1/* ocsp.c */ 2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL 3 * project 2000. 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#ifndef OPENSSL_NO_OCSP 59 60#include <stdio.h> 61#include <string.h> 62#include "apps.h" 63#include <openssl/pem.h> 64#include <openssl/ocsp.h> 65#include <openssl/err.h> 66#include <openssl/ssl.h> 67 68/* Maximum leeway in validity period: default 5 minutes */ 69#define MAX_VALIDITY_PERIOD (5 * 60) 70 71static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 72 STACK_OF(OCSP_CERTID) *ids); 73static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 74 STACK_OF(OCSP_CERTID) *ids); 75static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 76 STACK *names, STACK_OF(OCSP_CERTID) *ids, 77 long nsec, long maxage); 78 79static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db, 80 X509 *ca, X509 *rcert, EVP_PKEY *rkey, 81 STACK_OF(X509) *rother, unsigned long flags, 82 int nmin, int ndays); 83 84static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); 85static BIO *init_responder(char *port); 86static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port); 87static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); 88 89#undef PROG 90#define PROG ocsp_main 91 92int MAIN(int, char **); 93 94int MAIN(int argc, char **argv) 95 { 96 ENGINE *e = NULL; 97 char **args; 98 char *host = NULL, *port = NULL, *path = "/"; 99 char *reqin = NULL, *respin = NULL; 100 char *reqout = NULL, *respout = NULL; 101 char *signfile = NULL, *keyfile = NULL; 102 char *rsignfile = NULL, *rkeyfile = NULL; 103 char *outfile = NULL; 104 int add_nonce = 1, noverify = 0, use_ssl = -1; 105 OCSP_REQUEST *req = NULL; 106 OCSP_RESPONSE *resp = NULL; 107 OCSP_BASICRESP *bs = NULL; 108 X509 *issuer = NULL, *cert = NULL; 109 X509 *signer = NULL, *rsigner = NULL; 110 EVP_PKEY *key = NULL, *rkey = NULL; 111 BIO *acbio = NULL, *cbio = NULL; 112 BIO *derbio = NULL; 113 BIO *out = NULL; 114 int req_text = 0, resp_text = 0; 115 long nsec = MAX_VALIDITY_PERIOD, maxage = -1; 116 char *CAfile = NULL, *CApath = NULL; 117 X509_STORE *store = NULL; 118 SSL_CTX *ctx = NULL; 119 STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; 120 char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; 121 unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; 122 int ret = 1; 123 int accept_count = -1; 124 int badarg = 0; 125 int i; 126 int ignore_err = 0; 127 STACK *reqnames = NULL; 128 STACK_OF(OCSP_CERTID) *ids = NULL; 129 130 X509 *rca_cert = NULL; 131 char *ridx_filename = NULL; 132 char *rca_filename = NULL; 133 CA_DB *rdb = NULL; 134 int nmin = 0, ndays = -1; 135 136 if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 137 138 if (!load_config(bio_err, NULL)) 139 goto end; 140 SSL_load_error_strings(); 141 args = argv + 1; 142 reqnames = sk_new_null(); 143 ids = sk_OCSP_CERTID_new_null(); 144 while (!badarg && *args && *args[0] == '-') 145 { 146 if (!strcmp(*args, "-out")) 147 { 148 if (args[1]) 149 { 150 args++; 151 outfile = *args; 152 } 153 else badarg = 1; 154 } 155 else if (!strcmp(*args, "-url")) 156 { 157 if (args[1]) 158 { 159 args++; 160 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl)) 161 { 162 BIO_printf(bio_err, "Error parsing URL\n"); 163 badarg = 1; 164 } 165 } 166 else badarg = 1; 167 } 168 else if (!strcmp(*args, "-host")) 169 { 170 if (args[1]) 171 { 172 args++; 173 host = *args; 174 } 175 else badarg = 1; 176 } 177 else if (!strcmp(*args, "-port")) 178 { 179 if (args[1]) 180 { 181 args++; 182 port = *args; 183 } 184 else badarg = 1; 185 } 186 else if (!strcmp(*args, "-ignore_err")) 187 ignore_err = 1; 188 else if (!strcmp(*args, "-noverify")) 