Annotation of src/usr.bin/openssl/ts.c, Revision 1.26
1.26 ! tb 1: /* $OpenBSD: ts.c,v 1.25 2022/11/11 17:07:39 joshua Exp $ */
1.1 jsing 2: /* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
3: * project 2002.
4: */
5: /* ====================================================================
6: * Copyright (c) 2001 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:
59: #include <stdio.h>
60: #include <stdlib.h>
61: #include <string.h>
62:
63: #include "apps.h"
64:
65: #include <openssl/bio.h>
66: #include <openssl/bn.h>
67: #include <openssl/err.h>
68: #include <openssl/pem.h>
69: #include <openssl/ts.h>
70:
71: /* Length of the nonce of the request in bits (must be a multiple of 8). */
72: #define NONCE_LENGTH 64
73:
74: /* Macro definitions for the configuration file. */
75: #define ENV_OID_FILE "oid_file"
76:
77: /* Local function declarations. */
78:
79: static ASN1_OBJECT *txt2obj(const char *oid);
80: static CONF *load_config_file(const char *configfile);
81:
82: /* Query related functions. */
1.20 inoguchi 83: static int query_command(const char *data, char *digest, const EVP_MD *md,
84: const char *policy, int no_nonce, int cert, const char *in, const char *out,
85: int text);
1.1 jsing 86: static BIO *BIO_open_with_default(const char *file, const char *mode,
1.19 inoguchi 87: FILE *default_fp);
88: static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
1.1 jsing 89: const char *policy, int no_nonce, int cert);
1.20 inoguchi 90: static int create_digest(BIO *input, char *digest, const EVP_MD *md,
91: unsigned char **md_value);
1.1 jsing 92: static ASN1_INTEGER *create_nonce(int bits);
93:
94: /* Reply related functions. */
1.20 inoguchi 95: static int reply_command(CONF *conf, char *section, char *queryfile,
96: char *passin, char *inkey, char *signer, char *chain, const char *policy,
97: char *in, int token_in, char *out, int token_out, int text);
1.19 inoguchi 98: static TS_RESP *read_PKCS7(BIO *in_bio);
99: static TS_RESP *create_response(CONF *conf, const char *section,
1.20 inoguchi 100: char *queryfile, char *passin, char *inkey, char *signer, char *chain,
101: const char *policy);
1.19 inoguchi 102: static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data);
1.1 jsing 103: static ASN1_INTEGER *next_serial(const char *serialfile);
1.19 inoguchi 104: static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial);
1.1 jsing 105:
106: /* Verify related functions. */
1.20 inoguchi 107: static int verify_command(char *data, char *digest, char *queryfile, char *in,
108: int token_in, char *ca_path, char *ca_file, char *untrusted);
1.1 jsing 109: static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
1.20 inoguchi 110: char *queryfile, char *ca_path, char *ca_file, char *untrusted);
1.1 jsing 111: static X509_STORE *create_cert_store(char *ca_path, char *ca_file);
1.19 inoguchi 112: static int verify_cb(int ok, X509_STORE_CTX *ctx);
1.1 jsing 113:
1.18 inoguchi 114: enum mode {
115: CMD_NONE, CMD_QUERY, CMD_REPLY, CMD_VERIFY
116: };
117:
118: static struct {
119: char *ca_file;
120: char *ca_path;
121: int cert;
122: char *chain;
123: char *configfile;
124: char *data;
125: char *digest;
126: char *in;
127: char *inkey;
128: const EVP_MD *md;
129: int mode;
130: int no_nonce;
131: char *out;
132: char *passin;
133: char *policy;
134: char *queryfile;
135: char *section;
136: char *signer;
137: int text;
138: int token_in;
139: int token_out;
140: char *untrusted;
1.26 ! tb 141: } cfg;
1.18 inoguchi 142:
143: static int
144: ts_opt_md(int argc, char **argv, int *argsused)
145: {
146: char *name = argv[0];
147:
148: if (*name++ != '-')
149: return (1);
150:
1.26 ! tb 151: if ((cfg.md = EVP_get_digestbyname(name)) == NULL)
1.18 inoguchi 152: return (1);
153:
154: *argsused = 1;
155: return (0);
156: }
157:
158: static int
159: ts_opt_query(void)
160: {
1.26 ! tb 161: if (cfg.mode != CMD_NONE)
1.18 inoguchi 162: return (1);
1.26 ! tb 163: cfg.mode = CMD_QUERY;
1.18 inoguchi 164: return (0);
165: }
166:
167: static int
168: ts_opt_reply(void)
169: {
1.26 ! tb 170: if (cfg.mode != CMD_NONE)
1.18 inoguchi 171: return (1);
1.26 ! tb 172: cfg.mode = CMD_REPLY;
1.18 inoguchi 173: return (0);
174: }
175:
176: static int
177: ts_opt_verify(void)
178: {
1.26 ! tb 179: if (cfg.mode != CMD_NONE)
1.18 inoguchi 180: return (1);
1.26 ! tb 181: cfg.mode = CMD_VERIFY;
1.18 inoguchi 182: return (0);
183: }
184:
185: static const struct option ts_options[] = {
186: {
187: .name = "CAfile",
188: .argname = "file",
189: .desc = "Certificate Authority file",
190: .type = OPTION_ARG,
1.26 ! tb 191: .opt.arg = &cfg.ca_file,
1.18 inoguchi 192: },
193: {
194: .name = "CApath",
195: .argname = "path",
196: .desc = "Certificate Authority path",
197: .type = OPTION_ARG,
1.26 ! tb 198: .opt.arg = &cfg.ca_path,
1.18 inoguchi 199: },
200: {
201: .name = "cert",
202: .desc = "Include signing certificate in the response",
203: .type = OPTION_FLAG,
1.26 ! tb 204: .opt.flag = &cfg.cert,
1.18 inoguchi 205: },
206: {
207: .name = "chain",
208: .argname = "file",
209: .desc = "PEM certificates that will be included in the response",
210: .type = OPTION_ARG,
1.26 ! tb 211: .opt.arg = &cfg.chain,
1.18 inoguchi 212: },
213: {
214: .name = "config",
215: .argname = "file",
216: .desc = "Specify an alternative configuration file",
217: .type = OPTION_ARG,
