1 /* $OpenBSD: x_crl.c,v 1.37 2022/02/24 22:05:06 beck 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/err.h>
65 #include <openssl/x509.h>
66 #include <openssl/x509v3.h>
67
68 #include "asn1_locl.h"
69 #include "x509_lcl.h"
70
71 static int X509_REVOKED_cmp(const X509_REVOKED * const *a,
72 const X509_REVOKED * const *b);
73 static void setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp);
74
75 static const ASN1_TEMPLATE X509_REVOKED_seq_tt[] = {
76 {
77 .offset = offsetof(X509_REVOKED, serialNumber),
78 .field_name = "serialNumber",
79 .item = &ASN1_INTEGER_it,
80 },
81 {
82 .offset = offsetof(X509_REVOKED, revocationDate),
83 .field_name = "revocationDate",
84 .item = &ASN1_TIME_it,
85 },
86 {
87 .flags = ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL,
88 .offset = offsetof(X509_REVOKED, extensions),
89 .field_name = "extensions",
90 .item = &X509_EXTENSION_it,
91 },
92 };
93
94 const ASN1_ITEM X509_REVOKED_it = {
95 .itype = ASN1_ITYPE_SEQUENCE,
96 .utype = V_ASN1_SEQUENCE,
97 .templates = X509_REVOKED_seq_tt,
98 .tcount = sizeof(X509_REVOKED_seq_tt) / sizeof(ASN1_TEMPLATE),
99 .size = sizeof(X509_REVOKED),
100 .sname = "X509_REVOKED",
101 };
102
103 static int def_crl_verify(X509_CRL *crl, EVP_PKEY *r);
104 static int def_crl_lookup(X509_CRL *crl, X509_REVOKED **ret,
105 ASN1_INTEGER *serial, X509_NAME *issuer);
106
107 static X509_CRL_METHOD int_crl_meth = {
108 .crl_lookup = def_crl_lookup,
109 .crl_verify = def_crl_verify
110 };
111
112 static const X509_CRL_METHOD *default_crl_method = &int_crl_meth;
113
114 /* The X509_CRL_INFO structure needs a bit of customisation.
115 * Since we cache the original encoding the signature wont be affected by
116 * reordering of the revoked field.
117 */
118 static int
crl_inf_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)119 crl_inf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
120 {
121 X509_CRL_INFO *a = (X509_CRL_INFO *)*pval;
122
123 if (!a || !a->revoked)
124 return 1;
125 switch (operation) {
126 /* Just set cmp function here. We don't sort because that
127 * would affect the output of X509_CRL_print().
128 */
129 case ASN1_OP_D2I_POST:
130 (void)sk_X509_REVOKED_set_cmp_func(a->revoked, X509_REVOKED_cmp);
131 break;
132 }
133 return 1;
134 }
135
136
137 static const ASN1_AUX X509_CRL_INFO_aux = {
138 .flags = ASN1_AFLG_ENCODING,
139 .asn1_cb = crl_inf_cb,
140 .enc_offset = offsetof(X509_CRL_INFO, enc),
141 };
142 static const ASN1_TEMPLATE X509_CRL_INFO_seq_tt[] = {
143 {
144 .flags = ASN1_TFLG_OPTIONAL,
145 .offset = offsetof(X509_CRL_INFO, version),
146 .field_name = "version",
147 .item = &ASN1_INTEGER_it,
148 },
149 {
150 .offset = offsetof(X509_CRL_INFO, sig_alg),
151 .field_name = "sig_alg",
152 .item = &X509_ALGOR_it,
153 },
154 {
155 .offset = offsetof(X509_CRL_INFO, issuer),
156 .field_name = "issuer",
