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source: vbox/trunk/src/libs/openssl-1.1.1f/apps/ts.c@ 83663

Last change on this file since 83663 was 83531, checked in by vboxsync, 5 years ago

setting svn:sync-process=export for openssl-1.1.1f, all files except tests
File size: 30.3 KB
Line 
1/*
2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_TS
12NON_EMPTY_TRANSLATION_UNIT
13#else
14# include <stdio.h>
15# include <stdlib.h>
16# include <string.h>
17# include "apps.h"
18# include "progs.h"
19# include <openssl/bio.h>
20# include <openssl/err.h>
21# include <openssl/pem.h>
22# include <openssl/rand.h>
23# include <openssl/ts.h>
24# include <openssl/bn.h>
25
26/* Request nonce length, in bits (must be a multiple of 8). */
27# define NONCE_LENGTH 64
28
29/* Name of config entry that defines the OID file. */
30# define ENV_OID_FILE "oid_file"
31
32/* Is |EXACTLY_ONE| of three pointers set? */
33# define EXACTLY_ONE(a, b, c) \
34 (( a && !b && !c) || \
35 ( b && !a && !c) || \
36 ( c && !a && !b))
37
38static ASN1_OBJECT *txt2obj(const char *oid);
39static CONF *load_config_file(const char *configfile);
40
41/* Query related functions. */
42static int query_command(const char *data, const char *digest,
43 const EVP_MD *md, const char *policy, int no_nonce,
44 int cert, const char *in, const char *out, int text);
45static TS_REQ *create_query(BIO *data_bio, const char *digest, const EVP_MD *md,
46 const char *policy, int no_nonce, int cert);
47static int create_digest(BIO *input, const char *digest,
48 const EVP_MD *md, unsigned char **md_value);
49static ASN1_INTEGER *create_nonce(int bits);
50
51/* Reply related functions. */
52static int reply_command(CONF *conf, const char *section, const char *engine,
53 const char *queryfile, const char *passin, const char *inkey,
54 const EVP_MD *md, const char *signer, const char *chain,
55 const char *policy, const char *in, int token_in,
56 const char *out, int token_out, int text);
57static TS_RESP *read_PKCS7(BIO *in_bio);
58static TS_RESP *create_response(CONF *conf, const char *section, const char *engine,
59 const char *queryfile, const char *passin,
60 const char *inkey, const EVP_MD *md, const char *signer,
61 const char *chain, const char *policy);
62static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data);
63static ASN1_INTEGER *next_serial(const char *serialfile);
64static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial);
65
66/* Verify related functions. */
67static int verify_command(const char *data, const char *digest, const char *queryfile,
68 const char *in, int token_in,
69 const char *CApath, const char *CAfile, const char *untrusted,
70 X509_VERIFY_PARAM *vpm);
71static TS_VERIFY_CTX *create_verify_ctx(const char *data, const char *digest,
72 const char *queryfile,
73 const char *CApath, const char *CAfile,
74 const char *untrusted,
75 X509_VERIFY_PARAM *vpm);
76static X509_STORE *create_cert_store(const char *CApath, const char *CAfile,
77 X509_VERIFY_PARAM *vpm);
78static int verify_cb(int ok, X509_STORE_CTX *ctx);
79
80typedef enum OPTION_choice {
81 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
82 OPT_ENGINE, OPT_CONFIG, OPT_SECTION, OPT_QUERY, OPT_DATA,
83 OPT_DIGEST, OPT_TSPOLICY, OPT_NO_NONCE, OPT_CERT,
84 OPT_IN, OPT_TOKEN_IN, OPT_OUT, OPT_TOKEN_OUT, OPT_TEXT,
85 OPT_REPLY, OPT_QUERYFILE, OPT_PASSIN, OPT_INKEY, OPT_SIGNER,
86 OPT_CHAIN, OPT_VERIFY, OPT_CAPATH, OPT_CAFILE, OPT_UNTRUSTED,
87 OPT_MD, OPT_V_ENUM, OPT_R_ENUM
