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 *thost = NULL, *tport = NULL, *tpath = NULL;
 102         char *reqin = NULL, *respin = NULL;
 103         char *reqout = NULL, *respout = NULL;
 104         char *signfile = NULL, *keyfile = NULL;
 105         char *rsignfile = NULL, *rkeyfile = NULL;
 106         char *outfile = NULL;
 107         int add_nonce = 1, noverify = 0, use_ssl = -1;
 108         OCSP_REQUEST *req = NULL;
 109         OCSP_RESPONSE *resp = NULL;
 110         OCSP_BASICRESP *bs = NULL;
 111         X509 *issuer = NULL, *cert = NULL;
 112         X509 *signer = NULL, *rsigner = NULL;
 113         EVP_PKEY *key = NULL, *rkey = NULL;
 114         BIO *acbio = NULL, *cbio = NULL;
 115         BIO *derbio = NULL;
 116         BIO *out = NULL;
 117         int req_timeout = -1;
 118         int req_text = 0, resp_text = 0;
 119         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 120         char *CAfile = NULL, *CApath = NULL;
 121         X509_STORE *store = NULL;
 122         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 123         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 124         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 125         int ret = 1;
 126         int accept_count = -1;
 127         int badarg = 0;
 128         int i;
 129         int ignore_err = 0;
 130         STACK *reqnames = NULL;
 131         STACK_OF(OCSP_CERTID) *ids = NULL;
 132
 133         X509 *rca_cert = NULL;
 134         char *ridx_filename = NULL;
 135         char *rca_filename = NULL;
 136         CA_DB *rdb = NULL;
 137         int nmin = 0, ndays = -1;
 138
 139         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 140
 141         if (!load_config(bio_err, NULL))
 142                 goto end;
 143         SSL_load_error_strings();
 144         OpenSSL_add_ssl_algorithms();
 145         args = argv + 1;
 146         reqnames = sk_new_null();
 147         ids = sk_OCSP_CERTID_new_null();
 148         while (!badarg && *args && *args[0] == '-')
 149                 {
 150                 if (!strcmp(*args, "-out"))
 151                         {
 152                         if (args[1])
 153                                 {
 154                                 args++;
 155                                 outfile = *args;
 156                                 }
 157                         else badarg = 1;
 158                         }
 159                 else if (!strcmp(*args, "-timeout"))
 160                         {
 161                         if (args[1])
 162                                 {
 163                                 args++;
 164                                 req_timeout = atol(*args);
 165                                 if (req_timeout < 0)
 166                                         {
 167                                         BIO_printf(bio_err,
 168                                                 "Illegal timeout value %s\n",
 169                                                 *args);
 170                                         badarg = 1;
 171                                         }
 172                                 }
 173                         else badarg = 1;
 174                         }
 175                 else if (!strcmp(*args, "-url"))
 176                         {
 177                         if (thost)
 178                                 OPENSSL_free(thost);
 179                         if (tport)
 180                                 OPENSSL_free(tport);
 181                         if (tpath)
 182                                 OPENSSL_free(tpath);
 183                         if (args[1])
 184                                 {
 185                                 args++;
 186                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 187                                         {
 188                                         BIO_printf(bio_err, "Error parsing URL\n");
 189                                         badarg = 1;
 190                                         }
 191                                 thost = host;
 192                                 tport = port;
 193                                 tpath = path;
 194                                 }
 195                         else badarg = 1;
 196                         }
 197                 else if (!strcmp(*args, "-host"))
 198                         {
 199                         if (args[1])
 200                                 {
 201                                 args++;
 202                                 host = *args;
 203                                 }
 204                         else badarg = 1;
 205                         }
 206                 else if (!strcmp(*args, "-port"))
 207                         {
 208                         if (args[1])
 209                                 {
 210                                 args++;
 211                                 port = *args;
 212                                 }
 213                         else badarg = 1;
 214                         }
 215                 else if (!strcmp(*args, "-ignore_err"))
 216                         ignore_err = 1;
 217                 else if (!strcmp(*args, "-noverify"))
 218                         noverify = 1;
 219                 else if (!strcmp(*args, "-nonce"))
 220                         add_nonce = 2;
 221                 else if (!strcmp(*args, "-no_nonce"))
 222                         add_nonce = 0;
 223                 else if (!strcmp(*args, "-resp_no_certs"))
 224                         rflags |= OCSP_NOCERTS;
 225                 else if (!strcmp(*args, "-resp_key_id"))
 226                         rflags |= OCSP_RESPID_KEY;
 227                 else if (!strcmp(*args, "-no_certs"))
 228                         sign_flags |= OCSP_NOCERTS;
 229                 else if (!strcmp(*args, "-no_signature_verify"))
 230                         verify_flags |= OCSP_NOSIGS;
 231                 else if (!strcmp(*args, "-no_cert_verify"))
 232                         verify_flags |= OCSP_NOVERIFY;
 233                 else if (!strcmp(*args, "-no_chain"))
 234                         verify_flags |= OCSP_NOCHAIN;
 235                 else if (!strcmp(*args, "-no_cert_checks"))
 236                         verify_flags |= OCSP_NOCHECKS;
 237                 else if (!strcmp(*args, "-no_explicit"))
 238                         verify_flags |= OCSP_NOEXPLICIT;
 239                 else if (!strcmp(*args, "-trust_other"))
 240                         verify_flags |= OCSP_TRUSTOTHER;
