Move the SCT List extension parser into libssl.
[openssl.git] / 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, const EVP_MD *md,
109                         STACK_OF(X509) *rother, unsigned long flags,
110                         int nmin, int ndays, int badsig);
111
112 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
113 static BIO *init_responder(const char *port);
114 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, const char *port);
115 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
116 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, const char *path,
117                                       const 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 *reqin = NULL, *respin = NULL;
131         char *reqout = NULL, *respout = NULL;
132         char *signfile = NULL, *keyfile = NULL;
133         char *rsignfile = NULL, *rkeyfile = NULL;
134         char *outfile = NULL;
135         int add_nonce = 1, noverify = 0, use_ssl = -1;
136         STACK_OF(CONF_VALUE) *headers = NULL;
137         OCSP_REQUEST *req = NULL;
138         OCSP_RESPONSE *resp = NULL;
139         OCSP_BASICRESP *bs = NULL;
140         X509 *issuer = NULL, *cert = NULL;
141         X509 *signer = NULL, *rsigner = NULL;
142         EVP_PKEY *key = NULL, *rkey = NULL;
143         BIO *acbio = NULL, *cbio = NULL;
144         BIO *derbio = NULL;
145         BIO *out = NULL;
146         int req_timeout = -1;
147         int req_text = 0, resp_text = 0;
148         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
149         char *CAfile = NULL, *CApath = NULL;
150         X509_STORE *store = NULL;
151         X509_VERIFY_PARAM *vpm = 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 badsig = 0;
159         int i;
160         int ignore_err = 0;
161         STACK_OF(OPENSSL_STRING) *reqnames = NULL;
162         STACK_OF(OCSP_CERTID) *ids = NULL;
163
164         X509 *rca_cert = NULL;
165         char *ridx_filename = NULL;
166         char *rca_filename = NULL;
167         CA_DB *rdb = NULL;
168         int nmin = 0, ndays = -1;
169         const EVP_MD *cert_id_md = NULL, *rsign_md = NULL;
170
171         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
172
173         if (!load_config(bio_err, NULL))
174                 goto end;
175         SSL_load_error_strings();
176         OpenSSL_add_ssl_algorithms();
177         X509V3_EXT_add_rfc6962();
178         args = argv + 1;
179         reqnames = sk_OPENSSL_STRING_new_null();
180         ids = sk_OCSP_CERTID_new_null();
181         while (!badarg && *args && *args[0] == '-')
182                 {
183                 if (!strcmp(*args, "-out"))
184                         {
185                         if (args[1])
186                                 {
187                                 args++;
188                                 outfile = *args;
189                                 }
190                         else badarg = 1;
191                         }
192                 else if (!strcmp(*args, "-timeout"))
193                         {
194                         if (args[1])
195                                 {
196                                 args++;
197                                 req_timeout = atol(*args);
198                                 if (req_timeout < 0)
199                                         {
200                                         BIO_printf(bio_err,
201                                                 "Illegal timeout value %s\n",
202                                                 *args);
203                                         badarg = 1;
204                                         }
205                                 }
206                         else badarg = 1;
207                         }
208                 else if (!strcmp(*args, "-url"))
209                         {
210                         if (args[1])
211                                 {
212                                 args++;
213                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
214                                         {
215                                         BIO_printf(bio_err, "Error parsing URL\n");
216                                         badarg = 1;
217                                         }
218                                 }
219                         else badarg = 1;
220                         }
221                 else if (!strcmp(*args, "-host"))
222                         {
223                         if (args[1])
224                                 {
225                                 args++;
226                                 host = *args;
227                                 }
228                         else badarg = 1;
229                         }
230                 else if (!strcmp(*args, "-port"))
231                         {
232                         if (args[1])
233                                 {
234                                 args++;
235                                 port = *args;
236                                 }
237                         else badarg = 1;
238                         }
239                 else if (!strcmp(*args, "-header"))
240                         {
241                         if (args[1] && args[2])
242                                 {
243                                 if (!X509V3_add_value(args[1], args[2], &headers))
244                                         goto end;
245                                 args += 2;
246                                 }
247                         else badarg = 1;
248                         }
249                 else if (!strcmp(*args, "-ignore_err"))
250                         ignore_err = 1;
251                 else if (!strcmp(*args, "-noverify"))
252                         noverify = 1;
253                 else if (!strcmp(*args, "-nonce"))
254                         add_nonce = 2;
255                 else if (!strcmp(*args, "-no_nonce"))
256                         add_nonce = 0;
257                 else if (!strcmp(*args, "-resp_no_certs"))
258                         rflags |= OCSP_NOCERTS;
259                 else if (!strcmp(*args, "-resp_key_id"))
260                         rflags |= OCSP_RESPID_KEY;
261                 else if (!strcmp(*args, "-no_certs"))
262                         sign_flags |= OCSP_NOCERTS;
263                 else if (!strcmp(*args, "-no_signature_verify"))
264                         verify_flags |= OCSP_NOSIGS;
265                 else if (!strcmp(*args, "-no_cert_verify"))
266                         verify_flags |= OCSP_NOVERIFY;
267                 else if (!strcmp(*args, "-no_chain"))
268                         verify_flags |= OCSP_NOCHAIN;
269                 else if (!strcmp(*args, "-no_cert_checks"))
270                         verify_flags |= OCSP_NOCHECKS;
271                 else if (!strcmp(*args, "-no_explicit"))
272                         verify_flags |= OCSP_NOEXPLICIT;
273                 else if (!strcmp(*args, "-trust_other"))
274                         verify_flags |= OCSP_TRUSTOTHER;
