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 #ifdef OPENSSL_SYS_VMS
  61 #define _XOPEN_SOURCE_EXTENDED  /* So fd_set and friends get properly defined
  62                                    on OpenVMS */
  63 #endif
  64
  65 #include <stdio.h>
  66 #include <stdlib.h>
  67 #include <string.h>
  68 #include <time.h>
  69 #include "apps.h" /* needs to be included before the openssl headers! */
  70 #include <openssl/e_os2.h>
  71 #include <openssl/crypto.h>
  72 #include <openssl/err.h>
  73 #include <openssl/ssl.h>
  74 #include <openssl/evp.h>
  75 #include <openssl/bn.h>
  76
  77 #if defined(NETWARE_CLIB)
  78 #  ifdef NETWARE_BSDSOCK
  79 #    include <sys/socket.h>
  80 #    include <sys/bsdskt.h>
  81 #  else
  82 #    include <novsock2.h>
  83 #  endif
  84 #elif defined(NETWARE_LIBC)
  85 #  ifdef NETWARE_BSDSOCK
  86 #    include <sys/select.h>
  87 #  else
  88 #    include <novsock2.h>
  89 #  endif
  90 #endif
  91
  92 /* Maximum leeway in validity period: default 5 minutes */
  93 #define MAX_VALIDITY_PERIOD     (5 * 60)
  94
  95 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  96                                 STACK_OF(OCSP_CERTID) *ids);
  97 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
  98                                 STACK_OF(OCSP_CERTID) *ids);
  99 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 100                               STACK_OF(STRING) *names,
 101                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 102                               long maxage);
 103
 104 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
 105                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
 106                         STACK_OF(X509) *rother, unsigned long flags,
 107                         int nmin, int ndays);
 108
 109 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 110 static BIO *init_responder(char *port);
 111 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 112 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 113 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 114                                 OCSP_REQUEST *req, int req_timeout);
 115
 116 #undef PROG
 117 #define PROG ocsp_main
 118
 119 int MAIN(int, char **);
 120
 121 int MAIN(int argc, char **argv)
 122         {
 123         ENGINE *e = NULL;
 124         char **args;
 125         char *host = NULL, *port = NULL, *path = "/";
 126         char *reqin = NULL, *respin = NULL;
 127         char *reqout = NULL, *respout = NULL;
 128         char *signfile = NULL, *keyfile = NULL;
 129         char *rsignfile = NULL, *rkeyfile = NULL;
 130         char *outfile = NULL;
 131         int add_nonce = 1, noverify = 0, use_ssl = -1;
 132         OCSP_REQUEST *req = NULL;
 133         OCSP_RESPONSE *resp = NULL;
 134         OCSP_BASICRESP *bs = NULL;
 135         X509 *issuer = NULL, *cert = NULL;
 136         X509 *signer = NULL, *rsigner = NULL;
 137         EVP_PKEY *key = NULL, *rkey = NULL;
 138         BIO *acbio = NULL, *cbio = NULL;
 139         BIO *derbio = NULL;
 140         BIO *out = NULL;
 141         int req_timeout = -1;
 142         int req_text = 0, resp_text = 0;
 143         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 144         char *CAfile = NULL, *CApath = NULL;
 145         X509_STORE *store = NULL;
 146         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 147         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 148         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 149         int ret = 1;
 150         int accept_count = -1;
 151         int badarg = 0;
 152         int i;
 153         int ignore_err = 0;
 154         STACK_OF(STRING) *reqnames = NULL;
 155         STACK_OF(OCSP_CERTID) *ids = NULL;
 156
 157         X509 *rca_cert = NULL;
 158         char *ridx_filename = NULL;
 159         char *rca_filename = NULL;
 160         CA_DB *rdb = NULL;
 161         int nmin = 0, ndays = -1;
 162         const EVP_MD *cert_id_md = NULL;
 163
 164         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 165
 166         if (!load_config(bio_err, NULL))
 167                 goto end;
 168         SSL_load_error_strings();
 169         OpenSSL_add_ssl_algorithms();
 170         args = argv + 1;
 171         reqnames = sk_STRING_new_null();
 172         ids = sk_OCSP_CERTID_new_null();
 173         while (!badarg && *args && *args[0] == '-')
 174                 {
 175                 if (!strcmp(*args, "-out"))
 176                         {
 177                         if (args[1])
 178                                 {
 179                                 args++;
 180                                 outfile = *args;
 181                                 }
 182                         else badarg = 1;
 183                         }
 184                 else if (!strcmp(*args, "-timeout"))
 185                         {
 186                         if (args[1])
 187                                 {
 188                                 args++;
 189                                 req_timeout = atol(*args);
 190                                 if (req_timeout < 0)
 191                                         {
 192                                         BIO_printf(bio_err,
 193                                                 "Illegal timeout value %s\n",
 194                                                 *args);
 195                                         badarg = 1;
 196                                         }
 197                                 }
 198                         else badarg = 1;
 199                         }
 200                 else if (!strcmp(*args, "-url"))
 201                         {
 202                         if (args[1])
 203                                 {
 204                                 args++;
 205                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 206                                         {
 207                                         BIO_printf(bio_err, "Error parsing URL\n");
 208                                         badarg = 1;
 209                                         }
 210                                 }
 211                         else badarg = 1;
 212                         }
 213                 else if (!strcmp(*args, "-host"))
 214                         {
 215                         if (args[1])
 216                                 {
 217                                 args++;
 218                                 host = *args;
 219                                 }
 220                         else badarg = 1;
 221                         }
 222                 else if (!strcmp(*args, "-port"))
 223                         {
 224                         if (args[1])
 225                                 {
 226                                 args++;
 227                                 port = *args;
 228                                 }
