crypto/openssl/apps/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 #define USE_SOCKETS
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include "apps.h" /* needs to be included before the openssl headers! */
  64 #include <openssl/e_os2.h>
  65 #include <openssl/ssl.h>
  66 #include <openssl/err.h>
  67
  68 /* Maximum leeway in validity period: default 5 minutes */
  69 #define MAX_VALIDITY_PERIOD     (5 * 60)
  70
  71 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
  72                                 STACK_OF(OCSP_CERTID) *ids);
  73 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
  74                                 STACK_OF(OCSP_CERTID) *ids);
  75 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  76                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  77                                 long nsec, long maxage);
  78
  79 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  80                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  81                         STACK_OF(X509) *rother, unsigned long flags,
  82                         int nmin, int ndays);
  83
  84 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
  85 static BIO *init_responder(char *port);
  86 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
  87 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
  88 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
  89                                 OCSP_REQUEST *req, int req_timeout);
  90
  91 #undef PROG
  92 #define PROG ocsp_main
  93
  94 int MAIN(int, char **);
  95
  96 int MAIN(int argc, char **argv)
  97         {
  98         ENGINE *e = NULL;
  99         char **args;
 100         char *host = NULL, *port = NULL, *path = "/";
 101         char *reqin = NULL, *respin = NULL;
 102         char *reqout = NULL, *respout = NULL;
 103         char *signfile = NULL, *keyfile = NULL;
 104         char *rsignfile = NULL, *rkeyfile = NULL;
 105         char *outfile = NULL;
 106         int add_nonce = 1, noverify = 0, use_ssl = -1;
 107         OCSP_REQUEST *req = NULL;
 108         OCSP_RESPONSE *resp = NULL;
 109         OCSP_BASICRESP *bs = NULL;
 110         X509 *issuer = NULL, *cert = NULL;
 111         X509 *signer = NULL, *rsigner = NULL;
 112         EVP_PKEY *key = NULL, *rkey = NULL;
 113         BIO *acbio = NULL, *cbio = NULL;
 114         BIO *derbio = NULL;
 115         BIO *out = NULL;
 116         int req_timeout = -1;
 117         int req_text = 0, resp_text = 0;
 118         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 119         char *CAfile = NULL, *CApath = NULL;
 120         X509_STORE *store = NULL;
 121         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 122         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 123         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 124         int ret = 1;
 125         int accept_count = -1;
 126         int badarg = 0;
 127         int i;
 128         int ignore_err = 0;
 129         STACK *reqnames = NULL;
 130         STACK_OF(OCSP_CERTID) *ids = NULL;
 131
 132         X509 *rca_cert = NULL;
 133         char *ridx_filename = NULL;
 134         char *rca_filename = NULL;
 135         CA_DB *rdb = NULL;
 136         int nmin = 0, ndays = -1;
 137
 138         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 139
 140         if (!load_config(bio_err, NULL))
 141                 goto end;
 142         SSL_load_error_strings();
 143         OpenSSL_add_ssl_algorithms();
 144         args = argv + 1;
 145         reqnames = sk_new_null();
 146         ids = sk_OCSP_CERTID_new_null();
 147         while (!badarg && *args && *args[0] == '-')
 148                 {
 149                 if (!strcmp(*args, "-out"))
 150                         {
 151                         if (args[1])
 152                                 {
 153                                 args++;
 154                                 outfile = *args;
 155                                 }
 156                         else badarg = 1;
 157                         }
 158                 else if (!strcmp(*args, "-timeout"))
 159                         {
 160                         if (args[1])
 161                                 {
 162                                 args++;
 163                                 req_timeout = atol(*args);
 164                                 if (req_timeout < 0)
 165                                         {
 166                                         BIO_printf(bio_err,
 167                                                 "Illegal timeout value %s\n",
 168                                                 *args);
 169                                         badarg = 1;
 170                                         }
 171                                 }
 172                         else badarg = 1;
 173                         }
 174                 else if (!strcmp(*args, "-url"))
 175                         {
 176                         if (args[1])
 177                                 {
 178                                 args++;
 179                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 180                                         {
 181                                         BIO_printf(bio_err, "Error parsing URL\n");
 182                                         badarg = 1;
 183                                         }
 184                                 }
 185                         else badarg = 1;
 186                         }
 187                 else if (!strcmp(*args, "-host"))
 188                         {
 189                         if (args[1])
 190                                 {
 191                                 args++;
 192                                 host = *args;
 193                                 }
 194                         else badarg = 1;
 195                         }
 196                 else if (!strcmp(*args, "-port"))
 197                         {
 198                         if (args[1])
 199                                 {
 200                                 args++;
 201                                 port = *args;
 202                                 }
 203                         else badarg = 1;
 204                         }
 205                 else if (!strcmp(*args, "-ignore_err"))
 206                         ignore_err = 1;
 207                 else if (!strcmp(*args, "-noverify"))
 208                         noverify = 1;
 209                 else if (!strcmp(*args, "-nonce"))
 210                         add_nonce = 2;
 211                 else if (!strcmp(*args, "-no_nonce"))
 212                         add_nonce = 0;