1.26 ! tb 218: .opt.arg = &cfg.configfile,
1.18 inoguchi 219: },
220: {
221: .name = "data",
222: .argname = "file",
223: .desc = "Data file for which the time stamp request needs to be created",
224: .type = OPTION_ARG,
1.26 ! tb 225: .opt.arg = &cfg.data,
1.18 inoguchi 226: },
227: {
228: .name = "digest",
229: .argname = "arg",
230: .desc = "Specify the message imprint explicitly without the data file",
231: .type = OPTION_ARG,
1.26 ! tb 232: .opt.arg = &cfg.digest,
1.18 inoguchi 233: },
234: {
235: .name = "in",
236: .argname = "file",
237: .desc = "Input file",
238: .type = OPTION_ARG,
1.26 ! tb 239: .opt.arg = &cfg.in,
1.18 inoguchi 240: },
241: {
242: .name = "inkey",
243: .argname = "file",
244: .desc = "Input key file",
245: .type = OPTION_ARG,
1.26 ! tb 246: .opt.arg = &cfg.inkey,
1.18 inoguchi 247: },
248: {
249: .name = "no_nonce",
250: .desc = "Specify no nonce in the request",
251: .type = OPTION_FLAG,
1.26 ! tb 252: .opt.flag = &cfg.no_nonce,
1.18 inoguchi 253: },
254: {
255: .name = "out",
256: .argname = "file",
257: .desc = "Output file",
258: .type = OPTION_ARG,
1.26 ! tb 259: .opt.arg = &cfg.out,
1.18 inoguchi 260: },
261: {
262: .name = "passin",
263: .argname = "src",
264: .desc = "Private key password source",
265: .type = OPTION_ARG,
1.26 ! tb 266: .opt.arg = &cfg.passin,
1.18 inoguchi 267: },
268: {
269: .name = "policy",
270: .argname = "object_id",
271: .desc = "Policy for the TSA to use when creating the time stamp token",
272: .type = OPTION_ARG,
1.26 ! tb 273: .opt.arg = &cfg.policy,
1.18 inoguchi 274: },
275: {
276: .name = "query",
277: .desc = "Create and print a time stamp request",
278: .type = OPTION_FUNC,
279: .opt.func = ts_opt_query,
280: },
281: {
282: .name = "queryfile",
283: .argname = "file",
284: .desc = "File containing a DER-encoded time stamp request",
285: .type = OPTION_ARG,
1.26 ! tb 286: .opt.arg = &cfg.queryfile,
1.18 inoguchi 287: },
288: {
289: .name = "reply",
290: .desc = "Create a time stamp response",
291: .type = OPTION_FUNC,
292: .opt.func = ts_opt_reply,
293: },
294: {
295: .name = "section",
296: .argname = "arg",
297: .desc = "TSA section containing the settings for response generation",
298: .type = OPTION_ARG,
1.26 ! tb 299: .opt.arg = &cfg.section,
1.18 inoguchi 300: },
301: {
302: .name = "signer",
303: .argname = "file",
304: .desc = "Signer certificate file",
305: .type = OPTION_ARG,
1.26 ! tb 306: .opt.arg = &cfg.signer,
1.18 inoguchi 307: },
308: {
309: .name = "text",
310: .desc = "Output in human-readable text format",
311: .type = OPTION_FLAG,
1.26 ! tb 312: .opt.flag = &cfg.text,
1.18 inoguchi 313: },
314: {
315: .name = "token_in",
316: .desc = "Input is a DER-encoded time stamp token",
317: .type = OPTION_FLAG,
1.26 ! tb 318: .opt.flag = &cfg.token_in,
1.18 inoguchi 319: },
320: {
321: .name = "token_out",
322: .desc = "Output is a DER-encoded time stamp token",
323: .type = OPTION_FLAG,
1.26 ! tb 324: .opt.flag = &cfg.token_out,
1.18 inoguchi 325: },
326: {
327: .name = "untrusted",
328: .argname = "file",
329: .desc = "File containing untrusted certificates",
330: .type = OPTION_ARG,
1.26 ! tb 331: .opt.arg = &cfg.untrusted,
1.18 inoguchi 332: },
333: {
334: .name = "verify",
335: .desc = "Verify a time stamp response",
336: .type = OPTION_FUNC,
337: .opt.func = ts_opt_verify,
338: },
339: {
340: .name = NULL,
341: .desc = "",
342: .type = OPTION_ARGV_FUNC,
343: .opt.argvfunc = ts_opt_md,
344: },
345: { NULL },
346: };
347:
348: static void
349: ts_usage(void)
350: {
351: fprintf(stderr, "usage:\n"
352: "ts -query [-md4 | -md5 | -ripemd160 | -sha1] [-cert]\n"
353: " [-config configfile] [-data file_to_hash]\n"
354: " [-digest digest_bytes] [-in request.tsq] [-no_nonce]\n"
355: " [-out request.tsq] [-policy object_id] [-text]\n");
356: fprintf(stderr, "\n"
357: "ts -reply [-chain certs_file.pem] [-config configfile]\n"
358: " [-in response.tsr] [-inkey private.pem] [-out response.tsr]\n"
359: " [-passin arg] [-policy object_id] [-queryfile request.tsq]\n"
360: " [-section tsa_section] [-signer tsa_cert.pem] [-text]\n"
361: " [-token_in] [-token_out]\n");
362: fprintf(stderr, "\n"
363: "ts -verify [-CAfile trusted_certs.pem]\n"
364: " [-CApath trusted_cert_path] [-data file_to_hash]\n"
365: " [-digest digest_bytes] [-in response.tsr]\n"
366: " [-queryfile request.tsq] [-token_in]\n"
367: " [-untrusted cert_file.pem]\n");
368: fprintf(stderr, "\n");
369: options_usage(ts_options);
370: fprintf(stderr, "\n");
371: }
372:
1.1 jsing 373: int
374: ts_main(int argc, char **argv)
375: {
376: int ret = 1;
377: CONF *conf = NULL;
378: char *password = NULL; /* Password itself. */
1.11 doug 379:
1.25 joshua 380: if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
381: perror("pledge");
382: exit(1);
1.11 doug 383: }
1.1 jsing 384:
1.26 ! tb 385: memset(&cfg, 0, sizeof(cfg));
! 386: cfg.mode = CMD_NONE;
1.18 inoguchi 387:
388: if (options_parse(argc, argv, ts_options, NULL, NULL) != 0)
389: goto usage;
1.1 jsing 390:
391: /* Get the password if required. */
1.26 ! tb 392: if (cfg.mode == CMD_REPLY && cfg.passin != NULL &&
! 393: !app_passwd(bio_err, cfg.passin, NULL, &password, NULL)) {
1.1 jsing 394: BIO_printf(bio_err, "Error getting password.\n");
395: goto cleanup;
396: }
397: /*
398: * Check consistency of parameters and execute the appropriate
399: * function.