 229                         else badarg = 1;
 230                         }
 231                 else if (!strcmp(*args, "-ignore_err"))
 232                         ignore_err = 1;
 233                 else if (!strcmp(*args, "-noverify"))
 234                         noverify = 1;
 235                 else if (!strcmp(*args, "-nonce"))
 236                         add_nonce = 2;
 237                 else if (!strcmp(*args, "-no_nonce"))
 238                         add_nonce = 0;
 239                 else if (!strcmp(*args, "-resp_no_certs"))
 240                         rflags |= OCSP_NOCERTS;
 241                 else if (!strcmp(*args, "-resp_key_id"))
 242                         rflags |= OCSP_RESPID_KEY;
 243                 else if (!strcmp(*args, "-no_certs"))
 244                         sign_flags |= OCSP_NOCERTS;
 245                 else if (!strcmp(*args, "-no_signature_verify"))
 246                         verify_flags |= OCSP_NOSIGS;
 247                 else if (!strcmp(*args, "-no_cert_verify"))
 248                         verify_flags |= OCSP_NOVERIFY;
 249                 else if (!strcmp(*args, "-no_chain"))
 250                         verify_flags |= OCSP_NOCHAIN;
 251                 else if (!strcmp(*args, "-no_cert_checks"))
 252                         verify_flags |= OCSP_NOCHECKS;
 253                 else if (!strcmp(*args, "-no_explicit"))
 254                         verify_flags |= OCSP_NOEXPLICIT;
 255                 else if (!strcmp(*args, "-trust_other"))
 256                         verify_flags |= OCSP_TRUSTOTHER;
 257                 else if (!strcmp(*args, "-no_intern"))
 258                         verify_flags |= OCSP_NOINTERN;
 259                 else if (!strcmp(*args, "-text"))
 260                         {
 261                         req_text = 1;
 262                         resp_text = 1;
 263                         }
 264                 else if (!strcmp(*args, "-req_text"))
 265                         req_text = 1;
 266                 else if (!strcmp(*args, "-resp_text"))
 267                         resp_text = 1;
 268                 else if (!strcmp(*args, "-reqin"))
 269                         {
 270                         if (args[1])
 271                                 {
 272                                 args++;
 273                                 reqin = *args;
 274                                 }
 275                         else badarg = 1;
 276                         }
 277                 else if (!strcmp(*args, "-respin"))
 278                         {
 279                         if (args[1])
 280                                 {
 281                                 args++;
 282                                 respin = *args;
 283                                 }
 284                         else badarg = 1;
 285                         }
 286                 else if (!strcmp(*args, "-signer"))
 287                         {
 288                         if (args[1])
 289                                 {
 290                                 args++;
 291                                 signfile = *args;
 292                                 }
 293                         else badarg = 1;
 294                         }
 295                 else if (!strcmp (*args, "-VAfile"))
 296                         {
 297                         if (args[1])
 298                                 {
 299                                 args++;
 300                                 verify_certfile = *args;
 301                                 verify_flags |= OCSP_TRUSTOTHER;
 302                                 }
 303                         else badarg = 1;
 304                         }
 305                 else if (!strcmp(*args, "-sign_other"))
 306                         {
 307                         if (args[1])
 308                                 {
 309                                 args++;
 310                                 sign_certfile = *args;
 311                                 }
 312                         else badarg = 1;
 313                         }
 314                 else if (!strcmp(*args, "-verify_other"))
 315                         {
 316                         if (args[1])
 317                                 {
 318                                 args++;
 319                                 verify_certfile = *args;
 320                                 }
 321                         else badarg = 1;
 322                         }
 323                 else if (!strcmp (*args, "-CAfile"))
 324                         {
 325                         if (args[1])
 326                                 {
 327                                 args++;
 328                                 CAfile = *args;
 329                                 }
 330                         else badarg = 1;
 331                         }
 332                 else if (!strcmp (*args, "-CApath"))
 333                         {
 334                         if (args[1])
 335                                 {
 336                                 args++;
 337                                 CApath = *args;
 338                                 }
 339                         else badarg = 1;
 340                         }
 341                 else if (!strcmp (*args, "-validity_period"))
 342                         {
 343                         if (args[1])
 344                                 {
 345                                 args++;
 346                                 nsec = atol(*args);
 347                                 if (nsec < 0)
 348                                         {
 349                                         BIO_printf(bio_err,
 350                                                 "Illegal validity period %s\n",
 351                                                 *args);
 352                                         badarg = 1;
 353                                         }
 354                                 }
 355                         else badarg = 1;
 356                         }
 357                 else if (!strcmp (*args, "-status_age"))
 358                         {
 359                         if (args[1])
 360                                 {
 361                                 args++;
 362                                 maxage = atol(*args);
 363                                 if (maxage < 0)
 364                                         {
 365                                         BIO_printf(bio_err,
 366                                                 "Illegal validity age %s\n",
 367                                                 *args);
 368                                         badarg = 1;
 369                                         }
 370                                 }
 371                         else badarg = 1;
 372                         }
 373                  else if (!strcmp(*args, "-signkey"))
 374                         {
