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 #define USE_SOCKETS
  66
  67 #include <stdio.h>
  68 #include <stdlib.h>
  69 #include <string.h>
  70 #include <time.h>
  71 #include "apps.h" /* needs to be included before the openssl headers! */
  72 #include <openssl/e_os2.h>
  73 #include <openssl/crypto.h>
  74 #include <openssl/err.h>
  75 #include <openssl/ssl.h>
  76 #include <openssl/evp.h>
  77 #include <openssl/bn.h>
  78 #include <openssl/x509v3.h>
  79
  80 #if defined(NETWARE_CLIB)
  81 #  ifdef NETWARE_BSDSOCK
  82 #    include <sys/socket.h>
  83 #    include <sys/bsdskt.h>
  84 #  else
  85 #    include <novsock2.h>
  86 #  endif
  87 #elif defined(NETWARE_LIBC)
  88 #  ifdef NETWARE_BSDSOCK
  89 #    include <sys/select.h>
  90 #  else
  91 #    include <novsock2.h>
  92 #  endif
  93 #endif
  94
  95 /* Maximum leeway in validity period: default 5 minutes */
  96 #define MAX_VALIDITY_PERIOD     (5 * 60)
  97
  98 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  99                                 STACK_OF(OCSP_CERTID) *ids);
 100 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
 101                                 STACK_OF(OCSP_CERTID) *ids);
 102 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 103                               STACK_OF(OPENSSL_STRING) *names,
 104                               STACK_OF(OCSP_CERTID) *ids, long nsec,
 105                               long maxage);
 106
 107 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
 108                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
 109                         STACK_OF(X509) *rother, unsigned long flags,
 110                         int nmin, int ndays);
 111
 112 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
 113 static BIO *init_responder(char *port);
 114 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
 115 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
 116 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
 117                                 STACK_OF(CONF_VALUE) *headers,
 118                                 OCSP_REQUEST *req, int req_timeout);
 119
 120 #undef PROG
 121 #define PROG ocsp_main
 122
 123 int MAIN(int, char **);
 124
 125 int MAIN(int argc, char **argv)
 126         {
 127         ENGINE *e = NULL;
 128         char **args;
 129         char *host = NULL, *port = NULL, *path = "/";
 130         char *thost = NULL, *tport = NULL, *tpath = NULL;
 131         char *reqin = NULL, *respin = NULL;
 132         char *reqout = NULL, *respout = NULL;
 133         char *signfile = NULL, *keyfile = NULL;
 134         char *rsignfile = NULL, *rkeyfile = NULL;
 135         char *outfile = NULL;
 136         int add_nonce = 1, noverify = 0, use_ssl = -1;
 137         STACK_OF(CONF_VALUE) *headers = NULL;
 138         OCSP_REQUEST *req = NULL;
 139         OCSP_RESPONSE *resp = NULL;
 140         OCSP_BASICRESP *bs = NULL;
 141         X509 *issuer = NULL, *cert = NULL;
 142         X509 *signer = NULL, *rsigner = NULL;
 143         EVP_PKEY *key = NULL, *rkey = NULL;
 144         BIO *acbio = NULL, *cbio = NULL;
 145         BIO *derbio = NULL;
 146         BIO *out = NULL;
 147         int req_timeout = -1;
 148         int req_text = 0, resp_text = 0;
 149         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 150         char *CAfile = NULL, *CApath = NULL;
 151         X509_STORE *store = NULL;
 152         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 153         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 154         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 155         int ret = 1;
 156         int accept_count = -1;
 157         int badarg = 0;
 158         int i;
 159         int ignore_err = 0;
 160         STACK_OF(OPENSSL_STRING) *reqnames = NULL;
 161         STACK_OF(OCSP_CERTID) *ids = NULL;
 162
 163         X509 *rca_cert = NULL;
 164         char *ridx_filename = NULL;
 165         char *rca_filename = NULL;
 166         CA_DB *rdb = NULL;
 167         int nmin = 0, ndays = -1;
 168         const EVP_MD *cert_id_md = NULL;
 169
 170         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 171
 172         if (!load_config(bio_err, NULL))
 173                 goto end;
 174         SSL_load_error_strings();
 175         OpenSSL_add_ssl_algorithms();
 176         args = argv + 1;
 177         reqnames = sk_OPENSSL_STRING_new_null();
 178         ids = sk_OCSP_CERTID_new_null();
 179         while (!badarg && *args && *args[0] == '-')
 180                 {
 181                 if (!strcmp(*args, "-out"))
 182                         {
 183                         if (args[1])
 184                                 {
 185                                 args++;
 186                                 outfile = *args;
 187                                 }
 188                         else badarg = 1;
 189                         }
 190                 else if (!strcmp(*args, "-timeout"))
 191                         {
 192                         if (args[1])
 193                                 {
 194                                 args++;
 195                                 req_timeout = atol(*args);
 196                                 if (req_timeout < 0)
 197                                         {
 198                                         BIO_printf(bio_err,
 199                                                 "Illegal timeout value %s\n",
 200                                                 *args);
 201                                         badarg = 1;
 202                                         }
 203                                 }
 204                         else badarg = 1;
 205                         }
 206                 else if (!strcmp(*args, "-url"))
 207                         {
 208                         if (thost)
 209                                 OPENSSL_free(thost);
 210                         if (tport)
 211                                 OPENSSL_free(tport);
 212                         if (tpath)
 213                                 OPENSSL_free(tpath);
 214                         if (args[1])
 215                                 {
 216                                 args++;
 217                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 218                                         {
 219                                         BIO_printf(bio_err, "Error parsing URL\n");
 220                                         badarg = 1;
 221                                         }
 222                                 thost = host;
 223                                 tport = port;
 224                                 tpath = path;
 225                                 }
 226                         else badarg = 1;
 227                         }
 228                 else if (!strcmp(*args, "-host"))
 229                         {
 230                         if (args[1])
 231                                 {
 232                                 args++;
 233                                 host = *args;
 234                                 }
 235                         else badarg = 1;
 236                         }