 213                 else if (!strcmp(*args, "-resp_no_certs"))
 214                         rflags |= OCSP_NOCERTS;
 215                 else if (!strcmp(*args, "-resp_key_id"))
 216                         rflags |= OCSP_RESPID_KEY;
 217                 else if (!strcmp(*args, "-no_certs"))
 218                         sign_flags |= OCSP_NOCERTS;
 219                 else if (!strcmp(*args, "-no_signature_verify"))
 220                         verify_flags |= OCSP_NOSIGS;
 221                 else if (!strcmp(*args, "-no_cert_verify"))
 222                         verify_flags |= OCSP_NOVERIFY;
 223                 else if (!strcmp(*args, "-no_chain"))
 224                         verify_flags |= OCSP_NOCHAIN;
 225                 else if (!strcmp(*args, "-no_cert_checks"))
 226                         verify_flags |= OCSP_NOCHECKS;
 227                 else if (!strcmp(*args, "-no_explicit"))
 228                         verify_flags |= OCSP_NOEXPLICIT;
 229                 else if (!strcmp(*args, "-trust_other"))
 230                         verify_flags |= OCSP_TRUSTOTHER;
 231                 else if (!strcmp(*args, "-no_intern"))
 232                         verify_flags |= OCSP_NOINTERN;
 233                 else if (!strcmp(*args, "-text"))
 234                         {
 235                         req_text = 1;
 236                         resp_text = 1;
 237                         }
 238                 else if (!strcmp(*args, "-req_text"))
 239                         req_text = 1;
 240                 else if (!strcmp(*args, "-resp_text"))
 241                         resp_text = 1;
 242                 else if (!strcmp(*args, "-reqin"))
 243                         {
 244                         if (args[1])
 245                                 {
 246                                 args++;
 247                                 reqin = *args;
 248                                 }
 249                         else badarg = 1;
 250                         }
 251                 else if (!strcmp(*args, "-respin"))
 252                         {
 253                         if (args[1])
 254                                 {
 255                                 args++;
 256                                 respin = *args;
 257                                 }
 258                         else badarg = 1;
 259                         }
 260                 else if (!strcmp(*args, "-signer"))
 261                         {
 262                         if (args[1])
 263                                 {
 264                                 args++;
 265                                 signfile = *args;
 266                                 }
 267                         else badarg = 1;
 268                         }
 269                 else if (!strcmp (*args, "-VAfile"))
 270                         {
 271                         if (args[1])
 272                                 {
 273                                 args++;
 274                                 verify_certfile = *args;
 275                                 verify_flags |= OCSP_TRUSTOTHER;
 276                                 }
 277                         else badarg = 1;
 278                         }
 279                 else if (!strcmp(*args, "-sign_other"))
 280                         {
 281                         if (args[1])
 282                                 {
 283                                 args++;
 284                                 sign_certfile = *args;
 285                                 }
 286                         else badarg = 1;
 287                         }
 288                 else if (!strcmp(*args, "-verify_other"))
 289                         {
 290                         if (args[1])
 291                                 {
 292                                 args++;
 293                                 verify_certfile = *args;
 294                                 }
 295                         else badarg = 1;
 296                         }
 297                 else if (!strcmp (*args, "-CAfile"))
 298                         {
 299                         if (args[1])
 300                                 {
 301                                 args++;
 302                                 CAfile = *args;
 303                                 }
 304                         else badarg = 1;
 305                         }
 306                 else if (!strcmp (*args, "-CApath"))
 307                         {
 308                         if (args[1])
 309                                 {
 310                                 args++;
 311                                 CApath = *args;
 312                                 }
 313                         else badarg = 1;
 314                         }
 315                 else if (!strcmp (*args, "-validity_period"))
 316                         {
 317                         if (args[1])
 318                                 {
 319                                 args++;
 320                                 nsec = atol(*args);
 321                                 if (nsec < 0)
 322                                         {
 323                                         BIO_printf(bio_err,
 324                                                 "Illegal validity period %s\n",
 325                                                 *args);
 326                                         badarg = 1;
 327                                         }
 328                                 }
 329                         else badarg = 1;
 330                         }
 331                 else if (!strcmp (*args, "-status_age"))
 332                         {
 333                         if (args[1])
 334                                 {
 335                                 args++;
 336                                 maxage = atol(*args);
 337                                 if (maxage < 0)
 338                                         {
 339                                         BIO_printf(bio_err,
 340                                                 "Illegal validity age %s\n",
 341                                                 *args);
 342                                         badarg = 1;
 343                                         }
 344                                 }
 345                         else badarg = 1;
 346                         }
 347                  else if (!strcmp(*args, "-signkey"))
 348                         {
 349                         if (args[1])
 350                                 {
 351                                 args++;
 352                                 keyfile = *args;
 353                                 }
