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 #include <openssl/bn.h> 68 69 /* Maximum leeway in validity period: default 5 minutes */ 70 #define MAX_VALIDITY_PERIOD (5 * 60) 71 72 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 73 STACK_OF(OCSP_CERTID) *ids); 74 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 75 STACK_OF(OCSP_CERTID) *ids); 76 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 77 STACK *names, STACK_OF(OCSP_CERTID) *ids, 78 long nsec, long maxage); 79 80 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db, 81 X509 *ca, X509 *rcert, EVP_PKEY *rkey, 82 STACK_OF(X509) *rother, unsigned long flags, 83 int nmin, int ndays); 84 85 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); 86 static BIO *init_responder(char *port); 87 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port); 88 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); 89 90 #undef PROG 91 #define PROG ocsp_main 92 93 int MAIN(int, char **); 94 95 int MAIN(int argc, char **argv) 96 { 97 ENGINE *e = NULL; 98 char **args; 99 char *host = NULL, *port = NULL, *path = "/"; 100 char *reqin = NULL, *respin = NULL; 101 char *reqout = NULL, *respout = NULL; 102 char *signfile = NULL, *keyfile = NULL; 103 char *rsignfile = NULL, *rkeyfile = NULL; 104 char *outfile = NULL; 105 int add_nonce = 1, noverify = 0, use_ssl = -1; 106 OCSP_REQUEST *req = NULL; 107 OCSP_RESPONSE *resp = NULL; 108 OCSP_BASICRESP *bs = NULL; 109 X509 *issuer = NULL, *cert = NULL; 110 X509 *signer = NULL, *rsigner = NULL; 111 EVP_PKEY *key = NULL, *rkey = NULL; 112 BIO *acbio = NULL, *cbio = NULL; 113 BIO *derbio = NULL; 114 BIO *out = NULL; 115 int req_text = 0, resp_text = 0; 116 long nsec = MAX_VALIDITY_PERIOD, maxage = -1; 117 char *CAfile = NULL, *CApath = NULL; 118 X509_STORE *store = NULL; 119 SSL_CTX *ctx = NULL; 120 STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; 121 char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; 122 unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; 123 int ret = 1; 124 int accept_count = -1; 125 int badarg = 0; 126 int i; 127 int ignore_err = 0; 128 STACK *reqnames = NULL; 129 STACK_OF(OCSP_CERTID) *ids = NULL; 130 131 X509 *rca_cert = NULL; 132 char *ridx_filename = NULL; 133 char *rca_filename = NULL; 134 CA_DB *rdb = NULL; 135 int nmin = 0, ndays = -1; 136 137 if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 138 139 if (!load_config(bio_err, NULL)) 140 goto end; 141 SSL_load_error_strings(); 142 args = argv + 1; 143 reqnames = sk_new_null(); 144 ids = sk_OCSP_CERTID_new_null(); 145 while (!badarg && *args && *args[0] == '-') 146 { 147 if (!strcmp(*args, "-out")) 148 { 149 if (args[1]) 150 { 151 args++; 152 outfile = *args; 153 } 154 else badarg = 1; 155 } 156 else if (!strcmp(*args, "-url")) 157 { 158 if (args[1]) 159 { 160 args++; 161 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl)) 162 { 163 BIO_printf(bio_err, "Error parsing URL\n"); 164 badarg = 1; 165 } 166 } 167 else badarg = 1; 168 } 169 else if (!strcmp(*args, "-host")) 170 { 171 if (args[1]) 172 { 173 args++; 174 host = *args; 175 } 176 else badarg = 1; 177 } 178 else if (!strcmp(*args, "-port")) 179 { 180 if (args[1]) 181 { 182 args++; 183 port = *args; 184 } 185 else badarg = 1; 186 } 187 else if (!strcmp(*args, "-ignore_err")) 188 ignore_err = 1; 189 else if (!strcmp(*args, "-noverify")) 190 noverify = 1; 191 else if (!strcmp(*args, "-nonce")) 192 add_nonce = 2; 193 else if (!strcmp(*args, "-no_nonce")) 194 add_nonce = 0; 195 else if (!strcmp(*args, "-resp_no_certs")) 196 rflags |= OCSP_NOCERTS; 197 else if (!strcmp(*args, "-resp_key_id")) 