88} OPTION_CHOICE;
89
90const OPTIONS ts_options[] = {
91 {"help", OPT_HELP, '-', "Display this summary"},
92 {"config", OPT_CONFIG, '<', "Configuration file"},
93 {"section", OPT_SECTION, 's', "Section to use within config file"},
94 {"query", OPT_QUERY, '-', "Generate a TS query"},
95 {"data", OPT_DATA, '<', "File to hash"},
96 {"digest", OPT_DIGEST, 's', "Digest (as a hex string)"},
97 OPT_R_OPTIONS,
98 {"tspolicy", OPT_TSPOLICY, 's', "Policy OID to use"},
99 {"no_nonce", OPT_NO_NONCE, '-', "Do not include a nonce"},
100 {"cert", OPT_CERT, '-', "Put cert request into query"},
101 {"in", OPT_IN, '<', "Input file"},
102 {"token_in", OPT_TOKEN_IN, '-', "Input is a PKCS#7 file"},
103 {"out", OPT_OUT, '>', "Output file"},
104 {"token_out", OPT_TOKEN_OUT, '-', "Output is a PKCS#7 file"},
105 {"text", OPT_TEXT, '-', "Output text (not DER)"},
106 {"reply", OPT_REPLY, '-', "Generate a TS reply"},
107 {"queryfile", OPT_QUERYFILE, '<', "File containing a TS query"},
108 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
109 {"inkey", OPT_INKEY, 's', "File with private key for reply"},
110 {"signer", OPT_SIGNER, 's', "Signer certificate file"},
111 {"chain", OPT_CHAIN, '<', "File with signer CA chain"},
112 {"verify", OPT_VERIFY, '-', "Verify a TS response"},
113 {"CApath", OPT_CAPATH, '/', "Path to trusted CA files"},
114 {"CAfile", OPT_CAFILE, '<', "File with trusted CA certs"},
115 {"untrusted", OPT_UNTRUSTED, '<', "File with untrusted certs"},
116 {"", OPT_MD, '-', "Any supported digest"},
117# ifndef OPENSSL_NO_ENGINE
118 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
119# endif
120 {OPT_HELP_STR, 1, '-', "\nOptions specific to 'ts -verify': \n"},
121 OPT_V_OPTIONS,
122 {OPT_HELP_STR, 1, '-', "\n"},
123 {NULL}
124};
125
126/*
127 * This command is so complex, special help is needed.
128 */
129static char* opt_helplist[] = {
130 "Typical uses:",
131 "ts -query [-rand file...] [-config file] [-data file]",
132 " [-digest hexstring] [-tspolicy oid] [-no_nonce] [-cert]",
133 " [-in file] [-out file] [-text]",
134 " or",
135 "ts -reply [-config file] [-section tsa_section]",
136 " [-queryfile file] [-passin password]",
137 " [-signer tsa_cert.pem] [-inkey private_key.pem]",
138 " [-chain certs_file.pem] [-tspolicy oid]",
139 " [-in file] [-token_in] [-out file] [-token_out]",
140# ifndef OPENSSL_NO_ENGINE
141 " [-text] [-engine id]",
142# else
143 " [-text]",
144# endif
145 " or",
146 "ts -verify -CApath dir -CAfile file.pem -untrusted file.pem",
147 " [-data file] [-digest hexstring]",
148 " [-queryfile file] -in file [-token_in]",
149 " [[options specific to 'ts -verify']]",
150 NULL,
151};
152
153int ts_main(int argc, char **argv)
154{
155 CONF *conf = NULL;
156 const char *CAfile = NULL, *untrusted = NULL, *prog;
157 const char *configfile = default_config_file, *engine = NULL;
158 const char *section = NULL;
159 char **helpp;
160 char *password = NULL;
161 char *data = NULL, *digest = NULL, *policy = NULL;
162 char *in = NULL, *out = NULL, *queryfile = NULL, *passin = NULL;
163 char *inkey = NULL, *signer = NULL, *chain = NULL, *CApath = NULL;
164 const EVP_MD *md = NULL;
165 OPTION_CHOICE o, mode = OPT_ERR;
166 int ret = 1, no_nonce = 0, cert = 0, text = 0;
167 int vpmtouched = 0;
168 X509_VERIFY_PARAM *vpm = NULL;
169 /* Input is ContentInfo instead of TimeStampResp. */
170 int token_in = 0;
171 /* Output is ContentInfo instead of TimeStampResp. */
172 int token_out = 0;
173
174 if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
