apps/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #ifndef OPENSSL_NO_OCSP
  59
  60 #define _XOPEN_SOURCE_EXTENDED  /* So fd_set and friends get properly defined
  61                                    on OpenVMS */
  62
  63 #include <stdio.h>
  64 #include <stdlib.h>
  65 #include <string.h>
  66 #include <time.h>
  67 #include "apps.h" /* needs to be included before the openssl headers! */
  68 #include <openssl/e_os2.h>
  69 #include <openssl/crypto.h>
  70 #include <openssl/err.h>
  71 #include <openssl/ssl.h>
  72 #include <openssl/evp.h>
  73 #include <openssl/bn.h>
  74
  75 #if defined(NETWARE_CLIB)
  76 #  ifdef NETWARE_BSDSOCK
  77 #    include <sys/socket.h>
  78 #    include <sys/bsdskt.h>
  79 #  else
  80 #    include <novsock2.h>
  81 #  endif
  82 #elif defined(NETWARE_LIBC)
  83 #  ifdef NETWARE_BSDSOCK
  84 #    include <sys/select.h>
  85 #  else
  86 #    include <novsock2.h>
  87 #  endif
  88 #endif
  89
  90 /* Maximum leeway in validity period: default 5 minutes */
  91 #define MAX_VALIDITY_PERIOD     (5 * 60)
  92
  93 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  94                                 STACK_OF(OCSP_CERTID) *ids);
  95 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
  96                                 STACK_OF(OCSP_CERTID) *ids);
  97 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  98                               STACK_OF(STRING) *names,
  99                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 100                               long maxage);
 101
 102 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
 103                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
 104                         STACK_OF(X509) *rother, unsigned long flags,
 105                         int nmin, int ndays);
 106
 107 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 108 static BIO *init_responder(char *port);
 109 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 110 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 111 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 112                                 OCSP_REQUEST *req, int req_timeout);
 113
 114 #undef PROG
 115 #define PROG ocsp_main
 116
 117 int MAIN(int, char **);
 118
 119 int MAIN(int argc, char **argv)
 120         {
 121         ENGINE *e = NULL;
 122         char **args;
 123         char *host = NULL, *port = NULL, *path = "/";
 124         char *reqin = NULL, *respin = NULL;
 125         char *reqout = NULL, *respout = NULL;
 126         char *signfile = NULL, *keyfile = NULL;
 127         char *rsignfile = NULL, *rkeyfile = NULL;
 128         char *outfile = NULL;
 129         int add_nonce = 1, noverify = 0, use_ssl = -1;
 130         OCSP_REQUEST *req = NULL;
 131         OCSP_RESPONSE *resp = NULL;
 132         OCSP_BASICRESP *bs = NULL;
 133         X509 *issuer = NULL, *cert = NULL;
 134         X509 *signer = NULL, *rsigner = NULL;
 135         EVP_PKEY *key = NULL, *rkey = NULL;
 136         BIO *acbio = NULL, *cbio = NULL;
 137         BIO *derbio = NULL;
 138         BIO *out = NULL;
 139         int req_timeout = -1;
 140         int req_text = 0, resp_text = 0;
 141         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 142         char *CAfile = NULL, *CApath = NULL;
 143         X509_STORE *store = NULL;
 144         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 145         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 146         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 147         int ret = 1;
 148         int accept_count = -1;
 149         int badarg = 0;
 150         int i;
 151         int ignore_err = 0;
 152         STACK_OF(STRING) *reqnames = NULL;
 153         STACK_OF(OCSP_CERTID) *ids = NULL;
 154
 155         X509 *rca_cert = NULL;
 156         char *ridx_filename = NULL;
 157         char *rca_filename = NULL;
 158         CA_DB *rdb = NULL;
 159         int nmin = 0, ndays = -1;
 160         const EVP_MD *cert_id_md = NULL;
 161
 162         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 163
 164         if (!load_config(bio_err, NULL))
 165                 goto end;
 166         SSL_load_error_strings();
 167         OpenSSL_add_ssl_algorithms();
 168         args = argv + 1;
 169         reqnames = sk_STRING_new_null();
 170         ids = sk_OCSP_CERTID_new_null();
 171         while (!badarg && *args && *args[0] == '-')
 172                 {
 173                 if (!strcmp(*args, "-out"))
 174                         {
 175                         if (args[1])
 176                                 {
 177                                 args++;
 178                                 outfile = *args;
 179                                 }
 180                         else badarg = 1;
 181                         }
 182                 else if (!strcmp(*args, "-timeout"))
 183                         {
 184                         if (args[1])
 185                                 {
 186                                 args++;
 187                                 req_timeout = atol(*args);
 188                                 if (req_timeout < 0)
 189                                         {
 190                                         BIO_printf(bio_err,
 191                                                 "Illegal timeout value %s\n",
 192                                                 *args);
 193                                         badarg = 1;
 194                                         }
 195                                 }
 196                         else badarg = 1;
 197                         }
 198                 else if (!strcmp(*args, "-url"))
 199                         {
 200                         if (args[1])
 201                                 {
 202                                 args++;
 203                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 204                                         {
 205                                         BIO_printf(bio_err, "Error parsing URL\n");
 206                                         badarg = 1;
 207                                         }
 208                                 }
 209                         else badarg = 1;
 210                         }
 211                 else if (!strcmp(*args, "-host"))
 212                         {
 213                         if (args[1])
 214                                 {
 215                                 args++;
 216                                 host = *args;
 217                                 }
 218                         else badarg = 1;
 219                         }
 220                 else if (!strcmp(*args, "-port"))
 221                         {
 222                         if (args[1])
 223                                 {
 224                                 args++;
 225                                 port = *args;
 226                                 }