 241                 else if (!strcmp(*args, "-no_intern"))
 242                         verify_flags |= OCSP_NOINTERN;
 243                 else if (!strcmp(*args, "-text"))
 244                         {
 245                         req_text = 1;
 246                         resp_text = 1;
 247                         }
 248                 else if (!strcmp(*args, "-req_text"))
 249                         req_text = 1;
 250                 else if (!strcmp(*args, "-resp_text"))
 251                         resp_text = 1;
 252                 else if (!strcmp(*args, "-reqin"))
 253                         {
 254                         if (args[1])
 255                                 {
 256                                 args++;
 257                                 reqin = *args;
 258                                 }
 259                         else badarg = 1;
 260                         }
 261                 else if (!strcmp(*args, "-respin"))
 262                         {
 263                         if (args[1])
 264                                 {
 265                                 args++;
 266                                 respin = *args;
 267                                 }
 268                         else badarg = 1;
 269                         }
 270                 else if (!strcmp(*args, "-signer"))
 271                         {
 272                         if (args[1])
 273                                 {
 274                                 args++;
 275                                 signfile = *args;
 276                                 }
 277                         else badarg = 1;
 278                         }
 279                 else if (!strcmp (*args, "-VAfile"))
 280                         {
 281                         if (args[1])
 282                                 {
 283                                 args++;
 284                                 verify_certfile = *args;
 285                                 verify_flags |= OCSP_TRUSTOTHER;
 286                                 }
 287                         else badarg = 1;
 288                         }
 289                 else if (!strcmp(*args, "-sign_other"))
 290                         {
 291                         if (args[1])
 292                                 {
 293                                 args++;
 294                                 sign_certfile = *args;
 295                                 }
 296                         else badarg = 1;
 297                         }
 298                 else if (!strcmp(*args, "-verify_other"))
 299                         {
 300                         if (args[1])
 301                                 {
 302                                 args++;
 303                                 verify_certfile = *args;
 304                                 }
 305                         else badarg = 1;
 306                         }
 307                 else if (!strcmp (*args, "-CAfile"))
 308                         {
 309                         if (args[1])
 310                                 {
 311                                 args++;
 312                                 CAfile = *args;
 313                                 }
 314                         else badarg = 1;
 315                         }
 316                 else if (!strcmp (*args, "-CApath"))
 317                         {
 318                         if (args[1])
 319                                 {
 320                                 args++;
 321                                 CApath = *args;
 322                                 }
 323                         else badarg = 1;
 324                         }
 325                 else if (!strcmp (*args, "-validity_period"))
 326                         {
 327                         if (args[1])
 328                                 {
 329                                 args++;
 330                                 nsec = atol(*args);
 331                                 if (nsec < 0)
 332                                         {
 333                                         BIO_printf(bio_err,
 334                                                 "Illegal validity period %s\n",
 335                                                 *args);
 336                                         badarg = 1;
 337                                         }
 338                                 }
 339                         else badarg = 1;
 340                         }
 341                 else if (!strcmp (*args, "-status_age"))
 342                         {
 343                         if (args[1])
 344                                 {
 345                                 args++;
 346                                 maxage = atol(*args);
 347                                 if (maxage < 0)
 348                                         {
 349                                         BIO_printf(bio_err,
 350                                                 "Illegal validity age %s\n",
 351                                                 *args);
 352                                         badarg = 1;
 353                                         }
 354                                 }
 355                         else badarg = 1;
 356                         }
 357                  else if (!strcmp(*args, "-signkey"))
 358                         {
 359                         if (args[1])
 360                                 {
 361                                 args++;
 362                                 keyfile = *args;
 363                                 }
 364                         else badarg = 1;
 365                         }
 366                 else if (!strcmp(*args, "-reqout"))
 367                         {
 368                         if (args[1])
 369                                 {
 370                                 args++;
 371                                 reqout = *args;
 372                                 }
 373                         else badarg = 1;
 374                         }
 375                 else if (!strcmp(*args, "-respout"))
 376                         {
 377                         if (args[1])
 378                                 {
 379                                 args++;
 380                                 respout = *args;
 381                                 }
 382                         else badarg = 1;
 383                         }
 384                  else if (!strcmp(*args, "-path"))
 385                         {
 386                         if (args[1])