 354                         else badarg = 1;
 355                         }
 356                 else if (!strcmp(*args, "-reqout"))
 357                         {
 358                         if (args[1])
 359                                 {
 360                                 args++;
 361                                 reqout = *args;
 362                                 }
 363                         else badarg = 1;
 364                         }
 365                 else if (!strcmp(*args, "-respout"))
 366                         {
 367                         if (args[1])
 368                                 {
 369                                 args++;
 370                                 respout = *args;
 371                                 }
 372                         else badarg = 1;
 373                         }
 374                  else if (!strcmp(*args, "-path"))
 375                         {
 376                         if (args[1])
 377                                 {
 378                                 args++;
 379                                 path = *args;
 380                                 }
 381                         else badarg = 1;
 382                         }
 383                 else if (!strcmp(*args, "-issuer"))
 384                         {
 385                         if (args[1])
 386                                 {
 387                                 args++;
 388                                 X509_free(issuer);
 389                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 390                                         NULL, e, "issuer certificate");
 391                                 if(!issuer) goto end;
 392                                 }
 393                         else badarg = 1;
 394                         }
 395                 else if (!strcmp (*args, "-cert"))
 396                         {
 397                         if (args[1])
 398                                 {
 399                                 args++;
 400                                 X509_free(cert);
 401                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 402                                         NULL, e, "certificate");
 403                                 if(!cert) goto end;
 404                                 if(!add_ocsp_cert(&req, cert, issuer, ids))
 405                                         goto end;
 406                                 if(!sk_push(reqnames, *args))
 407                                         goto end;
 408                                 }
 409                         else badarg = 1;
 410                         }
 411                 else if (!strcmp(*args, "-serial"))
 412                         {
 413                         if (args[1])
 414                                 {
 415                                 args++;
 416                                 if(!add_ocsp_serial(&req, *args, 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, "-index"))
 424                         {
 425                         if (args[1])
 426                                 {
 427                                 args++;
 428                                 ridx_filename = *args;
 429                                 }
 430                         else badarg = 1;
 431                         }
 432                 else if (!strcmp(*args, "-CA"))
 433                         {
 434                         if (args[1])
 435                                 {
 436                                 args++;
 437                                 rca_filename = *args;
 438                                 }
 439                         else badarg = 1;
 440                         }
 441                 else if (!strcmp (*args, "-nmin"))
 442                         {
 443                         if (args[1])
 444                                 {
 445                                 args++;
 446                                 nmin = atol(*args);
 447                                 if (nmin < 0)
 448                                         {
 449                                         BIO_printf(bio_err,
 450                                                 "Illegal update period %s\n",
 451                                                 *args);
 452                                         badarg = 1;
 453                                         }
 454                                 }
 455                                 if (ndays == -1)
 456                                         ndays = 0;
 457                         else badarg = 1;
 458                         }
 459                 else if (!strcmp (*args, "-nrequest"))
 460                         {
 461                         if (args[1])
 462                                 {
 463                                 args++;
 464                                 accept_count = atol(*args);
 465                                 if (accept_count < 0)
 466                                         {
 467                                         BIO_printf(bio_err,
 468                                                 "Illegal accept count %s\n",
 469                                                 *args);
 470                                         badarg = 1;
 471                                         }
 472                                 }
 473                         else badarg = 1;
 474                         }
 475                 else if (!strcmp (*args, "-ndays"))
 476                         {
 477                         if (args[1])
 478                                 {
 479                                 args++;
 480                                 ndays = atol(*args);
 481                                 if (ndays < 0)
 482                                         {
 483                                         BIO_printf(bio_err,
 484                                                 "Illegal update period %s\n",
 485                                                 *args);
 486                                         badarg = 1;
 487                                         }
 488                                 }
 489                         else badarg = 1;
 490                         }
 491                 else if (!strcmp(*args, "-rsigner"))
 492                         {
 493                         if (args[1])
 494                                 {
 495                                 args++;
 496                                 rsignfile = *args;
 497                                 }
 498                         else badarg = 1;
 499                         }
 500                 else if (!strcmp(*args, "-rkey"))
 501                         {
