apps/ocsp.c

   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 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
  90                                 OCSP_REQUEST *req, int req_timeout);
  91
  92 #undef PROG
  93 #define PROG ocsp_main
  94
  95 int MAIN(int, char **);
  96
  97 int MAIN(int argc, char **argv)
  98         {
  99         ENGINE *e = NULL;
 100         char **args;
 101         char *host = NULL, *port = NULL, *path = "/";
 102         char *reqin = NULL, *respin = NULL;
 103         char *reqout = NULL, *respout = NULL;
 104         char *signfile = NULL, *keyfile = NULL;
 105         char *rsignfile = NULL, *rkeyfile = NULL;
 106         char *outfile = NULL;
 107         int add_nonce = 1, noverify = 0, use_ssl = -1;
 108         OCSP_REQUEST *req = NULL;
 109         OCSP_RESPONSE *resp = NULL;
 110         OCSP_BASICRESP *bs = NULL;
 111         X509 *issuer = NULL, *cert = NULL;
 112         X509 *signer = NULL, *rsigner = NULL;
 113         EVP_PKEY *key = NULL, *rkey = NULL;
 114         BIO *acbio = NULL, *cbio = NULL;
 115         BIO *derbio = NULL;
 116         BIO *out = NULL;
 117         int req_timeout = -1;
 118         int req_text = 0, resp_text = 0;
 119         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 120         char *CAfile = NULL, *CApath = NULL;
 121         X509_STORE *store = NULL;
 122         SSL_CTX *ctx = NULL;
 123         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 124         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 125         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 126         int ret = 1;
 127         int accept_count = -1;
 128         int badarg = 0;
 129         int i;
 130         int ignore_err = 0;
 131         STACK *reqnames = NULL;
 132         STACK_OF(OCSP_CERTID) *ids = NULL;
 133
 134         X509 *rca_cert = NULL;
 135         char *ridx_filename = NULL;
 136         char *rca_filename = NULL;
 137         CA_DB *rdb = NULL;
 138         int nmin = 0, ndays = -1;
 139
 140         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 141
 142         if (!load_config(bio_err, NULL))
 143                 goto end;
 144         SSL_load_error_strings();
 145         args = argv + 1;
 146         reqnames = sk_new_null();
 147         ids = sk_OCSP_CERTID_new_null();
 148         while (!badarg && *args && *args[0] == '-')
 149                 {
 150                 if (!strcmp(*args, "-out"))
 151                         {
 152                         if (args[1])
 153                                 {
 154                                 args++;
 155                                 outfile = *args;
 156                                 }
 157                         else badarg = 1;
 158                         }
 159                 else if (!strcmp(*args, "-timeout"))
 160                         {
 161                         if (args[1])
 162                                 {
 163                                 args++;
 164                                 req_timeout = atol(*args);
 165                                 if (req_timeout < 0)
 166                                         {
 167                                         BIO_printf(bio_err,
 168                                                 "Illegal timeout value %s\n",
 169                                                 *args);
 170                                         badarg = 1;
 171                                         }
 172                                 }
 173                         else badarg = 1;
 174                         }
 175                 else if (!strcmp(*args, "-url"))
 176                         {
 177                         if (args[1])
 178                                 {
 179                                 args++;
 180                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 181                                         {
 182                                         BIO_printf(bio_err, "Error parsing URL\n");
 183                                         badarg = 1;
 184                                         }
 185                                 }
 186                         else badarg = 1;
 187                         }
 188                 else if (!strcmp(*args, "-host"))
 189                         {
 190                         if (args[1])
 191                                 {
 192                                 args++;
 193                                 host = *args;
 194                                 }
 195                         else badarg = 1;
 196                         }
 197                 else if (!strcmp(*args, "-port"))
 198                         {
 199                         if (args[1])
 200                                 {
 201                                 args++;
 202                                 port = *args;
 203                                 }
 204                         else badarg = 1;
 205                         }
 206                 else if (!strcmp(*args, "-ignore_err"))
 207                         ignore_err = 1;
 208                 else if (!strcmp(*args, "-noverify"))
 209                         noverify = 1;
 210                 else if (!strcmp(*args, "-nonce"))
 211                         add_nonce = 2;
 212                 else if (!strcmp(*args, "-no_nonce"))
 213                         add_nonce = 0;
 214                 else if (!strcmp(*args, "-resp_no_certs"))
 215                         rflags |= OCSP_NOCERTS;
 216                 else if (!strcmp(*args, "-resp_key_id"))
 217                         rflags |= OCSP_RESPID_KEY;
 218                 else if (!strcmp(*args, "-no_certs"))
 219                         sign_flags |= OCSP_NOCERTS;
 220                 else if (!strcmp(*args, "-no_signature_verify"))
 221                         verify_flags |= OCSP_NOSIGS;
 222                 else if (!strcmp(*args, "-no_cert_verify"))
 223                         verify_flags |= OCSP_NOVERIFY;
 224                 else if (!strcmp(*args, "-no_chain"))
 225                         verify_flags |= OCSP_NOCHAIN;
 226                 else if (!strcmp(*args, "-no_cert_checks"))
 227                         verify_flags |= OCSP_NOCHECKS;
 228                 else if (!strcmp(*args, "-no_explicit"))
 229                         verify_flags |= OCSP_NOEXPLICIT;
 230                 else if (!strcmp(*args, "-trust_other"))
 231                         verify_flags |= OCSP_TRUSTOTHER;
 232                 else if (!strcmp(*args, "-no_intern"))
 233                         verify_flags |= OCSP_NOINTERN;