175 goto end;
176
177 prog = opt_init(argc, argv, ts_options);
178 while ((o = opt_next()) != OPT_EOF) {
179 switch (o) {
180 case OPT_EOF:
181 case OPT_ERR:
182 opthelp:
183 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
184 goto end;
185 case OPT_HELP:
186 opt_help(ts_options);
187 for (helpp = opt_helplist; *helpp; ++helpp)
188 BIO_printf(bio_err, "%s\n", *helpp);
189 ret = 0;
190 goto end;
191 case OPT_CONFIG:
192 configfile = opt_arg();
193 break;
194 case OPT_SECTION:
195 section = opt_arg();
196 break;
197 case OPT_QUERY:
198 case OPT_REPLY:
199 case OPT_VERIFY:
200 if (mode != OPT_ERR)
201 goto opthelp;
202 mode = o;
203 break;
204 case OPT_DATA:
205 data = opt_arg();
206 break;
207 case OPT_DIGEST:
208 digest = opt_arg();
209 break;
210 case OPT_R_CASES:
211 if (!opt_rand(o))
212 goto end;
213 break;
214 case OPT_TSPOLICY:
215 policy = opt_arg();
216 break;
217 case OPT_NO_NONCE:
218 no_nonce = 1;
219 break;
220 case OPT_CERT:
221 cert = 1;
222 break;
223 case OPT_IN:
224 in = opt_arg();
225 break;
226 case OPT_TOKEN_IN:
227 token_in = 1;
228 break;
229 case OPT_OUT:
230 out = opt_arg();
231 break;
232 case OPT_TOKEN_OUT:
233 token_out = 1;
234 break;
235 case OPT_TEXT:
236 text = 1;
237 break;
238 case OPT_QUERYFILE:
239 queryfile = opt_arg();
240 break;
241 case OPT_PASSIN:
242 passin = opt_arg();
243 break;
244 case OPT_INKEY:
245 inkey = opt_arg();
246 break;
247 case OPT_SIGNER:
248 signer = opt_arg();
249 break;
250 case OPT_CHAIN:
251 chain = opt_arg();
252 break;
253 case OPT_CAPATH:
254 CApath = opt_arg();
255 break;
256 case OPT_CAFILE:
257 CAfile = opt_arg();
258 break;
259 case OPT_UNTRUSTED:
260 untrusted = opt_arg();
261 break;
262 case OPT_ENGINE:
263 engine = opt_arg();
264 break;
265 case OPT_MD:
266 if (!opt_md(opt_unknown(), &md))
267 goto opthelp;
268 break;
269 case OPT_V_CASES:
270 if (!opt_verify(o, vpm))
271 goto end;
272 vpmtouched++;
273 break;
274 }
275 }
276 if (mode == OPT_ERR || opt_num_rest() != 0)
277 goto opthelp;
278
279 if (mode == OPT_REPLY && passin &&
280 !app_passwd(passin, NULL, &password, NULL)) {
281 BIO_printf(bio_err, "Error getting password.\n");
282 goto end;
283 }
284
285 if ((conf = load_config_file(configfile)) == NULL)
286 goto end;
287 if (configfile != default_config_file && !app_load_modules(conf))
288 goto end;
289
290 /* Check parameter consistency and execute the appropriate function. */
291 if (mode == OPT_QUERY) {
292 if (vpmtouched)
293 goto opthelp;
294 if ((data != NULL) && (digest != NULL))
295 goto opthelp;
296 ret = !query_command(data, digest, md, policy, no_nonce, cert,
297 in, out, text);
298 } else if (mode == OPT_REPLY) {
299 if (vpmtouched)
300 goto opthelp;
301 if ((in != NULL) && (queryfile != NULL))
302 goto opthelp;
303 if (in == NULL) {
304 if ((conf == NULL) || (token_in != 0))
305 goto opthelp;
306 }
307 ret = !reply_command(conf, section, engine, queryfile,
308 password, inkey, md, signer, chain, policy,
309 in, token_in, out, token_out, text);
310
311 } else if (mode == OPT_VERIFY) {
312 if ((in == NULL) || !EXACTLY_ONE(queryfile, data, digest))
313 goto opthelp;
314 ret = !verify_command(data, digest, queryfile, in, token_in,
315 CApath, CAfile, untrusted,
316 vpmtouched ? vpm : NULL);
317 } else {
318 goto opthelp;
319 }
320
321 end:
322 X509_VERIFY_PARAM_free(vpm);
323 NCONF_free(conf);
324 OPENSSL_free(password);
325 return ret;
326}
327
328/*
329 * Configuration file-related function definitions.
