ocsp.c revision 296465
11541Srgrimes/* ocsp.c */ 21541Srgrimes/* 31541Srgrimes * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 41541Srgrimes * 2000. 51541Srgrimes */ 61541Srgrimes/* ==================================================================== 71541Srgrimes * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 81541Srgrimes * 91541Srgrimes * Redistribution and use in source and binary forms, with or without 101541Srgrimes * modification, are permitted provided that the following conditions 111541Srgrimes * are met: 121541Srgrimes * 131541Srgrimes * 1. Redistributions of source code must retain the above copyright 141541Srgrimes * notice, this list of conditions and the following disclaimer. 151541Srgrimes * 161541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 171541Srgrimes * notice, this list of conditions and the following disclaimer in 181541Srgrimes * the documentation and/or other materials provided with the 191541Srgrimes * distribution. 201541Srgrimes * 211541Srgrimes * 3. All advertising materials mentioning features or use of this 221541Srgrimes * software must display the following acknowledgment: 231541Srgrimes * "This product includes software developed by the OpenSSL Project 241541Srgrimes * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 251541Srgrimes * 261541Srgrimes * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 271541Srgrimes * endorse or promote products derived from this software without 281541Srgrimes * prior written permission. For written permission, please contact 291541Srgrimes * licensing@OpenSSL.org. 301541Srgrimes * 311541Srgrimes * 5. Products derived from this software may not be called "OpenSSL" 321541Srgrimes * nor may "OpenSSL" appear in their names without prior written 331541Srgrimes * permission of the OpenSSL Project. 341541Srgrimes * 351541Srgrimes * 6. Redistributions of any form whatsoever must retain the following 361817Sdg * acknowledgment: 371817Sdg * "This product includes software developed by the OpenSSL Project 381541Srgrimes * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 391541Srgrimes * 401541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 411541Srgrimes * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 421541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 431541Srgrimes * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 441541Srgrimes * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 451541Srgrimes * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 461541Srgrimes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 471541Srgrimes * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 481541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 491541Srgrimes * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 501541Srgrimes * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 511541Srgrimes * OF THE POSSIBILITY OF SUCH DAMAGE. 521541Srgrimes * ==================================================================== 531541Srgrimes * 541541Srgrimes * This product includes cryptographic software written by Eric Young 551541Srgrimes * (eay@cryptsoft.com). This product includes software written by Tim 561541Srgrimes * Hudson (tjh@cryptsoft.com). 571541Srgrimes * 581541Srgrimes */ 591541Srgrimes#ifndef OPENSSL_NO_OCSP 601541Srgrimes# define USE_SOCKETS 611541Srgrimes# include <stdio.h> 621541Srgrimes# include <stdlib.h> 631541Srgrimes# include <string.h> 64# include "apps.h" /* needs to be included before the openssl 65 * headers! */ 66# include <openssl/e_os2.h> 67# include <openssl/ssl.h> 68# include <openssl/err.h> 69 70/* Maximum leeway in validity period: default 5 minutes */ 71# define MAX_VALIDITY_PERIOD (5 * 60) 72 73static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 74 STACK_OF(OCSP_CERTID) *ids); 75static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 76 STACK_OF(OCSP_CERTID) *ids); 77static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 78 STACK * names, STACK_OF(OCSP_CERTID) *ids, 79 long nsec, long maxage); 80 81static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, 82 CA_DB *db, X509 *ca, X509 *rcert, 83 EVP_PKEY *rkey, STACK_OF(X509) *rother, 84 unsigned long flags, int nmin, int ndays); 85 86static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); 87static BIO *init_responder(char *port); 88static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, 