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1 | /* | |
2 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project | |
3 | * 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 <ctype.h> | |
72 | # include "apps.h" /* needs to be included before the openssl | |
73 | * headers! */ | |
74 | # include <openssl/e_os2.h> | |
75 | # include <openssl/crypto.h> | |
76 | # include <openssl/err.h> | |
77 | # include <openssl/ssl.h> | |
78 | # include <openssl/evp.h> | |
79 | # include <openssl/bn.h> | |
80 | # include <openssl/x509v3.h> | |
81 | ||
82 | # if defined(NETWARE_CLIB) | |
83 | # ifdef NETWARE_BSDSOCK | |
84 | # include <sys/socket.h> | |
85 | # include <sys/bsdskt.h> | |
86 | # else | |
87 | # include <novsock2.h> | |
88 | # endif | |
89 | # elif defined(NETWARE_LIBC) | |
90 | # ifdef NETWARE_BSDSOCK | |
91 | # include <sys/select.h> | |
92 | # else | |
93 | # include <novsock2.h> | |
94 | # endif | |
95 | # endif | |
96 | ||
97 | /* Maximum leeway in validity period: default 5 minutes */ | |
98 | # define MAX_VALIDITY_PERIOD (5 * 60) | |
99 | ||
100 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, | |
101 | const EVP_MD *cert_id_md, X509 *issuer, | |
102 | STACK_OF(OCSP_CERTID) *ids); | |
103 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, | |
104 | const EVP_MD *cert_id_md, X509 *issuer, | |
105 | STACK_OF(OCSP_CERTID) *ids); | |
106 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, | |
107 | STACK_OF(OPENSSL_STRING) *names, | |
108 | STACK_OF(OCSP_CERTID) *ids, long nsec, | |
109 | long maxage); | |
110 | static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, | |
111 | CA_DB *db, X509 *ca, X509 *rcert, | |
112 | EVP_PKEY *rkey, const EVP_MD *md, | |
113 | STACK_OF(X509) *rother, unsigned long flags, | |
114 | int nmin, int ndays, int badsig); | |
115 | ||
116 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser); | |
117 | static BIO *init_responder(const char *port); | |
118 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, | |
119 | const char *port); | |
120 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp); | |
121 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *path, | |
122 | const STACK_OF(CONF_VALUE) *headers, | |
123 | OCSP_REQUEST *req, int req_timeout); | |
124 | ||
125 | typedef enum OPTION_choice { | |
126 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
127 | OPT_OUTFILE, OPT_TIMEOUT, OPT_URL, OPT_HOST, OPT_PORT, | |
128 | OPT_IGNORE_ERR, OPT_NOVERIFY, OPT_NONCE, OPT_NO_NONCE, | |
129 | OPT_RESP_NO_CERTS, OPT_RESP_KEY_ID, OPT_NO_CERTS, | |
130 | OPT_NO_SIGNATURE_VERIFY, OPT_NO_CERT_VERIFY, OPT_NO_CHAIN, | |
131 | OPT_NO_CERT_CHECKS, OPT_NO_EXPLICIT, OPT_TRUST_OTHER, | |
132 | OPT_NO_INTERN, OPT_BADSIG, OPT_TEXT, OPT_REQ_TEXT, OPT_RESP_TEXT, | |
133 | OPT_REQIN, OPT_RESPIN, OPT_SIGNER, OPT_VAFILE, OPT_SIGN_OTHER, | |
134 | OPT_VERIFY_OTHER, OPT_CAFILE, OPT_CAPATH, | |
135 | OPT_VALIDITY_PERIOD, OPT_STATUS_AGE, OPT_SIGNKEY, OPT_REQOUT, | |
136 | OPT_RESPOUT, OPT_PATH, OPT_ISSUER, OPT_CERT, OPT_SERIAL, | |
137 | OPT_INDEX, OPT_CA, OPT_NMIN, OPT_REQUEST, OPT_NDAYS, OPT_RSIGNER, | |
138 | OPT_RKEY, OPT_ROTHER, OPT_RMD, OPT_HEADER, | |
139 | OPT_V_ENUM, | |
140 | OPT_MD | |
141 | } OPTION_CHOICE; | |
142 | ||
143 | OPTIONS ocsp_options[] = { | |
144 | {"help", OPT_HELP, '-', "Display this summary"}, | |
145 | {"out", OPT_OUTFILE, '>', "Output filename"}, | |
146 | {"timeout", OPT_TIMEOUT, 'p'}, | |
147 | {"url", OPT_URL, 's', "Responder URL"}, | |
148 | {"host", OPT_HOST, 's', "host:prot top to connect to"}, | |
149 | {"port", OPT_PORT, 'p', "Port to run responder on"}, | |
150 | {"ignore_err", OPT_IGNORE_ERR, '-'}, | |
151 | {"noverify", OPT_NOVERIFY, '-', "Don't verify response at all"}, | |
152 | {"nonce", OPT_NONCE, '-', "Add OCSP nonce to request"}, | |
153 | {"no_nonce", OPT_NO_NONCE, '-', "Don't add OCSP nonce to request"}, | |
154 | {"resp_no_certs", OPT_RESP_NO_CERTS, '-', | |
155 | "Don't include any certificates in response"}, | |
156 | {"resp_key_id", OPT_RESP_KEY_ID, '-', | |
157 | "Identify reponse by signing certificate key ID"}, | |
158 | {"no_certs", OPT_NO_CERTS, '-', | |
159 | "Don't include any certificates in signed request"}, | |
160 | {"no_signature_verify", OPT_NO_SIGNATURE_VERIFY, '-', | |
161 | "Don't check signature on response"}, | |
162 | {"no_cert_verify", OPT_NO_CERT_VERIFY, '-', | |
163 | "Don't check signing certificate"}, | |
164 | {"no_chain", OPT_NO_CHAIN, '-', "Don't chain verify response"}, | |
165 | {"no_cert_checks", OPT_NO_CERT_CHECKS, '-', | |
166 | "Don't do additional checks on signing certificate"}, | |
167 | {"no_explicit", OPT_NO_EXPLICIT, '-'}, | |
168 | {"trust_other", OPT_TRUST_OTHER, '-', | |
169 | "Don't verify additional certificates"}, | |
170 | {"no_intern", OPT_NO_INTERN, '-', | |
171 | "Don't search certificates contained in response for signer"}, | |
172 | {"badsig", OPT_BADSIG, '-'}, | |
173 | {"text", OPT_TEXT, '-', "Print text form of request and response"}, | |
174 | {"req_text", OPT_REQ_TEXT, '-', "Print text form of request"}, | |
175 | {"resp_text", OPT_RESP_TEXT, '-', "Print text form of response"}, | |
176 | {"reqin", OPT_REQIN, 's', "File with the DER-encoded request"}, | |
177 | {"respin", OPT_RESPIN, 's', "File with the DER-encoded response"}, | |