157 .item = &X509_NAME_it,
158 },
159 {
160 .offset = offsetof(X509_CRL_INFO, lastUpdate),
161 .field_name = "lastUpdate",
162 .item = &ASN1_TIME_it,
163 },
164 {
165 .flags = ASN1_TFLG_OPTIONAL,
166 .offset = offsetof(X509_CRL_INFO, nextUpdate),
167 .field_name = "nextUpdate",
168 .item = &ASN1_TIME_it,
169 },
170 {
171 .flags = ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL,
172 .offset = offsetof(X509_CRL_INFO, revoked),
173 .field_name = "revoked",
174 .item = &X509_REVOKED_it,
175 },
176 {
177 .flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_OPTIONAL,
178 .offset = offsetof(X509_CRL_INFO, extensions),
179 .field_name = "extensions",
180 .item = &X509_EXTENSION_it,
181 },
182 };
183
184 const ASN1_ITEM X509_CRL_INFO_it = {
185 .itype = ASN1_ITYPE_SEQUENCE,
186 .utype = V_ASN1_SEQUENCE,
187 .templates = X509_CRL_INFO_seq_tt,
188 .tcount = sizeof(X509_CRL_INFO_seq_tt) / sizeof(ASN1_TEMPLATE),
189 .funcs = &X509_CRL_INFO_aux,
190 .size = sizeof(X509_CRL_INFO),
191 .sname = "X509_CRL_INFO",
192 };
193
194 /* Set CRL entry issuer according to CRL certificate issuer extension.
195 * Check for unhandled critical CRL entry extensions.
196 */
197
198 static int
crl_set_issuers(X509_CRL * crl)199 crl_set_issuers(X509_CRL *crl)
200 {
201 int i, j;
202 GENERAL_NAMES *gens, *gtmp;
203 STACK_OF(X509_REVOKED) *revoked;
204
205 revoked = X509_CRL_get_REVOKED(crl);
206
207 gens = NULL;
208 for (i = 0; i < sk_X509_REVOKED_num(revoked); i++) {
209 X509_REVOKED *rev = sk_X509_REVOKED_value(revoked, i);
210 STACK_OF(X509_EXTENSION) *exts;
211 ASN1_ENUMERATED *reason;
212 X509_EXTENSION *ext;
213 gtmp = X509_REVOKED_get_ext_d2i(rev, NID_certificate_issuer,
214 &j, NULL);
215 if (!gtmp && (j != -1)) {
216 crl->flags |= EXFLAG_INVALID;
217 return 1;
218 }
219
220 if (gtmp) {
221 gens = gtmp;
222 if (!crl->issuers) {
223 crl->issuers = sk_GENERAL_NAMES_new_null();
224 if (!crl->issuers)
225 return 0;
226 }
227 if (!sk_GENERAL_NAMES_push(crl->issuers, gtmp))
228 return 0;
229 }
230 rev->issuer = gens;
231
232 reason = X509_REVOKED_get_ext_d2i(rev, NID_crl_reason,
233 &j, NULL);
234 if (!reason && (j != -1)) {
235 crl->flags |= EXFLAG_INVALID;
236 return 1;
237 }
238
239 if (reason) {
240 rev->reason = ASN1_ENUMERATED_get(reason);
241 ASN1_ENUMERATED_free(reason);
242 } else
243 rev->reason = CRL_REASON_NONE;
244
245 /* Check for critical CRL entry extensions */
246
247 exts = rev->extensions;
248
249 for (j = 0; j < sk_X509_EXTENSION_num(exts); j++) {
250 ext = sk_X509_EXTENSION_value(exts, j);
251 if (ext->critical > 0) {
252 if (OBJ_obj2nid(ext->object) ==
253 NID_certificate_issuer)
254 continue;
255 crl->flags |= EXFLAG_CRITICAL;
256 break;
257 }
258 }
259 }
260
261 return 1;
262 }
263
264 /* The X509_CRL structure needs a bit of customisation. Cache some extensions
265 * and hash of the whole CRL.