330 */
331
332static ASN1_OBJECT *txt2obj(const char *oid)
333{
334 ASN1_OBJECT *oid_obj = NULL;
335
336 if ((oid_obj = OBJ_txt2obj(oid, 0)) == NULL)
337 BIO_printf(bio_err, "cannot convert %s to OID\n", oid);
338
339 return oid_obj;
340}
341
342static CONF *load_config_file(const char *configfile)
343{
344 CONF *conf = app_load_config(configfile);
345
346 if (conf != NULL) {
347 const char *p;
348
349 BIO_printf(bio_err, "Using configuration from %s\n", configfile);
350 p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
351 if (p != NULL) {
352 BIO *oid_bio = BIO_new_file(p, "r");
353 if (!oid_bio)
354 ERR_print_errors(bio_err);
355 else {
356 OBJ_create_objects(oid_bio);
357 BIO_free_all(oid_bio);
358 }
359 } else
360 ERR_clear_error();
361 if (!add_oid_section(conf))
362 ERR_print_errors(bio_err);
363 }
364 return conf;
365}
366
367/*
368 * Query-related method definitions.
369 */
370static int query_command(const char *data, const char *digest, const EVP_MD *md,
371 const char *policy, int no_nonce,
372 int cert, const char *in, const char *out, int text)
373{
374 int ret = 0;
375 TS_REQ *query = NULL;
376 BIO *in_bio = NULL;
377 BIO *data_bio = NULL;
378 BIO *out_bio = NULL;
379
380 /* Build query object. */
381 if (in != NULL) {
382 if ((in_bio = bio_open_default(in, 'r', FORMAT_ASN1)) == NULL)
383 goto end;
384 query = d2i_TS_REQ_bio(in_bio, NULL);
385 } else {
386 if (digest == NULL
387 && (data_bio = bio_open_default(data, 'r', FORMAT_ASN1)) == NULL)
388 goto end;
389 query = create_query(data_bio, digest, md, policy, no_nonce, cert);
390 }
391 if (query == NULL)
392 goto end;
393
394 if (text) {
395 if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL)
396 goto end;
397 if (!TS_REQ_print_bio(out_bio, query))
398 goto end;
399 } else {
400 if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL)
401 goto end;
402 if (!i2d_TS_REQ_bio(out_bio, query))
403 goto end;
404 }
405
406 ret = 1;
407
408 end:
409 ERR_print_errors(bio_err);
410 BIO_free_all(in_bio);
411 BIO_free_all(data_bio);
412 BIO_free_all(out_bio);
413 TS_REQ_free(query);
414 return ret;
415}
416
417static TS_REQ *create_query(BIO *data_bio, const char *digest, const EVP_MD *md,
418 const char *policy, int no_nonce, int cert)
419{
420 int ret = 0;
421 TS_REQ *ts_req = NULL;
422 int len;
423 TS_MSG_IMPRINT *msg_imprint = NULL;
424 X509_ALGOR *algo = NULL;
425 unsigned char *data = NULL;
426 ASN1_OBJECT *policy_obj = NULL;
427 ASN1_INTEGER *nonce_asn1 = NULL;
428
429 if (md == NULL && (md = EVP_get_digestbyname("sha1")) == NULL)
430 goto err;
431 if ((ts_req = TS_REQ_new()) == NULL)
432 goto err;
433 if (!TS_REQ_set_version(ts_req, 1))
434 goto err;
435 if ((msg_imprint = TS_MSG_IMPRINT_new()) == NULL)
436 goto err;
437 if ((algo = X509_ALGOR_new()) == NULL)
438 goto err;
439 if ((algo->algorithm = OBJ_nid2obj(EVP_MD_type(md))) == NULL)
440 goto err;
441 if ((algo->parameter = ASN1_TYPE_new()) == NULL)
442 goto err;
443 algo->parameter->type = V_ASN1_NULL;