275                 else if (!strcmp(*args, "-no_intern"))
276                         verify_flags |= OCSP_NOINTERN;
277                 else if (!strcmp(*args, "-badsig"))
278                         badsig = 1;
279                 else if (!strcmp(*args, "-text"))
280                         {
281                         req_text = 1;
282                         resp_text = 1;
283                         }
284                 else if (!strcmp(*args, "-req_text"))
285                         req_text = 1;
286                 else if (!strcmp(*args, "-resp_text"))
287                         resp_text = 1;
288                 else if (!strcmp(*args, "-reqin"))
289                         {
290                         if (args[1])
291                                 {
292                                 args++;
293                                 reqin = *args;
294                                 }
295                         else badarg = 1;
296                         }
297                 else if (!strcmp(*args, "-respin"))
298                         {
299                         if (args[1])
300                                 {
301                                 args++;
302                                 respin = *args;
303                                 }
304                         else badarg = 1;
305                         }
306                 else if (!strcmp(*args, "-signer"))
307                         {
308                         if (args[1])
309                                 {
310                                 args++;
311                                 signfile = *args;
312                                 }
313                         else badarg = 1;
314                         }
315                 else if (!strcmp (*args, "-VAfile"))
316                         {
317                         if (args[1])
318                                 {
319                                 args++;
320                                 verify_certfile = *args;
321                                 verify_flags |= OCSP_TRUSTOTHER;
322                                 }
323                         else badarg = 1;
324                         }
325                 else if (!strcmp(*args, "-sign_other"))
326                         {
327                         if (args[1])
328                                 {
329                                 args++;
330                                 sign_certfile = *args;
331                                 }
332                         else badarg = 1;
333                         }
334                 else if (!strcmp(*args, "-verify_other"))
335                         {
336                         if (args[1])
337                                 {
338                                 args++;
339                                 verify_certfile = *args;
340                                 }
341                         else badarg = 1;
342                         }
343                 else if (!strcmp (*args, "-CAfile"))
344                         {
345                         if (args[1])
346                                 {
347                                 args++;
348                                 CAfile = *args;
349                                 }
350                         else badarg = 1;
351                         }
352                 else if (!strcmp (*args, "-CApath"))
353                         {
354                         if (args[1])
355                                 {
356                                 args++;
357                                 CApath = *args;
358                                 }
359                         else badarg = 1;
360                         }
361                 else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
362                         {
363                         if (badarg)
364                                 goto end;
365                         continue;
366                         }
367                 else if (!strcmp (*args, "-validity_period"))
368                         {
369                         if (args[1])
370                                 {
371                                 args++;
372                                 nsec = atol(*args);
373                                 if (nsec < 0)
374                                         {
375                                         BIO_printf(bio_err,
376                                                 "Illegal validity period %s\n",
377                                                 *args);
378                                         badarg = 1;
379                                         }
380                                 }
381                         else badarg = 1;
382                         }
383                 else if (!strcmp (*args, "-status_age"))
384                         {
385                         if (args[1])
386                                 {
387                                 args++;
388                                 maxage = atol(*args);
389                                 if (maxage < 0)
390                                         {
391                                         BIO_printf(bio_err,
392                                                 "Illegal validity age %s\n",
393                                                 *args);
394                                         badarg = 1;
395                                         }
396                                 }
397                         else badarg = 1;
398                         }
399                  else if (!strcmp(*args, "-signkey"))
400                         {
401                         if (args[1])
402                                 {
403                                 args++;
404                                 keyfile = *args;
405                                 }
406                         else badarg = 1;
407                         }
408                 else if (!strcmp(*args, "-reqout"))
409                         {
410                         if (args[1])
411                                 {
412                                 args++;
413                                 reqout = *args;
414                                 }
415                         else badarg = 1;
416                         }
417                 else if (!strcmp(*args, "-respout"))
418                         {
419                         if (args[1])
420                                 {
421                                 args++;
422                                 respout = *args;
423                                 }
424                         else badarg = 1;
425                         }
426                  else if (!strcmp(*args, "-path"))
427                         {
428                         if (args[1])
429                                 {
430                                 args++;
431                                 path = *args;
432                                 }
433                         else badarg = 1;
434                         }
435                 else if (!strcmp(*args, "-issuer"))
