apps/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #ifndef OPENSSL_NO_OCSP
  59
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <time.h>
  64 #include "apps.h" /* needs to be included before the openssl headers! */
  65 #include <openssl/e_os2.h>
  66 #include <openssl/ssl.h>
  67 #include <openssl/evp.h>
  68
  69 #if defined(NETWARE_CLIB)
  70 #  ifdef NETWARE_BSDSOCK
  71 #    include <sys/socket.h>
  72 #    include <sys/bsdskt.h>
  73 #  else
  74 #    include <novsock2.h>
  75 #  endif
  76 #elif defined(NETWARE_LIBC)
  77 #  ifdef NETWARE_BSDSOCK
  78 #    include <sys/select.h>
  79 #  else
  80 #    include <novsock2.h>
  81 #  endif
  82 #endif
  83
  84 /* Maximum leeway in validity period: default 5 minutes */
  85 #define MAX_VALIDITY_PERIOD     (5 * 60)
  86
  87 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  88                                 STACK_OF(OCSP_CERTID) *ids);
  89 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
  90                                 STACK_OF(OCSP_CERTID) *ids);
  91 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  92                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  93                                 long nsec, long maxage);
  94
  95 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  96                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  97                         STACK_OF(X509) *rother, unsigned long flags,
  98                         int nmin, int ndays);
  99
 100 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 101 static BIO *init_responder(char *port);
 102 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 103 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 104 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 105                                 OCSP_REQUEST *req, int req_timeout);
 106
 107 #undef PROG
 108 #define PROG ocsp_main
 109
 110 int MAIN(int, char **);
 111
 112 int MAIN(int argc, char **argv)
 113         {
 114         ENGINE *e = NULL;
 115         char **args;
 116         char *host = NULL, *port = NULL, *path = "/";
 117         char *reqin = NULL, *respin = NULL;
 118         char *reqout = NULL, *respout = NULL;
 119         char *signfile = NULL, *keyfile = NULL;
 120         char *rsignfile = NULL, *rkeyfile = NULL;
 121         char *outfile = NULL;
 122         int add_nonce = 1, noverify = 0, use_ssl = -1;
 123         OCSP_REQUEST *req = NULL;
 124         OCSP_RESPONSE *resp = NULL;
 125         OCSP_BASICRESP *bs = NULL;
 126         X509 *issuer = NULL, *cert = NULL;
 127         X509 *signer = NULL, *rsigner = NULL;
 128         EVP_PKEY *key = NULL, *rkey = NULL;
 129         BIO *acbio = NULL, *cbio = NULL;
 130         BIO *derbio = NULL;
 131         BIO *out = NULL;
 132         int req_timeout = -1;
 133         int req_text = 0, resp_text = 0;
 134         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 135         char *CAfile = NULL, *CApath = NULL;
 136         X509_STORE *store = NULL;
 137         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 138         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 139         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 140         int ret = 1;
 141         int accept_count = -1;
 142         int badarg = 0;
 143         int i;
 144         int ignore_err = 0;
 145         STACK *reqnames = NULL;
 146         STACK_OF(OCSP_CERTID) *ids = NULL;
 147
 148         X509 *rca_cert = NULL;
 149         char *ridx_filename = NULL;
 150         char *rca_filename = NULL;
 151         CA_DB *rdb = NULL;
 152         int nmin = 0, ndays = -1;
 153         const EVP_MD *cert_id_md = NULL;
 154
 155         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 156
 157         if (!load_config(bio_err, NULL))
 158                 goto end;
 159         SSL_load_error_strings();
 160         OpenSSL_add_ssl_algorithms();
 161         args = argv + 1;
 162         reqnames = sk_new_null();
 163         ids = sk_OCSP_CERTID_new_null();
 164         while (!badarg && *args && *args[0] == '-')
 165                 {
 166                 if (!strcmp(*args, "-out"))
 167                         {
 168                         if (args[1])
 169                                 {
 170                                 args++;
 171                                 outfile = *args;
 172                                 }
 173                         else badarg = 1;
 174                         }
 175                 else if (!strcmp(*args, "-timeout"))
 176                         {
 177                         if (args[1])
 178                                 {
 179                                 args++;
 180                                 req_timeout = atol(*args);
 181                                 if (req_timeout < 0)
 182                                         {
 183                                         BIO_printf(bio_err,
 184                                                 "Illegal timeout value %s\n",
 185                                                 *args);
 186                                         badarg = 1;
 187                                         }
 188                                 }
 189                         else badarg = 1;
 190                         }
 191                 else if (!strcmp(*args, "-url"))
 192                         {
 193                         if (args[1])
 194                                 {
 195                                 args++;
 196                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 197                                         {
 198                                         BIO_printf(bio_err, "Error parsing URL\n");
 199                                         badarg = 1;
 200                                         }
 201                                 }
 202                         else badarg = 1;
 203                         }
 204                 else if (!strcmp(*args, "-host"))
 205                         {
 206                         if (args[1])
 207                                 {
 208                                 args++;
 209                                 host = *args;
 210                                 }
 211                         else badarg = 1;
 212                         }
 213                 else if (!strcmp(*args, "-port"))
 214                         {
 215                         if (args[1])
 216                                 {
 217                                 args++;
 218                                 port = *args;
 219                                 }
 220                         else badarg = 1;
 221                         }
 222                 else if (!strcmp(*args, "-ignore_err"))
 223                         ignore_err = 1;
 224                 else if (!strcmp(*args, "-noverify"))
 225                         noverify = 1;
