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 "apps.h" /* needs to be included before the openssl headers! */
  64 #include <openssl/e_os2.h>
  65 #include <openssl/ssl.h>
  66 #include <openssl/evp.h>
  67
  68 #if defined(NETWARE_CLIB)
  69 #  ifdef NETWARE_BSDSOCK
  70 #    include <sys/socket.h>
  71 #    include <sys/bsdskt.h>
  72 #  else
  73 #    include <novsock2.h>
  74 #  endif
  75 #elif defined(NETWARE_LIBC)
  76 #  ifdef NETWARE_BSDSOCK
  77 #    include <sys/select.h>
  78 #  else
  79 #    include <novsock2.h>
  80 #  endif
  81 #endif
  82
  83 /* Maximum leeway in validity period: default 5 minutes */
  84 #define MAX_VALIDITY_PERIOD     (5 * 60)
  85
  86 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  87                                 STACK_OF(OCSP_CERTID) *ids);
  88 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
  89                                 STACK_OF(OCSP_CERTID) *ids);
  90 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  91                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  92                                 long nsec, long maxage);
  93
  94 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  95                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  96                         STACK_OF(X509) *rother, unsigned long flags,
  97                         int nmin, int ndays);
  98
  99 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 100 static BIO *init_responder(char *port);
 101 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 102 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 103 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 104                                 OCSP_REQUEST *req, int req_timeout);
 105
 106 #undef PROG
 107 #define PROG ocsp_main
 108
 109 int MAIN(int, char **);
 110
 111 int MAIN(int argc, char **argv)
 112         {
 113         ENGINE *e = NULL;
 114         char **args;
 115         char *host = NULL, *port = NULL, *path = "/";
 116         char *reqin = NULL, *respin = NULL;
 117         char *reqout = NULL, *respout = NULL;
 118         char *signfile = NULL, *keyfile = NULL;
 119         char *rsignfile = NULL, *rkeyfile = NULL;
 120         char *outfile = NULL;
 121         int add_nonce = 1, noverify = 0, use_ssl = -1;
 122         OCSP_REQUEST *req = NULL;
 123         OCSP_RESPONSE *resp = NULL;
 124         OCSP_BASICRESP *bs = NULL;
 125         X509 *issuer = NULL, *cert = NULL;
 126         X509 *signer = NULL, *rsigner = NULL;
 127         EVP_PKEY *key = NULL, *rkey = NULL;
 128         BIO *acbio = NULL, *cbio = NULL;
 129         BIO *derbio = NULL;
 130         BIO *out = NULL;
 131         int req_timeout = -1;
 132         int req_text = 0, resp_text = 0;
 133         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 134         char *CAfile = NULL, *CApath = NULL;
 135         X509_STORE *store = NULL;
 136         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 137         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 138         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 139         int ret = 1;
 140         int accept_count = -1;
 141         int badarg = 0;
 142         int i;
 143         int ignore_err = 0;
 144         STACK *reqnames = NULL;
 145         STACK_OF(OCSP_CERTID) *ids = NULL;
 146
 147         X509 *rca_cert = NULL;
 148         char *ridx_filename = NULL;
 149         char *rca_filename = NULL;
 150         CA_DB *rdb = NULL;
 151         int nmin = 0, ndays = -1;
 152         const EVP_MD *cert_id_md = NULL;
 153
 154         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 155
 156         if (!load_config(bio_err, NULL))
 157                 goto end;
 158         SSL_load_error_strings();
 159         OpenSSL_add_ssl_algorithms();
 160         args = argv + 1;
 161         reqnames = sk_new_null();
 162         ids = sk_OCSP_CERTID_new_null();
 163         while (!badarg && *args && *args[0] == '-')
 164                 {
 165                 if (!strcmp(*args, "-out"))
 166                         {
 167                         if (args[1])
 168                                 {
 169                                 args++;
 170                                 outfile = *args;
 171                                 }
 172                         else badarg = 1;
 173                         }
 174                 else if (!strcmp(*args, "-timeout"))
 175                         {
 176                         if (args[1])
 177                                 {
 178                                 args++;
 179                                 req_timeout = atol(*args);
 180                                 if (req_timeout < 0)
 181                                         {
 182                                         BIO_printf(bio_err,
 183                                                 "Illegal timeout value %s\n",
 184                                                 *args);
 185                                         badarg = 1;
 186                                         }
 187                                 }
 188                         else badarg = 1;
 189                         }
 190                 else if (!strcmp(*args, "-url"))
 191                         {
 192                         if (args[1])
 193                                 {
 194                                 args++;
 195                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 196                                         {
 197                                         BIO_printf(bio_err, "Error parsing URL\n");
 198                                         badarg = 1;
 199                                         }
 200                                 }
 201                         else badarg = 1;
 202                         }
 203                 else if (!strcmp(*args, "-host"))
 204                         {
 205                         if (args[1])
 206                                 {
 207                                 args++;
 208                                 host = *args;
 209                                 }
 210                         else badarg = 1;
 211                         }
 212                 else if (!strcmp(*args, "-port"))
 213                         {
 214                         if (args[1])
 215                                 {
 216                                 args++;
 217                                 port = *args;
 218                                 }
 219                         else badarg = 1;
 220                         }
 221                 else if (!strcmp(*args, "-ignore_err"))
 222                         ignore_err = 1;
 223                 else if (!strcmp(*args, "-noverify"))
 224                         noverify = 1;
 225                 else if (!strcmp(*args, "-nonce"))
 226                         add_nonce = 2;