400: */
1.26 ! tb 401: switch (cfg.mode) {
1.1 jsing 402: case CMD_NONE:
403: goto usage;
404: case CMD_QUERY:
405: /*
406: * Data file and message imprint cannot be specified at the
407: * same time.
408: */
1.26 ! tb 409: ret = cfg.data != NULL && cfg.digest != NULL;
1.1 jsing 410: if (ret)
411: goto usage;
412: /* Load the config file for possible policy OIDs. */
1.26 ! tb 413: conf = load_config_file(cfg.configfile);
! 414: ret = !query_command(cfg.data, cfg.digest,
! 415: cfg.md, cfg.policy, cfg.no_nonce,
! 416: cfg.cert, cfg.in, cfg.out,
! 417: cfg.text);
1.1 jsing 418: break;
419: case CMD_REPLY:
1.26 ! tb 420: conf = load_config_file(cfg.configfile);
! 421: if (cfg.in == NULL) {
! 422: ret = !(cfg.queryfile != NULL && conf != NULL &&
! 423: !cfg.token_in);
1.1 jsing 424: if (ret)
425: goto usage;
426: } else {
427: /* 'in' and 'queryfile' are exclusive. */
1.26 ! tb 428: ret = !(cfg.queryfile == NULL);
1.1 jsing 429: if (ret)
430: goto usage;
431: }
432:
1.26 ! tb 433: ret = !reply_command(conf, cfg.section,
! 434: cfg.queryfile, password, cfg.inkey,
! 435: cfg.signer, cfg.chain, cfg.policy,
! 436: cfg.in, cfg.token_in, cfg.out,
! 437: cfg.token_out, cfg.text);
1.1 jsing 438: break;
439: case CMD_VERIFY:
1.26 ! tb 440: ret = !(((cfg.queryfile != NULL && cfg.data == NULL &&
! 441: cfg.digest == NULL) ||
! 442: (cfg.queryfile == NULL && cfg.data != NULL &&
! 443: cfg.digest == NULL) ||
! 444: (cfg.queryfile == NULL && cfg.data == NULL &&
! 445: cfg.digest != NULL)) &&
! 446: cfg.in != NULL);
1.1 jsing 447: if (ret)
448: goto usage;
449:
1.26 ! tb 450: ret = !verify_command(cfg.data, cfg.digest,
! 451: cfg.queryfile, cfg.in, cfg.token_in,
! 452: cfg.ca_path, cfg.ca_file, cfg.untrusted);
1.1 jsing 453: }
454:
455: goto cleanup;
456:
1.15 jsing 457: usage:
1.18 inoguchi 458: ts_usage();
1.1 jsing 459:
1.15 jsing 460: cleanup:
1.1 jsing 461: /* Clean up. */
462: NCONF_free(conf);
463: free(password);
464: OBJ_cleanup();
465:
466: return (ret);
467: }
468:
469: /*
470: * Configuration file-related function definitions.
471: */
472:
473: static ASN1_OBJECT *
474: txt2obj(const char *oid)
475: {
476: ASN1_OBJECT *oid_obj = NULL;
477:
1.21 inoguchi 478: if ((oid_obj = OBJ_txt2obj(oid, 0)) == NULL)
1.1 jsing 479: BIO_printf(bio_err, "cannot convert %s to OID\n", oid);
480:
481: return oid_obj;
482: }
483:
484: static CONF *
485: load_config_file(const char *configfile)
486: {
487: CONF *conf = NULL;
488: long errorline = -1;
489:
1.21 inoguchi 490: if (configfile == NULL)
1.1 jsing 491: configfile = getenv("OPENSSL_CONF");
492:
1.21 inoguchi 493: if (configfile != NULL &&
494: ((conf = NCONF_new(NULL)) == NULL ||
1.1 jsing 495: NCONF_load(conf, configfile, &errorline) <= 0)) {
496: if (errorline <= 0)
497: BIO_printf(bio_err, "error loading the config file "
498: "'%s'\n", configfile);
499: else
500: BIO_printf(bio_err, "error on line %ld of config file "
501: "'%s'\n", errorline, configfile);
502: }
503: if (conf != NULL) {
504: const char *p;
505:
506: BIO_printf(bio_err, "Using configuration from %s\n",
507: configfile);
508: p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
509: if (p != NULL) {
510: BIO *oid_bio = BIO_new_file(p, "r");
1.21 inoguchi 511: if (oid_bio == NULL)
1.1 jsing 512: ERR_print_errors(bio_err);
513: else {
514: OBJ_create_objects(oid_bio);
515: BIO_free_all(oid_bio);
516: }
517: } else
518: ERR_clear_error();
519: if (!add_oid_section(bio_err, conf))
520: ERR_print_errors(bio_err);
521: }
522: return conf;
523: }
524:
525: /*
526: * Query-related method definitions.