 387                                 {
 388                                 args++;
 389                                 path = *args;
 390                                 }
 391                         else badarg = 1;
 392                         }
 393                 else if (!strcmp(*args, "-issuer"))
 394                         {
 395                         if (args[1])
 396                                 {
 397                                 args++;
 398                                 X509_free(issuer);
 399                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 400                                         NULL, e, "issuer certificate");
 401                                 if(!issuer) goto end;
 402                                 }
 403                         else badarg = 1;
 404                         }
 405                 else if (!strcmp (*args, "-cert"))
 406                         {
 407                         if (args[1])
 408                                 {
 409                                 args++;
 410                                 X509_free(cert);
 411                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 412                                         NULL, e, "certificate");
 413                                 if(!cert) goto end;
 414                                 if(!add_ocsp_cert(&req, cert, issuer, ids))
 415                                         goto end;
 416                                 if(!sk_push(reqnames, *args))
 417                                         goto end;
 418                                 }
 419                         else badarg = 1;
 420                         }
 421                 else if (!strcmp(*args, "-serial"))
 422                         {
 423                         if (args[1])
 424                                 {
 425                                 args++;
 426                                 if(!add_ocsp_serial(&req, *args, issuer, ids))
 427                                         goto end;
 428                                 if(!sk_push(reqnames, *args))
 429                                         goto end;
 430                                 }
 431                         else badarg = 1;
 432                         }
 433                 else if (!strcmp(*args, "-index"))
 434                         {
 435                         if (args[1])
 436                                 {
 437                                 args++;
 438                                 ridx_filename = *args;
 439                                 }
 440                         else badarg = 1;
 441                         }
 442                 else if (!strcmp(*args, "-CA"))
 443                         {
 444                         if (args[1])
 445                                 {
 446                                 args++;
 447                                 rca_filename = *args;
 448                                 }
 449                         else badarg = 1;
 450                         }
 451                 else if (!strcmp (*args, "-nmin"))
 452                         {
 453                         if (args[1])
 454                                 {
 455                                 args++;
 456                                 nmin = atol(*args);
 457                                 if (nmin < 0)
 458                                         {
 459                                         BIO_printf(bio_err,
 460                                                 "Illegal update period %s\n",
 461                                                 *args);
 462                                         badarg = 1;
 463                                         }
 464                                 }
 465                                 if (ndays == -1)
 466                                         ndays = 0;
 467                         else badarg = 1;
 468                         }
 469                 else if (!strcmp (*args, "-nrequest"))
 470                         {
 471                         if (args[1])
 472                                 {
 473                                 args++;
 474                                 accept_count = atol(*args);
 475                                 if (accept_count < 0)
 476                                         {
 477                                         BIO_printf(bio_err,
 478                                                 "Illegal accept count %s\n",
 479                                                 *args);
 480                                         badarg = 1;
 481                                         }
 482                                 }
 483                         else badarg = 1;
 484                         }
 485                 else if (!strcmp (*args, "-ndays"))
 486                         {
 487                         if (args[1])
 488                                 {
 489                                 args++;
 490                                 ndays = atol(*args);
 491                                 if (ndays < 0)
 492                                         {
 493                                         BIO_printf(bio_err,
 494                                                 "Illegal update period %s\n",
 495                                                 *args);
 496                                         badarg = 1;
 497                                         }
 498                                 }
 499                         else badarg = 1;
 500                         }
 501                 else if (!strcmp(*args, "-rsigner"))
 502                         {
 503                         if (args[1])
 504                                 {
 505                                 args++;
 506                                 rsignfile = *args;
 507                                 }
 508                         else badarg = 1;
 509                         }
 510                 else if (!strcmp(*args, "-rkey"))
 511                         {
 512                         if (args[1])
 513                                 {
 514                                 args++;
 515                                 rkeyfile = *args;
 516                                 }
 517                         else badarg = 1;
 518                         }
 519                 else if (!strcmp(*args, "-rother"))
 520                         {
 521                         if (args[1])
 522                                 {
 523                                 args++;
 524                                 rcertfile = *args;