436                         {
437                         if (args[1])
438                                 {
439                                 args++;
440                                 X509_free(issuer);
441                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
442                                         NULL, e, "issuer certificate");
443                                 if(!issuer) goto end;
444                                 }
445                         else badarg = 1;
446                         }
447                 else if (!strcmp (*args, "-cert"))
448                         {
449                         if (args[1])
450                                 {
451                                 args++;
452                                 X509_free(cert);
453                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
454                                         NULL, e, "certificate");
455                                 if(!cert) goto end;
456                                 if (!cert_id_md) cert_id_md = EVP_sha1();
457                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
458                                         goto end;
459                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
460                                         goto end;
461                                 }
462                         else badarg = 1;
463                         }
464                 else if (!strcmp(*args, "-serial"))
465                         {
466                         if (args[1])
467                                 {
468                                 args++;
469                                 if (!cert_id_md) cert_id_md = EVP_sha1();
470                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
471                                         goto end;
472                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
473                                         goto end;
474                                 }
475                         else badarg = 1;
476                         }
477                 else if (!strcmp(*args, "-index"))
478                         {
479                         if (args[1])
480                                 {
481                                 args++;
482                                 ridx_filename = *args;
483                                 }
484                         else badarg = 1;
485                         }
486                 else if (!strcmp(*args, "-CA"))
487                         {
488                         if (args[1])
489                                 {
490                                 args++;
491                                 rca_filename = *args;
492                                 }
493                         else badarg = 1;
494                         }
495                 else if (!strcmp (*args, "-nmin"))
496                         {
497                         if (args[1])
498                                 {
499                                 args++;
500                                 nmin = atol(*args);
501                                 if (nmin < 0)
502                                         {
503                                         BIO_printf(bio_err,
504                                                 "Illegal update period %s\n",
505                                                 *args);
506                                         badarg = 1;
507                                         }
508                                 }
509                                 if (ndays == -1)
510                                         ndays = 0;
511                         else badarg = 1;
512                         }
513                 else if (!strcmp (*args, "-nrequest"))
514                         {
515                         if (args[1])
516                                 {
517                                 args++;
518                                 accept_count = atol(*args);
519                                 if (accept_count < 0)
520                                         {
521                                         BIO_printf(bio_err,
522                                                 "Illegal accept count %s\n",
523                                                 *args);
524                                         badarg = 1;
525                                         }
526                                 }
527                         else badarg = 1;
528                         }
529                 else if (!strcmp (*args, "-ndays"))
530                         {
531                         if (args[1])
532                                 {
533                                 args++;
534                                 ndays = atol(*args);
535                                 if (ndays < 0)
536                                         {
537                                         BIO_printf(bio_err,
538                                                 "Illegal update period %s\n",
539                                                 *args);
540                                         badarg = 1;
541                                         }
542                                 }
543                         else badarg = 1;
544                         }
545                 else if (!strcmp(*args, "-rsigner"))
546                         {
547                         if (args[1])
548                                 {
549                                 args++;
550                                 rsignfile = *args;
551                                 }
552                         else badarg = 1;
553                         }
554                 else if (!strcmp(*args, "-rkey"))
555                         {
556                         if (args[1])
557                                 {
558                                 args++;
559                                 rkeyfile = *args;
560                                 }
561                         else badarg = 1;
562                         }
563                 else if (!strcmp(*args, "-rother"))
564                         {
565                         if (args[1])
566                                 {
567                                 args++;
568                                 rcertfile = *args;
569                                 }
570                         else badarg = 1;
571                         }
572                 else if (!strcmp(*args, "-rmd"))
573                         {
574                         if (args[1])
575                                 {
576                                 args++;
577                                 rsign_md = EVP_get_digestbyname(*args);
578                                 if (!rsign_md)
579                                         badarg = 1;
580                                 }
581                         else badarg = 1;
582                         }
583                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
584                         {
585                         badarg = 1;
586                         }