89 char *port); 90static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); 91static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path, 92 OCSP_REQUEST *req, int req_timeout); 93 94# undef PROG 95# define PROG ocsp_main 96 97int MAIN(int, char **); 98 99int MAIN(int argc, char **argv) 100{ 101 ENGINE *e = NULL; 102 char **args; 103 char *host = NULL, *port = NULL, *path = "/"; 104 char *thost = NULL, *tport = NULL, *tpath = NULL; 105 char *reqin = NULL, *respin = NULL; 106 char *reqout = NULL, *respout = NULL; 107 char *signfile = NULL, *keyfile = NULL; 108 char *rsignfile = NULL, *rkeyfile = NULL; 109 char *outfile = NULL; 110 int add_nonce = 1, noverify = 0, use_ssl = -1; 111 OCSP_REQUEST *req = NULL; 112 OCSP_RESPONSE *resp = NULL; 113 OCSP_BASICRESP *bs = NULL; 114 X509 *issuer = NULL, *cert = NULL; 115 X509 *signer = NULL, *rsigner = NULL; 116 EVP_PKEY *key = NULL, *rkey = NULL; 117 BIO *acbio = NULL, *cbio = NULL; 118 BIO *derbio = NULL; 119 BIO *out = NULL; 120 int req_timeout = -1; 121 int req_text = 0, resp_text = 0; 122 long nsec = MAX_VALIDITY_PERIOD, maxage = -1; 123 char *CAfile = NULL, *CApath = NULL; 124 X509_STORE *store = NULL; 125 STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; 126 char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; 127 unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; 128 int ret = 1; 129 int accept_count = -1; 130 int badarg = 0; 131 int i; 132 int ignore_err = 0; 133 STACK *reqnames = NULL; 134 STACK_OF(OCSP_CERTID) *ids = NULL; 135 136 X509 *rca_cert = NULL; 137 char *ridx_filename = NULL; 138 char *rca_filename = NULL; 139 CA_DB *rdb = NULL; 140 int nmin = 0, ndays = -1; 141 142 if (bio_err == NULL) 143 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 144 145 if (!load_config(bio_err, NULL)) 146 goto end; 147 SSL_load_error_strings(); 148 OpenSSL_add_ssl_algorithms(); 149 args = argv + 1; 150 reqnames = sk_new_null(); 151 ids = sk_OCSP_CERTID_new_null(); 152 while (!badarg && *args && *args[0] == '-') { 153 if (!strcmp(*args, "-out")) { 154 if (args[1]) { 155 args++; 156 outfile = *args; 157 } else 158 badarg = 1; 159 } else if (!strcmp(*args, "-timeout")) { 160 if (args[1]) { 161 args++; 162 req_timeout = atol(*args); 163 if (req_timeout < 0) { 164 BIO_printf(bio_err, "Illegal timeout value %s\n", *args); 165 badarg = 1; 166 } 167 } else 168 badarg = 1; 169 } else if (!strcmp(*args, "-url")) { 170 if (thost) 171 OPENSSL_free(thost); 172 if (tport) 173 OPENSSL_free(tport); 174 if (tpath) 175 OPENSSL_free(tpath); 176 if (args[1]) { 177 args++; 178 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl)) { 179 BIO_printf(bio_err, "Error parsing URL\n"); 180 badarg = 1; 181 } 182 thost = host; 183 tport = port; 184 tpath = path; 185 } else 186 badarg = 1; 187 } else if (!strcmp(*args, "-host")) { 188 if (args[1]) { 189 args++; 190 host = *args; 191 } else 192 badarg = 1; 193 } else if (!strcmp(*args, "-port")) { 194 if (args[1]) { 195 args++; 196 port = *args; 197 } else 198 badarg = 1; 199 } else if (!strcmp(*args, "-ignore_err")) 200 ignore_err = 1; 201 else if (!strcmp(*args, "-noverify")) 202 noverify = 1; 203 else if (!strcmp(*args, "-nonce")) 204 add_nonce = 2; 205 else if (!strcmp(*args, "-no_nonce")) 206 add_nonce = 0; 207 else if (!strcmp(*args, "-resp_no_certs")) 208 rflags |= OCSP_NOCERTS; 209 else if (!strcmp(*args, "-resp_key_id")) 210 rflags |= OCSP_RESPID_KEY; 211 else if (!strcmp(*args, "-no_certs")) 212 sign_flags |= OCSP_NOCERTS; 213 else if (!strcmp(*args, "-no_signature_verify")) 214 verify_flags |= OCSP_NOSIGS; 215 else if (!strcmp(*args, "-no_cert_verify")) 216 verify_flags |= OCSP_NOVERIFY; 217 else if (!strcmp(*args, "-no_chain")) 218 verify_flags |= OCSP_NOCHAIN; 219 else if (!strcmp(*args, "-no_cert_checks")) 220 verify_flags |= OCSP_NOCHECKS; 221 else if (!strcmp(*args, "-no_explicit")) 222 verify_flags |= OCSP_NOEXPLICIT; 223 else if (!strcmp(*args, "-trust_other")) 224 verify_flags |= OCSP_TRUSTOTHER; 225 else if (!strcmp(*args, "-no_intern")) 226 verify_flags |= OCSP_NOINTERN; 227 else if (!strcmp(*args, "-text")) { 228 req_text = 1; 229 resp_text = 1; 230 } else if (!strcmp(*args, "-req_text")) 231 req_text = 1; 232 else if (!strcmp(*args, "-resp_text")) 233 resp_text = 1; 234 else if (!strcmp(*args, "-reqin")) { 235 if (args[1]) { 236 args++; 237 reqin = *args; 238 } else 239 badarg = 1; 240 } else if (!strcmp(*args, "-respin")) { 241 if (args[1]) { 242 args++; 243 respin = *args; 244 } else 245 badarg = 1; 246 } else if (!strcmp(*args, "-signer")) { 247 if (args[1]) { 248 args++; 249 signfile = *args; 250 } else 251 badarg = 1; 252 } else if (!strcmp(*args, "-VAfile")) { 253 if (args[1]) { 254 args++; 255 verify_certfile = *args; 256 verify_flags |= OCSP_TRUSTOTHER; 257 } else 258 badarg = 1; 259 } else if (!strcmp(*args, "-sign_other")) { 260 if (args[1]) { 261 args++; 262 sign_certfile = *args; 263 } else 264 badarg = 1; 265 } else if (!strcmp(*args, "-verify_other")) { 266 if (args[1]) { 267 args++; 268 verify_certfile = *args; 269 } else 270 badarg = 1; 271 } else if (!strcmp(*args, "-CAfile")) { 272 if (args[1]) { 273 args++; 274 CAfile = *args; 275 } else 276 badarg = 1; 277 } else if (!strcmp(*args, "-CApath")) { 278 if (args[1]) { 279 args++; 280 CApath = *args; 281 } else 282 badarg = 1; 283 } else if (!strcmp(*args, "-validity_period")) { 284 if (args[1]) { 285 args++; 286 nsec = atol(*args); 287 if (nsec < 0) { 288 BIO_printf(bio_err, 289 "Illegal validity period %s\n", *args); 290 badarg = 1; 291 } 292 } else 293 badarg = 1; 294 } else if (!strcmp(*args, "-status_age")) { 295 if (args[1]) { 296 args++; 297 maxage = atol(*args); 298 if (maxage < 0) { 299 BIO_printf(bio_err, "Illegal validity age %s\n", *args); 300 badarg = 1; 301 } 302 } else 303 badarg = 1; 304 } else if (!strcmp(*args, "-signkey")) { 305 if (args[1]) { 306 args++; 307 keyfile = *args; 308 } else 309 badarg = 1; 310 } else if (!strcmp(*args, "-reqout")) { 311 if (args[1]) { 312 args++; 313 reqout = *args; 314 } else 315 badarg = 1; 316 } else if (!strcmp(*args, "-respout")) { 317 if (args[1]) { 318 args++; 319 respout = *args; 320 } else 321 badarg = 1; 322 } else if (!strcmp(*args, "-path")) { 323 if (args[1]) { 324 args++; 325 path = *args; 326 } else 327 badarg = 1; 328 } else if (!strcmp(*args, "-issuer")) { 329 if (args[1]) { 330 args++; 331 X509_free(issuer); 332 issuer = load_cert(bio_err, *args, FORMAT_PEM, 333 NULL, e, "issuer certificate"); 334 if (!issuer) 335 goto end; 336 } else 337 badarg = 1; 338 } else if (!strcmp(*args, "-cert")) { 339 if (args[1]) { 340 args++; 341 X509_free(cert); 342 cert = load_cert(bio_err, *args, FORMAT_PEM, 343 NULL, e, "certificate"); 344 if (!cert) 345 goto end; 346 if (!add_ocsp_cert(&req, cert, issuer, ids)) 347 goto end; 348 if (!sk_push(reqnames, *args)) 349 goto end; 350 } else 351 badarg = 1; 352 } else if (!strcmp(*args, "-serial")) { 353 if (args[1]) { 354 args++; 355 if (!add_ocsp_serial(&req, *args, issuer, ids)) 356 goto end; 357 if (!sk_push(reqnames, *args)) 358 goto end; 359 } else 360 badarg = 1; 361 } else if (!strcmp(*args, "-index")) { 362 if (args[1]) { 363 args++; 364 ridx_filename = *args; 365 } else 366 badarg = 1; 367 } else if (!strcmp(*args, "-CA")) { 368 if (args[1]) { 369 args++; 370 rca_filename = *args; 371 } else 372 badarg = 1; 373 } else if (!strcmp(*args, "-nmin")) { 374 if (args[1]) { 375 args++; 376 nmin = atol(*args); 377 if (nmin < 0) { 378 BIO_printf(bio_err, "Illegal update period %s\n", *args); 379 badarg = 1; 380 } 381 } 382 if (ndays == -1) 383 ndays = 0; 384 else 385 badarg = 1; 386 } else if (!strcmp(*args, "-nrequest")) { 387 if (args[1]) { 388 args++; 389 accept_count = atol(*args); 390 if (accept_count < 0) { 391 BIO_printf(bio_err, "Illegal accept count %s\n", *args); 392 badarg = 1; 393 } 394 } else 395 badarg = 1; 396 } else if (!strcmp(*args, "-ndays")) { 397 if (args[1]) { 398 args++; 399 ndays = atol(*args); 400 if (ndays < 0) { 401 BIO_printf(bio_err, "Illegal update period %s\n", *args); 402 badarg = 1; 403 } 404 } else 405 badarg = 1; 406 } else if (!strcmp(*args, "-rsigner")) { 407 if (args[1]) { 408 args++; 409 rsignfile = *args; 410 } else 411 badarg = 1; 412 } else if (!strcmp(*args, "-rkey")) { 413 if (args[1]) { 414 args++; 415 rkeyfile = *args; 416 } else 417 badarg = 1; 418 } else if (!strcmp(*args, "-rother")) { 419 if (args[1]) { 420 args++; 421 rcertfile = *args; 422 } else 423 badarg = 1; 424 } else 425 badarg = 1; 426 args++; 427 } 428 429 /* Have we anything to do? */ 430 if (!req && !reqin && !respin && !