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