 234                 else if (!strcmp(*args, "-text"))
 235                         {
 236                         req_text = 1;
 237                         resp_text = 1;
 238                         }
 239                 else if (!strcmp(*args, "-req_text"))
 240                         req_text = 1;
 241                 else if (!strcmp(*args, "-resp_text"))
 242                         resp_text = 1;
 243                 else if (!strcmp(*args, "-reqin"))
 244                         {
 245                         if (args[1])
 246                                 {
 247                                 args++;
 248                                 reqin = *args;
 249                                 }
 250                         else badarg = 1;
 251                         }
 252                 else if (!strcmp(*args, "-respin"))
 253                         {
 254                         if (args[1])
 255                                 {
 256                                 args++;
 257                                 respin = *args;
 258                                 }
 259                         else badarg = 1;
 260                         }
 261                 else if (!strcmp(*args, "-signer"))
 262                         {
 263                         if (args[1])
 264                                 {
 265                                 args++;
 266                                 signfile = *args;
 267                                 }
 268                         else badarg = 1;
 269                         }
 270                 else if (!strcmp (*args, "-VAfile"))
 271                         {
 272                         if (args[1])
 273                                 {
 274                                 args++;
 275                                 verify_certfile = *args;
 276                                 verify_flags |= OCSP_TRUSTOTHER;
 277                                 }
 278                         else badarg = 1;
 279                         }
 280                 else if (!strcmp(*args, "-sign_other"))
 281                         {
 282                         if (args[1])
 283                                 {
 284                                 args++;
 285                                 sign_certfile = *args;
 286                                 }
 287                         else badarg = 1;
 288                         }
 289                 else if (!strcmp(*args, "-verify_other"))
 290                         {
 291                         if (args[1])
 292                                 {
 293                                 args++;
 294                                 verify_certfile = *args;
 295                                 }
 296                         else badarg = 1;
 297                         }
 298                 else if (!strcmp (*args, "-CAfile"))
 299                         {
 300                         if (args[1])
 301                                 {
 302                                 args++;
 303                                 CAfile = *args;
 304                                 }
 305                         else badarg = 1;
 306                         }
 307                 else if (!strcmp (*args, "-CApath"))
 308                         {
 309                         if (args[1])
 310                                 {
 311                                 args++;
 312                                 CApath = *args;
 313                                 }
 314                         else badarg = 1;
 315                         }
 316                 else if (!strcmp (*args, "-validity_period"))
 317                         {
 318                         if (args[1])
 319                                 {
 320                                 args++;
 321                                 nsec = atol(*args);
 322                                 if (nsec < 0)
 323                                         {
 324                                         BIO_printf(bio_err,
 325                                                 "Illegal validity period %s\n",
 326                                                 *args);
 327                                         badarg = 1;
 328                                         }
 329                                 }
 330                         else badarg = 1;
 331                         }
 332                 else if (!strcmp (*args, "-status_age"))
 333                         {
 334                         if (args[1])
 335                                 {
 336                                 args++;
 337                                 maxage = atol(*args);
 338                                 if (maxage < 0)
 339                                         {
 340                                         BIO_printf(bio_err,
 341                                                 "Illegal validity age %s\n",
 342                                                 *args);
 343                                         badarg = 1;
 344                                         }
 345                                 }
 346                         else badarg = 1;
 347                         }
 348                  else if (!strcmp(*args, "-signkey"))
 349                         {
 350                         if (args[1])
 351                                 {
 352                                 args++;
 353                                 keyfile = *args;
 354                                 }
 355                         else badarg = 1;
 356                         }
 357                 else if (!strcmp(*args, "-reqout"))
 358                         {
 359                         if (args[1])
 360                                 {
 361                                 args++;
 362                                 reqout = *args;
 363                                 }
 364                         else badarg = 1;
 365                         }
 366                 else if (!strcmp(*args, "-respout"))
 367                         {
 368                         if (args[1])
 369                                 {
 370                                 args++;
 371                                 respout = *args;
 372                                 }
 373                         else badarg = 1;
 374                         }
 375                  else if (!strcmp(*args, "-path"))
 376                         {
 377                         if (args[1])
 378                                 {
 379                                 args++;
 380                                 path = *args;