587                 args++;
588                 }
589
590         /* Have we anything to do? */
591         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
592
593         if (badarg)
594                 {
595                 BIO_printf (bio_err, "OCSP utility\n");
596                 BIO_printf (bio_err, "Usage ocsp [options]\n");
597                 BIO_printf (bio_err, "where options are\n");
598                 BIO_printf (bio_err, "-out file          output filename\n");
599                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
600                 BIO_printf (bio_err, "-cert file         certificate to check\n");
601                 BIO_printf (bio_err, "-serial n          serial number to check\n");
602                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
603                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
604                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
605                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
606                 BIO_printf (bio_err, "-req_text          print text form of request\n");
607                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
608                 BIO_printf (bio_err, "-text              print text form of request and response\n");
609                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
610                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
611                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
612                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
613                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
614                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
615                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
616                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
617                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
618                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
619                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
620                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
621                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
622                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
623                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
624                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
625                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
626                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
627                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
628                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
629                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
630                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
631                 BIO_printf (bio_err, "-port num          port to run responder on\n");
632                 BIO_printf (bio_err, "-index file        certificate status index file\n");
633                 BIO_printf (bio_err, "-CA file           CA certificate\n");
634                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
635                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
636                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
637                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
638                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
639                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
640                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
641                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
642                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request\n");
643                 goto end;
644                 }
645
646         if(outfile) out = BIO_new_file(outfile, "w");
647         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
648
649         if(!out)
650                 {
651                 BIO_printf(bio_err, "Error opening output file\n");
652                 goto end;
653                 }
654
655         if (!req && (add_nonce != 2)) add_nonce = 0;
656
657         if (!req && reqin)
658                 {
659                 if (!strcmp(reqin, "-"))
660                         derbio = BIO_new_fp(stdin, BIO_NOCLOSE);
661                 else
662                         derbio = BIO_new_file(reqin, "rb");
663                 if (!derbio)
664                         {
665                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
666                         goto end;
667                         }
668                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
669                 BIO_free(derbio);
670                 if(!req)
671                         {
672                         BIO_printf(bio_err, "Error reading OCSP request\n");
673                         goto end;
674                         }
675                 }
676
677         if (!req && port)
678                 {
679                 acbio = init_responder(port);
680                 if (!acbio)
681                         goto end;
682                 }
683
684         if (rsignfile && !rdb)
685                 {
686                 if (!rkeyfile) rkeyfile = rsignfile;
687                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
688                         NULL, e, "responder certificate");
689                 if (!rsigner)
690                         {
691                         BIO_printf(bio_err, "Error loading responder certificate\n");
692                         goto end;
693                         }
694                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
695                         NULL, e, "CA certificate");
696                 if (rcertfile)
697                         {
698                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
699                                 NULL, e, "responder other certificates");
700                         if (!rother) goto end;
701                         }
702                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
703                         "responder private key");
704                 if (!rkey)
705                         goto end;
706                 }
707         if(acbio)
708                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
709
710         redo_accept:
711
712         if (acbio)
713                 {
714                 if (!do_responder(&req, &cbio, acbio, port))
715                         goto end;
716                 if (!req)
717                         {
718                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
719                         send_ocsp_response(cbio, resp);
720                         goto done_resp;
721                         }
722                 }
723
724         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
725                 {
726                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