 226                 else if (!strcmp(*args, "-nonce"))
 227                         add_nonce = 2;
 228                 else if (!strcmp(*args, "-no_nonce"))
 229                         add_nonce = 0;
 230                 else if (!strcmp(*args, "-resp_no_certs"))
 231                         rflags |= OCSP_NOCERTS;
 232                 else if (!strcmp(*args, "-resp_key_id"))
 233                         rflags |= OCSP_RESPID_KEY;
 234                 else if (!strcmp(*args, "-no_certs"))
 235                         sign_flags |= OCSP_NOCERTS;
 236                 else if (!strcmp(*args, "-no_signature_verify"))
 237                         verify_flags |= OCSP_NOSIGS;
 238                 else if (!strcmp(*args, "-no_cert_verify"))
 239                         verify_flags |= OCSP_NOVERIFY;
 240                 else if (!strcmp(*args, "-no_chain"))
 241                         verify_flags |= OCSP_NOCHAIN;
 242                 else if (!strcmp(*args, "-no_cert_checks"))
 243                         verify_flags |= OCSP_NOCHECKS;
 244                 else if (!strcmp(*args, "-no_explicit"))
 245                         verify_flags |= OCSP_NOEXPLICIT;
 246                 else if (!strcmp(*args, "-trust_other"))
 247                         verify_flags |= OCSP_TRUSTOTHER;
 248                 else if (!strcmp(*args, "-no_intern"))
 249                         verify_flags |= OCSP_NOINTERN;
 250                 else if (!strcmp(*args, "-text"))
 251                         {
 252                         req_text = 1;
 253                         resp_text = 1;
 254                         }
 255                 else if (!strcmp(*args, "-req_text"))
 256                         req_text = 1;
 257                 else if (!strcmp(*args, "-resp_text"))
 258                         resp_text = 1;
 259                 else if (!strcmp(*args, "-reqin"))
 260                         {
 261                         if (args[1])
 262                                 {
 263                                 args++;
 264                                 reqin = *args;
 265                                 }
 266                         else badarg = 1;
 267                         }
 268                 else if (!strcmp(*args, "-respin"))
 269                         {
 270                         if (args[1])
 271                                 {
 272                                 args++;
 273                                 respin = *args;
 274                                 }
 275                         else badarg = 1;
 276                         }
 277                 else if (!strcmp(*args, "-signer"))
 278                         {
 279                         if (args[1])
 280                                 {
 281                                 args++;
 282                                 signfile = *args;
 283                                 }
 284                         else badarg = 1;
 285                         }
 286                 else if (!strcmp (*args, "-VAfile"))
 287                         {
 288                         if (args[1])
 289                                 {
 290                                 args++;
 291                                 verify_certfile = *args;
 292                                 verify_flags |= OCSP_TRUSTOTHER;
 293                                 }
 294                         else badarg = 1;
 295                         }
 296                 else if (!strcmp(*args, "-sign_other"))
 297                         {
 298                         if (args[1])
 299                                 {
 300                                 args++;
 301                                 sign_certfile = *args;
 302                                 }
 303                         else badarg = 1;
 304                         }
 305                 else if (!strcmp(*args, "-verify_other"))
 306                         {
 307                         if (args[1])
 308                                 {
 309                                 args++;
 310                                 verify_certfile = *args;
 311                                 }
 312                         else badarg = 1;
 313                         }
 314                 else if (!strcmp (*args, "-CAfile"))
 315                         {
 316                         if (args[1])
 317                                 {
 318                                 args++;
 319                                 CAfile = *args;
 320                                 }
 321                         else badarg = 1;
 322                         }
 323                 else if (!strcmp (*args, "-CApath"))
 324                         {
 325                         if (args[1])
 326                                 {
 327                                 args++;
 328                                 CApath = *args;
 329                                 }
 330                         else badarg = 1;
 331                         }
 332                 else if (!strcmp (*args, "-validity_period"))
 333                         {
 334                         if (args[1])
 335                                 {
 336                                 args++;
 337                                 nsec = atol(*args);
 338                                 if (nsec < 0)
 339                                         {
 340                                         BIO_printf(bio_err,
 341                                                 "Illegal validity period %s\n",
 342                                                 *args);
 343                                         badarg = 1;
 344                                         }
 345                                 }
 346                         else badarg = 1;
 347                         }
 348                 else if (!strcmp (*args, "-status_age"))
 349                         {
 350                         if (args[1])
 351                                 {
 352                                 args++;
 353                                 maxage = atol(*args);
 354                                 if (maxage < 0)
 355                                         {
 356                                         BIO_printf(bio_err,
 357                                                 "Illegal validity age %s\n",
 358                                                 *args);
 359                                         badarg = 1;
 360                                         }
 361                                 }
 362                         else badarg = 1;
 363                         }
 364                  else if (!strcmp(*args, "-signkey"))
 365                         {
 366                         if (args[1])
 367                                 {
 368                                 args++;
 369                                 keyfile = *args;