527: */
528:
529: static int
1.19 inoguchi 530: query_command(const char *data, char *digest, const EVP_MD *md,
1.20 inoguchi 531: const char *policy, int no_nonce, int cert, const char *in, const char *out,
532: int text)
1.1 jsing 533: {
534: int ret = 0;
535: TS_REQ *query = NULL;
536: BIO *in_bio = NULL;
537: BIO *data_bio = NULL;
538: BIO *out_bio = NULL;
539:
540: /* Build query object either from file or from scratch. */
541: if (in != NULL) {
542: if ((in_bio = BIO_new_file(in, "rb")) == NULL)
543: goto end;
544: query = d2i_TS_REQ_bio(in_bio, NULL);
545: } else {
546: /* Open the file if no explicit digest bytes were specified. */
1.21 inoguchi 547: if (digest == NULL &&
548: (data_bio = BIO_open_with_default(data, "rb", stdin)) == NULL)
1.1 jsing 549: goto end;
550: /* Creating the query object. */
551: query = create_query(data_bio, digest, md,
552: policy, no_nonce, cert);
553: /* Saving the random number generator state. */
554: }
555: if (query == NULL)
556: goto end;
557:
558: /* Write query either in ASN.1 or in text format. */
559: if ((out_bio = BIO_open_with_default(out, "wb", stdout)) == NULL)
560: goto end;
561: if (text) {
562: /* Text output. */
563: if (!TS_REQ_print_bio(out_bio, query))
564: goto end;
565: } else {
566: /* ASN.1 output. */
567: if (!i2d_TS_REQ_bio(out_bio, query))
568: goto end;
569: }
570:
571: ret = 1;
572:
1.15 jsing 573: end:
1.1 jsing 574: ERR_print_errors(bio_err);
575:
576: /* Clean up. */
577: BIO_free_all(in_bio);
578: BIO_free_all(data_bio);
579: BIO_free_all(out_bio);
580: TS_REQ_free(query);
581:
582: return ret;
583: }
584:
585: static BIO *
1.19 inoguchi 586: BIO_open_with_default(const char *file, const char *mode, FILE *default_fp)
1.1 jsing 587: {
588: return file == NULL ? BIO_new_fp(default_fp, BIO_NOCLOSE) :
589: BIO_new_file(file, mode);
590: }
591:
592: static TS_REQ *
1.20 inoguchi 593: create_query(BIO *data_bio, char *digest, const EVP_MD *md, const char *policy,
594: int no_nonce, int cert)
1.1 jsing 595: {
596: int ret = 0;
597: TS_REQ *ts_req = NULL;
598: int len;
599: TS_MSG_IMPRINT *msg_imprint = NULL;
600: X509_ALGOR *algo = NULL;
601: unsigned char *data = NULL;
602: ASN1_OBJECT *policy_obj = NULL;
603: ASN1_INTEGER *nonce_asn1 = NULL;
604:
605: /* Setting default message digest. */
1.21 inoguchi 606: if (md == NULL && (md = EVP_get_digestbyname("sha1")) == NULL)
1.1 jsing 607: goto err;
608:
609: /* Creating request object. */
1.21 inoguchi 610: if ((ts_req = TS_REQ_new()) == NULL)
1.1 jsing 611: goto err;
612:
613: /* Setting version. */
614: if (!TS_REQ_set_version(ts_req, 1))
615: goto err;
616:
617: /* Creating and adding MSG_IMPRINT object. */
1.21 inoguchi 618: if ((msg_imprint = TS_MSG_IMPRINT_new()) == NULL)
1.1 jsing 619: goto err;
620:
621: /* Adding algorithm. */
1.21 inoguchi 622: if ((algo = X509_ALGOR_new()) == NULL)
1.1 jsing 623: goto err;
1.21 inoguchi 624: if ((algo->algorithm = OBJ_nid2obj(EVP_MD_type(md))) == NULL)
1.1 jsing 625: goto err;
1.21 inoguchi 626: if ((algo->parameter = ASN1_TYPE_new()) == NULL)
1.1 jsing 627: goto err;
628: algo->parameter->type = V_ASN1_NULL;
629: if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo))
630: goto err;
631:
632: /* Adding message digest. */
633: if ((len = create_digest(data_bio, digest, md, &data)) == 0)
634: goto err;
635: if (!TS_MSG_IMPRINT_set_msg(msg_imprint, data, len))
636: goto err;
637:
638: if (!TS_REQ_set_msg_imprint(ts_req, msg_imprint))
639: goto err;
640:
641: /* Setting policy if requested. */
1.21 inoguchi 642: if (policy != NULL && (policy_obj = txt2obj(policy)) == NULL)
1.1 jsing 643: goto err;
1.21 inoguchi 644: if (policy_obj != NULL && !TS_REQ_set_policy_id(ts_req, policy_obj))
1.1 jsing 645: goto err;
646:
647: /* Setting nonce if requested. */
1.21 inoguchi 648: if (!no_nonce && (nonce_asn1 = create_nonce(NONCE_LENGTH)) == NULL)
1.1 jsing 649: goto err;
1.21 inoguchi 650: if (nonce_asn1 != NULL && !TS_REQ_set_nonce(ts_req, nonce_asn1))