266 */
267 static int
crl_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)268 crl_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
269 {
270 X509_CRL *crl = (X509_CRL *)*pval;
271 STACK_OF(X509_EXTENSION) *exts;
272 X509_EXTENSION *ext;
273 int idx;
274 int rc = 1;
275
276 switch (operation) {
277 case ASN1_OP_NEW_POST:
278 crl->idp = NULL;
279 crl->akid = NULL;
280 crl->flags = 0;
281 crl->idp_flags = 0;
282 crl->idp_reasons = CRLDP_ALL_REASONS;
283 crl->meth = default_crl_method;
284 crl->meth_data = NULL;
285 crl->issuers = NULL;
286 crl->crl_number = NULL;
287 crl->base_crl_number = NULL;
288 break;
289
290 case ASN1_OP_D2I_POST:
291 X509_CRL_digest(crl, X509_CRL_HASH_EVP, crl->hash, NULL);
292 crl->idp = X509_CRL_get_ext_d2i(crl,
293 NID_issuing_distribution_point, NULL, NULL);
294 if (crl->idp)
295 setup_idp(crl, crl->idp);
296
297 crl->akid = X509_CRL_get_ext_d2i(crl,
298 NID_authority_key_identifier, NULL, NULL);
299
300 crl->crl_number = X509_CRL_get_ext_d2i(crl,
301 NID_crl_number, NULL, NULL);
302
303 crl->base_crl_number = X509_CRL_get_ext_d2i(crl,
304 NID_delta_crl, NULL, NULL);
305 /* Delta CRLs must have CRL number */
306 if (crl->base_crl_number && !crl->crl_number)
307 crl->flags |= EXFLAG_INVALID;
308
309 /* See if we have any unhandled critical CRL extensions and
310 * indicate this in a flag. We only currently handle IDP,
311 * AKID and deltas, so anything else critical sets the flag.
312 *
313 * This code accesses the X509_CRL structure directly:
314 * applications shouldn't do this.
315 */
316
317 exts = crl->crl->extensions;
318
319 for (idx = 0; idx < sk_X509_EXTENSION_num(exts); idx++) {
320 int nid;
321 ext = sk_X509_EXTENSION_value(exts, idx);
322 nid = OBJ_obj2nid(ext->object);
323 if (nid == NID_freshest_crl)
324 crl->flags |= EXFLAG_FRESHEST;
325 if (ext->critical > 0) {
326 /* We handle IDP, AKID and deltas */
327 if (nid == NID_issuing_distribution_point ||
328 nid == NID_authority_key_identifier ||
329 nid == NID_delta_crl)
330 break;
331 crl->flags |= EXFLAG_CRITICAL;
332 break;
333 }
334 }
335
336 if (!crl_set_issuers(crl))
337 return 0;
338
339 if (crl->meth->crl_init) {
340 if (crl->meth->crl_init(crl) == 0)
341 return 0;
342 }
343 break;
344
345 case ASN1_OP_FREE_POST:
346 if (crl->meth->crl_free) {
347 if (!crl->meth->crl_free(crl))
348 rc = 0;
349 }
350 if (crl->akid)
351 AUTHORITY_KEYID_free(crl->akid);
352 if (crl->idp)
353 ISSUING_DIST_POINT_free(crl->idp);
354 ASN1_INTEGER_free(crl->crl_number);
355 ASN1_INTEGER_free(crl->base_crl_number);
356 sk_GENERAL_NAMES_pop_free(crl->issuers, GENERAL_NAMES_free);
357 break;
358 }
359 return rc;
360 }
361
362 /* Convert IDP into a more convenient form */
363
364 static void
setup_idp(X509_CRL * crl,ISSUING_DIST_POINT * idp)365 setup_idp(X509_CRL *crl, ISSUING_DIST_POINT *idp)