 370                                 }
 371                         else badarg = 1;
 372                         }
 373                 else if (!strcmp(*args, "-reqout"))
 374                         {
 375                         if (args[1])
 376                                 {
 377                                 args++;
 378                                 reqout = *args;
 379                                 }
 380                         else badarg = 1;
 381                         }
 382                 else if (!strcmp(*args, "-respout"))
 383                         {
 384                         if (args[1])
 385                                 {
 386                                 args++;
 387                                 respout = *args;
 388                                 }
 389                         else badarg = 1;
 390                         }
 391                  else if (!strcmp(*args, "-path"))
 392                         {
 393                         if (args[1])
 394                                 {
 395                                 args++;
 396                                 path = *args;
 397                                 }
 398                         else badarg = 1;
 399                         }
 400                 else if (!strcmp(*args, "-issuer"))
 401                         {
 402                         if (args[1])
 403                                 {
 404                                 args++;
 405                                 X509_free(issuer);
 406                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 407                                         NULL, e, "issuer certificate");
 408                                 if(!issuer) goto end;
 409                                 }
 410                         else badarg = 1;
 411                         }
 412                 else if (!strcmp (*args, "-cert"))
 413                         {
 414                         if (args[1])
 415                                 {
 416                                 args++;
 417                                 X509_free(cert);
 418                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 419                                         NULL, e, "certificate");
 420                                 if(!cert) goto end;
 421                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 422                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 423                                         goto end;
 424                                 if(!sk_push(reqnames, *args))
 425                                         goto end;
 426                                 }
 427                         else badarg = 1;
 428                         }
 429                 else if (!strcmp(*args, "-serial"))
 430                         {
 431                         if (args[1])
 432                                 {
 433                                 args++;
 434                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 435                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 436                                         goto end;
 437                                 if(!sk_push(reqnames, *args))
 438                                         goto end;
 439                                 }
 440                         else badarg = 1;
 441                         }
 442                 else if (!strcmp(*args, "-index"))
 443                         {
 444                         if (args[1])
 445                                 {
 446                                 args++;
 447                                 ridx_filename = *args;
 448                                 }
 449                         else badarg = 1;
 450                         }
 451                 else if (!strcmp(*args, "-CA"))
 452                         {
 453                         if (args[1])
 454                                 {
 455                                 args++;
 456                                 rca_filename = *args;
 457                                 }
 458                         else badarg = 1;
 459                         }
 460                 else if (!strcmp (*args, "-nmin"))
 461                         {
 462                         if (args[1])
 463                                 {
 464                                 args++;
 465                                 nmin = atol(*args);
 466                                 if (nmin < 0)
 467                                         {
 468                                         BIO_printf(bio_err,
 469                                                 "Illegal update period %s\n",
 470                                                 *args);
 471                                         badarg = 1;
 472                                         }
 473                                 }
 474                                 if (ndays == -1)
 475                                         ndays = 0;
 476                         else badarg = 1;
 477                         }
 478                 else if (!strcmp (*args, "-nrequest"))
 479                         {
 480                         if (args[1])
 481                                 {
 482                                 args++;
 483                                 accept_count = atol(*args);
 484                                 if (accept_count < 0)
 485                                         {
 486                                         BIO_printf(bio_err,
 487                                                 "Illegal accept count %s\n",
 488                                                 *args);
 489                                         badarg = 1;
 490                                         }
 491                                 }
 492                         else badarg = 1;
 493                         }
 494                 else if (!strcmp (*args, "-ndays"))
 495                         {
 496                         if (args[1])
 497                                 {
 498                                 args++;
 499                                 ndays = atol(*args);
 500                                 if (ndays < 0)
 501                                         {
 502                                         BIO_printf(bio_err,
 503                                                 "Illegal update period %s\n",
 504                                                 *args);
 505                                         badarg = 1;
 506                                         }
 507                                 }
 508                         else badarg = 1;
 509                         }
 510                 else if (!strcmp(*args, "-rsigner"))
 511                         {
 512                         if (args[1])
 513                                 {