 227                 else if (!strcmp(*args, "-no_nonce"))
 228                         add_nonce = 0;
 229                 else if (!strcmp(*args, "-resp_no_certs"))
 230                         rflags |= OCSP_NOCERTS;
 231                 else if (!strcmp(*args, "-resp_key_id"))
 232                         rflags |= OCSP_RESPID_KEY;
 233                 else if (!strcmp(*args, "-no_certs"))
 234                         sign_flags |= OCSP_NOCERTS;
 235                 else if (!strcmp(*args, "-no_signature_verify"))
 236                         verify_flags |= OCSP_NOSIGS;
 237                 else if (!strcmp(*args, "-no_cert_verify"))
 238                         verify_flags |= OCSP_NOVERIFY;
 239                 else if (!strcmp(*args, "-no_chain"))
 240                         verify_flags |= OCSP_NOCHAIN;
 241                 else if (!strcmp(*args, "-no_cert_checks"))
 242                         verify_flags |= OCSP_NOCHECKS;
 243                 else if (!strcmp(*args, "-no_explicit"))
 244                         verify_flags |= OCSP_NOEXPLICIT;
 245                 else if (!strcmp(*args, "-trust_other"))
 246                         verify_flags |= OCSP_TRUSTOTHER;
 247                 else if (!strcmp(*args, "-no_intern"))
 248                         verify_flags |= OCSP_NOINTERN;
 249                 else if (!strcmp(*args, "-text"))
 250                         {
 251                         req_text = 1;
 252                         resp_text = 1;
 253                         }
 254                 else if (!strcmp(*args, "-req_text"))
 255                         req_text = 1;
 256                 else if (!strcmp(*args, "-resp_text"))
 257                         resp_text = 1;
 258                 else if (!strcmp(*args, "-reqin"))
 259                         {
 260                         if (args[1])
 261                                 {
 262                                 args++;
 263                                 reqin = *args;
 264                                 }
 265                         else badarg = 1;
 266                         }
 267                 else if (!strcmp(*args, "-respin"))
 268                         {
 269                         if (args[1])
 270                                 {
 271                                 args++;
 272                                 respin = *args;
 273                                 }
 274                         else badarg = 1;
 275                         }
 276                 else if (!strcmp(*args, "-signer"))
 277                         {
 278                         if (args[1])
 279                                 {
 280                                 args++;
 281                                 signfile = *args;
 282                                 }
 283                         else badarg = 1;
 284                         }
 285                 else if (!strcmp (*args, "-VAfile"))
 286                         {
 287                         if (args[1])
 288                                 {
 289                                 args++;
 290                                 verify_certfile = *args;
 291                                 verify_flags |= OCSP_TRUSTOTHER;
 292                                 }
 293                         else badarg = 1;
 294                         }
 295                 else if (!strcmp(*args, "-sign_other"))
 296                         {
 297                         if (args[1])
 298                                 {
 299                                 args++;
 300                                 sign_certfile = *args;
 301                                 }
 302                         else badarg = 1;
 303                         }
 304                 else if (!strcmp(*args, "-verify_other"))
 305                         {
 306                         if (args[1])
 307                                 {
 308                                 args++;
 309                                 verify_certfile = *args;
 310                                 }
 311                         else badarg = 1;
 312                         }
 313                 else if (!strcmp (*args, "-CAfile"))
 314                         {
 315                         if (args[1])
 316                                 {
 317                                 args++;
 318                                 CAfile = *args;
 319                                 }
 320                         else badarg = 1;
 321                         }
 322                 else if (!strcmp (*args, "-CApath"))
 323                         {
 324                         if (args[1])
 325                                 {
 326                                 args++;
 327                                 CApath = *args;
 328                                 }
 329                         else badarg = 1;
 330                         }
 331                 else if (!strcmp (*args, "-validity_period"))
 332                         {
 333                         if (args[1])
 334                                 {
 335                                 args++;
 336                                 nsec = atol(*args);
 337                                 if (nsec < 0)
 338                                         {
 339                                         BIO_printf(bio_err,
 340                                                 "Illegal validity period %s\n",
 341                                                 *args);
 342                                         badarg = 1;
 343                                         }
 344                                 }
 345                         else badarg = 1;
 346                         }
 347                 else if (!strcmp (*args, "-status_age"))
 348                         {
 349                         if (args[1])
 350                                 {
 351                                 args++;
 352                                 maxage = atol(*args);
 353                                 if (maxage < 0)
 354                                         {
 355                                         BIO_printf(bio_err,
 356                                                 "Illegal validity age %s\n",
 357                                                 *args);
 358                                         badarg = 1;
 359                                         }
 360                                 }
 361                         else badarg = 1;
 362                         }
 363                  else if (!strcmp(*args, "-signkey"))
 364                         {
 365                         if (args[1])
 366                                 {
 367                                 args++;
 368                                 keyfile = *args;
 369                                 }
 370                         else badarg = 1;
 371                         }