 237                 else if (!strcmp(*args, "-port"))
 238                         {
 239                         if (args[1])
 240                                 {
 241                                 args++;
 242                                 port = *args;
 243                                 }
 244                         else badarg = 1;
 245                         }
 246                 else if (!strcmp(*args, "-header"))
 247                         {
 248                         if (args[1] && args[2])
 249                                 {
 250                                 if (!X509V3_add_value(args[1], args[2], &headers))
 251                                         goto end;
 252                                 args += 2;
 253                                 }
 254                         else badarg = 1;
 255                         }
 256                 else if (!strcmp(*args, "-ignore_err"))
 257                         ignore_err = 1;
 258                 else if (!strcmp(*args, "-noverify"))
 259                         noverify = 1;
 260                 else if (!strcmp(*args, "-nonce"))
 261                         add_nonce = 2;
 262                 else if (!strcmp(*args, "-no_nonce"))
 263                         add_nonce = 0;
 264                 else if (!strcmp(*args, "-resp_no_certs"))
 265                         rflags |= OCSP_NOCERTS;
 266                 else if (!strcmp(*args, "-resp_key_id"))
 267                         rflags |= OCSP_RESPID_KEY;
 268                 else if (!strcmp(*args, "-no_certs"))
 269                         sign_flags |= OCSP_NOCERTS;
 270                 else if (!strcmp(*args, "-no_signature_verify"))
 271                         verify_flags |= OCSP_NOSIGS;
 272                 else if (!strcmp(*args, "-no_cert_verify"))
 273                         verify_flags |= OCSP_NOVERIFY;
 274                 else if (!strcmp(*args, "-no_chain"))
 275                         verify_flags |= OCSP_NOCHAIN;
 276                 else if (!strcmp(*args, "-no_cert_checks"))
 277                         verify_flags |= OCSP_NOCHECKS;
 278                 else if (!strcmp(*args, "-no_explicit"))
 279                         verify_flags |= OCSP_NOEXPLICIT;
 280                 else if (!strcmp(*args, "-trust_other"))
 281                         verify_flags |= OCSP_TRUSTOTHER;
 282                 else if (!strcmp(*args, "-no_intern"))
 283                         verify_flags |= OCSP_NOINTERN;
 284                 else if (!strcmp(*args, "-text"))
 285                         {
 286                         req_text = 1;
 287                         resp_text = 1;
 288                         }
 289                 else if (!strcmp(*args, "-req_text"))
 290                         req_text = 1;
 291                 else if (!strcmp(*args, "-resp_text"))
 292                         resp_text = 1;
 293                 else if (!strcmp(*args, "-reqin"))
 294                         {
 295                         if (args[1])
 296                                 {
 297                                 args++;
 298                                 reqin = *args;
 299                                 }
 300                         else badarg = 1;
 301                         }
 302                 else if (!strcmp(*args, "-respin"))
 303                         {
 304                         if (args[1])
 305                                 {
 306                                 args++;
 307                                 respin = *args;
 308                                 }
 309                         else badarg = 1;
 310                         }
 311                 else if (!strcmp(*args, "-signer"))
 312                         {
 313                         if (args[1])
 314                                 {
 315                                 args++;
 316                                 signfile = *args;
 317                                 }
 318                         else badarg = 1;
 319                         }
 320                 else if (!strcmp (*args, "-VAfile"))
 321                         {
 322                         if (args[1])
 323                                 {
 324                                 args++;
 325                                 verify_certfile = *args;
 326                                 verify_flags |= OCSP_TRUSTOTHER;
 327                                 }
 328                         else badarg = 1;
 329                         }
 330                 else if (!strcmp(*args, "-sign_other"))
 331                         {
 332                         if (args[1])
 333                                 {
 334                                 args++;
 335                                 sign_certfile = *args;
 336                                 }
 337                         else badarg = 1;
 338                         }
 339                 else if (!strcmp(*args, "-verify_other"))
 340                         {
 341                         if (args[1])
 342                                 {
 343                                 args++;
 344                                 verify_certfile = *args;
 345                                 }
 346                         else badarg = 1;
 347                         }
 348                 else if (!strcmp (*args, "-CAfile"))
 349                         {
 350                         if (args[1])
 351                                 {
 352                                 args++;
 353                                 CAfile = *args;
 354                                 }
 355                         else badarg = 1;
 356                         }
 357                 else if (!strcmp (*args, "-CApath"))
 358                         {
 359                         if (args[1])
 360                                 {
 361                                 args++;
 362                                 CApath = *args;
 363                                 }
 364                         else badarg = 1;
 365                         }
 366                 else if (!strcmp (*args, "-validity_period"))
 367                         {
 368                         if (args[1])
 369                                 {
 370                                 args++;
 371                                 nsec = atol(*args);
 372                                 if (nsec < 0)
 373                                         {
 374                                         BIO_printf(bio_err,
 375                                                 "Illegal validity period %s\n",
 376                                                 *args);
 377                                         badarg = 1;
 378                                         }
 379                                 }
 380                         else badarg = 1;
 381                         }
 382                 else if (!strcmp (*args, "-status_age"))
 383                         {
 384                         if (args[1])
 385                                 {
 386                                 args++;
 387                                 maxage = atol(*args);