 514                                 args++;
 515                                 rsignfile = *args;
 516                                 }
 517                         else badarg = 1;
 518                         }
 519                 else if (!strcmp(*args, "-rkey"))
 520                         {
 521                         if (args[1])
 522                                 {
 523                                 args++;
 524                                 rkeyfile = *args;
 525                                 }
 526                         else badarg = 1;
 527                         }
 528                 else if (!strcmp(*args, "-rother"))
 529                         {
 530                         if (args[1])
 531                                 {
 532                                 args++;
 533                                 rcertfile = *args;
 534                                 }
 535                         else badarg = 1;
 536                         }
 537                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 538                         {
 539                         badarg = 1;
 540                         }
 541                 args++;
 542                 }
 543
 544         /* Have we anything to do? */
 545         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 546
 547         if (badarg)
 548                 {
 549                 BIO_printf (bio_err, "OCSP utility\n");
 550                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 551                 BIO_printf (bio_err, "where options are\n");
 552                 BIO_printf (bio_err, "-out file          output filename\n");
 553                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 554                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 555                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 556                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 557                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 558                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 559                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 560                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 561                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 562                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 563                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 564                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 565                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 566                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 567                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 568                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 569                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 570                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 571                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 572                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 573                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 574                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 575                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 576                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 577                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 578                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 579                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 580                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 581                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 582                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 583                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 584                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 585                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 586                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 587                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 588                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 589                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 590                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 591                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 592                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 593                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 594                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 595                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 596                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 597                 goto end;
 598                 }
 599
 600         if(outfile) out = BIO_new_file(outfile, "w");
 601         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 602
 603         if(!out)
 604                 {
 605                 BIO_printf(bio_err, "Error opening output file\n");
 606                 goto end;
 607                 }
 608
 609         if (!req && (add_nonce != 2)) add_nonce = 0;
 610
 611         if (!req && reqin)
 612                 {
 613                 derbio = BIO_new_file(reqin, "rb");
 614                 if (!derbio)
 615                         {
 616                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 617                         goto end;
 618                         }
 619                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 620                 BIO_free(derbio);
 621                 if(!req)
 622                         {
 623                         BIO_printf(bio_err, "Error reading OCSP request\n");
 624                         goto end;
 625                         }
 626                 }
 627
 628         if (!req && port)
 629                 {
 630                 acbio = init_responder(port);
 631                 if (!acbio)
 632                         goto end;
 633                 }
 634
 635         if (rsignfile && !rdb)
 636                 {
 637                 if (!rkeyfile) rkeyfile = rsignfile;
 638                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 639                         NULL, e, "responder certificate");
 640                 if (!rsigner)
 641                         {
 642                         BIO_printf(bio_err, "Error loading responder certificate\n");
 643                         goto end;
 644                         }
 645                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 646                         NULL, e, "CA certificate");
 647                 if (rcertfile)
 648                         {