1.1 jsing 651: goto err;
652:
653: /* Setting certificate request flag if requested. */
654: if (!TS_REQ_set_cert_req(ts_req, cert))
655: goto err;
656:
657: ret = 1;
658:
1.15 jsing 659: err:
1.1 jsing 660: if (!ret) {
661: TS_REQ_free(ts_req);
662: ts_req = NULL;
663: BIO_printf(bio_err, "could not create query\n");
664: }
665: TS_MSG_IMPRINT_free(msg_imprint);
666: X509_ALGOR_free(algo);
667: free(data);
668: ASN1_OBJECT_free(policy_obj);
669: ASN1_INTEGER_free(nonce_asn1);
670:
671: return ts_req;
672: }
673:
674: static int
1.19 inoguchi 675: create_digest(BIO *input, char *digest, const EVP_MD *md,
1.1 jsing 676: unsigned char **md_value)
677: {
678: int md_value_len;
1.23 inoguchi 679: EVP_MD_CTX *md_ctx = NULL;
1.1 jsing 680:
681: md_value_len = EVP_MD_size(md);
682: if (md_value_len < 0)
683: goto err;
1.23 inoguchi 684:
1.21 inoguchi 685: if (input != NULL) {
1.1 jsing 686: /* Digest must be computed from an input file. */
687: unsigned char buffer[4096];
688: int length;
689:
690: *md_value = malloc(md_value_len);
1.17 tb 691: if (*md_value == NULL)
1.1 jsing 692: goto err;
693:
1.16 tb 694: if ((md_ctx = EVP_MD_CTX_new()) == NULL)
695: goto err;
696:
1.23 inoguchi 697: if (!EVP_DigestInit(md_ctx, md))
698: goto err;
699:
1.1 jsing 700: while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {
1.23 inoguchi 701: if (!EVP_DigestUpdate(md_ctx, buffer, length))
702: goto err;
1.1 jsing 703: }
1.23 inoguchi 704:
705: if (!EVP_DigestFinal(md_ctx, *md_value, NULL))
706: goto err;
1.16 tb 707:
708: EVP_MD_CTX_free(md_ctx);
1.23 inoguchi 709: md_ctx = NULL;
710:
1.1 jsing 711: } else {
712: /* Digest bytes are specified with digest. */
713: long digest_len;
1.23 inoguchi 714:
1.1 jsing 715: *md_value = string_to_hex(digest, &digest_len);
1.21 inoguchi 716: if (*md_value == NULL || md_value_len != digest_len) {
1.1 jsing 717: free(*md_value);
718: *md_value = NULL;
719: BIO_printf(bio_err, "bad digest, %d bytes "
720: "must be specified\n", md_value_len);
721: goto err;
722: }
723: }
724:
725: return md_value_len;
1.23 inoguchi 726:
1.15 jsing 727: err:
1.23 inoguchi 728: EVP_MD_CTX_free(md_ctx);
1.1 jsing 729: return 0;
730: }
731:
732: static ASN1_INTEGER *
733: create_nonce(int bits)
734: {
735: unsigned char buf[20];
736: ASN1_INTEGER *nonce = NULL;
737: int len = (bits - 1) / 8 + 1;
738: int i;
739:
740: /* Generating random byte sequence. */
741: if (len > (int) sizeof(buf))
742: goto err;
1.3 jsing 743: arc4random_buf(buf, len);
1.1 jsing 744:
745: /* Find the first non-zero byte and creating ASN1_INTEGER object. */
746: for (i = 0; i < len && !buf[i]; ++i)
747: ;
1.21 inoguchi 748: if ((nonce = ASN1_INTEGER_new()) == NULL)
1.1 jsing 749: goto err;
750: free(nonce->data);
751: /* Allocate at least one byte. */
752: nonce->length = len - i;
1.21 inoguchi 753: if ((nonce->data = malloc(nonce->length + 1)) == NULL)
1.1 jsing 754: goto err;
755: memcpy(nonce->data, buf + i, nonce->length);
756:
757: return nonce;
758:
1.15 jsing 759: err:
1.1 jsing 760: BIO_printf(bio_err, "could not create nonce\n");
761: ASN1_INTEGER_free(nonce);
762: return NULL;
763: }
1.20 inoguchi 764:
1.1 jsing 765: /*
766: * Reply-related method definitions.
767: */
768:
769: static int
1.20 inoguchi 770: reply_command(CONF *conf, char *section, char *queryfile, char *passin,
771: char *inkey, char *signer, char *chain, const char *policy, char *in,
772: int token_in, char *out, int token_out, int text)
1.1 jsing 773: {
774: int ret = 0;
775: TS_RESP *response = NULL;
776: BIO *in_bio = NULL;
777: BIO *query_bio = NULL;
778: BIO *inkey_bio = NULL;
779: BIO *signer_bio = NULL;
780: BIO *out_bio = NULL;
781:
782: /* Build response object either from response or query. */
783: if (in != NULL) {
784: if ((in_bio = BIO_new_file(in, "rb")) == NULL)
785: goto end;
786: if (token_in) {
787: /*
788: * We have a ContentInfo (PKCS7) object, add
789: * 'granted' status info around it.