 375                         if (args[1])
 376                                 {
 377                                 args++;
 378                                 keyfile = *args;
 379                                 }
 380                         else badarg = 1;
 381                         }
 382                 else if (!strcmp(*args, "-reqout"))
 383                         {
 384                         if (args[1])
 385                                 {
 386                                 args++;
 387                                 reqout = *args;
 388                                 }
 389                         else badarg = 1;
 390                         }
 391                 else if (!strcmp(*args, "-respout"))
 392                         {
 393                         if (args[1])
 394                                 {
 395                                 args++;
 396                                 respout = *args;
 397                                 }
 398                         else badarg = 1;
 399                         }
 400                  else if (!strcmp(*args, "-path"))
 401                         {
 402                         if (args[1])
 403                                 {
 404                                 args++;
 405                                 path = *args;
 406                                 }
 407                         else badarg = 1;
 408                         }
 409                 else if (!strcmp(*args, "-issuer"))
 410                         {
 411                         if (args[1])
 412                                 {
 413                                 args++;
 414                                 X509_free(issuer);
 415                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 416                                         NULL, e, "issuer certificate");
 417                                 if(!issuer) goto end;
 418                                 }
 419                         else badarg = 1;
 420                         }
 421                 else if (!strcmp (*args, "-cert"))
 422                         {
 423                         if (args[1])
 424                                 {
 425                                 args++;
 426                                 X509_free(cert);
 427                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 428                                         NULL, e, "certificate");
 429                                 if(!cert) goto end;
 430                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 431                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 432                                         goto end;
 433                                 if(!sk_STRING_push(reqnames, *args))
 434                                         goto end;
 435                                 }
 436                         else badarg = 1;
 437                         }
 438                 else if (!strcmp(*args, "-serial"))
 439                         {
 440                         if (args[1])
 441                                 {
 442                                 args++;
 443                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 444                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 445                                         goto end;
 446                                 if(!sk_STRING_push(reqnames, *args))
 447                                         goto end;
 448                                 }
 449                         else badarg = 1;
 450                         }
 451                 else if (!strcmp(*args, "-index"))
 452                         {
 453                         if (args[1])
 454                                 {
 455                                 args++;
 456                                 ridx_filename = *args;
 457                                 }
 458                         else badarg = 1;
 459                         }
 460                 else if (!strcmp(*args, "-CA"))
 461                         {
 462                         if (args[1])
 463                                 {
 464                                 args++;
 465                                 rca_filename = *args;
 466                                 }
 467                         else badarg = 1;
 468                         }
 469                 else if (!strcmp (*args, "-nmin"))
 470                         {
 471                         if (args[1])
 472                                 {
 473                                 args++;
 474                                 nmin = atol(*args);
 475                                 if (nmin < 0)
 476                                         {
 477                                         BIO_printf(bio_err,
 478                                                 "Illegal update period %s\n",
 479                                                 *args);
 480                                         badarg = 1;
 481                                         }
 482                                 }
 483                                 if (ndays == -1)
 484                                         ndays = 0;
 485                         else badarg = 1;
 486                         }
 487                 else if (!strcmp (*args, "-nrequest"))
 488                         {
 489                         if (args[1])
 490                                 {
 491                                 args++;
 492                                 accept_count = atol(*args);
 493                                 if (accept_count < 0)
 494                                         {
 495                                         BIO_printf(bio_err,
 496                                                 "Illegal accept count %s\n",
 497                                                 *args);
 498                                         badarg = 1;
 499                                         }
 500                                 }
 501                         else badarg = 1;
 502                         }
 503                 else if (!strcmp (*args, "-ndays"))
 504                         {
 505                         if (args[1])
 506                                 {
 507                                 args++;
 508                                 ndays = atol(*args);
 509                                 if (ndays < 0)
 510                                         {
 511                                         BIO_printf(bio_err,
 512                                                 "Illegal update period %s\n",
 513                                                 *args);
 514                                         badarg = 1;
 515                                         }
 516                                 }
 517                         else badarg = 1;
 518                         }
 519                 else if (!strcmp(*args, "-rsigner"))
 520                         {