 649                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 650                                 NULL, e, "responder other certificates");
 651                         if (!rother) goto end;
 652                         }
 653                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 654                         "responder private key");
 655                 if (!rkey)
 656                         goto end;
 657                 }
 658         if(acbio)
 659                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 660
 661         redo_accept:
 662
 663         if (acbio)
 664                 {
 665                 if (!do_responder(&req, &cbio, acbio, port))
 666                         goto end;
 667                 if (!req)
 668                         {
 669                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 670                         send_ocsp_response(cbio, resp);
 671                         goto done_resp;
 672                         }
 673                 }
 674
 675         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 676                 {
 677                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 678                 goto end;
 679                 }
 680
 681         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 682
 683         if (signfile)
 684                 {
 685                 if (!keyfile) keyfile = signfile;
 686                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 687                         NULL, e, "signer certificate");
 688                 if (!signer)
 689                         {
 690                         BIO_printf(bio_err, "Error loading signer certificate\n");
 691                         goto end;
 692                         }
 693                 if (sign_certfile)
 694                         {
 695                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 696                                 NULL, e, "signer certificates");
 697                         if (!sign_other) goto end;
 698                         }
 699                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 700                         "signer private key");
 701                 if (!key)
 702                         goto end;
 703
 704                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 705                         {
 706                         BIO_printf(bio_err, "Error signing OCSP request\n");
 707                         goto end;
 708                         }
 709                 }
 710
 711         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 712
 713         if (reqout)
 714                 {
 715                 derbio = BIO_new_file(reqout, "wb");
 716                 if(!derbio)
 717                         {
 718                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 719                         goto end;
 720                         }
 721                 i2d_OCSP_REQUEST_bio(derbio, req);
 722                 BIO_free(derbio);
 723                 }
 724
 725         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 726                 {
 727                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 728                 goto end;
 729                 }
 730
 731         if (ridx_filename && !rdb)
 732                 {
 733                 rdb = load_index(ridx_filename, NULL);
 734                 if (!rdb) goto end;
 735                 if (!index_index(rdb)) goto end;
 736                 }
 737
 738         if (rdb)
 739                 {
 740                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 741                 if (cbio)
 742                         send_ocsp_response(cbio, resp);
 743                 }
 744         else if (host)
 745                 {
 746 #ifndef OPENSSL_NO_SOCK
 747                 resp = process_responder(bio_err, req, host, path,
 748                                                 port, use_ssl, req_timeout);
 749                 if (!resp)
 750                         goto end;
 751 #else
 752                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 753                 goto end;
 754 #endif
 755                 }
 756         else if (respin)
 757                 {
 758                 derbio = BIO_new_file(respin, "rb");
 759                 if (!derbio)
 760                         {
 761                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 762                         goto end;
 763                         }
 764                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 765                 BIO_free(derbio);
 766                 if(!resp)
 767                         {
 768                         BIO_printf(bio_err, "Error reading OCSP response\n");
 769                         goto end;
 770                         }
 771
 772                 }
 773         else
 774                 {
 775                 ret = 0;
 776                 goto end;
 777                 }
 778
 779         done_resp:
 780
 781         if (respout)
 782                 {
 783                 derbio = BIO_new_file(respout, "wb");
 784                 if(!derbio)
 785                         {
 786                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 787                         goto end;
 788                         }
 789                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 790                 BIO_free(derbio);
 791                 }
 792
 793         i = OCSP_response_status(resp);
 794
 795         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 796                 {
 797                 BIO_printf(out, "Responder Error: %s (%d)\n",
 798                                 OCSP_response_status_str(i), i);
 799                 if (ignore_err)
 800                         goto redo_accept;
 801                 ret = 0;
 802                 goto end;
 803                 }
 804
 805         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 806
 807         /* If running as responder don't verify our own response */
 808         if (cbio)
 809                 {
 810                 if (accept_count > 0)
 811                         accept_count--;
 812                 /* Redo if more connections needed */
 813                 if (accept_count)
 814                         {
 815                         BIO_free_all(cbio);
 816                         cbio = NULL;
 817                         OCSP_REQUEST_free(req);
 818                         req = NULL;
 819                         OCSP_RESPONSE_free(resp);
 820                         resp = NULL;
 821                         goto redo_accept;
 822                         }
 823                 goto end;
 824                 }
 825
 826         if (!store)
 827                 store = setup_verify(bio_err, CAfile, CApath);
 828         if (!store)
 829                 goto end;