 372                 else if (!strcmp(*args, "-reqout"))
 373                         {
 374                         if (args[1])
 375                                 {
 376                                 args++;
 377                                 reqout = *args;
 378                                 }
 379                         else badarg = 1;
 380                         }
 381                 else if (!strcmp(*args, "-respout"))
 382                         {
 383                         if (args[1])
 384                                 {
 385                                 args++;
 386                                 respout = *args;
 387                                 }
 388                         else badarg = 1;
 389                         }
 390                  else if (!strcmp(*args, "-path"))
 391                         {
 392                         if (args[1])
 393                                 {
 394                                 args++;
 395                                 path = *args;
 396                                 }
 397                         else badarg = 1;
 398                         }
 399                 else if (!strcmp(*args, "-issuer"))
 400                         {
 401                         if (args[1])
 402                                 {
 403                                 args++;
 404                                 X509_free(issuer);
 405                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 406                                         NULL, e, "issuer certificate");
 407                                 if(!issuer) goto end;
 408                                 }
 409                         else badarg = 1;
 410                         }
 411                 else if (!strcmp (*args, "-cert"))
 412                         {
 413                         if (args[1])
 414                                 {
 415                                 args++;
 416                                 X509_free(cert);
 417                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 418                                         NULL, e, "certificate");
 419                                 if(!cert) goto end;
 420                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 421                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 422                                         goto end;
 423                                 if(!sk_push(reqnames, *args))
 424                                         goto end;
 425                                 }
 426                         else badarg = 1;
 427                         }
 428                 else if (!strcmp(*args, "-serial"))
 429                         {
 430                         if (args[1])
 431                                 {
 432                                 args++;
 433                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 434                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 435                                         goto end;
 436                                 if(!sk_push(reqnames, *args))
 437                                         goto end;
 438                                 }
 439                         else badarg = 1;
 440                         }
 441                 else if (!strcmp(*args, "-index"))
 442                         {
 443                         if (args[1])
 444                                 {
 445                                 args++;
 446                                 ridx_filename = *args;
 447                                 }
 448                         else badarg = 1;
 449                         }
 450                 else if (!strcmp(*args, "-CA"))
 451                         {
 452                         if (args[1])
 453                                 {
 454                                 args++;
 455                                 rca_filename = *args;
 456                                 }
 457                         else badarg = 1;
 458                         }
 459                 else if (!strcmp (*args, "-nmin"))
 460                         {
 461                         if (args[1])
 462                                 {
 463                                 args++;
 464                                 nmin = atol(*args);
 465                                 if (nmin < 0)
 466                                         {
 467                                         BIO_printf(bio_err,
 468                                                 "Illegal update period %s\n",
 469                                                 *args);
 470                                         badarg = 1;
 471                                         }
 472                                 }
 473                                 if (ndays == -1)
 474                                         ndays = 0;
 475                         else badarg = 1;
 476                         }
 477                 else if (!strcmp (*args, "-nrequest"))
 478                         {
 479                         if (args[1])
 480                                 {
 481                                 args++;
 482                                 accept_count = atol(*args);
 483                                 if (accept_count < 0)
 484                                         {
 485                                         BIO_printf(bio_err,
 486                                                 "Illegal accept count %s\n",
 487                                                 *args);
 488                                         badarg = 1;
 489                                         }
 490                                 }
 491                         else badarg = 1;
 492                         }
 493                 else if (!strcmp (*args, "-ndays"))
 494                         {
 495                         if (args[1])
 496                                 {
 497                                 args++;
 498                                 ndays = atol(*args);
 499                                 if (ndays < 0)
 500                                         {
 501                                         BIO_printf(bio_err,
 502                                                 "Illegal update period %s\n",
 503                                                 *args);
 504                                         badarg = 1;
 505                                         }
 506                                 }
 507                         else badarg = 1;
 508                         }
 509                 else if (!strcmp(*args, "-rsigner"))
 510                         {
 511                         if (args[1])
 512                                 {
 513                                 args++;
 514                                 rsignfile = *args;
 515                                 }
 516                         else badarg = 1;