366 {
367 int idp_only = 0;
368
369 /* Set various flags according to IDP */
370 crl->idp_flags |= IDP_PRESENT;
371 if (idp->onlyuser > 0) {
372 idp_only++;
373 crl->idp_flags |= IDP_ONLYUSER;
374 }
375 if (idp->onlyCA > 0) {
376 idp_only++;
377 crl->idp_flags |= IDP_ONLYCA;
378 }
379 if (idp->onlyattr > 0) {
380 idp_only++;
381 crl->idp_flags |= IDP_ONLYATTR;
382 }
383
384 if (idp_only > 1)
385 crl->idp_flags |= IDP_INVALID;
386
387 if (idp->indirectCRL > 0)
388 crl->idp_flags |= IDP_INDIRECT;
389
390 if (idp->onlysomereasons) {
391 crl->idp_flags |= IDP_REASONS;
392 if (idp->onlysomereasons->length > 0)
393 crl->idp_reasons = idp->onlysomereasons->data[0];
394 if (idp->onlysomereasons->length > 1)
395 crl->idp_reasons |=
396 (idp->onlysomereasons->data[1] << 8);
397 crl->idp_reasons &= CRLDP_ALL_REASONS;
398 }
399
400 DIST_POINT_set_dpname(idp->distpoint, X509_CRL_get_issuer(crl));
401 }
402
403 static const ASN1_AUX X509_CRL_aux = {
404 .app_data = NULL,
405 .flags = ASN1_AFLG_REFCOUNT,
406 .ref_offset = offsetof(X509_CRL, references),
407 .ref_lock = CRYPTO_LOCK_X509_CRL,
408 .asn1_cb = crl_cb,
409 };
410 static const ASN1_TEMPLATE X509_CRL_seq_tt[] = {
411 {
412 .offset = offsetof(X509_CRL, crl),
413 .field_name = "crl",
414 .item = &X509_CRL_INFO_it,
415 },
416 {
417 .offset = offsetof(X509_CRL, sig_alg),
418 .field_name = "sig_alg",
419 .item = &X509_ALGOR_it,
420 },
421 {
422 .offset = offsetof(X509_CRL, signature),
423 .field_name = "signature",
424 .item = &ASN1_BIT_STRING_it,
425 },
426 };
427
428 const ASN1_ITEM X509_CRL_it = {
429 .itype = ASN1_ITYPE_SEQUENCE,
430 .utype = V_ASN1_SEQUENCE,
431 .templates = X509_CRL_seq_tt,
432 .tcount = sizeof(X509_CRL_seq_tt) / sizeof(ASN1_TEMPLATE),
433 .funcs = &X509_CRL_aux,
434 .size = sizeof(X509_CRL),
435 .sname = "X509_CRL",
436 };
437
438
439 X509_REVOKED *
d2i_X509_REVOKED(X509_REVOKED ** a,const unsigned char ** in,long len)440 d2i_X509_REVOKED(X509_REVOKED **a, const unsigned char **in, long len)
441 {
442 return (X509_REVOKED *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
443 &X509_REVOKED_it);
444 }
445
446 int
i2d_X509_REVOKED(X509_REVOKED * a,unsigned char ** out)447 i2d_X509_REVOKED(X509_REVOKED *a, unsigned char **out)
448 {
449 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_REVOKED_it);
450 }
451
452 X509_REVOKED *
X509_REVOKED_new(void)453 X509_REVOKED_new(void)
454 {
455 return (X509_REVOKED *)ASN1_item_new(&X509_REVOKED_it);
456 }
457
458 void
X509_REVOKED_free(X509_REVOKED * a)459 X509_REVOKED_free(X509_REVOKED *a)
460 {
461 ASN1_item_free((ASN1_VALUE *)a, &X509_REVOKED_it);
462 }
463
464 X509_REVOKED *
X509_REVOKED_dup(X509_REVOKED * a)465 X509_REVOKED_dup(X509_REVOKED *a)
466 {
467 return ASN1_item_dup(&X509_REVOKED_it, a);
468 }
469
470 X509_CRL_INFO *
