && *urls) {
540 if (!(ad = ACCESS_DESCRIPTION_new()))
541 goto err;
542 if (!(ad->method = OBJ_nid2obj(NID_ad_OCSP)))
543 goto err;
544 if (!(ad->location = GENERAL_NAME_new()))
545 goto err;
546 if (!(ia5 = ASN1_IA5STRING_new()))
547 goto err;
548 if (!ASN1_STRING_set((ASN1_STRING*)ia5, *urls, -1))
549 goto err;
550 ad->location->type = GEN_URI;
551 ad->location->d.ia5 = ia5;
552 ia5 = NULL;
553 if (!sk_ACCESS_DESCRIPTION_push(sloc->locator, ad))
554 goto err;
555 ad = NULL;
556 urls++;
557 }
558 x = X509V3_EXT_i2d(NID_id_pkix_OCSP_serviceLocator, 0, sloc);
559
560 err:
561 if (ia5)
562 ASN1_IA5STRING_free(ia5);
563 if (ad)
564 ACCESS_DESCRIPTION_free(ad);
565 if (sloc)
566 OCSP_SERVICELOC_free(sloc);
567 return x;
568 }
569