 517                         }
 518                 else if (!strcmp(*args, "-rkey"))
 519                         {
 520                         if (args[1])
 521                                 {
 522                                 args++;
 523                                 rkeyfile = *args;
 524                                 }
 525                         else badarg = 1;
 526                         }
 527                 else if (!strcmp(*args, "-rother"))
 528                         {
 529                         if (args[1])
 530                                 {
 531                                 args++;
 532                                 rcertfile = *args;
 533                                 }
 534                         else badarg = 1;
 535                         }
 536                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 537                         {
 538                         badarg = 1;
 539                         }
 540                 args++;
 541                 }
 542
 543         /* Have we anything to do? */
 544         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 545
 546         if (badarg)
 547                 {
 548                 BIO_printf (bio_err, "OCSP utility\n");
 549                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 550                 BIO_printf (bio_err, "where options are\n");
 551                 BIO_printf (bio_err, "-out file          output filename\n");
 552                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 553                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 554                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 555                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 556                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 557                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 558                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 559                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 560                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 561                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 562                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 563                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 564                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 565                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 566                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 567                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 568                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 569                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 570                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 571                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 572                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 573                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 574                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 575                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 576                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 577                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 578                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 579                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 580                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 581                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 582                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 583                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 584                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 585                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 586                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 587                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 588                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 589                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 590                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 591                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 592                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 593                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 594                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 595                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 596                 goto end;
 597                 }
 598
 599         if(outfile) out = BIO_new_file(outfile, "w");
 600         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 601
 602         if(!out)
 603                 {
 604                 BIO_printf(bio_err, "Error opening output file\n");
 605                 goto end;
 606                 }
 607
 608         if (!req && (add_nonce != 2)) add_nonce = 0;
 609
 610         if (!req && reqin)
 611                 {
 612                 derbio = BIO_new_file(reqin, "rb");
 613                 if (!derbio)
 614                         {
 615                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 616                         goto end;
 617                         }
 618                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 619                 BIO_free(derbio);
 620                 if(!req)
 621                         {
 622                         BIO_printf(bio_err, "Error reading OCSP request\n");
 623                         goto end;
 624                         }
 625                 }
 626
 627         if (!req && port)
 628                 {
 629                 acbio = init_responder(port);
 630                 if (!acbio)
 631                         goto end;
 632                 }
 633
 634         if (rsignfile && !rdb)
 635                 {
 636                 if (!rkeyfile) rkeyfile = rsignfile;
 637                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 638                         NULL, e, "responder certificate");
 639                 if (!rsigner)
 640                         {
 641                         BIO_printf(bio_err, "Error loading responder certificate\n");
 642                         goto end;
 643                         }
 644                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 645                         NULL, e, "CA certificate");
 646                 if (rcertfile)
 647                         {
 648                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 649                                 NULL, e, "responder other certificates");
 650                         if (!rother) goto end;
 651                         }