 227                         else badarg = 1;
 228                         }
 229                 else if (!strcmp(*args, "-ignore_err"))
 230                         ignore_err = 1;
 231                 else if (!strcmp(*args, "-noverify"))
 232                         noverify = 1;
 233                 else if (!strcmp(*args, "-nonce"))
 234                         add_nonce = 2;
 235                 else if (!strcmp(*args, "-no_nonce"))
 236                         add_nonce = 0;
 237                 else if (!strcmp(*args, "-resp_no_certs"))
 238                         rflags |= OCSP_NOCERTS;
 239                 else if (!strcmp(*args, "-resp_key_id"))
 240                         rflags |= OCSP_RESPID_KEY;
 241                 else if (!strcmp(*args, "-no_certs"))
 242                         sign_flags |= OCSP_NOCERTS;
 243                 else if (!strcmp(*args, "-no_signature_verify"))
 244                         verify_flags |= OCSP_NOSIGS;
 245                 else if (!strcmp(*args, "-no_cert_verify"))
 246                         verify_flags |= OCSP_NOVERIFY;
 247                 else if (!strcmp(*args, "-no_chain"))
 248                         verify_flags |= OCSP_NOCHAIN;
 249                 else if (!strcmp(*args, "-no_cert_checks"))
 250                         verify_flags |= OCSP_NOCHECKS;
 251                 else if (!strcmp(*args, "-no_explicit"))
 252                         verify_flags |= OCSP_NOEXPLICIT;
 253                 else if (!strcmp(*args, "-trust_other"))
 254                         verify_flags |= OCSP_TRUSTOTHER;
 255                 else if (!strcmp(*args, "-no_intern"))
 256                         verify_flags |= OCSP_NOINTERN;
 257                 else if (!strcmp(*args, "-text"))
 258                         {
 259                         req_text = 1;
 260                         resp_text = 1;
 261                         }
 262                 else if (!strcmp(*args, "-req_text"))
 263                         req_text = 1;
 264                 else if (!strcmp(*args, "-resp_text"))
 265                         resp_text = 1;
 266                 else if (!strcmp(*args, "-reqin"))
 267                         {
 268                         if (args[1])
 269                                 {
 270                                 args++;
 271                                 reqin = *args;
 272                                 }
 273                         else badarg = 1;
 274                         }
 275                 else if (!strcmp(*args, "-respin"))
 276                         {
 277                         if (args[1])
 278                                 {
 279                                 args++;
 280                                 respin = *args;
 281                                 }
 282                         else badarg = 1;
 283                         }
 284                 else if (!strcmp(*args, "-signer"))
 285                         {
 286                         if (args[1])
 287                                 {
 288                                 args++;
 289                                 signfile = *args;
 290                                 }
 291                         else badarg = 1;
 292                         }
 293                 else if (!strcmp (*args, "-VAfile"))
 294                         {
 295                         if (args[1])
 296                                 {
 297                                 args++;
 298                                 verify_certfile = *args;
 299                                 verify_flags |= OCSP_TRUSTOTHER;
 300                                 }
 301                         else badarg = 1;
 302                         }
 303                 else if (!strcmp(*args, "-sign_other"))
 304                         {
 305                         if (args[1])
 306                                 {
 307                                 args++;
 308                                 sign_certfile = *args;
 309                                 }
 310                         else badarg = 1;
 311                         }
 312                 else if (!strcmp(*args, "-verify_other"))
 313                         {
 314                         if (args[1])
 315                                 {
 316                                 args++;
 317                                 verify_certfile = *args;
 318                                 }
 319                         else badarg = 1;
 320                         }
 321                 else if (!strcmp (*args, "-CAfile"))
 322                         {
 323                         if (args[1])
 324                                 {
 325                                 args++;
 326                                 CAfile = *args;
 327                                 }
 328                         else badarg = 1;
 329                         }
 330                 else if (!strcmp (*args, "-CApath"))
 331                         {
 332                         if (args[1])
 333                                 {
 334                                 args++;
 335                                 CApath = *args;
 336                                 }
 337                         else badarg = 1;
 338                         }
 339                 else if (!strcmp (*args, "-validity_period"))
 340                         {
 341                         if (args[1])
 342                                 {
 343                                 args++;
 344                                 nsec = atol(*args);
 345                                 if (nsec < 0)
 346                                         {
 347                                         BIO_printf(bio_err,
 348                                                 "Illegal validity period %s\n",
 349                                                 *args);
 350                                         badarg = 1;
 351                                         }
 352                                 }
 353                         else badarg = 1;
 354                         }
 355                 else if (!strcmp (*args, "-status_age"))
 356                         {
 357                         if (args[1])
 358                                 {
 359                                 args++;
 360                                 maxage = atol(*args);
 361                                 if (maxage < 0)
 362                                         {
 363                                         BIO_printf(bio_err,
 364                                                 "Illegal validity age %s\n",
 365                                                 *args);
 366                                         badarg = 1;
 367                                         }
 368                                 }
 369                         else badarg = 1;
 370                         }
 371                  else if (!strcmp(*args, "-signkey"))
 372                         {