 521                         if (args[1])
 522                                 {
 523                                 args++;
 524                                 rsignfile = *args;
 525                                 }
 526                         else badarg = 1;
 527                         }
 528                 else if (!strcmp(*args, "-rkey"))
 529                         {
 530                         if (args[1])
 531                                 {
 532                                 args++;
 533                                 rkeyfile = *args;
 534                                 }
 535                         else badarg = 1;
 536                         }
 537                 else if (!strcmp(*args, "-rother"))
 538                         {
 539                         if (args[1])
 540                                 {
 541                                 args++;
 542                                 rcertfile = *args;
 543                                 }
 544                         else badarg = 1;
 545                         }
 546                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 547                         {
 548                         badarg = 1;
 549                         }
 550                 args++;
 551                 }
 552
 553         /* Have we anything to do? */
 554         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 555
 556         if (badarg)
 557                 {
 558                 BIO_printf (bio_err, "OCSP utility\n");
 559                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 560                 BIO_printf (bio_err, "where options are\n");
 561                 BIO_printf (bio_err, "-out file          output filename\n");
 562                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 563                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 564                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 565                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 566                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 567                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 568                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 569                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 570                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 571                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 572                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 573                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 574                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 575                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 576                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 577                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 578                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 579                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 580                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 581                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 582                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 583                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 584                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 585                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 586                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 587                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 588                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 589                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 590                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 591                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 592                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 593                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 594                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 595                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 596                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 597                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 598                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 599                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 600                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 601                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 602                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 603                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 604                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 605                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 606                 goto end;
 607                 }
 608
 609         if(outfile) out = BIO_new_file(outfile, "w");
 610         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 611
 612         if(!out)
 613                 {
 614                 BIO_printf(bio_err, "Error opening output file\n");
 615                 goto end;
 616                 }
 617
 618         if (!req && (add_nonce != 2)) add_nonce = 0;
 619
 620         if (!req && reqin)
 621                 {
 622                 derbio = BIO_new_file(reqin, "rb");
 623                 if (!derbio)
 624                         {
 625                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 626                         goto end;
 627                         }
 628                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 629                 BIO_free(derbio);
 630                 if(!req)
 631                         {
 632                         BIO_printf(bio_err, "Error reading OCSP request\n");
 633                         goto end;
 634                         }
 635                 }
 636
 637         if (!req && port)
 638                 {
 639                 acbio = init_responder(port);
 640                 if (!acbio)
 641                         goto end;
 642                 }
 643
 644         if (rsignfile && !rdb)
 645                 {
 646                 if (!rkeyfile) rkeyfile = rsignfile;
 647                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 648                         NULL, e, "responder certificate");
 649                 if (!rsigner)
 650                         {
 651                         BIO_printf(bio_err, "Error loading responder certificate\n");
 652                         goto end;
 653                         }
 654                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 655                         NULL, e, "CA certificate");
 656                 if (rcertfile)
 657                         {