(port && ridx_filename)) 431 badarg = 1; 432 433 if (badarg) { 434 BIO_printf(bio_err, "OCSP utility\n"); 435 BIO_printf(bio_err, "Usage ocsp [options]\n"); 436 BIO_printf(bio_err, "where options are\n"); 437 BIO_printf(bio_err, "-out file output filename\n"); 438 BIO_printf(bio_err, "-issuer file issuer certificate\n"); 439 BIO_printf(bio_err, "-cert file certificate to check\n"); 440 BIO_printf(bio_err, "-serial n serial number to check\n"); 441 BIO_printf(bio_err, 442 "-signer file certificate to sign OCSP request with\n"); 443 BIO_printf(bio_err, 444 "-signkey file private key to sign OCSP request with\n"); 445 BIO_printf(bio_err, 446 "-sign_other file additional certificates to include in signed request\n"); 447 BIO_printf(bio_err, 448 "-no_certs don't include any certificates in signed request\n"); 449 BIO_printf(bio_err, 450 "-req_text print text form of request\n"); 451 BIO_printf(bio_err, 452 "-resp_text print text form of response\n"); 453 BIO_printf(bio_err, 454 "-text print text form of request and response\n"); 455 BIO_printf(bio_err, 456 "-reqout file write DER encoded OCSP request to \"file\"\n"); 457 BIO_printf(bio_err, 458 "-respout file write DER encoded OCSP reponse to \"file\"\n"); 459 BIO_printf(bio_err, 460 "-reqin file read DER encoded OCSP request from \"file\"\n"); 461 BIO_printf(bio_err, 462 "-respin file read DER encoded OCSP reponse from \"file\"\n"); 463 BIO_printf(bio_err, "-nonce add OCSP nonce to request\n"); 464 BIO_printf(bio_err, 465 "-no_nonce don't add OCSP nonce to request\n"); 466 BIO_printf(bio_err, "-url URL OCSP responder URL\n"); 467 BIO_printf(bio_err, 468 "-host host:n send OCSP request to host on port n\n"); 469 BIO_printf(bio_err, 470 "-path path to use in OCSP request\n"); 471 BIO_printf(bio_err, 472 "-CApath dir trusted certificates directory\n"); 473 BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); 474 BIO_printf(bio_err, 475 "-VAfile file validator certificates file\n"); 476 BIO_printf(bio_err, 477 "-validity_period n maximum validity discrepancy in seconds\n"); 478 BIO_printf(bio_err, 479 "-status_age n maximum status age in seconds\n"); 480 BIO_printf(bio_err, 481 "-noverify don't verify response at all\n"); 482 BIO_printf(bio_err, 483 "-verify_other file additional certificates to search for signer\n"); 484 BIO_printf(bio_err, 485 "-trust_other don't verify additional certificates\n"); 486 BIO_printf(bio_err, 487 "-no_intern don't search certificates contained in response for signer\n"); 488 BIO_printf(bio_err, 489 "-no_signature_verify don't check signature on response\n"); 490 BIO_printf(bio_err, 491 "-no_cert_verify don't check signing certificate\n"); 492 BIO_printf(bio_err, 493 "-no_chain don't chain verify response\n"); 494 BIO_printf(bio_err, 495 "-no_cert_checks don't do additional checks on signing certificate\n"); 496 BIO_printf(bio_err, "-port num port to run responder on\n"); 497 BIO_printf(bio_err, 498 "-index file certificate status index file\n"); 499 BIO_printf(bio_err, "-CA file CA certificate\n"); 500 BIO_printf(bio_err, 501 "-rsigner file responder certificate to sign responses with\n"); 502 BIO_printf(bio_err, 503 "-rkey file responder key to sign responses with\n"); 504 BIO_printf(bio_err, 505 "-rother file other certificates to include in response\n"); 506 BIO_printf(bio_err, 507 "-resp_no_certs don't include any certificates in response\n"); 508 BIO_printf(bio_err, 509 "-nmin n number of minutes before next update\n"); 510 BIO_printf(bio_err, 511 "-ndays n number of days before next update\n"); 512 BIO_printf(bio_err, 513 "-resp_key_id identify reponse by signing certificate key ID\n"); 514 BIO_printf(bio_err, 515 "-nrequest n number of requests to accept (default unlimited)\n"); 516 goto end; 517 } 518 519 if (outfile) 520 out = BIO_new_file(outfile, "w"); 521 else 522 out = BIO_new_fp(stdout, BIO_NOCLOSE); 523 524 if (!out) { 525 BIO_printf(bio_err, "Error opening output file\n"); 526 goto end; 527 } 528 529 if (!req && (add_nonce != 2)) 530 add_nonce = 0; 531 532 if (!req && reqin) { 533 derbio = BIO_new_file(reqin, "rb"); 534 if (!derbio) { 535 BIO_printf(bio_err, "Error Opening OCSP request file\n"); 536 goto end; 537 } 538 req = d2i_OCSP_REQUEST_bio(derbio, NULL); 539 BIO_free(derbio); 540 if (!req) { 541 BIO_printf(bio_err, "Error reading OCSP request\n"); 542 goto end; 543 } 544 } 545 546 if (!req && port) { 547 acbio = init_responder(port); 548 if (!acbio) 549 goto end; 550 } 551 552 if (rsignfile && !rdb) { 553 if (!rkeyfile) 554 rkeyfile = rsignfile; 555 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM, 556 NULL, e, "responder certificate"); 557 if (!rsigner) { 558 BIO_printf(bio_err, "Error loading responder certificate\n"); 559 goto end; 560 } 561 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM, 562 NULL, e, "CA certificate"); 563 if (rcertfile) { 564 rother = load_certs(bio_err, rcertfile, FORMAT_PEM, 565 NULL, e, "responder other certificates"); 566 if (!rother) 567 goto end; 568 } 569 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL, 570 "responder private key"); 571 if (!rkey) 572 goto end; 573 } 574 if (acbio) 575 BIO_printf(bio_err, "Waiting for OCSP client connections...