 373                         if (args[1])
 374                                 {
 375                                 args++;
 376                                 keyfile = *args;
 377                                 }
 378                         else badarg = 1;
 379                         }
 380                 else if (!strcmp(*args, "-reqout"))
 381                         {
 382                         if (args[1])
 383                                 {
 384                                 args++;
 385                                 reqout = *args;
 386                                 }
 387                         else badarg = 1;
 388                         }
 389                 else if (!strcmp(*args, "-respout"))
 390                         {
 391                         if (args[1])
 392                                 {
 393                                 args++;
 394                                 respout = *args;
 395                                 }
 396                         else badarg = 1;
 397                         }
 398                  else if (!strcmp(*args, "-path"))
 399                         {
 400                         if (args[1])
 401                                 {
 402                                 args++;
 403                                 path = *args;
 404                                 }
 405                         else badarg = 1;
 406                         }
 407                 else if (!strcmp(*args, "-issuer"))
 408                         {
 409                         if (args[1])
 410                                 {
 411                                 args++;
 412                                 X509_free(issuer);
 413                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 414                                         NULL, e, "issuer certificate");
 415                                 if(!issuer) goto end;
 416                                 }
 417                         else badarg = 1;
 418                         }
 419                 else if (!strcmp (*args, "-cert"))
 420                         {
 421                         if (args[1])
 422                                 {
 423                                 args++;
 424                                 X509_free(cert);
 425                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 426                                         NULL, e, "certificate");
 427                                 if(!cert) goto end;
 428                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 429                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 430                                         goto end;
 431                                 if(!sk_STRING_push(reqnames, *args))
 432                                         goto end;
 433                                 }
 434                         else badarg = 1;
 435                         }
 436                 else if (!strcmp(*args, "-serial"))
 437                         {
 438                         if (args[1])
 439                                 {
 440                                 args++;
 441                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 442                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 443                                         goto end;
 444                                 if(!sk_STRING_push(reqnames, *args))
 445                                         goto end;
 446                                 }
 447                         else badarg = 1;
 448                         }
 449                 else if (!strcmp(*args, "-index"))
 450                         {
 451                         if (args[1])
 452                                 {
 453                                 args++;
 454                                 ridx_filename = *args;
 455                                 }
 456                         else badarg = 1;
 457                         }
 458                 else if (!strcmp(*args, "-CA"))
 459                         {
 460                         if (args[1])
 461                                 {
 462                                 args++;
 463                                 rca_filename = *args;
 464                                 }
 465                         else badarg = 1;
 466                         }
 467                 else if (!strcmp (*args, "-nmin"))
 468                         {
 469                         if (args[1])
 470                                 {
 471                                 args++;
 472                                 nmin = atol(*args);
 473                                 if (nmin < 0)
 474                                         {
 475                                         BIO_printf(bio_err,
 476                                                 "Illegal update period %s\n",
 477                                                 *args);
 478                                         badarg = 1;
 479                                         }
 480                                 }
 481                                 if (ndays == -1)
 482                                         ndays = 0;
 483                         else badarg = 1;
 484                         }
 485                 else if (!strcmp (*args, "-nrequest"))
 486                         {
 487                         if (args[1])
 488                                 {
 489                                 args++;
 490                                 accept_count = atol(*args);
 491                                 if (accept_count < 0)
 492                                         {
 493                                         BIO_printf(bio_err,
 494                                                 "Illegal accept count %s\n",
 495                                                 *args);
 496                                         badarg = 1;
 497                                         }
 498                                 }
 499                         else badarg = 1;
 500                         }
 501                 else if (!strcmp (*args, "-ndays"))
 502                         {
 503                         if (args[1])
 504                                 {
 505                                 args++;
 506                                 ndays = atol(*args);
 507                                 if (ndays < 0)
 508                                         {
 509                                         BIO_printf(bio_err,
 510                                                 "Illegal update period %s\n",
 511                                                 *args);
 512                                         badarg = 1;
 513                                         }
 514                                 }
 515                         else badarg = 1;
 516                         }
 517                 else if (!strcmp(*args, "-rsigner"))
 518                         {