 525                                 }
 526                         else badarg = 1;
 527                         }
 528                 else badarg = 1;
 529                 args++;
 530                 }
 531
 532         /* Have we anything to do? */
 533         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 534
 535         if (badarg)
 536                 {
 537                 BIO_printf (bio_err, "OCSP utility\n");
 538                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 539                 BIO_printf (bio_err, "where options are\n");
 540                 BIO_printf (bio_err, "-out file          output filename\n");
 541                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 542                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 543                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 544                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 545                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 546                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 547                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 548                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 549                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 550                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 551                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 552                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 553                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 554                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 555                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 556                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 557                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 558                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 559                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 560                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 561                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 562                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 563                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 564                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 565                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 566                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 567                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 568                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 569                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 570                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 571                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 572                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 573                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 574                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 575                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 576                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 577                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 578                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 579                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 580                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 581                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 582                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 583                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 584                 goto end;
 585                 }
 586
 587         if(outfile) out = BIO_new_file(outfile, "w");
 588         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 589
 590         if(!out)
 591                 {
 592                 BIO_printf(bio_err, "Error opening output file\n");
 593                 goto end;
 594                 }
 595
 596         if (!req && (add_nonce != 2)) add_nonce = 0;
 597
 598         if (!req && reqin)
 599                 {
 600                 derbio = BIO_new_file(reqin, "rb");
 601                 if (!derbio)
 602                         {
 603                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 604                         goto end;
 605                         }
 606                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 607                 BIO_free(derbio);
 608                 if(!req)
 609                         {
 610                         BIO_printf(bio_err, "Error reading OCSP request\n");
 611                         goto end;
 612                         }
 613                 }
 614
 615         if (!req && port)
 616                 {
 617                 acbio = init_responder(port);
 618                 if (!acbio)
 619                         goto end;
 620                 }
 621
 622         if (rsignfile && !rdb)
 623                 {
 624                 if (!rkeyfile) rkeyfile = rsignfile;
 625                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 626                         NULL, e, "responder certificate");
 627                 if (!rsigner)
 628                         {
 629                         BIO_printf(bio_err, "Error loading responder certificate\n");
 630                         goto end;
 631                         }
 632                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 633                         NULL, e, "CA certificate");
 634                 if (rcertfile)
 635                         {
 636                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 637                                 NULL, e, "responder other certificates");
 638                         if (!rother) goto end;
 639                         }
 640                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 641                         "responder private key");
 642                 if (!rkey)
 643                         goto end;
 644                 }
 645         if(acbio)
 646                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 647
 648         redo_accept:
 649
 650         if (acbio)
 651                 {
 652                 if (!do_responder(&req, &cbio, acbio, port))
 653                         goto end;
 654                 if (!req)
 655                         {