d2i_X509_CRL_INFO(X509_CRL_INFO ** a,const unsigned char ** in,long len)471 d2i_X509_CRL_INFO(X509_CRL_INFO **a, const unsigned char **in, long len)
472 {
473 return (X509_CRL_INFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
474 &X509_CRL_INFO_it);
475 }
476
477 int
i2d_X509_CRL_INFO(X509_CRL_INFO * a,unsigned char ** out)478 i2d_X509_CRL_INFO(X509_CRL_INFO *a, unsigned char **out)
479 {
480 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CRL_INFO_it);
481 }
482
483 X509_CRL_INFO *
X509_CRL_INFO_new(void)484 X509_CRL_INFO_new(void)
485 {
486 return (X509_CRL_INFO *)ASN1_item_new(&X509_CRL_INFO_it);
487 }
488
489 void
X509_CRL_INFO_free(X509_CRL_INFO * a)490 X509_CRL_INFO_free(X509_CRL_INFO *a)
491 {
492 ASN1_item_free((ASN1_VALUE *)a, &X509_CRL_INFO_it);
493 }
494
495 X509_CRL *
d2i_X509_CRL(X509_CRL ** a,const unsigned char ** in,long len)496 d2i_X509_CRL(X509_CRL **a, const unsigned char **in, long len)
497 {
498 return (X509_CRL *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
499 &X509_CRL_it);
500 }
501
502 int
i2d_X509_CRL(X509_CRL * a,unsigned char ** out)503 i2d_X509_CRL(X509_CRL *a, unsigned char **out)
504 {
505 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CRL_it);
506 }
507
508 X509_CRL *
X509_CRL_new(void)509 X509_CRL_new(void)
510 {
511 return (X509_CRL *)ASN1_item_new(&X509_CRL_it);
512 }
513
514 void
X509_CRL_free(X509_CRL * a)515 X509_CRL_free(X509_CRL *a)
516 {
517 ASN1_item_free((ASN1_VALUE *)a, &X509_CRL_it);
518 }
519
520 X509_CRL *
X509_CRL_dup(X509_CRL * x)521 X509_CRL_dup(X509_CRL *x)
522 {
523 return ASN1_item_dup(&X509_CRL_it, x);
524 }
525
526 static int
X509_REVOKED_cmp(const X509_REVOKED * const * a,const X509_REVOKED * const * b)527 X509_REVOKED_cmp(const X509_REVOKED * const *a, const X509_REVOKED * const *b)
528 {
529 return(ASN1_INTEGER_cmp((*a)->serialNumber, (*b)->serialNumber));
530 }
531
532 int
X509_CRL_add0_revoked(X509_CRL * crl,X509_REVOKED * rev)533 X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev)
534 {
535 X509_CRL_INFO *inf;
536
537 inf = crl->crl;
538 if (!inf->revoked)
539 inf->revoked = sk_X509_REVOKED_new(X509_REVOKED_cmp);
540 if (!inf->revoked || !sk_X509_REVOKED_push(inf->revoked, rev)) {
541 ASN1error(ERR_R_MALLOC_FAILURE);
542 return 0;
543 }
544 inf->enc.modified = 1;
545 return 1;
546 }
547
548 int
X509_CRL_verify(X509_CRL * crl,EVP_PKEY * r)549 X509_CRL_verify(X509_CRL *crl, EVP_PKEY *r)
550 {
551 if (crl->meth->crl_verify)
552 return crl->meth->crl_verify(crl, r);
553 return 0;
554 }
555
556 int
X509_CRL_get0_by_serial(X509_CRL * crl,X509_REVOKED ** ret,ASN1_INTEGER * serial)557 X509_CRL_get0_by_serial(X509_CRL *crl, X509_REVOKED **ret,
558 ASN1_INTEGER *serial)
559 {
560 if (crl->meth->crl_lookup)
561 return crl->meth->crl_lookup(crl, ret, serial, NULL);