178 | {"signer", OPT_SIGNER, '<', "Certificate to sign OCSP request with"}, | |
179 | {"VAfile", OPT_VAFILE, '<', "Validator certificates file"}, | |
180 | {"sign_other", OPT_SIGN_OTHER, '<', | |
181 | "Additional certificates to include in signed request"}, | |
182 | {"verify_other", OPT_VERIFY_OTHER, '<', | |
183 | "Additional certificates to search for signer"}, | |
184 | {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, | |
185 | {"CApath", OPT_CAPATH, '<', "Trusted certificates directory"}, | |
186 | {"validity_period", OPT_VALIDITY_PERIOD, 'u', | |
187 | "Maximum validity discrepancy in seconds"}, | |
188 | {"status_age", OPT_STATUS_AGE, 'p', "Maximum status age in seconds"}, | |
189 | {"signkey", OPT_SIGNKEY, 's', "Private key to sign OCSP request with"}, | |
190 | {"reqout", OPT_REQOUT, 's', "Output file for the DER-encoded request"}, | |
191 | {"respout", OPT_RESPOUT, 's', "Output file for the DER-encoded response"}, | |
192 | {"path", OPT_PATH, 's', "Path to use in OCSP request"}, | |
193 | {"issuer", OPT_ISSUER, '<', "Issuer certificate"}, | |
194 | {"cert", OPT_CERT, '<', "Certificate to check"}, | |
195 | {"serial", OPT_SERIAL, 's', "Nerial number to check"}, | |
196 | {"index", OPT_INDEX, '<', "Certificate status index file"}, | |
197 | {"CA", OPT_CA, '<', "CA certificate"}, | |
198 | {"nmin", OPT_NMIN, 'p', "Number of minutes before next update"}, | |
199 | {"nrequest", OPT_REQUEST, 'p', | |
200 | "Number of requests to accept (default unlimited)"}, | |
201 | {"ndays", OPT_NDAYS, 'p', "Number of days before next update"}, | |
202 | {"rsigner", OPT_RSIGNER, '<', | |
203 | "Sesponder certificate to sign responses with"}, | |
204 | {"rkey", OPT_RKEY, '<', "Responder key to sign responses with"}, | |
205 | {"rother", OPT_ROTHER, '<', "Other certificates to include in response"}, | |
206 | {"rmd", OPT_RMD, 's'}, | |
207 | {"header", OPT_HEADER, 's', "key=value header to add"}, | |
208 | {"", OPT_MD, '-', "Any supported digest"}, | |
209 | OPT_V_OPTIONS, | |
210 | {NULL} | |
211 | }; | |
212 | ||
213 | int ocsp_main(int argc, char **argv) | |
214 | { | |
215 | BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL; | |
216 | const EVP_MD *cert_id_md = NULL, *rsign_md = NULL; | |
217 | CA_DB *rdb = NULL; | |
218 | EVP_PKEY *key = NULL, *rkey = NULL; | |
219 | OCSP_BASICRESP *bs = NULL; | |
220 | OCSP_REQUEST *req = NULL; | |
221 | OCSP_RESPONSE *resp = NULL; | |
222 | STACK_OF(CONF_VALUE) *headers = NULL; | |
223 | STACK_OF(OCSP_CERTID) *ids = NULL; | |
224 | STACK_OF(OPENSSL_STRING) *reqnames = NULL; | |
225 | STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL; | |
226 | STACK_OF(X509) *issuers = NULL; | |
227 | X509 *issuer = NULL, *cert = NULL, *rca_cert = NULL; | |
228 | X509 *signer = NULL, *rsigner = NULL; | |
229 | X509_STORE *store = NULL; | |
230 | X509_VERIFY_PARAM *vpm = NULL; | |
231 | char *CAfile = NULL, *CApath = NULL, *header, *value; | |
232 | char *host = NULL, *port = NULL, *path = "/", *outfile = NULL; | |
233 | char *rca_filename = NULL, *reqin = NULL, *respin = NULL; | |
234 | char *reqout = NULL, *respout = NULL, *ridx_filename = NULL; | |
235 | char *rsignfile = NULL, *rkeyfile = NULL; | |
236 | char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL; | |
237 | char *signfile = NULL, *keyfile = NULL; | |
238 | char *thost = NULL, *tport = NULL, *tpath = NULL; | |
239 | int accept_count = -1, add_nonce = 1, noverify = 0, use_ssl = -1; | |
240 | int vpmtouched = 0, badsig = 0, i, ignore_err = 0, nmin = 0, ndays = -1; | |
241 | int req_text = 0, resp_text = 0, req_timeout = -1, ret = 1; | |
242 | long nsec = MAX_VALIDITY_PERIOD, maxage = -1; | |
243 | unsigned long sign_flags = 0, verify_flags = 0, rflags = 0; | |
244 | OPTION_CHOICE o; | |
245 | char *prog; | |
246 | ||
247 | reqnames = sk_OPENSSL_STRING_new_null(); | |
248 | if (!reqnames) | |
249 | goto end; | |
250 | ids = sk_OCSP_CERTID_new_null(); | |
251 | if (!ids) | |
252 | goto end; | |
253 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL) | |
254 | return 1; | |
255 | ||
256 | prog = opt_init(argc, argv, ocsp_options); | |
257 | while ((o = opt_next()) != OPT_EOF) { | |
258 | switch (o) { | |
259 | case OPT_EOF: | |
260 | case OPT_ERR: | |
261 | opthelp: | |
262 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
263 | goto end; | |
264 | case OPT_HELP: | |
265 | ret = 0; | |
266 | opt_help(ocsp_options); | |
267 | goto end; | |
268 | case OPT_OUTFILE: | |
269 | outfile = opt_arg(); | |
270 | break; | |
271 | case OPT_TIMEOUT: | |
272 | req_timeout = atoi(opt_arg()); | |
273 | break; | |
274 | case OPT_URL: | |
275 | OPENSSL_free(thost); | |
276 | OPENSSL_free(tport); | |
277 | OPENSSL_free(tpath); | |
278 | thost = tport = tpath = NULL; | |
279 | if (!OCSP_parse_url(opt_arg(), &host, &port, &path, &use_ssl)) { | |
280 | BIO_printf(bio_err, "%s Error parsing URL\n", prog); | |
281 | goto end; | |
282 | } | |
283 | thost = host; | |
284 | tport = port; | |
285 | tpath = path; | |
286 | break; | |
287 | case OPT_HOST: | |
288 | host = opt_arg(); | |
289 | break; | |
290 | case OPT_PORT: | |
291 | port = opt_arg(); | |
292 | break; | |
293 | case OPT_IGNORE_ERR: | |
294 | ignore_err = 1; | |
295 | break; | |
296 | case OPT_NOVERIFY: | |