 652                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 653                         "responder private key");
 654                 if (!rkey)
 655                         goto end;
 656                 }
 657         if(acbio)
 658                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 659
 660         redo_accept:
 661
 662         if (acbio)
 663                 {
 664                 if (!do_responder(&req, &cbio, acbio, port))
 665                         goto end;
 666                 if (!req)
 667                         {
 668                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 669                         send_ocsp_response(cbio, resp);
 670                         goto done_resp;
 671                         }
 672                 }
 673
 674         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 675                 {
 676                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 677                 goto end;
 678                 }
 679
 680         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 681
 682         if (signfile)
 683                 {
 684                 if (!keyfile) keyfile = signfile;
 685                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 686                         NULL, e, "signer certificate");
 687                 if (!signer)
 688                         {
 689                         BIO_printf(bio_err, "Error loading signer certificate\n");
 690                         goto end;
 691                         }
 692                 if (sign_certfile)
 693                         {
 694                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 695                                 NULL, e, "signer certificates");
 696                         if (!sign_other) goto end;
 697                         }
 698                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 699                         "signer private key");
 700                 if (!key)
 701                         goto end;
 702
 703                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 704                         {
 705                         BIO_printf(bio_err, "Error signing OCSP request\n");
 706                         goto end;
 707                         }
 708                 }
 709
 710         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 711
 712         if (reqout)
 713                 {
 714                 derbio = BIO_new_file(reqout, "wb");
 715                 if(!derbio)
 716                         {
 717                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 718                         goto end;
 719                         }
 720                 i2d_OCSP_REQUEST_bio(derbio, req);
 721                 BIO_free(derbio);
 722                 }
 723
 724         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 725                 {
 726                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 727                 goto end;
 728                 }
 729
 730         if (ridx_filename && !rdb)
 731                 {
 732                 rdb = load_index(ridx_filename, NULL);
 733                 if (!rdb) goto end;
 734                 if (!index_index(rdb)) goto end;
 735                 }
 736
 737         if (rdb)
 738                 {
 739                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 740                 if (cbio)
 741                         send_ocsp_response(cbio, resp);
 742                 }
 743         else if (host)
 744                 {
 745 #ifndef OPENSSL_NO_SOCK
 746                 resp = process_responder(bio_err, req, host, path,
 747                                                 port, use_ssl, req_timeout);
 748                 if (!resp)
 749                         goto end;
 750 #else
 751                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 752                 goto end;
 753 #endif
 754                 }
 755         else if (respin)
 756                 {
 757                 derbio = BIO_new_file(respin, "rb");
 758                 if (!derbio)
 759                         {
 760                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 761                         goto end;
 762                         }
 763                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 764                 BIO_free(derbio);
 765                 if(!resp)
 766                         {
 767                         BIO_printf(bio_err, "Error reading OCSP response\n");
 768                         goto end;
 769                         }
 770
 771                 }
 772         else
 773                 {
 774                 ret = 0;
 775                 goto end;
 776                 }
 777
 778         done_resp:
 779
 780         if (respout)
 781                 {
 782                 derbio = BIO_new_file(respout, "wb");
 783                 if(!derbio)
 784                         {
 785                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 786                         goto end;
 787                         }
 788                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 789                 BIO_free(derbio);
 790                 }
 791
 792         i = OCSP_response_status(resp);
 793
 794         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 795                 {
 796                 BIO_printf(out, "Responder Error: %s (%d)\n",
 797                                 OCSP_response_status_str(i), i);
 798                 if (ignore_err)
 799                         goto redo_accept;
 800                 ret = 0;
 801                 goto end;
 802                 }
 803
 804         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 805
 806         /* If running as responder don't verify our own response */
 807         if (cbio)
 808                 {
 809                 if (accept_count > 0)
 810                         accept_count--;
 811                 /* Redo if more connections needed */
 812                 if (accept_count)
 813                         {
 814                         BIO_free_all(cbio);
 815                         cbio = NULL;
 816                         OCSP_REQUEST_free(req);
 817                         req = NULL;
 818                         OCSP_RESPONSE_free(resp);
 819                         resp = NULL;
 820                         goto redo_accept;
 821                         }
 822                 goto end;
 823                 }
 824
 825         if (!store)
 826                 store = setup_verify(bio_err, CAfile, CApath);
 827         if (!store)
 828                 goto end;
 829         if (verify_certfile)
 830                 {
 831                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 832                         NULL, e, "validator certificate");