198 rflags |= OCSP_RESPID_KEY; 199 else if (!strcmp(*args, "-no_certs")) 200 sign_flags |= OCSP_NOCERTS; 201 else if (!strcmp(*args, "-no_signature_verify")) 202 verify_flags |= OCSP_NOSIGS; 203 else if (!strcmp(*args, "-no_cert_verify")) 204 verify_flags |= OCSP_NOVERIFY; 205 else if (!strcmp(*args, "-no_chain")) 206 verify_flags |= OCSP_NOCHAIN; 207 else if (!strcmp(*args, "-no_cert_checks")) 208 verify_flags |= OCSP_NOCHECKS; 209 else if (!strcmp(*args, "-no_explicit")) 210 verify_flags |= OCSP_NOEXPLICIT; 211 else if (!strcmp(*args, "-trust_other")) 212 verify_flags |= OCSP_TRUSTOTHER; 213 else if (!strcmp(*args, "-no_intern")) 214 verify_flags |= OCSP_NOINTERN; 215 else if (!strcmp(*args, "-text")) 216 { 217 req_text = 1; 218 resp_text = 1; 219 } 220 else if (!strcmp(*args, "-req_text")) 221 req_text = 1; 222 else if (!strcmp(*args, "-resp_text")) 223 resp_text = 1; 224 else if (!strcmp(*args, "-reqin")) 225 { 226 if (args[1]) 227 { 228 args++; 229 reqin = *args; 230 } 231 else badarg = 1; 232 } 233 else if (!strcmp(*args, "-respin")) 234 { 235 if (args[1]) 236 { 237 args++; 238 respin = *args; 239 } 240 else badarg = 1; 241 } 242 else if (!strcmp(*args, "-signer")) 243 { 244 if (args[1]) 245 { 246 args++; 247 signfile = *args; 248 } 249 else badarg = 1; 250 } 251 else if (!strcmp (*args, "-VAfile")) 252 { 253 if (args[1]) 254 { 255 args++; 256 verify_certfile = *args; 257 verify_flags |= OCSP_TRUSTOTHER; 258 } 259 else badarg = 1; 260 } 261 else if (!strcmp(*args, "-sign_other")) 262 { 263 if (args[1]) 264 { 265 args++; 266 sign_certfile = *args; 267 } 268 else badarg = 1; 269 } 270 else if (!strcmp(*args, "-verify_other")) 271 { 272 if (args[1]) 273 { 274 args++; 275 verify_certfile = *args; 276 } 277 else badarg = 1; 278 } 279 else if (!strcmp (*args, "-CAfile")) 280 { 281 if (args[1]) 282 { 283 args++; 284 CAfile = *args; 285 } 286 else badarg = 1; 287 } 288 else if (!strcmp (*args, "-CApath")) 289 { 290 if (args[1]) 291 { 292 args++; 293 CApath = *args; 294 } 295 else badarg = 1; 296 } 297 else if (!strcmp (*args, "-validity_period")) 298 { 299 if (args[1]) 300 { 301 args++; 302 nsec = atol(*args); 303 if (nsec < 0) 304 { 305 BIO_printf(bio_err, 306 "Illegal validity period %s\n", 307 *args); 308 badarg = 1; 309 } 310 } 311 else badarg = 1; 312 } 313 else if (!strcmp (*args, "-status_age")) 314 { 315 if (args[1]) 316 { 317 args++; 318 maxage = atol(*args); 319 if (maxage < 0) 320 { 321 BIO_printf(bio_err, 322 "Illegal validity age %s\n", 323 *args); 324 badarg = 1; 325 } 326 } 327 else badarg = 1; 328 } 329 else if (!strcmp(*args, "-signkey")) 330 { 331 if (args[1]) 332 { 333 args++; 334 keyfile = *args; 335 } 336 else badarg = 1; 337 } 338 else if (!strcmp(*args, "-reqout")) 339 { 340 if (args[1]) 341 { 342 args++; 343 reqout = *args; 344 } 345 else badarg = 1; 346 } 347 else if (!strcmp(*args, "-respout")) 348 { 349 if (args[1]) 350 { 351 args++; 352 respout = *args; 353 } 354 else badarg = 1; 355 } 356 else if (!strcmp(*args, "-path")) 357 { 358 if (args[1]) 359 { 360 args++; 361 path = *args; 362 } 363 else badarg = 1; 364 } 365 else if (!strcmp(*args, "-issuer")) 366 { 367 if (args[1]) 368 { 369 args++; 370 X509_free(issuer); 371 issuer = load_cert(bio_err, *args, FORMAT_PEM, 372 NULL, e, "issuer certificate"); 373 if(!issuer) goto end; 374 } 375 else badarg = 1; 376 } 377 else if (!strcmp (*args, "-cert")) 378 { 379 if (args[1]) 380 { 381 args++; 382 X509_free(cert); 383 cert = load_cert(bio_err, *args, FORMAT_PEM, 384 NULL, e, "certificate"); 385 if(!cert) goto end; 386 if(!add_ocsp_cert(&req, cert, issuer, ids)) 