 502                         if (args[1])
 503                                 {
 504                                 args++;
 505                                 rkeyfile = *args;
 506                                 }
 507                         else badarg = 1;
 508                         }
 509                 else if (!strcmp(*args, "-rother"))
 510                         {
 511                         if (args[1])
 512                                 {
 513                                 args++;
 514                                 rcertfile = *args;
 515                                 }
 516                         else badarg = 1;
 517                         }
 518                 else badarg = 1;
 519                 args++;
 520                 }
 521
 522         /* Have we anything to do? */
 523         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 524
 525         if (badarg)
 526                 {
 527                 BIO_printf (bio_err, "OCSP utility\n");
 528                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 529                 BIO_printf (bio_err, "where options are\n");
 530                 BIO_printf (bio_err, "-out file          output filename\n");
 531                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 532                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 533                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 534                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 535                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 536                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 537                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 538                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 539                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 540                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 541                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 542                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 543                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 544                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 545                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 546                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 547                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 548                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 549                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 550                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 551                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 552                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 553                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 554                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 555                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 556                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 557                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 558                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 559                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 560                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 561                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 562                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 563                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 564                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 565                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 566                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 567                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 568                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 569                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 570                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 571                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 572                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 573                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 574                 goto end;
 575                 }
 576
 577         if(outfile) out = BIO_new_file(outfile, "w");
 578         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 579
 580         if(!out)
 581                 {
 582                 BIO_printf(bio_err, "Error opening output file\n");
 583                 goto end;
 584                 }
 585
 586         if (!req && (add_nonce != 2)) add_nonce = 0;
 587
 588         if (!req && reqin)
 589                 {
 590                 derbio = BIO_new_file(reqin, "rb");
 591                 if (!derbio)
 592                         {
 593                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 594                         goto end;
 595                         }
 596                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 597                 BIO_free(derbio);
 598                 if(!req)
 599                         {
 600                         BIO_printf(bio_err, "Error reading OCSP request\n");
 601                         goto end;
 602                         }
 603                 }
 604
 605         if (!req && port)
 606                 {
 607                 acbio = init_responder(port);
 608                 if (!acbio)
 609                         goto end;
 610                 }
 611
 612         if (rsignfile && !rdb)
 613                 {
 614                 if (!rkeyfile) rkeyfile = rsignfile;
 615                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 616                         NULL, e, "responder certificate");
 617                 if (!rsigner)
 618                         {
 619                         BIO_printf(bio_err, "Error loading responder certificate\n");
 620                         goto end;
 621                         }
 622                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 623                         NULL, e, "CA certificate");
 624                 if (rcertfile)
 625                         {
 626                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 627                                 NULL, e, "responder other certificates");
 628                         if (!rother) goto end;
 629                         }
 630                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 631                         "responder private key");
 632                 if (!rkey)