189 noverify = 1; 190 else if (!strcmp(*args, "-nonce")) 191 add_nonce = 2; 192 else if (!strcmp(*args, "-no_nonce")) 193 add_nonce = 0; 194 else if (!strcmp(*args, "-resp_no_certs")) 195 rflags |= OCSP_NOCERTS; 196 else if (!strcmp(*args, "-resp_key_id")) 197 rflags |= OCSP_RESPID_KEY; 198 else if (!strcmp(*args, "-no_certs")) 199 sign_flags |= OCSP_NOCERTS; 200 else if (!strcmp(*args, "-no_signature_verify")) 201 verify_flags |= OCSP_NOSIGS; 202 else if (!strcmp(*args, "-no_cert_verify")) 203 verify_flags |= OCSP_NOVERIFY; 204 else if (!strcmp(*args, "-no_chain")) 205 verify_flags |= OCSP_NOCHAIN; 206 else if (!strcmp(*args, "-no_cert_checks")) 207 verify_flags |= OCSP_NOCHECKS; 208 else if (!strcmp(*args, "-no_explicit")) 209 verify_flags |= OCSP_NOEXPLICIT; 210 else if (!strcmp(*args, "-trust_other")) 211 verify_flags |= OCSP_TRUSTOTHER; 212 else if (!strcmp(*args, "-no_intern")) 213 verify_flags |= OCSP_NOINTERN; 214 else if (!strcmp(*args, "-text")) 215 { 216 req_text = 1; 217 resp_text = 1; 218 } 219 else if (!strcmp(*args, "-req_text")) 220 req_text = 1; 221 else if (!strcmp(*args, "-resp_text")) 222 resp_text = 1; 223 else if (!strcmp(*args, "-reqin")) 224 { 225 if (args[1]) 226 { 227 args++; 228 reqin = *args; 229 } 230 else badarg = 1; 231 } 232 else if (!strcmp(*args, "-respin")) 233 { 234 if (args[1]) 235 { 236 args++; 237 respin = *args; 238 } 239 else badarg = 1; 240 } 241 else if (!strcmp(*args, "-signer")) 242 { 243 if (args[1]) 244 { 245 args++; 246 signfile = *args; 247 } 248 else badarg = 1; 249 } 250 else if (!strcmp (*args, "-VAfile")) 251 { 252 if (args[1]) 253 { 254 args++; 255 verify_certfile = *args; 256 verify_flags |= OCSP_TRUSTOTHER; 257 } 258 else badarg = 1; 259 } 260 else if (!strcmp(*args, "-sign_other")) 261 { 262 if (args[1]) 263 { 264 args++; 265 sign_certfile = *args; 266 } 267 else badarg = 1; 268 } 269 else if (!strcmp(*args, "-verify_other")) 270 { 271 if (args[1]) 272 { 273 args++; 274 verify_certfile = *args; 275 } 276 else badarg = 1; 277 } 278 else if (!strcmp (*args, "-CAfile")) 279 { 280 if (args[1]) 281 { 282 args++; 283 CAfile = *args; 284 } 285 else badarg = 1; 286 } 287 else if (!strcmp (*args, "-CApath")) 288 { 289 if (args[1]) 290 { 291 args++; 292 CApath = *args; 293 } 294 else badarg = 1; 295 } 296 else if (!strcmp (*args, "-validity_period")) 297 { 298 if (args[1]) 299 { 300 args++; 301 nsec = atol(*args); 302 if (nsec < 0) 303 { 304 BIO_printf(bio_err, 305 "Illegal validity period %s\n", 306 *args); 307 badarg = 1; 308 } 309 } 310 else badarg = 1; 311 } 312 else if (!strcmp (*args, "-status_age")) 313 { 314 if (args[1]) 315 { 316 args++; 317 maxage = atol(*args); 318 if (maxage < 0) 319 { 320 BIO_printf(bio_err, 321 "Illegal validity age %s\n", 322 *args); 323 badarg = 1; 324 } 325 } 326 else badarg = 1; 327 } 328 else if (!strcmp(*args, "-signkey")) 329 { 330 if (args[1]) 331 { 332 args++; 333 keyfile = *args; 334 } 335 else badarg = 1; 336 } 337 else if (!strcmp(*args, "-reqout")) 338 { 339 if (args[1]) 340 { 341 args++; 342 reqout = *args; 343 } 344 else badarg = 1; 345 } 346 else if (!strcmp(*args, "-respout")) 347 { 348 if (args[1]) 349 { 350 args++; 351 respout = *args; 352 } 353 else badarg = 1; 354 } 355 else if (!strcmp(*args, "-path")) 356 { 357 if (args[1]) 358 { 359 args++; 360 path = *args; 361 } 362 else badarg = 1; 363 } 364 else if (!strcmp(*args, "-issuer")) 365 { 366 if (args[1]) 367 { 368 args++; 369 X509_free(issuer); 370 issuer = load_cert(bio_err, *args, FORMAT_PEM, 371 NULL, e, "issuer certificate"); 372 if(!issuer) goto end; 373 } 374 else badarg = 1; 375 } 376 else if (!strcmp (*args, "-cert")) 