 833                 if (!verify_other) goto end;
 834                 }
 835
 836         bs = OCSP_response_get1_basic(resp);
 837
 838         if (!bs)
 839                 {
 840                 BIO_printf(bio_err, "Error parsing response\n");
 841                 goto end;
 842                 }
 843
 844         if (!noverify)
 845                 {
 846                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 847                         {
 848                         if (i == -1)
 849                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 850                         else
 851                                 {
 852                                 BIO_printf(bio_err, "Nonce Verify error\n");
 853                                 goto end;
 854                                 }
 855                         }
 856
 857                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 858                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 859
 860                 if(i <= 0)
 861                         {
 862                         BIO_printf(bio_err, "Response Verify Failure\n");
 863                         ERR_print_errors(bio_err);
 864                         }
 865                 else
 866                         BIO_printf(bio_err, "Response verify OK\n");
 867
 868                 }
 869
 870         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 871                 goto end;
 872
 873         ret = 0;
 874
 875 end:
 876         ERR_print_errors(bio_err);
 877         X509_free(signer);
 878         X509_STORE_free(store);
 879         EVP_PKEY_free(key);
 880         EVP_PKEY_free(rkey);
 881         X509_free(issuer);
 882         X509_free(cert);
 883         X509_free(rsigner);
 884         X509_free(rca_cert);
 885         free_index(rdb);
 886         BIO_free_all(cbio);
 887         BIO_free_all(acbio);
 888         BIO_free(out);
 889         OCSP_REQUEST_free(req);
 890         OCSP_RESPONSE_free(resp);
 891         OCSP_BASICRESP_free(bs);
 892         sk_free(reqnames);
 893         sk_OCSP_CERTID_free(ids);
 894         sk_X509_pop_free(sign_other, X509_free);
 895         sk_X509_pop_free(verify_other, X509_free);
 896
 897         if (use_ssl != -1)
 898                 {
 899                 OPENSSL_free(host);
 900                 OPENSSL_free(port);
 901                 OPENSSL_free(path);
 902                 }
 903
 904         OPENSSL_EXIT(ret);
 905 }
 906
 907 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 908                                 STACK_OF(OCSP_CERTID) *ids)
 909         {
 910         OCSP_CERTID *id;
 911         if(!issuer)
 912                 {
 913                 BIO_printf(bio_err, "No issuer certificate specified\n");
 914                 return 0;
 915                 }
 916         if(!*req) *req = OCSP_REQUEST_new();
 917         if(!*req) goto err;
 918         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 919         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 920         if(!OCSP_request_add0_id(*req, id)) goto err;
 921         return 1;
 922
 923         err:
 924         BIO_printf(bio_err, "Error Creating OCSP request\n");
 925         return 0;
 926         }
 927
 928 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 929                                 STACK_OF(OCSP_CERTID) *ids)
 930         {
 931         OCSP_CERTID *id;
 932         X509_NAME *iname;
 933         ASN1_BIT_STRING *ikey;
 934         ASN1_INTEGER *sno;
 935         if(!issuer)
 936                 {
 937                 BIO_printf(bio_err, "No issuer certificate specified\n");
 938                 return 0;
 939                 }
 940         if(!*req) *req = OCSP_REQUEST_new();
 941         if(!*req) goto err;
 942         iname = X509_get_subject_name(issuer);
 943         ikey = X509_get0_pubkey_bitstr(issuer);
 944         sno = s2i_ASN1_INTEGER(NULL, serial);
 945         if(!sno)
 946                 {
 947                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 948                 return 0;
 949                 }
 950         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 951         ASN1_INTEGER_free(sno);
 952         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 953         if(!OCSP_request_add0_id(*req, id)) goto err;
 954         return 1;
 955
 956         err:
 957         BIO_printf(bio_err, "Error Creating OCSP request\n");
 958         return 0;
 959         }
 960
 961 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 962                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 963                                         long nsec, long maxage)
 964         {
 965         OCSP_CERTID *id;
 966         char *name;
 967         int i;
 968
 969         int status, reason;
 970
 971         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 972
 973         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 974                 return 1;
 975
 976         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 977                 {
 978                 id = sk_OCSP_CERTID_value(ids, i);
 979                 name = sk_value(names, i);
 980                 BIO_printf(out, "%s: ", name);
 981
 982                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 983                                         &rev, &thisupd, &nextupd))
 984                         {
 985                         BIO_puts(out, "ERROR: No Status found.\n");
 986                         continue;
 987                         }
 988
 989                 /* Check validity: if invalid write to output BIO so we
 990                  * know which response this refers to.
 991                  */
 992                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 993                         {
 994                         BIO_puts(out, "WARNING: Status times invalid.\n");
 995                         ERR_print_errors(out);
 996                         }
 997                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 998
 999                 BIO_puts(out, "\tThis Update: ");
1000                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1001                 BIO_puts(out, "\n");
1002
1003                 if(nextupd)
1004                         {
1005                         BIO_puts(out, "\tNext Update: ");
1006                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1007                         BIO_puts(out, "\n");
1008                         }
1009
1010                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1011                         continue;
1012
1013                 if (reason != -1)
1014                         BIO_printf(out, "\tReason: %s\n",
1015                                 OCSP_crl_reason_str(reason));
1016
1017                 BIO_puts(out, "\tRevocation Time: ");