 388                                 if (maxage < 0)
 389                                         {
 390                                         BIO_printf(bio_err,
 391                                                 "Illegal validity age %s\n",
 392                                                 *args);
 393                                         badarg = 1;
 394                                         }
 395                                 }
 396                         else badarg = 1;
 397                         }
 398                  else if (!strcmp(*args, "-signkey"))
 399                         {
 400                         if (args[1])
 401                                 {
 402                                 args++;
 403                                 keyfile = *args;
 404                                 }
 405                         else badarg = 1;
 406                         }
 407                 else if (!strcmp(*args, "-reqout"))
 408                         {
 409                         if (args[1])
 410                                 {
 411                                 args++;
 412                                 reqout = *args;
 413                                 }
 414                         else badarg = 1;
 415                         }
 416                 else if (!strcmp(*args, "-respout"))
 417                         {
 418                         if (args[1])
 419                                 {
 420                                 args++;
 421                                 respout = *args;
 422                                 }
 423                         else badarg = 1;
 424                         }
 425                  else if (!strcmp(*args, "-path"))
 426                         {
 427                         if (args[1])
 428                                 {
 429                                 args++;
 430                                 path = *args;
 431                                 }
 432                         else badarg = 1;
 433                         }
 434                 else if (!strcmp(*args, "-issuer"))
 435                         {
 436                         if (args[1])
 437                                 {
 438                                 args++;
 439                                 X509_free(issuer);
 440                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 441                                         NULL, e, "issuer certificate");
 442                                 if(!issuer) goto end;
 443                                 }
 444                         else badarg = 1;
 445                         }
 446                 else if (!strcmp (*args, "-cert"))
 447                         {
 448                         if (args[1])
 449                                 {
 450                                 args++;
 451                                 X509_free(cert);
 452                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 453                                         NULL, e, "certificate");
 454                                 if(!cert) goto end;
 455                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 456                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 457                                         goto end;
 458                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
 459                                         goto end;
 460                                 }
 461                         else badarg = 1;
 462                         }
 463                 else if (!strcmp(*args, "-serial"))
 464                         {
 465                         if (args[1])
 466                                 {
 467                                 args++;
 468                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 469                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 470                                         goto end;
 471                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
 472                                         goto end;
 473                                 }
 474                         else badarg = 1;
 475                         }
 476                 else if (!strcmp(*args, "-index"))
 477                         {
 478                         if (args[1])
 479                                 {
 480                                 args++;
 481                                 ridx_filename = *args;
 482                                 }
 483                         else badarg = 1;
 484                         }
 485                 else if (!strcmp(*args, "-CA"))
 486                         {
 487                         if (args[1])
 488                                 {
 489                                 args++;
 490                                 rca_filename = *args;
 491                                 }
 492                         else badarg = 1;
 493                         }
 494                 else if (!strcmp (*args, "-nmin"))
 495                         {
 496                         if (args[1])
 497                                 {
 498                                 args++;
 499                                 nmin = atol(*args);
 500                                 if (nmin < 0)
 501                                         {
 502                                         BIO_printf(bio_err,
 503                                                 "Illegal update period %s\n",
 504                                                 *args);
 505                                         badarg = 1;
 506                                         }
 507                                 }
 508                                 if (ndays == -1)
 509                                         ndays = 0;
 510                         else badarg = 1;
 511                         }
 512                 else if (!strcmp (*args, "-nrequest"))
 513                         {
 514                         if (args[1])
 515                                 {
 516                                 args++;
 517                                 accept_count = atol(*args);
 518                                 if (accept_count < 0)
 519                                         {
 520                                         BIO_printf(bio_err,
 521                                                 "Illegal accept count %s\n",
 522                                                 *args);
 523                                         badarg = 1;
 524                                         }
 525                                 }
 526                         else badarg = 1;
 527                         }
 528                 else if (!strcmp (*args, "-ndays"))
 529                         {
 530                         if (args[1])
 531                                 {
 532                                 args++;
 533                                 ndays = atol(*args);
 534                                 if (ndays < 0)
 535                                         {
 536                                         BIO_printf(bio_err,
 537                                                 "Illegal update period %s\n",