387 goto end; 388 if(!sk_push(reqnames, *args)) 389 goto end; 390 } 391 else badarg = 1; 392 } 393 else if (!strcmp(*args, "-serial")) 394 { 395 if (args[1]) 396 { 397 args++; 398 if(!add_ocsp_serial(&req, *args, issuer, ids)) 399 goto end; 400 if(!sk_push(reqnames, *args)) 401 goto end; 402 } 403 else badarg = 1; 404 } 405 else if (!strcmp(*args, "-index")) 406 { 407 if (args[1]) 408 { 409 args++; 410 ridx_filename = *args; 411 } 412 else badarg = 1; 413 } 414 else if (!strcmp(*args, "-CA")) 415 { 416 if (args[1]) 417 { 418 args++; 419 rca_filename = *args; 420 } 421 else badarg = 1; 422 } 423 else if (!strcmp (*args, "-nmin")) 424 { 425 if (args[1]) 426 { 427 args++; 428 nmin = atol(*args); 429 if (nmin < 0) 430 { 431 BIO_printf(bio_err, 432 "Illegal update period %s\n", 433 *args); 434 badarg = 1; 435 } 436 } 437 if (ndays == -1) 438 ndays = 0; 439 else badarg = 1; 440 } 441 else if (!strcmp (*args, "-nrequest")) 442 { 443 if (args[1]) 444 { 445 args++; 446 accept_count = atol(*args); 447 if (accept_count < 0) 448 { 449 BIO_printf(bio_err, 450 "Illegal accept count %s\n", 451 *args); 452 badarg = 1; 453 } 454 } 455 else badarg = 1; 456 } 457 else if (!strcmp (*args, "-ndays")) 458 { 459 if (args[1]) 460 { 461 args++; 462 ndays = atol(*args); 463 if (ndays < 0) 464 { 465 BIO_printf(bio_err, 466 "Illegal update period %s\n", 467 *args); 468 badarg = 1; 469 } 470 } 471 else badarg = 1; 472 } 473 else if (!strcmp(*args, "-rsigner")) 474 { 475 if (args[1]) 476 { 477 args++; 478 rsignfile = *args; 479 } 480 else badarg = 1; 481 } 482 else if (!strcmp(*args, "-rkey")) 483 { 484 if (args[1]) 485 { 486 args++; 487 rkeyfile = *args; 488 } 489 else badarg = 1; 490 } 491 else if (!strcmp(*args, "-rother")) 492 { 493 if (args[1]) 494 { 495 args++; 496 rcertfile = *args; 497 } 498 else badarg = 1; 499 } 500 else badarg = 1; 501 args++; 502 } 503 504 /* Have we anything to do? */ 505 if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1; 506 507 if (badarg) 508 { 509 BIO_printf (bio_err, "OCSP utility\n"); 510 BIO_printf (bio_err, "Usage ocsp [options]\n"); 511 BIO_printf (bio_err, "where options are\n"); 512 BIO_printf (bio_err, "-out file output filename\n"); 513 BIO_printf (bio_err, "-issuer file issuer certificate\n"); 514 BIO_printf (bio_err, "-cert file certificate to check\n"); 515 BIO_printf (bio_err, "-serial n serial number to check\n"); 516 BIO_printf (bio_err, "-signer file certificate to sign OCSP request with\n"); 517 BIO_printf (bio_err, "-signkey file private key to sign OCSP request with\n"); 518 BIO_printf (bio_err, "-sign_other file additional certificates to include in signed request\n"); 519 BIO_printf (bio_err, "-no_certs don't include any certificates in signed request\n"); 520 BIO_printf (bio_err, "-req_text print text form of request\n"); 521 BIO_printf (bio_err, "-resp_text print text form of response\n"); 522 BIO_printf (bio_err, "-text print text form of request and response\n"); 523 BIO_printf (bio_err, "-reqout file write DER encoded OCSP request to \"file\"\n"); 524 BIO_printf (bio_err, "-respout file write DER encoded OCSP reponse to \"file\"\n"); 525 BIO_printf (bio_err, "-reqin file read DER encoded OCSP request from \"file\"\n"); 526 BIO_printf (bio_err, "-respin file read DER encoded OCSP reponse from \"file\"\n"); 527 BIO_printf (bio_err, "-nonce add OCSP nonce to request\n"); 528 BIO_printf (bio_err, "-no_nonce don't add OCSP nonce to request\n"); 529 BIO_printf (bio_err, "-url URL OCSP responder URL\n"); 530 BIO_printf (bio_err, "-host host:n send OCSP request to host on port n\n"); 531 BIO_printf (bio_err, "-path