 381                                 }
 382                         else badarg = 1;
 383                         }
 384                 else if (!strcmp(*args, "-issuer"))
 385                         {
 386                         if (args[1])
 387                                 {
 388                                 args++;
 389                                 X509_free(issuer);
 390                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 391                                         NULL, e, "issuer certificate");
 392                                 if(!issuer) goto end;
 393                                 }
 394                         else badarg = 1;
 395                         }
 396                 else if (!strcmp (*args, "-cert"))
 397                         {
 398                         if (args[1])
 399                                 {
 400                                 args++;
 401                                 X509_free(cert);
 402                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 403                                         NULL, e, "certificate");
 404                                 if(!cert) goto end;
 405                                 if(!add_ocsp_cert(&req, cert, issuer, ids))
 406                                         goto end;
 407                                 if(!sk_push(reqnames, *args))
 408                                         goto end;
 409                                 }
 410                         else badarg = 1;
 411                         }
 412                 else if (!strcmp(*args, "-serial"))
 413                         {
 414                         if (args[1])
 415                                 {
 416                                 args++;
 417                                 if(!add_ocsp_serial(&req, *args, issuer, ids))
 418                                         goto end;
 419                                 if(!sk_push(reqnames, *args))
 420                                         goto end;
 421                                 }
 422                         else badarg = 1;
 423                         }
 424                 else if (!strcmp(*args, "-index"))
 425                         {
 426                         if (args[1])
 427                                 {
 428                                 args++;
 429                                 ridx_filename = *args;
 430                                 }
 431                         else badarg = 1;
 432                         }
 433                 else if (!strcmp(*args, "-CA"))
 434                         {
 435                         if (args[1])
 436                                 {
 437                                 args++;
 438                                 rca_filename = *args;
 439                                 }
 440                         else badarg = 1;
 441                         }
 442                 else if (!strcmp (*args, "-nmin"))
 443                         {
 444                         if (args[1])
 445                                 {
 446                                 args++;
 447                                 nmin = atol(*args);
 448                                 if (nmin < 0)
 449                                         {
 450                                         BIO_printf(bio_err,
 451                                                 "Illegal update period %s\n",
 452                                                 *args);
 453                                         badarg = 1;
 454                                         }
 455                                 }
 456                                 if (ndays == -1)
 457                                         ndays = 0;
 458                         else badarg = 1;
 459                         }
 460                 else if (!strcmp (*args, "-nrequest"))
 461                         {
 462                         if (args[1])
 463                                 {
 464                                 args++;
 465                                 accept_count = atol(*args);
 466                                 if (accept_count < 0)
 467                                         {
 468                                         BIO_printf(bio_err,
 469                                                 "Illegal accept count %s\n",
 470                                                 *args);
 471                                         badarg = 1;
 472                                         }
 473                                 }
 474                         else badarg = 1;
 475                         }
 476                 else if (!strcmp (*args, "-ndays"))
 477                         {
 478                         if (args[1])
 479                                 {
 480                                 args++;
 481                                 ndays = atol(*args);
 482                                 if (ndays < 0)
 483                                         {
 484                                         BIO_printf(bio_err,
 485                                                 "Illegal update period %s\n",
 486                                                 *args);
 487                                         badarg = 1;
 488                                         }
 489                                 }
 490                         else badarg = 1;
 491                         }
 492                 else if (!strcmp(*args, "-rsigner"))
 493                         {
 494                         if (args[1])
 495                                 {
 496                                 args++;
 497                                 rsignfile = *args;
 498                                 }
 499                         else badarg = 1;
 500                         }
 501                 else if (!strcmp(*args, "-rkey"))
 502                         {
 503                         if (args[1])
 504                                 {
 505                                 args++;
 506                                 rkeyfile = *args;
 507                                 }
 508                         else badarg = 1;
 509                         }
 510                 else if (!strcmp(*args, "-rother"))
 511                         {
 512                         if (args[1])
 513                                 {
 514                                 args++;
 515                                 rcertfile = *args;
 516                                 }
 517                         else badarg = 1;
 518                         }