297 | noverify = 1; | |
298 | break; | |
299 | case OPT_NONCE: | |
300 | add_nonce = 2; | |
301 | break; | |
302 | case OPT_NO_NONCE: | |
303 | add_nonce = 0; | |
304 | break; | |
305 | case OPT_RESP_NO_CERTS: | |
306 | rflags |= OCSP_NOCERTS; | |
307 | break; | |
308 | case OPT_RESP_KEY_ID: | |
309 | rflags |= OCSP_RESPID_KEY; | |
310 | break; | |
311 | case OPT_NO_CERTS: | |
312 | sign_flags |= OCSP_NOCERTS; | |
313 | break; | |
314 | case OPT_NO_SIGNATURE_VERIFY: | |
315 | verify_flags |= OCSP_NOSIGS; | |
316 | break; | |
317 | case OPT_NO_CERT_VERIFY: | |
318 | verify_flags |= OCSP_NOVERIFY; | |
319 | break; | |
320 | case OPT_NO_CHAIN: | |
321 | verify_flags |= OCSP_NOCHAIN; | |
322 | break; | |
323 | case OPT_NO_CERT_CHECKS: | |
324 | verify_flags |= OCSP_NOCHECKS; | |
325 | break; | |
326 | case OPT_NO_EXPLICIT: | |
327 | verify_flags |= OCSP_NOEXPLICIT; | |
328 | break; | |
329 | case OPT_TRUST_OTHER: | |
330 | verify_flags |= OCSP_TRUSTOTHER; | |
331 | break; | |
332 | case OPT_NO_INTERN: | |
333 | verify_flags |= OCSP_NOINTERN; | |
334 | break; | |
335 | case OPT_BADSIG: | |
336 | badsig = 1; | |
337 | break; | |
338 | case OPT_TEXT: | |
339 | req_text = resp_text = 1; | |
340 | break; | |
341 | case OPT_REQ_TEXT: | |
342 | req_text = 1; | |
343 | break; | |
344 | case OPT_RESP_TEXT: | |
345 | resp_text = 1; | |
346 | break; | |
347 | case OPT_REQIN: | |
348 | reqin = opt_arg(); | |
349 | break; | |
350 | case OPT_RESPIN: | |
351 | respin = opt_arg(); | |
352 | break; | |
353 | case OPT_SIGNER: | |
354 | signfile = opt_arg(); | |
355 | break; | |
356 | case OPT_VAFILE: | |
357 | verify_certfile = opt_arg(); | |
358 | verify_flags |= OCSP_TRUSTOTHER; | |
359 | break; | |
360 | case OPT_SIGN_OTHER: | |
361 | sign_certfile = opt_arg(); | |
362 | break; | |
363 | case OPT_VERIFY_OTHER: | |
364 | verify_certfile = opt_arg(); | |
365 | break; | |
366 | case OPT_CAFILE: | |
367 | CAfile = opt_arg(); | |
368 | break; | |
369 | case OPT_CAPATH: | |
370 | CApath = opt_arg(); | |
371 | break; | |
372 | case OPT_V_CASES: | |
373 | if (!opt_verify(o, vpm)) | |
374 | goto end; | |
375 | vpmtouched++; | |
376 | break; | |
377 | case OPT_VALIDITY_PERIOD: | |
378 | opt_long(opt_arg(), &nsec); | |
379 | break; | |
380 | case OPT_STATUS_AGE: | |
381 | opt_long(opt_arg(), &maxage); | |
382 | break; | |
383 | case OPT_SIGNKEY: | |
384 | keyfile = opt_arg(); | |
385 | break; | |
386 | case OPT_REQOUT: | |
387 | reqout = opt_arg(); | |
388 | break; | |
389 | case OPT_RESPOUT: | |
390 | respout = opt_arg(); | |
391 | break; | |
392 | case OPT_PATH: | |
393 | path = opt_arg(); | |
394 | break; | |
395 | case OPT_ISSUER: | |
396 | X509_free(issuer); | |
397 | issuer = load_cert(opt_arg(), FORMAT_PEM, | |
398 | NULL, NULL, "issuer certificate"); | |
399 | if (issuer == NULL) | |
400 | goto end; | |
401 | if ((issuers = sk_X509_new_null()) == NULL) | |
402 | goto end; | |
403 | sk_X509_push(issuers, issuer); | |
404 | break; | |
405 | case OPT_CERT: | |
406 | X509_free(cert); | |
407 | cert = load_cert(opt_arg(), FORMAT_PEM, | |
408 | NULL, NULL, "certificate"); | |
409 | if (cert == NULL) | |
410 | goto end; | |
411 | if (cert_id_md == NULL) | |
412 | cert_id_md = EVP_sha1(); | |
413 | if (!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids)) | |
414 | goto end; | |
415 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) | |
416 | goto end; | |
417 | break; | |
418 | case OPT_SERIAL: | |
419 | if (cert_id_md == NULL) | |
420 | cert_id_md = EVP_sha1(); | |
421 | if (!add_ocsp_serial(&req, opt_arg(), cert_id_md, issuer, ids)) | |
422 | goto end; | |
423 | if (!sk_OPENSSL_STRING_push(reqnames, opt_arg())) | |
424 | goto end; | |
425 | break; | |
426 | case OPT_INDEX: | |
427 | ridx_filename = opt_arg(); | |
428 | break; | |
429 | case OPT_CA: | |
430 | rca_filename = opt_arg(); | |
431 | break; | |
432 | case OPT_NMIN: | |
433 | opt_int(opt_arg(), &nmin); | |
434 | if (ndays == -1) | |
435 | ndays = 0; | |
436 | break; | |
437 | case OPT_REQUEST: | |
438 | opt_int(opt_arg(), &accept_count); | |
439 | break; | |
440 | case OPT_NDAYS: | |
441 | ndays = atoi(opt_arg()); | |
442 | break; | |
443 | case OPT_RSIGNER: | |
444 | rsignfile = opt_arg(); | |
445 | break; | |
446 | case OPT_RKEY: | |
447 | rkeyfile = opt_arg(); | |
448 | break; | |
449 | case OPT_ROTHER: | |
450 | rcertfile = opt_arg(); | |
451 | break; | |
452 | case OPT_RMD: | |
453 | if (!opt_md(opt_arg(), &rsign_md)) | |
454 | goto end; | |
455 | break; | |
456 | case OPT_HEADER: | |
457 | header = opt_arg(); | |
458 | value = strchr(header, '='); | |
459 | if (value == NULL) { | |
460 | BIO_printf(bio_err, "Missing = in header key=value\n"); | |
461 | goto opthelp; | |
462 | } | |
463 | *value++ = '\0'; | |
464 | if (!X509V3_add_value(header, value, &headers)) | |
465 | goto end; | |
466 | break; | |
467 | case OPT_MD: | |
468 | if (cert_id_md != NULL) { | |
469 | BIO_printf(bio_err, | |
470 | "%s: Digest must be before -cert or -serial\n", | |
471 | prog); | |
472 | goto opthelp; | |
473 | } | |
474 | if (!opt_md(opt_unknown(), &cert_id_md)) | |
475 | goto opthelp; | |
476 | break; | |
477 | } | |
478 | } | |
479 | argc = opt_num_rest(); | |
480 | argv = opt_rest(); | |
481 | ||
482 | /* Have we anything to do? */ | |