790: */
791: response = read_PKCS7(in_bio);
792: } else {
793: /* We have a ready-made TS_RESP object. */
794: response = d2i_TS_RESP_bio(in_bio, NULL);
795: }
796: } else {
1.21 inoguchi 797: response = create_response(conf, section, queryfile, passin,
798: inkey, signer, chain, policy);
799: if (response != NULL)
1.1 jsing 800: BIO_printf(bio_err, "Response has been generated.\n");
801: else
802: BIO_printf(bio_err, "Response is not generated.\n");
803: }
804: if (response == NULL)
805: goto end;
806:
807: /* Write response either in ASN.1 or text format. */
808: if ((out_bio = BIO_open_with_default(out, "wb", stdout)) == NULL)
809: goto end;
810: if (text) {
811: /* Text output. */
812: if (token_out) {
813: TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response);
814: if (!TS_TST_INFO_print_bio(out_bio, tst_info))
815: goto end;
816: } else {
817: if (!TS_RESP_print_bio(out_bio, response))
818: goto end;
819: }
820: } else {
821: /* ASN.1 DER output. */
822: if (token_out) {
823: PKCS7 *token = TS_RESP_get_token(response);
824: if (!i2d_PKCS7_bio(out_bio, token))
825: goto end;
826: } else {
827: if (!i2d_TS_RESP_bio(out_bio, response))
828: goto end;
829: }
830: }
831:
832: ret = 1;
833:
1.15 jsing 834: end:
1.1 jsing 835: ERR_print_errors(bio_err);
836:
837: /* Clean up. */
838: BIO_free_all(in_bio);
839: BIO_free_all(query_bio);
840: BIO_free_all(inkey_bio);
841: BIO_free_all(signer_bio);
842: BIO_free_all(out_bio);
843: TS_RESP_free(response);
844:
845: return ret;
846: }
847:
848: /* Reads a PKCS7 token and adds default 'granted' status info to it. */
849: static TS_RESP *
1.19 inoguchi 850: read_PKCS7(BIO *in_bio)
1.1 jsing 851: {
852: int ret = 0;
853: PKCS7 *token = NULL;
854: TS_TST_INFO *tst_info = NULL;
855: TS_RESP *resp = NULL;
856: TS_STATUS_INFO *si = NULL;
857:
858: /* Read PKCS7 object and extract the signed time stamp info. */
1.21 inoguchi 859: if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
1.1 jsing 860: goto end;
1.21 inoguchi 861: if ((tst_info = PKCS7_to_TS_TST_INFO(token)) == NULL)
1.1 jsing 862: goto end;
863:
864: /* Creating response object. */
1.21 inoguchi 865: if ((resp = TS_RESP_new()) == NULL)
1.1 jsing 866: goto end;
867:
868: /* Create granted status info. */
1.21 inoguchi 869: if ((si = TS_STATUS_INFO_new()) == NULL)
1.1 jsing 870: goto end;
1.24 tb 871: if (!TS_STATUS_INFO_set_status(si, TS_STATUS_GRANTED))
1.1 jsing 872: goto end;
873: if (!TS_RESP_set_status_info(resp, si))
874: goto end;
875:
876: /* Setting encapsulated token. */
877: TS_RESP_set_tst_info(resp, token, tst_info);
878: token = NULL; /* Ownership is lost. */
879: tst_info = NULL; /* Ownership is lost. */
880:
881: ret = 1;
1.15 jsing 882: end:
1.1 jsing 883: PKCS7_free(token);
884: TS_TST_INFO_free(tst_info);
885: if (!ret) {
886: TS_RESP_free(resp);
887: resp = NULL;
888: }
889: TS_STATUS_INFO_free(si);
890: return resp;
891: }
892:
893: static TS_RESP *
1.20 inoguchi 894: create_response(CONF *conf, const char *section, char *queryfile, char *passin,
895: char *inkey, char *signer, char *chain, const char *policy)
1.1 jsing 896: {
897: int ret = 0;
898: TS_RESP *response = NULL;
899: BIO *query_bio = NULL;
900: TS_RESP_CTX *resp_ctx = NULL;
901:
1.21 inoguchi 902: if ((query_bio = BIO_new_file(queryfile, "rb")) == NULL)
1.1 jsing 903: goto end;
904:
905: /* Getting TSA configuration section. */
1.21 inoguchi 906: if ((section = TS_CONF_get_tsa_section(conf, section)) == NULL)
1.1 jsing 907: goto end;
908:
909: /* Setting up response generation context. */
1.21 inoguchi 910: if ((resp_ctx = TS_RESP_CTX_new()) == NULL)
1.1 jsing 911: goto end;
912:
913: /* Setting serial number provider callback. */
914: if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx))
915: goto end;
916:
917: /* Setting TSA signer certificate. */
918: if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))
919: goto end;
920:
921: /* Setting TSA signer certificate chain. */
922: if (!TS_CONF_set_certs(conf, section, chain, resp_ctx))
923: goto end;
924:
925: /* Setting TSA signer private key. */
926: if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx))
927: goto end;
928:
929: /* Setting default policy OID. */
930: if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx))
931: goto end;
932:
933: /* Setting acceptable policy OIDs. */
934: if (!TS_CONF_set_policies(conf, section, resp_ctx))
935: goto end;
936:
937: /* Setting the acceptable one-way hash algorithms. */
938: if (!TS_CONF_set_digests(conf, section, resp_ctx))
