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 #define _XOPEN_SOURCE_EXTENDED  1 /* Or fd_set, select() and so on won't be
  63                                      declared properly on Compaq platforms
  64                                      (at least with DEC C).
  65                                   */
  66 #ifdef OPENSSL_SYS_VMS
  67 # include <time.h>
  68 #else
  69 # include <sys/time.h>
  70 # include <sys/select.h>
  71 #endif
  72 #include "apps.h"
  73 #include <openssl/pem.h>
  74 #include <openssl/ocsp.h>
  75 #include <openssl/err.h>
  76 #include <openssl/ssl.h>
  77 #include <openssl/bn.h>
  78
  79 /* Maximum leeway in validity period: default 5 minutes */
  80 #define MAX_VALIDITY_PERIOD     (5 * 60)
  81
  82 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
  83                                 STACK_OF(OCSP_CERTID) *ids);
  84 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
  85                                 STACK_OF(OCSP_CERTID) *ids);
  86 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  87                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  88                                 long nsec, long maxage);
  89
  90 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  91                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  92                         STACK_OF(X509) *rother, unsigned long flags,
  93                         int nmin, int ndays);
  94
  95 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
  96 static BIO *init_responder(char *port);
  97 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
  98 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
  99 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 100                                 OCSP_REQUEST *req, int req_timeout);
 101
 102 #undef PROG
 103 #define PROG ocsp_main
 104
 105 int MAIN(int, char **);
 106
 107 int MAIN(int argc, char **argv)
 108         {
 109         ENGINE *e = NULL;
 110         char **args;
 111         char *host = NULL, *port = NULL, *path = "/";
 112         char *reqin = NULL, *respin = NULL;
 113         char *reqout = NULL, *respout = NULL;
 114         char *signfile = NULL, *keyfile = NULL;
 115         char *rsignfile = NULL, *rkeyfile = NULL;
 116         char *outfile = NULL;
 117         int add_nonce = 1, noverify = 0, use_ssl = -1;
 118         OCSP_REQUEST *req = NULL;
 119         OCSP_RESPONSE *resp = NULL;
 120         OCSP_BASICRESP *bs = NULL;
 121         X509 *issuer = NULL, *cert = NULL;
 122         X509 *signer = NULL, *rsigner = NULL;
 123         EVP_PKEY *key = NULL, *rkey = NULL;
 124         BIO *acbio = NULL, *cbio = NULL;
 125         BIO *derbio = NULL;
 126         BIO *out = NULL;
 127         int req_timeout = -1;
 128         int req_text = 0, resp_text = 0;
 129         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 130         char *CAfile = NULL, *CApath = NULL;
 131         X509_STORE *store = NULL;
 132         SSL_CTX *ctx = NULL;
 133         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 134         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 135         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 136         int ret = 1;
 137         int accept_count = -1;
 138         int badarg = 0;
 139         int i;
 140         int ignore_err = 0;
 141         STACK *reqnames = NULL;
 142         STACK_OF(OCSP_CERTID) *ids = NULL;
 143
 144         X509 *rca_cert = NULL;
 145         char *ridx_filename = NULL;
 146         char *rca_filename = NULL;
 147         CA_DB *rdb = NULL;
 148         int nmin = 0, ndays = -1;
 149
 150         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 151
 152         if (!load_config(bio_err, NULL))
 153                 goto end;
 154         SSL_load_error_strings();
 155         OpenSSL_add_ssl_algorithms();
 156         args = argv + 1;
 157         reqnames = sk_new_null();
 158         ids = sk_OCSP_CERTID_new_null();
 159         while (!badarg && *args && *args[0] == '-')
 160                 {
 161                 if (!strcmp(*args, "-out"))
 162                         {
 163                         if (args[1])
 164                                 {
 165                                 args++;
 166                                 outfile = *args;
 167                                 }
 168                         else badarg = 1;
 169                         }
 170                 else if (!strcmp(*args, "-timeout"))
 171                         {
 172                         if (args[1])
 173                                 {
 174                                 args++;
 175                                 req_timeout = atol(*args);
 176                                 if (req_timeout < 0)
 177                                         {
 178                                         BIO_printf(bio_err,
 179                                                 "Illegal timeout value %s\n",
 180                                                 *args);
 181                                         badarg = 1;
 182                                         }
 183                                 }
 184                         else badarg = 1;
 185                         }
 186                 else if (!strcmp(*args, "-url"))
 187                         {
 188                         if (args[1])
 189                                 {
 190                                 args++;
 191                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 192                                         {
 193                                         BIO_printf(bio_err, "Error parsing URL\n");
 194                                         badarg = 1;
 195                                         }
 196                                 }
 197                         else badarg = 1;
 198                         }
 199                 else if (!strcmp(*args, "-host"))
 200                         {
 201                         if (args[1])
 202                                 {
 203                                 args++;
 204                                 host = *args;
 205                                 }
 206                         else badarg = 1;
 207                         }
 208                 else if (!strcmp(*args, "-port"))
 209                         {
 210                         if (args[1])
 211                                 {
 212                                 args++;
 213                                 port = *args;
 214                                 }
 215                         else badarg = 1;
 216                         }
 217                 else if (!strcmp(*args, "-ignore_err"))
 218                         ignore_err = 1;
 219                 else if (!strcmp(*args, "-noverify"))
 220                         noverify = 1;
 221                 else if (!strcmp(*args, "-nonce"))
 222                         add_nonce = 2;