 830         if (verify_certfile)
 831                 {
 832                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 833                         NULL, e, "validator certificate");
 834                 if (!verify_other) goto end;
 835                 }
 836
 837         bs = OCSP_response_get1_basic(resp);
 838
 839         if (!bs)
 840                 {
 841                 BIO_printf(bio_err, "Error parsing response\n");
 842                 goto end;
 843                 }
 844
 845         if (!noverify)
 846                 {
 847                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 848                         {
 849                         if (i == -1)
 850                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 851                         else
 852                                 {
 853                                 BIO_printf(bio_err, "Nonce Verify error\n");
 854                                 goto end;
 855                                 }
 856                         }
 857
 858                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 859                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 860
 861                 if(i <= 0)
 862                         {
 863                         BIO_printf(bio_err, "Response Verify Failure\n");
 864                         ERR_print_errors(bio_err);
 865                         }
 866                 else
 867                         BIO_printf(bio_err, "Response verify OK\n");
 868
 869                 }
 870
 871         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 872                 goto end;
 873
 874         ret = 0;
 875
 876 end:
 877         ERR_print_errors(bio_err);
 878         X509_free(signer);
 879         X509_STORE_free(store);
 880         EVP_PKEY_free(key);
 881         EVP_PKEY_free(rkey);
 882         X509_free(issuer);
 883         X509_free(cert);
 884         X509_free(rsigner);
 885         X509_free(rca_cert);
 886         free_index(rdb);
 887         BIO_free_all(cbio);
 888         BIO_free_all(acbio);
 889         BIO_free(out);
 890         OCSP_REQUEST_free(req);
 891         OCSP_RESPONSE_free(resp);
 892         OCSP_BASICRESP_free(bs);
 893         sk_free(reqnames);
 894         sk_OCSP_CERTID_free(ids);
 895         sk_X509_pop_free(sign_other, X509_free);
 896         sk_X509_pop_free(verify_other, X509_free);
 897
 898         if (use_ssl != -1)
 899                 {
 900                 OPENSSL_free(host);
 901                 OPENSSL_free(port);
 902                 OPENSSL_free(path);
 903                 }
 904
 905         OPENSSL_EXIT(ret);
 906 }
 907
 908 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 909                                 STACK_OF(OCSP_CERTID) *ids)
 910         {
 911         OCSP_CERTID *id;
 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         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 920         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 921         if(!OCSP_request_add0_id(*req, id)) goto err;
 922         return 1;
 923
 924         err:
 925         BIO_printf(bio_err, "Error Creating OCSP request\n");
 926         return 0;
 927         }
 928
 929 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 930                                 STACK_OF(OCSP_CERTID) *ids)
 931         {
 932         OCSP_CERTID *id;
 933         X509_NAME *iname;
 934         ASN1_BIT_STRING *ikey;
 935         ASN1_INTEGER *sno;
 936         if(!issuer)
 937                 {
 938                 BIO_printf(bio_err, "No issuer certificate specified\n");
 939                 return 0;
 940                 }
 941         if(!*req) *req = OCSP_REQUEST_new();
 942         if(!*req) goto err;
 943         iname = X509_get_subject_name(issuer);
 944         ikey = X509_get0_pubkey_bitstr(issuer);
 945         sno = s2i_ASN1_INTEGER(NULL, serial);
 946         if(!sno)
 947                 {
 948                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 949                 return 0;
 950                 }
 951         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 952         ASN1_INTEGER_free(sno);
 953         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 954         if(!OCSP_request_add0_id(*req, id)) goto err;
 955         return 1;
 956
 957         err:
 958         BIO_printf(bio_err, "Error Creating OCSP request\n");
 959         return 0;
 960         }
 961
 962 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 963                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 964                                         long nsec, long maxage)
 965         {
 966         OCSP_CERTID *id;
 967         char *name;
 968         int i;
 969
 970         int status, reason;
 971
 972         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 973
 974         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 975                 return 1;
 976
 977         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 978                 {
 979                 id = sk_OCSP_CERTID_value(ids, i);
 980                 name = sk_value(names, i);
 981                 BIO_printf(out, "%s: ", name);
 982
 983                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 984                                         &rev, &thisupd, &nextupd))
 985                         {
 986                         BIO_puts(out, "ERROR: No Status found.\n");
 987                         continue;
 988                         }
 989
 990                 /* Check validity: if invalid write to output BIO so we
 991                  * know which response this refers to.
 992                  */
 993                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 994                         {
 995                         BIO_puts(out, "WARNING: Status times invalid.\n");
 996                         ERR_print_errors(out);
 997                         }
 998                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 999
1000                 BIO_puts(out, "\tThis Update: ");
1001                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1002                 BIO_puts(out, "\n");
1003
1004                 if(nextupd)
1005                         {
1006                         BIO_puts(out, "\tNext Update: ");
1007                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1008                         BIO_puts(out, "\n");
1009                         }
1010
1011                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1012                         continue;
1013
1014                 if (reason != -1)
1015                         BIO_printf(out, "\tReason: %s\n",
1016                                 OCSP_crl_reason_str(reason));
1017
1018                 BIO_puts(out, "\tRevocation Time: ");