 538                                                 *args);
 539                                         badarg = 1;
 540                                         }
 541                                 }
 542                         else badarg = 1;
 543                         }
 544                 else if (!strcmp(*args, "-rsigner"))
 545                         {
 546                         if (args[1])
 547                                 {
 548                                 args++;
 549                                 rsignfile = *args;
 550                                 }
 551                         else badarg = 1;
 552                         }
 553                 else if (!strcmp(*args, "-rkey"))
 554                         {
 555                         if (args[1])
 556                                 {
 557                                 args++;
 558                                 rkeyfile = *args;
 559                                 }
 560                         else badarg = 1;
 561                         }
 562                 else if (!strcmp(*args, "-rother"))
 563                         {
 564                         if (args[1])
 565                                 {
 566                                 args++;
 567                                 rcertfile = *args;
 568                                 }
 569                         else badarg = 1;
 570                         }
 571                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 572                         {
 573                         badarg = 1;
 574                         }
 575                 args++;
 576                 }
 577
 578         /* Have we anything to do? */
 579         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 580
 581         if (badarg)
 582                 {
 583                 BIO_printf (bio_err, "OCSP utility\n");
 584                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 585                 BIO_printf (bio_err, "where options are\n");
 586                 BIO_printf (bio_err, "-out file          output filename\n");
 587                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 588                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 589                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 590                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 591                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 592                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 593                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 594                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 595                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 596                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 597                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 598                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 599                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 600                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 601                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 602                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 603                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 604                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 605                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 606                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 607                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 608                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 609                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 610                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 611                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 612                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 613                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 614                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 615                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 616                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 617                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 618                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 619                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 620                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 621                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 622                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 623                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 624                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 625                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 626                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 627                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 628                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 629                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 630                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request\n");
 631                 goto end;
 632                 }
 633
 634         if(outfile) out = BIO_new_file(outfile, "w");
 635         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 636
 637         if(!out)
 638                 {
 639                 BIO_printf(bio_err, "Error opening output file\n");
 640                 goto end;
 641                 }
 642
 643         if (!req && (add_nonce != 2)) add_nonce = 0;
 644
 645         if (!req && reqin)
 646                 {
 647                 derbio = BIO_new_file(reqin, "rb");
 648                 if (!derbio)
 649                         {
 650                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 651                         goto end;
 652                         }
 653                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 654                 BIO_free(derbio);
 655                 if(!req)
 656                         {
 657                         BIO_printf(bio_err, "Error reading OCSP request\n");
 658                         goto end;
 659                         }
 660                 }
 661
 662         if (!req && port)
 663                 {
 664                 acbio = init_responder(port);
 665                 if (!acbio)
 666                         goto end;
 667                 }
 668
 669         if (rsignfile && !rdb)
 670                 {
 671                 if (!rkeyfile) rkeyfile = rsignfile;
 672                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 673                         NULL, e, "responder certificate");
 674                 if (!rsigner)
 675                         {
 676                         BIO_printf(bio_err, "Error loading responder certificate\n");
 677                         goto end;
 678                         }