 223                 else if (!strcmp(*args, "-no_nonce"))
 224                         add_nonce = 0;
 225                 else if (!strcmp(*args, "-resp_no_certs"))
 226                         rflags |= OCSP_NOCERTS;
 227                 else if (!strcmp(*args, "-resp_key_id"))
 228                         rflags |= OCSP_RESPID_KEY;
 229                 else if (!strcmp(*args, "-no_certs"))
 230                         sign_flags |= OCSP_NOCERTS;
 231                 else if (!strcmp(*args, "-no_signature_verify"))
 232                         verify_flags |= OCSP_NOSIGS;
 233                 else if (!strcmp(*args, "-no_cert_verify"))
 234                         verify_flags |= OCSP_NOVERIFY;
 235                 else if (!strcmp(*args, "-no_chain"))
 236                         verify_flags |= OCSP_NOCHAIN;
 237                 else if (!strcmp(*args, "-no_cert_checks"))
 238                         verify_flags |= OCSP_NOCHECKS;
 239                 else if (!strcmp(*args, "-no_explicit"))
 240                         verify_flags |= OCSP_NOEXPLICIT;
 241                 else if (!strcmp(*args, "-trust_other"))
 242                         verify_flags |= OCSP_TRUSTOTHER;
 243                 else if (!strcmp(*args, "-no_intern"))
 244                         verify_flags |= OCSP_NOINTERN;
 245                 else if (!strcmp(*args, "-text"))
 246                         {
 247                         req_text = 1;
 248                         resp_text = 1;
 249                         }
 250                 else if (!strcmp(*args, "-req_text"))
 251                         req_text = 1;
 252                 else if (!strcmp(*args, "-resp_text"))
 253                         resp_text = 1;
 254                 else if (!strcmp(*args, "-reqin"))
 255                         {
 256                         if (args[1])
 257                                 {
 258                                 args++;
 259                                 reqin = *args;
 260                                 }
 261                         else badarg = 1;
 262                         }
 263                 else if (!strcmp(*args, "-respin"))
 264                         {
 265                         if (args[1])
 266                                 {
 267                                 args++;
 268                                 respin = *args;
 269                                 }
 270                         else badarg = 1;
 271                         }
 272                 else if (!strcmp(*args, "-signer"))
 273                         {
 274                         if (args[1])
 275                                 {
 276                                 args++;
 277                                 signfile = *args;
 278                                 }
 279                         else badarg = 1;
 280                         }
 281                 else if (!strcmp (*args, "-VAfile"))
 282                         {
 283                         if (args[1])
 284                                 {
 285                                 args++;
 286                                 verify_certfile = *args;
 287                                 verify_flags |= OCSP_TRUSTOTHER;
 288                                 }
 289                         else badarg = 1;
 290                         }
 291                 else if (!strcmp(*args, "-sign_other"))
 292                         {
 293                         if (args[1])
 294                                 {
 295                                 args++;
 296                                 sign_certfile = *args;
 297                                 }
 298                         else badarg = 1;
 299                         }
 300                 else if (!strcmp(*args, "-verify_other"))
 301                         {
 302                         if (args[1])
 303                                 {
 304                                 args++;
 305                                 verify_certfile = *args;
 306                                 }
 307                         else badarg = 1;
 308                         }
 309                 else if (!strcmp (*args, "-CAfile"))
 310                         {
 311                         if (args[1])
 312                                 {
 313                                 args++;
 314                                 CAfile = *args;
 315                                 }
 316                         else badarg = 1;
 317                         }
 318                 else if (!strcmp (*args, "-CApath"))
 319                         {
 320                         if (args[1])
 321                                 {
 322                                 args++;
 323                                 CApath = *args;
 324                                 }
 325                         else badarg = 1;
 326                         }
 327                 else if (!strcmp (*args, "-validity_period"))
 328                         {
 329                         if (args[1])
 330                                 {
 331                                 args++;
 332                                 nsec = atol(*args);
 333                                 if (nsec < 0)
 334                                         {
 335                                         BIO_printf(bio_err,
 336                                                 "Illegal validity period %s\n",
 337                                                 *args);
 338                                         badarg = 1;
 339                                         }
 340                                 }
 341                         else badarg = 1;
 342                         }
 343                 else if (!strcmp (*args, "-status_age"))
 344                         {
 345                         if (args[1])
 346                                 {
 347                                 args++;
 348                                 maxage = atol(*args);
 349                                 if (maxage < 0)
 350                                         {
 351                                         BIO_printf(bio_err,
 352                                                 "Illegal validity age %s\n",
 353                                                 *args);
 354                                         badarg = 1;
 355                                         }
 356                                 }
 357                         else badarg = 1;
 358                         }
 359                  else if (!strcmp(*args, "-signkey"))
 360                         {
 361                         if (args[1])
 362                                 {
 363                                 args++;
 364                                 keyfile = *args;
 365                                 }
 366                         else badarg = 1;
 367                         }