444 if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo))
445 goto err;
446 if ((len = create_digest(data_bio, digest, md, &data)) == 0)
447 goto err;
448 if (!TS_MSG_IMPRINT_set_msg(msg_imprint, data, len))
449 goto err;
450 if (!TS_REQ_set_msg_imprint(ts_req, msg_imprint))
451 goto err;
452 if (policy && (policy_obj = txt2obj(policy)) == NULL)
453 goto err;
454 if (policy_obj && !TS_REQ_set_policy_id(ts_req, policy_obj))
455 goto err;
456
457 /* Setting nonce if requested. */
458 if (!no_nonce && (nonce_asn1 = create_nonce(NONCE_LENGTH)) == NULL)
459 goto err;
460 if (nonce_asn1 && !TS_REQ_set_nonce(ts_req, nonce_asn1))
461 goto err;
462 if (!TS_REQ_set_cert_req(ts_req, cert))
463 goto err;
464
465 ret = 1;
466 err:
467 if (!ret) {
468 TS_REQ_free(ts_req);
469 ts_req = NULL;
470 BIO_printf(bio_err, "could not create query\n");
471 ERR_print_errors(bio_err);
472 }
473 TS_MSG_IMPRINT_free(msg_imprint);
474 X509_ALGOR_free(algo);
475 OPENSSL_free(data);
476 ASN1_OBJECT_free(policy_obj);
477 ASN1_INTEGER_free(nonce_asn1);
478 return ts_req;
479}
480
481static int create_digest(BIO *input, const char *digest, const EVP_MD *md,
482 unsigned char **md_value)
483{
484 int md_value_len;
485 int rv = 0;
486 EVP_MD_CTX *md_ctx = NULL;
487
488 md_value_len = EVP_MD_size(md);
489 if (md_value_len < 0)
490 return 0;
491
492 if (input != NULL) {
493 unsigned char buffer[4096];
494 int length;
495
496 md_ctx = EVP_MD_CTX_new();
497 if (md_ctx == NULL)
498 return 0;
499 *md_value = app_malloc(md_value_len, "digest buffer");
500 if (!EVP_DigestInit(md_ctx, md))
501 goto err;
502 while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {
503 if (!EVP_DigestUpdate(md_ctx, buffer, length))
504 goto err;
505 }
506 if (!EVP_DigestFinal(md_ctx, *md_value, NULL))
507 goto err;
508 md_value_len = EVP_MD_size(md);
509 } else {
510 long digest_len;
511 *md_value = OPENSSL_hexstr2buf(digest, &digest_len);
512 if (!*md_value || md_value_len != digest_len) {
513 OPENSSL_free(*md_value);
514 *md_value = NULL;
515 BIO_printf(bio_err, "bad digest, %d bytes "
516 "must be specified\n", md_value_len);
517 return 0;
518 }
519 }
520 rv = md_value_len;
521 err:
522 EVP_MD_CTX_free(md_ctx);
523 return rv;
524}
525
526static ASN1_INTEGER *create_nonce(int bits)
527{
528 unsigned char buf[20];
529 ASN1_INTEGER *nonce = NULL;
530 int len = (bits - 1) / 8 + 1;
531 int i;
532
533 if (len > (int)sizeof(buf))
534 goto err;
535 if (RAND_bytes(buf, len) <= 0)
536 goto err;
537
538 /* Find the first non-zero byte and creating ASN1_INTEGER object. */
539 for (i = 0; i < len && !buf[i]; ++i)
540 continue;
541 if ((nonce = ASN1_INTEGER_new()) == NULL)
542 goto err;
543 OPENSSL_free(nonce->data);
544 nonce->length = len - i;
545 nonce->data = app_malloc(nonce->length + 1, "nonce buffer");
546 memcpy(nonce->data, buf + i, nonce->length);
547 return nonce;
548
549 err:
550 BIO_printf(bio_err, "could not create nonce\n");
551 ASN1_INTEGER_free(nonce);
552 return NULL;
553}
554
555/*
556 * Reply-related method definitions.