\n"); 576 577 redo_accept: 578 579 if (acbio) { 580 if (!do_responder(&req, &cbio, acbio, port)) 581 goto end; 582 if (!req) { 583 resp = 584 OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, 585 NULL); 586 send_ocsp_response(cbio, resp); 587 goto done_resp; 588 } 589 } 590 591 if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) { 592 BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); 593 goto end; 594 } 595 596 if (req && add_nonce) 597 OCSP_request_add1_nonce(req, NULL, -1); 598 599 if (signfile) { 600 if (!keyfile) 601 keyfile = signfile; 602 signer = load_cert(bio_err, signfile, FORMAT_PEM, 603 NULL, e, "signer certificate"); 604 if (!signer) { 605 BIO_printf(bio_err, "Error loading signer certificate\n"); 606 goto end; 607 } 608 if (sign_certfile) { 609 sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM, 610 NULL, e, "signer certificates"); 611 if (!sign_other) 612 goto end; 613 } 614 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL, 615 "signer private key"); 616 if (!key) 617 goto end; 618 if (!OCSP_request_sign 619 (req, signer, key, EVP_sha1(), sign_other, sign_flags)) { 620 BIO_printf(bio_err, "Error signing OCSP request\n"); 621 goto end; 622 } 623 } 624 625 if (req_text && req) 626 OCSP_REQUEST_print(out, req, 0); 627 628 if (reqout) { 629 derbio = BIO_new_file(reqout, "wb"); 630 if (!derbio) { 631 BIO_printf(bio_err, "Error opening file %s\n", reqout); 632 goto end; 633 } 634 i2d_OCSP_REQUEST_bio(derbio, req); 635 BIO_free(derbio); 636 } 637 638 if (ridx_filename && (!rkey || !rsigner || !rca_cert)) { 639 BIO_printf(bio_err, 640 "Need a responder certificate, key and CA for this operation!\n"); 641 goto end; 642 } 643 644 if (ridx_filename && !rdb) { 645 rdb = load_index(ridx_filename, NULL); 646 if (!rdb) 647 goto end; 648 if (!index_index(rdb)) 649 goto end; 650 } 651 652 if (rdb) { 653 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, 654 rother, rflags, nmin, ndays); 655 if (cbio) 656 send_ocsp_response(cbio, resp); 657 } else if (host) { 658# ifndef OPENSSL_NO_SOCK 659 resp = process_responder(bio_err, req, host, path, 660 port, use_ssl, req_timeout); 661 if (!resp) 662 goto end; 663# else 664 BIO_printf(bio_err, 665 "Error creating connect BIO - sockets not supported.\n"); 666 goto end; 667# endif 668 } else if (respin) { 669 derbio = BIO_new_file(respin, "rb"); 670 if (!derbio) { 671 BIO_printf(bio_err, "Error Opening OCSP response file\n"); 672 goto end; 673 } 674 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); 675 BIO_free(derbio); 676 if (!resp) { 677 BIO_printf(bio_err, "Error reading OCSP response\n"); 678 goto end; 679 } 680 681 } else { 682 ret = 0; 683 goto end; 684 } 685 686 done_resp: 687 688 if (respout) { 689 derbio = BIO_new_file(respout, "wb"); 690 if (!derbio) { 691 BIO_printf(bio_err, "Error opening file %s\n", respout); 692 goto end; 693 } 694 i2d_OCSP_RESPONSE_bio(derbio, resp); 695 BIO_free(derbio); 696 } 697 698 i = OCSP_response_status(resp); 699 700 if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) { 701 BIO_printf(out, "Responder Error: %s (%d)\n", 702 OCSP_response_status_str(i), i); 703 if (ignore_err) 704 goto redo_accept; 705 ret = 0; 706 goto end; 707 } 708 709 if (resp_text) 710 OCSP_RESPONSE_print(out, resp, 0); 711 712 /* If running as responder don't verify our own response */ 713 if (cbio) { 714 if (accept_count > 0) 715 accept_count--; 716 /* Redo if more connections needed */ 717 if (accept_count) { 718 BIO_free_all(cbio); 719 cbio = NULL; 720 OCSP_REQUEST_free(req); 721 req = NULL; 722 OCSP_RESPONSE_free(resp); 723 resp = NULL; 724 goto redo_accept; 725 } 726 goto end; 727 } 728 729 if (!store) 730 store = setup_verify(bio_err, CAfile, CApath); 731 if (!store) 732 goto end; 733 if (verify_certfile) { 734 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM, 