 519                         if (args[1])
 520                                 {
 521                                 args++;
 522                                 rsignfile = *args;
 523                                 }
 524                         else badarg = 1;
 525                         }
 526                 else if (!strcmp(*args, "-rkey"))
 527                         {
 528                         if (args[1])
 529                                 {
 530                                 args++;
 531                                 rkeyfile = *args;
 532                                 }
 533                         else badarg = 1;
 534                         }
 535                 else if (!strcmp(*args, "-rother"))
 536                         {
 537                         if (args[1])
 538                                 {
 539                                 args++;
 540                                 rcertfile = *args;
 541                                 }
 542                         else badarg = 1;
 543                         }
 544                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 545                         {
 546                         badarg = 1;
 547                         }
 548                 args++;
 549                 }
 550
 551         /* Have we anything to do? */
 552         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 553
 554         if (badarg)
 555                 {
 556                 BIO_printf (bio_err, "OCSP utility\n");
 557                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 558                 BIO_printf (bio_err, "where options are\n");
 559                 BIO_printf (bio_err, "-out file          output filename\n");
 560                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 561                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 562                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 563                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 564                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 565                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 566                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 567                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 568                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 569                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 570                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 571                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 572                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 573                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 574                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 575                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 576                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 577                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 578                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 579                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 580                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 581                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 582                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 583                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 584                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 585                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 586                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 587                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 588                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 589                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 590                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 591                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 592                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 593                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 594                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 595                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 596                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 597                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 598                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 599                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 600                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 601                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 602                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 603                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 604                 goto end;
 605                 }
 606
 607         if(outfile) out = BIO_new_file(outfile, "w");
 608         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 609
 610         if(!out)
 611                 {
 612                 BIO_printf(bio_err, "Error opening output file\n");
 613                 goto end;
 614                 }
 615
 616         if (!req && (add_nonce != 2)) add_nonce = 0;
 617
 618         if (!req && reqin)
 619                 {
 620                 derbio = BIO_new_file(reqin, "rb");
 621                 if (!derbio)
 622                         {
 623                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 624                         goto end;
 625                         }
 626                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 627                 BIO_free(derbio);
 628                 if(!req)
 629                         {
 630                         BIO_printf(bio_err, "Error reading OCSP request\n");
 631                         goto end;
 632                         }
 633                 }
 634
 635         if (!req && port)
 636                 {
 637                 acbio = init_responder(port);
 638                 if (!acbio)
 639                         goto end;
 640                 }
 641
 642         if (rsignfile && !rdb)
 643                 {
 644                 if (!rkeyfile) rkeyfile = rsignfile;
 645                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 646                         NULL, e, "responder certificate");
 647                 if (!rsigner)
 648                         {
 649                         BIO_printf(bio_err, "Error loading responder certificate\n");
 650                         goto end;
 651                         }
 652                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 653                         NULL, e, "CA certificate");
 654                 if (rcertfile)
 655                         {