483 | if (!req && !reqin && !respin && !(port && ridx_filename)) | |
484 | goto opthelp; | |
485 | ||
486 | if (!app_load_modules(NULL)) | |
487 | goto end; | |
488 | ||
489 | out = bio_open_default(outfile, "w"); | |
490 | if (out == NULL) | |
491 | goto end; | |
492 | ||
493 | if (!req && (add_nonce != 2)) | |
494 | add_nonce = 0; | |
495 | ||
496 | if (!req && reqin) { | |
497 | derbio = bio_open_default(reqin, "rb"); | |
498 | if (derbio == NULL) | |
499 | goto end; | |
500 | req = d2i_OCSP_REQUEST_bio(derbio, NULL); | |
501 | BIO_free(derbio); | |
502 | if (!req) { | |
503 | BIO_printf(bio_err, "Error reading OCSP request\n"); | |
504 | goto end; | |
505 | } | |
506 | } | |
507 | ||
508 | if (!req && port) { | |
509 | acbio = init_responder(port); | |
510 | if (!acbio) | |
511 | goto end; | |
512 | } | |
513 | ||
514 | if (rsignfile && !rdb) { | |
515 | if (!rkeyfile) | |
516 | rkeyfile = rsignfile; | |
517 | rsigner = load_cert(rsignfile, FORMAT_PEM, | |
518 | NULL, NULL, "responder certificate"); | |
519 | if (!rsigner) { | |
520 | BIO_printf(bio_err, "Error loading responder certificate\n"); | |
521 | goto end; | |
522 | } | |
523 | rca_cert = load_cert(rca_filename, FORMAT_PEM, | |
524 | NULL, NULL, "CA certificate"); | |
525 | if (rcertfile) { | |
526 | rother = load_certs(rcertfile, FORMAT_PEM, | |
527 | NULL, NULL, "responder other certificates"); | |
528 | if (!rother) | |
529 | goto end; | |
530 | } | |
531 | rkey = load_key(rkeyfile, FORMAT_PEM, 0, NULL, NULL, | |
532 | "responder private key"); | |
533 | if (!rkey) | |
534 | goto end; | |
535 | } | |
536 | if (acbio) | |
537 | BIO_printf(bio_err, "Waiting for OCSP client connections...\n"); | |
538 | ||
539 | redo_accept: | |
540 | ||
541 | if (acbio) { | |
542 | if (!do_responder(&req, &cbio, acbio, port)) | |
543 | goto end; | |
544 | if (!req) { | |
545 | resp = | |
546 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, | |
547 | NULL); | |
548 | send_ocsp_response(cbio, resp); | |
549 | goto done_resp; | |
550 | } | |
551 | } | |
552 | ||
553 | if (!req && (signfile || reqout || host || add_nonce || ridx_filename)) { | |
554 | BIO_printf(bio_err, "Need an OCSP request for this operation!\n"); | |
555 | goto end; | |
556 | } | |
557 | ||
558 | if (req && add_nonce) | |
559 | OCSP_request_add1_nonce(req, NULL, -1); | |
560 | ||
561 | if (signfile) { | |
562 | if (!keyfile) | |
563 | keyfile = signfile; | |
564 | signer = load_cert(signfile, FORMAT_PEM, | |
565 | NULL, NULL, "signer certificate"); | |
566 | if (!signer) { | |
567 | BIO_printf(bio_err, "Error loading signer certificate\n"); | |
568 | goto end; | |
569 | } | |
570 | if (sign_certfile) { | |
571 | sign_other = load_certs(sign_certfile, FORMAT_PEM, | |
572 | NULL, NULL, "signer certificates"); | |
573 | if (!sign_other) | |
574 | goto end; | |
575 | } | |
576 | key = load_key(keyfile, FORMAT_PEM, 0, NULL, NULL, | |
577 | "signer private key"); | |
578 | if (!key) | |
579 | goto end; | |
580 | ||
581 | if (!OCSP_request_sign | |
582 | (req, signer, key, NULL, sign_other, sign_flags)) { | |
583 | BIO_printf(bio_err, "Error signing OCSP request\n"); | |
584 | goto end; | |
585 | } | |
586 | } | |
587 | ||
588 | if (req_text && req) | |
589 | OCSP_REQUEST_print(out, req, 0); | |
590 | ||
591 | if (reqout) { | |
592 | derbio = bio_open_default(reqout, "wb"); | |
593 | if (derbio == NULL) | |
594 | goto end; | |
595 | i2d_OCSP_REQUEST_bio(derbio, req); | |
596 | BIO_free(derbio); | |
597 | } | |
598 | ||
599 | if (ridx_filename && (!rkey || !rsigner || !rca_cert)) { | |
600 | BIO_printf(bio_err, | |
601 | "Need a responder certificate, key and CA for this operation!\n"); | |
602 | goto end; | |
603 | } | |
604 | ||
605 | if (ridx_filename && !rdb) { | |
606 | rdb = load_index(ridx_filename, NULL); | |
607 | if (!rdb) | |
608 | goto end; | |
609 | if (!index_index(rdb)) | |
610 | goto end; | |
611 | } | |
612 | ||
613 | if (rdb) { | |
614 | make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, | |
615 | rsign_md, rother, rflags, nmin, ndays, badsig); | |
616 | if (cbio) | |
617 | send_ocsp_response(cbio, resp); | |
618 | } else if (host) { | |
619 | # ifndef OPENSSL_NO_SOCK | |
620 | resp = process_responder(req, host, path, | |
621 | port, use_ssl, headers, req_timeout); | |
622 | if (!resp) | |
623 | goto end; | |
624 | # else | |
625 | BIO_printf(bio_err, | |
626 | "Error creating connect BIO - sockets not supported.\n"); | |
627 | goto end; | |
628 | # endif | |
629 | } else if (respin) { | |
630 | derbio = bio_open_default(respin, "rb"); | |
631 | if (derbio == NULL) | |
632 | goto end; | |
633 | resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); | |
634 | BIO_free(derbio); | |
635 | if (!resp) { | |
636 | BIO_printf(bio_err, "Error reading OCSP response\n"); | |
637 | goto end; | |
638 | } | |
639 | } else { | |
640 | ret = 0; | |
641 | goto end; | |
642 | } | |
643 | ||
644 | done_resp: | |
645 | ||
646 | if (respout) { | |
647 | derbio = bio_open_default(respout, "wb"); | |
648 | if (derbio == NULL) | |
649 | goto end; | |
650 | i2d_OCSP_RESPONSE_bio(derbio, resp); | |
651 | BIO_free(derbio); | |
652 | } | |
653 | ||
654 | i = OCSP_response_status(resp); | |
655 | if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL) { | |