377 { 378 if (args[1]) 379 { 380 args++; 381 X509_free(cert); 382 cert = load_cert(bio_err, *args, FORMAT_PEM, 383 NULL, e, "certificate"); 384 if(!cert) goto end; 385 if(!add_ocsp_cert(&req, cert, issuer, ids)) 386 goto end; 387 if(!sk_push(reqnames, *args)) 388 goto end; 389 } 390 else badarg = 1; 391 } 392 else if (!strcmp(*args, "-serial")) 393 { 394 if (args[1]) 395 { 396 args++; 397 if(!add_ocsp_serial(&req, *args, issuer, ids)) 398 goto end; 399 if(!sk_push(reqnames, *args)) 400 goto end; 401 } 402 else badarg = 1; 403 } 404 else if (!strcmp(*args, "-index")) 405 { 406 if (args[1]) 407 { 408 args++; 409 ridx_filename = *args; 410 } 411 else badarg = 1; 412 } 413 else if (!strcmp(*args, "-CA")) 414 { 415 if (args[1]) 416 { 417 args++; 418 rca_filename = *args; 419 } 420 else badarg = 1; 421 } 422 else if (!strcmp (*args, "-nmin")) 423 { 424 if (args[1]) 425 { 426 args++; 427 nmin = atol(*args); 428 if (nmin < 0) 429 { 430 BIO_printf(bio_err, 431 "Illegal update period %s\n", 432 *args); 433 badarg = 1; 434 } 435 } 436 if (ndays == -1) 437 ndays = 0; 438 else badarg = 1; 439 } 440 else if (!strcmp (*args, "-nrequest")) 441 { 442 if (args[1]) 443 { 444 args++; 445 accept_count = atol(*args); 446 if (accept_count < 0) 447 { 448 BIO_printf(bio_err, 449 "Illegal accept count %s\n", 450 *args); 451 badarg = 1; 452 } 453 } 454 else badarg = 1; 455 } 456 else if (!strcmp (*args, "-ndays")) 457 { 458 if (args[1]) 459 { 460 args++; 461 ndays = atol(*args); 462 if (ndays < 0) 463 { 464 BIO_printf(bio_err, 465 "Illegal update period %s\n", 466 *args); 467 badarg = 1; 468 } 469 } 470 else badarg = 1; 471 } 472 else if (!strcmp(*args, "-rsigner")) 473 { 474 if (args[1]) 475 { 476 args++; 477 rsignfile = *args; 478 } 479 else badarg = 1; 480 } 481 else if (!strcmp(*args, "-rkey")) 482 { 483 if (args[1]) 484 { 485 args++; 486 rkeyfile = *args; 487 } 488 else badarg = 1; 489 } 490 else if (!strcmp(*args, "-rother")) 491 { 492 if (args[1]) 493 { 494 args++; 495 rcertfile = *args; 496 } 497 else badarg = 1; 498 } 499 else badarg = 1; 500 args++; 501 } 502 503 /* Have we anything to do? */ 504 if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1; 505 506 if (badarg) 507 { 508 BIO_printf (bio_err, "OCSP utility\n"); 509 BIO_printf (bio_err, "Usage ocsp [options]\n"); 510 BIO_printf (bio_err, "where options are\n"); 511 BIO_printf (bio_err, "-out file output filename\n"); 512 BIO_printf (bio_err, "-issuer file issuer certificate\n"); 513 BIO_printf (bio_err, "-cert file certificate to check\n"); 514 BIO_printf (bio_err, "-serial n serial number to check\n"); 515 BIO_printf (bio_err, "-signer file certificate to sign OCSP request with\n"); 516 BIO_printf (bio_err, "-signkey file private key to sign OCSP request with\n"); 517 BIO_printf (bio_err, "-sign_other file additional certificates to include in signed request\n"); 518 BIO_printf (bio_err, "-no_certs don't include any certificates in signed request\n"); 519 BIO_printf (bio_err, "-req_text print text form of request\n"); 520 BIO_printf (bio_err, "-resp_text print text form of response\n"); 521 BIO_printf (bio_err, "-text print text form of request and response\n"); 522 BIO_printf (bio_err, "-reqout file write DER encoded OCSP request to \"file\"\n"); 523 BIO_printf (bio_err, "-respout file write DER encoded OCSP reponse to \"file\"\n"); 524 BIO_printf (bio_err, "-reqin file read DER encoded OCSP request from \"file\"\n"); 525 BIO_printf (bio_err, "-respin file read DER encoded OCSP reponse from \"file\"\n"); 526 BIO_printf (bio_err, "-nonce add OCSP nonce to request\n"); 527 BIO_printf (bio_err, "-no_nonce don't add OCSP nonce to request\n"); 