 633                         goto end;
 634                 }
 635         if(acbio)
 636                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 637
 638         redo_accept:
 639
 640         if (acbio)
 641                 {
 642                 if (!do_responder(&req, &cbio, acbio, port))
 643                         goto end;
 644                 if (!req)
 645                         {
 646                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 647                         send_ocsp_response(cbio, resp);
 648                         goto done_resp;
 649                         }
 650                 }
 651
 652         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 653                 {
 654                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 655                 goto end;
 656                 }
 657
 658         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 659
 660         if (signfile)
 661                 {
 662                 if (!keyfile) keyfile = signfile;
 663                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 664                         NULL, e, "signer certificate");
 665                 if (!signer)
 666                         {
 667                         BIO_printf(bio_err, "Error loading signer certificate\n");
 668                         goto end;
 669                         }
 670                 if (sign_certfile)
 671                         {
 672                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 673                                 NULL, e, "signer certificates");
 674                         if (!sign_other) goto end;
 675                         }
 676                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 677                         "signer private key");
 678                 if (!key)
 679                         goto end;
 680                 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
 681                         {
 682                         BIO_printf(bio_err, "Error signing OCSP request\n");
 683                         goto end;
 684                         }
 685                 }
 686
 687         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 688
 689         if (reqout)
 690                 {
 691                 derbio = BIO_new_file(reqout, "wb");
 692                 if(!derbio)
 693                         {
 694                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 695                         goto end;
 696                         }
 697                 i2d_OCSP_REQUEST_bio(derbio, req);
 698                 BIO_free(derbio);
 699                 }
 700
 701         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 702                 {
 703                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 704                 goto end;
 705                 }
 706
 707         if (ridx_filename && !rdb)
 708                 {
 709                 rdb = load_index(ridx_filename, NULL);
 710                 if (!rdb) goto end;
 711                 if (!index_index(rdb)) goto end;
 712                 }
 713
 714         if (rdb)
 715                 {
 716                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 717                 if (cbio)
 718                         send_ocsp_response(cbio, resp);
 719                 }
 720         else if (host)
 721                 {
 722 #ifndef OPENSSL_NO_SOCK
 723                 resp = process_responder(bio_err, req, host, path,
 724                                                 port, use_ssl, req_timeout);
 725                 if (!resp)
 726                         goto end;
 727 #else
 728                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 729                 goto end;
 730 #endif
 731                 }
 732         else if (respin)
 733                 {
 734                 derbio = BIO_new_file(respin, "rb");
 735                 if (!derbio)
 736                         {
 737                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 738                         goto end;
 739                         }
 740                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 741                 BIO_free(derbio);
 742                 if(!resp)
 743                         {
 744                         BIO_printf(bio_err, "Error reading OCSP response\n");
 745                         goto end;
 746                         }
 747
 748                 }
 749         else
 750                 {
 751                 ret = 0;
 752                 goto end;
 753                 }
 754
 755         done_resp:
 756
 757         if (respout)
 758                 {
 759                 derbio = BIO_new_file(respout, "wb");
 760                 if(!derbio)
 761                         {
 762                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 763                         goto end;
 764                         }
 765                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 766                 BIO_free(derbio);
 767                 }
 768
 769         i = OCSP_response_status(resp);
 770
 771         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 772                 {
 773                 BIO_printf(out, "Responder Error: %s (%d)\n",
 774                                 OCSP_response_status_str(i), i);
 775                 if (ignore_err)
 776                         goto redo_accept;
 777                 ret = 0;
 778                 goto end;
 779                 }
 780
 781         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 782
 783         /* If running as responder don't verify our own response */
 784         if (cbio)
 785                 {
 786                 if (accept_count > 0)
 787                         accept_count--;
 788                 /* Redo if more connections needed */
 789                 if (accept_count)
 790                         {
 791                         BIO_free_all(cbio);
 792                         cbio = NULL;
 793                         OCSP_REQUEST_free(req);
 794                         req = NULL;
 795                         OCSP_RESPONSE_free(resp);
 796                         resp = NULL;
 797                         goto redo_accept;
 798                         }
 799                 goto end;
 800                 }
 801
 802         if (!store)
 803                 store = setup_verify(bio_err, CAfile, CApath);
 804         if (!store)
 805                 goto end;
 806         if (verify_certfile)
 807                 {
 808                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 809                         NULL, e, "validator certificate");