 519                 else badarg = 1;
 520                 args++;
 521                 }
 522
 523         /* Have we anything to do? */
 524         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 525
 526         if (badarg)
 527                 {
 528                 BIO_printf (bio_err, "OCSP utility\n");
 529                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 530                 BIO_printf (bio_err, "where options are\n");
 531                 BIO_printf (bio_err, "-out file          output filename\n");
 532                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 533                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 534                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 535                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 536                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 537                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 538                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 539                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 540                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 541                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 542                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 543                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 544                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 545                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 546                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 547                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 548                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 549                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 550                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 551                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 552                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 553                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 554                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 555                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 556                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 557                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 558                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 559                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 560                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 561                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 562                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 563                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 564                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 565                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 566                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 567                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 568                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 569                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 570                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 571                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 572                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 573                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 574                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 575                 goto end;
 576                 }
 577
 578         if(outfile) out = BIO_new_file(outfile, "w");
 579         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 580
 581         if(!out)
 582                 {
 583                 BIO_printf(bio_err, "Error opening output file\n");
 584                 goto end;
 585                 }
 586
 587         if (!req && (add_nonce != 2)) add_nonce = 0;
 588
 589         if (!req && reqin)
 590                 {
 591                 derbio = BIO_new_file(reqin, "rb");
 592                 if (!derbio)
 593                         {
 594                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 595                         goto end;
 596                         }
 597                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 598                 BIO_free(derbio);
 599                 if(!req)
 600                         {
 601                         BIO_printf(bio_err, "Error reading OCSP request\n");
 602                         goto end;
 603                         }
 604                 }
 605
 606         if (!req && port)
 607                 {
 608                 acbio = init_responder(port);
 609                 if (!acbio)
 610                         goto end;
 611                 }
 612
 613         if (rsignfile && !rdb)
 614                 {
 615                 if (!rkeyfile) rkeyfile = rsignfile;
 616                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 617                         NULL, e, "responder certificate");
 618                 if (!rsigner)
 619                         {
 620                         BIO_printf(bio_err, "Error loading responder certificate\n");
 621                         goto end;
 622                         }
 623                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 624                         NULL, e, "CA certificate");
 625                 if (rcertfile)
 626                         {
 627                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 628                                 NULL, e, "responder other certificates");
 629                         if (!rother) goto end;
 630                         }
 631                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 632                         "responder private key");
 633                 if (!rkey)
 634                         goto end;
 635                 }
 636         if(acbio)
 637                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 638
 639         redo_accept:
 640
 641         if (acbio)
 642                 {
 643                 if (!do_responder(&req, &cbio, acbio, port))
 644                         goto end;
 645                 if (!req)
 646                         {
 647                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 648                         send_ocsp_response(cbio, resp);
 649                         goto done_resp;