1019                 ASN1_GENERALIZEDTIME_print(out, rev);
1020                 BIO_puts(out, "\n");
1021                 }
1022
1023         return 1;
1024         }
1025
1026
1027 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1028                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1029                         STACK_OF(X509) *rother, unsigned long flags,
1030                         int nmin, int ndays)
1031         {
1032         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1033         OCSP_CERTID *cid, *ca_id = NULL;
1034         OCSP_BASICRESP *bs = NULL;
1035         int i, id_count, ret = 1;
1036
1037         id_count = OCSP_request_onereq_count(req);
1038
1039         if (id_count <= 0)
1040                 {
1041                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1042                 goto end;
1043                 }
1044
1045
1046         bs = OCSP_BASICRESP_new();
1047         thisupd = X509_gmtime_adj(NULL, 0);
1048         if (ndays != -1)
1049                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1050
1051         /* Examine each certificate id in the request */
1052         for (i = 0; i < id_count; i++)
1053                 {
1054                 OCSP_ONEREQ *one;
1055                 ASN1_INTEGER *serial;
1056                 char **inf;
1057                 ASN1_OBJECT *cert_id_md_oid;
1058                 const EVP_MD *cert_id_md;
1059                 one = OCSP_request_onereq_get0(req, i);
1060                 cid = OCSP_onereq_get0_id(one);
1061
1062                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1063
1064                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1065                 if (! cert_id_md)
1066                         {
1067                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1068                                 NULL);
1069                                 goto end;
1070                         }
1071                 if (ca_id) OCSP_CERTID_free(ca_id);
1072                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1073
1074                 /* Is this request about our CA? */
1075                 if (OCSP_id_issuer_cmp(ca_id, cid))
1076                         {
1077                         OCSP_basic_add1_status(bs, cid,
1078                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1079                                                 0, NULL,
1080                                                 thisupd, nextupd);
1081                         continue;
1082                         }
1083                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1084                 inf = lookup_serial(db, serial);
1085                 if (!inf)
1086                         OCSP_basic_add1_status(bs, cid,
1087                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1088                                                 0, NULL,
1089                                                 thisupd, nextupd);
1090                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1091                         OCSP_basic_add1_status(bs, cid,
1092                                                 V_OCSP_CERTSTATUS_GOOD,
1093                                                 0, NULL,
1094                                                 thisupd, nextupd);
1095                 else if (inf[DB_type][0] == DB_TYPE_REV)
1096                         {
1097                         ASN1_OBJECT *inst = NULL;
1098                         ASN1_TIME *revtm = NULL;
1099                         ASN1_GENERALIZEDTIME *invtm = NULL;
1100                         OCSP_SINGLERESP *single;
1101                         int reason = -1;
1102                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1103                         single = OCSP_basic_add1_status(bs, cid,
1104                                                 V_OCSP_CERTSTATUS_REVOKED,
1105                                                 reason, revtm,
1106                                                 thisupd, nextupd);
1107                         if (invtm)
1108                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1109                         else if (inst)
1110                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1111                         ASN1_OBJECT_free(inst);
1112                         ASN1_TIME_free(revtm);
1113                         ASN1_GENERALIZEDTIME_free(invtm);
1114                         }
1115                 }
1116
1117         OCSP_copy_nonce(bs, req);
1118
1119         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1120
1121         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1122
1123         end:
1124         ASN1_TIME_free(thisupd);
1125         ASN1_TIME_free(nextupd);
1126         OCSP_CERTID_free(ca_id);
1127         OCSP_BASICRESP_free(bs);
1128         return ret;
1129
1130         }
1131
1132 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1133         {
1134         int i;
1135         BIGNUM *bn = NULL;
1136         char *itmp, *row[DB_NUMBER],**rrow;
1137         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1138         bn = ASN1_INTEGER_to_BN(ser,NULL);
1139         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1140         if (BN_is_zero(bn))
1141                 itmp = BUF_strdup("00");
1142         else
1143                 itmp = BN_bn2hex(bn);
1144         row[DB_serial] = itmp;
1145         BN_free(bn);
1146         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1147         OPENSSL_free(itmp);
1148         return rrow;
1149         }
1150
1151 /* Quick and dirty OCSP server: read in and parse input request */
1152
1153 static BIO *init_responder(char *port)
1154         {
1155         BIO *acbio = NULL, *bufbio = NULL;
1156         bufbio = BIO_new(BIO_f_buffer());
1157         if (!bufbio)
1158                 goto err;
1159 #ifndef OPENSSL_NO_SOCK
1160         acbio = BIO_new_accept(port);
1161 #else
1162         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1163 #endif
1164         if (!acbio)
1165                 goto err;
1166         BIO_set_accept_bios(acbio, bufbio);
1167         bufbio = NULL;
1168
1169         if (BIO_do_accept(acbio) <= 0)
1170                 {
1171                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1172                         ERR_print_errors(bio_err);
1173                         goto err;
1174                 }
1175
1176         return acbio;
1177
1178         err:
1179         BIO_free_all(acbio);
1180         BIO_free(bufbio);
1181         return NULL;
1182         }
1183
1184 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1185         {
1186         int have_post = 0, len;
1187         OCSP_REQUEST *req = NULL;
1188         char inbuf[1024];
1189         BIO *cbio = NULL;
1190
1191         if (BIO_do_accept(acbio) <= 0)