939: goto end;
940:
941: /* Setting guaranteed time stamp accuracy. */
942: if (!TS_CONF_set_accuracy(conf, section, resp_ctx))
943: goto end;
944:
945: /* Setting the precision of the time. */
946: if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx))
947: goto end;
948:
949: /* Setting the ordering flaf if requested. */
950: if (!TS_CONF_set_ordering(conf, section, resp_ctx))
951: goto end;
952:
953: /* Setting the TSA name required flag if requested. */
954: if (!TS_CONF_set_tsa_name(conf, section, resp_ctx))
955: goto end;
956:
957: /* Setting the ESS cert id chain flag if requested. */
958: if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx))
959: goto end;
960:
961: /* Creating the response. */
1.21 inoguchi 962: if ((response = TS_RESP_create_response(resp_ctx, query_bio)) == NULL)
1.1 jsing 963: goto end;
964:
965: ret = 1;
1.15 jsing 966: end:
1.1 jsing 967: if (!ret) {
968: TS_RESP_free(response);
969: response = NULL;
970: }
971: TS_RESP_CTX_free(resp_ctx);
972: BIO_free_all(query_bio);
973:
974: return response;
975: }
976:
977: static ASN1_INTEGER *
1.19 inoguchi 978: serial_cb(TS_RESP_CTX *ctx, void *data)
1.1 jsing 979: {
980: const char *serial_file = (const char *) data;
981: ASN1_INTEGER *serial = next_serial(serial_file);
982:
1.21 inoguchi 983: if (serial == NULL) {
1.1 jsing 984: TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
985: "Error during serial number "
986: "generation.");
987: TS_RESP_CTX_add_failure_info(ctx,
988: TS_INFO_ADD_INFO_NOT_AVAILABLE);
989: } else
990: save_ts_serial(serial_file, serial);
991:
992: return serial;
993: }
994:
995: static ASN1_INTEGER *
996: next_serial(const char *serialfile)
997: {
998: int ret = 0;
999: BIO *in = NULL;
1000: ASN1_INTEGER *serial = NULL;
1001: BIGNUM *bn = NULL;
1002:
1.21 inoguchi 1003: if ((serial = ASN1_INTEGER_new()) == NULL)
1.1 jsing 1004: goto err;
1005:
1.21 inoguchi 1006: if ((in = BIO_new_file(serialfile, "r")) == NULL) {
1.1 jsing 1007: ERR_clear_error();
1008: BIO_printf(bio_err, "Warning: could not open file %s for "
1009: "reading, using serial number: 1\n", serialfile);
1010: if (!ASN1_INTEGER_set(serial, 1))
1011: goto err;
1012: } else {
1013: char buf[1024];
1014: if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {
1015: BIO_printf(bio_err, "unable to load number from %s\n",
1016: serialfile);
1017: goto err;
1018: }
1.21 inoguchi 1019: if ((bn = ASN1_INTEGER_to_BN(serial, NULL)) == NULL)
1.1 jsing 1020: goto err;
1021: ASN1_INTEGER_free(serial);
1022: serial = NULL;
1023: if (!BN_add_word(bn, 1))
1024: goto err;
1.21 inoguchi 1025: if ((serial = BN_to_ASN1_INTEGER(bn, NULL)) == NULL)
1.1 jsing 1026: goto err;
1027: }
1028: ret = 1;
1.15 jsing 1029: err:
1.1 jsing 1030: if (!ret) {
1031: ASN1_INTEGER_free(serial);
1032: serial = NULL;
1033: }
1034: BIO_free_all(in);
1035: BN_free(bn);
1036: return serial;
1037: }
1038:
1039: static int
1.19 inoguchi 1040: save_ts_serial(const char *serialfile, ASN1_INTEGER *serial)
1.1 jsing 1041: {
1042: int ret = 0;
1043: BIO *out = NULL;
1044:
1.21 inoguchi 1045: if ((out = BIO_new_file(serialfile, "w")) == NULL)
1.1 jsing 1046: goto err;
1047: if (i2a_ASN1_INTEGER(out, serial) <= 0)
1048: goto err;
1049: if (BIO_puts(out, "\n") <= 0)
1050: goto err;
1051: ret = 1;
1.15 jsing 1052: err:
1.1 jsing 1053: if (!ret)
1054: BIO_printf(bio_err, "could not save serial number to %s\n",
1055: serialfile);
1056: BIO_free_all(out);
1057: return ret;
1058: }
1059:
1060: /*
1061: * Verify-related method definitions.
1062: */
1063:
1064: static int
1065: verify_command(char *data, char *digest, char *queryfile, char *in,
1066: int token_in, char *ca_path, char *ca_file, char *untrusted)
1067: {
1068: BIO *in_bio = NULL;
1069: PKCS7 *token = NULL;
1070: TS_RESP *response = NULL;
1071: TS_VERIFY_CTX *verify_ctx = NULL;
1072: int ret = 0;
1073:
1074: /* Decode the token (PKCS7) or response (TS_RESP) files. */
1.21 inoguchi 1075: if ((in_bio = BIO_new_file(in, "rb")) == NULL)
1.1 jsing 1076: goto end;
1077: if (token_in) {
1.21 inoguchi 1078: if ((token = d2i_PKCS7_bio(in_bio, NULL)) == NULL)
1.1 jsing 1079: goto end;
1080: } else {
1.21 inoguchi 1081: if ((response = d2i_TS_RESP_bio(in_bio, NULL)) == NULL)
1.1 jsing 1082: goto end;
1083: }
1084:
1.21 inoguchi 1085: if ((verify_ctx = create_verify_ctx(data, digest, queryfile,
1086: ca_path, ca_file, untrusted)) == NULL)
1.1 jsing 1087: goto end;
1088:
1089: /* Checking the token or response against the request. */
1090: ret = token_in ?