656 | BIO_printf(out, "Responder Error: %s (%d)\n", | |
657 | OCSP_response_status_str(i), i); | |
658 | if (ignore_err) | |
659 | goto redo_accept; | |
660 | ret = 0; | |
661 | goto end; | |
662 | } | |
663 | ||
664 | if (resp_text) | |
665 | OCSP_RESPONSE_print(out, resp, 0); | |
666 | ||
667 | /* If running as responder don't verify our own response */ | |
668 | if (cbio) { | |
669 | /* If not unlimited, see if we took all we should. */ | |
670 | if (accept_count != -1 && --accept_count <= 0) { | |
671 | ret = 0; | |
672 | goto end; | |
673 | } | |
674 | BIO_free_all(cbio); | |
675 | cbio = NULL; | |
676 | OCSP_REQUEST_free(req); | |
677 | req = NULL; | |
678 | OCSP_RESPONSE_free(resp); | |
679 | resp = NULL; | |
680 | goto redo_accept; | |
681 | } | |
682 | if (ridx_filename) { | |
683 | ret = 0; | |
684 | goto end; | |
685 | } | |
686 | ||
687 | if (!store) { | |
688 | store = setup_verify(CAfile, CApath); | |
689 | if (!store) | |
690 | goto end; | |
691 | } | |
692 | if (vpmtouched) | |
693 | X509_STORE_set1_param(store, vpm); | |
694 | if (verify_certfile) { | |
695 | verify_other = load_certs(verify_certfile, FORMAT_PEM, | |
696 | NULL, NULL, "validator certificate"); | |
697 | if (!verify_other) | |
698 | goto end; | |
699 | } | |
700 | ||
701 | bs = OCSP_response_get1_basic(resp); | |
702 | if (!bs) { | |
703 | BIO_printf(bio_err, "Error parsing response\n"); | |
704 | goto end; | |
705 | } | |
706 | ||
707 | ret = 0; | |
708 | ||
709 | if (!noverify) { | |
710 | if (req && ((i = OCSP_check_nonce(req, bs)) <= 0)) { | |
711 | if (i == -1) | |
712 | BIO_printf(bio_err, "WARNING: no nonce in response\n"); | |
713 | else { | |
714 | BIO_printf(bio_err, "Nonce Verify error\n"); | |
715 | ret = 1; | |
716 | goto end; | |
717 | } | |
718 | } | |
719 | ||
720 | i = OCSP_basic_verify(bs, verify_other, store, verify_flags); | |
721 | if (i <= 0 && issuers) { | |
722 | i = OCSP_basic_verify(bs, issuers, store, OCSP_TRUSTOTHER); | |
723 | if (i > 0) | |
724 | ERR_clear_error(); | |
725 | } | |
726 | if (i <= 0) { | |
727 | BIO_printf(bio_err, "Response Verify Failure\n"); | |
728 | ERR_print_errors(bio_err); | |
729 | ret = 1; | |
730 | } else | |
731 | BIO_printf(bio_err, "Response verify OK\n"); | |
732 | ||
733 | } | |
734 | ||
735 | print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage); | |
736 | ||
737 | end: | |
738 | ERR_print_errors(bio_err); | |
739 | X509_free(signer); | |
740 | X509_STORE_free(store); | |
741 | X509_VERIFY_PARAM_free(vpm); | |
742 | EVP_PKEY_free(key); | |
743 | EVP_PKEY_free(rkey); | |
744 | X509_free(cert); | |
745 | X509_free(rsigner); | |
746 | X509_free(rca_cert); | |
747 | free_index(rdb); | |
748 | BIO_free_all(cbio); | |
749 | BIO_free_all(acbio); | |
750 | BIO_free(out); | |
751 | OCSP_REQUEST_free(req); | |
752 | OCSP_RESPONSE_free(resp); | |
753 | OCSP_BASICRESP_free(bs); | |
754 | sk_OPENSSL_STRING_free(reqnames); | |
755 | sk_OCSP_CERTID_free(ids); | |
756 | sk_X509_pop_free(sign_other, X509_free); | |
757 | sk_X509_pop_free(verify_other, X509_free); | |
758 | sk_CONF_VALUE_pop_free(headers, X509V3_conf_free); | |
759 | OPENSSL_free(thost); | |
760 | OPENSSL_free(tport); | |
761 | OPENSSL_free(tpath); | |
762 | ||
763 | return (ret); | |
764 | } | |
765 | ||
766 | static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, | |
767 | const EVP_MD *cert_id_md, X509 *issuer, | |
768 | STACK_OF(OCSP_CERTID) *ids) | |
769 | { | |
770 | OCSP_CERTID *id; | |
771 | if (!issuer) { | |
772 | BIO_printf(bio_err, "No issuer certificate specified\n"); | |
773 | return 0; | |
774 | } | |
775 | if (!*req) | |
776 | *req = OCSP_REQUEST_new(); | |
777 | if (!*req) | |
778 | goto err; | |
779 | id = OCSP_cert_to_id(cert_id_md, cert, issuer); | |
780 | if (!id || !sk_OCSP_CERTID_push(ids, id)) | |
781 | goto err; | |
782 | if (!OCSP_request_add0_id(*req, id)) | |
783 | goto err; | |
784 | return 1; | |
785 | ||
786 | err: | |
787 | BIO_printf(bio_err, "Error Creating OCSP request\n"); | |
788 | return 0; | |
789 | } | |
790 | ||
791 | static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, | |
792 | const EVP_MD *cert_id_md, X509 *issuer, | |
793 | STACK_OF(OCSP_CERTID) *ids) | |
794 | { | |
795 | OCSP_CERTID *id; | |
796 | X509_NAME *iname; | |
797 | ASN1_BIT_STRING *ikey; | |
798 | ASN1_INTEGER *sno; | |
799 | if (!issuer) { | |
800 | BIO_printf(bio_err, "No issuer certificate specified\n"); | |
801 | return 0; | |
802 | } | |
803 | if (!*req) | |
804 | *req = OCSP_REQUEST_new(); | |
805 | if (!*req) | |
806 | goto err; | |
807 | iname = X509_get_subject_name(issuer); | |
808 | ikey = X509_get0_pubkey_bitstr(issuer); | |
809 | sno = s2i_ASN1_INTEGER(NULL, serial); | |
810 | if (!sno) { | |
811 | BIO_printf(bio_err, "Error converting serial number %s\n", serial); | |
812 | return 0; | |
813 | } | |
814 | id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno); | |
815 | ASN1_INTEGER_free(sno); | |
816 | if (!id || !sk_OCSP_CERTID_push(ids, id)) | |
817 | goto err; | |
818 | if (!OCSP_request_add0_id(*req, id)) | |
819 | goto err; | |
820 | return 1; | |
821 | ||
822 | err: | |
823 | BIO_printf(bio_err, "Error Creating OCSP request\n"); | |
824 | return 0; | |
825 | } | |
826 | ||