 656                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 657                         send_ocsp_response(cbio, resp);
 658                         goto done_resp;
 659                         }
 660                 }
 661
 662         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 663                 {
 664                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 665                 goto end;
 666                 }
 667
 668         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 669
 670         if (signfile)
 671                 {
 672                 if (!keyfile) keyfile = signfile;
 673                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 674                         NULL, e, "signer certificate");
 675                 if (!signer)
 676                         {
 677                         BIO_printf(bio_err, "Error loading signer certificate\n");
 678                         goto end;
 679                         }
 680                 if (sign_certfile)
 681                         {
 682                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 683                                 NULL, e, "signer certificates");
 684                         if (!sign_other) goto end;
 685                         }
 686                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 687                         "signer private key");
 688                 if (!key)
 689                         goto end;
 690                 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
 691                         {
 692                         BIO_printf(bio_err, "Error signing OCSP request\n");
 693                         goto end;
 694                         }
 695                 }
 696
 697         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 698
 699         if (reqout)
 700                 {
 701                 derbio = BIO_new_file(reqout, "wb");
 702                 if(!derbio)
 703                         {
 704                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 705                         goto end;
 706                         }
 707                 i2d_OCSP_REQUEST_bio(derbio, req);
 708                 BIO_free(derbio);
 709                 }
 710
 711         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 712                 {
 713                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 714                 goto end;
 715                 }
 716
 717         if (ridx_filename && !rdb)
 718                 {
 719                 rdb = load_index(ridx_filename, NULL);
 720                 if (!rdb) goto end;
 721                 if (!index_index(rdb)) goto end;
 722                 }
 723
 724         if (rdb)
 725                 {
 726                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 727                 if (cbio)
 728                         send_ocsp_response(cbio, resp);
 729                 }
 730         else if (host)
 731                 {
 732 #ifndef OPENSSL_NO_SOCK
 733                 resp = process_responder(bio_err, req, host, path,
 734                                                 port, use_ssl, req_timeout);
 735                 if (!resp)
 736                         goto end;
 737 #else
 738                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 739                 goto end;
 740 #endif
 741                 }
 742         else if (respin)
 743                 {
 744                 derbio = BIO_new_file(respin, "rb");
 745                 if (!derbio)
 746                         {
 747                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 748                         goto end;
 749                         }
 750                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 751                 BIO_free(derbio);
 752                 if(!resp)
 753                         {
 754                         BIO_printf(bio_err, "Error reading OCSP response\n");
 755                         goto end;
 756                         }
 757
 758                 }
 759         else
 760                 {
 761                 ret = 0;
 762                 goto end;
 763                 }
 764
 765         done_resp:
 766
 767         if (respout)
 768                 {
 769                 derbio = BIO_new_file(respout, "wb");
 770                 if(!derbio)
 771                         {
 772                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 773                         goto end;
 774                         }
 775                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 776                 BIO_free(derbio);
 777                 }
 778
 779         i = OCSP_response_status(resp);
 780
 781         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 782                 {
 783                 BIO_printf(out, "Responder Error: %s (%d)\n",
 784                                 OCSP_response_status_str(i), i);
 785                 if (ignore_err)
 786                         goto redo_accept;
 787                 ret = 0;
 788                 goto end;
 789                 }
 790
 791         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 792
 793         /* If running as responder don't verify our own response */
 794         if (cbio)
 795                 {
 796                 if (accept_count > 0)
 797                         accept_count--;
 798                 /* Redo if more connections needed */
 799                 if (accept_count)
 800                         {
 801                         BIO_free_all(cbio);
 802                         cbio = NULL;
 803                         OCSP_REQUEST_free(req);
 804                         req = NULL;
 805                         OCSP_RESPONSE_free(resp);
 806                         resp = NULL;
 807                         goto redo_accept;
 808                         }
 809                 goto end;
 810                 }
 811
 812         if (!store)
 813                 store = setup_verify(bio_err, CAfile, CApath);
 814         if (!store)
 815                 goto end;
 816         if (verify_certfile)
 817                 {
 818                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 819                         NULL, e, "validator certificate");
 820                 if (!verify_other) goto end;
 821                 }
 822
 823         bs = OCSP_response_get1_basic(resp);
 824
 825         if (!bs)
 826                 {
 827                 BIO_printf(bio_err, "Error parsing response\n");
 828                 goto end;
 829                 }