528 BIO_printf (bio_err, "-url URL OCSP responder URL\n"); 529 BIO_printf (bio_err, "-host host:n send OCSP request to host on port n\n"); 530 BIO_printf (bio_err, "-path path to use in OCSP request\n"); 531 BIO_printf (bio_err, "-CApath dir trusted certificates directory\n"); 532 BIO_printf (bio_err, "-CAfile file trusted certificates file\n"); 533 BIO_printf (bio_err, "-VAfile file validator certificates file\n"); 534 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n"); 535 BIO_printf (bio_err, "-status_age n maximum status age in seconds\n"); 536 BIO_printf (bio_err, "-noverify don't verify response at all\n"); 537 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n"); 538 BIO_printf (bio_err, "-trust_other don't verify additional certificates\n"); 539 BIO_printf (bio_err, "-no_intern don't search certificates contained in response for signer\n"); 540 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n"); 541 BIO_printf (bio_err, "-no_cert_verify don't check signing certificate\n"); 542 BIO_printf (bio_err, "-no_chain don't chain verify response\n"); 543 BIO_printf (bio_err, "-no_cert_checks don't do additional checks on signing certificate\n"); 544 BIO_printf (bio_err, "-port num port to run responder on\n"); 545 BIO_printf (bio_err, "-index file certificate status index file\n"); 546 BIO_printf (bio_err, "-CA file CA certificate\n"); 547 BIO_printf (bio_err, "-rsigner file responder certificate to sign responses with\n"); 548 BIO_printf (bio_err, "-rkey file responder key to sign responses with\n"); 549 BIO_printf (bio_err, "-rother file other certificates to include in response\n"); 550 BIO_printf (bio_err, "-resp_no_certs don't include any certificates in response\n"); 551 BIO_printf (bio_err, "-nmin n number of minutes before next update\n"); 552 BIO_printf (bio_err, "-ndays n number of days before next update\n"); 553 BIO_printf (bio_err, "-resp_key_id identify reponse by signing certificate key ID\n"); 554 BIO_printf (bio_err, "-nrequest n number of requests to accept (default unlimited)\n"); 555 goto end; 556 } 557 558 if(outfile) out = BIO_new_file(outfile, "w"); 559 else out = BIO_new_fp(stdout, BIO_NOCLOSE); 560 561 if(!out) 562 { 563 BIO_printf(bio_err, "Error opening output file\n"); 564 goto end; 565 } 566 567 if (!req && (add_nonce != 2)) add_nonce = 0; 568 569 if (!req && reqin) 570 { 571 derbio = BIO_new_file(reqin, "rb"); 572 if (!derbio) 573 { 574 BIO_printf(bio_err, "Error Opening OCSP request file\n"); 575 goto end; 576 } 577 req = d2i_OCSP_REQUEST_bio(derbio, NULL); 578 BIO_free(derbio); 579 if(!req) 580 { 581 BIO_printf(bio_err, "Error reading OCSP request\n"); 582 goto end; 583 } 584 } 585 586 if (!req && port) 587 { 588 acbio = init_responder(port); 589 if (!acbio) 590 goto end; 591 } 592 593 if (rsignfile && !rdb) 594 { 595 if (!rkeyfile) rkeyfile = rsignfile; 596 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM, 597 NULL, e, "responder certificate"); 598 if (!rsigner) 599 { 600 BIO_printf(bio_err, "Error loading responder certificate\n"); 601 goto end; 602 } 603 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM, 604 NULL, e, "CA certificate"); 605 if (rcertfile) 606 { 607 rother = load_certs(bio_err, rcertfile, FORMAT_PEM, 608 NULL, e, "responder other certificates"); 609 if (!rother) goto end; 610 } 611 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL, 612 "responder private key"); 613 if (!rkey) 614 goto end; 615 } 616 if(acbio) 617 BIO_printf(bio_err, "Waiting for OCSP client connections...