727                 goto end;
728                 }
729
730         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
731
732         if (signfile)
733                 {
734                 if (!keyfile) keyfile = signfile;
735                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
736                         NULL, e, "signer certificate");
737                 if (!signer)
738                         {
739                         BIO_printf(bio_err, "Error loading signer certificate\n");
740                         goto end;
741                         }
742                 if (sign_certfile)
743                         {
744                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
745                                 NULL, e, "signer certificates");
746                         if (!sign_other) goto end;
747                         }
748                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
749                         "signer private key");
750                 if (!key)
751                         goto end;
752
753                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
754                         {
755                         BIO_printf(bio_err, "Error signing OCSP request\n");
756                         goto end;
757                         }
758                 }
759
760         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
761
762         if (reqout)
763                 {
764                 if (!strcmp(reqout, "-"))
765                         derbio = BIO_new_fp(stdout, BIO_NOCLOSE);
766                 else
767                         derbio = BIO_new_file(reqout, "wb");
768                 if(!derbio)
769                         {
770                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
771                         goto end;
772                         }
773                 i2d_OCSP_REQUEST_bio(derbio, req);
774                 BIO_free(derbio);
775                 }
776
777         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
778                 {
779                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
780                 goto end;
781                 }
782
783         if (ridx_filename && !rdb)
784                 {
785                 rdb = load_index(ridx_filename, NULL);
786                 if (!rdb) goto end;
787                 if (!index_index(rdb)) goto end;
788                 }
789
790         if (rdb)
791                 {
792                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey,rsign_md, rother, rflags, nmin, ndays, badsig);
793                 if (cbio)
794                         send_ocsp_response(cbio, resp);
795                 }
796         else if (host)
797                 {
798 #ifndef OPENSSL_NO_SOCK
799                 resp = process_responder(bio_err, req, host, path,
800                                         port, use_ssl, headers, req_timeout);
801                 if (!resp)
802                         goto end;
803 #else
804                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
805                 goto end;
806 #endif
807                 }
808         else if (respin)
809                 {
810                 if (!strcmp(respin, "-"))
811                         derbio = BIO_new_fp(stdin, BIO_NOCLOSE);
812                 else
813                         derbio = BIO_new_file(respin, "rb");
814                 if (!derbio)
815                         {
816                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
817                         goto end;
818                         }
819                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
820                 BIO_free(derbio);
821                 if(!resp)
822                         {
823                         BIO_printf(bio_err, "Error reading OCSP response\n");
824                         goto end;
825                         }
826         
827                 }
828         else
829                 {
830                 ret = 0;
831                 goto end;
832                 }
833
834         done_resp:
835
836         if (respout)
837                 {
838                 if (!strcmp(respout, "-"))
839                         derbio = BIO_new_fp(stdout, BIO_NOCLOSE);
840                 else
841                         derbio = BIO_new_file(respout, "wb");
842                 if(!derbio)
843                         {
844                         BIO_printf(bio_err, "Error opening file %s\n", respout);
845                         goto end;
846                         }
847                 i2d_OCSP_RESPONSE_bio(derbio, resp);
848                 BIO_free(derbio);
849                 }
850
851         i = OCSP_response_status(resp);
852
853         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
854                 {
855                 BIO_printf(out, "Responder Error: %s (%d)\n",
856                                 OCSP_response_status_str(i), i);
857                 if (ignore_err)
858                         goto redo_accept;
859                 ret = 0;
860                 goto end;
861                 }
862
863         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
864
865         /* If running as responder don't verify our own response */
866         if (cbio)
867                 {
868                 if (accept_count > 0)
869                         accept_count--;
870                 /* Redo if more connections needed */
871                 if (accept_count)
872                         {
873                         BIO_free_all(cbio);
874                         cbio = NULL;
875                         OCSP_REQUEST_free(req);
876                         req = NULL;
877                         OCSP_RESPONSE_free(resp);
878                         resp = NULL;
879                         goto redo_accept;
880                         }
881                 ret = 0;
882                 goto end;
883                 }
884         else if (ridx_filename)
885                 {
886                 ret = 0;
887                 goto end;
888                 }
889
890         if (!store)
891                 store = setup_verify(bio_err, CAfile, CApath);
892         if (!store)
893                 goto end;
894         if (vpm)
895                 X509_STORE_set1_param(store, vpm);
896         if (verify_certfile)
897                 {
898                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
899                         NULL, e, "validator certificate");
900                 if (!verify_other) goto end;
901                 }
902
903         bs = OCSP_response_get1_basic(resp);
904
905         if (!bs)
906                 {
907                 BIO_printf(bio_err, "Error parsing response\n");
908                 goto end;
909                 }
910
911         ret = 0;
912
913         if (!noverify)
914                 {
915                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
916                         {
917                         if (i == -1)
918                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