827 | static void print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req, | |
828 | STACK_OF(OPENSSL_STRING) *names, | |
829 | STACK_OF(OCSP_CERTID) *ids, long nsec, | |
830 | long maxage) | |
831 | { | |
832 | OCSP_CERTID *id; | |
833 | char *name; | |
834 | int i, status, reason; | |
835 | ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd; | |
836 | ||
837 | if (!bs || !req || !sk_OPENSSL_STRING_num(names) | |
838 | || !sk_OCSP_CERTID_num(ids)) | |
839 | return; | |
840 | ||
841 | for (i = 0; i < sk_OCSP_CERTID_num(ids); i++) { | |
842 | id = sk_OCSP_CERTID_value(ids, i); | |
843 | name = sk_OPENSSL_STRING_value(names, i); | |
844 | BIO_printf(out, "%s: ", name); | |
845 | ||
846 | if (!OCSP_resp_find_status(bs, id, &status, &reason, | |
847 | &rev, &thisupd, &nextupd)) { | |
848 | BIO_puts(out, "ERROR: No Status found.\n"); | |
849 | continue; | |
850 | } | |
851 | ||
852 | /* | |
853 | * Check validity: if invalid write to output BIO so we know which | |
854 | * response this refers to. | |
855 | */ | |
856 | if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage)) { | |
857 | BIO_puts(out, "WARNING: Status times invalid.\n"); | |
858 | ERR_print_errors(out); | |
859 | } | |
860 | BIO_printf(out, "%s\n", OCSP_cert_status_str(status)); | |
861 | ||
862 | BIO_puts(out, "\tThis Update: "); | |
863 | ASN1_GENERALIZEDTIME_print(out, thisupd); | |
864 | BIO_puts(out, "\n"); | |
865 | ||
866 | if (nextupd) { | |
867 | BIO_puts(out, "\tNext Update: "); | |
868 | ASN1_GENERALIZEDTIME_print(out, nextupd); | |
869 | BIO_puts(out, "\n"); | |
870 | } | |
871 | ||
872 | if (status != V_OCSP_CERTSTATUS_REVOKED) | |
873 | continue; | |
874 | ||
875 | if (reason != -1) | |
876 | BIO_printf(out, "\tReason: %s\n", OCSP_crl_reason_str(reason)); | |
877 | ||
878 | BIO_puts(out, "\tRevocation Time: "); | |
879 | ASN1_GENERALIZEDTIME_print(out, rev); | |
880 | BIO_puts(out, "\n"); | |
881 | } | |
882 | } | |
883 | ||
884 | static void make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, | |
885 | CA_DB *db, X509 *ca, X509 *rcert, | |
886 | EVP_PKEY *rkey, const EVP_MD *rmd, | |
887 | STACK_OF(X509) *rother, unsigned long flags, | |
888 | int nmin, int ndays, int badsig) | |
889 | { | |
890 | ASN1_TIME *thisupd = NULL, *nextupd = NULL; | |
891 | OCSP_CERTID *cid, *ca_id = NULL; | |
892 | OCSP_BASICRESP *bs = NULL; | |
893 | int i, id_count; | |
894 | ||
895 | id_count = OCSP_request_onereq_count(req); | |
896 | ||
897 | if (id_count <= 0) { | |
898 | *resp = | |
899 | OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL); | |
900 | goto end; | |
901 | } | |
902 | ||
903 | bs = OCSP_BASICRESP_new(); | |
904 | thisupd = X509_gmtime_adj(NULL, 0); | |
905 | if (ndays != -1) | |
906 | nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24); | |
907 | ||
908 | /* Examine each certificate id in the request */ | |
909 | for (i = 0; i < id_count; i++) { | |
910 | OCSP_ONEREQ *one; | |
911 | ASN1_INTEGER *serial; | |
912 | char **inf; | |
913 | ASN1_OBJECT *cert_id_md_oid; | |
914 | const EVP_MD *cert_id_md; | |
915 | one = OCSP_request_onereq_get0(req, i); | |
916 | cid = OCSP_onereq_get0_id(one); | |
917 | ||
918 | OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid); | |
919 | ||
920 | cert_id_md = EVP_get_digestbyobj(cert_id_md_oid); | |
921 | if (!cert_id_md) { | |
922 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR, | |
923 | NULL); | |
924 | goto end; | |
925 | } | |
926 | OCSP_CERTID_free(ca_id); | |
927 | ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca); | |
928 | ||
929 | /* Is this request about our CA? */ | |
930 | if (OCSP_id_issuer_cmp(ca_id, cid)) { | |
931 | OCSP_basic_add1_status(bs, cid, | |
932 | V_OCSP_CERTSTATUS_UNKNOWN, | |
933 | 0, NULL, thisupd, nextupd); | |
934 | continue; | |
935 | } | |
936 | OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid); | |
937 | inf = lookup_serial(db, serial); | |
938 | if (!inf) | |
939 | OCSP_basic_add1_status(bs, cid, | |
940 | V_OCSP_CERTSTATUS_UNKNOWN, | |
941 | 0, NULL, thisupd, nextupd); | |
942 | else if (inf[DB_type][0] == DB_TYPE_VAL) | |
943 | OCSP_basic_add1_status(bs, cid, | |
944 | V_OCSP_CERTSTATUS_GOOD, | |
945 | 0, NULL, thisupd, nextupd); | |
946 | else if (inf[DB_type][0] == DB_TYPE_REV) { | |
947 | ASN1_OBJECT *inst = NULL; | |
948 | ASN1_TIME *revtm = NULL; | |
949 | ASN1_GENERALIZEDTIME *invtm = NULL; | |
950 | OCSP_SINGLERESP *single; | |
951 | int reason = -1; | |
952 | unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]); | |
953 | single = OCSP_basic_add1_status(bs, cid, | |
954 | V_OCSP_CERTSTATUS_REVOKED, | |
955 | reason, revtm, thisupd, nextupd); | |
956 | if (invtm) | |
957 | OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, | |
958 | invtm, 0, 0); | |
959 | else if (inst) | |
960 | OCSP_SINGLERESP_add1_ext_i2d(single, | |
961 | NID_hold_instruction_code, inst, | |
962 | 0, 0); | |
963 | ASN1_OBJECT_free(inst); | |
964 | ASN1_TIME_free(revtm); | |
965 | ASN1_GENERALIZEDTIME_free(invtm); | |
966 | } | |
967 | } | |
968 | ||
969 | OCSP_copy_nonce(bs, req); | |
970 | ||
971 | OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags); | |
972 | ||
973 | if (badsig) { | |
974 | ASN1_OCTET_STRING *sig = OCSP_resp_get0_signature(bs); | |
975 | unsigned char *sigptr = ASN1_STRING_data(sig); | |