 830
 831         if (!noverify)
 832                 {
 833                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 834                         {
 835                         if (i == -1)
 836                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 837                         else
 838                                 {
 839                                 BIO_printf(bio_err, "Nonce Verify error\n");
 840                                 goto end;
 841                                 }
 842                         }
 843
 844                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 845                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 846
 847                 if(i <= 0)
 848                         {
 849                         BIO_printf(bio_err, "Response Verify Failure\n");
 850                         ERR_print_errors(bio_err);
 851                         }
 852                 else
 853                         BIO_printf(bio_err, "Response verify OK\n");
 854
 855                 }
 856
 857         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 858                 goto end;
 859
 860         ret = 0;
 861
 862 end:
 863         ERR_print_errors(bio_err);
 864         X509_free(signer);
 865         X509_STORE_free(store);
 866         EVP_PKEY_free(key);
 867         EVP_PKEY_free(rkey);
 868         X509_free(issuer);
 869         X509_free(cert);
 870         X509_free(rsigner);
 871         X509_free(rca_cert);
 872         free_index(rdb);
 873         BIO_free_all(cbio);
 874         BIO_free_all(acbio);
 875         BIO_free(out);
 876         OCSP_REQUEST_free(req);
 877         OCSP_RESPONSE_free(resp);
 878         OCSP_BASICRESP_free(bs);
 879         sk_free(reqnames);
 880         sk_OCSP_CERTID_free(ids);
 881         sk_X509_pop_free(sign_other, X509_free);
 882         sk_X509_pop_free(verify_other, X509_free);
 883
 884         if (thost)
 885                 OPENSSL_free(thost);
 886         if (tport)
 887                 OPENSSL_free(tport);
 888         if (tpath)
 889                 OPENSSL_free(tpath);
 890
 891         OPENSSL_EXIT(ret);
 892 }
 893
 894 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
 895                                 STACK_OF(OCSP_CERTID) *ids)
 896         {
 897         OCSP_CERTID *id;
 898         if(!issuer)
 899                 {
 900                 BIO_printf(bio_err, "No issuer certificate specified\n");
 901                 return 0;
 902                 }
 903         if(!*req) *req = OCSP_REQUEST_new();
 904         if(!*req) goto err;
 905         id = OCSP_cert_to_id(NULL, cert, issuer);
 906         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 907         if(!OCSP_request_add0_id(*req, id)) goto err;
 908         return 1;
 909
 910         err:
 911         BIO_printf(bio_err, "Error Creating OCSP request\n");
 912         return 0;
 913         }
 914
 915 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
 916                                 STACK_OF(OCSP_CERTID) *ids)
 917         {
 918         OCSP_CERTID *id;
 919         X509_NAME *iname;
 920         ASN1_BIT_STRING *ikey;
 921         ASN1_INTEGER *sno;
 922         if(!issuer)
 923                 {
 924                 BIO_printf(bio_err, "No issuer certificate specified\n");
 925                 return 0;
 926                 }
 927         if(!*req) *req = OCSP_REQUEST_new();
 928         if(!*req) goto err;
 929         iname = X509_get_subject_name(issuer);
 930         ikey = X509_get0_pubkey_bitstr(issuer);
 931         sno = s2i_ASN1_INTEGER(NULL, serial);
 932         if(!sno)
 933                 {
 934                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 935                 return 0;
 936                 }
 937         id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
 938         ASN1_INTEGER_free(sno);
 939         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 940         if(!OCSP_request_add0_id(*req, id)) goto err;
 941         return 1;
 942
 943         err:
 944         BIO_printf(bio_err, "Error Creating OCSP request\n");
 945         return 0;
 946         }
 947
 948 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 949                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 950                                         long nsec, long maxage)
 951         {
 952         OCSP_CERTID *id;
 953         char *name;
 954         int i;
 955
 956         int status, reason;
 957
 958         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 959
 960         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 961                 return 1;
 962
 963         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 964                 {
 965                 id = sk_OCSP_CERTID_value(ids, i);
 966                 name = sk_value(names, i);
 967                 BIO_printf(out, "%s: ", name);
 968
 969                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 970                                         &rev, &thisupd, &nextupd))
 971                         {
 972                         BIO_puts(out, "ERROR: No Status found.\n");
 973                         continue;
 974                         }
 975
 976                 /* Check validity: if invalid write to output BIO so we
 977                  * know which response this refers to.
 978                  */
 979                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 980                         {
 981                         BIO_puts(out, "WARNING: Status times invalid.\n");
 982                         ERR_print_errors(out);
 983                         }
 984                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 985
 986                 BIO_puts(out, "\tThis Update: ");
 987                 ASN1_GENERALIZEDTIME_print(out, thisupd);
 988                 BIO_puts(out, "\n");
 989
 990                 if(nextupd)
 991                         {
 992                         BIO_puts(out, "\tNext Update: ");
 993                         ASN1_GENERALIZEDTIME_print(out, nextupd);
 994                         BIO_puts(out, "\n");
 995                         }
 996
 997                 if (status != V_OCSP_CERTSTATUS_REVOKED)
 998                         continue;
 999
1000                 if (reason != -1)
1001                         BIO_printf(out, "\tReason: %s\n",
1002                                 OCSP_crl_reason_str(reason));
1003
1004                 BIO_puts(out, "\tRevocation Time: ");
1005                 ASN1_GENERALIZEDTIME_print(out, rev);