 368                 else if (!strcmp(*args, "-reqout"))
 369                         {
 370                         if (args[1])
 371                                 {
 372                                 args++;
 373                                 reqout = *args;
 374                                 }
 375                         else badarg = 1;
 376                         }
 377                 else if (!strcmp(*args, "-respout"))
 378                         {
 379                         if (args[1])
 380                                 {
 381                                 args++;
 382                                 respout = *args;
 383                                 }
 384                         else badarg = 1;
 385                         }
 386                  else if (!strcmp(*args, "-path"))
 387                         {
 388                         if (args[1])
 389                                 {
 390                                 args++;
 391                                 path = *args;
 392                                 }
 393                         else badarg = 1;
 394                         }
 395                 else if (!strcmp(*args, "-issuer"))
 396                         {
 397                         if (args[1])
 398                                 {
 399                                 args++;
 400                                 X509_free(issuer);
 401                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 402                                         NULL, e, "issuer certificate");
 403                                 if(!issuer) goto end;
 404                                 }
 405                         else badarg = 1;
 406                         }
 407                 else if (!strcmp (*args, "-cert"))
 408                         {
 409                         if (args[1])
 410                                 {
 411                                 args++;
 412                                 X509_free(cert);
 413                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 414                                         NULL, e, "certificate");
 415                                 if(!cert) goto end;
 416                                 if(!add_ocsp_cert(&req, cert, issuer, ids))
 417                                         goto end;
 418                                 if(!sk_push(reqnames, *args))
 419                                         goto end;
 420                                 }
 421                         else badarg = 1;
 422                         }
 423                 else if (!strcmp(*args, "-serial"))
 424                         {
 425                         if (args[1])
 426                                 {
 427                                 args++;
 428                                 if(!add_ocsp_serial(&req, *args, issuer, ids))
 429                                         goto end;
 430                                 if(!sk_push(reqnames, *args))
 431                                         goto end;
 432                                 }
 433                         else badarg = 1;
 434                         }
 435                 else if (!strcmp(*args, "-index"))
 436                         {
 437                         if (args[1])
 438                                 {
 439                                 args++;
 440                                 ridx_filename = *args;
 441                                 }
 442                         else badarg = 1;
 443                         }
 444                 else if (!strcmp(*args, "-CA"))
 445                         {
 446                         if (args[1])
 447                                 {
 448                                 args++;
 449                                 rca_filename = *args;
 450                                 }
 451                         else badarg = 1;
 452                         }
 453                 else if (!strcmp (*args, "-nmin"))
 454                         {
 455                         if (args[1])
 456                                 {
 457                                 args++;
 458                                 nmin = atol(*args);
 459                                 if (nmin < 0)
 460                                         {
 461                                         BIO_printf(bio_err,
 462                                                 "Illegal update period %s\n",
 463                                                 *args);
 464                                         badarg = 1;
 465                                         }
 466                                 }
 467                                 if (ndays == -1)
 468                                         ndays = 0;
 469                         else badarg = 1;
 470                         }
 471                 else if (!strcmp (*args, "-nrequest"))
 472                         {
 473                         if (args[1])
 474                                 {
 475                                 args++;
 476                                 accept_count = atol(*args);
 477                                 if (accept_count < 0)
 478                                         {
 479                                         BIO_printf(bio_err,
 480                                                 "Illegal accept count %s\n",
 481                                                 *args);
 482                                         badarg = 1;
 483                                         }
 484                                 }
 485                         else badarg = 1;
 486                         }
 487                 else if (!strcmp (*args, "-ndays"))
 488                         {
 489                         if (args[1])
 490                                 {
 491                                 args++;
 492                                 ndays = atol(*args);
 493                                 if (ndays < 0)
 494                                         {
 495                                         BIO_printf(bio_err,
 496                                                 "Illegal update period %s\n",
 497                                                 *args);
 498                                         badarg = 1;
 499                                         }
 500                                 }
 501                         else badarg = 1;
 502                         }
 503                 else if (!strcmp(*args, "-rsigner"))
 504                         {
 505                         if (args[1])
 506                                 {
 507                                 args++;
 508                                 rsignfile = *args;
 509                                 }
 510                         else badarg = 1;
 511                         }
 512                 else if (!strcmp(*args, "-rkey"))
 513                         {