 650                         }
 651                 }
 652
 653         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 654                 {
 655                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 656                 goto end;
 657                 }
 658
 659         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 660
 661         if (signfile)
 662                 {
 663                 if (!keyfile) keyfile = signfile;
 664                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 665                         NULL, e, "signer certificate");
 666                 if (!signer)
 667                         {
 668                         BIO_printf(bio_err, "Error loading signer certificate\n");
 669                         goto end;
 670                         }
 671                 if (sign_certfile)
 672                         {
 673                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 674                                 NULL, e, "signer certificates");
 675                         if (!sign_other) goto end;
 676                         }
 677                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 678                         "signer private key");
 679                 if (!key)
 680                         goto end;
 681                 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
 682                         {
 683                         BIO_printf(bio_err, "Error signing OCSP request\n");
 684                         goto end;
 685                         }
 686                 }
 687
 688         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 689
 690         if (reqout)
 691                 {
 692                 derbio = BIO_new_file(reqout, "wb");
 693                 if(!derbio)
 694                         {
 695                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 696                         goto end;
 697                         }
 698                 i2d_OCSP_REQUEST_bio(derbio, req);
 699                 BIO_free(derbio);
 700                 }
 701
 702         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 703                 {
 704                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 705                 goto end;
 706                 }
 707
 708         if (ridx_filename && !rdb)
 709                 {
 710                 rdb = load_index(ridx_filename, NULL);
 711                 if (!rdb) goto end;
 712                 if (!index_index(rdb)) goto end;
 713                 }
 714
 715         if (rdb)
 716                 {
 717                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 718                 if (cbio)
 719                         send_ocsp_response(cbio, resp);
 720                 }
 721         else if (host)
 722                 {
 723 #ifndef OPENSSL_NO_SOCK
 724                 cbio = BIO_new_connect(host);
 725 #else
 726                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 727                 goto end;
 728 #endif
 729                 if (!cbio)
 730                         {
 731                         BIO_printf(bio_err, "Error creating connect BIO\n");
 732                         goto end;
 733                         }
 734                 if (port) BIO_set_conn_port(cbio, port);
 735                 if (use_ssl == 1)
 736                         {
 737                         BIO *sbio;
 738 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 739                         ctx = SSL_CTX_new(SSLv23_client_method());
 740 #elif !defined(OPENSSL_NO_SSL3)
 741                         ctx = SSL_CTX_new(SSLv3_client_method());
 742 #elif !defined(OPENSSL_NO_SSL2)
 743                         ctx = SSL_CTX_new(SSLv2_client_method());
 744 #else
 745                         BIO_printf(bio_err, "SSL is disabled\n");
 746                         goto end;
 747 #endif
 748                         SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
 749                         sbio = BIO_new_ssl(ctx, 1);
 750                         cbio = BIO_push(sbio, cbio);
 751                         }
 752
 753                 resp = query_responder(bio_err, cbio, path, req, req_timeout);
 754                 BIO_free_all(cbio);
 755                 cbio = NULL;
 756                 if (!resp)
 757                         {
 758                         BIO_printf(bio_err, "Error querying OCSP responsder\n");
 759                         goto end;
 760                         }
 761                 }
 762         else if (respin)
 763                 {
 764                 derbio = BIO_new_file(respin, "rb");
 765                 if (!derbio)
 766                         {
 767                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 768                         goto end;
 769                         }
 770                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 771                 BIO_free(derbio);
 772                 if(!resp)
 773                         {
 774                         BIO_printf(bio_err, "Error reading OCSP response\n");
 775                         goto end;
 776                         }
 777
 778                 }
 779         else
 780                 {
 781                 ret = 0;
 782                 goto end;
 783                 }
 784
 785         done_resp:
 786
 787         if (respout)
 788                 {
 789                 derbio = BIO_new_file(respout, "wb");
 790                 if(!derbio)
 791                         {
 792                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 793                         goto end;
 794                         }
 795                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 796                 BIO_free(derbio);
 797                 }
 798
 799         i = OCSP_response_status(resp);
 800
 801         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 802                 {
 803                 BIO_printf(out, "Responder Error: %s (%d)\n",
 804                                 OCSP_response_status_str(i), i);
 805                 if (ignore_err)
 806                         goto redo_accept;
 807                 ret = 0;
 808                 goto end;
 809                 }
 810
 811         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 812
 813         /* If running as responder don't verify our own response */
 814         if (cbio)
 815                 {
 816                 if (accept_count > 0)
 817                         accept_count--;
 818                 /* Redo if more connections needed */