 810                 if (!verify_other) goto end;
 811                 }
 812
 813         bs = OCSP_response_get1_basic(resp);
 814
 815         if (!bs)
 816                 {
 817                 BIO_printf(bio_err, "Error parsing response\n");
 818                 goto end;
 819                 }
 820
 821         if (!noverify)
 822                 {
 823                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 824                         {
 825                         if (i == -1)
 826                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 827                         else
 828                                 {
 829                                 BIO_printf(bio_err, "Nonce Verify error\n");
 830                                 goto end;
 831                                 }
 832                         }
 833
 834                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 835                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 836
 837                 if(i <= 0)
 838                         {
 839                         BIO_printf(bio_err, "Response Verify Failure\n");
 840                         ERR_print_errors(bio_err);
 841                         }
 842                 else
 843                         BIO_printf(bio_err, "Response verify OK\n");
 844
 845                 }
 846
 847         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 848                 goto end;
 849
 850         ret = 0;
 851
 852 end:
 853         ERR_print_errors(bio_err);
 854         X509_free(signer);
 855         X509_STORE_free(store);
 856         EVP_PKEY_free(key);
 857         EVP_PKEY_free(rkey);
 858         X509_free(issuer);
 859         X509_free(cert);
 860         X509_free(rsigner);
 861         X509_free(rca_cert);
 862         free_index(rdb);
 863         BIO_free_all(cbio);
 864         BIO_free_all(acbio);
 865         BIO_free(out);
 866         OCSP_REQUEST_free(req);
 867         OCSP_RESPONSE_free(resp);
 868         OCSP_BASICRESP_free(bs);
 869         sk_free(reqnames);
 870         sk_OCSP_CERTID_free(ids);
 871         sk_X509_pop_free(sign_other, X509_free);
 872         sk_X509_pop_free(verify_other, X509_free);
 873
 874         if (use_ssl != -1)
 875                 {
 876                 OPENSSL_free(host);
 877                 OPENSSL_free(port);
 878                 OPENSSL_free(path);
 879                 }
 880
 881         OPENSSL_EXIT(ret);
 882 }
 883
 884 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
 885                                 STACK_OF(OCSP_CERTID) *ids)
 886         {
 887         OCSP_CERTID *id;
 888         if(!issuer)
 889                 {
 890                 BIO_printf(bio_err, "No issuer certificate specified\n");
 891                 return 0;
 892                 }
 893         if(!*req) *req = OCSP_REQUEST_new();
 894         if(!*req) goto err;
 895         id = OCSP_cert_to_id(NULL, cert, issuer);
 896         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 897         if(!OCSP_request_add0_id(*req, id)) goto err;
 898         return 1;
 899
 900         err:
 901         BIO_printf(bio_err, "Error Creating OCSP request\n");
 902         return 0;
 903         }
 904
 905 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
 906                                 STACK_OF(OCSP_CERTID) *ids)
 907         {
 908         OCSP_CERTID *id;
 909         X509_NAME *iname;
 910         ASN1_BIT_STRING *ikey;
 911         ASN1_INTEGER *sno;
 912         if(!issuer)
 913                 {
 914                 BIO_printf(bio_err, "No issuer certificate specified\n");
 915                 return 0;
 916                 }
 917         if(!*req) *req = OCSP_REQUEST_new();
 918         if(!*req) goto err;
 919         iname = X509_get_subject_name(issuer);
 920         ikey = X509_get0_pubkey_bitstr(issuer);
 921         sno = s2i_ASN1_INTEGER(NULL, serial);
 922         if(!sno)
 923                 {
 924                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 925                 return 0;
 926                 }
 927         id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
 928         ASN1_INTEGER_free(sno);
 929         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 930         if(!OCSP_request_add0_id(*req, id)) goto err;
 931         return 1;
 932
 933         err:
 934         BIO_printf(bio_err, "Error Creating OCSP request\n");
 935         return 0;
 936         }
 937
 938 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 939                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 940                                         long nsec, long maxage)
 941         {
 942         OCSP_CERTID *id;
 943         char *name;
 944         int i;
 945
 946         int status, reason;
 947
 948         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 949
 950         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 951                 return 1;
 952
 953         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 954                 {
 955                 id = sk_OCSP_CERTID_value(ids, i);
 956                 name = sk_value(names, i);
 957                 BIO_printf(out, "%s: ", name);
 958
 959                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 960                                         &rev, &thisupd, &nextupd))
 961                         {
 962                         BIO_puts(out, "ERROR: No Status found.\n");
 963                         continue;
 964                         }
 965
 966                 /* Check validity: if invalid write to output BIO so we
 967                  * know which response this refers to.
 968                  */
 969                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 970                         {
 971                         BIO_puts(out, "WARNING: Status times invalid.\n");
 972                         ERR_print_errors(out);
 973                         }
 974                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 975
 976                 BIO_puts(out, "\tThis Update: ");
 977                 ASN1_GENERALIZEDTIME_print(out, thisupd);
 978                 BIO_puts(out, "\n");
 979
 980                 if(nextupd)
 981                         {
 982                         BIO_puts(out, "\tNext Update: ");
 983                         ASN1_GENERALIZEDTIME_print(out, nextupd);
 984                         BIO_puts(out, "\n");
 985                         }
 986
 987                 if (status != V_OCSP_CERTSTATUS_REVOKED)
 988                         continue;
 989
 990                 if (reason != -1)