\n"); 618 619 redo_accept: 620 621 if (acbio) 622 { 623 if (!do_responder(&req, &cbio, acbio, port)) 624 goto end; 625 if (!req) 626 { 627 resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); 628 send_ocsp_response(cbio, resp); 629 goto done_resp; 630 } 631 } 632 633 if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) 634 { 635 BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); 636 goto end; 637 } 638 639 if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1); 640 641 if (signfile) 642 { 643 if (!keyfile) keyfile = signfile; 644 signer = load_cert(bio_err, signfile, FORMAT_PEM, 645 NULL, e, "signer certificate"); 646 if (!signer) 647 { 648 BIO_printf(bio_err, "Error loading signer certificate\n"); 649 goto end; 650 } 651 if (sign_certfile) 652 { 653 sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM, 654 NULL, e, "signer certificates"); 655 if (!sign_other) goto end; 656 } 657 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL, 658 "signer private key"); 659 if (!key) 660 goto end; 661 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags)) 662 { 663 BIO_printf(bio_err, "Error signing OCSP request\n"); 664 goto end; 665 } 666 } 667 668 if (req_text && req) OCSP_REQUEST_print(out, req, 0); 669 670 if (reqout) 671 { 672 derbio = BIO_new_file(reqout, "wb"); 673 if(!derbio) 674 { 675 BIO_printf(bio_err, "Error opening file %s\n", reqout); 676 goto end; 677 } 678 i2d_OCSP_REQUEST_bio(derbio, req); 679 BIO_free(derbio); 680 } 681 682 if (ridx_filename && (!rkey || !rsigner || !rca_cert)) 683 { 684 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n"); 685 goto end; 686 } 687 688 if (ridx_filename && !rdb) 689 { 690 rdb = load_index(ridx_filename, NULL); 691 if (!rdb) goto end; 692 if (!index_index(rdb)) goto end; 693 } 694 695 if (rdb) 696 { 697 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays); 698 if (cbio) 699 send_ocsp_response(cbio, resp); 700 } 701 else if (host) 702 { 703#ifndef OPENSSL_NO_SOCK 704 cbio = BIO_new_connect(host); 705#else 706 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n"); 707 goto end; 708#endif 709 if (!cbio) 710 { 711 BIO_printf(bio_err, "Error creating connect BIO\n"); 712 goto end; 713 } 714 if (port) BIO_set_conn_port(cbio, port); 715 if (use_ssl == 1) 716 { 717 BIO *sbio; 718#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 719 ctx = SSL_CTX_new(SSLv23_client_method()); 720#elif !defined(OPENSSL_NO_SSL3) 721 ctx = SSL_CTX_new(SSLv3_client_method()); 722#elif !defined(OPENSSL_NO_SSL2) 723 ctx = SSL_CTX_new(SSLv2_client_method()); 724#else 725 BIO_printf(bio_err, "SSL is disabled\n"); 726 goto end; 727#endif 728 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); 729 sbio = BIO_new_ssl(ctx, 1); 730 cbio = BIO_push(sbio, cbio); 731 } 732 if (BIO_do_connect(cbio) <= 0) 733 { 734 BIO_printf(bio_err, "Error connecting BIO\n"); 735 goto end; 736 } 737 resp = OCSP_sendreq_bio(cbio, path, req); 738 BIO_free_all(cbio); 739 cbio = NULL; 740 if (!resp) 741 { 742 BIO_printf(bio_err, "Error querying OCSP responsder\n"); 743 goto end; 744 } 745 } 746 else if (respin) 747 { 748 derbio = BIO_new_file(respin, "rb"); 749 if (!derbio) 750 { 751 BIO_printf(bio_err, "Error Opening OCSP response file\n"); 752 goto end; 753 } 754 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 755 BIO_free(derbio); 756 if(!resp) 757 { 758 BIO_printf(bio_err, "Error reading OCSP response\n"); 759 goto end; 760 } 761 762 } 763 else 764 { 765 ret = 0; 766 goto end; 767 } 768 769 done_resp: 770 771 if (respout) 772 { 773 derbio = BIO_new_file(respout, "wb"); 774 if(!derbio) 775 { 776 BIO_printf(bio_err, "Error opening file %s\n", respout); 777 goto end; 778 } 779 i2d_OCSP_RESPONSE_bio(derbio, resp); 780 BIO_free(derbio); 781 } 782 783 i = OCSP_response_status(resp); 