557 */
558
559static int reply_command(CONF *conf, const char *section, const char *engine,
560 const char *queryfile, const char *passin, const char *inkey,
561 const EVP_MD *md, const char *signer, const char *chain,
562 const char *policy, const char *in, int token_in,
563 const char *out, int token_out, int text)
564{
565 int ret = 0;
566 TS_RESP *response = NULL;
567 BIO *in_bio = NULL;
568 BIO *query_bio = NULL;
569 BIO *inkey_bio = NULL;
570 BIO *signer_bio = NULL;
571 BIO *out_bio = NULL;
572
573 if (in != NULL) {
574 if ((in_bio = BIO_new_file(in, "rb")) == NULL)
575 goto end;
576 if (token_in) {
577 response = read_PKCS7(in_bio);
578 } else {
579 response = d2i_TS_RESP_bio(in_bio, NULL);
580 }
581 } else {
582 response = create_response(conf, section, engine, queryfile,
583 passin, inkey, md, signer, chain, policy);
584 if (response != NULL)
585 BIO_printf(bio_err, "Response has been generated.\n");
586 else
587 BIO_printf(bio_err, "Response is not generated.\n");
588 }
589 if (response == NULL)
590 goto end;
591
592 /* Write response. */
593 if (text) {
594 if ((out_bio = bio_open_default(out, 'w', FORMAT_TEXT)) == NULL)
595 goto end;
596 if (token_out) {
597 TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response);
598 if (!TS_TST_INFO_print_bio(out_bio, tst_info))
599 goto end;
600 } else {
601 if (!TS_RESP_print_bio(out_bio, response))
602 goto end;
603 }
604 } else {
605 if ((out_bio = bio_open_default(out, 'w', FORMAT_ASN1)) == NULL)
606 goto end;
607 if (token_out) {
608 PKCS7 *token = TS_RESP_get_token(response);
609 if (!i2d_PKCS7_bio(out_bio, token))
610 goto end;
611 } else {
612 if (!i2d_TS_RESP_bio(out_bio, response))
613 goto end;
614 }
615 }
616
617 ret = 1;
618
619 end:
620 ERR_print_errors(bio_err);
621 BIO_free_all(in_bio);
622 BIO_free_all(query_bio);
623 BIO_free_all(inkey_bio);
624 BIO_free_all(signer_bio);
625 BIO_free_all(out_bio);
626 TS_RESP_free(response);
627 return ret;
628}
629
630/* Reads a PKCS7 token and adds default 'granted' status info to it. */
631static TS_RESP *read_PKCS7(BIO *in_bio)
632{
633 int ret = 0;
634 PKCS7 *token = NULL;
635 TS_TST_INFO *tst_info = NULL;
636 TS_RESP *resp = NULL;
637 TS_STATUS_INFO *si = NULL;
638
639 if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
640 goto end;
641 if ((tst_info = PKCS7_to_TS_TST_INFO(token)) == NULL)
642 goto end;
643 if ((resp = TS_RESP_new()) == NULL)
644 goto end;
645 if ((si = TS_STATUS_INFO_new()) == NULL)
646 goto end;
647 if (!TS_STATUS_INFO_set_status(si, TS_STATUS_GRANTED))
648 goto end;
649 if (!TS_RESP_set_status_info(resp, si))
650 goto end;
651 TS_RESP_set_tst_info(resp, token, tst_info);
652 token = NULL; /* Ownership is lost. */
653 tst_info = NULL; /* Ownership is lost. */
654 ret = 1;
655
656 end:
657 PKCS7_free(token);
658 TS_TST_INFO_free(tst_info);
659 if (!ret) {
660 TS_RESP_free(resp);
661 resp = NULL;
662 }
663 TS_STATUS_INFO_free(si);
664 return resp;
665}
666
667static TS_RESP *create_response(CONF *conf, const char *section, const char *engine,
668 const char *queryfile, const char *passin,
669 const char *inkey, const EVP_MD *md, const char *signer,
670 const char *chain, const char *policy)
671{
672 int ret = 0;
673 TS_RESP *response = NULL;
674 BIO *query_bio = NULL;
675 TS_RESP_CTX *resp_ctx = NULL;
676
677 if ((query_bio = BIO_new_file(queryfile, "rb")) == NULL)
678 goto end;
679 if ((section = TS_CONF_get_tsa_section(conf, section)) == NULL)
680 goto end;
681 if ((resp_ctx = TS_RESP_CTX_new()) == NULL)
682 goto end;
683 if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx))