 991                         BIO_printf(out, "\tReason: %s\n",
 992                                 OCSP_crl_reason_str(reason));
 993
 994                 BIO_puts(out, "\tRevocation Time: ");
 995                 ASN1_GENERALIZEDTIME_print(out, rev);
 996                 BIO_puts(out, "\n");
 997                 }
 998
 999         return 1;
1000         }
1001
1002
1003 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1004                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1005                         STACK_OF(X509) *rother, unsigned long flags,
1006                         int nmin, int ndays)
1007         {
1008         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1009         OCSP_CERTID *cid, *ca_id = NULL;
1010         OCSP_BASICRESP *bs = NULL;
1011         int i, id_count, ret = 1;
1012
1013
1014         id_count = OCSP_request_onereq_count(req);
1015
1016         if (id_count <= 0)
1017                 {
1018                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1019                 goto end;
1020                 }
1021
1022         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1023
1024         bs = OCSP_BASICRESP_new();
1025         thisupd = X509_gmtime_adj(NULL, 0);
1026         if (ndays != -1)
1027                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1028
1029         /* Examine each certificate id in the request */
1030         for (i = 0; i < id_count; i++)
1031                 {
1032                 OCSP_ONEREQ *one;
1033                 ASN1_INTEGER *serial;
1034                 char **inf;
1035                 one = OCSP_request_onereq_get0(req, i);
1036                 cid = OCSP_onereq_get0_id(one);
1037                 /* Is this request about our CA? */
1038                 if (OCSP_id_issuer_cmp(ca_id, cid))
1039                         {
1040                         OCSP_basic_add1_status(bs, cid,
1041                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1042                                                 0, NULL,
1043                                                 thisupd, nextupd);
1044                         continue;
1045                         }
1046                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1047                 inf = lookup_serial(db, serial);
1048                 if (!inf)
1049                         OCSP_basic_add1_status(bs, cid,
1050                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1051                                                 0, NULL,
1052                                                 thisupd, nextupd);
1053                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1054                         OCSP_basic_add1_status(bs, cid,
1055                                                 V_OCSP_CERTSTATUS_GOOD,
1056                                                 0, NULL,
1057                                                 thisupd, nextupd);
1058                 else if (inf[DB_type][0] == DB_TYPE_REV)
1059                         {
1060                         ASN1_OBJECT *inst = NULL;
1061                         ASN1_TIME *revtm = NULL;
1062                         ASN1_GENERALIZEDTIME *invtm = NULL;
1063                         OCSP_SINGLERESP *single;
1064                         int reason = -1;
1065                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1066                         single = OCSP_basic_add1_status(bs, cid,
1067                                                 V_OCSP_CERTSTATUS_REVOKED,
1068                                                 reason, revtm,
1069                                                 thisupd, nextupd);
1070                         if (invtm)
1071                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1072                         else if (inst)
1073                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1074                         ASN1_OBJECT_free(inst);
1075                         ASN1_TIME_free(revtm);
1076                         ASN1_GENERALIZEDTIME_free(invtm);
1077                         }
1078                 }
1079
1080         OCSP_copy_nonce(bs, req);
1081
1082         OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);
1083
1084         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1085
1086         end:
1087         ASN1_TIME_free(thisupd);
1088         ASN1_TIME_free(nextupd);
1089         OCSP_CERTID_free(ca_id);
1090         OCSP_BASICRESP_free(bs);
1091         return ret;
1092
1093         }
1094
1095 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1096         {
1097         int i;
1098         BIGNUM *bn = NULL;
1099         char *itmp, *row[DB_NUMBER],**rrow;
1100         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1101         bn = ASN1_INTEGER_to_BN(ser,NULL);
1102         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1103         if (BN_is_zero(bn))
1104                 itmp = BUF_strdup("00");
1105         else
1106                 itmp = BN_bn2hex(bn);
1107         row[DB_serial] = itmp;
1108         BN_free(bn);
1109         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1110         OPENSSL_free(itmp);
1111         return rrow;
1112         }
1113
1114 /* Quick and dirty OCSP server: read in and parse input request */
1115
1116 static BIO *init_responder(char *port)
1117         {
1118         BIO *acbio = NULL, *bufbio = NULL;
1119         bufbio = BIO_new(BIO_f_buffer());
1120         if (!bufbio)
1121                 goto err;
1122 #ifndef OPENSSL_NO_SOCK
1123         acbio = BIO_new_accept(port);
1124 #else
1125         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1126 #endif
1127         if (!acbio)
1128                 goto err;
1129         BIO_set_accept_bios(acbio, bufbio);
1130         bufbio = NULL;
1131
1132         if (BIO_do_accept(acbio) <= 0)
1133                 {
1134                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1135                         ERR_print_errors(bio_err);
1136                         goto err;
1137                 }
1138
1139         return acbio;
1140
1141         err:
1142         BIO_free_all(acbio);
1143         BIO_free(bufbio);
1144         return NULL;
1145         }
1146
1147 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1148         {
1149         int have_post = 0, len;
1150         OCSP_REQUEST *req = NULL;
1151         char inbuf[1024];
1152         BIO *cbio = NULL;
1153
1154         if (BIO_do_accept(acbio) <= 0)
1155                 {
1156                         BIO_printf(bio_err, "Error accepting connection\n");
1157                         ERR_print_errors(bio_err);
1158                         return 0;