735 NULL, e, "validator certificate"); 736 if (!verify_other) 737 goto end; 738 } 739 740 bs = OCSP_response_get1_basic(resp); 741 742 if (!bs) { 743 BIO_printf(bio_err, "Error parsing response\n"); 744 goto end; 745 } 746 747 if (!noverify) { 748 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) { 749 if (i == -1) 750 BIO_printf(bio_err, "WARNING: no nonce in response\n"); 751 else { 752 BIO_printf(bio_err, "Nonce Verify error\n"); 753 goto end; 754 } 755 } 756 757 i = OCSP_basic_verify(bs, verify_other, store, verify_flags); 758 if (i < 0) 759 i = OCSP_basic_verify(bs, NULL, store, 0); 760 761 if (i <= 0) { 762 BIO_printf(bio_err, "Response Verify Failure\n"); 763 ERR_print_errors(bio_err); 764 } else 765 BIO_printf(bio_err, "Response verify OK\n"); 766 767 } 768 769 if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage)) 770 goto end; 771 772 ret = 0; 773 774 end: 775 ERR_print_errors(bio_err); 776 X509_free(signer); 777 X509_STORE_free(store); 778 EVP_PKEY_free(key); 779 EVP_PKEY_free(rkey); 780 X509_free(issuer); 781 X509_free(cert); 782 X509_free(rsigner); 783 X509_free(rca_cert); 784 free_index(rdb); 785 BIO_free_all(cbio); 786 BIO_free_all(acbio); 787 BIO_free(out); 788 OCSP_REQUEST_free(req); 789 OCSP_RESPONSE_free(resp); 790 OCSP_BASICRESP_free(bs); 791 sk_free(reqnames); 792 sk_OCSP_CERTID_free(ids); 793 sk_X509_pop_free(sign_other, X509_free); 794 sk_X509_pop_free(verify_other, X509_free); 795 796 if (thost) 797 OPENSSL_free(thost); 798 if (tport) 799 OPENSSL_free(tport); 800 if (tpath) 801 OPENSSL_free(tpath); 802 803 OPENSSL_EXIT(ret); 804} 805 806static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer, 807 STACK_OF(OCSP_CERTID) *ids) 808{ 809 OCSP_CERTID *id; 810 if (!issuer) { 811 BIO_printf(bio_err, "No issuer certificate specified\n"); 812 return 0; 813 } 814 if (!*req) 815 *req = OCSP_REQUEST_new(); 816 if (!*req) 817 goto err; 818 id = OCSP_cert_to_id(NULL, cert, issuer); 819 if (!id || !sk_OCSP_CERTID_push(ids, id)) 820 goto err; 821 if (!OCSP_request_add0_id(*req, id)) 822 goto err; 823 return 1; 824 825 err: 826 BIO_printf(bio_err, "Error Creating OCSP request\n"); 827 return 0; 828} 829 830static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer, 831 STACK_OF(OCSP_CERTID) *ids) 832{ 833 OCSP_CERTID *id; 834 X509_NAME *iname; 835 ASN1_BIT_STRING *ikey; 836 ASN1_INTEGER *sno; 837 if (!issuer) { 838 BIO_printf(bio_err, "No issuer certificate specified\n"); 839 return 0; 840 } 841 if (!*req) 842 *req = OCSP_REQUEST_new(); 843 if (!*req) 844 goto err; 845 iname = X509_get_subject_name(issuer); 846 ikey = X509_get0_pubkey_bitstr(issuer); 847 sno = s2i_ASN1_INTEGER(NULL, serial); 848 if (!sno) { 849 BIO_printf(bio_err, "Error converting serial number %s\n", serial); 850 return 0; 851 } 852 id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno); 853 ASN1_INTEGER_free(sno); 854 if (!id || !sk_OCSP_CERTID_push(ids, id)) 855 goto err; 856 if (!OCSP_request_add0_id(*req, id)) 857 goto err; 858 return 1; 859 860 err: 861 BIO_printf(bio_err, "Error Creating OCSP request\n"); 862 return 0; 863} 864 865static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, 866 STACK * names, STACK_OF(OCSP_CERTID) *ids, 867 long nsec, long maxage) 868{ 869 OCSP_CERTID *id; 870 char *name; 871 int i; 872 873 int status, reason; 874 875 ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; 876 877 if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids)) 878 return 1; 879 880 for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) { 881 id = sk_OCSP_CERTID_value(ids, i); 882 name = sk_value(names, i); 883 BIO_printf(out, "%s: ", name); 884 885 if (!OCSP_resp_find_status(bs, id, &status, &reason, 886 &rev, &thisupd, &nextupd)) { 887 BIO_puts(out, "ERROR: No Status found.\n"); 888 continue; 889 } 890 891 /* 892 * Check validity: if invalid write to output BIO so we know which 893 * response this refers to. 894 */ 895 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) { 896 BIO_puts(out, "WARNING: Status times invalid.