path to use in OCSP request\n"); 532 BIO_printf (bio_err, "-CApath dir trusted certificates directory\n"); 533 BIO_printf (bio_err, "-CAfile file trusted certificates file\n"); 534 BIO_printf (bio_err, "-VAfile file validator certificates file\n"); 535 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n"); 536 BIO_printf (bio_err, "-status_age n maximum status age in seconds\n"); 537 BIO_printf (bio_err, "-noverify don't verify response at all\n"); 538 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n"); 539 BIO_printf (bio_err, "-trust_other don't verify additional certificates\n"); 540 BIO_printf (bio_err, "-no_intern don't search certificates contained in response for signer\n"); 541 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n"); 542 BIO_printf (bio_err, "-no_cert_verify don't check signing certificate\n"); 543 BIO_printf (bio_err, "-no_chain don't chain verify response\n"); 544 BIO_printf (bio_err, "-no_cert_checks don't do additional checks on signing certificate\n"); 545 BIO_printf (bio_err, "-port num port to run responder on\n"); 546 BIO_printf (bio_err, "-index file certificate status index file\n"); 547 BIO_printf (bio_err, "-CA file CA certificate\n"); 548 BIO_printf (bio_err, "-rsigner file responder certificate to sign responses with\n"); 549 BIO_printf (bio_err, "-rkey file responder key to sign responses with\n"); 550 BIO_printf (bio_err, "-rother file other certificates to include in response\n"); 551 BIO_printf (bio_err, "-resp_no_certs don't include any certificates in response\n"); 552 BIO_printf (bio_err, "-nmin n number of minutes before next update\n"); 553 BIO_printf (bio_err, "-ndays n number of days before next update\n"); 554 BIO_printf (bio_err, "-resp_key_id identify reponse by signing certificate key ID\n"); 555 BIO_printf (bio_err, "-nrequest n number of requests to accept (default unlimited)\n"); 556 goto end; 557 } 558 559 if(outfile) out = BIO_new_file(outfile, "w"); 560 else out = BIO_new_fp(stdout, BIO_NOCLOSE); 561 562 if(!out) 563 { 564 BIO_printf(bio_err, "Error opening output file\n"); 565 goto end; 566 } 567 568 if (!req && (add_nonce != 2)) add_nonce = 0; 569 570 if (!req && reqin) 571 { 572 derbio = BIO_new_file(reqin, "rb"); 573 if (!derbio) 574 { 575 BIO_printf(bio_err, "Error Opening OCSP request file\n"); 576 goto end; 577 } 578 req = d2i_OCSP_REQUEST_bio(derbio, NULL); 579 BIO_free(derbio); 580 if(!req) 581 { 582 BIO_printf(bio_err, "Error reading OCSP request\n"); 583 goto end; 584 } 585 } 586 587 if (!req && port) 588 { 589 acbio = init_responder(port); 590 if (!acbio) 591 goto end; 592 } 593 594 if (rsignfile && !rdb) 595 { 596 if (!rkeyfile) rkeyfile = rsignfile; 597 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM, 598 NULL, e, "responder certificate"); 599 if (!rsigner) 600 { 601 BIO_printf(bio_err, "Error loading responder certificate\n"); 602 goto end; 603 } 604 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM, 605 NULL, e, "CA certificate"); 606 if (rcertfile) 607 { 608 rother = load_certs(bio_err, rcertfile, FORMAT_PEM, 609 NULL, e, "responder other certificates"); 610 if (!rother) goto end; 611 } 612 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL, 613 "responder private key"); 614 if (!rkey) 615 goto end; 616 } 617 if(acbio) 618 BIO_printf(bio_err, "Waiting for OCSP client connections...