919                         else
920                                 {
921                                 BIO_printf(bio_err, "Nonce Verify error\n");
922                                 ret = 1;
923                                 goto end;
924                                 }
925                         }
926
927                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
928                 if(i <= 0)
929                         {
930                         BIO_printf(bio_err, "Response Verify Failure\n");
931                         ERR_print_errors(bio_err);
932                         ret = 1;
933                         }
934                 else
935                         BIO_printf(bio_err, "Response verify OK\n");
936
937                 }
938
939         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
940                 ret = 1;
941
942 end:
943         ERR_print_errors(bio_err);
944         X509_free(signer);
945         X509_STORE_free(store);
946         if (vpm)
947                 X509_VERIFY_PARAM_free(vpm);
948         EVP_PKEY_free(key);
949         EVP_PKEY_free(rkey);
950         X509_free(issuer);
951         X509_free(cert);
952         X509_free(rsigner);
953         X509_free(rca_cert);
954         free_index(rdb);
955         BIO_free_all(cbio);
956         BIO_free_all(acbio);
957         BIO_free(out);
958         OCSP_REQUEST_free(req);
959         OCSP_RESPONSE_free(resp);
960         OCSP_BASICRESP_free(bs);
961         sk_OPENSSL_STRING_free(reqnames);
962         sk_OCSP_CERTID_free(ids);
963         sk_X509_pop_free(sign_other, X509_free);
964         sk_X509_pop_free(verify_other, X509_free);
965         sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);
966
967         if (use_ssl != -1)
968                 {
969                 OPENSSL_free(host);
970                 OPENSSL_free(port);
971                 OPENSSL_free(path);
972                 }
973
974         X509V3_EXT_cleanup();
975         OPENSSL_EXIT(ret);
976 }
977
978 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
979                                 STACK_OF(OCSP_CERTID) *ids)
980         {
981         OCSP_CERTID *id;
982         if(!issuer)
983                 {
984                 BIO_printf(bio_err, "No issuer certificate specified\n");
985                 return 0;
986                 }
987         if(!*req) *req = OCSP_REQUEST_new();
988         if(!*req) goto err;
989         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
990         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
991         if(!OCSP_request_add0_id(*req, id)) goto err;
992         return 1;
993
994         err:
995         BIO_printf(bio_err, "Error Creating OCSP request\n");
996         return 0;
997         }
998
999 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
1000                                 STACK_OF(OCSP_CERTID) *ids)
1001         {
1002         OCSP_CERTID *id;
1003         X509_NAME *iname;
1004         ASN1_BIT_STRING *ikey;
1005         ASN1_INTEGER *sno;
1006         if(!issuer)
1007                 {
1008                 BIO_printf(bio_err, "No issuer certificate specified\n");
1009                 return 0;
1010                 }
1011         if(!*req) *req = OCSP_REQUEST_new();
1012         if(!*req) goto err;
1013         iname = X509_get_subject_name(issuer);
1014         ikey = X509_get0_pubkey_bitstr(issuer);
1015         sno = s2i_ASN1_INTEGER(NULL, serial);
1016         if(!sno)
1017                 {
1018                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
1019                 return 0;
1020                 }
1021         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
1022         ASN1_INTEGER_free(sno);
1023         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
1024         if(!OCSP_request_add0_id(*req, id)) goto err;
1025         return 1;
1026
1027         err:
1028         BIO_printf(bio_err, "Error Creating OCSP request\n");
1029         return 0;
1030         }
1031
1032 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
1033                               STACK_OF(OPENSSL_STRING) *names,
1034                               STACK_OF(OCSP_CERTID) *ids, long nsec,
1035                               long maxage)
1036         {
1037         OCSP_CERTID *id;
1038         char *name;
1039         int i;
1040
1041         int status, reason;
1042
1043         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
1044
1045         if (!bs || !req || !sk_OPENSSL_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
1046                 return 1;
1047
1048         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
1049                 {
1050                 id = sk_OCSP_CERTID_value(ids, i);
1051                 name = sk_OPENSSL_STRING_value(names, i);
1052                 BIO_printf(out, "%s: ", name);
1053
1054                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
1055                                         &rev, &thisupd, &nextupd))
1056                         {
1057                         BIO_puts(out, "ERROR: No Status found.\n");
1058                         continue;
1059                         }
1060
1061                 /* Check validity: if invalid write to output BIO so we
1062                  * know which response this refers to.
1063                  */
1064                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1065                         {
1066                         BIO_puts(out, "WARNING: Status times invalid.\n");
1067                         ERR_print_errors(out);
1068                         }
1069                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1070
1071                 BIO_puts(out, "\tThis Update: ");
1072                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1073                 BIO_puts(out, "\n");
1074
1075                 if(nextupd)
1076                         {
1077                         BIO_puts(out, "\tNext Update: ");
1078                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1079                         BIO_puts(out, "\n");
1080                         }
1081
1082                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1083                         continue;
1084
1085                 if (reason != -1)
1086                         BIO_printf(out, "\tReason: %s\n",
1087                                 OCSP_crl_reason_str(reason));
1088
1089                 BIO_puts(out, "\tRevocation Time: ");
1090                 ASN1_GENERALIZEDTIME_print(out, rev);
1091                 BIO_puts(out, "\n");
1092                 }
1093
1094         return 1;
1095         }
1096
1097
1098 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1099                         X509 *ca, X509 *rcert,
1100                         EVP_PKEY *rkey, const EVP_MD *rmd,
1101                         STACK_OF(X509) *rother, unsigned long flags,
1102                         int nmin, int ndays, int badsig)
1103         {