\n"); 897 ERR_print_errors(out); 898 } 899 BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); 900 901 BIO_puts(out, "\tThis Update: "); 902 ASN1_GENERALIZEDTIME_print(out, thisupd); 903 BIO_puts(out, "\n"); 904 905 if (nextupd) { 906 BIO_puts(out, "\tNext Update: "); 907 ASN1_GENERALIZEDTIME_print(out, nextupd); 908 BIO_puts(out, "\n"); 909 } 910 911 if (status != V_OCSP_CERTSTATUS_REVOKED) 912 continue; 913 914 if (reason != -1) 915 BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason)); 916 917 BIO_puts(out, "\tRevocation Time: "); 918 ASN1_GENERALIZEDTIME_print(out, rev); 919 BIO_puts(out, "\n"); 920 } 921 922 return 1; 923} 924 925static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, 926 CA_DB *db, X509 *ca, X509 *rcert, 927 EVP_PKEY *rkey, STACK_OF(X509) *rother, 928 unsigned long flags, int nmin, int ndays) 929{ 930 ASN1_TIME *thisupd = NULL, *nextupd = NULL; 931 OCSP_CERTID *cid, *ca_id = NULL; 932 OCSP_BASICRESP *bs = NULL; 933 int i, id_count, ret = 1; 934 935 id_count = OCSP_request_onereq_count(req); 936 937 if (id_count <= 0) { 938 *resp = 939 OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); 940 goto end; 941 } 942 943 ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca); 944 945 bs = OCSP_BASICRESP_new(); 946 thisupd = X509_gmtime_adj(NULL, 0); 947 if (ndays != -1) 948 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24); 949 950 /* Examine each certificate id in the request */ 951 for (i = 0; i < id_count; i++) { 952 OCSP_ONEREQ *one; 953 ASN1_INTEGER *serial; 954 char **inf; 955 one = OCSP_request_onereq_get0(req, i); 956 cid = OCSP_onereq_get0_id(one); 957 /* Is this request about our CA? */ 958 if (OCSP_id_issuer_cmp(ca_id, cid)) { 959 OCSP_basic_add1_status(bs, cid, 960 V_OCSP_CERTSTATUS_UNKNOWN, 961 0, NULL, thisupd, nextupd); 962 continue; 963 } 964 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); 965 inf = lookup_serial(db, serial); 966 if (!inf) 967 OCSP_basic_add1_status(bs, cid, 968 V_OCSP_CERTSTATUS_UNKNOWN, 969 0, NULL, thisupd, nextupd); 970 else if (inf[DB_type][0] == DB_TYPE_VAL) 971 OCSP_basic_add1_status(bs, cid, 972 V_OCSP_CERTSTATUS_GOOD, 973 0, NULL, thisupd, nextupd); 974 else if (inf[DB_type][0] == DB_TYPE_REV) { 975 ASN1_OBJECT *inst = NULL; 976 ASN1_TIME *revtm = NULL; 977 ASN1_GENERALIZEDTIME *invtm = NULL; 978 OCSP_SINGLERESP *single; 979 int reason = -1; 980 unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); 981 single = OCSP_basic_add1_status(bs, cid, 982 V_OCSP_CERTSTATUS_REVOKED, 983 reason, revtm, thisupd, nextupd); 984 if (invtm) 985 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, 986 invtm, 0, 0); 987 else if (inst) 988 OCSP_SINGLERESP_add1_ext_i2d(single, 989 NID_hold_instruction_code, inst, 990 0, 0); 991 ASN1_OBJECT_free(inst); 992 ASN1_TIME_free(revtm); 993 ASN1_GENERALIZEDTIME_free(invtm); 994 } 995 } 996 997 OCSP_copy_nonce(bs, req); 998 999 OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags); 1000 1001 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); 1002 1003 end: 1004 ASN1_TIME_free(thisupd); 1005 ASN1_TIME_free(nextupd); 1006 OCSP_CERTID_free(ca_id); 1007 OCSP_BASICRESP_free(bs); 1008 return ret; 1009 1010} 1011 1012static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) 1013{ 1014 int i; 1015 BIGNUM *bn = NULL; 1016 char *itmp, *row[DB_NUMBER], **rrow; 1017 for (i = 0; i < DB_NUMBER; i++) 1018 row[i] = NULL; 1019 bn = ASN1_INTEGER_to_BN(ser, NULL); 1020 OPENSSL_assert(bn); /* FIXME: should report an error at this 1021 * point and abort */ 1022 if (BN_is_zero(bn)) 1023 itmp = BUF_strdup("00"); 1024 else 1025 itmp = BN_bn2hex(bn); 1026 row[DB_serial] = itmp; 1027 BN_free(bn); 1028 rrow = TXT_DB_get_by_index(db->db, DB_serial, row); 1029 OPENSSL_free(itmp); 1030 return rrow; 1031} 1032 1033/* Quick and dirty OCSP server: read in and parse input request */ 1034 1035static BIO *init_responder(char *port) 1036{ 1037 BIO *acbio = NULL, *bufbio = NULL; 1038 bufbio = BIO_new(BIO_f_buffer()); 1039 if (!bufbio) 1040 goto err; 1041# ifndef OPENSSL_NO_SOCK 1042 acbio = BIO_new_accept(port); 1043# else 1044 BIO_printf(bio_err, 1045 "Error setting up accept BIO - sockets not supported.