1006                 BIO_puts(out, "\n");
1007                 }
1008
1009         return 1;
1010         }
1011
1012
1013 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1014                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1015                         STACK_OF(X509) *rother, unsigned long flags,
1016                         int nmin, int ndays)
1017         {
1018         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1019         OCSP_CERTID *cid, *ca_id = NULL;
1020         OCSP_BASICRESP *bs = NULL;
1021         int i, id_count, ret = 1;
1022
1023
1024         id_count = OCSP_request_onereq_count(req);
1025
1026         if (id_count <= 0)
1027                 {
1028                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1029                 goto end;
1030                 }
1031
1032         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1033
1034         bs = OCSP_BASICRESP_new();
1035         thisupd = X509_gmtime_adj(NULL, 0);
1036         if (ndays != -1)
1037                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1038
1039         /* Examine each certificate id in the request */
1040         for (i = 0; i < id_count; i++)
1041                 {
1042                 OCSP_ONEREQ *one;
1043                 ASN1_INTEGER *serial;
1044                 char **inf;
1045                 one = OCSP_request_onereq_get0(req, i);
1046                 cid = OCSP_onereq_get0_id(one);
1047                 /* Is this request about our CA? */
1048                 if (OCSP_id_issuer_cmp(ca_id, cid))
1049                         {
1050                         OCSP_basic_add1_status(bs, cid,
1051                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1052                                                 0, NULL,
1053                                                 thisupd, nextupd);
1054                         continue;
1055                         }
1056                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1057                 inf = lookup_serial(db, serial);
1058                 if (!inf)
1059                         OCSP_basic_add1_status(bs, cid,
1060                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1061                                                 0, NULL,
1062                                                 thisupd, nextupd);
1063                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1064                         OCSP_basic_add1_status(bs, cid,
1065                                                 V_OCSP_CERTSTATUS_GOOD,
1066                                                 0, NULL,
1067                                                 thisupd, nextupd);
1068                 else if (inf[DB_type][0] == DB_TYPE_REV)
1069                         {
1070                         ASN1_OBJECT *inst = NULL;
1071                         ASN1_TIME *revtm = NULL;
1072                         ASN1_GENERALIZEDTIME *invtm = NULL;
1073                         OCSP_SINGLERESP *single;
1074                         int reason = -1;
1075                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1076                         single = OCSP_basic_add1_status(bs, cid,
1077                                                 V_OCSP_CERTSTATUS_REVOKED,
1078                                                 reason, revtm,
1079                                                 thisupd, nextupd);
1080                         if (invtm)
1081                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1082                         else if (inst)
1083                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1084                         ASN1_OBJECT_free(inst);
1085                         ASN1_TIME_free(revtm);
1086                         ASN1_GENERALIZEDTIME_free(invtm);
1087                         }
1088                 }
1089
1090         OCSP_copy_nonce(bs, req);
1091
1092         OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);
1093
1094         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1095
1096         end:
1097         ASN1_TIME_free(thisupd);
1098         ASN1_TIME_free(nextupd);
1099         OCSP_CERTID_free(ca_id);
1100         OCSP_BASICRESP_free(bs);
1101         return ret;
1102
1103         }
1104
1105 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1106         {
1107         int i;
1108         BIGNUM *bn = NULL;
1109         char *itmp, *row[DB_NUMBER],**rrow;
1110         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1111         bn = ASN1_INTEGER_to_BN(ser,NULL);
1112         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1113         if (BN_is_zero(bn))
1114                 itmp = BUF_strdup("00");
1115         else
1116                 itmp = BN_bn2hex(bn);
1117         row[DB_serial] = itmp;
1118         BN_free(bn);
1119         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1120         OPENSSL_free(itmp);
1121         return rrow;
1122         }
1123
1124 /* Quick and dirty OCSP server: read in and parse input request */
1125
1126 static BIO *init_responder(char *port)
1127         {
1128         BIO *acbio = NULL, *bufbio = NULL;
1129         bufbio = BIO_new(BIO_f_buffer());
1130         if (!bufbio)
1131                 goto err;
1132 #ifndef OPENSSL_NO_SOCK
1133         acbio = BIO_new_accept(port);
1134 #else
1135         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1136 #endif
1137         if (!acbio)
1138                 goto err;
1139         BIO_set_accept_bios(acbio, bufbio);
1140         bufbio = NULL;
1141
1142         if (BIO_do_accept(acbio) <= 0)
1143                 {
1144                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1145                         ERR_print_errors(bio_err);
1146                         goto err;
1147                 }
1148
1149         return acbio;
1150
1151         err:
1152         BIO_free_all(acbio);
1153         BIO_free(bufbio);
1154         return NULL;
1155         }
1156
1157 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1158         {
1159         int have_post = 0, len;
1160         OCSP_REQUEST *req = NULL;
1161         char inbuf[1024];
1162         BIO *cbio = NULL;
1163
1164         if (BIO_do_accept(acbio) <= 0)
1165                 {
1166                         BIO_printf(bio_err, "Error accepting connection\n");
1167                         ERR_print_errors(bio_err);
1168                         return 0;
1169                 }
1170
1171         cbio = BIO_pop(acbio);
1172         *pcbio = cbio;
1173