 658                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 659                                 NULL, e, "responder other certificates");
 660                         if (!rother) goto end;
 661                         }
 662                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 663                         "responder private key");
 664                 if (!rkey)
 665                         goto end;
 666                 }
 667         if(acbio)
 668                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 669
 670         redo_accept:
 671
 672         if (acbio)
 673                 {
 674                 if (!do_responder(&req, &cbio, acbio, port))
 675                         goto end;
 676                 if (!req)
 677                         {
 678                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 679                         send_ocsp_response(cbio, resp);
 680                         goto done_resp;
 681                         }
 682                 }
 683
 684         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 685                 {
 686                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 687                 goto end;
 688                 }
 689
 690         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 691
 692         if (signfile)
 693                 {
 694                 if (!keyfile) keyfile = signfile;
 695                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 696                         NULL, e, "signer certificate");
 697                 if (!signer)
 698                         {
 699                         BIO_printf(bio_err, "Error loading signer certificate\n");
 700                         goto end;
 701                         }
 702                 if (sign_certfile)
 703                         {
 704                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 705                                 NULL, e, "signer certificates");
 706                         if (!sign_other) goto end;
 707                         }
 708                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 709                         "signer private key");
 710                 if (!key)
 711                         goto end;
 712
 713                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 714                         {
 715                         BIO_printf(bio_err, "Error signing OCSP request\n");
 716                         goto end;
 717                         }
 718                 }
 719
 720         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 721
 722         if (reqout)
 723                 {
 724                 derbio = BIO_new_file(reqout, "wb");
 725                 if(!derbio)
 726                         {
 727                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 728                         goto end;
 729                         }
 730                 i2d_OCSP_REQUEST_bio(derbio, req);
 731                 BIO_free(derbio);
 732                 }
 733
 734         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 735                 {
 736                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 737                 goto end;
 738                 }
 739
 740         if (ridx_filename && !rdb)
 741                 {
 742                 rdb = load_index(ridx_filename, NULL);
 743                 if (!rdb) goto end;
 744                 if (!index_index(rdb)) goto end;
 745                 }
 746
 747         if (rdb)
 748                 {
 749                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 750                 if (cbio)
 751                         send_ocsp_response(cbio, resp);
 752                 }
 753         else if (host)
 754                 {
 755 #ifndef OPENSSL_NO_SOCK
 756                 resp = process_responder(bio_err, req, host, path,
 757                                                 port, use_ssl, req_timeout);
 758                 if (!resp)
 759                         goto end;
 760 #else
 761                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 762                 goto end;
 763 #endif
 764                 }
 765         else if (respin)
 766                 {
 767                 derbio = BIO_new_file(respin, "rb");
 768                 if (!derbio)
 769                         {
 770                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 771                         goto end;
 772                         }
 773                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 774                 BIO_free(derbio);
 775                 if(!resp)
 776                         {
 777                         BIO_printf(bio_err, "Error reading OCSP response\n");
 778                         goto end;
 779                         }
 780
 781                 }
 782         else
 783                 {
 784                 ret = 0;
 785                 goto end;
 786                 }
 787
 788         done_resp:
 789
 790         if (respout)
 791                 {
 792                 derbio = BIO_new_file(respout, "wb");
 793                 if(!derbio)
 794                         {
 795                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 796                         goto end;
 797                         }
 798                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 799                 BIO_free(derbio);
 800                 }
 801
 802         i = OCSP_response_status(resp);
 803
 804         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 805                 {
 806                 BIO_printf(out, "Responder Error: %s (%d)\n",
 807                                 OCSP_response_status_str(i), i);
 808                 if (ignore_err)
 809                         goto redo_accept;
 810                 ret = 0;
 811                 goto end;
 812                 }
 813
 814         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 815
 816         /* If running as responder don't verify our own response */
 817         if (cbio)
 818                 {
 819                 if (accept_count > 0)
 820                         accept_count--;
 821                 /* Redo if more connections needed */
 822                 if (accept_count)
 823                         {
 824                         BIO_free_all(cbio);
 825                         cbio = NULL;
 826                         OCSP_REQUEST_free(req);
 827                         req = NULL;
 828                         OCSP_RESPONSE_free(resp);
 829                         resp = NULL;
 830                         goto redo_accept;
 831                         }
 832                 goto end;
 833                 }
 834
 835         if (!store)
 836                 store = setup_verify(bio_err, CAfile, CApath);
 837         if (!store)
 838                 goto end;
 839         if (verify_certfile)
 840                 {
