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 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 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 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 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 * 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 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 * 453 X509_REVOKED_new(void) 454 { 455 return (X509_REVOKED *)ASN1_item_new(&X509_REVOKED_it); 456 } 457 458 void 459 X509_REVOKED_free(X509_REVOKED *a) 460 { 461 ASN1_item_free((ASN1_VALUE *)a, &X509_REVOKED_it); 462 } 463 464 X509_REVOKED * 465 X509_REVOKED_dup(X509_REVOKED *a) 466 { 467 return ASN1_item_dup(&X509_REVOKED_it, a); 468 } 469 470 X509_CRL_INFO * 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 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 * 484 X509_CRL_INFO_new(void) 485 { 486 return (X509_CRL_INFO *)ASN1_item_new(&X509_CRL_INFO_it); 487 } 488 489 void 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 * 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 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 * 509 X509_CRL_new(void) 510 { 511 return (X509_CRL *)ASN1_item_new(&X509_CRL_it); 512 } 513 514 void 515 X509_CRL_free(X509_CRL *a) 516 { 517 ASN1_item_free((ASN1_VALUE *)a, &X509_CRL_it); 518 } 519 520 X509_CRL * 521 X509_CRL_dup(X509_CRL *x) 522 { 523 return ASN1_item_dup(&X509_CRL_it, x); 524 } 525 526 static int 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 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 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 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 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 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 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 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 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 * 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 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 684 X509_CRL_set_meth_data(X509_CRL *crl, void *dat) 685 { 686 crl->meth_data = dat; 687 } 688 689 void * 690 X509_CRL_get_meth_data(X509_CRL *crl) 691 { 692 return crl->meth_data; 693 } 694 695 int 696 X509_CRL_get_signature_nid(const X509_CRL *crl) 697 { 698 return OBJ_obj2nid(crl->sig_alg->algorithm); 699 } 700 701 const STACK_OF(X509_EXTENSION) * 702 X509_CRL_get0_extensions(const X509_CRL *crl) 703 { 704 return crl->crl->extensions; 705 } 706 707 long 708 X509_CRL_get_version(const X509_CRL *crl) 709 { 710 return ASN1_INTEGER_get(crl->crl->version); 711 } 712 713 const ASN1_TIME * 714 X509_CRL_get0_lastUpdate(const X509_CRL *crl) 715 { 716 return crl->crl->lastUpdate; 717 } 718 719 ASN1_TIME * 720 X509_CRL_get_lastUpdate(X509_CRL *crl) 721 { 722 return crl->crl->lastUpdate; 723 } 724 725 const ASN1_TIME * 726 X509_CRL_get0_nextUpdate(const X509_CRL *crl) 727 { 728 return crl->crl->nextUpdate; 729 } 730 731 ASN1_TIME * 732 X509_CRL_get_nextUpdate(X509_CRL *crl) 733 { 734 return crl->crl->nextUpdate; 735 } 736 737 X509_NAME * 738 X509_CRL_get_issuer(const X509_CRL *crl) 739 { 740 return crl->crl->issuer; 741 } 742 743 STACK_OF(X509_REVOKED) * 744 X509_CRL_get_REVOKED(X509_CRL *crl) 745 { 746 return crl->crl->revoked; 747 } 748 749 void 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