 656                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 657                                 NULL, e, "responder other certificates");
 658                         if (!rother) goto end;
 659                         }
 660                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 661                         "responder private key");
 662                 if (!rkey)
 663                         goto end;
 664                 }
 665         if(acbio)
 666                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 667
 668         redo_accept:
 669
 670         if (acbio)
 671                 {
 672                 if (!do_responder(&req, &cbio, acbio, port))
 673                         goto end;
 674                 if (!req)
 675                         {
 676                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 677                         send_ocsp_response(cbio, resp);
 678                         goto done_resp;
 679                         }
 680                 }
 681
 682         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 683                 {
 684                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 685                 goto end;
 686                 }
 687
 688         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 689
 690         if (signfile)
 691                 {
 692                 if (!keyfile) keyfile = signfile;
 693                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 694                         NULL, e, "signer certificate");
 695                 if (!signer)
 696                         {
 697                         BIO_printf(bio_err, "Error loading signer certificate\n");
 698                         goto end;
 699                         }
 700                 if (sign_certfile)
 701                         {
 702                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 703                                 NULL, e, "signer certificates");
 704                         if (!sign_other) goto end;
 705                         }
 706                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 707                         "signer private key");
 708                 if (!key)
 709                         goto end;
 710
 711                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 712                         {
 713                         BIO_printf(bio_err, "Error signing OCSP request\n");
 714                         goto end;
 715                         }
 716                 }
 717
 718         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 719
 720         if (reqout)
 721                 {
 722                 derbio = BIO_new_file(reqout, "wb");
 723                 if(!derbio)
 724                         {
 725                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 726                         goto end;
 727                         }
 728                 i2d_OCSP_REQUEST_bio(derbio, req);
 729                 BIO_free(derbio);
 730                 }
 731
 732         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 733                 {
 734                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 735                 goto end;
 736                 }
 737
 738         if (ridx_filename && !rdb)
 739                 {
 740                 rdb = load_index(ridx_filename, NULL);
 741                 if (!rdb) goto end;
 742                 if (!index_index(rdb)) goto end;
 743                 }
 744
 745         if (rdb)
 746                 {
 747                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 748                 if (cbio)
 749                         send_ocsp_response(cbio, resp);
 750                 }
 751         else if (host)
 752                 {
 753 #ifndef OPENSSL_NO_SOCK
 754                 resp = process_responder(bio_err, req, host, path,
 755                                                 port, use_ssl, req_timeout);
 756                 if (!resp)
 757                         goto end;
 758 #else
 759                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 760                 goto end;
 761 #endif
 762                 }
 763         else if (respin)
 764                 {
 765                 derbio = BIO_new_file(respin, "rb");
 766                 if (!derbio)
 767                         {
 768                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 769                         goto end;
 770                         }
 771                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 772                 BIO_free(derbio);
 773                 if(!resp)
 774                         {
 775                         BIO_printf(bio_err, "Error reading OCSP response\n");
 776                         goto end;
 777                         }
 778
 779                 }
 780         else
 781                 {
 782                 ret = 0;
 783                 goto end;
 784                 }
 785
 786         done_resp:
 787
 788         if (respout)
 789                 {
 790                 derbio = BIO_new_file(respout, "wb");
 791                 if(!derbio)
 792                         {
 793                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 794                         goto end;
 795                         }
 796                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 797                 BIO_free(derbio);
 798                 }
 799
 800         i = OCSP_response_status(resp);
 801
 802         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 803                 {
 804                 BIO_printf(out, "Responder Error: %s (%d)\n",
 805                                 OCSP_response_status_str(i), i);
 806                 if (ignore_err)
 807                         goto redo_accept;
 808                 ret = 0;
 809                 goto end;
 810                 }
 811
 812         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 813
 814         /* If running as responder don't verify our own response */
 815         if (cbio)
 816                 {
 817                 if (accept_count > 0)
 818                         accept_count--;
 819                 /* Redo if more connections needed */
 820                 if (accept_count)
 821                         {
 822                         BIO_free_all(cbio);
 823                         cbio = NULL;
 824                         OCSP_REQUEST_free(req);
 825                         req = NULL;
 826                         OCSP_RESPONSE_free(resp);
 827                         resp = NULL;
 828                         goto redo_accept;
 829                         }
 830                 goto end;
 831                 }
 832
 833         if (!store)
 834                 store = setup_verify(bio_err, CAfile, CApath);
 835         if (!store)
 836                 goto end;
 837         if (verify_certfile)
 838                 {