976 | sigptr[ASN1_STRING_length(sig) - 1] ^= 0x1; | |
977 | } | |
978 | ||
979 | *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs); | |
980 | ||
981 | end: | |
982 | ASN1_TIME_free(thisupd); | |
983 | ASN1_TIME_free(nextupd); | |
984 | OCSP_CERTID_free(ca_id); | |
985 | OCSP_BASICRESP_free(bs); | |
986 | } | |
987 | ||
988 | static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser) | |
989 | { | |
990 | int i; | |
991 | BIGNUM *bn = NULL; | |
992 | char *itmp, *row[DB_NUMBER], **rrow; | |
993 | for (i = 0; i < DB_NUMBER; i++) | |
994 | row[i] = NULL; | |
995 | bn = ASN1_INTEGER_to_BN(ser, NULL); | |
996 | OPENSSL_assert(bn); /* FIXME: should report an error at this | |
997 | * point and abort */ | |
998 | if (BN_is_zero(bn)) | |
999 | itmp = BUF_strdup("00"); | |
1000 | else | |
1001 | itmp = BN_bn2hex(bn); | |
1002 | row[DB_serial] = itmp; | |
1003 | BN_free(bn); | |
1004 | rrow = TXT_DB_get_by_index(db->db, DB_serial, row); | |
1005 | OPENSSL_free(itmp); | |
1006 | return rrow; | |
1007 | } | |
1008 | ||
1009 | /* Quick and dirty OCSP server: read in and parse input request */ | |
1010 | ||
1011 | static BIO *init_responder(const char *port) | |
1012 | { | |
1013 | BIO *acbio = NULL, *bufbio = NULL; | |
1014 | ||
1015 | # ifdef OPENSSL_NO_SOCK | |
1016 | BIO_printf(bio_err, | |
1017 | "Error setting up accept BIO - sockets not supported.\n"); | |
1018 | return NULL; | |
1019 | # endif | |
1020 | bufbio = BIO_new(BIO_f_buffer()); | |
1021 | if (!bufbio) | |
1022 | goto err; | |
1023 | acbio = BIO_new(BIO_s_accept()); | |
1024 | if (acbio == NULL | |
1025 | || BIO_set_bind_mode(acbio, BIO_BIND_REUSEADDR) < 0 | |
1026 | || BIO_set_accept_port(acbio, port) < 0) { | |
1027 | BIO_printf(bio_err, "Error setting up accept BIO\n"); | |
1028 | ERR_print_errors(bio_err); | |
1029 | goto err; | |
1030 | } | |
1031 | ||
1032 | BIO_set_accept_bios(acbio, bufbio); | |
1033 | bufbio = NULL; | |
1034 | if (BIO_do_accept(acbio) <= 0) { | |
1035 | BIO_printf(bio_err, "Error starting accept\n"); | |
1036 | ERR_print_errors(bio_err); | |
1037 | goto err; | |
1038 | } | |
1039 | ||
1040 | return acbio; | |
1041 | ||
1042 | err: | |
1043 | BIO_free_all(acbio); | |
1044 | BIO_free(bufbio); | |
1045 | return NULL; | |
1046 | } | |
1047 | ||
1048 | ||
1049 | /* | |
1050 | * Decode %xx URL-decoding in-place. Ignores mal-formed sequences. | |
1051 | */ | |
1052 | static int urldecode(char *p) | |
1053 | { | |
1054 | unsigned char *out = (unsigned char *)p; | |
1055 | unsigned char *save = out; | |
1056 | ||
1057 | for (; *p; p++) { | |
1058 | if (*p != '%') | |
1059 | *out++ = *p; | |
1060 | else if (isxdigit(p[1]) && isxdigit(p[2])) { | |
1061 | *out++ = (app_hex(p[1]) << 4) | app_hex(p[2]); | |
1062 | p += 2; | |
1063 | } | |
1064 | else | |
1065 | return -1; | |
1066 | } | |
1067 | *out = '\0'; | |
1068 | return (int)(out - save); | |
1069 | } | |
1070 | ||
1071 | static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, | |
1072 | const char *port) | |
1073 | { | |
1074 | int len; | |
1075 | OCSP_REQUEST *req = NULL; | |
1076 | char inbuf[2048], reqbuf[2048]; | |
1077 | char *p, *q; | |
1078 | BIO *cbio = NULL, *getbio = NULL, *b64 = NULL; | |
1079 | ||
1080 | if (BIO_do_accept(acbio) <= 0) { | |
1081 | BIO_printf(bio_err, "Error accepting connection\n"); | |
1082 | ERR_print_errors(bio_err); | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | cbio = BIO_pop(acbio); | |
1087 | *pcbio = cbio; | |
1088 | ||
1089 | /* Read the request line. */ | |
1090 | len = BIO_gets(cbio, reqbuf, sizeof reqbuf); | |
1091 | if (len <= 0) | |
1092 | return 1; | |
1093 | if (strncmp(reqbuf, "GET ", 4) == 0) { | |
1094 | /* Expecting GET {sp} /URL {sp} HTTP/1.x */ | |
1095 | for (p = reqbuf + 4; *p == ' '; ++p) | |
1096 | continue; | |
1097 | if (*p != '/') { | |
1098 | BIO_printf(bio_err, "Invalid request -- bad URL\n"); | |
1099 | return 1; | |
1100 | } | |
1101 | p++; | |
1102 | ||
1103 | /* Splice off the HTTP version identifier. */ | |
1104 | for (q = p; *q; q++) | |
1105 | if (*q == ' ') | |
1106 | break; | |
1107 | if (strncmp(q, " HTTP/1.", 8) != 0) { | |
1108 | BIO_printf(bio_err, "Invalid request -- bad HTTP vesion\n"); | |
1109 | return 1; | |
1110 | } | |
1111 | *q = '\0'; | |
1112 | len = urldecode(p); | |
1113 | if (len <= 0) { | |
1114 | BIO_printf(bio_err, "Invalid request -- bad URL encoding\n"); | |
1115 | return 1; | |
1116 | } | |
1117 | if ((getbio = BIO_new_mem_buf(p, len)) == NULL | |
1118 | || (b64 = BIO_new(BIO_f_base64())) == NULL) { | |
1119 | BIO_printf(bio_err, "Could not allocate memory\n"); | |
1120 | ERR_print_errors(bio_err); | |
1121 | return 1; | |
1122 | } | |
1123 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
1124 | getbio = BIO_push(b64, getbio); | |
1125 | } else if (strncmp(reqbuf, "POST ", 5) != 0) { | |
1126 | BIO_printf(bio_err, "Invalid request -- bad HTTP verb\n"); | |
1127 | return 1; | |
1128 | } | |
1129 | ||
1130 | /* Read and skip past the headers. */ | |
1131 | for (;;) { | |
1132 | len = BIO_gets(cbio, inbuf, sizeof inbuf); | |
1133 | if (len <= 0) | |
1134 | return 1; | |
1135 | if ((inbuf[0] == '\r') || (inbuf[0] == '\n')) | |
1136 | break; | |
1137 | } | |
1138 | ||
1139 | /* Try to read OCSP request */ | |