1018                 ASN1_GENERALIZEDTIME_print(out, rev);
1019                 BIO_puts(out, "\n");
1020                 }
1021
1022         return 1;
1023         }
1024
1025
1026 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1027                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1028                         STACK_OF(X509) *rother, unsigned long flags,
1029                         int nmin, int ndays)
1030         {
1031         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1032         OCSP_CERTID *cid, *ca_id = NULL;
1033         OCSP_BASICRESP *bs = NULL;
1034         int i, id_count, ret = 1;
1035
1036         id_count = OCSP_request_onereq_count(req);
1037
1038         if (id_count <= 0)
1039                 {
1040                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1041                 goto end;
1042                 }
1043
1044
1045         bs = OCSP_BASICRESP_new();
1046         thisupd = X509_gmtime_adj(NULL, 0);
1047         if (ndays != -1)
1048                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1049
1050         /* Examine each certificate id in the request */
1051         for (i = 0; i < id_count; i++)
1052                 {
1053                 OCSP_ONEREQ *one;
1054                 ASN1_INTEGER *serial;
1055                 char **inf;
1056                 ASN1_OBJECT *cert_id_md_oid;
1057                 const EVP_MD *cert_id_md;
1058                 one = OCSP_request_onereq_get0(req, i);
1059                 cid = OCSP_onereq_get0_id(one);
1060
1061                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1062
1063                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1064                 if (! cert_id_md)
1065                         {
1066                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1067                                 NULL);
1068                                 goto end;
1069                         }
1070                 if (ca_id) OCSP_CERTID_free(ca_id);
1071                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1072
1073                 /* Is this request about our CA? */
1074                 if (OCSP_id_issuer_cmp(ca_id, cid))
1075                         {
1076                         OCSP_basic_add1_status(bs, cid,
1077                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1078                                                 0, NULL,
1079                                                 thisupd, nextupd);
1080                         continue;
1081                         }
1082                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1083                 inf = lookup_serial(db, serial);
1084                 if (!inf)
1085                         OCSP_basic_add1_status(bs, cid,
1086                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1087                                                 0, NULL,
1088                                                 thisupd, nextupd);
1089                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1090                         OCSP_basic_add1_status(bs, cid,
1091                                                 V_OCSP_CERTSTATUS_GOOD,
1092                                                 0, NULL,
1093                                                 thisupd, nextupd);
1094                 else if (inf[DB_type][0] == DB_TYPE_REV)
1095                         {
1096                         ASN1_OBJECT *inst = NULL;
1097                         ASN1_TIME *revtm = NULL;
1098                         ASN1_GENERALIZEDTIME *invtm = NULL;
1099                         OCSP_SINGLERESP *single;
1100                         int reason = -1;
1101                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1102                         single = OCSP_basic_add1_status(bs, cid,
1103                                                 V_OCSP_CERTSTATUS_REVOKED,
1104                                                 reason, revtm,
1105                                                 thisupd, nextupd);
1106                         if (invtm)
1107                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1108                         else if (inst)
1109                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1110                         ASN1_OBJECT_free(inst);
1111                         ASN1_TIME_free(revtm);
1112                         ASN1_GENERALIZEDTIME_free(invtm);
1113                         }
1114                 }
1115
1116         OCSP_copy_nonce(bs, req);
1117
1118         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1119
1120         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1121
1122         end:
1123         ASN1_TIME_free(thisupd);
1124         ASN1_TIME_free(nextupd);
1125         OCSP_CERTID_free(ca_id);
1126         OCSP_BASICRESP_free(bs);
1127         return ret;
1128
1129         }
1130
1131 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1132         {
1133         int i;
1134         BIGNUM *bn = NULL;
1135         char *itmp, *row[DB_NUMBER],**rrow;
1136         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1137         bn = ASN1_INTEGER_to_BN(ser,NULL);
1138         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1139         if (BN_is_zero(bn))
1140                 itmp = BUF_strdup("00");
1141         else
1142                 itmp = BN_bn2hex(bn);
1143         row[DB_serial] = itmp;
1144         BN_free(bn);
1145         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1146         OPENSSL_free(itmp);
1147         return rrow;
1148         }
1149
1150 /* Quick and dirty OCSP server: read in and parse input request */
1151
1152 static BIO *init_responder(char *port)
1153         {
1154         BIO *acbio = NULL, *bufbio = NULL;
1155         bufbio = BIO_new(BIO_f_buffer());
1156         if (!bufbio)
1157                 goto err;
1158 #ifndef OPENSSL_NO_SOCK
1159         acbio = BIO_new_accept(port);
1160 #else
1161         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1162 #endif
1163         if (!acbio)
1164                 goto err;
1165         BIO_set_accept_bios(acbio, bufbio);
1166         bufbio = NULL;
1167
1168         if (BIO_do_accept(acbio) <= 0)
1169                 {
1170                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1171                         ERR_print_errors(bio_err);
1172                         goto err;
1173                 }
1174
1175         return acbio;
1176
1177         err:
1178         BIO_free_all(acbio);
1179         BIO_free(bufbio);
1180         return NULL;
1181         }
1182
1183 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1184         {
1185         int have_post = 0, len;
1186         OCSP_REQUEST *req = NULL;
1187         char inbuf[1024];
1188         BIO *cbio = NULL;
1189
1190         if (BIO_do_accept(acbio) <= 0)