 514                         if (args[1])
 515                                 {
 516                                 args++;
 517                                 rkeyfile = *args;
 518                                 }
 519                         else badarg = 1;
 520                         }
 521                 else if (!strcmp(*args, "-rother"))
 522                         {
 523                         if (args[1])
 524                                 {
 525                                 args++;
 526                                 rcertfile = *args;
 527                                 }
 528                         else badarg = 1;
 529                         }
 530                 else badarg = 1;
 531                 args++;
 532                 }
 533
 534         /* Have we anything to do? */
 535         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 536
 537         if (badarg)
 538                 {
 539                 BIO_printf (bio_err, "OCSP utility\n");
 540                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 541                 BIO_printf (bio_err, "where options are\n");
 542                 BIO_printf (bio_err, "-out file          output filename\n");
 543                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 544                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 545                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 546                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 547                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 548                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 549                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 550                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 551                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 552                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 553                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 554                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 555                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 556                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 557                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 558                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 559                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 560                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 561                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 562                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 563                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 564                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 565                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 566                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 567                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 568                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 569                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 570                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 571                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 572                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 573                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 574                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 575                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 576                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 577                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 578                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 579                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 580                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 581                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 582                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 583                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 584                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 585                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 586                 goto end;
 587                 }
 588
 589         if(outfile) out = BIO_new_file(outfile, "w");
 590         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 591
 592         if(!out)
 593                 {
 594                 BIO_printf(bio_err, "Error opening output file\n");
 595                 goto end;
 596                 }
 597
 598         if (!req && (add_nonce != 2)) add_nonce = 0;
 599
 600         if (!req && reqin)
 601                 {
 602                 derbio = BIO_new_file(reqin, "rb");
 603                 if (!derbio)
 604                         {
 605                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 606                         goto end;
 607                         }
 608                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 609                 BIO_free(derbio);
 610                 if(!req)
 611                         {
 612                         BIO_printf(bio_err, "Error reading OCSP request\n");
 613                         goto end;
 614                         }
 615                 }
 616
 617         if (!req && port)
 618                 {
 619                 acbio = init_responder(port);
 620                 if (!acbio)
 621                         goto end;
 622                 }
 623
 624         if (rsignfile && !rdb)
 625                 {
 626                 if (!rkeyfile) rkeyfile = rsignfile;
 627                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 628                         NULL, e, "responder certificate");
 629                 if (!rsigner)
 630                         {
 631                         BIO_printf(bio_err, "Error loading responder certificate\n");
 632                         goto end;
 633                         }
 634                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 635                         NULL, e, "CA certificate");
 636                 if (rcertfile)
 637                         {
 638                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 639                                 NULL, e, "responder other certificates");
 640                         if (!rother) goto end;
 641                         }
 642                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 643                         "responder private key");
 644                 if (!rkey)
 645                         goto end;
 646                 }
 647         if(acbio)
 648                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 649
 650         redo_accept:
 651