 841                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 842                         NULL, e, "validator certificate");
 843                 if (!verify_other) goto end;
 844                 }
 845
 846         bs = OCSP_response_get1_basic(resp);
 847
 848         if (!bs)
 849                 {
 850                 BIO_printf(bio_err, "Error parsing response\n");
 851                 goto end;
 852                 }
 853
 854         if (!noverify)
 855                 {
 856                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 857                         {
 858                         if (i == -1)
 859                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 860                         else
 861                                 {
 862                                 BIO_printf(bio_err, "Nonce Verify error\n");
 863                                 goto end;
 864                                 }
 865                         }
 866
 867                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 868                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 869
 870                 if(i <= 0)
 871                         {
 872                         BIO_printf(bio_err, "Response Verify Failure\n");
 873                         ERR_print_errors(bio_err);
 874                         }
 875                 else
 876                         BIO_printf(bio_err, "Response verify OK\n");
 877
 878                 }
 879
 880         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 881                 goto end;
 882
 883         ret = 0;
 884
 885 end:
 886         ERR_print_errors(bio_err);
 887         X509_free(signer);
 888         X509_STORE_free(store);
 889         EVP_PKEY_free(key);
 890         EVP_PKEY_free(rkey);
 891         X509_free(issuer);
 892         X509_free(cert);
 893         X509_free(rsigner);
 894         X509_free(rca_cert);
 895         free_index(rdb);
 896         BIO_free_all(cbio);
 897         BIO_free_all(acbio);
 898         BIO_free(out);
 899         OCSP_REQUEST_free(req);
 900         OCSP_RESPONSE_free(resp);
 901         OCSP_BASICRESP_free(bs);
 902         sk_STRING_free(reqnames);
 903         sk_OCSP_CERTID_free(ids);
 904         sk_X509_pop_free(sign_other, X509_free);
 905         sk_X509_pop_free(verify_other, X509_free);
 906
 907         if (use_ssl != -1)
 908                 {
 909                 OPENSSL_free(host);
 910                 OPENSSL_free(port);
 911                 OPENSSL_free(path);
 912                 }
 913
 914         OPENSSL_EXIT(ret);
 915 }
 916
 917 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 918                                 STACK_OF(OCSP_CERTID) *ids)
 919         {
 920         OCSP_CERTID *id;
 921         if(!issuer)
 922                 {
 923                 BIO_printf(bio_err, "No issuer certificate specified\n");
 924                 return 0;
 925                 }
 926         if(!*req) *req = OCSP_REQUEST_new();
 927         if(!*req) goto err;
 928         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 929         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 930         if(!OCSP_request_add0_id(*req, id)) goto err;
 931         return 1;
 932
 933         err:
 934         BIO_printf(bio_err, "Error Creating OCSP request\n");
 935         return 0;
 936         }
 937
 938 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 939                                 STACK_OF(OCSP_CERTID) *ids)
 940         {
 941         OCSP_CERTID *id;
 942         X509_NAME *iname;
 943         ASN1_BIT_STRING *ikey;
 944         ASN1_INTEGER *sno;
 945         if(!issuer)
 946                 {
 947                 BIO_printf(bio_err, "No issuer certificate specified\n");
 948                 return 0;
 949                 }
 950         if(!*req) *req = OCSP_REQUEST_new();
 951         if(!*req) goto err;
 952         iname = X509_get_subject_name(issuer);
 953         ikey = X509_get0_pubkey_bitstr(issuer);
 954         sno = s2i_ASN1_INTEGER(NULL, serial);
 955         if(!sno)
 956                 {
 957                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 958                 return 0;
 959                 }
 960         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 961         ASN1_INTEGER_free(sno);
 962         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 963         if(!OCSP_request_add0_id(*req, id)) goto err;
 964         return 1;
 965
 966         err:
 967         BIO_printf(bio_err, "Error Creating OCSP request\n");
 968         return 0;
 969         }
 970
 971 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 972                               STACK_OF(STRING) *names,
 973                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 974                               long maxage)
 975         {
 976         OCSP_CERTID *id;
 977         char *name;
 978         int i;
 979
 980         int status, reason;
 981
 982         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 983
 984         if (!bs || !req || !sk_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
 985                 return 1;
 986
 987         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 988                 {
 989                 id = sk_OCSP_CERTID_value(ids, i);
 990                 name = sk_STRING_value(names, i);
 991                 BIO_printf(out, "%s: ", name);
 992
 993                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 994                                         &rev, &thisupd, &nextupd))
 995                         {
 996                         BIO_puts(out, "ERROR: No Status found.\n");
 997                         continue;
 998                         }
 999
1000                 /* Check validity: if invalid write to output BIO so we
1001                  * know which response this refers to.
1002                  */
1003                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1004                         {
1005                         BIO_puts(out, "WARNING: Status times invalid.\n");
1006                         ERR_print_errors(out);
1007                         }
1008                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1009
1010                 BIO_puts(out, "\tThis Update: ");
1011                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1012                 BIO_puts(out, "\n");
1013
1014                 if(nextupd)
1015                         {
1016                         BIO_puts(out, "\tNext Update: ");
1017                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1018                         BIO_puts(out, "\n");
1019                         }
1020
1021                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1022                         continue;
1023
1024                 if (reason != -1)
1025                         BIO_printf(out, "\tReason: %s\n",