 679                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 680                         NULL, e, "CA certificate");
 681                 if (rcertfile)
 682                         {
 683                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 684                                 NULL, e, "responder other certificates");
 685                         if (!rother) goto end;
 686                         }
 687                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 688                         "responder private key");
 689                 if (!rkey)
 690                         goto end;
 691                 }
 692         if(acbio)
 693                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 694
 695         redo_accept:
 696
 697         if (acbio)
 698                 {
 699                 if (!do_responder(&req, &cbio, acbio, port))
 700                         goto end;
 701                 if (!req)
 702                         {
 703                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 704                         send_ocsp_response(cbio, resp);
 705                         goto done_resp;
 706                         }
 707                 }
 708
 709         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 710                 {
 711                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 712                 goto end;
 713                 }
 714
 715         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 716
 717         if (signfile)
 718                 {
 719                 if (!keyfile) keyfile = signfile;
 720                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 721                         NULL, e, "signer certificate");
 722                 if (!signer)
 723                         {
 724                         BIO_printf(bio_err, "Error loading signer certificate\n");
 725                         goto end;
 726                         }
 727                 if (sign_certfile)
 728                         {
 729                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 730                                 NULL, e, "signer certificates");
 731                         if (!sign_other) goto end;
 732                         }
 733                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 734                         "signer private key");
 735                 if (!key)
 736                         goto end;
 737
 738                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 739                         {
 740                         BIO_printf(bio_err, "Error signing OCSP request\n");
 741                         goto end;
 742                         }
 743                 }
 744
 745         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 746
 747         if (reqout)
 748                 {
 749                 derbio = BIO_new_file(reqout, "wb");
 750                 if(!derbio)
 751                         {
 752                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 753                         goto end;
 754                         }
 755                 i2d_OCSP_REQUEST_bio(derbio, req);
 756                 BIO_free(derbio);
 757                 }
 758
 759         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 760                 {
 761                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 762                 goto end;
 763                 }
 764
 765         if (ridx_filename && !rdb)
 766                 {
 767                 rdb = load_index(ridx_filename, NULL);
 768                 if (!rdb) goto end;
 769                 if (!index_index(rdb)) goto end;
 770                 }
 771
 772         if (rdb)
 773                 {
 774                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 775                 if (cbio)
 776                         send_ocsp_response(cbio, resp);
 777                 }
 778         else if (host)
 779                 {
 780 #ifndef OPENSSL_NO_SOCK
 781                 resp = process_responder(bio_err, req, host, path,
 782                                         port, use_ssl, headers, req_timeout);
 783                 if (!resp)
 784                         goto end;
 785 #else
 786                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 787                 goto end;
 788 #endif
 789                 }
 790         else if (respin)
 791                 {
 792                 derbio = BIO_new_file(respin, "rb");
 793                 if (!derbio)
 794                         {
 795                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 796                         goto end;
 797                         }
 798                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 799                 BIO_free(derbio);
 800                 if(!resp)
 801                         {
 802                         BIO_printf(bio_err, "Error reading OCSP response\n");
 803                         goto end;
 804                         }
 805
 806                 }
 807         else
 808                 {
 809                 ret = 0;
 810                 goto end;
 811                 }
 812
 813         done_resp:
 814
 815         if (respout)
 816                 {
 817                 derbio = BIO_new_file(respout, "wb");
 818                 if(!derbio)
 819                         {
 820                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 821                         goto end;
 822                         }
 823                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 824                 BIO_free(derbio);
 825                 }
 826
 827         i = OCSP_response_status(resp);
 828
 829         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 830                 {
 831                 BIO_printf(out, "Responder Error: %s (%d)\n",
 832                                 OCSP_response_status_str(i), i);
 833                 if (ignore_err)
 834                         goto redo_accept;
 835                 ret = 0;
 836                 goto end;
 837                 }
 838
 839         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 840
 841         /* If running as responder don't verify our own response */
 842         if (cbio)
 843                 {
 844                 if (accept_count > 0)
 845                         accept_count--;
 846                 /* Redo if more connections needed */
 847                 if (accept_count)
 848                         {
 849                         BIO_free_all(cbio);
 850                         cbio = NULL;
 851                         OCSP_REQUEST_free(req);
 852                         req = NULL;
 853                         OCSP_RESPONSE_free(resp);
 854                         resp = NULL;
 855                         goto redo_accept;
 856                         }
 857                 goto end;
 858                 }
 859
 860         if (!store)
 861                 store = setup_verify(bio_err, CAfile, CApath);
 862         if (!store)
 863                 goto end;
 864         if (verify_certfile)
 865                 {