 839                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 840                         NULL, e, "validator certificate");
 841                 if (!verify_other) goto end;
 842                 }
 843
 844         bs = OCSP_response_get1_basic(resp);
 845
 846         if (!bs)
 847                 {
 848                 BIO_printf(bio_err, "Error parsing response\n");
 849                 goto end;
 850                 }
 851
 852         if (!noverify)
 853                 {
 854                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 855                         {
 856                         if (i == -1)
 857                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 858                         else
 859                                 {
 860                                 BIO_printf(bio_err, "Nonce Verify error\n");
 861                                 goto end;
 862                                 }
 863                         }
 864
 865                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 866                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 867
 868                 if(i <= 0)
 869                         {
 870                         BIO_printf(bio_err, "Response Verify Failure\n");
 871                         ERR_print_errors(bio_err);
 872                         }
 873                 else
 874                         BIO_printf(bio_err, "Response verify OK\n");
 875
 876                 }
 877
 878         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 879                 goto end;
 880
 881         ret = 0;
 882
 883 end:
 884         ERR_print_errors(bio_err);
 885         X509_free(signer);
 886         X509_STORE_free(store);
 887         EVP_PKEY_free(key);
 888         EVP_PKEY_free(rkey);
 889         X509_free(issuer);
 890         X509_free(cert);
 891         X509_free(rsigner);
 892         X509_free(rca_cert);
 893         free_index(rdb);
 894         BIO_free_all(cbio);
 895         BIO_free_all(acbio);
 896         BIO_free(out);
 897         OCSP_REQUEST_free(req);
 898         OCSP_RESPONSE_free(resp);
 899         OCSP_BASICRESP_free(bs);
 900         sk_STRING_free(reqnames);
 901         sk_OCSP_CERTID_free(ids);
 902         sk_X509_pop_free(sign_other, X509_free);
 903         sk_X509_pop_free(verify_other, X509_free);
 904
 905         if (use_ssl != -1)
 906                 {
 907                 OPENSSL_free(host);
 908                 OPENSSL_free(port);
 909                 OPENSSL_free(path);
 910                 }
 911
 912         OPENSSL_EXIT(ret);
 913 }
 914
 915 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 916                                 STACK_OF(OCSP_CERTID) *ids)
 917         {
 918         OCSP_CERTID *id;
 919         if(!issuer)
 920                 {
 921                 BIO_printf(bio_err, "No issuer certificate specified\n");
 922                 return 0;
 923                 }
 924         if(!*req) *req = OCSP_REQUEST_new();
 925         if(!*req) goto err;
 926         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 927         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 928         if(!OCSP_request_add0_id(*req, id)) goto err;
 929         return 1;
 930
 931         err:
 932         BIO_printf(bio_err, "Error Creating OCSP request\n");
 933         return 0;
 934         }
 935
 936 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 937                                 STACK_OF(OCSP_CERTID) *ids)
 938         {
 939         OCSP_CERTID *id;
 940         X509_NAME *iname;
 941         ASN1_BIT_STRING *ikey;
 942         ASN1_INTEGER *sno;
 943         if(!issuer)
 944                 {
 945                 BIO_printf(bio_err, "No issuer certificate specified\n");
 946                 return 0;
 947                 }
 948         if(!*req) *req = OCSP_REQUEST_new();
 949         if(!*req) goto err;
 950         iname = X509_get_subject_name(issuer);
 951         ikey = X509_get0_pubkey_bitstr(issuer);
 952         sno = s2i_ASN1_INTEGER(NULL, serial);
 953         if(!sno)
 954                 {
 955                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 956                 return 0;
 957                 }
 958         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 959         ASN1_INTEGER_free(sno);
 960         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 961         if(!OCSP_request_add0_id(*req, id)) goto err;
 962         return 1;
 963
 964         err:
 965         BIO_printf(bio_err, "Error Creating OCSP request\n");
 966         return 0;
 967         }
 968
 969 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 970                               STACK_OF(STRING) *names,
 971                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 972                               long maxage)
 973         {
 974         OCSP_CERTID *id;
 975         char *name;
 976         int i;
 977
 978         int status, reason;
 979
 980         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 981
 982         if (!bs || !req || !sk_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
 983                 return 1;
 984
 985         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 986                 {
 987                 id = sk_OCSP_CERTID_value(ids, i);
 988                 name = sk_STRING_value(names, i);
 989                 BIO_printf(out, "%s: ", name);
 990
 991                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 992                                         &rev, &thisupd, &nextupd))
 993                         {
 994                         BIO_puts(out, "ERROR: No Status found.\n");
 995                         continue;
 996                         }
 997
 998                 /* Check validity: if invalid write to output BIO so we
 999                  * know which response this refers to.
1000                  */
1001                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1002                         {
1003                         BIO_puts(out, "WARNING: Status times invalid.\n");
1004                         ERR_print_errors(out);
1005                         }
1006                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1007
1008                 BIO_puts(out, "\tThis Update: ");
1009                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1010                 BIO_puts(out, "\n");
1011
1012                 if(nextupd)
1013                         {
1014                         BIO_puts(out, "\tNext Update: ");
1015                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1016                         BIO_puts(out, "\n");
1017                         }
1018
1019                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1020                         continue;
1021
1022                 if (reason != -1)
1023                         BIO_printf(out, "\tReason: %s\n",