1159                 }
1160
1161         cbio = BIO_pop(acbio);
1162         *pcbio = cbio;
1163
1164         for(;;)
1165                 {
1166                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1167                 if (len <= 0)
1168                         return 1;
1169                 /* Look for "POST" signalling start of query */
1170                 if (!have_post)
1171                         {
1172                         if(strncmp(inbuf, "POST", 4))
1173                                 {
1174                                 BIO_printf(bio_err, "Invalid request\n");
1175                                 return 1;
1176                                 }
1177                         have_post = 1;
1178                         }
1179                 /* Look for end of headers */
1180                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1181                         break;
1182                 }
1183
1184         /* Try to read OCSP request */
1185
1186         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1187
1188         if (!req)
1189                 {
1190                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1191                 ERR_print_errors(bio_err);
1192                 }
1193
1194         *preq = req;
1195
1196         return 1;
1197
1198         }
1199
1200 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1201         {
1202         char http_resp[] =
1203                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1204                 "Content-Length: %d\r\n\r\n";
1205         if (!cbio)
1206                 return 0;
1207         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1208         i2d_OCSP_RESPONSE_bio(cbio, resp);
1209         (void)BIO_flush(cbio);
1210         return 1;
1211         }
1212
1213 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1214                                 OCSP_REQUEST *req, int req_timeout)
1215         {
1216         int fd;
1217         int rv;
1218         OCSP_REQ_CTX *ctx = NULL;
1219         OCSP_RESPONSE *rsp = NULL;
1220         fd_set confds;
1221         struct timeval tv;
1222
1223         if (req_timeout != -1)
1224                 BIO_set_nbio(cbio, 1);
1225
1226         rv = BIO_do_connect(cbio);
1227
1228         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1229                 {
1230                 BIO_puts(err, "Error connecting BIO\n");
1231                 return NULL;
1232                 }
1233
1234         if (req_timeout == -1)
1235                 return OCSP_sendreq_bio(cbio, path, req);
1236
1237         if (BIO_get_fd(cbio, &fd) <= 0)
1238                 {
1239                 BIO_puts(err, "Can't get connection fd\n");
1240                 goto err;
1241                 }
1242
1243         if (rv <= 0)
1244                 {
1245                 FD_ZERO(&confds);
1246                 openssl_fdset(fd, &confds);
1247                 tv.tv_usec = 0;
1248                 tv.tv_sec = req_timeout;
1249                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1250                 if (rv == 0)
1251                         {
1252                         BIO_puts(err, "Timeout on connect\n");
1253                         return NULL;
1254                         }
1255                 }
1256
1257
1258         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1259         if (!ctx)
1260                 return NULL;
1261
1262         for (;;)
1263                 {
1264                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1265                 if (rv != -1)
1266                         break;
1267                 FD_ZERO(&confds);
1268                 openssl_fdset(fd, &confds);
1269                 tv.tv_usec = 0;
1270                 tv.tv_sec = req_timeout;
1271                 if (BIO_should_read(cbio))
1272                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1273                 else if (BIO_should_write(cbio))
1274                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1275                 else
1276                         {
1277                         BIO_puts(err, "Unexpected retry condition\n");
1278                         goto err;
1279                         }
1280                 if (rv == 0)
1281                         {
1282                         BIO_puts(err, "Timeout on request\n");
1283                         break;
1284                         }
1285                 if (rv == -1)
1286                         {
1287                         BIO_puts(err, "Select error\n");
1288                         break;
1289                         }
1290
1291                 }
1292         err:
1293         if (ctx)
1294                 OCSP_REQ_CTX_free(ctx);
1295
1296         return rsp;
1297         }
1298
1299 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1300                         char *host, char *path, char *port, int use_ssl,
1301                         int req_timeout)
1302         {
1303         BIO *cbio = NULL;
1304         SSL_CTX *ctx = NULL;
1305         OCSP_RESPONSE *resp = NULL;
1306         cbio = BIO_new_connect(host);
1307         if (!cbio)
1308                 {
1309                 BIO_printf(err, "Error creating connect BIO\n");
1310                 goto end;
1311                 }
1312         if (port) BIO_set_conn_port(cbio, port);
1313         if (use_ssl == 1)
1314                 {
1315                 BIO *sbio;
1316 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1317                 ctx = SSL_CTX_new(SSLv23_client_method());
1318 #elif !defined(OPENSSL_NO_SSL3)
1319                 ctx = SSL_CTX_new(SSLv3_client_method());
1320 #elif !defined(OPENSSL_NO_SSL2)
1321                 ctx = SSL_CTX_new(SSLv2_client_method());
1322 #else
1323                 BIO_printf(err, "SSL is disabled\n");
1324                         goto end;
1325 #endif
1326                 if (ctx == NULL)
1327                         {
1328                         BIO_printf(err, "Error creating SSL context.\n");
1329                         goto end;
1330                         }
1331                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1332                 sbio = BIO_new_ssl(ctx, 1);
1333                 cbio = BIO_push(sbio, cbio);
1334                 }
1335         resp = query_responder(err, cbio, path, req, req_timeout);
1336         if (!resp)
1337                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1338         end:
1339         if (ctx)
1340                 SSL_CTX_free(ctx);
1341         if (cbio)
1342                 BIO_free_all(cbio);
1343         return resp;
1344         }
1345
1346 #endif