 866                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 867                         NULL, e, "validator certificate");
 868                 if (!verify_other) goto end;
 869                 }
 870
 871         bs = OCSP_response_get1_basic(resp);
 872
 873         if (!bs)
 874                 {
 875                 BIO_printf(bio_err, "Error parsing response\n");
 876                 goto end;
 877                 }
 878
 879         if (!noverify)
 880                 {
 881                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 882                         {
 883                         if (i == -1)
 884                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 885                         else
 886                                 {
 887                                 BIO_printf(bio_err, "Nonce Verify error\n");
 888                                 goto end;
 889                                 }
 890                         }
 891
 892                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 893                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 894
 895                 if(i <= 0)
 896                         {
 897                         BIO_printf(bio_err, "Response Verify Failure\n");
 898                         ERR_print_errors(bio_err);
 899                         }
 900                 else
 901                         BIO_printf(bio_err, "Response verify OK\n");
 902
 903                 }
 904
 905         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 906                 goto end;
 907
 908         ret = 0;
 909
 910 end:
 911         ERR_print_errors(bio_err);
 912         X509_free(signer);
 913         X509_STORE_free(store);
 914         EVP_PKEY_free(key);
 915         EVP_PKEY_free(rkey);
 916         X509_free(issuer);
 917         X509_free(cert);
 918         X509_free(rsigner);
 919         X509_free(rca_cert);
 920         free_index(rdb);
 921         BIO_free_all(cbio);
 922         BIO_free_all(acbio);
 923         BIO_free(out);
 924         OCSP_REQUEST_free(req);
 925         OCSP_RESPONSE_free(resp);
 926         OCSP_BASICRESP_free(bs);
 927         sk_OPENSSL_STRING_free(reqnames);
 928         sk_OCSP_CERTID_free(ids);
 929         sk_X509_pop_free(sign_other, X509_free);
 930         sk_X509_pop_free(verify_other, X509_free);
 931         sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);
 932
 933         if (thost)
 934                 OPENSSL_free(thost);
 935         if (tport)
 936                 OPENSSL_free(tport);
 937         if (tpath)
 938                 OPENSSL_free(tpath);
 939
 940         OPENSSL_EXIT(ret);
 941 }
 942
 943 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 944                                 STACK_OF(OCSP_CERTID) *ids)
 945         {
 946         OCSP_CERTID *id;
 947         if(!issuer)
 948                 {
 949                 BIO_printf(bio_err, "No issuer certificate specified\n");
 950                 return 0;
 951                 }
 952         if(!*req) *req = OCSP_REQUEST_new();
 953         if(!*req) goto err;
 954         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 955         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 956         if(!OCSP_request_add0_id(*req, id)) goto err;
 957         return 1;
 958
 959         err:
 960         BIO_printf(bio_err, "Error Creating OCSP request\n");
 961         return 0;
 962         }
 963
 964 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 965                                 STACK_OF(OCSP_CERTID) *ids)
 966         {
 967         OCSP_CERTID *id;
 968         X509_NAME *iname;
 969         ASN1_BIT_STRING *ikey;
 970         ASN1_INTEGER *sno;
 971         if(!issuer)
 972                 {
 973                 BIO_printf(bio_err, "No issuer certificate specified\n");
 974                 return 0;
 975                 }
 976         if(!*req) *req = OCSP_REQUEST_new();
 977         if(!*req) goto err;
 978         iname = X509_get_subject_name(issuer);
 979         ikey = X509_get0_pubkey_bitstr(issuer);
 980         sno = s2i_ASN1_INTEGER(NULL, serial);
 981         if(!sno)
 982                 {
 983                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 984                 return 0;
 985                 }
 986         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 987         ASN1_INTEGER_free(sno);
 988         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 989         if(!OCSP_request_add0_id(*req, id)) goto err;
 990         return 1;
 991
 992         err:
 993         BIO_printf(bio_err, "Error Creating OCSP request\n");
 994         return 0;
 995         }
 996
 997 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 998                               STACK_OF(OPENSSL_STRING) *names,
 999                               STACK_OF(OCSP_CERTID) *ids, long nsec,
1000                               long maxage)
1001         {
1002         OCSP_CERTID *id;
1003         char *name;
1004         int i;
1005
1006         int status, reason;
1007
1008         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
1009
1010         if (!bs || !req || !sk_OPENSSL_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
1011                 return 1;
1012
1013         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
1014                 {
1015                 id = sk_OCSP_CERTID_value(ids, i);
1016                 name = sk_OPENSSL_STRING_value(names, i);
1017                 BIO_printf(out, "%s: ", name);
1018
1019                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
1020                                         &rev, &thisupd, &nextupd))
1021                         {
1022                         BIO_puts(out, "ERROR: No Status found.\n");
1023                         continue;
1024                         }
1025
1026                 /* Check validity: if invalid write to output BIO so we
1027                  * know which response this refers to.
1028                  */
1029                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1030                         {
1031                         BIO_puts(out, "WARNING: Status times invalid.\n");
1032                         ERR_print_errors(out);
1033                         }
1034                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1035
1036                 BIO_puts(out, "\tThis Update: ");
1037                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1038                 BIO_puts(out, "\n");
1039
1040                 if(nextupd)
1041                         {
1042                         BIO_puts(out, "\tNext Update: ");
1043                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1044                         BIO_puts(out, "\n");
1045                         }
1046
1047                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1048                         continue;
1049
1050                 if (reason != -1)
1051                         BIO_printf(out, "\tReason: %s\n",
1052                                 OCSP_crl_reason_str(reason));
1053
1054                 BIO_puts(out, "\tRevocation Time: ");