 652         if (acbio)
 653                 {
 654                 if (!do_responder(&req, &cbio, acbio, port))
 655                         goto end;
 656                 if (!req)
 657                         {
 658                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 659                         send_ocsp_response(cbio, resp);
 660                         goto done_resp;
 661                         }
 662                 }
 663
 664         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 665                 {
 666                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 667                 goto end;
 668                 }
 669
 670         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 671
 672         if (signfile)
 673                 {
 674                 if (!keyfile) keyfile = signfile;
 675                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 676                         NULL, e, "signer certificate");
 677                 if (!signer)
 678                         {
 679                         BIO_printf(bio_err, "Error loading signer certificate\n");
 680                         goto end;
 681                         }
 682                 if (sign_certfile)
 683                         {
 684                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 685                                 NULL, e, "signer certificates");
 686                         if (!sign_other) goto end;
 687                         }
 688                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 689                         "signer private key");
 690                 if (!key)
 691                         goto end;
 692                 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
 693                         {
 694                         BIO_printf(bio_err, "Error signing OCSP request\n");
 695                         goto end;
 696                         }
 697                 }
 698
 699         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 700
 701         if (reqout)
 702                 {
 703                 derbio = BIO_new_file(reqout, "wb");
 704                 if(!derbio)
 705                         {
 706                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 707                         goto end;
 708                         }
 709                 i2d_OCSP_REQUEST_bio(derbio, req);
 710                 BIO_free(derbio);
 711                 }
 712
 713         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 714                 {
 715                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 716                 goto end;
 717                 }
 718
 719         if (ridx_filename && !rdb)
 720                 {
 721                 rdb = load_index(ridx_filename, NULL);
 722                 if (!rdb) goto end;
 723                 if (!index_index(rdb)) goto end;
 724                 }
 725
 726         if (rdb)
 727                 {
 728                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 729                 if (cbio)
 730                         send_ocsp_response(cbio, resp);
 731                 }
 732         else if (host)
 733                 {
 734 #ifndef OPENSSL_NO_SOCK
 735                 cbio = BIO_new_connect(host);
 736 #else
 737                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 738                 goto end;
 739 #endif
 740                 if (!cbio)
 741                         {
 742                         BIO_printf(bio_err, "Error creating connect BIO\n");
 743                         goto end;
 744                         }
 745                 if (port) BIO_set_conn_port(cbio, port);
 746                 if (use_ssl == 1)
 747                         {
 748                         BIO *sbio;
 749 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 750                         ctx = SSL_CTX_new(SSLv23_client_method());
 751 #elif !defined(OPENSSL_NO_SSL3)
 752                         ctx = SSL_CTX_new(SSLv3_client_method());
 753 #elif !defined(OPENSSL_NO_SSL2)
 754                         ctx = SSL_CTX_new(SSLv2_client_method());
 755 #else
 756                         BIO_printf(bio_err, "SSL is disabled\n");
 757                         goto end;
 758 #endif
 759                         if (ctx == NULL)
 760                                 {
 761                                 BIO_printf(bio_err, "Error creating SSL context.\n");
 762                                 goto end;
 763                                 }
 764                         SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
 765                         sbio = BIO_new_ssl(ctx, 1);
 766                         cbio = BIO_push(sbio, cbio);
 767                         }
 768
 769                 resp = query_responder(bio_err, cbio, path, req, req_timeout);
 770                 BIO_free_all(cbio);
 771                 cbio = NULL;
 772                 if (!resp)
 773                         {
 774                         BIO_printf(bio_err, "Error querying OCSP responsder\n");
 775                         goto end;
 776                         }
 777                 }
 778         else if (respin)
 779                 {
 780                 derbio = BIO_new_file(respin, "rb");
 781                 if (!derbio)
 782                         {
 783                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 784                         goto end;
 785                         }
 786                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 787                 BIO_free(derbio);
 788                 if(!resp)
 789                         {
 790                         BIO_printf(bio_err, "Error reading OCSP response\n");
 791                         goto end;
 792                         }
 793
 794                 }
 795         else
 796                 {
 797                 ret = 0;
 798                 goto end;
 799                 }
 800
 801         done_resp:
 802
 803         if (respout)
 804                 {
 805                 derbio = BIO_new_file(respout, "wb");
 806                 if(!derbio)
 807                         {
 808                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 809                         goto end;
 810                         }
 811                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 812                 BIO_free(derbio);
 813                 }
 814
 815         i = OCSP_response_status(resp);
 816
 817         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 818                 {
 819                 BIO_printf(out, "Responder Error: %s (%d)\n",
 820                                 OCSP_response_status_str(i), i);
 821                 if (ignore_err)
 822                         goto redo_accept;
 823                 ret = 0;
 824                 goto end;
 825                 }