1024                                 OCSP_crl_reason_str(reason));
1025
1026                 BIO_puts(out, "\tRevocation Time: ");
1027                 ASN1_GENERALIZEDTIME_print(out, rev);
1028                 BIO_puts(out, "\n");
1029                 }
1030
1031         return 1;
1032         }
1033
1034
1035 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1036                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1037                         STACK_OF(X509) *rother, unsigned long flags,
1038                         int nmin, int ndays)
1039         {
1040         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1041         OCSP_CERTID *cid, *ca_id = NULL;
1042         OCSP_BASICRESP *bs = NULL;
1043         int i, id_count, ret = 1;
1044
1045         id_count = OCSP_request_onereq_count(req);
1046
1047         if (id_count <= 0)
1048                 {
1049                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1050                 goto end;
1051                 }
1052
1053
1054         bs = OCSP_BASICRESP_new();
1055         thisupd = X509_gmtime_adj(NULL, 0);
1056         if (ndays != -1)
1057                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1058
1059         /* Examine each certificate id in the request */
1060         for (i = 0; i < id_count; i++)
1061                 {
1062                 OCSP_ONEREQ *one;
1063                 ASN1_INTEGER *serial;
1064                 char **inf;
1065                 ASN1_OBJECT *cert_id_md_oid;
1066                 const EVP_MD *cert_id_md;
1067                 one = OCSP_request_onereq_get0(req, i);
1068                 cid = OCSP_onereq_get0_id(one);
1069
1070                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1071
1072                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1073                 if (! cert_id_md)
1074                         {
1075                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1076                                 NULL);
1077                                 goto end;
1078                         }
1079                 if (ca_id) OCSP_CERTID_free(ca_id);
1080                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1081
1082                 /* Is this request about our CA? */
1083                 if (OCSP_id_issuer_cmp(ca_id, cid))
1084                         {
1085                         OCSP_basic_add1_status(bs, cid,
1086                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1087                                                 0, NULL,
1088                                                 thisupd, nextupd);
1089                         continue;
1090                         }
1091                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1092                 inf = lookup_serial(db, serial);
1093                 if (!inf)
1094                         OCSP_basic_add1_status(bs, cid,
1095                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1096                                                 0, NULL,
1097                                                 thisupd, nextupd);
1098                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1099                         OCSP_basic_add1_status(bs, cid,
1100                                                 V_OCSP_CERTSTATUS_GOOD,
1101                                                 0, NULL,
1102                                                 thisupd, nextupd);
1103                 else if (inf[DB_type][0] == DB_TYPE_REV)
1104                         {
1105                         ASN1_OBJECT *inst = NULL;
1106                         ASN1_TIME *revtm = NULL;
1107                         ASN1_GENERALIZEDTIME *invtm = NULL;
1108                         OCSP_SINGLERESP *single;
1109                         int reason = -1;
1110                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1111                         single = OCSP_basic_add1_status(bs, cid,
1112                                                 V_OCSP_CERTSTATUS_REVOKED,
1113                                                 reason, revtm,
1114                                                 thisupd, nextupd);
1115                         if (invtm)
1116                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1117                         else if (inst)
1118                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1119                         ASN1_OBJECT_free(inst);
1120                         ASN1_TIME_free(revtm);
1121                         ASN1_GENERALIZEDTIME_free(invtm);
1122                         }
1123                 }
1124
1125         OCSP_copy_nonce(bs, req);
1126
1127         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1128
1129         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1130
1131         end:
1132         ASN1_TIME_free(thisupd);
1133         ASN1_TIME_free(nextupd);
1134         OCSP_CERTID_free(ca_id);
1135         OCSP_BASICRESP_free(bs);
1136         return ret;
1137
1138         }
1139
1140 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1141         {
1142         int i;
1143         BIGNUM *bn = NULL;
1144         char *itmp, *row[DB_NUMBER],**rrow;
1145         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1146         bn = ASN1_INTEGER_to_BN(ser,NULL);
1147         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1148         if (BN_is_zero(bn))
1149                 itmp = BUF_strdup("00");
1150         else
1151                 itmp = BN_bn2hex(bn);
1152         row[DB_serial] = itmp;
1153         BN_free(bn);
1154         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1155         OPENSSL_free(itmp);
1156         return rrow;
1157         }
1158
1159 /* Quick and dirty OCSP server: read in and parse input request */
1160
1161 static BIO *init_responder(char *port)
1162         {
1163         BIO *acbio = NULL, *bufbio = NULL;
1164         bufbio = BIO_new(BIO_f_buffer());
1165         if (!bufbio)
1166                 goto err;
1167 #ifndef OPENSSL_NO_SOCK
1168         acbio = BIO_new_accept(port);
1169 #else
1170         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1171 #endif
1172         if (!acbio)
1173                 goto err;
1174         BIO_set_accept_bios(acbio, bufbio);
1175         bufbio = NULL;
1176
1177         if (BIO_do_accept(acbio) <= 0)
1178                 {
1179                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1180                         ERR_print_errors(bio_err);
1181                         goto err;
1182                 }
1183
1184         return acbio;
1185
1186         err:
1187         BIO_free_all(acbio);
1188         BIO_free(bufbio);
1189         return NULL;
1190         }
1191
1192 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1193         {
1194         int have_post = 0, len;
1195         OCSP_REQUEST *req = NULL;
1196         char inbuf[1024];
