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