1104         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1105         OCSP_CERTID *cid, *ca_id = NULL;
1106         OCSP_BASICRESP *bs = NULL;
1107         int i, id_count, ret = 1;
1108
1109         id_count = OCSP_request_onereq_count(req);
1110
1111         if (id_count <= 0)
1112                 {
1113                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1114                 goto end;
1115                 }
1116
1117
1118         bs = OCSP_BASICRESP_new();
1119         thisupd = X509_gmtime_adj(NULL, 0);
1120         if (ndays != -1)
1121                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1122
1123         /* Examine each certificate id in the request */
1124         for (i = 0; i < id_count; i++)
1125                 {
1126                 OCSP_ONEREQ *one;
1127                 ASN1_INTEGER *serial;
1128                 char **inf;
1129                 ASN1_OBJECT *cert_id_md_oid;
1130                 const EVP_MD *cert_id_md;
1131                 one = OCSP_request_onereq_get0(req, i);
1132                 cid = OCSP_onereq_get0_id(one);
1133
1134                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1135
1136                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);       
1137                 if (! cert_id_md) 
1138                         {
1139                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1140                                 NULL);
1141                                 goto end;
1142                         }       
1143                 if (ca_id) OCSP_CERTID_free(ca_id);
1144                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1145
1146                 /* Is this request about our CA? */
1147                 if (OCSP_id_issuer_cmp(ca_id, cid))
1148                         {
1149                         OCSP_basic_add1_status(bs, cid,
1150                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1151                                                 0, NULL,
1152                                                 thisupd, nextupd);
1153                         continue;
1154                         }
1155                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1156                 inf = lookup_serial(db, serial);
1157                 if (!inf)
1158                         OCSP_basic_add1_status(bs, cid,
1159                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1160                                                 0, NULL,
1161                                                 thisupd, nextupd);
1162                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1163                         OCSP_basic_add1_status(bs, cid,
1164                                                 V_OCSP_CERTSTATUS_GOOD,
1165                                                 0, NULL,
1166                                                 thisupd, nextupd);
1167                 else if (inf[DB_type][0] == DB_TYPE_REV)
1168                         {
1169                         ASN1_OBJECT *inst = NULL;
1170                         ASN1_TIME *revtm = NULL;
1171                         ASN1_GENERALIZEDTIME *invtm = NULL;
1172                         OCSP_SINGLERESP *single;
1173                         int reason = -1;
1174                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1175                         single = OCSP_basic_add1_status(bs, cid,
1176                                                 V_OCSP_CERTSTATUS_REVOKED,
1177                                                 reason, revtm,
1178                                                 thisupd, nextupd);
1179                         if (invtm)
1180                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1181                         else if (inst)
1182                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1183                         ASN1_OBJECT_free(inst);
1184                         ASN1_TIME_free(revtm);
1185                         ASN1_GENERALIZEDTIME_free(invtm);
1186                         }
1187                 }
1188
1189         OCSP_copy_nonce(bs, req);
1190         
1191         OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags);
1192
1193         if (badsig)
1194                 bs->signature->data[bs->signature->length -1] ^= 0x1;
1195
1196         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1197
1198         end:
1199         ASN1_TIME_free(thisupd);
1200         ASN1_TIME_free(nextupd);
1201         OCSP_CERTID_free(ca_id);
1202         OCSP_BASICRESP_free(bs);
1203         return ret;
1204
1205         }
1206
1207 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1208         {
1209         int i;
1210         BIGNUM *bn = NULL;
1211         char *itmp, *row[DB_NUMBER],**rrow;
1212         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1213         bn = ASN1_INTEGER_to_BN(ser,NULL);
1214         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1215         if (BN_is_zero(bn))
1216                 itmp = BUF_strdup("00");
1217         else
1218                 itmp = BN_bn2hex(bn);
1219         row[DB_serial] = itmp;
1220         BN_free(bn);
1221         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1222         OPENSSL_free(itmp);
1223         return rrow;
1224         }
1225
1226 /* Quick and dirty OCSP server: read in and parse input request */
1227
1228 static BIO *init_responder(const char *port)
1229         {
1230         BIO *acbio = NULL, *bufbio = NULL;
1231         bufbio = BIO_new(BIO_f_buffer());
1232         if (!bufbio) 
1233                 goto err;
1234 #ifndef OPENSSL_NO_SOCK
1235         acbio = BIO_new_accept(port);
1236 #else
1237         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1238 #endif
1239         if (!acbio)
1240                 goto err;
1241         BIO_set_accept_bios(acbio, bufbio);
1242         bufbio = NULL;
1243
1244         if (BIO_do_accept(acbio) <= 0)
1245                 {
1246                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1247                         ERR_print_errors(bio_err);
1248                         goto err;
1249                 }
1250
1251         return acbio;
1252
1253         err:
1254         BIO_free_all(acbio);
1255         BIO_free(bufbio);
1256         return NULL;
1257         }
1258
1259 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio,
1260                         const char *port)
1261         {
1262         int have_post = 0, len;
1263         OCSP_REQUEST *req = NULL;
1264         char inbuf[1024];
1265         BIO *cbio = NULL;
1266
1267         if (BIO_do_accept(acbio) <= 0)
1268                 {
1269                         BIO_printf(bio_err, "Error accepting connection\n");
1270                         ERR_print_errors(bio_err);
1271                         return 0;
1272                 }
1273
1274         cbio = BIO_pop(acbio);
1275         *pcbio = cbio;
1276
1277         for(;;)
1278                 {
1279                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1280                 if (len <= 0)
1281                         return 1;