1026                                 OCSP_crl_reason_str(reason));
1027
1028                 BIO_puts(out, "\tRevocation Time: ");
1029                 ASN1_GENERALIZEDTIME_print(out, rev);
1030                 BIO_puts(out, "\n");
1031                 }
1032
1033         return 1;
1034         }
1035
1036
1037 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1038                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1039                         STACK_OF(X509) *rother, unsigned long flags,
1040                         int nmin, int ndays)
1041         {
1042         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1043         OCSP_CERTID *cid, *ca_id = NULL;
1044         OCSP_BASICRESP *bs = NULL;
1045         int i, id_count, ret = 1;
1046
1047         id_count = OCSP_request_onereq_count(req);
1048
1049         if (id_count <= 0)
1050                 {
1051                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1052                 goto end;
1053                 }
1054
1055
1056         bs = OCSP_BASICRESP_new();
1057         thisupd = X509_gmtime_adj(NULL, 0);
1058         if (ndays != -1)
1059                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1060
1061         /* Examine each certificate id in the request */
1062         for (i = 0; i < id_count; i++)
1063                 {
1064                 OCSP_ONEREQ *one;
1065                 ASN1_INTEGER *serial;
1066                 char **inf;
1067                 ASN1_OBJECT *cert_id_md_oid;
1068                 const EVP_MD *cert_id_md;
1069                 one = OCSP_request_onereq_get0(req, i);
1070                 cid = OCSP_onereq_get0_id(one);
1071
1072                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1073
1074                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1075                 if (! cert_id_md)
1076                         {
1077                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1078                                 NULL);
1079                                 goto end;
1080                         }
1081                 if (ca_id) OCSP_CERTID_free(ca_id);
1082                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1083
1084                 /* Is this request about our CA? */
1085                 if (OCSP_id_issuer_cmp(ca_id, cid))
1086                         {
1087                         OCSP_basic_add1_status(bs, cid,
1088                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1089                                                 0, NULL,
1090                                                 thisupd, nextupd);
1091                         continue;
1092                         }
1093                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1094                 inf = lookup_serial(db, serial);
1095                 if (!inf)
1096                         OCSP_basic_add1_status(bs, cid,
1097                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1098                                                 0, NULL,
1099                                                 thisupd, nextupd);
1100                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1101                         OCSP_basic_add1_status(bs, cid,
1102                                                 V_OCSP_CERTSTATUS_GOOD,
1103                                                 0, NULL,
1104                                                 thisupd, nextupd);
1105                 else if (inf[DB_type][0] == DB_TYPE_REV)
1106                         {
1107                         ASN1_OBJECT *inst = NULL;
1108                         ASN1_TIME *revtm = NULL;
1109                         ASN1_GENERALIZEDTIME *invtm = NULL;
1110                         OCSP_SINGLERESP *single;
1111                         int reason = -1;
1112                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1113                         single = OCSP_basic_add1_status(bs, cid,
1114                                                 V_OCSP_CERTSTATUS_REVOKED,
1115                                                 reason, revtm,
1116                                                 thisupd, nextupd);
1117                         if (invtm)
1118                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1119                         else if (inst)
1120                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1121                         ASN1_OBJECT_free(inst);
1122                         ASN1_TIME_free(revtm);
1123                         ASN1_GENERALIZEDTIME_free(invtm);
1124                         }
1125                 }
1126
1127         OCSP_copy_nonce(bs, req);
1128
1129         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1130
1131         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1132
1133         end:
1134         ASN1_TIME_free(thisupd);
1135         ASN1_TIME_free(nextupd);
1136         OCSP_CERTID_free(ca_id);
1137         OCSP_BASICRESP_free(bs);
1138         return ret;
1139
1140         }
1141
1142 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1143         {
1144         int i;
1145         BIGNUM *bn = NULL;
1146         char *itmp, *row[DB_NUMBER],**rrow;
1147         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1148         bn = ASN1_INTEGER_to_BN(ser,NULL);
1149         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1150         if (BN_is_zero(bn))
1151                 itmp = BUF_strdup("00");
1152         else
1153                 itmp = BN_bn2hex(bn);
1154         row[DB_serial] = itmp;
1155         BN_free(bn);
1156         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1157         OPENSSL_free(itmp);
1158         return rrow;
1159         }
1160
1161 /* Quick and dirty OCSP server: read in and parse input request */
1162
1163 static BIO *init_responder(char *port)
1164         {
1165         BIO *acbio = NULL, *bufbio = NULL;
1166         bufbio = BIO_new(BIO_f_buffer());
1167         if (!bufbio)
1168                 goto err;
1169 #ifndef OPENSSL_NO_SOCK
1170         acbio = BIO_new_accept(port);
1171 #else
1172         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1173 #endif
1174         if (!acbio)
1175                 goto err;
1176         BIO_set_accept_bios(acbio, bufbio);
1177         bufbio = NULL;
1178
1179         if (BIO_do_accept(acbio) <= 0)
1180                 {
1181                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1182                         ERR_print_errors(bio_err);
1183                         goto err;
1184                 }
1185
1186         return acbio;
1187
1188         err:
1189         BIO_free_all(acbio);
1190         BIO_free(bufbio);
1191         return NULL;
1192         }
1193
1194 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1195         {
1196         int have_post = 0, len;
1197         OCSP_REQUEST *req = NULL;
1198         char inbuf[1024];