1197         BIO *cbio = NULL;
1198
1199         if (BIO_do_accept(acbio) <= 0)
1200                 {
1201                         BIO_printf(bio_err, "Error accepting connection\n");
1202                         ERR_print_errors(bio_err);
1203                         return 0;
1204                 }
1205
1206         cbio = BIO_pop(acbio);
1207         *pcbio = cbio;
1208
1209         for(;;)
1210                 {
1211                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1212                 if (len <= 0)
1213                         return 1;
1214                 /* Look for "POST" signalling start of query */
1215                 if (!have_post)
1216                         {
1217                         if(strncmp(inbuf, "POST", 4))
1218                                 {
1219                                 BIO_printf(bio_err, "Invalid request\n");
1220                                 return 1;
1221                                 }
1222                         have_post = 1;
1223                         }
1224                 /* Look for end of headers */
1225                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1226                         break;
1227                 }
1228
1229         /* Try to read OCSP request */
1230
1231         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1232
1233         if (!req)
1234                 {
1235                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1236                 ERR_print_errors(bio_err);
1237                 }
1238
1239         *preq = req;
1240
1241         return 1;
1242
1243         }
1244
1245 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1246         {
1247         char http_resp[] =
1248                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1249                 "Content-Length: %d\r\n\r\n";
1250         if (!cbio)
1251                 return 0;
1252         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1253         i2d_OCSP_RESPONSE_bio(cbio, resp);
1254         (void)BIO_flush(cbio);
1255         return 1;
1256         }
1257
1258 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1259                                 OCSP_REQUEST *req, int req_timeout)
1260         {
1261         int fd;
1262         int rv;
1263         OCSP_REQ_CTX *ctx = NULL;
1264         OCSP_RESPONSE *rsp = NULL;
1265         fd_set confds;
1266         struct timeval tv;
1267
1268         if (req_timeout != -1)
1269                 BIO_set_nbio(cbio, 1);
1270
1271         rv = BIO_do_connect(cbio);
1272
1273         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1274                 {
1275                 BIO_puts(err, "Error connecting BIO\n");
1276                 return NULL;
1277                 }
1278
1279         if (req_timeout == -1)
1280                 return OCSP_sendreq_bio(cbio, path, req);
1281
1282         if (BIO_get_fd(cbio, &fd) <= 0)
1283                 {
1284                 BIO_puts(err, "Can't get connection fd\n");
1285                 goto err;
1286                 }
1287
1288         if (rv <= 0)
1289                 {
1290                 FD_ZERO(&confds);
1291                 openssl_fdset(fd, &confds);
1292                 tv.tv_usec = 0;
1293                 tv.tv_sec = req_timeout;
1294                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1295                 if (rv == 0)
1296                         {
1297                         BIO_puts(err, "Timeout on connect\n");
1298                         return NULL;
1299                         }
1300                 }
1301
1302
1303         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1304         if (!ctx)
1305                 return NULL;
1306
1307         for (;;)
1308                 {
1309                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1310                 if (rv != -1)
1311                         break;
1312                 FD_ZERO(&confds);
1313                 openssl_fdset(fd, &confds);
1314                 tv.tv_usec = 0;
1315                 tv.tv_sec = req_timeout;
1316                 if (BIO_should_read(cbio))
1317                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1318                 else if (BIO_should_write(cbio))
1319                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1320                 else
1321                         {
1322                         BIO_puts(err, "Unexpected retry condition\n");
1323                         goto err;
1324                         }
1325                 if (rv == 0)
1326                         {
1327                         BIO_puts(err, "Timeout on request\n");
1328                         break;
1329                         }
1330                 if (rv == -1)
1331                         {
1332                         BIO_puts(err, "Select error\n");
1333                         break;
1334                         }
1335
1336                 }
1337         err:
1338         if (ctx)
1339                 OCSP_REQ_CTX_free(ctx);
1340
1341         return rsp;
1342         }
1343
1344 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1345                         char *host, char *path, char *port, int use_ssl,
1346                         int req_timeout)
1347         {
1348         BIO *cbio = NULL;
1349         SSL_CTX *ctx = NULL;
1350         OCSP_RESPONSE *resp = NULL;
1351         cbio = BIO_new_connect(host);
1352         if (!cbio)
1353                 {
1354                 BIO_printf(err, "Error creating connect BIO\n");
1355                 goto end;
1356                 }
1357         if (port) BIO_set_conn_port(cbio, port);
1358         if (use_ssl == 1)
1359                 {
1360                 BIO *sbio;
1361 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1362                 ctx = SSL_CTX_new(SSLv23_client_method());
1363 #elif !defined(OPENSSL_NO_SSL3)
1364                 ctx = SSL_CTX_new(SSLv3_client_method());
1365 #elif !defined(OPENSSL_NO_SSL2)
1366                 ctx = SSL_CTX_new(SSLv2_client_method());
1367 #else
1368                 BIO_printf(err, "SSL is disabled\n");
1369                         goto end;
1370 #endif
1371                 if (ctx == NULL)
1372                         {
1373                         BIO_printf(err, "Error creating SSL context.\n");
1374                         goto end;
1375                         }
1376                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1377                 sbio = BIO_new_ssl(ctx, 1);
1378                 cbio = BIO_push(sbio, cbio);
1379                 }
1380         resp = query_responder(err, cbio, path, req, req_timeout);
1381         if (!resp)
1382                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1383         end:
1384         if (ctx)
1385                 SSL_CTX_free(ctx);
1386         if (cbio)
1387                 BIO_free_all(cbio);
1388         return resp;
1389         }
1390
1391 #endif