\n"); 619 620 redo_accept: 621 622 if (acbio) 623 { 624 if (!do_responder(&req, &cbio, acbio, port)) 625 goto end; 626 if (!req) 627 { 628 resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); 629 send_ocsp_response(cbio, resp); 630 goto done_resp; 631 } 632 } 633 634 if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) 635 { 636 BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); 637 goto end; 638 } 639 640 if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1); 641 642 if (signfile) 643 { 644 if (!keyfile) keyfile = signfile; 645 signer = load_cert(bio_err, signfile, FORMAT_PEM, 646 NULL, e, "signer certificate"); 647 if (!signer) 648 { 649 BIO_printf(bio_err, "Error loading signer certificate\n"); 650 goto end; 651 } 652 if (sign_certfile) 653 { 654 sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM, 655 NULL, e, "signer certificates"); 656 if (!sign_other) goto end; 657 } 658 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL, 659 "signer private key"); 660 if (!key) 661 goto end; 662 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags)) 663 { 664 BIO_printf(bio_err, "Error signing OCSP request\n"); 665 goto end; 666 } 667 } 668 669 if (req_text && req) OCSP_REQUEST_print(out, req, 0); 670 671 if (reqout) 672 { 673 derbio = BIO_new_file(reqout, "wb"); 674 if(!derbio) 675 { 676 BIO_printf(bio_err, "Error opening file %s\n", reqout); 677 goto end; 678 } 679 i2d_OCSP_REQUEST_bio(derbio, req); 680 BIO_free(derbio); 681 } 682 683 if (ridx_filename && (!rkey || !rsigner || !rca_cert)) 684 { 685 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n"); 686 goto end; 687 } 688 689 if (ridx_filename && !rdb) 690 { 691 rdb = load_index(ridx_filename, NULL); 692 if (!rdb) goto end; 693 if (!index_index(rdb)) goto end; 694 } 695 696 if (rdb) 697 { 698 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays); 699 if (cbio) 700 send_ocsp_response(cbio, resp); 701 } 702 else if (host) 703 { 704 #ifndef OPENSSL_NO_SOCK 705 cbio = BIO_new_connect(host); 706 #else 707 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n"); 708 goto end; 709 #endif 710 if (!cbio) 711 { 712 BIO_printf(bio_err, "Error creating connect BIO\n"); 713 goto end; 714 } 715 if (port) BIO_set_conn_port(cbio, port); 716 if (use_ssl == 1) 717 { 718 BIO *sbio; 719 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 720 ctx = SSL_CTX_new(SSLv23_client_method()); 721 #elif !defined(OPENSSL_NO_SSL3) 722 ctx = SSL_CTX_new(SSLv3_client_method()); 723 #elif !defined(OPENSSL_NO_SSL2) 724 ctx = SSL_CTX_new(SSLv2_client_method()); 725 #else 726 BIO_printf(bio_err, "SSL is disabled\n"); 727 goto end; 728 #endif 729 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); 730 sbio = BIO_new_ssl(ctx, 1); 731 cbio = BIO_push(sbio, cbio); 732 } 733 if (BIO_do_connect(cbio) <= 0) 734 { 735 BIO_printf(bio_err, "Error connecting BIO\n"); 736 goto end; 737 } 738 resp = OCSP_sendreq_bio(cbio, path, req); 739 BIO_free_all(cbio); 740 cbio = NULL; 741 if (!resp) 742 { 743 BIO_printf(bio_err, "Error querying OCSP responsder\n"); 744 goto end; 745 } 746 } 747 else if (respin) 748 { 749 derbio = BIO_new_file(respin, "rb"); 750 if (!derbio) 751 { 752 BIO_printf(bio_err, "Error Opening OCSP response file\n"); 753 goto end; 754 } 755 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 756 BIO_free(derbio); 757 if(!resp) 758 { 759 BIO_printf(bio_err, "Error reading OCSP response\n"); 760 goto end; 761 } 762 763 } 764 else 765 { 766 ret = 0; 767 goto end; 768 } 769 770 done_resp: 771 772 if (respout) 773 { 774 derbio = BIO_new_file(respout, "wb"); 775 if(!derbio) 776 { 777 BIO_printf(bio_err, "Error opening file %s\n", respout); 778 goto end; 779 } 780 i2d_OCSP_RESPONSE_bio(derbio, resp); 781 BIO_free(derbio); 782 } 783 784 i = OCSP_response_status(resp); 785 786 if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) 787 { 788 