1199         BIO *cbio = NULL;
1200
1201         if (BIO_do_accept(acbio) <= 0)
1202                 {
1203                         BIO_printf(bio_err, "Error accepting connection\n");
1204                         ERR_print_errors(bio_err);
1205                         return 0;
1206                 }
1207
1208         cbio = BIO_pop(acbio);
1209         *pcbio = cbio;
1210
1211         for(;;)
1212                 {
1213                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1214                 if (len <= 0)
1215                         return 1;
1216                 /* Look for "POST" signalling start of query */
1217                 if (!have_post)
1218                         {
1219                         if(strncmp(inbuf, "POST", 4))
1220                                 {
1221                                 BIO_printf(bio_err, "Invalid request\n");
1222                                 return 1;
1223                                 }
1224                         have_post = 1;
1225                         }
1226                 /* Look for end of headers */
1227                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1228                         break;
1229                 }
1230
1231         /* Try to read OCSP request */
1232
1233         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1234
1235         if (!req)
1236                 {
1237                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1238                 ERR_print_errors(bio_err);
1239                 }
1240
1241         *preq = req;
1242
1243         return 1;
1244
1245         }
1246
1247 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1248         {
1249         char http_resp[] =
1250                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1251                 "Content-Length: %d\r\n\r\n";
1252         if (!cbio)
1253                 return 0;
1254         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1255         i2d_OCSP_RESPONSE_bio(cbio, resp);
1256         (void)BIO_flush(cbio);
1257         return 1;
1258         }
1259
1260 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1261                                 OCSP_REQUEST *req, int req_timeout)
1262         {
1263         int fd;
1264         int rv;
1265         OCSP_REQ_CTX *ctx = NULL;
1266         OCSP_RESPONSE *rsp = NULL;
1267         fd_set confds;
1268         struct timeval tv;
1269
1270         if (req_timeout != -1)
1271                 BIO_set_nbio(cbio, 1);
1272
1273         rv = BIO_do_connect(cbio);
1274
1275         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1276                 {
1277                 BIO_puts(err, "Error connecting BIO\n");
1278                 return NULL;
1279                 }
1280
1281         if (req_timeout == -1)
1282                 return OCSP_sendreq_bio(cbio, path, req);
1283
1284         if (BIO_get_fd(cbio, &fd) <= 0)
1285                 {
1286                 BIO_puts(err, "Can't get connection fd\n");
1287                 goto err;
1288                 }
1289
1290         if (rv <= 0)
1291                 {
1292                 FD_ZERO(&confds);
1293                 openssl_fdset(fd, &confds);
1294                 tv.tv_usec = 0;
1295                 tv.tv_sec = req_timeout;
1296                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1297                 if (rv == 0)
1298                         {
1299                         BIO_puts(err, "Timeout on connect\n");
1300                         return NULL;
1301                         }
1302                 }
1303
1304
1305         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1306         if (!ctx)
1307                 return NULL;
1308
1309         for (;;)
1310                 {
1311                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1312                 if (rv != -1)
1313                         break;
1314                 FD_ZERO(&confds);
1315                 openssl_fdset(fd, &confds);
1316                 tv.tv_usec = 0;
1317                 tv.tv_sec = req_timeout;
1318                 if (BIO_should_read(cbio))
1319                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1320                 else if (BIO_should_write(cbio))
1321                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1322                 else
1323                         {
1324                         BIO_puts(err, "Unexpected retry condition\n");
1325                         goto err;
1326                         }
1327                 if (rv == 0)
1328                         {
1329                         BIO_puts(err, "Timeout on request\n");
1330                         break;
1331                         }
1332                 if (rv == -1)
1333                         {
1334                         BIO_puts(err, "Select error\n");
1335                         break;
1336                         }
1337
1338                 }
1339         err:
1340         if (ctx)
1341                 OCSP_REQ_CTX_free(ctx);
1342
1343         return rsp;
1344         }
1345
1346 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1347                         char *host, char *path, char *port, int use_ssl,
1348                         int req_timeout)
1349         {
1350         BIO *cbio = NULL;
1351         SSL_CTX *ctx = NULL;
1352         OCSP_RESPONSE *resp = NULL;
1353         cbio = BIO_new_connect(host);
1354         if (!cbio)
1355                 {
1356                 BIO_printf(err, "Error creating connect BIO\n");
1357                 goto end;
1358                 }
1359         if (port) BIO_set_conn_port(cbio, port);
1360         if (use_ssl == 1)
1361                 {
1362                 BIO *sbio;
1363 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1364                 ctx = SSL_CTX_new(SSLv23_client_method());
1365 #elif !defined(OPENSSL_NO_SSL3)
1366                 ctx = SSL_CTX_new(SSLv3_client_method());
1367 #elif !defined(OPENSSL_NO_SSL2)
1368                 ctx = SSL_CTX_new(SSLv2_client_method());
1369 #else
1370                 BIO_printf(err, "SSL is disabled\n");
1371                         goto end;
1372 #endif
1373                 if (ctx == NULL)
1374                         {
1375                         BIO_printf(err, "Error creating SSL context.\n");
1376                         goto end;
1377                         }
1378                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1379                 sbio = BIO_new_ssl(ctx, 1);
1380                 cbio = BIO_push(sbio, cbio);
1381                 }
1382         resp = query_responder(err, cbio, path, req, req_timeout);
1383         if (!resp)
1384                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1385         end:
1386         if (ctx)
1387                 SSL_CTX_free(ctx);
1388         if (cbio)
1389                 BIO_free_all(cbio);
1390         return resp;
1391         }
1392
1393 #endif