562 return 0;
563 }
564
565 int
X509_CRL_get0_by_cert(X509_CRL * crl,X509_REVOKED ** ret,X509 * x)566 X509_CRL_get0_by_cert(X509_CRL *crl, X509_REVOKED **ret, X509 *x)
567 {
568 if (crl->meth->crl_lookup)
569 return crl->meth->crl_lookup(crl, ret,
570 X509_get_serialNumber(x), X509_get_issuer_name(x));
571 return 0;
572 }
573
574 static int
def_crl_verify(X509_CRL * crl,EVP_PKEY * r)575 def_crl_verify(X509_CRL *crl, EVP_PKEY *r)
576 {
577 return(ASN1_item_verify(&X509_CRL_INFO_it,
578 crl->sig_alg, crl->signature, crl->crl, r));
579 }
580
581 static int
crl_revoked_issuer_match(X509_CRL * crl,X509_NAME * nm,X509_REVOKED * rev)582 crl_revoked_issuer_match(X509_CRL *crl, X509_NAME *nm, X509_REVOKED *rev)
583 {
584 int i;
585
586 if (!rev->issuer) {
587 if (!nm)
588 return 1;
589 if (!X509_NAME_cmp(nm, X509_CRL_get_issuer(crl)))
590 return 1;
591 return 0;
592 }
593
594 if (!nm)
595 nm = X509_CRL_get_issuer(crl);
596
597 for (i = 0; i < sk_GENERAL_NAME_num(rev->issuer); i++) {
598 GENERAL_NAME *gen = sk_GENERAL_NAME_value(rev->issuer, i);
599 if (gen->type != GEN_DIRNAME)
600 continue;
601 if (!X509_NAME_cmp(nm, gen->d.directoryName))
602 return 1;
603 }
604 return 0;
605
606 }
607
608 static int
def_crl_lookup(X509_CRL * crl,X509_REVOKED ** ret,ASN1_INTEGER * serial,X509_NAME * issuer)609 def_crl_lookup(X509_CRL *crl, X509_REVOKED **ret, ASN1_INTEGER *serial,
610 X509_NAME *issuer)
611 {
612 X509_REVOKED rtmp, *rev;
613 int idx;
614
615 rtmp.serialNumber = serial;
616 /* Sort revoked into serial number order if not already sorted.
617 * Do this under a lock to avoid race condition.
618 */
619 if (!sk_X509_REVOKED_is_sorted(crl->crl->revoked)) {
620 CRYPTO_w_lock(CRYPTO_LOCK_X509_CRL);
621 sk_X509_REVOKED_sort(crl->crl->revoked);
622 CRYPTO_w_unlock(CRYPTO_LOCK_X509_CRL);
623 }
624 idx = sk_X509_REVOKED_find(crl->crl->revoked, &rtmp);
625 if (idx < 0)
626 return 0;
627 /* Need to look for matching name */
628 for (; idx < sk_X509_REVOKED_num(crl->crl->revoked); idx++) {
629 rev = sk_X509_REVOKED_value(crl->crl->revoked, idx);
630 if (ASN1_INTEGER_cmp(rev->serialNumber, serial))
631 return 0;
632 if (crl_revoked_issuer_match(crl, issuer, rev)) {
633 if (ret)
634 *ret = rev;
635 if (rev->reason == CRL_REASON_REMOVE_FROM_CRL)
636 return 2;
637 return 1;
638 }
639 }
640 return 0;
641 }
642
643 void
X509_CRL_set_default_method(const X509_CRL_METHOD * meth)644 X509_CRL_set_default_method(const X509_CRL_METHOD *meth)
645 {
646 if (meth == NULL)
647 default_crl_method = &int_crl_meth;
648 else
649 default_crl_method = meth;
650 }
651
652 X509_CRL_METHOD *
X509_CRL_METHOD_new(int (* crl_init)(X509_CRL * crl),int (* crl_free)(X509_CRL * crl),int (* crl_lookup)(X509_CRL * crl,X509_REVOKED ** ret,ASN1_INTEGER * ser,X509_NAME * issuer),int (* crl_verify)(X509_CRL * crl,EVP_PKEY * pk))653 X509_CRL_METHOD_new(int (*crl_init)(X509_CRL *crl),