684 goto end;
685# ifndef OPENSSL_NO_ENGINE
686 if (!TS_CONF_set_crypto_device(conf, section, engine))
687 goto end;
688# endif
689 if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))
690 goto end;
691 if (!TS_CONF_set_certs(conf, section, chain, resp_ctx))
692 goto end;
693 if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx))
694 goto end;
695
696 if (md) {
697 if (!TS_RESP_CTX_set_signer_digest(resp_ctx, md))
698 goto end;
699 } else if (!TS_CONF_set_signer_digest(conf, section, NULL, resp_ctx)) {
700 goto end;
701 }
702
703 if (!TS_CONF_set_ess_cert_id_digest(conf, section, resp_ctx))
704 goto end;
705 if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx))
706 goto end;
707 if (!TS_CONF_set_policies(conf, section, resp_ctx))
708 goto end;
709 if (!TS_CONF_set_digests(conf, section, resp_ctx))
710 goto end;
711 if (!TS_CONF_set_accuracy(conf, section, resp_ctx))
712 goto end;
713 if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx))
714 goto end;
715 if (!TS_CONF_set_ordering(conf, section, resp_ctx))
716 goto end;
717 if (!TS_CONF_set_tsa_name(conf, section, resp_ctx))
718 goto end;
719 if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx))
720 goto end;
721 if ((response = TS_RESP_create_response(resp_ctx, query_bio)) == NULL)
722 goto end;
723 ret = 1;
724
725 end:
726 if (!ret) {
727 TS_RESP_free(response);
728 response = NULL;
729 }
730 TS_RESP_CTX_free(resp_ctx);
731 BIO_free_all(query_bio);
732 return response;
733}
734
735static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data)
736{
737 const char *serial_file = (const char *)data;
738 ASN1_INTEGER *serial = next_serial(serial_file);
739
740 if (serial == NULL) {
741 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
742 "Error during serial number "
743 "generation.");
744 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_ADD_INFO_NOT_AVAILABLE);
745 } else {
746 save_ts_serial(serial_file, serial);
747 }
748
749 return serial;
750}
751
752static ASN1_INTEGER *next_serial(const char *serialfile)
753{
754 int ret = 0;
755 BIO *in = NULL;
756 ASN1_INTEGER *serial = NULL;
757 BIGNUM *bn = NULL;
758
759 if ((serial = ASN1_INTEGER_new()) == NULL)
760 goto err;
761
762 if ((in = BIO_new_file(serialfile, "r")) == NULL) {
763 ERR_clear_error();
764 BIO_printf(bio_err, "Warning: could not open file %s for "
765 "reading, using serial number: 1\n", serialfile);
766 if (!ASN1_INTEGER_set(serial, 1))
767 goto err;
768 } else {
769 char buf[1024];
770 if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {
771 BIO_printf(bio_err, "unable to load number from %s\n",
772 serialfile);
773 goto err;
774 }
775 if ((bn = ASN1_INTEGER_to_BN(serial, NULL)) == NULL)
776 goto err;
777 ASN1_INTEGER_free(serial);
778 serial = NULL;
779 if (!BN_add_word(bn, 1))
780 goto err;
781 if ((serial = BN_to_ASN1_INTEGER(bn, NULL)) == NULL)
782 goto err;
783 }
784 ret = 1;
785
786 err:
787 if (!ret) {
788 ASN1_INTEGER_free(serial);
789 serial = NULL;
790 }
791 BIO_free_all(in);
792 BN_free(bn);
793 return serial;
794}
795
796static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial)
797{
798 int ret = 0;
799 BIO *out = NULL;
800
801 if ((out = BIO_new_file(serialfile, "w")) == NULL)
802 goto err;
803 if (i2a_ASN1_INTEGER(out, serial) <= 0)
804 goto err;
805 if (BIO_puts(out, "\n") <= 0)
806 goto err;
807 ret = 1;
808 err:
809 if (!ret)
810 BIO_printf(bio_err, "could not save serial number to %s\n",
811 serialfile);
812 BIO_free_all(out);
813 return ret;
814}
815
816
817/*
818 * Verify-related method definitions.