 826
 827         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 828
 829         /* If running as responder don't verify our own response */
 830         if (cbio)
 831                 {
 832                 if (accept_count > 0)
 833                         accept_count--;
 834                 /* Redo if more connections needed */
 835                 if (accept_count)
 836                         {
 837                         BIO_free_all(cbio);
 838                         cbio = NULL;
 839                         OCSP_REQUEST_free(req);
 840                         req = NULL;
 841                         OCSP_RESPONSE_free(resp);
 842                         resp = NULL;
 843                         goto redo_accept;
 844                         }
 845                 goto end;
 846                 }
 847
 848         if (!store)
 849                 store = setup_verify(bio_err, CAfile, CApath);
 850         if (!store)
 851                 goto end;
 852         if (verify_certfile)
 853                 {
 854                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 855                         NULL, e, "validator certificate");
 856                 if (!verify_other) goto end;
 857                 }
 858
 859         bs = OCSP_response_get1_basic(resp);
 860
 861         if (!bs)
 862                 {
 863                 BIO_printf(bio_err, "Error parsing response\n");
 864                 goto end;
 865                 }
 866
 867         if (!noverify)
 868                 {
 869                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 870                         {
 871                         if (i == -1)
 872                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 873                         else
 874                                 {
 875                                 BIO_printf(bio_err, "Nonce Verify error\n");
 876                                 goto end;
 877                                 }
 878                         }
 879
 880                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 881                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 882
 883                 if(i <= 0)
 884                         {
 885                         BIO_printf(bio_err, "Response Verify Failure\n");
 886                         ERR_print_errors(bio_err);
 887                         }
 888                 else
 889                         BIO_printf(bio_err, "Response verify OK\n");
 890
 891                 }
 892
 893         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 894                 goto end;
 895
 896         ret = 0;
 897
 898 end:
 899         ERR_print_errors(bio_err);
 900         X509_free(signer);
 901         X509_STORE_free(store);
 902         EVP_PKEY_free(key);
 903         EVP_PKEY_free(rkey);
 904         X509_free(issuer);
 905         X509_free(cert);
 906         X509_free(rsigner);
 907         X509_free(rca_cert);
 908         free_index(rdb);
 909         BIO_free_all(cbio);
 910         BIO_free_all(acbio);
 911         BIO_free(out);
 912         OCSP_REQUEST_free(req);
 913         OCSP_RESPONSE_free(resp);
 914         OCSP_BASICRESP_free(bs);
 915         sk_free(reqnames);
 916         sk_OCSP_CERTID_free(ids);
 917         sk_X509_pop_free(sign_other, X509_free);
 918         sk_X509_pop_free(verify_other, X509_free);
 919
 920         if (use_ssl != -1)
 921                 {
 922                 OPENSSL_free(host);
 923                 OPENSSL_free(port);
 924                 OPENSSL_free(path);
 925                 SSL_CTX_free(ctx);
 926                 }
 927
 928         OPENSSL_EXIT(ret);
 929 }
 930
 931 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
 932                                 STACK_OF(OCSP_CERTID) *ids)
 933         {
 934         OCSP_CERTID *id;
 935         if(!issuer)
 936                 {
 937                 BIO_printf(bio_err, "No issuer certificate specified\n");
 938                 return 0;
 939                 }
 940         if(!*req) *req = OCSP_REQUEST_new();
 941         if(!*req) goto err;
 942         id = OCSP_cert_to_id(NULL, cert, issuer);
 943         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 944         if(!OCSP_request_add0_id(*req, id)) goto err;
 945         return 1;
 946
 947         err:
 948         BIO_printf(bio_err, "Error Creating OCSP request\n");
 949         return 0;
 950         }
 951
 952 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
 953                                 STACK_OF(OCSP_CERTID) *ids)
 954         {
 955         OCSP_CERTID *id;
 956         X509_NAME *iname;
 957         ASN1_BIT_STRING *ikey;
 958         ASN1_INTEGER *sno;
 959         if(!issuer)
 960                 {
 961                 BIO_printf(bio_err, "No issuer certificate specified\n");
 962                 return 0;
 963                 }
 964         if(!*req) *req = OCSP_REQUEST_new();
 965         if(!*req) goto err;
 966         iname = X509_get_subject_name(issuer);
 967         ikey = X509_get0_pubkey_bitstr(issuer);
 968         sno = s2i_ASN1_INTEGER(NULL, serial);
 969         if(!sno)
 970                 {
 971                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 972                 return 0;
 973                 }
 974         id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
 975         ASN1_INTEGER_free(sno);
 976         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 977         if(!OCSP_request_add0_id(*req, id)) goto err;
 978         return 1;
 979
 980         err:
 981         BIO_printf(bio_err, "Error Creating OCSP request\n");
 982         return 0;
 983         }
 984
 985 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 986                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 987                                         long nsec, long maxage)
 988         {
 989         OCSP_CERTID *id;
 990         char *name;
 991         int i;
 992
 993         int status, reason;
 994
 995         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 996
 997         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 998                 return 1;
 999
1000         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
1001                 {
1002                 id = sk_OCSP_CERTID_value(ids, i);
1003                 name = sk_value(names, i);
1004                 BIO_printf(out, "%s: ", name);
1005
1006                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
1007                                         &rev, &thisupd, &nextupd))
1008                         {
1009                         BIO_puts(out, "ERROR: No Status found.\n");
1010                         continue;
1011                         }
1012
1013                 /* Check validity: if invalid write to output BIO so we
1014                  * know which response this refers to.