1055                 ASN1_GENERALIZEDTIME_print(out, rev);
1056                 BIO_puts(out, "\n");
1057                 }
1058
1059         return 1;
1060         }
1061
1062
1063 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1064                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1065                         STACK_OF(X509) *rother, unsigned long flags,
1066                         int nmin, int ndays)
1067         {
1068         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1069         OCSP_CERTID *cid, *ca_id = NULL;
1070         OCSP_BASICRESP *bs = NULL;
1071         int i, id_count, ret = 1;
1072
1073         id_count = OCSP_request_onereq_count(req);
1074
1075         if (id_count <= 0)
1076                 {
1077                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1078                 goto end;
1079                 }
1080
1081
1082         bs = OCSP_BASICRESP_new();
1083         thisupd = X509_gmtime_adj(NULL, 0);
1084         if (ndays != -1)
1085                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1086
1087         /* Examine each certificate id in the request */
1088         for (i = 0; i < id_count; i++)
1089                 {
1090                 OCSP_ONEREQ *one;
1091                 ASN1_INTEGER *serial;
1092                 char **inf;
1093                 ASN1_OBJECT *cert_id_md_oid;
1094                 const EVP_MD *cert_id_md;
1095                 one = OCSP_request_onereq_get0(req, i);
1096                 cid = OCSP_onereq_get0_id(one);
1097
1098                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1099
1100                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);
1101                 if (! cert_id_md)
1102                         {
1103                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1104                                 NULL);
1105                                 goto end;
1106                         }
1107                 if (ca_id) OCSP_CERTID_free(ca_id);
1108                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1109
1110                 /* Is this request about our CA? */
1111                 if (OCSP_id_issuer_cmp(ca_id, cid))
1112                         {
1113                         OCSP_basic_add1_status(bs, cid,
1114                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1115                                                 0, NULL,
1116                                                 thisupd, nextupd);
1117                         continue;
1118                         }
1119                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1120                 inf = lookup_serial(db, serial);
1121                 if (!inf)
1122                         OCSP_basic_add1_status(bs, cid,
1123                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1124                                                 0, NULL,
1125                                                 thisupd, nextupd);
1126                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1127                         OCSP_basic_add1_status(bs, cid,
1128                                                 V_OCSP_CERTSTATUS_GOOD,
1129                                                 0, NULL,
1130                                                 thisupd, nextupd);
1131                 else if (inf[DB_type][0] == DB_TYPE_REV)
1132                         {
1133                         ASN1_OBJECT *inst = NULL;
1134                         ASN1_TIME *revtm = NULL;
1135                         ASN1_GENERALIZEDTIME *invtm = NULL;
1136                         OCSP_SINGLERESP *single;
1137                         int reason = -1;
1138                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1139                         single = OCSP_basic_add1_status(bs, cid,
1140                                                 V_OCSP_CERTSTATUS_REVOKED,
1141                                                 reason, revtm,
1142                                                 thisupd, nextupd);
1143                         if (invtm)
1144                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1145                         else if (inst)
1146                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1147                         ASN1_OBJECT_free(inst);
1148                         ASN1_TIME_free(revtm);
1149                         ASN1_GENERALIZEDTIME_free(invtm);
1150                         }
1151                 }
1152
1153         OCSP_copy_nonce(bs, req);
1154
1155         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1156
1157         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1158
1159         end:
1160         ASN1_TIME_free(thisupd);
1161         ASN1_TIME_free(nextupd);
1162         OCSP_CERTID_free(ca_id);
1163         OCSP_BASICRESP_free(bs);
1164         return ret;
1165
1166         }
1167
1168 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1169         {
1170         int i;
1171         BIGNUM *bn = NULL;
1172         char *itmp, *row[DB_NUMBER],**rrow;
1173         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1174         bn = ASN1_INTEGER_to_BN(ser,NULL);
1175         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1176         if (BN_is_zero(bn))
1177                 itmp = BUF_strdup("00");
1178         else
1179                 itmp = BN_bn2hex(bn);
1180         row[DB_serial] = itmp;
1181         BN_free(bn);
1182         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1183         OPENSSL_free(itmp);
1184         return rrow;
1185         }
1186
1187 /* Quick and dirty OCSP server: read in and parse input request */
1188
1189 static BIO *init_responder(char *port)
1190         {
1191         BIO *acbio = NULL, *bufbio = NULL;
1192         bufbio = BIO_new(BIO_f_buffer());
1193         if (!bufbio)
1194                 goto err;
1195 #ifndef OPENSSL_NO_SOCK
1196         acbio = BIO_new_accept(port);
1197 #else
1198         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1199 #endif
1200         if (!acbio)
1201                 goto err;
1202         BIO_set_accept_bios(acbio, bufbio);
1203         bufbio = NULL;
1204
1205         if (BIO_do_accept(acbio) <= 0)
1206                 {
1207                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1208                         ERR_print_errors(bio_err);
1209                         goto err;
1210                 }
1211
1212         return acbio;
1213
1214         err:
1215         BIO_free_all(acbio);
1216         BIO_free(bufbio);
1217         return NULL;
1218         }
1219
1220 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1221         {
1222         int have_post = 0, len;
1223         OCSP_REQUEST *req = NULL;
1224         char inbuf[1024];
1225         BIO *cbio = NULL;
1226
1227         if (BIO_do_accept(acbio) <= 0)
1228                 {
1229                         BIO_printf(bio_err, "Error accepting connection\n");
1230                         ERR_print_errors(bio_err);
1231                         return 0;
1232                 }
1233
1234         cbio = BIO_pop(acbio);