819 */
820
821static int verify_command(const char *data, const char *digest, const char *queryfile,
822 const char *in, int token_in,
823 const char *CApath, const char *CAfile, const char *untrusted,
824 X509_VERIFY_PARAM *vpm)
825{
826 BIO *in_bio = NULL;
827 PKCS7 *token = NULL;
828 TS_RESP *response = NULL;
829 TS_VERIFY_CTX *verify_ctx = NULL;
830 int ret = 0;
831
832 if ((in_bio = BIO_new_file(in, "rb")) == NULL)
833 goto end;
834 if (token_in) {
835 if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
836 goto end;
837 } else {
838 if ((response = d2i_TS_RESP_bio(in_bio, NULL)) == NULL)
839 goto end;
840 }
841
842 if ((verify_ctx = create_verify_ctx(data, digest, queryfile,
843 CApath, CAfile, untrusted,
844 vpm)) == NULL)
845 goto end;
846
847 ret = token_in
848 ? TS_RESP_verify_token(verify_ctx, token)
849 : TS_RESP_verify_response(verify_ctx, response);
850
851 end:
852 printf("Verification: ");
853 if (ret)
854 printf("OK\n");
855 else {
856 printf("FAILED\n");
857 ERR_print_errors(bio_err);
858 }
859
860 BIO_free_all(in_bio);
861 PKCS7_free(token);
862 TS_RESP_free(response);
863 TS_VERIFY_CTX_free(verify_ctx);
864 return ret;
865}
866
867static TS_VERIFY_CTX *create_verify_ctx(const char *data, const char *digest,
868 const char *queryfile,
869 const char *CApath, const char *CAfile,
870 const char *untrusted,
871 X509_VERIFY_PARAM *vpm)
872{
873 TS_VERIFY_CTX *ctx = NULL;
874 BIO *input = NULL;
875 TS_REQ *request = NULL;
876 int ret = 0;
877 int f = 0;
878
879 if (data != NULL || digest != NULL) {
880 if ((ctx = TS_VERIFY_CTX_new()) == NULL)
881 goto err;
882 f = TS_VFY_VERSION | TS_VFY_SIGNER;
883 if (data != NULL) {
884 BIO *out = NULL;
885
886 f |= TS_VFY_DATA;
887 if ((out = BIO_new_file(data, "rb")) == NULL)
888 goto err;
889 if (TS_VERIFY_CTX_set_data(ctx, out) == NULL) {
890 BIO_free_all(out);
891 goto err;
892 }
893 } else if (digest != NULL) {
894 long imprint_len;
895 unsigned char *hexstr = OPENSSL_hexstr2buf(digest, &imprint_len);
896 f |= TS_VFY_IMPRINT;
897 if (TS_VERIFY_CTX_set_imprint(ctx, hexstr, imprint_len) == NULL) {
898 BIO_printf(bio_err, "invalid digest string\n");
899 goto err;
900 }
901 }
902
903 } else if (queryfile != NULL) {
904 if ((input = BIO_new_file(queryfile, "rb")) == NULL)
905 goto err;
906 if ((request = d2i_TS_REQ_bio(input, NULL)) == NULL)
907 goto err;
908 if ((ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)) == NULL)
909 goto err;
910 } else {
911 return NULL;
912 }
913
914 /* Add the signature verification flag and arguments. */
915 TS_VERIFY_CTX_add_flags(ctx, f | TS_VFY_SIGNATURE);
916
917 /* Initialising the X509_STORE object. */
918 if (TS_VERIFY_CTX_set_store(ctx, create_cert_store(CApath, CAfile, vpm))
919 == NULL)
920 goto err;
921
922 /* Loading untrusted certificates. */
923 if (untrusted
924 && TS_VERIFY_CTS_set_certs(ctx, TS_CONF_load_certs(untrusted)) == NULL)
925 goto err;
926 ret = 1;
927
928 err:
929 if (!ret) {
930 TS_VERIFY_CTX_free(ctx);
931 ctx = NULL;
932 }
933 BIO_free_all(input);
934 TS_REQ_free(request);
935 return ctx;
936}
937
938static X509_STORE *create_cert_store(const char *CApath, const char *CAfile,
939 X509_VERIFY_PARAM *vpm)
940{
941 X509_STORE *cert_ctx = NULL;
942 X509_LOOKUP *lookup = NULL;
943 int i;
944
945 cert_ctx = X509_STORE_new();
946 X509_STORE_set_verify_cb(cert_ctx, verify_cb);
947 if (CApath != NULL) {
948 lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir());
949 if (lookup == NULL) {
950 BIO_printf(bio_err, "memory allocation failure\n");
951 goto err;
952 }
953 i = X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM);
954 if (!i) {
955 BIO_printf(bio_err, "Error loading directory %s\n", CApath);
956 goto err;
957 }
958 }
959
960 if (CAfile != NULL) {
961 lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
962 if (lookup == NULL) {
963 BIO_printf(bio_err, "memory allocation failure\n");
964 goto err;
965 }
966 i = X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM);
967 if (!i) {
968 BIO_printf(bio_err, "Error loading file %s\n", CAfile);
969 goto err;
970 }
971 }
972
973 if (vpm != NULL)
974 X509_STORE_set1_param(cert_ctx, vpm);
975
976 return cert_ctx;
977
978 err:
979 X509_STORE_free(cert_ctx);
980 return NULL;
981}
982
983static int verify_cb(int ok, X509_STORE_CTX *ctx)
984{
985 return ok;
986}
987#endif /* ndef OPENSSL_NO_TS */
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