 819                 if (accept_count)
 820                         {
 821                         BIO_free_all(cbio);
 822                         cbio = NULL;
 823                         OCSP_REQUEST_free(req);
 824                         req = NULL;
 825                         OCSP_RESPONSE_free(resp);
 826                         resp = NULL;
 827                         goto redo_accept;
 828                         }
 829                 goto end;
 830                 }
 831
 832         if (!store)
 833                 store = setup_verify(bio_err, CAfile, CApath);
 834         if (!store)
 835                 goto end;
 836         if (verify_certfile)
 837                 {
 838                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 839                         NULL, e, "validator certificate");
 840                 if (!verify_other) goto end;
 841                 }
 842
 843         bs = OCSP_response_get1_basic(resp);
 844
 845         if (!bs)
 846                 {
 847                 BIO_printf(bio_err, "Error parsing response\n");
 848                 goto end;
 849                 }
 850
 851         if (!noverify)
 852                 {
 853                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 854                         {
 855                         if (i == -1)
 856                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 857                         else
 858                                 {
 859                                 BIO_printf(bio_err, "Nonce Verify error\n");
 860                                 goto end;
 861                                 }
 862                         }
 863
 864                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 865                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 866
 867                 if(i <= 0)
 868                         {
 869                         BIO_printf(bio_err, "Response Verify Failure\n");
 870                         ERR_print_errors(bio_err);
 871                         }
 872                 else
 873                         BIO_printf(bio_err, "Response verify OK\n");
 874
 875                 }
 876
 877         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 878                 goto end;
 879
 880         ret = 0;
 881
 882 end:
 883         ERR_print_errors(bio_err);
 884         X509_free(signer);
 885         X509_STORE_free(store);
 886         EVP_PKEY_free(key);
 887         EVP_PKEY_free(rkey);
 888         X509_free(issuer);
 889         X509_free(cert);
 890         X509_free(rsigner);
 891         X509_free(rca_cert);
 892         free_index(rdb);
 893         BIO_free_all(cbio);
 894         BIO_free_all(acbio);
 895         BIO_free(out);
 896         OCSP_REQUEST_free(req);
 897         OCSP_RESPONSE_free(resp);
 898         OCSP_BASICRESP_free(bs);
 899         sk_free(reqnames);
 900         sk_OCSP_CERTID_free(ids);
 901         sk_X509_pop_free(sign_other, X509_free);
 902         sk_X509_pop_free(verify_other, X509_free);
 903
 904         if (use_ssl != -1)
 905                 {
 906                 OPENSSL_free(host);
 907                 OPENSSL_free(port);
 908                 OPENSSL_free(path);
 909                 SSL_CTX_free(ctx);
 910                 }
 911
 912         OPENSSL_EXIT(ret);
 913 }
 914
 915 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
 916                                 STACK_OF(OCSP_CERTID) *ids)
 917         {
 918         OCSP_CERTID *id;
 919         if(!issuer)
 920                 {
 921                 BIO_printf(bio_err, "No issuer certificate specified\n");
 922                 return 0;
 923                 }
 924         if(!*req) *req = OCSP_REQUEST_new();
 925         if(!*req) goto err;
 926         id = OCSP_cert_to_id(NULL, cert, issuer);
 927         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 928         if(!OCSP_request_add0_id(*req, id)) goto err;
 929         return 1;
 930
 931         err:
 932         BIO_printf(bio_err, "Error Creating OCSP request\n");
 933         return 0;
 934         }
 935
 936 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
 937                                 STACK_OF(OCSP_CERTID) *ids)
 938         {
 939         OCSP_CERTID *id;
 940         X509_NAME *iname;
 941         ASN1_BIT_STRING *ikey;
 942         ASN1_INTEGER *sno;
 943         if(!issuer)
 944                 {
 945                 BIO_printf(bio_err, "No issuer certificate specified\n");
 946                 return 0;
 947                 }
 948         if(!*req) *req = OCSP_REQUEST_new();
 949         if(!*req) goto err;
 950         iname = X509_get_subject_name(issuer);
 951         ikey = X509_get0_pubkey_bitstr(issuer);
 952         sno = s2i_ASN1_INTEGER(NULL, serial);
 953         if(!sno)
 954                 {
 955                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 956                 return 0;
 957                 }
 958         id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
 959         ASN1_INTEGER_free(sno);
 960         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 961         if(!OCSP_request_add0_id(*req, id)) goto err;
 962         return 1;
 963
 964         err:
 965         BIO_printf(bio_err, "Error Creating OCSP request\n");
 966         return 0;
 967         }
 968
 969 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 970                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 971                                         long nsec, long maxage)
 972         {
 973         OCSP_CERTID *id;
 974         char *name;
 975         int i;
 976
 977         int status, reason;
 978
 979         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 980
 981         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 982                 return 1;
 983
 984         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 985                 {
 986                 id = sk_OCSP_CERTID_value(ids, i);
 987                 name = sk_value(names, i);
 988                 BIO_printf(out, "%s: ", name);
 989
 990                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 991                                         &rev, &thisupd, &nextupd))
 992                         {
 993                         BIO_puts(out, "ERROR: No Status found.\n");
 994                         continue;
 995                         }
 996
 997                 /* Check validity: if invalid write to output BIO so we
 998                  * know which response this refers to.
