apps/ocsp.c

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