1192                 {
1193                         BIO_printf(bio_err, "Error accepting connection\n");
1194                         ERR_print_errors(bio_err);
1195                         return 0;
1196                 }
1197
1198         cbio = BIO_pop(acbio);
1199         *pcbio = cbio;
1200
1201         for(;;)
1202                 {
1203                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1204                 if (len <= 0)
1205                         return 1;
1206                 /* Look for "POST" signalling start of query */
1207                 if (!have_post)
1208                         {
1209                         if(strncmp(inbuf, "POST", 4))
1210                                 {
1211                                 BIO_printf(bio_err, "Invalid request\n");
1212                                 return 1;
1213                                 }
1214                         have_post = 1;
1215                         }
1216                 /* Look for end of headers */
1217                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1218                         break;
1219                 }
1220
1221         /* Try to read OCSP request */
1222
1223         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1224
1225         if (!req)
1226                 {
1227                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1228                 ERR_print_errors(bio_err);
1229                 }
1230
1231         *preq = req;
1232
1233         return 1;
1234
1235         }
1236
1237 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1238         {
1239         char http_resp[] =
1240                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1241                 "Content-Length: %d\r\n\r\n";
1242         if (!cbio)
1243                 return 0;
1244         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1245         i2d_OCSP_RESPONSE_bio(cbio, resp);
1246         (void)BIO_flush(cbio);
1247         return 1;
1248         }
1249
1250 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1251                                 OCSP_REQUEST *req, int req_timeout)
1252         {
1253         int fd;
1254         int rv;
1255         OCSP_REQ_CTX *ctx = NULL;
1256         OCSP_RESPONSE *rsp = NULL;
1257         fd_set confds;
1258         struct timeval tv;
1259
1260         if (req_timeout != -1)
1261                 BIO_set_nbio(cbio, 1);
1262
1263         rv = BIO_do_connect(cbio);
1264
1265         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1266                 {
1267                 BIO_puts(err, "Error connecting BIO\n");
1268                 return NULL;
1269                 }
1270
1271         if (req_timeout == -1)
1272                 return OCSP_sendreq_bio(cbio, path, req);
1273
1274         if (BIO_get_fd(cbio, &fd) <= 0)
1275                 {
1276                 BIO_puts(err, "Can't get connection fd\n");
1277                 goto err;
1278                 }
1279
1280         if (rv <= 0)
1281                 {
1282                 FD_ZERO(&confds);
1283                 openssl_fdset(fd, &confds);
1284                 tv.tv_usec = 0;
1285                 tv.tv_sec = req_timeout;
1286                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1287                 if (rv == 0)
1288                         {
1289                         BIO_puts(err, "Timeout on connect\n");
1290                         return NULL;
1291                         }
1292                 }
1293
1294
1295         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1296         if (!ctx)
1297                 return NULL;
1298
1299         for (;;)
1300                 {
1301                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1302                 if (rv != -1)
1303                         break;
1304                 FD_ZERO(&confds);
1305                 openssl_fdset(fd, &confds);
1306                 tv.tv_usec = 0;
1307                 tv.tv_sec = req_timeout;
1308                 if (BIO_should_read(cbio))
1309                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1310                 else if (BIO_should_write(cbio))
1311                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1312                 else
1313                         {
1314                         BIO_puts(err, "Unexpected retry condition\n");
1315                         goto err;
1316                         }
1317                 if (rv == 0)
1318                         {
1319                         BIO_puts(err, "Timeout on request\n");
1320                         break;
1321                         }
1322                 if (rv == -1)
1323                         {
1324                         BIO_puts(err, "Select error\n");
1325                         break;
1326                         }
1327
1328                 }
1329         err:
1330         if (ctx)
1331                 OCSP_REQ_CTX_free(ctx);
1332
1333         return rsp;
1334         }
1335
1336 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1337                         char *host, char *path, char *port, int use_ssl,
1338                         int req_timeout)
1339         {
1340         BIO *cbio = NULL;
1341         SSL_CTX *ctx = NULL;
1342         OCSP_RESPONSE *resp = NULL;
1343         cbio = BIO_new_connect(host);
1344         if (!cbio)
1345                 {
1346                 BIO_printf(err, "Error creating connect BIO\n");
1347                 goto end;
1348                 }
1349         if (port) BIO_set_conn_port(cbio, port);
1350         if (use_ssl == 1)
1351                 {
1352                 BIO *sbio;
1353 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1354                 ctx = SSL_CTX_new(SSLv23_client_method());
1355 #elif !defined(OPENSSL_NO_SSL3)
1356                 ctx = SSL_CTX_new(SSLv3_client_method());
1357 #elif !defined(OPENSSL_NO_SSL2)
1358                 ctx = SSL_CTX_new(SSLv2_client_method());
1359 #else
1360                 BIO_printf(err, "SSL is disabled\n");
1361                         goto end;
1362 #endif
1363                 if (ctx == NULL)
1364                         {
1365                         BIO_printf(err, "Error creating SSL context.\n");
1366                         goto end;
1367                         }
1368                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1369                 sbio = BIO_new_ssl(ctx, 1);
1370                 cbio = BIO_push(sbio, cbio);
1371                 }
1372         resp = query_responder(err, cbio, path, req, req_timeout);
1373         if (!resp)
1374                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1375         end:
1376         if (ctx)
1377                 SSL_CTX_free(ctx);
1378         if (cbio)
1379                 BIO_free_all(cbio);
1380         return resp;
1381         }
1382
1383 #endif