1091: TS_RESP_verify_token(verify_ctx, token) :
1092: TS_RESP_verify_response(verify_ctx, response);
1093:
1.15 jsing 1094: end:
1.1 jsing 1095: printf("Verification: ");
1096: if (ret)
1097: printf("OK\n");
1098: else {
1099: printf("FAILED\n");
1100: /* Print errors, if there are any. */
1101: ERR_print_errors(bio_err);
1102: }
1103:
1104: /* Clean up. */
1105: BIO_free_all(in_bio);
1106: PKCS7_free(token);
1107: TS_RESP_free(response);
1108: TS_VERIFY_CTX_free(verify_ctx);
1109: return ret;
1110: }
1111:
1112: static TS_VERIFY_CTX *
1113: create_verify_ctx(char *data, char *digest, char *queryfile, char *ca_path,
1114: char *ca_file, char *untrusted)
1115: {
1116: TS_VERIFY_CTX *ctx = NULL;
1117: BIO *input = NULL;
1118: TS_REQ *request = NULL;
1.24 tb 1119: X509_STORE *store;
1120: STACK_OF(X509) *certs;
1.1 jsing 1121: int ret = 0;
1122:
1123: if (data != NULL || digest != NULL) {
1.21 inoguchi 1124: if ((ctx = TS_VERIFY_CTX_new()) == NULL)
1.1 jsing 1125: goto err;
1.24 tb 1126: TS_VERIFY_CTX_set_flags(ctx, TS_VFY_VERSION | TS_VFY_SIGNER);
1.1 jsing 1127: if (data != NULL) {
1.24 tb 1128: BIO *data_bio;
1129:
1130: TS_VERIFY_CTX_add_flags(ctx, TS_VFY_DATA);
1131: if ((data_bio = BIO_new_file(data, "rb")) == NULL)
1.1 jsing 1132: goto err;
1.24 tb 1133: TS_VERIFY_CTX_set_data(ctx, data_bio);
1.1 jsing 1134: } else if (digest != NULL) {
1.24 tb 1135: unsigned char *imprint;
1.1 jsing 1136: long imprint_len;
1.24 tb 1137:
1138: TS_VERIFY_CTX_add_flags(ctx, TS_VFY_IMPRINT);
1139: if ((imprint = string_to_hex(digest,
1140: &imprint_len)) == NULL) {
1.1 jsing 1141: BIO_printf(bio_err, "invalid digest string\n");
1142: goto err;
1143: }
1.24 tb 1144: TS_VERIFY_CTX_set_imprint(ctx, imprint, imprint_len);
1.1 jsing 1145: }
1146: } else if (queryfile != NULL) {
1147: /*
1148: * The request has just to be read, decoded and converted to
1149: * a verify context object.
1150: */
1.21 inoguchi 1151: if ((input = BIO_new_file(queryfile, "rb")) == NULL)
1.1 jsing 1152: goto err;
1.21 inoguchi 1153: if ((request = d2i_TS_REQ_bio(input, NULL)) == NULL)
1.1 jsing 1154: goto err;
1.21 inoguchi 1155: if ((ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)) == NULL)
1.1 jsing 1156: goto err;
1157: } else
1158: return NULL;
1159:
1160: /* Add the signature verification flag and arguments. */
1.24 tb 1161: TS_VERIFY_CTX_add_flags(ctx, TS_VFY_SIGNATURE);
1.1 jsing 1162:
1163: /* Initialising the X509_STORE object. */
1.24 tb 1164: if ((store = create_cert_store(ca_path, ca_file)) == NULL)
1.1 jsing 1165: goto err;
1.24 tb 1166: TS_VERIFY_CTX_set_store(ctx, store);
1.1 jsing 1167:
1168: /* Loading untrusted certificates. */
1.24 tb 1169: if (untrusted != NULL) {
1170: if ((certs = TS_CONF_load_certs(untrusted)) == NULL)
1171: goto err;
1172: TS_VERIFY_CTX_set_certs(ctx, certs);
1173: }
1.1 jsing 1174:
1175: ret = 1;
1.15 jsing 1176: err:
1.1 jsing 1177: if (!ret) {
1178: TS_VERIFY_CTX_free(ctx);
1179: ctx = NULL;
1180: }
1181: BIO_free_all(input);
1182: TS_REQ_free(request);
1183: return ctx;
1184: }
1185:
1186: static X509_STORE *
1187: create_cert_store(char *ca_path, char *ca_file)
1188: {
1189: X509_STORE *cert_ctx = NULL;
1190: X509_LOOKUP *lookup = NULL;
1191: int i;
1192:
1193: /* Creating the X509_STORE object. */
1.22 inoguchi 1194: if ((cert_ctx = X509_STORE_new()) == NULL)
1195: goto err;
1.1 jsing 1196:
1197: /* Setting the callback for certificate chain verification. */
1198: X509_STORE_set_verify_cb(cert_ctx, verify_cb);
1199:
1200: /* Adding a trusted certificate directory source. */
1.21 inoguchi 1201: if (ca_path != NULL) {
1.1 jsing 1202: lookup = X509_STORE_add_lookup(cert_ctx,
1203: X509_LOOKUP_hash_dir());
1204: if (lookup == NULL) {
1205: BIO_printf(bio_err, "memory allocation failure\n");
1206: goto err;
1207: }
1208: i = X509_LOOKUP_add_dir(lookup, ca_path, X509_FILETYPE_PEM);
1209: if (!i) {
1210: BIO_printf(bio_err, "Error loading directory %s\n",
1211: ca_path);
1212: goto err;
1213: }
1214: }
1215: /* Adding a trusted certificate file source. */
1.21 inoguchi 1216: if (ca_file != NULL) {
1.1 jsing 1217: lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
1218: if (lookup == NULL) {
1219: BIO_printf(bio_err, "memory allocation failure\n");
1220: goto err;
1221: }
1222: i = X509_LOOKUP_load_file(lookup, ca_file, X509_FILETYPE_PEM);
1223: if (!i) {
1224: BIO_printf(bio_err, "Error loading file %s\n", ca_file);
1225: goto err;
1226: }
1227: }
1228: return cert_ctx;
1.15 jsing 1229: err:
1.1 jsing 1230: X509_STORE_free(cert_ctx);
1231: return NULL;
1232: }
1233:
1234: static int
1.19 inoguchi 1235: verify_cb(int ok, X509_STORE_CTX *ctx)
1.1 jsing 1236: {
1237: /*
1238: char buf[256];
1239:
1240: if (!ok)
1241: {
1242: X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),
1243: buf, sizeof(buf));
1244: printf("%s\n", buf);
1245: printf("error %d at %d depth lookup: %s\n",
1246: ctx->error, ctx->error_depth,
1247: X509_verify_cert_error_string(ctx->error));
1248: }
1249: */
1250:
1251: return ok;
1252: }
![[BACK]](/icons/back.gif){kind=icon}
Return to ts.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / openssl