654 int (*crl_free)(X509_CRL *crl),
655 int (*crl_lookup)(X509_CRL *crl, X509_REVOKED **ret,
656 ASN1_INTEGER *ser, X509_NAME *issuer),
657 int (*crl_verify)(X509_CRL *crl, EVP_PKEY *pk))
658 {
659 X509_CRL_METHOD *m;
660
661 if ((m = calloc(1, sizeof(X509_CRL_METHOD))) == NULL)
662 return NULL;
663
664 m->crl_init = crl_init;
665 m->crl_free = crl_free;
666 m->crl_lookup = crl_lookup;
667 m->crl_verify = crl_verify;
668 m->flags = X509_CRL_METHOD_DYNAMIC;
669
670 return m;
671 }
672
673 void
X509_CRL_METHOD_free(X509_CRL_METHOD * m)674 X509_CRL_METHOD_free(X509_CRL_METHOD *m)
675 {
676 if (m == NULL)
677 return;
678 if (!(m->flags & X509_CRL_METHOD_DYNAMIC))
679 return;
680 free(m);
681 }
682
683 void
X509_CRL_set_meth_data(X509_CRL * crl,void * dat)684 X509_CRL_set_meth_data(X509_CRL *crl, void *dat)
685 {
686 crl->meth_data = dat;
687 }
688
689 void *
X509_CRL_get_meth_data(X509_CRL * crl)690 X509_CRL_get_meth_data(X509_CRL *crl)
691 {
692 return crl->meth_data;
693 }
694
695 int
X509_CRL_get_signature_nid(const X509_CRL * crl)696 X509_CRL_get_signature_nid(const X509_CRL *crl)
697 {
698 return OBJ_obj2nid(crl->sig_alg->algorithm);
699 }
700
STACK_OF(X509_EXTENSION)701 const STACK_OF(X509_EXTENSION) *
702 X509_CRL_get0_extensions(const X509_CRL *crl)
703 {
704 return crl->crl->extensions;
705 }
706
707 long
X509_CRL_get_version(const X509_CRL * crl)708 X509_CRL_get_version(const X509_CRL *crl)
709 {
710 return ASN1_INTEGER_get(crl->crl->version);
711 }
712
713 const ASN1_TIME *
X509_CRL_get0_lastUpdate(const X509_CRL * crl)714 X509_CRL_get0_lastUpdate(const X509_CRL *crl)
715 {
716 return crl->crl->lastUpdate;
717 }
718
719 ASN1_TIME *
X509_CRL_get_lastUpdate(X509_CRL * crl)720 X509_CRL_get_lastUpdate(X509_CRL *crl)
721 {
722 return crl->crl->lastUpdate;
723 }
724
725 const ASN1_TIME *
X509_CRL_get0_nextUpdate(const X509_CRL * crl)726 X509_CRL_get0_nextUpdate(const X509_CRL *crl)
727 {
728 return crl->crl->nextUpdate;
729 }
730
731 ASN1_TIME *
X509_CRL_get_nextUpdate(X509_CRL * crl)732 X509_CRL_get_nextUpdate(X509_CRL *crl)
733 {
734 return crl->crl->nextUpdate;
735 }
736
737 X509_NAME *
X509_CRL_get_issuer(const X509_CRL * crl)738 X509_CRL_get_issuer(const X509_CRL *crl)
739 {
740 return crl->crl->issuer;
741 }
742
STACK_OF(X509_REVOKED)743 STACK_OF(X509_REVOKED) *
744 X509_CRL_get_REVOKED(X509_CRL *crl)
745 {
746 return crl->crl->revoked;
747 }
748
749 void
X509_CRL_get0_signature(const X509_CRL * crl,const ASN1_BIT_STRING ** psig,const X509_ALGOR ** palg)750 X509_CRL_get0_signature(const X509_CRL *crl, const ASN1_BIT_STRING **psig,
751 const X509_ALGOR **palg)
752 {
753 if (psig != NULL)
754 *psig = crl->signature;
755 if (palg != NULL)
756 *palg = crl->sig_alg;
757 }
758