1140 | if (getbio) { | |
1141 | req = d2i_OCSP_REQUEST_bio(getbio, NULL); | |
1142 | BIO_free_all(getbio); | |
1143 | } else | |
1144 | req = d2i_OCSP_REQUEST_bio(cbio, NULL); | |
1145 | ||
1146 | if (!req) { | |
1147 | BIO_printf(bio_err, "Error parsing OCSP request\n"); | |
1148 | ERR_print_errors(bio_err); | |
1149 | } | |
1150 | ||
1151 | *preq = req; | |
1152 | ||
1153 | return 1; | |
1154 | ||
1155 | } | |
1156 | ||
1157 | static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp) | |
1158 | { | |
1159 | char http_resp[] = | |
1160 | "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n" | |
1161 | "Content-Length: %d\r\n\r\n"; | |
1162 | if (!cbio) | |
1163 | return 0; | |
1164 | BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL)); | |
1165 | i2d_OCSP_RESPONSE_bio(cbio, resp); | |
1166 | (void)BIO_flush(cbio); | |
1167 | return 1; | |
1168 | } | |
1169 | ||
1170 | static OCSP_RESPONSE *query_responder(BIO *cbio, const char *path, | |
1171 | const STACK_OF(CONF_VALUE) *headers, | |
1172 | OCSP_REQUEST *req, int req_timeout) | |
1173 | { | |
1174 | int fd; | |
1175 | int rv; | |
1176 | int i; | |
1177 | OCSP_REQ_CTX *ctx = NULL; | |
1178 | OCSP_RESPONSE *rsp = NULL; | |
1179 | fd_set confds; | |
1180 | struct timeval tv; | |
1181 | ||
1182 | if (req_timeout != -1) | |
1183 | BIO_set_nbio(cbio, 1); | |
1184 | ||
1185 | rv = BIO_do_connect(cbio); | |
1186 | ||
1187 | if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio))) { | |
1188 | BIO_puts(bio_err, "Error connecting BIO\n"); | |
1189 | return NULL; | |
1190 | } | |
1191 | ||
1192 | if (BIO_get_fd(cbio, &fd) <= 0) { | |
1193 | BIO_puts(bio_err, "Can't get connection fd\n"); | |
1194 | goto err; | |
1195 | } | |
1196 | ||
1197 | if (req_timeout != -1 && rv <= 0) { | |
1198 | FD_ZERO(&confds); | |
1199 | openssl_fdset(fd, &confds); | |
1200 | tv.tv_usec = 0; | |
1201 | tv.tv_sec = req_timeout; | |
1202 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); | |
1203 | if (rv == 0) { | |
1204 | BIO_puts(bio_err, "Timeout on connect\n"); | |
1205 | return NULL; | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | ctx = OCSP_sendreq_new(cbio, path, NULL, -1); | |
1210 | if (!ctx) | |
1211 | return NULL; | |
1212 | ||
1213 | for (i = 0; i < sk_CONF_VALUE_num(headers); i++) { | |
1214 | CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i); | |
1215 | if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value)) | |
1216 | goto err; | |
1217 | } | |
1218 | ||
1219 | if (!OCSP_REQ_CTX_set1_req(ctx, req)) | |
1220 | goto err; | |
1221 | ||
1222 | for (;;) { | |
1223 | rv = OCSP_sendreq_nbio(&rsp, ctx); | |
1224 | if (rv != -1) | |
1225 | break; | |
1226 | if (req_timeout == -1) | |
1227 | continue; | |
1228 | FD_ZERO(&confds); | |
1229 | openssl_fdset(fd, &confds); | |
1230 | tv.tv_usec = 0; | |
1231 | tv.tv_sec = req_timeout; | |
1232 | if (BIO_should_read(cbio)) | |
1233 | rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv); | |
1234 | else if (BIO_should_write(cbio)) | |
1235 | rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv); | |
1236 | else { | |
1237 | BIO_puts(bio_err, "Unexpected retry condition\n"); | |
1238 | goto err; | |
1239 | } | |
1240 | if (rv == 0) { | |
1241 | BIO_puts(bio_err, "Timeout on request\n"); | |
1242 | break; | |
1243 | } | |
1244 | if (rv == -1) { | |
1245 | BIO_puts(bio_err, "Select error\n"); | |
1246 | break; | |
1247 | } | |
1248 | ||
1249 | } | |
1250 | err: | |
1251 | OCSP_REQ_CTX_free(ctx); | |
1252 | ||
1253 | return rsp; | |
1254 | } | |
1255 | ||
1256 | OCSP_RESPONSE *process_responder(OCSP_REQUEST *req, | |
1257 | const char *host, const char *path, | |
1258 | const char *port, int use_ssl, | |
1259 | const STACK_OF(CONF_VALUE) *headers, | |
1260 | int req_timeout) | |
1261 | { | |
1262 | BIO *cbio = NULL; | |
1263 | SSL_CTX *ctx = NULL; | |
1264 | OCSP_RESPONSE *resp = NULL; | |
1265 | int found, i; | |
1266 | ||
1267 | cbio = BIO_new_connect(host); | |
1268 | if (!cbio) { | |
1269 | BIO_printf(bio_err, "Error creating connect BIO\n"); | |
1270 | goto end; | |
1271 | } | |
1272 | if (port) | |
1273 | BIO_set_conn_port(cbio, port); | |
1274 | if (use_ssl == 1) { | |
1275 | BIO *sbio; | |
1276 | ctx = SSL_CTX_new(TLS_client_method()); | |
1277 | if (ctx == NULL) { | |
1278 | BIO_printf(bio_err, "Error creating SSL context.\n"); | |
1279 | goto end; | |
1280 | } | |
1281 | SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); | |
1282 | sbio = BIO_new_ssl(ctx, 1); | |
1283 | cbio = BIO_push(sbio, cbio); | |
1284 | } | |
1285 | for (found = i = 0; i < sk_CONF_VALUE_num(headers); i++) { | |
1286 | CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i); | |
1287 | if (strcasecmp("host", hdr->name) == 0) { | |
1288 | found = 1; | |
1289 | break; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | if (!found && !X509V3_add_value("Host", host, &headers)) | |
1294 | BIO_printf(bio_err, "Error setting HTTP Host header\n"); | |
1295 | ||
1296 | resp = query_responder(cbio, path, headers, req, req_timeout); | |
1297 | if (!resp) | |
1298 | BIO_printf(bio_err, "Error querying OCSP responder\n"); | |
1299 | end: | |
1300 | BIO_free_all(cbio); | |
1301 | SSL_CTX_free(ctx); | |
1302 | return resp; | |
1303 | } | |
1304 | ||
1305 | #endif |