BIO_printf(out, "Responder Error: %s (%d)\n", 789 OCSP_response_status_str(i), i); 790 if (ignore_err) 791 goto redo_accept; 792 ret = 0; 793 goto end; 794 } 795 796 if (resp_text) OCSP_RESPONSE_print(out, resp, 0); 797 798 /* If running as responder don't verify our own response */ 799 if (cbio) 800 { 801 if (accept_count > 0) 802 accept_count--; 803 /* Redo if more connections needed */ 804 if (accept_count) 805 { 806 BIO_free_all(cbio); 807 cbio = NULL; 808 OCSP_REQUEST_free(req); 809 req = NULL; 810 OCSP_RESPONSE_free(resp); 811 resp = NULL; 812 goto redo_accept; 813 } 814 goto end; 815 } 816 817 if (!store) 818 store = setup_verify(bio_err, CAfile, CApath); 819 if (!store) 820 goto end; 821 if (verify_certfile) 822 { 823 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM, 824 NULL, e, "validator certificate"); 825 if (!verify_other) goto end; 826 } 827 828 bs = OCSP_response_get1_basic(resp); 829 830 if (!bs) 831 { 832 BIO_printf(bio_err, "Error parsing response\n"); 833 goto end; 834 } 835 836 if (!noverify) 837 { 838 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) 839 { 840 if (i == -1) 841 BIO_printf(bio_err, "WARNING: no nonce in response\n"); 842 else 843 { 844 BIO_printf(bio_err, "Nonce Verify error\n"); 845 goto end; 846 } 847 } 848 849 i = OCSP_basic_verify(bs, verify_other, store, verify_flags); 850 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0); 851 852 if(i <= 0) 853 { 854 BIO_printf(bio_err, "Response Verify Failure\n"); 855 ERR_print_errors(bio_err); 856 } 857 else 858 BIO_printf(bio_err, "Response verify OK\n"); 859 860 } 861 862 if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage)) 863 goto end; 864 865 ret = 0; 866 867 end: 868 ERR_print_errors(bio_err); 869 X509_free(signer); 870 X509_STORE_free(store); 871 EVP_PKEY_free(key); 872 EVP_PKEY_free(rkey); 873 X509_free(issuer); 874 X509_free(cert); 875 X509_free(rsigner); 876 X509_free(rca_cert); 877 free_index(rdb); 878 BIO_free_all(cbio); 879 BIO_free_all(acbio); 880 BIO_free(out); 881 OCSP_REQUEST_free(req); 882 OCSP_RESPONSE_free(resp); 883 OCSP_BASICRESP_free(bs); 884 sk_free(reqnames); 885 sk_OCSP_CERTID_free(ids); 886 sk_X509_pop_free(sign_other, X509_free); 887 sk_X509_pop_free(verify_other, X509_free); 888 889 if (use_ssl != -1) 890 { 891 OPENSSL_free(host); 892 OPENSSL_free(port); 893 OPENSSL_free(path); 894 SSL_CTX_free(ctx); 895 } 896 897 OPENSSL_EXIT(ret); 898 } 899 900 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 901 STACK_OF(OCSP_CERTID) *ids) 902 { 903 OCSP_CERTID *id; 904 if(!issuer) 905 { 906 BIO_printf(bio_err, "No issuer certificate specified\n"); 907 return 0; 908 } 909 if(!*req) *req = OCSP_REQUEST_new(); 910 if(!*req) goto err; 911 id = OCSP_cert_to_id(NULL, cert, issuer); 912 if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err; 913 if(!OCSP_request_add0_id(*req, id)) goto err; 914 return 1; 915 916 err: 917 BIO_printf(bio_err, "Error Creating OCSP request\n"); 918 return 0; 919 } 920 921 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 922 STACK_OF(OCSP_CERTID) *ids) 923 { 924 OCSP_CERTID *id; 925 X509_NAME *iname; 926 ASN1_BIT_STRING *ikey; 927 ASN1_INTEGER *sno; 928 if(!issuer) 929 { 930 BIO_printf(bio_err, "No issuer certificate specified\n"); 931 return 0; 932 } 933 if(!*req) *req = OCSP_REQUEST_new(); 934 if(!