1015                  */
1016                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1017                         {
1018                         BIO_puts(out, "WARNING: Status times invalid.\n");
1019                         ERR_print_errors(out);
1020                         }
1021                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1022
1023                 BIO_puts(out, "\tThis Update: ");
1024                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1025                 BIO_puts(out, "\n");
1026
1027                 if(nextupd)
1028                         {
1029                         BIO_puts(out, "\tNext Update: ");
1030                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1031                         BIO_puts(out, "\n");
1032                         }
1033
1034                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1035                         continue;
1036
1037                 if (reason != -1)
1038                         BIO_printf(out, "\tReason: %s\n",
1039                                 OCSP_crl_reason_str(reason));
1040
1041                 BIO_puts(out, "\tRevocation Time: ");
1042                 ASN1_GENERALIZEDTIME_print(out, rev);
1043                 BIO_puts(out, "\n");
1044                 }
1045
1046         return 1;
1047         }
1048
1049
1050 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1051                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1052                         STACK_OF(X509) *rother, unsigned long flags,
1053                         int nmin, int ndays)
1054         {
1055         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1056         OCSP_CERTID *cid, *ca_id = NULL;
1057         OCSP_BASICRESP *bs = NULL;
1058         int i, id_count, ret = 1;
1059
1060
1061         id_count = OCSP_request_onereq_count(req);
1062
1063         if (id_count <= 0)
1064                 {
1065                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1066                 goto end;
1067                 }
1068
1069         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1070
1071         bs = OCSP_BASICRESP_new();
1072         thisupd = X509_gmtime_adj(NULL, 0);
1073         if (ndays != -1)
1074                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1075
1076         /* Examine each certificate id in the request */
1077         for (i = 0; i < id_count; i++)
1078                 {
1079                 OCSP_ONEREQ *one;
1080                 ASN1_INTEGER *serial;
1081                 char **inf;
1082                 one = OCSP_request_onereq_get0(req, i);
1083                 cid = OCSP_onereq_get0_id(one);
1084                 /* Is this request about our CA? */
1085                 if (OCSP_id_issuer_cmp(ca_id, cid))
1086                         {
1087                         OCSP_basic_add1_status(bs, cid,
1088                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1089                                                 0, NULL,
1090                                                 thisupd, nextupd);
1091                         continue;
1092                         }
1093                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1094                 inf = lookup_serial(db, serial);
1095                 if (!inf)
1096                         OCSP_basic_add1_status(bs, cid,
1097                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1098                                                 0, NULL,
1099                                                 thisupd, nextupd);
1100                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1101                         OCSP_basic_add1_status(bs, cid,
1102                                                 V_OCSP_CERTSTATUS_GOOD,
1103                                                 0, NULL,
1104                                                 thisupd, nextupd);
1105                 else if (inf[DB_type][0] == DB_TYPE_REV)
1106                         {
1107                         ASN1_OBJECT *inst = NULL;
1108                         ASN1_TIME *revtm = NULL;
1109                         ASN1_GENERALIZEDTIME *invtm = NULL;
1110                         OCSP_SINGLERESP *single;
1111                         int reason = -1;
1112                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1113                         single = OCSP_basic_add1_status(bs, cid,
1114                                                 V_OCSP_CERTSTATUS_REVOKED,
1115                                                 reason, revtm,
1116                                                 thisupd, nextupd);
1117                         if (invtm)
1118                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1119                         else if (inst)
1120                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1121                         ASN1_OBJECT_free(inst);
1122                         ASN1_TIME_free(revtm);
1123                         ASN1_GENERALIZEDTIME_free(invtm);
1124                         }
1125                 }
1126
1127         OCSP_copy_nonce(bs, req);
1128
1129         OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);
1130
1131         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1132
1133         end:
1134         ASN1_TIME_free(thisupd);
1135         ASN1_TIME_free(nextupd);
1136         OCSP_CERTID_free(ca_id);
1137         OCSP_BASICRESP_free(bs);
1138         return ret;
1139
1140         }
1141
1142 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1143         {
1144         int i;
1145         BIGNUM *bn = NULL;
1146         char *itmp, *row[DB_NUMBER],**rrow;
1147         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1148         bn = ASN1_INTEGER_to_BN(ser,NULL);
1149         if (BN_is_zero(bn))
1150                 itmp = BUF_strdup("00");
1151         else
1152                 itmp = BN_bn2hex(bn);
1153         row[DB_serial] = itmp;
1154         BN_free(bn);
1155         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1156         OPENSSL_free(itmp);
1157         return rrow;
1158         }
1159
1160 /* Quick and dirty OCSP server: read in and parse input request */