784 785 if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) 786 { 787 BIO_printf(out, "Responder Error: %s (%ld)\n", 788 OCSP_response_status_str(i), i); 789 if (ignore_err) 790 goto redo_accept; 791 ret = 0; 792 goto end; 793 } 794 795 if (resp_text) OCSP_RESPONSE_print(out, resp, 0); 796 797 /* If running as responder don't verify our own response */ 798 if (cbio) 799 { 800 if (accept_count > 0) 801 accept_count--; 802 /* Redo if more connections needed */ 803 if (accept_count) 804 { 805 BIO_free_all(cbio); 806 cbio = NULL; 807 OCSP_REQUEST_free(req); 808 req = NULL; 809 OCSP_RESPONSE_free(resp); 810 resp = NULL; 811 goto redo_accept; 812 } 813 goto end; 814 } 815 816 if (!store) 817 store = setup_verify(bio_err, CAfile, CApath); 818 if (!store) 819 goto end; 820 if (verify_certfile) 821 { 822 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM, 823 NULL, e, "validator certificate"); 824 if (!verify_other) goto end; 825 } 826 827 bs = OCSP_response_get1_basic(resp); 828 829 if (!bs) 830 { 831 BIO_printf(bio_err, "Error parsing response\n"); 832 goto end; 833 } 834 835 if (!noverify) 836 { 837 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) 838 { 839 if (i == -1) 840 BIO_printf(bio_err, "WARNING: no nonce in response\n"); 841 else 842 { 843 BIO_printf(bio_err, "Nonce Verify error\n"); 844 goto end; 845 } 846 } 847 848 i = OCSP_basic_verify(bs, verify_other, store, verify_flags); 849 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0); 850 851 if(i <= 0) 852 { 853 BIO_printf(bio_err, "Response Verify Failure\n", i); 854 ERR_print_errors(bio_err); 855 } 856 else 857 BIO_printf(bio_err, "Response verify OK\n"); 858 859 } 860 861 if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage)) 862 goto end; 863 864 ret = 0; 865 866end: 867 ERR_print_errors(bio_err); 868 X509_free(signer); 869 X509_STORE_free(store); 870 EVP_PKEY_free(key); 871 EVP_PKEY_free(rkey); 872 X509_free(issuer); 873 X509_free(cert); 874 X509_free(rsigner); 875 X509_free(rca_cert); 876 free_index(rdb); 877 BIO_free_all(cbio); 878 BIO_free_all(acbio); 879 BIO_free(out); 880 OCSP_REQUEST_free(req); 881 OCSP_RESPONSE_free(resp); 882 OCSP_BASICRESP_free(bs); 883 sk_free(reqnames); 884 sk_OCSP_CERTID_free(ids); 885 sk_X509_pop_free(sign_other, X509_free); 886 sk_X509_pop_free(verify_other, X509_free); 887 888 if (use_ssl != -1) 889 { 890 OPENSSL_free(host); 891 OPENSSL_free(port); 892 OPENSSL_free(path); 893 SSL_CTX_free(ctx); 894 } 895 896 OPENSSL_EXIT(ret); 897} 898 899static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 900 STACK_OF(OCSP_CERTID) *ids) 901 { 902 OCSP_CERTID *id; 903 if(!issuer) 904 { 905 BIO_printf(bio_err, "No issuer certificate specified\n"); 906 return 0; 907 } 908 if(!*req) *req = OCSP_REQUEST_new(); 909 if(!*req) goto err; 910 id = OCSP_cert_to_id(NULL, cert, issuer); 911 if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err; 912 if(!OCSP_request_add0_id(*req, id)) goto err; 913 return 1; 914 915 err: 916 BIO_printf(bio_err, "Error Creating OCSP request\n"); 917 return 0; 918 } 919 920static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 921 STACK_OF(OCSP_CERTID) *ids) 922 { 923 OCSP_CERTID *id; 924 X509_NAME *iname; 925 ASN1_BIT_STRING *ikey; 926 ASN1_INTEGER *sno; 927 if(!issuer) 928 { 929 BIO_printf(bio_err, "No issuer certificate specified\n"); 930 return 0; 931 } 932 if(!*req) *req = OCSP_REQUEST_new(); 933 if(!