 999                  */
1000                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1001                         {
1002                         BIO_puts(out, "WARNING: Status times invalid.\n");
1003                         ERR_print_errors(out);
1004                         }
1005                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1006
1007                 BIO_puts(out, "\tThis Update: ");
1008                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1009                 BIO_puts(out, "\n");
1010
1011                 if(nextupd)
1012                         {
1013                         BIO_puts(out, "\tNext Update: ");
1014                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1015                         BIO_puts(out, "\n");
1016                         }
1017
1018                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1019                         continue;
1020
1021                 if (reason != -1)
1022                         BIO_printf(out, "\tReason: %s\n",
1023                                 OCSP_crl_reason_str(reason));
1024
1025                 BIO_puts(out, "\tRevocation Time: ");
1026                 ASN1_GENERALIZEDTIME_print(out, rev);
1027                 BIO_puts(out, "\n");
1028                 }
1029
1030         return 1;
1031         }
1032
1033
1034 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1035                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1036                         STACK_OF(X509) *rother, unsigned long flags,
1037                         int nmin, int ndays)
1038         {
1039         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1040         OCSP_CERTID *cid, *ca_id = NULL;
1041         OCSP_BASICRESP *bs = NULL;
1042         int i, id_count, ret = 1;
1043
1044
1045         id_count = OCSP_request_onereq_count(req);
1046
1047         if (id_count <= 0)
1048                 {
1049                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1050                 goto end;
1051                 }
1052
1053         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1054
1055         bs = OCSP_BASICRESP_new();
1056         thisupd = X509_gmtime_adj(NULL, 0);
1057         if (ndays != -1)
1058                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1059
1060         /* Examine each certificate id in the request */
1061         for (i = 0; i < id_count; i++)
1062                 {
1063                 OCSP_ONEREQ *one;
1064                 ASN1_INTEGER *serial;
1065                 char **inf;
1066                 one = OCSP_request_onereq_get0(req, i);
1067                 cid = OCSP_onereq_get0_id(one);
1068                 /* Is this request about our CA? */
1069                 if (OCSP_id_issuer_cmp(ca_id, cid))
1070                         {
1071                         OCSP_basic_add1_status(bs, cid,
1072                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1073                                                 0, NULL,
1074                                                 thisupd, nextupd);
1075                         continue;
1076                         }
1077                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1078                 inf = lookup_serial(db, serial);
1079                 if (!inf)
1080                         OCSP_basic_add1_status(bs, cid,
1081                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1082                                                 0, NULL,
1083                                                 thisupd, nextupd);
1084                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1085                         OCSP_basic_add1_status(bs, cid,
1086                                                 V_OCSP_CERTSTATUS_GOOD,
1087                                                 0, NULL,
1088                                                 thisupd, nextupd);
1089                 else if (inf[DB_type][0] == DB_TYPE_REV)
1090                         {
1091                         ASN1_OBJECT *inst = NULL;
1092                         ASN1_TIME *revtm = NULL;
1093                         ASN1_GENERALIZEDTIME *invtm = NULL;
1094                         OCSP_SINGLERESP *single;
1095                         int reason = -1;
1096                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1097                         single = OCSP_basic_add1_status(bs, cid,
1098                                                 V_OCSP_CERTSTATUS_REVOKED,
1099                                                 reason, revtm,
1100                                                 thisupd, nextupd);
1101                         if (invtm)
1102                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1103                         else if (inst)
1104                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1105                         ASN1_OBJECT_free(inst);
1106                         ASN1_TIME_free(revtm);
1107                         ASN1_GENERALIZEDTIME_free(invtm);
1108                         }
1109                 }
1110
1111         OCSP_copy_nonce(bs, req);
1112
1113         OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);
1114
1115         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1116
1117         end:
1118         ASN1_TIME_free(thisupd);
1119         ASN1_TIME_free(nextupd);
1120         OCSP_CERTID_free(ca_id);
1121         OCSP_BASICRESP_free(bs);
1122         return ret;
1123
1124         }
1125
1126 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1127         {
1128         int i;
1129         BIGNUM *bn = NULL;
1130         char *itmp, *row[DB_NUMBER],**rrow;
1131         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1132         bn = ASN1_INTEGER_to_BN(ser,NULL);
1133         if (BN_is_zero(bn))
1134                 itmp = BUF_strdup("00");
1135         else
1136                 itmp = BN_bn2hex(bn);