1235         *pcbio = cbio;
1236
1237         for(;;)
1238                 {
1239                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1240                 if (len <= 0)
1241                         return 1;
1242                 /* Look for "POST" signalling start of query */
1243                 if (!have_post)
1244                         {
1245                         if(strncmp(inbuf, "POST", 4))
1246                                 {
1247                                 BIO_printf(bio_err, "Invalid request\n");
1248                                 return 1;
1249                                 }
1250                         have_post = 1;
1251                         }
1252                 /* Look for end of headers */
1253                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1254                         break;
1255                 }
1256
1257         /* Try to read OCSP request */
1258
1259         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1260
1261         if (!req)
1262                 {
1263                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1264                 ERR_print_errors(bio_err);
1265                 }
1266
1267         *preq = req;
1268
1269         return 1;
1270
1271         }
1272
1273 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1274         {
1275         char http_resp[] =
1276                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1277                 "Content-Length: %d\r\n\r\n";
1278         if (!cbio)
1279                 return 0;
1280         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1281         i2d_OCSP_RESPONSE_bio(cbio, resp);
1282         (void)BIO_flush(cbio);
1283         return 1;
1284         }
1285
1286 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1287                                 STACK_OF(CONF_VALUE) *headers,
1288                                 OCSP_REQUEST *req, int req_timeout)
1289         {
1290         int fd;
1291         int rv;
1292         int i;
1293         OCSP_REQ_CTX *ctx = NULL;
1294         OCSP_RESPONSE *rsp = NULL;
1295         fd_set confds;
1296         struct timeval tv;
1297
1298         if (req_timeout != -1)
1299                 BIO_set_nbio(cbio, 1);
1300
1301         rv = BIO_do_connect(cbio);
1302
1303         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1304                 {
1305                 BIO_puts(err, "Error connecting BIO\n");
1306                 return NULL;
1307                 }
1308
1309         if (BIO_get_fd(cbio, &fd) <= 0)
1310                 {
1311                 BIO_puts(err, "Can't get connection fd\n");
1312                 goto err;
1313                 }
1314
1315         if (req_timeout != -1 && rv <= 0)
1316                 {
1317                 FD_ZERO(&confds);
1318                 openssl_fdset(fd, &confds);
1319                 tv.tv_usec = 0;
1320                 tv.tv_sec = req_timeout;
1321                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1322                 if (rv == 0)
1323                         {
1324                         BIO_puts(err, "Timeout on connect\n");
1325                         return NULL;
1326                         }
1327                 }
1328
1329
1330         ctx = OCSP_sendreq_new(cbio, path, NULL, -1);
1331         if (!ctx)
1332                 return NULL;
1333
1334         for (i = 0; i < sk_CONF_VALUE_num(headers); i++)
1335                 {
1336                 CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i);
1337                 if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value))
1338                         goto err;
1339                 }
1340
1341         if (!OCSP_REQ_CTX_set1_req(ctx, req))
1342                 goto err;
1343
1344         for (;;)
1345                 {
1346                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1347                 if (rv != -1)
1348                         break;
1349                 if (req_timeout == -1)
1350                         continue;
1351                 FD_ZERO(&confds);
1352                 openssl_fdset(fd, &confds);
1353                 tv.tv_usec = 0;
1354                 tv.tv_sec = req_timeout;
1355                 if (BIO_should_read(cbio))
1356                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1357                 else if (BIO_should_write(cbio))
1358                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1359                 else
1360                         {
1361                         BIO_puts(err, "Unexpected retry condition\n");
1362                         goto err;
1363                         }
1364                 if (rv == 0)
1365                         {
1366                         BIO_puts(err, "Timeout on request\n");
1367                         break;
1368                         }
1369                 if (rv == -1)
1370                         {
1371                         BIO_puts(err, "Select error\n");
1372                         break;
1373                         }
1374
1375                 }
1376         err:
1377         if (ctx)
1378                 OCSP_REQ_CTX_free(ctx);
1379
1380         return rsp;
1381         }
1382
1383 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1384                         char *host, char *path, char *port, int use_ssl,
1385                         STACK_OF(CONF_VALUE) *headers,
1386                         int req_timeout)
1387         {
1388         BIO *cbio = NULL;
1389         SSL_CTX *ctx = NULL;
1390         OCSP_RESPONSE *resp = NULL;
1391         cbio = BIO_new_connect(host);
1392         if (!cbio)
1393                 {
1394                 BIO_printf(err, "Error creating connect BIO\n");
1395                 goto end;
1396                 }
1397         if (port) BIO_set_conn_port(cbio, port);
1398         if (use_ssl == 1)
1399                 {
1400                 BIO *sbio;
1401 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1402                 ctx = SSL_CTX_new(SSLv23_client_method());
1403 #elif !defined(OPENSSL_NO_SSL3)
1404                 ctx = SSL_CTX_new(SSLv3_client_method());
1405 #elif !defined(OPENSSL_NO_SSL2)
1406                 ctx = SSL_CTX_new(SSLv2_client_method());
1407 #else
1408                 BIO_printf(err, "SSL is disabled\n");
1409                         goto end;
1410 #endif
1411                 if (ctx == NULL)
1412                         {
1413                         BIO_printf(err, "Error creating SSL context.\n");
1414                         goto end;
1415                         }
1416                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1417                 sbio = BIO_new_ssl(ctx, 1);
1418                 cbio = BIO_push(sbio, cbio);
1419                 }
1420         resp = query_responder(err, cbio, path, headers, req, req_timeout);
1421         if (!resp)
1422                 BIO_printf(bio_err, "Error querying OCSP responder\n");
1423         end:
1424         if (cbio)
1425                 BIO_free_all(cbio);
1426         if (ctx)
1427                 SSL_CTX_free(ctx);
1428         return resp;
1429         }
1430
1431 #endif