*req) goto err; 934 iname = X509_get_subject_name(issuer); 935 ikey = X509_get0_pubkey_bitstr(issuer); 936 sno = s2i_ASN1_INTEGER(NULL, serial); 937 if(!sno) 938 { 939 BIO_printf(bio_err, "Error converting serial number %s\n", serial); 940 return 0; 941 } 942 id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno); 943 ASN1_INTEGER_free(sno); 944 if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err; 945 if(!OCSP_request_add0_id(*req, id)) goto err; 946 return 1; 947 948 err: 949 BIO_printf(bio_err, "Error Creating OCSP request\n"); 950 return 0; 951 } 952 953static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 954 STACK *names, STACK_OF(OCSP_CERTID) *ids, 955 long nsec, long maxage) 956 { 957 OCSP_CERTID *id; 958 char *name; 959 int i; 960 961 int status, reason; 962 963 ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; 964 965 if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids)) 966 return 1; 967 968 for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) 969 { 970 id = sk_OCSP_CERTID_value(ids, i); 971 name = sk_value(names, i); 972 BIO_printf(out, "%s: ", name); 973 974 if(!OCSP_resp_find_status(bs, id, &status, &reason, 975 &rev, &thisupd, &nextupd)) 976 { 977 BIO_puts(out, "ERROR: No Status found.\n"); 978 continue; 979 } 980 981 /* Check validity: if invalid write to output BIO so we 982 * know which response this refers to. 983 */ 984 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) 985 { 986 BIO_puts(out, "WARNING: Status times invalid.\n"); 987 ERR_print_errors(out); 988 } 989 BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); 990 991 BIO_puts(out, "\tThis Update: "); 992 ASN1_GENERALIZEDTIME_print(out, thisupd); 993 BIO_puts(out, "\n"); 994 995 if(nextupd) 996 { 997 BIO_puts(out, "\tNext Update: "); 998 ASN1_GENERALIZEDTIME_print(out, nextupd); 999 BIO_puts(out, "\n"); 1000 } 1001 1002 if (status != V_OCSP_CERTSTATUS_REVOKED) 1003 continue; 1004 1005 if (reason != -1) 1006 BIO_printf(out, "\tReason: %s\n", 1007 OCSP_crl_reason_str(reason)); 1008 1009 BIO_puts(out, "\tRevocation Time: "); 1010 ASN1_GENERALIZEDTIME_print(out, rev); 1011 BIO_puts(out, "\n"); 1012 } 1013 1014 return 1; 1015 } 1016 1017 1018static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db, 1019 X509 *ca, X509 *rcert, EVP_PKEY *rkey, 1020 STACK_OF(X509) *rother, unsigned long flags, 1021 int nmin, int ndays) 1022 { 1023 ASN1_TIME *thisupd = NULL, *nextupd = NULL; 1024 OCSP_CERTID *cid, *ca_id = NULL; 1025 OCSP_BASICRESP *bs = NULL; 1026 int i, id_count, ret = 1; 1027 1028 1029 id_count = OCSP_request_onereq_count(req); 1030 1031 if (id_count <= 0) 1032 { 1033 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); 1034 goto end; 1035 } 1036 1037 ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca); 1038 1039 bs = OCSP_BASICRESP_new(); 1040 thisupd = X509_gmtime_adj(NULL, 0); 1041 if (ndays != -1) 1042 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 ); 1043 1044 /* Examine each certificate id in the request */ 1045 for (i = 0; i < id_count; i++) 1046 { 1047 OCSP_ONEREQ *one; 1048 ASN1_INTEGER *serial; 1049 char **inf; 1050 one = OCSP_request_onereq_get0(req, i); 1051 cid = OCSP_onereq_get0_id(one); 1052 /* Is this request about our CA? */ 1053 if (OCSP_id_issuer_cmp(ca_id, cid)) 1054 { 1055 OCSP_basic_add1_status(bs, cid, 1056 V_OCSP_CERTSTATUS_UNKNOWN, 1057 0, NULL, 1058 thisupd, nextupd); 1059 continue; 1060 } 1061 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); 1062 inf = lookup_serial(db, serial); 1063 if (!inf) 1064 OCSP_basic_add1_status(bs, cid, 1065 V_OCSP_CERTSTATUS_UNKNOWN, 1066 0, NULL, 1067 thisupd, nextupd); 1068 else if (inf[DB_type][0] == DB_TYPE_VAL) 1069 OCSP_basic_add1_status(bs, cid, 1070 V_OCSP_CERTSTATUS_GOOD, 1071 0, NULL, 1072 thisupd, nextupd); 1073 else if (inf[DB_type][0] == DB_TYPE_REV) 1074 { 1075 ASN1_OBJECT *inst = NULL; 1076 ASN1_TIME *revtm = NULL; 1077 ASN1_GENERALIZEDTIME *invtm = NULL; 1078 OCSP_SINGLERESP *single; 1079 int reason = -1; 1080 unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); 1081 single = OCSP_basic_add1_status(bs, cid, 1082 V_OCSP_CERTSTATUS_REVOKED, 1083 reason, revtm, 1084 thisupd, nextupd); 1085 if (invtm) 1086 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0); 1087 else if (inst) 1088 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0); 1089 ASN1_OBJECT_free(inst); 1090 ASN1_TIME_free(revtm); 1091 ASN1_GENERALIZEDTIME_free(invtm); 1092 } 1093 } 1094 1095 OCSP_copy_nonce(bs, req); 1096 1097 OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags); 1098 1099 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); 1100 1101 end: 1102 ASN1_TIME_free(thisupd); 1103 ASN1_TIME_free(nextupd); 1104 OCSP_CERTID_free(ca_id); 1105 OCSP_BASICRESP_free(bs); 1106 return ret; 1107 1108 } 1109 1110static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) 1111 { 1112 int i; 1113 BIGNUM *bn = NULL; 1114 char *itmp, *row[DB_NUMBER],**rrow; 1115 for (i = 0; i < DB_NUMBER; i++) row[i] = NULL; 1116 bn = ASN1_INTEGER_to_BN(ser,NULL); 1117 if (BN_is_zero(bn)) 1118 itmp = BUF_strdup("00"); 1119 else 1120 itmp = BN_bn2hex(bn); 1121 row[DB_serial] = itmp; 1122 BN_free(bn); 1123 rrow=TXT_DB_get_by_index(db->db,DB_serial,row); 1124 OPENSSL_free(itmp); 1125 return rrow; 1126 } 1127 1128/* Quick and dirty OCSP server: read in and parse input request */ 1129 1130static BIO *init_responder(char *port) 1131 { 1132 BIO *acbio = NULL, *bufbio = NULL; 1133 bufbio = BIO_new(BIO_f_buffer()); 1134 if (!bufbio) 1135 goto err; 1136#ifndef OPENSSL_NO_SOCK 1137 acbio = BIO_new_accept(port); 1138#else 1139 BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n"); 1140#endif 1141 if (!acbio) 1142 goto err; 1143 BIO_set_accept_bios(acbio, bufbio); 1144 bufbio = NULL; 1145 1146 if (BIO_do_accept(acbio) <= 0) 1147 { 1148 BIO_printf(bio_err, "Error setting up accept BIO\n"); 1149 ERR_print_errors(bio_err); 1150 goto err; 1151 } 1152 1153 return acbio; 1154 1155 err: 1156 BIO_free_all(acbio); 1157 BIO_free(bufbio); 1158 return NULL; 1159 } 1160 1161static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port) 1162 { 1163 int have_post = 0, len; 1164 OCSP_REQUEST *req = NULL; 1165 char inbuf[1024]; 1166 BIO *cbio = NULL; 1167 1168 if (BIO_do_accept(acbio) <= 0) 1169 { 1170 BIO_printf(bio_err, "Error accepting connection\n"); 1171 ERR_print_errors(bio_err); 1172 return 0; 1173 } 1174 1175 cbio = BIO_pop(acbio); 1176 *pcbio = cbio; 1177 1178 for(;;) 1179 { 1180 len = BIO_gets(cbio, inbuf, sizeof inbuf); 1181 if (len <= 0) 1182 return 1; 1183 /* Look for "POST" signalling start of query */ 1184 if (!have_post) 1185 { 1186 if(strncmp(inbuf, "POST", 4)) 1187 { 1188 BIO_printf(bio_err, "Invalid request\n"); 1189 return 1; 1190 } 1191 have_post = 1; 1192 } 1193 /* Look for end of headers */ 1194 if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) 1195 break; 1196 } 1197 1198 /* Try to read OCSP request */ 1199 1200 req = d2i_OCSP_REQUEST_bio(cbio, NULL); 1201 1202 if (!req) 1203 { 1204 BIO_printf(bio_err, "Error parsing OCSP request\n"); 1205 ERR_print_errors(bio_err); 1206 } 1207 1208 *preq = req; 1209 1210 return 1; 1211 1212 } 1213 1214static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp) 1215 { 1216 char http_resp[] = 1217 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n" 1218 "Content-Length: %d\r\n\r\n"; 1219 if (!cbio) 1220 return 0; 1221 BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL)); 1222 i2d_OCSP_RESPONSE_bio(cbio, resp); 1223 BIO_flush(cbio); 1224 return 1; 1225 } 1226 1227#endif 1228