1191                 {
1192                         BIO_printf(bio_err, "Error accepting connection\n");
1193                         ERR_print_errors(bio_err);
1194                         return 0;
1195                 }
1196
1197         cbio = BIO_pop(acbio);
1198         *pcbio = cbio;
1199
1200         for(;;)
1201                 {
1202                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1203                 if (len <= 0)
1204                         return 1;
1205                 /* Look for "POST" signalling start of query */
1206                 if (!have_post)
1207                         {
1208                         if(strncmp(inbuf, "POST", 4))
1209                                 {
1210                                 BIO_printf(bio_err, "Invalid request\n");
1211                                 return 1;
1212                                 }
1213                         have_post = 1;
1214                         }
1215                 /* Look for end of headers */
1216                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1217                         break;
1218                 }
1219
1220         /* Try to read OCSP request */
1221
1222         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1223
1224         if (!req)
1225                 {
1226                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1227                 ERR_print_errors(bio_err);
1228                 }
1229
1230         *preq = req;
1231
1232         return 1;
1233
1234         }
1235
1236 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1237         {
1238         char http_resp[] =
1239                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1240                 "Content-Length: %d\r\n\r\n";
1241         if (!cbio)
1242                 return 0;
1243         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1244         i2d_OCSP_RESPONSE_bio(cbio, resp);
1245         (void)BIO_flush(cbio);
1246         return 1;
1247         }
1248
1249 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1250                                 OCSP_REQUEST *req, int req_timeout)
1251         {
1252         int fd;
1253         int rv;
1254         OCSP_REQ_CTX *ctx = NULL;
1255         OCSP_RESPONSE *rsp = NULL;
1256         fd_set confds;
1257         struct timeval tv;
1258
1259         if (req_timeout != -1)
1260                 BIO_set_nbio(cbio, 1);
1261
1262         rv = BIO_do_connect(cbio);
1263
1264         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1265                 {
1266                 BIO_puts(err, "Error connecting BIO\n");
1267                 return NULL;
1268                 }
1269
1270         if (req_timeout == -1)
1271                 return OCSP_sendreq_bio(cbio, path, req);
1272
1273         if (BIO_get_fd(cbio, &fd) <= 0)
1274                 {
1275                 BIO_puts(err, "Can't get connection fd\n");
1276                 goto err;
1277                 }
1278
1279         if (rv <= 0)
1280                 {
1281                 FD_ZERO(&confds);
1282                 openssl_fdset(fd, &confds);
1283                 tv.tv_usec = 0;
1284                 tv.tv_sec = req_timeout;
1285                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1286                 if (rv == 0)
1287                         {
1288                         BIO_puts(err, "Timeout on connect\n");
1289                         return NULL;
1290                         }
1291                 }
1292
1293
1294         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1295         if (!ctx)
1296                 return NULL;
1297
1298         for (;;)
1299                 {
1300                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1301                 if (rv != -1)
1302                         break;
1303                 FD_ZERO(&confds);
1304                 openssl_fdset(fd, &confds);
1305                 tv.tv_usec = 0;
1306                 tv.tv_sec = req_timeout;
1307                 if (BIO_should_read(cbio))
1308                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1309                 else if (BIO_should_write(cbio))
1310                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1311                 else
1312                         {
1313                         BIO_puts(err, "Unexpected retry condition\n");
1314                         goto err;
1315                         }
1316                 if (rv == 0)
1317                         {
1318                         BIO_puts(err, "Timeout on request\n");
1319                         break;
1320                         }
1321                 if (rv == -1)
1322                         {
1323                         BIO_puts(err, "Select error\n");
1324                         break;
1325                         }
1326
1327                 }
1328         err:
1329         if (ctx)
1330                 OCSP_REQ_CTX_free(ctx);
1331
1332         return rsp;
1333         }
1334
1335 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1336                         char *host, char *path, char *port, int use_ssl,
1337                         int req_timeout)
1338         {
1339         BIO *cbio = NULL;
1340         SSL_CTX *ctx = NULL;
1341         OCSP_RESPONSE *resp = NULL;
1342         cbio = BIO_new_connect(host);
1343         if (!cbio)
1344                 {
1345                 BIO_printf(err, "Error creating connect BIO\n");
1346                 goto end;
1347                 }
1348         if (port) BIO_set_conn_port(cbio, port);
1349         if (use_ssl == 1)
1350                 {
1351                 BIO *sbio;
1352 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1353                 ctx = SSL_CTX_new(SSLv23_client_method());
1354 #elif !defined(OPENSSL_NO_SSL3)
1355                 ctx = SSL_CTX_new(SSLv3_client_method());
1356 #elif !defined(OPENSSL_NO_SSL2)
1357                 ctx = SSL_CTX_new(SSLv2_client_method());
1358 #else
1359                 BIO_printf(err, "SSL is disabled\n");
1360                         goto end;
1361 #endif
1362                 if (ctx == NULL)
1363                         {
1364                         BIO_printf(err, "Error creating SSL context.\n");
1365                         goto end;
1366                         }
1367                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1368                 sbio = BIO_new_ssl(ctx, 1);
1369                 cbio = BIO_push(sbio, cbio);
1370                 }
1371         resp = query_responder(err, cbio, path, req, req_timeout);
1372         if (!resp)
1373                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1374         end:
1375         if (ctx)
1376                 SSL_CTX_free(ctx);
1377         if (cbio)
1378                 BIO_free_all(cbio);
1379         return resp;
1380         }
1381
1382 #endif