1174         for(;;)
1175                 {
1176                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1177                 if (len <= 0)
1178                         return 1;
1179                 /* Look for "POST" signalling start of query */
1180                 if (!have_post)
1181                         {
1182                         if(strncmp(inbuf, "POST", 4))
1183                                 {
1184                                 BIO_printf(bio_err, "Invalid request\n");
1185                                 return 1;
1186                                 }
1187                         have_post = 1;
1188                         }
1189                 /* Look for end of headers */
1190                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1191                         break;
1192                 }
1193
1194         /* Try to read OCSP request */
1195
1196         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1197
1198         if (!req)
1199                 {
1200                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1201                 ERR_print_errors(bio_err);
1202                 }
1203
1204         *preq = req;
1205
1206         return 1;
1207
1208         }
1209
1210 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1211         {
1212         char http_resp[] =
1213                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1214                 "Content-Length: %d\r\n\r\n";
1215         if (!cbio)
1216                 return 0;
1217         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1218         i2d_OCSP_RESPONSE_bio(cbio, resp);
1219         (void)BIO_flush(cbio);
1220         return 1;
1221         }
1222
1223 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1224                                 OCSP_REQUEST *req, int req_timeout)
1225         {
1226         int fd;
1227         int rv;
1228         OCSP_REQ_CTX *ctx = NULL;
1229         OCSP_RESPONSE *rsp = NULL;
1230         fd_set confds;
1231         struct timeval tv;
1232
1233         if (req_timeout != -1)
1234                 BIO_set_nbio(cbio, 1);
1235
1236         rv = BIO_do_connect(cbio);
1237
1238         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1239                 {
1240                 BIO_puts(err, "Error connecting BIO\n");
1241                 return NULL;
1242                 }
1243
1244         if (req_timeout == -1)
1245                 return OCSP_sendreq_bio(cbio, path, req);
1246
1247         if (BIO_get_fd(cbio, &fd) <= 0)
1248                 {
1249                 BIO_puts(err, "Can't get connection fd\n");
1250                 goto err;
1251                 }
1252
1253         if (rv <= 0)
1254                 {
1255                 FD_ZERO(&confds);
1256                 openssl_fdset(fd, &confds);
1257                 tv.tv_usec = 0;
1258                 tv.tv_sec = req_timeout;
1259                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1260                 if (rv == 0)
1261                         {
1262                         BIO_puts(err, "Timeout on connect\n");
1263                         return NULL;
1264                         }
1265                 }
1266
1267
1268         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1269         if (!ctx)
1270                 return NULL;
1271
1272         for (;;)
1273                 {
1274                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1275                 if (rv != -1)
1276                         break;
1277                 FD_ZERO(&confds);
1278                 openssl_fdset(fd, &confds);
1279                 tv.tv_usec = 0;
1280                 tv.tv_sec = req_timeout;
1281                 if (BIO_should_read(cbio))
1282                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1283                 else if (BIO_should_write(cbio))
1284                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1285                 else
1286                         {
1287                         BIO_puts(err, "Unexpected retry condition\n");
1288                         goto err;
1289                         }
1290                 if (rv == 0)
1291                         {
1292                         BIO_puts(err, "Timeout on request\n");
1293                         break;
1294                         }
1295                 if (rv == -1)
1296                         {
1297                         BIO_puts(err, "Select error\n");
1298                         break;
1299                         }
1300
1301                 }
1302         err:
1303         if (ctx)
1304                 OCSP_REQ_CTX_free(ctx);
1305
1306         return rsp;
1307         }
1308
1309 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1310                         char *host, char *path, char *port, int use_ssl,
1311                         int req_timeout)
1312         {
1313         BIO *cbio = NULL;
1314         SSL_CTX *ctx = NULL;
1315         OCSP_RESPONSE *resp = NULL;
1316         cbio = BIO_new_connect(host);
1317         if (!cbio)
1318                 {
1319                 BIO_printf(err, "Error creating connect BIO\n");
1320                 goto end;
1321                 }
1322         if (port) BIO_set_conn_port(cbio, port);
1323         if (use_ssl == 1)
1324                 {
1325                 BIO *sbio;
1326 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1327                 ctx = SSL_CTX_new(SSLv23_client_method());
1328 #elif !defined(OPENSSL_NO_SSL3)
1329                 ctx = SSL_CTX_new(SSLv3_client_method());
1330 #elif !defined(OPENSSL_NO_SSL2)
1331                 ctx = SSL_CTX_new(SSLv2_client_method());
1332 #else
1333                 BIO_printf(err, "SSL is disabled\n");
1334                         goto end;
1335 #endif
1336                 if (ctx == NULL)
1337                         {
1338                         BIO_printf(err, "Error creating SSL context.\n");
1339                         goto end;
1340                         }
1341                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1342                 sbio = BIO_new_ssl(ctx, 1);
1343                 cbio = BIO_push(sbio, cbio);
1344                 }
1345         resp = query_responder(err, cbio, path, req, req_timeout);
1346         if (!resp)
1347                 BIO_printf(bio_err, "Error querying OCSP responder\n");
1348         end:
1349         if (ctx)
1350                 SSL_CTX_free(ctx);
1351         if (cbio)
1352                 BIO_free_all(cbio);
1353         return resp;
1354         }
1355
1356 #endif