1161
1162 static BIO *init_responder(char *port)
1163         {
1164         BIO *acbio = NULL, *bufbio = NULL;
1165         bufbio = BIO_new(BIO_f_buffer());
1166         if (!bufbio)
1167                 goto err;
1168 #ifndef OPENSSL_NO_SOCK
1169         acbio = BIO_new_accept(port);
1170 #else
1171         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1172 #endif
1173         if (!acbio)
1174                 goto err;
1175         BIO_set_accept_bios(acbio, bufbio);
1176         bufbio = NULL;
1177
1178         if (BIO_do_accept(acbio) <= 0)
1179                 {
1180                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1181                         ERR_print_errors(bio_err);
1182                         goto err;
1183                 }
1184
1185         return acbio;
1186
1187         err:
1188         BIO_free_all(acbio);
1189         BIO_free(bufbio);
1190         return NULL;
1191         }
1192
1193 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1194         {
1195         int have_post = 0, len;
1196         OCSP_REQUEST *req = NULL;
1197         char inbuf[1024];
1198         BIO *cbio = NULL;
1199
1200         if (BIO_do_accept(acbio) <= 0)
1201                 {
1202                         BIO_printf(bio_err, "Error accepting connection\n");
1203                         ERR_print_errors(bio_err);
1204                         return 0;
1205                 }
1206
1207         cbio = BIO_pop(acbio);
1208         *pcbio = cbio;
1209
1210         for(;;)
1211                 {
1212                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1213                 if (len <= 0)
1214                         return 1;
1215                 /* Look for "POST" signalling start of query */
1216                 if (!have_post)
1217                         {
1218                         if(strncmp(inbuf, "POST", 4))
1219                                 {
1220                                 BIO_printf(bio_err, "Invalid request\n");
1221                                 return 1;
1222                                 }
1223                         have_post = 1;
1224                         }
1225                 /* Look for end of headers */
1226                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1227                         break;
1228                 }
1229
1230         /* Try to read OCSP request */
1231
1232         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1233
1234         if (!req)
1235                 {
1236                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1237                 ERR_print_errors(bio_err);
1238                 }
1239
1240         *preq = req;
1241
1242         return 1;
1243
1244         }
1245
1246 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1247         {
1248         char http_resp[] =
1249                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1250                 "Content-Length: %d\r\n\r\n";
1251         if (!cbio)
1252                 return 0;
1253         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1254         i2d_OCSP_RESPONSE_bio(cbio, resp);
1255         BIO_flush(cbio);
1256         return 1;
1257         }
1258
1259 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1260                                 OCSP_REQUEST *req, int req_timeout)
1261         {
1262         int fd;
1263         int rv;
1264         OCSP_REQ_CTX *ctx = NULL;
1265         OCSP_RESPONSE *rsp = NULL;
1266         fd_set confds;
1267         struct timeval tv;
1268
1269         if (req_timeout != -1)
1270                 BIO_set_nbio(cbio, 1);
1271
1272         rv = BIO_do_connect(cbio);
1273
1274         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1275                 {
1276                 BIO_puts(err, "Error connecting BIO\n");
1277                 return NULL;
1278                 }
1279
1280         if (req_timeout == -1)
1281                 return OCSP_sendreq_bio(cbio, path, req);
1282
1283         if (BIO_get_fd(cbio, &fd) <= 0)
1284                 {
1285                 BIO_puts(err, "Can't get connection fd\n");
1286                 goto err;
1287                 }
1288
1289         if (rv <= 0)
1290                 {
1291                 FD_ZERO(&confds);
1292                 openssl_fdset(fd, &confds);
1293                 tv.tv_usec = 0;
1294                 tv.tv_sec = req_timeout;
1295                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1296                 if (rv == 0)
1297                         {
1298                         BIO_puts(err, "Timeout on connect\n");
1299                         return NULL;
1300                         }
1301                 }
1302
1303
1304         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1305         if (!ctx)
1306                 return NULL;
1307
1308         for (;;)
1309                 {
1310                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1311                 if (rv != -1)
1312                         break;
1313                 FD_ZERO(&confds);
1314                 openssl_fdset(fd, &confds);
1315                 tv.tv_usec = 0;
1316                 tv.tv_sec = req_timeout;
1317                 if (BIO_should_read(cbio))
1318                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1319                 else if (BIO_should_write(cbio))
1320                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1321                 else
1322                         {
1323                         BIO_puts(err, "Unexpected retry condition\n");
1324                         goto err;
1325                         }
1326                 if (rv == 0)
1327                         {
1328                         BIO_puts(err, "Timeout on request\n");
1329                         break;
1330                         }
1331                 if (rv == -1)
1332                         {
1333                         BIO_puts(err, "Select error\n");
1334                         break;
1335                         }
1336
1337                 }
1338         err:
1339
1340         OCSP_REQ_CTX_free(ctx);
1341
1342         return rsp;
1343         }
1344
1345 #endif