1137         row[DB_serial] = itmp;
1138         BN_free(bn);
1139         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1140         OPENSSL_free(itmp);
1141         return rrow;
1142         }
1143
1144 /* Quick and dirty OCSP server: read in and parse input request */
1145
1146 static BIO *init_responder(char *port)
1147         {
1148         BIO *acbio = NULL, *bufbio = NULL;
1149         bufbio = BIO_new(BIO_f_buffer());
1150         if (!bufbio)
1151                 goto err;
1152 #ifndef OPENSSL_NO_SOCK
1153         acbio = BIO_new_accept(port);
1154 #else
1155         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1156 #endif
1157         if (!acbio)
1158                 goto err;
1159         BIO_set_accept_bios(acbio, bufbio);
1160         bufbio = NULL;
1161
1162         if (BIO_do_accept(acbio) <= 0)
1163                 {
1164                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1165                         ERR_print_errors(bio_err);
1166                         goto err;
1167                 }
1168
1169         return acbio;
1170
1171         err:
1172         BIO_free_all(acbio);
1173         BIO_free(bufbio);
1174         return NULL;
1175         }
1176
1177 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1178         {
1179         int have_post = 0, len;
1180         OCSP_REQUEST *req = NULL;
1181         char inbuf[1024];
1182         BIO *cbio = NULL;
1183
1184         if (BIO_do_accept(acbio) <= 0)
1185                 {
1186                         BIO_printf(bio_err, "Error accepting connection\n");
1187                         ERR_print_errors(bio_err);
1188                         return 0;
1189                 }
1190
1191         cbio = BIO_pop(acbio);
1192         *pcbio = cbio;
1193
1194         for(;;)
1195                 {
1196                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1197                 if (len <= 0)
1198                         return 1;
1199                 /* Look for "POST" signalling start of query */
1200                 if (!have_post)
1201                         {
1202                         if(strncmp(inbuf, "POST", 4))
1203                                 {
1204                                 BIO_printf(bio_err, "Invalid request\n");
1205                                 return 1;
1206                                 }
1207                         have_post = 1;
1208                         }
1209                 /* Look for end of headers */
1210                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1211                         break;
1212                 }
1213
1214         /* Try to read OCSP request */
1215
1216         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1217
1218         if (!req)
1219                 {
1220                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1221                 ERR_print_errors(bio_err);
1222                 }
1223
1224         *preq = req;
1225
1226         return 1;
1227
1228         }
1229
1230 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1231         {
1232         char http_resp[] =
1233                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1234                 "Content-Length: %d\r\n\r\n";
1235         if (!cbio)
1236                 return 0;
1237         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1238         i2d_OCSP_RESPONSE_bio(cbio, resp);
1239         BIO_flush(cbio);
1240         return 1;
1241         }
1242
1243 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1244                                 OCSP_REQUEST *req, int req_timeout)
1245         {
1246         int fd;
1247         int rv;
1248         OCSP_REQ_CTX *ctx = NULL;
1249         OCSP_RESPONSE *rsp = NULL;
1250         fd_set confds;
1251         struct timeval tv;
1252
1253         if (req_timeout != -1)
1254                 BIO_set_nbio(cbio, 1);
1255
1256         rv = BIO_do_connect(cbio);
1257
1258         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1259                 {
1260                 BIO_puts(err, "Error connecting BIO\n");
1261                 return NULL;
1262                 }
1263
1264         if (req_timeout == -1)
1265                 return OCSP_sendreq_bio(cbio, path, req);
1266
1267         if (BIO_get_fd(cbio, &fd) <= 0)
1268                 {
1269                 BIO_puts(err, "Can't get connection fd\n");
1270                 goto err;
1271                 }
1272
1273         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1274
1275         if (!ctx)
1276                 return NULL;
1277
1278         for (;;)
1279                 {
1280                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1281                 if (rv != -1)
1282                         break;
1283                 FD_ZERO(&confds);
1284                 FD_SET(fd, &confds);
1285                 tv.tv_usec = 0;
1286                 tv.tv_sec = req_timeout;
1287                 if (BIO_should_read(cbio) || BIO_should_io_special(cbio))
1288                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1289                 else if (BIO_should_write(cbio))
1290                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1291                 else
1292                         {
1293                         BIO_puts(err, "Unexpected retry condition\n");
1294                         goto err;
1295                         }
1296                 if (rv == 0)
1297                         {
1298                         BIO_puts(err, "Timeout on request\n");
1299                         break;
1300                         }
1301                 if (rv == -1)
1302                         {
1303                         BIO_puts(err, "Select error\n");
1304                         break;
1305                         }
1306
1307                 }
1308
1309         err:
1310
1311         OCSP_REQ_CTX_free(ctx);
1312
1313         return rsp;
1314         }
1315
1316 #endif