\n"); 1046# endif 1047 if (!acbio) 1048 goto err; 1049 BIO_set_accept_bios(acbio, bufbio); 1050 bufbio = NULL; 1051 1052 if (BIO_do_accept(acbio) <= 0) { 1053 BIO_printf(bio_err, "Error setting up accept BIO\n"); 1054 ERR_print_errors(bio_err); 1055 goto err; 1056 } 1057 1058 return acbio; 1059 1060 err: 1061 BIO_free_all(acbio); 1062 BIO_free(bufbio); 1063 return NULL; 1064} 1065 1066static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, 1067 char *port) 1068{ 1069 int have_post = 0, len; 1070 OCSP_REQUEST *req = NULL; 1071 char inbuf[1024]; 1072 BIO *cbio = NULL; 1073 1074 if (BIO_do_accept(acbio) <= 0) { 1075 BIO_printf(bio_err, "Error accepting connection\n"); 1076 ERR_print_errors(bio_err); 1077 return 0; 1078 } 1079 1080 cbio = BIO_pop(acbio); 1081 *pcbio = cbio; 1082 1083 for (;;) { 1084 len = BIO_gets(cbio, inbuf, sizeof inbuf); 1085 if (len <= 0) 1086 return 1; 1087 /* Look for "POST" signalling start of query */ 1088 if (!have_post) { 1089 if (strncmp(inbuf, "POST", 4)) { 1090 BIO_printf(bio_err, "Invalid request\n"); 1091 return 1; 1092 } 1093 have_post = 1; 1094 } 1095 /* Look for end of headers */ 1096 if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) 1097 break; 1098 } 1099 1100 /* Try to read OCSP request */ 1101 1102 req = d2i_OCSP_REQUEST_bio(cbio, NULL); 1103 1104 if (!req) { 1105 BIO_printf(bio_err, "Error parsing OCSP request\n"); 1106 ERR_print_errors(bio_err); 1107 } 1108 1109 *preq = req; 1110 1111 return 1; 1112 1113} 1114 1115static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp) 1116{ 1117 char http_resp[] = 1118 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n" 1119 "Content-Length: %d\r\n\r\n"; 1120 if (!cbio) 1121 return 0; 1122 BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL)); 1123 i2d_OCSP_RESPONSE_bio(cbio, resp); 1124 (void)BIO_flush(cbio); 1125 return 1; 1126} 1127 1128static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path, 1129 OCSP_REQUEST *req, int req_timeout) 1130{ 1131 int fd; 1132 int rv; 1133 OCSP_REQ_CTX *ctx = NULL; 1134 OCSP_RESPONSE *rsp = NULL; 1135 fd_set confds; 1136 struct timeval tv; 1137 1138 if (req_timeout != -1) 1139 BIO_set_nbio(cbio, 1); 1140 1141 rv = BIO_do_connect(cbio); 1142 1143 if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio))) { 1144 BIO_puts(err, "Error connecting BIO\n"); 1145 return NULL; 1146 } 1147 1148 if (req_timeout == -1) 1149 return OCSP_sendreq_bio(cbio, path, req); 1150 1151 if (BIO_get_fd(cbio, &fd) <= 0) { 1152 BIO_puts(err, "Can't get connection fd\n"); 1153 goto err; 1154 } 1155 1156 if (rv <= 0) { 1157 FD_ZERO(&confds); 1158 openssl_fdset(fd, &confds); 1159 tv.tv_usec = 0; 1160 tv.tv_sec = req_timeout; 1161 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); 1162 if (rv == 0) { 1163 BIO_puts(err, "Timeout on connect\n"); 1164 return NULL; 1165 } 1166 } 1167 1168 ctx = OCSP_sendreq_new(cbio, path, req, -1); 1169 if (!ctx) 1170 return NULL; 1171 1172 for (;;) { 1173 rv = OCSP_sendreq_nbio(&rsp, ctx); 1174 if (rv != -1) 1175 break; 1176 FD_ZERO(&confds); 1177 openssl_fdset(fd, &confds); 1178 tv.tv_usec = 0; 1179 tv.tv_sec = req_timeout; 1180 if (BIO_should_read(cbio)) 1181 rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv); 1182 else if (BIO_should_write(cbio)) 1183 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); 1184 else { 1185 BIO_puts(err, "Unexpected retry condition\n"); 1186 goto err; 1187 } 1188 if (rv == 0) { 1189 BIO_puts(err, "Timeout on request\n"); 1190 break; 1191 } 1192 if (rv == -1) { 1193 BIO_puts(err, "Select error\n"); 1194 break; 1195 } 1196 1197 } 1198 err: 1199 if (ctx) 1200 OCSP_REQ_CTX_free(ctx); 1201 1202 return rsp; 1203} 1204 1205OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req, 1206 char *host, char *path, char *port, 1207 int use_ssl, int req_timeout) 1208{ 1209 BIO *cbio = NULL; 1210 SSL_CTX *ctx = NULL; 1211 OCSP_RESPONSE *resp = NULL; 1212 cbio = BIO_new_connect(host); 1213 if (!cbio) { 1214 BIO_printf(err, "Error creating connect BIO\n"); 1215 goto end; 1216 } 1217 if (port) 1218 BIO_set_conn_port(cbio, port); 1219 if (use_ssl == 1) { 1220 BIO *sbio; 1221# if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 1222 ctx = SSL_CTX_new(SSLv23_client_method()); 1223# elif !defined(OPENSSL_NO_SSL3) 1224 ctx = SSL_CTX_new(SSLv3_client_method()); 1225# elif !defined(OPENSSL_NO_SSL2) 1226 ctx = SSL_CTX_new(SSLv2_client_method()); 1227# else 1228 BIO_printf(err, "SSL is disabled\n"); 1229 goto end; 1230# endif 1231 if (ctx == NULL) { 1232 BIO_printf(err, "Error creating SSL context.\n"); 1233 goto end; 1234 } 1235 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); 1236 sbio = BIO_new_ssl(ctx, 1); 1237 cbio = BIO_push(sbio, cbio); 1238 } 1239 resp = query_responder(err, cbio, path, req, req_timeout); 1240 if (!resp) 1241 BIO_printf(bio_err, "Error querying OCSP responder\n"); 1242 end: 1243 if (ctx) 1244 SSL_CTX_free(ctx); 1245 if (cbio) 1246 BIO_free_all(cbio); 1247 return resp; 1248} 1249 1250#endif 1251