1282                 /* Look for "POST" signalling start of query */
1283                 if (!have_post)
1284                         {
1285                         if(strncmp(inbuf, "POST", 4))
1286                                 {
1287                                 BIO_printf(bio_err, "Invalid request\n");
1288                                 return 1;
1289                                 }
1290                         have_post = 1;
1291                         }
1292                 /* Look for end of headers */
1293                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1294                         break;
1295                 }
1296
1297         /* Try to read OCSP request */
1298
1299         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1300
1301         if (!req)
1302                 {
1303                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1304                 ERR_print_errors(bio_err);
1305                 }
1306
1307         *preq = req;
1308
1309         return 1;
1310
1311         }
1312
1313 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1314         {
1315         char http_resp[] = 
1316                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1317                 "Content-Length: %d\r\n\r\n";
1318         if (!cbio)
1319                 return 0;
1320         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1321         i2d_OCSP_RESPONSE_bio(cbio, resp);
1322         (void)BIO_flush(cbio);
1323         return 1;
1324         }
1325
1326 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, const char *path,
1327                                       const STACK_OF(CONF_VALUE) *headers,
1328                                       OCSP_REQUEST *req, int req_timeout)
1329         {
1330         int fd;
1331         int rv;
1332         int i;
1333         OCSP_REQ_CTX *ctx = NULL;
1334         OCSP_RESPONSE *rsp = NULL;
1335         fd_set confds;
1336         struct timeval tv;
1337
1338         if (req_timeout != -1)
1339                 BIO_set_nbio(cbio, 1);
1340
1341         rv = BIO_do_connect(cbio);
1342
1343         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1344                 {
1345                 BIO_puts(err, "Error connecting BIO\n");
1346                 return NULL;
1347                 }
1348
1349         if (BIO_get_fd(cbio, &fd) <= 0)
1350                 {
1351                 BIO_puts(err, "Can't get connection fd\n");
1352                 goto err;
1353                 }
1354
1355         if (req_timeout != -1 && rv <= 0)
1356                 {
1357                 FD_ZERO(&confds);
1358                 openssl_fdset(fd, &confds);
1359                 tv.tv_usec = 0;
1360                 tv.tv_sec = req_timeout;
1361                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1362                 if (rv == 0)
1363                         {
1364                         BIO_puts(err, "Timeout on connect\n");
1365                         return NULL;
1366                         }
1367                 }
1368
1369
1370         ctx = OCSP_sendreq_new(cbio, path, NULL, -1);
1371         if (!ctx)
1372                 return NULL;
1373
1374         for (i = 0; i < sk_CONF_VALUE_num(headers); i++)
1375                 {
1376                 CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i);
1377                 if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value))
1378                         goto err;
1379                 }
1380
1381         if (!OCSP_REQ_CTX_set1_req(ctx, req))
1382                 goto err;
1383         
1384         for (;;)
1385                 {
1386                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1387                 if (rv != -1)
1388                         break;
1389                 if (req_timeout == -1)
1390                         continue;
1391                 FD_ZERO(&confds);
1392                 openssl_fdset(fd, &confds);
1393                 tv.tv_usec = 0;
1394                 tv.tv_sec = req_timeout;
1395                 if (BIO_should_read(cbio))
1396                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1397                 else if (BIO_should_write(cbio))
1398                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1399                 else
1400                         {
1401                         BIO_puts(err, "Unexpected retry condition\n");
1402                         goto err;
1403                         }
1404                 if (rv == 0)
1405                         {
1406                         BIO_puts(err, "Timeout on request\n");
1407                         break;
1408                         }
1409                 if (rv == -1)
1410                         {
1411                         BIO_puts(err, "Select error\n");
1412                         break;
1413                         }
1414
1415                 }
1416         err:
1417         if (ctx)
1418                 OCSP_REQ_CTX_free(ctx);
1419
1420         return rsp;
1421         }
1422
1423 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1424                                  const char *host, const char *path,
1425                                  const char *port, int use_ssl,
1426                                  const STACK_OF(CONF_VALUE) *headers,
1427                                  int req_timeout)
1428         {
1429         BIO *cbio = NULL;
1430         SSL_CTX *ctx = NULL;
1431         OCSP_RESPONSE *resp = NULL;
1432         cbio = BIO_new_connect(host);
1433         if (!cbio)
1434                 {
1435                 BIO_printf(err, "Error creating connect BIO\n");
1436                 goto end;
1437                 }
1438         if (port) BIO_set_conn_port(cbio, port);
1439         if (use_ssl == 1)
1440                 {
1441                 BIO *sbio;
1442 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1443                 ctx = SSL_CTX_new(SSLv23_client_method());
1444 #elif !defined(OPENSSL_NO_SSL3)
1445                 ctx = SSL_CTX_new(SSLv3_client_method());
1446 #elif !defined(OPENSSL_NO_SSL2)
1447                 ctx = SSL_CTX_new(SSLv2_client_method());
1448 #else
1449                 BIO_printf(err, "SSL is disabled\n");
1450                         goto end;
1451 #endif
1452                 if (ctx == NULL)
1453                         {
1454                         BIO_printf(err, "Error creating SSL context.\n");
1455                         goto end;
1456                         }
1457                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1458                 sbio = BIO_new_ssl(ctx, 1);
1459                 cbio = BIO_push(sbio, cbio);
1460                 }
1461         resp = query_responder(err, cbio, path, headers, req, req_timeout);
1462         if (!resp)
1463                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1464         end:
1465         if (cbio)
1466                 BIO_free_all(cbio);
1467         if (ctx)
1468                 SSL_CTX_free(ctx);
1469         return resp;
1470         }
1471
1472 #endif