*req) goto err; 935 iname = X509_get_subject_name(issuer); 936 ikey = X509_get0_pubkey_bitstr(issuer); 937 sno = s2i_ASN1_INTEGER(NULL, serial); 938 if(!sno) 939 { 940 BIO_printf(bio_err, "Error converting serial number %s\n", serial); 941 return 0; 942 } 943 id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno); 944 ASN1_INTEGER_free(sno); 945 if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err; 946 if(!OCSP_request_add0_id(*req, id)) goto err; 947 return 1; 948 949 err: 950 BIO_printf(bio_err, "Error Creating OCSP request\n"); 951 return 0; 952 } 953 954 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 955 STACK *names, STACK_OF(OCSP_CERTID) *ids, 956 long nsec, long maxage) 957 { 958 OCSP_CERTID *id; 959 char *name; 960 int i; 961 962 int status, reason; 963 964 ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; 965 966 if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids)) 967 return 1; 968 969 for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) 970 { 971 id = sk_OCSP_CERTID_value(ids, i); 972 name = sk_value(names, i); 973 BIO_printf(out, "%s: ", name); 974 975 if(!OCSP_resp_find_status(bs, id, &status, &reason, 976 &rev, &thisupd, &nextupd)) 977 { 978 BIO_puts(out, "ERROR: No Status found.\n"); 979 continue; 980 } 981 982 /* Check validity: if invalid write to output BIO so we 983 * know which response this refers to. 984 */ 985 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) 986 { 987 BIO_puts(out, "WARNING: Status times invalid.\n"); 988 ERR_print_errors(out); 989 } 990 BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); 991 992 BIO_puts(out, "\tThis Update: "); 993 ASN1_GENERALIZEDTIME_print(out, thisupd); 994 BIO_puts(out, "\n"); 995 996 if(nextupd) 997 { 998 BIO_puts(out, "\tNext Update: "); 999 ASN1_GENERALIZEDTIME_print(out, nextupd); 1000 BIO_puts(out, "\n"); 1001 } 1002 1003 if (status != V_OCSP_CERTSTATUS_REVOKED) 1004 continue; 1005 1006 if (reason != -1) 1007 BIO_printf(out, "\tReason: %s\n", 1008 OCSP_crl_reason_str(reason)); 1009 1010 BIO_puts(out, "\tRevocation Time: "); 1011 ASN1_GENERALIZEDTIME_print(out, rev); 1012 BIO_puts(out, "\n"); 1013 } 1014 1015 return 1; 1016 } 1017 1018 1019 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db, 1020 X509 *ca, X509 *rcert, EVP_PKEY *rkey, 1021 STACK_OF(X509) *rother, unsigned long flags, 1022 int nmin, int ndays) 1023 { 1024 ASN1_TIME *thisupd = NULL, *nextupd = NULL; 1025 OCSP_CERTID *cid, *ca_id = NULL; 1026 OCSP_BASICRESP *bs = NULL; 1027 int i, id_count, ret = 1; 1028 1029 1030 id_count = OCSP_request_onereq_count(req); 1031 1032 if (id_count <= 0) 1033 { 1034 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); 1035 goto end; 1036 } 1037 1038 ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca); 1039 1040 bs = OCSP_BASICRESP_new(); 1041 thisupd = X509_gmtime_adj(NULL, 0); 1042 if (ndays != -1) 1043 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 ); 1044 1045 /* Examine each certificate id in the request */ 1046 for (i = 0; i < id_count; i++) 1047 { 1048 OCSP_ONEREQ *one; 1049 ASN1_INTEGER *serial; 1050 char **inf; 1051 one = OCSP_request_onereq_get0(req, i); 1052 cid = OCSP_onereq_get0_id(one); 1053 /* Is this request about our CA? */ 1054 if (OCSP_id_issuer_cmp(ca_id, cid)) 1055 { 1056 OCSP_basic_add1_status(bs, cid, 1057 V_OCSP_CERTSTATUS_UNKNOWN, 1058 0, NULL, 1059 thisupd, nextupd); 1060 continue; 1061 } 1062 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); 1063 inf = lookup_serial(db, serial); 1064 if (!inf) 1065 OCSP_basic_add1_status(bs, cid, 1066 V_OCSP_CERTSTATUS_UNKNOWN, 1067 0, NULL, 1068 thisupd, nextupd); 1069 else if (inf[DB_type][0] == DB_TYPE_VAL) 1070 OCSP_basic_add1_status(bs, cid, 1071 V_OCSP_CERTSTATUS_GOOD, 1072 0, NULL, 1073 thisupd, nextupd); 1074 else if (inf[DB_type][0] == DB_TYPE_REV) 1075 { 1076 ASN1_OBJECT *inst = NULL; 1077 ASN1_TIME *revtm = NULL; 1078 ASN1_GENERALIZEDTIME *invtm = NULL; 1079 OCSP_SINGLERESP *single; 1080 int reason = -1; 1081 unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); 1082 single = OCSP_basic_add1_status(bs, cid, 1083 V_OCSP_CERTSTATUS_REVOKED, 1084 reason, revtm, 1085 thisupd, nextupd); 1086 if (invtm) 1087 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0); 1088 else if (inst) 1089 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0); 1090 ASN1_OBJECT_free(inst); 1091 ASN1_TIME_free(revtm); 1092 ASN1_GENERALIZEDTIME_free(invtm); 1093 } 1094 } 1095 1096 OCSP_copy_nonce(bs, req); 1097 1098 OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags); 1099 1100 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); 1101 1102 end: 1103 ASN1_TIME_free(thisupd); 1104 ASN1_TIME_free(nextupd); 1105 OCSP_CERTID_free(ca_id); 1106 OCSP_BASICRESP_free(bs); 1107 return ret; 1108 1109 } 1110 1111 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) 1112 { 1113 int i; 1114 BIGNUM *bn = NULL; 1115 char *itmp, *row[DB_NUMBER],**rrow; 1116 for (i = 0; i < DB_NUMBER; i++) row[i] = NULL; 1117 bn = ASN1_INTEGER_to_BN(ser,NULL); 1118 if (BN_is_zero(bn)) 1119 itmp = BUF_strdup("00"); 1120 else 1121 itmp = BN_bn2hex(bn); 1122 row[DB_serial] = itmp; 1123 BN_free(bn); 1124 rrow=TXT_DB_get_by_index(db->db,DB_serial,row); 1125 OPENSSL_free(itmp); 1126 return rrow; 1127 } 1128 1129 /* Quick and dirty OCSP server: read in and parse input request */ 1130 1131 static BIO *init_responder(char *port) 1132 { 1133 BIO *acbio = NULL, *bufbio = NULL; 1134 bufbio = BIO_new(BIO_f_buffer()); 1135 if (!bufbio) 1136 goto err; 1137 #ifndef OPENSSL_NO_SOCK 1138 acbio = BIO_new_accept(port); 1139 #else 1140 BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n"); 1141 #endif 1142 if (!acbio) 1143 goto err; 1144 BIO_set_accept_bios(acbio, bufbio); 1145 bufbio = NULL; 1146 1147 if (BIO_do_accept(acbio) <= 0) 1148 { 1149 BIO_printf(bio_err, "Error setting up accept BIO\n"); 1150 ERR_print_errors(bio_err); 1151 goto err; 1152 } 1153 1154 return acbio; 1155 1156 err: 1157 BIO_free_all(acbio); 1158 BIO_free(bufbio); 1159 return NULL; 1160 } 1161 1162 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port) 1163 { 1164 int have_post = 0, len; 1165 OCSP_REQUEST *req = NULL; 1166 char inbuf[1024]; 1167 BIO *cbio = NULL; 1168 1169 if (BIO_do_accept(acbio) <= 0) 1170 { 1171 BIO_printf(bio_err, "Error accepting connection\n"); 1172 ERR_print_errors(bio_err); 1173 return 0; 1174 } 1175 1176 cbio = BIO_pop(acbio); 1177 *pcbio = cbio; 1178 1179 for(;;) 1180 { 1181 len = BIO_gets(cbio, inbuf, sizeof inbuf); 1182 if (len <= 0) 1183 return 1; 1184 /* Look for "POST" signalling start of query */ 1185 if (!have_post) 1186 { 1187 if(strncmp(inbuf, "POST", 4)) 1188 { 1189 BIO_printf(bio_err, "Invalid request\n"); 1190 return 1; 1191 } 1192 have_post = 1; 1193 } 1194 /* Look for end of headers */ 1195 if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) 1196 break; 1197 } 1198 1199 /* Try to read OCSP request */ 1200 1201 req = d2i_OCSP_REQUEST_bio(cbio, NULL); 1202 1203 if (!req) 1204 { 1205 BIO_printf(bio_err, "Error parsing OCSP request\n"); 1206 ERR_print_errors(bio_err); 1207 } 1208 1209 *preq = req; 1210 1211 return 1; 1212 1213 } 1214 1215 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp) 1216 { 1217 char http_resp[] = 1218 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n" 1219 "Content-Length: %d\r\n\r\n"; 1220 if (!cbio) 1221 return 0; 1222 BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL)); 1223 i2d_OCSP_RESPONSE_bio(cbio, resp); 1224 BIO_flush(cbio); 1225 return 1; 1226 } 1227 1228 #endif 1229